cell cycle

(redirected from Mitotic 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.

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

cell cycle

n.
The series of events involving the growth, replication, and division of a eukaryotic cell.

cell cy·cle

(sel sī'kĕl)
The periodic biochemical and structural events occurring during proliferation of cells, such as in tissue culture.
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.

cell cy·cle

(sel sī'kĕl)
The periodic biochemical and structural events occurring during proliferation of cells, such as in tissue culture.
References in periodicals archive ?
Chromatids become visible when mitosis sets in; the remainder of the mitotic cycle involves their separation into two offspring nuclei (Figure 4-4).
During maize endosperm development, the cell cycle takes two discrete forms: a mitotic cycle and an endoreduplication cycle.
Recent studies have shown that, upon injury and with exogenous stimulus such as growth factors, myoblasts have the remarkable ability to initiate mitotic cycle and then begin to proliferate to form new multinucleated myotubes thus preventing the loss of muscle mass after muscle trauma [11].
Immunohistochemical staining results showed that the myosin expression in irradiation group was obviously lower than that in control group 48 h after irradiation/refeeding, but higher than that in 20% FBS group and 10% FBS group, suggesting that LPLI could also inhibit in vitro myogenic differentiation of myoblasts to a certain extent, while at the same time promoting them to enter into mitotic cycle (Figure 6).
The results of flow cytometric assay showed that, after pretreatment with serum starvation, laser irradiation for 3 min or serum refeeding could significantly increase BrdU incorporation levels which mark cells in S phase of the mitotic cycle [21], suggesting that more myoblasts reentered into growth phase from quiescence and in some ways LPLI seems to be analogous to the essential components of growth medium required for myoblasts survival and growth in vitro.
Alternatively, the newly formed cells may undergo several mitotic cycles before starting their migration toward the surface.