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Author (up) Kaneshi, Y.; Ohta, H.; Morioka, K.; Hayasaka, I.; Uzuki, Y.; Akimoto, T.; Moriichi, A.; Nakagawa, M.; Oishi, Y.; Wakamatsu, H.; Honma, N.; Suma, H.; Sakashita, R.; Tsujimura, S.-I.; Higuchi, S.; Shimokawara, M.; Cho, K.; Minakami, H. url  doi
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  Title Influence of light exposure at nighttime on sleep development and body growth of preterm infants Type Journal Article
  Year 2016 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 6 Issue Pages 21680  
  Keywords Health  
  Abstract Previous studies have demonstrated that a light-dark cycle has promoted better sleep development and weight gain in preterm infants than constant light or constant darkness. However, it was unknown whether brief light exposure at night for medical treatment and nursing care would compromise the benefits brought about by such a light-dark cycle. To examine such possibility, we developed a special red LED light with a wavelength of >675 nm which preterm infants cannot perceive. Preterm infants born at <36 weeks' gestational age were randomly assigned for periodic exposure to either white or red LED light at night in a light-dark cycle after transfer from the Neonatal Intensive Care Unit to the Growing Care Unit, used for supporting infants as they mature. Activity, nighttime crying and body weight were continuously monitored from enrolment until discharge. No significant difference in rest-activity patterns, nighttime crying, or weight gain was observed between control and experimental groups. The data indicate that nursing care conducted at 3 to 4-hour intervals exposing infants to light for <15 minutes does not prevent the infants from developing circadian rest-activity patterns, or proper body growth as long as the infants are exposed to regular light-dark cycles.  
  Address Department of Obstetrics, Hokkaido University Graduate School of Medicine, N15, W7, Kitaku, Sapporo 060-8638, Japan  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2045-2322 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:26877166 Approved no  
  Call Number LoNNe @ kyba @ Serial 1358  
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