Cooke, Nahrwold and Grossman, 1967]. In the present experiments, attempts. Wales, 2033, Australia.
|
|
- Silvia Parker
- 5 years ago
- Views:
Transcription
1 Quarterly Journal of Experimental Phyeiology (1973) 58, BASAL AND POSTPRANDIAL PANCREATIC SECRETION IN RATS. By H. M. SiHw and T. J. HEATH. From the School of Physiology and Pharmacology, The University of New South Wales, Kensington, New South Wales, 2033, Australia. (Received for publication 13th March 1973) When pancreatic juice which was collected separate from bile was diverted from the duodenum of rats for 24 hr, the basal flow rate of juice and its output of protein increased greatly over values recorded immediately after operation. Similar increases were recorded when pancreatic juice was recirculated back into the duodenum for 24 hr. Infusion of bicarbonate or enzyme into the duodenum failed to affect these increases in secretion. Thus the hypersecretion of juice did not appear to be the result of loss of juice from the duodenum. Attempts were then made to estimate rates of pancreatic secretion without diverting bile from the common bile duct. Immediately after operation, rates of pancreatic secretion estimated indirectly from the differences between combined bile-pancreatic juice and bile alone were higher than in those rats in which pancreatic juice was collected by diverting bile from the common bile duct. This suggested that bile in some way assisted the passage of viscous pancreatic juice down the common bile duct. Indirect estimates of pancreatic secretion made 24 hr after operation were greater than the estimates made immediately after operation but were similar to those values obtained after 24 hr in rats from which pure pancreatic juice was collected. This was taken as evidence to support the view that the trauma associated with anaesthesia and surgery may depress the rate of pancreatic secretion and that hypersecretion of juice may indeed be a normal phenomenon. In contrast to the situation reported to exist in dogs, indirect estimates of the effects of feeding on pancreatic secretion were similar irrespective ofwhether secretions were diverted from or returned to the duodenum. At present, there exists very little precise information on either the basal or the postprandial rate of secretion ofpancreatic juice in the rat. It has been shown that when pancreatic juice is diverted from the duodenum of rats and the animals are allowed to recover from the direct effects of anaesthesia and operation for 24 hr, the rate of flow of pancreatic juice and its content of protein increase greatly over those values recorded immediately after operation [Grossman, 1958; Shaw and Heath, 1972]. These rates are much higher than those recorded from anaesthetized rats, and because of this some workers consider that high levels of secretion represent a pathological hypersecretion of the pancreas, and that the volume of juice secreted may have been influenced by diverting pancreatic juice from the intestine [Grossman, 1958]. There are also reports to indicate that pancreatic secretion in response to a meal is altered when pancreatic juice is diverted from the intestine [Annis and Hallenbeck, 1951; Cooke, Nahrwold and Grossman, 1967]. In the present experiments, attempts were made to show that loss of pancreatic juice from the duodenum did not influence either the basal or postprandial level of pancreatic secretion, and that in rats which have recovered from effects of anaesthesia there may exist a high continuous rate of pancreatic secretion. 335
2 336 Shaw and Heath MATERIALS AND METHODS Male albino rats which weighed from g were fasted for 18 hr, then anaesthetized with intraperitoneal pentobarbital sodium (40 mg/kg). Fourteen of the rats each had two cannulas inserted in the common bile duct to collect bile and pancreatic juice separately [Shaw and Heath, 1972]. This method of collecting pancreatic juice entailed the diversion of bile from the common bile duct. Two clear vinyl tubes (i.d mm, o.d mm) were inserted into the duodenum of each rat approximately 15 mm from the pylorus, and were fastened with a purse-string suture. An additional group of 9 rats each had a single cannula inserted in the distal end of the common bile duct to collect combined bile-pancreatic juice. In another group of 6 rats, each had a single cannula placed into the common bile duct at the hilus of the liver to collect pure bile. Each of the rats in the last two groups had a single vinyl tube placed in the duodenum. All rats were allowed to recover from the direct effects of the operation and anaesthetic in Bollman restraining cages for 24 hr. Rats received normal saline either from drinking bottles, or in some cases by infusion into the gut through one of the duodenal cannulas at 1-8 ml./hr with a Harvard infusion pump. Samples of pancreatic juice were collected in plastic vials and the volumes estimated from the net weight. When estimations of bicarbonate concentration were required, pancreatic juice was collected under paraffin oil. The concentration of bicarbonate was estimated by the titrimetric method described by Shaw and Heath [1972], and the concentration of protein by the method of Lowry, Rosebrough, Farr and Randall [1951]. Analyses of variance and Student's t tests were used to estimate the statistical significance of changes that occurred in the various parameters during the experiments. The standard error of the mean (S.E.M.) was estimated from the error mean square (E.M.S.) and the sample number (N): S.E.M. = (E.M.S./N)i RESULTS 1. Basal pancreatic secretion estimated in rats provided with cannulas of the common bile duct to enable collection of pancreatic juice separate from bile The experiments performed on this group of 14 rats were designed to study basal pancreatic secretion in rats in which pure pancreatic juice was collected by diverting bile from the common bile duct. In all rats the flow rate of pancreatic juice and its content of protein were estimated over two 20-min collection periods immediately after cannulation of the common bile duct. No initial estimate was made of the output of bicarbonate, since it would have taken needed for each estimation. several hours to collect the 200,ll. Effects of diversion of pancreatic juice from the duodenum In 6 of the 14 rats, pancreatic juice was diverted from the duodenum, whilst bile was recirculated back through one of the duodenal cannulas. Immediately after cannulation of the common bile duct and while the rats were still under pentobarbital anaesthesia, they secreted pancreatic juice at ,ul./min/kg (Table I). Pancreatic juice was then drained for 24 hr, during which time rats received an infusion of normal saline through the other duodenal cannula. The basal rate of flow of pancreatic juice and its content of bicarbonate and protein
