Evidence map›Paper›PMID 38820403›Full record

ArticlePloS one2024

Heat-killed Limosilactobacillus reuteri ATCC PTA 6475 prevents bone loss in ovariectomized mice: A preliminary study.

Jaqueline Lemes Ribeiro, Thaís Aguiar Santos, Maíra Terra Garcia, Bruna Fernandes do Carmo Carvalho, Juan Emmanuel Costa Sant'Ana Esteves, Renata Mendonça Moraes, Ana Lia Anbinder

Abstract read
In one paragraph

Article in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Trial
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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

7 authors.

Jaqueline Lemes RibeiroDepartment of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos (São Paulo State University-Unesp), São José dos Campos, São Paulo, Brazil.ORCID 0000-0002-6398-7880
Thaís Aguiar SantosDepartment of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos (São Paulo State University-Unesp), São José dos Campos, São Paulo, Brazil.
Maíra Terra GarciaDepartment of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos (São Paulo State University-Unesp), São José dos Campos, São Paulo, Brazil.
Bruna Fernandes do Carmo CarvalhoDepartment of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos (São Paulo State University-Unesp), São José dos Campos, São Paulo, Brazil.
Juan Emmanuel Costa Sant'Ana EstevesPrivate Practice, São José dos Campos, São Paulo, Brazil.
Renata Mendonça MoraesDepartment of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos (São Paulo State University-Unesp), São José dos Campos, São Paulo, Brazil.
Ana Lia AnbinderDepartment of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos (São Paulo State University-Unesp), São José dos Campos, São Paulo, Brazil.ORCID 0000-0003-3930-4274

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteoporosis is an important health problem that occurs due to an imbalance between bone formation and resorption. Hormonal deficiency post-menopause is a significant risk factor. The probiotic Limosilactobacillus reuteri has been reported to prevent ovariectomy (Ovx)-induced bone loss in mice and reduce bone loss in postmenopausal women. Despite the numerous health benefits of probiotics, as they are live bacteria, the administration is not risk-free for certain groups (e.g., neonates and immunosuppressed patients). We evaluated the effects of L. reuteri (ATCC PTA 6475) and its heat-killed (postbiotic) form on Ovx-induced bone loss. Adult female mice (BALB/c) were randomly divided into four groups: group C-control (sham); group OVX-C-Ovx; group OVX-POS-Ovx + heat-killed probiotic; group OVX-PRO-Ovx + probiotic. L. reuteri or the postbiotic was administered to the groups (1.3x109 CFU/day) by gavage. Bacterial morphology after heat treatment was accessed by scanning electron microscopy (SEM). The treatment started one week after Ovx and lasted 28 days (4 weeks). The animals were euthanized at the end of the treatment period. Bone microarchitecture and ileum Occludin and pro-inflammatory cytokines gene expression were evaluated by computed microtomography and qPCR techniques, respectively. The Ovx groups had lower percentage of bone volume (BV/TV) and number of bone trabeculae as well as greater total porosity compared to the control group. Treatment with live and heat-killed L. reuteri resulted in higher BV/TV and trabecular thickness than the Ovx group. The heat treatment caused some cell surface disruptions, but its structure resembled that of the live probiotic in SEM analysis. There were no statistical differences in Occludin, Il-6 and Tnf-α gene expression. Both viable and heat-killed L. reuteri prevented bone loss on ovariectomized mice, independently of gut Occludin and intestinal Il-6 and Tnf-α gene expression.

Indexed as

Limosilactobacillus reuteriOsteoporosisOvariectomyProbioticsAnimalsFemaleHot TemperatureMiceMice, Inbred BALB C

Identifiers

PMID38820403
PMCPMC11142514

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Registered trials

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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.