ABOUT US

The Clinical and Translational Epidemiology Unit at Massachusetts General Hospital advances epidemiologic investigation for the translation of discoveries into effective clinical interventions in chronic disease.

 

Our Team

Faculty

Andrew T. Chan, MD, MPH - Chief / Director

Dr. Andrew T. Chan is Chief of the Clinical and Translational Epidemiology Unit (CTEU) at Massachusetts General Hospital (MGH), Director of Cancer Epidemiology at the MGH Cancer Center, and Professor of Medicine at Harvard Medical School (HMS). He also co-leads the Cancer Epidemiology Program at the Dana-Farber Harvard Cancer Center. His research broadly aims to advance epidemiological investigation for the translation of discoveries into effective clinical interventions. His current focus is on chronic digestive diseases, including gastrointestinal cancer (colorectal, esophageal, gastric), inflammatory bowel disease, diverticulitis, and gastrointestinal bleeding. His group utilizes molecular approaches encompassing genetic, metabolomic, proteomic, and biochemical platforms applied to populations ranging from large cohort studies to small biomarker-driven clinical trials. He also has an active program studying the oral and gut microbiome as a determinant and mediator of chronic disease.

Dr. Chan earned his MD from Harvard Medical School and a MPH from Harvard T.H. Chan School of Public Health. He completed his internal medicine residency, chief residency, and gastroenterology fellowship at MGH. He is the Stuart and Suzanne Steele MGH Research Scholar. He is an Elected Fellow of the American Society of Clinical Investigation. His work is supported by grants from the National Institutes of Health, the National Cancer Institute, Stand Up to Cancer, Cancer Research UK, the Crohn’s and Colitis Foundation, and the Damon Runyon Cancer Research Foundation.  He is chair of the GI Oncology section of the American Gastroenterological Association Council and the Molecular Epidemiology Group of the American Association for Cancer Research. 

 

Hamed Khalili, MD, MPH - Associate Director

Dr. Hamed Khalili is the Associate Director of CTEU, Physician Investigator in the CTEU, Director of Clinical Research in Inflammatory Bowel Disease (IBD) in the Division of Gastroenterology, a gastroenterologist specialized in IBD at MGH and an Assistant Professor of Medicine at HMS.

His interests include clinical and translational research in the field of IBD. He aims to better understand the environmental risk factors, particularly dietary, reproductive, and lifestyle factors, for the development IBD. He has been involved in NIH-funded research to study the complex interplay between common genetic risk loci and gut microbial environment on risk and progression of IBD.

Dr. Khalili earned his MD and completed his training in internal medicine at University of Texas Southwestern Medical Center. Before joining the faculty at MGH, he completed Gastroenterology and Advanced IBD fellowship at MGH and obtained an MPH from Harvard T.H. Chan School of Public Health.

Ashwin Ananthakrishnan, MD, MPH

Dr. Ashwin Ananthakrishnan is a Physician Investigator in the CTEU, the Director of the Crohn’s and Colitis Center at MGH, and Associate Professor at HMS. He completed his medical school training at JIPMER in India and subsequently obtained his MPH at Johns Hopkins University Bloomberg School of Public Health. After completing his Gastroenterology fellowship at the Medical College of Wisconsin, he joined the faculty at MGH where he is involved in clinical care, research, and teaching. In addition to his clinical expertise in the management of patients with complex inflammatory bowel disease (IBD), he has been involved in NIH-funded investigations using large prospective cohorts to define for the first time an important role for factors such as diet, vitamin D, stress, and sleep and determine how they may be altered to prevent disease or improve the course of established IBD. He is also conducting studies aimed to understand how an individual¹s genetics and composition of their intestinal microbiome may predispose them to developing IBD, and how they can be used to determine which treatments may be of greatest benefit in each patient. He has published over 180 manuscripts, has co-authored a textbook in IBD, and serves on multiple Editorial Boards of major GI journals.

