Association between Life's Simple 7 and cerebrospinal fluid biomarkers of Alzheimer's disease pathology in cognitively intact adults: the CABLE study

Introduction This study sought to explore the association between Life's Simple 7 (LS7) and cerebrospinal fluid (CSF) Alzheimer's disease (AD) pathological biomarkers in the cognitively normal northern Chinese population. Methods From the Chinese Alzheimer's Biomarker and LifestylE (CABLE) study, 1106 cognitively normal participants were enrolled. The mean age was 62.34 years, and 39.6% were female. LS7 scores were summed with each metric assigned 0, 1, or 2 scores. The multiple linear regression models were used to investigate the association between LS7 scores and CSF AD biomarkers. Results We found that LS7 scores were significantly associated with CSF AD pathologies, including A beta 42/40 (beta = 0.034, P = .041), p-tau181 (beta = - 0.043, P = .006), and t-tau (beta = - 0.044, P = .003). In subscales, the biological metrics (blood pressure, cholesterol, glucose) were significantly related to CSF tau-related biomarkers. These associations were observed in the APOE epsilon 4 allele non-carriers, yet not in carriers. The relationship of behavior metrics was found in the middle age and males. Conclusion Improving LS7 scores might do a favor to alleviate the pathology of AD in the preclinical stage, especially among the APOE epsilon 4 allele non-carriers.