Effects of progesterone and estradiol on aminopeptidase A (AAP) and leucine aminopeptidase (LAP) activities in the pregnancy serum and placenta of the rat. 1989

O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
Department of Obstetrics and Gynecology, Nagoya University School of Medicine, Japan.

We investigated the effects of estradiol and progesterone on placental aminopeptidase A and leucine aminopeptidase activities in pregnant rats. Estradiol (0.5, 1.0 and 2 mg/day) plus progesterone (5, 10 and 20 mg/day) was given for five days starting from the 16th day. Changes in both enzyme activities in the serum, placental cytosol and microsome caused by the steroids were analyzed. Aminopeptidase A activities in all three compartments and leucine aminopeptidase activities in the serum and cytosol were stimulated by estradiol (1.0 mg/day) plus progesterone (10 mg/day). Since we previously found that the placental aminopeptidases degrade peptide hormones, our present study suggests that steroids effect the metabolism of peptide hormones of fetal and/or maternal origin.

UI MeSH Term Description Entries
D007931 Leucyl Aminopeptidase A zinc containing enzyme of the hydrolase class that catalyzes the removal of the N-terminal amino acid from most L-peptides, particularly those with N-terminal leucine residues but not those with N-terminal lysine or arginine residues. This occurs in tissue cell cytosol, with high activity in the duodenum, liver, and kidney. The activity of this enzyme is commonly assayed using a leucine arylamide chromogenic substrate such as leucyl beta-naphthylamide. Cytosol Aminopeptidase,Leucine Aminopeptidase,L-Leucylnaphthylamidase,Methoxyleucine Aminopeptidase,Peptidase S,Zinc-Manganese-Leucine Aminopeptidase,Aminopeptidase, Cytosol,Aminopeptidase, Leucine,Aminopeptidase, Leucyl,Aminopeptidase, Methoxyleucine,Aminopeptidase, Zinc-Manganese-Leucine,Zinc Manganese Leucine Aminopeptidase
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
D011270 Pregnancy, Animal The process of bearing developing young (EMBRYOS or FETUSES) in utero in non-human mammals, beginning from FERTILIZATION to BIRTH. Animal Pregnancies,Animal Pregnancy,Pregnancies, Animal
D011374 Progesterone The major progestational steroid that is secreted primarily by the CORPUS LUTEUM and the PLACENTA. Progesterone acts on the UTERUS, the MAMMARY GLANDS and the BRAIN. It is required in EMBRYO IMPLANTATION; PREGNANCY maintenance, and the development of mammary tissue for MILK production. Progesterone, converted from PREGNENOLONE, also serves as an intermediate in the biosynthesis of GONADAL STEROID HORMONES and adrenal CORTICOSTEROIDS. Pregnenedione,Progesterone, (13 alpha,17 alpha)-(+-)-Isomer,Progesterone, (17 alpha)-Isomer,Progesterone, (9 beta,10 alpha)-Isomer
D004958 Estradiol The 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position. Estradiol-17-beta is the most potent form of mammalian estrogenic steroids. 17 beta-Estradiol,Estradiol-17 beta,Oestradiol,17 beta-Oestradiol,Aerodiol,Delestrogen,Estrace,Estraderm TTS,Estradiol Anhydrous,Estradiol Hemihydrate,Estradiol Hemihydrate, (17 alpha)-Isomer,Estradiol Monohydrate,Estradiol Valerate,Estradiol Valeriante,Estradiol, (+-)-Isomer,Estradiol, (-)-Isomer,Estradiol, (16 alpha,17 alpha)-Isomer,Estradiol, (16 alpha,17 beta)-Isomer,Estradiol, (17-alpha)-Isomer,Estradiol, (8 alpha,17 beta)-(+-)-Isomer,Estradiol, (8 alpha,17 beta)-Isomer,Estradiol, (9 beta,17 alpha)-Isomer,Estradiol, (9 beta,17 beta)-Isomer,Estradiol, Monosodium Salt,Estradiol, Sodium Salt,Estradiol-17 alpha,Estradiol-17beta,Ovocyclin,Progynon-Depot,Progynova,Vivelle,17 beta Estradiol,17 beta Oestradiol,Estradiol 17 alpha,Estradiol 17 beta,Estradiol 17beta,Progynon Depot
D005260 Female Females
D000626 Aminopeptidases A subclass of EXOPEPTIDASES that act on the free N terminus end of a polypeptide liberating a single amino acid residue. EC 3.4.11. Aminopeptidase
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D043384 Glutamyl Aminopeptidase A ZINC-dependent membrane-bound aminopeptidase that catalyzes the N-terminal peptide cleavage of GLUTAMATE (and to a lesser extent ASPARTATE). The enzyme appears to play a role in the catabolic pathway of the RENIN-ANGIOTENSIN SYSTEM. Aminopeptidase A,Angiotensinase A,Aspartate Aminopeptidase,Aspartyl Aminopeptidase,Aminopeptidase, Aspartate,Aminopeptidase, Aspartyl,Aminopeptidase, Glutamyl

Related Publications

O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
May 1962, Radiology,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
January 1964, Archivio italiano delle malattie dell'apparato digerente,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
September 1962, Il Fegato,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
December 1984, Nihon Sanka Fujinka Gakkai zasshi,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
September 1993, Research communications in chemical pathology and pharmacology,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
March 2000, Life sciences,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
December 1961, Acta histochemica,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
January 1977, Padiatrie und Grenzgebiete,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
March 1978, Minerva ginecologica,
O Kurauchi, and S Mizutani, and S Nomura, and R Hotta, and Y Ito, and Y Asada, and M Furuhashi, and M Kasugai, and Y Tomoda
June 1982, Clinical biochemistry,
Copied contents to your clipboard!