RESUMO
BACKGROUND: This study evaluated the presence of Epstein-Barr virus type 1 (EBV-1) DNA in patients living with HIV, before and after three different topical therapy protocols for oral hairy leukoplakia (OHL). METHODS: The sample consisted of five patients treated with topical solution of 25% podophyllin resin; six with 25% podophyllin resin plus 5% acyclovir cream; and four with 25% podophyllin resin plus 1% penciclovir cream. DNA was extracted from OHL scrapings and amplified by the PCR using specific primers for EBV-1 (EBNA-1). RESULTS: Clinical healing of OHL lesions was observed across all treatment groups over time. At baseline, EBNA-1 was detected in all OHL lesions. After treatment, OHL samples from three patients treated with 25% podophyllin resin plus 5% acyclovir cream and from one patient treated with 25% podophyllin resin plus 1% penciclovir cream exhibited negative EBNA-1 viral gene encoding. Despite the clinical resolution of OHL, 11 patients (73.3%) showed EBNA-1 positivity immediately after the lesion disappeared. Three patients (20%) treated with podophyllin resin displayed both EBNA-1 positivity and a recurrence of OHL, in contrast to no recurrence in the other two groups. CONCLUSIONS: These findings suggest potential associations between treatment formulations, EBNA-1 persistence, and the recurrence of OHL lesions.
Assuntos
Aciclovir , Administração Tópica , Antivirais , DNA Viral , Infecções por Vírus Epstein-Barr , Herpesvirus Humano 4 , Leucoplasia Pilosa , Humanos , Feminino , Masculino , Antivirais/uso terapêutico , Antivirais/administração & dosagem , Leucoplasia Pilosa/tratamento farmacológico , Leucoplasia Pilosa/virologia , Herpesvirus Humano 4/genética , Herpesvirus Humano 4/isolamento & purificação , Aciclovir/uso terapêutico , Aciclovir/administração & dosagem , Pessoa de Meia-Idade , DNA Viral/análise , Infecções por Vírus Epstein-Barr/tratamento farmacológico , Infecções por Vírus Epstein-Barr/virologia , Adulto , Podofilina/uso terapêutico , Podofilina/administração & dosagem , Resultado do Tratamento , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Reação em Cadeia da Polimerase , Guanina/análogos & derivados , Guanina/uso terapêutico , Guanina/administração & dosagemRESUMO
OBJECTIVE: The aim of this study was to present a new topical treatment protocol for oral hairy leukoplakia (OHL), consisting of a 25% podophyllin resin with a 1% penciclovir cream (PP), and to compare this topical treatment protocol's efficacy with that of 2 other topical treatment protocols: a 25% podophyllin resin (P) and a 25% podophyllin resin with a 5% acyclovir cream (PA). STUDY DESIGN: Forty-two human immunodeficiency virus-positive patients with 69 OHL lesions were randomly treated using P, PA, or PP (14 patients in each topical treatment protocol). Clinical healing was determined when the white plaque could no longer be seen in the primary location of the lesion. Topical treatment performance was evaluated by clinical healing within each week of topical treatment protocol as well as by the recurrence of the lesion. Statistical survival analysis was performed using a Cox proportional hazards model. RESULTS: Approximately 55% of the patients presented with clinical healing of OHL within 7-8 weeks of each topical treatment protocol. After the sixth week, the PA treatment protocol presented a faster clinical healing rate of OHL. Recurrence was observed in 3 and 7 OHL lesions treated with P and PP treatment protocols, respectively. CONCLUSIONS: The PP treatment protocol proved to be effective; however, the PA treatment protocol was more effective in the clinical healing rate for OHL than P and PP after the sixth week of treatment, and no recurrent OHL was observed in the PA treatment group.
Assuntos
Aciclovir/análogos & derivados , Antineoplásicos Fitogênicos/administração & dosagem , Antivirais/administração & dosagem , Leucoplasia Pilosa/tratamento farmacológico , Podofilina/administração & dosagem , Neoplasias da Língua/tratamento farmacológico , Aciclovir/administração & dosagem , Administração Tópica , Adulto , Antifúngicos/uso terapêutico , Candidíase Bucal/complicações , Candidíase Bucal/tratamento farmacológico , Método Duplo-Cego , Feminino , Seguimentos , Guanina , Infecções por HIV/complicações , Infecções por HIV/transmissão , Soropositividade para HIV/complicações , Soropositividade para HIV/transmissão , Heterossexualidade , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Modelos de Riscos Proporcionais , Indução de Remissão , Fatores de Tempo , Resultado do Tratamento , Adulto JovemRESUMO
OBJECTIVE: The objective of this study was to assess the efficiency of topical applications of podophyllin resin (25%) (P) versus podophyllin resin (25%) together with acyclovir cream (5%) (PA) in the treatment of oral hairy leukoplakia (OHL) in accordance with the following criteria: (1) number of applications necessary for the total clinical resolution of OHL; (2) correlation between the decrease of lesion size and the number of applications; (3) total clinical resolution of OHL; and (4) clinical reevaluation 12 months after the end of treatment. STUDY DESIGN: Forty-six OHLs were treated with P (P group) or with PA (PA group). Applications were performed weekly. Student t, Fisher exact, and Pearson correlation tests were used for statistical analysis. RESULTS: All 24 lesions from the PA group presented total clinical resolution while 4 lesions from the P group did not. The P group required up to 25 applications performed weekly while the PA group required up to 18. Observed was a negative significant association between the size of the lesions and the number of applications performed weekly in the PA group. CONCLUSIONS: The present study demonstrated the following: (1) P and PA topical treatments presented a similar average number of applications performed weekly; (2) both groups showed the same clinical response at 12 months post-therapy; and (3) PA presented a 100% clinical resolution and a continuous decrease in OHL size over the course of weekly applications.