High Seroprevalence of Helicobacter pylori in Active Bronchiectasis
|
|
- Phebe Craig
- 6 years ago
- Views:
Transcription
1 High Seroprevalence of Helicobacter pylori in Active Bronchiectasis KENNETH W. TSANG, SHIU-KUM LAM, WAH-KIT LAM, JOHAN KARLBERG, BENJAMIN C. WONG, WAYNE H. HU, WING-WAI YEW, and MARY S. IP University Departments of Medicine and Paediatrics, University of Hong Kong, Queen Mary Hospital; and Tuberculosis and Chest Unit, Grantham Hospital, Hong Kong Helicobacter pylori causes chronic inflammation of the gastric mucosa and has been identified in tracheobronchial secretions. Serum IgG against H. pylori was therefore measured prospectively in consecutive subjects with bronchiectasis (n 100; mean age SD yr), active pulmonary tuberculosis (n 87; age, yr), and healthy volunteers (n 94; age, yr). Seropositivity was found in 76.0% of bronchiectatic subjects, which was significantly higher than that of the control (54.3%, p 0.001) and tuberculous (52.9%, p ) groups. Multiple logistic regression, adjusted for age, sex, occupational social class, and number of persons living in the household, showed that H. pylori IgG levels of the bronchiectatic group were still significantly higher than that of the control (p ) and tuberculous (p ) groups. Multiple regression analysis revealed associations between H. pylori serology and sputum volume (p 0.03) and age (p 0.001) in the bronchiectatic patients, but not lung function indices or causes of bronchiectasis. The H. pylori seroprevalence in bronchiectasis was significantly (p ) higher in patients who produced more (83.1%) than those who produced less than 5 ml sputum/24 h (58.6%). This is the first report of a high H. pylori seroprevalence in bronchiectasis which appears to be specific. Further studies are indicated to evaluate the possible pathogenic role of H. pylori in bronchiectasis. Tsang KW, Lam S-K, Lam W-K, Karlberg J, Wong BC, Hu WH, Yew W-W, Ip MS. High seroprevalence of Helicobacter pylori in active bronchiectasis. AM J RESPIR CRIT CARE MED 1998;158: (Received in original form October 22, 1997 and in revised form April 9, 1998) Supported by a Peptic Ulcer Research Grant (The University of Hong Kong). Correspondence and requests for reprints should be addressed to Professor S. K. Lam, M.D., F.R.C.P., F.R.A.C.P., Head, University Department of Medicine, University of Hong Kong, Queen Mary Hospital, Hong Kong. Am J Respir Crit Care Med Vol 158. pp , 1998 Internet address: The relatively recent rediscovery of Helicobacter pylori has revolutionized insights into the pathogenesis and treatment of peptic ulcer disease (1). H. pylori is a microaerophilic gramnegative spiral-shaped bacterium which is causally related to chronic active gastritis (2), peptic ulcer disease (2), primary low-grade B-cell gastric lymphoma (3), and gastric carcinoma (4, 5). Epidemiological studies have revealed an association of H. pylori seroprevalence with increasing age (6), lower socioeconomic status (6, 7), and crowdedness in the household (8) but not gastroesophageal reflux (9) or sex (10). Recently, a high H. pylori seroprevalence has also been found in ischemic heart disease (11), rosacea (12), and childhood growth retardation (7). Bronchiectasis is a chronic infective and inflammatory disease of the tracheobronchial tree and affected patients suffer from recurrent sputum production, hemoptysis, and exacerbations. Although many known causes of bronchiectasis have been identified, over 60% of cases are regarded as idiopathic (13). Despite the disappearance of the original causative assault to the respiratory tract, such as pertussis, these patients continue to produce significant amounts of sputum which indicates an underlying active tracheobronchial inflammation (14). H. pylori has been recently identified in the tracheobronchial aspirates in mechanically ventilated patients and the possibility that it might cause ventilator-associated pneumonia has been raised (15). In addition, other bacteria found in the gastric juice have been isolated from the respiratory tract in situations which favored bacterial colonization of the stomach (16) and where regurgitation of gastric contents into the respiratory tract can occur (17). Although H. pylori is found in tracheobronchial secretions and its role in gastric mucosal inflammation is similar to the pathogenesis in bronchiectasis, i.e., cytokine-mediated (18 21), the seroprevalence of H. pylori in bronchiectasis has not been studied previously. METHODS Subject Recruitment Three groups of subjects, who consented to the provision of venous blood, were recruited consecutively (from January 1996 to December 1996). One hundred patients who suffered from bronchiectasis (diagnosed by typical clinical symptoms and high-resolution computed tomography) who were in steady state (defined by no significant changes in respiratory symptoms or signs for at least 3 wk) and had no active tuberculosis were recruited. Consecutive patients with active pulmonary tuberculosis (diagnosed by sputum microbiology and/or thoracic radiology) were recruited if they were still receiving antituberculous chemotherapy and did not suffer from bronchiectasis. Blood was also collected from normal subjects who attended health exhibitions designed for public health education who themselves had no known history of peptic ulcer, cerebrovascular, ischemic heart, or respiratory diseases. All the subjects were questioned on the number
2 1048 AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE VOL of persons living in the same household and occupationally classified according to the British Registrar General, as classes 1, 2, 3, 4, and 5 for professional, intermediate, skilled manual, partly skilled manual, and unskilled manual workers respectively. The procedures had approval from the institutional ethics committee on human research. Bronchiectatic Patients The following data were collected from the bronchiectatic patients: age, sex, spirometry, i.e., forced expiratory volume in one second (FEV 1 ) and forced vital capacity (FVC) (in percent predicted), 24-h sputum volume collected at home (0 5, 5 10, 10 15, 15 20, 20 30, 30 40, 40 50, ml/24 h as grades 1, 2, 3, 4, 5, 6, 7, 8, respectively), smoking history, history of known ischemic heart disease and proven peptic ulcer, other medical conditions, and the etiology of bronchiectasis (13). Measurement of H. pylori specific Immunoglobulin G (IgG) Using Enzyme-linked Immunosorbent Assay (ELISA) Aliquots of 100 l of IgG calibrator, control and diluted serum from patient or control groups (stored at 70 C before use) were pipetted separately into the microliter wells (coated with purified H. pylori group specific antigens) of a commercially available ELISA kit (Bio- Rad, Hercules, CA) and discarded after incubation for 60 min at 25 C. The wells were washed three times with buffer solution and blotted dry before addition of 100 l of anti-igg enzyme conjugate and incubation at 25 C for 30 min. After washing, the addition of another 100 l of the working solution was followed by incubation at 25 C for 10 min, after which 50 l of stop solution was added at a rapid steady pace into each of the microwells. The absorbance of the wells at 450 nm was read within 20 min and the optical density (and its corresponding concentration) was determined for each batch of experiments. A positive, equivocal, and negative result for IgG against H. pylori was assigned when the concentration was 20, between 12.5 and 20, and 12.5 units (U)/ml, respectively. By using histological examination (Warthin-Starry stain) as the gold standard (22), the sensitivity and specificity of this ELISA kit in our patient population have been found to be 95 and 85% respectively. In the event of an equivocal result, a repeat test was performed on serum obtained 2 wk after the initial venesection, as suggested by the manufacturer. Other Investigations in Bronchiectatic Patients Serum total IgG level was determined using routine nephelometry at the Clinical Biochemistry Department of the University of Hong Kong. The ratio of H. pylori specific IgG to total serum IgG was determined for each