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Basic Characteristics of Mutations
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Mutation Site
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K60R |
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Mutation Site Sentence
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The frequencies of thymidine analogue associated mutations (TAMs) were 17 (43%) D67N, 16 (40%) T215FY, 8 (20%) M41L, 6 (15%) K60R, 6 (15%) L210W, 2 (5%) K219Q. |
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Mutation Level
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Amino acid level |
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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RT |
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Standardized Encoding Gene
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gag-pol:155348
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Genotype/Subtype
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HIV-1 |
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Viral Reference
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-
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Functional Impact and Mechanisms
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Disease
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HIV Infections
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Immune
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- |
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Target Gene
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CD4
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Clinical and Epidemiological Correlations
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Clinical Information
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Y |
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Treatment
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thymidine analogue associated mutations (TAMs) |
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Location
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Thailand |
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Literature Information
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PMID
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20030841
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Title
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Treatment outcomes and plasma level of ritonavir-boosted lopinavir monotherapy among HIV-infected patients who had NRTI and NNRTI failure
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Author
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Manosuthi W,Kiertiburanakul S,Amornnimit W,Prasithsirikul W,Thongyen S,Nilkamhang S,Ruxrungtham K,Sungkanuparph S
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Journal
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AIDS research and therapy
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Journal Info
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2009 Dec 23;6:30
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Abstract
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BACKGROUND: Different strategies of ritonavir-boosted lopinavir monotherapy have been explored; however, data regarding salvage therapy among HIV-infected patients who failed nucleoside reverse transcriptase inhibitor (NRTI) and non-nucleoside reverse transcriptase inhibitor (NNRTI) is still limited. METHODS: A prospective study was conducted among HIV-infected patients who failed NNRTI-based antiretroviral therapy with M184V, TAMs, and NNRTI mutations, and were naive to protease inhibitor. LPV/r at 400/100 mg and lamivudine 150 mg were given twice daily. CD4 and HIV-1 RNA were monitored at week 0, 12, 24, and 48. LPV Cmin was assayed for the first 14 patients using HPLC. RESULTS: There were 40 patients with a mean age of 37 years and 70% were male. Median (IQR) baseline CD4 was 123 (37-245) cells/mm(3) and median (IQR) HIV-1 RNA was 55,800 (9,670-100,000) copies/mL. By intend-to-treat analysis, 30 (75%) and 24 (60%) patients achieved HIV-1 RNA at <400 and <50 copies/mL, respectively. In as-treated analysis, the corresponding rates were 29 (83%) and 23 (67%), respectively. Low-level viral rebound was found in 6 (15%) patients at week 48. Medians CD4 at week 12, 24, 36 and 48 were 249, 283, 307, and 351 cells/mm(3) and significantly changed from baseline (all, P < 0.05). At 6 and 12 weeks, median (min-max) LPV Cmin was 6.52 (1.62-11.64) mg/L and 5.79 (0.75-16.31) mg/L, respectively. There were increments of mean total cholesterol and triglyceride at 48 weeks from baseline (P < 0.05). CONCLUSION: LPV/r monotherapy with recycled lamivudine can maintain virological suppression in a substantial proportion of patients failing NNRTI-based regimen and provides adequate plasma concentrations of LPV although the incidence of low-level viremia is relatively high.
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Sequence Data
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-
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