Substantial urinary concentrations of material resembling beta-core fragment of chorionic gonadotropin beta-subunit in mid-menstrual cycle

Article

Neven, P., Iles, R., Howes, I., Sharma, K., Shepherd, J., Edwards, R., Collins, W. and Chard, T. 1993. Substantial urinary concentrations of material resembling beta-core fragment of chorionic gonadotropin beta-subunit in mid-menstrual cycle. Clinical Chemistry. 39 (9), pp. 1857-1860.
TypeArticle
TitleSubstantial urinary concentrations of material resembling beta-core fragment of chorionic gonadotropin beta-subunit in mid-menstrual cycle
AuthorsNeven, P., Iles, R., Howes, I., Sharma, K., Shepherd, J., Edwards, R., Collins, W. and Chard, T.
Abstract

We measured the day-to-day variations in concentrations of beta-core, luteinizing hormone (LH), and alpha-subunit in urine during the menstrual cycle. The alpha-subunit concentrations showed a pattern similar to that of the LH concentrations. beta-Core-like material was increased during and up to 3 to 4 days after the surge in urine LH. The urine LH concentration was associated with the presence of beta-core immunoreactivity during the urine LH peak. Chromatography showed that, at the peak LH concentration and at 2 days after the LH peak, beta-core immunoreactivity could be accounted for by the presence of a peptide of low molecular mass similar to the beta-core molecule of hCG, but probably originating from the degradation of LH. The prolonged excretion of gonadotropin metabolites in the midcycle must be considered when beta-core is being assessed as a tumor marker.