patient. Serum IgG levels against the viral capsid antigen (VCA) of Epstein-Barr virus was determined by using routine established methodology at the Clinical Microbiology Laboratory of the University of Hong Kong. Briefly, IgG against Epstein-Barr VCA was determined by immunofluorescent technique using fluorescein isothiocyanate conjugated and heavy chain specific goat anti-human sera (Dako, Glostrup, Denmark). Titers were expressed as the reciprocal of the maximal dilution that gave a positive immunofluorescence as described previously (23). Freshly obtained sputum was plated on Columbia Blood Agar (Oxoid, Basingstoke, UK) with H. pylori Selective Supplements (Oxoid, Basingstoke, UK) which contained vancomycin (10 mg/l), trimethoprim (5 mg/l), cefulodin (5 mg/l), and amphotericin B (5 mg/l). Inoculation was performed within 30 min of sputum collection under standard conditions using Oxoid AnaeroJars and CampyGen (Oxoid, Basingstoke, UK) for at least 3 d. Gram staining and standard microbiological identification procedures were performed on all colonies isolated (24). Statistical Analysis The statistical analysis comprised the Kruskal-Wallis K sample test for comparison of the central tendency between the three groups, i.e., the nonparametric one-way analysis of variance; pair-testing between two groups was made in terms of the Mann-Whitney Wilcoxon test. A nonparametric test was applied because of positively skewed H. pylori serology raw values; a logarithmic transformation gave a distribution acceptably close to normal samples, but this meant that zero serology values could not be used. Fisher exact test was used for binomial data, and the results were then given in terms of odds ratios. A logistic multiple regression model was applied to the data; the serum H. pylori IgG status (positive or otherwise) constituted the dependent variable, and sex, age, number of persons living in the same household, and occupational social class were the independent variables together with the patient group variable. A multiple linear regression was applied to the bronchiectatic patient data; the dependent measure was the serum H. pylori IgG concentration, and the sputum volume and age were the independent measures. A p value below 0.05 was regarded as significant except for the pair-testing situation, when a p value below 0.01 was used. The analysis was performed in the SAS statistical analysis system (25). RESULTS Subject Demography and Other Clinical Features There was no significant difference between the age, number of persons living in the same household, and occupational social class among the three groups (p ) (Table 1). For the bronchiectatic group, the FEV 1 and FVC, 24-h sputum grading, and percent of patients with known ischemic heart disease are shown in Table 2. None of the subjects suffered from rosacea. The etiology of bronchiectasis was considered to be idiopathic, post-tuberculous, postpneumonic, Kartagener s syndrome, or diffuse panbronchiolitis (Table 2). Four bronchiectatic patients, but none of the tuberculous or healthy TABLE 1 DEMOGRAPHY AND CONCENTRATION OF HELICOBACTER PYLORI (HP) IgG IN SUBJECTS Control n 94 (M 32) Bronchiectasis (All) n 100 (38) Bronchiectasis (24-h sputum 5 ml) n 71 (26) Bronchiectasis (24-h sputum 0 5 ml) n 29 (12) Tuberculosis n 87 (71) Age, yr Mean SD % confidence interval HP seropositivity* (% of patients) Serum HP IgG concentration (U/ml) Mean SD, median , , , , , % confidence interval Occupational social class (1 5) Mean SD % confidence interval Number of persons living in the same household Mean SD % confidence interval * Seropositivity for HP defined as serum HP IgG 20 U/ml. Occupational social class categorized as 1 5 according to British Registrar General.
3 Tsang, Lam, Lam, et al.: Helicobacter pylori in Bronchiectasis 1049 TABLE 2 CLINICAL FEATURES OF PATIENTS WITH BRONCHIECTASIS Parameter Bronchiectasis (All) (n 100) Bronchiectasis (24-h sputum 0 5 ml) (n 29) Bronchiectasis (24-h sputum 5 ml) (n 71) FEV 1, % pred Mean SD, Median , , , 63 Range; 5th and 95th centiles ; 60.8, ; 62.4, ; 56.8, 78.6 FVC, % pred Mean SD, median , , , 70 Range; 5th and 95th centiles ; 69.3, ; 69.1, ; 66.5, 78.6 Daily sputum volume grading, Mean SD Known ischemic heart disease, %* Etiology of bronchiectasis, %* Idiopathic Post-tuberculous Postpneumonic Kartagener s syndrome Diffuse panbronchiolitis * Percent of bronchiectatic patients. There was no significant difference between the parameters of the two subgroups of bronchiectatic patients (p 0.05). subjects, had proven peptic ulcer disease. Of these, three patients were seropositive for H. pylori. There was no significant difference between the two subgroups of bronchiectatic patients who had a sputum volume grading of 1 or 1 in the aforementioned parameters. IgG Concentrations The mean level of H. pylori IgG for the bronchiectatic group was significantly higher than that of the control (p 0.001) and tuberculous (p 0.001) groups (Table 1). Using the manufacturer recommended cutoff points, 76.0% of cases were definitely positive, which was significantly higher than control (54.3%, p 0.001) and tuberculous groups (52.9%, p ). There was no significant difference in the IgG levels or the seropositivity between the control and tuberculous groups (p 0.452). H. pylori IgG levels, using the continuous scale, were compared among different groups by using the Kruskal- Wallis test, and the differences were significant (p ). There was no significant difference (p 0.569) in the serology status between the control and the tuberculous subjects when adjusted for the different possible confounding factors (odds ratio [OR] 0.82, 95% confidence interval [CI] 0.41 to 1.63) (Table 3). However, a significant difference was found between the bronchiectatic and the control (p ) and the tuberculous groups (p ). The OR was 2.81 (95% CI 1.49 to 5.29) for a positive H. pylori serology status in the bronchiectatic group when compared with the control group and 2.39 (95% CI 1.18 to 4.84) when compared with tuberculous patients. Within the bronchiectasis group, the idiopathic subgroup had a seroprevalence of 75.6% which was not significantly different from the subgroup which had an identifiable etiology (77.8%) for bronchiectasis (p 0.05). Patients with Bronchiectasis A multiple regression analysis was applied to the H. pylori specific IgG values of the series of 100 patients, which were expressed in a continuous scale, as the dependent measure. The following measures were kept in the final model: sputum volume (t 2.1, p 0.03), age (t 3.2, p 0.001), and female sex (t 2.1, p 0.04). The R-square (the squared multiple correlation coefficient) was 0.17 and the F value for the whole regression model was 6.7 (p ). Other variables included in the model that were not significant were: smoking, FEV 1, and FVC. Increased H. pylori specific IgG values were associated with increased age, higher sputum volume, and female sex. Using a logistic multiple regression analysis, with a H. pylori IgG concentration of 20 U/ml as the cutoff point and adjustment made for age, number of persons living in the same household, occupational social class, and sputum production, the H. pylori seroprevalence in female (80.6%) was not significantly different from that of the male (65.8%) bronchiectatic patients (p 0.05). Other Investigations in Bronchiectatic Patients The median (range) total serum IgG levels were 1,410 (356 to 2,428), 1,480 (356 to 2,428), and 1,270 (804 to 2,130) mg/dl for TABLE 3 RESULTS OF MULTIPLE LOGISTIC REGRESSION ANALYSIS BASED ON THE CONTROL, BRONCHIECTATIC, AND TUBERCULOUS SUBJECTS* Control versus Bronchiectasis Tuberculosis versus Bronchiectasis Control versus Tuberculosis Odds Ratio 95% CI p Value Odds Ratio 95% CI p Value Odds Ratio 95% CI p Value Age Sex No. of persons in the same household Occupational social class Group * Dependent variable was H. pylori specific IgG positivity (determined as 20 U/ml). Occupational social class was determined according to the British Registrar General as 1 5. Odds ratio related to the difference between pair of groups; i.e., control versus bronchiectasis.
