时间标签:数据日期 2026-10-28 · 生成时间 2026-10-31 05:30(Asia/Shanghai)| 档位:观察哨42 | 窗口 T-3 | 上游评级 C
这项研究想回答什么
撒哈拉以南非洲老年人群中,神经精神症状与哪些血浆蛋白相关?
方法与数据
横断面设计,NPI 与 GDS 评估症状,NULISAseq CNS Disease Panel 120 定量血浆蛋白,多变量回归校正年龄、性别、教育程度与 eGFR 并作 FDR 校正,探索性因子分析提取潜维度。
核心结论
以下所有数字均可在官方 abstract 原文(见第 7 节)中逐字核对;上游未给出的定量一律写「未给出」,不估算、不换算。
- 一句话贡献:EVCD-RDC 队列全队列 1044 人、其中 779 人有蛋白组数据;NEFL 升高与 NPI 症状负担相关(Beta=0.349,95% CI 0.201–0.497,FDR<0.001,N=674),APOE 蛋白升高与夜间行为相关(OR=2.11,95% CI 1.42–3.11,FDR=0.025)。
局限与未核验项
横断面无随访、因果方向不明;多数关联未通过 FDR 校正(维度层面仅 NEFL 存活,Beta=0.222,95% CI 0.127–0.318,N=644);单中心撒哈拉以南非洲人群,泛化性待验。
补全文时优先核:120 蛋白面板的检测下限与变异系数、未通过 FDR 的关联清单、eGFR 校正对结果的贡献。
⚠️ 本页为摘要级解读:未取得 PDF 全文,上述所有结论均未核至 Results/Methods;效应量、样本量、统计方法与多重比较校正在多数条目中仍未知。
对本领域的价值
人群稀缺的非洲认知老化血液蛋白数据,对痴呆生物标志物的跨人群可比性有价值;与衰老关联中等,值得跟进。
编辑研判
人群稀缺性就是它的价值:金沙萨 EVCD-RDC 队列(全队列 1044 人、779 人有蛋白组)给出了非洲认知老化的血液蛋白数据,对生物标志物的跨人群可比性有直接意义。可引用的数字:NEFL 升高与 NPI 症状负担相关(Beta=0.349,95% CI 0.201–0.497,FDR<0.001,N=674),APOE 蛋白升高与夜间行为相关(OR=2.11,1.42–3.11,FDR=0.025)。限制要写清:横断面无随访、因果方向不明,且多数关联未通过 FDR 校正(维度层面仅 NEFL 存活),单中心人群泛化性待验。
官方摘要原文(逐字,供回溯)
展开 api.biorxiv.org / api.medrxiv.org 返回的 abstract 原文
Background: Neuropsychiatric symptoms (NPS) are common across cognitive ageing and dementia, but their molecular correlates are poorly understood in sub Saharan African populations. We examined associations between individual NPS, empirically derived NPS dimensions, and plasma proteomic profiles in older adults in Kinshasa, Democratic Republic of the Congo. Methods: In this cross sectional analysis of the EVCD RDC cohort, NPS were assessed using the Neuropsychiatric Inventory (NPI) and Geriatric Depression Scale (GDS). Plasma proteins were quantified using the NULISAseq CNS Disease Panel 120. Of 1044 participants in the full cohort, 779 had available proteomic data. Multivariable regression models adjusted for age, sex, education, and estimated glomerular filtration rate, with false discovery rate (FDR) correction. Exploratory factor analysis identified latent NPS dimensions. Findings: The full cohort included 1044 participants, of whom 779 comprised the proteomics cohort. Higher NEFL was associated with greater NPI symptom burden (Beta=0.349, 95% CI 0.201 to 0.497; FDR<0.001; N=674). Higher IL6 (Beta=0.805, 0.362 to 1.248) and CCL13 (Beta=0.434, 0.191 to 0.678) were associated with higher GDS scores (both FDR=0.032; N=693). Higher APOE protein was associated with nighttime behaviour (OR 2.11, 95% CI 1.42 to 3.11; FDR=0.025). Three NPS dimensions were identified. NEFL was the only factor level association surviving FDR correction (behavioural/motor: Beta=0.222, 95% CI 0.127 to 0.318; FDR<0.001; N=644). Interpretation: NPS showed heterogeneous plasma protein correlates, with the most robust findings implicating neuroaxonal injury and inflammatory signalling. Longitudinal replication in African cohorts is needed.
本文为预印本,未经同行评审,结论可能在正式发表时变更。生成任务 12819187(预印本全文级解读)· 上游 12784209(预印本速递)。
C 级证据分级:C 级(预印本,未经同行评审;本页为摘要级,未核至全文)
本文为预印本,未经同行评审;且本页为「摘要级」——未取得 PDF 全文(源站封锁),全部结论只依据官方 API 摘要原文。效应量、样本量、统计方法与多重比较校正在多数条目中仍未知,摘要未给出之处一律写「未给出」/「待补全文」,未做任何数值推算补全。
关于本文的文献来源:本站依据元层《预印本全文级解读_2026-10-31》(上游《预印本速递_2026-10-31》)撰写,附官方 abstract 原文供逐字回溯。