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Changing demographic trends will impact the future of international relations, according to the latest issue of Public Policy & Aging Report. Several hotbed areas in the world that offer the motive and opportunity for political violence are due to stabilize by the year 2030.

The use of a drug to activate stem cells that differentiate into bone appears to cause regeneration of bone tissue and be may be a potential treatment strategy for osteoporosis.

Individuals who are obese are at increased risk of developing a combination of medical disorders associated with type 2 diabetes and heart disease known as the metabolic syndrome. Recent studies have suggested that adipose (fat) tissue obesity induces an inflammatory state that is crucial to the development of the metabolic syndrome.

Researchers have identified five genes within animal models displaying protective capabilities against a hallmark trait of Parkinson's disease. The research is a possible step toward identifying both new targets for drug treatment development and genetic factors which make some people more susceptible to the disease, the researchers said.

Consistent condom use can reduce the spread of HIV, but are they the answer to rising rates of other sexually transmitted infections? Despite some inconsistencies in the evidence, studies show that condoms are an effective physical barrier against passage of even the smallest sexually transmitted pathogens. But a big problem with condoms is that average people, particularly teenagers and young adults, do not use them consistently, regardless of knowledge or education.

Discovery of an unexpected protein-protein interaction has led scientists to identify a drug that slows the progression of amyotrophic lateral sclerosis in mice and nearly doubles the animals' lifespan. ALS, also known as Lou Gehrig's disease, is a fatal, progressive neurodegenerative disease that affects the motor nerve cells of the brain and spinal cord.

Celebrex, a popular arthritis drug that blocks pain by inhibiting an enzyme known as COX-2, has been shown in laboratory studies to induce arrhythmia, or irregular beating of the heart, via a novel pathway unrelated to its COX-2 inhibition.

Taking vitamins C or E during pregnancy will not reduce a woman's risk of experiencing pre-eclampsia, a Cochrane Systematic Review has concluded. Pre-eclampsia can occur during pregnancy when a woman develops high blood pressure and tests show that protein is appearing in her urine.

Researchers have developed a sensor system that continuously monitors the air around persons prone to asthma attacks. Worn in the pockets of a vest, the new system could help researchers understand the causes of asthma attacks.

Just as many scientists had given up the search, researchers have discovered that the pancreas does indeed harbor stem cells with the capacity to generate new insulin-producing beta cells.