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Deviche P, Desaivre S, Giraudeau M. Experimental Manipulation of Corticosterone Does Not Influence the Clearance Rate of Plasma Testosterone in Birds. Physiol Biochem Zool 2017; 90:575-582. [DOI: 10.1086/693043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kowalski WB, Valle RF, Chatterton RT. Response of the Primate Secretory Endometrium to Subchronic Hypercortisolemia. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/107155769700400307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | - Rafael F. Valle
- Department of Obstetrics and Gynecology, Northwestern University Medical School, Chicago, Illinois
| | - Robert T. Chatterton
- Department of Obstetrics and Gynecology, Northwestern University Medical School, 333 East Superior Street, Chicago, IL 60611
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Jeffray TM, Marinoni E, Ramirez MM, Bocking AD, Challis JR. Effect of prenatal betamethasone administration on maternal and fetal corticosteroid-binding globulin concentrations. Am J Obstet Gynecol 1999; 181:1546-51. [PMID: 10601941 DOI: 10.1016/s0002-9378(99)70402-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE This study was undertaken to examine the effects of prenatal betamethasone administration on corticosteroid-binding globulin concentrations in maternal and fetal plasma and amniotic fluid. STUDY DESIGN Two groups of patients with preterm labor at 24 to 35 weeks' gestation who were receiving prenatal betamethasone (2 intramuscular doses of 12 mg) were studied. Maternal plasma was obtained before and at variable intervals until 1 week after betamethasone administration. Umbilical cord blood and amniotic fluid samples were collected at the time of delivery. Samples were also collected from patients at risk for preterm delivery who did not receive glucocorticoids. RESULTS Betamethasone suppressed maternal cortisol concentration by >70% within 24 hours of injection but did not significantly alter corticosteroid-binding capacity or relative concentrations of corticosteroid-binding globulin isoforms in either maternal or umbilical cord plasma. Betamethasone reduced corticosteroid-binding capacity in amniotic fluid within 24 hours of injection, and values remained suppressed 1 week after treatment. CONCLUSION Maternal and fetal plasma corticosteroid-binding globulin concentrations were unchanged after maternal betamethasone administration at 24 to 32 weeks' gestation but amniotic fluid corticosteroid-binding globulin concentrations decreased significantly, suggesting different sites of either corticosteroid-binding globulin production or regulation or both.
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Affiliation(s)
- T M Jeffray
- Department of Physiology, University of Toronto, Ontario, Canada
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Hampl R, Lapcík O, Sulcová J, Stárka L, Kalvachová B, Dvoráková M, Nĕmcová D, Hoza J. The effect of long-term glucocorticoid therapy on glucocorticoid receptor content and on steroid response to ACTH. J Steroid Biochem Mol Biol 1994; 48:81-7. [PMID: 8136309 DOI: 10.1016/0960-0760(94)90253-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The effect of long-term glucocorticoid therapy for systemic diseases on glucocorticoid receptor (GR) content and on basal and ACTH-stimulated levels of plasma and salivary cortisol 17 alpha-hydroxy-progesterone, androstenedione, 11 beta-hydroxyandrostenedione, DHEA, its sulfate and sex hormone-binding globulin (SHBG), as well as on basal levels of aldosterone, was investigated in a group of 24 children treated with prednisone for at least 8 months. The therapy was interrupted 24 h before the ACTH test and before plasma and saliva sampling. The control group consisted of 21 healthy children of corresponding age and sex. The patients were divided into two subgroups with normal and subnormal basal cortisolemia, they also differed in their response to ACTH. The GR levels in patient groups were indistinguishable from those found in controls. No correlation was found between GR content and basal levels of the above steroids or their response to ACTH. The best markers, apart from basal cortisolemia, for evaluation of the degree of suppression of adrenal function appeared to be the response of salivary (but not of plasma) cortisol and 17 alpha-hydroxy-progesterone to ACTH. Surprisingly, significantly lower levels of SHBG levels, which rose markedly after ACTH, were found in all the patients.
