Objective: To survey the level and patterns of reverse transcriptase-based drug resistance and subtype distribution among antiretroviral-treated HIV-infected patients receiving only reverse transcriptase inhibitors in...Objective: To survey the level and patterns of reverse transcriptase-based drug resistance and subtype distribution among antiretroviral-treated HIV-infected patients receiving only reverse transcriptase inhibitors in Iran.Methods: A total of 25 samples of antiretroviral therapy experienced patients with no history of using protease inhibitors were collected. After RNA extraction, reverse transcriptase-nested PCR was performed. The final products were sequenced and then analysed for drug-resistant mutations and subtypes.Results: No drug resistant mutations were observed among the 25 subjects. The results showed the following subtypes among patients: CRF 35_AD(88%), CRF 28_BF(8%),and CRF 29_BF(4%).Conclusions: A significant increase in drug resistance has been noted in recentlyinfected patients worldwide. Subtype distributions are needed to perform properlydesigned surveillance studies to continuously monitor rates and patterns of transmitted drug resistance and subtypes to help guide therapeutic approaches and limit transmission of these variants.展开更多
A subset of HIV-1 infected patients undergoing antiretroviral treatment with HIV-1 protease inhibitors (PI’s) develops a syndrome called Lipodystrophy of HIV (LDHIV). LDHIV is characterized by loss of peripheral subc...A subset of HIV-1 infected patients undergoing antiretroviral treatment with HIV-1 protease inhibitors (PI’s) develops a syndrome called Lipodystrophy of HIV (LDHIV). LDHIV is characterized by loss of peripheral subcutaneous adipose tissue (face, limbs, buttocks), visceral fat accumulation, and in some cases, lipomatosis in the neck and dorsocervical area .We describe the clinical and imaging features of LDHIV in the head and neck in a series of 5 cases. There is a consistent pattern of fat accumulation in the dorsocervical region with paucity of fat in the face. This classic appearance should be recognized as potentially related to drug toxicity in the HIV infected population.展开更多
基金The study protocol was performed according to the Helsinki Declaration and approved by Tarbiat Modares University ethical committee(Reg No.1389-9).
文摘Objective: To survey the level and patterns of reverse transcriptase-based drug resistance and subtype distribution among antiretroviral-treated HIV-infected patients receiving only reverse transcriptase inhibitors in Iran.Methods: A total of 25 samples of antiretroviral therapy experienced patients with no history of using protease inhibitors were collected. After RNA extraction, reverse transcriptase-nested PCR was performed. The final products were sequenced and then analysed for drug-resistant mutations and subtypes.Results: No drug resistant mutations were observed among the 25 subjects. The results showed the following subtypes among patients: CRF 35_AD(88%), CRF 28_BF(8%),and CRF 29_BF(4%).Conclusions: A significant increase in drug resistance has been noted in recentlyinfected patients worldwide. Subtype distributions are needed to perform properlydesigned surveillance studies to continuously monitor rates and patterns of transmitted drug resistance and subtypes to help guide therapeutic approaches and limit transmission of these variants.
文摘A subset of HIV-1 infected patients undergoing antiretroviral treatment with HIV-1 protease inhibitors (PI’s) develops a syndrome called Lipodystrophy of HIV (LDHIV). LDHIV is characterized by loss of peripheral subcutaneous adipose tissue (face, limbs, buttocks), visceral fat accumulation, and in some cases, lipomatosis in the neck and dorsocervical area .We describe the clinical and imaging features of LDHIV in the head and neck in a series of 5 cases. There is a consistent pattern of fat accumulation in the dorsocervical region with paucity of fat in the face. This classic appearance should be recognized as potentially related to drug toxicity in the HIV infected population.
