Navigation Links
Research Suggests Penis Might Produce Testosterone

By Alan Mozes
HealthDay Reporter

FRIDAY, Oct. 21 (HealthDay News) -- Textbooks have long listed the centers of male hormone production as the testes and adrenal glands. But those textbooks might need revising if the results of a new study, showing hormone production in the penis itself, turn out to be true.

The observation stems from analyses in both mice and human tissue, revealing that proteins key to the production of hormones such as testosterone are active in penile tissue.

"We're talking about the expression of certain enzymes that are absolutely crucial to the production of male hormones," explained study lead author Dr. Kathleen Hwang, currently an assistant professor of surgery/urology at Brown University in Providence, RI. "And what we've established is that there are receptors in penile tissue, which has never been demonstrated before."

"So while this is still work in its infancy," Hwang cautioned, "this does suggest that there are other tissues in the male genitalia tract that are actually involved in hormone production."

Hwang (who conducted her research while a fellow in the department of urology at the Baylor College of Medicine, Houston) was to present the findings this week at the American Society for Reproductive Medicine (ASRM) annual meeting in Orlando, Fla.

The authors note that male hormone production has not exactly been considered a medical riddle. Researchers have long cited the adrenal glands and testes as the twin engines driving androgen (male hormone) production.

But Hwang and her team wondered whether other organs or tissues might be involved.

To find out, they first harvested testes, prostate, penile and adrenal gland tissue from two 3-month old mice, and subjected them to high-tech microscopic analyses.

Later, human prostate and penile tissue samples were also analyzed.

The results: three key proteins known to be involved in androgen production were, as expected, found to be active in both the mouse and human adrenal and testes tissue.

But unexpectedly, the same protein activity was also found in both prostate gland and penile tissue.

"Now, we know that whatever is being produced in these areas is not sufficient to keep a man's testosterone levels at normal levels," noted Hwang. "But we think these tissues could somehow be major components in the overall male hormone production process."

Hwang stressed that "this was a simple observational and early study. But it's actually very exciting, and we are continuing to explore how this all comes together."

Dr. Edward Kim, president of the Society for Male Reproduction and Urology at the University of Tennessee's graduate school of medicine in Knoxville, said the finding is worth investigating further.

"What's important about this is that it challenges our current ways of thinking about testosterone production," he said. "It goes up against our present concept that testosterone production is entirely within the realm of the testes and adrenal glands. And this may be an avenue for further research and investigation."

"But clearly, much more research with humans is required to get a real handle on what's going on," he added.

More information

For more on male hormones, head to Tulane University.

SOURCES: Kathleen Hwang, M.D., (current) assistant professor of surgery/urology, Brown University, Providence, Rhode Island, (during study) fellow, Scott department of urology, Baylor College of Medicine, Houston; Edward Kim, M.D., president, Society for Male Reproduction and Urology, Graduate School of Medicine, University of Tennessee, Knoxville; Oct. 19, 2011, presentation, annual meeting, American Society for Reproductive Medicine (ASRM), Orlando, Fla.

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Embedded Mobile & M2M Device revenues to Rise to Almost $19 Billion Globally by 2014, Says Juniper Research
2. 2010 HSR Impact Award recognizes surgical safety research
3. MSU launches first anti-counterfeiting research program
4. Researchers map all the fragile sites of the yeast Saccharomyces cerevisiaes genome
5. UH Case Medical Center researchers publish promising findings for advanced cervical cancer
6. Researchers discover new way to kill pediatric brain tumors
7. Family Research Council: Planned Parenthood Report Oversexualizes Ten-Year-Olds, Undermines Parental Authority
8. Michael J. Fox Foundation Awards $1 Million to Drive Critical New Research Tools and Technologies in Parkinsons Drug Development
9. Luth Researchs IndicatorEDG(TM) Study Finds Americans Hopes of Achieving Their Dreams Are Fading
10. International Diabetes Federation awards $2 million to 9 global diabetes research projects
11. Gladstones Robert Mahley to receive Research!America advocacy award
Post Your Comments:
Related Image:
Research Suggests Penis Might Produce Testosterone
(Date:10/13/2015)... ... ... The American Institutes for Research ( AIR ) developed a collection of ... experienced sexual assault and other trauma. The toolkit, funded by the U.S. Department of ... Act's 21st anniversary. , AIR developed the Safe Place toolkit ...
(Date:10/13/2015)... ... , ... Vision Group Holdings, the largest LASIK provider in North America, announced ... LASIK Vision Institute and TLC Laser Eye Centers, Vision Group Holdings has performed more ... , Global Laser Vision will continue to operate in San Diego as it has ...
(Date:10/13/2015)... ... October 13, 2015 , ... Sir Grout of Greater ... the local Boston chapter of Ronald McDonald House Charities® (RMHC®). This donation was made ... Sir Grout of Greater Boston since its inception. , “We believe strongly in the ...
(Date:10/13/2015)... ... October 13, 2015 , ... CURE Media ... today announced a new partnership with the International Waldenstrom’s Macroglobulinemia Foundation (IWMF) ... non-Hodgkin’s lymphoma, their families and physicians. , “Waldenstrom’s Macroglobulinemia is a so-called ...
(Date:10/13/2015)... ... October 13, 2015 , ... "My friend's son suffers from ... his infected cheeks," said an inventor from Platteville, Colo. "I came up with this ... He developed the UNTOUCHABLE to prevent a child from rubbing or scratching his or ...
Breaking Medicine News(10 mins):
(Date:10/13/2015)... 2015  SRI International has been awarded a ... five years by the National Institute of Allergy ... Institutes of Health, for the development of products ... of radiation exposure. Under this multi-year contract, ... will provide services, facilities, expertise and capabilities to ...
(Date:10/13/2015)... 2015 ) ... & European markets for Meniscal Repair - 16 ... --> ) has announced the addition ... Meniscal Repair - 16 Countries (2010-2021)" report ... Markets ( ) has announced the addition ...
(Date:10/13/2015)... 2015  Graduate students across the country, with ... will soon have the opportunity to learn about ... drug discovery and development process. Eli Lilly and ... 10 leaders from academic institutions to create an ... of Drug Development."  Lilly will formally unveil the ...
Breaking Medicine Technology: