Pituitary response to luteinizing hormone-releasing hormone after induced abortion in the first and second trimesters. 1977

M E Domenzain, and A G Shapiro, and A A Bezjian, and W J LeMaire

Luteinizing hormone-releasing hormone (LHRH) (100 microng) was administered subcutaneously to healthy female volunteers 2 and 4 weeks after induced abortion in the first trimester (group A) and the midtrimester (group B). Four patients were studied in each group. The response to LHRH was determined in terms of plasma LH and follicle-stimulating hormone levels. Adequate pituitary response occurred in subjects of group A at both 2 and 4 weeks. In group B pituitary unresponsiveness was found at 2 weeks which persisted to some extent at 4 weeks. These data are in accord with the pituitary unresponsiveness observed after termination of pregnancy at term and suggest that the duration of pregnancy has an influence on the development of this unresponsiveness.

UI MeSH Term Description Entries
D007986 Luteinizing Hormone A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Luteinizing hormone regulates steroid production by the interstitial cells of the TESTIS and the OVARY. The preovulatory LUTEINIZING HORMONE surge in females induces OVULATION, and subsequent LUTEINIZATION of the follicle. LUTEINIZING HORMONE consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH and FSH), but the beta subunit is unique and confers its biological specificity. ICSH (Interstitial Cell Stimulating Hormone),Interstitial Cell-Stimulating Hormone,LH (Luteinizing Hormone),Lutropin,Luteoziman,Luteozyman,Hormone, Interstitial Cell-Stimulating,Hormone, Luteinizing,Interstitial Cell Stimulating Hormone
D007987 Gonadotropin-Releasing Hormone A decapeptide that stimulates the synthesis and secretion of both pituitary gonadotropins, LUTEINIZING HORMONE and FOLLICLE STIMULATING HORMONE. GnRH is produced by neurons in the septum PREOPTIC AREA of the HYPOTHALAMUS and released into the pituitary portal blood, leading to stimulation of GONADOTROPHS in the ANTERIOR PITUITARY GLAND. FSH-Releasing Hormone,GnRH,Gonadoliberin,Gonadorelin,LH-FSH Releasing Hormone,LHRH,Luliberin,Luteinizing Hormone-Releasing Hormone,Cystorelin,Dirigestran,Factrel,Gn-RH,Gonadorelin Acetate,Gonadorelin Hydrochloride,Kryptocur,LFRH,LH-RH,LH-Releasing Hormone,LHFSH Releasing Hormone,LHFSHRH,FSH Releasing Hormone,Gonadotropin Releasing Hormone,LH FSH Releasing Hormone,LH Releasing Hormone,Luteinizing Hormone Releasing Hormone,Releasing Hormone, LHFSH
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
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
D011261 Pregnancy Trimester, First The beginning third of a human PREGNANCY, from the first day of the last normal menstrual period (MENSTRUATION) through the completion of 14 weeks (98 days) of gestation. Early Placental Phase,Pregnancy, First Trimester,Trimester, First,Early Placental Phases,First Pregnancy Trimester,First Pregnancy Trimesters,First Trimester,First Trimester Pregnancies,First Trimester Pregnancy,First Trimesters,Phase, Early Placental,Phases, Early Placental,Placental Phase, Early,Placental Phases, Early,Pregnancies, First Trimester,Pregnancy Trimesters, First,Trimesters, First
D011262 Pregnancy Trimester, Second The middle third of a human PREGNANCY, from the beginning of the 15th through the 28th completed week (99 to 196 days) of gestation. Midtrimester,Pregnancy, Second Trimester,Trimester, Second,Midtrimesters,Pregnancies, Second Trimester,Pregnancy Trimesters, Second,Second Pregnancy Trimester,Second Pregnancy Trimesters,Second Trimester,Second Trimester Pregnancies,Second Trimester Pregnancy,Second Trimesters,Trimesters, Second
D005260 Female Females
D005640 Follicle Stimulating Hormone A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Follicle-stimulating hormone stimulates GAMETOGENESIS and the supporting cells such as the ovarian GRANULOSA CELLS, the testicular SERTOLI CELLS, and LEYDIG CELLS. FSH consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity. FSH (Follicle Stimulating Hormone),Follicle-Stimulating Hormone,Follitropin
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000028 Abortion, Induced Intentional removal of a fetus from the uterus by any of a number of techniques. (POPLINE, 1978) Embryotomy,Abortion (Induced),Abortion Failure,Abortion History,Abortion Rate,Abortion Technics,Abortion Techniques,Abortion, Drug-Induced,Abortion, Rivanol,Abortion, Saline-Solution,Abortion, Soap-Solution,Anti-Abortion Groups,Fertility Control, Postconception,Induced Abortion,Previous Abortion,Abortion Failures,Abortion Histories,Abortion Rates,Abortion Technic,Abortion Technique,Abortion, Drug Induced,Abortion, Previous,Abortion, Saline Solution,Abortion, Soap Solution,Abortions (Induced),Abortions, Drug-Induced,Abortions, Induced,Abortions, Previous,Abortions, Rivanol,Abortions, Saline-Solution,Abortions, Soap-Solution,Anti Abortion Groups,Anti-Abortion Group,Drug-Induced Abortion,Drug-Induced Abortions,Embryotomies,Failure, Abortion,Failures, Abortion,Group, Anti-Abortion,Groups, Anti-Abortion,Histories, Abortion,History, Abortion,Induced Abortions,Postconception Fertility Control,Previous Abortions,Rate, Abortion,Rates, Abortion,Rivanol Abortion,Rivanol Abortions,Saline-Solution Abortion,Saline-Solution Abortions,Soap-Solution Abortion,Soap-Solution Abortions,Technic, Abortion,Technics, Abortion,Technique, Abortion,Techniques, Abortion

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