Evidence map›Paper›PMID 26115673›Full record

ArticleFood & nutrition research2015

Leucine supplementation improves leptin sensitivity in high-fat diet fed rats.

Xue-Wei Yuan, Shu-Fen Han, Jian-Wei Zhang, Jia-Ying Xu, Li-Qiang Qin

Open access · goldAbstract read
In one paragraph

Article in Food & nutrition research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.7field-weighted citation impact, top 35% 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

14 citing papers in PubMed, 24 citations in OpenAlex.

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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

5 authors at 1 institution in 2 countries.

Xue-Wei YuanDepartment of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China.
Shu-Fen HanDepartment of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China.
Jian-Wei ZhangDepartment of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China.
Jia-Ying XuKey Laboratory of Radiation Biology, School of Radiation Medicine and Protection, Soochow University, Suzhou, China.
Li-Qiang QinDepartment of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China.
Soochow University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral studies have reported the favorable effect of leucine supplementation on insulin resistance or insulin sensitivity. However, whether or not leucine supplementation improves leptin sensitivity remains unclear.

designForty-eight male Sprague-Dawley rats were fed with either a high-fat diet (HFD) or HFD supplemented with 1.5, 3.0, and 4.5% leucine for 16 weeks. At the end of the experiment, serum leptin level was measured by ELISA, and leptin receptor (ObR) in the hypothalamus was examined by immunohistochemistry. The protein expressions of ObR and leptin-signaling pathway in adipose tissues were detected by western blot.

resultsNo significant differences in body weight and food/energy intake existed among the four groups. Serum leptin levels were significantly lower, and ObR expression in the hypothalamus and adipose tissues was significantly higher in the three leucine groups than in the control group. These phenomena suggested that leptin sensitivity was improved in the leucine groups. Furthermore, the expressions of JAK2 and STAT3 (activated by ObR) were significantly higher, and that of SOCS3 (inhibits leptin signaling) was significantly lower in the three leucine groups than in the control group.

conclusionsLeucine supplementation improves leptin sensitivity in rats on HFD likely by promoting leptin signaling.

Indexed as

high-fat dietleptin sensitivityleptin signalingleucine

Identifiers

PMID26115673
PMCPMC4482813
OpenAlexW1610727705

What Socratic holds

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LicenceCC BY
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.