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Chini M, Tsoupras AB, Mangafas N, Tsogas N, Papakonstantinou VD, Fragopoulou E, Antonopoulou S, Gargalianos P, Demopoulos CA, Lazanas MC. Effects of highly active antiretroviral therapy on platelet activating factor metabolism in naive HIV-infected patients: ii) study of the abacavir/lamivudine/efavirenz HAART regimen. Int J Immunopathol Pharmacol 2012; 25:247-58. [PMID: 22507337 DOI: 10.1177/039463201202500127] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Human Immunodeficiency Virus (HIV)-infected patients are at increased risk for cardiovascular diseases partly due to chronic inflammation. Some antiretroviral drugs and Highly Active Anti-Retroviral Therapy (HAART) regimens seem to be related and amplify this increased risk, especially the ones containing abacavir. Platelet-Activating-Factor (PAF) is a potent inflammatory mediator that is implicated in both cardiovascular diseases and HIV-related manifestations. Our objective is to study the in vivo effect of the abacavir/lamivudine/efavirenz first-line HAART regimen on PAF metabolism in HIV-infected patients. The specific activities of PAF basic biosynthetic enzymes in leukocytes and platelets, PAF-cholinephosphotransferase (PAF-CPT) and lyso-PAF-acetyltransferase (Lyso-PAF-AT), but also those of PAF-basic catabolic enzymes, PAF acetylhydrolase (PAF-AH) in leukocytes and platelets and Lipoprotein-associated-Phospholipase-A2 (LpPLA2) in plasma, were measured in blood samples of 10 asymptomatic naïve male HIV-infected patients just before and after 1, 3 and 6 months of treatment. CD4 cell counts, viral load and several biochemical markers were also measured in the same blood samples of these patients. The repeated ANOVA measures and the Pearson r criterion were used for studying statistical differences and correlations - partial correlations respectively. Even though viral load was decreased and CD4 cell counts were beneficially increased after treatment with the abacavir/lamivudine/efavirenz regimen, the main enzyme of the remodelling PAF-synthesis that is implicated in pro-atherogenic inflammatory procedures, Lyso-PAF-AT activity, was increased at 3 months of treatment in both leukocytes and platelets, while the main enzyme of PAF-degradation, PAF-AH, was increased as a response only in leukocytes at the 3rd month. Although the abacavir/lamivudine/efavirenz HAART regimen exhibits very efficient antiretroviral activities, on the other hand it induces an in vivo transient increase in the inflammation-related remodeling PAF-biosynthetic pathway. This finding supports the hypothesis of inflammation-mediated increased cardiovascular risk in HIV-infected patients during the first months of abacavir-containing HAART.
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Affiliation(s)
- M Chini
- 3rd Internal Medicine Department-Infectious Diseases Unit, Red Cross General Hospital, Athens, Greece
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Tsoupras A, Chini M, Tsogas N, Mangafas N, Demopoulos C, Lazanas M. In Vivo Effects of a Ginkgo Biloba Extract on Platelet Activating Factor Metabolism in Two Asymptomatic Hiv-Infected Patients. EUR J INFLAMM 2011. [DOI: 10.1177/1721727x1100900204] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ginkgo biloba products seem to protect from several pathological conditions, including HIV manifestations, where Platelet Activating Factor (PAF) is implicated. In the present study, we examined for the first time the in vivo effects of a standardized formulation of Ginkgo biloba extract (150 mg daily, per os) on PAF metabolism in blood cells and plasma of two male, asymptomatic HIV-infected patients, not receiving antiretroviral treatment, during a 9-month period. These patients differed at baseline in terms of duration of HIV infection, viral load levels, CD4 cell counts and Highly Active Antiretroviral Therapy (HAART) experience. In the first patient with early HIV infection, after an initial transient increase, a return of both plasma viral load and PAF biosynthetic enzyme activities in leukocytes to their baseline levels was observed during Ginkgo biloba use. As a result PAF degradation also remained low in this patient. The second patient with late but not advanced HIV infection, had higher levels of viral load and a lower CD4 cell count at baseline. The use of 150 mg of a Ginkgo biloba extract was probably insufficient to induce PAF degradation and/or to suppress the induction of PAF biosynthesis observed. At the same time, the initial high levels of viral load were further increased and CD4 cell counts were finally decreased during the study. The observed differences in PAF metabolism during Ginkgo use seem to be related to the initial heterogeneity of these patients. It appears that in some HIV-infected patients inhibition of the PAF/PAF-receptor system, along with a decrease/down-regulation of PAF-biosynthesis, illustrates a new potential role for Ginkgo biloba compounds in the treatment of HIV infection and its manifestations. However, more tests on a larger number of patients are needed in order to support these preliminary observations.
