Bachelor Posted June 29, 2004 What do you think about this finding or just another scare tactic. If this is true accurate, Nomads we need to be concerned. By Patricia Reaney LONDON (Reuters) - Mobile phones may damage men's sperm, Hungarian scientists say, in a study that fertility experts dismissed Monday as inconclusive. Carrying a mobile in hip pockets or a holster on the waist could cut sperm count by nearly 30 percent, according to the research. "The prolonged use of cell phones may have a negative effect on (sperm production) and male fertility," Dr. Imre Fejes, of the department of obstetrics and gynecology at the University of Szeged said in a summary of the study. Fejes and his team analyzed sperm from 221 men and questioned them about their use of mobile phones. They found correlations between the use of the phones, even in a standby setting, and reduced sperm concentration and quality. Fejes said more research is needed to support the findings, which will be reported to this week's conference in Berlin of the European Society of Human Reproduction and Embryology. Professor Hans Evers, a past president of the society, said the results are interesting but far from conclusive. "It ... appears not to take into account the many potential confounding factors that could have skewed the results," Evers, who works at the Academic Hospital in Maastricht in the Netherlands, said in a statement. He added that the study did not seem to analyze stress levels, the type of jobs the men have and whether they smoked, which could all influence sperm count. "These factors would have a considerable effect on the outcome of the research," he said. Britain's National Radiological Protection Board, which has reviewed research into the health effects of exposure to radiofrequency waves including mobile phones, said, so far, the waves appear to be safe. But mobiles phones have been in widespread use for only a short time so more research is needed. "This is an unexpected result and we will look at it very carefully but the decline in male fertility has been going on for decades now, before the widespread use of mobile phones, and there can be many reasons for it," Dr. Michael Clark, scientific spokesman for the British board, told Reuters. The World Health Organization (news - web sites) has said none of the recent reviews has concluded that exposure to radiofrequency waves from mobile phones or their base stations damages health, but stresses that more studies are needed. Source http://story.news.yahoo.com/news?tmpl=story&cid=573&ncid=757&e=1&u=/nm/20040628/od_nm/health_mobiles_dc Quote Share this post Link to post Share on other sites
Bachelor Posted June 29, 2004 Yeah..Phil indeed it is but hey here is the good news to. Qat or Khat seems to be a solution finally many nomads will have a good reasoning haye? Khat plant may create next men’s fertility wonder drug Posted By: News-Medical in Men's Health News Published: Monday, 28-Jun-2004 Until now there have been conflicting reports of the effects of PPAs on male fertility. Amongst people who chew khat leaves there is a belief that it improves a man’s sex drive and ability to maintain an erection, but there is a question mark over whether prolonged use might adversely affect the male reproductive system, possibly causing abnormalities in sperm. Now, researchers at the Centre for Reproduction, Endocrinology and Diabetes at King’s College London, UK, have studied the effects of PPAs on mouse and human sperm and found the first evidence that they stimulate the final stage of sperm maturation (capacitation) when sperm develop the ability to fertilize an egg. They then maintain the sperm in a potentially fertilizing state for longer, allowing them more time to reach an egg. Lynn Fraser, Professor of Reproductive Biology at King’s College London, believes that these preliminary findings might lead to over-the-counter products that couples could buy to boost their fertility during attempts at natural conception, as well as providing another way to help infertile couples during IVF treatment. “A number of PPAs related to the compounds we have studied are currently used in prescription and over-the-counter products, such as herbal dietary supplements used for weight loss and treatment of asthma,” said Prof Fraser. “We envisage the development of products that could be taken by individuals, either couples who might be having trouble conceiving or even those who have just decided to try to conceive, and who have no obvious problems. PPAs could also be used in IVF clinics as additives to sperm prepared for IVF or artificial insemination.” Dr Susan Adeoya-Osiguwa, a senior post-doctoral research associate at King’s College London, and Prof Fraser incubated mouse and human sperm with cathine and then tested the sperm to see what effect there had been on capacitation and on the acrosome reaction, which is the final phase of capacitation when the cap (acrosome) present in the sperm head ruptures and releases enzymes that enable the sperm to enter the egg. Mouse sperm were also tested for their responses to norephedrine. They found that cathine and norephedrine significantly stimulated capacitation in mouse sperm, while preventing the acrosome reaction. Cathine had a similar effect on human sperm. Cathine also stimulated the production of cAMP (cyclic adenosine monophosphate – a chemical messenger within cells) in uncapacitated sperm whilst inhibiting it in capacitated sperm. Prof Fraser explained: “We know that cAMP stimulates sperm motility and that it plays an important role in the phosphorylation of many proteins, some of which allow sperm to ‘switch on’ and acquire fertilizing potential. This research provides the first evidence that cathine can regulate the availability of cAMP, first stimulating and then inhibiting its production; and that inhibition of cAMP in capacitated cells appears to be the molecular basis for preventing the acrosome reaction. If sperm continue to produce cAMP in an unregulated manner, then some will undergo spontaneous acrosome reactions and so ‘burn out’ before reaching the egg. Even if they are still motile, they will not be able to fertilize an egg because the acrosome-intact sperm has special docking molecules that play a vital role when sperm contact unfertilised eggs. No docking molecules, no fertilization! “This study has shown for the first time that PPAs have a direct effect on sperm, initially stimulating the final maturing process and then preventing spontaneous acrosome reactions in mature sperm, thus maintaining them in a potentially fertilizing state*. When mouse sperm treated with cathine were mixed with unfertilised eggs, they were able to fertilise much more quickly than untreated control sperm; this indicates that PPAs do not interfere with the acrosome reaction induced in the fertilizing sperm by the egg. These preliminary data suggest that PPAs, at appropriate doses, might provide a new approach for enhancing natural fertility.” More research has to be carried out in live animals, administering PPAs and then evaluating effects on the ovaries, the testes and the sperm, before this work can be translated into treatments for people. For instance, Prof Fraser and Dr Adeoya-Osiguwa would like to confirm the findings of another study that showed that sperm production in rabbits was stimulated when the rabbits were fed a diet containing dried, ground khat leaves. However, she said: “The fact that other PPAs have already been approved for use in preparations taken by humans should make the development of any product easier than if one had to start from scratch; toxicity testing will have been carried out already for the related compounds.” Source http://www.news-medical.net/?id=2850 Quote Share this post Link to post Share on other sites
OG_Girl Posted June 29, 2004 So intresting!. I think a lot of people will try Kaat for...Ooops Salam Quote Share this post Link to post Share on other sites
Legend of Zu Posted June 30, 2004 I am Glad that OG girl has found out where she was born (qabri dahare) Cheers..ehm..ehm..salamaat Quote Share this post Link to post Share on other sites
OG_Girl Posted June 30, 2004 LoooL@Legend of Zu ,even my grand dad wasn't born there but is were my roots r ... my great grand dad and up were from there <---wink wink. I heard is nice place tho, I wouldn't mind to visit and drink some Camel milk Salam Quote Share this post Link to post Share on other sites
IL CAPO Posted July 3, 2004 Originally posted by OG_Girl: even my grand dad wasn't born there but is were my roots r ... my great grand dad and up were from there <---wink wink. I heard is nice place tho, I wouldn't mind to visit and drink some Camel milk Salam OG_Girl, come to Garissa with me if you want to drink a camel milk but watch out though as our camels only speak in Swahili;) Quote Share this post Link to post Share on other sites