3 Pancreatic Secretion in Rats were then determined during three 40-min collection periods. It was found that the rate of flow of juice and its content of protein had increased significantly (P < 0.001), and had reached values many times greater than those recorded immediately after operation (Table I). TABLE I. Effects on basal pancreatic secretion of diversion or recirculation of pancreatic juice or infu8ion of bicarbonate and trypsin into the duodenum Infusion of Diversion' Recirculation2 HCO, Trypsin4 Number of rats Immediately after operation Flow (l./min/kg) 2-5± ± ±0-2 2*4±O02 Protein output (mg/hr/kg) 9 1± O± ±07 24 hours after operation Flow (,ul./min/kg) 33-4± ± ± ±2-1 Protein output (mg/hr/kg) 37*6±3*1 406± ± ±3-7 Bicarbonate output (,u-equiv/min/kg) 076±0± ± ± ±0*08 1 Pancreatic juice was diverted from the duodenum since cannulation of the common bile duct. 2 Pancreatic juice was recirculated into the duodenum since cannulation of the common bile duct. 3 Pancreatic juice was diverted from the duodenum but sodium bicarbonate solution was infused continuously since cannulation of the common bile duct. 4 Pancreatic juice was diverted from the duodenum for 24 hr and then trypsin-sodium bicarbonate solution was infused into the duodenum for 3 hr. Effects of recirculation of pancreatic juice back into the duodenum In 4 of the 14 rats, bile and all pancreatic juice except one 50,ul. aliquot necessary for protein estimation was recirculated back into the duodenum of the rats for 24 hr. The rate of flow of pancreatic juice and its content of protein were determined immediately after cannulation of the common bile duct, and during three 40-min collection periods 24 hr later. The results obtained from these rats initially and those obtained after 24 hr were similar to those obtained with the first group of 6 rats from which pancreatic juice had been drained for 24 hr (Table I). Effects of diversion of pancreatic juice but infusion of bicarbonate and enzyme to the duodenum In the remaining 4 of the 14 rats, pancreatic juice was diverted from the duodenum, whilst bile was recirculated back through one of the duodenal cannulas. Initial values for flow rate and protein output were estimated, and did not differ significantly from those recorded in the first two groups of rats (Table I). VOL. LVIIII, NO
4 338 Shaw and Heath During the entire 24-hour period after operation, each rat received an infusion of NaHCO m-equiv/hr into the duodenum. This solution contained NaHCO3 dissolved in normal saline to produce a final concentration of 30 m- equiv/l. The ph of this solution was 8-3 and the osmolality was adjusted to 280 m-osmole/kg with distilled water. It was estimated that this amount of bicarbonate was more than three times the amount normally delivered to the duodenum by pancreatic juice [Shaw and Heath, 1972]. The basal rate of flow of pancreatic juice and its content of bicarbonate and protein were determined during three 40-min periods. It was found that the rate of flow of pancreatic juice and its content of bicarbonate and protein reached values similar to those recorded 24 hr after operation in the first group of rats in which pancreatic juice was diverted from the duodenum (Table I). The rats then received an infusion of trypsin (15 mg/hr) into the duodenum for the next five 40-min periods and pancreatic juice was collected during each period. This solution contained pancreatic trypsin (Sigma Chemical Company, St. Louis, Mo.) 8 mg/ml. in sodium bicarbonate 30 m-equiv/l.; the ph of the solution was 8-3 and the osmolality was 280 m-osmole/kg. The trypsin-sodium bicarbonate solution was stored at 0 C, but brought to 37 C just prior to infusion. It was estimated that the amount of enzyme activity infused into the duodenum of these rats was approximately the same as would have been secreted by rats with chronic diversion of pancreatic juice [Shaw and Heath, 1972]. Although this trypsinsodium bicarbonate solution was infused into the duodenum for more than 3 hr, no changes in pancreatic secretion were detected (Table I). 2. Basal and postprandial pancreatic secretion estimated in rats in which pancreatic juice was not separated from bile The experiments performed on rats from this group of 15 rats were designed to study the basal and postprandial levels of pancreatic secretion under more physiological conditions. Pancreatic juice is a viscous substance, and because of this, bile may normally assist the passage of pancreatic juice down the common bile duct. Any errors in estimating pancreatic secretory rate brought about by diverting bile from the common bile duct were therefore obviated by the collection of combined bile-pancreatic juice. In all rats, the flow rate of secretions and their content of protein were estimated directly after cannulation of the duct. Relatively large volumes of juice were needed to estimate bicarbonate concentration and as we were attempting to recirculate as much juice as possible into the duodenum, these estimates were not made. Effects of recirculation of combined bile-pancreatic juice back into the duodenum, and the response of the combined secretion to feeding In 9 of the 15 rats, all bile-pancreatic juice except one 50,ul. aliquot necessary for protein estimation was recirculated back into the duodenum through the duodenal cannula for 24 hr, then the rate of flow of bile-pancreatic juice was estimated during three 40-min collection periods. It was found that the flow rate and protein output of the combined secretion had increased significantly
5 Pancreatic Secretion in Rats over values obtained for these parameters immediately after operation (P < 0-001; Table II). The responses of bile-pancreatic juice to feeding were then determined. Rats were offered 3 g of dried food (Liver Dinner, Kg Pet Foods, Carnation Co. Pty. Ltd., Blacktown, N.S.W.) during the fourth 40-min period. Bile-pancreatic juice was collected for the subsequent three 40-min collection periods, but was re-infused back into the duodenum immediately after flow rate had been estimated. Significant increases over control values were recorded during all four 40-min collection periods in the rate of flow of the combined secretion (P < 0-001; Fig. 1). After the feeding experiments, bile-pancreatic juice was diverted from the duodenum of the rats for a further period of 24 hr. After this period of drainage, the basal flow rate of bile-pancreatic juice fell to 51-0±5*4,ul./min/kg. This was assumed to be due to the interruption of the enterohepatic circulation of bile salts and the consequent fall in the bile fraction of the combined secretion. The rats were then fed again, but the combined secretion was not returned to the duodenum. It was found that the average percentage increase in flow after feeding (41 %) was similar to that obtained on the previous day during continuous replacement of the secretion into the duodenum (Fig. 1). TABLE II. Effects on indirect estimates of basal pancreatic secretion of recirculation of pancreatic juice back into the duodenum Estimated Bile-pancreatic pancreatic juice Bile juice' Number of rats 9 6 Immediately after operation Flow (,ul./min/kg) 51-6±1'5 37.5±i ±2.1 Protein output (mg/hr/kg) 33.0± ± ± hours after operation2 Flow (,ul./min/kg) 66.3 ± ± ±4-1 Protein output (mg/hr/kg) 41.7± ± ± Indirect estimates of flow rate and protein output in pancreatic juice were made by subtracting the values for these parameters in bile from the corresponding values in combined bile-pancreatic juice. 2 Both combined bile-pancreatic juice and bile were recirculated into the duodenum since cannulation of the common bile duct. Effects of recirculation of bile back into the duodenum, and the choleretic response to feeding In the remaining 6 of the 15 rats, a protocol similar to that used in the previous group of 9 rats was followed except that in these rats, bile alone was collected. When the enterohepatic circulation of bile salts was kept intact by recirculating bile back into the duodenum for 24 hr, no significant changes occurred in the flow rate or output of protein in bile (Table II). When these rats were fed and bile was continuously re-infused into the duodenum, small but significant increases over control values were recorded during all four 40-min collection periods in the rate of flow of bile (P < 0-001; Fig. 1). After bile was drained for 24 hr, its flow rate decreased to 17-7 ±0-6
