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Low rate of DRMs, vertical transmission of HIV-1 among women treated with Option B+

14 Jul 2017
The 2012 WHO guidelines recommend the initiation of lifelong antiretroviral combination therapy for all pregnant HIV-1 positive women in resource-limited settings regardless of their CD4 count or clinical stage to prevent mother-to-child transmission of HIV-1 (Option B+). There has been some concern that such programmes may encourage the development of drug resistance mutations (DRMs), but a recent study has shown that the risk of drug resistance is low.

A total of 124 HIV-1 positive pregnant women in Fort Portal, Uganda, were enrolled in the study. Blood samples were collected at their first visit to the antenatal clinic before initiating Option B+ as well as at 6 weeks and 6, 12, and 18 months postpartum. Viral load was determined by real-time RT-PCR and analyses were also made of vertical transmission. A total of 49 women (39.5 percent) were also included in a DRM analysis. Virological failure was defined as >1,000 copies HIV-1 RNA/mL.

At 1-year postpartum, three women were found to have virological failure, and seven were affected by the 18-month time point. No vertical transmission of HIV-1 was noted among the 49 mother-infant pairs included in the DRM analysis. However, three women had developed DRMs, and two had dual-class resistance against all recommended first-line drugs.

The researchers suggested that their findings of a low DRM selection rate support the continued adoption of the Option B+ for preventing mother-to-child transmission of HIV-1.
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Most Read Articles
4 days ago
Greater exposure to total volatile organic compounds (TVOCs) appears to have an adverse effect on early postnatal growth, according to a study.
6 days ago
Functional capacity (FC) in active postmenopausal women depends more on lower limb muscle strength than on abdominal obesity, suggesting that those with abdominal obesity may not necessarily have a reduced FC as long as lower limb muscle strength is preserved, according to a study.
Robert Chin, 5 days ago
This review article outlines the prevalence of nausea and vomiting of pregnancy (NVP) and hyperemesis gravidarum (HG), definition of NVP and HG, aetiology, risk factors, complications of HG, recommended investigations, primary care management, hospital and ambulatory daycare, therapeutic management of HG supported by good clinical evidence, discharge planning, and importance of the multidisciplinary team to provide high quality care in patients with NVP and HG.
16 Oct 2014

Korean red ginseng (KRG), which is processed from raw ginseng, improves the quality of life of women by ameliorating oxidative stress induced by exposure to endocrine-disrupting bisphenol A (BPA), according to a recent study.