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Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies

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Published on: January 28, 2014

Biomarkers.

Jesús Garcia Castro¹

¹Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - Biomedical Research Institute Sant Pau - Universitat Autònoma de Barcelona, Barcelona, Barcelona, Spain.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association

|December 26, 2025

Summary

This summary is machine-generated.

Females with genetic frontotemporal dementia (FTD) show greater cognitive reserve than males, despite similar clinical outcomes. This suggests biological sex influences resilience to neurodegeneration, with females exhibiting enhanced protective mechanisms.

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Area of Science:

Neuroscience
Genetics
Neurology

Background:

Biological sex influences neurodegeneration susceptibility.
The role of sex in genetic frontotemporal dementia (FTD) is not well understood.

Purpose of the Study:

To investigate sex differences in cognitive reserve and neurodegeneration in genetic FTD.
To explore how biological sex impacts resilience to FTD.

Main Methods:

Examined 394 genetic FTD patients and 279 controls.
Assessed annual neuropsychological performance and MRI-derived cortical thickness.
Analyzed sex differences in cognitive reserve using linear mixed-effects models.

Main Results:

No significant differences in clinical or demographic variables between sexes.
Females showed lower frontal cortical thickness than males.
Females demonstrated greater cognitive reserve, particularly near symptom onset.

Conclusions:

Biological sex significantly influences resilience to frontotemporal neurodegeneration.
Females with genetic FTD exhibit greater cognitive reserve compared to males.
Sex-based differences in resilience are evident in genetic FTD.