Ratio of 4:1 between ZnGeAs2and MnAs phases in a single composite and its impact on the structure-driven magnetoresistance.

A strong influence of the lattice degree of freedom on magnetoresistance (MR) under high pressure underlies the conception of 'structure-driven' magnetoresistance (SDMR). In most magnetic or topological materials, the suppression of MR with increasing pressure is a general trend, while for some magnetic composites the MR enhances and even shows unusual behavior as a consequence of structural transition. Here we investigated the SDMR in the composite material based on the ZnGeAs2semiconductor matrix and MnAs magnetic inclusions in a phase ratio of 4:1. At ambient pressure, its magnetic and transport properties are governed by MnAs inclusions, i.e. it shows a Curie temperatureTC≈ 320 K and metallic-like conductivity. Under high pressure, the low-field room temperature MR undergoes multiple changes in the pressure range up to 7.2 GPa. The structural transition in the ZnGeAs2matrix has been found at ∼6 GPa, slightly lower than in the pure ZnGeAs2(6.2 GPa). The huge SDMR as high as 85% at 6.8 GPa and 2.5 kOe, which contains both positive and negative MR components, is accompanied by a pressure-induced metallic-like-to-semiconductor-like transition and the enhanced ferromagnetic order of MnAs inclusions. This observation offers a competing mechanism between the robust extrinsic ferromagnetism and high-pressure electronic properties of ZnGeAs2.

[Features of the metabolism of polyunsaturated fatty acids in type 2 diabetes mellitus].

Type 2 diabetes mellitus (T2DM) is a widespread disease with a high risk of cardiovascular complications, disability and mortality. The progression of T2DM is closely related to lipid metabolism disorders, caused both by insufficient intake of polyunsaturated fatty acids (PUFAs), and by a violation of their endogenous metabolism. Desaturase enzymes, FADS1/2, are involved in the regulation of PUFA metabolism. Violation of the functioning of FADS1/2 and their genes leads to a change in the biosynthesis of PUFAs and the fatty acid composition of cell membranes. The purpose of this research was to summarize the data of modern literature on the metabolism of PUFAs and the effect of FADS genetic variants on the fatty acid composition of cell membranes in T2DM. Material and methods. The search and analysis of publications was carried out using the PubMed, MEDLINE, Web of Science databases, mainly for the last 10 years, using the search keywords: polyunsaturated fatty acids, fatty acid desaturases, desaturase genes, type 2 diabetes mellitus. Results. In the pathogenesis of T2DM and its complications, many factors play a role, including impaired PUFA metabolism. A large evidence base has been accumulated on the effect of PUFAs on cardiometabolic risk factors in T2DM. The effect of desaturase activity on the fatty acid composition of cells was identified as the most important link in the metabolism of PUFAs. Focusing on the modulation of desaturase activity and studying the polymorphism of fatty acid desaturase genes may be a useful therapeutic option in the treatment of patients with T2DM and its complications. Conclusion. A promising direction of scientific research in the treatment and prevention of T2DM and its complications is the study of genetic mechanisms associated with the metabolism of PUFAs and their metabolites.

[Cytological examination of urine in the differential diagnosis of recurrent lower urinary tract infection].

INTRODUCTION: A diagnosis and treatment of recurrent lower urinary tract infection (UTI) in women is still one of the unresolved problems of urology. The proper identification of the etiological factor determines the treatment tactics. Therefore, the most urgent issue of recurrent lower UTI is the differential diagnosis of the causative pathogens. MATERIALS AND METHODS: A cytological study of urine was performed in 151 patients with recurrent lower UTI, who, according to the results of bacteriological and PCR studies of urine, were divided into three groups, depending on the etiological factor. The group 1 (n=70) included women with recurrent lower UTI of bacterial etiology, while in group 2 (n= 70) papillomavirus etiology was found, and in group 3 (n=11) candida species were the causative pathogens. The age of the patients ranged from 20 to 45 years (32.3+/-7.8). RESULTS: In the majority of patients with recurrent lower UTI of bacterial etiology, the cytological features were represented by leukocytes, plasma, epithelial cells and bacteria in combination with actively phagocytic macrophages. In group 3, in addition to a large number of leukocytes (neutrophils) and epithelial cells, Candida mycelium was found. In group 2, signs of bacterial inflammation were minimal, while a predominance of lymphocytes, epithelial cells, and the presence of single neutrophils was seen. With papillomavirus lesions of the bladder, urothelial cell dystrophy with the presence of koilocytes developed. CONCLUSIONS: A cytological examination of urine can confirm the etiology of the recurrent lower UTI and be an evidence-based criterion in the differential diagnosis of bacterial, candidiasis, and papillomavirus infection. Total transformation of the urothelium and vacuolization of urothelial cells, as well as an excess of lymphocytes in the urine in the absence of neutrophils, are the characteristic features of viral recurrent lower UTI.

