Digestive System Diseases Commons^™

Simultaneous Use Of Endobronchial And Endoscopic Ultrasound Guidance As Primary Tools In The Diagnosis Of Malignant Pleural Mesothelioma, Babith Mankidy, Jordan Sparkman, Shreyes Boddu, Quillann Huang, Munish Sharma

Faculty, Staff and Students Publications

Malignant pleural mesothelioma (MPM) is related to exposure to asbestos. It is insidious in nature and is generally diagnosed at an advanced stage. MPM is aggressive and portends a poor prognosis. Definitive diagnosis is usually established by obtaining pathological samples of the pleura by medical or surgical thoracoscopy. However, these procedures are invasive and carry a risk of seeding of biopsy sites with tumors. We herein report an infrequently encountered case of simultaneous use of endobronchial ultrasound and endoscopic ultrasound-guided biopsy of malignant pleural mesothelioma in a 48-year-old female patient.

Comparative Effectiveness Of Surveillance Colonoscopy Intervals On Colorectal Cancer Outcomes In A National Cohort Of Patients With Inflammatory Bowel Disease, Hyun-Seok Kim, Ruben Hernaez, Shubhada Sansgiry, Akbar K Waljee, Frank I Scott, James D Lewis, Hashem B El-Serag, Jason K Hou

Faculty, Staff and Students Publications

BACKGROUND & AIMS: Surveillance colonoscopy is recommended to reduce colorectal cancer (CRC)-related morbidity and mortality in patients with inflammatory bowel disease (IBD). The comparative effectiveness of varying colonoscopy intervals on CRC outcomes among patients with IBD is unknown.

METHODS: We performed a retrospective cohort study of patients with confirmed CRC within a cohort of 77,824 patients with IBD during 2000 to 2015 in the National Veterans Health Administration. We examined the association between colonoscopy surveillance intervals on CRC stage, treatment, or all-cause and cancer-specific mortality. The interval of colonoscopy prior to CRC diagnosis was categorized as those performed within <1 >year, …

Genetic And Small-Molecule Modulation Of Stat3 In A Mouse Model Of Crohn's Disease, Prema Robinson, Emily Magness, Kelsey Montoya, Nikita Engineer, Thomas K Eckols, Emma Rodriguez, David J Tweardy

Faculty, Staff and Student Publications

Crohn's disease (CD), is an inflammatory bowel disease that can affect any part of the gastro-intestinal tract (GI) and is associated with an increased risk of gastro-intestinal cancer. In the current study, we determined the role of genetic and small-molecule modulation of STAT3 in a mouse model of CD. STAT3 has 2 isoforms (α, β) which are expressed in most cells in a 4:1 ratio (α: β). STAT3α has pro-inflammatory and anti-apoptotic functions, while STAT3β has contrasting roles. We used an animal model of CD consisting of intrarectal administration of 2,4,6-trinitrobenzene sulfonic acid and examined the severity of CD in …

Metabolic Targeting Of Nrf2 Potentiates The Efficacy Of The Trap1 Inhibitor G-Tpp Through Reduction Of Ros Detoxification In Colorectal Cancer, Hong-Yuan Tsai, Mary P Bronner, Jordon K March, John F Valentine, Noah F Shroyer, Lisa A Lai, Teresa A Brentnall, Sheng Pan, Ru Chen

Faculty, Staff and Students Publications

Tumor necrosis factor receptor-associated protein 1 (TRAP1) is a mitochondrial homolog of HSP90 chaperones. It plays an important role in protection against oxidative stress and apoptosis by regulating reactive oxidative species (ROS). To further elucidate the mechanistic role of TRAP1 in regulating tumor cell survival, we used gamitrinib-triphenylphosphonium (G-TPP) to inhibit TRAP1 signaling pathways in colon cancer. Inhibition of TRAP1 by G-TPP disrupted redox homeostasis and induced cell death. However, colon cancers show a wide range of responses to G-TPP treatment through the induction of variable ER stress responses and ROS accumulation. Interestingly, a strong inverse correlation was observed between …

