Síndrome da Fase Atrasada do Sono: Efeitos dos Usos Isolado e Combinado de Melatonina e de Fototerapia
Arquivos
Data
2002
Autores
Remesar-Lopez, Alberto Jorge 
Orientadores
Tufik, Sergio
Tipo
Tese de doutorado
Título da Revista
ISSN da Revista
Título de Volume
Resumo
OBJETIVO: Avaliar, por meio de um estudo duplo cego e aleatorio, os efeitos do uso isolado e do uso combinado de melatonina (3 mg) e de fototerapia (10.000 lux) no horario de inicio do sono, na variacao do horario de inicio da secrecao do hormonio melatonina e na fase do valor minimo da temperatura corporal central em voluntarios com o diagnostico de sindrome da fase atrasada do sono. METODOS: Vinte voluntarios foram submetidos ao uso do actigrafo e preencheram o diario de sono, antes e durante os tratamentos, e a coleta de melatonina plasmatica e de temperatura retal durante 24 horas, antes e apos os tratamentos. Os tratamentos consistiram no uso de fototerapia pela manha e placebo a noite, de placebo de fototerapia pela manha e melatonina a noite e fototerapia pela manha e melatonina a noite durante 4 semanas. RESULTADOS: Houve o avanco no horario do inicio do sono nos voluntarios que usaram fototerapia pela manha e placebo a noite (n=7) e nos que usaram placebo de fototerapia e melatonina a noite (n=6), entre a semana do pre-tratamento e a semana 4 do tratamento, mas nao naqueles que utilizaram a fototerapia pela manha e ingeriram melatonina a noite. Nao houve diferencas estatisticamente significativas entre os tres tratamentos. Nao houve alteracao nos horarios de inicio de secrecao da melatonina e do nadir. CONCLUSOES: Os tratamentos com o uso isolado de fototerapia e de melatonina avancaram o horario de inicio do sono, o que nao ocorreu com a associacao de ambos
PURPOSE: To measure, through a double blind and randomized study, the effects of bright light and melatonin alone, or in a combination, on the sleeping onset time, on variation of dim light melatonin onset and the smaller value of temperature phase in volunteers with delayed sleep phase syndrome. METHODS: Twenty volunteers wore actigraph and wrote a sleep log before and during treatments, they were submitted to a collect of plasmatic melatonin and rectal temperature through 24 hours, after as well as before treatments. The treatments were bright light in the morning plus placebo at night (n=7), bright light placebo in the morning plus melatonin at night (n=6) and bright light in the morning plus melatonin at night (n=8), during 4 weeks. RESULTS: At the end of treatments with bright light in the morning plus placebo at night and bright light placebo in the morning plus melatonin at night, the sleeping onset time of volunteers advanced, but it did not happen with bright light in the morning plus melatonin at night. There were not significant differences among the treatments. The other parameters did not advance. CONCLUSION: The treatment with melatonin or bright light alone advanced the sleeping onset time, but not the association of both.
PURPOSE: To measure, through a double blind and randomized study, the effects of bright light and melatonin alone, or in a combination, on the sleeping onset time, on variation of dim light melatonin onset and the smaller value of temperature phase in volunteers with delayed sleep phase syndrome. METHODS: Twenty volunteers wore actigraph and wrote a sleep log before and during treatments, they were submitted to a collect of plasmatic melatonin and rectal temperature through 24 hours, after as well as before treatments. The treatments were bright light in the morning plus placebo at night (n=7), bright light placebo in the morning plus melatonin at night (n=6) and bright light in the morning plus melatonin at night (n=8), during 4 weeks. RESULTS: At the end of treatments with bright light in the morning plus placebo at night and bright light placebo in the morning plus melatonin at night, the sleeping onset time of volunteers advanced, but it did not happen with bright light in the morning plus melatonin at night. There were not significant differences among the treatments. The other parameters did not advance. CONCLUSION: The treatment with melatonin or bright light alone advanced the sleeping onset time, but not the association of both.
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Citação
REMESAR-LOPEZ, Alberto Jorge. Síndrome da Fase Atrasada do Sono: Efeitos dos Usos Isolado e Combinado de Melatonina e de Fototerapia. 119 f. 2006. Tese (Doutorado em Ciências) - Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, 2006.