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1.
Prostate ; 77(16): 1573-1582, 2017 Dec.
Article in English | MEDLINE | ID: mdl-28971497

ABSTRACT

BACKGROUND: Prospective cohort studies of circulating sex steroid hormones and prostate cancer risk have not provided a consistent association, despite evidence from animal and clinical studies. However, studies using male pattern baldness as a proxy of early-life or cumulative androgen exposure have reported significant associations with aggressive and fatal prostate cancer risk. Given that androgens underlie the development of patterned hair loss and chest hair, we assessed whether these two dermatological characteristics were associated with circulating and intraprostatic concentrations of sex steroid hormones among men diagnosed with localized prostate cancer. METHODS: We included 248 prostate cancer patients from the NCI Prostate Tissue Study, who answered surveys and provided a pre-treatment blood sample as well as fresh frozen adjacent normal prostate tissue. Male pattern baldness and chest hair density were assessed by trained nurses before surgery. General linear models estimated geometric means and 95% confidence intervals (95%CIs) of each hormone variable by dermatological phenotype with adjustment for potential confounding variables. Subgroup analyses were performed by Gleason score (<7 vs ≥7) and race (European American vs. African American). RESULTS: We found strong positive associations of balding status with serum testosterone, dihydrotestosterone (DHT), estradiol, and sex hormone-binding globulin (SHBG), and a weak association with elevated intraprostatic testosterone. Conversely, neither circulating nor intraprostatic sex hormones were statistically significantly associated with chest hair density. Age-adjusted correlation between binary balding status and three-level chest hair density was weak (r = 0.05). There was little evidence to suggest that Gleason score or race modified these associations. CONCLUSIONS: This study provides evidence that balding status assessed at a mean age of 60 years may serve as a clinical marker for circulating sex hormone concentrations. The weak-to-null associations between balding status and intraprostatic sex hormones reaffirm differences in organ-specific sex hormone metabolism, implying that other sex steroid hormone-related factors (eg, androgen receptor) play important roles in organ-specific androgenic actions, and that other overlapping pathways may be involved in associations between the two complex conditions.


Subject(s)
Alopecia/blood , Alopecia/diagnosis , Gonadal Steroid Hormones/blood , Hair Follicle/metabolism , Prostatic Neoplasms/blood , Prostatic Neoplasms/diagnosis , Aged , Aged, 80 and over , Alopecia/epidemiology , Biomarkers/blood , Biomarkers/metabolism , Follow-Up Studies , Gonadal Steroid Hormones/metabolism , Hair/metabolism , Humans , Male , Middle Aged , Pilot Projects , Prostatic Neoplasms/epidemiology , Thorax/metabolism
2.
Cancer Epidemiol Biomarkers Prev ; 26(11): 1660-1666, 2017 11.
Article in English | MEDLINE | ID: mdl-28830872

ABSTRACT

Background: Sex hormones have been implicated in prostate carcinogenesis, yet epidemiologic studies have not provided substantiating evidence. We tested the hypothesis that circulating concentrations of sex steroid hormones reflect intraprostatic concentrations using serum and adjacent microscopically verified benign prostate tissue from prostate cancer cases.Methods: Incident localized prostate cancer cases scheduled for surgery were invited to participate. Consented participants completed surveys, and provided resected tissues and blood. Histologic assessment of the ends of fresh frozen tissue confirmed adjacent microscopically verified benign pathology. Sex steroid hormones in sera and tissues were extracted, chromatographically separated, and then quantitated by radioimmunoassays. Linear regression was used to account for variations in intraprostatic hormone concentrations by age, body mass index, race, and study site, and subsequently to assess relationships with serum hormone concentrations. Gleason score (from adjacent tumor tissue), race, and age were assessed as potential effect modifiers.Results: Circulating sex steroid hormone concentrations had low-to-moderate correlations with, and explained small proportions of variations in, intraprostatic sex steroid hormone concentrations. Androstane-3α,17ß-diol glucuronide (3α-diol G) explained the highest variance of tissue concentrations of 3α-diol G (linear regression r2 = 0.21), followed by serum testosterone and tissue dihydrotestosterone (r2 = 0.10), and then serum estrone and tissue estrone (r2 = 0.09). There was no effect modification by Gleason score, race, or age.Conclusions: Circulating concentrations of sex steroid hormones are poor surrogate measures of the intraprostatic hormonal milieu.Impact: The high exposure misclassification provided by circulating sex steroid hormone concentrations for intraprostatic levels may partly explain the lack of any consistent association of circulating hormones with prostate cancer risk. Cancer Epidemiol Biomarkers Prev; 26(11); 1660-6. ©2017 AACR.


