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Articles 31 - 60 of 164

Full-Text Articles in Gastroenterology

Facilitators And Barriers To Initiating And Completing Tuberculosis Preventive Treatment Among Children And Adolescents Living With Hiv In Uganda: A Qualitative Study Of Adolescents, Caretakers And Health Workers, Pauline Mary Amuge, Denis Ndekezi, Moses Mugerwa, Dickson Bbuye, Diana Antonia Rutebarika, Lubega Kizza, Christine Namugwanya, Angella Baita, Peter James Elyanu, Patricia Nahirya Ntege, Dithan Kiragga, Carol Birungi, Adeodata Rukyalekere Kekitiinwa, Agnes Kiragga, Moorine Peninah Sekadde, Nicole-Austin Salazar, Anna Maria Mandalakas, Philippa Musoke Aug 2024

Facilitators And Barriers To Initiating And Completing Tuberculosis Preventive Treatment Among Children And Adolescents Living With Hiv In Uganda: A Qualitative Study Of Adolescents, Caretakers And Health Workers, Pauline Mary Amuge, Denis Ndekezi, Moses Mugerwa, Dickson Bbuye, Diana Antonia Rutebarika, Lubega Kizza, Christine Namugwanya, Angella Baita, Peter James Elyanu, Patricia Nahirya Ntege, Dithan Kiragga, Carol Birungi, Adeodata Rukyalekere Kekitiinwa, Agnes Kiragga, Moorine Peninah Sekadde, Nicole-Austin Salazar, Anna Maria Mandalakas, Philippa Musoke

Faculty, Staff and Students Publications

INTRODUCTION: People living with HIV (PLHIV) have a 20-fold risk of tuberculosis (TB) disease compared to HIV-negative people. In 2021, the uptake of TB preventive treatment among the children and adolescents living with HIV at the Baylor-Uganda HIV clinic was 45%, which was below the national target of 90%. Minimal evidence documents the enablers and barriers to TB preventive treatment (TPT) initiation and completion among children and adolescents living with HIV(CALHIV). We explored the facilitators and barriers to TPT initiation and completion among CALHIV among adolescents aged 10-19years and caretakers of children below 18years.

METHODS: We conducted a qualitative study …


Infant And Adult Human Intestinal Enteroids Are Morphologically And Functionally Distinct, Grace O Adeniyi-Ipadeola, Julia D Hankins, Amal Kambal, Xi-Lei Zeng, Ketki Patil, Victoria Poplaski, Carolyn Bomidi, Hoa Nguyen-Phuc, Sandra L Grimm, Cristian Coarfa, Fabio Stossi, Sue E Crawford, Sarah E Blutt, Allison L Speer, Mary K Estes, Sasirekha Ramani Aug 2024

Infant And Adult Human Intestinal Enteroids Are Morphologically And Functionally Distinct, Grace O Adeniyi-Ipadeola, Julia D Hankins, Amal Kambal, Xi-Lei Zeng, Ketki Patil, Victoria Poplaski, Carolyn Bomidi, Hoa Nguyen-Phuc, Sandra L Grimm, Cristian Coarfa, Fabio Stossi, Sue E Crawford, Sarah E Blutt, Allison L Speer, Mary K Estes, Sasirekha Ramani

Faculty, Staff and Students Publications

UNLABELLED: Human intestinal enteroids (HIEs) are gaining recognition as physiologically relevant models of the intestinal epithelium. While HIEs from adults are used extensively in biomedical research, few studies have used HIEs from infants. Considering the dramatic developmental changes that occur during infancy, it is important to establish models that represent infant intestinal characteristics and physiological responses. We established jejunal HIEs from infant surgical samples and performed comparisons to jejunal HIEs from adults using RNA sequencing (RNA-Seq) and morphologic analyses. We then validated differences in key pathways through functional studies and determined whether these cultures recapitulate known features of the infant …


Low Vitamin D Levels In Patients With Symptoms Of Gastroparesis: Relationships With Nausea And Vomiting, Gastric Emptying And Gastric Myoelectrical Activity, Kenneth L Koch, Henry P Parkman, Katherine P Yates, Mark L Van Natta, Madhusudan Grover, Gianrico Farrugia, Thomas L Abell, Richard W Mccallum, Irene Sarosiek, Braden Kuo, Robert J Shulman, Laura Miriel, James Tonascia, Pankaj J Pasricha Aug 2024

Low Vitamin D Levels In Patients With Symptoms Of Gastroparesis: Relationships With Nausea And Vomiting, Gastric Emptying And Gastric Myoelectrical Activity, Kenneth L Koch, Henry P Parkman, Katherine P Yates, Mark L Van Natta, Madhusudan Grover, Gianrico Farrugia, Thomas L Abell, Richard W Mccallum, Irene Sarosiek, Braden Kuo, Robert J Shulman, Laura Miriel, James Tonascia, Pankaj J Pasricha

Faculty, Staff and Students Publications

Patients with gastroparesis (Gp) often have diets deficient in calories, electrolytes, and vitamins. Vitamin D levels have been reported to be low in some patients with Gp but has not been systematically studied.

AIMS: To determine vitamin D levels and relationships among symptoms, gastric emptying and gastric myoelectrical activity (GMA) in patients with symptoms of Gp.

METHODS: 25-hydroxy-vitamin D was measured in patients at enrollment in the Gastroparesis Clinical Consortium Registry. Gastroparesis Cardinal Symptoms Index (GCSI), gastric emptying, and GMA before and after water load satiety test (WLST) were measured. GMA, expressed as percentage distribution of activity in normal and …


Association Between Intravenous Fluids During Labor And Primary Postpartum Hemorrhage: A Retrospective Cohort Study, Belinda R Bruce, Heather L Shepherd, Saleem Ahmed Khan, Charlotte R Haunton, Julie Leask, Bradley S De Vries Aug 2024

Association Between Intravenous Fluids During Labor And Primary Postpartum Hemorrhage: A Retrospective Cohort Study, Belinda R Bruce, Heather L Shepherd, Saleem Ahmed Khan, Charlotte R Haunton, Julie Leask, Bradley S De Vries

Faculty, Staff and Student Publications

INTRODUCTION: There is a major research gap relating to the impact of intravenous (IV) fluids administration during labor on maternal and neonatal outcomes. It is biologically plausible that a relationship between volume of IV fluids and primary postpartum hemorrhage (PPH) exists. The primary objective of this study was to evaluate whether the administration of high-volume IV fluids during labor (≥ 2500 mL) increases the risk of primary PPH and other adverse outcomes for women with a term, singleton pregnancy, in comparison to low-volume IV fluids during labor (<2500 >mL).

