The impact of kidney function on plasma neurofilament light and phospho-tau 181 in a community-based cohort: the Shanghai Aging Study.
Alzheimers Res Ther
; 16(1): 32, 2024 02 12.
Article
in En
| MEDLINE
| ID: mdl-38347655
ABSTRACT
BACKGROUND:
The blood-based biomarkers are approaching the clinical practice of Alzheimer's disease (AD). Chronic kidney disease (CKD) has a potential confounding effect on peripheral protein levels. It is essential to characterize the impact of renal function on AD markers.METHODS:
Plasma phospho-tau181 (P-tau181), and neurofilament light (NfL) were assayed via the Simoa HD-X platform in 1189 dementia-free participants from the Shanghai Aging Study (SAS). The estimated glomerular filter rate (eGFR) was calculated. The association between renal function and blood NfL, P-tau181 was analyzed. An analysis of interactions between various demographic and comorbid factors and eGFR was conducted.RESULTS:
The eGFR levels were negatively associated with plasma concentrations of NfL and P-tau181 (B = - 0.19, 95% CI - 0.224 to - 0.156, P < 0.001; B = - 0.009, 95% CI - 0.013 to -0.005, P < 0.001, respectively). After adjusting for demographic characteristics and comorbid diseases, eGFR remained significantly correlated with plasma NfL (B = - 0.010, 95% CI - 0.133 to - 0.068, P < 0.001), but not with P-tau181 (B = - 0.003, 95% CI - 0.007 to 0.001, P = 0.194). A significant interaction between age and eGFR was found for plasma NfL (Pinteraction < 0.001). In participants ≥ 70 years and with eGFR < 60 ml/min/1.73 m2, the correlation between eGFR and plasma NfL was significantly remarkable (B = - 0.790, 95% CI - 1.026 to - 0,554, P < 0.001).CONCLUSIONS:
Considering renal function and age is crucial when interpreting AD biomarkers in the general aging population.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ascorbic Acid
/
Intermediate Filaments
/
Alzheimer Disease
Type of study:
Etiology_studies
/
Risk_factors_studies
Limits:
Aged
/
Humans
Country/Region as subject:
Asia
Language:
En
Journal:
Alzheimers Res Ther
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
United kingdom