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Biomedical subjects

G N Skriabin

Publications and source records attributed to G N Skriabin.

8 recordsLinked to original sources

[A luminescent cytological method of the determination of sex gonad hormonal activity in males].

A method for assessing gonadal hormonal activity in men is suggested. It consists in fluorescent and cytologic examinations of navicular fossa epithelium making use of a fluorescent marker (acridine orange) and is based on specific sensitivity of navicular fossa epithelium to male sex hormones, because navicular fossa is formed in the course of embryogenesis from the urogenital sinus under the effect of androgen induction. Navicular fossa epithelium reacts to changed androgen/estrogen ratio by restructuring which is characterized by cellular apparatus regression or depression. Parallel with the cytologic reaction, blood androgen levels were measured in patients and normal subjects. The authors have developed a classification singling out four basic and four intermediate epithelial reactions. The suggested method was used in examinations of 327 patients with various andrologic abnormalities and of 96 healthy men. Examinations have demonstrated a high diagnostic value of this method in assessment of the hormonal balance (androgens and estrogens) in men and the possibility of using it as a screening test in andrologic abnormalities.

Acridine Orange↗

[The characteristics of histocompatibility antigen distribution in urolithiasis patients with a phosphorus metabolic disorder].

Phosphorus metabolic disturbances play a great role in the occurrence of urolithiasis. This study covered 150 patients with urolithiasis to establish correlations between the frequency of histocompatibility antigens and the increase in blood and urinary phosphorus levels. The HLA antigens were identified by the routine microlymphocytotoxic method involving a histotyping serum panel. The ABO antigens and rhesus were determined by the agglutination method by using reference sera. The study revealed specific distribution of histocompatibility antigens in urolithiasis patients with disturbed phosphorus metabolism. Hyperphosphatemia correlated with the higher frequency of HLA-B35 (chi 2 = 9.89) and E/E system rhesus (chi 2 = 8.63); hyperphosphaturia showed a negative association with the HLA-A28 antigens (chi 2 = 9.7), as well as with E/e (chi 2 = 14.69) and e/e (chi 2 = 39.36) and a positive association with HLA-B13 (chi 2 = 5.98) and B35 (chi 2 = 36.58). The highest relative risk for hyperphosphatemia associated with the B27 and B35 antigens was observed with genetic predisposition, being 3.63 and 7.13, respectively. B12- and B35-positive individuals were at higher risk for hyperphosphaturia up to 11.25. There were significant differences in antigen frequency, and sex, genetic predisposition to urolithiasis, association of phosphorus metabolic disturbances with other metabolic disorders, and their effects of parathyroid lesions, etc. The findings reveal the immunogenetically induced risk for the occurrence and development of urolithiasis with disturbed phosphorus metabolism to make goal-oriented prophylactic measures.

ABO Blood-Group System↗