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Digestive System Commons™

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2024

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Full-Text Articles in Digestive System

Pancreaticoduodenectomy In Trauma Patients With Grade Iv-V Duodenal Or Pancreatic Injuries: A Post Hoc Analysis Of An East Multicenter Trial, Rachel Leah Choron, Charoo Piplani, Julia Kuzinar, Amanda L. Teichman, Christopher Bargoud, Jason D. Sciarretta, Randi N. Smith, Dustin Hanos, Iman N. Afif, Jessica H. Beard, Navpreet Kaur Dhillon, Ashling Zhang, Mira Ghneim, Rebekah Devasahayam, Oliver Gunter, Alison A. Smith, Brandi Sun, Chloe S. Cao, Jessica K. Reynolds, Lauren A. Hilt, Daniel N. Holena, Grace Chang, Meghan Jonikas, Karla Echeverria-Rosario, Nathaniel S. Fung, Aaron Anderson, Caitlin A. Fitzgerald, Ryan Peter Dumas, Jeremy H. Levin, Et Al Dec 2024

Pancreaticoduodenectomy In Trauma Patients With Grade Iv-V Duodenal Or Pancreatic Injuries: A Post Hoc Analysis Of An East Multicenter Trial, Rachel Leah Choron, Charoo Piplani, Julia Kuzinar, Amanda L. Teichman, Christopher Bargoud, Jason D. Sciarretta, Randi N. Smith, Dustin Hanos, Iman N. Afif, Jessica H. Beard, Navpreet Kaur Dhillon, Ashling Zhang, Mira Ghneim, Rebekah Devasahayam, Oliver Gunter, Alison A. Smith, Brandi Sun, Chloe S. Cao, Jessica K. Reynolds, Lauren A. Hilt, Daniel N. Holena, Grace Chang, Meghan Jonikas, Karla Echeverria-Rosario, Nathaniel S. Fung, Aaron Anderson, Caitlin A. Fitzgerald, Ryan Peter Dumas, Jeremy H. Levin, Et Al

School of Medicine Faculty Publications

INTRODUCTION: The utility of pancreaticoduodenectomy (PD) for high-grade traumatic injuries remains unclear and data surrounding its use are limited. We hypothesized that PD does not result in improved outcomes when compared with non-PD surgical management of grade IV-V pancreaticoduodenal injuries. METHODS: This is a retrospective, multicenter analysis from 35 level 1 trauma centers from January 2010 to December 2020. Included patients were ≥ 15 years of age with the American Association for the Surgery of Trauma grade IV-V duodenal and/or pancreatic injuries. The study compared operative repair strategy: PD versus non-PD. RESULTS: The sample (n=95) was young (26 years), male …


Microbiome Variation In Production Phenotypes And The Role Of Colonization History In Microbiome Establishment, Seidu Adams Dec 2024

Microbiome Variation In Production Phenotypes And The Role Of Colonization History In Microbiome Establishment, Seidu Adams

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Ruminant-based agriculture is expected to continue to be a major contributor to food security to feed the growing population. At the heart of nutrient degradation of complex organic matter within the rumen are its microbes. These microbes can convert otherwise unusable organic matter into usable protein and energy and can provide up to 50% of the animal’s protein needs and up to 70% of the energy needs. The microbial functional capacity within the rumen determines the nutrients utilized and the end products of fermentation. However, our understanding of microbial functional capacity within the rumen and factors that influence the rumen …


Revisiting The Marginal Artery Of Drummond: A New Insight Into The Anatomy Of Colonic Arterial Supply, Jeams Richard Costa, Michael Kitiashvili, Jack Stensland, Mohammadali Shoja Nov 2024

Revisiting The Marginal Artery Of Drummond: A New Insight Into The Anatomy Of Colonic Arterial Supply, Jeams Richard Costa, Michael Kitiashvili, Jack Stensland, Mohammadali Shoja

