Digestive System Diseases Commons^™

Enhancing Microbiome Host Disease Prediction With Variational Autoencoders, Celeste Manughian-Peter

Computational and Data Sciences (MS) Theses

Advancements in genetic sequencing methods for microbiomes in recent decades have permitted the collection of taxonomic and functional profiles of microbial communities, accelerating the discovery of the functional aspects of the microbiome and generating an increased interest among clinicians in applying these techniques with patients. This advancement has coincided with software and hardware improvements in the field of machine learning and deep learning. Combined, these advancements implicate further potential for progress in disease diagnosis and treatment in humans. The ability to classify a human microbiome profile into a disease category, and additionally identify the differentiating factors within the profile between …

The Sulfur Microbial Diet And Risk Of Colorectal Cancer By Molecular Subtypes And Intratumoral Microbial Species In Adult Men, Daniel R. Sikavi, Long H. Nguyen, Koichiro Haruki, Tomotaka Ugai, Wenjie Ma, Dong D. Wang, Kelsey N. Thompson, Yan Yan, Tobyn Branck, Jeremy E. Wilkinson, Naohiko Akimoto, Rong Zhong, Mai Chan Lau, Kosuke Mima, Keisuke Kosumi, Teppei Morikawa, Eric B. Rimm, Wendy S. Garrett, Jacques Izard, Yin Cao, Mingyang Song, Curtis Huttenhower, Shuji Ogino, Andrew T. Chan

Department of Food Science and Technology: Faculty Publications

Introduction: We recently described the sulfur microbial diet, a pattern of intake associated with increased gut sulfur-metabolizing bacteria and incidence of distal colorectal cancer (CRC). We assessed whether this risk differed by CRC molecular subtypes or presence of intratumoral microbes involved in CRC pathogenesis (Fusobacterium nucleatum and Bifidobacterium spp.).

Methods: We performed Cox proportional hazards modeling to examine the association between the sulfur microbial diet and incidence of overall and distal CRC by molecular and microbial subtype in the Health Professionals Follow-Up Study (1986-2012).

Results: We documented 1,264 incident CRC cases among 48,246 men, approximately 40% …

Detection Of Typhoid Carriers By Duodenal Fluid Culture In A Tertiary Care Hospital, Karachi: A Cross-Sectional Study, Sonia Qureshi, Mohammad Tahir Yousafzai, Shafquat Rozi, Shahida Qureshi, Aneeta Hotwani, Kamran Sadiq, Om Parkash, Abdul Momin Kazi, Furqan Kabir, Hadi Usmani, Farah Naz Qamar

Department of Paediatrics and Child Health

We aimed to detect typhoid carriers by performing duodenal fluid culture in patients in a tertiary care hospital in Pakistan. A cross-sectional study was conducted during 2017 at the Aga Khan University Hospital, Karachi. Patients who underwent upper gastrointestinal endoscopy were included. Participants were interviewed, and duodenal fluid samples were taken for culture to detect Salmonella typhi (S. typhi) and paratyphi. A polymerase chain reaction on 100 randomly selected sub-samples was also conducted. A total of 477 participants were enrolled. The mean age was 42.4±15.5 years. History of typhoid fever was present in 73 (15.3%) participants. Out of the 477 …

Nanozyme: A Developing Nanotechnology For The Detection Of Foodborne Pathogens, Nilamben D. Panchal

Electronic Theses & Dissertations

Increasing foodborne illnesses have led to global health and economic burdens. E. coli O157:H7 is one of the most common disease-provoking pathogens and known to be lethal Shiga toxin-producing E. coli (STEC) strains. With a low infection dose in addition to person-to-person transmission, STEC infections are easily spread. As a result, specific and rapid testing methods to identify foodborne pathogens are urgently needed. Nanozymes have emerged as enzyme-mimetic nanoparticles, demonstrating intrinsic catalytic activity that could allow for rapid, specific, and accurate pathogen identification in the agrifood industry. In this study, we explored a trimodal nanoplatform utilizing colorimetric kinetics based on …

A Retrospective Review On Antibiotic Use In Acute Watery Diarrhea In Children In A Tertiary Care Hospital Of Karachi, Pakistan, Sonia Qureshi, Shahzadi Resham, Mariam Hashmi, Abdullah B. Naveed, Zoya Haq, Syed Asad Ali

Department of Paediatrics and Child Health

Introduction: Responsible for at least one in nine pediatric deaths, diarrheal diseases are the leading, global cause of death. Further abetted by improper antibiotic use in a hospital setting, children with acute watery diarrhea can see prolonged hospital stays, and unwanted adverse effects such as antibiotic resistance. Hence, this study is aimed to identify the association between antibiotic usage for the treatment of acute watery diarrhea in children, and the impact this line of management has on the duration of their hospital stay.
Methods: A retrospective review was conducted at the department of Pediatric of Aga Khan University Hospital (AKUH) …

Ganglioside Alters Phospholipase Trafficking, Inhibits Nf-Κb Assembly, And Protects Tight Junction Integrity, John J. Miklavcic, Qun Li, Jordan Skolnick, Alan B. R. Thomson, Vera C. Mazurak, Michael Tom Clandinin

Food Science Faculty Articles and Research

Background and Aims: Dietary gangliosides are present in human milk and consumed in low amounts from organ meats. Clinical and animal studies indicate that dietary gangliosides attenuate signaling processes that are a hallmark of inflammatory bowel disease (IBD). Gangliosides decrease pro-inflammatory markers, improve intestinal permeability, and reduce symptoms characteristic in patients with IBD. The objective of this study was to examine mechanisms by which dietary gangliosides exert beneficial effects on intestinal health.

Methods: Studies were conducted in vitro using CaCo-2 intestinal epithelial cells. Gangliosides were extracted from milk powder and incubated with differentiated CaCo-2 cells after exposure to pro-inflammatory stimuli. …

Crohn’S Disease And Omega 3: Can It Decrease Crp? A Literature Review, Ariana L. Vyvjala

Bachelors of Science in Nursing

The Crohn’s and Colitis foundation of America estimates that 70,000 Americans are diagnosed with inflammatory bowel disease (IBD) each year (2021). Crohn's disease is an inflammatory bowel disease characterized by periods of remission and exacerbation triggered by an increase in stress (Mackner et al., 2020). Patients can experience debilitating abdominal pain, diarrhea, fatigue, blood in the stool, and reduced appetite during an exacerbation period, all of which can lead to life-threatening complications (Mayo Clinic, 2020). In most cases, patients are diagnosed in their late teens or early adulthood years, and are prescribed anti-inflammatory drugs (Mayo Clinic, 2020). As there is …

Habitual Sleep Duration And The Colonic Mucosa-Associated Gut Microbiota In Humans-A Pilot Study, Ritwick Agrawal, Nadim J Ajami, Sonal Malhotra, Liang Chen, Donna L White, Amir Sharafkhaneh, Kristi L Hoffman, David Y Graham, Hashem B El-Serag, Joseph F Petrosino, Li Jiao

Faculty, Staff and Students Publications

We examined the association between the colonic adherent microbiota and nocturnal sleep duration in humans. In a cross-sectional study, 63 polyp-free adults underwent a colonoscopy and donated 206 mucosal biopsies. The gut microbiota was profiled using the 16S rRNA gene sequencing targeting the V4 region. The sequence reads were processed using UPARSE and DADA2, respectively. Lifestyle factors, including sleep habits, were obtained using an interviewer-administered questionnaire. We categorized the participants into short sleepers (<6 h per night; n = 16) and normal sleepers (6–8 h per night; n = 47) based on self-reported data. Differences in bacterial biodiversity and the taxonomic relative abundance …

Perception Of Non-Alcoholic Fatty Liver Disease: Real-Life Experience From Pakistan, Nazish Butt, Muhammad Ali Khan, Lajpat Rai, Riaz Hussain Channa, Hanisha Khemani, Amanullah Abbasi

Section of Gastroenterology

Introduction: Non-alcoholic fatty liver disease (NALFD) has become one of the most pervasive causes of hepatic pathology. Because of its marked association with metabolic syndrome, type II diabetes and cardiovascular disease, NAFLD has gained substantial focus recently. Its prevalence and incidence are on the rise in Pakistan. However, due to its indolent and mostly asymptomatic course, NAFLD is often overlooked. This reckless behavior towards a potentially deadly disease is influenced most notably by disinformation or flawed perception, although there are a number of other complex socioeconomic components to this as well. With respect to NAFLD, the gap between disease understanding …

Microbial Science Research In The Post-Covid Environment, Nguyen K Nguyen, Carey-Ann D Burnham, Arturo Casadevall, Mary K Estes, Rebecca V Ferrell, Suzanne M J Fleiszig, Speakers, Moderators, And Panelists Of The Asm Virtual Symposium: Microbial Science Research In The Post-Covid Environment

