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4. Antiretroviral genotypic resistance in plasma RNA and whole blood DNA in HIV-1 infected patients failing HAART

Author

Saracino, A, Gianotti, N, Marangi, M, Cibelli, Dc, Galli, A, Punzi, G, Monno, L, Lazzarin, A, Angarano, G, Dini, M, Del Gobbo, R, Montroni, M, Butini, L, Scalise, G, Ancarani, F, Di Cesare, S, Giacometti, A, Biglino, A, Degioanni, M, Paoloni, M, Mariani, R, Calella, G, Pastore, G, Ladisa, N, Mennea, G, Gritti, Fm, Fasullo, G, Chiodo, F, Borderi, M, Carosi, Giampiero, Castelli, Francesco, Torti, Carlo, Uccelli, C, Rizzardini, G, Visoná, R, Salvo, A, Averna, A, Russo, R, Celesia, Bm, Cosentino, S, Rinaldi, E, Pusterla, L, Carnevale, G, Mondello, P, Petrini, C, Ghinelli, F, Sighinolfi, L, Mazzotta, F, Lo Caputo, S, Pierotti, P, Leoncini, F, Sterrantino, Gk, Corsi, P, Pompei, Ag, Di Toro MT, Purificato, F, Indiveri, F, Setti, M, Murdaca, G, Iannessi, A, Cellini, A, Mariani, A, Scasso, A, De Gennaro, M, Chiodera, A, Castelli, P, Maltempo, K, Mongolo, G, Caggese, L, Schlacht, I, Cargnel, A, Atzori, C, Micheli, V, Moroni, M, Bini, T, Marcatto, I, Chiesa, E, Vigevani, G, Argenteri, B, Capetti, A, Esposito, R, Guaraldi, G, Seghetto, B, Chirianni, A, Gargiulo, M, Abrescia, N, D'Abbraccio, M, Busto, T, Marchitelli, C, Santirocchi, M, Abbadessa, V, Mancuso, S, Meneghetti, F, Pranzetti, M, Ferrari, C, Pizzaferri, P, Stagni, G, Di Candilo, F, Petrelli, E, Balducci, M, Menichetti, F, Polidori, M, Tascini, C, Di Carlo, A, Palamara, G, Antinori, A, Liuzzi, G, Aiuti, F, Mezzaroma, I, Pinter, E, Barbone, B, Vullo, V, Massetti, P, Dell'Isola, S, Mura, Ms, Mannazzu, M, Delias, R, Di Giammartino, D, Tarquini, P, Marranconi, F, Ferretto, R, Caramello, P, Orofino, Gc, Cimino, T, Bramato, C, Di Perri, G, Sinicco, A, Zeme, D, Bonora, S, Trentini, L, Soranzo, Ml, Macor, A, Salassa, B, Branz, F, Delle Foglie, P, Vaglia, A, Rossi, Mc, Ciccone, L, Panzolli, L, Grossi, P, Giola, M, Raise, E, Narne, E, Poggio, A, Demin, F, Mondino, V, Serpelloni, G, Malena, M, Bosco, O., Saracino, A, Gianotti, N, Marangi, M, Cibelli, D, Galli, A, Punzi, G, Monno, L, Lazzarin, A, Angarano, G, and Mancuso, S

Subjects
Anti-HIV Agents, DNA Mutational Analysis, Molecular Sequence Data, Proviral DNA, HIV Infections, HAART failure, medicine.disease_cause, DNA Mutational Analysi, chemistry.chemical_compound, HIV Protease, Proviruses, Antiretroviral Therapy, Highly Active, Virology, Drug Resistance, Viral, medicine, Humans, Multicenter Studies as Topic, HIV Infection, Treatment Failure, Genotyping, Randomized Controlled Trials as Topic, COLD-PCR, Mutation, Plasma RNA, biology, Proviruse, Sequence Analysis, RNA, Anti-HIV Agent, RNA, Sequence Analysis, DNA, biology.organism_classification, HIV Reverse Transcriptase, Reverse transcriptase, Antiretroviral genotypic resistance, Infectious Diseases, chemistry, DNA, Viral, Lentivirus, Immunology, HIV-1, RNA, Viral, DNA, antiretroviral genotypic resistance, haart failure, hiv-1, plasma rna, proviral dna, Human
Abstract

The extent to which HIV-1 proviral DNA mutations cause clinically relevant antiretroviral resistance is still controversial. Paired plasma HIV-1 RNA and whole blood DNA were compared in patients failing HAART to investigate if the additional knowledge of archived mutations could improve the selection of potentially active drugs. Seventy-three HIV-1-infected patients with first/second HAART failure were studied before starting a new regimen based on RNA genotyping. Follow-up data after a 12-week therapy were available. DNA genotyping was retrospectively performed on stored whole blood samples and mutational profiles were compared to those from RNA. The mean number of IAS pol mutations was significantly higher in RNA (4.45 ± 2.76) than in DNA (2.88 ± 2.47) (P < 0.001). DNA genotyping provided a 6% increase in detection of resistance-associated mutations. Among 64/73 patients showing discordant DNA/RNA profiles, 54 (84%) also differed for predicted active drugs. 16/73 (22%) patients had ≥1 mutation revealed by DNA genotyping alone, probably affecting therapy success in 2/16. However, neither RNA/DNA discordance nor detection of isolated DNA mutations were statistically associated with outcome. In conclusion, plasma RNA remains the elective choice for HIV genotyping in patients with therapy failure, even if the detection of proviral resistance-associated mutations, not simultaneously found in RNA, is a frequent event. Therefore, in some cases DNA plus RNA genotyping might assist in choosing more accurately subsequent antiretroviral regimens. © 2008 Wiley-Liss, Inc.

