Photo of Patrik Nasr

Patrik Nasr

Adjunct Associate Professor, Docent

M.D., Ph.D., Postdoc. My main interests in research are epidemiology and non-invasive diagnosis of chronic liver diseases, and especially non-alcoholic fatty liver disease (NAFLD).

Non-invasive diagnosis of fatty liver disease and sarcopenia

I received my medical degree from Linköping University in 2013 and I'm doing a residency in internal medicine and in gastroenterology and hepatology at Linköping University Hospital. I defended my thesis "Non-Alcoholic Fatty Liver Disease: Aspects on Diagnosis and Long-term Prognosis" in 2019 and I'm currently involved in several prospective studies focusing on chronic liver diseases (mainly NAFLD) and cirrhosis as part of The Study Group of Ectopic Fat Storage. Furthermore, I’m doing a postdoc at the Karolinska Institute, as part of the Hagström group.

Chronic liver diseases are highly prevalent globally. Non-alcoholic fatty liver disease, or NAFLD, is the most common chronic liver disease, affecting approximately 25% of the adult population worldwide. NAFLD is often seen as the hepatic manifestation of the metabolic syndrome, which includes overweight/obesity, type 2 diabetes mellitus, dyslipidemia, and hypertension. The prevalence of NAFLD is expected to rise in parallel with the ongoing epidemic of obesity and type 2 diabetes mellitus.

NAFLD entails an increased risk of liver-related events associated with cirrhosis, such as ascites, esophageal varices, hepatic encephalopathy, and hepatocellular carcinoma (HCC). Even though NAFLD progresses slowly (over decades), and only circa 5% develop cirrhosis, it is now the leading cause of HCC and the second leading etiology for liver transplantation.

The gold standard for diagnosing and staging chronic liver diseases is by histopathological evaluation, which requires a liver biopsy. However, recently, novel biomarkers such as magnetic resonance (MR) imaging, has shown promise in replacing liver biopsy for quantification and evaluation of hepatic fat accumulation and fibrosis, portal blood flow, body composition and sarcopenia.

Currently, the most validated non-invasive biomarkers are easily available blood-based scores, advanced MR exams and vibration controlled transient elastography (e.g., Fibroscan®). However, several new biomarkers are under investigation, with experimental blood- and gene-based analyses, radiological techniques, and cytokines being thoroughly evaluated. Moreover, body composition, sarcopenia, and structural heart changes have shown an intricate relationship associated with cardiovascular and liver-related outcome in individuals with chronic liver diseases.

The relationship between body composition, sarcopenia and chronic liver diseases is poorly understood. However, sarcopenia seems to be associated with a more dismal prognosis in patients with chronic liver diseases, and especially liver cirrhosis.

The main purpose of our projects is to untangle the relationship between chronic liver disease, body composition and sarcopenia, and its relevance for diagnosis, prognosis, and treatment. Furthermore, we aim to define clinically relevant risk phenotypes amongst individuals with chronic liver diseases, and especially non-alcoholic fatty liver disease.

About me

CV

  • 2007-2013 Medical Degree, Linköping University, Sweden
  • 2013-2015 Internship, Linköping University Hospital (US), Sweden
  • 2015- Resident, Internal medicine, US, Sweden
  • 2015- Resident, Gastroenterology and Hepatology, US, Sweden
  • 2020- Postdoc, Karolinska Institutet, Stockholm, Sweden
  • 2020- Member of the Linköping Medical Association

Teaching assignments

  • 2013- Teaching assignments at the Medical Programme Linköping
  • 2021- Co-supervisor for PhD-students
  • 2015- Examiner at the Medical Programme in Linköping

Networks

Publications

image from publication
Patrik Nasr, Mikael F. Forsgren, Simone Ignatova, Nils Dahlström, Gunnar Cedersund, Olof Dahlqvist Leinhard, Bengt Norén, Mattias Ekstedt, Peter Lundberg, Stergios Kechagias (2017)

Gastroenterology , Vol.153 , s.53-+ Continue to DOI

Patrik Nasr, Simone Ignatova, Stergios Kechagias, Mattias Ekstedt (2018)

Hepatology communications , Vol.2 , s.199-210 Continue to DOI

Hannes Hagström, Patrik Nasr, Mattias Ekstedt, Ulf Hammar, Per Stal, Rolf Hultcrantz, Stergios Kechagias (2017)

