Gastroenterology Commons^™

Psychological Adaptation In Colorectal Cancer Survivors: Pilot Study Findings, Anuja L. Sarode, Emily M. Su, Amber Kerstetter-Fogle, Steve Paciorek, Erica L. Laipply

HCA Healthcare Journal of Medicine

Background

In this pilot study, we examined psychological impacts of colorectal cancer (CRC), focusing on cancer-related posttraumatic stress disorder (CR-PTSD) symptoms, posttraumatic growth (PTG), and their relationship with coping strategies in surgically treated CRC patients.

Methods

This prospective pre- and postoperative pilot study assessed CRC patients at 2 time points, pre- and postoperative. Psychological symptoms were evaluated using the PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (PCL-5) and the PTG Inventory Short Form (PTGI-SF). Coping strategies were assessed using the Brief Coping Orientation to Problems Experienced (COPE) instrument. Changes in CR-PTSD, PTG, and coping …

Efficacy And Safety Of Larotrectinib In Patients With Trk Fusion Gastrointestinal Cancer, Changsong Qi, Lin Shen, Thierry Andre, Hyun Cheol Chung, Timothy L Cannon, Elena Garralda, Antoine Italiano, Damian T Rieke, Tianshu Liu, Domnita-Ileana Burcoveanu, Natascha Neu, Chiara E Mussi, Rui-Hua Xu, David S Hong, Alexander Drilon, Jordan Berlin

Faculty, Staff and Student Publications

Background: Larotrectinib is the first-in-class, highly selective TRK inhibitor with demonstrated efficacy in various TRK fusion solid tumours. We report the efficacy and safety of larotrectinib in patients with TRK fusion gastrointestinal (GI) cancer.

Methods: Patients with TRK fusion GI cancer from NAVIGATE (NCT02576431) were included. Response was independent review committee (IRC)-assessed per RECIST v1.1.

Results: As of July 2023, 44 patients were enrolled. Tumour types included colorectal (CRC; n = 26), pancreatic (n = 7), cholangiocarcinoma (n = 4), gastric (n = 3), and one each of appendiceal, duodenal, oesophageal and hepatic cancers. Of the 26 patients …

Fecal Immunochemical Test Positivity Thresholds: An International Survey Of Population-Based Screening Programs, Graeme P Young, Sally C Benton, Robert S Bresalier, Han-Mo Chiu, Evelien Dekker, Callum G Fraser, Marieke A M Frasa, Stephen P Halloran, Michael Hoffmeister, Susan Parry, Kevin Selby, Carlo Senore, Harminder Singh, Erin L Symonds

Faculty, Staff and Student Publications

Background: The fecal immunochemical test for hemoglobin (FIT) is now a widely used non-invasive test in population-based organized screening programs for colorectal neoplasia. The positivity thresholds of tests currently in use are based on the fecal hemoglobin concentration (f-Hb), but the rationale for the adopted thresholds are not well documented. To understand current global usage of FIT in screening programs we conducted an international survey of the brands of FIT used, the f-Hb positivity threshold applied and the rationale for the choice.

Methods: All members of the World Endoscopy Organization CRC Screening Committee were invited to complete an eight-element initial …

Microrna 133a Regulates Squalene Epoxidase Expression In Colorectal Cancer Cells To Control Cell Proliferation And Cholesterol Production, Ji Su Mo, Santosh Lamichhane, Grinsun Sharma, Soo Cheon Chae

School of Medicine Faculty Publications

Background/Objectives: Colorectal cancer (CRC) is one of the most common cancers worldwide, with high incidence and mortality rates. MicroRNAs are endogenous and non-coding RNAs that play a pivotal role in the development and progression of various cancers by targeting specific genes. Previously, we identified MIR133A to be significantly decreased in human CRC tissues. This study aims to identify the relationship with SQLE, one of the candidate target genes of MIR133A, and study their interaction in CRC cells. Methods: Through the luciferase reporter assay, quantitative RT-PCR (qRT-PCR), and Western blot analysis. Results: We identified SQLE as a direct target gene of …

Navigating The Way To Colonoscopy Completion: A Quality Improvement Study, Jessica Duncan

Doctor of Nursing Practice Scholarly Projects

Abstract

Background: Colonoscopies are a highly effective method of colorectal cancer screening, yet their value is hindered by frequent last-minute cancellations and patient no-shows. The absence of a consistent, evidence-based pre-procedural education tool to address patient-level barriers remains a critical gap in healthcare delivery.

