Author Interviews, Cancer Research, Gastrointestinal Disease / 07.05.2025

MedicalResearch.com Interview with: [caption id="attachment_68401" align="alignleft" width="150"]Mohamed Tausif Siddiqui, MDThe study’s lead author and a Gastroenterology fellow Cleveland Clinic. Dr. Siddiqui[/caption] Mohamed Tausif Siddiqui, MD The study’s lead author and a Gastroenterology fellow Cleveland Clinic. MedicalResearch.com: What is the background for this study? Response: Our study looked at how the stage of gastric cancer diagnosis has changed over the past two decades in the U.S., using national SEER data. Gastric cancer has long been a challenge because it’s often diagnosed late, when treatment options are limited and survival rates are poor. But with advancements in endoscopic technology—like high-definition imaging, narrow-band imaging, and endoscopic ultrasound—we wanted to see if these tools were making a difference in catching cancers earlier.
Author Interviews, Cancer Research, Colon Cancer, Gastrointestinal Disease, HPV / 07.05.2025

MedicalResearch.com Interview with: [caption id="attachment_68399" align="alignleft" width="150"]Ashley Robinson, MD, lead authorSecond-year internal medicine resident Advocate Lutheran General Hospital Dr. Robinson[/caption] Ashley Robinson, MD, lead author Second-year internal medicine resident Advocate Lutheran General Hospital MedicalResearch.com: What is the background for this study? Response: Briefly, anal cancer makes up around 1% of gastrointestinal cancers and more than 90% of all anal cancers are caused by chronic human papillomavirus or HPV infections. In previous research, it has been noted that women over the age of 65 have rates that were increasing more than other groups and myself along with my colleagues and the principal investigator of this project, Dr. Eli Ehrenpreis, wanted to further characterize these findings, looking into more specific details of these previously noted trends. Using data from a public database ran by the National Cancer Institute called the Surveillance, Epidemiology and End Results program, also known as SEER, and their statistical analysis software, SEER*Stat, we analyzed anal cancer incidence trends, looking at differences between sex, age, and ethnicity in order to further identify specific groups that have more rapidly increasing rates than others.
Author Interviews, Gastrointestinal Disease, Genetic Research, Hepatitis - Liver Disease / 25.04.2025

MedicalResearch.com Interview with: [caption id="attachment_68138" align="alignleft" width="125"]Ashley Jowell, MD, Internal Medicine Resident Physician Duke University  Dr. Jowell[/caption] Ashley Jowell, MD, Internal Medicine Resident Physician Duke University   [caption id="attachment_68139" align="alignleft" width="125"]Cynthia Moylan, MDAssociate Professor of Medicine, Division of Gastroenterology Duke University Health System Dr. Moyland[/caption] Cynthia Moylan, MD Associate Professor of Medicine, Division of Gastroenterology Duke University Health System       MedicalResearch.com: What is the background for this study? Response: Metabolic dysfunction can lead to several health problems including metabolic dysfunction associated steatotic liver disease (MASLD), is driven by different factors, including: a person’s behavioral or lifestyle factors, environmental factors, and genetics. Limited research exists regarding genetic , epigenetic, or other factors that might impact development of metabolic dysfunction and MASLD. Our group has previously shown that alterations in DNA methylation (a type of epigenetic change), identifiable both in liver tissue and in blood, associate with MASLD and its progression to more severe liver disease.  Whether DNA methylation that impacts imprinted gene expression also associates with metabolic dysfunction and MASLD risk remains largely unknown. In this project, we explored imprinted genes: imprinting is a normal process that regulates genes by silencing one parental copy (either the maternal or the paternal) so that only one copy is expressed. Imprinting is an important biological process for development and has a disproportionate impact on disease  - in fact, imprinted genes are hypothesized to affect 1-6% of the human genome. We sought to explore how altered DNA methylation of imprint control regions (ICRs) that help ‘control’ these imprinted genes might impact development of metabolic dysfunction in children (and hence potentially even in adults).
Author Interviews, Cancer Research, Genetic Research / 25.04.2025

