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Biomedical subjects

L R Poliantseva

Publications and source records attributed to L R Poliantseva.

At least 19 recordsLinked to original sources

[The effect of a protein loading test on the fibrinolytic system in patients with chronic glomerulonephritis and amyloidosis].

Investigation of the reserves of the fibrinolytic system with the aid of protein stimulation was carried out in 10 patients with chronic glomerulonephritis and in 10 patients suffering from amyloidosis. All the patients manifested proteinuria exceeding 3.5 g/day and other symptoms of nephrotic syndrome of varying intensity. Renal function was preserved in all the patients. The reserves of the fibrinolytic system were measured by analyzing blood plasma and urine before and after beef protein stimulation. The data revealed reciprocal responses of activator activity in blood plasma and urine in patients suffering from chronic glomerulonephritis and amyloidosis. In patients with amyloidosis, the test revealed complete depletion of activator activity in urine while its considerable reserves were preserved in blood plasma of the systemic channel.

Amyloidosis

[Antistreptococcal antibodies in the blood serum of glomerulonephritis patients].

To study humoral antistreptococcal immunity, 29 patients with acute glomerulonephritis (AGN), 211 patients with chronic glomerulonephritis (CGN) and 30 healthy donors were examined. According to EIA, blood sera of the indicated groups demonstrated antibodies (AB) to structural components of Streptococcus--A-polysaccharide (A-ps) and hyaluronic acid (HA) and to its extracellular products--streptokinase (SK) and streptolysin-O (ASLO). It has been shown that in the blood of AGN patients, the levels of AB to A-ps, SK and ASLO were high. The highest level of AB and SK was detected in 55% of the patients with the disease standing of up to half a year. In patients of all the clinical groups of CGN, the levels of AB to A-ps, SK and HA were elevated. The degree of the rise of the levels of all AB depended on the disease activity. Of prognostic importance in the chronicity of AGN and progression of CGN are high titers of AB and SK. The etiological role of streptococcus in glomerulonephritis and its importance in CGN exacerbation and prognosis are under discussion.

Adolescent

[Laser treatment of patients with chronic glomerulonephritis].

Helium-neon laser therapy of patients suffering from mixed and nephrotic glomerulonephritis demonstrated hypotensive, diuretic and fibrinolytic activity boosting clinical effects. The use of the new treatment method seems to be justified, since all the patients given laser therapy manifested pronounced resistance to the pathogenetic therapy carried out previously (glucocorticoids, cytostatics, hypotensive and diuretic drugs). The presence of diverse effects and lack of complications suggest a broader-scale use of laser therapy in nephrology. At present the authors are analyzing the ++patho-chemical bases of the therapeutic efficacy of laser therapy of patients suffering from chronic glomerulonephritis. The results will be reported in the next paper.

Adult

[The clinico-morphological characteristics of psoriatic nephropathy].

Based on studying the data obtained during examination of patients with psoriasis combined with the urinary syndrome possible varieties of psoriatic nephropathy, namely chronic glomerulonephritis (CGN) and amyloidosis were distinguished. CGN combined with psoriasis was mainly represented by latent glomerulonephritis (GN) and morphologically, it was mostly represented by the mesangio-proliferative variant, with IgA and C3 being fixed on the basal membrane of the capillaries and in the mesangium. The clinicomorphological feature of that form of psoriatic GN is combination of the signs of both associated CGN and hyperuricemia and IgA-nephritis. Special emphasis is laid on the diagnosis of rapid-progressing GN which is of paramount importance for institution of early etiopathogenetic therapy. Amyloidosis associated with psoriasis is characterized by the signs of acquired disease (AA-amyloidosis) and does not differ in its course from amyloidosis coupled with other diseases.

Adolescent

[Clinical value of the study of hemostasis in nephrology].

The results of many-year studies on the humoral and platelet links of hemostasis in chronic glomerulonephritis (CGN) and amyloidosis were analyzed with relation to a stage of disease and prognosis of its course. Activation of the blood coagulation system (BCS), platelet hyperaggregation and suppression of the fibrinolytic system were revealed in CGN. Hypercoagulation was most noticeable in patients with active and prognostically unfavorable GGN types correlating with the frequency of local (in the kidney) intravascular coagulation, the frequency of peripheral thromboses and DIC-syndrome. In amyloidosis hypercoagulation shifts of BCS were combined with the activation of fibrinolysis and thrombocytopenia. Pathogenetic, adaptive and compensatory significance of changes of system of hemostasis revealed in CGN and amyloidosis was discussed.

Adolescent

[Disorders of purine metabolism as an etiological factor in renal pathology].

Of 3200 patients admitted to the nephrology department within several years, hyperuricemia was detected in 696. Excluding from this number persons with signs of chronic renal insufficiency (146 persons) and patients who were treated by diuretics (89), the frequency of hyperuricemia was 16.2% which exceeded almost 2-fold (9.2%) the value determined during the examination of 594 healthy persons. The authors discussed a possibility of early development of renal pathology in purine metabolic derangement with hyperuricosuric and hyperuricemic stages characterized by certain clinical peculiarities, including a possibility of development of immune complex nephritis.

Arthritis, Gouty

[Immune complex hyperuricemic nephritis: aspects of its morphology and pathogenesis].

The authors described the results of an immunohistochemical, electron microscopic and morphometric study of the kidney bioptates of 45 patients with latent glomerulonephritis with hyperuricemia, 8 patients with primary gout and 12 patients with latent glomerulonephritis without hyperuricemia. Two possible variants of the involvement of the renal glomerula were revealed against a background of purine metabolism: typical immunocomplex glomerulonephritis and the so called "reactive" mesangial changes. The expression of interstitial changes (by the results of histometric investigation) was maximum in gout, slightly less in latent nephritis with hyperuricemia and minimum in nephritis without hyperuricemia. The authors emphasized the possibility of immunocomplex nephritis as one of the variants of renal lesion in gout and hyperuricemia and the necessity of specifying therapeutic modalities to be used in this condition including general nephrological approaches to the treatment of latent nephropathies.

Biopsy, Needle