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Affiliation(s)
- R Hampl
- Institute of Endocrinology, Národní, Prague
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Longcope C, Bukowski C, Tast J. Estradiol, progesterone, and sex hormone‐binding globulin in female rhesus monkeys (
Macaca mulatta
). J Med Primatol 1993. [DOI: 10.1111/j.1600-0684.1993.tb00678.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Longcope
- Department of Obstetrics and GynecologyUniversity of Massachusetts Medical SchoolWorcesterMA01655USA
- Department of MedicineUniversity of Massachusetts Medical SchoolWorcesterMA01655USA
| | - C. Bukowski
- Department of Obstetrics and GynecologyUniversity of Massachusetts Medical SchoolWorcesterMA01655USA
| | - J. Tast
- Department of Animal MedicineUniversity of Massachusetts Medical SchoolWorcesterMA01655USA
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Chatterton RT, Kazer RR, Rebar RW. Depletion of luteal phase serum progesterone during constant infusion of cortisol phosphate in the cynomolgus monkey*†*Supported by grant HD 21921 from the National Institutes of Health, Bethesda, Maryland.†Presented at the 71st Annual Meeting of the Endocrine Society, Seattle, Washington, June 21, 1989. Fertil Steril 1991. [DOI: 10.1016/s0015-0282(16)54556-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Hudson RW, Lochnan HA, Danby FW, Margesson LJ, Strang BK, Kimmett SM. 11β-hydroxyandrostenedione: a marker of adrenal function in hirsutism**Supported by the Physicians of Ontario through a grant from the Physicians’ Services Incorporated Foundation, Toronto, Ontario, Canada.††Presented in part at the 35th Annual Meeting of the Canadian Fertility and Andrology Society, Vancouver, British Columbia, Canada, November 9 to 11, 1989. Fertil Steril 1990. [DOI: 10.1016/s0015-0282(16)54006-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Kottler ML, Domingo M, Tardivel-Lacombe J, Egloff M, Dang CD, Degrelle H. Regulation of plasma corticosteroid-binding globulin in adult cynomolgus monkey (Macaca fascicularis) during different reproductive states. JOURNAL OF STEROID BIOCHEMISTRY 1990; 36:575-82. [PMID: 2214775 DOI: 10.1016/0022-4731(90)90175-r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The plasma concentration of the corticosteroid-binding globulin (mCBG) has been measured in Macaca fascicularis, during different stages of reproduction and under hormonal treatments. The mCBG level was determined by a specific electroimmunoassay. There was no difference between females in the follicular phase and intact males; mCBG concentrations were respectively (mean +/- SEM) 469 +/- 53 and 443 +/- 25.6 nmol/l. The mCBG levels levels were similar during both the luteal (469 +/- 33.5 nmol/l) and the follicular phase (469 +/- 53 nmol/l). Compared to intact males, the mCBG levels were higher (P less than 0.05) in castrated males (527 +/- 6.6 nmol/l). During gestation, no systematic variations were found and the mCBG levels were not statistically different from the values found during the follicular phase. When estradiol benzoate was administered to castrated animals, the mCBG concentrations increased rapidly. In contrast, the values were reduced slightly by testosterone treatment. The sex-steroid action on the mCBG levels was discussed and compared with the mSBP levels. We question also, the mechanisms involved in the regulation of the mCBG levels during pregnancy.
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Affiliation(s)
- M L Kottler
- Laboratoire de Biochimie Endocrinienne, Paris, France
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Juchem M, Köppe K, Pollow K. An enzyme-linked immunosorbent assay (ELISA) for human corticosteroid-binding globulin. JOURNAL OF STEROID BIOCHEMISTRY 1989; 33:889-93. [PMID: 2601333 DOI: 10.1016/0022-4731(89)90236-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A specific and sensitive enzyme-linked immunosorbent assay (ELISA) of the "sandwich-type" for human corticosteroid-binding globulin was developed. A polyclonal rabbit anti-CBG antibody is immobilised to a microtitre plate. Following incubation of standards and samples a second monospecific rabbit anti-CBG antibody, labelled with alkaline phosphatase, is added. After colour development the microtitre plate is read at 405 nm wavelength. The assay shows good agreement to CBG binding capacity assay and commercially available RIA.
