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Prostate specific antigen progression after radical prostatectomy in African-American men versus white men.

BACKGROUND: It is well established that African-American men (AAM) have a worse mortality from prostate carcinoma (PC) than White men (WM). Outcome data for men treated with radical prostatectomy for clinically localized PC demonstrate more advanced tumors and higher biochemical recurrence rates among AAM compared with WM. The objective of the current study was to characterize the pattern of prostate specific antigen (PSA) progression by race in patients experiencing disease recurrence after undergoing radical prostatectomy. Racial differences in the pattern of rising PSA would warrant different intervention strategies for reducing the disproportionality in survival outcomes between the two racial groups. METHODS: Between 1991-1996, 1080 consecutive men underwent radical prostatectomy for clinically localized PC at Wayne State University-affiliated Harper Hospital. Two hundred forty-one patients developed a biochemical recurrence on or before January, 1, 1999. The median follow-up was 39 months. Longitudinal PSA profiles of 77 men who met the study inclusion criteria were analyzed. Average relative velocities of PSA were compared between AAM and WM. Linear mixed effects regression was used to test the hypothesis that, after adjusting for age, preoperative PSA, stage and grade of disease, PSA levels increase at a faster rate in AAM compared with WM. RESULTS: The mean average relative velocity for AAM and WM experiencing a disease recurrence was 0.25 ng/mL and 0.11 ng/mL per month, respectively (P = 0.21). The relative rate of PSA increase in patients who developed a disease recurrence after radical prostatectomy was 18.9% per month for AAM and 16.3% per month for WM (P = 0.73). CONCLUSIONS: AAM and WM appear to have similar rates of PSA progression after undergoing radical prostatectomy.

Adult↗

Evaluation of an instrument to assess the needs of men diagnosed with prostate carcinoma: an assessment of the validity and reliability of a self-administered questionnaire developed to measure the needs experienced by men diagnosed with prostate carcinoma.

BACKGROUND: This study was conducted to evaluate a self-administered questionnaire developed to measure the needs experienced by men diagnosed with prostate carcinoma (the Prostate Cancer Needs Questionnaire [PCNQv1.1]). The PCNQv1.1 was constructed in two parts. Part 1 measures the needs at diagnosis and initial treatment and Part 2 measures current needs. METHODS: A random sample of 650 men diagnosed with prostate carcinoma who were being treated by a urologist of the Hunter Urology Group in Newcastle, New South Wales, Australia, were invited to participate in the study. They were sent by post the self-administered PCNQv1.1. Completed questionnaires were received from 385 men. Information provided on 100 additional men was considered ineligible. RESULTS: The principal components method of factor analysis with varimax orthogonal rotation identified eight factors with eigenvalues greater than 1, which accounted for 61.7% of the variance in Part 1 of the PCNQv1.1. Likewise, six factors were identified in Part 2, which accounted for 63.5% of the variance. Internal reliability coefficients (Cronbach alpha) were adequate for identified factors with values ranging from 0.70 to 0.88 for Part 1 and from 0.71 to 0.87 for Part 2. Test-retest reliability was acceptable with intraclass correlation coefficients ranging from 0.61 to 0.78 for Part 1 and from 0.60 to 0.82 for Part 2. CONCLUSIONS: These results suggest that the PCNQv1.1 is a valid and reliable instrument to assess the needs experienced by men diagnosed with prostate carcinoma.

Adult↗

Nicotine pharmacokinetics of Nicoderm (nicotine transdermal system) in women and obese men compared with normal-sized men.

This study examined the effect of gender and body weight on the pharmacokinetic properties of the Nicotine Transdermal System (NTS) (Nicoderm). This NTS was applied for 24 hours to 13 normal-sized men, 13 women, and 13 obese men, all of whom were smokers who had abstained from cigarettes for the previous 24 hours. Pharmacokinetic parameters were determined during a single application of the system. The mean nicotine maximal plasma concentration (Cmax) and area under the curve (AUC) values for women did not differ significantly from those for normal-sized men. Nicotine Cmax and AUC values, however, were significantly lower in obese compared with normal-sized men; nicotine AUC was strongly correlated to body weight and body mass index. Mean apparent nicotine elimination rate constant values were not significantly different between normal-sized and obese men, but the apparent elimination rate constant value was significantly higher in women. The possible clinical significance of the differences in nicotine AUC values with body weight is discussed.

