Репозиторий Университета

© 2018 Ima-Press Publishing House. All rights reservbed. Diffusion tensor magnetic resonance imaging (DT-MRI) is the only noninvasive technique that makes it possible to study white matter microstructure in vivo and to quantify the images obtained. Objective: to study white matter in middle-aged treatment-naïve patients with uncomplicated grade 1-2 essential hypertension (EH), by using DT-MRI. Patients and methods. The investigation enrolled 82 people aged 40-59 years (41 patients with EH and 41 healthy individuals (a control group)). Twenty-four blood pressure monitoring and brain MRI were performed in different modes (T1 MPRAGE, T2 TSE, T2 FLAIR, and DTI). Results. White matter hyperintensities (WMHs) were found in 7.3% of the healthy individuals and in 53.7% of the hypertensive patients (p=0.0002). The latter had significantly lower fractional anisotropy (FA) values in the white matter of the left inferior frontal gyrus than the healthy individuals (0.39±0.06 and 0.45±0.09, respectively; p< 0.001). FA was lower in the hypertensive patients than in the healthy individuals not only in the presence of WMHs (the left inferior frontal gyrus white matter was 0.397±0.071 and 0.45±0.09, respectively; p=0.009; the genu of the corpus callosum was 0.79±0.04 and 0.81±0.05, respectively; p=0.045), but also in the absence of WMHs (the left inferior frontal gyrus white matter was 0.378±0.073 and 0.45±0.09, respectively; p=0.0007). Discussion. The treatment-naïve patients with uncomplicated grade 1-2 EH with short-term (2,3 year) duration were found to have significantly lower FA values in the left inferior frontal gyrus white matter than the healthy normotensive subjects of the same age. Thus, the microstructural integrity of white matter is impaired in middle-aged hypertensive patients even at the earliest disease stages. Conclusion. Middle-aged treatment-naive patients with uncomplicated grade 1-2 EH have lower FA in the left inferior frontal gyrus white matter even in the absence of WMHs.

© 2018 Vserossiiskoe Obshchestvo Kardiologov. All rights reserved. The article is focused on the issues of clinical efficacy of telmisartan - angiotensin II type 1 receptor blocker from the perspective of its influence on cardiovascular risk in systemic hypertension patients. The results presented, of a variety of studies, witnessing potent antihypertensive and protective properties of telmisartan. The opportunities described, for usage of the drug in high risk patients, its efficacy in cardio- and nephroprotection. Special attention is paid for an exclusive property of telmisartan to be an agonist of PPAR γ-receptors, hence to correct glucose and lipid metabolism in patients with metabolic syndrome and diabetes.

© Ima-Press Publishing House. All rights reserved. Objective: to investigate the effect of indapamide/perindopril fixed-dose combination (FC) on 24-hour blood pressure (BP) and cognitive functions in antihypertensive treatment-naive middle-aged patients with uncomplicated grade 1-2 essential arterial hypertension (EAH). Patients and methods. The open prospective study enrolled 25 patients (9 men and 16 women) aged 40-59 years with a diastolic BP of 90-109 mm Hg and/or a systolic BP of 140-179 mm Hg, as evidenced by routine measurements. As starting antihypertensive therapy, the patients received indapamide 1.25/perindopril 5 mg FC once daily in the morning; if necessary, after 2 weeks (if the routine blood pressure was ≥140/90 mm Hg) they took indapamide 2.5/perindopril 10 mg once daily in the morning. The follow-up period was 14-16 weeks. Before and at the end of the follow-up, the patients underwent 24-hour ambulatory BP monitoring (ABPM) and evaluation of cognitive functions using the Montreal Cognitive Assessment (MoCA), ten-words test (immediate and delayed word recall), verbal association test (literal and categorical associations), number connecting test (Trail making test (TMT), part A and numbers and letters connecting test (TMT) part B), and Stroop test. Results. At the end of the follow-up period, treatment with indapamide/perindopril fixed-dose combination showed a statistically significant reduction in BPs, as evidenced by routine measurements and ABPM (during 24-hour, and awake and sleep periods); a statistically significant cognitive improvement: an increase in the number of the so-called words in the ten-words test during both immediate (from 5.5±1.6 6.5±1.5 words; p=0.02 vs baseline) and delayed (from 6.2±1.7 to 7.4±1.4 words; p=vs baseline) recalls, a decrease in the performance time of TMT-B (from 112.6±42.5 to 90.4±28.4 sec; p=0.02) and Stroop test Part 3 (from 135.5±50.1 to 112.6±19.6 sec; p=0.02), and a larger number of called words in the categorical associations test (from 6.5±2.4 to 8.1±2.9 words; p=0.02). Conclusion. The results obtained indicate that in treatment-naive middle-aged patients with EAH, indapamide/perindopril fixed-dose combination assures an effective reduction in BPs, as evidenced by routine measurements and ABPM, also improves cognitive functions, particularly attention, information processing speed, semantic memory, cognitive flexibility, and short-term and long-term memory.

© 2018 Ima-Press Publishing House. All rights reserved. Arterial spin labeling (ASL) is a promising non-invasive method to assess cerebral perfusion, which identifies a decrease in cerebral blood flow (CBF). Objective: to assess cerebral perfusion in middle-aged untreated patients with uncomplicated grade 1-2 hypertension compared to same-age healthy controls. Patients and methods. 33 patients with essential hypertension and 40 healthy individuals (a control group) at the age of 40-59 years were examined. 24-hour blood pressure (BP) monitoring and brain magnetic resonance imaging were performed in different modes (T1 MPRAGE, T2 TSE, T2 FLAIR, DTI, and ASL). Results. White matter hyperintensive changes were found in 7.5% of the healthy individuals and in 51.5% of the hypertensive patients (p = 0.0002). In hypertensive patients, CBF in the cortical plate of anterior frontal regions was significantly (p ( 0.001) lower than that in the controls: right CBF, 39.1±5.6 and 45.8±3.2 ml/100 g/min, respectively; left CBF, 39.2±6.2 and 45.2±3.6 ml/100 g/min, respectively. In hypertensive patients with white matter hyperintensive changes, CBF was significantly lower than that in the controls: right CBF, 38.5±5.9 ml/100 g/min (p = 0.0001); left CBF, 39.2±6.7 ml/100 g/min (p = 0.002), and in those without these changes, right CBF was 39.5±5.1 ml/100 g/min (p = 0.0002); left CBF was 38.9±4.3 ml/100 g/min (p = 0.00002). Correlation analysis revealed significant inverse correlations of CBF with BP and systolic BP variability. Conclusion. Lower cerebral perfusion occurs in middle-aged untreated patients with uncomplicated grade 1-2 hypertension even in the absence of white matter hyperintensity foci.