HCA-NSU MD Research Day

OBJECTIVE: This study was conducted to challenge the assumption that the marginal artery (MA) of Drummond is fully continuous. BACKGROUND: The MA is a crucial arterial anastomosis that runs along the inner margin of the colon. Despite its importance, the continuity of the MA has been insufficiently evaluated in the literature. METHODS: We dissected the mesentery in 18 cadavers to explore the formation and identify any areas of discontinuity in the MA. RESULTS: Varying degrees of MA discontinuity was observed among individuals. Complete continuity of the MA was observed in only one case. In one specimen, the MA was completely …


A Case Of Cecal Volvulus In The Setting Of Multiple Sclerosis, S. Jiaming Lin, Paige M. Kieper, Michael Mullinax, Jake W. Vogel, Kimberly Syres Nov 2024

A Case Of Cecal Volvulus In The Setting Of Multiple Sclerosis, S. Jiaming Lin, Paige M. Kieper, Michael Mullinax, Jake W. Vogel, Kimberly Syres

Advances in Clinical Medical Research and Healthcare Delivery

This case report describes a patient with a history of multiple sclerosis (MS) and optic neuritis, who presented with acute onset of generalized abdominal pain. The patient was ultimately diagnosed with cecal volvulus requiring emergent laparotomy and right hemicolectomy. This case highlights the relationship between neurogenic bowel dysfunction (NBD) associated constipation in patients with MS and intestinal volvulus. Additionally, this case demonstrates the importance of NBD associated constipation management through various modalities including laxative regimens, behavioral and diet modification, and reduction of polypharmacy, with an emphasis on individualized patient management.


Liposomal Eribulin (E7389-Lf) Plus Nivolumab: A Potential Treatment Option For Patients With Advanced Gastric Cancer?, Ali Raza Shaikh, Daniel Lin Oct 2024

Liposomal Eribulin (E7389-Lf) Plus Nivolumab: A Potential Treatment Option For Patients With Advanced Gastric Cancer?, Ali Raza Shaikh, Daniel Lin

Jefferson Hospital Staff Papers and Presentations

No abstract provided.


Digestive System, Your Very Favorite, Children's Health Oct 2024

Digestive System, Your Very Favorite, Children's Health

English

single-page


Digestive System (Spanish), Your Very Favorite, Children's Health Oct 2024

Digestive System (Spanish), Your Very Favorite, Children's Health

Spanish

single-page, Spanish


Health Matters! Coloring And Activity Book (80-Pages), Your Very Favorite, Children's Health, Lorraine Sheldon, May Bressler Oct 2024

Health Matters! Coloring And Activity Book (80-Pages), Your Very Favorite, Children's Health, Lorraine Sheldon, May Bressler

English

Health Matters! is a English-language health literacy resource designed for pediatric patients and their families. Written at an approximately 6th-grade reading level, it supports patient education through engaging coloring and activity pages.

The content covers a wide range of health and wellness topics, including body systems, nutrition, mental wellness, patient safety, and social-emotional skills such as building friendships and navigating conversations when returning to school. Developed for use in both hospital settings and the broader community, the resource promotes learning through interactive, age-appropriate activities.

This printable PDF version contains the complete collection of activities and comprises 80 pages. The resource …


La Salud Es Importante: Libro De Actividades (80-Pages), Your Very Favorite, Children's Health, Lorraine Sheldon, May Bressler Oct 2024

La Salud Es Importante: Libro De Actividades (80-Pages), Your Very Favorite, Children's Health, Lorraine Sheldon, May Bressler

Spanish

Health Matters! is a Spanish-language health literacy resource designed for pediatric patients and their families. Written at an approximately 6th-grade reading level, it supports patient education through engaging coloring and activity pages.

The content covers a wide range of health and wellness topics, including body systems, nutrition, mental wellness, patient safety, and social-emotional skills such as building friendships and navigating conversations when returning to school. Developed for use in both hospital settings and the broader community, the resource promotes learning through interactive, age-appropriate activities.

