Researcher profile · Semantic Scholar

R. Torstenson

h-index: 18
Works: 32
Citations: 1,117

Most-cited papers

Biomarkers for staging fibrosis and non-alcoholic steatohepatitis in non-alcoholic fatty liver disease (the LITMUS project): a comparative diagnostic accuracy study.
Yasaman Vali, Jenny A. Lee, J. Boursier, S. Petta +33 more
2023The Lancet Gastroenterology and Hepatology158 citations Open access
Semantic Scholar
The European NAFLD registry: A real-world longitudinal cohort study of nonalcoholic fatty liver disease.
T. Hardy, Kristy Wonders, R. Younes, G. Aithal +29 more
2020Contemporary Clinical Trials126 citations Open access
Semantic Scholar
Differential effects of levodopa on dopaminergic function in early and advanced Parkinson's disease
R. Torstenson, P. Hartvig, B. Långström, G. Westerberg +1 more
1997Annals of Neurology89 citations
Semantic Scholar
Effects of long‐term treatment with oxytocin in chronic constipation; a double blind, placebo‐controlled pilot trial
B. Ohlsson, Mikael Truedsson, M. Bengtsson, R. Torstenson +3 more
2005Neurogastroenterology and Motility82 citations Open access
Semantic Scholar
Defining Improvement in Nonalcoholic Steatohepatitis for Treatment Trial Endpoints: Recommendations From the Liver Forum
Amanda C. Cheung, B. Neuschwander-Tetri, D. Kleiner, Elmer Schabel +8 more
2019Hepatology76 citations Open access
Semantic Scholar
Dopamine autoreceptor function is lost in advanced Parkinson’s disease
A. Ekesbo, E. Rydin, R. Torstenson, O. Sydow +2 more
1999Neurology69 citations
Semantic Scholar
Comparison of ADAPT, FIB4 and APRI as non-invasive predictors of liver fibrosis and NASH within the CENTAUR Screening Population.
M. Nielsen, D. Leeming, Z. Goodman, S. Friedman +10 more
2021Journal of Hepatology63 citations Open access
Semantic Scholar
Tetrahydrobiopterin in the Treatment of Children With Autistic Disorder: A Double-blind Placebo-Controlled Crossover Study
T. Danfors, Anna Irma von Knorring, P. Hartvig, B. Långstrom +6 more
2005Journal of Clinical Psychopharmacology46 citations
Semantic Scholar
Effects of the substituted (S)‐3‐phenylpiperidine (−)‐OSU6162 on PET measurements in subhuman primates: Evidence for tone‐dependent normalization of striatal dopaminergic activity
J. Tedroff, R. Torstenson, P. Hartvig, C. Sonesson +5 more
1998Synapse45 citations
Semantic Scholar
Kinetic Compartment Modeling of [11C]-5-Hydroxy-L-Tryptophan for Positron Emission Tomography Assessment of Serotonin Synthesis in Human Brain
G. Hagberg, R. Torstenson, Í. Marteinsdóttir, M. Fredrikson +2 more
2002Journal of Cerebral Blood Flow and Metabolism43 citations Open access
Semantic Scholar
Oral Pilocarpine for Treatment of Opioid-induced Oral Dryness in Healthy Adults
B. Götrick, Sigvard Åkerman, Dan Ericson, R. Torstenson +1 more
2004Journal of dentistry research42 citations
Semantic Scholar
Effect of apomorphine infusion on dopamine synthesis rate relates to dopaminergic tone.
R. Torstenson, P. Hartvig, B. Långström, S. Bastami +2 more
1998Neuropharmacology39 citations
Semantic Scholar
NAFLD and NASH Biomarker Qualification in the LITMUS consortium - Lessons learned.
D. Rasmussen, Q. Anstee, R. Torstenson, Bruno Golding +16 more
2022Journal of Hepatology34 citations Open access
Semantic Scholar
Machine learning algorithm improves the detection of NASH (NAS-based) and at-risk NASH: A development and validation study
Jenny A. Lee, Max Westphal, Yasman Vali, J. Boursier +37 more
2023Hepatology32 citations Open access
Semantic Scholar
A Comparison of 11C-Labeled l-DOPA and l-Fluorodopa as Positron Emission Tomography Tracers for the Presynaptic Dopaminergic System
R. Torstenson, J. Tedroff, P. Hartvig, K. Fasth +1 more
1999Journal of Cerebral Blood Flow and Metabolism32 citations
Semantic Scholar
L‐DOPA modulates striatal dopaminergic function in vivo: Evidence from PET investigations in nonhuman primates
J. Tedroff, R. Torstenson, P. Hartvig, K. Lindner +4 more
1997Synapse30 citations
Semantic Scholar
