Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-1-26
pubmed:abstractText
The major limitation of drug resistance genotyping for human immunodeficiency virus remains the interpretation of the results. We evaluated the concordance in predicting therapy response between four different interpretation algorithms (Rega 6.3, HIVDB-08/04, ANRS [07/04], and VGI 8.0). Sequences were gathered through a worldwide effort to establish a database of non-B subtype sequences, and demographic and clinical information about the patients was gathered. The most concordant results were found for nonnucleoside reverse transcriptase (RT) inhibitors (93%), followed by protease inhibitors (84%) and nucleoside RT inhibitor (NRTIs) (76%). For therapy-naive patients, for nelfinavir, especially for subtypes C and G, the discordances were driven mainly by the protease (PRO) mutational pattern 82I/V + 63P + 36I/V for subtype C and 82I + 63P + 36I + 20I for subtype G. Subtype F displayed more discordances for ritonavir in untreated patients due to the combined presence of PRO 20R and 10I/V. In therapy-experienced patients, subtype G displayed a lot of discordances for saquinavir and indinavir due to mutational patterns involving PRO 90 M and 82I. Subtype F had more discordance for nelfinavir attributable to the presence of PRO 88S and 82A + 54V. For the NRTIs lamivudine and emtricitabine, CRF01_AE had more discordances than subtype B due to the presence of RT mutational patterns 65R + 115 M and 118I + 215Y, respectively. Overall, the different algorithms agreed well on the level of resistance scored, but some of the discordances could be attributed to specific (subtype-dependent) combinations of mutations. It is not yet known whether therapy response is subtype dependent, but the advice given to clinicians based on a genotypic interpretation algorithm differs according to the subtype.
pubmed:commentsCorrections
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pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0066-4804
pubmed:author
pubmed-author:AriyoshiKoyaK, pubmed-author:BouzasMaria BelenMB, pubmed-author:BrigidoLuis FernandoLF, pubmed-author:Brun-VézinetFrançoiseF, pubmed-author:CahnPedroP, pubmed-author:CamachoRicardoR, pubmed-author:CanePatriciaP, pubmed-author:CarvalhoAna PatriciaAP, pubmed-author:ClarkeJohnJ, pubmed-author:DeforcheKoenK, pubmed-author:GrossmanZehavaZ, pubmed-author:HarriganRichard PRP, pubmed-author:HolguinAfricaA, pubmed-author:KantorRamiR, pubmed-author:KatzensteinDavidD, pubmed-author:MorrisLynnL, pubmed-author:PhanuphakPraphanP, pubmed-author:PillayCandiceC, pubmed-author:PillayDeenanD, pubmed-author:ReidCarolineC, pubmed-author:RodriguesRosangelaR, pubmed-author:RudichHagitH, pubmed-author:SchapiroJonathan MJM, pubmed-author:ShaferRobert WRW, pubmed-author:SirivichayakulSuneeS, pubmed-author:SnoeckJokeJ, pubmed-author:SoaresMarcelo AMA, pubmed-author:SorianoVincentV, pubmed-author:SugiuraWataruW, pubmed-author:TanuriAmilcarA, pubmed-author:Van LaethemKristelK, pubmed-author:VandammeAnne-MiekeAM, pubmed-author:WeberJonathanJ, pubmed-author:WynhovenBrianB
pubmed:issnType
Print
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
694-701
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
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