6 Shaw and Heath 4l./min/kg due to interruption of the enterohepatic circulation of bile salts. When these rats were fed, but bile was not returned back into the duodenum, the average percentage increase in flow after feeding (18%) was similar to that obtained on the previous day during continuous replacement of bile into the duodenum (Fig. 1). RETURNED NOT RETURNED 120 COMBINED BILE-PANCREATIC JUICE FOOD FOOD 90 'I I cm 1 o c I E BILE FOOD rihs s * * s ~~ 340 I II I- FOOD frrm I I I " I I I I htff TIME (nin) FIG. 1. Effects of diversion of combined bile-pancreatic juice and bile from the duodenum on the postprandial level ofthese secretions. The top panels show the mean flows of combined bile-pancreatic juice in 9 rats after feeding when the combined secretions were returned and not returned back into the duodenum. The bottom panels show the mean flows of bile in 6 rats after feeding when bile was returned and not returned back into the duodenum. Vertical bars at the left represent ±S.E.M. for a single time interval. It was considered that a more physiological measure for the values of the parameters in pancreatic juice could be made by subtracting the- values for flow rate and protein output in bile from the corresponding values for these parameters in combined bile-pancreatic juice. If it is assumed that the differences represented estimates of pancreatic secretion, it was found that both flow rate and protein output immediately after operation were much higher than
7 Pancreatic Secretion in Rats those estimated immediately after operation from rats in which pure pancreatic juice was collected by diverting bile from the common bile duct (P < 0*001; Tables I and II). It was also found that after 24 hr of recirculation, the values for these parameters tended to increase significantly (P < 0 001) over those obtained immediately after operation, and to approach levels obtained after 24 hr recirculation from rats in which pure pancreatic juice was collected (Tables I and II.) DIsCUSSION The present experiments have indicated that when pancreatic juice is diverted from fasting conscious rats for 24 hr, the rate of flow of pancreatic juice and its content of protein increase greatly over those values recorded immediately after operation. Similar findings have been reported by Grossman [1958]. In other rats in which both bile and pancreatic juice were recirculated for 24 hr, the values for flow of pancreatic juice and content of protein and bicarbonate reached values similar to those obtained in rats when pancreatic juice was diverted from the duodenum. These findings are similar to those of Zucker, Newburger and Berg [1932] and Scott, Graham and McCartney [1940] who showed that uninterrupted introduction of pancreatic juice to the duodenum of conscious dogs failed to diminish the continuous high rate of flow of pancreatic juice. Nevertheless, the situation appears to differ in anaesthetized rats, since Green and Lyman [1972] have shown that return of bile-pancreatic juice prevents any increases in pancreatic enzyme secretion. In rats in which pancreatic juice was diverted from the duodenum, it was found that neither the infusion of bicarbonate solution nor trypsin-bicarbonate solution into the duodenum prevented these increases in pancreatic secretion. Thus it would appear that these increases are probably not due to either excess acidity of the duodenum as suggested by Cooke, Nahrwold and Grossman [1967], or absence of feedback inhibition from proteolytic enzymes in the intestine as suggested by Green and Lyman [1972], both of which could be brought about by diversion of pancreatic juice from the duodenum. Most of the information on rate ofpancreatic secretion in rats has been derived from experiments on anaesthetized animals, in which very small amounts of pancreatic juice are secreted under basal conditions [Debray, de la Tour, Vaille, Roze and Souchard, 1962; Ramirez, Hubel and Clifton, 1966; Heatley, 1968; Dockray, 1972]. Thus the high rates of flow recorded in conscious rats have been regarded as unphysiological by some workers [Dockray, 1972; Green and Lyman, 1972]. The initial slow rate of secretion in anaesthetized rats may be due to two factors. Firstly, it seems likely that anaesthesia and the immediate effects of operation may depress pancreatic secretion [Colwell, 1951; Scott, Graham and McCartney, 1940; Zucker, Newburger and Berg, 1932]. Secondly, in order to collect pure pancreatic juice and estimate flow rate, most workers insert a cannula into the most distal portion of the common bile duct, then either ligate the bile duct at the hilus of the liver [Dockray, 1972], drain bile to the exterior [Debray, de la Tour, Vaille, Roze and Souchard, 1962] or 341
8 342 Shaw and Heath redivert bile to the duodenum [Love, 1957]. In all these cases an abnormal situation may be created, since bile, which is secreted at high pressures even in anaesthetized animals [Mann and Foster, 1918] and may normally assist the passage of viscous pancreatic juice down the common bile duct, is absent, and so cannot perform this function. As a result of this diversion of bile from the common bile duct, coupled with the effects of anaesthesia, abnormally irregular or slow flow of pancreatic juice may occur, and this may make the estimation of the rate of basal pancreatic secretion technically difficult in anaesthetized rats [Heatley, 1968]. When the possible errors brought about by diversion of bile from the common bile duct were obviated, and initial rates of flow of pancreatic juice and output of protein were estimated from the difference between combined bile-pancreatic juice and bile, evidence was obtained to support the view that in fasted anaesthetized rats immediately after operation, there exists a high rate of flow of pancreatic juice and output of protein. When the rats were allowed to recover from the direct effects of operation and anaesthesia for 24 hr, and when both secretions were recirculated to the animals, the values for these parameters in pancreatic juice increased, indicating that pancreatic secretion may have been initially depressed by the trauma of anaesthesia and operation. When rats were fed, it was found that regardless of whether combined bilepancreatic juice was being continuously returned to the animals or not, the average percentage increases in the flow of the combined secretions were similar. Since in another group of rats, the average percentage increases in bile flow were also similar irrespective of whether bile was returned to the duodenum or not, it was considered reasonable to assume that the pancreatic response to feeding might also be the same whether pancreatic juice was returned or not. These findings are in contrast to the situation reported to exist in dogs. Annis and Hallenbeck [1951] showed that returning pancreatic juice to the small intestine during feeding experiments reduced by about 50% the volume of juice and its content of bicarbonate. Similarly, Cooke, Nahrwold and Grossman [1967] found that when pancreatic juice was re-introduced into the duodenum of dogs, peak bicarbonate and volume of juice was about 60% of that obtained when all pancreatic juice was diverted to the exterior. Nevertheless, they could demonstrate no change in the pancreatic enzyme response to feeding, regardless of whether pancreatic juice was diverted from the duodenum or not. Therefore, it is possible that the control of postprandial pancreatic secretion in rats could differ in some respects from that in dogs. The present experiments have indicated that in rats, the rate of flow of pancreatic juice and its output of protein may be initially depressed due to the effects of anaesthesia and operation. Diversion of pancreatic juice from the duodenum does not appear to cause the hypersecretion of juice or influence postprandial levels of secretion. Since indirect estimates of pancreatic secretion have provided evidence in support of the view that rates of pancreatic secretion recorded from anaesthetized rats may be artefactual, it is possible that the hypersecretion of pancreatic juice in this species may represent a normal phenomenon.