[Retrograde intrarenal surgery for kidney diseases].

INTRODUCTION: Retrograde intrarenal surgery (RIRS) is being actively implemented in the treatment of renal stones and other diseases. If necessary, RIRS can be combined with percutaneous procedures. AIM: To study the results of RIRS in patients with nephrolithiasis and various renal disorders. MATERIALS AND METHODS: A total of 106 patients who undergone RIRS were included in the study. There were 66 men (63.4%) and 40 women (36.6%). Mean age was 46.8+/-15.6 years. The indication for RIRS in 84 (79.2%) patients was renal stones. Calculus in calyceal diverticulum were diagnosed in 6 (5.7%), encrusted stents in 8 (7.7%), urinary fistulas after partial nephrectomy in 5 (4.7%), pelvis tumors in 2 (1.9%), pelvis perforation after marsupialization of parapelvic cyst in 1 (0.9%) patient, respectively. Simultaneous retro- and antegrade procedures were performed in 27 (25.5%) cases. In those with nephrolithiasis and encrusted stents, lithotripsy was done with the removal of stone fragments. Two patients underwent endoscopic resection of the pelvis tumor. In six patients, the neck of the diverticulum was incised after lithotripsy, while in five cases retrograde endoscopically controlled percutaneous treatment urinary fistulae was performed. In one case, laser fulguration of the pelvis defect with stenting was done. RESULTS: RIRS was effective in 72 (85.7%) of 84 patients with renal stones. The operation time was 70.8+/-10.2 minutes. In 12 (14.3%) cases with residual fragments, extracorporeal shock-wave lithotripsy (n=7) and repeated RIRS (n=5) were performed. The efficiency of RIRS after two sessions was 91.7%. Complications were observed in 11 (10.4%) patients. With encrusted stents, the operation time was 95.0+/-16.5 min. After laser fragmentation of encrustations in the lower part of the stent, percutaneous lithotripsy was performed with antegrade removal of its upper half. The time for RIRS in those with diverticula was 60.0+/-8.5 min, the average stone size was 8 mm (from 6 to 10 mm). In all cases lithotripsy with mucosal fulguration was successfully done. The procedures for urinary fistulae were also effective (operation time was 45.0 +/- 20.5 minutes) and there were no complications. CONCLUSION: RIRS is a safe and effective treatment for patients with nephrolithiasis and other kidney disorders. Modern flexible ureteroscopes allows to examine the collecting system and to perform lithotripsy and removal of stone fragments.

[Modern aspects of the etiological structure of chronic recurrent cystitis].

The review is devoted to the study of modern aspects of the etiological structure of chronic recurrent cystitis. The search was carried out using the databases Medline, PubMed, EMBASE. The data of the literature search indicate that chronic recurrent cystitis in women is one of the most common and urgent problems in modern urology, which affects all age categories and has a polyetiological structure. Issues of the pathogenesis of chronic recurrent cystitis, as well as methods of diagnosis and treatment, are closely related to the etiological factors of the disease. The success of chronic recurrent cystitis treatment mainly depends on the accurate identification of the pathogen.

[The role of magnesium and potassium in preventive and therapeutic nutrition].

Due to the versatility of its functions and participation in all types of metabolism, magnesium can be considered the main cation in the human organism. Equally important is the role of the main intracellular ion - potassium, which is a synergist of magnesium, especially with regard to the effect on cardiovascular system function. In Russia, there is insufficient consumption of magnesium and potassium by the population. The purpose of the work was to assess the role of magnesium and potassium in ensuring public health. Material and methods. Literature search was carried out using PubMed, Google Scholar, ResearchGate, RISC systems mainly over the past 10 years, with the exception of works of fundamental importance, according to the keywords "magnesium", "bioavailability", "potassium", "efficiency". Results. Chronic hypomagnesemia and hypokalemia are involved in the pathogenesis of various metabolic disorders (metabolic syndrome, insulin resistance and type 2 diabetes mellitus, hypertension, hyperlipidemia and sluggish inflammation). Magnesium deficiency increases the risk of cardiovascular (arrhythmia, hypertension, heart failure), neurological diseases (stroke) and depression, as well as diseases of the respiratory system (bronchial asthma, chronic obstructive pulmonary disease). Potassium deficiency is also associated with pathology of the cardiovascular system. Adequate intake of magnesium and potassium with food and/or dietary supplements prevents the development of chronic metabolic complications. Various magnesium compounds used to correct its deficiency, have different bioavailability. Conclusion. The expediency of compensating for magnesium and potassium deficiency in nutrition has been proven both for preventive purposes in a healthy person and as part of diet therapy in a patient. Enrichment of the diet with magnesium and potassium is a reliable non-drug, economical and safe prevention of chronic deficiency and associated metabolic disorders.