MATERIAL AND METHODS: A retrospective cohort study was conducted at a …


Use Of Pancreatic Endotherapy In Patients With Chronic Pancreatitis: Results From A Multicenter Cohort Study In The United States, Samuel Han, Darwin L Conwell, Jeffrey J Easler, Yunlong Yang, Dana K Andersen, William E Fisher, Evan L Fogel, Chris Forsmark, Phil A Hart, Steven J Hughes, Liang Li, Stephen J Pandol, Walter G Park, Jose Serrano, Stephen K Van Den Eeden, Santhi Swaroop Vege, Dhiraj Yadav, Consortium For The Study Of Chronic Pancreatitis, Diabetes, And Pancreatic Cancer Aug 2024

Use Of Pancreatic Endotherapy In Patients With Chronic Pancreatitis: Results From A Multicenter Cohort Study In The United States, Samuel Han, Darwin L Conwell, Jeffrey J Easler, Yunlong Yang, Dana K Andersen, William E Fisher, Evan L Fogel, Chris Forsmark, Phil A Hart, Steven J Hughes, Liang Li, Stephen J Pandol, Walter G Park, Jose Serrano, Stephen K Van Den Eeden, Santhi Swaroop Vege, Dhiraj Yadav, Consortium For The Study Of Chronic Pancreatitis, Diabetes, And Pancreatic Cancer

Faculty, Staff and Students Publications

BACKGROUND AND AIMS: Although pancreatic endotherapy (PET) is commonly used for treating adverse events of chronic pancreatitis, data on the frequency and factors associated with the use of PET are limited. Our aim was to define the use of and factors predictive for receiving PET in a well-characterized chronic pancreatitis cohort.

METHODS: This is a cross-sectional analysis of data from PROCEED, a multicenter U.S. cohort study of chronic pancreatitis. PET modalities primarily consisted of ERCP. A treatment course was defined as the number of sessions performed for a specific indication. A repeat course was defined as PET >1 year after …


Genomic Insights Into Pediatric Intestinal Inflammatory And Eosinophilic Disorders Using Single-Cell Rna-Sequencing., Marissa R. Keever-Keigher, Lisa Harvey, Veronica Williams, Carrie A Vyhlidal, Atif A Ahmed, Jeffrey J. Johnston, Daniel A. Louiselle, Elin Grundberg, Tomi Pastinen, Craig A. Friesen, Rachel Chevalier, Craig Smail, Valentina Shakhnovich Aug 2024

Genomic Insights Into Pediatric Intestinal Inflammatory And Eosinophilic Disorders Using Single-Cell Rna-Sequencing., Marissa R. Keever-Keigher, Lisa Harvey, Veronica Williams, Carrie A Vyhlidal, Atif A Ahmed, Jeffrey J. Johnston, Daniel A. Louiselle, Elin Grundberg, Tomi Pastinen, Craig A. Friesen, Rachel Chevalier, Craig Smail, Valentina Shakhnovich

Manuscripts, Articles, Book Chapters and Other Papers

INTRODUCTION: Chronic inflammation of the gastrointestinal tissues underlies gastrointestinal inflammatory disorders, leading to tissue damage and a constellation of painful and debilitating symptoms. These disorders include inflammatory bowel diseases (Crohn's disease and ulcerative colitis), and eosinophilic disorders (eosinophilic esophagitis and eosinophilic duodenitis). Gastrointestinal inflammatory disorders can often present with overlapping symptoms necessitating the use of invasive procedures to give an accurate diagnosis.

METHODS: This study used peripheral blood mononuclear cells from individuals with Crohn's disease, ulcerative colitis, eosinophilic esophagitis, and eosinophilic duodenitis to better understand the alterations to the transcriptome of individuals with these diseases and identify potential markers of …


Dietary Acculturation Is Associated With Altered Gut Microbiome, Circulating Metabolites, And Cardiovascular Disease Risk In Us Hispanics And Latinos: Results From Hchs/Sol, Yi Wang, Guo-Chong Chen, Zheng Wang, Kai Luo, Yanbo Zhang, Yang Li, Amanda C Mcclain, Marta M Jankowska, Krista M Perreira, Josiemer Mattei, Carmen R Isasi, Maria M Llabre, Bharat Thyagarajan, Martha L Daviglus, Linda Van Horn, David Goldsztajn Farelo, Luis E Maldonado, Steven R Levine, Bing Yu, Eric Boerwinkle, Rob Knight, Robert D Burk, Robert C Kaplan, Qibin Qi, Brandilyn A Peters Jul 2024

Dietary Acculturation Is Associated With Altered Gut Microbiome, Circulating Metabolites, And Cardiovascular Disease Risk In Us Hispanics And Latinos: Results From Hchs/Sol, Yi Wang, Guo-Chong Chen, Zheng Wang, Kai Luo, Yanbo Zhang, Yang Li, Amanda C Mcclain, Marta M Jankowska, Krista M Perreira, Josiemer Mattei, Carmen R Isasi, Maria M Llabre, Bharat Thyagarajan, Martha L Daviglus, Linda Van Horn, David Goldsztajn Farelo, Luis E Maldonado, Steven R Levine, Bing Yu, Eric Boerwinkle, Rob Knight, Robert D Burk, Robert C Kaplan, Qibin Qi, Brandilyn A Peters

Faculty, Staff and Student Publications

Background: Dietary acculturation, or adoption of dominant culture diet by migrant groups, influences human health. We aimed to examine dietary acculturation and its relationships with cardiovascular disease (CVD), gut microbiota, and blood metabolites among US Hispanic and Latino adults.

