Photoacoustic viscoelasticity assessment of prefrontal cortex and cerebellum in normal and prenatal valproic acid-exposed rats

Autor: Zahra Hosseindokht, Shima Davoudi, Mona Rahdar, Mahyar Janahmadi, Mohammadreza Kolahdouz, Pezhman Sasanpour
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Photoacoustics, Vol 36, Iss , Pp 100590- (2024)
Druh dokumentu: article
ISSN: 2213-5979
DOI: 10.1016/j.pacs.2024.100590
Popis: Mechanical properties of brain tissues are from principal features from different points of view; diagnosis, the performance of the brain and neurological disorders. Particularly viscoelastic properties of the brain tissues are determinative. In this study based on a proposed accurate and non-invasive method, we have measured the viscoelastic properties of prefrontal cortex and cerebellum, two important brain regions involved in motor learning and pathophysiology of autism spectrum disorder (ASD). In this regard, using photoacoustic systems, viscoelastic properties of tissues from the cerebellum and prefrontal cortex of normal and prenatal VPA (Valproic acid)-exposed (i.e. autistic-like) offspring rats are measured. Results of our study show that the cerebellums of normal tissues are stiffer than the tissue obtained from autistic-like rats, while the viscoelasticity of the prefrontal cortex of normal tissues is higher than that of autistic ones. The proposed method for the measurement of viscoelastic properties of the brain tissue has the potential not only for the fundamental studies but as a diagnosis technique.
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