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Affiliation(s)
- M Juchem
- Abteilung für Experimentelle Endokrinologie, Johannes Gutenberg Universität Mainz, F.R.G
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Forest MG, Lecoq A, David M, Pugeat M. Effects of human chorionic gonadotropin, androgens, adrenocorticotropin hormone, dexamethasone and hyperprolactinemia on plasma sex steroid-binding protein. Ann N Y Acad Sci 1988; 538:214-34. [PMID: 2847619 DOI: 10.1111/j.1749-6632.1988.tb48867.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This presentation reports the effects of androgens, glucocorticoids and some pituitary hormones on plasma sex steroid-binding protein (SBP). The latter was measured by a solid phase method after desteroidation of the plasma. An hCG test (1500 I.U. every other day X 7) was given to 60 boys. In the children with a normal testosterone (T) rise, plasma SBP decreased (% of basal values) either significantly (38.3 +/- 9.3%, group A; n = 29), or moderately (13.4 +/- 4.4%, group B; n = 9) or did not change (-1.6 +/- 6.4%, group C; n = 10). In the 3 infants tested at an age when SBP normally rise sharply, hCG partially prevented this rise. The administration of either fluoxymesterone (10 mg/m2 for 10 days) or depot-T (4 I.M. injections of 100 mg/m2 every 2 weeks) induced a significant drop (about 2-fold) in plasma SBP in a control group of infants or children, but did not change SBP in 3 infants with the androgen insensitivity syndrome. A single injection of 0.25 mg of ACTH did not significantly alter SBP levels. In contrast, at the end of a 3-day ACTH test (0.5 mg/m2 12 hourly X 6) SBP levels had significantly decreased (mean 35% fall) with no age or sex differences, and with no correlation with the cortisol levels reached. However, the lowering effect of ACTH on SBP levels is likely mediated by glucocorticoids, since its effect was reproduced by high doses (8 mg/day for 3 days) of dexamethasone given at once or after 3 days of treatment at lower dose (20 micrograms/kg BW). It would appear that the depressive effect of ACTH and/or dexamethasone is observed for a threshold dose of glucocorticoids (greater than 5-fold physiological levels) and a certain time (greater than or equal to 3 days) of exposure. The mechanism by which androgens and glucocorticoids lower SBP levels in vivo is not yet understood. From recent experiments, showing that both stimulate the secretion of SBP in hepatoma cells in vitro, it would appear that both hormones may alter SBP metabolism. In a selected population of hyperprolactinemic women, with normal weight and no hirsutism, plasma SBP levels were found in the normal female range. The discrepancy with previous studies in the literature may be explained by differences in the degree of hyperprolactinemia and/or associated hyperandrogenim. This study further documents the multifactorial and intricated hormonal influences involved in the regulation of plasma SBP in vivo.