[caption id="attachment_68124" align="alignleft" width="125"]MedicalResearch.com Interview with:Ulysses Ribeiro M.D., PhD Associate Professor of Digestive Surgery Instituto do Câncer do Estado de São Paulo Dr. Ribeiro[/caption] MedicalResearch.com Interview with: Ulysses Ribeiro M.D., PhD Associate Professor of Digestive Surgery Instituto do Câncer do Estado de São Paulo MedicalResearch.com: What is the background for this study? Response: Gastric cancer (GC) is one of the most common malignancies worldwide, and the 3th leading cause of cancer-related death. Although the diagnosis and treatment have substantially improved in recent years, the five-year survival rate of gastric cancer is still low due to local recurrence and distant metastasis. Gastric cancer is a complex and heterogeneous disease that involves a series of genetic, epigenetic and phenotypic changes. Still, differences in prognosis and response to chemotherapy or immunotherapy are frequently seen in tumors with the same histological type and stage due to various genetic mutations and abnormal signaling pathways underlying the progression of this disease. Thus, the purpose of this study was to perform a whole-gene sequencing to identify variants in genes with prognostic value in patients with gastric cancer who underwent curative surgery.
Author Interviews, Cost of Health Care, Gastrointestinal Disease, Health Care Systems / 20.05.2024

MedicalResearch.com Interview with: [caption id="attachment_61735" align="alignleft" width="183"]Laura Targownik, MDLead author and Clinician-Investigator Mount Sinai Hospital in Toronto Departmental Division Director, Gastroenterology and Hepatology University of Toronto Dr. Targownik[/caption] Laura Targownik, MD Lead author and Clinician-Investigator Mount Sinai Hospital in Toronto Departmental Division Director, Gastroenterology and Hepatology University of Toronto MedicalResearch.com: What is the background for this study? Was there a difference in the types of patients or need for surgery seen by the female/male physicians? Response: The background for this study is that there is an emerging body of literature that having a female physician leads to better patient outcomes in many health care settings, especially amongst patients undergoing surgery or being admitted to hospital.  However, this has not previously been evaluated in gastroenterology.  Female and male gastroenterologists may have different styles of practice on average, and this potentially could lead to differences in how patients engage with the health care system following an initial assessment.
Author Interviews, Gastrointestinal Disease, Immunotherapy / 17.05.2023

MedicalResearch.com Interview with: [caption id="attachment_60430" align="alignleft" width="200"]Marla Dubinsky, M.D.Professor of Pediatrics and Medicine Co-director of the Susan and Leonard Feinstein IBD Clinical Center Chief of the Division of Pediatric Gastroenterology and Nutrition Icahn School of Medicine at Mount Sinai Prof. Dubinsky[/caption] Marla Dubinsky, M.D. Professor of Pediatrics and Medicine Co-director of the Susan and Leonard Feinstein IBD Clinical Center Chief of the Division of Pediatric Gastroenterology and Nutrition Icahn School of Medicine at Mount Sinai     MedicalResearch.com: What is the background for this study? How does MIRIKIZUMAB differ from other medications for UC? Response: This is a phase 2 study to assess the PK (pharamcokinetics), safety and efficacy of mirikizumab in pediatric ulcerative colitis (UC). Mirikizumab is a humanized monoclonal antibody that specifically binds to the p19 subunit of interleukin-23, a key inflammatory mediator in inflammatory bowel disease.
Author Interviews, Diabetes, Gastrointestinal Disease / 04.05.2023

MedicalResearch.com Interview with: Celine B. E. Busch, Research Associate Gastroenterology and Hepatology Standard PhD Candidate Dr. Jacques Bergman Professor, Gastroenterology and Hepatology Amsterdam UMC MedicalResearch.com: What is the background for this study? Would you describe the ReCET procedure? Response: Currently more than 400 million people worldwide have type 2 diabetes (T2D) and these numbers are rapidly increasing. At the moment there is no treatment option available that effectively treats the root cause of T2D, i.e. insulin resistance, the increasing loss of response to our body’s own insulin. T2D is generally treated with drug therapy, yet drug therapy can be expensive, requires the patient to take their drugs every day, and at best “controls” the disease without actually resolving it. Despite the availability of many T2D drugs, less than 50% of all T2D have adequately controlled blood glucose levels. The duodenum (the first part of the small bowel, immediately distal to the stomach) has proven to play a crucial role in glucose homeostasis in T2D. We know from bariatric surgery, that bypassing the duodenum by an Roux-en-Y Gastric Bypass has an immediate and profound effect on T2D by improving the sensitivity to the body’s own insulin resistance. However, performing invasive bariatric surgery for many T2D is not feasible. But we can reach the duodenum easily via upper GI endoscopy. ReCET is a single endoscopic procedure, performed under deep sedation. The ReCET catheter is advanced next to the scope, and once it is placed in the duodenum the flex circuit is unfolded until it touches the full circumference of the duodenum. The flex circuit contains the electrodes that create a pulsed electric field which “electroporates” the cells. Electroporation irreversibly makes small, that cause the cell to die of natural cell death, or apoptosis. This process can be precisely titrated for its depth of damage and does not generate heat thus avoiding damage to deeper wall layers, a major hurdle for standard endoscopic ablation techniques. The ReCET procedure lasts about 60 minutes to treat a 10-15 cm segment of the duodenum. The procedure does not cause significant side-effects and patients are discharged the same day.
Author Interviews, Biomarkers, Cancer Research, Hepatitis - Liver Disease / 18.05.2022

