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Non-polar extracts of sera from human males contain immunoreactive testosterone in a form that is released by mild alkaline hydrolysis. The non-polar derivative shows no immunoreactivity with testosterone antibody prior to hydrolysis. Hydrolyzed non-polar serum extracts from ten adult male volunteers contained 2.0 +/- 0.8 (SD) ng/mL of testosterone. Neither(More)
The later stages of cochlear differentiation and the developmental onset of hearing require thyroid hormone. Although thyroid hormone receptors (TRs) are a prerequisite for this process, it is likely that other factors modify TR activity during cochlear development. The mouse cochlea expresses type 2 deiodinase (D2), an enzyme that converts thyroxine, the(More)
Aalinkeel et al. (1) have recently reported that gene expression of angiogenic factors correlates with metastatic potential of prostate cancer cells. The rationale for the study of Aalinkeel et al. is that a variety of growth factors, among them interleukin-8 (il-8), can induce angiogenesis (2). Further, parathyroid hormone related peptide (PTHrP) acts to(More)
In the present study, we assessed the relationship of serum insulin levels and three surrogate markers of recurrence, T stage, PSA, and Gleason score, in men with localized prostate cancer. Participants in our study were found through urology and radiation oncology clinics, and all eligible patients were asked to take part. All patients were asymptomatic(More)
MTW9, a transplantable mammary tumor in Wistar Furth rats, shows little growth unless host serum prolactin is increased. This study compares the response to ovariectomy of MTW9-MtT, a tumor developed in rats bearing the mammosomatotropic tumor MtTW10 (serum prolactin 500 to 7000 ng/ml) with MTW9-P developed in rats given chronic perphenazine treatment (4(More)
A recent study (1) suggested that elevated plasma levels of insulin-like growth factor-I (IGF-I) were a predictor of advanced-stage prostate cancer. We have studied IGF-I in prostate cancer and have found no relationship to disease stage. We studied IGF-I in a group of 126 men with prostate cancer and benign prostatic hypertrophy (BPH). Participants in our(More)
BACKGROUND. In the present study, we assessed the relationship of serum insulin levels and risk of recurrence in men with localized prostate cancer because of the relationship of insulin to the development of prostate cancer, and because insulin is a growth factor. METHODS. Participants in our study were found through urology and radiation oncology clinics,(More)
coimplantation with a MtT or by daily administration of the tranquilizing drug, perphenazine (4-[3-(2-chborophenothiazin 10-yI)propyl]-1-piperazineethanol) (6). MTW9-MtT is grown by coimplantation of MTW9 with MtTW10, a MtT which secretes prolactin, growth hormone, and probably ACTH (5). MTW9-MtT stops growing after ovaniec tomy but does not regress;(More)
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