Evidence map›Paper›PMID 32504883›Full record

Trial reportMolecular metabolism2020

Fasting induces ANGPTL4 and reduces LPL activity in human adipose tissue.

Philip M M Ruppert, Charlotte C J R Michielsen, Eric J Hazebroek, Ali Pirayesh, Gunilla Olivecrona, Lydia A Afman, Sander Kersten

2 registry-linked trialsOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in Molecular metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
6.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03757767 nacompletednot on this map

The Fasting Study - Unraveling the Mechanistic Effects of Prolonged Fasting in Humans.

TypeinterventionalSponsorWageningen UniversityRan2018 to 2019Enrolled24ConditionsFasting, Adipose Tissue, Clinical Trial, Lipid MetabolismArmsFasting for 26-hours
NCT07527208 narecruitingnot on this mapstarted 2026, after this paper: background citation

The Meta-SHIFT Study: How Metabolic Shift Shapes Human Immunometabolism - a Fasting Trial

TypeinterventionalSponsorCornell UniversityRan2026 to 2026Enrolled28ConditionsFastingArmsFasting
3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 66 citations in OpenAlex.

  1. Trial
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  4. Review
  5. Article
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  12. Review
  13. Mechanisms of Lipid-Associated Macrophage Accrual in Metabolically Stressed Adipose Tissue.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  14. ANGPTL3/8 is an atypical unfoldase that regulates intravascular lipolysis by catalyzing unfolding of lipoprotein lipase.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Philip M M RuppertNutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands.
Charlotte C J R MichielsenNutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands.
Eric J HazebroekDepartment of Bariatric Surgery, Rijnstate Hospital/Vitalys Clinic, Arnhem, the Netherlands; Nutrition and Disease Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands.
Ali PirayeshAmsterdam Plastic Surgery, Amsterdam, the Netherlands.
Gunilla OlivecronaDepartment of Medical Biosciences/Physiological Chemistry, Umeå University, Umeå, Sweden.
Lydia A AfmanNutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands.
Sander KerstenNutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands. Electronic address: sander.kersten@wur.nl.
Wageningen University & Research · NLRijnstate Hospital · NLUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveStudies in mice have shown that the decrease in lipoprotein lipase (LPL) activity in adipose tissue upon fasting is mediated by induction of the inhibitor ANGPTL4. Here, we aimed to validate this concept in humans by determining the effect of a prolonged fast on ANGPTL4 and LPL gene and protein expression in human subcutaneous adipose tissue.

methodsTwenty-three volunteers ate a standardized meal at 18.00 h and fasted until 20.00 h the next day. Blood was drawn and periumbilical adipose tissue biopsies were collected 2 h and 26 h after the meal.

resultsConsistent with previous mouse data, LPL activity in human adipose tissue was significantly decreased by fasting (-60%), concurrent with increased ANGPTL4 mRNA (+90%) and decreased ANGPTL8 mRNA (-94%). ANGPTL4 protein levels in adipose tissue were also significantly increased by fasting (+46%), whereas LPL mRNA and protein levels remained unchanged. In agreement with the adipose tissue data, plasma ANGPTL4 levels increased upon fasting (+100%), whereas plasma ANGPTL8 decreased (-79%). Insulin, levels of which significantly decreased upon fasting, downregulated ANGPTL4 mRNA and protein in primary human adipocytes. By contrast, cortisol, levels of which significantly increased upon fasting, upregulated ANGPTL4 mRNA and protein in primary human adipocytes as did fatty acids.

conclusionANGPTL4 levels in human adipose tissue are increased by fasting, likely via increased plasma cortisol and free fatty acids and decreased plasma insulin, resulting in decreased LPL activity. This clinical trial was registered with identifier NCT03757767.

Indexed as

AdipocytesAdipose TissueAdultAgedAngiopoietin-Like Protein 4Angiopoietin-Like Protein 8Angiopoietin-like ProteinsFastingFatty AcidsFatty Acids, NonesterifiedFemaleHumansInsulinInsulin ResistanceLipoprotein LipaseMaleAngiopoietin-Like Protein 4Angiopoietin-Like Protein 8Angiopoietin-like ProteinsANGPTL4 protein, humanANGPTL8 protein, humanFatty AcidsFatty Acids, NonesterifiedInsulinLipoprotein LipasePeptide HormonesTriglyceridesAdipose tissueFatty acidsInsulinLipoprotein lipaseTriglycerides

Identifiers

PMID32504883
PMCPMC7334813
OpenAlexW3033700020

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.