This printable PDF version contains the complete collection of activities and comprises 80 pages. The resource …


Bilio-Cecal Stent Migration Presenting As Massive Rectal Bleeding., Lefika Bathobakae, Shady Geris, Mohita Jariwala, Mansi Patel, Jessica Escobar, Ruhin Yuridullah, Kamal Amer, Yana Cavanagh Sep 2024

Bilio-Cecal Stent Migration Presenting As Massive Rectal Bleeding., Lefika Bathobakae, Shady Geris, Mohita Jariwala, Mansi Patel, Jessica Escobar, Ruhin Yuridullah, Kamal Amer, Yana Cavanagh

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Endoscopic biliary stenting is a well-established intervention for the treatment of biliary, hepatic, and pancreatic disorders. The common indications include strictures, neoplasms, stones, infections, and bile leaks. Stents can be occluded, predisposing patients to ascending cholangitis and biliary sepsis. Distal stent migration is another known complication of endoscopic stenting and is usually spontaneous. Bowel perforation, abscesses, bleeding, and pancreatitis are rare complications of distal stent migration and are usually limited to the duodenum. Herein, we describe an extremely rare case of bilio-cecal stent migration presenting as rectal bleeding.


An Anatomical, Histological, And Immunohistochemical Investigation On The Intestines Of The Eurasian Lynx (Lynx Lynx), Şükran Yedi̇el Aras, Gülseren Kırbaş Doğan, Ebru Karadağ Sarı Aug 2024

An Anatomical, Histological, And Immunohistochemical Investigation On The Intestines Of The Eurasian Lynx (Lynx Lynx), Şükran Yedi̇el Aras, Gülseren Kırbaş Doğan, Ebru Karadağ Sarı

The Thai Journal of Veterinary Medicine

In this study, it was aimed to perform an anatomical, histological, and immunohistochemical investigation of the intestines of the lynx. After performing macro-anatomical measurements of the tissues obtained from the small and large intestines of the lynx which was brought to the Kafkas University Veterinary Faculty Clinics and Wild Life Preservation and Rehabilitation Center for treatment but could not be saved despite all interventions, the routine histological procedure was followed. Triple staining was applied to examine the general histological structure of intestinal tissues, and PAS staining was applied for identifying goblet cells. Somatostatin distribution was examined immunohistochemically. The lengths and …


Sump Syndrome: The Forgotten Cause Of Painless Jaundice In The Elderly, Mark Ayoub, Amna Anees Jul 2024

Sump Syndrome: The Forgotten Cause Of Painless Jaundice In The Elderly, Mark Ayoub, Amna Anees

Journal of Community Hospital Internal Medicine Perspectives

Painless jaundice is a common presentation of abdominal malignancy seen in elderly patients. While malignancy may be a common cause of obstructive jaundice in that population group, anchor bias should always be avoided. We present a case of an elderly woman who presented with painless jaundice and weight loss. She had a very remote history of cholecystitis. She was found to have Sump syndrome due to a stricture at the Choledochoduodenostomy (CDD) site. She underwent endoscopic retrograde cholangiopancreatography (ERCP) with stent placement which shortly led to resolution of her jaundice. Biopsy from the stricture site came back negative for malignancy.


Low Vitamin B12: The Need For Updated Provider Education, Tracy Coltharp May 2024

Low Vitamin B12: The Need For Updated Provider Education, Tracy Coltharp

Doctor of Nursing Practice Scholarly Project

Vitamin B12 deficiency is a notable clinical problem with multi-factorial risk factors and a multitude of clinical manifestations. It is associated with polyglandular autoimmune syndromes, some familiar and some lesser well known. The specific aim of this scholarly project was to evaluate whether education aimed at providers such as nurse practitioners, nurse practitioner students, physician assistants, and physicians regarding updated diagnostic criteria for vitamin B12 deficiencies as well as associated diseases, specifically autoimmune gastritis, and pernicious anemia, increased their knowledge and ultimately improved clinical practice. The project utilized a pre-test/post-test design with education provided in between. There was an improvement …


Clinical Outcomes For Patients With Nafld And Acute Hepatitis: An Analysis Of The National Inpatient Sample, Dakota B. Pastore, Tony Elias, Peter Senatore May 2024

Clinical Outcomes For Patients With Nafld And Acute Hepatitis: An Analysis Of The National Inpatient Sample, Dakota B. Pastore, Tony Elias, Peter Senatore

Rowan-Virtua Research Day

Introduction: Non-alcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease in the United States and has been found to play a significant role in cardiovascular disease risk through several mechanisms including dyslipidemia, insulin resistance, coagulability, and inflammation. Acute-on-chronic liver disease continues to contribute to worse health outcomes via acute hepatitis.

