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1.
J Antimicrob Chemother ; 71(3): 739-50, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26679249

RESUMO

OBJECTIVES: This study aims to evaluate the reliability and clinical utility of NS3 sequencing in hepatitis C virus (HCV) 1-infected patients who were candidates to start a PI-containing regimen. METHODS: NS3 protease sequencing was performed by in-house-developed HCV-1 subtype-specific protocols. Phylogenetic analysis was used to test sequencing reliability and concordance with previous genotype/subtype assignment by commercial genotyping assays. RESULTS: Five hundred and sixty-seven HCV plasma samples with quantifiable HCV-RNA from 326 HCV-infected patients were collected between 2011 and 2014. Overall, the success rate of NS3 sequencing was 88.9%. The success rate between the two subtype protocols (HCV-1a/HCV-1b) was similarly high for samples with HCV-RNA >3 log IU/mL (>92% success rate), while it was slightly lower for HCV-1a samples with HCV-RNA ≤3 log IU/mL compared with HCV-1b samples. Phylogenetic analysis confirmed the genotype/subtype given by commercial genotyping assays in 92.9% (303/326) of cases analysed. In the remaining 23 cases (7.1%), 1 was HCV-1g (previously defined as subtype 1a), 1 was HCV-4d (previously defined as genotype 1b) and 1 was HCV-1b (previously defined as genotype 2a/2c). In the other cases, NS3 sequencing precisely resolved the either previous undetermined/discordant subtype 1 or double genotype/subtype assignment by commercial genotyping assays. Resistance-associated variants (RAVs) to PI were detected in 31.0% of samples. This prevalence changed according to PI experience (17.1% in PI-naive patients versus 79.2% in boceprevir/telaprevir/simeprevir-failing patients). Among 96 patients with available virological outcome following boceprevir/telaprevir treatment, a trend of association between baseline NS3 RAVs and virological failure was observed (particularly for HCV-1a-infected patients: 3/21 failing patients versus 0/22 achieving sustained virological response; P = 0.11). CONCLUSIONS: HCV-NS3 sequencing provides reliable results and at the same time gives two clinically relevant pieces of information: a correct subtype/genotype assignment and the detection of variants that may interfere with the efficacy of PI.


Assuntos
Farmacorresistência Viral , Técnicas de Genotipagem/métodos , Hepacivirus/classificação , Hepacivirus/efeitos dos fármacos , Hepatite C/virologia , Mutação , Proteínas não Estruturais Virais/genética , Genótipo , Hepacivirus/genética , Hepacivirus/isolamento & purificação , Humanos , RNA Viral/genética , Estudos Retrospectivos , Análise de Sequência de DNA
2.
Case Rep Dermatol ; 3(2): 175-80, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-22059074

RESUMO

Giant warts are infrequent dermatological viral infections caused by Papillomavirus (HPV) in immune-compromised patients. Treatment may often be difficult and unsatisfactory, either by surgery or cytotoxic agents, because of poor immune control of viral activity in such hosts. Here we report on the case of a patient with advanced and persistent immune suppression caused by HIV disease, who developed a monstrous wart covering the entirety of the radial district of his right hand. He was completely healed after a long treatment with traditional Chinese acupuncture, in spite of minimal immune recovery induced by efficacious antiretroviral therapy. To the best of our knowledge, therefore, the present report may be the first direct clinical evidence that acupuncture may be effective in the treatment of cutaneous warts also in HIV-infected patients.

