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The study group of ectopic fat storage

Five man are standing in front of a big screen showing MR images. Photographer: Thor Balkhed

The study group of ectopic fat storage studies how fat storage in various organs, such as the liver, muscle, and heart, increases the risk of disease development. The hypothesis is that mapping fat deposits and muscle quality in the body will help identify individuals at the highest risk of developing organ-specific diseases, such as cardiovascular disease, chronic liver disease, kidney disease, or premature death.

We use clinical, experimental, and radiological methods on severely ill, chronically ill, and healthy subjects to map mechanisms and biomarkers.

Over the past four decades, the global prevalence of type 2 diabetes and obesity has increased significantly. Today, nearly two billion people are considered overweight, of which two out of five suffer from obesity. Overweight, and particularly abdominal obesity, is strongly associated with metabolic syndrome, which, in addition to type 2 diabetes, also includes high blood pressure and elevated blood lipids. However, overweight is also associated with an increased risk of cardiovascular disease, liver disease, and kidney disease.

The most common method for estimating overweight is by calculating Body Mass Index (BMI), which is a rough estimate of an individual’s weight and therefore prone to errors. Recently, it has been noted that where and how fat is stored is more important than an individual’s BMI. Using MRI scans, the amount of fat in the liver, abdomen, heart, and muscles can be estimated with high precision.

This group aims to use groundbreaking methods to identify, phenotype, and predict healthy as well as severely ill individuals existing and future risk of disease.

The study group of ectopic fat storage has gathered world-leading expertise across hepatology, cardiology, clinical physiology, general medicine, radiology, MRI physics, omics, genetics, experimental biomedicine, modelling, and health economics.

En person förs in i en MR-maskin. En sjuksköterska står på vardera sida om personen..

Projects

Timeline

Project name

From

Until

Planning initiated

Inclusion commenced

Inclusion finished

Follow-up

Study end-date

DETECT-HCC-ESLD 2024 2040 mar-22 nov-24 jun-27 jun-29 mar-40
EPSOMIP 2019 2023 mar-17 may-19 feb-24 n/a n/a
EPSOMIP 2 2023 2029 mar-23 feb-25 jun-27 mar-40 mar-40
ACCESS 2020 2024 oct-16 may-21 mar-24 n/a mar-39

More projects within ectopic fat storage

English version coming soon.

HEALTH

The study is a local sub‑study of SCAPIS 2, and we plan to include 400 patients with type 2 diabetes and 400 matched controls (matched for age, BMI, sex, and smoking status). In addition to the examinations included in the SCAPIS 2 protocol, all participants will be offered an MRI scan to assess body composition and muscle atrophy, as well as liver assessment (fat and fibrosis evaluation). Participants will also be offered a FibroScan examination, blood sampling, Hand Grip Strength testing, and completion of questionnaires related to muscle atrophy.

SCORE – Sarcopenia in Chronic Liver Disease

In a previous study (The Non‑Invasive Liver Biopsy – NILB – Study) and a soon‑to‑be‑completed study (The HiFi Study), all patients suspected of chronic liver disease who, based on clinical indication, underwent liver biopsy were also offered an MRI scan to assess liver fat, iron, and fibrosis. In total, approximately 200 patients with chronic liver disease have undergone liver biopsy, blood sampling, and an MRI scan of the liver. In addition, further biobanked blood samples and MRI data of other abdominal organs and tissues (pancreas, spleen, adipose tissue, and muscle tissue) are available but have not yet been analysed. Moreover, through the integrated electronic medical record system in Region Östergötland, we can collect clinical data for all patients, as an average of seven years (range 0–14 years) has now passed from the time of inclusion to the present day.

NFL – Non Fasting Liver

In a small hypothesis‑driven study, we are investigating the impact of food intake with different caloric content on the liver, with respect to fat content and elastography measurements, as well as muscle and body composition, through repeated MRI scans in a controlled environment. Of particular interest are individuals with type 2 diabetes and concomitant non‑alcoholic fatty liver disease (NAFLD). We plan to include ten male patients with type 2 diabetes and NAFLD, along with ten age‑matched, normal‑weight controls without NAFLD. All participants will consume three standardised meals and, in addition to a baseline MRI scan, undergo nine further MRI examinations over the course of 24 hours.

STEWART – South East Sweden NAFLD Cohort

This project includes all patients at the Department of Gastroenterology in Linköping with a clinical, radiological, or histological diagnosis of non‑alcoholic fatty liver disease (NAFLD). The register contains both cross‑sectional and longitudinal data to facilitate epidemiological studies and/or meta‑analyses. In total, this currently includes approximately 600 individuals with a NAFLD diagnosis.

UK Biobank

In collaboration with AMRA Medical AB, we have access to MRI data on more than 40,000 individuals assessed for muscle and body composition in the UK Biobank. Of these, approximately 13% have non‑alcoholic fatty liver disease. In addition, follow‑up data are available for approximately four years.

Researchers

Collaborations

Organisation