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Serum testosterone levels are not elevated in patients with ankylosing spondylitis. 1998

E J Giltay, and C Popp-Snijders, and D van Schaardenburg, and B J Dekker-Saeys, and L J Gooren, and B A Dijkmans
Institute of Endocrinology, Reproduction and Metabolism, and the Department of Rheumatology, Vrije Universiteit Hospital, Amsterdam, The Netherlands.

OBJECTIVE Studies in patients with ankylosing spondylitis (AS) describe slightly elevated serum testosterone levels, but these studies were not properly controlled for possible confounders. METHODS In a case-control study serum levels of sex steroids, luteinizing hormone, and sex hormone binding globulin (SHGB) were measured in patients with AS and in age and sex matched controls. The body mass index, smoking status, use of alcohol, and fat intake were recorded. RESULTS Testosterone levels measured in serum extracts did not differ in 50 male patients with AS compared to controls (mean +/- SD 16 +/- 4 vs 15 +/- 5 nmol/l, respectively; p = 0.54). In unextracted serum, however, male patients showed elevated testosterone (p < 0.001) and dehydroepiandrosterone sulfate levels (p = 0.003), even after controlling for confounders (p < 0.001). One of 10 female patients had an elevated testosterone level in unextracted serum. The 17 male users and one of the 2 female users of phenylbutazone had the highest testosterone levels in unextracted serum, and all showed a significant decline after extraction. Serum levels of other sex steroids, luteinizing hormone, and SHGB did not differ significantly between patients and controls. CONCLUSIONS Serum testosterone levels are not elevated in male patients with AS. Spuriously elevated testosterone levels in unextracted serum might be related to the use of phenylbutazone in our patient sample.

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
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010653 Phenylbutazone A butyl-diphenyl-pyrazolidinedione that has anti-inflammatory, antipyretic, and analgesic activities. It has been used in ANKYLOSING SPONDYLITIS; RHEUMATOID ARTHRITIS; and REACTIVE ARTHRITIS. Diphenylbutazone,Fenilbutazon,Butacote,Butadion,Butadione,Butapirazol,Butapyrazole,Butazolidin
D002097 C-Reactive Protein A plasma protein that circulates in increased amounts during inflammation and after tissue damage. C-Reactive Protein measured by more sensitive methods often for coronary heart disease risk assessment is referred to as High Sensitivity C-Reactive Protein (hs-CRP). High Sensitivity C-Reactive Protein,hs-CRP,hsCRP,C Reactive Protein,High Sensitivity C Reactive Protein
D003627 Data Interpretation, Statistical Application of statistical procedures to analyze specific observed or assumed facts from a particular study. Data Analysis, Statistical,Data Interpretations, Statistical,Interpretation, Statistical Data,Statistical Data Analysis,Statistical Data Interpretation,Analyses, Statistical Data,Analysis, Statistical Data,Data Analyses, Statistical,Interpretations, Statistical Data,Statistical Data Analyses,Statistical Data Interpretations
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
D004986 Ether A mobile, very volatile, highly flammable liquid used as an inhalation anesthetic and as a solvent for waxes, fats, oils, perfumes, alkaloids, and gums. It is mildly irritating to skin and mucous membranes. Diethyl Ether,Ether, Ethyl,Ethyl Ether,Ether, Diethyl
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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