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  • 1
    Electronic Resource
    Electronic Resource
    Prognostic factors in medullary thyroid carcinoma: evaluation of 741 patients from the German Medullary Thyroid Carcinoma Register (1993)
    Springer
    Journal of molecular medicine 71 (1993), S. 7-12 
    Details
    ISSN: 1432-1440
    Keywords: Medullary thyroid carcinoma ; Prognostic factors ; Sporadic and familial form ; Age ; Sex ; Tumor stage at diagnosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A retrospective study of 741 patients with medullary thyroid carcinoma diagnosed between 1967 and 1991 was carried out by members of the German Medullary Thyroid Carcinoma Study Group to evaluate prognostic factors. A total of 559 patients (75%) were considered to have sporadic disease, and 182 (25%) had the familial type. The sex ratio (male to female) was 1:1.4 in sporadic disease patients, and the mean age at diagnosis was 45.9 years (range 5-81 years). For familial disease patients the sex ratio was 1:1.1, and the mean age at diagnosis was 33.4 (range 5–77 years). The follow-up time for 630 patients ranged from 1 month to 20.8 years (mean 13.0 years). The overall adjusted survival rate was 86.7% at 5 years and 64.2% at 10 years. In a univariate analysis the stage of disease at diagnosis, age, sex, and type of disease (sporadic, familial) were relevant prognostic factors, with a better prognosis for young female patients with familial disease and diagnosed at an early stage. In a multivariate proportional hazards analysis, the difference in the survival rate of patients with familial disease versus those with the sporadic form disappeared, while prognostic information provided by age and sex was still significant. The poorer prognosis of patients with sporadic medullary thyroid carcinoma may be related to the patients' older age at detection and more advanced tumor stage at diagnosis. There seems to be no difference in biological behavior between tumors of the sporadic and those of the familial type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00210956
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Levels of parathyroid hormone-related protein in hypercalcemia of malignancy: comparison of midregional radioimmunoassay and two-site immunoradiometric assay (1993)
    Springer
    Journal of molecular medicine 71 (1993), S. 31-36 
    Details
    ISSN: 1432-1440
    Keywords: Hypercalcemia of malignancy ; Parathyroid hormone-related protein ; Serum calcium ; Parathyroid hormones ; Immunoassay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Overproduction of parathyroid hormone-related protein (PTHrP) is a major cause of hypercalcemia of malignancy in patients with solid tumors. We measured plasma levels of the protein by a radioimmunoassay (RIA) against PTHrP(5384) and by an immunoradiometric assay (IRMA) against PTHrP(1–86). Of 16 affected patients 7 had elevated PTHrP levels in both assays and 4 had elevated levels in the RIA only. Median levels were about tenfold higher in these patients when measured by RIA (median of 34 versus 2.2 pmol/1). Measurements from both assays were, however, highly correlated with each other in this patient group (P〈0.01). PTHrP was not elevated in 10 normocalcemic patients with lung carcinoma. During long-term follow-up of a patient with a mesothelioma of the pleura, PTHrP levels measured with both assays decreased during chemotherapy in parallel with a normalization of serum calcium. In another hypercalcemic patient suffering from renal carcinoma, PTHrP measured by IRMA decreased by 40% within 12 h after nephrectomy, whereas PTHrP measured by RIA did not show a significant decline. Direct comparison of the assay results thus pointed to the existence of heterogeneity of circulating forms of PTHrP in plasma. In conclusion, both immunoassays detected elevated levels of PTHrP in a fraction of patients with hypercalcemia of malignancy and thus may be a tumor marker during treatment of malignancies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00210960
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Superior local tolerability of human versus salmon calcitonin preparations in young healthy volunteers (1991)
    Springer
    European journal of clinical pharmacology 41 (1991), S. 211-215 
    Details
    ISSN: 1432-1041
    Keywords: Hypocalcaemic effects ; human calcitonin ; salmon calcitonin ; tolerability ; adverse reactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Possible local and systemic adverse effects following administration of salmon (sCT) and human (hCT) calcitonin (CT) have been evaluated in a double-blind, within-subject, comparative trial in 30 young, healthy volunteers. Each subject received 0.25 and 0.5 mg hCT and 100 IU sCT s.c.. Adverse effects and hypocalcaemia were recorded 1, 3 and 6 h after each injection. Significantly fewer local adverse reactions were observed after hCT (20 or 33%) than after sCT (80%), possibly due to the different vehicles employed (mannitol solution and acetic acid). The most frequent systemic adverse effects were gastrointestinal (nausea, vomiting), which occurred in 80% after 1 h, independently of the CT — preparation used. Hypocalcaemic changes were generally small and lasted longer after sCT. It is concluded that the hCT preparations were better tolerated locally than sCT in young, healthy volunteers, and that there were no differences in the systemic side effects or hypocalcaemic activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00315432
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Therapie des Hirsutismus bei Frauen mit adrenalen Enzymdefekten der Steroidhormonbiosynthese: Vergleich von Dexamethason mit Cyproteronacetat (1990)
    Springer
    Journal of molecular medicine 68 (1990), S. 597-601 
    Details
    ISSN: 1432-1440
    Keywords: 3β-Hydroxysteroiddehydrogenase deficiency ; 21-Hydroxylase-deficiency ; Hirsutism ; Dexamethasone ; Cyproterone acetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In patients with adrenal hirsutism or enzyme deficiencies in steroidogenesis, elevated adrenal androgens could be normalized by dexamethasone. We were interested to see if dexamethasone would be as effective as cyproterone acetate in treating hirsutism in selected patients with adrenal pathogenesis. Therefore 28 patients with hirsutism of adrenal origin or enzyme deficiency were treated cyclically either with cyproterone acetate and ethinylestradiol (2 mg cyproterone acetate+0.035 mg ethinyl-estradiol days 1–21, +10mg cyproterone acetate days 1–15) (n=15) or with 0.25–0.5 mg dexamethasone daily at 10 pm (n=13). In the dexamethasone group there was a significant drop in dehydroepiandrosterone and dehydroepiandrosterone sulfate levels within 9 months, but there was a diminution in hirsutism in only four women (31%); in four out of seven menstrual irregularities decreased. In the cyproterone acetate group hirsutism diminished significantly in 66% (n=10) without suppression of adrenal androgens. Weight gain occurred in a few cases in both groups; other side effects developed in 33% in the cyproterone acetate group. Preselection of patients with hirsutism is useful with respect to diagnosis; adrenal pathogenesis should not generally indicate dexamethasone treatment of hirsutism unless there is a desire for pregnancy, because cyproterone acetate is a more powerful agent in reducing hair growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01660957
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    Paper (German National Licenses)
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