Evidence map›Paper›PMID 23022555›Full record

ArticleAppetite2013

Rapid onset and reversal of peripheral and central leptin resistance in rats offered chow, sucrose solution, and lard.

John W Apolzan, Ruth B S Harris

Abstract read
In one paragraph

Article in Appetite, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Leptin in the VMH contributes to the initial overconsumption of palatable diets by rats.American journal of physiology. Endocrinology and metabolism · 2025
    Article
  3. Review
  4. Consuming sucrose solution promotes leptin resistance and site specifically modifies hypothalamic leptin signaling in rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2021
    Article
  5. 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

2 authors.

John W ApolzanDepartment of Physiology, Georgia Health Sciences University, 1120 15th Street, Augusta, GA 30912, USA; Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA(1). Electronic address: johnwapolzan@gmail.com.
Ruth B S HarrisDepartment of Physiology, Georgia Health Sciences University, 1120 15th Street, Augusta, GA 30912, USA.

Funding

LEPTIN AND PERIPHERAL GLUCOSE METABOLISMR01DK053903 · NIDDK · UNIVERSITY OF GEORGIA (UGA) · PI HARRIS, RUTH B · 1999 to 2018
$4.6M
NIDDK NIH HHS R01 DK053903NIDDK NIH HHS R01 DK53903
6 · The paper itself

Abstract

We previously reported that rats offered choice diet (chow, 30% sucrose solution, lard) increase body fat by 130% within 3 weeks. We tested the effects of choice diet on the development of leptin resistance in rats. Intraperitoneal injection of 2mg/kg leptin inhibited 14 h food intake and weight gain of all rats after 2 days and 4 days of diet. On day 8, choice rats were leptin insensitive and by day 16 they were resistant. Chow rats remained leptin responsive. A second study showed that on day 16 choice, but not chow rats, were centrally leptin resistant (1.5 μg leptin, 3rd ventricle). In both studies, rats were switched back to chow only after approximately 3 weeks on choice diet and were leptin responsive after 4 days. A third study showed that carcass fat was reduced by 30% 4 days after switching back to chow. A final experiment showed that leptin responsive chow rats, but not leptin resistant choice rats, increased energy expenditure by 12% during the 2.6h after a central leptin injection. Thus, choice diet rapidly induces leptin resistance, but leptin responsiveness is quickly restored when choice is replaced with chow. This rapid onset and reversal of leptin resistance may be associated with changes in either substrate metabolism or adiposity.

Indexed as

DietDrug ToleranceAdipose TissueAdiposityAnimal FeedAnimalsBody WeightChoice BehaviorDietary FatsDietary SucroseEnergy IntakeEnergy MetabolismLeptinMaleObesityRatsDietary FatsDietary SucroselardLeptin

Identifiers

PMID23022555
PMCPMC3996830

What OpenQuestion holds

Textmetadata
LicenceTDM
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.