Frontiers in medicine · 2026
Combined machine learning identification and experimental validation of NDUFS8 and SUCLG1 as potential biomarkers for mechanical asphyxia.
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Jiang Hanfeng, Shi Yi, Liao Xinbiao, Zhang Dongchuan, Li Wencan, Tian Lu, Xiao Bi, Shao Yu, Wu Tianpu, Chen Yue, Zhang Weigang, Ma Kaijun, Xu Hongmei, Chen Long
Аннотация
INTRODUCTION: Mechanical asphyxia (MA) is a major form of violent death caused by external forces that impair respiration and gas exchange. Despite its frequency in forensic casework, its diagnosis remains challenging because autopsy findings are often non-specific.
METHODS: In this exploratory study, we combined data-independent acquisition (DIA) proteomics with machine-learning methods to identify candidate myocardial markers of MA. A discovery cohort of human left ventricular myocardium was profiled to identify nominally differentially abundant proteins. The leading candidates were confirmed by Western blot and immunohistochemistry and further supported by animal models.
RESULTS: Two proteins central to mitochondrial energy metabolism, NDUFS8 and SUCLG1, emerged as candidate markers, and both were consistently downregulated in the MA group relative to controls.
DISCUSSION: These changes point to perturbed mitochondrial bioenergetics and oxidative-stress regulation as features of MA-associated myocardial injury. NDUFS8 and SUCLG1 may thus serve as candidate ancillary markers for mechanical asphyxia.
METHODS: In this exploratory study, we combined data-independent acquisition (DIA) proteomics with machine-learning methods to identify candidate myocardial markers of MA. A discovery cohort of human left ventricular myocardium was profiled to identify nominally differentially abundant proteins. The leading candidates were confirmed by Western blot and immunohistochemistry and further supported by animal models.
RESULTS: Two proteins central to mitochondrial energy metabolism, NDUFS8 and SUCLG1, emerged as candidate markers, and both were consistently downregulated in the MA group relative to controls.
DISCUSSION: These changes point to perturbed mitochondrial bioenergetics and oxidative-stress regulation as features of MA-associated myocardial injury. NDUFS8 and SUCLG1 may thus serve as candidate ancillary markers for mechanical asphyxia.