Coating Formulation Change Leads To Inferior Performance Of Long-Lasting Insecticidal Nets In Papua New Guinea, Nakei Bubun, Evodia Anetul, Melanie Koinari, Timothy W Freeman, Stephan Karl

Faculty, Staff and Student Publications

BACKGROUND: Long-lasting insecticidal nets (LLINs) play a key role in reducing malaria transmission in endemic countries. In a previous study, the authors demonstrated a substantial decrease in the bioefficacy of LLINs for malaria prevention delivered to Papua New Guinea (PNG) between 2013 and 2019. This coincided with a rise in malaria cases in the country. The present study was aimed at determining the underlying cause of the reduced bioefficacy observed in these LLINs. The main hypothesis was that a change in the coating formulation of the respective LLIN product was responsible, and had led to significantly altered product properties and …

Effect Of Selective Decontamination Of The Digestive Tract On Hospital Mortality In Critically Ill Patients Receiving Mechanical Ventilation: A Randomized Clinical Trial, The Suddicu Investigators For The Australian And New Zealand Intensive Care Society Clinical Trials Group, John A Myburgh, Ian M Seppelt, Fiona Goodman, Laurent Billot, Maryam Correa, Joshua S Davis, Anthony C Gordon, Naomi E Hammond, Jon Iredell, Qiang Li, Sharon Micallef, Jennene Miller, Jayanthi Mysore, Colman Taylor, Paul J Young, Brian H Cuthbertson, Simon R Finfer

Faculty, Staff and Student Publications

IMPORTANCE: Whether selective decontamination of the digestive tract (SDD) reduces mortality in critically ill patients remains uncertain.

OBJECTIVE: To determine whether SDD reduces in-hospital mortality in critically ill adults.

DESIGN, SETTING, AND PARTICIPANTS: A cluster, crossover, randomized clinical trial that recruited 5982 mechanically ventilated adults from 19 intensive care units (ICUs) in Australia between April 2018 and May 2021 (final follow-up, August 2021). A contemporaneous ecological assessment recruited 8599 patients from participating ICUs between May 2017 and August 2021.

INTERVENTIONS: ICUs were randomly assigned to adopt or not adopt a SDD strategy for 2 alternating 12-month periods, separated by a …

High Throughput Sequencing For Clinical Tuberculosis: An Overview, Tara E Ness, Andrew Dinardo, Maha R Farhat

Faculty, Staff and Students Publications

High throughput sequencing (HTS) can identify the presence of Mycobacterium tuberculosis DNA in a clinical sample while also providing information on drug susceptibility. Multiple studies have provided a context for exploring the clinical application of HTS for TB diagnosis. The workflow challenges, strengths and limitations of the various sequencing platforms, and tools used for analysis are presented to provide a framework for further innovations in the field.

Effects Of Chronic Cirrhosis Induced By Intraperitoneal Thioacetamide Injection On The Protein Content And Michaelis–Menten Kinetics Of Cytochrome P450 Enzymes In The Rat Liver Microsomes, Devaraj Venkatapura Chandrashekar, Barent N. Dubois, Mamunur Rashid, Reza Mehvar

Pharmacy Faculty Articles and Research

Chronic intraperitoneal injection of thioacetamide (TAA) in rats has been used as an animal model of human cirrhosis to study the effects of the disease on drug metabolism. However, TAA inhibits P450 enzymes directly and independently of cirrhosis. We investigated the effects of chronic cirrhosis in rats, induced by 10 weeks of intraperitoneal TAA, on the P450 enzymes after a 10-day washout period to eliminate TAA. Liver histology and serum biomarkers of hepatic function confirmed cirrhosis in all animals. Microsomal total P450 content, P450 reductase activity and ethoxycoumarin O-deethylase activity, a general marker of P450 activity, were significantly reduced by …

