Evidence map›Paper›PMID 33441611›Full record

ArticleScientific reports2021

(-)-Gallocatechin gallate from green tea rescues cognitive impairment through restoring hippocampal silent synapses in post-menopausal depression.

Sukjin Ko, Won Seuk Jang, Ji-Hyun Jeong, Ji Woong Ahn, Young-Hwan Kim, Sohyun Kim, Hyeon Kyeong Chae, Seungsoo Chung

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Review
  3. Determination of Potential Inhibitors againstCurrent pharmaceutical design · 2026
    Review
  4. Article
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  7. Identification of potential inhibitors againstJournal of enzyme inhibition and medicinal chemistry · 2024
    Article
  8. Review
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  10. Article
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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

8 authors.

Sukjin Ko *Brain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
Won Seuk Jang *Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
Ji-Hyun JeongBrain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
Ji Woong AhnBrain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
Young-Hwan KimBnH Research Co., LTD., Goyang-si, Gyeonggi-do, 10594, Republic of Korea.
Sohyun KimBrain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
Hyeon Kyeong ChaeBnH Research Co., LTD., Goyang-si, Gyeonggi-do, 10594, Republic of Korea.
Seungsoo ChungBrain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea. sschung@yuhs.ac.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Post-menopausal depression (PMD) is a common psychological disorder accompanied by a cognitive deficit, which is caused by a series of uncontrolled emotional disruptions by strong environmental stressors during menopause. To overcome PMD-induced cognitive deficit, Green tea has been suggested as a dietary supplement because of its ameliorating effect on cognitive dysfunction induced by normal aging or neurodegenerative syndromes; however, its clinical use to improve PMD-accompanied cognitive deficit is still limited due to the controversy for the active ingredients and ambiguous mechanism of its action. Here, we developed modified high-temperature-processed green tea extract (HTP-GTE), which showed lower neuronal toxicity than the conventional green tea extract (GTE). We also demonstrated that HTP-GTE administration prevented the development of learned helplessness (LH) in a rat post-menopausal model. Additionally, HTP-GTE improved LH-induced cognitive impairments simultaneously with rescued the long-term synaptic plasticity. This occurred via the restoration of silent synapse formation by increasing the hippocampal BDNF-tyrosine receptor kinase B pathway in the helpless ovariectomized (OVX) rats. Likewise, we also identified that (-)-gallocatechin gallate was the main contributor of the HTP-GTE effect. Our findings suggested that HTP-GTE has a potential as a preventive nutritional supplement to ameliorate cognitive dysfunctions associated with PMD.

Indexed as

AnimalsAntioxidantsCatechinCognition DisordersCognitive DysfunctionDepressionDietary SupplementsFemaleHippocampusPlant ExtractsPostmenopauseRatsRats, Sprague-DawleySynapsesTeaAntioxidantsCatechingallocatechin gallatePlant ExtractsTea

Identifiers

PMID33441611
PMCPMC7806886

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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.