Evidence map›Paper›PMID 37254732›Full record

ArticleClinical science (London, England : 1979)2023

Restoration of the gut barrier integrity and restructuring of the gut microbiome in aging by angiotensin-(1-7).

Kishore Chittimalli, Jesmin Jahan, Anil Sakamuri, Zachary L McAdams, Aaron C Ericsson, Yagna P R Jarajapu

Open access · hybridAbstract read
In one paragraph

Article in Clinical science (London, England : 1979), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Activation of Angiotensin-Converting Enzyme 2 Mitigates Gastrointestinal Acute Radiation Syndrome.International journal of radiation oncology, biology, physics · 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

6 authors at 2 institutions in 1 country.

Kishore ChittimalliDepartment of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A.
Jesmin JahanDepartment of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A.
Anil SakamuriDepartment of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A.
Zachary L McAdamsMissouri Metagenomics Center, Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO, U.S.A.
Aaron C EricssonMissouri Metagenomics Center, Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO, U.S.A.
Yagna P R JarajapuDepartment of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A.ORCID 0000-0002-7186-3693
North Dakota State University · USMissouri College · US

Funding

The Mutant Mouse Resource and Research Center at the University of Missouri - ResourceU42OD010918 · OD · UNIVERSITY OF MISSOURI-COLUMBIA · PI Bret Daniel Ulery · 2012 to 2026
$25.1M
Targeting Mas Receptor for Diabetic Vascular Disease in Older AdultsR01AG056881 · NIA · NORTH DAKOTA STATE UNIVERSITY · PI Yagna Jarajapu · 2017 to 2026
$3.2M
NIA NIH HHS R01 AG056881NIH HHS U42 OD010918
6 · The paper itself

Abstract

Compromised barrier function of colon epithelium with aging is largely due to gut microbial dysbiosis. Recent studies implicate an important role for angiotensin converting enzymes, ACE and ACE2, angiotensins, and the receptors, AT1 receptor (AT1R) and Mas receptor (MasR), in the regulation of colon functions. The present study tested the hypothesis that leaky gut in aging is associated with an imbalance in ACE2/ACE and that the treatment with angiotenisn-(1-7) (Ang-(1-7)) will restore gut barrier integrity and microbiome. Studies were carried out in Young (3-4 months) and old (20-24 months) male mice. Ang-(1-7) was administered by using osmotic pumps. Outcome measures included expressions of ACE, ACE2, AT1R, and MasR, intestinal permeability by using FITC-dextran, and immunohistochemistry of claudin 1 and occludin, and intestinal stem cells (ISCs). ACE2 protein and activity were decreased in Old group while that of ACE were unchanged. Increased intestinal permeability and plasma levels of zonulin-1 in the Old group were normalized by Ang-(1-7). Epithelial disintegrity, reduced number of goblet cells and ISCs in the old group were restored by Ang-(1-7). Expression of claudin 1 and occludin in the aging colon was increased by Ang-(1-7). Infiltration of CD11b+ or F4/80+ inflammatory cells in the old colons were decreased by Ang-(1-7). Gut microbial dysbiosis in aging was evident by decreased richness and altered beta diversity that were reversed by Ang-(1-7) with increased abundance of Lactobacillus or Lachnospiraceae. The present study shows that Ang-(1-7) restores gut barrier integrity and reduces inflammation in the aging colon by restoring the layer of ISCs and by restructuring the gut microbiome.

Indexed as

Gastrointestinal MicrobiomeAgingAngiotensin-Converting Enzyme 2Angiotensin IAngiotensin IIAnimalsClaudin-1DysbiosisMaleMiceOccludinPeptide FragmentsPeptidyl-Dipeptidase AAngiotensin-Converting Enzyme 2Angiotensin Iangiotensin I (1-7)Angiotensin IIClaudin-1OccludinPeptide FragmentsPeptidyl-Dipeptidase Aagingangiotensinscolon epithelial barrier integritymicrobiome

Identifiers

PMID37254732
PMCPMC10881191
OpenAlexW4378781747

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.