Evidence map›Paper›PMID 31572593›Full record

ArticleFood science & nutrition2019

Porcine placental extract facilitates memory and learning in aged mice.

Akihiro Yamauchi, Takahiro Tone, Koji Sugimoto, Hong Seok Lim, Taiichi Kaku, Chihiro Tohda, Takayuki Shindo, Koji Tamada, Yoichi Mizukami, Eiichi Hirano

Abstract read
In one paragraph

Article in Food science & nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

10 authors.

Akihiro YamauchiResearch Institute Japan Bio Products Co., Ltd. Kurume Japan.
Takahiro ToneResearch Institute Japan Bio Products Co., Ltd. Kurume Japan.
Koji SugimotoResearch Institute Japan Bio Products Co., Ltd. Kurume Japan.
Hong Seok LimJapan Bio Products Co., Ltd. Kurume Japan.
Taiichi KakuJapan Bio Products Co., Ltd. Kurume Japan.
Chihiro TohdaDivision of Neuromedical Science, Department of Bioscience, Institute of Natural Medicine University of Toyama Toyama Japan.
Takayuki ShindoDepartment of Cardiovascular Research Shinshu University Graduate School of Medicine Nagano Japan.
Koji TamadaDepartment of Immunology, Graduate School of Medicine Yamaguchi University Yamaguchi Japan.
Yoichi MizukamiInstitute of Gene Research Yamaguchi University Science Research Center Yamaguchi Japan.
Eiichi HiranoResearch Institute Japan Bio Products Co., Ltd. Kurume Japan.ORCID https://orcid.org/0000-0002-8607-1488

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aging induces a decline in both memory and learning ability without predisposing an individual to diseases of the central nervous system, such as dementia. This decline can have a variety of adverse effects on daily life, and it can also gradually affect the individual and the people they are surrounded by. Since recent evidence indicated that placental extract has effects on brain function such as memory, we hypothesized that placental extract could ameliorate the age-associated reduction in cognitive function in aging. Here, we investigated the effect of new modified porcine placental extract (SD-F) on memory ability in aged mice at both the behavioral and molecular levels. Our results revealed that SD-F significantly enhanced memory ability in the object recognition and object location tasks in a dose-dependent manner in aged mice relative to controls. The numbers of Nissl-positive cells in the hippocampal cornu ammonis 3 (CA3) and dentate gyrus (DG) regions were increased in SD-F-treated aged mice relative to controls. RNA-seq analysis of the hippocampus of aged mice identified 542 differentially expressed genes, of which 216 were up-regulated and 326 were down-regulated in SD-F-treated mice relative to controls. Of the 216 up-regulated genes, we identified four characteristic genes directly related to memory, including

Indexed as

aginghippocampusmemoryporcine placental extractRNA‐seq

Identifiers

PMID31572593
PMCPMC6766592

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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.