Biomaterial Database

Comparative study of amniotic fluid and maternal blood serum human placental lactogen in normal and prolonged pregnancies. 1977

D Lolis, and K Konstantinidis, and G Papevangelou, and D Kaskarelis

The levels of human placental lactogen (hPL) were measured in maternal blood and amniotic fluid in normal and prolonged pregnancies. Statistical analysis of the hPL levels showed that values rose in both blood and amniotic fluid, reaching maximum levels between Weeks 34 and 36 (6.70 microgram per milliliter in blood serum, 0.85 microgram per milliliter in amniotic fluid). Thereafter, there was a decline, a significant fall occuring between Weeks 40 and 42 and in the prolonged pregnancy group (43 weeks and more) (t = 6.9 and p less than 0.001 in serum levels; t = 3.9 and p less than 0.001 in amniotic fluid levels). There was also a very close correlation (r = 021; p less than 0.005) between maternal blood and amniotic fluid hPL levels in normal pregnancies before labor.

UI	MeSH Term	Description	Entries
D010928	Placental Lactogen	A polypeptide hormone of approximately 25 kDa that is produced by the SYNCYTIOTROPHOBLASTS of the PLACENTA, also known as chorionic somatomammotropin. It has both GROWTH HORMONE and PROLACTIN activities on growth, lactation, and luteal steroid production. In women, placental lactogen secretion begins soon after implantation and increases to 1 g or more a day in late pregnancy. Placental lactogen is also an insulin antagonist.	Choriomammotropin,Chorionic Somatomammotropin, Human,Human Placental Lactogen,Lactogen Hormone, Placental,Mammotropic Hormone, Placental,Somatomammotropin, Chorionic,Choriomammotrophin,HCS (Human Chorionic Somatomammotropin),HPL (Human Placental Lactogen),PAPP-D,Placental Luteotropin,Pregnancy-Associated Plasma Protein D,Chorionic Somatomammotropin,Human Chorionic Somatomammotropin,Lactogen, Placental,Luteotropin, Placental,Placental Lactogen, Human,Placental Mammotropic Hormone,Pregnancy Associated Plasma Protein D
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
D011273	Pregnancy, Prolonged	A term used to describe pregnancies that exceed the upper limit of a normal gestational period. In humans, a prolonged pregnancy is defined as one that extends beyond 42 weeks (294 days) after the first day of the last menstrual period (MENSTRUATION), or birth with gestational age of 41 weeks or more.	Prolonged Pregnancy,Pregnancies, Prolonged,Prolonged Pregnancies
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000653	Amniotic Fluid	A clear, yellowish liquid that envelopes the FETUS inside the sac of AMNION. In the first trimester, it is likely a transudate of maternal or fetal plasma. In the second trimester, amniotic fluid derives primarily from fetal lung and kidney. Cells or substances in this fluid can be removed for prenatal diagnostic tests (AMNIOCENTESIS).	Amniotic Fluid Index,Amniotic Fluid Indices,Amniotic Fluids,Fluid Index, Amniotic,Fluid Indices, Amniotic,Fluid, Amniotic,Fluids, Amniotic,Index, Amniotic Fluid,Indices, Amniotic Fluid