Journal ArticleDOI
Mammalian Photoperiodic System: Formal Properties and Neuroendocrine Mechanisms of Photoperiodic Time Measurement
TLDR
Variations in photoperiodic response are seen not only between species but also between breeding populations within a species and between individuals within single breeding populations, and among species differences with respect to the importance and specific functions of various melatonin target sites.Abstract:
Photoperiodism is a process whereby organisms are able to use both absolute measures of day length and the direction of day length change as a basis for regulating seasonal changes in physiology an...read more
Citations
More filters
Journal ArticleDOI
Suprachiasmatic Nucleus: Cell Autonomy and Network Properties
TL;DR: The SCN network synchronizes its component cellular oscillators, reinforces their oscillations, responds to light input by altering their phase distribution, increases their robustness to genetic perturbations, and enhances their precision.
Journal ArticleDOI
Photoperiodic Control of Seasonality in Birds
TL;DR: This review examines how birds use the annual cycle in photoperiod to ensure that seasonal events—breeding, molt, and song production—happen at the appropriate time of year.
Journal ArticleDOI
Carcinogenicity of shift-work, painting, and fire-fighting.
Kurt Straif,Robert Baan,Yann Grosse,Béatrice Secretan,Fatiha El Ghissassi,Véronique Bouvard,Andrea Altieri,Lamia Benbrahim-Tallaa,Vincent Cogliano +8 more
TL;DR: The Working Group concluded that “shift-work that involves circadian disruption is probably carcinogenic to humans” (Group 2A).
Journal ArticleDOI
Generation of the Melatonin Endocrine Message in Mammals: A Review of the Complex Regulation of Melatonin Synthesis by Norepinephrine, Peptides, and Other Pineal Transmitters
TL;DR: The aim of this review is to gather together early and recent data on the effects of the nonadrenergic transmitters on modulation of melatonin synthesis, which reveals the variety of inputs that can be integrated by the pineal gland; what elements are crucial to deliver the very precise timing information to the organism.
Journal ArticleDOI
Kisspeptins and Reproduction: Physiological Roles and Regulatory Mechanisms
TL;DR: This review aims to provide a comprehensive account of the state-of-the-art in the field of kisspeptin physiology by covering in-depth the consensus knowledge on the major molecular features, biological effects, and mechanisms of action ofkisspeptins in mammals and, to a lesser extent, in nonmammalian vertebrates.
References
More filters
Journal ArticleDOI
The melatonin rhythm: both a clock and a calendar.
TL;DR: The paper summarizes the 3 patterns of nocturnal melatonin production that have been described and shows that the circadian production and secretion of melatonin by the pineal gland can impart both daily and seasonal, i.e., calendar, information to the organism.
Journal ArticleDOI
Effect of the relative length of day and night and other factors of the environment on growth and reproduction in plants1
W. W. Garner,H. A. Allard +1 more
Journal ArticleDOI
The Entrainment of Circadian Oscillations by Light and Their Role as Photoperiodic Clocks
TL;DR: In this paper, a "coincidence model" for photoperiodic induction is proposed, which is essentially Bunning's original scheme given in somewhat more explicit terms, and it may yet prove true that the coincidence-device type of model will prove inadequate.
Journal ArticleDOI
The Timed Infusion Paradigm for Melatonin Delivery - What has it Taught Us About the Melatonin Signal, its Reception, and the Photoperiodic Control of Seasonal Responses
TL;DR: It is the collective view that the TIP has played, and will continue to play, a pivotal role in elucidation of the function of MEL in the photoperiodic control of seasonal mammalian responses and that the duration of the MEL signal is the critical parameter of the nocturnal secretion profile of the hormone for the phot operable control of several seasonally adaptive responses in mammalian species as diverse as hamsters and sheep.
Related Papers (5)
Thyrotrophin in the pars tuberalis triggers photoperiodic response
Nobuhiro Nakao,Hiroko Ono,Takashi Yamamura,Tsubasa Anraku,Tsuyoshi Takagi,Kumiko Higashi,Shinobu Yasuo,Yasuhiro Katou,Saburo Kageyama,Yumiko Uno,Takeya Kasukawa,Masayuki Iigo,Peter J. Sharp,Atsushi Iwasawa,Yutaka Suzuki,Sumio Sugano,Teruyuki Niimi,Makoto Mizutani,Takao Namikawa,Shizufumi Ebihara,Hiroki R. Ueda,Takashi Yoshimura +21 more