Faculty, Staff and Students Publications

Since early 2020, the world has witnessed the unprecedented accomplishments of the scientific community in the fight against the coronavirus disease 2019 (COVID-19) pandemic. In the meantime, we also learned valuable lessons and recognized the challenges that hindered our successes. In this article, we synthesize the ideas discussed at the ASM Virtual Symposium: Microbial Science Research in the Post-COVID Environment on 10 November 2020. We propose three new approaches that microbiology researchers can embrace to overcome these challenges. Moreover, we suggest broad systematic changes to focus on social impacts, teamwork, and diversity, equity, and inclusion. We believe these values are …

Frequency And Risk Factors Of Non-Alcoholic Fatty Liver Disease In Helicobacter Pylori-Infected Dyspeptic Patients: A Cross-Sectional Study, Basit Siddiqui, Muhammad Kamran, Shiyam Sunder Tikmani, Rabeea Azmat, Zain Mushtaq, Saad Bin Zafar Mahmood, Muhammad Tahir Khan, Javed Yakoob, Zaigham Abbas

Section of Gastroenterology

Background: In dyspeptic patients with Helicobacter pylori contributes to non-alcoholic fatty liver disease. However, little evidence available from Pakistan.
Objective: The study aims to determine the frequency and risk factors of non-alcoholic fatty liver disease in dyspeptic patients with Helicobacter pylori.
Methods: This cross-sectional study was conducted between 22 November 2016 and 30 June 2018. Adults of age between 18 and 90 years who attended the out-patient department due to abdominal discomfort, pain, fullness, and bloating who underwent upper gastrointestinal tract endoscopy were enrolled after taking informed consent. Patients with celiac disease, inflammatory bowel disease, taking alcohol, pregnant women …

Patients' And Providers' Needs And Preferences When Considering Fertility Preservation Before Cancer Treatment: Decision-Making Needs Assessment, Aubri Hoffman, Laura Crocker, Aakrati Mathur, Deborah Holman, June Weston, Sukhkamal Campbell, Ashley Housten, Andrea Bradford, Shilpi Agrawala, Terri L Woodard

Faculty, Staff and Students Publications

BACKGROUND: As cancer treatments continue to improve, it is increasingly important that women of reproductive age have an opportunity to decide whether they want to undergo fertility preservation treatments to try to protect their ability to have a child after cancer. Clinical practice guidelines recommend that providers offer fertility counseling to all young women with cancer; however, as few as 12% of women recall discussing fertility preservation. The long-term goal of this program is to develop an interactive web-based patient decision aid to improve awareness, access, knowledge, and decision making for all young women with cancer. The International Patient Decision …

Advantage Of 16s Rrna Amplicon Sequencing In Helicobacter Pylori Diagnosis, Boldbaatar Gantuya, Hashem B El Serag, Batsaikhan Saruuljavkhlan, Dashdorj Azzaya, Takashi Matsumoto, Tomohisa Uchida, Khasag Oyuntsetseg, Nyamdorj Oyunbileg, Duger Davaadorj, Yoshio Yamaoka

Faculty, Staff and Students Publications

BACKGROUND: 16S rRNA amplicon sequencing is an accurate method of detecting microbial infection without culture. It is unclear if sequencing has additional benefits over routine diagnostic methods for Helicobacter pylori testing.

METHODS: We enrolled Mongolian volunteers with dyspepsia. Using routine diagnostic methods, positive H. pylori was defined as positive results on histology/immunohistochemistry, culture, rapid urease test, or serology; negative H. pylori was defined by negative results from all these tests. We performed 16S rRNA sequencing on gastric biopsy specimens and calculated cutoffs for operational taxonomic units (OTUs) and relative abundance (RA) to define positive results using ROC curves.