Methods: In the HCHS/SOL (Hispanic Community Health Study/Study of Latinos), US exposure was defined by years in the United States (50 states and Washington, DC) and US nativity. A dietary acculturation pattern was derived from 14 172 participants with two 24-hour dietary recalls at baseline (2008-2011) using least absolute shrinkage and selection operator regression, with food groups as predictors of US …


Juvenile Polyposis Syndrome In Children: The Impact Of Smad4 And Bmpr1a Mutations On Clinical Phenotype And Polyp Burden., Shlomi Cohen, Anat Yerushalmy-Feler, Isabel Rojas, Claudia Phen, David A. Rudnick, Colleen B. Flahive, Steven H. Erdman, Ramit Magen-Rimon, Ivana Copova, Thomas M. Attard, Andrew Latchford, Warren Hyer Jul 2024

Juvenile Polyposis Syndrome In Children: The Impact Of Smad4 And Bmpr1a Mutations On Clinical Phenotype And Polyp Burden., Shlomi Cohen, Anat Yerushalmy-Feler, Isabel Rojas, Claudia Phen, David A. Rudnick, Colleen B. Flahive, Steven H. Erdman, Ramit Magen-Rimon, Ivana Copova, Thomas M. Attard, Andrew Latchford, Warren Hyer

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: A constitutional disease-causing variant (DCV) in the SMAD4 or BMPR1A genes is present in 40%-60% of patients with juvenile polyposis syndrome (JPS). The aim of this study was to characterize the clinical course and polyp burden in children with DCV-positive JPS compared to DCV-negative JPS.

METHODS: Demographic, clinical, genetic, and endoscopic data of children with JPS were compiled from eight international centers in the ESPHGAN/NASPGHAN polyposis working group.

RESULTS: A total of 124 children with JPS were included: 69 (56%) DCV-negative and 55 (44%) DCV-positive (53% SMAD4 and 47% BMPR1A) with a median (interquartile range) follow-up of 4 (2.8-6.4) …


The Time-Dependent Association Between Irritable Bowel Syndrome And All-Cause And Cause-Specific Mortality: A Prospective Cohort Study Within The Uk Biobank, Fangyu Li, Yukiko Yano, Lola Étiévant, Carrie R Daniel, Shreela V Sharma, Eric L Brown, Ruosha Li, Erikka Loftfield, Qing Lan, Rashmi Sinha, Baharak Moshiree, Maki Inoue-Choi, Emily Vogtmann Jul 2024

The Time-Dependent Association Between Irritable Bowel Syndrome And All-Cause And Cause-Specific Mortality: A Prospective Cohort Study Within The Uk Biobank, Fangyu Li, Yukiko Yano, Lola Étiévant, Carrie R Daniel, Shreela V Sharma, Eric L Brown, Ruosha Li, Erikka Loftfield, Qing Lan, Rashmi Sinha, Baharak Moshiree, Maki Inoue-Choi, Emily Vogtmann

Faculty, Staff and Student Publications

Introduction: Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal disorders, but few studies have evaluated mortality risks among individuals with IBS. We explored the association between IBS and all-cause and cause-specific mortality in the UK Biobank.

Methods: We included 502,369 participants from the UK Biobank with mortality data through 2022. IBS was defined using baseline self-report and linkage to primary care or hospital admission data. We estimated hazard ratios (HRs) and 95% confidence intervals (CIs) for all-cause and cause-specific mortality using multivariable Cox proportional hazards regression models within partitioned follow-up time categories (0-5, >5-10, and >10 …


The Role Of Transoral Incisionless Fundoplication (Tif) In The Management Of Gastroesophageal Reflux Disease (Gerd) Following Peroral Endoscopic Myotomy (Poem): A Pilot, Prospective, Patient-Driven Study, Fares Ayoub, Tara Keihanian, Noor Zabad, Salmaan Jawaid, Kalpesh Patel, Mohamed O Othman Jul 2024

The Role Of Transoral Incisionless Fundoplication (Tif) In The Management Of Gastroesophageal Reflux Disease (Gerd) Following Peroral Endoscopic Myotomy (Poem): A Pilot, Prospective, Patient-Driven Study, Fares Ayoub, Tara Keihanian, Noor Zabad, Salmaan Jawaid, Kalpesh Patel, Mohamed O Othman

Faculty, Staff and Students Publications

BACKGROUND: Gastroesophageal reflux (GERD) is a concern after peroral endoscopic myotomy (POEM). Transoral incisionless fundoplication (TIF) has been recently described as a possible therapy for post-POEM GERD in case series.

METHODS: We prospectively enrolled patients undergoing POEM who agreed to participate in objective post-procedure GERD evaluation. Patients with objective evidence of GERD and suitable anatomy were offered TIF vs. proton pump inhibitor (PPI) only. Patients who underwent TIF were compared to those on PPI-only therapy after follow-up.

RESULTS: Of 21 enrolled POEM patients with objective testing, GERD was found in 11 (52%). Of those eligible for TIF, 4 (40%) opted …


Methylthioadenosine Phosphorylase Genomic Loss In Advanced Gastrointestinal Cancers, Natalie Y L Ngoi, Tin-Yun Tang, Catia F Gaspar, Dean C Pavlick, Gregory M Buchold, Emma L Scholefield, Vamsi Parimi, Richard S P Huang, Tyler Janovitz, Natalie Danziger, Mia A Levy, Shubham Pant, Anaemy Danner De Armas, David Kumpula, Jeffrey S Ross, Milind Javle, Jordi Rodon Ahnert Jun 2024

Methylthioadenosine Phosphorylase Genomic Loss In Advanced Gastrointestinal Cancers, Natalie Y L Ngoi, Tin-Yun Tang, Catia F Gaspar, Dean C Pavlick, Gregory M Buchold, Emma L Scholefield, Vamsi Parimi, Richard S P Huang, Tyler Janovitz, Natalie Danziger, Mia A Levy, Shubham Pant, Anaemy Danner De Armas, David Kumpula, Jeffrey S Ross, Milind Javle, Jordi Rodon Ahnert

Faculty, Staff and Student Publications

BACKGROUND: One of the most common sporadic homozygous deletions in cancers is 9p21 loss, which includes the genes methylthioadenosine phosphorylase (MTAP), CDKN2A, and CDKN2B, and has been correlated with worsened outcomes and immunotherapy resistance. MTAP-loss is a developing drug target through synthetic lethality with MAT2A and PMRT5 inhibitors. The purpose of this study is to investigate the prevalence and genomic landscape of MTAP-loss in advanced gastrointestinal (GI) tumors and investigate its role as a prognostic biomarker.