9 Pancreatic Secretion in Rats 343 REFERENCES ANNIS, D. and HALLENBECK, G. A. (1951). Effect of excluding pancreatic juice from duodenum on secretory response of pancreas to a meal. Proceedings of the Society of Experimental Biology and Mledicine, 77, COLWELL, A. R. (1951). Collection of pancreatic juice from rats and consequences of its continued loss. American Journal of Physiology, 164, COOKE, A. R., NAHRWOLD, D. L. and GROSSMAN, M. I. (1967). Diversion of pancreatic juice on gastric and pancreatic response to a meal stimulus. American Journal of Physiology, 213, DEBRAY, C., DE LA TOUR, J., VAILLE, C., RoziE, C. and SOUCHARD, M. (1962). Contribution 'a l'etude de la s6cretion biliare et pancreatique externe chez le rat. Journal de Physiologie, 54, DOCKRAY, G. J. (1972). The action of secretin, cholecystokinin-pancreozymin and caerulein on pancreatic secretion in the rat. Journal of Physiology, 225, GREEN, G. M. and LYMAN, R. L. (1972). Feedback regulation of pancreatic enzyme secretion as a mechanism for trypsin inhibitor-induced hypersecretion in rats. Proceedings of the Society of Experimental Biology and Medicine, 140, GROSSMAN, M. I. (1958). Pancreatic secretion in the rat. American Journal of Physiology, 194, HEATLEY, N. G. (1968). The assay of secretin in the rat. Journal of Endocrinology, 42, LOVE, J. W. (1957). A method for the assay of secretin, using rats. Quarterly Journal of Experimental Physiology, 42, LOWRY, 0. H., ROSEBROUGH, N. J., FARR, A. L. and RANDALL, R. J. (1951). Protein measurement with the folin phenol reagent. Journal of Biological Chemistry, 193, MANN, F. C. and FOSTER, J. P. (1918). The secretory pressure of the liver with special reference to the presence or absence of a gallbladder. American Journal of Physiology, 47, RAMIREZ, J., HuBEL, K. A. and CLIFTON, J. A. ( 1966). Intestinal factors affecting pancreatic exocrine secretion in the rat. American Journal of Physiology, 211, SCOTT, V. B., GRAHAM, J. S. and MCCARTTN Y, D. H. (1940). Exocrine pancreatic secretion in the fasting dog. American Journal of Digestive Diseases, 7, SHAW, H. M. and HEATH, T. (1972). The significance of hormones, bile salts, and feeding in the regulation of bile and other digestive secretions in the rat. Australian Journal of Biological Sciences, 25, ZUCKER, T. F., NEWBURGER, P. G. and BERG, B. N. (1932). Continuous pancreatic secretion. American Journal of Physiology, 102,
THE SIGNIFICANCE OF HORMONES, BILE SALTS, AND FEEDING IN THE REGULATION OF BILE AND OTHER DIGESTIVE SECRETIONS IN THE RAT
THE SIGNIFICANCE OF HORMONES, BILE SALTS, AND FEEDING IN THE REGULATION OF BILE AND OTHER DIGESTIVE SECRETIONS IN THE RAT By H. M. SHA w* and T. HEATH* [Manuscript received 16 July 1971] Abstract Conscious
More informationAccording to Sperber [1965], bile secretion in many species is mainly due to. South Wales, 2033, Australia.
Quarterly Journal of Experimental Physiology (1974) 59, 93-2 REGULATION OF BILE FORMATION IN RABBITS AND GUINEA PIGS. By H. M. SHAW and T. J. HEATH. From the School of Physiology and Pharmacology, The
More informationSIMULTANEOUS MEASUREMENT OF THE PANCREATIC AND BILIARY RESPONSE TO CCK AND SECRETIN
GASTROENTEROLOGY 70:403-407, 1976 Copyright 1976 by The Williams & Wilkins Co. Vol. 70, No. 3 Printed in U.S.A. SIMULTANEOUS MEASUREMENT OF THE PANCREATIC AND BILIARY RESPONSE TO CCK AND SECRETIN Primate
More informationEffect of acid infusion into various levels of the intestine on gastric and pancreatic secretion in the cat
Gut, 1969, 10, 749-753 Effect of acid infusion into various levels of the intestine on gastric and pancreatic secretion in the cat S. J. KONTUREK, J. DUBIEL, AND B. GABRY9 From the Department of Medicine,
More informationREGULATION OF OUTPUT OF ELECTROLYTES IN BILE AND PANCREATIC JUICE IN SHEEP. [Manuscript received 14 September 1971] AbBtract
REGULATION OF OUTPUT OF ELECTROLYTES IN BILE AND PANCREATIC JUICE IN SHEEP By 1. CAPLE* and T. HEATH* [Manuscript received 14 September 1971] AbBtract and pancreatic juice were collected from conscious,
More informationEFFECTS OF EXOGENOUSLY ADDED SHORT-CHAIN FATTY ACIDS ON PANCREATIC EXOCRINE SECRETION IN DOMESTIC RABBIT
EFFECTS OF EXOGENOUSLY ADDED SHORT-CHAIN FATTY ACIDS ON PANCREATIC EXOCRINE SECRETION IN DOMESTIC RABBIT DOJANA N 1., POP A 2., PAPUC C 3. 1 Department of Animal Physiology, Faculty of Veterinary Medicine,
More informationTHE DEPENDENCE OF EXOCRINE PANCREATIC SECRETION ON INSULIN IN SHEEP
Quarterly Journal of Experimental Physiology (1984) 69, 35-39 3 5 Printed in Great Britain THE DEPENDENCE OF EXOCRINE PANCREATIC SECRETION ON INSULIN IN SHEEP STEFAN PIERZYNOWSKI AND W. BAREJ The Institute
More informationto food and histamine
Gut, 97,, 53-57 Maximal acid response of Pavlov pouches to food and histamine A. MARVIN BROOKS AND MORTON I. GROSSMAN From the Veterans Administration Center and UCLA School of Medicine, Departments of
More informationDiversion of bile and pancreatic juices from the duodenum to the jejunum has
GASTROENTEROLOGY Copyright 1969 by The Williams & Wilkins Co. Vol. 56, No.4 Printed in U.S.A. EFFECT OF EXCLUSION, ACIDIFICATION, AND EXCISION OF THE DUODENUM ON GASTRIC ACID SECRETION AND THE PRODUCTION
More informationMedicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada, AIB 3V6.
Quarterly Journal ofexperimentalphysiology (1978) 63, 255-264 ENHANCED INTESTINAL LYMPH FORMATION DURING FAT ABSORPTION: THE IMPORTANCE OF TRIGLYCERIDE HYDRO- LYSIS. By S. G. TURNER* and J. A. BARROWMAN.
More informationNOTES: The Digestive System (Ch 14, part 2)
NOTES: The Digestive System (Ch 14, part 2) PANCREAS Structure of the pancreas: The pancreas produces PANCREATIC JUICE that is then secreted into a pancreatic duct. The PANCREATIC DUCT leads to the The
More informationControl of Glucose Metabolism
Glucose Metabolism Control of Glucose Metabolism The pancreas is both an exocrine and endocrine gland. It secretes digestive enzymes into the duodenum (exocrine) and 3 specific hormones into the bloodstream
More informationEFFECT OF VAGOTOMY ON PANCREATIC SECRETION STIMULATED BY ENDOGENOUS AND EXOGENOUS SECRETIN
GASTROENTEROLOGY Copyright,. 1971 by The Williams & Wilkins Co. Vol. 60, No. 3 P>-inted in U. S. A. EFFECT OF VAGOTOMY ON PANCREATIC SECRETION STIMULATED BY ENDOGENOUS AND EXOGENOUS SECRETIN HARRIS J.
