ISSN: 2161-0460

Journal de la maladie d'Alzheimer et du parkinsonisme

Accès libre

Notre groupe organise plus de 3 000 séries de conférences Événements chaque année aux États-Unis, en Europe et en Europe. Asie avec le soutien de 1 000 autres Sociétés scientifiques et publie plus de 700 Open Access Revues qui contiennent plus de 50 000 personnalités éminentes, des scientifiques réputés en tant que membres du comité de rédaction.

Les revues en libre accès gagnent plus de lecteurs et de citations
700 revues et 15 000 000 de lecteurs Chaque revue attire plus de 25 000 lecteurs

Indexé dans
  • Index Copernic
  • Google Scholar
  • Sherpa Roméo
  • Ouvrir la porte J
  • JournalSeek de génamique
  • Clés académiques
  • JournalTOC
  • Infrastructure nationale du savoir de Chine (CNKI)
  • Bibliothèque de revues électroniques
  • Recherche de référence
  • Université Hamdard
  • EBSCO AZ
  • OCLC-WorldCat
  • Catalogue en ligne SWB
  • Bibliothèque virtuelle de biologie (vifabio)
  • Publons
  • Fondation genevoise pour l'enseignement et la recherche médicale
  • Euro Pub
  • ICMJE
Partager cette page

Abstrait

Sex Differences in Plasma Biomarkers of Alzheimer?s Disease in a Diverse Community Cohort: A HABS-HD Study

James R. Hall, Melissa Petersen, Sid E. O’Bryant

Background: There has been increased research investigating the utility of plasma biomarkers of Alzheimer’s disease as diagnostic markers, predictors of risk and progression. Although there is extensive evidence pointing to sex differences in epidemiology, vulnerability, pathology and progression of AD there is a dearth of research on the impact of sex differences on Alzheimer’s related plasma biomarkers. There exists limited research on the impact of ethnicity on these biomarkers. Current research investigated sex differences in plasma biomarkers of amyloid (Aβ40, Aβ42), tau (total tau) and neurodegeneration (Neurofilament Light Chain (NFL)) in older Mexican Americans and non-Hispanic Whites.

Method: Sample included 292 male and 561 female Mexican Americans and 354 male and 430 female non- Hispanic Whites from Health and Aging Brain Study-Health Disparities (HABS-HD) study. Plasma samples were assayed using Simoa technology. Sex and ethnic differences for the biomarkers were assessed using ANOVAs co-varying for age.

Results and Discussion: Significant main effects were found for Aβ40 and tau for sex and ethnicity. Males had higher Aβ40 than females while females had higher tau. Non-Hispanic Whites had higher Aβ40 than Mexican Americans and lower total tau. Mexican American females had higher tau and lower NFL than Mexican American males. Non-Hispanic White females had higher tau than non-Hispanic White males who had higher Aβ40. Non- Hispanic White males had higher Aβ40 than Mexican American males who had higher tau and Aβ42/Aβ40 ratio. Non- Hispanic White females had higher Aβ40 than Mexican American females while Mexican American females had higher tau and Aβ42/40 ratio.

Conclusion: Findings reveal sex differences, ethnic differences, sex differences within ethnic groups and ethnic differences within the same sex in concentrations of plasma biomarkers. The use of AD plasma biomarkers as screening tools, diagnostic markers and trial endpoints need to consider sex and ethnic differences.

Avertissement: Ce résumé a été traduit à l'aide d'outils d'intelligence artificielle et n'a pas encore été examiné ni vérifié.