Kristin Burke, MD, MPH


Dr. Kristin Burke is a Physician Investigator in the CTEU, gastroenterologist at the Crohn’s and Colitis Center at MGH and an Instructor of Medicine at HMS.
Dr. Burke earned her MD from the University of Massachusetts Medical School.  She completed her medicine residency and chief resident year at Beth Israel Deaconess Medical Center.  She then completed both general gastroenterology and inflammatory bowel disease fellowships at MGH.  She obtained a MPH at Harvard T.H. Chan School of Public Health.  Through large epidemiologic and translational (GWAS, metabolomic, microbiome) studies, Dr. Burke’s primary research focus is in understanding the pathogenesis and treatment outcomes of inflammatory bowel disease and microscopic colitis to bolster precision medicine and enhance patient care.   

Kathleen Corey, MD, MPH

Dr. Kathleen Corey is a Physician Investigator in the CTEU, Director of the MGH Fatty Liver Clinic in the Division of Gastroenterology and Assistant Professor of Medicine at HMS.

Dr. Corey's clinical interests include all areas of hepatology including non-alcoholic fatty liver disease (NAFLD), viral hepatitis including hepatitis B, C and D infection, autoimmune hepatitis, cholestatic liver disease including primary biliary cirrhosis and primary sclerosing cholangitis. In addition, Dr. Corey treats patients with hereditary forms of liver disease including hemochromatosis and alpha-1-antitrypsin disease. Dr. Corey is also a transplant hepatologist and evaluates patients in need of liver transplantation and cares for patients after liver transplant. Dr. Corey also performs endoscopies including diagnostic and therapeutic upper endoscopy and colonoscopy.

Dr. Corey's research focuses on non-alcoholic fatty liver disease and the development of non-invasive biomarkers for the diagnosis and monitoring of NAFLD.  Dr. Corey has lectured regionally and nationally on NAFLD.

David A. Drew, PhD


Dr. David Drew is the Director of the Biobanking in the CTEU and the Division of Gastroenterology at MGH, Instructor in Investigation in the CTEU, and Instructor of Medicine at HMS.
 

His long-term research has focused on the interception and prevention of gastrointestinal disorders, primarily GI cancers, through chemoprevention, lifestyle modification, or enhanced endoscopic screening methods. Recently, this interest has been focused on the molecular mechanisms, particularly those influenced by the gut microbiome, driving gastrointestinal disease and cancer, and the mechanisms by which pharmacologic agents, such as aspirin, prevent or contribute to the development of GI disorders. Broadly, his training has provided him strong foundations in basic and translational research, the gut microbiome, colorectal carcinogenesis, precision prevention, epidemiology/biostatistics, and cancer genetics.

Dr. Drew earned a PhD in Biomedical Science from the University of Connecticut and also holds a B.S. in Biochemistry/Biophysics from Rensselaer Polytechnic Institute.

Manish Gala, MD

Dr. Manish Gala is a Physician Investigator in the CTEU, an attending gastroenterologist at MGH and an Instructor of Medicine at HMS. His research emphasis is in how germline variation shapes tumor evolution, cancer risk, and response to precision therapies. His laboratory is funded by the National Institutes of Health and the Department of Defense. Dr. Gala earned his MD at Harvard Medical School. He completed his training in internal medicine at Stanford University before completing gastroenterology fellowship at MGH.

Jennifer Ho, MD

Dr. Jennifer Ho is a cardiologist in the Heart Failure and Transplantation section of the MGH Cardiology Division and Assistant Professor of Medicine at HMS. She sees patients with advanced heart failure.

Dr. Ho is a faculty member of the Cardiovascular Research Center, and also maintains an affiliation with the Framingham Heart Study. Her laboratory is focused on clinical and translational patient-oriented investigations to understand mechanisms driving heart failure and cardiometabolic disease, with a particular focus on heart failure with preserved ejection fraction. She is a recipient of the MGH Claflin Distinguished Scholar Award (2017), an MGH Hassenfeld Scholar Award (2016), and multiple NIH grants to support her research laboratory.

