52 research outputs found
Determining the composition of gold nanoparticles: a compilation of shapes, sizes, and calculations using geometric considerations
Impact of atazanavir-based HAART regimen on the carotid intima-media thickness of HIV-infected persons: a comparative prospective cohort.
International audienceOBJECTIVE: With the advent of highly active antiretroviral therapy regimens, it is crucial to consider their long-term benefits to risk ratios among HIV-infected persons. The impact of protease inhibitors on the cardiovascular risk is controversial. DESIGN: This observational cohort was designed to investigate the cardiovascular impact of boosted atazanavir (ATV/r), a protease inhibitor that does not provide major dyslipidemia or insulin resistance. SETTING: This study was carried out at the University Hospital of Brest (France). PATIENTS: Among the 229 HIV-infected persons of the cohort, 33 cases treated by ATV/r-containing regimen since less than 6 months were compared to 99 age-matched and sex-matched ATV/r naive controls. INTERVENTION: None. MAIN OUTCOME MEASURE: The main outcome measure was carotid intima-media thickness (cIMT) at the baseline, 6, 12, and 18 months. RESULTS: Although the cIMT was not different at inclusion (0.633 ± 0.05 vs. 0.666 ± 0.09, P = 0.07), the cIMT course significantly decreased (P = 0.018) in cases at 18 months. The differences remained significant even after adjustment on the variables that differed between cases and controls (P < 0.1) at inclusion (high-density lipoprotein cholesterol, cardiovascular family history) and the cumulated and current exposure to the nucleosidic reverse transcriptase inhibitor, nonnucleosidic reverse transcriptase inhibitor, and protease inhibitor class. CONCLUSION: Despite similar HIV and cardiovascular characteristics at baseline, cIMT decreased after 6 months of follow-up among the patients exposed to ATV/r, even after adjustment for the exposure to the three antiretroviral classes. Considering the shortcomings of this study, especially the absence of randomization and the heterogeneity of the control group, the benefit of ATV/r treatment in patients with high cardiovascular should be confirmed by randomized trials
Charge virale plasmatique inférieure au seuil de quantification à la découverte de l’infection VIH : quelles étiologies ?
Poolage des prélèvements pharyngés, anaux et urinaires pour la détection de Chlamydia trachomatis (Ct), Neisseria gonorrhoeae (Ng) et Mycoplasma genitalium (Mg) par PCR multiplex chez les HSH : étude multicentrique ISTPOOL
Effectiveness and safety of saquinavir/ritonavir in HIV-infected pregnant women: INEMA cohort.
International audienceOBJECTIVE: The authors had for aim to describe the effectiveness and the safety of a saquinavir/ritonavir (SQV/r) regimen, 1000/100mg twice daily, in HIV-infected pregnant patients. PATIENTS AND METHOD: We made a prospective and observational study of HIV positive female patients beginning or going on SQV/r antiretroviral treatment (ART) during pregnancy. RESULTS: Sixty-two patients were enrolled from July 2007 to June 2009 in 10 infectious diseases units in France. Thirty-six women (group 1) were ART naive on inclusion, 20 (group 2) had been previously treated and then switched to SQV/r, six (group 3) were treated with SQV/r before pregnancy. 58 patients delivered while on SQV/r regimen after a median pregnancy duration of 39 WA. Eighty percent had a viral load below 50 copies/mL and 93% below 400 copies/mL: respectively 77% and 93.5% in group 1, 83% and 89% in group 2, 83% and 100% in group 3. The median SQV minimum concentrations (C(min)) measured at the third trimester and at delivery were adequate, respectively 0.91 mg/L and 0.86 mg/L. Most women (52%) had a vaginal delivery; 12 (21%) had an elective caesarean section, for obstetrics factors in eight cases. None of the newborns were HIV-infected at 6 months of age (n = 59, one death at day 3). Only one severe adverse event occurred due to saquinavir (maternal grade 3 hepatotoxicity). CONCLUSION: SQV/r 1000/100mg twice daily seems to be effective and safe in HIV-infected pregnant women with adequate saquinavir C(min)
Poolage des prélèvements pharyngés, anaux et urinaires pour la détection de Chlamydia trachomatis (Ct), Neisseria gonorrhoeae (Ng) et Mycoplasma genitalium (Mg) par PCR multiplex chez les HSH : étude multicentrique ISTPOOL
A simple assay for direct colorimetric detection of prostatic acid phosphatase (PAP) at fg levels using biphosphonated loaded PEGylated gold nanoparticles
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