More informationFat absorption in pancreatic deficiency in rats
Gut, 1966, 7, 114 Fat absorption in pancreatic deficiency in rats J. MASAREI1 AND W. J. SIMMONDS From the Department ofphysiology, the University of Western Australia, Nedlands, Western Australia EDITORIAL
More informationDigestive System Module 6: Accessory Organs in Digestion: The Liver, Pancreas, and Gallbladder
Connexions module: m49293 1 Digestive System Module 6: Accessory Organs in Digestion: The Liver, Pancreas, and Gallbladder Donna Browne Based on Accessory Organs in Digestion: The Liver, Pancreas, and
More informationA Cholecystokinin-releasing Factor Mediates Ethanol-induced Stimulation of Rat Pancreatic Secretion
A Cholecystokinin-releasing Factor Mediates Ethanol-induced Stimulation of Rat Pancreatic Secretion A.K. Saluja, L. Lu, Y. Yamaguchi, B. Hofbauer, M. Rünzi, R. Dawra, M. Bhatia, and M.L. Steer Department
More informationsatisfactorily as a means of altering experimentally the ph of the upper
THE REACTION QF HUMAN DUODENAL CONTENTS TO ACID AND ALKALINE MEAT MIXTURES By STACY R. METTIER (From I1e Thorndike Memorial Laboratory, Boston City Hospital, and the Department of Medicine, Harvard Medical
More informationChapter 15 Gastrointestinal System
Chapter 15 Gastrointestinal System Dr. LL Wang E-mail: wanglinlin@zju.edu.cn Rm 608, Block B, Research Building, School of Medicine, Zijingang Campus Pancreatic Secretion The exocrine cells in the pancreas
More informationrabbit, 45 min for dog) and more slowly for dehydrocholic acid (25- decrease, questioning the mechanism by which bile acids increase bile
J. Physiol. (1972), 224, pp. 259-269 259 With 6 text-ftgure8 Printed in Great Britain SPECIES DIFFERENCES IN THE CHOLERETIC RESPONSE TO BILE SALTS BY CURTIS D. KLAASSEN From the Clinical Pharmacology and
More information(GH-RIH), which were shown to inhibit the release of CCK induced by. (OP-CCK) as well as a small rise in bicarbonate output attaining a peak
J. Phyaiol. (1976), 257, pp. 663-672 663 With 5 text-ftgure8 Printed in Great Britain EFFECT OF BOMBESIN AND RELATED PEPTIDES ON THE RELEASE AND ACTION OF INTESTINAL HORMONES ON PANCREATIC SECRETION By
More informationSphincters heartburn diaphragm The Stomach gastric glands pepsin, chyme The Small Intestine 1-Digestion Is Completed in the Small Intestine duodenum
Sphincters are muscles that encircle tubes and act as valves. The tubes close when the sphincters contract and they open when the sphincters relax. When food or saliva is swallowed, the sphincter relaxes
More informationTHE INHIBITORY EFFECT OF STILBOESTROL ON GASTRIC SECRETION IN CATS
Brit. J. Pharmacol. (1950), 5, 3S9. THE INHIBITORY EFFECT OF STILBOESTROL ON GASTRIC SECRETION IN CATS BY K. N. OJHA* AND D. R. WOOD From the Department of Pharmacology and Therapeutics, University of
More informationUnderstandings, Applications & Skills
D.2 Digestion Understandings, Applications & Skills Statement D.2.U1 Nervous and hormonal mechanisms control the secretion of digestive juices. D.2.U2 Exocrine glands secrete to the surface of the body
More informationINFLUENCE OF INTRAJEJUNAL GLUCOSE ON PANCREATIC EXOCRINE FUNCTION IN MAN
GASTROENTEROLOGY Copyright @ 1971 by The Williams & Wilkins Co. Vol. 60, No.5 Printed in U.S.A. INFLUENCE OF INTRAJEJUNAL GLUCOSE ON PANCREATIC EXOCRINE FUNCTION IN MAN WALTER P, DYCK, M.D. Department
More informationmdlecine, Universite de Montreal, Montreal, Quebec, Canada H3C 1C5
J. Phy8iol. (1982), 322, pp. 71-82 71 With 1 text-figure Printed in Great Britain EXOCRINE PANCREATIC FUNCTION FOLLOWING PROXIMAL SMALL BOWEL RESECTION IN RATS BY MONIQUE D. GELINAS, CLAUDE L. MORIN AND
More informationBILE FORMATION, ENTEROHEPATIC CIRCULATION & BILE SALTS
1 BILE FORMATION, ENTEROHEPATIC CIRCULATION & BILE SALTS Color index Important Further explanation 2 Mind map...3 Functions of bile & stages of bile secretion... 4 Characteristics & composition of bile...5
More informationTHE INS AND OUTS OF BICARBONATE IN THE ALIMENTARY TRACT
GASTROENTEROLOGY Copyright 1968 by The William. &: Wilkins Co. Vol. 54, No.4, Part 1 of 2 Part. Printed in U.S.A. THE INS AND OUTS OF BICARBONATE IN THE ALIMENTARY TRACT In a dog that has eaten a test
More informationLipid Digestion. An Introduction to Lipid Transport and Digestion with consideration of High Density and Low Density Lipoproteins.
Digestion An Introduction to Transport and Digestion with consideration of High Density and Low Density Lipoproteins By Noel Ways Suspension and Nutralization of Chyme ph Boli containing lipids enters
More informationDiagnosis of chronic Pancreatitis. Christoph Beglinger, University Hospital Basel, Switzerland
Diagnosis of chronic Pancreatitis Christoph Beglinger, University Hospital Basel, Switzerland Pancreatitis Pancreas Pancreas - an organ that makes bicarbonate to neutralize gastric acid, enzymes to digest
More informationFeedRite Feeding Tube. Alex Heilman Graham Husband Katherine Jones Ying Lin
FeedRite Feeding Tube Alex Heilman Graham Husband Katherine Jones Ying Lin Problem Statement Gastric bypass is an invasive procedure that requires up to 5 days of hospitalization and has a narrow patient
More informationPeptic Ulcer Disease: Zollinger-Ellison Syndrome
GASTROINTESTINAL PHYSIOLOGY 235 Case 41 Peptic Ulcer Disease: Zollinger-Ellison Syndrome Abe Rosenfeld, who is 47 years old, owns a house painting business with his brothers. The brothers pride themselves
More informationinterstitium at pressures below the maximum secretory pressure of the pancreas. The ink
Gut, 1970, 11, 69-73 Effect of pressure on the integrity of the duct-acinar system of the pancreas R. C. PIROLA1 AND A. E. DAVIS From the Department of Medicine, Prince Henry Hospital, Sydney, Australia
More informationTHE DIGESTIVE SYSTEM
THE DIGESTIVE SYSTEM Composed of two parts: 1. 2. There are 4 main parts of digestion: 1. Ingestion: 2. Digestion: a. Mechanical Digestion: Example: b. Chemical Digestion: Example: 3. Absorption: 4. Egestion:
More informationBabkin, Savitsch) that pancreatic secretion is due, in part, to reflex