Amit Joshi, MBBS, PhD

Dr. Amit Joshi is an Instructor in Investigator in the CTEU, and an Instructor in Medicine at HMS. He is a molecular epidemiologist by training, with a background in clinical medicine.

His research interests include studying the risk of breast, prostate and colorectal cancers, and gastrointestinal diseases, using high-dimensional genomic data. To study these outcomes, he has conducted genome-wide association studies (GWAS) and studies of gene-gene and gene-environment interactions on the relative and absolute risk scales. He is also currently involved in studying gut microbial and metabolomic risk factors of symptomatic gallbladder disease, cholecystectomy outcomes, and colorectal cancer.

Dr. Joshi earned his MBBS from B.J. Medical College, Ahmedabad, India. He holds a MS in Molecular Epidemiology prior to obtaining a PhD in Molecular Epidemiology from University of Southern California.

 

Bharati Kochar, MD, MSc

 

Dr. Bharati Kochar is a Physician Investigator in the CTEU, a gastroenterologist specializing in inflammatory bowel diseases (IBD) at MGH and Instructor in Medicine at HMS. She completed medical school at Brown University and trained in Internal Medicine at Johns Hopkins Hospital. Subsequently, she completed a fellowship in gastroenterology & hepatology as well as advanced training in IBD at the University of North Carolina in Chapel Hill, where she was on staff prior to joining the faculty at MGH. She also obtained a Master’s of Science in Clinical Research at UNC’s Gillings School of Global Public Health.  

Dr. Kochar’s interests are around studying IBD in older adults. She currently has a career development award from the Crohn’s and Colitis Foundation to study pharmacoepidemiology of biologic agents in older adults with IBD.

Paul Lochhead, MBChB, PhD


Dr. Paul Lochhead is a Physician Investigator in the CTEU, an Instructor in Medicine at HMS and a clinician in the Crohn’s and Colitis Center at MGH. He trained as a gastroenterologist in the UK and subsequently completed advanced clinical training in inflammatory bowel diseases at MGH. During his doctoral studies, Paul spent a year as a Frank Knox Memorial Fellow at the Dana-Farber Cancer Institute where he worked on the molecular pathology and epidemiology of colorectal cancer survival. Paul joined the CTEU in 2015 and has been involved in a number of gastrointestinal epidemiologic studies involving the Harvard prospective cohorts. Paul’s current research interests include investigating the role of medication, lifestyle and environmental factors in the development and progression of IBD and other GI disorders. Paul is supported by a career development award from the Crohn’s and Colitis Foundation.

Alisa Manning, PhD

Dr. Alisa Manning is an Assistant Investigator in the CTEU, an Instructor of Medicine at HMS, an Associated Scientist at Program in Medical and Population Genetics at Broad Institute.

Dr. Manning is a statistical geneticist with an established focus on glycemic traits and a recent focus on integrative analyses of whole genome sequence data. She has been exploring the link between genetic associations and phenotype refinement since 2005. Her Lab studies the molecular and mechanistic basis of insulin resistance and obesity and is known for developing statistical strategies for translational epidemiology using whole genome sequence association studies, physiological and molecular studies in humans and integrative analytics, with the overarching goal to understand the relationship between Genes, Environment and Disease and to foster a stimulating and interdisciplinary research environment with local and international collaborators on a range of projects.

Dr. Manning earned her PhD from Boston University.

Tracey Simon, MD, MPH


Dr. Tracey Simon is a Physician Investigator in the CTEU, hepatologist in the Division of Gastroenterology at MGH, and an Instructor of Medicine at HMS. She cares for patients with chronic liver diseases, including nonalcoholic fatty liver disease (NAFLD). Her research program focuses on the prevention of cirrhosis and hepatocellular carcinoma (HCC), particularly among patients with NAFLD. She conducts epidemiologic and clinical outcomes research in large population-based datasets, and integrates clinical, genetic and molecular data from liver histology cohorts, to identify novel strategies for the prevention of cirrhosis and HCC.

