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Cape Town, South Africa - South Africa's health minister took another controversial foray into the AIDS debate Thursday by questioning international medical studies that say circumcision helps reduce HIV infections in men.
It sounds far-fetched - sticking needles in women to help them become pregnant - but a scientific review suggests that acupuncture might improve the odds of conceiving if done right before or after embryos are placed in the womb.
Babies exposed to lotion, shampoo and powder had more than four times the level of phthalates in their urine as those whose parents had not used the products. Previous research found that the substances altered the children's hormones.
The U.S. Food and Drug Administration has approved the first replacement heart valve made from donated human tissue in which the cells have been removed.
Traditionally, when human tissue is recovered from a cadaver for future implantation, it is inspected, cleaned and decontaminated to prevent infection, but the allograft (human) product remains otherwise unchanged.
The FDA said CryoLife Inc. has added a manufacturing step to its CryoValve SynerGraft Pulmonary Valve and Valved-Conduit Allograft that removes the tissue's cells and cellular debris.
What remains is a scaffold of connective tissue that still functions like a human heart valve, potentially lowering the risk of an immune response and subsequent tissue rejection, the FDA said.
Traditionally, when human tissue is recovered from a cadaver for future implantation, it is inspected, cleaned and decontaminated to prevent infection, but the allograft (human) product remains otherwise unchanged.
The FDA said CryoLife Inc. has added a manufacturing step to its CryoValve SynerGraft Pulmonary Valve and Valved-Conduit Allograft that removes the tissue's cells and cellular debris.
What remains is a scaffold of connective tissue that still functions like a human heart valve, potentially lowering the risk of an immune response and subsequent tissue rejection, the FDA said.
Spending hours on a cell phone each day may affect the quality of a man's sperm, preliminary research suggests.
2008 is shaping up to be the election year that we finally get to have the Great American Healthcare Debate again. Harry and Louise are back with a vengeance. Conservatives are rumbling around the talk show circuit bellowing about the socialist threat to the (literal) American body politic. And, as usual, Canada is once again getting dragged into the fracas, shoved around by both sides as either an exemplar or a warning -- and, along the way, getting coated with the obfuscating dust of so many willful misconceptions that the actual facts about How Canada Does It are completely lost in the melee.
I'm both a health-care-card-carrying Canadian resident and an uninsured American citizen who regularly sees doctors on both sides of the border. As such, I'm in a unique position to address the pros and cons of both systems first-hand. If we're going to have this conversation, it would be great if we could start out (for once) with actual facts, instead of ideological posturing, wishful thinking, hearsay, and random guessing about how things get done up here.
To that end, here's the first of a two-part series aimed at busting the common myths Americans routinely tell each other about Canadian health care. When the right-wing hysterics drag out these hoary old bogeymen, this time, we need to be armed and ready to blast them into straw. Because, mostly, straw is all they're made of.
I'm both a health-care-card-carrying Canadian resident and an uninsured American citizen who regularly sees doctors on both sides of the border. As such, I'm in a unique position to address the pros and cons of both systems first-hand. If we're going to have this conversation, it would be great if we could start out (for once) with actual facts, instead of ideological posturing, wishful thinking, hearsay, and random guessing about how things get done up here.
To that end, here's the first of a two-part series aimed at busting the common myths Americans routinely tell each other about Canadian health care. When the right-wing hysterics drag out these hoary old bogeymen, this time, we need to be armed and ready to blast them into straw. Because, mostly, straw is all they're made of.
Scientists may one day be able to destroy viruses in the same way that opera singers presumably shatter wine glasses. New research mathematically determined the frequencies at which simple viruses could be shaken to death.
In experiments with rats, researchers have identified the change in brain circuitry that drives development of a compulsion to seek drugs, even when that compulsion is self-destructive. The researchers demonstrated the function of the circuitry by selectively switching off drug-seeking in the animals. They said their findings show the key role of the brain region, known as the striatum, which is a region activated by reward.
The researchers drew on previous studies indicating that when drug-seeking transforms from a goal-directed behavior to a compulsion, control over that behavior shifts from the ventral to dorsal region of the striatum. In their experiments, the researchers first trained rats to press a lever to obtain cocaine, which also activated a signal light. The researchers manipulated the schedule of cocaine-receiving and lever-pressing so that it would induce compulsive lever-pressing in the rats to obtain cocaine.
The researchers drew on previous studies indicating that when drug-seeking transforms from a goal-directed behavior to a compulsion, control over that behavior shifts from the ventral to dorsal region of the striatum. In their experiments, the researchers first trained rats to press a lever to obtain cocaine, which also activated a signal light. The researchers manipulated the schedule of cocaine-receiving and lever-pressing so that it would induce compulsive lever-pressing in the rats to obtain cocaine.
Could a simple vitamin A and zinc supplement help protect young children from malaria? A randomized double blind trial would suggest the answer is yes.
Jean-Bosco Ouedraogo of the Institut de Recherche en Sciences de la Santé (IRSS) in Bobo Dioulasso, Burkina Faso, and colleagues explain that vitamin A and zinc play a critical role in the normal function of the immune system, and may even play a synergistic role for reducing the risk of infection including malaria caused by Plasmodium falciparum.
Jean-Bosco Ouedraogo of the Institut de Recherche en Sciences de la Santé (IRSS) in Bobo Dioulasso, Burkina Faso, and colleagues explain that vitamin A and zinc play a critical role in the normal function of the immune system, and may even play a synergistic role for reducing the risk of infection including malaria caused by Plasmodium falciparum.
St. Paul, Minn. - The Minnesota Court of Appeals has ruled that a mother who didn't like the way her baby's circumcision looked cannot sue a Fridley hospital for medical malpractice.
Comment: Maybe there is no shadow of doubt in Lewis's mind, but what the article does not mention is that there is indeed doubt among several researchers.
Read this thread on the forum: Bogus Evidence That Male Circumcision Prevents HIV Spread
Other articles of interest:
Circumcision does not affect HIV in U.S. men
Male genital mutilation could save millions from HIV infection, AIDS conference told - and be an almost unlimited source for Western facial cream
Male circumcision overstated as prevention tool against AIDS