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Affiliation(s)
- A.B. Tsoupras
- Faculty of Chemistry, National and Kapodistrian University of Athens, Athens
| | - M. Chini
- 3rd Internal Medicine Department-Infectious Diseases Unit, Red Cross General Hospital, Athens, Greece
| | - N. Tsogas
- 3rd Internal Medicine Department-Infectious Diseases Unit, Red Cross General Hospital, Athens, Greece
| | - N. Mangafas
- 3rd Internal Medicine Department-Infectious Diseases Unit, Red Cross General Hospital, Athens, Greece
| | - C.A. Demopoulos
- Faculty of Chemistry, National and Kapodistrian University of Athens, Athens
| | - M.C. Lazanas
- 3rd Internal Medicine Department-Infectious Diseases Unit, Red Cross General Hospital, Athens, Greece
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van Leth F, Conway B, Laplumé H, Martin D, Fisher M, Jelaska A, Wit FW, Lange JMA, Laplumé H, Lasala MB, Losso MH, Bogdanowicz E, Lattes R, Krolewiecki A, Zala C, Orcese C, Terlizzi S, Duran A, Ebensrteijn J, Bloch M, Russell O, Russell DB, Roth NR, Eu B, Austin D, Gowers A, Quan D, Demonty J, Peleman R, Vandercam B, Vogelaers D, van der Gucht B, van Wanzeele F, Moutschen MM, Badaro R, Grinsztejn B, Schechter M, Uip D, Netto EN, Coelho SS, Badaró F, Pilotto JH, Schubach A, Barros ML, Leite OHM, Kiffer CRV, Wunsch CT, Nunes D, Catalani A, de Cassia Alves LR, Dossin TJ, D'Alló de Oliveira MT, Martini S, Conway B, de Wet JJ, Montaner JSG, Murphy C, Woodfall B, Sestak P, Phillips P, Montessori V, Harris M, Tesiorowski A, Willoughby B, Voigt R, Farley J, Reynolds R, Devlaming S, Livrozet JM, Rozenbaum W, Sereni D, Valantin MA, Lascoux C, Milpied B, Brunet C, Billaud E, Huart A, Reliquet V, Charonnat MF, Sicot M, Esnault JL, Slama L, Staszewski S, Bickel M, Lazanas MK, Stavrianeas N, Mangafas N, Zagoreos I, Kourkounti S, Paparizos V, Botsi C, Clarke S, Brannigan E, Boyle N, Chiriani A, Leoncini F, Montella F, Francesco L, Ambu S, Farese A, Gargiulo M, Di Sora F, Lavria F, Folgori F, Beniowski M, Boron Kaczmarska A, Halota W, Prokopowicz D, Bander DB, Leszuzyszyn-Pynka MLP, Wnuk AW, Bakowska E, Pulik P, Flisiak R, Wiercinska-Drapalo A, Mularska E, Witor A, Antunes F, Sarmento RSE, Doroana M, Horta AA, Vasconcelos O, Andrews SM, Huisamen CB, Johnson D, Martin O, Bekker LG, Maartens G, Wilson D, Visagie CJ, David NJ, Rattley M, Nettleship E, Martin DJ, Keyser V, Moraites TM, Moorhouse MA, Pitt JA, Orrell CJ, Bester C, Parboosing R, Moodley P, Gathiram V, Woolf D, Bernasconi E, Magenta L, Cardiello P, Kroon E, Ungsedhapand C, Fisher M, Wilkins EGL, Stockwell E, Day J, Daintith RS, Perry N, Timaeus C, Intosh-Roffet JM, Powell A, Youle M, Tyrer M, Madge S, Drinkwater A, Cuthbertson Z, Carroll A, Becker S, Katner H, Rimland D, Saag MS, Thompson M, Witt M, Aguilar MM, LaVoy A, Illeman M, Guerrero M, Gatell J, Belsey E, Hirschel B, Potarca A, Cronenberg M, Kreekel L, Meester R, Khodabaks J, Botma HJ, Esrhir N, Farida I, Feenstra M, Jansen K, Klotz A, Mulder M, Ruiter G, Bass CB, Pluymers E, de Vlegelaer E, Leeneman (VCL) R, Carlier H, van Steenberge E, Hall D. Quality of Life in Patients Treated with First-Line Antiretroviral Therapy Containing Nevirapine And/Or Efavirenz. Antivir Ther 2004. [DOI: 10.1177/135965350400900512] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective To assess whether differences in safety profiles between nevirapine (NVP) and efavirenz (EFV), as observed in the 2NN study, translated into differences in ‘health related quality of life’ (HRQoL). Design A sub-study of the 2NN study, with antiretro-viral-naive patients randomly allocated to NVP (once or twice daily), EFV or NVP+EFV, in addition to stavudine and lamivudine. Methods Comparing differences in changes of HRQoL over 48 weeks as measured with the Medical Outcomes Study HIV Health Survey (MOS-HIV) questionnaire, using analysis of variance. Results The 2NN study enrolled 1216 patients. No validated questionnaires were available for 244 patients, and 55 patients had no HRQoL data at all, leaving 917 patients eligible for this sub-study. A total of 471 (51%) had HRQoL measurements both at baseline and week 48. The majority (69%) of patients without HRQoL measurements did, however, complete the study. The change in the