MedicalResearch.com Interview with: [caption id="attachment_59163" align="alignleft" width="70"]Yujin Hoshida Dr. Hoshida[/caption] Yujin Hoshida, MD, PhD Director, Liver Tumor Translational Research Program CPRIT Scholar in Cancer Research Harold C. Simmons Comprehensive Cancer Center Professor of Internal Medicine Division of Digestive and Liver Diseases, Department of Internal Medicine University of Texas Southwestern Medical Center MedicalResearch.com:  What is the background for this study?  Response: Liver cancer is the fastest rising cause of cancer-related death in the U.S. with the sharply growing epidemic of obesity and non-alcoholic fatty liver disease. Late diagnosis at advanced stage is the main reason for the poor survival of liver cancer patients. Therefore, professional societies recommend semi-annual liver cancer screening for early diagnosis. However, it's practically infeasible due to the vast size of patient population (estimated to affect one-fourth of population). Thus, we urgently need tools to identify a small subset of patients with elevated liver cancer risk, on which we can concentrate our effort of screening.
Author Interviews, Gastrointestinal Disease, Race/Ethnic Diversity / 23.05.2021

MedicalResearch.com Interview with: [caption id="attachment_57461" align="alignleft" width="142"]Edward L. Barnes, MD, MPH Assistant Professor of Medicine Division of Gastroenterology and Hepatology Dr. Barnes[/caption] Edward L. Barnes, MD, MPH Assistant Professor of Medicine Division of Gastroenterology and Hepatology UNCHealth Care and a medical advisor to the Global Healthy Living Foundation MedicalResearch.com: What is the background for this study? Response: Although historically inflammatory bowel diseases (IBDs) have been considered diseases of non-Hispanic whites, the current burden of Crohn’s disease (CD) and ulcerative colitis (UC) in minority populations is largely unknown. I n our study, we evaluated the relative prevalence of CD and UC across racial and ethnic groups within the National Patient-Centered Clinical Research Network (PCORnet) and compared the racial/ethnic distribution of IBD in PCORnet to that of the United States (US) census data, the overall PCORnet population, and PCORnet patients with selected immune-mediated conditions.
Author Interviews, Gastrointestinal Disease, Imperial College, Probiotics, Pulmonary Disease, Weight Research / 16.05.2021

MedicalResearch.com Interview with: [caption id="attachment_57422" align="alignleft" width="187"]Benjamin Mullish PhD NIHR Academic Clinical Lecturer Department of Metabolism Digestion and Reproduction Imperial College Dr. Mullish[/caption] Benjamin Mullish PhD NIHR Academic Clinical Lecturer Department of Metabolism Digestion and Reproduction Imperial College MedicalResearch.com: What is the background for this study? Which probiotic did you use and why?  Response: We recently reported the results of a randomized, double-blind placebo-controlled trial in which participants who were overweight or with obesity (aged between 30-65 years of age) were randomized to receive probiotics or placebo for six months.  The primary focus was on weight loss and metabolism.  The probiotic used was Lab4P, containing three different strains of Bifidobacteria and two of Lactobacilli, which have shown to be safe and efficacious for use in rodent models and earlier clinical studies. Of note, probiotics have also been shown to have other beneficial effects upon human health.  Previous studies have suggested that they may have a role in preventing upper respiratory tract infections (URTIs) in healthy people and children; however, this has not been explored in older people or overweight/ people with obesity, even though such groups have higher rates of URTIs. We looked back at our trial, and reviewed symptom diaries completed by participants daily during the study.  We were looking at recorded symptoms most consistent with upper respiratory tract symptoms (including cough, wheezing and headache), and explored if rates of these were different between those participants taking probiotics compared to placebo over the six month course of the study.  
Author Interviews, Gastrointestinal Disease, Hepatitis - Liver Disease, Occupational Health, Outcomes & Safety / 30.04.2020

