Publications by authors named "Darcy Bishop"

Purpose: To assess outcome and predictive factors in men with prostate cancer who receive post radical prostatectomy (RP) radiotherapy (RT) either in the adjuvant or salvage setting, with or without neoadjuvant androgen deprivation therapy (NADT).

Methods: A retrospective analysis was performed on 175 patients with clinically localized prostate cancer treated with RP who subsequently received RT (dose range 50 Gy-68 Gy). Twenty-two patients received adjuvant RT (ART), 57 received NADT + ART, 15 received salvage RT (SRT), and 81 received NADT + SRT.

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Purpose: Prostate tumors express antigens that are recognized by the immune system in a significant proportion of patients; however, little is known about the effect of standard treatments on tumor-specific immunity. Radiation therapy induces expression of inflammatory and immune-stimulatory molecules, and neoadjuvant hormone therapy causes prominent T-cell infiltration of prostate tumors. We therefore hypothesized that radiation therapy and hormone therapy may initiate tumor-specific immune responses.

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Purpose: To examine the impact of various patient, disease, and treatment characteristics on outcome in patients treated with neoadjuvant hormone therapy (NAHT) and external-beam radiation therapy (EBRT) for clinically localized, high-risk prostate adenocarcinoma (initial prostate-specific antigen [PSA] level >20, Gleason score 8-10 or Stage > or = T3).

Methods And Materials: A retrospective chart review was conducted on 407 patients treated between 1991 and 2001 with NAHT and EBRT for high-risk prostate cancer. The effect of tumor (PSA level, Gleason score, and T stage) and treatment (NAHT duration, total-hormone duration, preradiation PSA) characteristics on rates of biochemical disease-free survival (bDFS), prostate cancer-specific survival, and overall survival were examined.

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This study investigated the control of sensory inputs during the performance of an inverted-pendulum balancing task. Experiments were conducted to examine modulation of proprioceptive inputs during balance tasks of varying difficulty. It was hypothesized that proprioceptive inputs to both spinal and cortical levels would be facilitated during a challenged balance task.

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