Evidence map›Paper›PMID 32573497›Full record

ArticleJCI insight2020

Leptin decreases de novo lipogenesis in patients with lipodystrophy.

Annah P Baykal, Elizabeth J Parks, Robert Shamburek, Majid M Syed-Abdul, Shaji Chacko, Elaine Cochran, Megan Startzell, Ahmed M Gharib, Ronald Ouwerkerk, Khaled Z Abd-Elmoniem and 5 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
5.2field-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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 41 citations in OpenAlex.

  1. Trial
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  4. Research Progress on Leptin in Metabolic Dysfunction-associated Fatty Liver Disease.Journal of clinical and translational hepatology · 2025
    Review
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  14. Treatment Options for Lipodystrophy in Children.Frontiers in endocrinology · 2022
    Review
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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

15 authors at 4 institutions in 1 country.

Annah P BaykalNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Elizabeth J ParksDepartment of Nutrition and Exercise Physiology, School of Medicine, University of Missouri, Columbia, Missouri, USA.
Robert ShamburekNational Heart, Lung, and Blood Institute, NIH, Bethesda, Maryland, USA.
Majid M Syed-AbdulDepartment of Nutrition and Exercise Physiology, School of Medicine, University of Missouri, Columbia, Missouri, USA.
Shaji ChackoDepartment of Pediatrics, Children's Nutrition Research Center, US Department of Agriculture/Agricultural Research Service, Baylor College of Medicine, Houston, Texas, USA.
Elaine CochranNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Megan StartzellNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Ahmed M GharibNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Ronald OuwerkerkNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Khaled Z Abd-ElmoniemNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Peter J WalterNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Mary WalterNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Ranganath MuniyappaNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Stephanie T ChungNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
Rebecca J BrownNational Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.
National Institute of Diabetes and Digestive and Kidney Diseases · USUniversity of Missouri · USChildren's Nutrition Research Center at Baylor College of Medicine · USNational Heart Lung and Blood Institute · US

Funding

Cardiovascular Clinical Section StudiesZICHL006199 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI SACK, MICHAEL · 2017 to 2025
$8.8M
Effects of leptin in lipodystrophy independent of food intakeZIADK075084 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI BROWN, REBECCA · 2013 to 2023
$2.5M
6 · The paper itself

Abstract

De novo lipogenesis (DNL) plays a role in the development of hepatic steatosis. In humans with lipodystrophy, reduced adipose tissue causes lower plasma leptin, insulin resistance, dyslipidemia, and ectopic triglyceride (TG) accumulation. We hypothesized that recombinant leptin (metreleptin) for 6 months in 11 patients with lipodystrophy would reduce DNL by decreasing insulin resistance and glycemia, thus reducing circulating TG and hepatic TG. The percentage of TG in TG-rich lipoprotein particle (TRLP-TG) derived from DNL (%DNL) was measured by deuterium incorporation from body water into palmitate. At baseline, DNL was elevated, similar to levels previously shown in obesity-associated nonalcoholic fatty liver disease (NAFLD). After metreleptin, DNL decreased into the normal range. Similarly, absolute DNL (TRLP-TG × %DNL) decreased by 88% to near-normal levels. Metreleptin improved peripheral insulin sensitivity (hyperinsulinemic-euglycemic clamp) and lowered hemoglobin A1c and hepatic TG. Both before and after metreleptin, DNL positively correlated with insulin resistance, insulin doses, and hepatic TG, supporting the hypothesis that hyperinsulinemia stimulates DNL and that elevated DNL is integral to the pathogenesis of lipodystrophy-associated NAFLD. These data suggest that leptin-mediated improvement in insulin sensitivity increases clearance of blood glucose by peripheral tissues, reduces hepatic carbohydrate flux, and lowers insulinemia, resulting in DNL reductions and improvements in hepatic steatosis and dyslipidemia.

Indexed as

AdultBlood GlucoseDiabetes MellitusFatty LiverFemaleGlycated HemoglobinHumansInsulinInsulin ResistanceLeptinLipodystrophyLipogenesisLiverMaleMiddle AgedTriglyceridesBlood GlucoseGlycated HemoglobinInsulinLeptinmetreleptinTriglyceridesDiabetesInsulinLeptinMetabolismTherapeutics

Identifiers

PMID32573497
PMCPMC7453896
OpenAlexW3036859000

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.