Ali Keshavarzian MD Rush University Medical Center, Chicago, IL
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1 Ali Keshavarzian MD Rush University Medical Center, Chicago, IL
2 Ulcerative colitis Crohn s disease
3 Optimize Quality of Life Induce remission [treat flare up] Maintain remission [avoid flare up] Prevent & treat complications
4 % Patients Not Failing Trial AZA 2.5 mg/kg/d (n=33) Placebo (n=30) P= Duration of Trial (months) * Remission induced by prednisolone tapered over 12 wk Candy S, et al. Gut. 1995;37:674.
5 Impact of environmental factors on IBD pathogenesis. Inflammatory bowel disease: the role of environmental factors Autoimmunity Reviews, Volume 3, Issue 5, 2004,
6
7
8 Impact of Sleep Disturbance in Inflammatory Bowel Disease. Journal of Gastroenterology and Hepatology, Volume 22, Issue 11, 2006
9 Impact of Sleep Disturbance in Inflammatory Bowel Disease. Journal of Gastroenterology and Hepatology, Volume 22, Issue 11, 2006
10 Sleep deprivation worsens inflammation and delays recovery in a mouse model of colitis Sleep Medicine, Volume 10, Issue 6, 2009
11 Sleep disturbances and inflammatory bowel disease: a potential trigger for disease flare? Expert Rev Clin Immunol. Volume 7, Issue 1, 2011
12
13 Rush University Ali Keshavarzian Christopher Forsyth Ece Mutlu Garth Swanson Maliha Shaikh Phillip Engen Northwestern University Fred Turek Martha Vitaterna Keith Summa Peng Jiang University of Illinois Stefan Green National Institute on Alcohol Abuse and Alcoholism AA020216: Brain-Gut Interactions in Alcohol-Induced Gut Leakiness AA023417: Role of Alcohol and Circadian Disruption in Inflammation and Colon Cancer AA019966: Circadian Desynchrony in Alcohol Induced Gut Leakiness
14 Monitoring Circadian Rhythms: Behavior
15 Preuss et al. Am. J. Physiol : R2034-R2040.
16 Endogenous melatonin profiles in asymptomatic inflammatory bowel disease
17 Endogenous melatonin profiles in asymptomatic inflammatory bowel disease Scandinavian Journal of Gastroenterology, Volume 45, Issue 6, 2010
18 No Biologic Use Biologic Use 9:00 PM 12:00 AM 3:00 AM 3:14 9:00 PM 12:00 AM 3:00 AM 3:55 6:00 PM 6:00 AM 6:00 PM 6:00 AM 3:00 PM 12:00 PM 9:00 AM 3:00 PM 12:00 PM 9:00 AM = 2 observations ** **Watson Williams F test P < 0.05 Keshavarzian et al. DDW, 2016
19 Consistent Inconsistent 9:00 PM 12:00 AM 3:00 AM 18:44 19:21 9:00 PM 12:00 AM 3:00 AM 6:00 PM 6:00 AM 6:00 PM 6:00 AM 3:00 PM 12:00 PM 9:00 AM 3:00 PM 12:00 PM 9:00 AM = 9 observations = 7 observations SIBDQ ** **Watson Williams F test P < 0.01 Keshavarzian et al. DDW, 2016