Administration, Cutaneous↗

Comparative study of plasma steroid and steroid glucuronide levels in normal men and in men with benign prostatic hyperplasia.

Plasma steroids were analyzed in 16 normal men and in 10 men with prostatic benign hyperplasia (BPH). The steroids measured by radioimmunoassay include pregnenolone, 17-OH-pregnenolone, dehydroepiandrosterone, androst-5-ene-3 beta, 17 beta-diol, testosterone, dihydrotestosterone, androstane-3 alpha, 17 beta-diol, androstane-3 beta, 17 beta-diol, estrone, and estradiol as well as their glucuronide derivatives. In addition, cortisol and the sulphoconjugated form of dehydroepiandrosterone were determined. Whereas the levels of pregnenolone, pregnenolone glucuronide and 17-OH-pregnenolone glucuronide are not different in the two groups, the levels of 17-OH-pregnenolone in the BPH group (0.87 +/- 0.07 ng/ml) exceed by two-fold (p less than 0.01) those observed in normal men. Plasma dehydroepiandrosterone and androst-5-ene-3 beta, 17 beta-diol concentrations are markedly elevated in the BPH group (1.49 +/- 0.23 and 0.55 +/- 0.08 ng/ml vs the control groups 0.43 +/- 0.11 and 0.31 +/- 0.05 ng/ml, respectively). Since the plasma cortisol and pregnenolone levels are comparable in these two groups, our data suggest that the elevation of plasma 17-OH-pregnenolone, dehydroepiandrosterone, and androst-5-ene-3 beta, 17 beta-diol reflects an increase of adrenal 17-hydroxylase activity in patients with BPH. A slight increase of the plasma dihydrotestosterone and androsterone glucuronide concentration is also observed in men with BPH, indicating an increase of 5 alpha-reduced androgen formation. We have also observed, in the BPH group, a 50% decrease (p less than 0.01) of plasma glucuronidated androst-5-ene-3 beta, 17 beta-diol, estrone, and estradiol levels, suggesting that the transformation of unconjugated estrogenic steroids into glucuronide derivative is inhibited in BPH patients. In summary, our data indicate that adrenal C-19 steroids might be involved in the process of BPH. Furthermore, whereas the estrogen glucuronide formation is diminished in men with BPH, the prostatic androgen metabolism as reflected by plasma dihydrotestosterone and androsterone glucuronide concentrations seems to be increased.

Aged↗

Histologic types and hormone receptors in breast cancer in men: a population-based study in 282 United States men.

Histologic slides from 282 incident cases of breast cancer in men, that were identified in 10 population-based cancer registries in the United States, were reviewed by a single pathologist. Breast cancer more often presented in the noninvasive stage in men (10.8 percent of all cases) than would be expected among women. All noninvasive carcinomas were of the ductal type. Of invasive carcinomas, compared with women, men had smaller proportions of lobular and mucinous types and larger proportions of ductal and papillary types and Paget's disease. No case of tubular or medullary carcinoma was seen. The breast in men is composed only of ducts and normally contains no lobules, and the histologic types of breast carcinomas that predominate in men are likely of ductal origin. Estrogen and progesterone receptors were present in 86.7 percent and 76.3 percent of invasive carcinomas, respectively, which are higher proportions than would be expected among women. Also, unlike findings in women, receptor content was not associated with patient age at diagnosis.

Age Factors↗

Estimation of urethral resistance by curve fitting in the pressure-flow plot. Theory and experience in normal men and men with benign prostatic hypertrophy.

The curvature of the urethral resistance relation was estimated in 21 normal men, in 32 prostatism patients, in 60 men with a diagnosis of benign prostatic hypertrophy (BPH) and obstruction, and in 55 men after treatment of BPH. The curvature was determined by curve fitting in the pressure-flow plot using the method of least squares. In all, 58% of the normal men and prostatism patients had a urethral resistance relation with the convexity directed upward, demonstrating a low-compliant type of distensibility. After transurethral resection (TUR), significantly more men had the convexity of the urethral resistance relation directed downward, showing that the distensibility was more of a constrictive type. This change in the elastic properties of the flow-controlling zone can be assessed only by using several curvatures to estimate the urethral resistance relation. Another advantage for the method of using different curvatures is that the effects of bladder contractility are minimized. However, should one use only one form of the urethral resistance relation, it is recommended that a linear relation be chosen.

