Evidence map›Paper›PMID 22778219›Full record

ReviewEndocrinology2012

Brain meets body: the blood-brain barrier as an endocrine interface.

William A Banks

Registry-linked trialOpen access · bronzeAbstract readReview
In one paragraph

Review in Endocrinology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05649605 (Early Mental Response to Hormonal Treatment in Transgender Men - The EMRE Study), which is not on this map. Cited by 76 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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.

NCT05649605 narecruitingnot on this mapstarted 2023, after this paper: background citation

Early Mental Response to Hormonal Treatment in Transgender Men - The EMRE Study

TypeinterventionalSponsorKarolinska University HospitalRan2023 to 2026Enrolled70ConditionsGender Dysphoria, Gender Identity, Gender IssuesArmsTestosterone treatment, Placebo treatment
3 · Its place in the literature

Who cites it

76 citing papers in PubMed, 1 synthesis or guideline pooled it, 159 citations in OpenAlex.

  1. Pooled it
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  5. Article
  6. A longitudinal study of CLDN5 DNA methylation and PTSD.Journal of behavioral medicine · 2026
    Article
  7. Review
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  10. Physical exercise increases binding of POMC to blood extracellular vesicles.Proceedings of the National Academy of Sciences of the United States of America · 2025
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16 more citing papers are in PubMed but not listed here.

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

1 author at 1 institution in 1 country.

William A BanksVeterans Affairs Puget Sound Health Care System and Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA. wabanks1@uw.edu
Geriatric Research Education and Clinical Center · US

Funding

Oxidative Dysfunction of LRP at the Blood-brain Barrier in Alzheimer's DiseaseR01AG029839 · NIA · SEATTLE INST FOR BIOMEDICAL/CLINICAL RES · PI BANKS, WILLIAM A · 2008 to 2012
$1.7M
Mitochondrial Carbonic Anhydrases and Diabetic Blood-Brain Barrier Disruption R01DK083485 · NIDDK · SAINT LOUIS UNIVERSITY · PI BANKS, WILLIAM A, SHAH, GUL NASREEN · 2011 to 2014
$1.3M
NIA NIH HHS R01 AG029839NIDDK NIH HHS R01 DK083485NINDS NIH HHS R01 NS051134
6 · The paper itself

Abstract

The blood-brain barrier (BBB) separates the central nervous system (CNS) from the peripheral tissues. However, this does not prevent hormones from entering the brain, but shifts the main control of entry to the BBB. In general, steroid hormones cross the BBB by transmembrane diffusion, a nonsaturable process resulting in brain levels that reflect blood levels, whereas thyroid hormones and many peptides and regulatory proteins cross using transporters, a saturable process resulting in brain levels that reflect blood levels and transporter characteristics. Protein binding, brain-to-blood transport, and pharmacokinetics modulate BBB penetration. Some hormones have the opposite effect within the CNS than they do in the periphery, suggesting that these hormones cross the BBB to act as their own counterregulators. The cells making up the BBB are also endocrine like, both responding to circulating substances and secreting substances into the circulation and CNS. By dividing a hormone's receptors into central and peripheral pools, the former of which may not be part of the hormone's negative feed back loop, the BBB fosters the development of variable hormone resistance syndromes, as exemplified by evidence that altered insulin action in the CNS can contribute to Alzheimer's disease. In summary, the BBB acts as a regulatory interface in an endocrine-like, humoral-based communication between the CNS and peripheral tissues.

Indexed as

AnimalsBiological TransportBlood-Brain BarrierBrainCentral Nervous SystemHormonesHumansHormones

Identifiers

PMID22778219
PMCPMC3423627
OpenAlexW2010589521

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.