TNF and Alzheimer disease: Our study aims to provide preliminary RV for plasma protein biomarkers including Aβ42/40 ratio, p-tau181, p-tau217, Nfl, GFAP, IL-1B, IL-10, and TNFα in a sample of adults in the Democratic Republic of Congo with and without dementia to aid in screening, future diagnostic utility, prognostication, and management of AD in the DRC.