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An Essential Role For Monocyte Chemoattractant Protein-1 In Alcoholic Liver Injury: Regulation Of Proinflammatory Cytokines And Hepatic Steatosis In Mice, Pranoti Mandrekar, Aditya Ambade, Arlene Lim, Gyongyi Szabo, Donna Catalano 2012 University of Massachusetts Medical School

An Essential Role For Monocyte Chemoattractant Protein-1 In Alcoholic Liver Injury: Regulation Of Proinflammatory Cytokines And Hepatic Steatosis In Mice, Pranoti Mandrekar, Aditya Ambade, Arlene Lim, Gyongyi Szabo, Donna Catalano

Gyongyi Szabo

The importance of chemokines in alcoholic liver injury has been implicated. The role of the chemokine, monocyte chemoattractant protein-1 (MCP-1), elevated in patients with alcoholic liver disease is not yet understood. Here, we evaluated the pathophysiological significance of MCP-1 and its receptor, chemokine (C-C motif) receptor 2 (CCR2), in alcoholic liver injury. The Leiber-DeCarli diet containing alcohol or isocaloric control diets were fed to wild-type (WT) and MCP-1-deficient knockout (KO) mice for 6 weeks. In vivo and in vitro assays were performed to study the role of MCP-1 in alcoholic liver injury. MCP-1 was increased in Kupffer cells (KCs) as ...


Microrna Silencing And The Development Of Novel Therapies For Liver Disease, Gyongyi Szabo, Peter Sarnow, Shashi Bala 2012 University of Massachusetts Medical School

Microrna Silencing And The Development Of Novel Therapies For Liver Disease, Gyongyi Szabo, Peter Sarnow, Shashi Bala

Gyongyi Szabo

In recent years microRNAs have emerged as crucial small non-coding RNA molecules with diverse roles in various diseases including diseases of the liver. In this review, we highlight the latest advances in the field of microRNA biology and their potential as emerging therapeutic targets in liver disease. Elsevier B.V. All rights reserved.


Reduction In Hepatic Inflammation Is Associated With Less Fibrosis Progression And Fewer Clinical Outcomes In Advanced Hepatitis C, Chihiro Morishima, Mitchell Shiffman, Jules Dienstag, Karen Lindsay, Gyongyi Szabo, Gregory Everson, Anna Lok, Adrian Di Bisceglie, Marc Ghany, Deepa Naishadham, Timothy Morgan, Elizabeth Wright 2012 University of Washington

Reduction In Hepatic Inflammation Is Associated With Less Fibrosis Progression And Fewer Clinical Outcomes In Advanced Hepatitis C, Chihiro Morishima, Mitchell Shiffman, Jules Dienstag, Karen Lindsay, Gyongyi Szabo, Gregory Everson, Anna Lok, Adrian Di Bisceglie, Marc Ghany, Deepa Naishadham, Timothy Morgan, Elizabeth Wright

Gyongyi Szabo

OBJECTIVES:During the Hepatitis C Antiviral Long-term Treatment against Cirrhosis Trial, 3.5 years of maintenance peginterferon-alfa-2a therapy did not affect liver fibrosis progression or clinical outcomes among 1,050 previous interferon nonresponders with advanced fibrosis or cirrhosis. We investigated whether reduced hepatic inflammation was associated with clinical benefit in 834 patients with a baseline and follow-up biopsy 1.5 years after randomization to peginterferon or observation. METHODS:Relationships between change in hepatic inflammation (Ishak hepatic activity index, (HAI)) and serum alanine aminotransferase level, fibrosis progression and clinical outcomes after randomization, and hepatitis C virus (HCV) RNA decline before and ...


Human Monoclonal Antibody Hcv1 Effectively Prevents And Treats Hcv Infection In Chimpanzees, Trevor J. Morin, Teresa J. Broering, Brett A. Leav, Barbara M. Blair, Kirk J. Rowley, Elisabeth N. Boucher, Yang Wang, Peter S. Cheslock, Michael Knauber, David B. Olsen, Steve W. Ludmerer, Gyongyi Szabo, Robert W. Finberg, Robert H. Purcell, Robert E. Lanford, Donna M. Ambrosino, Deborah C. Molrine, Gregory J. Babcock 2012 University of Massachusetts Medical School

