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Relationship between maternal parity, basal prolactin levels and neonatal breast milk intake. 1988

A A Zuppa, and A Tornesello, and P Papacci, and G Tortorolo, and G Segni, and G Lafuenti, and E Moneta, and A Diodato, and M Sorcini, and S Carta
Department of Pediatrics-Neonatology, Catholic University of Sacred Heart, Rome, Italy.

Basal serum levels of prolactin (PRL) in 21 nursing mothers were measured by radioimmunoassay on the 2nd, 3rd and 4th days of the puerperium. The quantity of breast milk suckled during the 4th day of life was also evaluated by calculating the difference in the baby's weight before and after each feeding. During the first postpartum days, mean basal levels of PRL did not change. However these levels were noted to be significantly lower in the multiparas (p less than 0.05) than in the primiparas. In addition, the milk intake in neonates of multiparous mothers was significantly greater (p less than 0.05) than that in neonates of primiparous mothers. The author's hypothesis, based on the results of animal experimentation described in the literature, is that initiation of breast-feeding is facilitated in multiparas by the increased number of occupied PRL receptors in the mammary glands reflected by the lowered serum levels of the hormone.

UI MeSH Term Description Entries
D007227 Infant Nutritional Physiological Phenomena Nutritional physiology of children from birth to 2 years of age. Infant Nutrition Physiology,Nutrition Physiology, Infant,Complementary Feeding,Infant Nutritional Physiological Phenomenon,Infant Nutritional Physiology,Supplementary Feeding,Complementary Feedings,Feeding, Complementary,Feeding, Supplementary,Feedings, Complementary,Feedings, Supplementary,Nutritional Physiology, Infant,Physiology, Infant Nutrition,Physiology, Infant Nutritional,Supplementary Feedings
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007774 Lactation The processes of milk secretion by the maternal MAMMARY GLANDS after PARTURITION. The proliferation of the mammary glandular tissue, milk synthesis, and milk expulsion or let down are regulated by the interactions of several hormones including ESTRADIOL; PROGESTERONE; PROLACTIN; and OXYTOCIN. Lactation, Prolonged,Milk Secretion,Lactations, Prolonged,Milk Secretions,Prolonged Lactation,Prolonged Lactations
D008895 Milk, Human Milk that is produced by HUMAN MAMMARY GLANDS. Breast Milk,Human Milk,Milk, Breast
D010298 Parity The number of offspring a female has borne. It is contrasted with GRAVIDITY, which refers to the number of pregnancies, regardless of outcome. Multiparity,Nulliparity,Primiparity,Parity Progression Ratio,Parity Progression Ratios,Ratio, Parity Progression,Ratios, Parity Progression
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
D011388 Prolactin A lactogenic hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). It is a polypeptide of approximately 23 kD. Besides its major action on lactation, in some species prolactin exerts effects on reproduction, maternal behavior, fat metabolism, immunomodulation and osmoregulation. Prolactin receptors are present in the mammary gland, hypothalamus, liver, ovary, testis, and prostate. Lactogenic Hormone, Pituitary,Mammotropic Hormone, Pituitary,Mammotropin,PRL (Prolactin),Hormone, Pituitary Lactogenic,Hormone, Pituitary Mammotropic,Pituitary Lactogenic Hormone,Pituitary Mammotropic Hormone
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D049590 Postpartum Period In females, the period that is shortly after giving birth (PARTURITION). Puerperium,Postpartum,Postpartum Women,Period, Postpartum,Women, Postpartum

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