Local Problem: At a hospital-based medical practice in Kane County, Illinois, 7% of colonoscopy cancellations occur last minute, primarily due to preventable factors.

Methods: This quality improvement project compared last-minute cancellation and no-show rates between a control group receiving standard care and an intervention group provided with enhanced education and regularly scheduled follow-up contact through patient …

Molecular Tumor Testing On Colorectal Adenocarcinoma Specimens In A Large Community-Based Healthcare System, David H. Kruchko, Sareena Ali, Mahbubul Hasan, Madeline Sesselmann, Imad Almanaseer, Eli D. Ehrenpreis

Journal of Patient-Centered Research and Reviews

Purpose: This study aimed to describe the adherence of National Comprehensive Cancer Network guidelines to perform genetic screening for all colorectal cancer (CRC) specimens with molecular tumor testing, eg, immunohistochemical (IHC) testing, in a large community-based healthcare setting. The study also identified trends involving characteristics of CRC, individual reporting physician, and physician location and examined the potential impact of these trends on the performance of molecular tumor testing.

Methods: This was a retrospective, multi-center study using a centralized pathology database to assess molecular testing on CRC specimens. The primary endpoint was whether tumor testing of a CRC specimen was performed. …

Targeting Snai1-Mediated Colorectal Cancer Chemoresistance And Stemness By Sphingosine Kinase 2 Inhibition, Harinarayanan Janakiraman, Zachary Gao, Yun Zhu, Jiangling Dong, Scott A Becker, Alhaji Janneh, Besim Ogretmen, E Ramsay Camp

Faculty, Staff and Students Publications

BACKGROUND: Epithelial-to-mesenchymal transition (EMT), cancer stem cells (CSCs), and colorectal cancer (CRC) therapy resistance are closely associated. Prior reports have demonstrated that sphingosine-1-phosphate (S1P) supports stem cells and maintains the CSC phenotype. We hypothesized that the EMT inducer SNAI1 drives S1P signaling to amplify CSC self-renewal capacity and chemoresistance.

METHODS: CRC cell lines with or without ectopic expression of SNAI1 were used to study the role of S1P signaling as mediators of cancer stemness and 5-fluorouracil (5FU) chemoresistance. The therapeutic ability of sphingosine kinase 2 (SPHK2) was assessed using siRNA and ABC294640, a SPHK2 inhibitor. CSCs were isolated from patient-derived …

Global Burden Of Five Major Types Of Gastrointestinal Cancer, Arjun Singh

Division of Gastroenterology and Hepatology Faculty Papers

Gastrointestinal (GI) cancers cause major global morbidity and mortality, with over 5 million new cases and 3.5 million deaths in 2020. The most prevalent GI malignancies are colorectal, gastric, liver, oesophageal, and pancreatic cancers. Marked geographic variations exist, with high incidence in developed regions contrasting with high mortality in developing areas. These patterns reflect disparities in risk factors and cancer control capacities. However, GI cancer incidence is rising with economic growth and lifestyle changes. Poor prognosis and increasing burden underscore the critical need for expanded prevention and research. This review examines global epidemiology, risks, prevention, detection, treatment, and priorities for …

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 …

Genetic And Serological Markers In Colorectal Cancer Surgery, Adrian Silaghi, Vlad Denis Constantin, Dragos Serban, Dragos Epistatu, Ioana Paunica, Daniela Gabriela Bălan, Laura Florentina Rebegea