Aged↗

Hyperinsulinaemia is not a major coronary risk factor in elderly men. The study of men born in 1913.

Insulin and insulin resistance have attracted considerable interest as possible risk factors for coronary heart disease during the last decade. We therefore examined the 8-year incidence of coronary heart disease in 595 67-year-old men in relation to baseline insulin and other risk factors. The incidence of coronary heart disease increased from 9% among non-diabetic men to 13.5% among those with impaired glucose tolerance, 12.9% among newly-detected diabetic men and up to 31.3% among men with known diabetes. The incidence of coronary heart disease was related to fasting blood glucose and 1 h and 2 h blood glucose during the oral glucose tolerance test and to serum cholesterol and serum triglycerides. Fasting serum insulin was of borderline significance for the risk of coronary heart disease. When known diabetic subjects were excluded only serum cholesterol and serum triglycerides remained as statistically significant risk factors. Among diabetic subjects (known and newly-detected) only blood glucose was related to the risk of coronary heart disease. In multivariate analyses the different degrees of glucose intolerance or fasting blood glucose were independently related to the risk of coronary heart disease (p = 0.008-0.010). Serum triglycerides were also an independent risk factor in three out of four multivariate models (p = 0.02-0.09). Fasting serum insulin was not an independent risk factor. These findings do not support the hypothesis that hyperinsulinaemia is a major risk factor for coronary heart disease in elderly men. Hyperglycaemia (or diabetes mellitus) seems to be the most important risk factor.

Aged↗

Hypogonadotropic hypogonadal men respond less well to androgen substitution treatment than hypergonadotropic hypogonadal men.

This research asked whether androgen substitution therapy is as efficacious in hypogonadotropic hypogonadal men as in hypergonadotropic hypogonadal men. Erotosexual functions of two groups of six men of each diagnostic category were compared after 5-6 years of continuous androgen treatment. Treatment regimen was the same in both groups: Parenteral testosterone esters 250 mg/2 weeks. No difference was found in erectile and ejaculatory potency, but the number of sexual acts and scores of subjective quality of sexual acts, sexual excitement, and frequency of sexual thoughts and of nonsexual parameters as vigor, fatigue, anxiety were more negative in the hypogonadotropic men. The most obvious difference between the two groups is the value of LH/FSH and presumably of LHRH. Hypogonadotropic hypogonadal men may be better treated with gonadotropins (or with pulsatile LHRH, when the hypophysis is intact) than with androgens.

Adolescent↗

80-year-old men have elevated plasma concentrations of catecholamines but decreased plasma renin activity and aldosterone as compared to young men.

Plasma concentrations of adrenaline, noradrenaline, aldosterone and plasma renin activity were determined in a selected group of 80-year-old men (N = 41) in good health without clinical signs of cardiovascular disease, and were compared to levels in young healthy males (N = 20, 24-28 years). Plasma adrenaline and noradrenaline concentrations were higher (0.24 median; 25th-75th percentiles 0.16-0.34 nmol/L vs 0.15; 0.11-0.18 nmol/L, p < 0.01 and 2.22; 1.58-3.27 nmol/L vs 1.15; 1.00-1.74 nmol/L, p < 0.001), and plasma renin activity and plasma aldosterone concentration were lower in the old than in the young men (0.65; 0.35-1.04 micrograms/L/1h vs 2.09; 1.23-2.41 micrograms/L/1h, p < 0.001 and 0.12; 0.09-0.19 nmol/L vs 0.38; 0.28-0.54 nmol/L, p < 0.001). In conclusion, increased plasma concentrations of catecholamines and decreased plasma concentration of aldosterone and plasma renin activity in old men, as compared to young men, must be considered when interpreting data of these hormones in elderly men.

Adult↗

Increased high risk sexual behavior after September 11 in men who have sex with men: an Internet survey.