4 1050 AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE VOL the entire (n 100), H. pylori seropositive (n 76), and H. pylori seronegative (n 24) groups respectively. There was a significant difference between the total serum IgG in the H. pylori seropositive and the H. pylori seronegative groups (p 0.019). The median (range) ratios of H. pylori specific IgG to total serum IgG levels for the entire, H. pylori seropositive and the H. pylori seronegative groups were (0.001 to 0.080), (0.009 to 0.080), and (0.001 to 0.011) (U dl/ml mg), respectively. The latter two groups were also significantly different (p 0.001). Only one patient, a 45-yr-old female with H. pylori specific IgG of 71.3 U/ml, had undetectable IgG against the VCA of Epstein-Barr virus among the 100 patients with bronchiectasis. The median (range) IgG against Epstein-Barr VCA in the entire, H. pylori seropositive, and H. pylori seronegative groups of bronchiectasis patients were 1/1,280 (1/10,240 to 1/80), 1/1,280 (1/2,415 to 1/160), and 1/1,280 (1/10,240 to 1/80), respectively. There was no significant difference in IgG against Epstein-Barr VCA between the latter two subgroups (p 0.76). There was no correlation between the levels of H. pylori specific IgG with IgG against Epstein-Barr virus (Spearman rank r 0.04, p 0.67). H. pylori was not isolated in the sputum of the 30 patients in the pilot study. DISCUSSION This study shows that there is a high seroprevalence of H. pylori infection in bronchiectasis (76%) which is significantly higher than that of the normal volunteers (54.3%) and tuberculous patients (52.9%). The crowdedness (number of persons living in the same household), occupational social class, and age, which are known to be associated with H. pylori seroprevalence (6, 7), were similar in the three groups of subjects. It is very likely that the abnormally high seroprevalence is specific to bronchiectasis as there was no association with tuberculosis, another chronic infective and inflammatory lung condition. Among the bronchiectatic patients, the sputum producers (i.e., those with 24-h sputum grading 1) had a H. pylori seroprevalence significantly higher (83.1%) than that of the nonproducers (58.6%) (p ). The latter was not significantly different from the control group, which suggests that H. pylori seroprevalence is also specific to the sputum producers (i.e., those with active underlying tracheobronchial inflammation) irrespective of the etiology (idiopathic or not) of bronchiectasis. Multiple regression analysis applied to the data of bronchiectatic patients revealed associations between H. pylori IgG concentrations (continuous values) and sputum volume, age, and female sex, although the sex effect did not remain significant after logistic regression analysis. The other parameters in the regression model, including lung spirometry and etiology of bronchiectasis, showed no correlation with H. pylori serology. As we only employed meticulous history taking and clinical chart review to disclose known diagnosis of peptic ulcer disease, it is possible that, without restoring to gastroscopy and gastric biopsies, peptic ulcer disease might have been missed in some of our bronchiectatic, tuberculous, and healthy subjects. However, it is very unlikely that the significantly higher seroprevalence in bronchiectasis could be entirely accounted for by the missed silent peptic ulcers in our bronchiectatic subjects. A higher serum total IgG was found in the H. pylori seropositive than the seronegative subgroup of patients with bronchiectasis. This raises the possibility that the increase in H. pylori specific IgG might be part of a hyperimmune state in active bronchiectasis rather than a specific phenomenon (13, 14, 18, 20). However, this is extremely unlikely as the ratio of H. pylori specific IgG to total serum IgG was still significantly higher in the H. pylori seropositive compared with the seronegative group of bronchiectatic patients (p 0.001). In addition, there was no difference in the levels of Epstein-Barr VCA-specific IgG between the H. pylori seropositive and seronegative subgroups of patients with bronchiectasis (p 0.76). Finally this possible polyclonal response as a cause of the high concentrations of H. pylori IgG among the sputum producers is not supported by the lack of correlation between the levels of IgG against H. pylori and Epstein-Barr VCA (r 0.04, p 0.67). Our findings are therefore strongly indicative of a specific association of H. pylori seroprevalence with disease activity in bronchiectasis. There are interesting similarities between the pathogenesis of bronchiectasis and ulcerogenesis. In both conditions, there is extensive recruitment of polymorphs and T lymphocytes into the submucosa (18, 19) and cytokine release especially of interleukin-8 (IL-8), tumor necrosis factor-, and IL-1 (20, 21). Respiratory pathogens such as Haemophilus influenzae and Pseudomonas aeruginosa persist in the tracheobronchial tree (26), similar to H. pylori persisting in the stomach for years to decades (27), and these organisms also cause similar ultrastructural damage to the target mucosal cells, such as vacuolation (28 30). Similar to the adherence of Haemophilus influenzae and P. aeruginosa to respiratory mucosa (31), H. pylori also appears to use silica acid residues as its putative receptor on gastric mucosa (32) and has high affinity for mucus (29, 30, 33). Despite the above similarities in the pathogenesis of bronchiectasis and peptic ulcer disease, and the high seroprevalence of H. pylori in bronchiectasis, the possible pathogenic role of H. pylori in bronchiectasis remains unexplored. Seroprevalence of H. pylori, but not bronchiectasis, is associated with lower socioeconomic status (6) and occurs in clusters (8). This suggests that even if H. pylori has a pathogenic role in bronchiectasis, other confounding factors need to be present. The similarities between the pathogenesis in bronchiectasis and ulcerogenesis might also be a reflection of chronic inflammatory disease or bacteria-induced tissue damage. It is also possible that spilling or inhalation of H. pylori or their exotoxins into the respiratory tract might occur in H. pylori infection of the gastrointestinal tract, particularly in light of the high incidence of gastroesophageal reflux in bronchiectasis (34). To our knowledge, this is the first report of a high seroprevalence of H. pylori specific to active bronchiectasis irrespective of its etiology. Although the evidence