Methods: This case-control study investigated the relationship between NAFLD and acute hepatitis using data extracted from the National Inpatient Sample (NIS) Database for the years 2019 and 2020. The NIS was searched for hospitalizations of adult patients with acute hepatitis with and without NAFLD. Using …


Gut Microbiota Changes After Cholecystectomy: Unraveling The Microbial Mysteries - A Systematic Review, Maftuna Kurbonnazarova, Arthi Rameshkumar, Olivia R. Siciliano, Samrat Gollapudi, Katarina Rusinak, Alissa Brotman O’Neill May 2024

Gut Microbiota Changes After Cholecystectomy: Unraveling The Microbial Mysteries - A Systematic Review, Maftuna Kurbonnazarova, Arthi Rameshkumar, Olivia R. Siciliano, Samrat Gollapudi, Katarina Rusinak, Alissa Brotman O’Neill

Rowan-Virtua Research Day

Aims: This review aims to expand upon previous research examining change in gastrointestinal microbiota before and after cholecystectomy.

Methods: A systematic review, combined with a pooled analysis, was conducted to assess gut microbiota dysbiosis post-cholecystectomy, utilizing 71 articles retrieved from 3 databases, with 13 undergoing full-text appraisal. The publication dates ranged from 2018 to 2023.

Results: Results suggested a greater degree of microbiota alteration in symptomatic post-cholecystectomy patients, characterized by a decrease in the Firmicutes/Bacteroidetes ratio, Bifidobacterium and Lactococcus, alongside increased levels of harmful microbiota such as Prevotella, Sutterella, Proteobacteria, Verrucomicrobia, Blautia obeum, and Veillonella species. Interestingly, an increase in …


Arterial Vascularization Of The Colon; A Guide To Surgical Resection, Iulian Slavu, Florin Filipoiu, Raluca Tulin, Ileana Dima, Alexandru Dogaru, Bogdan Socea, Luminita Tomescu, Theodor Badea, Anca Oprescu Macovei, Adrian Tulin Apr 2024

Arterial Vascularization Of The Colon; A Guide To Surgical Resection, Iulian Slavu, Florin Filipoiu, Raluca Tulin, Ileana Dima, Alexandru Dogaru, Bogdan Socea, Luminita Tomescu, Theodor Badea, Anca Oprescu Macovei, Adrian Tulin

Journal of Mind and Medical Sciences

Background. Colorectal cancer is a commonly diagnosed neoplasia in men and women worldwide. This study aims to rigorously map the arterial distribution of the colon in order to assess the implications of vascular patterns in surgical resection. Methods. Cadaveric dissections were performed to explore the arterial distribution (including collateral blood flow) of the colon. The study used standard dissection tools and photographic documentation to detail the vascular architecture supporting the large intestine. Results. The dissection revealed important arterial branches and anastomoses in the area of the superior and inferior mesenteric arteries, which are able to ensure continuous local blood supply …


Overexpression Of Fatty Acid Synthase Upregulates Glutamine–Fructose-6-Phosphate Transaminase 1 And O-Linked N-Acetylglucosamine Transferase To Increase O-Glcnac Protein Glycosylation And Promote Colorectal Cancer Growth, James Drury, Mariah E. Geisen, Josiane Weber Tessmann, Piotr G. Rychahou, Courtney O. Kelson Apr 2024

Overexpression Of Fatty Acid Synthase Upregulates Glutamine–Fructose-6-Phosphate Transaminase 1 And O-Linked N-Acetylglucosamine Transferase To Increase O-Glcnac Protein Glycosylation And Promote Colorectal Cancer Growth, James Drury, Mariah E. Geisen, Josiane Weber Tessmann, Piotr G. Rychahou, Courtney O. Kelson