RESULTS: We …

A Novel Biomarker Panel For The Early Detection And Risk Assessment Of Hepatocellular Carcinoma In Patients With Cirrhosis, Ilvira M Khan, Donjeta Gjuka, Jingjing Jiao, Xiaoling Song, Ying Wang, Jing Wang, Peng Wei, Hashem B El-Serag, Jorge A Marrero, Laura Beretta

Faculty, Staff and Students Publications

Novel biomarkers for hepatocellular carcinoma (HCC) surveillance in patients with cirrhosis are urgently needed. We previously identified osteopontin (OPN) as a promising biomarker for the early detection of HCC. This study is to further validate the performance of OPN and identify fatty acids (FA) that could improve OPN's performance in HCC risk assessment in patients with cirrhosis. To that end, we selected 103 patients with cirrhosis under surveillance. Among them, 40 patients developed HCC during follow-up. We investigated in these 103 patients, the association between HCC incidence and prediagnostic serum levels of AFP, OPN, and 46 FAs. OPN performance was …

Interventional Treatment With The Transjugular Intrahepatic Portosystemic Shunt (Tips) Procedure May Offer A Preferable Alternative To Systemic Anticoagulation In Patients With Cirrhosis And Portal Vein Thrombosis, Molly N. Pantelic

Clinical Research in Practice: The Journal of Team Hippocrates

A clinical decision report appraising:

Wang Z, Jiang MS, Zhang HL, et al. Is post-tips anticoagulation therapy necessary in patients with cirrhosis and portal vein thrombosis? A randomized controlled trial. Radiology. 2016;279(3):943-951. https://doi.org/10.1148/radiol.2015150369

for a patient with cryptogenic cirrhosis, gastroesophageal varices, pancreatic cancer, and portal vein thrombosis.

Reconsidering Perioperative Antibiotic Use In Elective Laparoscopic Cholecystectomy, Kayla B. Briggs

Research Days

Background: As rates of antimicrobial resistance increase, the use of prophylactic perioperative antibiotics (PPA) has been questioned in cases with a low risk of surgical site infection (SSI). In laparoscopic cholecystectomy performed for biliary dyskinesia, hyperkinetic gallbladder, and gallbladder polyps, the use of PPA varies with no widely accepted practice pattern.

Objectives/Goal: We examined institutional PPA usage and SSI rates for elective laparoscopic cholecystectomy to determine if PPAs are indicated.

Methods/Design: Following IRB approval, children/2010 and 8/2020 for symptomatic cholelithiasis, biliary dyskinesia, hyperkinetic gallbladder, and/or gallbladder polyps were included. Several surgeons changed practice to selective PPA use in 2016, decreasing …

The Role Of Fractionated Exhaled Nitric Oxide (Feno) In Eosinophilic Esophagitis And The Relationship With Downstream Eosinophils, Panamdeep Kaur

Research Days

Background: Eosinophilic Esophagitis (EoE) is a chronic immune mediated disease of the esophagus characterized by symptoms of esophageal dysfunction and eosinophilic-predominant inflammation of the esophagus. It can lead to feeding difficulties, failure to thrive, and esophageal stricturing. Currently, the gold standard for diagnosis and assessing response to therapy is upper endoscopy and histopathological analysis of biopsies. A noninvasive, cost-effective, and low risk alternative that can aid in the management of EoE is not currently available. Previous studies assessing correlation of fractionated exhaled nitric oxide (FeNO) with degree of esophageal eosinophilic inflammation were low powered but noted a trend for association. …

Setting A Threshold For Discharge Antibiotics In Children With Perforated Appendicitis: A Study Update, Kayla B. Briggs

Research Days

Background: To address concerns of antibiotic overutilization, normal white blood cell count (WBC) for age was previous l criteria for discontinuing antibiotics at discharge in perforated appendicitis. Retrospective review suggested a decrease in threshold for additional antibiotic administration to a discharge WBC(IAA).

Objectives/Goal: The purpose of our study is to determine if lowering the threshold for additional antibiotic administration decreased the rate of IAA after laparoscopic appendectomy for perforated appendicitis in children who were not discharged with additional antibiotics.

Methods/Design: Following IRB approval, prospective data was retrospectively reviewed. Children with perforated appendicitis identified during laparoscopic appendectomy at our institution between …

Mucin And Splice Variant Profiles Of Pancreatic Adenocarcinoma Predict Patient Survival And Subtyping, Christopher M. Thompson

Theses & Dissertations

PDAC is a pancreatic epithelial malignancy and demonstrates aggressive progression and bleak patient prognosis. Despite decades of research, the evolution of novel diagnostics and intervention modalities for PDAC is stagnant. This dissertation explores the characteristic aberrant and elevated expression of mucins in PDAC. Beginning with the hypothesis that mucins are associated with disease aggressiveness, analysis of PDAC patient survival in TCGA revealed no associations between single mucin expression and patient survival. This led to the underlying issue of PDAC tumor cellularity since this disease demonstrates variability in the proportion of cancer cells within the tumor. Tumor purity assessed with the …

