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ORIGINAL RESEARCH article

Front. Neurol.

Sec. Neuromuscular Disorders and Peripheral Neuropathies

Volume 16 - 2025 | doi: 10.3389/fneur.2025.1599600

This article is part of the Research TopicNeuromuscular disorders: biomarkers, precision diagnosis, and targeted therapeuticsView all 3 articles

Phenotypic aging mediates the association between Neutrophil Percentage-to-Albumin Ratio (NPAR) and Muscular Dystrophies (MD): a population-based study

Provisionally accepted
Hongyang  GongHongyang Gong1*Jiajun  WangJiajun Wang2Xiaomei  LinXiaomei Lin2Shaoqun  HuangShaoqun Huang2*
  • 1Chosun University, Gwangju, Republic of Korea
  • 2Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China

The final, formatted version of the article will be published soon.

Background: Current research on Muscular Dystrophies (MD) suggests that its occurrence is closely related to several mechanisms, including gene mutations, dystrophin deficiency, and alterations in the Akt/mTOR/p70S6K signaling pathway. The development of MD is influenced by factors such as genetics, inflammation, age, and underlying conditions. However, few studies have explored the association between the Neutrophil Percentage-to-Albumin Ratio (NPAR), phenotypic age, and MD. This study investigates the relationship between NPAR and MD and evaluates whether phenotypic age influences this association. Methods: Subgroup analysis, restricted cubic splines (RCS), and multivariable logistic regression were employed to explore the relationship between NPAR and MD. Additionally, mediation analysis was conducted to investigate the potential role of phenotypic age in the relationship between NPAR and MD. Results: A total of 3,416 participants were included in this study, among whom 268 cases of MD were reported (6%, weighted). After adjusting for all variables using multivariable logistic regression, each unit increase in NPAR and phenotypic age was associated with a 29% (OR=1.29, 95% CI: 1.19-1.39) and 7% (OR=1.07, 95% CI: 1.03-1.12) increase in the odds of muscular dystrophies, respectively. Consistent results were obtained when NPAR and phenotypic age were categorized into tertiles, with a P for trend < 0.001. Restricted cubic spline (RCS) analysis indicated a linear positive correlation between NPAR and MD prevalence. Mediation analysis showed that 22.26% of the relationship between NPAR and MD was mediated by phenotypic age (P=0.026). Conclusion: This study found a significant positive correlation between NPAR and MD, with phenotypic age acting as a partial mediator in this relationship. This finding underscores the potential of NPAR as a predictive marker for MD prevalence and highlights the importance of promoting healthy aging to reduce the risk of MD.

Keywords: Muscular Dystrophies, Neutrophil percentage-to-albumin ratio, Phenotypic Age, NHANES, Mediation analysis

Received: 14 Apr 2025; Accepted: 03 Oct 2025.

Copyright: © 2025 Gong, Wang, Lin and Huang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence:
Hongyang Gong, hygong@chosun.ac.kr
Shaoqun Huang, sqhuang@fjtcm.edu.cn

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