Markey Cancer Center Faculty Publications

Fatty acid synthesis has been extensively investigated as a therapeutic target in cancers, including colorectal cancer (CRC). Fatty acid synthase (FASN), a key enzyme of de novo lipid synthesis, is significantly upregulated in CRC, and therapeutic approaches of targeting this enzyme are currently being tested in multiple clinical trials. However, the mechanisms behind the pro- oncogenic action of FASN are still not completely understood. Here, for the first time, we show that overexpression of FASN increases the expression of glutamine–fructose-6-phosphate transaminase 1 (GFPT1) and O-linked N-acetylglucosamine transferase (OGT), enzymes involved in hexosamine metabolism, and the level of O-GlcNAcylation in vitro …


Blastomas Of The Digestive System In Adults: A Review, Yu Liu, Tony El Jabbour, Jonathan Somma, Yukihiro Nakanishi, Saverio Ligato, Hwajeong Lee, Zhi-Yan Fu Apr 2024

Blastomas Of The Digestive System In Adults: A Review, Yu Liu, Tony El Jabbour, Jonathan Somma, Yukihiro Nakanishi, Saverio Ligato, Hwajeong Lee, Zhi-Yan Fu

School of Medicine Faculty Publications

Blastomas, characterized by a mixture of mesenchymal, epithelial, and undifferentiated blastematous components, are rare malignant neoplasms originating from precursor blast cells. This review focuses on digestive system blastomas in adult patients, including gastroblastoma, hepatoblastoma, and pancreatoblastoma. Gastroblastoma is a biphasic, epitheliomesenchymal tumor, with only sixteen cases reported to date. In addition to the characteristic histology, metastasis-associated lung adenocarcinoma transcript 1 - glioma-associated oncogene homolog 1 gene fusion is typical, although recently novel ewing sarcoma breakpoint region 1 - c-terminal binding protein 1 and patched 1 - glioma-associated oncogene homolog 2 fusions have been described. Hepatoblastoma is exceptionally rare in adults …


Obesity: The Effects On Health And Healthcare, Nadia Abdulbaki Apr 2024

Obesity: The Effects On Health And Healthcare, Nadia Abdulbaki

Posters - 2024

▪ In 2022, 1 in 8 people in the world were living with obesity.

▪ 2.8 million people die each year due to being overweight and obese.

▪ Obesity is a medical disease that raises the likelihood of developing various conditions and diseases that increase the chances of mortality for affected individuals.

▪ Obesity can be caused by several influences, whether behavioral, socioeconomic, environmental, hormonal, or genetic; however, the primary cause of obesity is mostly attributed to lifestyle. Specifically, it is the consumption of a high amount of calories in conjunction with a low amount of calories expended. This is …


Limonene Exerts Anti-Inflammatory Effect On Lps-Induced Jejunal Injury In Mice By Inhibiting Nf-Κb/Ap-1 Pathway, Sarmed H. Kathem, Yasameen Sh. Nasrawi, Shihab H. Mutlag, Surya M. Nauli Mar 2024

Limonene Exerts Anti-Inflammatory Effect On Lps-Induced Jejunal Injury In Mice By Inhibiting Nf-Κb/Ap-1 Pathway, Sarmed H. Kathem, Yasameen Sh. Nasrawi, Shihab H. Mutlag, Surya M. Nauli

Pharmacy Faculty Articles and Research

The human gastrointestinal system is a complex ecosystem crucial for well-being. During sepsis-induced gut injury, the integrity of the intestinal barrier can be compromised. Lipopolysaccharide (LPS), an endotoxin from Gram-negative bacteria, disrupts the intestinal barrier, contributing to inflammation and various dysfunctions. The current study explores the protective effects of limonene, a natural compound with diverse biological properties, against LPS-induced jejunal injury in mice. Oral administration of limonene at dosages of 100 and 200 mg/kg was used in the LPS mouse model. The Murine Sepsis Score (MSS) was utilized to evaluate the severity of sepsis, while serum levels of urea and …


Exploring Endoscopic Competence In Gastroenterology Training: A Simulation-Based Comparative Analysis Of Gages, Dops, And Ace Assessment Tools, Faisal Wasim Ismail, Azam Afzal, Rafia Durrani, Safia Awan, Rayyan Qureshi, Michelle R. Brown Jan 2024

Exploring Endoscopic Competence In Gastroenterology Training: A Simulation-Based Comparative Analysis Of Gages, Dops, And Ace Assessment Tools, Faisal Wasim Ismail, Azam Afzal, Rafia Durrani, Safia Awan, Rayyan Qureshi, Michelle R. Brown