Numerous studies on the mental health effects of terrorist attacks have been published, with some reporting increases in smoking and drug and alcohol use. None have reported on changes in sexual behavior. To investigate the impact of the September 11 attacks on sexual and drug- and alcohol-using behaviors of men who have sex with men (MSM), an anonymous Internet survey was conducted to obtain information retrospectively on behavior during three month periods before and after the attacks. A total of 2,915 MSM from all 50 U.S. states completed the survey. Men who were exposed to the attacks were not differentially targeted for the survey since the online banner ad used to recruit did not mention September 11. Exposure to the attacks varied: 11.4% lost a friend or relative; 5% witnessed the attacks in person; and nearly all saw the attacks on television within one hour of their occurrence. Nearly equal proportions of men reported increases and decreases in the number of sex partners following September 11. Small, statistically significant increases in unprotected anal intercourse and alcohol use, but not illicit drug use, were found when behavior after September 11 was compared to that before the attacks. Men who lost a friend or relative in the attacks were significantly more likely to report unprotected anal intercourse, an increased number of sex partners, and increased alcohol use after September 11 than those who did not. Counseling about substance abuse and risky sexual behavior should be incorporated into trauma-related programs for adolescents and adults.

Adult↗

Sexual negotiation, HIV-status disclosure, and sexual risk behavior among Latino men who use the internet to seek sex with other men.

As part of a wider study of Internet-using Latino men who have sex with men (MSM), we studied the likelihood that HIV-negative (n=200) and HIV-positive (n=50) Latino MSM would engage in sexual negotiations and disclosure of their HIV status prior to their first sexual encounters with men met over the Internet. We also analyzed the sexual behaviors that followed online encounters. Our results showed that both HIV-negative and positive men were significantly more likely to engage in sexual negotiation and serostatus disclosure on the Internet than in person. Those who engaged in sexual negotiations were also more likely to use condoms for anal intercourse. Compared to HIV-negative MSM, HIV-positive MSM were significantly less likely to disclose their serostatus, and 41% of them acknowledged having misrepresented their serostatus to a prospective sexual partner met over the Internet. Although similar proportions of HIV-positive and negative men had condomless anal intercourse, HIV-positive MSM were more likely to report lack of intention to use condoms. Pleasure was the reason most frequently cited for lack of condom use. Cybersex was reported by only one-fifth of the sample. We conclude that the Internet, an understudied milieu of sexual networking, may present new possibilities for the implementation of risk reduction strategies, such as the promotion of sexual negotiation prior to first in-person encounter and serostatus disclosure.

Adult↗

Relation of long chain n-3 polyunsaturated fatty acid intake to serum high density lipoprotein cholesterol among Japanese men in Japan and Japanese-American men in Hawaii: the INTERLIPID study.

Epidemiologic evidence shows an inverse relationship between fish consumption and coronary heart disease (CHD) mortality. Associations between dietary intake of long chain n-3 polyunsaturated fatty acids (PUFA) and serum high density lipoprotein (HDL) cholesterol concentration are unknown. In this study, the association between n-3 PUFA (eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and docosapentaenoic acid (DPA)) intake and serum HDL cholesterol among Japanese men and women in Japan and Hawaii was examined. The study population consisted of Japanese ancestries from five research centers of the International Study of Macronutrients and Blood Pressure (INTERMAP) study, in Japan and Hawaii (672 men and 676 women), surveyed between 1996 and 1998. Four 24-h dietary recalls and one set of serum lipid measurements were performed. For men, n-3 PUFA intake and HDL cholesterol were higher in Japan than in Hawaii (n-3 PUFA: 1.32 g/day versus 0.47 g/day, p<0.001). For women, n-3 PUFA intake was higher in Japan than in Hawaii (p<0.001) but HDL cholesterol was not significantly different (p=0.752). After adjustment for age, body mass index, physical activity, number of cigarettes per day, alcohol intake, and hormone replacement therapy (for women), n-3 PUFA intake was positively associated with serum HDL cholesterol in men (4.6 mg/dl higher HDL cholesterol with 1%kcal higher n-3 PUFA intake, p=0.011). This association was not observed in women. This positive association of dietary n-3 PUFA with serum HDL cholesterol may partially explain the low mortality from CHD among Japanese men.

Adult↗

'Real men don't diet': an analysis of contemporary newspaper representations of men, food and health.