Subject(s)
Gonadal Steroid Hormones/analysis , Prostate/pathology , Prostatic Neoplasms/blood , Prostatic Neoplasms/pathology , Aged , Humans , Male , Middle Aged , Radioimmunoassay , Sex Hormone-Binding Globulin
3.
J Support Oncol ; 11(4): 174-82, 2013 Dec.
Article in English | MEDLINE | ID: mdl-24645337

ABSTRACT

BACKGROUND: Routine symptom and health-related quality of life (HRQOL) assessments can engage patients, give provider feedback, and improve doctor/patient communication. OBJECTIVE: We compared the impact of a technology-assisted symptom monitoring system versus usual care on HRQOL and doctor/patient communication in early-stage prostate cancer (PCa) survivors. METHODS: Men (N = 94) were on average 62-years old, mostly African American (AA; 61.7%), and 10-19 months post-treatment. They were randomized to symptom monitoring plus feedback (SM + F; n = 49) or usual care (UC; n = 45). SM+F participants completed a 12-item telephoneassisted monitoring intervention. All participants completed a baseline and 2 follow-up interviews. RESULTS: Among the SM+F participants, perceptions of the monitoring system were positive: 97.1% endorsed it as easy/very easy to use and 85% felt all patients could benefit from it. At baseline, men reported favorable general and cancer-specific HRQOL and doctor/patient communication, but poorer urinary and sexual function. Although there was no overall impact of the intervention, post hoc exploratory analyses indicated that among AA men, those who received SM+F improved relative to UC on doctor/patient communication (P < .05), general HRQOL (P < .06), and sexual function (P < .05). LIMITATIONS: Variability in survivor follow-up care, limited access to eligible participants, and minimal physician training in the use of reports likely decreased physician investment. CONCLUSION: Overall, PCa survivors were receptive to this monitoring system. Exploratory analyses suggest that this technology-assisted monitoring system may be of particular benefit to African American men. Additional studies with larger samples, more intervention time-points, and increased physician training are needed to strengthen the intervention's impact.


Subject(s)
Monitoring, Physiologic/methods , Prostatic Neoplasms/diagnosis , Aged , Humans , Male , Middle Aged , Monitoring, Physiologic/instrumentation , Quality of Life , Self Report , Survivors/psychology , Telephone
4.
Patient Educ Couns ; 79(2): 239-44, 2010 May.
Article in English | MEDLINE | ID: mdl-19775849

ABSTRACT

OBJECTIVE: Increased long-term survival rates have led to a greater focus on the health-related quality of life (HRQL) of prostate cancer survivors. This study assessed the motivations of prostate cancer survivors for disclosing their diagnosis and treatment to close others, and their perceptions of their own and others' responses to the disclosure. METHODS: Prostate cancer survivors (N=35) who were 24-36 months post-treatment for localized disease completed a semi-structured telephone interview. Open-ended questions concerning disclosure of men's diagnosis and treatment and their perceptions of their own and others' reactions to the disclosure were included. RESULTS: Regarding men's motivations for disclosing their diagnosis and treatment, men reported that they were seeking social support (SS) and that others had a 'right to know.' Further, the receipt of emotional support and feeling a sense of positive emotions were common following disclosure about their diagnosis and treatment. Participants reported continuing to discuss their treatment side effects 2-3 years post-treatment. CONCLUSION: Prostate cancer survivors reported an overall positive and supportive response following the disclosure of their diagnosis and treatment. Further examination of the relationship between SS and HRQL will be necessary to identify interventions to enhance the well-being of this growing population of survivors. PRACTICE IMPLICATIONS: Providers need to be aware of the extent and long-term nature of the side effects following treatment for prostate cancer. If providers encourage men to talk about their diagnosis, treatment, and side effects, providers may better understand men's experience with the disease, and men may be more likely to accept these commonly experienced changes, as well as seek treatment for them. These efforts may result in improved quality of life for survivors of prostate cancer.