Section of Gastroenterology

Purpose: Accurate and convenient evaluation tools are essential to document endoscopic competence in Gastroenterology training programs. The Direct Observation of Procedural Skills (DOPS), Global Assessment of Gastrointestinal Endoscopic Skills (GAGES), and Assessment of Endoscopic Competency (ACE) are widely used validated competency assessment tools for gastrointestinal endoscopy. However, studies comparing these 3 tools are lacking, leading to lack of standardization in this assessment. Through simulation, this study seeks to determine the most reliable, comprehensive, and user-friendly tool for standardizing endoscopy competency assessment.
Methods: A mixed-methods quantitative-qualitative approach was utilized with sequential deductive design. All nine trainees in a gastroenterology training program …


Effects Of Food Bar Chewing Duration On The Physiologic, Metabolic, And Perceptual Responses To Moderate-Intensity Running, Thomas R. Geaney, Zachary A. Sievert, J. David Branch, Patrick B. Wilson Jan 2024

Effects Of Food Bar Chewing Duration On The Physiologic, Metabolic, And Perceptual Responses To Moderate-Intensity Running, Thomas R. Geaney, Zachary A. Sievert, J. David Branch, Patrick B. Wilson

Exercise Science Faculty Publications

Purpose

Chewing duration can affect food particle size, gastric processing, and postprandial glycemia, but these effects have not been investigated with exercise. This study examined how the chewing duration of a food bar impacts glycemic and metabolic responses, gastrointestinal (GI) symptoms, psychological affect, and performance during endurance running.

Methods

This randomized, unblinded, crossover study had 15 males (35.2 ± 7.4 years, VO2peak: 56.1 ± 5.2 ml/kg/min) attend three laboratory visits. Visit 1 required a VO2peak test, 10 min familiarization run at 60% VO2peak, and familiarization time-to-exhaustion (TTE) test (10 min at 90% VO2peak, followed by …


The Role Of Liver-Specific Transcription Factor Hnf4 In Reprogramming Of Fibroblasts, Mary Odubote Jan 2024

The Role Of Liver-Specific Transcription Factor Hnf4 In Reprogramming Of Fibroblasts, Mary Odubote

Masters Theses

The mammalian liver, a vital organ with complex functions, relies on a network of transcription factors to regulate gene expression. Fusion of hepatoma cells with fibroblasts often leads to gene extinction, silencing approximately 400 liver-enriched genes, including critical transcription factors such as HNF4. Previous studies revealed that ectopic expression of HNF4 in fibroblasts failed to prevent the extinction of SERPINA1, a liver-specific gene, upon subsequent fusion with hepatoma cells. Here, we sought to investigate the extent to which ectopic expression of HNF4 can reprogram fibroblast cells and prevent gene extinction in hybrid cells.

Using whole-genome expression analysis, we compared RAT1 …


Advancing School Nursing Practice: A Novel Approach To Screening For Gastrointestinal Disorders In Children, Ashley Bunting, Isabella Cavlan Jan 2024

Advancing School Nursing Practice: A Novel Approach To Screening For Gastrointestinal Disorders In Children, Ashley Bunting, Isabella Cavlan

Nursing | Senior Theses

Background: Currently, mandated health screenings in California schools are limited to vision, hearing, and scoliosis; this leaves several other body systems unmonitored during the crucial years of childhood development. One such system is the gastrointestinal (GI) system, which plays a vital role in the normal growth, nutrition status, development, and overall health of children. Objective: By developing and implementing a GI-specific screening tool in the outpatient school setting, this research aims to increase the detection of GI disorders in children. Not only that, but school nurses can use this novel screening tool to promote early diagnosis, intervention, and …


Characterization Of Bowel Dysfunction After Spinal Cord Injury In Mice, Olivia Wireman Jan 2024

Characterization Of Bowel Dysfunction After Spinal Cord Injury In Mice, Olivia Wireman