Dr. Simon earned her MD from Brown University, and an MPH from Harvard T.H. Chan School of Public Health. She completed Internal Medicine residency at the Brigham and Women’s Hospital, and fellowship in Gastroenterology & Hepatology at MGH. Her research has been funded by the National Institutes of Health, the American Association for the Study of Liver Diseases (AASLD), by the MGH Executive Committee on Research (ECOR), and by the Boston Nutrition Obesity Research Center (BNORC). She is also a member of the Cancer Epidemiology Program at Dana Farber / Harvard Cancer Center.

Mingyang Song, MD, ScD

Dr. Mingyang Song is an Instructor in Investigation in the CTEU, Assistant Professor of Medicine at MGH and Assistant Professor of Clinical Epidemiology and Nutrition at Harvard T.H. Chan School of Public Health. His research focuses on prevention and survivorship of colorectal cancer. One aspect of his work is to integrate large-scale observational studies with biomarker-based randomized clinical trials to identify novel nutritional and gut microbiota-targeted strategies for cancer prevention and treatment. Another part of his work involves integration of electronic health record (EHR) data with molecular profiling for developing cost-effective risk assessment tools for precision cancer screening and surveillance. He was awarded the NextGen Star by the American Association for Cancer Research. His current research is supported by the National Cancer Institute and American Cancer Society. The ultimate goal of his research is to translate epidemiologic advances into the clinic for improved cancer prevention and treatment.

Currently, he is a co-Investigator of the MICRObiome Among Nurses (MICRO-N) Study, a large prospective microbiome study of 25,000 women in the Nurses’ Health Study II. He is also a member of the Cancer Epidemiology and Gastrointestinal Malignancies Programs at Dana-Farber /Harvard Cancer Center.

Kyle Staller, MD, MPH

Dr. Kyle Staller is a Physician Investigator in the CTEU, gastroenterologist and the director of the Gastrointestinal Motility Laboratory at MGH. He is also an assistant professor of medicine at HMS. Dr. Staller specializes in disorders of gastrointestinal motility and neurogastroenterology and is a faculty member of the MGH Center for Neurointestinal Health and the MGH Center for Pelvic Floor Disorders. His clinical practice is devoted to treating patients with GI motility disorders and disorders of brain-gut interaction. 

Dr. Staller’s research interests include clinical and epidemiologic research in neurogastroenterology and motility with particular interest in chronic constipation, irritable bowel syndrome (IBS), fecal incontinence, eating disorders, and women’s health in functional GI diseases. His research has been published in medical journals across the spectrum of GI, and he also serves as a medical liaison to the media with appearances in national news outlets as well as health and wellness magazines.

Dr. Staller received his medical degree from Harvard Medical School and trained at MGH for residency and gastroenterology (GI) fellowship. He also completed formal training in epidemiology culminating in a MPH from the Harvard T.H. Chan School of Public Health and subspecialty training in neurogastroenterology and motility at MGH before joining the faculty.

Erica Warner, ScD, MPH

Dr. Erica Warner is an Assistant Investigator in the CTEU and an Assistant Professor at HMS where she conducts epidemiological research on cancer. Her research studies how lifestyle, behavioral, and genetic factors affect cancer screening, and intermediate markers of cancer risk, cancer risk and survival, with an interest in molecular subtypes and racial/ethnic and socioeconomic health disparities. Dr. Warner is a member of the steering committee of the Boston Breast Cancer Equity Coalition, Research Director for the Boston Mammography Cohort Study, and Project Director for the National Consortium on Psychosocial Stress, Spirituality, and Health. She is a 2018 winner of the Deans Community Service Award from the Office for Diversity Inclusion and Community Partnership at Harvard Medical School, and was named a 2019 Diversity Scholar by the Nutrition Obesity Research Center at Harvard, and received the MGH Physician/Scientist Development Award. Dr. Warner has a bachelor's degree from Duke University and a master's in public health degree (MPH) from Yale School of Public Health. Dr. Warner completed her doctorate, and the Alonzo Smythe Yerby Postdoctoral Fellowship, both in Epidemiology, at the Harvard T.H. Chan School of Public Health.