PublisherAmerican Association for Clinical Chemistry, Inc.
JournalClinical Chemistry
ISSN0009-9147
Publication dates
PrintSep 1993
Publication process dates
Deposited02 Nov 2009
Output statusPublished
Web address (URL)http://www.clinchem.org/cgi/content/abstract/39/9/1857
LanguageEnglish
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Reduction of bladder cancer cell growth in response to hCGb CTP37 vaccinated mouse serum.
Butler, S., Staite, E. and Iles, R. 2003. Reduction of bladder cancer cell growth in response to hCGb CTP37 vaccinated mouse serum. Oncology research. 14 (2), pp. 93-100.
Identification of post-translational modifications resulting from LH beta polymorphisms by matrix-assisted laser desorption time-of-flight mass spectrometric analysis of pituitary LH beta core fragment
Jacoby, E., Kicman, A. and Iles, R. 2003. Identification of post-translational modifications resulting from LH beta polymorphisms by matrix-assisted laser desorption time-of-flight mass spectrometric analysis of pituitary LH beta core fragment. Journal of molecular endocrinology. 30 (2), pp. 239-252. https://doi.org/10.1677/jme.0.0300239
The recently identified homodimeric beta-beta subunit of human chorionic gonadotrophin (hCGbb) is no more biologically active than the free beta subunit (hCGb)
Butler, S. and Iles, R. 2004. The recently identified homodimeric beta-beta subunit of human chorionic gonadotrophin (hCGbb) is no more biologically active than the free beta subunit (hCGb). Tumor Biology. 25 (1-2), pp. 18-23. https://doi.org/10.1159/000077719
Serum amino-terminal propeptide of type 1 procollagen (P1NP) in prostate cancer: a potential predictor of bone metastases and prognosticator for disease progression and survival.
Thurairaja, R., Iles, R., Jefferson, K., McFarlane, J. and Persad, R. 2006. Serum amino-terminal propeptide of type 1 procollagen (P1NP) in prostate cancer: a potential predictor of bone metastases and prognosticator for disease progression and survival. Urologia internationalis. 76 (1), pp. 67-71.
Immunoassay detection of human chorionic gonadotrophin beta (hCGb) expression by prostate cancer is of no clinical significance
Otite, U., Baithun, S., Chinegwundon, F., Nargund, V. and Iles, R. 2006. Immunoassay detection of human chorionic gonadotrophin beta (hCGb) expression by prostate cancer is of no clinical significance. Tumor Biology. 27, pp. 181-186.
Gonadotropins and prostate cancer: revisited.
Thwaini, A., Naase, M., Chinegwundon, F., Baithun, S., Ghali, L., Shergill, I. and Iles, R. 2006. Gonadotropins and prostate cancer: revisited. Urologia internationalis. 77 (4), pp. 289-296. https://doi.org/10.1159/000096330
Ectopic hCGbeta expression by epithelial cancer: malignant behaviour, metastasis and inhibition of tumor cell apoptosis
Iles, R. 2007. Ectopic hCGbeta expression by epithelial cancer: malignant behaviour, metastasis and inhibition of tumor cell apoptosis. Molecular and Cellular Endocrinology. 260-26, pp. 264-270. https://doi.org/10.1016/j.mce.2006.02.019
An introduction to mass spectrometry based proteomics-detection and characterization of gonadotropins and related molecules
Kicman, A., Parkin, M. and Iles, R. 2007. An introduction to mass spectrometry based proteomics-detection and characterization of gonadotropins and related molecules. Molecular and Cellular Endocrinology. 260-26, pp. 212-227. https://doi.org/10.1016/j.mce.2006.02.022
Towards the development of an electrochemical biosensor for hCGβ detection
Kassanos, P., Iles, R., Bayford, R. and Demosthenous, A. 2008. Towards the development of an electrochemical biosensor for hCGβ detection. Physiological Measurement. 29 (6), pp. S241-S254. https://doi.org/10.1088/0967-3334/29/6/S21
The role of glycoprotein hormones in endometrial cancer. (in Part 7: Hormones & hormone receptor)
Bax, C., Davies, S., Chatzaki, E., Butler, S. and Iles, R. 2003. The role of glycoprotein hormones in endometrial cancer. (in Part 7: Hormones & hormone receptor). in: Nishida, M. and Kuramoto, H. (ed.) Cell and molecular biology of endometrial carcinoma. London Springer. pp. 195-206
Molecular cell biology and genetic disorders
Iles, R. 2009. Molecular cell biology and genetic disorders. in: Kumar, P. and Clark, M. (ed.) Kumar & Clark’s clinical medicine. Edinburgh Elsevier Saunders. pp. 19-52
Chapter 1: Basic sciences: the cell.
Iles, R. 2008. Chapter 1: Basic sciences: the cell. in: Nargund, V., Raghavan, D. and Sandler, H. (ed.) Urological oncology. London Springer. pp. 3-36
Human chorionic gonadotropin isoforms in the diagnosis of ectopic pregnancy
Iles, R., Borrelli, P., Butler, S. and Staite, E. 2003. Human chorionic gonadotropin isoforms in the diagnosis of ectopic pregnancy. Clinical Chemistry. 49 (12), pp. 2045-2049. https://doi.org/10.1373/clinchem.2003.022095
The free monomeric beta subunit of human chorionic gonadotrophin (hCG beta) and the recently identified homodimeric beta-beta subunit (hCG beta beta) both have autocrine growth effects
Butler, S. and Iles, R. 2004. The free monomeric beta subunit of human chorionic gonadotrophin (hCG beta) and the recently identified homodimeric beta-beta subunit (hCG beta beta) both have autocrine growth effects. Tumor Biology. 25 (1-2), pp. 18-23. https://doi.org/10.1159/000077719
Enhanced affinity capture MALDI-TOF MS: orientation of an immunoglobulin G using recombinant protein G
Iles, R., Bansal, S., Jacoby, E., Neubert, H., Cowan, D. and Kicman, A. 2002. Enhanced affinity capture MALDI-TOF MS: orientation of an immunoglobulin G using recombinant protein G. Analytical Chemistry. 74 (15), pp. 3677-3683. https://doi.org/10.1021/ac025558z
Identification of placental transforming growth factor-beta and bikunin metabolites as contaminants of pharmaceutical human chorionic gonadotrophin preparations by proteomic techniques
Iles, R., Kicman, A., Malatos, S. and Neubert, H. 2005. Identification of placental transforming growth factor-beta and bikunin metabolites as contaminants of pharmaceutical human chorionic gonadotrophin preparations by proteomic techniques. Molecular and Cellular Proteomics. 4 (7), pp. 984-992. https://doi.org/10.1074/mcp.M500085-MCP200
Ectopic human chorionic gonadotropin beta secretion by epithelial tumors and human chorionic gonadotropin beta-induced apoptosis in Kaposi's sarcoma: is there a connection?
Iles, R. and Butler, S. 2003. Ectopic human chorionic gonadotropin beta secretion by epithelial tumors and human chorionic gonadotropin beta-induced apoptosis in Kaposi's sarcoma: is there a connection? Clinical Cancer Research. 9 (13), pp. 4666-4673.
Human granulosa-lutein cell in vitro production of progesterone, inhibin A, inhibin B, and activin A are dependent on follicular size and not the presence of the oocyte
Wen, S., Tozer, A., Li, D., Docherty, S., Al-Shawaf, T. and Iles, R. 2008. Human granulosa-lutein cell in vitro production of progesterone, inhibin A, inhibin B, and activin A are dependent on follicular size and not the presence of the oocyte. Fertility and Sterility. 89 (5), pp. 1406-1413. https://doi.org/10.1016/j.fertnstert.2007.03.086
Follicular fluid levels of inhibin A, inhibin B, and activin A levels reflect changes in follicle size but are not independent markers of the oocyte's ability to fertilize
Wen, S., Tozer, A., Butler, S., Bell, C., Docherty, S. and Iles, R. 2006. Follicular fluid levels of inhibin A, inhibin B, and activin A levels reflect changes in follicle size but are not independent markers of the oocyte's ability to fertilize. Fertility and Sterility. 85 (6), pp. 1723-1729. https://doi.org/10.1016/j.fertnstert.2005.11.058
The effects of 'coasting' on follicular fluid concentrations of vascular endothelial growth factor in women at risk of developing ovarian hyperstimulation syndrome
Tozer, A., Iles, R., Iammarrone, E., Gillott, C., Al-Shawaf, T. and Grudzinskas, J. 2004. The effects of 'coasting' on follicular fluid concentrations of vascular endothelial growth factor in women at risk of developing ovarian hyperstimulation syndrome. Human Reproduction. 19 (3), pp. 522-528. https://doi.org/10.1093/humrep/deh096
Characteristics of populations of granulosa cells from individual follicles in women undergoing 'coasting' during controlled ovarian stimulation (COS) for IVF
Tozer, A., Iles, R., Iammarrone, E., Gillott, C., Wen, S., Al-Shawaf, T. and Grudzinskas, J. 2004. Characteristics of populations of granulosa cells from individual follicles in women undergoing 'coasting' during controlled ovarian stimulation (COS) for IVF. Human Reproduction. 19 (11), pp. 2561-2568. https://doi.org/10.1093/humrep/deh487