of an association between the seroprevalence of H. pylori and bronchiectasis appears strong, we were unable to isolate H. pylori in the sputum of bronchiectatic patients. To our knowledge, H. pylori has not been isolated in sputum although it has been identified by using Gram film examination of tracheal aspirate in mechanically ventilated patients in the intensive care setting (15). Further studies designed to evaluate the effects of H. pylori on the respiratory tract and to identify H. pylori in the bronchiectatic respiratory tracts, and clinical longitudinal studies to evaluate the effects of treatment of H. pylori in bronchiectasis should follow this study. Acknowledgment : The authors thank all the subjects who donated their blood. Dr. P. L. Ho of the Department of Clinical Microbiology, the University of Hong Kong, provided expert microbiological opinion. Eileen Kwok, Raymond Leung, and C. S. Ho provided excellent technical assistance in this study. References 1. Graham, D. Y Treatment of peptic ulcers caused by Helicobacter pylori. N. Engl. J. Med. 328:
5 Tsang, Lam, Lam, et al.: Helicobacter pylori in Bronchiectasis Marshall, J., and J. R. Warren Unidentified curved bacilli in the stomach of patients with gastritis and peptic ulceration. Lancet i: Isaacson, P. G., and J. Spencer Is gastric lymphoma an infectious disease? Hum. Pathol. 24: Parsonnet, J., G. D. Friedman, D. P. Vandersteen, Y. Chang, J. H. Vogelman, N. Orentreich, and R. K. Sibley Helicobacter pylori infection and the risk of gastric carcinoma. N. Engl. J. Med. 325: The EUROGAST Study Group An international association between Helicobacter pylori infection and gastric cancer. Lancet 341: Graham, D. Y., H. M. Malaty, D. G. Evans, D. J. Evans Jr., P. D. Klein, and E. Adam Epidemiology of Helicobacter pylori in an asymptomatic population in the United States: effects of age, race, and socioeconomic status. Gastroenterol. 100: Patel, P., M. A. Mendall, S. Khulusi, T. C. Northfield, and D. P. Strachan Helicobacter pylori infection in childhood: risk factors and effect on growth. B.M.J. 309: Mendall, M. A., P. M. Goggin, N. Molineaux, J. Levy, T. Toosy, D. Strachan, and T. C. Northfield Childhood living conditions and Helicobacter pylori seropositivity in adult life. Lancet 339: O Connor, H. J., and K. Cunnane Helicobacter pylori and gastrooesophageal reflux disease a prospective study. Ir. J. Med. Sci. 163: The EUROGAST Study Group Epidemiology of, and risk factors for, Helicobacter pylori infection among 3194 asymptomatic subjects in 17 populations. Gut 34: Mendall, M. A., P. M. Goggin, N. Molineaux, J. Levy, T. Toosy, D. Strachan, and T. C. Northfield Relation of Helicobacter pylori infection and coronary heart disease. Br. Heart J. 71: Rebora, A., F. Drago, and A. Picciotto Helicobacter pylori in patients with rosacea. Am. J. Gastroenterol. 89: Cole, P. J Bronchiectasis. In R. A. L. Brewis, B. Corrin, D. M. Geddes, and G. J. Gibson, editors. Respiratory Medicine. Saunders, London. 1995: Cole, P. J Inflammation: a two edged-sword the model of bronchiectasis. Eur. J. Respir. Dis. Suppl. 147: Mitz, H. S., and S. S. Farber Demonstration of Helicobacter pylori in tracheal secretions. J. Am. Osteopath. Assoc. 93: Du Moulin, G. C., D. G. Paterson, J. Hedley-Whyte, and A. Lisbon Aspiration of gastric bacteria in antacid-treated patients. Lancet i: Ibanez, J., A. Penafiel, J. M. Raurich, P. Marse, J. C. Paternostro, and F. Mata Gastrooesophageal reflux and aspiration of gastric contents during nasogastric feeding, the effects of posture (abstract). Intens. Care Med. 14(Suppl. 2): Lapa e Silva, J. R., J. A. H. Jones, B. Noble, P. J. Cole, and L. W. Poulter The immunological component of the cellular inflammatory infiltrate in bronchiectasis. Thorax 44: Rauws, E. A., W. Langenberg, H. J. Houthoff, H. C. Zanen, and G. N. Tytgat Campylobacter pyloridis associated chronic active antral gastritis. Gastroenterol. 94: Eller, J., J. R. Lapa e Silva, L. W. Poulter, H. Lode, and P. J. Cole Cells and cytokines in chronic bronchial infection. Ann. NY Acad. Sci. 725: Noach, L. A., N. B. Bosma, J. Jansen, F. J. Hoek, S. J. van Deventer, and G. N. Tytgat Mucosal tumour necrotic factor-, interleukin-1, and interleukin 8 production in patients with Helicobacter pylori infection. Scand. J. Gastroenterol. 29: Cutler, A. F., Testing for Helicobacter pylori in clinical practice. Am. J. Med. 100:35S 41S. 23. Ho, H. C., M. H. Ng, and K. C. Kwan Factors affecting serum IgA antibody to Epstein Barr viral capsid antigens in nasopharyngeal carcinoma. Br. J. Cancer 37: Glupczynski, Y Culture of Helicobacter pylori from gastric biopsies and antimicrobial susceptibility testing. In A. Lee and F. Megraud, editors. Helicobacter pylori: Techniques for Clinical Diagnosis and Basic Research. Saunders, London SAS Institute Inc SAS user s guide (statistics version), 5th ed. SAS Institute, Cary, NC. 26. Groeneveld, K., L. van Alphen, P. P. Eijk, G. Visscher, H. M. Jansen, and H. C. Zanen Endogenous and exogenous reinfections by Haemophilus influenzae in patients with chronic obstructive pulmonary disease: the effects of antibiotic treatment on persistence. J. Infect. Dis. 161: Blaser, M. J Helicobacter pylori and the pathogenesis of gastroduodenal inflammation. J. Infect. Dis. 161: Tsang, K. W., A. Rutman, K. Kanthakumar, J. Belcher, V. Lund, D. E. Roberts, P. J. Cole, and R. Wilson Haemophilus influenzae infection of human respiratory mucosa in low concentrations of antibiotics. Am. Rev. Respir. Dis. 148: Tsang, K. W., A. Rutman, E. Tanaka, V. Lund, A. Dewer, P. J. Cole, and R. Wilson Interaction of Pseudomonas aeruginosa with human respiratory mucosa in vitro. Eur. Respir. J. 7: Leunk, R. D., P. T. Johnson, B. C. David, W. G. Kraft, and D. R. Morgan Cytotoxic activity in broth-culture filtrates of Campylobacter pylori. J. Med. Microbiol. 26: Ramphal, R., and M. Pyle Further characterization of the tracheal receptor for Pseudomonas aeruginosa. Eur. J. Clin. Microbiol. 4: Evans, D. G., T. K. Karjalainen, D. J. Evans, Jr., D. Y. Graham, and C. H. Lee Cloning, nucleotide sequence, and expression of a gene encoding an adhesin subunit protein of Helicobacter pylori. J. Bacteriol. 175: Hemalatha, S. G., B. Drumm, and P. Sherman Adherence of Helicobacter pylori to human gastric epithelial cells in vitro. J. Med. Microbiol. 35: Tsang, K. W., W. Hu, W. K. Lam, M. Ip, and S. K. Lam A preliminary study of gastrooesophageal reflux in bronchiectasis (abstract). Am. J. Respir. Crit. Care Med. 155:A107.