MATERIALS AND METHODS: We performed next-generation sequencing and comparative genomic and clinical analysis on an extensive cohort of 64 860 tumors comprising 5 GI …


Efficacy And Safety Of Adagrasib Plus Cetuximab In Patients With Krasg12c-Mutated Metastatic Colorectal Cancer, Rona Yaeger, Nataliya V Uboha, Meredith S Pelster, Tanios S Bekaii-Saab, Minal Barve, Joel Saltzman, Joshua K Sabari, Julio A Peguero, Andrew Scott Paulson, Pasi A Jänne, Marcia Cruz-Correa, Kenna Anderes, Karen Velastegui, Xiaohong Yan, Hirak Der-Torossian, Samuel J Klempner, Scott E Kopetz Jun 2024

Efficacy And Safety Of Adagrasib Plus Cetuximab In Patients With Krasg12c-Mutated Metastatic Colorectal Cancer, Rona Yaeger, Nataliya V Uboha, Meredith S Pelster, Tanios S Bekaii-Saab, Minal Barve, Joel Saltzman, Joshua K Sabari, Julio A Peguero, Andrew Scott Paulson, Pasi A Jänne, Marcia Cruz-Correa, Kenna Anderes, Karen Velastegui, Xiaohong Yan, Hirak Der-Torossian, Samuel J Klempner, Scott E Kopetz

Faculty, Staff and Student Publications

Adagrasib, an irreversible, selective KRASG12C inhibitor, may be an effective treatment in KRASG12C-mutated colorectal cancer, particularly when combined with an anti-EGFR antibody. In this analysis of the KRYSTAL-1 trial, patients with previously treated KRASG12C-mutated unresectable or metastatic colorectal cancer received adagrasib (600 mg twice daily) plus cetuximab. The primary endpoint was objective response rate (ORR) by blinded independent central review. Ninety-four patients received adagrasib plus cetuximab. With a median follow-up of 11.9 months, ORR was 34.0%, disease control rate was 85.1%, and median duration of response was 5.8 months (95% confidence interval [CI], 4.2-7.6). Median progression-free survival was 6.9 months …


Predicting Mortality Within 1 Year Of Art Initiation In Children And Adolescents Living With Hiv In Sub-Saharan Africa: A Retrospective Observational Cohort Study, Alexander Kay, Bhekumusa Lukhele, Sandile Dlamini, Abigail Seeger, Phumzile Dlamini, Sandile Ndabezitha, Nobuhle Mthethwa, Teresa Steffy, Lilian Komba, Pauline Amuge, Eunice Ketangenyi, Peter Elyanu, Adamson Munthali, Amos Msekandiana, Yvonne Maldonado, Elizabeth Chiao, Adeodata Kekitiinwa, Lineo Thahane, Lumumba Mwita, H Lester Kirchner, Anna Maria Mandalakas Jun 2024

Predicting Mortality Within 1 Year Of Art Initiation In Children And Adolescents Living With Hiv In Sub-Saharan Africa: A Retrospective Observational Cohort Study, Alexander Kay, Bhekumusa Lukhele, Sandile Dlamini, Abigail Seeger, Phumzile Dlamini, Sandile Ndabezitha, Nobuhle Mthethwa, Teresa Steffy, Lilian Komba, Pauline Amuge, Eunice Ketangenyi, Peter Elyanu, Adamson Munthali, Amos Msekandiana, Yvonne Maldonado, Elizabeth Chiao, Adeodata Kekitiinwa, Lineo Thahane, Lumumba Mwita, H Lester Kirchner, Anna Maria Mandalakas

Faculty, Staff and Students Publications

BACKGROUND: Differentiated service delivery (DSD) for children and adolescents living with HIV can improve targeted resource use. We derived a mortality prediction score to guide clinical decision making for children and adolescents living with HIV.

METHODS: Data for this retrospective observational cohort study were evaluated for all children and adolescents living with HIV and initiating antiretroviral therapy (ART); aged 0-19 years; and enrolled at Baylor clinics in Eswatini, Malawi, Lesotho, Tanzania, and Uganda between 2005 and 2020. Data for clinical prediction, including anthropometric values, physical examination, ART, WHO stage, and laboratory tests were captured at ART initiation. Backward stepwise variable …


Performance Of A Stool-Based Quantitative Pcr Assay For The Diagnosis Of Tuberculosis In Adolescents And Adults: A Multinational, Prospective Diagnostic Accuracy Study, Alexander Kay, Anca Vasiliu, Lucia Carratala-Castro, Bariki Mtafya, Jose Euberto Mendez Reyes, Nontobeko Maphalala, Shilzia Munguambe, Durbbin Mulengwa, Tara Ness, Belen Saavedra, Jason Bacha, Gugu Maphalala, Rojelio Mejia, Godwin Mtetwa, Sozinho Acacio, Patricia Manjate, Edson Mambuque, Nosisa Shiba, Nokwanda Kota, Mangaliso Ziyane, Nyanda Elias Ntinginya, Christoph Lange, H Lester Kirchner, Andrew R Dinardo, Alberto L Garcia-Basteiro, Anna Maria Mandalakas, Stool4tb Global Partnership May 2024

Performance Of A Stool-Based Quantitative Pcr Assay For The Diagnosis Of Tuberculosis In Adolescents And Adults: A Multinational, Prospective Diagnostic Accuracy Study, Alexander Kay, Anca Vasiliu, Lucia Carratala-Castro, Bariki Mtafya, Jose Euberto Mendez Reyes, Nontobeko Maphalala, Shilzia Munguambe, Durbbin Mulengwa, Tara Ness, Belen Saavedra, Jason Bacha, Gugu Maphalala, Rojelio Mejia, Godwin Mtetwa, Sozinho Acacio, Patricia Manjate, Edson Mambuque, Nosisa Shiba, Nokwanda Kota, Mangaliso Ziyane, Nyanda Elias Ntinginya, Christoph Lange, H Lester Kirchner, Andrew R Dinardo, Alberto L Garcia-Basteiro, Anna Maria Mandalakas, Stool4tb Global Partnership

Faculty, Staff and Students Publications

BACKGROUND: Despite increasing availability of rapid molecular tests for the diagnosis of tuberculosis in high-burden settings, many people with tuberculosis are undiagnosed. Reliance on sputum as the primary specimen for tuberculosis diagnostics contributes to this diagnostic gap. We evaluated the diagnostic accuracy and additive yield of a novel stool quantitative PCR (qPCR) assay for the diagnosis of tuberculosis in three countries in Africa with high tuberculosis burdens.

