Herbicide causes prostate problems, delays puberty

September 6, 2010
Herbicide causes prostate problems, delayed puberty
George Atkinson

Exposure to low doses of atrazine, a widely used herbicide, caused prostate inflammation in rats and delayed the onset of puberty. Atrazine, a herbicide used to control weeds and grass crops such as corn and sugarcane, is known for being relatively persistent in the environment, potentially find their way in water supplies.

Research, appearing in Reproductive Toxicology, found that the incidence of prostate inflammation spent 48 percent in rodent not exposed to 81 percent in male offspring which were prenatally exposed to a mixture of atrazine and its degradation products group.The severity of inflammation increased with the strength of the puberty dosis.La also was delayed in animals receiving atrazine.Doses of atrazine given to rats during the last five days of pregnancy are similar to the levels in drinking water sources.

"Do not look forward to seeing these kinds of effects at these low levels," said Suzanne Fenton, National Institute of environmental sciences of the salud.Fenton was the author of a document of 2007 showed the low doses of atrazine delayed breast development in females.

Fenton notes that these findings may extend beyond of atrazine alone, and can be relevant to other herbicides to be found in the same family of chlorotriazine including propazine and simazina.Los three herbicides created the same set of decomposition products.

"We hope that this information will be useful to the EPA, to complete its assessment of the risk of atrazine," said Linda Birnbaum, director of the national program of Toxicology at the National Institute of environmental health sciences.

(Atrazine is sold under the brands Aatrex, PK Actinite, Akticon, Argezin, Atazinax, Atranex, Atrataf, Atred, Candex, Cekuzina-T, Chromozin, Crisatrina, Cyazin, Fenamin, Fenatrol, Gesaprimm, Hungazin, Inakor, Pitezin, Primatol, Radazin, Strazine Vectal, Weedex A., Wonuk, Zeapos Zeazine)

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Source: Institute of national environmental health sciences

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Getting from ripped? Heavyweights do not help to

August 16, 2010
Getting of ripped? don?t heavyweight help
George Atkinson

The secret of muscle building isn't heavyweight, say scientists from McMaster University, but the pump iron for because with light weights up to fatigue muscular.publicado in the journal PLoS ONE, the new study contradicts current dogma gym.

"Instead of snoring and straining to lift heavy loads, you can grab something much lighter but you have to lift it until you cannot lift already," said McMaster Stuart Phillips."We are convinced that muscle growth means stimulating their muscle to make new proteins of muscle, a process in the body over time builds up in larger muscles".

"The study shows that it is not really the weight lifting, but the fact that you get muscle fatigue that is the critical point in building muscle. researchers used weights light representing a percentage of what you could lift the temas.Los heavyweight settled for 90 percent of the best lift light weights in one simple and the person 30 per cent.""It's a very light weight," says Phillips, noting that the range of 90-80 percent is generally something people can lift from 5-10 times before fatigue is establece.En 30 percent, the subjects could lift that weight at least 24 hours before he felt fatigue.

"We are excited to see where will lead this new paradigm," says Phillips, who believes that the study has practical significance for fitness enthusiasts and people with mass of skeletal muscle committed themselves, such as older people.

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Source: McMaster University

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Two-thirds of women reports on gender issues

August 2, 2010
Two-thirds of women reports on gender issues
George Atkinson

Hackensack University Medical Center, New Jersey, a new study in female sexual dysfunction identified problems to reach orgasm and lack of desire as the most common sexual dysfunctions affecting women.

The involved researchers asked nearly 600 women aged between 18-95 on six key areas of female sexual dysfunction (FSD): lack of desire, arousal, lack of lubrication, issues problems to achieve an orgasm, lack of satisfaction and intercourse pain. Almost two-thirds of women surveyed reported at least one area of the problem.

"We found that 63 percent of women are victims of the Division of family services and that there were important links between the Division of family services and age, State of menopause and selective antidepressants," said study co-author Dr. Debra Fromer.

Some of the key findings included: more age groups sexually assets were 31-45 - age (87%), 18 - 30 years - old (85%) and 46-54 - year years (74%).Then fell sharply in the 55 - 70 - age (45%) and women who were over the age of 70 (15%).The more general problem was lack of desire (47%), followed by an orgasm problems (45%), problems of excitation (40%), lack of satisfaction (39%), lack of lubrication (37%) and pain (36%).Five of the six issues increased to women got older: 36 96%, excitation of 27-54%, lubrication of 26 to 45 per cent, satisfaction from 28 to 88%, and 10 to the single category that improves with age 56%.La pain wanted to orgasm, with greater in the group age (54%) than in the 31-45 (43%) and 46-54 (48%) of 18-30 age groups problems.

They were the three main problems by age group: 18-30 age: orgasm (54%), desire (36%) and the satisfaction (28%) de 31-45 years of age: wish (48%), orgasm (43%) and satisfaction (40%) from 46-54 years old: wish (65%), satisfaction (53%) and orgasm (48%) of 55 to 70 years of age: desire (77%), orgasm (66%), satisfaction (65%) more than 70 years of age: wish (96%), satisfaction (88%) and orgasm (87%).

"Researchers have found significant associations between the most important categories of sexual dysfunction, reduced physical and emotional satisfaction and well-being general.Por that is so important to ensure that problems are identified and addressed wherever possible," concluded Fromer.

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Source: Center of the University of Hackensack, New Jersey medical

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Married guys less stressed

23 August 2010
Married guys less prominent
George Atkinson

Being a boy only long has been thought to be more stressful and now a new study confirms that they are married alter their hormones in a way that reduces stress.And you don't need a marriage license to benefit as unmarried persons in a romantic, committed relationship show that the same reduced responses to stress, according to the Dario Maestripieri researcher at the University of Chicago.

