genetic

Largest-ever analysis reveals genetic links to smoking and alcohol

Largest-ever analysis reveals genetic links to smoking and alcohol

Smoking and alcohol consumption are both influenced by genetics as well as environmental factors.Credit: Bunyos/iStock/Getty More than 3,500 genetic variations that may affect smoking and drinking behavior have been identified in a study of nearly 3.4 million people of African, American, Asian and European descent. The findings, published in Nature December 71highlight how increasing sample …

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Oldest DNA sheds light on 2 million year old ecosystem that has no modern equivalent |  CNN

Oldest DNA sheds light on 2 million year old ecosystem that has no modern equivalent | CNN

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. CNN — An Ice Age sediment core from northern Greenland has produced the oldest DNA sequences in the world. The 2 million year old DNA samples revealed that the now largely lifeless polar region was …

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Promising trial targets genetic risk for Alzheimer's disease

Promising trial targets genetic risk for Alzheimer’s disease

In a bold attempt to halt the progression of some cases of Alzheimer’s disease, a group of researchers are trying something new: injecting a protective gene into patients’ brains. The trial only involved five patients with a particular genetic risk for Alzheimer’s disease. They received a very low dose of gene therapy – a safety …

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Rare genetic phenomenon linked to neuronal function and schizophrenia – Neuroscience News

Summary: People with schizophrenia have significantly higher rates of tandem repeats in their genome, up to 7% more than people without a mental health disorder. The genes were mainly found in genes crucial for brain function. Source: A C In our cells, the language of DNA is written, making each of us unique. A tandem …

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