Human Monoclonal Antibody Hcv1 Effectively Prevents And Treats Hcv Infection In Chimpanzees, Trevor J. Morin, Teresa J. Broering, Brett A. Leav, Barbara M. Blair, Kirk J. Rowley, Elisabeth N. Boucher, Yang Wang, Peter S. Cheslock, Michael Knauber, David B. Olsen, Steve W. Ludmerer, Gyongyi Szabo, Robert W. Finberg, Robert H. Purcell, Robert E. Lanford, Donna M. Ambrosino, Deborah C. Molrine, Gregory J. Babcock

Gyongyi Szabo

Hepatitis C virus (HCV) infection is a leading cause of liver transplantation and there is an urgent need to develop therapies to reduce rates of HCV infection of transplanted livers. Approved therapeutics for HCV are poorly tolerated and are of limited efficacy in this patient population. Human monoclonal antibody HCV1 recognizes a highly-conserved linear epitope of the HCV E2 envelope glycoprotein (amino acids 412-423) and neutralizes a broad range of HCV genotypes. In a chimpanzee model, a single dose of 250 mg/kg HCV1 delivered 30 minutes prior to infusion with genotype 1a H77 HCV provided complete protection from HCV ...


Cd81/Cd9 Tetraspanins Aid Plasmacytoid Dendritic Cells In Recognition Of Hcv-Infected Cells And Induction Of Ifnalpha, Shuye Zhang, Karen Kodys, Gregory Babcock, Gyongyi Szabo 2012 University of Massachusetts Medical School

Cd81/Cd9 Tetraspanins Aid Plasmacytoid Dendritic Cells In Recognition Of Hcv-Infected Cells And Induction Of Ifnalpha, Shuye Zhang, Karen Kodys, Gregory Babcock, Gyongyi Szabo

Gyongyi Szabo

Recognition of hepatitis C virus (HCV)-infected hepatocyes and interferon (IFN) induction are critical in antiviral immune response. We hypothesized that cell-cell contact between plasmacytoid dendritic cells (pDCs) and HCV-infected cells was required for IFNalpha induction via involvement of cell surface molecules. Co-culture of human peripheral blood mononuclear cells (PBMCs) with genotype 1a full length HCV genomic replicon cells (FL) or genotype 2a JFH-1 virus infected hepatoma cells (JFH-1), not with uninfected hepatoma cells (Huh7.5), induced IFNalpha production. Depletion of pDCs from PBMCs attenuated IFNalpha release and purified pDCs produced high levels of IFNalpha after co-culture with FL replicons ...


Il-1 Receptor Antagonist Ameliorates Inflammasome-Dependent Alcoholic Steatohepatitis In Mice, Jan Petrasek, Shashi Bala, Timea Csak, Dora Lippai, Karen Kodys, Victoria Menashy, Matthew Barrieau, So-Yun Min, Evelyn A. Kurt-Jones, Gyongyi Szabo 2012 University of Massachusetts Medical School

Il-1 Receptor Antagonist Ameliorates Inflammasome-Dependent Alcoholic Steatohepatitis In Mice, Jan Petrasek, Shashi Bala, Timea Csak, Dora Lippai, Karen Kodys, Victoria Menashy, Matthew Barrieau, So-Yun Min, Evelyn A. Kurt-Jones, Gyongyi Szabo

Gyongyi Szabo

Alcoholic liver disease (ALD) is characterized by steatosis and upregulation of proinflammatory cytokines, including IL-1beta. IL-1beta, type I IL-1 receptor (IL-1R1), and IL-1 receptor antagonist (IL-1Ra) are all important regulators of the IL-1 signaling complex, which plays a role in inflammation. Furthermore, IL-1beta maturation is dependent on caspase-1 (Casp-1). Using IL-1Ra-treated mice as well as 3 mouse models deficient in regulators of IL-1beta activation (Casp-1 and ASC) or signaling (IL-1R1), we found that IL-1beta signaling is required for the development of alcohol-induced liver steatosis, inflammation, and injury. Increased IL-1beta was due to upregulation of Casp-1 activity and inflammasome activation. The ...


