Biomaterial Database

[Functional aspects of placental maturation in twin-pregnancies (author's transl)]. 1976

H G Bender, and C Werner, and G Hörner

Multiple pregnancy placentas are especially efficient for examining the influence of placental maturity on fetal growth; extraplacental factors can be considered the same, and difference concerning the state of the child can be correlated with the conditions of the placental function. In 46 twin-couples placentas have been examined. In 21 cases placental parts varied in maturity. Children whose placentas had reached a better stage of maturity, were better in weight, length and Apgar score. Only in 3 cases with ripe placenta Apgar score was low (all cases were second-born children). In 25 twin-couples placentas of equal maturity were found, and the children showed insignificant differences. Differences concerning the Apgar score, could be caused by extraplacental etiological factors. 68 placental parts were correlated to the gestational age; a precocious placenta maturity was found in 31 cases, and a mature placenta in 26 cases. The importance of precocious placental maturity and its influence on the development and condition of the child post partum are being thoroughly discussed.

UI	MeSH Term	Description	Entries
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D010920	Placenta	A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (CHORIONIC VILLI) derived from TROPHOBLASTS and a maternal portion (DECIDUA) derived from the uterine ENDOMETRIUM. The placenta produces an array of steroid, protein and peptide hormones (PLACENTAL HORMONES).	Placentoma, Normal,Placentome,Placentas,Placentomes
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011272	Pregnancy, Multiple	The condition of carrying two or more FETUSES simultaneously.	Multiple Pregnancy,Multiple Pregnancies,Pregnancies, Multiple
D001724	Birth Weight	The mass or quantity of heaviness of an individual at BIRTH. It is expressed by units of pounds or kilograms.	Birthweight,Birth Weights,Birthweights,Weight, Birth,Weights, Birth
D001835	Body Weight	The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	Body Weights,Weight, Body,Weights, Body
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001034	Apgar Score	A method, developed by Dr. Virginia Apgar, to evaluate a newborn's adjustment to extrauterine life. Five items - heart rate, respiratory effort, muscle tone, reflex irritability, and color - are evaluated 60 seconds after birth and again five minutes later on a scale from 0-2, 0 being the lowest, 2 being normal. The five numbers are added for the Apgar score. A score of 0-3 represents severe distress, 4-7 indicates moderate distress, and a score of 7-10 predicts an absence of difficulty in adjusting to extrauterine life.	Score, Apgar