CREATION IS A ETERNAL MYSTERY....AS TO KNOW CREATION FULLY ONE HAS TO KNOW THE CREATION bRHmH....
Posted by Vishva News Reporter on April 4, 2003

Human reproduction is probably one of the most complex process in the processes of universal creation....a human body has many of  the 33 karor (330 million) Devtaao present to empower all functions of the human body...a Devtaa is a shkti (a power of the creator bRHmH) which has a dedicated function in the creation, sustenance and cyclic recreation of bRHmaaND (universe) we live in and all the creations in the universe we live in..

...look at our DNA molecule....it has an estimated 3 billion codes in it...in a DNA molecule one cannot even see with naked eyes...and researchers think only 5 percent of this 3 billion codes is "useful"...and the rest 95 percent of the codes the researchers think is "junk::...think again ....as everyday researchers are finding what they did not know yesterday...so one day the 95 percent "junk" will mean something....veD says nothing in this universe is created for nothing by creator bRHmH...and each and every creation of word, thought and deed in animate and inanimate creation has a genesis in the eternal cyclic nature of creation .....(submitted by the PVAF volunteer SRii champaklal daajibhaai mistry of Edmonton, Alberta, Canada)  

Now in laboratory tests, the researchers have found that human sperm has a receptor, or chemical sensor, that causes the sperm to swim vigorously toward concentrations of a natural attractant....proves that sperm does respond to a chemical signal by swimming toward the source, which is the egg....the study by Zimmer and his co-authors is a significant advance in understanding how the sperm and egg find each other....

To have more knowledge of the above research, please click on the next line or on this web site MSNBC NEWS HEALTH



Researchers have shown that sperm, which are stained in this photo so their behavior can be observed, are able to find female eggs by following a chemical attractant.
A sperm can follow its ‘nose’
Sperm are able to detect attractive chemicals in eggs

ASSOCIATED PRESS
    WASHINGTON, March 27 —  Like a hummingbird following fragrance to a flower, the male sperm follows chemical attractants to find the female egg. Researchers now have identified a key part of the process and say the discovery could lead to a new form of contraception that does not depend on hormones, or to help for infertility.  
       
‘This is a landmark piece of work.The holy grail in reproductive biology has been to find the sperm attractant and to understand how it works.’
DR. DONNER F. BABCOCK
Researcher at the University of Washington in Seattle.
        IN LABORATORY TESTS, the researchers have found that human sperm has a receptor, or chemical sensor, that causes the sperm to swim vigorously toward concentrations of a natural attractant.
       The precise compound present in the human female reproductive tract has not been identified, the researchers said. But the new study, using a laboratory compound called bourgeonal, proves that sperm does respond to a chemical signal by swimming toward the source, said Richard K. Zimmer, a professor of biology at UCLA and a co-author of the study appearing Friday in the journal Science.
       Zimmer said the researchers also identified another compound, called undecanal, that shuts down the sperm receptor and keeps it from responding to an attractant.
       Although much more research must be done, Zimmer said the twin discoveries could lead to new drugs that could, depending on their use, overcome some fertility problems or inhibit conception.
       Some human reproduction researchers said the study by Zimmer and his co-authors is a significant advance in understanding how the sperm and egg find each other.
       
LANDMARK WORK
       “This is a landmark piece of work,” said Dr. Donner F. Babcock, a researcher at the University of Washington in Seattle. “The holy grail in reproductive biology has been to find the sperm attractant and to understand how it works.
       “This is the strongest evidence we have so far that the egg signals its location to the sperm and the sperm responds by swimming toward the egg,” said Babcock.
 
 
 
  Sign up for our health e-newsletter        In the study, Zimmer and his co-authors at UCLA and the Ruhr University Bochum in Germany demonstrate that the surface of human sperm has a receptor, called hOR17-4, that causes the sperm to navigate in a specific direction when it detects a concentration of bourgeonal.
       It long has been known that there are chemical signals between the female egg and the male sperm that help the two to find each other. But the new study is the first to demonstrate that the sperm will respond in a predictable and controllable way to a chemical signal.
       
EGG SUBSTANCE UNKNOWN
       Now, Zimmer said, the goal is to find the precise compound provided by the egg that activates the sperm’s directional swimming.
 
 

 
 
       Zimmer said government policies and rules that limit federally funded research using human eggs is hampering the search for the natural human sperm attractant thought to be secreted by the female egg.
       Once such an attractant is found, he said, researchers should be able to develop techniques that would inhibit conception without the use of hormones.
       
RESEARCH IMPLICATIONS
       Zimmer said it may be possible to develop a compound, inserted into the female reproductive tract, that would confuse the directional signals the sperm needs to find and fertilize the egg.
       “You may not stop fertilization completely, but what this would do is discourage it or inhibit as much as possible,” he said.
       Babcock said understanding how sperm and egg find each other might lead to solutions for infertility in some couples.
       “A large number of human infertility problems are not understood,” he said. “If we know for certain that this sperm receptor plays a role, then it would be possible to develop tests to determine if the egg is making the attractant or if the sperm has the receptor.”

 

 

 
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       Couples who are infertile because of poor signaling between sperm and egg could then be identified and treated, he said.
       Marc Spehr of Ruhr University, a co-author of the study, said in a statement that bourgeonal may have a role in fertility clinics by helping to identify healthy, high-quality sperm cells that would be most successful in fertilizing the egg.
       
       © 2003 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
       



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