Journal of Mind and Medical Sciences

Colon cancer is relatively asymptomatic in the early stages, the manifestations appearing and intensifying with the evolution of the disease, especially when associated with local and/or systemic complications. In such cases, surgical interventions are often emergency and involve more extensive operations (on metabolically and immune-stressed organisms), so that an early diagnosis (endoscopy, tumor markers, etc.) remains not only desirable but even a priority, especially in predisposed patients (genetic factors, lifestyle, etc.). As a consequence, the involvement of tumor markers in colon neoplasms has become more and more investigated in recent times. This review investigates the roles of serological and genetic …

A Comprehensive Program Evaluation Of Colorectal Rescreening Initiatives In Rural Virginia, Sarah E. Stowell

Doctors of Nursing Practice (DNP) Final Projects, 2020-current

Background: Despite low-cost and effective screening tools, colorectal cancer (CRC) mortality remains high in the U.S., particularly in rural areas like Virginia’s Northern Shenandoah Valley, where screening rates are low. While literature highlights barriers to CRC screening in these communities and suggests improvement strategies, few studies focus on long-term adherence to screening in rural health clinics (RHCs).

Purpose: This program evaluation assessed the impact and effectiveness of the Rural Colorectal Cancer Rescreening Initiative (RCRI), a pilot program to increase colorectal cancer rescreening rates in a local RHC. It also offers recommendations for optimizing future RCRI efforts. Methods: The program evaluation …

Colocolic Fistula: A Rare Consequential Presentation Of Cecal Mucinous Adenocarcinoma, Jessica Rutyna, Paige Stratton, Rutwik Pradeep Sharma, Anthony V. Baratta Jr

Advances in Clinical Medical Research and Healthcare Delivery

Colorectal cancer (CRC) is the second most common cause of cancer death in the United States. Relative to a 5-year survival rate, CRC patients diagnosed with localized disease accrue a 90% survival rate while those diagnosed with distant-stage disease maintain 14% survival. Mucinous adenocarcinoma (MAC) is a unique subtype of CRC characterized by the presence of extracellular mucin occupying 50% of tumor expansion. Fistula complications of colonic malignancy have rarely been reported and more commonly occur as complications of diverticulitis. Colocolic fistulae are atypical consequences of colon cancer, which have been rarely reported. We wish to report a unique case …

Periodontal Status And Inflammatory Markers In Gingival Crevicular Fluid Of Patients With Periodontitis And Colorectal Cancer, Sandu Râmboiu, Flavia Mirela Nicolae, Andrada Soancă, Dorin Nicolae Gheorghe, Dora Maria Popescu, Bogdan Silviu Ungureanu, Dragoș Nicolae Mărgăritescu, Adina Turcu-Știolica, Mihail Virgil Boldeanu, Valeriu Marin Șurlin, Dan Ionuț Gheonea, Petra Șurlin

Journal of Mind and Medical Sciences

Objectives. The present pilot study was carried out to evaluate the periodontal status, the levels of interleukin-6 and tumor necrosis factor alpha in gingival crevicular fluid on hospitalized patients with colorectal cancer. Materials and Methods. The sample of our study was represented by 74 patients with colorectal cancer. They were assigned to one of the two study groups, based on cancer’s stages, as follows: (i) stage III-IV: 51 patients (A-group); (ii) stage I-II: 23 patients (B-group). For each participant periodontal parameters were recorded and gingival crevicular fluid samples were collected and immunologically assessed. Results. Statistically significant differences were found between …

Braf Inhibitors In Metastatic Colorectal Cancer And Mechanisms Of Resistance: A Review Of The Literature, Patricia Guerrero, Víctor Albarrán, María San Román, Carlos González-Merino, Coral García De Quevedo, Jaime Moreno, Juan Carlos Calvo, Guillermo González, Inmaculada Orejana, Jesús Chamorro, Íñigo Martínez-Delfrade, Blanca Morón, Belén De Frutos, María Reyes Ferreiro

Faculty, Staff and Students Publications

Metastatic colorectal cancer (mCRC) with mutated BRAF exhibits distinct biological and molecular features that set it apart from other subtypes of CRC. Current standard treatment for these tumors involves a combination of chemotherapy (CT) and VEGF inhibitors. Recently, targeted therapy against BRAF and immunotherapy (IT) for cases with microsatellite instability (MSI) have been integrated into clinical practice. While targeted therapy has shown promising results, resistance to treatment eventually develops in a significant portion of responsive patients. This article aims to review the available literature on mechanisms of resistance to BRAF inhibitors (BRAFis) and potential therapeutic strategies to overcome them.

Braf D594a Mutation Defines A Unique Biological And Immuno-Modulatory Subgroup Associated With Functional Cd8+ T Cell Infiltration In Colorectal Cancer, Wenjing Li, Chenyi Zhao, Wenhui Li, Yang Gong, Kaili Ma, Yujie Lu, Xiaowei Liu, Lianjun Zhang, Feng Guo

Faculty, Staff and Student Publications

BACKGROUND: BRAF non-V600 mutation occupies a relatively small but critical subset in colorectal cancer (CRC). However, little is known about the biological functions and impacts of BRAF class III mutation in CRC. Here, we aim to explore how D594A mutation impacts on biological behaviors and immune related signatures in murine CRC cells.

METHODS: BRAF V600E (class I), G469V (class II) and D594A (class III) mutant cell lines were established based on MC38 cells. The biological behaviors of cells were evaluated in respect of cell growth, cell proliferation, cell apoptosis, cell migration and invasion by the methods of colony-forming assay, CCK-8 …

Circadian Disruption And Colorectal Cancer Incidence In Black Women, Lauren E Barber, Trang Vopham, Laura F White, Hemant K Roy, Julie R Palmer, Kimberly A Bertrand

Faculty, Staff and Students Publications

BACKGROUND: Animal and experimental studies suggest circadian disruption increases colorectal cancer risk, but evidence in humans is limited. We examined night shift work, chronotype, and residential position within a time zone, proxies for circadian disruption, in relation to colorectal cancer risk.

METHODS: Participants in the Black Women's Health Study, a prospective cohort of 59,000 Black American women established in 1995, reported history of night shift work and chronotype on follow-up questionnaires. Residential position within a time zone was estimated using participant addresses at each questionnaire cycle. Number of colorectal cancer cases and follow-up duration varied by analysis depending on timing …

Barriers To Colonoscopy In Uk Colorectal Cancer Screening Programmes: Qualitative Interviews With Ethnic Minority Groups, Robert S Kerrison, Natalie Gil, Elizabeth Travis, Robyn Jones, Katriina L Whitaker, Colin Rees, Stephen Duffy, Christian Von Wagner

Faculty, Staff and Student Publications

OBJECTIVE: People from ethnic minority backgrounds are less likely to attend colonoscopy, following faecal immunochemical test screening, and are more likely to be diagnosed with colorectal cancer at an advanced stage as a result. The aim of this research was to explore the barriers and facilitators to attending colonoscopy, perceived by ethnic minority groups living in the United Kingdom.

METHODS: Semi-structured online and telephone interviews were conducted with thirty men and women of Black-African (n = 5), Black-Caribbean (n = 5), South Asian (n = 10) and White British (n = 10) descent. Participants were eligible for screening, but had …

Long Noncoding Rna 01534 Maintains Cancer Stemness By Downregulating Endoplasmic Reticulum Stress Response In Colorectal Cancer, Momoko Ichihara, Hidekazu Takahashi, Naohiro Nishida, Cristina Ivan, Daisuke Okuzaki, Yuhki Yokoyama, Masahisa Ohtsuka, Norikatsu Miyoshi, Mamoru Uemura, Shinji Tanaka, George Adrian Calin, Masaki Mori, Yuichiro Doki, Hidetoshi Eguchi, Hirofumi Yamamoto

Faculty, Staff and Student Publications

Background: Studies have shown that cancer stemness and the endoplasmic reticulum (ER) stress response are inversely regulated in colorectal cancer (CRC), but the mechanism has not been fully clarified. Long noncoding RNAs (lncRNAs) play key roles in cancer progression and metastasis. In this study we investigated lncRNA 01534 (LINC01534) as a possible modulator between cancer stemness and ER stress response.

