Gol Mohammadi, R, Tabaraei, A, Abbasi, A, Khademi, N, Mahdavian, B, Javid, N, Kaleji, H, Kamasi,a, Bazoori, M, Moradi, A,
Volume 9, Issue 1 (March, April[PERSIAN] 2015)
Abstract
Abstract
Background and Objective: Highly Active Antiretroviral Therapy (HAART) can effectively prevent the progression of HIV-1 replication and increase life expectancy. There are numerous causes of treatment failure and the leading one is drug resistance. Thus, we aimed to determine the HIV RT gene drug resistance mutations in patients treated with antiretroviral medications.
Material and Methods: In this cross - sectional study, venous blood was taken from 130 HIV-positive patients treated with antiretroviral medications. In order to determine drug resistance mutations, RT-PCR and PCR steps were performed using RT gene specific primers. Subtypes and mutations in the virus genome were determined using the Stanford HIV drug resistance sequence database.
Results: In 122 treating patients, most of the major mutations were associated with nucleoside and non-nucleoside drugs. subtype A in 66.4%, subtype D in 26.2% and subtype B in 7.4% of the participants were reported. They were resistant to Nucleoside RT Inhibitor drugs (23.7%) and Non-Nucleoside RT Inhibitor drugs(30.3%). The highest were related to Nevirapine (21.3%) and Efavirenz (19.7%) and the lowest to both Tenofovir and Zidovudine (91.5%).
Conclusion: The use of two nucleoside RT inhibitor drugs combined with one protease inhibitor drug could be effective in the treatment of HAART.
Key words: HIV, Nucleoside RT Inhibitor, Non- Nucleoside RT Inhibitor
Kelishadi, M, Kelishadi, M. (md), Moradi, A, Bazouri, M, Tabaraei, A,
Volume 9, Issue 3 (Jul,Aug2015[PERSIAN] 2015)
Abstract
Abstract
Background and Objective: Ophthalmic pterygium is a potentially vision-threatening lesion of unknown etiology that often extends on the corneal surface and has a worldwide distribution. Despite various studies, the pathogenesis of pterygium remains unclear and the involvement of human papillomavirus is controversial. We aimed to investigate the involvement of papillomavirus in pterygium formation.
Material and Methods: This case-control study was conducted on 50 tissue specimens of pterygium from the patients who had pterygium surgery as the case group and 10 conjunctival biopsy specimens of individuals without pterygium including the patients with cataract surgery, as controls. The evidence of papillomavirus infection was tested by polymerase chain reaction (PCR).
Results: All samples, case and control, were not positive for papillomavirus. Both groups were positive for beta-globulin gene used to check the quality of extracted DNA.
Conclusion: In this study, due to the absence of papillomavirus in the context of Pterygium it seems that other factors are involved in causing the disease.
Keywords: Pterygium; Human Papilloma Virus; PCR.