Incidental Malrotation In Adolescent Diagnosed With Appendicitis, David Ho, Jinsy Jacob, Russell Mordecai, Adam Richards

Rowan-Virtua Research Day

17-year-old male patient with a history of autism presenting with right lower quadrant pain that started in the morning. The appendix was not able to be visualized by ultrasonography. An abdominal and pelvic CT with contrast showed a dilated appendix with surrounding inflammation. Malrotation was not identified on CT Scan. Patient was transferred to a nearby Children’s Hospital for laparoscopic appendectomy. During the procedure, the pediatric surgeon noted that initially, neither the appendix nor cecum was present in the right lower quadrant. This case represents an uncommon finding for a patient in the adolescent age group.

Stercoral Colitis Leading To Hypotension And Ivc Syndrome With Respiratory Failure Following Fecal Disimpaction, Kelly Schuitema, Nicholas Tomasello

Rowan-Virtua Research Day

Constipation is an extremely common chief complaint in the emergency department, contributing to approximately 700,000 emergency department visits in 2011. Severe constipation can result in stercoral colitis, which in turn can lead to development of ulceration and colonic perforation leading to fatal peritonitis. As a result, prompt recognition and treatment of this condition with bowel cleansing and fecal disimpaction are often recommended. Here, we will discuss a case of a 62-year-old male with a history of schizoaffective disorder who came into the Emergency Department (ED) hypotensive with stercoral colitis secondary to severe constipation. Following bedside fecal disimpaction, the patient developed …

Case Report: Splenic Infarct S/P Sleeve Gastrectomy, Dhara Patel, James Espinosa, Kishan Patel

Rowan-Virtua Research Day

A case of splenic infarct s/p sleeve gastrectomy is presented. A 28-year-old female presented with LUQ pain s/p sleeve gastrectomy POD7. CT scan with IV contrast revealed an area of nonenhancement at the superomedial aspect of the spleen consistent with a small splenic infarct. She was transferred out to the hospital under the service of the surgeon who had performed her sleeve gastrectomy. Splenic infarction is a rare post-op complication s/p sleeve gastrectomy. The spleen has dual blood supply via the splenic artery and short gastric arteries making complete infarction rare. It is usually diagnosed via CT with IV contrast. …

Identification And Characterization Of Butyrate-Producing Species In The Human Gut Microbiome, Grace Maline

Theses/Capstones/Creative Projects

Inflammatory Bowel Diseases (IBD) including ulcerative colitis, indeterminate colitis, and Crohn’s disease are increasingly common conditions that places a high physical and financial burden on individuals and global healthcare systems. Though many treatments exist for these conditions, their unpredictable nature and causation make them difficult to manage across the variety of IBD patients. Additionally, many of these treatments come with undesirable side effects or modes of delivery. Therefore, it is worthwhile to explore the use of Short Chain Fatty Acids (SCFAs) such as butyrate whose affects in the human gut include decreased inflammation and decreased risk of colorectal cancer. As …

Pde4 Inhibition: A Novel Therapeutic Strategy In Liver Fibrosis., Mohamed Elnagdy

Electronic Theses and Dissertations

Background: Liver fibrosis is accumulation of extracellular matrix (ECM) proteins due to chronic liver injury. Chronic hepatic damage can occur due to multiple causes including, alcohol, non-alcoholic steatohepatitis and chronic viral hepatitis. Liver fibrosis is a critical problem worldwide due to the extremely high incidence of alcohol associated liver damage and chronic viral hepatitis. Moreover, there is no FDA approved therapy for liver fibrosis. Activation and transdifferentiation of quiecent hepatic stellate cells (HSCs) to myofibroblasts (MFBs) is the main event contributing to liver fibrosis. This process involves two phases, the initiation and the perpetuation phases. Hepatocyte injury and inflammatory response …

Patient-Reported Barriers Are Associated With Receipt Of Hepatocellular Carcinoma Surveillance In A Multicenter Cohort Of Patients With Cirrhosis, Amit G Singal, Jasmin A Tiro, Caitlin C Murphy, James-Michael Blackwell, Jennifer R Kramer, Aisha Khan, Yan Liu, Song Zhang, Jessica L Phillips, Ruben Hernaez

Faculty, Staff and Students Publications

BACKGROUND: More than 20% of patients with cirrhosis do not receive semi-annual hepatocellular carcinoma (HCC) surveillance as recommended. Few studies have evaluated the effects of patient-level factors on surveillance receipt.