Helicobacter pylori Seroprevalence in Patients with Mild Asthma
Tohoku J. Exp. Med., 2005, 207, Helicobacter 287-291pylori Infection in Athmatic Patients 287 Helicobacter pylori Seroprevalence in Patients with Mild Asthma ZHAO JIAN JUN, 1, 2 YANG LEI, 2 YASUO SHIMIZU,
More informationH. pylori Antigen ELISA Kit
H. pylori Antigen ELISA Kit Catalog Number KA3142 96 assays Version: 04 Intended for research use only www.abnova.com Table of Contents Introduction... 3 Intended Use... 3 Background... 3 Principle of
More informationH.pylori IgA Cat #
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite D/E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com See external
More informationH. pylori IgM. Cat # H. pylori IgM ELISA. ELISA: Enzyme Linked Immunosorbent Assay. ELISA - Indirect; Antigen Coated Plate
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite D/E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com H. pylori
More informationH.Pylori IgG
DIAGNOSTIC AUTOMATION, INC. 21250 Califa Street, Suite 102 and116, Woodland Hills, CA 91367 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com
More informationH.Pylori IgG Cat # 1503Z
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite D/E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com See external
More informationH. pylori IgM CLIA kit
H. pylori IgM CLIA kit Cat. No.:DEEL0251 Pkg.Size:96 tests Intended use Helicobacter pylori IgM Chemiluminescence ELISA is intended for use in evaluating the serologic status to H. pylori infection in
More informationH.Pylori IgM Cat # 1504Z
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite D/E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com See external
More informationSee external label 2 C-8 C Σ=96 tests Cat # 1505Z. MICROWELL ELISA H.Pylori IgA Cat # 1505Z
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com See external
More information- Helicobacter - THE EASE AND DIFFICULTY OF A NEW DISCOVERY. Robin Warren
- Helicobacter - THE EASE AND DIFFICULTY OF A NEW DISCOVERY Robin Warren EARLY DAYS First reports 100 years ago considered spirochaetes 1940 Freedburg saw curved organisms in the stomach 1954 Palmer: Freedburg
More informationOnline Data Supplement. Impulse Oscillometry in Adults with Bronchiectasis
Online Data Supplement Impulse Oscillometry in Adults with Bronchiectasis Wei-jie Guan *1, Ph. D.; Yong-hua Gao *2, Ph. D.; Gang Xu *3, Ph. D.; Zhi-ya Lin 1, Ph. D.; Yan Tang 1, M. D.; Hui-min Li 1, M.
More informationThe Nobel Prize in Physiology or Medicine for 2005
The Nobel Prize in Physiology or Medicine for 2005 jointly to Barry J. Marshall and J. Robin Warren for their discovery of "the bacterium Helicobacter pylori and its role in gastritis and peptic ulcer
More informationHelicobacter pylori:an Emerging Pathogen
Bacteriology at UW-Madison Bacteriology 330 Home Page Helicobacter pylori:an Emerging Pathogen by Karrie Holston, Department of Bacteriology University of Wisconsin-Madison Description of Helicobacter
More informationHelicobacter pylori IgA ELISA Kit
Helicobacter pylori IgA ELISA Kit Catalog Number KA0964 96 assays Version: 03 Intended for research use only www.abnova.com Table of Contents Introduction... 3 Intended Use... 3 Background... 3 Principle
More informationCampylobacter like organisms on the gastric mucosa:
J Clin Pathol 1984;37:1002-1006 Campylobacter like organisms on the gastric mucosa: culture, histological, and serological studies DM JONES,* AM LESSELLS,t JOAN ELDRIDGE* From the *Public Health Laboratory
More informationClinical importance of Campylobacter pyloridis and associated serum IgG and IgA antibody responses in
J Clin Pathol 1986;39:215-219 Clinical importance of Campylobacter pyloridis and associated serum IgG and IgA antibody responses in patients undergoing upper gastrointestinal endoscopy LINDA BOOTH, G HOLDSTOCK,
More informationHelicobacter and gastritis
1 Helicobacter and gastritis Dr. Hala Al Daghistani Helicobacter pylori is a spiral-shaped gram-negative rod. H. pylori is associated with antral gastritis, duodenal (peptic) ulcer disease, gastric ulcers,
More informationComparative study of invasive methods for diagnosis of Helicobacter pylori in humans
ISSN: 2319-7706 Volume 2 Number 7 (2013) pp. 63-68 http://www.ijcmas.com Original Research Article Comparative study of invasive methods for diagnosis of Helicobacter pylori in humans V.Subbukesavaraja
More informationImmunoglobulin G Antibody against Helicobacter pylori: Clinical Implications of Levels Found in Serum
CLINICAL AND DIAGNOSTIC LABORATORY IMMUNOLOGY, Sept. 2002, p. 1044 1048 Vol. 9, No. 5 1071-412X/02/$04.00 0 DOI: 10.1128/CDLI.9.5.1044 1048.2002 Copyright 2002, American Society for Microbiology. All Rights
More informationHelicobacter Connections. Barry Marshall
Helicobacter Connections Barry Marshall The greatest obstacle to knowledge is not ignorance, it is the illusion of knowledge. Daniel Boorstein - Historian Peptic Ulcers Duodenal Ulcer (DU) Gastric Ulcer
More informationReQuest H. Pylori IgG
Intended use 01-550H 96 Test Set Enzyme Immunoassay for the Detection of Anti- Helicobacter pylori IgG Antibodies in Human Serum The SeraQuest H. Pylori IgG is a qualitative enzyme immunoassay (EIA) kit
More information(Received September 12, Accepted April 23, 1997) Jpn. J. Med. Sci. Biol., 50, 55-62, 1997.
Jpn. J. Med. Sci. Biol., 50, 55-62, 1997. EVALUATION OF CULTURE, HISTOLOGICAL EXAMINATION, SEROLOGY AND THE RAPID UREASE TEST FOR DIAGNOSIS OF HELICOBACTER PYLORI IN PATIENTS WITH DYSPEPSIA IN BANGLADESH
More informationan inflammation of the bronchial tubes
BRONCHITIS DEFINITION Bronchitis is an inflammation of the bronchial tubes (or bronchi), which are the air passages that extend from the trachea into the small airways and alveoli. Triggers may be infectious
More informationA PLACEBO CONTROLLED TRIAL OF BISMUTH SALICYLATE IN HELICOBACTER PYLORI ASSOCIATED GASTRITIS
A PLACEBO CONTROLLED TRIAL OF BISMUTH SALICYLATE IN HELICOBACTER PYLORI ASSOCIATED GASTRITIS Pages with reference to book, From 154 To 156 Javed Iqbal Kazi, Naeem Aon Jafarey, Syed Mahmood Alam ( Department
More informationQUANTA Lite TM H. pylori IgA ELISA For In Vitro Diagnostic Use CLIA Complexity: High
QUANTA Lite TM H. pylori IgA ELISA 708720 For In Vitro Diagnostic Use CLIA Complexity: High Intended Use The QUANTA Lite TM H. pylori IgA kit is an enzyme-linked immunosorbent assay (ELISA) for the qualitative
More informationHow To Assess Severity and Prognosis
How To Assess Severity and Prognosis Gregory Tino, M.D. Chief, Department of Medicine Penn Presbyterian Medical Center Associate Professor of Medicine Perelman School of Medicine at the University of Pennsylvania
More informationin Pregnancy ABSTRACT
Infectious Diseases in Obstetrics and Gynecology 7:195-198 (1999) (C) 1999 Wiley-Liss, Inc. Increased Susceptibility to Helicobacter pylori Infection in Pregnancy S. Lanciers,,2 B. Despinasse, 1 D.I. Mehta,
More informationDifferential diagnosis
Differential diagnosis The onset of COPD is insidious. Pathological changes may begin years before symptoms appear. The major differential diagnosis is asthma, and in some cases, a clear distinction between
More informationUtility of In House made Rapid Urease Broth Test for Detection of Helicobacter pylori Infection in Resource Constraint Settings
Original article: Utility of In House made Rapid Urease Broth Test for Detection of Helicobacter pylori Infection in Resource Constraint Settings 1.Dr. Swati Rahul Dhope, 2. Dr. Sachinkumar Vasantrao Wankhede
