Evidence map›Paper›PMID 31814923›Full record

ArticleNutrition research and practice2019

Study of the cartilage matrix production-promoting effect of chicken leg extract and identification of the active ingredient.

Hiroaki Yamada, Utano Nakamura, Toshio Nakamura, Yoshikazu Uchida, Atsushi Yamatsu, Mujo Kim

Open access · hybridAbstract read
In one paragraph

Article in Nutrition research and practice, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 35% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Review
  3. 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

6 authors.

Hiroaki YamadaPharma Foods International Co., Ltd., 1-49 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID https://orcid.org/0000-0003-3304-8185
Utano NakamuraPharma Foods International Co., Ltd., 1-49 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID https://orcid.org/0000-0001-9487-0522
Toshio NakamuraPharma Foods International Co., Ltd., 1-49 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID https://orcid.org/0000-0001-9500-1783
Yoshikazu UchidaPharma Foods International Co., Ltd., 1-49 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID https://orcid.org/0000-0002-4980-3416
Atsushi YamatsuPharma Foods International Co., Ltd., 1-49 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID https://orcid.org/0000-0003-0452-8913
Mujo KimPharma Foods International Co., Ltd., 1-49 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID https://orcid.org/0000-0002-8862-8542

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesOsteoarthritis (OA) is a major public health issue in Japan and other countries, and foods that prevent or treat OA are in strong demand. Proteins and peptides in chicken meat and bones are known for being rich in functional and nutritional ingredients for the improvement of osteoporosis. We speculated that chicken legs, a food consumed in many regions of the world, may also contain such ingredients. In this study, we aim to (i) evaluate the effect of chicken leg extract (CLE) on the promotion of cartilage matrix production and (ii) identify the active ingredient in CLE that contributes to this function. MATERIALS/

methodsArtificial CLE digest was prepared, and the acid mucopolysaccharide production-promoting activity of the CLE digest was evaluated by alcian blue staining of ATDC5 cells. CLE was orally administered to rabbits with burr holes in the knee joint of the femur, and the degree of regeneration of cartilage matrix was evaluated. Furthermore, we investigated orally administered CLE-derived peptides in human plasma using LC-MS. From measuring the acid mucopolysaccharide production-promotion activity of these peptides, a molecule considered to be an active ingredient in the CLE digest was identified.

resultsCLE digest promoted acid mucopolysaccharide production and facilitated regeneration of cartilage matrix in

conclusionsIt was shown that CLE stimulated the production of articular cartilage matrix both

Indexed as

cartilagechicken legOsteoarthritisphenylalanyl-hydroxyproline

Identifiers

PMID31814923
PMCPMC6883235
OpenAlexW2980783813

What OpenQuestion holds

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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.