cell cycle

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cycle

 [si´k'l]
a succession or recurring series of events.
cardiac cycle a complete cardiac movement, or heart beat, including systole, diastole, and the intervening pause.
Cardiac cycle. From Applegate, 2000.
cell cycle the cycle of biochemical and morphological events occurring in a reproducing cell population; it consists of the S phase, occurring toward the end of interphase, in which DNA is synthesized; the G2 phase, a relatively quiescent period; the M phase, consisting of the four phases of mitosis; and the G1 phase of interphase, which lasts until the S phase of the next cycle.
citric acid cycle tricarboxylic acid cycle.
estrous cycle the recurring periods of estrus in adult females of most mammalian species and the correlated changes in the reproductive tract from one period to another.
hair cycle the successive phases of the production and then loss of hair, consisting of anagen, catagen, and telogen.
menstrual cycle see menstrual cycle.
ovarian cycle the sequence of physiologic changes in the ovary involved in ovulation; see also ovulation and reproduction.
reproductive cycle the cycle of physiologic changes in the reproductive organs, from the time of fertilization of the ovum through gestation and childbirth; see also reproduction.
sex cycle (sexual cycle)
1. the physiologic changes that recur regularly in the reproductive organs of nonpregnant female mammals.
2. the period of sexual reproduction in an organism that also reproduces asexually.
tricarboxylic acid cycle the cyclic metabolic mechanism by which the complete oxidation of the acetyl portion of acetyl-coenzyme A is effected; the process is the chief source of mammalian energy, during which carbon chains of sugars, fatty acids, and amino acids are metabolized to yield carbon dioxide, water, and high-energy phosphate bonds. Called also citric acid cycle, Krebs cycle, and TCA cycle.
 Central pathways of metabolism: How the body produces energy from the energy-containing nutrients using the tricarboxylic acid cycle. From Davis and Sherer, 1994.
urea cycle a cyclic series of reactions that produce urea; it is a major route for removal of the ammonia produced in the metabolism of amino acids in the liver and kidney.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

cell cy·cle

the periodic biochemical and structural events occurring during proliferation of cells such as in tissue culture; the cycle is divided into phases called G0, Gap1 (G1), synthesis (S1), Gap2 (G2), and mitosis (M). The period runs from one division to the next.
Synonym(s): mitotic cycle
Farlex Partner Medical Dictionary © Farlex 2012

cell cycle

n.
The series of events involving the growth, replication, and division of a eukaryotic cell.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

cell cy·cle

(sel sī'kĕl)
The periodic biochemical and structural events occurring during proliferation of cells, such as in tissue culture.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Cell cycleclick for a larger image
Fig. 96 Cell cycle . The interphase stages.

cell cycle

the series of stages through which a cell progresses when it is actively dividing. In EUKARYOTES, the cycle consists of three subdivisions of INTERPHASE (G1, S and G2) plus MITOSIS.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

cell cy·cle

(sel sī'kĕl)
The periodic biochemical and structural events occurring during proliferation of cells, such as in tissue culture.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Caption: FIGURE 9: Influence of tangeretin on mRNA expression levels of cell cycle proteins. L1: Control; L2: OVA; L3: OVA + tangeretin (25 mg); L4: OVA + tangeretin (50 mg); L5: OVA + DEX (A).
Cell cycle proteins and the development of oral squamous cell carcinoma.
They cover pathophysiological issues, such as neurovirological aspects of HIV infection, encephalitis, chemokines and the neuropathogenesis of HIV-1 infection, as well as cerebrospinal fluid markers of AIDS-related dementia complex, antioxidants and brain functions, cell cycle proteins and encephalitis, and neural imaging.
A recent study explored the expression of cell cycle proteins in normal, premalignant and malignant endometrial lesions representing the morphologically well defined stepwise model of human endometrial carcinogenesis.

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