Evidence map›Paper›PMID 26223876›Full record

ArticleHistochemistry and cell biology2015

An immunohistochemical analysis of SERT in the blood-brain barrier of the male rat brain.

Lindsey W Young, Emma S Darios, Stephanie W Watts

Abstract read
In one paragraph

Article in Histochemistry and cell biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.4field-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

18 citing papers in PubMed, 30 citations in OpenAlex.

  1. Trial
  2. The Neurochemical Orchestra of the Runner's High: A Narrative Review of Neuromodulatory Mechanisms with a Focus on Endocannabinoids.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2026
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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

3 authors at 1 institution in 1 country.

Lindsey W YoungDepartment of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA.
Emma S DariosDepartment of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA. dariosem@msu.edu.
Stephanie W WattsDepartment of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA. wattss@msu.edu.
Michigan State University · US

Funding

Vascular and Neural Mechanisms of Serotonin-induced Reduction in Blood PressureR01HL107495 · NHLBI · MICHIGAN STATE UNIVERSITY · PI WATTS, STEPHANIE W · 2012 to 2015
$1.4M
NHLBI NIH HHS R01 HL107495NHLBI NIH HHS R01HL107495
6 · The paper itself

Abstract

5-Hydroxytryptamine (5-HT) was originally discovered as a vasoconstrictor. 5-HT lowers blood pressure when administered peripherally to both normotensive and hypertensive male rats. Because the serotonin transporter (SERT) can function bidirectionally, we must consider whether 5-HT can be transported from the bloodstream to the central nervous system (CNS) in facilitating the fall in blood pressure. The blood-brain barrier (BBB) is a highly selective barrier that restricts movement of substances from the bloodstream to the CNS and vice versa, but the rat BBB has not been investigated in terms of SERT expression. This requires us to determine whether the BBB of the rat, the species in which we first observed a fall in blood pressure to infused 5-HT, expresses SERT. We hypothesized that SERT is present in the BBB of the male rat. To test this hypothesis, over 500 blood vessels were sampled from coronal slices of six male rat brains. Immunofluorescence of these coronal slices was used to determine whether SERT and RecA-1 (an endothelial cell marker) colocalized to the BBB. Blood vessels were considered to be capillaries if they were between 1.5 and 23 µm (intraluminal diameter). SERT was identified in the largest pial vessels of the BBB (mean ± SEM = 228.70 ± 18.71 µm, N = 9) and the smallest capillaries (mean ± SEM = 2.75 ± 0.12 µm, N = 369). SERT was not identified in the endothelium of blood vessels ranging from 20 to 135 µm (N = 45). The expression of SERT in the rat BBB means that 5-HT entry into the CNS must be considered a potential mechanism when investigating 5-HT-induced fall in blood pressure.

Indexed as

Fluorescent Antibody TechniqueAnimalsBlood-Brain BarrierCapillariesEndothelial CellsMaleRatsRNA-Binding ProteinsRNA-Binding ProteinsSert1 protein, rat5-HTBlood brain barrierRatSerotonin transporter

Identifiers

PMID26223876
PMCPMC4575874
OpenAlexW971526569

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.