3.
Infez Med ; 17(4): 228-35, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20046103

RESUMO

In recent years, novel antiretroviral drugs have become available for multi-experienced HIV-infected patients with limited options. We enrolled seven advanced HIV-patients, failing multiple previous HAART regimens, in virological failure on their current HAART regimen and showing recent clinical and immunological progression. All patients were prescribed a double-boosted tipranavir plus enfuvirtide based regimen, in addition to zidovudine, tenofovir and lamivudine for salvage therapy. To assess susceptibility to tipranavir, the tipranavir genotypic resistance score was calculated and two years later this was re-evaluated on an updated tipranavir genotypic score algorithm. At baseline, CD4 were 139/mcL (more or less 145), HIV-1 RNA was 822,700 cp/mL. All patients achieved HIV-1 RNA levels less than 400 cp/mL between 12 weeks and 24 weeks of observation; two reached less than 50 cp/mL during this period. At 48 weeks three patients had reached less than 50 cp/mL; three other patients had HIV RNA less than 200 cp/mL. At 72 and 96 weeks HIV viraemia was less than 50 cp/mL in six patients; CD4 T-cell counts 285/mcL (more o less 198). No AIDS-defining events were recorded. Adverse events did not need to stop or change HAART. Strong 3 NRTI backbone could help efficacy and durability, and frequent evaluations in complex patients can help to manage toxicity.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Proteína gp41 do Envelope de HIV/uso terapêutico , Inibidores da Fusão de HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Fragmentos de Peptídeos/uso terapêutico , Piridinas/uso terapêutico , Pironas/uso terapêutico , Adulto , Algoritmos , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Ensaios Clínicos Fase II como Assunto , Ensaios Clínicos Fase III como Assunto , Progressão da Doença , Enfuvirtida , Feminino , Seguimentos , Genótipo , Infecções por HIV/genética , HIV-1 , Humanos , Masculino , Pessoa de Meia-Idade , Mutação , Fenótipo , Terapia de Salvação , Sulfonamidas , Fatores de Tempo , Resultado do Tratamento
4.
Prog Urol ; 7(6): 1012-4, 1997 Dec.
Artigo em Francês | MEDLINE | ID: mdl-9490130

RESUMO

We report a case of eosinophilic cystitis the onset of which was characterized by acute peritonitis secondary to a spontaneous intraperitoneal rupture of the vesical cupula. The patient was treated with urgent partial cystectomy in another hospital and 3 months later he underwent endoscopic diathermic coagulation of a residual inflammatory lesion at our institution. After an 18 month endoscopic follow-up no further signs of recurrent eosinophilic cystitis have been pointed out. The non-traumatic bladder perforation and the absence of any other bladder pathology might indicate that eosinophilic cystitis can be responsible for complete bladder rupture.


Assuntos
Cistite/complicações , Eosinofilia/complicações , Doenças da Bexiga Urinária/etiologia , Idoso , Biópsia , Cistite/patologia , Eletrocoagulação , Eosinofilia/patologia , Seguimentos , Humanos , Masculino , Ruptura Espontânea , Fatores de Tempo , Bexiga Urinária/patologia , Doenças da Bexiga Urinária/cirurgia
5.
Chir Ital ; 46(6): 86-90, 1994.
Artigo em Italiano | MEDLINE | ID: mdl-8521548

RESUMO

Congenital penile curvature is not such a rare pathology and it is responsible for important aesthetic and functional problems. This malformation, can render intercourse difficult and painful, but it can be cured with a simple surgical procedure that almost always guarantees excellent results. In this work we report on the treatment of 48 patients (aged 16-34) with congenital penile curvature with a follow-up of 6 months to 10 years. The aetiology is also briefly analysed. A discussion follows on the diagnostic criteria for better interpretation of the main characteristics of this problem in relation to its functional appearance. A comparison of different surgical techniques is also shown, focusing over the procedure we perform: plissettage of the tunica albuginea. This technique is performed through a penile skin incision opposite to the maximal curvature of the organ, exposure of the tunica albuginea and the positioning of one or more series of stitches. The overall results show that 44 out of 48 patients were fully satisfied both from the aesthetic and functional points of view, while 4 were partly satisfied from the aesthetic point of view alone.


Assuntos
Pênis/anormalidades , Pênis/cirurgia , Adolescente , Adulto , Seguimentos , Humanos , Masculino
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