Evaluation Of Wheat-Specific Peptide Targets For Use In The Development Of Elisa And Mass Spectrometry-Based Detection Methods, Jessica Humphrey

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Individuals with IgE-mediated wheat allergy and celiac disease must avoid the consumption of wheat. Those with celiac disease must also avoid rye and barley in addition to wheat as these make up the gluten-containing grains. To ensure products are accurately labeled, ELISA methods may be used to monitor compliance with food allergen and gluten-free regulations. Currently, available ELISA methods for wheat detection utilize monoclonal antibodies that target peptides from the gluten fraction of proteins, and therefore, also detect rye and barley. Limitations such as differing antibody reactivity and unequal gluten content among wheat, rye, and barley have led to inconsistent …

International Delphi Consensus Guidelines For Follow-Up After Prophylactic Total Gastrectomy: The Life After Prophylactic Total Gastrectomy (Lag-Tg) Study, Geoffrey Roberts, Patrick R Benusiglio, Tanya Bisseling, Daniel Coit, Jeremy L Davis, Sam Grimes, Theresa A Guise, Richard Hardwick, Kirsty Harris, Paul Furman Mansfield, Jeremy Rossaak, Karen Chelcun Schreiber, Peter P Stanich, Vivian E Strong, Pardeep Kaurah

Faculty, Staff and Student Publications

BACKGROUND: Prophylactic total gastrectomy (PTG) remains the only means of preventing gastric cancer for people with genetic mutations predisposing to Hereditary Diffuse Gastric Cancer (HDGC), mainly in the CDH1 gene. The small but growing cohort of people undergoing PTG at a young age are expected to have a life-expectancy close to the general population, however, knowledge of the long-term effects of, and monitoring requirements after, PTG is limited. This study aims to define the standard of care for follow-up after PTG.

METHODS: Through a combination of literature review and two-round Delphi consensus of major HDGC/PTG units and physicians, and patient …

Same Day Discharge Following Elective, Minimally Invasive, Colorectal Surgery : A Review Of Enhanced Recovery Protocols And Early Outcomes By The Sages Colorectal Surgical Committee With Recommendations Regarding Patient Selection, Remote Monitoring, And Successful Implementation, Elisabeth C Mclemore, Lawrence Lee, Traci L Hedrick, Laila Rashidi, Erik P Askenasy, Daniel Popowich, Patricia Sylla

Faculty, Staff and Student Publications

BACKGROUND: As enhanced recovery programs (ERPs) have continued to evolve, the length of hospitalization (LOS) following elective minimally invasive colorectal surgery has continued to decline. Further refinements in multimodal perioperative pain management strategies have resulted in reduced opioid consumption. The interest in ambulatory colectomy has dramatically accelerated during the COVID-19 pandemic. Severe restrictions in hospital capacity and fear of COVID transmission forced surgical teams to rethink strategies to further reduce length of inpatient stay.

METHODS: Members of the SAGES Colorectal Surgery Committee began reviewing the emergence of SDD protocols and early publications for SDD in 2019. The authors met at …

Is Antibiotic Prophylaxis Necessary After Endoscopic Ultrasound-Guided Fine-Needle Aspiration Of Pancreatic Cysts?, Seifeldin Hakim, Mihajlo Gjeorgjievski, Zubair Khan, Michael E Cannon, Kevin Yu, Prithvi Patil, Roy Tomas Davee, Sushovan Guha, Ricardo Badillo, Laith Jamil, Nirav Thosani, Srinivas Ramireddy

Faculty, Staff and Student Publications

BACKGROUND/AIMS: Current society guidelines recommend antibiotic prophylaxis for 3 to 5 days after endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) of pancreatic cystic lesions (PCLs). The overall quality of the evidence supporting this recommendation is low. In this study, we aimed to assess cyst infection and adverse event rates after EUS-FNA of PCLs among patients treated with or without postprocedural prophylactic antibiotics.

