Results 211 to 220 of about 242,737 (263)
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Molecular control of circadian metabolic rhythms
Journal of Applied Physiology, 2009Circadian metabolic rhythms are fundamental to the control of nutrient and energy homeostasis, as well as the pathogenesis of metabolic disease, such as obesity, lipid disorders, and type 2 diabetes. This temporal organization of tissue metabolism is coordinated through reciprocal cross talk between the biological timing system and the metabolic ...
Siming, Li, Jiandie D, Lin
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[Rhythm and metabolic control].
Herz, 2022Diabetes mellitus and atrial fibrillation show a steady increase in their prevalence. Diabetes mellitus is a relevant risk factor for the development and maintenance of atrial fibrillation, which should not be underestimated. Fluctuations in blood glucose levels occurring in diabetes, inflammatory processes and oxidative stress lead to structural ...
Denise, Guckel +2 more
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Redox control of cardiac rhythm
Biochemistry (Moscow), 2012The rhythm of cardiac beats is generated by pacemaker cells differing from other cardiomyocytes by the presence of slow diastolic depolarization. Consistently activated transmembrane ionic currents provide cyclic excitation of pacemakers, forming the original "membrane clocks".
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Molecular control of circadian rhythms
Current Opinion in Genetics & Development, 1995Circadian rhythms are virtually ubiquitous in eukaryotes and have been shown to exist even in some prokaryotes. The generally accepted view is that these rhythms are generated by an endogenous clock. Recent progress, especially in the Drosophila, Neurospora and mouse systems, has revealed new clock components and mechanisms.
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Control Theoretic Views on Circadian Rhythms
2006 IEEE International Conference on Control Applications, 2006Circadian rhythms, which are observed in most of living things, e.g. bacteria, fungi, plants, and animals, are self-sustained oscillations with about 24 hours period, and have the following properties: The first property is that the oscillation is entrained by light/dark cycles; the second one is that the oscillation, especially the period of the ...
T. Takeuchi +3 more
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Spontaneous Rhythms in Physiological Control Systems
Nature, 1971MEAN arterial blood pressure in man undergoes spontaneous and broadly repetitive fluctuations with a typical period of about 10 s. We present an explanation for these fluctuations which we believe may also be applicable to the vasomotor activity associated with thermoregulation and therefore widely relevant.
B W, Hyndman, R I, Kitney, B M, Sayers
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[Rhythm control - cardioversion].
Annales de cardiologie et d'angeiologie, 2010In case of persistent and symptomatic atrial fibrillation, a pharmacological cardioversion under effective anticoagulation treatment may be performed according to current guidelines. In the absence of return to sinus rhythm, a Direct-Current cardioversion can be performed.
S, Boveda +8 more
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Rate Versus Rhythm Control for Atrial Fibrillation
Cardiology Clinics, 2014Treatment of patients with symptomatic atrial fibrillation (AF) with antiarrhythmic drug therapy in general improves their symptom scores and exercise tolerance; however, large randomized trials have failed to show a mortality benefit with a rhythm-control compared with a rate-control strategy.
Colby, Halsey, Aman, Chugh
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CNS CONTROL OF THE CIRCADIAN ADRENOCORTICAL RHYTHM
Journal of Steroid Biochemistry, 1983The effects of various CNS impairments on the circadian rhythm of plasma ACTH and Corticosterone (C) were studied in individual cannulated female Sprague-Dawley rats. Pinealectomy had no effect whatever the light perception (intact or blinded rats).
A, Szafarczyk +5 more
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How are Insect Circadian Rhythms Controlled?
Nature, 1969A review of available evidence—mostly involving the cockroach—suggests that insect circadian rhythms are not controlled primarily by hormones. The primary pace-maker seems rather to be electrical, acting through the ventral nerve cord.
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