ScienceDaily: Top Health News

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• Fathers biologically attuned to their children when sleeping nearby, research reveals
• Precautions for tick-borne disease extend 'beyond Lyme'
• Exposure to bisphenol A (BPA) early in life results in high levels of anxiety; Soy mitigates effects, study shows
• Work with germ-killing copper could save thousands of lives
• Novel surgery removes rare tumor, rebuilds face and jaw
• Stress prompts some to retain as much salt as eating fries, study finds
• Strategy developed to improve delivery of medicines to the brain
• Melanoma manifests differently in children than in adults, study finds
• Red flag raised on offbeat hearts
• Raised antibody levels linked to greater long term risk of rheumatoid arthritis
• Diagnostic chest radiation before age 30 may increase breast cancer risk in BRCA1/2 mutation carriers

Fathers biologically attuned to their children when sleeping nearby, research reveals Posted: 07 Sep 2012 01:52 PM PDT Mothers aren't the only ones who are biologically adapted to respond to children. New research shows that dads who sleep near their children experience a drop in testosterone. Previous research from humans and other species suggests this decrease might make men more responsive to their children's needs and help them focus on the demands of parenthood.

Precautions for tick-borne disease extend 'beyond Lyme' Posted: 07 Sep 2012 11:23 AM PDT This year's mild winter and early spring were a bonanza for tick populations in the eastern United States. Reports of tick-borne disease rose fast. While Lyme disease is the most common tick-borne disease in the Northeast and Upper Midwest, new research results emphasize that it is not the greatest cause for concern in most Southeastern states.

Exposure to bisphenol A (BPA) early in life results in high levels of anxiety; Soy mitigates effects, study shows Posted: 07 Sep 2012 10:16 AM PDT New research led by researchers at North Carolina State University shows that exposure to the chemical bisphenol A early in life results in high levels of anxiety by causing significant gene expression changes in a specific region of the brain called the amygdala. The researchers also found that a soy-rich diet can mitigate these effects.

Work with germ-killing copper could save thousands of lives Posted: 07 Sep 2012 10:15 AM PDT When Adam Estelle graduated from the University of Arizona's materials science and engineering program four years ago, he had no idea he would be involved in saving thousands of lives. Now, Estelle is working with technology based on copper alloys that kill bacteria, fungi and viruses. The metals can be fashioned into everything from IV poles to sinks to bed rails -- just about anything that is frequently touched in hospitals.

Novel surgery removes rare tumor, rebuilds face and jaw Posted: 07 Sep 2012 09:51 AM PDT Using a novel surgical approach, it's possible to rebuild a functional lower jaw and mouth, and preserve a patient's ability to eat and speak after removing an invasive facial tumor, according to a new report.

Stress prompts some to retain as much salt as eating fries, study finds Posted: 07 Sep 2012 09:50 AM PDT When stressed, about 30 percent of blacks hold onto too much sodium, the equivalent of eating a small order of fast food French fries or a small bag of potato chips, according to new research.

Strategy developed to improve delivery of medicines to the brain Posted: 07 Sep 2012 06:55 AM PDT New research offers a possible strategy for treating central nervous system diseases, such as brain and spinal cord injury, brain cancer, epilepsy, and neurological complications of HIV. The experimental treatment method allows small therapeutic agents to safely cross the blood-brain barrier in laboratory rats by turning off P-glycoprotein, one of the main gatekeepers preventing medicinal drugs from reaching their intended targets in the brain.

Melanoma manifests differently in children than in adults, study finds Posted: 07 Sep 2012 04:24 AM PDT Physicians studying melanoma and related conditions occurring in childhood recently published results of their experience with cases of pathologically confirmed childhood melanoma. They found evidence that the disease manifests differently in children than in adults, particularly with regard to the likelihood and significance of lymph node metastases.

Red flag raised on offbeat hearts Posted: 07 Sep 2012 04:18 AM PDT An estimated 2.5 million Americans suffer from irregular heartbeats -- also known as atrial fibrillation. The incidence of this potentially life changing cardiovascular condition is on the rise and expected to more than double by 2050.

Raised antibody levels linked to greater long term risk of rheumatoid arthritis Posted: 06 Sep 2012 04:08 PM PDT Men and women with raised levels of an antibody known as rheumatoid factor in their blood have up to a 26-fold greater long term risk of developing rheumatoid arthritis, a new study finds.

Diagnostic chest radiation before age 30 may increase breast cancer risk in BRCA1/2 mutation carriers Posted: 06 Sep 2012 04:08 PM PDT Women carrying a mutation in the BRCA1 or BRCA2 genes (which control the suppression of breast and ovarian cancer) who have undergone diagnostic radiation to the chest before the age of 30 are more likely to develop breast cancer than those who carry the gene mutation but who have not been exposed, a new study reveals.

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