脂肪肝病实际上由五种不同的生物学亚型组成

梅奥诊所与弗吉尼亚理工大学的研究人员发现，脂肪肝病并非单一疾病，而是由五种生物学上不同的亚型组成1。这项在《自然通讯》杂志上发表的研究分析了4600多名患者的遗传和临床数据，揭示了该病可通过多条不同的生物途径发展，包括与肥胖和糖尿病相关的形式以及由遗传差异驱动的形式1。

研究发现，不同亚型的患者面临的健康风险各不相同。某些遗传亚型即使在没有代谢风险因素的患者中也更容易进展为严重肝脏损伤1。此外，研究首次识别了特定脂肪肝病亚型与抑郁症、睡眠呼吸暂停和偏头痛之间的关联1。

鉴于全球约30%的成人患有脂肪肝病1，这一发现对个性化治疗策略具有重要意义。研究团队计划进一步评估包括GLP-1受体激动剂在内的现有治疗方法对不同亚型的效果1。

Researchers from Mayo Clinic and Virginia Tech have identified that fatty liver disease consists of five different biological subtypes, each carrying distinct risks for liver failure, cancer, heart disease, and other complications 1. The discovery emerged from an analysis of genetic and clinical data from more than 4,600 patients and was published in Nature Communications 1. The findings demonstrate that fatty liver disease develops through multiple distinct biological pathways, including forms associated with obesity and diabetes as well as variants driven by genetic differences 1.

Approximately 30 percent of adults globally have fatty liver disease 1, underscoring the public health importance of this classification breakthrough. Certain genetic subtypes progress to severe liver damage more rapidly even in patients without metabolic risk factors 1. Additionally, the study identified for the first time specific associations between particular fatty liver disease subtypes and depression, sleep apnea, and migraines 1.

The research team plans to evaluate how available treatment options, including GLP-1 receptor agonists, perform across the different subtypes 1. This targeted approach could enable more personalized therapeutic strategies based on individual disease biology.