Does ambient light at night reduce total melatonin production?

Christopher C.M. Kyba, Thomas Kantermann

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It was with great interest that we read the recent study by Hersh et al. on the effects of sleep and light at night on melatonin in adolescents. Of particular interest was their focus on electronic use after “lights out”. The authors highlight the importance of understanding what effects this may have on sleep, citing a survey that showed that 72% of American 13-18 year olds regularly use a cellphone or computer before trying to go to sleep …

Central precocious puberty due to hypothalamic hamartoma in neurofibromatosis type 1

Emanuele Bartolini, Stefano Stagi, Perla Scalini, Andrea Bianchi, Antonio Ciccarone, Mario Mascalchi

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In neurofibromatosis type 1 (NF1), Central Precocious Puberty (CPP) occurs almost invariably in association with optic pathway tumors, usually pilocytic astrocytoma. However, at times the aetiology remains. On the other hand, in the general population CPP develops due to an underlying hypothalamic hamartoma in up to 10% of patients. To the best of our knowledge, CPP due to hypothalamic hamartomas in NF1 has been reported only once in the literature …

Diversity in endocrinology practice: the case of Ramadan

Ioannis Ilias, Luai Said Tayeh, Isidoros Pachoundakis

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There is today an imperative need to raise health workers’ awareness of contemporary cultural diversity and different beliefs, values and attitudes concerning health and disease in order to provide culturally appropriate and professionally competent care. Muslims currently account for 1%-10% of the population in Western Europe …