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Coffee, exercise may avoid skin cancer |
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Written by Administrator
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Saturday, 17 January 2009 17:59 |
Coffee, exercise may avoid skin cancer
Tue, 31 Jul 2007 04:49:32 GMT
Source: AFP  | Drinking coffee and exercise may prevent skin cancer by killing off cells damaged by the sun's ultraviolet-B radiation, a new study shows.
The coffee-exercise combination produces a 'dramatic' fourfold increase in apoptosis - the programmed death of pre-cancerous cells in laboratory mice, said the researchers of New Jersey's Rutger University.
Researchers compared UVB radiation effects on groups of hairless mice that drank caffeinated water (the human equivalent of one or two cups of coffee a day); that exercised on a running wheel; that had caffeine and ran; and a control group.
Compared to the control group, mice that only drank coffee showed a 95 percent increase in UVB-induced apoptosis, those that only exercised showed a 120 percent increase, while those who drank and exercised showed an almost 400 percent increase.
"The differences between the groups in the formation of UVB-induced apoptotic cells - those cells derailed from the track leading to skin cancer - were quite dramatic," said Allan Conney, one of the study's authors.
The promising results, however, were likely due to "some kind of synergy ... still somewhat of a mystery" which, until better understood, precludes taking the research to "the next level ... human trials," he added.
AGB/RE
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Simple guidelines to a longer life |
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Written by Administrator
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Saturday, 17 January 2009 17:57 |
Simple guidelines to a longer life
Wed, 09 Jan 2008 19:20:49 GMT
New research has revealed that simple lifestyle changes can promote longevity regardless of how overweight or poor an individual is.
According to the Public Library of Science Medicine study, regular physical activity, eating enough fruit and vegetables and not smoking or drinking too much alcohol adds up to 14 years to a person's lifespan.
Findings showed the above mentioned factors not only contributed to cardiovascular diseases and related mortality but also increased the risk of cancer deaths.
It was noted that social class and BMI (body mass index) did not play an important role in longevity.
The study concluded that a 60-year-old person who does not lead a healthy life based on the research criteria has the same mortality risk as a 74-year-old individual with a healthy lifestyle.
PKH/HGH Source: http://www.presstv.ir/detail.aspx?id=38103§ionid=3510210
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Eyes show cerebral malaria infection |
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Written by Administrator
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Saturday, 17 January 2009 16:35 |
Eyes show cerebral malaria infection
Sat, 17 Jan 2009 16:13:22 GMT
 Retinal changes caused by cerebral malaria | By studying the retina, scientists have discovered the reason for which cerebral malaria can become life-threatening in many cases.
Cerebral malaria has long been associated with certain changes in the retina, known as malarial retinopathy. Many physicians, therefore, examine the eye to reach a diagnosis.
A new study, however, has examined the eyes of affected individuals to determine the mechanism by which cerebral malaria results in fatal damages.
According to the study published in the Journal of Infectious Diseases, the build-up of infected blood cells in narrowed cerebral blood vessels contributes to oxygen deprivation leading to coma, convulsion and death.
Scientists believe drugs such as statins can effectively fight cerebral malaria through improving circulation. They are optimistic that their findings will pave the way for the development of more effective treatments for the condition.
Malaria, which is caused by a parasite transmitted by mosquitoes, infected more than 247 million individuals worldwide in 2006. The World Health Organization (WHO) has reported malaria to be the cause of about 881,000 deaths in the world.
PKH/HGH Source: http://www.presstv.ir/detail.aspx?id=82718§ionid=3510210
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Science and Health