Long Nguyen, MD, MS

Dr. Long H. Nguyen is an Assistant in Medicine and Gastroenterology at the Massachusetts General Hospital and Harvard Medical School. He previously attended the University of California, Los Angeles, followed by graduate studies at Stanford University where he obtained an M.D. in Medicine and M.S. in Epidemiology. He went on to complete a clinical and research fellowship in gastroenterology at MGH where he was mentored by Dr. Andrew T. Chan and Dr. Curtis Huttenhower.

 

He has since established his own independent research program focused on the dietary and lifestyle determinants of the microbiome with a particular interest in sulfur metabolizing bacteria and their role in colorectal cancer and inflammatory bowel disease. He is currently funded by an American Gastroenterological Association Research Scholars Award.

 

Research Fellows

Chun-Han Lo, MD, MPH


Dr. Chun-Han Lo is a postdoctoral research fellow at Harvard T.H. Chan School of Public Health and MGH. He received his medical degree at Chung Shan Medical University, Taichung, Taiwan in 2017 and subsequently obtained his MPH degree at the Harvard T.H. Chan School of Public Health where he currently works under the joint mentorship of Dr. Andrew Chan, Dr. Mingyang Song and Dr. Ashwin N. Ananthakrishnan. His research focuses on utilizing large prospective cohorts to determine the influence of dietary pattern, lifestyle factors, and underlying diseases on the risk of developing colorectal cancer/polyps and inflammatory bowel disease.

Ming-ming He, MD


Dr. Ming-ming He is a postdoc in Dr. Mingyang Song’s group. She is an attending medical doctor from the Sun Yat-sen University Cancer Center (SYSUCC), specializing in gastrointestinal (GI) cancer, both diagnosis / treatment and research, as well as a collaborative, studious medical oncologist with a strong medical background, passionate about cancer epidemiology, and translating cancer research into cancer prevention and control.

Wenjie Ma, MBBS, ScD


Wenjie Ma joined the CTEU in 2017 with extensive training and research experience in nutritional, genetic, and molecular epidemiology.  She currently works in Dr. Andrew Chan’s research group. Her research interests include understanding the etiology and developing intervention strategies for colorectal cancer, diverticulitis, and cardiovascular diseases and examining the role of gut microbiome in inflammation and diseases. Wenjie earned her ScD in Epidemiology from Harvard T.H. Chan School of Public Health. Before coming to the US, she graduated from Peking University in 2012 with a Bachelor’s degree in Medicine.

Sohee Kwon, MD, MPH

Sohee Kwon is a Research Fellow in the Clinical and Translational Epidemiology Unit, Division of Gastroenterology, at Massachusetts General Hospital and Harvard Medical School.

Her research focuses on the prevention of gastrointestinal cancers including colorectal, gastric, and esophageal cancer using chemopreventive agents, dietary interventions, and lifestyle modifications.

Sohee earned her MD from Pusan National University in South Korea and an MPH from Harvard T.H. Chan School of Public Health.

Raaj Mehta, MD


Dr. Raaj Mehta is a clinical and research fellow in gastroenterology at MGH. He is mentored by Dr. Andrew Chan.  His research interests lie at the intersection of epidemiology, microbiology, and immunology. He received an AB from Princeton University and an MD from Harvard University. He was a Fulbright scholar to Ecuador from 2010 to 2011 and a Howard Hughes Medical Institute Medical Research Fellow from 2014 to 2015. He plans to be an academic gastroenterologist.

Georgios Polychronidis MD, Dr.med, M.Sc.