Subject(s)
Disclosure , Prostatic Neoplasms/psychology , Social Support , Survivors/psychology , Aged , Erectile Dysfunction/etiology , Erectile Dysfunction/psychology , Fecal Incontinence/etiology , Fecal Incontinence/psychology , Health Status , Humans , Male , Motivation , Prostatic Neoplasms/complications , Prostatic Neoplasms/therapy , Quality of Life , United States , Urinary Incontinence/etiology , Urinary Incontinence/psychology
5.
Ethn Dis ; 16(4): 988-93, 2006.
Article in English | MEDLINE | ID: mdl-17061757

ABSTRACT

Prostate-specific antigen screening has led to an increase in the number of men who present with localized prostate cancer. Patients must engage in decision-making regarding treatment, which is influenced by several factors including patient age at diagnosis, tumor stage, and co-morbidities. Among those patients who decide to undergo potentially curative treatment, quality of life is extremely important. However, quality of life among men with prostate cancer has not been studied extensively compared to other sites. The proposed study addressed the quality of life in 100 African American men who underwent radical prostatectomy. The men had a mean age of 63.7 +/- 7.5 and mean age at diagnosis of 59.7 +/- 6.9 years. The most common problems or symptoms were erection failure (84.7%), urinary incontinence and frequency (63.3%), pain 54.1%, and fatigue 53.1%. Problems with either sleep or appetite were recorded by 39.8%, and psychological problems related to sadness, worry, nervousness, or feeling of loneliness were reported by 32.6%. Problems most often reported by patients as being moderate to severe in intensity were sex life (67.3%), sexual dysfunction (55.7%), erection (50.0%), and urination frequency (40.8%). These data present patient perception of adverse quality of life outcomes after prostatectomy and underscore the importance of considering both their short- and long-term expectations of treatment options.


Subject(s)
Black or African American/statistics & numerical data , Prostatectomy/adverse effects , Quality of Life , Adenocarcinoma/ethnology , Adenocarcinoma/surgery , Aged , Aged, 80 and over , Appetite , Cross-Sectional Studies , Erectile Dysfunction/etiology , Fatigue/etiology , Follow-Up Studies , Humans , Male , Middle Aged , Pain/etiology , Predictive Value of Tests , Prostatic Neoplasms/ethnology , Prostatic Neoplasms/surgery , Research Design , Severity of Illness Index , Sickness Impact Profile , Sleep Wake Disorders/etiology , Surveys and Questionnaires , Time Factors , Treatment Outcome , Urinary Incontinence/etiology
6.
BJU Int ; 96(3): 324-7, 2005 Aug.
Article in English | MEDLINE | ID: mdl-16042723

ABSTRACT

OBJECTIVE: To evaluate taking more biopsy cores for predicting the radical prostatectomy (RP) Gleason score compared with the biopsy Gleason score, as although random sextant biopsies are the standard for a tissue diagnosis of prostate cancer, and taking more biopsies increases the detection rate, it is uncertain whether taking more cores improves the prediction of the RP Gleason score. PATIENTS AND METHODS: We analysed retrospectively 404 patients from three centres (Seattle 162, Washington 107 and Chicago 135) who had RP for prostate cancer. Six, eight or 10 biopsies were taken based on the physician's preference and the patient's characteristics. RESULTS: Before RP, 158 (39%) patients had six, 65 (16%) had eight and 181 (45%) had 10 biopsy cores taken. The accuracy of the Gleason sum of the three groups was 65/158 (41%), 26/65 (40%) and 104/181 (57.5%), respectively (P < 0.004, 10-core vs six-core). However, when comparing the Gleason score separately (i.e. 4 + 3 is not equal to 3 + 4), the accuracy of the three groups was 48/158 (30%), 20/65 (31%), and 95/181 (52.5%), respectively (P < 0.001, 10-core vs six core). CONCLUSIONS: Taking more biopsy cores improves the accuracy of the biopsy Gleason score in predicting the final Gleason score at RP; the predictive accuracy of the final Gleason score may be increased from 41% to 58% by increasing the number of biopsies from six to 10.


Subject(s)
Biopsy, Needle/methods , Prostatectomy/methods , Prostatic Neoplasms/pathology , Adult , Aged , Biopsy, Needle/standards , Humans , Male , Middle Aged , Prostate/surgery , Prostatic Neoplasms/surgery , Retrospective Studies , Sensitivity and Specificity
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