THE MECHANISM OF PANCREATIC DIGESTION-THE FUNCTION OF SECRETIN. BY J. MELLANBY. (From the Physiological Laboratory, St Thomas's Hospital, London.) A SECRETION of pancreatic juice may be evoked by appropriate
More information*1 p.c. NaOH, 75 p.c. alcohol and 75 p.c. acetone. Further, it has been
THE SECRETION OF PANCREATIC JUICE. By J. MELLANBY. (From the Physiological Laboratory, St Thomas's Hospital, London.) SINCE 1902 the secretin hypothesis of Bayliss and Starling(l) for the secretion of
More informationEFFECT OF SECRETIN AND CHOLECYSTOKININ ON GASTRIC EMPTYING AND GASTRIC SECRETION IN MAN
GA8TRONTROLOGY Copyright 197 by The Williams & Wilkins Co. Vol. 58, No.6 Fdnted in U.S.A. FFCT OF SCRTIN AND CHOLCYSTOKININ ON GASTRIC MPTYING AND GASTRIC SCRTION IN MAN W. Y. CHY, M.D., S. HITANANT, M.D.,
More information(Received 6 August 1979)
J. Phyoiol. (1980), 303, pp. 33-41 33 With 2 text-figurew Printed in Great Britain PARALLEL SECRETION OF ENZYMES BY THE RABBIT PANCREAS BY E. L. GILLILAND* AND G. GLAZER From the Academic Surgical Unit,
More informationKinin forming and destroying activities in human bile and mucous membranes of the biliary tract
Br. J. Pharmac. (1969), 37, 172-177. Kinin forming and destroying activities in human bile and mucous membranes of the biliary tract H. M. NIELSEN Surgical Department L, Aarhus Municipal Hospital, University
More informationhr) and a rapid single injection of
J. Phyasol. (1976), 260, pp. 629-645 629 With 6 text-figurem Printed in Great Britain PROGRESSIVE ENHANCEMENT IN THE SECRETORY FUNCTIONS OF THE DIGESTIVE SYSTEM OF THE RAT IN THE COURSE OF COLD ACCLIMATION
More informationFor more information about how to cite these materials visit
Author: John Williams, M.D., Ph.D., 2009 License: Unless otherwise noted, this material is made available under the terms of the Creative Commons Attribution Non-commercial Share Alike 3.0 License: http://creativecommons.org/licenses/by-nc-sa/3.0/
More informationEFFECT OF HORMONES ON PANCREATIC MACROMOLECULAR TRANSPORT
GASTROENTEROLOGY 68: 1536-1542, 1975 Copyright 1975 by The Williams & Wilkins Co. Vol. 68, No.6 Printed in U.S.A. EFFECT OF HORMONES ON PANCREATIC MACROMOLECULAR TRANSPORT MANJIT SiNGH, M.D., F.R.C.P.
More informationDiazepam-binding inhibitor mediates feedback regulation of pancreatic secretion and postprandial release of cholecystokinin
Diazepam-binding inhibitor mediates feedback regulation of pancreatic secretion and postprandial release of cholecystokinin Ying Li, Yibai Hao, and Chung Owyang Gastroenterology Research Unit, Department
More informationThe physiology of gastrointestinal system 3.
The physiology of gastrointestinal system 3. Stomach, pancreas, bile Dr. Gabriella Kékesi The mechanism and regulation of gastric juice secretion (Lo.) 64. Secretory cells in stomach Composition and role
More informationNIH Public Access Author Manuscript Res Commun Chem Pathol Pharmacol. Author manuscript; available in PMC 2010 October 18.
NIH Public Access Author Manuscript Published in final edited form as: Res Commun Chem Pathol Pharmacol. 1986 July ; 53(1): 137 140. EFFECT OF BILE ON CYCLOSPORINE ABSORPTION IN DOGS Raman Venkataramanan
More informationhigher bicarbonate and protein outputs than those induced by VIP or
J. Phyeiol. (1976), 255, pp. 497-509 497 With 9 text-ftgureg Printed in Great Britain COMPARSON OF VASOACTV NTSTNAL PPTD AND SCRTN N STMULATON OF PANCRATC SCRTON BY S. J. KONTURK, ANNA PUCHR AND TADUSZ
More informationPhysiology 12. Overview. The Gastrointestinal Tract. Germann Ch 19
Physiology 12 The Gastrointestinal Tract Germann Ch 19 Overview 1 Basic functions of the GI tract Digestion Secretion Absorption Motility Basic functions of the GI tract Digestion: : Dissolving and breaking
More informationJapan. J. Pharmacol. 50, (1989) 327. Effects of Central Nervous System-Acting Drugs on Urinary Bladder Contraction in Unanesthetized Rats
Japan. J. Pharmacol. 50, 327-332 (1989) 327 Effects of Central Nervous System-Acting Drugs on Urinary Bladder Contraction in Unanesthetized Rats Hitoshi KONTANI, Mikiko NAKAGAWA and Takeshi SAKAI Department
More informationINHIBITION OF GASTRIC EMPTYING IS A PHYSIOLOGICAL ACTION OF CHOLECYSTOKININ
GASTROENTEROLOGY68:1211-1217, 1975 Copyright 1975 by The Williams & Wilkins Co. Vol. 68, No. 5, Part 1 Printed in U.S.A. NHBTON OF GASTRC EMPTYNG S A PHYSOLOGCAL ACTON OF CHOLECYSTOKNN HALE T. DEBAS, M.D.,
More informationVolpenhein [1964] found fat equivalent to approximately 150 mg. oleic acid
Quart. J. exp. Physiol. (1967) 52, 305-312 THE SOURCE OF ENDOGENOUS LIPID IN THE THORACIC DUCT LYMPH OF FASTING RATS. By B. K. SHRIVASTAVA,* T. G. REDGRAVE t and W. J. SIMMONDS. From the Department of
More informationdiabetes mellitus and chronic pancreatitis
Gut, 1966, 7, 277 Exocrine and endocrine pancreatic function in diabetes mellitus and chronic pancreatitis N. PETERS1, A. P. DCK, C. N. HALES, D. H. ORRELL, AND MARTN SARNER1 From Addenbrooke's Hospital
More informationStation 1. Identify (= name) the spaces or structures labeled 1 9.
Station 1. Identify (= name) the spaces or structures labeled 1 9. 1 9 8 2 7 3 4 5 6 Station 2. Identify/name the parts or structures labeled 10 20. 10. Is this the right or left lung? 15 13 14 16 11 12
More informationUniversity of Buea. Faculty of Health Sciences. Programme in Medicine
Faculty of Health Sciences University of Buea Wednesday, 28 th January 2009 Time: 8 00-10 00 Programme in Medicine MED 303 (Gastrointestinal Physiology) EXAMS (2008-2009) Identify the letter of the choice
More informationCauses of pancreatic insufficiency. Eugen Dumitru
Causes of pancreatic insufficiency Eugen Dumitru Pancreatic Exocrine Insufficiency (PEI) 1. The Concept 2. The Causes 3. The Consequences Pancreatic Exocrine Insufficiency (PEI) 1. The Concept 2. The Causes
More informationSection Coordinator: Jerome W. Breslin, PhD, Assistant Professor of Physiology, MEB 7208, ,
IDP Biological Systems Gastrointestinal System Section Coordinator: Jerome W. Breslin, PhD, Assistant Professor of Physiology, MEB 7208, 504-568-2669, jbresl@lsuhsc.edu Overall Learning Objectives 1. Characterize
More informationACID-BASE COMPOSITION OF PANCREATIC JUICE AND BILE.