METHODS: We retrospectively reviewed all patients who underwent EUS-FNA of PCLs between 2015 and 2019 at two large-volume academic medical centers with different practice patterns of postprocedural antibiotic prophylaxis. Data on patient demographics, cyst characteristics, fine-needle aspiration technique, periprocedural and …

International Delphi Consensus Guidelines For Follow-Up After Prophylactic Total Gastrectomy: The Life After Prophylactic Total Gastrectomy (Lap-Tg) Study, Geoffrey Roberts, Patrick R Benusiglio, Tanya Bisseling, Daniel Coit, Jeremy L Davis, Sam Grimes, Theresa A Guise, Richard Hardwick, Kirsty Harris, Paul Furman Mansfield, Jeremy Rossaak, Karen Chelcun Schreiber, Peter P Stanich, Vivian E Strong, Pardeep Kaurah

Faculty, Staff and Student Publications

BACKGROUND: Prophylactic total gastrectomy (PTG) remains the only means of preventing gastric cancer for people with genetic mutations predisposing to Hereditary Diffuse Gastric Cancer (HDGC), mainly in the CDH1 gene. The small but growing cohort of people undergoing PTG at a young age are expected to have a life-expectancy close to the general population, however, knowledge of the long-term effects of, and monitoring requirements after, PTG is limited. This study aims to define the standard of care for follow-up after PTG.

METHODS: Through a combination of literature review and two-round Delphi consensus of major HDGC/PTG units and physicians, and patient …

Nab-Paclitaxel, Capecitabine, And Radiation Therapy After Induction Chemotherapy In Treating Patients With Locally Advanced And Borderline Resectable Pancreatic Cancer: Phase 1 Trial And Imaging-Based Biomarker Validation, Eugene J Koay, Mohamed Zaid, Maureen Aliru, Polycarpe Bagereka, Arie Van Wieren, Maria Jovie Rodriguez, Galia Jacobson, Robert A Wolff, Michael Overman, Gauri Varadhachary, Shubham Pant, Huamin Wang, Ching-Wei Tzeng, Naruhiko Ikoma, Michael Kim, Jeffrey E Lee, Matthew Hg Katz, Eric Tamm, Priya Bhosale, Cullen M Taniguchi, Emma B Holliday, Grace L Smith, Ethan B Ludmir, Bruce D Minsky, Christopher H Crane, Albert C Koong, Prajnan Das, Xuemei Wang, Milind Javle, Sunil Krishnan

Faculty, Staff and Student Publications

PURPOSE: Effective consolidative chemoradiation (CRT) regimens are lacking. In this phase 1 trial, we evaluated the safety and efficacy of nab-paclitaxel, capecitabine, and radiation therapy after induction chemotherapy in patients with locally advanced and borderline-resectable pancreatic cancer (LAPC and BRPC). Also, we evaluated a computed tomography (CT)-based biomarker of response.

METHODS AND MATERIALS: Eligible patients had pathologically confirmed pancreatic ductal adenocarcinoma, underwent computed tomography-imaging, received a diagnosis of LAPC or BRPC, and received induction chemotherapy. Standard 3 + 3 study design was used, with 3 escalating nab-paclitaxel dose levels (50, 75, and 100 mg/m

RESULTS: Twenty-three patients started and finished …

Endoscopic Tacking System As A Novel Tissue Approximation Measure For Very Large Emr Defects, Tara Keihanian, Mohamed O Othman, Salmaan A Jawaid

Faculty, Staff and Students Publications

BACKGROUNDS AND AIMS: Defect closure post-EMR and endoscopic submucosal dissection (ESD) is recommended to decrease the risk of delayed bleeding and perforation. Current methods of tissue approximation and closure of mucosal defects have their limitations, including restricted maneuverability, need for scope withdrawal, or difficulty in apposing larger defects. Through-the-scope HeliX tacking system (Apollo Endosurgery, Austin, Tex, USA) is a novel tissue apposition device designed to mimic suture closure without the need to withdraw the endoscope or insert bulky devices on the tip of the endoscope. Previous reports demonstrate its effectiveness for closure of standard postresection defects, fistulae, and peroral endoscopic …

Analysis Of Insppire-2 Cohort: Risk Factors And Disease Burden In Children With Acute Recurrent Or Chronic Pancreatitis, Aliye Uc, Gretchen A Cress, Fuchenchu Wang, Maisam Abu-El-Haija, Kate M Ellery, Douglas S Fishman, Cheryl E Gariepy, Tanja Gonska, Tom K Lin, Quin Y Liu, Megha Mehta, Asim Maqbool, Brian A Mcferron, Veronique D Morinville, Chee Y Ooi, Emily R Perito, Sarah Jane Schwarzenberg, Zachary M Sellers, Jose Serrano, Uzma Shah, David M Troendle, Michael Wilschanski, Yuhua Zheng, Ying Yuan, Mark E Lowe, Consortium For The Study Of Chronic Pancreatitis, Diabetes And Pancreatic Cancer

Faculty, Staff and Students Publications

OBJECTIVES: The objective of this study is to investigate risk factors and disease burden in pediatric acute recurrent pancreatitis (ARP) and chronic pancreatitis (CP).

METHODS: Data were obtained from INternational Study group of Pediatric Pancreatitis: In search for a cuRE-2 (INSPPIRE-2), the largest multi-center prospective cohort study in pediatric patients with ARP or CP.

RESULTS: Of 689 children, 365 had ARP (53%), 324 had CP (47%). CP was more commonly associated with female sex, younger age at first acute pancreatitis (AP) attack, Asian race, family history of CP, lower BMI%, genetic and obstructive factors, PRSS1 mutations and pancreas divisum. CFTR …

Management Of Upper Gastrointestinal Symptoms In Patients With Autoimmune Gastritis, Juan D Gomez Cifuentes, Jordan Sparkman, David Y Graham

Faculty, Staff and Students Publications

PURPOSE OF REVIEW: Autoimmune gastritis is characterized by atrophy of acid secreting parietal cells resulting in achlorhydria. Upper gastrointestinal symptoms are common in autoimmune gastritis and frequently result in prescriptions for acid suppressant medications despite the inability of the stomach to secrete acid. Evidence-based recommendations for management of gastrointestinal symptoms in autoimmune gastritis are lacking.

RECENT FINDINGS: The most common symptoms in patients with autoimmune gastritis are dyspepsia, heartburn, and regurgitation. Gastroesophageal reflux should be confirmed by pH-impedance testing and is typically weakly acid or alkaline. Therapy for reflux focuses on mechanical prevention of reflux (i.e., elevation of the head …

A Cop1-Gata2 Axis Suppresses Ar Signaling And Prostate Cancer, Tao Shen, Bingning Dong, Yanling Meng, David D Moore, Feng Yang

Faculty, Staff and Students Publications

Androgen receptor (AR) signaling is crucial for driving prostate cancer (PCa), the most diagnosed and the second leading cause of death in male patients with cancer in the United States. Androgen deprivation therapy is initially effective in most instances of AR-positive advanced or metastatic PCa. However, patients inevitably develop lethal castration-resistant PCa (CRPC), which is also resistant to the next-generation AR signaling inhibitors. Most CRPCs maintain AR expression, and blocking AR signaling remains a main therapeutic approach. GATA2 is a pioneer transcription factor emerging as a key therapeutic target for PCa because it promotes AR expression and activation. While directly …

Clinical And Biological Factors With Prognostic Value In Acute Pancreatitis, Mihai Faur, Dan Dumitrescu, Dan Sabau, Ciprian Tanasescu, Dan Cretu, Denisa Tanasescu, Vlad Denis Constantin, Calin Mohor

Journal of Mind and Medical Sciences

Acute pancreatitis is an acute inflammatory process of the pancreas, which can remain localized at the level of the gland or can extend to the peripancreatic and retroperitoneal tissues. The use and interpretation of paraclinical examinations at the onset can predict the form of evolution of acute pancreatitis (mild or severe). Depending on the evolution, these data are useful in determining the type of surgical intervention that might be necessary based on severity.

We present a retrospective study consisting of 118 patients diagnosed and hospitalized with acute pancreatitis during 2016-2020 in the Surgery I section of the Sibiu County Emergency …

Upper Gastrointestinal Bleeding During The Covid-19 Pandemic; Particularities Of Diagnosis And Therapy, Adrian Silaghi, Bogdan Severus Gaspar, Dragos Epistatu, Daniela Gabriela Bălan, Ioana Păunică, Anca Silvia Dumitriu, Stana Paunica, Bogdan Socea, Vlad Denis Constantin

Journal of Mind and Medical Sciences

SARS-COV 2 recently caused a global pandemic, with the first case being reported in Romania in February 2020. Important restrictive measures were imposed, so that the addressability of patients to medical services decreased. Upper gastrointestinal bleeding had more severe forms of evolution at the time of presentation, which required additional methods of diagnosis and treatment. This is a retrospective study performed on 268 patients, which aims to evaluate the type and effectiveness of different treatment methods for upper gastrointestinal bleeding during the COVID 19 pandemic. Severity assessment was performed by measuring the Rockall score and additional methods of diagnosis. The …

Eating Disorders In Men: A Comprehensive Summary, Connor James Spratt, Liam Alexander Mackenzie Myles, Emanuele Maria Merlo

Journal of Mind and Medical Sciences

Eating disorders (EDs) have detrimental effects on an individual’s physical and mental health, along with significant interpersonal, social and economic effects. Furthermore, men who are suffering with an ED face unique challenges with this. Men suffering with EDs have historically received little attention within ED research, diagnosis and intervention. However, the number of men suffering with these issues is significant and growing. Understanding of EDs tend to ignore male experiences, meaning many are left to suffer in silence until the ED has developed to a critical point. However, many now recognize the need to understand the issues facing men suffering …

Cost Analysis Of Implementing An Exercise Program For Fall And Fracture Prevention In Older Adults On Proton Pump Inhibitor Therapy, Thomas Adam Wichelmann, Nhan Dang, David H. Kruchko, Sufyan Abdulmujeeb, Eli D. Ehrenpreis

Journal of Patient-Centered Research and Reviews

Purpose: Falls have significant financial impact. Proton pump inhibitor (PPI) therapy is associated with an increased risk of falls and fractures. Exercise programs have been shown to decrease risk of falls in the elderly population and are recommended by the U.S. Preventive Services Task Force for patients over age 65 to reduce falls. Our study aimed to explore the potential financial benefit of implementing three different Centers for Disease Control and Prevention-recommended exercise-based interventions for fall prevention (Tai Chi, Stepping On, and Otago Exercise Program) in ≥ 65-year-old patients on PPI therapy.

Methods: A Markov model was developed to predict …

Cronkhite-Canada Syndrome: First Case Report From Egypt And North Africa, Ahmed Elsayed Alzamzamy, Ashraf Aboubakr, Hussein H Okasha, Abeer Abdellatef, Shaimaa Elkholy, Mahmoudd Wahba, Mohamed Alboraie, Hussein Elsayed, Mohamed O Othman

Faculty, Staff and Students Publications

Background: Gastrointestinal (GI) polyposis is a rare condition in GI diseases. To date about 500 cases of Cronkhite-Canada syndrome (CCS) have been reported worldwide.

