Evidence map›Paper›PMID 20056822›Full record

ArticleEndocrinology2010

Mice lacking hepatic lipase are lean and protected against diet-induced obesity and hepatic steatosis.

Harvey K Chiu, Kun Qian, Kayoko Ogimoto, Gregory J Morton, Brent E Wisse, Nalini Agrawal, Thomas O McDonald, Michael W Schwartz, Helén L Dichek

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Diabetology & metabolic syndrome · 2018
    Article
  9. Article
  10. Article
  11. Article
  12. Metabolic regulation by secreted phospholipase AInflammation and regeneration · 2016
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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

9 authors at 1 institution in 1 country.

Harvey K ChiuDepartment of Pediatrics, University of Washington, 1959 NE Pacific Street, Seattle, Washington 98195, USA.
Kun Qian
Kayoko Ogimoto
Gregory J Morton
Brent E Wisse
Nalini Agrawal
Thomas O McDonald
Michael W Schwartz
Helén L Dichek
University of Washington · US

Funding

Vector and Transgenic Mouse CoreP30DK017047 · NIDDK · UNIVERSITY OF WASHINGTON · PI Sakeneh Zraika · 1986 to 2026
$41.4M
PILOT STUDY--CLINICAL NUTRITION RESEARCHP30DK035816 · NIDDK · UNIVERSITY OF WASHINGTON · PI Ellen A Schur · 1986 to 2026
$30.4M
NEUROENDOCRINE REGULATION OF ENERGY BALANCER01DK052989 · NIDDK · UNIVERSITY OF WASHINGTON · PI SCHWARTZ, MICHAEL W · 1997 to 2011
$3.3M
HYPOTHALAMIC PEPTIDES, FOOD INTAKE, AND DIABETESR01NS032273 · NINDS · UNIVERSITY OF WASHINGTON · PI SCHWARTZ, MICHAEL W · 1999 to 2006
$2.3M
INSULIN, HYPOTHALAMIC PEPTIDES AND DIABETIC HYPERPHAGIAR29NS032273 · NINDS · UNIVERSITY OF WASHINGTON · PI SCHWARTZ, MICHAEL W · 1994 to 1998
–
NIDDK NIH HHS DK52989NIDDK NIH HHS DK68340NIDDK NIH HHS P30 DK017047NIDDK NIH HHS P30 DK035816NIDDK NIH HHS P30 DK-17047NIDDK NIH HHS R01 DK052989NINDS NIH HHS NS32273NINDS NIH HHS R01 NS032273
6 · The paper itself

Abstract

Hepatic lipase (HL)-mediated lipoprotein hydrolysis provides free fatty acids for energy, storage, and nutrient signaling and may play a role in energy homeostasis. Because HL-activity increases with increased visceral fat, we hypothesized that increased HL-activity favors weight gain and obesity and consequently, that HL deficiency would reduce body fat stores and protect against diet-induced obesity. To test this hypothesis, we compared wild-type mice (with endogenous HL) and mice genetically deficient in HL with respect to daily body weight and food intake, body composition, and adipocyte size on both chow and high-fat (HF) diets. Key determinants of energy expenditure, including rate of oxygen consumption, heat production, and locomotor activity, were measured by indirect calorimetry. HL-deficient mice exhibited reduced weight gain on both diets (by 32%, chow; by 50%, HF; both P < 0.0001, n = 6-7 per genotype), effects that were associated with reduced average daily food intake (by 22-30% on both diets, P < 0.0001) and a modest increase in the rate of oxygen consumption (by 25%, P < 0.003) during the light cycle. Moreover, in mice fed the HF diet, HL deficiency reduced both body fat (by 30%, P < 0.0001) and adipocyte size (by 53%, P < 0.01) and fully prevented the development of hepatic steatosis. Also, HL deficiency reduced adipose tissue macrophage content, consistent with reduced inflammation and a lean phenotype. Our results demonstrate that in mice, HL deficiency protects against diet-induced obesity and its hepatic sequelae. Inhibition of HL-activity may therefore have value in the prevention and/or treatment of obesity.

Indexed as

EatingEnergy MetabolismAdipose TissueAdiposityAnimalsBlood GlucoseBody WeightCircadian RhythmDietary FatsFatty LiverFemaleGlucose Tolerance TestLipaseLipid MetabolismLiverLocomotionBlood GlucoseDietary FatsLipaseLipc protein, mouseTriglycerides

Identifiers

PMID20056822
PMCPMC2840680
OpenAlexW2141010397

What Socratic 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 Socratic graph.