More informationPrevalence of Helicobacter pylori Infection in Korean Children: Inverse Relation to Socioeconomic Status Despite a Uniformly High Prevalence in Adults
American Journal of Epidemiology Copyright 1996 by The Johns Hopkins University School of Hygiene and Public Health AD rights reserved Vol. 143, No. 3 Printed In U.SJL Prevalence of Helicobacter pylori
More informationNew immunoassay for the detection of Helicobacter pylori infection compared with urease test,
Chapter V New immunoassay for the detection of Helicobacter pylori infection compared with urease test, 13C breath test and histology: validation in the primary care setting Catherine F Weijnen 1, Henriëtte
More informationC.S. HAWORTH 1, A. WANNER 2, J. FROEHLICH 3, T. O'NEAL 3, A. DAVIS 4, I. GONDA 3, A. O'DONNELL 5
Inhaled Liposomal Ciprofloxacin in Patients With Non-Cystic Fibrosis Bronchiectasis and Chronic Pseudomonas aeruginosa: Results From Two Parallel Phase III Trials (ORBIT-3 and -4) C.S. HAWORTH 1, A. WANNER
More informationAntimicrobial Stewardship in Community Acquired Pneumonia
Antimicrobial Stewardship in Community Acquired Pneumonia Medicine Review Course 2018 Dr Lee Tau Hong Consultant Department of Infectious Diseases National Centre for Infectious Diseases Scope 1. Diagnosis
More informationCiliary central microtubular orientation is of no clinical significance in bronchiectasis
Title Ciliary central microtubular orientation is of no clinical significance in bronchiectasis Author(s) Tsang, KW; Tipoe, GL; Mak, JC; Sun, J; Wong, M; Leung, R; Tan, KC; MedStat, CKM; Ho, JC; Ho, PL;
More informationPDF hosted at the Radboud Repository of the Radboud University Nijmegen
PDF hosted at the Radboud Repository of the Radboud University Nijmegen The following full text is a publisher's version. For additional information about this publication click this link. http://hdl.handle.net/2066/48400
More informationTable 2.9. Case control studies of helicobacter pylori infection and oesophageal adenocarcinoma
Characteristics of Characteristics of controls Detection Chow et al (1998) 1993-1995 129 of newly diagnosed oesophageal/gastric cardia (OGC) adenocarcinoma. 224 population controls selected by random digit
More informationMycoplasma pneumoniae IgG ELISA Kit
Mycoplasma pneumoniae IgG ELISA Kit Catalog Number KA2260 96 assays Version: 01 Intended for research use only www.abnova.com Table of Contents Introduction... 3 Intended Use... 3 Background... 3 Principle
More informationEvaluation of Three Commercial Enzyme Immunoassays Compared with the 13 C Urea Breath Test for Detection of Helicobacter pylori Infection
JOURNAL OF CLINICAL MICROBIOLOGY, May 1996, p. 1147 1152 Vol. 34, No. 5 0095-1137/96/$04.00 0 Copyright 1996, American Society for Microbiology Evaluation of Three Commercial Enzyme Immunoassays Compared
More informationOral Fluid Antibody Detection in the Diagnosis of Gastric Helicobacter pylori Infection
Oral Fluid Antibody Detection in the Diagnosis of Gastric Helicobacter pylori Infection Behzad Hooshmand 1, Alireza Monsef 2, Mohammad Amirmadglesi 3, and Mani Kashani 4 1 Department of Periodontology
More informationFraming Helicobacter pylori: The Etiology of Peptic Ulcers and Gastritis
Framing Helicobacter pylori: The Etiology of Peptic Ulcers and Gastritis By Aja Dunn Gastritis (inflammation of the stomach); Etiologic agent - Helicobacter pylori (1). Transmission H. pylori infection
More informationIndex. Note: Page numbers of article titles are in boldface type.
Note: Page numbers of article titles are in boldface type. A Adherence, to bismuth quadruple therapy, 543 546 Adjuvant therapy, probiotics as, 567 569 Age factors, in gastric cancer, 611 612, 616 AID protein,
More informationPathogenesis of Infectious Diseases. CLS 212: Medical Microbiology
Pathogenesis of Infectious Diseases CLS 212: Medical Microbiology Definitions Path- means disease. Pathogenesis The steps or mechanisms involved in the development of a disease. Infection The presence
More informationCOUGH Dr. A m A it i e t sh A g A garwa w l Le L ctu t rer Departm t ent t o f f M e M dic i in i e
COUGH Dr. Amitesh Aggarwal Lecturer Department of Medicine Cough is an explosive expiration that provides a normal protective mechanism for clearing the tracheobronchial tree of secretions and foreign
More informationDr Conroy Wong. Professor Richard Beasley. Dr Sarah Mooney. Professor Innes Asher
Professor Richard Beasley University of Otago Director Medical Research Institute of New Zealand Wellington Dr Sarah Mooney Physiotherapy Advanced Clinician Counties Manukau Health NZ Respiratory and Sleep
More informationTHE PREVALENCE OF HELICBACTER PYLORI AMONG PATIENTS COMPLAINING FROM ABDOMINAL PAIN
THE PREVALENCE OF HELICBACTER PYLORI AMONG PATIENTS COMPLAINING FROM ABDOMINAL PAIN Ahed J. Al-Khatib Jordan University of Science and Technology, Jordan Ahmed Saber Abu-zaiton Al-albayt University Abstract
More informationHelicobacter Pylori Testing HELICOBACTER PYLORI TESTING HS-131. Policy Number: HS-131. Original Effective Date: 9/17/2009
Easy Choice Health Plan, Inc. Harmony Health Plan of Illinois, Inc. Missouri Care, Inc. Ohana Health Plan, a plan offered by WellCare Health Insurance of Arizona, Inc. WellCare Health Insurance of Illinois,
More informationRapid-VIDITEST. Helicobacter pylori. One step Helicobacter pylori Blister test. Instruction manual
Rapid-VIDITEST Helicobacter pylori One step Helicobacter pylori Blister test. Instruction manual Producer: VIDIA spol. s r.o., Nad Safinou II 365, 252 50 Vestec, Czech Republic, Tel.: +420 261 090 565,
More informationPrevalence of Helicobacter pylori in Patients with End Stage Renal Disease
2000;20:97-102 Helicobacter pylori Prevalence of Helicobacter pylori in Patients with End Stage Renal Disease Do Ha Kim, M.D., Hwoon-Yong Jung, M.D., Suk-Kyun Yang, M.D. Weon-Seon Hong, M.D. and Young
More informationAnthrax protective antigen IgG ELISA Kit
Anthrax protective antigen IgG ELISA Kit Catalog Number KA0953 96 assays Version: 04 Intended for research use only www.abnova.com Table of Contents Introduction... 3 Intended Use... 3 Background... 3
More informationHelicobacter pylori Infection in Adults from a Poor Urban Community in Northeastern Brazil: Demographic, Lifestyle and Environmental Factors
BJID 2005; 9 (October) 405 Helicobacter pylori Infection in Adults from a Poor Urban Community in Northeastern Brazil: Demographic, Lifestyle and Environmental Factors Maria N. Rodrigues 1, Dulciene M.
More informationDr. LEUNG Lok Hang, Will
Direct access endoscopy booking by family physicians: evaluating a new service model and clinical predictors of positive endoscopy findings at primary care setting Dr. LEUNG Lok Hang, Will Department of
More informationThe role of serum Pseudomonas aeruginosa antibodies in the diagnosis and follow-up of cystic fibrosis
The Turkish Journal of Pediatrics 2013; 55: 50-57 Original The role of serum Pseudomonas aeruginosa antibodies in the diagnosis and follow-up of cystic fibrosis Deniz Doğru 1, Sevgi Pekcan 1, Ebru Yalçın
More informationSystemic markers of inflammation in stable bronchiectasis
Eur Respir J 1998; 12: 820 824 DOI: 10.1183/09031936.98.12040820 Printed in UK - all rights reserved Copyright ERS Journals Ltd 1998 European Respiratory Journal ISSN 0903-1936 Systemic markers of inflammation
More informationKEYWORDS Dyspepsia, Acid Peptic Disease, Helicobacter Pylori, Urease, Giemsa, Peptic Ulcer, Non-Ulcer Dyspepsia.
