Having Alzheimer's genes increase your risk of epilepsy

Written By : Isra Zaman

Medically Reviewed By : Dr. Kamal Kant Kohli

Published On 2023-05-26 04:15 GMT | Update On 2023-05-26 09:34 GMT

People with a genetic predisposition for Alzheimer's disease may have an increased risk of epilepsy and people with a certain type of epilepsy may have an increased risk of developing Alzheimer’s disease, according to a study published in the online issue of Neurology.

For the study, researchers looked at gene variation throughout the human genomes of 111,326 people with Alzheimer’s disease, and 677,663 people without the disease through what’s known as a genome-wide association study. Researchers used a study design called Mendelian randomization to determine if there was cause and effect between the genetic variations and the risk of epilepsy.

Researchers found having Alzheimer’s was linked to a 5.3% increased risk of generalized epilepsy, which involves seizures that occur from both halves of the brain. Researchers also found a 1.3% increased risk of focal epilepsy with hippocampal sclerosis. Focal epilepsy involves recurring seizures that affect one half of the brain.

Researchers then looked at the genes of 15,212 people with epilepsy, matched to the genes of 29,677 people without epilepsy. People who had focal epilepsy with hippocampal sclerosis had nearly four times the risk of developing Alzheimer’s disease compared to people without epilepsy.

Researchers also analyzed the genes of 13,116 people who had data on the levels of a biomarker for Alzheimer’s disease called amyloid in their cerebrospinal fluid. Lower amounts of the biomarker indicate an increased deposition of amyloid plaques in the brain.

Reference:

AMERICAN ACADEMY OF NEUROLOGY, JOURNAL Neurology

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Article Source : AMERICAN ACADEMY OF NEUROLOGY

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Isra Zaman

Isra Zaman is a Life Science graduate from Daulat Ram College, Delhi University, and a postgraduate in Biotechnology from Amity University. She has a flair for writing, and her roles at Medicaldialogues include that of a Sr. content writer and a medical correspondent. Her news pieces cover recent discoveries and updates from the health and medicine sector. She can be reached at editorial@medicaldialogues.in.

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Having Alzheimer's genes increase your risk of epilepsy

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