# Identifying clinical and genetic correlates of hepatic fibrosis from fatty liver disease in the community

> **NIH NIH K23** · BOSTON MEDICAL CENTER · 2020 · $190,885

## Abstract

Project Summary
Michelle T. Long, MD, is a faculty member of the Boston Medical Center, Division of Gastroenterology and an
Assistant Professor at the Boston University (BU) School of Medicine. Her research has focused on non-alcoholic
fatty liver disease (NAFLD) as measured by computed tomography scan in the Framingham Heart Study (FHS).
In her prior work, she has evaluated the association between NAFLD and physical activity and NAFLD and sub-
clinical measures of cardiovascular disease (CVD) in the FHS cohort. Her work in these areas has resulted in 4
first author publications including the development and validation of a simple clinical diagnostic score for hepatic
steatosis called the Framingham Steatosis Index. Her recent study utilizing blood-based non-invasive hepatic
fibrosis markers in the FHS determined that the available fibrosis markers give widely disparate predictions of
the risk for significant hepatic fibrosis when applied to this community-based cohort. NAFLD associated hepatic
fibrosis is an important public health problem. More than 15 million Americans are estimated to suffer from
hepatic fibrosis from NAFLD which worsens metabolic disease and increases the risk of liver- related and CVD-
related death. Studies to date examining NAFLD in community-based cohorts in the United States have relied
on imaging modalities that are insensitive to hepatic fibrosis. Dr. Long's proposal will focus on testing three
hypotheses; 1) FHS participants with hepatic fibrosis, as measured by vibration-controlled transient elastography
(VCTE), have a more adverse CVD risk factor profile compared to those with no fibrosis, 2) Genetic determinants
for the risk of hepatic fibrosis are identifiable by genome wide association studies and 3) A diagnostic model
based on clinical and genetic traits distinguishes NAFLD patients with and without fibrosis as defined by VCTE
and the model performs well when applied to an external validation cohort. The study of the clinical and genetic
traits associated with hepatic fibrosis in the community will lead to insights into disease mechanisms, biomarker
development, and novel therapeutic targets, which has the potential to improve public health. This study will be
performed as an ancillary study of approximately 3,500 FHS Third Generation and OMNI 2 cohort participants
who are undergoing evaluation for hepatic fibrosis using VCTE. Dr. Long’s ultimate career goal is to use
epidemiological insights for two purposes: a) identify potential novel drug targets; and b) develop tools to identify
high risk NAFLD patients to prevent disease progression. To complete this proposal and progress towards these
goals, Dr. Long has developed a five year mentored career development program that incorporates both didactic
and formal research training guided by two well established investigators with expertise in clinical and
translational research in CVD and NAFLD. She will receive formal didactic training in epidemiology, advanced
b...

## Key facts

- **NIH application ID:** 9832192
- **Project number:** 5K23DK113252-03
- **Recipient organization:** BOSTON MEDICAL CENTER
- **Principal Investigator:** Michelle T Long
- **Activity code:** K23 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $190,885
- **Award type:** 5
- **Project period:** 2018-01-12 → 2022-11-30

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/9832192

## Citation

> US National Institutes of Health, RePORTER application 9832192, Identifying clinical and genetic correlates of hepatic fibrosis from fatty liver disease in the community (5K23DK113252-03). Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/grant/nih/9832192. Licensed CC0.

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