growth retardation


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Related to growth retardation: beriberi, IUGR, intrauterine growth restriction

growth retardation

failure of an individual to develop at a normal rate of height and weight for his or her age. See also intrauterine growth retardation.

growth re·tar·da·tion

(grōth rētahr-dāshŭn)
A slower than normal pattern of growth caused by a variety of factors including heredity, growth hormone deficiency, thyroid disorders, chronic illness, poor nutrition, and emotional stress.

growth

1. the progressive increase in size of a living thing, especially the process by which the body reaches its point of complete physical development.
2. an abnormal formation of tissue, such as a tumor.

growth arrest line
a radiologically detectable line parallel to the growth plate in the metaphysis that indicates a temporary cessation of bone growth.
growth check
an event or state, usually the result of inadequate nutrition, parasitism or other disease, which temporarily reduces or stops growth in a young animal. Often followed by a period of compensatory growth.
compensatory growth
increased growth rate during a time period as a result of lower than normal growth rate during a previous period.
growth cone
bulbous enlargement at the tip of every growing axonal fiber in the fetus, from which many long filapodia extend.
growth curve
the curve obtained by plotting increase in size or numbers against the elapsed time.
growth disorders
are sometimes traceable to excess or shortage of pituitary secretions, and may arise from hereditary defects or from glandular abnormalities. Abnormally large secretions of growth hormone can produce gigantism. Failure of the pituitary gland to develop sufficiently or to secrete adequate amounts of growth hormone may result in dwarfism. In adulthood, overproduction of growth hormone may lead to acromegaly.
growth factor
substances which act as local regulators of cell division and function; classified as autocrine (act on cells of the same class) or paracrine (act on cells of a different class).
hematopoietic growth factors
see colony-stimulating factors.
one-step growth curve
a plot typical of the rapid growth of a virus in cell culture when all cells are infected simultaneously.
growth plate
the epiphyseal cartilage at which new bone formation occurs to lengthen long bones during their growth phase. Called also physis. See also epiphyseal plate.
growth promotants
includes all agents used to increase the rate of body weight gain. Used principally in food animals but also in horses with a view to increasing muscle mass and physical performance, and in any species to hasten recuperation in animals debilitated by illness. Pharmaceutical preparations are principally anabolic steroids. Husbandry procedures include estrogen and zearalenone implants and dietary supplementation with antibiotics, monensin and, in the case of pigs, copper.
growth rate
rate of increase in body weight per unit of time, e.g. lb/day in beef cattle.
recombinant growth factor
recombinant growth hormone.
growth retardation
stature smaller than normal; called also runt.
growth retardation lattice
radiodense metaphyseal lines parallel to the epiphyseal plate developing in fetal bone.
transforming growth factor [beta]
a family of extracellular signaling molecules important in the transformation of cells and in growth and development.
References in periodicals archive ?
Remodeling of resistance pulmonary artery (PA) ring smooth muscle layers of intrauterine growth retardation (IUGR)-hypoxia and control-hypoxia rats.
Glucose exposure caused the growth retardation in chick embryos till day 10 of incubation.
Confirmation of intrauterine growth retardation was done after taking the birth weight and examination of neonate.
It is concluded that ultrasound biometry combined with multi vessel doppler ultrasound provides better evaluation of clinically suspected cases of intrauterine growth retardation as well as predicts severity of disease.
Growth retardation is mostly related with insufficient calorie intake; the cause is organic in a small portion.
10] In our study 25% of the newborns had intrauterine growth retardation, this was more than the 14% observed in the study by Guin G et al.
The second point to be made is that on the basis of the commonly accepted ballpark estimates of [sigma] and [sigma], the likelihood of real-world growth retardation under capitalism would seem to be small.
Moreover, a significant dose-response relationship was found, such that for every 30 g of prescribed potent or very potent topical steroids, the risk of fetal growth retardation climbed by about 3%.
In fact, the letter noted, exposure to ozone in-utero has been linked with lower birthweights and intrauterine growth retardation.
Overall maternal and fetal complications included cesarean section (39%), preeclampsia (23%), preterm delivery (22%, with 4% delivered at less than 30 weeks' gestation), and intrauterine growth retardation (19%).
Characterised by acute onset of severe convulsions leading to rapid intellectual and bodily breakdown, other symptoms can include blindness and deafness, myoclonus, spasticity, choroathetosis, cerebellar ataxia and growth retardation.
et al published in the recent issue of Turkish Hematology on Insulin-like growth factor-1 in children with P-Thalassemia minor called our attention, because we have also studied growth retardation and ILGF-1 in thalassemia major patients [1].