"These results suggest that mismatch and unique individuals are more receptive to psychological stress that married individuals, a finding consistent with a growing body of evidence showing that the marriage and social support can buffer against stress," said Maestripieri, who was the principal investigator in the study.

Conclusions of the Maestripieri had involved measuring the levels of cortisol in the subjects as undergone experiences estresantes.Cortisol is known as the stress hormone.

"" We found that unpaired individuals of both sexes had increased levels of cortisol than people married,"says Maestripieri.""Although the marriage can be very stressful, should make it easy for people managing other stressors in their vida.Lo we find is that the marriage has a moderator on the responses of cortisol to psychological stress effect, and that is very new."

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Source: University of Chicago

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Says male menopause affects 5 millions of men

August 30, 2010
Assert male menopause affects 5 millions of men
George Atkinson

Robert Brannigan, a urologist at Northwestern Memorial Hospital, says that 95 per cent of male menopause patients are not diagnosed and without male tratamiento.Menopausia or Hypogonadism, as it is known in the medical community, occurs when the testes do not produce enough testosterone, the hormone that plays a role key in masculine traits.

"This is a very prevalent," said Brannigan, who explained that hormonal variations are a normal part of aging."Women, ovulation comes to an end and hormone production decreases at a relatively fast time, considering that the experience of male hormone changes more slowly, with levels of testosterone falling around one percent each year starting in thirty years from the end of a man".

At the age of seventy years, the reduction in the level of testosterone in male could be as high as 50% or more compared to the levels of reference, but Brannigan notes that aging men aren't the only ones at risk.A number of genetic causes can affect males from birth and is usually diagnosed with insufficient progress normally through of puberty during the teenage years.

Treatment for male hypogonadism options include the hormone replacement therapy (HRT) on topical gels, patches, and the inyecciones.A through HRT, doctors can restore muscle strength and function sexual.Además, men often experience increased energy and a more general sense of well-being.

"" We are seeing more men affected by male hypogonadism we saw ten years ago,"said Brannigan.""However, many men are still suffering in silence due to lack of awareness surrounding the trastorno.Porque male hypogonadism can significantly affect the quality of life, it is important that men pay attention to his body and openly discuss your symptoms with your doctor in order prevent overlooking the cause and to avoid the lack of an opportunity for the appropriate therapy."Male Hypogonadism is commonly diagnosed through a simple blood test.

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Source: Northwestern Memorial Hospital

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Food packaging behind of increase in testosterone levels?

13 September 2010
Food packaging behind of increase in testosterone levels?
George Atkinson

Analysis of the first of its kind, "regular" levels of exposure to a common food packaging chemical found to be associated increases in the level of testosterone in the sangre.El wih study, in the latest issue of the journal Environmental Health Perspectives, aimed at measuring the daily Bisphenol A (BPA) loads excretado by adults, and to examine the statistical associations between the amount of estrogen and testosterone concentrations exposure and serum BPA.

Daily exposure level of average gap in this population of European study (more than 5 micrograms per day) was slightly higher than the recent comparable estimates for the population of States Unidos.El study found that greater BPA exposure was statistically associated with increases in testosterone blood levels.

"This is the first study of the gap of a European country and confirms that 'routine' population exposures are not insignificant."Also shows that increased exposure to BPA is statistically associated with modest changes in the levels of testosterone in the new hombres.Esta evidence justify appropriate human security studies to clarify the effects of BPA in people, "said David Melzer, researcher at the school of Medicine of the peninsula, Exeter, United Kingdom."

BPA is one of products high production volume chemicals in the world, with over 2.2 million tonnes produced anualmente.La main source of BPA in people believed that of residues in food, leaching of certain types of polycarbonate and packaging of detectable in the bodies of more than 90 percent of the population. resina.Es has been associated with the interruption of thyroid hormone, altered depending on pancreatic beta cells, cardiovascular disease and obesity.

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Source: Faculty of medicine and dentistry peninsula

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Erectile meds linked to risk of STD

A new report that appears in the journal Annals of Internal Medicine says that men over the age of 40 years who use drugs for erectile dysfunction (ED) are more likely to be sexually transmitted diseases. Researchers behind the report say that doctors prescribe to ED drugs should be sure to discuss the importance of sex practices safer, especially with older patients.

"" Anyone who does not practice safe, no matter their age sex can get STDs,"says Anupam B. Jena (Massachusetts General Hospital), the lead author of the study.""While the sexually transmitted diseases are quite rare among higher - order 1 per 1,000 people - men found that rates of STD in men who use drugs ED were two or three times higher, both before and after that fills your first prescription."

ED drugs have become popular from sildenafil (Viagra) was introduced in 1998.As soon as it was in 2002 estimated up to 20 percent of men over 40 Americans had attempted a ED.Los drug studies have shown that increasing rates of sexually transmitted diseases in older individuals and over 50 people are much less likely than younger men used condoms during sexual intercourse. Worryingly, a survey of doctors found that rarely, if ever, discussed reducing sexual risk factors with the middle of the patients of age or older.

Small studies of men who have sex with men had associated with increased rates of sexually transmitted diseases and high-risk behaviors ED drug.But no previous studies had examined the relationship between drug ED and STD risk in a large and representative private sample insured older men.For the current study, researchers examined health insurance claims records corresponding to 1997 although 2006 44 large U.S. employers.

"While the data collected for the study could not indicate if using own ED drugs increase risk of STD, authors are investigating this question in a subsequent study.""" Health care providers must recognize that their older adult patients who are on the ED drugs already are at increased risk for having or acquiring STDs, "says co-researcher Dana Goldman (University of Southern California).""Both doctors who prescribe these drugs and pharmacists that fill the prescriptions must counsel all the patients on the importance of safer sexual practices".

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Source: Massachusetts General Hospital

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