Dr. Georgios Polychronidis is a postdoctoral research fellow in the Department of Epidemiology in the Harvard T.H. Chan School of Public Health. He is mentored by Dr. Mingyang Song. He graduated from the University of Ioannina Medical School and after joining the Heidelberg Transplantation Center for a research fellowship he completed his general surgery residency at the Department of General, Visceral and Transplant Surgery at the University Hospital Heidelberg. During his training he was a research scientist at the Study Center of the German Surgical Society and studied clinical trial management at the Beuth University of Applied Sciences. His research is mainly focused on evidence-based surgery and liver disease. Dr. Polychronidis has been awarded a two-year research fellowship from the German Research Foundation (DFG) to investigate the link between liver disease and colorectal neoplasia.

Magdalena Sevilla, PhD


Magdalena Sevilla is a postdoctoral researcher in Dr. Alissa Manning’s Lab. She received her master’s and PhD degree in Science at National Autonomous University of Mexico (UNAM). Magdalena is passionate about solving population health problems related to the highly prevalent metabolic diseases, particularly type 2 diabetes and its interaction with obesity and environmental factors. Her current research interest is in using mathematical models and complex biostatistics methods to integrate genetic, metabolomic, and environmental factors to understand the molecular mechanisms that underlie the risk to develop type 2 diabetes.

Liang Wang, MD


Dr. Liang Wang is a gastrointestinal surgeon from the First Affiliated Hospital of Sun Yat-sen University, China. He joined the CTEU at MGH and Harvard T.H. Chan School of Public Health in 2018 as a research fellow under the mentorship of Dr. Mingyang Song. His research interests include risk factors of colorectal cancer and the relationship between biomarker of fatty acids and colorectal serrated polyp and conventional adenoma.

Kenny Westerman, PhD


Kenny Westerman is a research fellow in the CTEU, interested in developing improved approaches to personalized nutrition using genomic and bioinformatic methods. He received his PhD in Biochemical and Molecular Nutrition from Tufts University, and is now a part of the Manning Laboratory, where his work involves the development of software for large-scale gene-environment interaction analysis and its application in uncovering novel gene-diet interactions. When not in the lab, he can often be found salsa dancing, playing the piano, or bargain hunting at Whole Foods.

Clinical Research Staff 

 

Clinical Research Project Manager

 

Marina Magicheva-Gupta, MPH 

Marina joined the Clinical and Translational Epidemiology Unit at Mass General in May 2019. She works as a Clinical Research Project Manager supporting multiple clinical trials in the prevention of gastrointestinal cancer using chemopreventative drugs and lifestyle interventions. Marina graduated from University of Massachusetts Lowell in 2018 with a master’s degree in Public Health. Prior to joining the CTEU, Marina worked as a program/project coordinator for the Massachusetts Department of Public Health supporting epidemiological research in maternal & child health.

Clinical Research Coordinators

Brianna Maia Leonardo, BS

Brianna Leonardo joined the Clinical and Translational Epidemiology Unit at MGH in July 2019. She graduated from University of Massachusetts Boston in 2019 with a BS in Biology and a minor in both Psychology and Cognitive Science. She works as a clinical research coordinator on several clinical trials focusing on the microbiome of gastrointestinal cancers and also biological characteristics that could be associated with the outcomes of gallbladder disease.

 

Zahra Fatehi, BS

Zahra Fatehi joined the Clinical and Translational Epidemiology Unit at MGH in August 2019. She graduated from the University of Massachusetts Amherst in 2019 with a dual degree in Biochemistry and Public Health. She works as a clinical research coordinator on several clinical trials studying GI cancer chemoprevention and gallbladder disease.

Alina Husain, BS

Alina Husain joined the Clinical and Translational Epidemiology Unit at MGH in May 2018 as a research intern and has worked as a clinical research coordinator since June 2020. She graduated from Brown University in 2020 with a BS in Neuroscience. Alina researches the association between aspirin and the gut microbiome within the Men’s Lifestyle Validation Study/Health Professionals Follow-up Study and works on several trials studying GI cancer chemoprevention.

