Evidence map›Paper›PMID 24582860›Full record

ArticleMolecular and cellular endocrinology2014

Thyroid hormone induction of human cholesterol 7 alpha-hydroxylase (Cyp7a1) in vitro.

Jan A Lammel Lindemann, Anusha Angajala, David A Engler, Paul Webb, Stephen D Ayers

Abstract read
In one paragraph

Article in Molecular and cellular endocrinology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed, 50 citations in OpenAlex.

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  8. Actions of thyroid hormones and thyromimetics on the liver.Nature reviews. Gastroenterology & hepatology · 2025
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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.

Jan A Lammel LindemannHouston Methodist Research Institute, Houston, Texas, United States; Escuela de Biotecnología y Alimentos, Instituto Tecnológico y de Estudios Superiores de Monterrey, Mexico.
Anusha AngajalaHouston Methodist Research Institute, Houston, Texas, United States.
David A EnglerHouston Methodist Research Institute, Houston, Texas, United States.
Paul WebbHouston Methodist Research Institute, Houston, Texas, United States; Escuela de Biotecnología y Alimentos, Instituto Tecnológico y de Estudios Superiores de Monterrey, Mexico. Electronic address: PWebb@tmhs.org.
Stephen D AyersHouston Methodist Research Institute, Houston, Texas, United States. Electronic address: SDAyers@tmhs.org.
Houston Methodist · US

Funding

Optimal Selective Thyroid Hormone Analogs for Metabolic SyndromeRC4DK090849 · NIDDK · METHODIST HOSPITAL RESEARCH INSTITUTE · PI WEBB, PAUL · 2010 to 2010
$2.9M
NIDDK NIH HHS RC4 DK090849
6 · The paper itself

Abstract

Thyroid hormone (TH) modulates serum cholesterol by acting on TH receptor β1 (TRβ1) in liver to regulate metabolic gene sets. In rodents, one important TH regulated step involves induction of Cyp7a1, an enzyme in the cytochrome P450 family, which enhances cholesterol to bile acid conversion and plays a crucial role in regulation of serum cholesterol levels. Current models suggest, however, that Cyp7a1 has lost the capacity to respond to THs in humans. We were prompted to re-examine TH effects on cholesterol metabolic genes in human liver cells by a recent study of a synthetic TH mimetic which showed that serum cholesterol reductions were accompanied by increases in a marker for bile acid synthesis in humans. Here, we show that TH effects upon cholesterol metabolic genes are almost identical in mouse liver, mouse and human liver primary cells and human hepatocyte cell lines. Moreover, Cyp7a1 is a direct TR target gene that responds to physiologic TR levels through a set of distinct response elements in its promoter. These findings suggest that THs regulate cholesterol to bile acid conversion in similar ways in humans and rodent experimental models and that manipulation of hormone signaling pathways could provide a strategy to enhance Cyp7a1 activity in human patients.

Indexed as

AdenoviridaeAnimalsBase SequenceCholesterol 7-alpha-HydroxylaseEnzyme InductionGene ExpressionHEK293 CellsHep G2 CellsHumansMicePromoter Regions, GeneticProtein BindingThyroid Hormone Receptors betaTriiodothyronineCholesterol 7-alpha-HydroxylaseCYP7A1 protein, humanThyroid Hormone Receptors betaTriiodothyronineBile acidsCholesterolCyp7a1THTH receptor

Identifiers

PMID24582860
PMCPMC4180720
OpenAlexW2052628065

What OpenQuestion holds

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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.