Original ResearchPublished 6 October 2026Reduced serum LEFTY2 and disease-dependent biomarker associations in Alzheimer’s disease: an exploratory studyWei Wuli · Raymond Y. Lo · Horng-Jyh Harn · Tzyy-Wen Chiou · Yue-Xuan Xu · Yuncin Luo · Ivan Wijaya · Shinn-Zong LinFrontiers in Aging Neurosciencedoi 10.3389/fnagi.2026.1955495