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Gene Loss 2 Million Years Ago May Explain Why Humans Are Prone to Heart Attacks
Researchers say the loss of a single gene two to three million years ago in our ancestors may have resulted in a heightened risk of cardiovascular disease in all humans as a species, while also setting up a further risk for red meat-eating humans.
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Cellular “Garbage” No More — Exosomes Show Potential in Treating and Diagnosing Brain Disorders
Once simply thought to be microscopic sacks of cellular “garbage”, exosomes are now understood to hold immense importance for our health. In a new study, researchers show that exosomes are not only integral to the development of neurons and neural circuits, but they can restore health to brain cells affected by developmental disease.
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Parasitic Plants Steal Genes to Make Them Better Parasites
A new study reveals that the parasitic plant dodder has stolen a large amount of genetic material from its hosts, including over 100 functional genes.
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Gene Test Identifies Prostate Cancer Patients Most Likely to Respond to New Treatment
Testing for genetic weaknesses in repairing DNA could identify men most likely to benefit from a new type of targeted nuclear medicine, a new study reports.
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“Bloated” Cancer Cells May Have an Achilles' Heel
In a study using yeast cells and data from cancer cell lines, scientists report they have found a potential weak spot among cancer cells that have extra sets of chromosomes. The vulnerability is rooted in their high intracellular protein concentrations – that make them appear bloated.
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Mouse Hallucinations Represent Optogenetic Advance
Hallucinations are spooky and, fortunately, fairly rare. But, a new study suggests, the real question isn't so much why some people occasionally experience them. It's why all of us aren't hallucinating all the time.
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Sex Affects Gene Expression in Mammals
Men are from Mars and women are from Venus, so the saying goes. The differences between the sexes have been explored across a variety of disciplines over many years: philosophy, literature and, of course, science. From a biological perspective, however, the effect that sex has on gene expression, particularly in autosomal (sex-linked) genes, has been a relatively unmapped area – until now.
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Out of Africa and Into an Archaic Human Mixing Pot
Genetic analysis has revealed that the ancestors of modern humans interbred with at least five different archaic human groups as they moved out of Africa and across Eurasia. Researchers have mapped the location of past “mixing events” (analyzed from existing scientific literature) by contrasting the levels of archaic ancestry in the genomes of present-day populations around the world.
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The Potential and Uncertainties of Genetic Rescue
Researchers have attempted or explored the possibility of genetic rescue in several species. Now, a new paper examines the potential and uncertainties of attempting genetic rescue
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Thieving Red Algae Steal Genes From Bacteria to Cope With Environmental Stresses
Ten species of red algae stole about 1 percent of their genes from bacteria to cope with toxic metals and salt stress in hot springs, according to a study.
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