Evidence map›Paper›PMID 39574138›Full record

ArticleBiological research2024

Depression like-behavior and memory loss induced by methylglyoxal is associated with tryptophan depletion and oxidative stress: a new in vivo model of neurodegeneration.

Md Samsuzzaman, Seong-Min Hong, Jae Hyuk Lee, Hyunjun Park, Keun-A Chang, Hyun-Bum Kim, Myoung Gyu Park, Hyeyoon Eo, Myung Sook Oh, Sun Yeou Kim

Abstract read
In one paragraph

Article in Biological research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

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

  1. Pooled it
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  15. 2',4',6'-Trimethoxyacetophenone Isolated fromBiomolecules & therapeutics · 2025
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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.

Md Samsuzzaman *College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea.
Seong-Min Hong *College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea.
Jae Hyuk LeeCollege of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea.
Hyunjun ParkDepartment of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, Incheon, Republic of Korea.
Keun-A ChangDepartment of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, Incheon, Republic of Korea.
Hyun-Bum KimDepartment of East-West Medical Science, Graduate School of East-West Medical, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Korea.
Myoung Gyu ParkMetaCen Therapeutics Company, Changnyong-daero 256 Beon-gil, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16229, Republic of Korea.
Hyeyoon EoCollege of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro Dongdaemun-gu, Seoul, 02447, Republic of Korea.
Myung Sook OhCollege of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro Dongdaemun-gu, Seoul, 02447, Republic of Korea.
Sun Yeou KimCollege of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea. sunnykim@gachon.ac.kr.ORCID http://orcid.org/0000-0001-8044-5613

Funding

Gachon University GCU-202008420002Ministry of Education NRF-2023R1A2C2003366Ministry of Education RS-2023-00237607
6 · The paper itself

Abstract

backgroundDepression and memory loss are prevalent neurodegenerative disorders, with diabetic patients facing an elevated risk of brain dysfunction. Methylglyoxal (MGO) formation, which is heightened in diabetes owing to hyperglycemia and gut dysbiosis, may serve as a critical link between diabetes and brain diseases. Despite the high prevalence of MGO, the precise mechanisms underlying MGO-induced depression and memory loss remain unclear.

resultsWe investigated the effect of MGO stress on depression like-behavior and memory loss to elucidate the potential interplay between MGO-induced tryptophan (Trp) metabolism impairment and oxidative stress in the brain. It demonstrates that MGO induces depression-like behavior in mice, as confirmed by the OFT, TST, FST, SPT, and EPM behavioral tests. MGO led to the depletion of Trp and related neurotransmitters as 5-HT, EPI, and DA in the mouse brain. Additionally, MGO reduced the cell count in the DG, CA1, and CA3 hippocampal regions and modulated TPH2 levels in the brain. Notably, co-treatment with MGO and Trp mirrored the effects observed after Trp-null treatment in neurons, including reduced TPH1 and TPH2 levels and inhibition of neuronal outgrowth. Furthermore, MGO significantly altered the expression of key proteins associated with neurodegeneration, such as p-Tau, p-GSK-3β, APP, oAβ, BDNF, NGF, and p-TrkB. Concurrently, MGO activated MAPKs through ROS induction, triggering a redox imbalance by downregulating Nrf-2, Ho-1, TXNRD1, Trx, Sirt-3, and Sirt-5 expression levels, NAD

conclusionsOur data revealed that MGO-induced depression like-behavior and memory deficits resulted from disturbances in Trp, 5-HT, BDNF, and NGF levels, increased p-Tau and APP expression, neuroinflammation, and impaired redox status (Nrf-2/Ho-1/TXNRD1/Sirt3/5) in the brain.

Indexed as

DepressionDisease Models, AnimalMemory DisordersOxidative StressPyruvaldehydeTryptophanAnimalsBrainMaleMiceMice, Inbred C57BLNeurodegenerative DiseasesPyruvaldehydeTryptophanBDNFDepressionMAPKMethylglyoxalNrf-2/Ho-1/TrxTauTryptophan

Identifiers

PMID39574138
PMCPMC11580208

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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.