INCIDENCE OF HELICOBACTER PYLORI WITH ACID PEPTIC DISEASE AND MALIGNANT CONDITIONS OF UPPER GASTROINTESTINAL TRACT IN A TERTIARY CENTRE - A PROSPECTIVE STUDY Karunamoorthy Rajachidambaram 1, Dinkaran Kaarthesan
More informationTable S1. Data on IgG substitution for participants that were included in the per protocol analysis (n=62/arm).
Bergman et al, Vitamin D 3 supplementation in patients with frequent respiratory tract infections - a randomised, double blind intervention study Supplementary tables Table S1. Data on IgG substitution
More informationFecoprevalence and determinants of Helicobacter pylor infection among asymptomatic children in Myanmar
International Journal of Gastroenterology, Hepatology, Transplant & Nutrition Original Article Fecoprevalence and determinants of Helicobacter pylor infection among asymptomatic children in Myanmar Hnin
More informationEvaluation of the Oxoid Xpect Legionella test kit for Detection of Legionella
JCM Accepts, published online ahead of print on 6 May 2009 J. Clin. Microbiol. doi:10.1128/jcm.00397-09 Copyright 2009, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights
More informationCotinine (Mouse/Rat) ELISA Kit
Cotinine (Mouse/Rat) ELISA Kit Catalog Number KA2264 96 assays Version: 03 Intended for research use only www.abnova.com Table of Contents Introduction... 3 Intended Use... 3 Background... 3 Principle
More informationCOMMON VARIABLE IMMUNODEFICIENCY
COMMON VARIABLE IMMUNODEFICIENCY This booklet is intended for use by patients and their families and should not replace advice from a clinical immunologist. 1 COMMON VARIABLE IMMUNODEFICIENCY Also available
More informationInfluenza A H1N1 (Swine Flu 2009) Hemagglutinin / HA ELISA Pair Set
Influenza A H1N1 (Swine Flu 2009) Hemagglutinin / HA ELISA Pair Set Catalog Number : SEK001 To achieve the best assay results, this manual must be read carefully before using this product and the assay
More informationTBLB is not recommended as the initial biopsy option in cases of suspected IPF and is unreliable in the diagnosis of rare lung disease (other than
TBLB is not recommended as the initial biopsy option in cases of suspected IPF and is unreliable in the diagnosis of rare lung disease (other than PAP) BAL is not required as a diagnostic tool in patients
More informationThe prevalence of Helicobacter pylori in practising dental staff and dental students
Australian Dental Journal 1998;43:(1):359 The prevalence of Helicobacter pylori in practising dental staff and dental students Shao K. Lin, MD, PhD* John R. Lambert, FRACP, PhD Mark A. Schembri, PhD Lesley
More informationPULMONARY MEDICINE BOARD REVIEW. Financial Conflicts of Interest. Question #1: Question #1 (Cont.): None. Christopher H. Fanta, M.D.
PULMONARY MEDICINE BOARD REVIEW Christopher H. Fanta, M.D. Pulmonary and Critical Care Division Brigham and Women s Hospital Partners Asthma Center Harvard Medical School Financial Conflicts of Interest
More informationBreastfeeding and Helicobacter Pylori Infection in Children with Digestive Symptoms
Original Article Iran J Pediatr Sep 2010; Vol 20 (No 3), Pp: 330-334 Breastfeeding and Helicobacter Pylori Infection in Children with Digestive Symptoms Maryam Monajemzadeh 1, MD; Fatemeh Farahmand 2,3,
More informationDisclosures. Co-founder and Chief Science Officer, TechLab
H. pylori testing Disclosures Co-founder and Chief Science Officer, TechLab Learning Objectives Evaluate the appropriate testing methodology by balancing performance, economics, and workflow. Discuss the
More informationCatalog # 0W009 0W010 Test Cassettes, murine monoclonal antibody to human IgG (Test Line) and rabbit polyclonal antibody (Control Line)
For in vitro diagnostic use. CLIA Complexity for Whole Blood: WAIVED INTENDED USE The QuickVue H. pylori Test is a lateral-flow immunoassay intended for the rapid, qualitative detection of IgG antibodies
More informationEffect of sibling number in the household and birth order on prevalence of Helicobacter pylori: a cross-sectional study
Published by Oxford University Press on behalf of the International Epidemiological Association ß The Author 2007; all rights reserved. Advance Access publication 28 September 2007 International Journal
More informationESMO Preceptorship Program Head & Neck Cancer NPC: Epidemiology, diagnosis and work-up
ESMO Preceptorship Program Head & Neck Cancer NPC: Epidemiology, diagnosis and work-up Dr. John Woo Consultant, ENT Department, PWH Honorary Clinical Professor, Department of Otorhinolaryngology, H&N Surgery
More informationYersinia pestis. Yersinia and plague. Dr. Hala Al Daghistani
Yersinia pestis Dr. Hala Al Daghistani Yersinia species Short, pleomorphic gram-negative rods that can exhibit bipolar staining. Catalase positive, and microaerophilic or facultatively anaerobic. Animals
More informationSee external label 2 C-8 C 96 tests CHEMILUMINESCENCE. CMV IgG. Cat # Step (20-25 C Room temp.) Volume
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite D/E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com See external
More informationESMO Preceptorship Program Head & Neck Cancer NPC: Epidemiology, diagnosis and work-up
ESMO Preceptorship Program Head & Neck Cancer NPC: Epidemiology, diagnosis and work-up Dr. John Woo Consultant, ENT Department, PWH Honorary Clinical Professor, Department of Otorhinolaryngology, H&N Surgery
More informationChlamydia Trachomatis IgG ELISA Kit
Chlamydia Trachomatis IgG ELISA Kit Catalog Number KA0959 96 assays Version: 03 Intended for research use only www.abnova.com Table of Contents Introduction... 3 Intended Use... 3 Background... 3 Principle
More informationHEALTHCARE-ASSOCIATED PNEUMONIA: EPIDEMIOLOGY, MICROBIOLOGY & PATHOPHYSIOLOGY
HEALTHCARE-ASSOCIATED PNEUMONIA: EPIDEMIOLOGY, MICROBIOLOGY & PATHOPHYSIOLOGY David Jay Weber, M.D., M.P.H. Professor of Medicine, Pediatrics, & Epidemiology Associate Chief Medical Officer, UNC Health
More informationHuman Cytomegalovirus Virus (CMV) IgG ELISA Kit
Human Cytomegalovirus Virus Catalog No: IRAPKT1410 (CMV) IgG ELISA Kit Lot No: SAMPLE INTENDED USE The CMV IgG ELISA is intended for use in evaluating a patient s serologic status to cytomegalovirus (CMV)
More informationORIGINAL ARTICLE /j x
ORIGINAL ARTICLE 1.1111/j.1469-691.24.19.x Chronological evolution of,, and neutralisation antibodies after infection with SARS-associated coronavirus P.-R. Hsueh 1,2, L.-M. Huang 3, P.-J. Chen 2, C.-L.