ACID-BASE COMPOSITION OF PANCREATIC JUICE AND BILE. BY JAMES L. GAMBLE, M.D., AND MONROE A. McIVER, M.D. WI~r ~a~ ASSlSTANC~ OF PAULINE MARSII AND MAURICE M. TOL~.N. (From the Departments of Pediatrics
More informationOPERATIVE TREATMENT OF ULCER DISEASE
Página 1 de 8 Copyright 2001 Lippincott Williams & Wilkins Greenfield, Lazar J., Mulholland, Michael W., Oldham, Keith T., Zelenock, Gerald B., Lillemoe, Keith D. Surgery: Scientific Principles & Practice,
More informationDigestive System. Digestive System. Digestion is the process of reducing food to small molecules that can be absorbed into the body.
Digestive System Digestion is the process of reducing food to small molecules that can be absorbed into the body. 2 Types of Digestion Mechanical digestion physical breakdown of food into small particles
More informationDURING the absorption of a fatty meal the lipid content of intestinal and. from the intestine to the plasma in the chylomicra as triglycerides [Yoffey
FATTY ACID TRANSPORT IN TORACIC DUCT, EPATIC AND INTESTINAL LYMP DURING FASTING AND AFTER FEEDING GLUCOSE. By R. V. COXON and D. S. ROBINSON.* From the University Laboratory of Physiology and the Sir William
More informationThe Small Intestine. The pyloric sphincter at the bottom of the stomach opens, squirting small amounts of food into your small intestine.
The Small Intestine The pyloric sphincter at the bottom of the stomach opens, squirting small amounts of food into your small intestine. approximately six metres (the longest section of your digestive
More informationIncludes mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, anus. Salivary glands, liver, gallbladder, pancreas
Chapter 14 The Digestive System and Nutrition Digestive System Brings Nutrients Into the Body The digestive system includes Gastrointestinal (GI) tract (hollow tube) Lumen: space within this tube Includes
More informationTHE ELIMINATION OF ADMINISTERED ZINC IN PANCREATIC JUICE, DUODENAL JUICE, AND BILE OF THE DOG AS MEASURED BY ITS RADIOACTIVE ISOTOPE (Zn~) *
THE ELIMINATION OF ADMINISTERED ZINC IN PANCREATIC JUICE, DUODENAL JUICE, AND BILE OF THE DOG AS MEASURED BY ITS RADIOACTIVE ISOTOPE (Zn~) * BY M. LAURENCE MONTGOMERY, M.D., G. E. SHELINE, PH.D., I. L.
More informationPREVIOUS work has shown that ingestion
192 B. C. DILWORTH, C. D. SCHULTZ AND E. J. DAY Summit, Pennsylvania, for their cooperative efforts and grant-in-aid in support of this work. REFERENCES Dilworth, B. C, C. D. Schultz and E. J. Day, 1970.
More informationThe role of thoracic duct lymph in gastrin transport
Gut, 1973, 14, 30-34 The role of thoracic duct lymph in gastrin transport and gastric secretion' B. GUY CLENDINNEN2, DAVID D. REEDER, AND JAMES C. THOMPSON From the Department of Surgery, The University
More informationMECHANISM BY WHICH FAT IN THE UPPER SMALL INTESTINE INHIBITS GASTRIC ACID
GASTROENTEROLOGY Copyright 1969 by The Williams & Wilkins Co. Vol. 56, No.3 Printea in U.S.A. MECHANISM BY WHICH FAT IN THE UPPER SMALL INTESTINE INHIBITS GASTRIC ACID H. T. DEBAS, M.D., B. S. BEDI, M.B.,
More informationON GASTRIC SECRETION IN DOGS
Gut, 960,, 345. THE EFFECT OF AN ADRENAL INHIBITOR (SU 4885) ON GASTRIC SECRETION IN DOGS BY J. W. McINTOSH, N. ANDERSON, H. L. DUTHIE, and A. P. M. FORREST From the University Department of Surgery, Western
More informationThe electrical and motor actions of gastrointestinal hormones on the duodenum in man
Gut, 1973, 14, 689-696 The electrical and motor actions of gastrointestinal hormones on the duodenum in man W. E. WATERFALL, H. L. DUTHIE, AND B. H. BROWN From the Departments of Surgery and Medical Physics,
More informationCitation for published version (APA): Minich, D. M. (1999). Essential fatty acid absorption and metabolism Groningen: s.n.
University of Groningen Essential fatty acid absorption and metabolism Minich, Deanna Marie IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite from
More informationSoft palate elevates, closing off the nasopharynx. Hard palate Tongue Bolus Epiglottis. Glottis Larynx moves up and forward.
The Cephalic Phase Chemical and mechanical digestion begins in the mouth Saliva is an exocrine secretion Salivary secretion is under autonomic control Softens and lubricates food Chemical digestion: salivary
More informationDigestive Lecture Test Questions Set 4
Digestive Lecture Test Questions Set 4 1. Which of the following is not associated directly with the small intestine: a. villi b. circular folds c. microvilli d. haustrae e. secretin 2. The largest (longest)
More informationThe effect of metoclopramide on gastroduodenal
Gut, 1971, 12, 158-163 The effect of metoclopramide on gastroduodenal and gallbladder contractions A. G. JOHNSON From the Department of Surgery, Charing Cross Hospital Medical School, London SUMMARY The
More informationABDOMEN - GI. Duodenum
TALA SALEH ABDOMEN - GI Duodenum - Notice the shape of the duodenum, it looks like capital G shape tube which extends from the pyloroduodenal junction to the duodenojejunal junction. - It is 10 inches
More information(Received 8th October 1973)
THE INFLUENCE OF A CANNULA IN THE RABBIT OVIDUCT II. EFFECT ON EMBRYO SURVIVAL M. H. SLOAN, S. L. COLEY and A. D. JOHNSON Animal Science Department, Livestock-Poultry Building, University of Georgia, Athens,
More informationPEPSIN SECRETION DURING DAMAGE BY ETHANOL AND SALICYLIC ACID
GASTROENTEROLOGY Copyriht 1972 by The Williams & Wilkins Co. Vol. 62. No. 3 Printed in U.S. A. PEPSIN SECRETION DURING DAMAGE BY ETHANOL AND SALICYLIC ACID LEONARD R. JOHNSON, PH.D. Department of Physiology
More informationPhysiology Unit 4 DIGESTIVE PHYSIOLOGY
Physiology Unit 4 DIGESTIVE PHYSIOLOGY In Physiology Today Functions Motility Ingestion Mastication Deglutition Peristalsis Secretion 7 liters/day! Exocrine/endocrine Digestion Absorption Digestion of
More informationOverview. Physiology 1. The Gastrointestinal Tract. Guyton section XI
Overview Physiology 1 The Gastrointestinal Tract Guyton section XI Basic functions of the GI tract Digestion Secretion Absorption Motility Basic functions of the GI tract Digestion: : Dissolving and breaking
More informationEnteral and parenteral nutrition in GI failure and short bowel syndrome
Enteral and parenteral nutrition in GI failure and short bowel syndrome Alastair Forbes University College London Intestinal failure Inadequate functional intestine to allow health to be maintained by
