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Health & Medicine News
Thu, 31 Jul 2014 11:09:46 EDT
Lead in teeth can tell a body's tale, study finds
Your teeth can tell stories about you, and not just that you always forget to floss. The discovery could help police solve cold cases, an investigator has said. For instance, if an unidentified decomposed body is found, testing the lead in the teeth could immediately help focus the investigation on a certain geographic area. That way, law enforcement can avoid wasting resources checking for missing persons in the wrong places.
Thu, 31 Jul 2014 10:25:24 EDT
Effect of loud noises on brain revealed in study
Prolonged exposure to loud noise alters how the brain processes speech, potentially increasing the difficulty in distinguishing speech sounds, according to neuroscientists. Exposure to intensely loud sounds leads to permanent damage of the hair cells, which act as sound receivers in the ear. Once damaged, the hair cells do not grow back, leading to noise-induced hearing loss.
Thu, 31 Jul 2014 10:25:20 EDT
Monoamine oxidase A: Biomarker for postpartum depression
Postpartum mood swings are correlated with high monoamine oxidase A binding, a study shows. For most women, the birth of their baby is one of the most strenuous but also happiest days in their lives. The vast majority of women experience a temporary drop in mood for a few days after birth. These symptoms of "baby blues" are not an illness; however, in some cases they can represent early signs of an imminent episode of depression: in 13 percent of mothers, the emotional turmoil experienced after childbirth leads to the development of a full-blown postpartum depression.
Thu, 31 Jul 2014 09:51:45 EDT
Breakthrough in understanding of important blood protein
A previously unknown protein mechanism has now been described by new research. This provides an exceptionally detailed understanding of how nature works, and it can also provide the ability to control nature -- in this case, it is about how coagulated blood can be dissolved, and this can lead to treatment of diseases carrying a risk of blood clots.
Thu, 31 Jul 2014 09:44:47 EDT
Key to aging immune system: Discovery of DNA replication problem
The immune system ages and weakens with time, making the elderly prone to life-threatening infection and other maladies, and scientists have now discovered a reason why.
Thu, 31 Jul 2014 09:44:45 EDT
Children and hot cars a cause for deadly concern
Nearly 700 children have lost their lives over the last 20 years in the United States as a result of being left in or playing in a hot car. At last count, the total in the U.S. this year is 18.
Wed, 30 Jul 2014 20:37:07 EDT
Otzi Iceman had genetic predisposition for atherosclerosis: Much the same in ancient peoples as it is today
While prevalence and types of risk factors for atherosclerosis have varied over time from ancient times to modern society -- such as levels of obesity, physical activity -- genetic predisposition/risk for the condition today appears to be very similar to that in ancient times.
Wed, 30 Jul 2014 20:36:56 EDT
Benefits of e-cigarettes outweigh harms, current evidence suggests
A major scientific review of available research on the use, content, and safety of e-cigarettes has concluded that -- although long-term health effects of e-cigarette use are unknown -- compared with conventional cigarettes they are likely to be much less harmful to users or bystanders.
Wed, 30 Jul 2014 20:35:19 EDT
Over 80% of patients undergoing interventions for aortic stenosis are in same or better health one year after procedure
A survey of 13,860 patients who had undergone interventions for aortic valve disease in Germany has revealed that over 80% were in the same or a better state of health one year after the intervention, and was satisfied with the procedural outcome. Aortic stenosis -- the narrowing of the aortic valve in the heart -- is the most frequent valvular heart disease in the aging Western population.
Wed, 30 Jul 2014 17:31:30 EDT
Mechanism promoting multiple DNA mutations described by scientists
Recent studies have shown that cancer development frequently involves the formation of multiple mutations that arise simultaneously and in close proximity to each other. These groups of clustered mutations are frequently found in regions where chromosomal rearrangements take place. The finding that cancer development often involves multiple mutations arising in clusters and in regions where chromosomal rearrangement takes place may one day lead to new cancer therapies.
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