According to a new meta-analysis, gene variants associated with a person’s blood type may be linked to their risk of early stroke.

“Non-O blood types have previously been linked to a risk of early stroke, but the findings of our meta-analysis showed a stronger link between these blood types with early stroke compared to late stroke, and in linking risk mostly to blood type A,” said study author Braxton D. Mitchell, PhD, MPH, of University of Maryland School of Medicine in Baltimore. “Specifically, our meta-analysis suggests that gene variants tied to blood types A and O represent nearly all of those genetically linked with early stroke. People with these gene variants may be more likely to develop blood clots, which can lead to stroke.”

48 studies on genetics and ischemic stroke from North America, Europe, and Asia were reviewed in the meta-analysis. 16,927 people with stroke and 576,353 people who did not have a stroke were included in the studies. Of those with stroke, 5,825 people had early onset stroke and 9,269 people had late onset stroke. Early onset stroke was defined as an ischemic stroke occurring before age 60 and late-onset stroke was older than 60 years old.

Using gene modification techniques, a team of researchers have come up with a new treatment for balding, Wired reports — a condition experienced to varying degrees by two-thirds of American men by age 35.

The team, associated with the University of California, Irvine and a biotech company called Amplifica, believes they’ve identified the signaling pathway that drive hair growth to find new ways to stop stem cells from giving up on producing hair follicles.

Experiments with mice, as detailed in a new paper published in the journal Developmental Cell last month, have been promising. The mice were genetically modified to have the hair growth signaling pathway turned on permanently.

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Researchers have solved the century-old mystery of a supergene that causes efficient cross-pollination in flowers. The results reveal that sequence length variation at the DNA

DNA, or deoxyribonucleic acid, is a molecule composed of two long strands of nucleotides that coil around each other to form a double helix. It is the hereditary material in humans and almost all other organisms that carries genetic instructions for development, functioning, growth, and reproduction. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

A fundamental discovery concerning a driver of healthy development in embryos might rewrite our understanding of what we can inherit from our parents and how their life experiences shape us. The new study reveals that epigenetic information, which sits on top of DNA

DNA, or deoxyribonucleic acid, is a molecule composed of two long strands of nucleotides that coil around each other to form a double helix. It is the hereditary material in humans and almost all other organisms that carries genetic instructions for development, functioning, growth, and reproduction. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).