Induction Of Bcl-3 By Acute Binge Alcohol Results In Toll-Like Receptor 4/Lps Tolerance, Shashi Bala, Alexander Tang, Donna Catalano, Jan Petrasek, Odette Taha, Karen Kodys, Gyongyi Szabo 2012 University of Massachusetts Medical School

Induction Of Bcl-3 By Acute Binge Alcohol Results In Toll-Like Receptor 4/Lps Tolerance, Shashi Bala, Alexander Tang, Donna Catalano, Jan Petrasek, Odette Taha, Karen Kodys, Gyongyi Szabo

Gyongyi Szabo

Acute alcohol binge results in immunosuppression and impaired production of proinflammatory cytokines, including TNF-alpha. TNF-alpha production is induced by LPS, a TLR4 ligand, and is tightly regulated at various levels of the signaling cascade, including the NF-kappaB transcription factor. Here, we hypothesized that acute alcohol induces TLR4/LPS tolerance via Bcl-3, a nuclear protein and member of the NF-kappaB family. We found that acute alcohol pretreatment resulted in the same attenuating effect as LPS pretreatment on TLR4-induced TNF-alpha production in human monocytes and murine RAW 264.7 macrophages. Acute alcohol-induced Bcl-3 expression and IP studies revealed increased association of Bcl-3 ...


Novel Developmental Biology-Based Protocol Of Embryonic Stem Cell Differentiation To Morphologically Sound And Functional Yet Immature Hepatocytes, Terence Bukong, Tracie Lo, Gyongyi Szabo, Angela Dolganiuc 2012 University of Massachusetts Medical School

Novel Developmental Biology-Based Protocol Of Embryonic Stem Cell Differentiation To Morphologically Sound And Functional Yet Immature Hepatocytes, Terence Bukong, Tracie Lo, Gyongyi Szabo, Angela Dolganiuc

Gyongyi Szabo

BACKGROUND/AIMS: Liver diseases are common in the United States and often require liver transplantation; however, donated organs are limited and thus alternative sources for liver cells are in high demand. Embryonic stem cells (ESC) can provide a continuous and readily available source of liver cells. ESC differentiation to liver cells is yet to be fully understood and comprehensive differentiation protocols are yet to be defined. Here, we aimed to achieve human (h)ESC differentiation into mature hepatocytes using defined recombinant differentiation factors and metabolites. METHODS: Embryonic stem cell H1 line was sub-cultured on feeder layer. We induced hESCs into ...


Plasma Microrna Profiles Distinguish Lethal Injury In Acetaminophen Toxicity: A Research Study, Jeanine Ward, Shashi Bala, Jan Petrasek, Gyongyi Szabo 2012 University of Massachusetts Medical School

Plasma Microrna Profiles Distinguish Lethal Injury In Acetaminophen Toxicity: A Research Study, Jeanine Ward, Shashi Bala, Jan Petrasek, Gyongyi Szabo

Gyongyi Szabo

AIM: To investigate plasma microRNA (miRNA) profiles indicative of hepatotoxicity in the setting of lethal acetaminophen (APAP) toxicity in mice. METHODS: Using plasma from APAP poisoned mice, either lethally (500 mg/kg) or sublethally (150 mg/kg) dosed, we screened commercially available murine microRNA libraries (SABiosciences, Qiagen Sciences, MD) to evaluate for unique miRNA profiles between these two dosing parameters. RESULTS: We distinguished numerous, unique plasma miRNAs both up- and downregulated in lethally compared to sublethally dosed mice. Of note, many of the greatest up- and downregulated miRNAs, namely 574-5 p, 466 g, 466 f-3p, 375, 29 c, and 148 ...


Circulating Micrornas In Exosomes Indicate Hepatocyte Injury And Inflammation In Alcoholic, Drug-Induced, And Inflammatory Liver Diseases, Shashi Bala, Jan Petrasek, Shiv Mundkur, Donna Catalano, Ivan Levin, Jeanine Ward, Hawau Alao, Karen Kodys, Gyongyi Szabo 2012 University of Massachusetts Medical School

Circulating Micrornas In Exosomes Indicate Hepatocyte Injury And Inflammation In Alcoholic, Drug-Induced, And Inflammatory Liver Diseases, Shashi Bala, Jan Petrasek, Shiv Mundkur, Donna Catalano, Ivan Levin, Jeanine Ward, Hawau Alao, Karen Kodys, Gyongyi Szabo

Gyongyi Szabo

MicroRNAs are fine tuners of diverse biological responses and are expressed in various cell types of the liver. Here we hypothesized that circulating microRNAs (miRNAs) may serve as biomarkers of liver damage and inflammation. We studied miRNA-122, which is abundant in hepatocytes, and miR-155, -146a, and -125b, which regulate inflammation in immune cells in mouse models of alcoholic liver disease (ALD), drug (acetaminophen, APAP)-induced liver injury (DILI), and Toll-like receptor (TLR) 9+4 ligand-induced inflammatory cell-mediated liver damage. We found that serum/plasma miR-122 correlated with alanine aminotransferase (ALT) increases in the liver damage caused by alcohol, APAP, and ...


