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Biomedical subjects

V B Mychka

Publications and source records attributed to V B Mychka.

9 recordsLinked to original sources

[Results of nonmedical interventions in multicenter randomized open study of efficacy of lifestyle modification and therapy with quinapril in patients with obesity and hypertension].

There is a pathogenetic interrelationship between obesity and hypertension. Moreover it has become evident that the use of most modern and active antihypertensive drugs can not be effective without concomitant treatment of obesity. This study was conducted in 18 cities of Russian Federation in order to demonstrate influences of lifestyle changes on hypertension and levels of cardiovascular risk factors. The objective was to attract attention of physicians and patients to the problem of obesity and hypertension and to their inherent dangers.

Antihypertensive Agents↗

[Cerebrovascular complications in metabolic syndrome: possible approaches to decrease risk].

AIM: To compare brain perfusion in hypertensive patients with diabetes mellitus type 2 (DM2) or metabolic (MS) syndrome and hypertensive patients without clinicobiochemical signs of DM2 or MS; to study enoxaparin effects on brain perfusion in DM2 and arterial hypertension (AH). MATERIAL AND METHODS: Seventy patients included in the study were divided into three groups: 30 patients with DM2 and AH (group 1), 30 patients with MS and AH (group 2) and 10 AH patients without manifestations of MS or DM2 (group 3). All the patients have undergone single-photon emission computed tomography (SPECT) of the brain, carbohydrate and lipid metabolism were examined. RESULTS: Deterioration of brain perfusion was more prominent in DM2 and MS patients with AH than in hypertensive patients with normal metabolism. Stress test with acetasolamide revealed defective autoregulation of cerebral blood flow in hypertensive patients with DM2. A 6-week therapy with enoxaparin significantly improved brain perfusion in hypertensive patients with DM2. CONCLUSION: Enoxaparin treatment of hypertensive DM2 and MS patients with abnormal perfusion of the brain can be used for prevention of cerebrovascular complications.

Adult↗

[Thiaside diuretics in combination with inhibitors of angiotensin-converting enzyme in patients with diabetes mellitus type 2 comorbid with arterial hypertension].

AIM: To study the effect of co-renitek monotherapy for 16 weeks on parameters of 24-h monitoring of arterial pressure, carbohydrate, lipid, purin metabolism in patients with mild and moderate arterial hypertension (AH) and diabetes mellitus (DM) type 2. MATERIAL AND METHODS: 20 patients with DM type 2, mild or moderate AH received co-renitek (1-2 tablets a day) for 16 weeks. Before the treatment and 16 weeks later the patients were examined (24-h AH monitoring, carbohydrate, lipid, purin, electrolyte metabolism). RESULTS: Co-renitek treatment of DM type 2 patients with hypertension led to a significant lowering of mean systolic and diastolic pressure, improvement of 24-h AP profile and reduction of fasting glucose level. Co-renitek proved to be metabolically neutral in relation to lipid, purin and electrolyte metabolism. CONCLUSION: Co-renitek is effective and safe antihypertensive drug for treatment of arterial hypertension in patients with diabetes mellitus type 2.

Adult↗

[The use of insulin-modified intravenous glucose tolerance test in the diagnosis of insulin resistance in patients with metabolic syndrome].

Fifty-five patients (mean age 42.3) with clinical signs of metabolic syndrome were investigated. The peroral glucose-tolerance and insulin-modified intravenous glucose-tolerance tests were used in the diagnosis of insulin-resistance. According to the SI index, a lower tissue sensitivity to insulin was detected in 48 (87%) of patients; it is noteworthy, that a low SI index was registered in some of them, when indirect signs of insulin-resistance, like hyperglycemia, hyperinsulinemia, were absent.

Administration, Oral↗

[Cardiovascular complications of type 2 diabetes].

Cardiovascular complications due to micro- and microangiopathy are main causes of death of patients with type 2 diabetes. Principal role in development of these complications belong to hyperglycemia which triggers such pathological processes as endothelial dysfunction, oxidative stress, impairment of hemostasis and blood rheology. Therefore glucose lowering therapy is pathogenetic not only for diabetes but also for its cardiovascular complications. Glucose lowering drugs should be maximally effective and safe for the cardiovascular system. These requirements gliclaside which in addition to pronounced glucose lowering effect also acts on all links of the pathogenesis of micro- and macroangiopathies. While selecting cardiovascular drugs one should take into consideration their effect on carbohydrate metabolism and cardioprotective properties. Angiotensin converting enzyme inhibitors are leaders in this field.

Cardiovascular Diseases↗

[Role of hypothalamo-hypophyseal-adrenal axis in the pathogenesis of arterial hypertension in patients with prolactinoma of the anterior lobe of the hypophysis].

AIM: To elucidate mechanisms underlying arterial hypertension (AH) in patients with hyperprolactinemia, prolactin-secreting adenoma of the anterior lobe of the hypothesis, in particular. MATERIAL AND METHODS: 9 females with microprolactin-secreting and 4 females with macroprolactin-secreting adenoma of the anterior lobe of the hypophysis (mean age 33.8 +/- 3.7 years) were examined using radioimmunoassay of the hormones, computed tomography, MR-tomography of the adrenals and brain. RESULTS: Humoral regulation of the hypothalamic-hypophyseal-adrenal axis was found different in patients with microadenoma due to dopaminergic insufficiency of the hypothalamus and in patients with macroadenoma--tumor of the hypophyseal genesis. Patients with microadenoma were diagnosed to have low-renin diastolic arterial hypertension with clinical symptoms of hyperaldosteronism and high levels of plasma aldosterone. Patients with macroadenoma had normal arterial pressure, aldosterone levels and plasma renin activity. Treatment with parlodel, agonist of dopaminergic receptors, reduced arterial pressure, prolactin level, plasma aldosterone and raised plasma renin activity in patients with microadenoma. Such changes were not observed in patients with macroadenoma. CONCLUSION: It is suggested that one of the causes of AH in patients with microprolactin-secreting hypophyseal adenoma lies in hyperaldosteronemia which develops as a result of dopaminergic insufficiency of the hypothalamus and hyperprolactinemia.

Adult↗

[The prolonged-action form of Lomir (isradipine) in the treatment of mild and moderate essential hypertension].

24-hour monitoring of arterial pressure has been performed outpatiently in 20 subjects with mild or moderate essential hypertension using portable system Space Labs 90207. The design of the study implied 2 weeks of observation without any treatment followed by a 4-week course of lomir SRO-5 plus a 2-week course of lomir administration in a double dose. Control examination was performed at the end of each period. It was established that a 4-week lomir course results in a lowering of systolic and diastolic pressure by 8.4 + -2.1 and 6.9 + -1.3 mm Hg, respectively. Double-dose lomir was also effective: a fall in both systolic and diastolic pressure by 15.6 + -3.2 and 8.1 + -1.8 mm Hg, respectively, was achieved.

Adult↗