Theses and Dissertations--Physiology

Most individuals who suffer a spinal cord injury (SCI) will experience some form of bowel dysfunction. Trauma to the spinal cord can result in severe constipation and/or incontinence, otherwise known as neurogenic bowel. Constipation requires extensive bowel routines typically involving the help of another person. Still, many living with SCI are hospitalized due to bowel complications such as fecal impaction. While neurogenic bowel has been well characterized in the clinic, pre-clinical models of neurogenic bowel after SCI are still in development. Most pre-clinical studies in bowel dysfunction after SCI are published in rat models. Studies existing in mice, to our …


Machine Learning As A Tool For Early Detection: A Focus On Late-Stage Colorectal Cancer Across Socioeconomic Spectrums, Hadiza Galadima, Rexford Anson-Dwamena, Ashley Johnson, Ghalib Bello, Georges Adunlin, James Blando Jan 2024

Machine Learning As A Tool For Early Detection: A Focus On Late-Stage Colorectal Cancer Across Socioeconomic Spectrums, Hadiza Galadima, Rexford Anson-Dwamena, Ashley Johnson, Ghalib Bello, Georges Adunlin, James Blando

Community & Environmental Health Faculty Publications

Purpose: To assess the efficacy of various machine learning (ML) algorithms in predicting late-stage colorectal cancer (CRC) diagnoses against the backdrop of socio-economic and regional healthcare disparities. Methods: An innovative theoretical framework was developed to integrate individual- and census tract-level social determinants of health (SDOH) with sociodemographic factors. A comparative analysis of the ML models was conducted using key performance metrics such as AUC-ROC to evaluate their predictive accuracy. Spatio-temporal analysis was used to identify disparities in late-stage CRC diagnosis probabilities. Results: Gradient boosting emerged as the superior model, with the top predictors for late-stage CRC diagnosis being anatomic site, …


Socioeconomic Status And Health Disparities Drive Differences In Accelerometer-Derived Physical Activity In Fatty Liver Disease And Significant Fibrosis, Lucia Tabacu, Sajag Swami, Mark Ledbetter, Mohamad S. Siddiqui, Ekaterina Smirnova Jan 2024

Socioeconomic Status And Health Disparities Drive Differences In Accelerometer-Derived Physical Activity In Fatty Liver Disease And Significant Fibrosis, Lucia Tabacu, Sajag Swami, Mark Ledbetter, Mohamad S. Siddiqui, Ekaterina Smirnova

Mathematics & Statistics Faculty Publications

Background and aims

The cornerstone of clinical management of patients with nonalcoholic fatty liver disease (NAFLD) are lifestyle changes such as increasing physical activity (PA) aimed at improving cardiometabolic risk. To inform NAFLD prevention and treatment guidelines we aimed to: (i) quantify the role of PA on lowering the risk for NAFLD and fibrosis; (ii) characterize NAFLD and fibrosis association with PA in the context of socioeconomic environment.

Methods

A sample of 2648 participants from the NHANES 2003–2006 was selected to develop survey weighted multivariable logistic regression models for predicting NAFLD and significant fibrosis, diagnosed non-invasively via fatty liver index …


Sccad: Cluster Decomposition-Based Anomaly Detection For Rare Cell Identification In Single-Cell Expression Data, Yunpei Xu, Shaokai Wang, Qilong Feng, Jiazhi Xia, Yaohang Li, Hong-Dong Li, Jianxin Wang Jan 2024

Sccad: Cluster Decomposition-Based Anomaly Detection For Rare Cell Identification In Single-Cell Expression Data, Yunpei Xu, Shaokai Wang, Qilong Feng, Jiazhi Xia, Yaohang Li, Hong-Dong Li, Jianxin Wang

Computer Science Faculty Publications

Single-cell RNA sequencing (scRNA-seq) technologies have become essential tools for characterizing cellular landscapes within complex tissues. Large-scale single-cell transcriptomics holds great potential for identifying rare cell types critical to the pathogenesis of diseases and biological processes. Existing methods for identifying rare cell types often rely on one-time clustering using partial or global gene expression. However, these rare cell types may be overlooked during the clustering phase, posing challenges for their accurate identification. In this paper, we propose a Cluster decomposition-based Anomaly Detection method (scCAD), which iteratively decomposes clusters based on the most differential signals in each cluster to effectively separate …