Alzheimer’s disease associated presenilin 1 and 2 genes dysregulation in neonatal lymphocytes following perinatal asphyxia

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Abstract

Perinatal asphyxia is mainly a brain disease leading to the development of neurodegenera-tion, in which a number of peripheral lesions have been identified; however, little is known about the expression of key genes involved in amyloid production by peripheral cells, such as lymphocytes, during the development of hypoxic-ischemic encephalopathy. We analyzed the gene expression of the amyloid protein precursor, β-secretase, presenilin 1 and 2 and hypoxia-inducible factor 1-α by RT-PCR in the lymphocytes of post-asphyxia and control neonates. In all examined periods after asphyxia, decreased expression of the genes of the amyloid protein precursor, β-secretase and hypoxia-inducible factor 1-α was noted in lymphocytes. Conversely, expression of presenilin 1 and 2 genes decreased on days 1–7 and 8–14 but increased after survival for more than 15 days. We believe that the expression of presenilin genes in lymphocytes could be a potential biomarker to determine the severity of the post-asphyxia neurodegeneration or to identify the underlying factors for brain neurodegeneration and get information about the time they occurred. This appears to be the first worldwide data on the role of the presenilin 1 and 2 genes associated with Alzheimer’s disease in the dysregulation of neonatal lymphocytes after perinatal asphyxia.

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Tarkowska, A., Furmaga-Jabłońska, W., Bogucki, J., Kocki, J., & Pluta, R. (2021). Alzheimer’s disease associated presenilin 1 and 2 genes dysregulation in neonatal lymphocytes following perinatal asphyxia. International Journal of Molecular Sciences, 22(10). https://doi.org/10.3390/ijms22105140

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