EARLY CONSIDERATIONS OF GENETICS IN APHASIA REHABILITATION: A NARRATIVE REVIEW

Overview

Journal Aphasiology

Date 2023 Jun 22

PMID 37346093

Authors

Stacy M Harnish

Victoria A Diedrichs

Christopher W Bartlett

Affiliations

Soon will be listed here.

Abstract

Background: Early investigations linking language and genetics were focused on the evolution of human communication in populations with developmental speech and language disorders. Recently, studies suggest that genes may also modulate recovery from post-stroke aphasia.

Aims: Our goal is to review current literature related to the influence of genetics on post-stroke recovery, and the implications for aphasia rehabilitation. We describe candidate genes implicated by empirical findings and address additional clinical considerations.

Main Contribution: We describe existing evidence and mechanisms supporting future investigations into how genetic factors may modulate aphasia recovery and propose that two candidate genes, brain derived neurotrophic factor () and apolipoprotein E (), may be important considerations for future research assessing response to aphasia treatment. Evidence suggests that is important for learning, memory, and neuroplasticity. influences cognitive functioning and memory in older individuals and has also been implicated in neural repair. Moreover, recent data suggest an interaction between specific alleles of the and genes in influencing episodic memory.

Conclusions: Genetic influences on recovery from aphasia have been largely unexplored in the literature despite evidence that genetic factors influence behaviour and recovery from brain injury. As researchers continue to explore prognostic factors that may influence response to aphasia treatment, it is time for genetic factors to be considered as a source of variability. As the field moves in the direction of personalized medicine, eventually allied health professionals may utilize genetic profiles to inform treatment decisions and education for patients and care partners.

Citing Articles

Insights gained over 60 years on factors shaping post-stroke aphasia recovery: A commentary on Vignolo (1964).

Varkanitsa M, Kiran S Cortex. 2023; 170:90-100.

PMID: 38123405 PMC: 10962385. DOI: 10.1016/j.cortex.2023.12.002.

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