Betsy Prezioso, AB

Betsy Prezioso joined the Clinical and Translational Epidemiology unit in June 2017 as a research intern and rejoined the team as a clinical research coordinator in August 2020. She graduated from Harvard University with an concentration in Human Developmental and Regenerative Biology with a secondary concentration in Folklore and Mythology. She works on several clinical trials, focusing on GI cancer prevention. 

Postdoctoral Fellows

 

Takuma Higurashi, MD, PhD

 

Dr. Higurashi is a post-doctoral research fellow in the CTEU.  He received his Medical Degree and Doctor of Philosophy at Yokohama City University (YCU) . He specialized endoscopic procedures, especially endoscopic submucosal dissection (ESD). His research focuses on prevention and survivorship of colorectal cancer.

 

Students

Xinchen Duan


Xinchen Duan graduated from Zhejiang University and joined the Master of medical science in clinical investigation program at Harvard medical school in July 2019. At CTEU, he has been working since September 2019 as a research intern on several clinical trials including studying the effects of aspirin on MIC1 levels.  He is jointly mentored by Dr. Andrew Chan and Dr. David Drew. His research interest is focused on gastrointestinal cancer, IBD, medical translation and pharm-economic study.

Chuanguo Guo, MBBS, MMed


Chuanguo Guo is a PhD student from the University of Hong Kong, China. He joined the CTEU in 2019 as a research visitor and is mentored by Dr. Andrew Chan. His research interests include the etiology of colorectal cancer and gastrointestinal bleeding. Chuanguo earned his MMed from the Shandong University and the MBBS from the Central South University.

Daniel Sikavi


Daniel Sikavi is an M.D. student at Harvard Medical School. His research interests include dietary and other environmental exposures that underlie gastrointestinal malignancies. He earned an A.B. in Ecology & Evolutionary Biology and a certificate in Global Health & Health Policy from Princeton University.

 

Faculty and Postdoctoral Fellow Alumni

Yin Cao, ScD, MPH


Dr. Yin Cao is currently at the University of Washington School of Medicine in St. Louis.

Xiasheng He, MD, PhD


Dr. Xiasheng He is a colorectal surgeon from China. His research focus is on colorectal inflammation and carcinogenesis. He joined the CTEU in 2017 as a research fellow and is currently working in the Department of Colorectal Surgery, the Six Affiliated Hospital, Sun Yat-sen University, Guangzhou, P.R. China. His current project includes dietary fiber and risk of colorectal adenoma.

Stuart Pong-Hong Liu, MD, MPH


Dr. Stuart Po-Hong Liu is a clinical investigator focusing on gastrointestinal and liver diseases. He earned his MPH degree at Harvard T.H. Chan School of Public Health with concentration in biostatistics and epidemiology. He worked at the Clinical Translational Epidemiology Unit at Massachusetts General Hospital, investigating diverticular disease, colorectal cancer, and inflammatory bowel disease and volunteered at Beth Israel Deaconess Medical Center, aiming to improve the outcome of liver cancer. He is currently a trainee in Physician-Scientist Training Program in Internal Medicine in UT Southwestern Medical Center.

Manol Jovani, MD, MPH


Dr. Jovani was a Research Fellow in the Clinical and Translational Epidemiology Unit, Division of Gastroenterology, at the MGH and Harvard Medical School.

His research projects include identification of risk factors for Barrett’s esophagus, identification of risk factors for diverticulitis, identification of early biomarkers of cancer incidence and cancer-related death, novel technologies for the identification of gastrointestinal malignancies, and quality improvement in colonoscopy.

Dr. Jovani earned an MD from the University of Bologna (Italy), specialized in Gastroenterology in Milan (Italy), and obtained an MPH from the Harvard T.H. Chan School of Public Health. He is currently a Therapeutic Endoscopy Fellow at Johns Hopkins Hospital, Division of Gastroenterology and Hepatology.