Sleep Disturbances And Hypnotic Medication Use In Relation To Risk Of Barrett’S Esophagus And Esophageal Adenocarcinoma, Anastasia Shnitser, MD, Abhik Roy, MD, Sidney Cohen, MD, Anthony J. DiMarino, MD 2012 Thomas Jefferson University

Sleep Disturbances And Hypnotic Medication Use In Relation To Risk Of Barrett’S Esophagus And Esophageal Adenocarcinoma, Anastasia Shnitser, Md, Abhik Roy, Md, Sidney Cohen, Md, Anthony J. Dimarino, Md

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND

The incidence of esophageal adenocarcinoma (EA) has increased more rapidly than any other cancer (with the exception of malignant melanoma) in the United States over the past 30 years. Gastroesophageal reflux disease (GERD) is the strongest risk factor for the development of Barrett’s esophagus, which in turn leads to the rise of most EA’s. In a large portion of persons with sleep disorders, perhaps as high as 30%, GERD is a major causal or contributing factor. It has been proposed that the use of hypnotics for the treatment of sleep disorders may exacerbate the damaging effects of ...


Variation Of Adenoma Prevalence By Age, Sex, Race, And Colon Location In A Large Population: Implications For Screening And Quality Programs, Douglas Corley, Christopher Jensen, Amy Marks, Wei Zhao, Jolanda de Boer, Theodore Levin, Chyke Doubeni, Bruce Fireman, Charles Quesenberry 2012 Kaiser Permanente

Variation Of Adenoma Prevalence By Age, Sex, Race, And Colon Location In A Large Population: Implications For Screening And Quality Programs, Douglas Corley, Christopher Jensen, Amy Marks, Wei Zhao, Jolanda De Boer, Theodore Levin, Chyke Doubeni, Bruce Fireman, Charles Quesenberry

Chyke A. Doubeni

BACKGROUND and AIMS: Reliable community-based colorectal adenoma prevalence estimates are needed to inform colonoscopy quality standards and to estimate patient colorectal cancer risks; however, minimal data exist from populations with large numbers of diverse patients and examiners. METHODS: We evaluated the prevalence of adenomas detected by sex, age, race/ethnicity, and colon location among 20,792 Kaiser Permanente Northern California members >/=50 years of age who received a screening colonoscopy exam (102 gastroenterologists, years 2006-2008). RESULTS: Prevalence of detected adenomas increased more rapidly with age in the proximal colon (adjusted odds ratio [OR], 2.39; 95% confidence interval [CI], 2 ...


Il-1 Receptor Antagonist Ameliorates Inflammasome-Dependent Alcoholic Steatohepatitis In Mice, Jan Petrasek, Shashi Bala, Timea Csak, Dora Lippai, Karen Kodys, Victoria Menashy, Matthew Barrieau, So-Yun Min, Evelyn A. Kurt-Jones, Gyongyi Szabo 2012 University of Massachusetts Medical School

Il-1 Receptor Antagonist Ameliorates Inflammasome-Dependent Alcoholic Steatohepatitis In Mice, Jan Petrasek, Shashi Bala, Timea Csak, Dora Lippai, Karen Kodys, Victoria Menashy, Matthew Barrieau, So-Yun Min, Evelyn A. Kurt-Jones, Gyongyi Szabo

Gastroenterology Publications and Presentations

Alcoholic liver disease (ALD) is characterized by steatosis and upregulation of proinflammatory cytokines, including IL-1beta. IL-1beta, type I IL-1 receptor (IL-1R1), and IL-1 receptor antagonist (IL-1Ra) are all important regulators of the IL-1 signaling complex, which plays a role in inflammation. Furthermore, IL-1beta maturation is dependent on caspase-1 (Casp-1). Using IL-1Ra-treated mice as well as 3 mouse models deficient in regulators of IL-1beta activation (Casp-1 and ASC) or signaling (IL-1R1), we found that IL-1beta signaling is required for the development of alcohol-induced liver steatosis, inflammation, and injury. Increased IL-1beta was due to upregulation of Casp-1 activity and inflammasome activation. The ...