METHODS: We administered a telephone survey to a large cohort of patients with cirrhosis from 3 health systems (a tertiary care referral center, a safety-net health system, and Veterans Affairs) to characterize patient knowledge, attitudes, and perceived barriers of HCC surveillance. Multinomial logistic regression was performed to identify factors associated with HCC surveillance receipt (semi-annual and annual vs none) during the 12-month period preceding survey administration.

RESULTS: Of 2871 patients …

Associations Of Abdominal Pain And Psychosocial Distress Measures With Health-Related Quality-Of-Life In Pediatric Healthy Controls And Irritable Bowel Syndrome, John M Hollier, Danita I Czyzewski, Mariella M Self, Yan Liu, Erica M Weidler, Miranda A L Van Tilburg, James W Varni, Robert J Shulman

Faculty, Staff and Students Publications

BACKGROUND: Children with irritable bowel syndrome (IBS) have lower health-related quality-of-life (HRQOL) than healthy controls (HC). Abdominal pain and psychosocial distress are negatively associated with HRQOL, although their relative effect is unclear.

AIM: The aim of this study was to compare the relative associations of abdominal pain and psychosocial distress with HRQOL in HC and IBS.

STUDY: Baseline abdominal pain, psychosocial distress, and HRQOL measures were obtained from HC and IBS pediatric clinical trial participants. Regression assessed which measures were most strongly associated with Physical and Psychosocial HRQOL separately by group. Interaction analyses examined group differences in the associations of …

Dietary Factors And Gastric Intestinal Metaplasia Risk Among Us Veterans, Mimi C Tan, Niharika Mallepally, Quynh Ho, Yan Liu, Hashem B El-Serag, Aaron P Thrift

Faculty, Staff and Students Publications

BACKGROUND: Studies on diet and gastric intestinal metaplasia (GIM) risk are lacking in US populations.

AIM: To determine the associations of dietary factors and risk of GIM among a US population with typical American diet.

METHODS: We analyzed data from a cross-sectional study of veterans attending primary care and endoscopy clinics at the Houston VA Medical Center. Patients completed a 110-item Block Food Frequency Questionnaire then underwent upper endoscopy with gastric mapping biopsies. We compared cases defined by GIM on ≥ 1 non-cardia gastric biopsy to controls without GIM. Associations of dietary factors and GIM were estimated using logistic regression …

Gastrointestinal Complications In Critically Ill Children: Experience From A Resource-Limited Country, Sidra Ishaque, Mariam Shakir, Asma Akbar Ladak, Anwar Ul Haque

Department of Paediatrics and Child Health

Objectives: To determine the frequency and predictors of outcome of gastrointestinal complications (GIC) in critically ill children.
Methods: This descriptive study was prospectively conducted in The Pediatric Intensive Care Unit (PICU), The Aga Khan University Hospital (AKUH), Karachi, from September 2015 to January 2017. After obtaining approval from the Ethical Review Committee of AKUH and informed consent from the parents, all children (aged one month to 18 years), of either gender, admitted to the Pediatric Intensive Care Unit (PICU) during the study period were included. The frequency of the defined GIC: vomiting, high gastric residue volume (GRV), diarrhea, constipation, and …

Proteomic Investigation Of Glyceraldehyde-Derived Intracellular Ages And Their Potential Influence On Pancreatic Ductal Cells, Lakmini Senavirathna, Cheng Ma, Ru Chen, Sheng Pan

Faculty, Staff and Students Publications

Glyceraldehyde-derived advanced glycation end products (AGEs) play an important role in the pathogenesis of many diseases including cancer. Accumulation of intracellular AGEs could stimulate cancer induction and facilitate cancer progression. We evaluated the toxic effect of glyceraldehyde-derived intracellular AGEs on normal and malignant pancreatic ductal cells by assessing the cell viability, toxicity, and oxidative stress, followed by proteomic analysis. Our functional studies showed that pancreatic cancer cells (PANC-1 and MIA PaCa-2) were more resistant to glyceraldehyde treatment compared to normal pancreatic ductal epithelial cells (HPDE), while cytotoxicity effects were observed in all cell types. Furthermore, using 13C isotopic labeled glyceraldehyde, …

Intestinal Dysbiosis Disguised As A Rectal Fistula Treated With Autologous Fecal Microbiota Transplantation, Nicolina Scibelli, Pratishtha Singh, Kathleen Raynor

South Atlantic Division GME Research Day 2021

No abstract provided.