Sergei Golovanov

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BACKGROUND Sexual concurrency is associated with higher prevalence of sexually transmitted diseases (STDs) including HIV. However, most studies have focused only on the concurrency of the individual participant (individual concurrency) and not on concurrency of their sexual partners (partner concurrency). Furthermore, limited concurrency information is(More)
Investigations initiated in the Research Urological Institute headed by professor N. A. Lopatkin in 1984 on development of an original Russian lithotriptor URAT-II were successfully finished in 1987. Since that time the design has been advanced. The investigators plan to introduce a novel polyfunctional lithotriptor ARKO-LIT with double guidance system and(More)
Activity of superoxide dismutase (SOD) in red cell membranes, levels of malonic dialdehyde (MDA) and dienic conjugates (DC) in blood plasma, red cells and urine were studied in 53 nephrolithiasis patients. A session of extracorporeal shock wave lithotripsy stimulated lipid peroxidation (LPO) in renal parenchyma manifesting with increased DC excretion with(More)
We conducted a cross-sectional study to determine whether the time between two consecutive sexual partnerships (gap) is associated with sexually transmitted infections (STIs) in Russia. A self-administered questionnaire was administered to STI clinic patients in St. Petersburg and participant’s STI data at the time of enrollment in the study was collected(More)
Hypoxic preconditioning and pretreatment with pentoxifylline, α-tocopherol, or their combination promotes stabilization of Po2 in rabbit kidney cortex in the early reperfusion period (in experiments with α-tocopherol at a significantly lower level), while after 30-min reperfusion, the protective effect of α-tocopherol (especially in combination with(More)
Acute urine retention is a frequent complication in patients with benign hyperplasia of the prostate gland. According to studies made on experimental animals and people, it is accompanied by the deterioration of the bladder blood supply. This study attempts to explore the relationship of intramural blood flow, production of reactive oxygen species, and(More)
The activity of oxidant metabolism was studied in leukocytes from the whole blood of 23 patients diagnosed to have urolithiasis, chronic pyelonephritis in remission. Leukocyte function was evaluated by registration of luminol-dependent chemiluminescence. Barium sulfate microcrystals served leukocyte stimulator. Chemiluminescence was registered by(More)
The paper comparatively analyzes the effect of the mineral water "Penta" on the biochemical parameters of blood and urine, which characterize the functional activity of renal metabolic processes. A group comprising 10 examinees without renal disease took water by the routine mineral water scheme for 4 days. Comparison of the biochemical parameters before(More)
The National External Quality Assessment Scheme for analysis of the urine is presented. It includes 9 parameters: protein, glucose, creatinine, urea, uric acid, sodium, potassium, hemoglobin, and pH. Two lyophilized of liquid control samples of urine (normal and abnormal) are distributed to the participating laboratories. An original evaluation protocol for(More)