Experience Of Caregivers With The Survivors Of Hepatitis C, Noureen Shehzad Jiwani, Raisa B. Gul, Rubina Sultan 2012 Aga Khan University

Experience Of Caregivers With The Survivors Of Hepatitis C, Noureen Shehzad Jiwani, Raisa B. Gul, Rubina Sultan

School of Nursing & Midwifery

Objectives: To assess and describe the experiences of those caring for hepatitis C patients in Karachi, Pakistan.

Methods: Using a qualitative approach, the study adopted a descriptive exploratory design for which 8 caregirers were selected through snowball sampling technique from different parts of Karachi. Data was collected between May and July 2010 through semi-structured interviews from the caregivers. The interviews were recorded on tape and were transcribed verbatim. The data was manually analysed for extracting themes and categories.

Results: The analyses of data led to one theme - \'deadly, dangerous, and devastating. Two associated categories could also be noted: \'perceptions and ...


Predictive Value Of Alpha-Fetoprotein In The Long-Term Risk Of Developing Hepatocellular Carcinoma In Patients With Hepatitis B Virus Infection--Results From A Clinic-Based Longitudinal Cohort., Hie-Won Hann, Xiaoying Fu, Ronald E. Myers, Richard Hann, Shaogui Wan, Su Hee Kim, Natalie Au, Jinliang Xing, Hushan Yang 2012 Thomas Jefferson University, Jefferson Medical College

Predictive Value Of Alpha-Fetoprotein In The Long-Term Risk Of Developing Hepatocellular Carcinoma In Patients With Hepatitis B Virus Infection--Results From A Clinic-Based Longitudinal Cohort., Hie-Won Hann, Xiaoying Fu, Ronald E. Myers, Richard Hann, Shaogui Wan, Su Hee Kim, Natalie Au, Jinliang Xing, Hushan Yang

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: Although serum level of alpha-fetoprotein (AFP) has long been used to complement imaging tests in the screening and diagnosis of hepatocellular carcinoma (HCC), whether it can be used as a predictive marker of long-term risk for developing HCC in patients with hepatitis B virus (HBV) has not been extensively evaluated and thus remains controversial.

METHODS: We retrospectively conducted a clinic-based longitudinal cohort study including 617 Korean American patients with HBV who had been followed for up to 22 years (median follow-up time, 6.2 years) to evaluate the association between baseline serum AFP level and the long-term risk of ...


Human Monoclonal Antibody Hcv1 Effectively Prevents And Treats Hcv Infection In Chimpanzees, Trevor J. Morin, Teresa J. Broering, Brett A. Leav, Barbara M. Blair, Kirk J. Rowley, Elisabeth N. Boucher, Yang Wang, Peter S. Cheslock, Michael Knauber, David B. Olsen, Steve W. Ludmerer, Gyongyi Szabo, Robert W. Finberg, Robert H. Purcell, Robert E. Lanford, Donna M. Ambrosino, Deborah C. Molrine, Gregory J. Babcock 2012 University of Massachusetts Medical School

Human Monoclonal Antibody Hcv1 Effectively Prevents And Treats Hcv Infection In Chimpanzees, Trevor J. Morin, Teresa J. Broering, Brett A. Leav, Barbara M. Blair, Kirk J. Rowley, Elisabeth N. Boucher, Yang Wang, Peter S. Cheslock, Michael Knauber, David B. Olsen, Steve W. Ludmerer, Gyongyi Szabo, Robert W. Finberg, Robert H. Purcell, Robert E. Lanford, Donna M. Ambrosino, Deborah C. Molrine, Gregory J. Babcock

Gastroenterology Publications and Presentations

Hepatitis C virus (HCV) infection is a leading cause of liver transplantation and there is an urgent need to develop therapies to reduce rates of HCV infection of transplanted livers. Approved therapeutics for HCV are poorly tolerated and are of limited efficacy in this patient population. Human monoclonal antibody HCV1 recognizes a highly-conserved linear epitope of the HCV E2 envelope glycoprotein (amino acids 412-423) and neutralizes a broad range of HCV genotypes. In a chimpanzee model, a single dose of 250 mg/kg HCV1 delivered 30 minutes prior to infusion with genotype 1a H77 HCV provided complete protection from HCV ...


