Recent stories on Highlight HEALTH

Channel: Genetics

Even Healthy People Carry Hundreds of Genetic Flaws

by on Wednesday, December 12, 2012

Nobody’s perfect, not even the healthiest among us. Scientists from the Wellcome Trust Sanger Institute and Cardiff University have determined that, on average, a normal healthy person carries approximately 400 protein-damaging DNA mutations and two mutations directly linked with a high risk of disease. The research was published in the December 7th issue of The American Journal of Human Genetics [1].

Hundreds of DNA mutations

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Gene that Influences When You Wake Also Predicts Time of Death

by on Tuesday, November 27, 2012

Researchers have identified a common gene variant that is responsible for a person’s tendency to be an early riser or a night owl. This common genetic variant also helps determine the time of day a person is most likely to die. The findings appear in the November 2012 issue of the Annals of Neurology.

Body clock

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Unhappy at Work? Genes May Play a Key Role

by on Monday, November 19, 2012

Work stress, job satisfaction and health problems due to high stress have more to do with genetics than previously recognized, according to a study published in the journal Organizational Behavior and Human Decision Processes.

Stressed at work

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Heart Conditions Don’t Just Affect Older Adults

by on Friday, February 3, 2012

This article was written by Julianne Wyrick.

February is American Heart Month. Sponsored by the American Heart Association, American Heart Month is a time to battle cardiovascular disease and educate people on what they can do to live heart-healthy lives. Heart disease, including stroke, is the leading cause of death for men and women in the United States.

How much do you know about the condition of your heart? Heart health awareness typically focuses on heart disease in older adults caused by an unhealthy diet and a lack of exercise. But what if you could be at risk for cardiac arrest and sudden death even though you are young and in shape?

Heart arrhythmiaImage credit: Heart arrhythmia via Shutterstock

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Scientists Correct Sickle Cell Disease in Adult Mice

by on Tuesday, November 8, 2011

National Institutes of Health (NIH)-funded scientists have corrected sickle cell disease in adult laboratory mice by activating production of a special blood component normally produced before, but not after, birth.

Sickle cell disease is a recessive genetic disorder caused by a single base mutation in the gene for hemoglobin, beta locus (HBB). Hemoglobin is responsible for transporting oxygen throughout the body. People living with sickle cell disease have two copies of an altered gene that produces sickle hemoglobin instead of normal adult hemoglobin. Sickle hemoglobin changes shape after releasing its oxygen, causing the red blood cell to become stiff, misshapen and sticky, and slowing blood flow to tissues. This process damages organs and causes pain.

Normal hemoglobin vs sickle cell

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