Little research to date has focused on the meanings men attach to food and the relationship between diet and health. This is an important topic in light of the current 'crisis' in men's health and the role of lifestyle factors such as diet in illness prevention. Since the mass media is a powerful source of information about health matters generally, media representations bear critical examination. The present paper reports on an in-depth qualitative analysis of contemporary UK newspaper articles on the topic of men and diet (N=44). The findings indicate a persistent adherence to hegemonic masculinities predicated on health-defeating diets, special occasion cooking of hearty meals, and a general distancing from the feminised realm of dieting. At the same time, men are constructed as naïve and vulnerable when it comes to diet and health, while women are viewed as experts. The implications for health promotion with men are discussed.

Diet↗

Detection of prostate cancer in men with prostate-specific antigen levels of 2.0 to 4.0 ng/mL equivalent to that in men with 4.1 to 10.0 ng/mL in a Japanese population.

OBJECTIVES: To analyze prospectively whether prostate cancer (CaP) incidence differs between Japanese men with a prostate-specific antigen (PSA) level of 2.0 to 4.0 ng/mL and those with a PSA level of 4.1 to 10.0 ng/mL. METHODS: Men 79 years old or younger who were referred to our clinic were screened for CaP. Individuals with PSA levels of 2.0 ng/mL or greater were recommended for transrectal prostate biopsy. The prebiopsy clinical characteristics, cancer detection rate, and pathologic findings from the needle biopsy and prostatectomy specimen were compared between the low (2.0 to 4.0 ng/mL) and intermediate (4.1 to 10.0 ng/mL) PSA groups. RESULTS: Of 858 patients screened for CaP, 440 with benign findings on digital rectal examination met the criteria, and 274 (62.3%) underwent biopsy. Of those undergoing biopsy, 110 and 123 patients had a low or an intermediate PSA level, respectively. Men in the low PSA group had a higher free/total PSA ratio, smaller prostate volume, and lower PSA density compared with those in the intermediate PSA group. CaP was diagnosed in 26 (23.6%) of 110 in the low and 29 (23.6%) of 123 in the intermediate PSA group. No statistically significant difference was found between the two groups in the pathologic findings of needle biopsy, including Gleason score, number of cores per biopsy, percentage of positive cores, and cancer length in the positive cores. CONCLUSIONS: No statistically significant difference was found in the incidence of CaP (23.6%) between men with low and intermediate PSA levels in a Japanese population. The diagnostic yield was comparable to that reported for both white and black men.

Aged↗

Social-cognitive determinants of vaccination behavior against hepatitis B: an assessment among men who have sex with men.

BACKGROUND: Many individuals who are at risk for infection with the hepatitis B virus (HBV), including men who have sex with men (MSM), are not vaccinated. This study assessed social-cognitive determinants of obtaining vaccination against HBV. METHODS: A targeted survey was conducted among 432 MSM by means of a written questionnaire that contained assessments of social-cognitive determinants of vaccination behavior derived from the Health Belief Model (HBM) and the Theory of Planned Behavior. Vaccination behavior was anonymously linked to questionnaire data for which informed consent was obtained. RESULTS: Of the 290 men eligible for vaccination, 248 (86%) had obtained vaccination. Multivariate logistic regression analysis showed that these men were younger, more often were in a steady relationship, and had fewer sex partners. In addition, significant effects were also found for central factors proposed by the Health Belief Model. Notably, men who obtained vaccination against HBV perceived more personal threat from HBV. None of the Theory of Planned Behavior variables were related to obtaining vaccination. CONCLUSIONS: Findings suggest that health education interventions that address perceived susceptibility and severity are likely to contribute to increased uptake of HBV vaccination among MSM. Influencing perceived susceptibility in particular is important, more so than increasing perceived severity by scare tactics.

Age Factors↗

Tadalafil is efficacious in Black American and Hispanic men with erectile dysfunction: results from multiple observations in men with erectile dysfunction in national tadalafil study in the US (MOMENTUS).

