Evidence map›Paper›PMID 18490140›Full record

ArticleNutrition (Burbank, Los Angeles County, Calif.)

Consumption of hydrolyzable tannins-rich pomegranate extract suppresses inflammation and joint damage in rheumatoid arthritis.

Meenakshi Shukla, Kalpana Gupta, Zafar Rasheed, Khursheed A Khan, Tariq M Haqqi

Abstract read
In one paragraph

Article in Nutrition (Burbank, Los Angeles County, Calif.). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing 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

60 citing papers in PubMed.

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  15. Pomegranate (Foods (Basel, Switzerland) · 2022
    Review
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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

5 authors.

Meenakshi ShuklaDivision of Rheumatic Diseases, Department of Medicine, Case Western Reserve University/University Hospitals of Cleveland, Cleveland, Ohio, USA.
Kalpana Gupta
Zafar Rasheed
Khursheed A Khan
Tariq M Haqqi

Funding

MECHANISMS OF CHONDROPROTECTION BY POMEGRANATE FRUIT EXTRACTR01AT003627 · NCCIH · UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA · PI HAQQI, TARIQ M · 2007 to 2011
$1.7M
PREVENTION OF CARTILAGE DEGRADATION BY GREEN TEAR01AR048782 · NIAMS · CASE WESTERN RESERVE UNIVERSITY · PI HAQQI, TARIQ M · 2002 to 2006
$1.4M
NCCIH NIH HHS R01 AT003627NIAMS NIH HHS R01 AR048782
6 · The paper itself

Abstract

objectiveAlthough consumption of dietary supplements containing pomegranate extract (POMx) by patients with arthritis is on the rise, the efficacy of such preparations in suppressing joint inflammation and damage is not known. The present study was designed to evaluate a standardized preparation of POMx using collagen-induced arthritis (CIA) in mice, a widely used animal model of rheumatoid arthritis.

methodsCIA-susceptible DBA/1 mice were fed POMx by gavage before and after immunization with chicken type II collagen. Severity of clinical arthritis was scored using a visual scoring system. Arthritic joints were analyzed by histopathology and graded. Lysates were generated from mouse joints and levels of anti-type II collagen immunoglobulin G and inflammatory cytokines interleukin (IL)-1beta, IL-6, and tumor necrosis factor-alpha were quantified by enzyme-linked immunosorbent assay. The effect of POMx on lipopolysaccharide-induced nitric oxide production was determined by Griess reaction and mitogen-activated protein kinase activation was studied by western immunoblotting in mouse macrophages.

resultsConsumption of POMx potently delayed the onset and reduced the incidence of CIA in mice. Severity of arthritis was also significantly lower in POMx-fed animals. Histopathology of the arthritic joints from POMx-fed mice demonstrated reduced joint infiltration by the inflammatory cells, and the destruction of bone and cartilage were alleviated. Levels of IL-6 were significantly decreased in the joints of POMx-fed mice with CIA. In mouse macrophages, POMx abrogated multiple signal transduction pathways and downstream mediators implicated in the pathogenesis of rheumatoid arthritis.

conclusionOur studies suggest that inhibition of a spectrum of signal transduction pathways and the downstream pathogenic cellular response by POMx or compounds derived from it may be a useful approach for the prevention of the onset and severity of inflammatory arthritis.

Indexed as

AnimalsArthritis, ExperimentalArthritis, RheumatoidBone and BonesCartilageCollagenDietary SupplementsDisease Models, AnimalHydrolyzable TanninsInterleukin-6JointsLythraceaeMaleMiceMice, Inbred DBAPlant ExtractsCollagenHydrolyzable TanninsInterleukin-6Plant ExtractsTumor Necrosis Factor-alpha

Identifiers

PMID18490140
PMCPMC2577876

What OpenQuestion holds

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Read underepoch 390

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.