Causes of Failure of Catch-up Growth After Certain Forms of Growth Retardation

Catch-up Growth

Catch-up growth in the rat skull after retardation during the suckling period.

In rats whose growth was restricted by rearing in large litters the skull was less affected than the spine and the brain case less than the face. No sex difference was apparent during undernutrition but on subsequent rehabilitation females had caught up to controls in four out of five skull measurements within 4 weeks and by the end of the experiment the skulls of the neonatally undernourished ...

Catch-up growth.

Catch-up growth, defined as growth velocity above the statistical limits of normality for age or maturity during a defined period of time, is distinguished from compensatory growth since it makes up for a potential loss rather than an actual loss and is seen in the whole body as opposed to specific organs. The cellular explanation for catch-up based on the work of Winick is described and a rece...

Nutritional Problems and Catch-Up Growth in Infants with Intrauterine Growth Retardation

In the past, it was common practice to relate low birthweight to prematurity. However, a number of environmental, maternal, placental, and fetal factors have been recognized as causing intrauterine growth retardation (IUGR) in babies who are small-for-gestational-age (SGA). In the more affluent societies, one-third of the low birthweight babies are SGA. Yet in communities where protein-energy m...

Growth plate senescence and catch-up growth.

Longitudinal bone growth is rapid in prenatal and early postnatal life, but then slows with age and eventually ceases. This growth deceleration is caused primarily by a decrease in chondrocyte proliferation, and is associated with other structural, functional, and molecular changes collectively termed growth plate senescence. Current evidence suggests that growth plate senescence occurs because...