METHODS: We undertook a prospective diagnostic accuracy study in Eswatini, Mozambique, and Tanzania from Sept 21, 2020, to Feb 2, 2023, to compare the diagnostic accuracy for tuberculosis of a novel stool qPCR …


Genomic Landscape Of Lynch Syndrome Colorectal Neoplasia Identifies Shared Mutated Neoantigens For Immunoprevention, Ana M Bolivar, Fahriye Duzagac, Nan Deng, Laura Reyes-Uribe, Kyle Chang, Wenhui Wu, Charles M Bowen, Melissa W Taggart, Selvi Thirumurthi, Patrick M Lynch, Y Nancy You, Jesus Rodriguez-Pascual, Steven M Lipkin, Scott Kopetz, Paul Scheet, Gregory A Lizee, Alexandre Reuben, Krishna M Sinha, Eduardo Vilar May 2024

Genomic Landscape Of Lynch Syndrome Colorectal Neoplasia Identifies Shared Mutated Neoantigens For Immunoprevention, Ana M Bolivar, Fahriye Duzagac, Nan Deng, Laura Reyes-Uribe, Kyle Chang, Wenhui Wu, Charles M Bowen, Melissa W Taggart, Selvi Thirumurthi, Patrick M Lynch, Y Nancy You, Jesus Rodriguez-Pascual, Steven M Lipkin, Scott Kopetz, Paul Scheet, Gregory A Lizee, Alexandre Reuben, Krishna M Sinha, Eduardo Vilar

Faculty, Staff and Student Publications

Background & aims: Lynch syndrome (LS) carriers develop mismatch repair-deficient neoplasia with high neoantigen (neoAg) rates. No detailed information on targetable neoAgs from LS precancers exists, which is crucial for vaccine development and immune-interception strategies. We report a focused somatic mutation and frameshift-neoAg landscape of microsatellite loci from colorectal polyps without malignant potential (PWOMP), precancers, and early-stage cancers in LS carriers.

Methods: We generated paired whole-exome and transcriptomic sequencing data from 8 colorectal PWOMP, 41 precancers, 8 advanced precancers, and 12 early-stage cancers of 43 LS carriers. A computational pipeline was developed to predict, rank, and prioritize the top 100 …


Gut Development Following Insulin-Like Growth Factor-1 Supplementation To Preterm Pigs, Martin Bo Rasmussen, Kristine Holgersen, Stanislava Pankratova, Ole Bæk, Douglas G Burrin, Thomas Thymann, Per Torp Sangild May 2024

Gut Development Following Insulin-Like Growth Factor-1 Supplementation To Preterm Pigs, Martin Bo Rasmussen, Kristine Holgersen, Stanislava Pankratova, Ole Bæk, Douglas G Burrin, Thomas Thymann, Per Torp Sangild

Faculty, Staff and Students Publications

BACKGROUND: Reduced insulin-like growth factor-1 (IGF-1) levels may contribute to impaired organ development in preterm infants. Using preterm pigs as a model, we hypothesized that IGF-1 supplementation improves health and gut development during the first three weeks of life.

METHODS: First, clinical and organ endpoints were compared between artificially-reared, cesarean-delivered preterm pigs and vaginally-delivered, sow-reared term pigs at 5, 9 and 19 days. Next, preterm pigs were treated with recombinant human IGF-1 for 19 days (2.25 mg/kg/day, systemically).

RESULTS: Relative to term pigs, preterm pigs had lower body weight, fat, bone contents, relative weights of liver and spleen and a …


Somatic Mutations Of Esophageal Adenocarcinoma: A Comparison Between Black And White Patients, Hyeyeun Lim, Marie-Claude Gingras, Jing Zhao, Jinyoung Byun, Patricia D Castro, Spiridon Tsavachidis, Jianhong Hu, Harshavardhan Doddapaneni, Yi Han, Donna M Muzny, Richard A Gibbs, Christopher I Amos, Aaron P Thrift Apr 2024

Somatic Mutations Of Esophageal Adenocarcinoma: A Comparison Between Black And White Patients, Hyeyeun Lim, Marie-Claude Gingras, Jing Zhao, Jinyoung Byun, Patricia D Castro, Spiridon Tsavachidis, Jianhong Hu, Harshavardhan Doddapaneni, Yi Han, Donna M Muzny, Richard A Gibbs, Christopher I Amos, Aaron P Thrift

Faculty, Staff and Students Publications

Esophageal adenocarcinoma is the most common histological subtype of esophageal cancer in Western countries and shows poor prognosis with rapid growth. EAC is characterized by a strong male predominance and racial disparity. EAC is up to fivefold more common among Whites than Blacks, yet Black patients with EAC have poorer survival rates. The racial disparity remains largely unknown, and there is limited knowledge of mutations in EAC regarding racial disparities. We used whole-exome sequencing to show somatic mutation profiles derived from tumor samples from 18 EAC male patients. We identified three molecular subgroups based on the pre-defined esophageal cancer-specific mutational …


Hepatocellular Carcinoma Screening In A Contemporary Cohort Of At-Risk Patients, Darine Daher, Karim Seif El Dahan, Nicole E Rich, Nabihah Tayob, Vincent Merrill, Daniel Q Huang, Ju Dong Yang, Anand V Kulkarni, Fasiha Kanwal, Jorge Marrero, Neehar Parikh, Amit G Singal Apr 2024

Hepatocellular Carcinoma Screening In A Contemporary Cohort Of At-Risk Patients, Darine Daher, Karim Seif El Dahan, Nicole E Rich, Nabihah Tayob, Vincent Merrill, Daniel Q Huang, Ju Dong Yang, Anand V Kulkarni, Fasiha Kanwal, Jorge Marrero, Neehar Parikh, Amit G Singal

Faculty, Staff and Students Publications

IMPORTANCE: Cohort studies demonstrating an association of hepatocellular carcinoma (HCC) screening with reduced mortality are prone to lead-time and length-time biases.

OBJECTIVE: To characterize the clinical benefits of HCC screening, adjusting for lead-time and length-time biases, in a diverse, contemporary cohort of at-risk patients.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study of patients with HCC was conducted between January 2008 and December 2022 at 2 large US health systems. Data analysis was performed from September to November 2023.