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Affiliation(s)
- M G Forest
- INSERM U.34, Hôpital Debrousse, Lyon, France
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Frairia R, Agrimonti F, Fortunati N, Fazzari A, Gennari P, Berta L. Influence of naturally occurring and synthetic glucocorticoids on corticosteroid-binding globulin-steroid interaction in human peripheral plasma. Ann N Y Acad Sci 1988; 538:287-303. [PMID: 3056191 DOI: 10.1111/j.1749-6632.1988.tb48873.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- R Frairia
- Dipartimento di Biomedicina, University of Turin, Italy
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Dexamethasone suppresses sex-hormone binding globulin**Supported by the National Institutes of Health, grant 1S0RR08244-01, Bethesda, Maryland; and by the Reproductive Endocrine Laboratory, Department of Obstetrics and Gynecology, Howard University College of Medicine, Washington, D.C. Fertil Steril 1988. [DOI: 10.1016/s0015-0282(16)59650-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bourget C, Femino A, Franz C, Hastings S, Longcope C. The effects of l-thyroxine and dexamethasone on steroid dynamics in male cynomologous monkeys. JOURNAL OF STEROID BIOCHEMISTRY 1987; 28:575-9. [PMID: 3682824 DOI: 10.1016/0022-4731(87)90518-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Male cynomologous monkeys (M. fascicularis) were infused with [3H]androgens, [14C]estrogens and [3H]cortisol before and after the administration of l-thyroxine, (l-T4) 150 micrograms/day for 6 wk, dexamethasone 8 mg every 8 h for 3 doses and dexamethasone 1.0 mg/day for 8 days. Blood samples were obtained before each of the infusions and analyzed for endogenous T, A, E1, E2 and F concentrations, % free T and % free E2, sex hormone-binding globulin (SHBG) and cortisol binding globulin (CBG) capacity. When l-T4 was being administered, T4 and triiodothyronine (T3) concentrations were also measured. Blood samples were obtained during the infusions and analyzed for radioactivity as testosterone (T), androstenedione (A), dihydrotestosterone (DHT), estradiol (E1), estrone (E2), and cortisol (F). All urine was collected for 96 h and an aliquot of the pooled urine was analyzed for radioactivity as estrone and estradiol glucuronide. The administration of l-T4 for 6 wk to 3 monkeys resulted in a marked rise in T4 and T3 levels, from 4.8 +/- 0.4 micrograms/dl and from 136 +/- 6 to 515 +/- 71 ng/dl, respectively. MCRT, MCRE2 and MCRE1 did not change, but MCRA values increased slightly and MCRF increased 2-3 fold. [rho]T.E2 did not change but [rho]A.E1BM showed a slight but significant increase. The inter-conversions between the androgens and between the estrogens were not altered. There was a 2-3-fold increase in SHBG and a decrease in %FT but no change in %FE2 or CBG. The concentrations of T, A and DHT rose but there was no trend in the levels of the estrogens. The administration of dexamethasone 8 mg every 8 h for 3 doses or 1 mg/day for 8 days caused no changes in the MCRs for T, A, E1 and E2 but did cause a significant decrease in MCRF. Measurement of splanchnic and peripheral tissue extractions before and after acute dexamethasone administration in 1 monkey showed that the decrease in MCRF was the result of a marked decrease, 11-2%, in splanchnic extraction of F. The extractions of T and E2 were relatively unaffected. The concentrations of T and F fell but E2 remained the same. % FT and % FE2 rose slightly and the concentrations of SHBG and CBG were unchanged. The androgen interconversions and estrogen interconversions were not affected but [rho]T,E2BM and [rho]A,E1BM showed slight decreases.(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- C Bourget
- Department of Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester 01605
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Mercier-Bodard C, Baulieu EE. Hormonal control of SBP in human hepatoma cells. JOURNAL OF STEROID BIOCHEMISTRY 1986; 24:443-8. [PMID: 3009989 DOI: 10.1016/0022-4731(86)90098-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Since it is currently believed that the biosynthesis of human sex steroid binding plasma protein (SBP) takes place in the liver, the secretion of this protein and its hormonal control were studied in a human hepatoma cell line. The human hepatoma-derived cell line, Hep G2, and a clone, H5A, isolated from Hep G2, were both found to secrete SBP-like protein. This protein had the same dihydrotestosterone binding parameters as plasma SBP, with a Kd ranging from 0.3 to 1 nM at 4 degrees C, and it cross-reacted with a monospecific goat anti-human SBP antiserum. In a chemically defined medium, SBP-like protein secretion was stimulated approx 2-fold by estradiol (1 microM) whereas a smaller concentration of estrogen (100 nM) has only a slight effect. A combined incubation with estradiol (100 nM) and triiodothyronine (10 nM) increased SBP-like protein secretion more than estradiol (1 microM) alone. In response to dexamethasone (100 nM) or tamoxifen (100 nM) treatment, a 3-fold increase is obtained. Therefore, these human parenchymal cells should provide a potent material for investigation of the hormonal regulation of SBP gene.
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