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1.  Analysis of nevirapine (NVP) resistance in HIV-infected infants who received extended NVP or NVP/zidovudine prophylaxis 
AIDS (London, England)  2011;25(7):911-917.
In the PEPI-Malawi trial, infants received up to 14 weeks of extended nevirapine (NVP) or extended NVP plus zidovudine (NVP+ZDV) to prevent postnatal HIV transmission. We examined emergence and persistence of NVP resistance in HIV-infected infants who received these regimens prior to HIV diagnosis.
Infant plasma samples collected at 14 weeks of age were tested using the ViroSeq HIV Genotyping System and a sensitive point-mutation assay, LigAmp (for K103N and Y181C). Samples collected at 6 and 12 months of age were analyzed using LigAmp.
At 14 weeks of age, NVP resistance was detected in samples from 82 (75.9%) of 108 HIV-infected infants. While the frequency of NVP resistance detected by ViroSeq was lower in the extended NVP+ZDV arm than in the extended NVP arm, the difference was not statistically significant (38/55=69.1% vs. 44/53=83.0%, P=0.12). Similar results were obtained using LigAmp. Using LigAmp, the proportion of infants who still had detectable NVP resistance at 6 and 12 months was similar among infants in the two study arms (at 6 months: 17/20=85.0% for extended NVP vs. 21/26=80.8% for extended NVP+ZDV, P=1.00; at 12 months: 9/16=56.3% for extended NVP vs.10/13=76.9% for extended NVP+ZDV, P=0.43).
Infants exposed to extended NVP or extended NVP+ZDV had high rates of NVP resistance at 14 weeks of age, and resistant variants frequently persisted for 6–12 months. Frequency and persistence of NVP resistance did not differ significantly among infants who received extended NVP only vs. extended NVP+ZDV prophylaxis.
PMCID: PMC3261770  PMID: 21487249
HIV; nevirapine; resistance; infants; Malawi
2.  Information Gathering Over Time by Breast Cancer Patients 
Unlike many patients of the past, today's health-care users want to become more informed about their illnesses, and they want the most current information. The Internet has become a popular way to access current information, and since its introduction more people are turning to it to find medical information. Studies report that anywhere from 36% to 55% of the American population that use the Internet is using the Internet to research medical information, and these percentages have been rising. Cancer is 1 of the top 2 diseases about which people seek information on the Internet. Some studies have specifically asked whether breast cancer patients access the Internet for medical information; estimates range from 10% to 43% of breast cancer patients who use the Internet, with higher usage being associated with more education, greater income, and younger age.
To identify where breast cancer patients find medical information about their illness and to track changes over time, from active treatment to survivorship status.
Participants were 224 women who had been recently diagnosed with Stage I, Stage II, or Stage III breast cancer. Each woman was contacted approximately 8 months and 16 months after diagnosis and was asked about 10 different information sources they could have used to obtain information or support about their breast cancer.
Eight months after diagnosis, the top 3 information sources used by women were books (64%), the Internet (49%), and videos (41%). However, at follow-up (16 months after diagnosis), the most frequently cited information source was the Internet (40%), followed by books (33%), and the American Cancer Society (17%). We found that women continued to use the Internet as a means of gathering information even after their treatment ended. Significant unique predictors of Internet use were more years of formal education and younger ages. Cancer stage was not a significant predictor of Internet use.
Previous research has been mixed about the percentage of cancer patients who use the Internet to gather information about their illnesses. The results of the present study corroborate 2 other data sets of breast cancer patients, as just over 44% of the women reported using the Internet after diagnosis. Sixteen months after diagnosis, the percentage of women using the Internet dropped slightly, but other chief sources dropped sharply at that time. The Internet continues to play an important role for cancer survivors after medical treatment has ended, and health professionals can use this knowledge to provide their patients with Internet advice.
PMCID: PMC1550570  PMID: 14517106
Breast cancer; Internet; Internet use; Internet search

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