Case summary: We report a 60-year-old female patient who presented with dyspepsia, abdominal pain, and weight loss of 1-year duration. Her physical examination showed alopecia and onychodystrophy. Upper endoscopy revealed diffuse markedly thickened gastric mucosa involving the whole stomach with thickened gastric rugae and numerous polypoidal lesions. Histopathological examination showed marked hyperplasia of the foveolar glands with inflammatory cell infiltration. Endoscopic ultrasound showed a significantly hypertrophic mucosa and muscularis mucosa, while the submucosa and the muscularis …

Columnar Metaplasia Of The Esophagus Presenting As Iron Deficiency Anemia In Children With Neurologic Impairment Or Congenital Esophageal Atresia, Melissa R Van Arsdall, Supriya Nair, Lindsay M Moye, Trinh T Nguyen, Zeina M Saleh, J Marc Rhoads

Faculty, Staff and Student Publications

BACKGROUND Columnar metaplasia of the lower esophagus includes both gastric and intestinal metaplasia. Children with severe neurologic impairment and congenital esophageal atresia often have gastroesophageal reflux disease, which can lead to Barrett's esophagus, a form of lower esophageal columnar metaplasia and precursor to esophageal adenocarcinoma, with some, but not all, guidelines specifically requiring the presence of intestinal metaplasia for diagnosis. This case series illustrates how iron deficiency anemia may be the primary symptom of esophageal columnar metaplasia in such children and how upper endoscopy is essential in their initial and ongoing evaluation. CASE REPORT We review 5 cases of columnar …

Infant Behavioral State And Stool Microbiome In Infants Receiving Lactocaseibacillus Rhamnosus Gg In Formula: Randomized Controlled Trial, Robert J Shulman, Maciej Chichlowski, Fabiola Gutierrez Orozco, Cheryl L Harris, Jennifer L Wampler, Nicholas A Bokulich, Carol Lynn Berseth

Faculty, Staff and Students Publications

BACKGROUND: Our aim was to evaluate infant behavioral state, stool microbiome profile and calprotectin in infants with infantile colic receiving a partially hydrolyzed protein formula with or without added Lacticaseibacillus (formerly Lactobacillus) rhamnosus GG (LGG).

METHODS: In this single-center, double-blind, controlled, parallel, prospective study, term infants (14-28 days of age) identified with colic (using modified Wessel's criteria: cried and/or fussed ≥ 3 h/day for ≥ 3 days/week, in a one-week period) were randomized to receive one of two formulas over a three-week feeding period: marketed partially hydrolyzed cow's milk-based infant formula (PHF, n = 35) or a similar formula with …

Tryptophan Oxidation In Young Children With Environmental Enteric Dysfunction Classified By The Lactulose Rhamnose Ratio, Nirupama Shivakumar, Jean W Hsu, Sindhu Kashyap, Tinku Thomas, Anura V Kurpad, Farook Jahoor

Faculty, Staff and Students Publications

BACKGROUND: In young children, associations between linear growth faltering, environmental enteric dysfunction (EED), and the plasma kynurenine (Kyn)/tryptophan (Trp) ratio (KTR) have led to the proposal that higher Trp catabolism in response to intestinal/systemic inflammation limits Trp availability for protein synthesis, resulting in impaired growth.

OBJECTIVES: We sought to estimate the Trp oxidation rate and the Trp conversion rate to Kyn in young children with and without EED.

METHODS: Children aged 18-24 mo, from urban slums, were assigned to EED (n = 19) or no-EED (n = 26) groups on the basis of a urinary lactulose/rhamnose ratio (LRR) cutoff based …

Single-Cell Sequencing Reveals Trajectory Of Tumor-Infiltrating Lymphocyte States In Pancreatic Cancer, Aislyn Schalck, Donastas Sakellariou-Thompson, Marie-Andrée Forget, Emi Sei, Tara G Hughes, Alexandre Reuben, Shanshan Bai, Min Hu, Tapsi Kumar, Mark W Hurd, Matthew H G Katz, Ching-Wei D Tzeng, Shubham Pant, Milind Javle, David R Fogelman, Anirban Maitra, Cara L Haymaker, Michael P Kim, Nicholas E Navin, Chantale Bernatchez

