Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
December 14, Thursday 2017 5:51 AM       

       HEADLINES: Ockhi calamity: Three more bodies spotted                                              Car rams Metro Rail pillar, Three die                                              Heavy rain, flood, landslide again in Idukki high range                                              Pattoor land deal: Jacob Thomas will be summoned                                              Defence counsel wants Central Agency to probe Jisha murder case                                              SC rebukes UP govt over construction of shelter houses for homeless                                              PM Modi to commission naval submarine INS Kalvari tomorrow                                              Hope no Kejriwal will emerge from my movement again: Anna                                              Air Fire Rescue Task Force set up to ensure safety in Tokyo                                              India hosts 4th India-Australia-Japan trilateral meeting                                              US forces destroyed $80m of Taliban's drug money in Afghanistan                                              Williams drops big hint at Australia Open return                                              Mohali Test: Rohit Sharma's double ton helps India level series                                              Kaumudi Facebook
       SCI&TECH Next Article: Mysterious 'Higgs Bison' species identified  
       Male birth control shots may lower pregnancy odds: study
 
         Posted on :19:04:16 Oct 28, 2016
   
A A
       Last edited on:19:04:16 Oct 28, 2016
         Tags: Male birth control, lower pregnancy odds, stu
 
GENEVA: An experimental birth control vaccine for men can effectively prevent pregnancy in their female partners by lowering sperm count, scientists including those from India have found. Researchers are working to perfect the combination of hormonal contraceptives to reduce the risk of mild to moderate side effects, including depression and other mood disorders.
 
"The study found it is possible to have a hormonal contraceptive for men that reduces the risk of unplanned pregnancies in the partners of men who use it," said Mario Philip Reyes Festin, from the World Health Organisation (WHO) in Switzerland. "Our findings confirmed the efficacy of this contraceptive method previously seen in small studies," said Festin.
 
Researchers, including Man Mohan Misro of the National Institute of Health and Family Welfare in New Delhi, tested the safety and effectiveness of injectable contraceptives in 320 healthy men ages 18 to 45.
 
The participants had all been in monogamous relationships with female partners between the ages of 18 and 38 for at least a year. The men underwent testing to ensure they had a normal sperm count at the start of the study.
 
The men received injections of 200 milligrams of a long-acting progestogen called norethisterone enanthate (NET-EN) and 1,000 milligrams of a long-acting androgen called testosterone undecanoate (TU) for up to 26 weeks to suppress their sperm counts.
 
Healthcare professionals gave the men two injections every eight weeks. Participants initially provided semen samples after eight and 12 weeks in the suppression phase and then every 2 weeks until they met the criteria for the next phase.
 
During this time, the couples were instructed to use other non-hormonal birth control methods. Once a participant's sperm count was lowered to less than one million/ml in two consecutive tests, the couple was asked to rely on the injections for birth control.
 
During this period known as the efficacy phase of the study, the men continued to receive injections every eight weeks for up to 56 weeks. Participants provided semen samples every eight weeks to ensure their sperm counts stayed low. Once the participants stopped receiving the injections, they were monitored to see how quickly their sperm counts recovered.
 
The hormones were effective in reducing the sperm count to one million/ml or less within 24 weeks in 274 of the participants. The contraceptive method was effective in nearly 96 per cent of continuing users. Only four pregnancies occurred among the men's partners during the efficacy phase of the study.
 
Researchers stopped enrolling new participants in the study in 2011 due to the rate of adverse events, particularly depression and other mood disorders, reported by the participants. The men reported side effects including injection site pain, muscle pain, increased libido and acne. The study was published in the Journal of Clinical Endocrinology and Metabolism.
A A
       SCI&TECH
Next Article: Mysterious 'Higgs Bison' species identified
 
 
SCI&TECH HEADLINES
Google brings a host of new features on Pixel 2  
Scientists turn beer into suitable petrol  
Space gives a sense of humbleness: NASA astronaut  
Researchers discover genes to prolong human life  
Google announces best apps of 2017  
This technology can help to reduce accidents on icy roads  
Yepzon launches in India; promises smart safety solutions  
Soon, you'll be able to control diabetes with your phone  
Turning bacteria into 'world's smallest tape recorders'  
How breastmilk protects babies from food allergy decoded  
Stars among the oldest in our galaxy discovered  
Apple delays release of smart speaker - HomePod  
Owning a dog may add years to your life  
'Textisms' actually add meaning to written words  
Sugar may heal wounds, says study  
Heart-stopping sex? It's rare  
Over 1.3 lakh Indians 'book ticket' to Mars  
China all set to make first contact with aliens  
Greenland Ice sheet could be losing mass, says study  
'Flying taxis' could be a thing by 2020  
When art comes to the rescue of depressed patients  
Here's a mechanism that can help you get rid of bad memories  
2017 ozone hole smallest since 1988: NASA  
Marijuana can dull the brain in some HIV patients  
We use lesser brainpower than thought  
 
Does Jisha murder case convict Ameerul Islam deserve death sentence?
Yes
 
No
 
No opinion
 
 
 
Home Kerala India World Business Sports Sci&Tech Education Automobile CityNews Movies Environment Letters 
© Copyright keralakaumudi Online 2011  |  Reproduction in whole or in part without written permission is prohibited.
Head Office Address: Kaumudi Buildings, Pettah P.O, Trivandrum - 695024, India.
Online queries talk to Deepu Sasidharan, + 91 98472 38959 or Email deepu[at]kaumudi.com
Customer Service -Advertisement Disclaimer Statement   |  Copyright Policy