Methods: In vitro experiments using CRC cell lines were performed to explore a possible role of LINC01534. The expression of LINC01534 in clinical CRC samples was assessed by quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and in situ hybridization.

Results: Silencing …

Matrix Gla Protein – A New Marker For Colorectal Cancer Detection? A Systematic Review, Mirela-Georgiana Perné, Lorena Ciumărnean, Olga-Hilda Orășan, Vasile Negrean, Teodora-Gabriela Alexescu, Mircea Vasile Milaciu, Ioana Roșca, Răzvan Dan Togănel, Gabriel Emil Petre, Lucia Procopcoiuc, Cristina Drugan, Alexandra Crăciun

Journal of Mind and Medical Sciences

Background. Colorectal cancer is a real public health issue, with high morbidity and severe impact on quality of life. Although mortality from this type of cancer is decreasing due to modern diagnostic and treatment methods, the understanding of its genetic and molecular mechanisms is important to develop a broader range of diagnostic and therapeutic approaches. Genetic therapy is an important strategy in cancer treatment, and the matrix Gla protein (MGP) gene expression has been described in numerous studies as increased in tumour pathology. In this article, we have summarized the currently available evidence on the connection between MGP and colorectal …

Colon Cancer Screening And The Association With Colon Cancer Incidence And Mortality Rates In Ethnic Minority Groups, Jovonne Smith

Student Scholar Showcase

Colorectal cancer (CRC) continues to be a public health burden and is the second leading cause of American cancer deaths. Strides have been made in the medical community, and there has been an overall decrease in CRC rates. This decrease is primarily due to a cumulative decline in late-onset colorectal cancer diagnosis (LOCRC), defined as CRC cancer in adults over the age of 50 years. CRC continues to burden American Indians and Alaska Natives (AIAN) and Non-Hispanic Black individuals (NHB) disproportionately. The incidence and mortality rates remain disproportionately higher than other ethnic groups, and the survival rate is lower than …

Survival Improvement For Patients With Metastatic Colorectal Cancer Over Twenty Years, Fadl A Zeineddine, Mohammad A Zeineddine, Abdelrahman Yousef, Yue Gu, Saikat Chowdhury, Arvind Dasari, Ryan W Huey, Benny Johnson, Bryan Kee, Michael S Lee, Maria Pia Morelli, Van K Morris, Michael J Overman, Christine Parseghian, Kanwal Raghav, Jason Willis, Robert A Wolff, Yoshikuni Kawaguchi, Jean-Nicolas Vauthey, Ryan Sun, Scott Kopetz, John Paul Shen

Faculty, Staff and Student Publications

Over the past two decades of successive clinical trials in metastatic colorectal cancer (CRC), the median overall survival of both control and experimental arms has steadily improved. However, the incremental change in survival for metastatic CRC patients not treated on trial has not yet been quantified. We performed a retrospective review of 1420 patients with de novo metastatic CRC who received their primary treatment at the University of Texas M.D. Anderson Cancer Center (UTMDACC) from 2004 through 2019. Median OS was roughly stable for patients diagnosed between 2004 and 2012 (22.6 months) but since has steadily improved for those diagnosed …

Targeted Exome-Based Predictors Of Patterns Of Progression Of Colorectal Liver Metastasis After Percutaneous Thermal Ablation, Iwan Paolucci, Yuan-Mao Lin, Yoshikuni Kawaguchi, Harufumi Maki, A Kyle Jones, Marco Calandri, Scott Kopetz, Timothy E Newhook, Kristy K Brock, Jean-Nicolas Vauthey, Bruno C Odisio

Faculty, Staff and Student Publications

BACKGROUND: Percutaneous thermal ablation is a curative-intent locoregional therapy (LRT) for selected patients with unresectable colorectal liver metastasis (CLM). Several factors have been identified that contribute to local tumour control after ablation. However, factors contributing to disease progression outside the ablation zone after ablation are poorly understood.

METHODS: In this retrospective study, using next-generation sequencing, we identified genetic biomarkers associated with different patterns of progression following thermal ablation of CLM.

RESULTS: A total of 191 ablation naïve patients between January 2011 and March 2020 were included in the analysis, and 101 had genomic profiling available. Alterations in the TGFβ pathway …

An Integrated Proteomic And Glycoproteomic Investigation Reveals Alterations In The N-Glycoproteomic Network Induced By 2-Deoxy-D-Glucose In Colorectal Cancer Cells, Cheng Ma, Hong-Yuan Tsai, Qi Zhang, Lakmini Senavirathna, Lian Li, Lih-Shen Chin, Ru Chen, Sheng Pan

Faculty, Staff and Students Publications

As a well-known glycolysis inhibitor for anticancer treatment, 2-Deoxy-D-glucose (2DG) inhibits the growth and survival of cancer cells by interfering with the ATP produced by the metabolism of D-glucose. In addition, 2DG inhibits protein glycosylation in vivo by competing with D-mannose, leading to endoplasmic reticulum (ER) stress and unfolded protein responses in cancer cells. However, the molecular details underlying the impact of 2DG on protein glycosylation remain largely elusive. With an integrated approach to glycoproteomics and proteomics, we characterized the 2DG-induced alterations in N-glycosylation, as well as the cascading impacts on the whole proteome using the HT29 colorectal cancer …

Maternal Obesity, Pregnancy Weight Gain, And Birth Weight And Risk Of Colorectal Cancer, Caitlin C Murphy, Piera M Cirillo, Nickilou Y Krigbaum, Amit G Singal, Minjae Lee, Timothy Zaki, Ezra Burstein, Barbara A Cohn

Faculty, Staff and Student Publications

Objective: Colorectal cancer (CRC) is a leading cause of cancer-related death worldwide. Obesity is a well-established risk factor for CRC, and fetal or developmental origins of obesity may underlie its effect on cancer in adulthood. We examined associations of maternal obesity, pregnancy weight gain, and birth weight and CRC in adult offspring.

Design: The Child Health and Development Studies is a prospective cohort of women receiving prenatal care between 1959 and 1966 in Oakland, California (N=18 751 live births among 14 507 mothers). Clinical information was abstracted from mothers' medical records 6 months prior to pregnancy through delivery. Diagnoses of …

Diet And Food Chemicals Increasing The Risk Of Colorectal Cancer – Literature Review, Mihail Silviu Tudosie, Andreea Pauna, Cristian Stefani, Iulia Madalina Staicu

Journal of Mind and Medical Sciences

Colorectal cancer is a common form of cancer nowadays. There are many risk factors in the pathogenesis of colorectal cancer. The malignant proliferation is caused by one or more genetic mutations, which activate oncogenes and deactivate tumor suppressor genes. Some factors cannot be changed, such as a person's age or family history. An essential aspect in the pathogenesis of colorectal cancer is the choice of lifestyles, such as a high-fat diet, smoking, and excess alcohol. Carcinogens can be either natural or chemical. The mechanisms by which carcinogens initiate tumor formation are genetic or non-genotoxic. The most common form of colorectal …

Depletion Of Transmembrane Mucin 4 (Muc4) Alters Intestinal Homeostasis In A Genetically Engineered Mouse Model Of Colorectal Cancer, Ramesh Pothuraju, Priya Pai, Sanjib Chaudhary, Jawed A Siddiqui, Jesse L Cox, Sukhwinder Kaur, Satyanarayana Rachagani, Hemant K Roy, Michael Bouvet, Surinder K Batra

