Evidence map›Paper›PMID 34727681›Full record

ArticleJournal of Korean Neurosurgical Society2022

The Effect of Genetically Modified Lactobacillus plantarum Carrying Bone Morphogenetic Protein 2 Gene on an Ovariectomized Rat.

Eun-Sun Jin, Ji Yeon Kim, Jung-Mo Yang, Jun-Sub Kim, JoongKee Min, Sang Ryong Jeon, Kyoung Hyo Choi, Gi-Seong Moon, Je Hoon Jeong

Open access · goldAbstract read
In one paragraph

Article in Journal of Korean Neurosurgical Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 38% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
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

9 authors at 3 institutions in 1 country.

Eun-Sun JinDepartment of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, Korea.
Ji Yeon KimLaboratory of Stem Cell Therapy, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea.
Jung-Mo YangDepartment of Biotechnology, Korea National University of Transportation, Jeungpyeong, Korea.
Jun-Sub KimDepartment of Biotechnology, Korea National University of Transportation, Jeungpyeong, Korea.
JoongKee MinLaboratory of Stem Cell Therapy, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea.
Sang Ryong JeonLaboratory of Stem Cell Therapy, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea.
Kyoung Hyo ChoiLaboratory of Stem Cell Therapy, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea.
Gi-Seong MoonDepartment of Biotechnology, Korea National University of Transportation, Jeungpyeong, Korea.
Je Hoon JeongLaboratory of Stem Cell Therapy, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea.
Asan Medical Center · KRKorea National University of Transportation · KRSoonchunhyang University · KR

Funding

Ministry of Science and ICTNational Research Foundation of Korea 2017R1A2B1005327Soonchunhyang University
6 · The paper itself

Abstract

objectiveOsteoporosis result from age-related decline in the number of osteoblast progenitors in the bone marrow. Probiotics have beneficial effects on the host, when administered in appropriate amounts. This study investigated the effects of probiotics expressing specific genes, especially the effects of genetically modified bone morphogenetic protein (BMP)-2-expressing Lactobacillus plantarum CJNU 3003 (LP) on ovariectomized rats.

methodsTwenty-eight female Wistar rats (250-300 g, 12 weeks old) were divided into four groups : the sham (control), the ovariectomy (OVX)-induced osteoporosis group (OVX), the OVX and LP (OVX/LP), OVX and genetically modified BMP-2-expressing LP (OVX/LP with BMP) groups. The three groups underwent bilateral OVX and two of these groups were administered two different types of LP via oral gavage daily. At 16 weeks post-OVX, blood was collected from the heart and the bilateral tibiae were extracted and were scanned by ex-vivo micro-computed tomography and stained with hematoxylin-and-eosin (H&E) and Masson's trichrome stain for pathological assessment. The serum levels of osteocalcin (OC), rat C-telopeptide of type I collagen (CTX-I), BMP-2, and receptor activator of nuclear factor-ĸB ligand (RANKL) were measured.

resultsThe 3D-micro-computed tomography images showed that the trabecular structure in the OVX/LP with BMP group was maintained compared with OVX and OVX/LP groups. No significant differences were detected in trabecular thickness (Tb.Th) between control and OVX/LP with BMP groups (p>0.05). Furthermore, a tendency toward increased BMD, trabecular bone volume, Tb.Th, and trabecular number and decreased trabecular separation was found in rats in the OVX/LP with BMP groups when compared with the OVX and OVX/LP groups (p>0.05). The H&E and Masson's trichrome stained sections showed a thicker trabecular bone in the OVX/LP with BMP group compared with the OVX and OVX/LP groups. There was no difference in serum levels of OC, CTX and RANKL control and OVX/LP with BMP groups (p>0.05). In contrast, significant differences were found in OC and CTX-1 levels between the OVX and OVX/LP with BMP groups (p<0.05).

conclusionOur results showed that the expression of genetically modified BMP-2 showed inhibition effect for bone loss in a rat model of osteoporosis.

Indexed as

Bone morphogenetic protein 2Gene editingModels, animalOsteoporosisProbiotics

Identifiers

PMID34727681
PMCPMC8918239
OpenAlexW3208608237

What Socratic holds

Textmetadata
LicenceCC BY-NC
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.