testosterone/neoplasms

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Randomized controlled trial to evaluate transdermal testosterone in female cancer survivors with decreased libido; North Central Cancer Treatment Group protocol N02C3.

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BACKGROUND Decreased libido is one of several changes in sexual function that are often experienced by female cancer patients. Transdermal testosterone therapy has been associated with increased libido among estrogen-replete women who report low libido. METHODS In a phase III randomized,

Extended release, 6-month formulations of leuprolide acetate for the treatment of advanced prostate cancer: achieving testosterone levels below 20 ng/dl.

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BACKGROUND Luteinizing hormone-releasing hormone agonists such as leuprolide acetate (LA) are the most frequently utilized treatment of advanced prostate cancer as the regimen for achieving androgen deprivation therapy (ADT). The efficacy of LA is determined by extent of testosterone (T) suppression

Synthesis of a DNA-targeting nickel (II) complex with testosterone thiosemicarbazone which exhibits selective cytotoxicity towards human prostate cancer cells (LNCaP).

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Testosterone thiosemicarbazone, L and its nickel (II) complex 1 were synthesized and characterized by using FTIR, CHN, (1)H NMR, and X-ray crystallography. X-ray diffraction study confirmed the formation of L from condensation of testosterone and thiosemicarbazide. Mononuclear complex 1 is

Testosterone: its role in development of prostate cancer and potential risk from use as hormone replacement therapy.

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Evidence from studies in patients with prostate cancer of intermittent hormone therapy combined with results from rechallenge of hormone resistant patients with testosterone demonstrate that the majority of prostate cancers retain a similar degree of dependence on male sex hormone milieu as normal

Association between serum cortisol and testosterone levels, opioid therapy, and symptom distress in patients with advanced cancer.

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BACKGROUND Patients with advanced cancer often experience symptoms such as pain, anorexia, and fatigue. Opioid therapy for the management of cancer pain may result in neurohormonal dysfunction that may contribute to a patient's symptom burden. OBJECTIVE To examine the association between serum

Free testosterone drives cancer aggressiveness: evidence from US population studies.

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Cancer incidence and mortality are higher in males than in females, suggesting that some gender-related factors are behind such a difference. To analyze this phenomenon the most recent Surveillance, Epidemiology and End Results (SEER) database served to access cancer survival data for the US

To treat or not to treat with testosterone replacement therapy: a contemporary review of management of late-onset hypogonadism and critical issues related to prostate cancer.

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Over the last 10 years there has been a dramatic increase in the number of patients identified and treated with testosterone replacement therapy (TRT) for late-onset hypogonadism (LOH). By virtue of age, race, and family history, many of these patients are concurrently at risk for harboring indolent

Enzymatic responses of transplanted tumour cells towards estrogen, progesterone and testosterone.

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The influence of estrogen, progesterone and testosterone on the activities of alkaline and acid phosphatases, adenosine triphosphatase and succinate dehydrogenase were determined by cytochemical methods in sarcoma 180 and Ehrlich's carcinoma cells transplanted in male and female Swiss mice. The

Enzymatic responses of transplanted tumour cells towards estrogen, progesterone and testosterone.

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The effect of 7beta, 17alpha-dimethyltestosterone (calusteron) on testosterone metabolism in women with advanced breast cancer.

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Calusterone (7beta, 17alpha-dimethyltestosterone) is a 17-alkylated, orally active androgenic steroid used in the treatment of breast cancer. The effect of this steroid on the metabolism of 14C-testosterone and the excretion of endogenous urinary androgen metabolites has been studied in four

Estradiol formation from testosterone by continuously cultured human breast cancer cells.

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Two human breast cancer cell lines (MCF-7 and MDA-MB-231) and one cell line derived from normal human breast (HBL-100) were examined for the presence of aromatase activity by determining the amounts of [3H]estradiol ([3H]E2) formed by cell cultures incubated with [3H]testosterone. Aromatase activity

High incidence and histogenesis of seminal vesicle adenocarcinoma and lower incidence of prostate carcinomas in the Lobund-Wistar prostate cancer rat model using N-nitrosomethylurea and testosterone.

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The origin of chemically induced male accessory sex gland tumors was studied in Lobund-Wistar rats. Rats were treated at the age of 3 months with a single intravenous injection of 30 mg N-nitrosomethylurea (NMU)/kg body weight and given subcutaneous silastic implants filled with 40 mg testosterone

Enzalutamide inhibits testosterone-induced growth of human prostate cancer xenografts in zebrafish and can induce bradycardia.

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The zebrafish has become a popular human tumour xenograft model, particularly for solid tumours including prostate cancer (PCa). To date PCa xenotransplantation studies in zebrafish have not been performed in the presence of testosterone, even when employing androgen-dependent cell models, such as

A New Sustained-release, 3-Month Leuprolide Acetate Formulation Achieves and Maintains Castrate Concentrations of Testosterone in Patients With Prostate Cancer.

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This clinical trial investigated the effectiveness, pharmacokinetic properties, and safety profile of leuprolide acetate 22.5-mg depot, a new 3-month leuprolide depot formulation, as androgen deprivation therapy for patients with prostate cancer.A Phase

Effectiveness, pharmacokinetics, and safety of a new sustained-release leuprolide acetate 3.75-mg depot formulation for testosterone suppression in patients with prostate cancer: a Phase III, open-label, international multicenter study.

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BACKGROUND A microencapsulated, sustained-release formulation of leuprolide acetate 3.75 mg has been developed. OBJECTIVE This study investigated the effectiveness, pharmacokinetics, and safety profile of a 1-month leuprolide acetate 3.75-mg depot formulation for suppressing testosterone

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