Evidence mapPaperPMID 41539606Full record

ArticleJournal of lipid research2026

Tryptophan and polyamine metabolism dysregulation serves as an early marker of high-fat diet-induced glucose intolerance.

Jianfang Gao, Li Zhang, Shumin Zhan, Zhou Peng, Juan Du, Zhongxiao Zhang, Liling Xu, Shan Huang, Xingyun Wang, Xirong Guo

Abstract read
In one paragraph

Article in Journal of lipid research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. SRM-Mediated Spermidine Synthesis Links Lipid Overload With AMPK Pathway to Regulate Hepatic Insulin Signaling and Gluconeogenesis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    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

10 authors.

Jianfang GaoEndocrinology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Li ZhangHongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Shumin ZhanDepartment of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
Zhou PengEndocrinology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Juan DuEndocrinology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Zhongxiao ZhangHongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Liling XuHongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Shan HuangEndocrinology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Xingyun WangHongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address: wxy@shsmu.edu.cn.
Xirong GuoEndocrinology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address: xrguo@shsmu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A high-fat diet (HFD) induces metabolic dysfunction early, before the onset of the classic obese phenotype. However, understanding this early process remains limited, and potential diagnostic systems are still poorly investigated, particularly in childhood obesity. Continuous blood glucose monitoring was performed in mice to evaluate the early metabolic effects of HFD exposure. Metabolomic and transcriptomic analyses were conducted to characterize metabolic and transcriptional changes at various HFD feeding stages and investigate underlying mechanisms. Venn analysis was applied to identify metabolites specific to early HFD exposure. These metabolites were further compared with those detected in obese children to identify potential early warning biomarkers of obesity. Week 3 of HFD feeding was identified as a critical turning point in metabolic dysfunction in mice. Metabolomic profiling revealed that significant metabolic remodeling had occurred before glucose intolerance, particularly involving alterations in tryptophan metabolism, polyamine metabolism, and glycerophospholipid metabolism. Moreover, 54 HFD-specific metabolites were identified during this early stage. Further analysis identified serotonin, formiminoglutamate, inosine, and spermine as potential early warning biomarkers for HFD-induced obesity. Finally, transcriptomic profiling revealed early activation of interleukin-17A and type I interferon pathways, implicating immune involvement in metabolic perturbations. Early HFD exposure induces metabolic reprogramming before the onset of glucose intolerance. These_under_edi findings provide new insights into the mechanisms of diet-induced metabolic dysfunction and support the identification of potential biomarkers for early detection, particularly in childhood obesity. Early high-fat diet exposure induces metabolic reprogramming before glucose intolerance, characterized by alterations in tryptophan and polyamine metabolism and revealing candidate early biomarkers of obesity.

Indexed as

Diet, High-FatGlucose IntolerancePolyaminesTryptophanAnimalsBiomarkersHumansMaleMetabolomicsMiceMice, Inbred C57BLObesityBiomarkersPolyaminesTryptophandysglycemiahigh-fat dietmetabolic perturbationspolyamine metabolismtryptophan metabolism

Identifiers

PMID41539606
PMCPMC12907098

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

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 Socratic graph.