Faculty, Staff and Students Publications

Mucins are components of the mucus layer overlying the intestinal epithelial cells, which maintains physiological homeostasis. Altered mucin expression is associated with disease progression. Expression of MUC4 decreases in colorectal cancer (CRC); however, its functional role and implications in the intestinal pathology in CRC are not studied well. Therefore, we generated a genetically engineered Muc4 knockout (Muc4-/-) CRC mouse model by crossing with Muc4-/- and Apc^flox/flox mice in the presence of colon-specific inducible Cre. We observed that deficiency of Muc4 results in an increased number of macroscopic tumors in the colon and rectal region and leads to poor survival. …

Endoscopic Management Of Complex Colorectal Polyps: Current Insights And Future Trends, Rupinder Mann, Mahesh Gajendran, Chandraprakash Umapathy, Abhilash Perisetti Md, Hermant Goyal, Shreyas Saligram, Juan Echavarria

PCI Publications and Projects

Most colorectal cancers arise from adenomatous polyps and sessile serrated lesions. Screening colonoscopy and therapeutic polypectomy can potentially reduce colorectal cancer burden by early detection and removal of these polyps, thus decreasing colorectal cancer incidence and mortality. Most endoscopists are skilled in detecting and removing the vast majority of polyps endoscopically during a routine colonoscopy. Polyps can be considered “complex” based on size, location, morphology, underlying scar tissue, which are not amenable to removal by conventional endoscopic polypectomy techniques. They are technically more challenging to resect and carry an increased risk of complications. Most of these polyps were used to …

An Ensemble-Based Deep Convolutional Neural Network For Computer-Aided Polyps Identification From Colonoscopy, Pallabi Sharma, Bunil Kumar Balabantaray, Kangkana Bora, Saurav Mallik, Kunio Kasugai, Zhongming Zhao

Faculty, Staff and Student Publications

Colorectal cancer (CRC) is the third leading cause of cancer death globally. Early detection and removal of precancerous polyps can significantly reduce the chance of CRC patient death. Currently, the polyp detection rate mainly depends on the skill and expertise of gastroenterologists. Over time, unidentified polyps can develop into cancer. Machine learning has recently emerged as a powerful method in assisting clinical diagnosis. Several classification models have been proposed to identify polyps, but their performance has not been comparable to an expert endoscopist yet. Here, we propose a multiple classifier consultation strategy to create an effective and powerful classifier for …

Predicted Vitamin D Status And Colorectal Cancer Incidence In The Black Women's Health Study, Lauren E Barber, Kimberly A Bertrand, Jessica L Petrick, Hanna Gerlovin, Laura F White, Lucile L Adams-Campbell, Lynn Rosenberg, Hemant K Roy, Julie R Palmer

Faculty, Staff and Students Publications

BACKGROUND: Observational studies, mostly among White populations, suggest that low vitamin D levels increase colorectal cancer risk. African Americans, who are disproportionately burdened by colorectal cancer, often have lower vitamin D levels compared with other populations.

METHODS: We assessed predicted vitamin D score in relation to colorectal cancer among 49,534 participants in the Black Women's Health Study, a cohort of African American women followed from 1995 to 2017 through biennial questionnaires. We derived predicted vitamin D scores at each questionnaire cycle for all participants using a previously validated prediction model based on actual 25-hydroxyvitamin D values from a subset of …

Scope Of Artificial Intelligence In Gastrointestinal Oncology, Hermant Goyal Md, Syed A.A. Sheraz, Rupinder Mann, Zainab Gandhi, Abhilash Perisetti Md, Muhammad Aziz, Saurabh Chandan, Jonathan Kopel, Benjamin Tharian Md, Neil Sharma Md, Nirav Thosani

PCI Publications and Projects

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