Results 311 to 320 of about 183,356 (348)

Melatonin and Circadian Rhythms

Current Topics in Medicinal Chemistry, 2002
Melatonin synthesis and secretion by the pineal gland is under the control of the suprachiasmatic nucleus and consequently has a profound circadian rhythm. In this review we discuss some of the issues surrounding the measurement of melatonin rhythmicity in biological fluids and the factors that influence melatonin circadian rhythmicity, including light
Kennaway, D., Wright, H.
openaire   +4 more sources

Circadian rhythms and circadian rhythm disorders in children and adolescents

Seminars in Pediatric Neurology, 2001
A clinically applicable review of circadian rhythm physiology is presented, including a detailed examination of the interaction of circadian and homeostatic systems and the maturation of the circadian system from preconception through adolescence. Emphasis is placed on the clinical evaluation gathering information through the history, sleep log, and if
Mark W. Mahowald, Gerald M. Rosen, John Garcia   +2 more
openaire   +3 more sources

Circadian Rhythms and Arthritis

Rheumatic Disease Clinics of North America, 2005
The clinical symptoms of rheumatoid arthritis (RA) show a circadian variation; joint stiffness and pain are more prominent in the early morning. An altered functioning of the hypothalamic-pituitary-adrenal axis (cortisol) and of the pineal gland (melatonin) seems to be important factors in the perpetuation and clinical circadian symptoms of RA ...
Alfonse T. Masi, Maurizio Cutolo
openaire   +3 more sources

Circadian rhythms in the fetus

Molecular and Cellular Endocrinology, 2012
Throughout gestation, the close relationship between mothers and their progeny ensures adequate development and a successful transition to postnatal life. By living inside the maternal compartment, the fetus is inevitably exposed to rhythms of the maternal internal milieu such as temperature; rhythms originated by maternal food intake and maternal ...
Serón Ferré, María, Méndez, Natalia, Abarzúa Catalán, Lorena, Vilches, Nelson, Valenzuela, Francisco J., Reynolds, Henry E., Llanos Mansilla, Jorge, Rojas, Auristela, Valenzuela, Guillermo J., Torres Farfán, Claudia   +9 more
openaire   +4 more sources

Sleep and circadian rhythms

Experimental Gerontology, 1991
The human biological clock or "circadian system" serves the function of preparing the body and mind for restful sleep at some times of day and active wakefulness at others. The observed circadian rhythms result from three interacting processes: endogenous rhythm generation mechanisms, entrainment mechanisms to keep these rhythms "on track," and ...
openaire   +3 more sources

Circadian rhythms

Acta Physiologica, 2018
Pontus B, Persson, Anja, Bondke Persson
openaire   +2 more sources

CIRCADIAN RHYTHMS

Photochemistry and Photobiology, 1978
B M, Sweeney, B B, Prézelin
openaire   +2 more sources

Circadian rhythms.

The Canadian nurse, 1968
  +8 more sources

Circadian rhythm as a therapeutic target

Nature Reviews Drug Discovery, 2021
Holger K Eltzschig, Wei Ruan, Xiaoyi Yuan   +2 more
exaly  

Circadian Rhythms and Phytochrome

Annual Review of Plant Physiology and Plant Molecular Biology, 1991
INTRODUCTION. .. ....... . . . . . . . . ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . ..... .. . . 351 FEATURES OF CIRCADIAN RHyTHMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. .. .... . . . . . .. . . . . 352 The Endogenous Oscillator . . . . . . . . . . . . . .
openaire   +2 more sources