Frequency Of Poor Quality Of Life And Predictors Of Health Related Quality Of Life In Cirrhosis At A Tertiary Care Hospital Pakistan, Om Parkash, Romaina Iqbal, Fatima Jafri, Iqbal Azam, Wasim Jafri 2012 Aga Khan University

Frequency Of Poor Quality Of Life And Predictors Of Health Related Quality Of Life In Cirrhosis At A Tertiary Care Hospital Pakistan, Om Parkash, Romaina Iqbal, Fatima Jafri, Iqbal Azam, Wasim Jafri

Section of Gastroenterology

Background

Cirrhosis produces variety of symptoms which eventually lead to a negative impact on Health Related Quality of Life (HRQOL). The general aim of this study was to evaluate the magnitude of poor HRQOL and to assess factors related with HRQOL in patients with CLD in Pakistan.

Findings

This was a cross sectional study conducted in gastroenterology outpatient clinics of Aga Khan University Hospital, Karachi on adult patients with cirrhosis. In this study chronic liver disease questionnaire (CLDQ) was used to assess HRQOL of these patients and CLDQ score was used as an outcome measure to determine factors related with ...


Increased Microrna-155 Expression In The Serum And Peripheral Monocytes In Chronic Hcv Infection, Shashi Bala, Yaphet Tilahun, Odette Taha, Hawau Alao, Karen Kodys, Donna Catalano, Gyongyi Szabo 2012 University of Massachusetts Medical School

Increased Microrna-155 Expression In The Serum And Peripheral Monocytes In Chronic Hcv Infection, Shashi Bala, Yaphet Tilahun, Odette Taha, Hawau Alao, Karen Kodys, Donna Catalano, Gyongyi Szabo

Gastroenterology Publications and Presentations

BACKGROUND: Hepatitis C Virus (HCV), a single stranded RNA virus, affects millions of people worldwide and leads to chronic infection characterized by chronic inflammation in the liver and in peripheral immune cells. Chronic liver inflammation leads to progressive liver damage. MicroRNAs (miRNA) regulate inflammation (miR-155, -146a and -125b) as well as hepatocyte function (miR-122).

METHODS: Here we hypothesized that microRNAs are dysregulated in chronic HCV infection. We examined miRNAs in the circulation and in peripheral monocytes of patients with chronic HCV infection to evaluate if specific miRNA expression correlated with HCV infection.

RESULTS: We found that monocytes from chronic HCV ...


Plasma Microrna Profiles Distinguish Lethal Injury In Acetaminophen Toxicity: A Research Study, Jeanine Ward, Shashi Bala, Jan Petrasek, Gyongyi Szabo 2012 University of Massachusetts Medical School

Plasma Microrna Profiles Distinguish Lethal Injury In Acetaminophen Toxicity: A Research Study, Jeanine Ward, Shashi Bala, Jan Petrasek, Gyongyi Szabo

Gastroenterology Publications and Presentations

AIM: To investigate plasma microRNA (miRNA) profiles indicative of hepatotoxicity in the setting of lethal acetaminophen (APAP) toxicity in mice.

METHODS: Using plasma from APAP poisoned mice, either lethally (500 mg/kg) or sublethally (150 mg/kg) dosed, we screened commercially available murine microRNA libraries (SABiosciences, Qiagen Sciences, MD) to evaluate for unique miRNA profiles between these two dosing parameters.

RESULTS: We distinguished numerous, unique plasma miRNAs both up- and downregulated in lethally compared to sublethally dosed mice. Of note, many of the greatest up- and downregulated miRNAs, namely 574-5 p, 466 g, 466 f-3p, 375, 29 c, and 148 ...


Rhoa/Rock Pathway Is The Major Molecular Determinant Of Basal Tone In Intact Human Internal Anal Sphincter, Satish Rattan, Jagmohan Singh 2012 Thomas Jefferson University

Rhoa/Rock Pathway Is The Major Molecular Determinant Of Basal Tone In Intact Human Internal Anal Sphincter, Satish Rattan, Jagmohan Singh

Division of Gastroenterology and Hepatology Faculty Papers

Poster presented at: Digestive Disease Week (DDW) International meeting in San Diego, California.

Background and Aims

Knowledge of molecular control mechanisms underlying the basal tone in the intact human IAS is critical for the pathophysiology and rational therapy for debilitating rectoanal motility disorders.


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