Search Results - "Ashkenazi, I E"
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Prolactin rhythms-oscillators’ response to photoperiodic cues is age and circadian time dependent
Published in Neurobiology of aging (2005)“…In vivo prolactin release patterns exhibit a compound rhythm with circadian (24 h), semicircadian (12 h) and ultradian (6–8 h) periods. Changes in these…”
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Time dependent protection of amifostine from renal and hematopoietic cisplatin induced toxicity
Published in Life sciences (1973) (04-03-2005)“…Efficacy of chemotherapy may be maximized and its toxicity can be minimized if drugs would be administered at specified daily times. The present study was…”
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Superactive lipophilic peptides discriminate multiple vasoactive intestinal peptide receptors
Published in The Journal of pharmacology and experimental therapeutics (01-04-1995)“…To distinguish vasoactive intestinal peptide (VIP) receptors in the brain-mediating neurotransmission and neurotrophism, potent VIP analogues were designed…”
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Gender-dependent differences in biological rhythms of mice
Published in Life sciences (1973) (02-07-2004)“…The advantage of a variable's rhythm resides in its optimal time-phasing. This implies that, for a given function, members of a species will strive to exhibit…”
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Gonadotropin releasing hormone (GnRH) and estradiol (E 2) regulation of cell cycle in gonadotrophs
Published in Molecular and cellular endocrinology (30-05-2003)“…The number of pituitary cells, their size, hormonal content and release and response to external cues varies between day and night and during the estrus cycle…”
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Compound structure of rodents activity rhythm
Published in Physiology & behavior (1995)“…In the present study an attempt to determine the fine structure of rodents activity rhythm was carried out. To eliminate masking effects which are produced by…”
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The genetic background of individual variations of circadian-rhythm periods in healthy human adults
Published in American journal of human genetics (01-06-1993)“…As a group phenomenon, human variables exhibit a rhythm with a period (tau) equal to 24 h. However, healthy human adults may differ from one another with…”
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Mechanism of GnRH receptor signaling: from the membrane to the nucleus
Published in Annales d'endocrinologie (01-07-1999)“…The purpose of this review is to update the information concerning the intracellular effect of GnRH. Binding of GnRH to a G-protein coupled receptor leads to…”
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Herpetic eye attacks: variability of circannual rhythms
Published in British journal of ophthalmology (01-01-1995)“…BACKGROUND--The issue of seasonal variation of herpetic ocular infections is still controversial. This study was designed to examine whether this variation…”
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From ultradian to infradian rhythms: LH release patterns in vitro
Published in Chronobiology international (01-07-1999)“…In the present study, we examined in vitro luteinizing hormone (LH) release patterns from pituitaries and from pituitary cell cultures (3 and 7 days in…”
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Temporal pattern of LH secretion: regulation by multiple ultradian oscillators versus a single circadian oscillator
Published in Chronobiology international (01-01-2001)“…The possibility that the 24h rhythm output is the composite expression of ultradian oscillators of varying periodicities was examined by assessing the effect…”
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Rhythmicity of luteinizing hormone secretion expressed in vitro
Published in European journal of endocrinology (01-10-1996)“…Lewy H, Naor Z, Ashkenazi IE. Rhythmicity of luteinizing hormone secretion expressed in vitro. Eur J Endocrinol 1996;135:455–63. ISSN 0804–4643 In the present…”
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The pattern of hormonal circadian time structure (acrophase) as an assessor of breast‐cancer risk
Published in International journal of cancer (01-03-1996)“…Though many hormones are secreted in a pulsatile manner, their secretion pattern can be superimposed by a 24‐hour sinusoidal curve. The sinusoidal curve is…”
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Time-dependent toxicity of drugs used in cancer chemotherapy: separate and combined administration
Published in International journal of cancer (15-08-1989)“…Time-dependent toxicity of 3 anti-cancer drugs was demonstrated in BALB/c mice. Cisplatinum, adriamycin and cyclophosphamide were injected at 4 different…”
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Time dependency of hematopoietic growth factor coupled to chronotoxicity of carboplatin
Published in Cancer chemotherapy and pharmacology (1998)“…A growing body of data suggests that cancer therapy may be improved and toxicity reduced by administration of antineoplastic agents and cytokines at carefully…”
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Strain dependent response of circadian rhythms during exposure to continuous illumination
Published in Life sciences (1973) (1989)“…Enzymes activities were measured, at three hours intervals, during 30 hours, in various tissues of C57BL/6J and A/J male mice. The measurements, were carried…”
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Long Ultradian Rhythms in Red Blood Cells and Ghost Suspensions: Possible Involvement of Cell Membrane
Published in In Vitro Cellular & Developmental Biology (01-10-1990)“…Oscillations in glyceraldehyde-3-phosphate dehydrogenase (GAPD) and glucose-6-phosphate dehydrogenase (G6PD) activities were recorded in suspensions of intact…”
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