 

Clinical Research Staff Alumni

Clinical Research Project Manager

 

Madeline (Maddie) Schuck


Ms. Schuck was the clinical research project manager for the CTEU starting in 2015. In 2018, she left the CTEU to pursue training as a Physician Assistant at the MGH Institute of Health Professionals.

Clinical Research Coordinators

Jacqueline (Jackie) Joyce Flynn


Jackie Flynn joined the CTEU in June 2019. She graduated from the University of Massachusetts Boston in 2019 with a BS in Biology. She worked as a clinical research coordinator on several clinical trials studying dietary outcomes and GI cancer prevention and detection.  In 2020, she left the CTEU to pursue her DDS at Tufts School of Dental Medicine.

Dylan Christopher Zerjav


Dylan Zerjav joined the CTEU in June 2017. He graduated from Johns Hopkins University with a BS in Chemical & Biomolecular Engineering. He worked as a clinical research coordinator on several clinical trials focusing on gastrointestinal chemoprevention.  In 2019, he left the CTEU to pursue his medical degree at Dartmouth Medical School.

Jennifer Mackinnon Krems


Jennifer Mackinnon Krems joined the CTEU in June 2018 remaining through June 2019.  She graduated from Amherst College in 2018 with a BA in Economics. She worked as a clinical research coordinator on several clinical trials studying GI cancer prevention and detection and will be attending medical school in the fall of 2020.

Oliver Takacsi-Nagy


Oliver Takacsi-Nagy joined the CTEU in 2017. In 2019, he took a position as a Senior Research Associate at ArsenalBio.

Claude Luvier-Bonnet


Claude Luvier-Bonnet joined the CTEU in 2018. In 2019, he left the CTEU to pursue a Nursing degree at the Yale School of Nursing.

Dana Meixell


Dana Meixell joined the CETU in 2017. In 2018, she left the CTEU to pursue her medical degree at Quinnipiac University School of Medicine.

Melanie Parziale


Melanie Parziale joined the CTEU in 2016. In 2018, she left the CTEU to pursue her medical degree at University of Vermont Medical School.

Samantha Chin


Samantha Chin joined the CTEU in 2016. In 2017, she left the CTEU to join the Medical Science Training Program at Washington University School of Medicine in St. Louis.

Katherine (Kate) Gilpin


Katherine Gilpin was with the CTEU from 2014 until 2016 and is currently a Scientific Analyst for Aetion (Healthcare Tech).

Kathleen Stewart, MPH


Kathleen Stewart was with our research group from 2013 until 2015. She is currently an Associate Infection Preventionist at Dartmouth-Hitchcock Medical.

Research Technicians

Deepika Mehra, PhD


Dr. Deepika Mehra was with the CTEU from 2019 until 2020 as a research technician II. She completed her PhD in 2017 in Entomology and was as a Research Technician at the Department of Neurosurgery, Baylor College of Medicine. At CTEU, she works as a Research Technician II on several clinical trials focusing on gastrointestinal cancer prevention and is currently pursuing a postdoctoral fellowship in Dr. Stephen Russell’s laboratory at MGH.

 

Patrick Miller


Patrick was with the CTEU from 2018 until 2019 as a research technician II. He now works for Alnylam Pharmaceuticals, Inc.

Emily Pond


Emily was with the CTEU from 2016 until 2018 as a research technician II. She is now a student in Biostatistics & Epidemiology, Johns Hopkins Bloomberg School of Public Health

Undergraduate Research Interns

 

Jiancheng Mo


Jiancheng Mo was with the CTEU from May 2018 through June 2020. He completed a PharmD student at MCPHS University in Boston. He worked in the CTEU as a research intern studying the in vitro effect of aspirin on prostaglandin E2 and inhibitory mediators in patient-derived colon organoids. He is now pursuing a postdoctoral fellowship in the laboratory of Dr. David Williams at Children’s Hospital Boston.

 

Daniel Packard

Daniel joined the CTEU while an undergraduate at Yale University and assisted in clinical research projects.