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Biomedical subjects

B P Mishchenko

Publications and source records attributed to B P Mishchenko.

At least 19 recordsLinked to original sources
PubMed2002

[Glucophot BP-"M" analyzer for blood analysis].

Miniature analyzer Glucophot BP-"M", intended for express measurements of glucose concentrations in capillary blood, was tested under clinical conditions. The reference method was the hexokinase method for glucose measurements on a Spectrum 11 biochemical analyzer (Abbott); in addition, glucose measurements were carried out on a One Touch-11 glucometer (Johnson-Johnson). The results evidence that the reproducibility and correctness of glucose analysis by the Glucophot BP-"M" analyzer both in health and disease met the requirements to laboratory measurements performed by "dry" chemical methods and demonstrated its high analytical reliability.

Blood Glucose↗
PubMed1995

[Kidney lesions in non-insulin dependent diabetes mellitus].

Because little is known about disordered metabolism of uric acid as a pathogenetic mechanism of renal damage in non-insulin-dependent diabetes mellitus (NIDDM) it was studied in 75 NIDDM and 48 IDDM patients. Clinical examination of the patients included evaluation of purin metabolism according to serum uric acid, diurnal urine excretion, uric acid clearance. Hyperuricemia occurred more frequently in NIDDM. Positive correlation was observed between hyperuricosuria and the severity of diabetic nephropathy which was more pronounced in IDDM.

Adult↗
PubMed1991

[Heart valve bioprostheses of the "Bionix" series. 6-year experience with the mitral valve replacement].

The main cause of cardiac valve bioprosthesis dysfunction is mechanical rupture of the cusps consequent upon the development of "fatigue" tensions and calcification of the biologic tissue. The technology of "Bionix" prostheses manufacturing implies prevention of these complications by means of supporting frameworks of variable rigidity (dumping stroke loads) and the use of a calcinosis inhibitor in the process of chemical stabilization. Experimental research confirms the certain effectiveness of such an approach to solving the problem of bioprosthesis durability. Experience in clinical application of biological valves of this series showed that by the 5th postoperative year the stability of good results was 90.0 +/- 2.2%; absence of thromboembolic complications in 93.3 +/- 2.4%, and no need to operate because of dysfunction of the bioprosthesis in 96.6 +/- 2.1%.

Adult↗
PubMed1989

[Clinico-laboratory parallels in children with aggravated heredity of cholelithiasis].

A comprehensive examination of children with aggravated heredity regarding cholelithiasis revealed in the majority of them the first stage of cholelithiasis, namely abnormalities in physicochemical properties of the bile. It is demonstrated that formation of the pathology under consideration is promoted by combination of such factors as hereditary aggravation regarding cholelithiasis, complications of the perinatal period, vegetative disturbance, biliary dyskinesia, and derangement of the intestinal flora.

Adolescent↗
PubMed1986

[Clinical significance of enzymuria in glomerulonephritis in children].

The authors presented the results of a study of enzymuria (cholinesterase, gamma-glutamine transferase, alkaline phosphatase, beta-galactosidase and lactate dehydrogenase with separate determination of N- and M-subunits) in 20 patients with a mixed form of glomerulonephritis (GN), 36 with the nephrotic form of GN and 13 patients with the hematuric form of GN. The clinical importance of the determination of enzymatic activity in the urine in GN of children lies in the recognition of the degree of damage of the glomerular filter as well as the nephrothelium. Basing on enzymuria pathophysiological syndromes found in various combinations in the above forms of GN were identified. Three degrees of damage of the permeability of the glomerular filter were defined for high molecular proteins. Differences in individual values of the activity of some enzymes gave rise to differential-diagnostic coefficients as well as differential-diagnostic tables which could be used for differential diagnosis between the GN mixed and nephrotic forms.

Adolescent↗
PubMed1982

[Determination of enzyme activity and beta 2-microglobulin concentration in the urine in chronic diffuse glomerulonephritis and hypertension].

Activity of alanine aminopeptidase (AAP), aryl sulphatase A (ASA) beta-glucoronidase (beta-GA) and the concentration of beta 2-microglobulin in urine was determined in 12 patients with chronic diffuse glomerulonephritis and in 16 patients with essential hypertension. The control group consisted of 6 practically healthy persons. The AAP activity in urine of patients with chronic glomerulonephritis was significantly higher than that in healthy subjects. Renal excretion of lysosomal enzymes (ASA, beta-GA) appeared to be less expressed; no significant differences as regard to their excretion were noted between the above mentioned groups. Concentrations of beta 2-microglobulin in urine of patients with chronic glomerulonephritis 6 times exceeded its concentration in healthy persons and in hypertensive patients, more than 3 times as much. Determination of the enzyme activity and beta 2-microglobulin concentration in urine may serve a test in differential diagnosis, for evaluation of the treatment efficiency of patients with chronic glomerulonephritis accompanied by arterial hypertension and those suffering from essential hypertension.

Adult↗