More informationLab #12: Digestive Physiology
Background In order for the nutrients in food to be absorbed, they must first be broken down into particles that are small enough to be transported through carrier proteins into the epithelial cells that
More informationEFFECT OF CARBENOXOLONE ON THE GASTRIC MUCOSAL BARRIER IN MAN AFTER ADMINISTRATION OF TAUROCHOLIC ACID
GASTROENTEROLOGY 64: 1101-1105, 1973 Copyright 1973 by The Williams & Wilkins Co. Vol. 64 No.6 Printed in U.S.A. EFFECT OF CARBENOXOLONE ON THE GASTRIC MUCOSAL BARRIER IN MAN AFTER ADMINISTRATION OF TAUROCHOLIC
More information6.2.1 Exocrine pancreatic insufficiency
6.2.1 Exocrine pancreatic insufficiency Authors: Jean Louis Frossard, Alain Sauty 1. INTRODUCTION Exocrine pancreatic insufficiency is a biological and clinical condition that is characterized by a progressive
More information3, 4), although its concentration in mixed gastric
THE VALUE OF THE ACID TEST MEAL: A STUDY OF NORMAL PERSONS AND OF PERSONS WITH DUODENAL ULCER By C. STUART WELCH AND MANDRED W. COMFORT (From The Mayo Foundation and the Division of Medicine, The Mayo
More information2. SECRETIONS OF THE DIGESTIVE TRACT
2. SECRETIONS OF THE DIGESTIVE TRACT SECRETORY GLANDS AND CELLS The alimentary tract produces a large variety and quantity of substances which contribute to digesting the food, and protecting and regulating
More information2. SECRETIONS OF THE DIGESTIVE TRACT
2. SECRETIONS OF THE DIGESTIVE TRACT SECRETORY GLANDS AND CELLS The alimentary tract produces a large variety and quantity of substances which contribute to digesting the food, and protecting and regulating
More informationThough considerable information is now available on the secretory
212 J. Phy8iol. (1962), 162, pp. 212-224 With 1 pkae and 11 teat-figuree Printed in Great Britain BILE SECRETION IN THE SHEEP BY F. A. HARRISON* From the Agricultural Re8earch Council Institute of Animal
More informationTreatment for early pancreatic cancer
13 11 20 Information and support Treatment for pancreatic cancer Contents Treatment for early pancreatic cancer Surgery What to expect after surgery Neoadjuvant and adjuvant therapies Treatment for advanced
More informationGastric, intestinal and colonic absorption of metoprolol in
Br. J. clin. Pharmac. (1985), 19, 85S-89S Gastric, intestinal and colonic absorption of metoprolol in the rat J. DOMENECH', M. ALBA', J. M. MORERA', R. OBACH' & J. M. PLA DELFINA2 'Department of Pharmaceutics,
More information(From the Physiological Laboratories of University College, London and Cambridge University.) extracts2, etc.). dilation of the vessels.
THE OXYGEN EXCHANGE OF THE PANCREAS. BY J. BARCROFT AND E. H. STARLING. (From the Physiological Laboratories of University College, London and Cambridge University.) THE interest of the investigations,
More informationAction of drugs on denervated myoepithelial cells of salivary glands
Br. J. Pharmac. (1973), 48, 73-79. Action of drugs on denervated myoepithelial cells of salivary glands N. EMMELIN AND A. THULIN Institute of Physiology, University of Lund, Sweden Summary 1. The pressure
More informationAll organisms must obtain and process essential nutrients (food) *** Exception: Venus Fly Traps undergo photosynthesis but needs source of nitrogen
All organisms must obtain and process essential nutrients (food) AUTOTROPHS self feeder makes their own food eg. Plants do not require a digestive tract *** Exception: Venus Fly Traps undergo photosynthesis
More informationDIGESTIVE. CHAPTER 17 Lecture: Part 1 Part 2 BIO 212: ANATOMY & PHYSIOLOGY II
BIO 212: ANATOMY & PHYSIOLOGY II CHAPTER 17 Lecture: DIGESTIVE Part 1 Part 2 Dr. Lawrence G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill. SMALL INTESTINE DUODENUM > JEJUNUM
More informationAli Yaghi. Yaseen Fatayer. M.Khatatbeh
6 Ali Yaghi Yaseen Fatayer M.Khatatbeh P a g e 1 pancreatic secretions note: The pancreas has endocrine (secretions are released toward the blood) and exocrine(secretions are released through the canalicular
More informationEFFECTS OF NICOTINE ON GASTROINTESTINAL SECRETIONS
GASTRONTROLOGY Copyright @ 1971 by The Williams & Wilkins Co. Vol. 60, No.6 Printed in U. S. A. FFCTS OF NCOTN ON GASTRONTSTNAL SCRTONS STANSLAW J. KONTURK, M.D., TRAVS. SOLOMON, W. GORG MCCRGHT, LONARD
More informationExocrine Pancreatic Function after Upper Abdominal Surgery
Tohoku J. exp. Med., 1975, 115, 307-317 Exocrine Pancreatic Function after Upper Abdominal Surgery YASUO SUDA,* MITSUYASU SHIRASO õ and Tosnio SATO First Department of Surgery, Tohoku University School
More informationPHYSIOLOGY OF THE DIGESTIVE SYSTEM
Student Name CHAPTER 26 PHYSIOLOGY OF THE DIGESTIVE SYSTEM D igestion is the process of breaking down complex nutrients into simpler units suitable for absorption. It involves two major processes: mechanical
More informationParthasarathy and Phillipson, 1953] and Dobson [1959] showed that the. only necessitate active transport if the potential difference between the
Quart. J. exp. Physiol. (1967) 52, 382-391 THE EFFECTS OF POTASSIUM SUPPLEMENTS UPON THE ABSORP- TION OF POTASSIUM AND SODIUM FROM THE SHEEP RUMEN By D. SCOTT. From the Physiology Department, Rowett Research
More informationGastrointestinal Physiology. Secretion
Gastrointestinal Physiology Secretion Fig. 24.26 Functions Provided by secretory glands which serve 2 functions: - Digestive enzymes. - Lubrication and protection of the mucosa. Types of secretory structures
More informations. J. RUNE, M.D., AND F. W. HENRIKSEN, M.D.
GASTROENTEROLOGY Copyright 1969 by The Williams & Wilkins Co. Vol. 56, No.4 Printed in U.S.A. CARBON DOXDE TENSONS N TlE PROXMAL PART OF THE CANNE GASTRONTESTNAL TRACT s. J. RUNE, M.D., AND F. W. HENRKSEN,
More informationCh41 Animal Nutrition
Ch41 Animal Nutrition Digestive system Purpose = break down food into smaller nutrients to be used in the body for energy and raw materials for biosynthesis Overview of food processing Ingestion: act of
More informationPROGRESS IN GASTROENTEROLOGY
GASTROENTEROLOGY Copyright 1971 by 'The Williams & Wilkins Co. Vol. 60, No.1 Printed in U. S. A. PROGRESS IN GASTROENTEROLOGY INTESTINAL HORMONES AS INHIBITORS OF GASTRIC SECRETION LEONARD R. JOHNSON,
More information