Effects of the substituted (S)-3-phenylpiperidine (-)-OSU6162 on PET measurements of [11C]SCH23390 and [11C]raclopride binding in primate brains.
A. Ekesbo, R. Torstenson, P. Hartvig, A. Carlsson +4 more
1999Neuropharmacology29 citations
Semantic Scholar
Validation studies on the 5‐hydroxy‐L‐[β‐11C]‐tryptophan/PET method for probing the decarboxylase step in serotonin synthesis
Pinelopi Lundquist, G. Blomquist, P. Hartvig, G. Hagberg +3 more
2006Synapse26 citations
Semantic Scholar
Synthesis of [11C-methyl]-(-)-OSU6162, its regional brain distribution and some pharmacological effects of (-)-OSU6162 on the dopaminergic system studied in the rhesus monkey by positron emission tomography.
H. Neu, P. Hartvig, R. Torstenson, K. Fasth +5 more
1997Nuclear Medicine and Biology18 citations
Semantic Scholar
Redefinition of Fatty Liver Disease from NAFLD to MAFLD through the Lens of Drug Development and Regulatory Science
Yasser M. Fouad, M. Palmer, Min-Jun Chen, A. Regev +18 more
2021Journal of Clinical and Translational Hepatology11 citations Open access
Semantic Scholar
Factors to Consider in Development of Drugs for Pediatric Nonalcoholic Fatty Liver Disease
Miriam B. Vos, Lara Dimick‐Santos, R. Mehta, Stephanie O. Omokaro +11 more
2019Gastroenterology11 citations Open access
Semantic Scholar
Regional brain distribution and binding of the muscarinic receptor agonist CI-979 studied by positron emission tomography in the monkey.
P. Hartvig, R. Torstenson, P. Bjurling, K. Fasth +2 more
1997Dementia and Geriatric Cognitive Disorders9 citations
Semantic Scholar
Interaction of a Muscarinic Cholinergic Agonist on Acetylcholine and Dopamine Receptors in the Monkey Brain Studied with Positron Emission Tomography
P. Hartvig, A. Nordberg, R. Torstenson, Pernilla Sjöberg +2 more
2002Dementia and Geriatric Cognitive Disorders3 citations
Semantic Scholar
GS-001 Diagnostic performance of imaging and serum based MASLD biomarkers: robust validation in the prospective LITMUS imaging study
M. Pavlides, Yasaman Vali, F. Mózes, Kristy Wonders +50 more
2025Journal of Hepatology2 citations
Semantic Scholar
Contents Vol. 13, 2002
P. Hartvig, A. Nordberg, R. Torstenson, Pernilla Sjöberg +26 more
2002Dementia and Geriatric Cognitive Disorders2 citations
Semantic Scholar
Non-invasive test cut-offs for the identification of advanced liver fibrosis in a diabetes cohort with non-alcoholic steatohepatitis: data from the phase 3 AURORA study
Q. Anstee, P. Mantry, Castera Laurent, Darshi Shah +9 more
2020Journal of Hepatology1 citations Open access
Semantic Scholar
Subject Index Vol. 13, 2002
P. Hartvig, A. Nordberg, R. Torstenson, Pernilla Sjöberg +26 more
2002Dementia and Geriatric Cognitive Disorders1 citations
Semantic Scholar
TOP-394 Comprehensive analysis of biomarker performance targeting “advanced fibrosis” and “at-risk” metabolic-dysfunction associated steatotic liver disease (MASH) – primary analysis of the LITMUS study cohort
Yasaman Vali, Kristy Wonders, G. Aithal, Rocío Aller +54 more
2025Journal of Hepatology0 citations
Semantic Scholar
OS-013 Optimizing non-invasive screening to reduce biopsy screen failure in clinical trials for metabolic dysfunction-associated steatotic liver disease
Yasaman Vali, Kristy Wonders, G. Aithal, Rocío Aller +53 more
2025Journal of Hepatology0 citations
Semantic Scholar
Effects of long-term treatment with oxytocin in chronic constipation ; a double-blind , placebo-controlled pilot trial R 1
B. Ohlsson, Mikael Truedsson, M. Bengtsson, R. Torstenson +3 more
20050 citations
Semantic Scholar
Tracer kinetic modelling of [11C]-5-hydroxy-L-tryptophan. Relation to plasma levels of large neutral aminoacids.
G. Hagberg, R. Torstenson, Í. Marteinsdóttir, M. Fredrikson +2 more
20020 citations
Semantic Scholar
Dopaminergic function in autism : Preliminary report of a therapy study with 6-r Tetrahydrobiopterin (THBP)
T. Danfors, O. Eeg‐Olofsson, P. Hartvig, Anna Irma von Knorring +7 more
19990 citations
Semantic Scholar

K. Fasth

×7

Kristy Wonders×6

D. Tiniakos×6

H. Yki-Järvinen×6

M. Ekstedt×6

G. Aithal×6

E. Bugianesi×6

V. Ratziu×6