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Only 1–2% of Alzheimer's cases are inherited due to autosomal dominant effects, as Alzheimer's is highly polygenic. When the disease is caused by autosomal dominant variants, it is known as early onset familial Alzheimer's disease, which is rarer and has a faster rate of progression. [17]
Mitochondrial DNA (mtDNA) is not transmitted through nuclear DNA (nDNA). In humans, as in most multicellular organisms, mitochondrial DNA is inherited only from the mother's ovum. There are theories, however, that paternal mtDNA transmission in humans can occur under certain circumstances. [3]
It is an uncommon form of Alzheimer's, accounting for only 5–10% of all Alzheimer's cases. About 60% have a positive family history of Alzheimer's and 13% of them are inherited in an autosomal dominant manner. Most cases of early-onset Alzheimer's share the same traits as the "late-onset" form and are not caused by known genetic mutations.
Researchers say a subtype of gene known as APOE may be a factor in the inherited form of Alzheimer's and that this kind of the disease may be more common than previously thought
Key risk factors for later-life dementia and Alzheimer’s disease are well-known: older age and biological sex at birth (women are more likely to get Alzheimer’s). Genetics also determine risk ...
However, because the only difference between the family members who developed Alzheimer's disease and those that did not in these families was the inheritance of the mutation in the amyloid gene, this suggested that the amyloid protein itself could cause the disease. The idea that amyloid could cause the disease influenced scientific research ...
New research uncovers a genetic link between coronary artery disease and the development of Alzheimer's, ... heart — specifically the genetics that may link coronary artery disease and Alzheimer ...
In human genetics, the Mitochondrial Eve (more technically known as the Mitochondrial-Most Recent Common Ancestor, shortened to mt-Eve or mt-MRCA) is the matrilineal most recent common ancestor (MRCA) of all living humans. In other words, she is defined as the most recent woman from whom all living humans descend in an unbroken line purely ...
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