[Oxidative stress and male infertility a clinical perspective].

The review of recent literature suggests that oxidative stress plays a significant role in the etiology of male infertility, life style and environmental factors contributing to oxidative stress are common in males. Antioxidant defence system is described as a complex network of internally synthesised and externally supplied components. In men with oxidative stress infertility antioxidants (-carotine, vitamin E, vitamin C, selenium, and zinc) intake decreases reactive oxygen species production, improves sperm parameters and pregnancy rate.

[Lower urinary tract symptoms in young adult men: analysis of prevalence, profile and relationship with metabolic syndrome risk factors].

AIM: To evaluate LUTS prevalence and characteristics of lower urinary tract symptoms in young men and to investigate the relationship between LUTS and metabolic syndrome risk factors. MATERIALS AND METHODS: One hundred and one male student (age between 19 and 29, mean 21,2+/-1,5 years) of St Petersburg universities (63 (62,4%) students of First State Pavlov Medical University and 38 (37,6%) students of National Research University Higher School of Economics) were anonymously questioned. Students were asked about their height, weight, metabolic syndrome risk factors and interviewed by I-PSS and QoL questionnaire. The obtained data was analyzed in order to find significant relationship. RESULTS: Lower urinary tract symptoms (I-PSS>0) were found in 84 (84%) men, mild and moderate LUTS - in 77 (77%) and 7 (7%) men, respectively. 39 (39%) men had both storage and voiding symptoms, storage only and voiding only symptoms were found in 31 (31%) and 14 (14%) students respectively. I-PSS score was higher in men with hypertension, diabetes, chronic stress and unmotivated fatigue (p=0,032, p=0,027, p=0,015 and p=0,003, respectively). In regression model (R2=0,268) I-PSS score was associated with diabetes (p<0,001), chronic stress (p=0,002) and hypertension (p=0,020). CONCLUSION: LUTS prevalence in young men is high. The relationship between LUTS and metabolic syndrome risk factors in young adult men can be considered as a reason for clinical investigation.

Prevalence and risk factors for erectile dysfunction and lower urinary tract symptoms in Russian Federation men: analysis from a national population-based multicenter study.

An analysis of prevalence and associated common risk factors of ED and lower urinary tract symptoms (LUTS) was performed in Russian Federation by cross-sectional multicenter survey. International Index of Erectile Function (IIEF) score and International Prostate Symptom Score (IPSS) were used for data collection in 1225 men between 20 and 77 years interviewed in six regions of Russian Federation. In addition, each participant's social, demographic, lifestyle, sexual and medical history was taken with special emphasis on risk factors for ED. Upon the basis of IIEF erectile domain score interpretation, ED was found in 530 (48.9%) men, consisting of mild and mild to moderate, moderate and severe ED in 375 (34.6%), 78 (7.2%) and 77 (7.1%) respondents, respectively. According to IPSS assessment, LUTSs were present in 649 (59.9%) responders; inclusive 370 (34.2%), 216 (19.9%) and 63 (5.8%) men with mild, moderate and severe LUTS, respectively. Men with both ED and LUTS shared common co-morbidities and lifestyle risk factors with age-adjusted odds ratio between 1.2 and 5.2. In logistic regression model (R(2)=0.361), the strongest associated with ED factor found was IPSS symptom score, followed by hypertension, IPSS-related quality of life, age, diabetes mellitus, obesity and unmotivated fatigue.

Interphase argyrophilic nucleolar organiser regions and nucleolar counts in transitional cell bladder tumours.

AIMS: To see whether a correlation exists between clinicopathological parameters, argyrophilic nucleolar organiser regions (AgNORs), and nucleolar counts in the nuclei of tumour cells in patients with transitional cell bladder carcinoma. METHODS: Paraffin wax embedded sections from a total of 62 cases of primary transitional cell bladder carcinoma were stained with the silver colloid method. The numbers of individual silver grains (AgNORs) in nucleoli and the numbers of nucleoli were counted in 100 nuclei. The correlation between AgNORs and nucleolar counts and patients' sex, tumour grade, disease stage, recurrence pattern, and tumour related survival was analysed. RESULTS: The numbers of nucleoli in tumour cells were higher in male patients (p < 0.032). AgNOR numbers correlated with tumour grade (p = 0.017) and recurrence (p = 0.046). In multivariate analysis, the variation coefficient of AgNOR scores was found to be the only independent predictor of the duration of tumour free period in patients with recurrent disease (p < 0.002). AgNOR scores and nucleolar counts were of no value in distinguishing superficial and invasive tumours or in predicting tumour related survival. CONCLUSIONS: AgNOR scores in transitional cell bladder carcinoma reflect variations in tumour biological behaviour; however, the clinical value of this technique in patients with urinary bladder carcinoma is limited.