MAIN OUTCOMES AND MEASURES: The primary outcome was screen-detected HCC, defined by abnormal screening-intent abdominal imaging or α-fetoprotein level within 6 …


Development Of A Follow-Up Measure To Ensure Complete Screening For Colorectal Cancer, Elizabeth L Ciemins, Jeff T Mohl, Carlos A Moreno, Francis Colangelo, Robert A Smith, Mary Barton Mar 2024

Development Of A Follow-Up Measure To Ensure Complete Screening For Colorectal Cancer, Elizabeth L Ciemins, Jeff T Mohl, Carlos A Moreno, Francis Colangelo, Robert A Smith, Mary Barton

Faculty, Staff and Student Publications

IMPORTANCE: The current quality performance measure for colorectal cancer (CRC) screening is limited to initial screening. Despite low rates, there is no measure for appropriate follow-up with colonoscopy after receipt of an abnormal result of a stool-based screening test (SBT) for CRC. A quality performance measure is needed.

OBJECTIVE: To develop and test a quality performance measure for follow-up colonoscopy within 6 months of an abnormal result of an SBT for CRC.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective quality improvement study examined data from January 1, 2016, to December 31, 2020, with 2018 plus 6 months of follow-up as the …


A Study Of Dietary Patterns Derived By Cluster Analysis And Their Association With Metabolic Dysfunction-Associated Steatotic Liver Disease Severity Among Hispanic Patients, Xiaotao Zhang, Carrie R Daniel, Valeria Soltero, Ximena Vargas, Shilpa Jain, Fasiha Kanwal, Aaron P Thrift, Maya Balakrishnan Mar 2024

A Study Of Dietary Patterns Derived By Cluster Analysis And Their Association With Metabolic Dysfunction-Associated Steatotic Liver Disease Severity Among Hispanic Patients, Xiaotao Zhang, Carrie R Daniel, Valeria Soltero, Ximena Vargas, Shilpa Jain, Fasiha Kanwal, Aaron P Thrift, Maya Balakrishnan

Faculty, Staff and Student Publications

Introduction: Diet is a modifiable metabolic dysfunction-associated steatotic liver disease (MASLD) risk factor, but few studies have been conducted among Hispanic patients, despite the fact that MASLD prevalence and severity are highest among this ethnic subgroup. We aimed to identify prevalent dietary patterns among Hispanic patients using cluster analysis and to investigate associations with MASLD severity.

Methods: This cross-sectional analysis included 421 Harris County MASLD Cohort participants who self-reported Hispanic ethnicity and completed baseline food frequency questionnaires. All included patients had MASLD, diagnosed per standard clinical criteria. K-means analysis was used to identify clusters of patients sharing similar dietary habits. …


Unsatisfactory Fecal Immunochemical Tests For Colorectal Cancer Screening: Prevalence, Reasons, And Subsequent Testing, Po-Hong Liu, Rasmi G Nair, Celette Sugg Skinner, Caitlin C Murphy, Eric J Kim, Cynthia Ortiz, Lei Wang, Ellen Hu, Jacquelyn M Lykken, Theodore R Levin, Beverly B Green, Erin E Hahn, Noel Santini, Ethan A Halm Feb 2024

Unsatisfactory Fecal Immunochemical Tests For Colorectal Cancer Screening: Prevalence, Reasons, And Subsequent Testing, Po-Hong Liu, Rasmi G Nair, Celette Sugg Skinner, Caitlin C Murphy, Eric J Kim, Cynthia Ortiz, Lei Wang, Ellen Hu, Jacquelyn M Lykken, Theodore R Levin, Beverly B Green, Erin E Hahn, Noel Santini, Ethan A Halm

Faculty, Staff and Student Publications

BACKGROUND: Fecal immunochemical test (FIT) is an effective colorectal cancer screening modality. Little is known about prevalence, reasons, and testing after unsatisfactory FIT, or a FIT that cannot be processed by the laboratory due to inadequate stool specimen or incomplete labeling.

METHODS: Our retrospective cohort study examined unsatisfactory FIT among average-risk individuals aged 50-74 years in a large, integrated, safety-net health system who completed an index FIT from 2010 to 2019. We determined prevalence of unsatisfactory FIT and categorized reasons hierarchically. We used multivariable logistic regression models to identify factors associated with: (i) unsatisfactory FIT; and (ii) subsequent testing within …


Adverse Metabolic Phenotypes In Parenterally Fed Neonatal Pigs Do Not Persist Into Adolescence, Sarah K Elefson, Barbara Stoll, Teresa A Davis, Marta L Fiorotto, Samer W El-Kadi, Kenneth Genovese, Thomas Thymann, Per T Sangild, Douglas G Burrin Feb 2024

Adverse Metabolic Phenotypes In Parenterally Fed Neonatal Pigs Do Not Persist Into Adolescence, Sarah K Elefson, Barbara Stoll, Teresa A Davis, Marta L Fiorotto, Samer W El-Kadi, Kenneth Genovese, Thomas Thymann, Per T Sangild, Douglas G Burrin

Faculty, Staff and Students Publications

BACKGROUND: Nutrition during fetal and neonatal life is an important determinant for the risk of adult-onset diseases, especially type 2 diabetes and obesity.

OBJECTIVES: We aimed to determine whether total parenteral nutrition (TPN) compared with enteral formula feeding [enteral nutrition (EN)] in term piglets during the first 2 wk after birth would increase the long-term (5-mo) development of metabolic syndrome phenotypes with adverse glucose homeostasis, fatty liver disease, and obesity.

