Organisms must adapt to the temporal characteristics of their surroundings to successfully
survive and reproduce. Variation in the daily light cycle, for example, acts through endocrine …

During our study of the reversal of seasonal obesity in Siberian hamsters, we found an
interaction between receptors for the pineal hormone melatonin and the sympathetic …

Publisher Summary Molecular biology has dispersed some of the myths surrounding
melatonin. Melatonin production sites can be clearly identified by detecting message and …

Melatonin" the light of night" is secreted from the pineal gland principally at night. The
hormone is involved in sleep regulation, as well as in a number of other cyclical bodily …

Though melatonin has a wide variety of biological functions, its effects on the neural stem
cells (NSCs) is still unknown. In this study, we examined the effects of melatonin at either …

Melatonin is an indoleamine that is synthesized in the pineal gland and has an extensive
repertoire of biological activities. In the present study, we found that melatonin reduced the …

The fact that the full extent of the function of the pineal gland has not yet been elucidated,
has stimulated melatonin research worldwide. This review introduces melatonin's …

In reindeer Rangifer tarandus, a high latitude species, the rhythmic production of melatonin
periodically dissipates under natural photoperiods when, in mid‐winter, there is near …

In many species living in temperate zones, reproduction is controlled by the photoperiod.
Recent findings have clarified that type 2 iodothyronine deiodinase (Dio2) plays a significant …

Many are the diseases which course with free radical formation. These disorders cover a
great range of fields such as neurodegenerative, immune, inflammatory and mitochondrial …