List/Grid

Genetics Subscribe to Genetics

Genetically driven gut feelings help female flies choose a mate

Genetically driven gut feelings help female flies choose a mate

Even among flies, mating is a complicated ritual. Their elaborate, and entirely innate, courtship dance combines multiple motor skills with advanced sensory cues. Now, researchers at Rockefeller University have determined that the Abdominal-B ( Abd-B ) gene, previously known as the gene that sculpts the posterior parts of the developing fly, is also important for this complex behavior, at least in the case of female flies ( Drosophila melanogaster) Continue reading

Gene responsible for traits involved in diabetes discovered

Gene responsible for traits involved in diabetes discovered

A collaborative research team led by Medical College of Wisconsin (MCW) scientists has identified a new gene associated with fasting glucose and insulin levels in rats, mice and in humans. The findings are published in the September issue of Genetics Continue reading

Sensing neuronal activity with light

Sensing neuronal activity with light

For years, neuroscientists have been trying to develop tools that would allow them to clearly view the brain’s circuitry in action — from the first moment a neuron fires to the resulting behavior in a whole organism. To get this complete picture, neuroscientists are working to develop a range of new tools to study the brain. Continue reading

How epigenetic memory is passed through generations: Sperm and eggs transmit memory of gene repression to embryos

How epigenetic memory is passed through generations: Sperm and eggs transmit memory of gene repression to embryos

A growing body of evidence suggests that environmental stresses can cause changes in gene expression that are transmitted from parents to their offspring, making “epigenetics” a hot topic. Epigenetic modifications do not affect the DNA sequence of genes, but change how the DNA is packaged and how genes are expressed. Continue reading

Melanoma risk found to have genetic determinant

Melanoma risk found to have genetic determinant

A leading Dartmouth researcher, working with The Melanoma Genetics Consortium, GenoMEL, an international research consortium, co-authored a paper published in the Journal of the National Cancer Institute that proves longer telomeres increase the risk of melanoma. “For the first time, we have established that the genes controlling the length of these telomeres play a part in the risk of developing melanoma,” said lead author of the study Mark Iles, PhD, School of Medicine at the University of Leeds (UK). Telomeres are a part of the genome that function like the plastic caps of your shoelaces, which prevent the laces from fraying Continue reading

Identifying teen alcohol and drug abuse

Identifying teen alcohol and drug abuse

The number of teens who abuse tobacco, alcohol, drugs and other substances hasn’t changed much in the past couple of decades — but for those who are prone to addiction for one reason or another, the menu of substances to choose from is larger than ever. Continue reading

Identifying teen alcohol and drug abuse

Identifying teen alcohol and drug abuse

The number of teens who abuse tobacco, alcohol, drugs and other substances hasn’t changed much in the past couple of decades — but for those who are prone to addiction for one reason or another, the menu of substances to choose from is larger than ever. Continue reading

Researcher develops, proves effectiveness of new drug for spinal muscular atrophy

Researcher develops, proves effectiveness of new drug for spinal muscular atrophy

According to recent studies, approximately one out of every 40 individuals in the United States is a carrier of the gene responsible for spinal muscular atrophy (SMA), a neurodegenerative disease that causes muscles to weaken over time. Continue reading

Researcher develops, proves effectiveness of new drug for spinal muscular atrophy

Researcher develops, proves effectiveness of new drug for spinal muscular atrophy

According to recent studies, approximately one out of every 40 individuals in the United States is a carrier of the gene responsible for spinal muscular atrophy (SMA), a neurodegenerative disease that causes muscles to weaken over time. Now, researchers at the University of Missouri have made a recent breakthrough with the development of a new compound found to be highly effective in animal models of the disease Continue reading

Certain form of baldness at age 45 linked to higher risk for aggressive prostate cancer

Certain form of baldness at age 45 linked to higher risk for aggressive prostate cancer

A new, large cohort analysis from the prospective Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial, indicates that men who had moderate baldness affecting both the front and the crown of their head at age 45 were at a 40% increased risk of developing aggressive prostate cancer (usually indicates a faster growing tumor resulting in poorer prognosis relative to non-aggressive prostate cancer) later in life, compared to men with no baldness. Continue reading