Genetics

Owning a dog is influenced by genetic make-up

A team of Swedish and British scientists have studied the heritability of dog ownership using information from 35,035 twin pairs from the Swedish Twin Registry. The new study suggests that genetic variation explains more ...

Genetics

Genes, yes, but obesity pandemic mostly down to diet: study

A three-fold jump since 1975 in the percentage of adults worldwide who are obese has been driven mainly by a shift in diet and lack of exercise, but genes do play a role as well, according a large-scale study published Thursday.

Neuroscience

High LDL linked to early-onset Alzheimer's

Researchers with the Atlanta Veterans Affairs Medical Center and Emory University have found a link between high LDL cholesterol levels and early-onset Alzheimer's disease. The results could help doctors understand how the ...

Cardiology

Raising 'good' cholesterol fails to protect against heart disease

Raising so-called 'good' cholesterol by blocking a key protein involved in its metabolism does not protect against heart disease or stroke, according to a large genetic study of 150,000 Chinese adults published in the journal ...

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Genetic variation

Genetic variation, variation in alleles of genes, occurs both within and among populations. Genetic variation is important because it provides the “raw material” for natural selection.

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