Evidence map›Paper›PMID 40278553›Full record

ArticleToxics2025

Independent and Combined Associations of Urinary Heavy Metal Exposures with Serum α-Klotho in Middle-Aged and Older Adults.

Xinliang Zheng, Wenxin Zhou, Zhuoying Jiang, Chan Ding, Minqian Feng, Yongxin Li, Fitri Kurniasari, Shuanghua Xie, Huadong Xu

Abstract read
In one paragraph

Article in Toxics, 2025. 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. 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

9 authors.

Xinliang ZhengSchool of Public Health, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 182 Tianmushan Road, Xihu District, Hangzhou 310013, China.
Wenxin ZhouSchool of Public Health, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 182 Tianmushan Road, Xihu District, Hangzhou 310013, China.
Zhuoying JiangSchool of Public Health, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 182 Tianmushan Road, Xihu District, Hangzhou 310013, China.
Chan DingSchool of Public Health, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 182 Tianmushan Road, Xihu District, Hangzhou 310013, China.
Minqian FengSchool of Public Health, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 182 Tianmushan Road, Xihu District, Hangzhou 310013, China.
Yongxin LiSchool of Public Health, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 182 Tianmushan Road, Xihu District, Hangzhou 310013, China.ORCID 0000-0002-5801-745X
Fitri KurniasariDepartment of Environmental Health, Faculty of Public Health, University of Indonesia, Depok 16424, West Java, Indonesia.ORCID 0000-0002-1073-2067
Shuanghua XieDepartment of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.
Huadong XuSchool of Public Health, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 182 Tianmushan Road, Xihu District, Hangzhou 310013, China.ORCID 0000-0003-2698-1807

Funding

Innovation and Entrepreneurship Training Program for College Students of Zhejiang Province S202413023126Key Discipline of Zhejiang Province in Public Health and Preventive Medicine First Class, Category ANational Natural Science Foundation of China 82404231
6 · The paper itself

Abstract

α-Klotho is an anti-aging protein linked to various age-related diseases. Environmental metal exposure has been associated with oxidative stress and aging, but its effect on α-Klotho levels remains unclear. This study investigated the relationship between urinary metal concentrations and serum α-Klotho levels using data from the National Health and Nutrition Examination Survey (NHANES) 2007-2016 cycles. A total of 4071 adults aged 40 to 79 years were included in the analysis. After adjusting for potential confounders, positive associations were found between serum α-Klotho levels and barium (Ba), cesium (Cs), and molybdenum (Mo), while tungsten (W) and uranium (U) were negatively correlated with α-Klotho levels. The combined effects of multiple metals were further analyzed using the qgcomp model, which demonstrated a negative correlation between increased metal mixtures and serum α-Klotho levels. Specifically, U, total arsenic (t-As), W, cadmium (Cd), antimony (Sb), and lead (Pb) contributed to the reduction of α-Klotho levels, while Ba, Cs, dimethylarsinic acid (DMA), Mo, thallium (Tl), and cobalt (Co) were positively associated with α-Klotho levels. These findings suggest that exposure to certain metals, particularly in combination, may reduce serum α-Klotho levels, potentially accelerating aging processes. Further studies should investigate the underlying mechanisms responsible for these associations.

Indexed as

aging biomarkersmetal mixturesNHANESurinary metalsα-Klotho

Identifiers

PMID40278553
PMCPMC12031166

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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.