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Role of G-Substrate in the NO/cGMP/PKG Signal Transduction Pathway for Photic Entrainment of the Hamster Circadian Clock
(SAGE Publications, 2021-01)
The mammalian circadian clock at the hypothalamic suprachiasmatic nuclei (SCN) entrains biological rhythms to the 24- h cyclic environment, by encoding light-dark transitions in SCN neurons. Light pulses induce phase shifts ...
Circadian system responses to nocturnal and diurnal hosts in the kissing bug, Triatoma infestans
(Taylor & Francis, 2018-10)
Insects express diverse behavioral rhythms synchronized to environmental cycles. While circadian entrainment to light–dark cycles is ubiquitous in living organisms, synchronization to non-photic cycles may be critical for ...
Telling the Seasons Underground: The Circadian Clock and Ambient Temperature Shape Light Exposure and Photoperiodism in a Subterranean Rodent
(Frontiers Media, 2021-10-01)
Living organisms anticipate the seasons by tracking the proportion of light and darkness hours within a day—photoperiod. The limits of photoperiod measurement can be investigated in the subterranean rodents tuco-tucos ...
KCNQ4 in the reticular activating system (RAS): contribution to the circadian rhythm modulation
(Sociedad Argentina de Investigación en Neurociencia, 2020)
The M-current is a voltage-gated potassium current generated by channels composed by KCNQ2-5 subunits. The pedunculopontine nucleus (PPN) is part of the Reticular Activating System (RAS), associated with sleep regulation. ...
Parameters of photic resetting of the circadian system of a durnal rodent, the nile grass rat
(Universidade Federal do Rio Grande do Sul, 2018)
Glial and light-dependent glutamate metabolism in the suprachiasmatic nuclei
(Taylor, 2015-05)
The suprachiasmatic nuclei, the main circadian clock in mammals, are entrained by light through glutamate released from retinal cells. Astrocytes are key players in glutamate metabolism but their role in the entrainment ...
Interactions of polymorphisms in different clock genes associated with circadian phenotypes in humans
(Sociedade Brasileira de Genética, 2010-01-01)
Several studies have shown that mutations and polymorphisms in clock genes are associated with abnormal circadian parameters in humans and also with more subtle non-pathological phenotypes like chronotypes. However, there ...
Interactions of polymorphisms in different clock genes associated with circadian phenotypes in humans
(Sociedade Brasileira de Genética, 2010)
Several studies have shown that mutations and polymorphisms in clock genes are associated with abnormal circadian parameters in humans and also with more subtle non-pathological phenotypes like chronotypes. However, there ...
An automated tracking system for Caenorhabditis elegans locomotor behavior and circadian studies application
(Elsevier, 2007-01)
ADP-ribosylation of host cell proteins is a common mode of cell intoxication by pathogenic bacterial toxins. Antibodies induced by immunization with inactivated ADP-ribosylating toxins provide efficient protection in case ...
Free-running circadian rhythms of muscle strength, reaction time, and body temperature in totally blind people
(2013)
Light is the major synchronizer of circadian rhythms. In the absence of light, as for totally blind people, some variables, such as body temperature, have an endogenous period that is longer than 24 h and tend to be free ...