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Health & Medicine News
Thu, 24 Jul 2014 14:42:53 EDT
Pesticide linked to three generations of disease: Methoxychlor causes epigenetic changes
Researchers say ancestral exposures to the pesticide methoxychlor may lead to adult onset kidney disease, ovarian disease and obesity in future generations.
Thu, 24 Jul 2014 14:42:47 EDT
Linking microbial, immune environment in semen to HIV viral load, transmission
HIV infection re-shapes the relationship between semen bacteria and immune factors which in turn affects viral load, suggesting that the semen microbiome plays a role in sexual transmission of HIV, researchers report. While HIV is found in many body fluids, sexual transmission through semen is the most common route of infection.
Thu, 24 Jul 2014 14:16:08 EDT
DNA mostly 'junk?' Only 8.2 percent of human DNA is 'functional', study finds
Only 8.2 percent of human DNA is likely to be doing something important -- is 'functional' -- say researchers. This figure is very different from one given in 2012, when some scientists involved in the ENCODE (Encyclopedia of DNA Elements) project stated that 80% of our genome has some biochemical function.
Thu, 24 Jul 2014 14:16:04 EDT
Atomic structure of key muscle component revealed
Adding to the growing fundamental understanding of the machinery of muscle cells, a group of biophysicists describe -- in minute detail -- how actin filaments are stabilized at one of their ends to form a basic muscle structure called the sarcomere. With the help of many other proteins, actin molecules polymerize to form filaments that give rise to structures of many different shapes. The actin filaments have a polarity, with a plus and minus end, reflecting their natural tendency to gain or lose subunits when not stabilized.
Thu, 24 Jul 2014 13:40:31 EDT
Protein couple controls flow of information into brain's memory center
Neuroscientists have succeeded in providing new insights into how the brain works by analyzing tissue samples from mice to identify how two specific proteins, 'CKAMP44' and 'TARP Gamma-8', act upon the brain's memory center. Brain function depends on the active communication between nerve cells, known as neurons. For this purpose, neurons are woven together into a dense network where they constantly relay signals to one another.
Thu, 24 Jul 2014 12:45:05 EDT
Joblessness could kill you, but recessions could be good for your health
While previous studies of individuals have shown that employees who lose their jobs have a higher mortality rate, more comprehensive studies have shown, unexpectedly, that population mortality actually declines as unemployment rates increase. Researchers set out to better understand these seemingly contradictory findings.
Thu, 24 Jul 2014 12:42:56 EDT
Cancer: Treatment that prevents tumor metastasis identified in animal study
Metastasis, the strategy adopted by tumor cells to transform into an aggressive form of cancer, are often associated with a gloomy prognosis. Managing to block the metastasis or, even better, prevent their formation would be a giant step towards the fight against cancer. Researchers successfully performed this on models of human tumors in mice.
Thu, 24 Jul 2014 12:36:49 EDT
High school students in some schools smoking at same rate as adults
Cuyahoga County high school students are smoking tobacco products at the same rate as adults in the county, according to new data. In 2013, more than 22 percent, or one in five high school students, report use of any tobacco product within the prior 30 days.
Thu, 24 Jul 2014 11:25:58 EDT
Teens pay high psychiatric toll when raised in conditions of political conflict
Israeli youths exposed to protracted conflict suffer far higher levels of anxiety, phobia, fear, depression, obsessive-compulsive symptoms, and paranoia than their counterparts in the US. The largest cross-sectional empirical study of its kind, the research assessed youths exposed to terrorism, missile attacks, war, forced residential relocations, and military operations.
Thu, 24 Jul 2014 11:25:56 EDT
Metastatic brain tumor treatment could be on the horizon with use of SapC-DOPS
A new study has provided hope that previously studied SapC-DOPS could be used for treatment of brain cancer that has spread. "These results support the potential of SapC-DOPS for the diagnosis and therapy of primary and metastatic brain tumors which is critically needed to increase survival rates of patients with this illness,” one researcher said.
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