Search Results - "Lincoln, Gerald"
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A Molecular Switch for Photoperiod Responsiveness in Mammals
Published in Current biology (21-12-2010)“…Seasonal synchronization based on day length (photoperiod) allows organisms to anticipate environmental change. Photoperiodic decoding relies on circadian…”
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2
Ancestral TSH Mechanism Signals Summer in a Photoperiodic Mammal
Published in Current biology (05-08-2008)“…In mammals, day-length-sensitive (photoperiodic) seasonal breeding cycles depend on the pineal hormone melatonin, which modulates secretion of reproductive…”
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3
Characterizing a Mammalian Circannual Pacemaker
Published in Science (American Association for the Advancement of Science) (22-12-2006)“…Many species express endogenous cycles in physiology and behavior that allow anticipation of the seasons. The anatomical and cellular bases of these circannual…”
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4
Effects of Photoperiod Extension on Clock Gene and Neuropeptide RNA Expression in the SCN of the Soay Sheep
Published in PloS one (26-07-2016)“…In mammals, changing daylength (photoperiod) is the main synchronizer of seasonal functions. The photoperiodic information is transmitted through the…”
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5
Hypothesis: Cyclical Histogenesis Is the Basis of Circannual Timing
Published in Journal of biological rhythms (01-12-2011)“…Circannual rhythms are innately timed long-term (tau ≈ 12 months) cycles of physiology and behavior, crucial for life in habitats ranging from the equator to…”
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Testes size, testosterone production and reproductive behaviour in a natural mammalian mating system
Published in The Journal of animal ecology (01-01-2012)“…1. Testosterone (T) is a key mediator in the expression of numerous morphological and behavioural traits in mammals, but the factors underlying individual…”
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7
Decoding the nightly melatonin signal through circadian clockwork
Published in Molecular and cellular endocrinology (27-06-2006)“…Photoperiod regulates the timing of seasonal cycles in reproduction, energy metabolism, moult and other seasonal characteristics, and the effects are…”
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Identification of Eya3 and TAC1 as Long-Day Signals in the Sheep Pituitary
Published in Current biology (11-05-2010)“…Seasonally breeding mammals such as sheep use photoperiod, encoded by the nocturnal secretion of the pineal hormone melatonin, as a critical cue to drive…”
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Temporal Expression of Seven Clock Genes in the Suprachiasmatic Nucleus and the Pars Tuberalis of the Sheep: Evidence for an Internal Coincidence Timer
Published in Proceedings of the National Academy of Sciences - PNAS (15-10-2002)“…The 24-h expression of seven clock genes (Bmal1, Clock, Per1, Per2, Cry1, Cry2, and CK1ε) was assayed by in situ hybridization in the suprachiasmatic nucleus…”
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10
Redefining the Limits of Day Length Responsiveness in a Seasonal Mammal
Published in Endocrinology (Philadelphia) (01-01-2008)“…At temperate latitudes, increases in day length in the spring promote the summer phenotype. In mammals, this long-day response is mediated by decreasing…”
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Identification of Melatonin-Regulated Genes in the Ovine Pituitary Pars Tuberalis, a Target Site for Seasonal Hormone Control
Published in Endocrinology (Philadelphia) (01-11-2008)“…The pars tuberalis (PT) of the pituitary gland expresses a high density of melatonin (MEL) receptors and is believed to regulate seasonal physiology by…”
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A brief history of circannual time
Published in Journal of neuroendocrinology (01-03-2019)“…Innate circannual timing is an ancestral trait that first evolved in free‐living eukaryotic cells some 2000 million years ago, with marine algae of the genus…”
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Photorefractoriness in Mammals: Dissociating a Seasonal Timer from the Circadian-Based Photoperiod Response
Published in Endocrinology (Philadelphia) (01-09-2005)“…In seasonal animals, prolonged exposure to constant photoperiod induces photorefractoriness, causing spontaneous reversion in physiology to that of the…”
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14
Multiple Effects of Melatonin on Rhythmic Clock Gene Expression in the Mammalian Pars Tuberalis
Published in Endocrinology (Philadelphia) (01-02-2006)“…In mammals, changing day length modulates endocrine rhythms via nocturnal melatonin secretion. Studies of the pituitary pars tuberalis (PT) suggest that…”
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A Novel Mammalian Receptor for the Evolutionarily Conserved Type II GnRH
Published in Proceedings of the National Academy of Sciences - PNAS (14-08-2001)“…Mammalian gonadotropin-releasing hormone (GnRH I: pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2) stimulates pituitary gonadotropin secretion, which in turn…”
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Long-Day Suppressed Expression of Type 2 Deiodinase Gene in the Mediobasal Hypothalamus of the Saanen Goat, a Short-Day Breeder: Implication for Seasonal Window of Thyroid Hormone Action on Reproductive Neuroendocrine Axis
Published in Endocrinology (Philadelphia) (01-01-2006)“…In most animals that live in temperate regions, reproduction is under photoperiodic control. In long-day breeders such as Japanese quail and Djungarian…”
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17
Melatonin entrainment of circannual rhythms
Published in Chronobiology international (2006)“…A melatonin-based photoperiod timing mechanism and a circannual rhythm-generating system interact to govern seasonal cycles in physiology and behavior in many…”
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Influence of photoperiod and gonadal status on food intake, adiposity, and gene expression of hypothalamic appetite regulators in a seasonal mammal
Published in American journal of physiology. Regulatory, integrative and comparative physiology (01-01-2007)“…We studied the effects of photoperiod on metabolic profiles, adiposity, and gene expression of hypothalamic appetite-regulating peptides in gonad-intact and…”
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Molecular Characterization of the Long-Day Response in the Soay Sheep, a Seasonal Mammal
Published in Current biology (17-02-2004)“…In mammals, seasonal timekeeping depends on the generation of a nocturnal melatonin signal that reflects nightlength/daylength [1]. To understand the…”
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20
Physiological Model of a Circannual Oscillator
Published in Journal of biological rhythms (01-06-2008)“…Recent evidence based on studies in hypothalamo-pituitary disconnected Soay sheep suggests that the generation of circannual rhythms may be localizable to…”
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