Evidence map›Paper›PMID 22778225›Full record

ArticleEndocrinology2012

β-Endorphin antagonizes the effects of α-MSH on food intake and body weight.

Roxanne Dutia, Kana Meece, Shveta Dighe, Andrea J Kim, Sharon L Wardlaw

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

32 citing papers in PubMed, 61 citations in OpenAlex.

  1. Mitragynine and morphine produce dose-dependent bimodal action on food but not water intake in rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2024
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  9. Anxiety and Depression: What Do We Know of Neuropeptides?Behavioral sciences (Basel, Switzerland) · 2022
    Review
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  12. Article
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  15. Review
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  18. Article
  19. The central melanocortin system and human obesity.Journal of molecular cell biology · 2020
    Review
  20. 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

5 authors at 1 institution in 1 country.

Roxanne DutiaDepartment of Medicine, Columbia University College of Physicians and Surgeons, 630 West 168th Street, New York, New York 10032, USA.
Kana Meece
Shveta Dighe
Andrea J Kim
Sharon L Wardlaw
Columbia University · US

Funding

The Central Melanocortin System and Regulation of Energy BalanceR01DK080003 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WARDLAW, SHARON L. · 2008 to 2012
$1.8M
NIDDK NIH HHS DK 080003NIDDK NIH HHS R01 DK080003
6 · The paper itself

Abstract

Proopiomelanocortin (POMC) is posttranslationally processed to several peptides including α-MSH, a primary regulator of energy balance that inhibits food intake and stimulates energy expenditure. However, another POMC-derived peptide, β-endorphin (β-EP), has been shown to stimulate food intake. In this study we examined the effects of intracerebroventricular (icv) β-EP on food intake and its ability to antagonize the negative effects of α-MSH on energy balance in male rats. A single icv injection of β-EP stimulated food intake over a 2- to 6-h period during both the light and dark cycles. This effect was, however, not sustained with chronic icv β-EP infusion. In the next study, a subthreshold dose of β-EP was injected together with Nle(4), d-Phe(7) (NDP)-MSH after a 16-h fast, and the negative effects of NDP-MSH on refeeding and body weight gain were partially reversed. Finally, peptide interactions were studied in a chronic icv infusion model. Weight gain and food intake were significantly suppressed in the NDP-MSH group during the entire study. A subthreshold dose of β-EP antagonized these suppressive effects on food intake and weight gain for the first 3 d. However on d 4-7, β-EP no longer blocked these effects. Of note, the stimulatory effect of β-EP on feeding and its ability to antagonize MSH were specific for β-EP(1-31) and were not observed with β-EP(1-27). This study highlights the importance of understanding how the balance between α-MSH and β-EP is maintained and the potential role of differential POMC processing in regulating energy balance.

Indexed as

alpha-MSHAnimalsbeta-EndorphinBody WeightEatingMaleRatsRats, Sprague-Dawleyalpha-MSHbeta-Endorphin

Identifiers

PMID22778225
PMCPMC3423622
OpenAlexW2076168302

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.