Published
2008
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6. A Simplified HAART Regimen with Raltegravir and Lamivudine, and Pharmacokinetic Interactions with a Combined Immunosuppressive Therapy with Tacrolimus and Everolimus in an HIV/HCV/HBV/HDV Patient after Liver Transplantation.

Author

Cirioni, O., Weimer, L. E., Fragola, V., Giacometti, A., Ancarani, F., Maracci, M., Gabrielli, E., Marchionni, E., Pirillo, M. F., and Vella, S.

Abstract

Copyright of West Indian Medical Journal is the property of West Indian Medical Journal (WIMJ) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2014
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10. In vitro anti-cryptosporidial activity of cationic peptides alone and in combination with inhibitors of ion transport systems.

Author

Giacometti, Andrea, Cirioni, Oscar, Barchiesi, Francesco, Ancarani, Fausto, Scalise, Giorgio, Giacometti, A, Cirioni, O, Barchiesi, F, Ancarani, F, and Scalise, G

Subjects
BIOLOGICAL transport, CELL lines, CRYPTOSPORIDIOSIS, CRYPTOSPORIDIUM, DRUG interactions, HETEROCYCLIC compounds, PEPTIDES, AIDS-related opportunistic infections, ANTIPROTOZOAL agents, PHARMACODYNAMICS
Abstract

The anti-cryptosporidial activity of four cationic peptides alone and in combination with five ion transport system (ITS) inhibitors was investigated for six clinical isolates of Cryptosporidium parvum recovered from stools of AIDS patients. The susceptibility tests were performed by inoculating the protozoa on to cell monolayers and determining the parasite count after 48 h incubation at 37 degrees C. The culture medium was supplemented with serial dilutions of cecropin P1, magainin II, indolicidin and ranalexin alone or in combination with amiloride and its analogues. No agent was able to inhibit parasite growth completely. The peptides had some inhibitory effect on parasite growth: cecropin P1, magainin II, indolicidin and ranalexin at a concentration of 50 microM produced 30.6, 33.2, 38.5 and 42.1% reductions, respectively, in schizont count. Conversely, the ITS inhibitors were scarcely effective. Positive interaction was demonstrated when the peptides were tested in combination with ITS inhibitors. [ABSTRACT FROM AUTHOR]

Published
2000
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11. Activity of nitazoxanide alone and in combination with azithromycin and rifabutin against Cryptosporidium parvum in cell culture.

Author

Giacometti, Andrea, Cirioni, Oscar, Barchiesi, Francesco, Ancarani, Fausto, Scalise, Giorgio, Giacometti, A, Cirioni, O, Barchiesi, F, Ancarani, F, and Scalise, G

Subjects
ANIMAL experimentation, ANTI-infective agents, ANTIBIOTICS, CELL culture, CELL physiology, CRYPTOSPORIDIOSIS, CRYPTOSPORIDIUM, THIAZOLES, AZITHROMYCIN, AIDS-related opportunistic infections, PHARMACODYNAMICS
Abstract

The in vitro activity of nitazoxanide alone and in combination with azithromycin and rifabutin was investigated against four clinical isolates of Cryptosporidium parvum. The susceptibility tests were performed by inoculation of the isolates on toe cell monolayers and determination of the parasite count after 48 h incubation at 37°C. The culture medium was supplemented with Dulbecco's modified Eagle's medium containing serial dilutions of each agent. Antibiotic-free plates were used as controls. Experiments were performed in triplicate. Nitazoxanide showed moderate anticryptosporidial activity: it suppressed the growth of parasites by >50% at 8 mg/L. A parasite reduction of 79.8–83.9% was observed when nitazoxanide 8 mg/L was combined with azithromycin 8 mg/L and rifabutin 8 mg/L. The study suggests that nitazoxanide may be active in inhibiting C. parvum growth in vitro upon combination with azithromycin or rifabutin. [ABSTRACT FROM PUBLISHER]

Published
2000
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13. Cognitive behavior in asymptomatic (CDC stage II and III) HIV - seropositive intravenous drug users (IVDUs).

Author

Pesce, M., Franciolini, B., Censori, B., Bartolini, M., Ancarani, F., Petrelli, E., and Provinciali, L.

Abstract

Copyright of Italian Journal of Neurological Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
1993
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16. Epidemic Kaposi’s sarcoma in Italy, a country with intravenous drug users as the main group affected by HIV infection

Author

Tirelli, U., Vaccher, E., Lazzarin, A., Errante, D., Alessi, E., Crosato, I., Spina, M., Zaccarelli, M., Aiuti, F., Moroni, M., Monfardini, S., Greco, D., Ancarani, F., Angarano, G., Baroni, C., Borri, A., Barelli, A., Cagnoni, G., Cajozzo, A., Carbone, A., Cargnel, A., Confalonieri, F., Costigliola, P., Crocchiolo, P., De Agostini, A., Santa, M. Della, Fasan, M., Figoli, F., Fiore, G.P., Garavelli, P.L., Giannelli, F., Galâ, S., Giudici, M.G., Gritti, F.M., Luzi, G., Luzzati, R., Magnani, G., M., Malena, Malfitano, A., Mazzotta, F., Meraviglia, P., Milazzo, F., Milo, D., Ortona, L., Paladini, A., Piersantelli, N., Pristerà, R., Raineri, G., Raise, E., Repetto, L., Rezza, G., Rinaldi, E., Ricchi, E., Riccio, G., Rizzardini, G., Rizzi, M., Rizzo, F., Rosso, R., Salassa, B., Saliva, G., Savalli, E., Scalise, G., Scasso, A., Sinicco, A., Soranzo, M.L., Stellini, R., Sueri, L., Sulis, E., Suter, F., Terragna, A., Troiano, T., Vaglia, A., Visco, G., Foà, R., and Gavosto, F.

Published
1991
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