More informationSerological evidence of Legionella species infection in acute exacerbation of COPD
Eur Respir J 2002; 19: 392 397 DOI: 10.1183/09031936.02.00256702 Printed in UK all rights reserved Copyright #ERS Journals Ltd 2002 European Respiratory Journal ISSN 0903-1936 Serological evidence of Legionella
More informationHealth Benefits of Probiotics: Probiotics for Helicobacter pylori Infection
Food Sci. Technol. Res., 10 (1), 1 5, 2004 Review Health Benefits of Probiotics: Probiotics for Helicobacter pylori Infection Katsunori KIMURA Food Functionality Research Institute, Division of Research
More informationCorrelation Between Endoscopic and Histological Findings in Different Gastroduodenal Lesion and its Association with Helicobacter Pylori
ORIGINAL ARTICLE Correlation Between Endoscopic and Histological Findings in Different Gastroduodenal Lesion and its Association with Helicobacter Pylori *A. Sultana 1, SM Badruddoza 2, F Rahman 3 1 Dr.
More informationMedical Bacteriology- Lecture 13 Gram Negative Coccobacilli Haemophilus Bordetella
Medical Bacteriology- Lecture 13 Gram Negative Coccobacilli Haemophilus Bordetella 1 Haemophilus "loves heme" Small gram-negative coccobacilli Non-spore forming Non-motile Growth is enhanced in CO2 Present
More informationSerodiagnosis of Mycobacterium avium complex pulmonary disease in the USA
ORIGINAL ARTICLE PULMONARY INFECTIONS Serodiagnosis of Mycobacterium avium complex pulmonary disease in the USA Seigo Kitada 1, Adrah Levin 2, Melissa Hiserote 3, Ron J. Harbeck 3, Chris A. Czaja 2,4,
More informationMouse Anti-OVA IgM Antibody Assay Kit
Mouse Anti-OVA IgM Antibody Assay Kit Catalog # 3017 For Research Use Only - Not Human or Therapeutic Use INTRODUCTION Ovalbumin (OVA) is a widely used antigen for inducing allergic reactions in experimental
More informationDiagnostic Evaluation of NTM and Bronchiectasis
Division of Pulmonary, Critical Care and Sleep Medicine Diagnostic Evaluation of NTM and Bronchiectasis Ashwin Basavaraj, MD, FCCP NTM patient education program November 9, 2016 Involves a combination
More information2009 H1N1 Influenza ( Swine Flu ) Hemagglutinin ELISA kit
2009 H1N1 Influenza ( Swine Flu ) Hemagglutinin ELISA kit Catalog Number : SEK001 To achieve the best assay results, this manual must be read carefully before using this product and the assay is run as
More informationCommon things are common, but not always the answer
Kevin Conroy, Joe Mackenzie, Stephen Cowie kevin.conroy@nhs.net Respiratory Dept, Darlington Memorial Hospital, Darlington, UK. Common things are common, but not always the answer Case report Cite as:
More informationHelicobacter 2008;13:1-6. Am J Gastroent 2007;102: Am J of Med 2004;117:31-35.
An Update on Helicobacter pylori and Its Treatment Trenika Mitchell, PharmD, BCPS Clinical Assistant Professor University of Kentucky College of Pharmacy October 18, 2008 Objectives Review the epidemiology
More informationEfficacy of Pseudomonas aeruginosa eradication regimens in bronchiectasis
Efficacy of Pseudomonas aeruginosa eradication regimens in bronchiectasis Vallières, E., Tumelty, K., Tunney, M. M., Hannah, R., Hewitt, O., Elborn, J. S., & Downey, D. G. (2017). Efficacy of Pseudomonas
More informationR eview. Cough: Controversies and Consensus Brian s Case. Acute Cough
R eview Cough: Controversies and Consensus 2011 Copyright Not for Sale or Commercial Distribution Irvin Mayers, MD, FRCPC Unauthorised use prohibited. Authorised users can download, display, view and print
More informationInvestigating respiratory disease
Vet Times The website for the veterinary profession https://www.vettimes.co.uk Investigating respiratory disease Author : David Gibson Categories : Vets Date : August 3, 2009 David Gibson explores diagnostic
More informationGut Lung Axis Implication of the Gut Microbiota beyond its niche
Gut Lung Axis Implication of the Gut Microbiota beyond its niche Reema Subramanian PhD Candidate (4 th year) Supervisor: Prof. Margaret Ip Department of Microbiology, CUHK Joint Graduate Student Seminar
More informationSGRQ Questionnaire assessing respiratory disease-specific quality of life. Questionnaire assessing general quality of life
SUPPLEMENTARY MATERIAL e-table 1: Outcomes studied in present analysis. Outcome Abbreviation Definition Nature of data, direction indicating adverse effect (continuous only) Clinical outcomes- subjective
More informationBronchiectasis in Adults - Suspected
Bronchiectasis in Adults - Suspected Clinical symptoms which may indicate bronchiectasis for patients Take full respiratory history including presenting symptoms, past medical & family history Factors
More informationCatalog # 0W009 0W010 Test Cassettes, murine monoclonal antibody to human IgG (Test Line) and rabbit polyclonal antibody (Control Line) Reagents
For in vitro diagnostic use. CLIA Complexity: MODERATE INTENDED USE The QuickVue H. pylori Test is a lateral-flow immunoassay intended for the rapid, qualitative detection of IgG antibodies specific to
More informationSee external label 96 tests HSV 2 IgA. Cat #
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite D/E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com See external
More informationNon-cystic fibrosis bronchiectasis in childhood: longitudinal growth and lung function
1 Portex Anaesthesia, Intensive Therapy and Respiratory Unit, UCL, Institute of Child Health, London, UK; 2 Department of Respiratory Medicine, Great Ormond Street Hospital for Children NHS Trust, London,
More informationEBV-EA IgG. Cat # 1415Z. EBV -EA IgG ELISA. ELISA: Enzyme Linked Immunosorbent Assay. ELISA - Indirect; Antigen Coated Plate
DIAGNOSTIC AUTOMATION, INC. 23961 Craftsman Road, Suite D/E/F, Calabasas, CA 91302 Tel: (818) 591-3030 Fax: (818) 591-8383 onestep@rapidtest.com technicalsupport@rapidtest.com www.rapidtest.com See external
More informationPost-immunisation gastritis and Helicobacter infection in the mouse: a long term study
Gut 2001;49:467 473 467 PAPERS School of Microbiology and Immunology, University of New South Wales, Sydney, NSW 2052, Australia P Sutton S J Danon L J Thompson J Wilson T Kosaka A Lee Department of Histopathology,
More informationpylori positive patients with duodenal ulcer
Gut 1996; 39: 629-633 629 PAPERS Prevalence of Helicobacter pylori infection and related gastroduodenal lesions in spouses of Helicobacter pylori positive patients with duodenal ulcer F Parente, G Maconi,
More informationH5N1 ( Avian Flu ) Hemagglutinin ELISA Pair Set
H5N1 ( Avian Flu ) Hemagglutinin ELISA Pair Set Catalog Number : SEK002 To achieve the best assay results, this manual must be read carefully before using this product and the assay is run as summarized
More informationCOPD Bronchiectasis Overlap Syndrome.
COPD Bronchiectasis Overlap Syndrome. John R Hurst 1, J Stuart Elborn 2, and Anthony De Soyza 3 on Behalf of the BRONCH-UK Consortium (D Bilton, J Bradley, JS Brown, J Duckers, F Copeland, A Floto, J Foweraker,
More information