Evidence map›Paper›PMID 17825101›Full record

ArticleJournal of inflammation (London, England)2007

Soy isoflavones avert chronic inflammation-induced bone loss and vascular disease.

Elizabeth A Droke, Kelly A Hager, Megan R Lerner, Stan A Lightfoot, Barbara J Stoecker, Daniel J Brackett, Brenda J Smith

Open access · goldAbstract read
In one paragraph

Article in Journal of inflammation (London, England), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Lipopolysaccharide-Induced Bone Loss in Rodent Models: A Systematic Review and Meta-Analysis.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2023
    Pooled it
  2. Reduction of inflammation in chronic pancreatitis using a soy bread intervention: A feasibility study.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2020
    Trial
  3. Article
  4. Experimental animal models of chronic inflammation.Current research in immunology · 2023
    Review
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  20. Green tea polyphenols avert chronic inflammation-induced myocardial fibrosis of female rats.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2011
    Article
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 at 4 institutions in 1 country.

Elizabeth A Droke *Department of Nutrition, Food Science and Hospitality, South Dakota State University, Brookings, SD 57006, USA.
Kelly A HagerDepartment of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
Megan R LernerDepartment of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73190, USA.
Stan A LightfootVeterans Affairs Medical Center, Oklahoma City, OK 73190, USA.
Barbara J StoeckerDepartment of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
Daniel J BrackettDepartment of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73190, USA.
Brenda J Smith *Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
Oklahoma State University · USUniversity of Oklahoma Health Sciences Center · USSouth Dakota State University · USVeterans Health Administration · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEvidence from epidemiological, clinical and animal studies suggests a link may exist between low bone density and cardiovascular disease, with inflammatory mediators implicated in the pathophysiology of both conditions. This project examined whether supplementation with soy isoflavones (IF), shown to have anti-inflammatory properties, could prevent tissue expression of TNF-alpha and the development of skeletal pathology in an animal model of chronic inflammation.

methodsEight-week old, intact, female C57BL/6J mice were used. In Phase 1, a lipopolysaccharide (LPS)-dose response study (0, 0.133, 1.33 and 13.3 mug/d) was conducted to determine the LPS dose to use in Phase 2. The results indicated the 1.33 mug LPS/d dose produced the greatest decrease in lymphocytes and increase in neutrophils. Subsequently, in Phase 2, mice were randomly assigned to one of six groups (n = 12-13 per group): 0 or 1.33 mug LPS/d (placebo or LPS) in combination with 0, 126 or 504 mg aglycone equivalents of soy IF/kg diet (Control, Low or High dose IF). Mice were fed IF beginning 2 wks prior to the 30-d LPS study period.

resultsAt the end of the study, no differences were detected in final body weights or uterine weights. In terms of trabecular bone microarchitecture, muCT analyses of the distal femur metaphysis indicated that LPS significantly decreased trabecular bone volume (BV/TV) and number (TbN), and increased separation (TbSp). Trabecular bone strength (i.e. total force) and stiffness were also compromised in response to LPS. The High IF dose provided protection against these detrimental effects on microarchitecture, but not biomechanical properties. No alterations in trabecular thickness (TbTh), or cortical bone parameters were observed in response to the LPS or IF. Immunohistomchemical staining showed that tumor necrosis factor (TNF)-alpha was up-regulated by LPS in the endothelium of small myocardial arteries and arterioles as well as the tibial metaphysis and down-regulated by IF.

conclusionThese results suggest IF may attenuate the negative effects of chronic inflammation on bone and cardiovascular health. Additional research is warranted to examine the anti-inflammatory properties of the soy isoflavones and the mechanisms underlying their prevention of chronic inflammation-induced bone loss.

Identifiers

PMID17825101
PMCPMC2034375
OpenAlexW2085938794

What OpenQuestion holds

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LicenceCC BY
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.