Journal of Hepatology , Vol.67 , s.1265-1273 Continue to DOI

2025

Marie Byenfeldt, Christer Gronlund, Patrik Nasr, Anna Lindam, Mattias Ekstedt, Peter Lundberg, Johan Kihlberg (2025) A comparative study between ultrasound-guided-attenuation-parameter (UGAP), controlled attenuation parameter (CAP), and proton density fat fraction (PDFF) for assessment of hepatic steatosis Scandinavian Journal of Gastroenterology (Article in journal) Continue to DOI
Grazia Pennisi, Gabriele Di Maria, Vincent Wai-Sun Wong, Victor de Ledinghen, Giada Sebastiani, Mauro Vigano, Anna Ludovica Fracanzani, Luca Miele, Elisabetta Bugianesi, Mattias Ekstedt, Roberta D'Ambrosio, Federico Ravaioli, Filippo Schepis, Fabio Marra, Alessio Aghemo, Gianluca Svegliati-Baroni, Marcello Persico, Luca Valenti, Annalisa Berzigotti, Jacob George, Angelo Armandi, Patrik Nasr, Stergios Kechagias, Antonio Liguori, Dario Saltini, Yuly P. Mendoza, Vincenza Calvaruso, Marco Enea, Huapeng Lin, Giuseppe Infantino, Mario Masarone, Nicola Pugliese, Adele Tulone, Vito Di Marco, Calogero Camma, Salvatore Petta (2025) Impact of first and further decompensation in patients with compensated ACLD due to MASLD Journal of Hepatology, Vol. 83 (Article in journal) Continue to DOI
Martin Bergram, Stergios Kechagias, Fredrik Iredahl, Wile Balkhed, Markus Holmberg, Nils Dahlström, Peter Lundberg, Patrik Nasr, Mattias Ekstedt, Karin Rådholm (2025) Microvascular complications of type 2 diabetes with or without MASLD: the EPSOMIP study, a primary care cohort study BMC Primary Care, Vol. 26, Article 354 (Article in journal) Continue to DOI
Juan Vaz, Patrik Nasr, Anders Helander, Ying Shang, Axel Wester, Rickard Strandberg, Emilie Toresson Grip, Hannes Hagstrom (2025) Phosphatidylethanol levels distinguish steatotic liver disease subgroups and are associated with risk of major liver outcomes Journal of Hepatology, Vol. 83 (Article in journal) Continue to DOI
Wile Balkhed, Martin Bergram, Fredrik Iredahl, Markus Holmberg, Carl Edin, Carljohan Carlhäll, Tino Ebbers, Pontus Henriksson, Christian Simonsson, Karin Rådholm, Gunnar Cedersund, Mikael Forsgren, Olof Dahlqvist Leinhard, Cecilia Jönsson, Peter Lundberg, Stergios Kechagias, Nils Dahlström, Patrik Nasr, Mattias Ekstedt (2025) Evaluating the prevalence and severity of metabolic dysfunction-associated steatotic liver disease in patients with type 2 diabetes mellitus in primary care Journal of Internal Medicine, Vol. 298, p. 173-187 (Article in journal) Continue to DOI

Research

Research projects:

  • ACCESS-ESLD
  • SCORE
  • STEWART
  • NFL
  • FLIS-2
  • LITMUS
  • UK Biobank
Bild på utsnitt av fettlever

Metabolic dysfunction-associated steatotic liver disease (MASLD)

Metabolic dysfunction-associated steatotic liver disease (MASLD) previously known as non-alcoholic fatty liver disease (NAFLD) is a chronic liver disease which has become the most common liver disease affecting adults and children.

Photo of EPSONIP project meeting

EPSOMiP

The research project EPSOMIP brings together a multidisciplinary team of researchers with a shared interest in exploring the link between fatty liver, epicardial fat, and cardiovascular disease in type 2 diabetes.

Research Networks

Coworkers

  • Mattias Ekstedt
  • Wile Balkhed
  • Julia Blomdahl
  • Byron Lykiardopoulo
  • Stergios Kechagias
  • Mikael Forsgren
  • Olof Dahlqvist Leinhardt
  • Jennifer Linge
  • Gunnar Cedersund
  • Valentin Kindesjö
  • Nils Dahlström
  • Bengt Norén
  • Wolf Bartholomä
  • Peter Lundberg
  • Johan Kihlberg
  • Carl Johan Carlhäll
  • Tino Ebbers
  • Carl Edin
  • Joakim Alfredsson
  • Torsten Olbers
  • Bijar Ghafour
  • Cecilia Jönsson
  • Christian Simonsson
  • Martin Henriksson
  • Lina Gruneau
  • Fredrik Iredahl
  • Martin Ulander
  • Martin Bergram
  • Karin Rådholm
  • Simone Ignatova

Organisation

News