In recent years, a large amount of data has been accumulated on the relationship between cognitive impairment, dementia and diabetes mellitus. This article presents an overview of modern literature, including the definition of cognitive functions, the modern classification of cognitive impairment, pathogenetic mechanisms of diabetes mellitus influence on the development of cognitive impairment and dementia (neurogenesis, integrity of the blood-brain barrier, systemic inflammatory reactions, hyper- and hypoglycemia, insulin resistance, vascular dysfunction of the microvasculature and increase in glucocorticosteroids). The influence of anti-diabetic medications on cognitive functions has been examined in detail: insulin preparations, oral hypoglycemic agents of the biguanide group (metformin), thiazolidinediones (rosiglitazone and pioglitazone), sulfonylurea derivatives (glycazide, glipizide), a-glucosidase (acarbose) inhibitors, incretin-directed therapy (receptor agonists glucan-like peptide (exenatide and liraglutide) and inhibitors of dipeptidylpeptidase type 4 (sitagliptin, vildagliptin and alogliptin)), sodium glucose inhibitors cotransporter type 2. The data demonstrating a multidirectional effect on the cognitive functions of various antidiabetic drugs is presented, the possible influence on the rate of progression of cognitive impairment and the risk of dementia of intensive control of plasma glucose level in comparison with the standard decrease in patients with type 2 diabetes is analyzed.
Arterial hypertension (AH) is an important public health problem worldwide. The high prevalence of hypertension can partially be explained by an increase in blood pressure (BP) with age and a rapid increase in the elderly population (over 65 years old). Despite the effect of age on BP, evidence of target blood pressure values for its control in patients of older age groups with AH is limited, especially if they have frailty. There are data from a number of studies that reveal a relationship between lower BP levels and all-cause mortality in patients with AH in older age groups. In clinical practice, decisions regarding BP targets are especially difficult in elderly people with frailty who often do not meet the criteria for inclusion in randomized controlled trials and for this group of elderly people the clinical recommendations of leading communities do not give a specific answer about the target BP level. The evidence base regarding the target BP values in the treatment of AH in patients of older age groups with frailty presented in this review is not numerous, but its analysis suggests the advantages of higher BP numbers, with maximum systolic BP values of 165 mm Hg and diastolic BP of 90 mm Hg, while lower BP levels may be unsafe in terms of increasing the risk of adverse cardiovascular events and mortality from both cardiovascular causes and all causes. Polymorbidity in combination with polypharmacy and an increased risk of adverse events require a patient-oriented individual approach to the appointment of antihypertensive therapy. For a final decision on the management tactics of patients with AH and frailty, large, specially designed randomized clinical trials are needed.
In the article questions of prevention of stroke, including repeated ones, are considered. The choice of anticoagulant therapy is discussed in patients with atrial fibrillation and a number of concomitant diseases - coronary artery disease, diabetes mellitus, chronic kidney disease, chronic heart failure. The data of subanalyses of a randomized clinical trial of ARISTOTLE are presented, indicating a high profile of efficacy and safety of the new oral anticoagulant apixaban in these categories of patients.
Arterial hypertension (AH) is the major modifiable risk factor for cognitive impairment (CI), including dementia, CI in cerebrovascular and neurodegenerative diseases, including Alzheimers disease. By 2050, the number of people with dementia will approximately 3 times increase due to the aging population and limited opportunities for drug prevention and treatment of severe CI. In connection with the above, it seems necessary to create an expert consensus, which would summarize the evidence-based medicine data available to date on the effect of antihypertensive therapy (AHT) on cognitive function (CF). In the expert consensus, the data of prospective randomized clinical trials, observational and population studies, meta-analyzes on the effect of AHT on the risk of dementia and CI progression, including certain CF, were summarized and analyzed. The consensus considers the effect of antihypertensive drugs (AHD) on various cognitive domains. Literature data give evidence that AHT reduces the risk for dementia, including vascular dementia, reduces the risk of for dementia in Alzheimers disease, as well as reduces the risk and can prevent the progression of non-dementia CI. The effect of AHT on various CF has been little studied. Most meta-analyzes did not reveal the benefits of any class of AHD; however, one study demonstrated the advantage of angiotensin receptor blockers, while another study diuretics. The consensus emphasizes that, given the high incidence of AH in the general population, AHT may be one of the most effective ways to prevent CI or delay CI progression. The effect of different classes of AHD on CF requires further study. It is necessary to conduct a larger number of well-designed randomized clinical trials that would assess the state of executive functions in patients with AH.
Aim. To assess the efficacy and safety of Vamloset (amlodipine/valsartan 5/80, 5/160, 10/160 mg) and Co-Vamloset (amlodipine/valsartan/hydrochlorothiazide 10/160/12.5, 10/160/25 mg) in achieving the target levels of blood pressure (BP) in patients with stage 23 arterial hypertension (AH). The article discusses indicators affecting adherence to antihypertensive therapy (AHT). Material and methods. The VICTORY II Russian study in 8 clinical centers of the Russian Federation included 103 patients over 18 years of age with stage 23 essential AH (who havent been previously treated and have office systolic BP160 mm Hg and/or diastolic BP100 mm Hg or who havent reached the target office blood pressure with mono- or double AHT). The Full Analysis Set (FAS) for efficacy analysis included 99 patients, a FAS population with the restoration of data missed using Last Observation Carried Forward. The SF-36 questionnaire for assessing the quality of life, the effect on erectile function in men, the convenience of current therapy from the point of view of patients were analyzed after 16 weeks of treatment. The Per Protocol (PP) population included 80 patients completing the study without major protocol deviations to assess the primary parameters of efficacy. All patients with stage 2 hypertension were prescribed Vamloset (amlodipine/valsartan 5/80 mg), with stage 3 hypertension amlodipine/valsartan 5/160 mg. Dose titration of Vamloset and Co-Vamloset (LLC Krka-RUS) was carried out every 4 weeks according to the AHT schemes. Results. The studys active phase included 100 patients aged 59.510.9 years (women 59%) with AH duration of 83.48.4 months; 83% of patients received AHT prior inclusion in the study. In the PP population, 16 week- AHT with Vamloset or Co-Vamloset allowed reaching the target BP in 90.0% of patients (95% confidence interval [CI] 81.295.6). Overall clinical efficacy was achieved in 98.8% of patients (95% CI 93.2100.0). All treatment regimens were characterized by high patient compliance. In the total group, 50% of patients rated their AHT as more convenient than they had previously used; of them, in the stage 2 AH group 47.8%, in the stage 3 AH group 53.3%. Metabolic neutrality with regard to at least one indicator was observed in 100% of patients, with regard to 6 indicators in 43.9% [33.9; 54.9]. For all 98 patients included in the analysis, changes in all SF-36 scales, except for physical functioning (p=0.339), were statistically significant (p0.05). The effect of AHT on erectile function was rated as positive in 51.3% of men. Good tolerance data are consistent with the established drug safety profile. Conclusion. In the VICTORY II study, high antihypertensive efficacy and an improvement in a set of indicators of optimal adherence to AHT by Vamloset and Co-Vamloset within 16 weeks were proved in patients with stage 23 AH. Patients high rating for quality improvement in the quality of life, safety of therapy and ease of use ensured optimal compliance of Vamloset and Co-Vamloset therapy throughout the study.
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