METHODS: Neonatal female pigs were administered TPN (n = 12) or fed enterally with a liquid enteral milk-replacer formula (EN, n = 12) for 14 d. After transitioning TPN pigs …


Simultaneous Detection Of Helicobacter Pylori Infection Comparing Between White Light And Image-Enhanced Endoscopy, Boonyaorn Chatrangsun, Natsuda Aumpan, Bubpha Pornthisarn, Soonthorn Chonprasertsuk, Sith Siramolpiwat, Patommatat Bhanthumkomol, Pongjarat Nunanan, Navapan Issariyakulkarn, Varocha Mahachai, Yoshio Yamaoka, Ratha-Korn Vilaichone Jan 2024

Simultaneous Detection Of Helicobacter Pylori Infection Comparing Between White Light And Image-Enhanced Endoscopy, Boonyaorn Chatrangsun, Natsuda Aumpan, Bubpha Pornthisarn, Soonthorn Chonprasertsuk, Sith Siramolpiwat, Patommatat Bhanthumkomol, Pongjarat Nunanan, Navapan Issariyakulkarn, Varocha Mahachai, Yoshio Yamaoka, Ratha-Korn Vilaichone

Faculty, Staff and Students Publications

BACKGROUND: Helicobacter pylori (H. pylori) is associated with gastric cancer. Early and accurate diagnosis of H. pylori infection can reduce risk of gastric cancer. Conventional white light imaging (WLI) and image-enhanced endoscopic (IEE) techniques such as narrow-band imaging (NBI), linked color imaging (LCI) and blue laser imaging (BLI) plays pivotal role in H. pylori diagnosis. This study aimed to determine diagnostic performance of real-time endoscopy between WLI and other IEE techniques for diagnosis of H. pylori infection.

METHODS: This prospective study compared endoscopic images by gastroscopy using WLI and IEE techniques (LCI, Magnifying-BLI, and Magnifying-NBI) at Thammasat University Hospital, Thailand …


Patient Perceptions On The Advancement Of Noninvasive Prenatal Testing For Sickle Cell Disease Among Black Women In The United States, Shameka P Thomas, Faith E Fletcher, Rachele Willard, Tiara Monet Ranson, Vence L Bonham Jan 2024

Patient Perceptions On The Advancement Of Noninvasive Prenatal Testing For Sickle Cell Disease Among Black Women In The United States, Shameka P Thomas, Faith E Fletcher, Rachele Willard, Tiara Monet Ranson, Vence L Bonham

Center for Medical Ethics and Health Policy Staff Publications

Background: Noninvasive prenatal testing (NIPT) designed to screen for fetal genetic conditions, is increasingly being implemented as a part of routine prenatal care screening in the United States (US). However, these advances in reproductive genetic technology necessitate empirical research on the ethical and social implications of NIPT among populations underrepresented in genetic research, particularly Black women with sickle cell disease (SCD).

Methods: Forty (N = 40) semi-structured interviews were conducted virtually with Black women in the US (19 participants with SCD; 21 participants without SCD) from June 2021 to January 2022. We employed a qualitative approach to examine the …


Gambian Mothers Lack Obstetric Danger Sign Knowledge, But Educational Intervention Shows Promise, Kara Shannon, Jocelyn Burridge, Brodus Franklin, Sheena Bhushan, Susan Hilsenbeck, Elena V Petrova, James N'Dow, Ibezimako Iwuh, Sharmila Anandasabapathy, Jeffrey P Wilkinson Jan 2024

Gambian Mothers Lack Obstetric Danger Sign Knowledge, But Educational Intervention Shows Promise, Kara Shannon, Jocelyn Burridge, Brodus Franklin, Sheena Bhushan, Susan Hilsenbeck, Elena V Petrova, James N'Dow, Ibezimako Iwuh, Sharmila Anandasabapathy, Jeffrey P Wilkinson

Faculty, Staff and Students Publications

BACKGROUND: The Gambia has the 12th highest maternal mortality rate in the world, with 80% of deaths resulting from avoidable causes. Unawareness of pregnancy danger signs (DS) has been shown to be a barrier to seeking obstetric care, while app-based education intervention has shown promise.

OBJECTIVE: We aim to assess patient awareness of DS, identify barriers to awareness, and evaluate potential for implementing smartphone-based technologies for education.

METHODS: A cross-sectional semi-structured survey was administered to Gambian women (n = 100) across five hospitals/health centers. Data and informed consent were collected via an online survey portal. Analysis included bivariate analysis and …


Recent Trends In The Incidence Of Gastric Cancer In The United States, Kyle S Liu, Syed Ahsan Raza, Hashem B El-Serag, Aaron P Thrift Jan 2024

Recent Trends In The Incidence Of Gastric Cancer In The United States, Kyle S Liu, Syed Ahsan Raza, Hashem B El-Serag, Aaron P Thrift

Faculty, Staff and Students Publications

BACKGROUND: Gastric cancer (GC) incidence rates overall in the United States have declined over recent decades and are predicted to continue declining. However, there have been mixed recent findings regarding the potential stabilization of rates and potential divergent trends by age group. We used the most recent cancer data for the United States and examined trends in GC between 1992 and 2019, overall and in important subgroups of the population.

METHODS: Age-adjusted GC incidence rates and trends in adults 20 years or older were calculated using data from the Surveillance, Epidemiology, and End Results (SEER) 12 program. Secular trends were …


Aspirin And Nonaspirin Nonsteroidal Antiinflammatory Drug Use And Occurrence Of Colorectal Adenoma In Black American Women, Lauren E Barber, Kimberly A Bertrand, Shanshan Sheehy, Laura F White, Hemant K Roy, Lynn Rosenberg, Julie R Palmer, Jessica L Petrick Dec 2023

Aspirin And Nonaspirin Nonsteroidal Antiinflammatory Drug Use And Occurrence Of Colorectal Adenoma In Black American Women, Lauren E Barber, Kimberly A Bertrand, Shanshan Sheehy, Laura F White, Hemant K Roy, Lynn Rosenberg, Julie R Palmer, Jessica L Petrick

Faculty, Staff and Students Publications

Evidence suggests that aspirin use reduces the occurrence of colorectal neoplasia. Few studies have investigated the association among Black Americans, who are disproportionately burdened by the disease. We assessed aspirin use in relation to colorectal adenoma among Black women. The Black Women's Health Study is a prospective cohort of self-identified Black American women established in 1995. Participants reported regular aspirin use on baseline and follow-up questionnaires. Beginning in 1999, participants reported undergoing a colonoscopy or sigmoidoscopy, the only procedures through which colorectal adenomas can be diagnosed. Multivariable logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals …


Nutrition Assessment And Mash Severity In Children Using The Healthy Eating Index, Ajay Kumar Jain, Paula Buchannan, Katherine P Yates, Patricia Belt, Jeffrey B Schwimmer, Philip Rosenthal, Karen F Murray, Jean P Molleston, Ann Scheimann, Stavra A Xanthakos, Cynthia A Behling, Paula Hertel, Jamie Nilson, Brent A Neuschwander-Tetri, James Tonascia, Miriam B Vos, Nonalcoholic Steatohepatitis Clinical Research Network (Nash Crn) Dec 2023

