Evidence map›Paper›PMID 30656835›Full record

ArticleActa physiologica (Oxford, England)2019

Impaired butyrate absorption in the proximal colon, low serum butyrate and diminished central effects of butyrate on blood pressure in spontaneously hypertensive rats.

Tao Yang, Kacy L Magee, Luis M Colon-Perez, Riley Larkin, Yan-Shin Liao, Eliza Balazic, Jonathan R Cowart, Rebeca Arocha, Ty Redler, Marcelo Febo and 4 more

Open access · greenAbstract read
In one paragraph

Article in Acta physiologica (Oxford, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 3 pooled it
16.5field-weighted citation impact, top 1% 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

68 citing papers in PubMed, 3 syntheses or guidelines pooled it, 109 citations in OpenAlex.

  1. Pooled it
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  11. Acetate concentration correlates with MSNA in patients with resistant hypertension.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
    Article
  12. Review
  13. Article
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  16. Gut Metagenome Reveals the Microbiome Signatures in Tibetan and Black Pigs.Animals : an open access journal from MDPI · 2025
    Article
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  18. Article
  19. Review
  20. Review

8 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

14 authors at 1 institution in 1 country.

Tao YangPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.ORCID 0000-0002-4182-9793
Kacy L MageePhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Luis M Colon-PerezDepartment of Psychiatry, College of Medicine, University of Florida, Gainesville, Florida.
Riley LarkinPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Yan-Shin LiaoPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Eliza BalazicPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Jonathan R CowartPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Rebeca ArochaPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Ty RedlerPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Marcelo FeboDepartment of Psychiatry, College of Medicine, University of Florida, Gainesville, Florida.
Thomas VickroyPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Christopher J MartyniukPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Leah R ReznikovPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
Jasenka ZubcevicPhysiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
University of Florida · US

Funding

Functional mapping of peripheral and central circuits for airway protection and breathingOT2OD023854 · OD · UNIVERSITY OF FLORIDA · PI BOLSER, DONALD C · 2016 to 2020
$10.8M
Neural Pathogenesis of Airway Smooth Muscle Defects in Airway DiseaseR00HL119560 · NHLBI · UNIVERSITY OF FLORIDA · PI REZNIKOV, LEAH R · 2016 to 2018
$747k
American Heart Association 14SDG18300010NHLBI NIH HHS R00 HL119560NIH HHS OT2 OD023854UF CVM Start Up Funds
6 · The paper itself

Abstract

aimButyrate is a major gut microbiota-derived metabolite. Reduced butyrate-producing bacteria has been reported in the spontaneously hypertensive rat (SHR), a model of hypertension characterized by dysfunctional autonomic nervous system and gut dysbiosis. Here, we demonstrate a potential mechanism for butyrate in blood pressure regulation.

methodsHigh-performance liquid chromatography and liquid chromatography-mass spectrometry were performed to measure butyrate levels in feces and serum. Ussing chamber determined butyrate transport in colon ex vivo. Real-time PCR and immunohistochemistry evaluated expression of butyrate transporter, Slc5a8, in the colon. Mean arterial blood pressure was measured in catheterized anesthetized rats before and after a single butyrate intracerebroventricular injection. Activity of cardioregulatory brain regions was determined by functional magnetic resonance imaging to derive neural effects of butyrate.

resultsIn the SHR, we demonstrated elevated butyrate levels in cecal content, but diminished butyrate levels in circulation, possibly due to reduced expression of Slc5a8 transporter in the colon. In addition, we observed lower expression levels of butyrate-sensing receptors in the hypothalamus of SHR, likely leading to the reduced effects of centrally administered butyrate on blood pressure in the SHR. Functional magnetic resonance imaging revealed reduced activation of cardioregulatory brain regions following central administration of butyrate in the SHR compared to control.

conclusionWe demonstrated a reduced availability of serum butyrate in the SHR, possibly due to diminished colonic absorption. Reduced expression of butyrate-sensing receptors in the SHR hypothalamus may explain the reduced central responsiveness to butyrate, indicating microbial butyrate may play a role in blood pressure regulation.

Indexed as

Intestinal AbsorptionAnimalsArterial PressureBlood PressureButyratesColonGastrointestinal MicrobiomeHypertensionRatsButyratesabsorptionblood pressurebutyrategut microbiotaneuronal activity

Identifiers

PMID30656835
PMCPMC7199780
OpenAlexW2910092953

What Socratic 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 Socratic graph.