20 How does disrupted circadian rhythms worsen IBD?
21 Host Immune Response 1. Altered genetics making it ready for an immune system 2. Overactive T cells 3. Altered cytokine balance towards infalmmation 4. Lack of simple defense such as innate immune system Intestinal Milieu 1. Altered bacterial contents 2. Altered diet contents Intestinal Barrier - Primary defects - of mucous? - Defects in tissue repair
22 The Treatment-Naive Microbiome in New-Onset Crohn s Disease Cell Host & Microbe, Volume 15, Issue 3, 2014,
23 Changes in Microbiota Composition Increased intestinal permeability Promote pro-inflammatory immune response Promotes mucosal and systemic inflammation
24
25 Intestinal Barrier Function: Intestinal Permeability Administer: Sucralose, Sucrose, Lactulose, Mannitol Measure: Urinary sugar content
26
27 LBP (ng/ml) LBP (ng/ml) (A) Lipopolysaccharide Binding Protein at Baseline (B) Day Shift Night Shift * * 0 Day Shift Night Shift :00 06:00 12:00 18:00 0:00 Time Serum LBP in day shift and night shift workers (n=11). (A) Subjects with evidence of circadian rhythm disruption (i.e., night shift workers) have higher plasma LBP. (B) Cosinor analysis reveals significantly altered pattern of plasma LBP in night shift workers over a 24h period compared to day shift workers; day versus night shift workers mesor: v 13136, respectively (p=0.04). These results are indicative of increased endotoxemia and intestinal barrier dysfunction in subjects with circadian rhythm disruption.
28 Phillip Engen, BS Research Technician 2 Rush University Ankur Naqib PhD Student Research Assistant University of Illinois at Chicago Stefan J. Green, PhD Director DNA Services Facility University of Illinois at Chicago
29 Environmental CRD Alters the Intestinal Microbiota Under Challenging Conditions Family level Genus level Voigt et al, PLoS One, 2013
30 Average Abundance Day Night Day Night Day Night Day Night PCA PC2: 25.13% Variance? 6? 4? Peptostreptococcaceae (A) (B) (C) (D) Turicibacteraceae Clostridiaceae Pseudomonadaceae day night (A) Peptostreptococcaceae (C) Clostridiaceae (B) Turicibacteraceae (D) Pseudomonadaceae P C A P C 2 : % v a r i a n c e Day Shift Workers Night Shift Workers?10?5 0 5 PCA PC1: 53.84% ar iance v PCA PC1: 53.8% Variance Fecal microbiota analysis in day shift and night shift workers (n=3). Genomic DNA was extracted from feces, and profiling was performed using 16S rrna gene amplicon sequencing. Analysis reveal that bacteria from the families Peptostreptococcaceae, Turicibacteraceae, and Clostridiaceae are more abundant in night shift workers compared to day shift workers. These data suggest that circadian rhythm disruption is associated with intestinal dysbiosis, particularly an increase in pro-inflammatory bacteria.
31 Butyrate / Total SCFA Production Ratio Butyrate to SCFA (A) p<0.05 Day Shift Worker Night Shift Worker * (B) Day Shift Night Shift 0:00 06:00 12:00 18:00 0:00 Time Butyrate production as a ratio of total SCFA production (n=4). (A) Night shift workers with evidence of circadian rhythm disruption have significantly less plasma butyrate as a ratio compared to total SCFA production. (B) Cosinor analysis reveals significantly altered levels of butyrate to total SCFA production over a 24 h period; day versus night shift workers amplitude (p<0.05). These data suggest that the amount of butyrate produced as a proportion of total SCFA production is altered in subjects with circadian rhythm disruption which may contribute to altered intestinal barrier integrity and immune function. *
32 Plasma IL6 (pg/m) (A) 2.5 (B) * Day Shift Night Shift Day Shift Night Shift Plasma IL-6 in day shift and night shift workers (n=11). (A) Night shift workers have elevated levels of IL-6. (B) Cosine analysis demonstrates that night shift workers have significantly altered circadian pattern of IL-6; day versus night shift workers mesor: 1.73 v 2.20, respectively (p<0.02). These data suggest that circadian rhythm disruption promotes systemic inflammation.
33 What Factors Disrupt the Circadian Clock? Buttgereit et al, Nature Reviews Rheumatology 11: , 2015
34
35 Consequences of Circadian Disruption We propose that circadian rhythm disruption promotes inflammation via effects on the intestine Disrupted intestinal barrier integrity Intestinal microbiota dysbiosis Immune consequences Circadian misalignment could promote inflammation in patients with IBD and trigger IBD flare up Circadian misalignment [disrupted sleep/wake cycle; abnormal eating pattern] could worsen IBD course
Socioeconomic State & Intestinal Microbiota. Ali Keshavarzian, MD Rush University Medical Center Chicago, IL
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