physical health score (PHS) was 3.9 for NVP, 3.4 for EFV and 2.4 for NVP+EFV ( P=0.712). For the mental health score (MHS) these values were 6.1, 7.0 and 3.9, respectively ( P=0.098). A baseline plasma HIV-1 RNA concentration (pVL) ≥100 000 copies/ml and a decline in pVL (per log10) were independently associated with an increase of PHS. An increase of MHS was only associated with pVL decline. Patients experiencing an adverse event during follow-up had a comparable change in PHS but a significantly smaller change in MHS, compared with those without an adverse event. Conclusions First-line ART containing NVP and/or EFV leads to an improvement in HRQoL. The gain in HRQoL was similar for NVP and EFV, but slightly lower for the combination of these drugs.
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Affiliation(s)
| | - Frank van Leth
- International Antiviral Therapy Evaluation Center (IATEC); Department of Internal Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Brian Conway
- University of British Columbia, Vancouver, BC, Canada
| | - Hector Laplumé
- Hospital Profesor Alejandro Posadas, Buenos Aires, Argentina
| | - Des Martin
- Toga Laboratories, Edenvale, South Africa
| | - Martin Fisher
- Brighton and Sussex University Hospitals, Brighton, UK
| | - Ante Jelaska
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Conn., USA
| | - Ferdinand W Wit
- International Antiviral Therapy Evaluation Center (IATEC); Department of Internal Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Joep MA Lange
- International Antiviral Therapy Evaluation Center (IATEC); Department of Internal Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Tsekes G, Chrysos G, Douskas G, Paraskeva D, Mangafas N, Giannakopoulos D, Papanikolaou M, Georgiou E, Lazanas MC. Body composition changes in protease inhibitor-naive HIV-infected patients treated with two nucleoside reverse transcriptase inhibitors. HIV Med 2002; 3:85-90. [PMID: 12010354 DOI: 10.1046/j.1468-1293.2002.00105.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVES In the era of highly active antiretroviral treatment (HAART), there are insufficient data regarding lipodystrophy syndromes in HIV-1-infected patients treated with regimens that do not include protease inhibitors (PIs). We studied changes in body composition in HIV-1-infected patients before and 2 years after starting a non-PI-containing antiretroviral treatment regimen. METHODS We studied retrospectively the whole body dual energy X-ray absorptiometry (DEXA) scans of 23 PI-naive HIV-1-infected patients (17 males, six females), aged 37.4 +/- 9.3 years with mean CD4 count 401 +/- 130 cells/microL. Thirteen patients were on zidovudine (ZDV) + lamivudine (3TC) and 10 on ZDV + didanosine (ddI). Subjects were evaluated before the beginning of antiretroviral treatment and approximately 24 months later. For each patient body weight, CD4 T-cell counts, bone mineral content (BMC), bone mineral density (BMD) and whole body as well as regional fat and lean body mass were evaluated. RESULTS A significant decrease in BMC was observed, although the T scores remained within the normal limits. Our patients also exhibited a significant decrease in body weight due almost exclusively to fat loss, while lean mass was minimally affected. Fat loss was statistically significant in the arms and legs, but not in the trunk. The above changes were most prominent in the ZDV + 3TC treatment group; in this group of patients, fat loss was also evident in the trunk. Patients on ZDV + ddI, on the other hand, only showed a significant increase in their legs' lean mass; they preserved their total fat mass and exhibited no other significant changes between the two assessments. CONCLUSIONS Dual NRTI therapy contributes to fat loss and reduction of bone mineral content in otherwise healthy, clinically stable, PI-naive HIV-infected adults. Compared with patients on ZDV + ddI, patients on ZDV + 3TC had a more prominent fat loss in all body regions.
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Affiliation(s)
- G Tsekes
- 2nd Department of Medicine and HIV Unit, Tzaneion General Hospital of Piraeus, Athens University Medical School, Athens, Greece.
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