Navigation Links
HIV Drug Might Spur Resistant Strains of Virus
Date:8/5/2008

Used during breast-feeding to prevent mom-to-baby transmission, nevirapine could have downside, study finds

TUESDAY, Aug. 5 (HealthDay News) -- The drug nevirapine -- widely used in developing countries to prevent transmission of HIV from mothers to babies -- persists in the breast milk and blood of mothers, a new Stanford University study finds.

That, in turn, could increase the risk that they and their children will develop drug-resistant strains of HIV, the researchers added.

The scientists looked at 32 HIV-positive pregnant women in Zimbabwe who received a single dose of nevirapine when they went into labor. The women had received no other treatment for their infection with HIV, the virus that causes AIDS.

Two weeks after delivery, more than half of the women still had detectable levels of the drug in their blood, and two-thirds had measurable levels of nevirapine in their breast milk. The longer the drug stays in the body, the more likely it is to develop drug-resistant mutations, the Stanford researchers said.

At the start of the study, none of the women had drug-resistant HIV strains. But two months after they gave birth, one-third of the women had drug-resistant strains in their blood, and 65 percent had drug-resistant strains in their breast milk as well, and could pass those strains to their babies during breast-feeding. Women with more advanced HIV were most likely to develop drug-resistant strains.

The study was expected to be presented Tuesday at the International AIDS Conference in Mexico City.

"In the short term, nevirapine is better than nothing. But in the long term, I'm concerned about conferring resistance. If you're talking about resistance on a broad scale, it could jeopardize future treatment for mothers and infants," principal investigator Dr. David Katzenstein, a professor of infectious diseases, said in a Stanford news release.

Nevirapine and another drug called zidovudine (AZT) play a major role in public health programs to prevent mother-to-child transmission of HIV in developing nations. Worldwide, the drugs have been used as preventive tools in nearly 900,000 women and infants.

Access to better antitretroviral treatment would reduce the risk of the development of drug-resistant HIV, said study first author Dr. Seble Kassaye, an instructor in infectious diseases.

"[The study] reinforces the need to treat these women with combination therapy, thereby providing better prevention for the infant, while providing better treatment for the mother. Public health efforts should continue to expand combination therapy so that mothers and babies aren't left vulnerable to drug resistance," Kassaye said in the news release.

More information

The American College of Obstetricians and Gynecologists has more about HIV and pregnancy.



-- Robert Preidt



SOURCE: Stanford University, news release, Aug. 5, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Fish Oil Might Help Relieve MS
2. HIV Drug Might Fight Cancer
3. High and mighty: first common height gene identified by researchers behind obesity gene finding
4. Vitamin C Plus Fat Might Spur Cancer
5. Mathematics might save you a trip to the ER
6. Veggies Might Ward Off Age-Linked Vision Woes
7. Rating your pain from 0 to 10 might not help your doctor
8. Blood Marker Might Help Spot Early Liver Cancer
9. Hushed Genes Might Mean Higher Lung Cancer Risk
10. Mathematics might save you a trip to the ER
11. More Prostate Cancers Might Be Prevented
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
HIV Drug Might Spur Resistant Strains of Virus
(Date:6/26/2016)... ... June 26, 2016 , ... Brent Kasmer, a legally blind and certified personal trainer is helping ... fitness app. The fitness app plans to fix the two major problems leading the fitness ... size fits all type program , They don’t eliminate all the reasons people ...
(Date:6/25/2016)... ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on June ... , brings up a new, often overlooked aspect of head lice: the parasite’s ability to ... is not a common occurrence, but a necessary one in the event that lice have ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... ... athletes and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as ... City area —Johnson is one of the first doctors to perform the treatment. ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic ... many turn to unhealthy avenues, such as drug or alcohol abuse, as a coping ... released tools for healthy coping following a traumatic event. , Trauma sufferers tend to ...
(Date:6/24/2016)... ... ... Global law firm Greenberg Traurig, P.A. announced that 20 Florida attorneys are recognized ... this recognition are considered among the top 2 percent of lawyers practicing within the ... this year’s Legal Elite Hall of Fame: Miami Shareholders Mark D. Bloom, Burt ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... ITASCA, Ill. , June 23, 2016  In a startling ... states are failing their residents by lacking a comprehensive, proven plan ... , a definitive ranking of how states are tackling the ... rating to only four states – Kentucky , ... and Vermont . Of the 28 failing states, ...
(Date:6/23/2016)... , June 23, 2016 Bracket , a ... its next generation clinical outcomes platform, Bracket eCOA (SM) ... on June 26 – 30, 2016 in Philadelphia ... electronic Clinical Outcome Assessment product of its kind to fully ... Bracket eCOA 6.0 is a flexible platform for ...
(Date:6/23/2016)... 23, 2016  Guerbet announced today that it has ... Horizon Award . One of 12 suppliers ... for its support of Premier members through exceptional local ... and commitment to lower costs. ... of our outstanding customer service from Premier," says ...
Breaking Medicine Technology: