Evidence map›Paper›PMID 20090767›Full record

ArticleThe Journal of investigative dermatology2010

Hair growth defects in Insig-deficient mice caused by cholesterol precursor accumulation and reversed by simvastatin.

Bret M Evers, Midhat S Farooqi, John M Shelton, James A Richardson, Joseph L Goldstein, Michael S Brown, Guosheng Liang

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of investigative dermatology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

34 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
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  7. Dominant missense variants in SREBF2 are associated with complex dermatological, neurological, and skeletal abnormalities.Genetics in medicine : official journal of the American College of Medical Genetics · 2024
    Article
  8. A novel homozygous mutation inFrontiers in physiology · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Big Data Reveal Insights into Alopecia Areata Comorbidities.The journal of investigative dermatology. Symposium proceedings · 2018
    Article
  17. Article
  18. Skin-specific regulation of SREBP processing and lipid biosynthesis by glycerol kinase 5.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  19. Article
  20. Genetically modified laboratory mice with sebaceous glands abnormalities.Cellular and molecular life sciences : CMLS · 2016
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Bret M EversDepartment of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Midhat S Farooqi
John M Shelton
James A Richardson
Joseph L Goldstein
Michael S Brown
Guosheng Liang
The University of Texas Southwestern Medical Center · US

Funding

TRANSCRIPTIONAL REGULATION OF LDL RECEPTOR PROMOTERP01HL020948 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI RUSSELL, DAVID W. · 1985 to 2021
$103.1M
TRAINING THE MD PHD IN THE HEALTH SCIENCE CENTERT32GM008014 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI ZINN, ANDREW R. · 1985 to 2024
$21.1M
NHLBI NIH HHS HL-20948NHLBI NIH HHS P01 HL020948NIGMS NIH HHS T32 GM008014
6 · The paper itself

Abstract

Insig-1 and Insig-2, two closely related proteins, are essential for feedback inhibition of cholesterol biosynthesis. Here, we characterized a line of epidermal-specific, Insig-double knockout (Epi-Insig-DKO) mice lacking both Insigs in epidermis. At birth, Epi-Insig-DKO mice were indistinguishable from control littermates, but thereafter they failed to thrive and died before 6 weeks of age. By 14 days of age, 100% of Epi-Insig-DKO mice exhibited defects in hair growth along with other skin abnormalities, including hyperkeratosis. Hair follicles in Epi-Insig-DKO mice developed normally through postnatal day 7, but they failed to progress to later stages and thus exhibited defects in postnatal hair cycling. Insig deficiency caused a marked buildup of cholesterol precursors in skin associated with a marked increase in 3-hydroxy-3-methylglutaryl coenzyme A reductase protein. Topical treatment of Epi-Insig-DKO mice with simvastatin, an inhibitor of reductase, reduced sterol precursors in skin and corrected the hair and skin defects. We conclude that Insig deficiency in skin causes accumulation of cholesterol precursors, and this impairs normal hair development. These findings have implications for several human genetic diseases in which mutations in cholesterol biosynthetic enzymes lead to accumulation of sterol precursors and multiple cutaneous abnormalities.

Indexed as

Hair DiseasesAnimalsAnticholesteremic AgentsBody SizeCholesterolEpidermisHair FollicleMembrane ProteinsMiceMice, KnockoutSimvastatinAnticholesteremic AgentsCholesterolInsig1 protein, mouseInsig2 protein, mouseMembrane ProteinsSimvastatin

Identifiers

PMID20090767
PMCPMC2929004
OpenAlexW2166301153

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.