To show that tadalafil is efficacious in Black American and Hispanic men with erectile dysfunction (ED) and efficacy is noninferior to that in Caucasian men. Multiple observations in men with ED in national tadalafil study in the US, a multicenter, open-label study, assessed the efficacy of tadalafil 20 mg taken as needed (maximum one dose/day before sexual activity) for 12 weeks by patients with ED in various populations. This analysis focuses on three groups: Caucasian (Reference group), Black American, and Hispanic men. Primary measurement of efficacy was change from baseline in erectile function (EF) domain of the International Index of Erectile Function (IIEF) and the primary analysis was whether efficacy in Black American and Hispanic groups was noninferior to efficacy in the Caucasian group. Secondary efficacy measures included sexual encounter profile (SEP), IIEF intercourse satisfaction (IS) and overall satisfaction (OS) domains, Global Assessment Question (GAQ), and Psychological and Interpersonal Relationship Scale (PAIRS). Safety was assessed from adverse events (AEs) reported by all enrolled patients. The increase in IIEF EF domain score (>or=9.5) from baseline for each group was statistically significant (P<0.001) and clinically relevant. Efficacy of tadalafil in Black American and Hispanic patients was noninferior to the Caucasian group. IS and OS domains of IIEF had a statistically significant increase from baseline (P<0.001). Change from baseline in positive responses to SEP questions for each group was significant (P<0.001). At least 77% of intercourse attempts were successful over various time intervals up to 36 h postdose. At least 88% of patients in the various groups had a positive response to GAQ1. Improvement from baseline in Sexual Self-Confidence and Spontaneity domains of PAIRS was statistically significant (P<0.001). A low number of AEs and a low AE-related discontinuation rate (2.3%) were reported in all groups. Tadalafil 20 mg was as efficacious in Black American and Hispanic men with ED as in Caucasian patients and was well tolerated.

Adult↗

Mortality associated with body fat, fat-free mass and body mass index among 60-year-old swedish men-a 22-year follow-up. The study of men born in 1913.

OBJECTIVE: To describe differences in the 22 y mortality risk associated with body mass index (BMI), body fat or fat-free mass, in order to examine if the differential health consequences of fat and fat-free mass may be responsible for elevated mortality rates at both high and low BMI. DESIGN: Prospective cohort study, a 22 y follow-up. SETTING: General community. The study of men born in 1913, Gothenburg. SUBJECTS: 787 men aged 60 y. MAIN OUTCOME MEASURES: Number and time of total deaths from 1973 to 1995. RESULTS: The risk of dying was a linear function of percentage fat and fat-free mass, and increased from a relative risk of 1.00 in men belonging to the lowest fifth to 1.4 (95% confidence interval 1.11-1.99) in men in the highest fifth of percentage fat mass. For BMI the lowest risk was observed for men belonging to the middle fifth of BMI. When the relative risk was set at 1.00 for subjects belonging to the middle fifth of BMI the risk associated with the low BMI fifth was 1.3 (95% confidence interval 0.94-1.68) and that with the highest fifth was 1. 5 (95% confidence interval 1.09-1.96). Analyses including both body fat and fat-free mass showed that total mortality was a linear increasing function of high fat and low fat-free mass. CONCLUSION: The apparent U-shaped association between BMI and total mortality may be the result of compound risk functions from body fat and fat-free mass. International Journal of Obesity (2000)24, 33-37

Adipose Tissue↗

Indigenous men taking their rightful place in society? A preliminary analysis of a participatory action research process with Yarrabah Men's Health Group.

Men's groups are increasingly being accepted as an important strategy in improving health and well-being, especially in Indigenous communities. However, it is hard to find systematic documentation and evaluation of such initiatives in the literature. This paper analyses the formative stages of a participatory action research (PAR) process which aims to engage and support the members of the Yarrabah Men's Health Group plan, implement and evaluate their activities. Data for the paper are based on a combination of a review of relevant literature, analysis of project documentation, participant observation and discussion and reflection with the participants of the men's group. The paper highlights the importance of (a) using a reflective approach, such as PAR, to engage men's support groups to clearly define the principles and values which both define them and to which they aspire and (b) personal development, education and employment, as a prerequisite for Indigenous men taking greater control and responsibility for their lives. These types of micro-level studies have important implications for the way community development is perceived and approached in Indigenous settings. There are also implications for the roles that academic researchers can play in supporting and adding value to community-driven initiatives to the mutual benefit of both parties.

Community Health Planning↗