Nutrition Assessment And Mash Severity In Children Using The Healthy Eating Index, Ajay Kumar Jain, Paula Buchannan, Katherine P Yates, Patricia Belt, Jeffrey B Schwimmer, Philip Rosenthal, Karen F Murray, Jean P Molleston, Ann Scheimann, Stavra A Xanthakos, Cynthia A Behling, Paula Hertel, Jamie Nilson, Brent A Neuschwander-Tetri, James Tonascia, Miriam B Vos, Nonalcoholic Steatohepatitis Clinical Research Network (Nash Crn)

Faculty, Staff and Students Publications

BACKGROUND: Pediatric metabolic-associated fatty liver disease (MAFLD) is a global health problem, with lifestyle modification as its major therapeutic strategy. Rigorous characterization of dietary content on MAFLD in children is lacking. We hypothesized an objectively measured healthier diet would positively modulate MAFLD.

METHODS: Diet was assessed using the Nutrition Data System for Research in children enrolled from 10 tertiary clinical centers to determine the Healthy Eating Index (HEI, 0-100) and individual food components.

RESULTS: In all, 119 children were included (13.3 ± 2.7 y), 80 (67%) male, 67 (18%) White, and 90 (76%) Hispanic, with an average body mass index …


Incidence And Outcomes Of Acute Kidney Injury Including Hepatorenal Syndrome In Hospitalized Patients With Cirrhosis In The Us, Kavish R Patidar, Justin M Belcher, Kevin R Regner, Shelsea A St Hillien, Douglas A Simonetto, Sumeet K Asrani, Javier A Neyra, Pratima Sharma, Juan Carlos Q Velez, Hani Wadei, Mitra K Nadim, Raymond T Chung, Ritu Seethapathy, Xavier Vela Parada, Tianqi Ouyang, Nneka N Ufere, Jevon E Robinson, Paige Mclean Diaz, Robert M Wilechansky, Eric M Przybyszewski, Thomas N Smith, Arzina Aziz Ali, Eric S Orman, Philipp Schulz, Salaah M Siddiqui, Rehma Shabbir, Lucas J Liu, Augusto Cama-Olivares, Alexander H Flannery, Megan L Baker, Deepthi Gunasekaran, Adeline Aswine, Rafik Issa, Jay Li, Shreya Verma, Dustin Chalmers, Vipin Varghese, Walter Lam, Muner Mohamed, Rosemary Kovacic, Anna Gaddy, Rose Mary Attieh, Pedro Cortes, Sahar Semnani, Lin Wang, Saro Khemichian, Andrew S Allegretti Dec 2023

Incidence And Outcomes Of Acute Kidney Injury Including Hepatorenal Syndrome In Hospitalized Patients With Cirrhosis In The Us, Kavish R Patidar, Justin M Belcher, Kevin R Regner, Shelsea A St Hillien, Douglas A Simonetto, Sumeet K Asrani, Javier A Neyra, Pratima Sharma, Juan Carlos Q Velez, Hani Wadei, Mitra K Nadim, Raymond T Chung, Ritu Seethapathy, Xavier Vela Parada, Tianqi Ouyang, Nneka N Ufere, Jevon E Robinson, Paige Mclean Diaz, Robert M Wilechansky, Eric M Przybyszewski, Thomas N Smith, Arzina Aziz Ali, Eric S Orman, Philipp Schulz, Salaah M Siddiqui, Rehma Shabbir, Lucas J Liu, Augusto Cama-Olivares, Alexander H Flannery, Megan L Baker, Deepthi Gunasekaran, Adeline Aswine, Rafik Issa, Jay Li, Shreya Verma, Dustin Chalmers, Vipin Varghese, Walter Lam, Muner Mohamed, Rosemary Kovacic, Anna Gaddy, Rose Mary Attieh, Pedro Cortes, Sahar Semnani, Lin Wang, Saro Khemichian, Andrew S Allegretti

Faculty, Staff and Students Publications

BACKGROUND & AIMS: Acute kidney injury (AKI) in cirrhosis is common and associated with high morbidity, but the incidence rates of different etiologies of AKI are not well described in the US. We compared incidence rates, practice patterns, and outcomes across etiologies of AKI in cirrhosis.

METHODS: We performed a retrospective cohort study of 11 hospital networks, including consecutive adult patients admitted with AKI and cirrhosis in 2019. The etiology of AKI was adjudicated based on pre-specified clinical definitions (prerenal/hypovolemic AKI, hepatorenal syndrome [HRS-AKI], acute tubular necrosis [ATN], other).

RESULTS: A total of 2,063 patients were included (median age 62 …


Risk Stratification Model For Hepatocellular Cancer In Patients With Cirrhosis, Fasiha Kanwal, Saira Khaderi, Amit G Singal, Jorge A Marrero, Sumeet K Asrani, Christopher I Amos, Aaron P Thrift, Jennifer R Kramer, Xian Yu, Yumei Cao, Michelle Luster, Abeer Al-Sarraj, Jing Ning, Hashem B El-Serag Dec 2023

Risk Stratification Model For Hepatocellular Cancer In Patients With Cirrhosis, Fasiha Kanwal, Saira Khaderi, Amit G Singal, Jorge A Marrero, Sumeet K Asrani, Christopher I Amos, Aaron P Thrift, Jennifer R Kramer, Xian Yu, Yumei Cao, Michelle Luster, Abeer Al-Sarraj, Jing Ning, Hashem B El-Serag

Faculty, Staff and Students Publications

BACKGROUND & AIMS: The available risk stratification indices for hepatocellular cancer (HCC) have limited applicability. We developed and externally validated an HCC risk stratification index in U.S. cohorts of patients with cirrhosis.

METHODS: We used data from 2 prospective U.S. cohorts to develop the risk index. Patients with cirrhosis were enrolled from 8 centers and followed until development of HCC, death, or December 31, 2021. We identified an optimal set of predictors with the highest discriminatory ability (C-index) for HCC. The predictors were refit using competing risk regression and its predictive performance was evaluated using the area under the receiver-operating …