Faculty, Staff and Student Publications

Pancreatic ductal adenocarcinoma (PDAC) has few effective treatments. Immunotherapy, an attractive alternative strategy, remains challenging with the lack of knowledge on the tumor-infiltrating lymphocyte (TIL) landscape in PDAC. To generate a reference of T-cell subpopulations, we profiled 80,000 T cells from 57 PDAC samples, 22 uninvolved/normal samples, and cultured TIL using single-cell transcriptomic and T-cell receptor analysis. These data revealed 20 cell states and heterogeneous distributions of TIL populations. The CD8+ TIL contained a putative transitional GZMK+ population based on T-cell receptor clonotype sharing, and cell-state trajectory analysis showed similarity to a GZMB+PRF1+ cytotoxic and a CXCL13+ dysfunctional population. Statistical …

Association Of Prediagnosis Obesity And Postdiagnosis Aspirin With Survival From Stage Iv Colorectal Cancer, Jennifer S Davis, Janelle C Chavez, Melissa Kok, Yazmin San Miguel, Hwa Young Lee, Henry Henderson, Michael J Overman, Van Morris, Bryan Kee, David Fogelman, Shailesh M Advani, Benny Johnson, Christine Parseghian, John Paul Shen, Arvind Dasari, Kenna R Shaw, Eduardo Vilar, Kanwal P Raghav, Imad Shureiqi, Robert A Wolff, Funda Meric-Bernstam, Dipen Maru, David G Menter, Scott Kopetz, Shine Chang

Faculty, Staff and Student Publications

IMPORTANCE: The potential relationship between obesity and colorectal cancer (CRC) outcome is poorly understood in patients with late-stage disease. Increased body mass index may negate aspirin use for cancer prevention, but its role as a factor on the effectiveness of postdiagnosis aspirin use is unclear.

OBJECTIVE: To evaluate how prediagnosis obesity and postdiagnosis aspirin use may be associated with overall survival in patients with late-stage colorectal cancer.

DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study used self-reported data from patients with metastatic or treatment-refractory disease who consented to a clinical protocol at MD Anderson Cancer Center, a large US cancer treatment …

Dietary Interventions For Gastroparesis: A Systematic Review, Debra Eseonu, Tanya Su, Keya Lee, Bruno P Chumpitazi, Robert J Shulman, Ruben Hernaez

Faculty, Staff and Students Publications

Gastroparesis (Gp) is a delay in gastric emptying in the absence of a mechanical obstruction and has the capacity to cause symptoms that significantly impact a patient's quality of life. Dietary interventions are the first-line treatment in Gp, but the efficacy of different diets is unclear. This systematic review seeks to determine the effectiveness of dietary interventions on clinical outcomes in Gp. A literature search of MEDLINE Ovid from 1 March 2008 to 1 October 2021 was conducted to identify randomized controlled trials, cohort studies, and cross-sectional studies that reported dietary interventions in Gp. From the initial search, 2789 studies …

Sex Differences In Clinical Outcomes And Biological Profiles In Systemic Sclerosis-Associated Interstitial Lung Disease: A Post-Hoc Analysis Of Two Randomised Controlled Trials, Elizabeth R Volkmann, Donald P Tashkin, Richard Silver, Carol Feghali Bostwick, Shervin Assassi, Deanna Baker Frost, Mei Leng, Holly Wilhalme, Grace Hyun Kim, Jonathan Goldin, Michael D Roth

Faculty, Staff and Student Publications

BACKGROUND: Observational studies have shown that men with systemic sclerosis have an increased risk of interstitial lung disease (ILD) and mortality compared with women. However, previous studies have not controlled for treatment effect or evaluated the biological mechanism or mechanisms underlying this sex difference. We aimed to compare ILD progression and long-term morbidity and mortality outcomes in male and female participants of two randomised controlled trials for systemic sclerosis-associated ILD.

METHODS: For this post-hoc analysis, data from all participants in the Scleroderma Lung Study (SLS) I and SLS II were analysed. The primary objective was to explore the effect of …