MedicalResearch.com Interview with: [caption id="attachment_54062" align="alignleft" width="195"]Dr-Debashis Reja D. Debashis Reja[/caption] Mishal Reja, MD,  MD Resident in Internal Medicine Robert Wood Johnson University Hospital MedicalResearch.com: What is the background for this study? Response: World Trade Center first responders were exposed to environmental toxicants that have resulted in negative health consequences. Gastrointestinal aerodigestive disorders such as GERD and Barrett’s esophagus have been frequently reported in this population. Additionally, an increasing body of literature has shown that fatty liver disease is not only secondary to metabolic syndrome, diabetes, and obesity, as previously thought, but can also result from environmental and industrial toxicants. Chemicals such as Vinyl Chloride, Tetrachloroethylene, Perchloroethylene, and many others are frequently found in industrial occupations and have resulted in fatty liver disease, steatohepatitis, cirrhosis, and hepatocellular carcinoma. Many of these chemicals were also present at ground zero, thus exposing many of first responders to the hepatotoxic effects of these chemicals. To date this is the first study to look at liver disease in World Trade Center first responders.
Author Interviews, C. difficile, Gastrointestinal Disease, Imperial College, Infections, Transplantation / 30.04.2020

MedicalResearch.com Interview with: [caption id="attachment_54022" align="alignleft" width="149"]Prof. Julian Marchesi Prof. Marchesi[/caption] Prof. Julian Marchesi PhD Professor of Digestive Health Faculty of Medicine, Department of Metabolism, Digestion and Reproduction   [caption id="attachment_54021" align="alignleft" width="149"]Dr.-Benjamin-Mullish Prof. Mullish[/caption] Dr. Benjamin Mullish PhD Faculty of Medicine, Department of Metabolism, Digestion and Reproduction NIHR Clinical Lecturer Imperial College London       MedicalResearch.com: What is the background for this study? Response: Many patients are colonized with bacteria that are resistant to nearly all the antibiotics that we currently have. This antibiotic resistance is a huge public health problem, not least because it may lead to the scenario where a bacterial species moves from the gut and into the bloodstream, causes an infection, and cannot be treated. Such scenarios particularly occur in patients who are particularly prone to getting multiple and frequent courses of antibiotics; this may include patients with particular kidney conditions (who may be vulnerable to recurrent urinary tract infections (UTIs)), and patients with blood cancers (such as leukaemia, who have weak immune systems and are therefore prone to infections). Furthermore, in both sets of patients, to help treat their disease, they may be offered transplants, either a new kidney or new bone marrow. When this transplant happens, the clinician needs to ‘switch off’ their immune system to allow the transplant to work. When the immune system is dialled down, it can no longer stop any invading bacteria, increasing the chance of antibiotic resistance bacteria causing infections, which frequently leads to patient death. 
Author Interviews, Baylor University Medical Center Dallas, Gastrointestinal Disease / 28.05.2019

MedicalResearch.com Interview with: [caption id="attachment_49399" align="alignleft" width="115"]Dr. Rhonda Souza, MDBaylor University Medical CenterCenter for Esophageal ResearchDallas, TX 75246 Dr. Souza[/caption] Dr. Rhonda Souza, MD Baylor University Medical Center Center for Esophageal Research Dallas, TX 75246  MedicalResearch.com: What is the background for this study?   Response: Eosinophilic esophagitis (EoE) is a modern disorder of the esophagus caused by an allergy to certain foods. EoE causes esophageal symptoms like difficulty swallowing and heartburn and is diagnosed when biopsies of the esophagus taken during endoscopy show numerous eosinophils, which are a type of inflammatory blood cell.  There are few established treatments for EoE. One such treatment is a diet that eliminates the offending food allergens, and another is to use steroids to reduce the number of eosinophils in the esophagus. However, the most common treatment for adults with eosinophilic esophagitis is to use proton pump inhibitors (PPIs), which block the proton pumps in stomach cells that make acid.  In earlier studies, we found that PPIs also can block proton pumps in esophageal cells.  Those proton pumps are activated by chemicals that the body produces in response to allergens including interleukin (IL)-13 or IL-4.  Il-13 and IL-4, which cause the esophagus to produce eotaxin-3, a molecule that attracts eosinophils. What remained unknown, however, was the mechanism whereby these interleukins activate proton pumps in the EoE esophagus. In our present study, we explored whether IL-4 works by increasing calcium levels in esophageal cells from EoE patients.