Evidence map›Paper›PMID 40332749›Full record

ArticleHormones (Athens, Greece)2025

Age-specific relationships between free triiodothyronine and biological aging.

Chang Liu, Xue-Chun Han, Lin Hua, Zhong Xin

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Article in Hormones (Athens, Greece), 2025. 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
–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

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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.

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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

4 authors.

Chang Liu *Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, 1 Dong Jiao Min Xiang, Beijing, 100730, China.
Xue-Chun Han *Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, 1 Dong Jiao Min Xiang, Beijing, 100730, China.
Lin HuaDepartment of Mathematics, School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China. hualin7750@ccmu.edu.cn.
Zhong XinDepartment of Endocrinology, Beijing Tongren Hospital, Capital Medical University, 1 Dong Jiao Min Xiang, Beijing, 100730, China. xinz@medmail.com.cn.ORCID http://orcid.org/0000-0002-6840-1922

Funding

Beijing High-Level Public Health Technical Personnel Training Project Grant 03-44
6 · The paper itself

Abstract

objectiveOur study aims to examine the associations of thyroid function parameters with phenotypic age acceleration (PhenoAgeAccel) in different age groups.

methodThe analysis included 7,564 participants from the NHANES 1999-2018. PhenoAgeAccel was defined as calculated phenotypic age (PhenoAge) exceeding chronological age. Weighted multivariable logistic regression models were used to analyze the relationship between free triiodothyronine (FT3) and PhenoAgeAccel. The restricted cubic spline method was used to assess nonlinear associations of FT3 level with PhenoAgeAccel. Nomogram and the receiver operating characteristic (ROC) curve were constructed to evaluate the diagnostic performance of the predictive model.

resultsHigher FT3 levels were associated with increased risk of PhenoAgeAccel in participants under 60 years old (OR: 1.316, 95% CI: (1.010, 1.715), p = 0.042). For those aged 60 years and above, higher FT3 levels were linked with decreased risk of PhenoAgeAccel (OR: 0.485, 95% CI: (0.309, 0.761), p = 0.002). These associations were more pronounced in males than in females. Restricted cubic spline curves showed similar trends between FT3 levels and PhenoAgeAccel in both age subgroups. The ROC curves including FT3 indicated that both models had fair prediction performance (age >  = 60 years, AUC = 0.722 (0.700-0.743); age < 60 years, AUC = 0.765 (0.751- 0.780)).

conclusionThis study revealed a novel age-dependent association between FT3 levels and biological aging acceleration, with lower FT3 potentially serving as a biomarker for accelerated aging in elderly individuals, while an inverse relationship was observed in younger adults. The study provides novel insights into the intricate relationship between thyroid function and systemic health across the lifespan.

Indexed as

AgingTriiodothyronineAdultAgedAge FactorsFemaleHumansMaleMiddle AgedNutrition SurveysTriiodothyronineAging accelerationFree triiodothyroninePhenotypic ageThyroid hormone

Identifiers

PMID40332749

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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.