Abstract:
BACKGROUND:Association between kidney dysfunction and dementia has been studied in western cohorts, but with inconsistent conclusions which may be due to the different measurements of kidney function. We aim to verify the hypothesis that lower levels of kidney function would be associated with increased risk of incident dementia in Chinese elderly. METHODS:One thousand four hundred twelve dementia-free participants aged 60 years or older from the Shanghai Aging Study were enrolled and followed up for 5.3 years on average. Glomerular filtration rate (GFR) was calculated by using combined creatinine-cystatin C CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) equation. Diagnoses of incident dementia and Alzheimer's disease (AD) were established using DSM-IV and NINCDS-ADRDA criteria based on medical, neurological, and neuropsychological examinations to each participant. Cox proportional regression was used to analyze the association of baseline GFRcrcys levels with incident dementia/AD, adjusting age, gender, education years, APOE-ε4, diabetes, hypertension, baseline Mini-Mental State Examination score, and proteinuria. RESULTS:A total of 113 (8%) and 84 (7%) participants developed dementia and AD. Comparing to participants with high GFRcrcys (≥ 80 ml/min/1.73 m2), participants with low (< 67 ml/min/1.73 m2) and moderate GFRcrcys (67 ≤ GFR < 80 ml/min/1.73 m2) had increased risk of incident dementia with hazard ratios (HRs) of 1.87 (95% CI 1.02-3.44) and 2.19 (95% CI 1.21-3.95) after adjustment for confounders, respectively. Low (HR = 2.27 [95%CI 1.10-4.68]) and moderate (HR = 2.14 [95% CI 1.04-4.40]) GFRcrcys at baseline was also independently associated with incident AD after adjustments when comparing to high GFRcrcys. The significant association between GFRcrcys and dementia risk was observed in female but not in male participants. CONCLUSIONS:GFRcrcys may be considered as a marker of an individual's vulnerability to the increased risk of cognitive decline.
journal_name
Alzheimers Res Therjournal_title
Alzheimer's research & therapyauthors
Wang M,Ding D,Zhao Q,Wu W,Xiao Z,Liang X,Luo J,Chen Jdoi
10.1186/s13195-020-00729-9subject
Has Abstractpub_date
2021-01-11 00:00:00pages
21issue
1issn
1758-9193pii
10.1186/s13195-020-00729-9journal_volume
13pub_type
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pub_type: 杂志文章,评审
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更新日期:2017-05-04 00:00:00
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