[Dietary correction of metabolic disorders in patients with diabetic nephropathy].

One of the ways to optimize the complex treatment of patients with diabetic nephropathy (DN) is the use of therapeutic nutrition with the inclusion of foods for special dietary use (FSDU) that correct carbohydrate and lipid metabolism disorders and have antioxidant and anti-inflammatory, properties. The aim of the research was to study the effect of a low-protein diet with the inclusion of FSDU on some clinical and biochemical parameters in patients with DN. Material and methods. 30 patients with DN and concomitant obesity of I-III stages were examined, which were divided into two groups of 15 people each. Patients of the main group received a low-protein diet for 14 days (protein 62.4 g/day, energy value 1360 kcal/day) with the inclusion of FSDU (124 kcal per portion), modified by protein, fat and carbohydrate profile (dry instant mixture), and the comparison group - a low-protein diet without the inclusion of FSDU. In blood serum, the content of glucose, glycated hemoglobin (HbA1c), total cholesterol (CH), triglycerides, cholesterol of low and high density lipoproteins (LDL, HDL), urea, creatinine, total protein, albumin, total bilirubin, alanine and aspartate aminotransferase activity, levels of potassium, phosphorus, calcium. Glomerular filtration rate was calculated and body composition indicators were studied using the bioimpedancemetry. Results. Patients of the main group showed a statistically significant decrease in fat mass by an average of 5.5% (p=0.0001) and a tendency to increase muscle mass by 1.7% (p>0.05) from the initial level. Among the patients of the comparison group, the decrease in fat mass was 4.9% (p=0.0001) against the background of a decrease in lean body mass by 2.5% (p>0.05). When comparing biochemical parameters, positive dynamics of glycemic control indicators was noted in both groups: the level of glucose in blood serum decreased (p<0.005) by 10.9 and 9.3% from the initial level in the main group and the comparison group. A more pronounced decrease in LDL and triglycerides was noted in patients of the main group (29.4 and 26.2%, respectively, p=0.005), in the comparison group the decrease in these indicators was less pronounced and statistically insignificant. Conclusion. The results obtained indicate an increase in the effectiveness of therapeutic nutrition in patients with DN and concomitant obesity when an FSDU with a modified protein, fat and carbohydrate profile is included in a low-protein diet.

[Basic principles of dietary therapy in type 2 diabetes mellitus: focus on antioxidant protection and endothelial dysfunction].

Oxidative stress and endothelial dysfunction have been identified as the most important pathogenetic pathways for the development and progression of vascular complications in type 2 diabetes (T2DM). Objective. To evaluate the effect of individual dietary components on oxidative stress and endothelial dysfunction in patients with T2DM. Material and methods. The search and analysis of publications was carried out using the PubMed, MEDLINE, Web of Science databases, mainly for the last 10 years, using the keywords "type 2 diabetes mellitus", "endothelial dysfunction", "polyphenols", "antioxidants", "diet". Results. It has been shown that despite the progress in the development of drugs for the correction of clinical and metabolic disorders in T2DM, diet therapy is an important therapeutic factor influencing the main mechanisms of development and progression of cardiovascular complications in T2DM, including hyperglycemia, dyslipidemia, arterial hypertension, subclinical inflammation, endothelial dysfunction. Properly organized and built on modern scientific principles, clinical nutrition improves glycemic control, correction of arterial hypertension, dyslipidemia and overweight/obesity. Influencing the mechanisms of development of oxidative stress, therapeutic nutrition can serve as a preventive approach to protect against the occurrence of endothelial dysfunction and subsequent complications, primarily atherosclerotic origin. Conclusion. The review presents current data on the effect of diet therapy on the main clinical and metabolic parameters in T2DM, endothelial function and oxidative stress, as the most significant factors in the development of systemic vascular complications.

[Clinical aspects of the effectiveness of metformin therapy in combination with a low-calorie diet in patients with type 2 diabetes mellitus with various variants of the TCF7L2 gene polymorphism].

The TCF7L2 gene is one of the new markers associated with the development of type 2 diabetes mellitus (DM). Evaluation of the effect of TCF7L2 gene polymorphisms on the effectiveness of hypoglycemic therapy will allow an individual approach to the choice of methods for treating type 2 DM in their carriers. The aim of the research was to study the effect of carriage of TCF7L2 gene polymorphisms on glycemic control parameters in patients with type 2 DM receiving metformin glucose-lowering therapy in combination with a low-calorie version of the standard diet. Material and methods. The study included 55 patients with type 2 DM (mean age 59.9±6.9, BMI 44.3±8.2 kg/m2) receiving metformin monotherapy at a dosage of 1500-2000 mg/day in combination with a low-calorie variant of the standard diet (1730±130 kcal/day). The frequency of occurrence of polymorphisms rs7903146/rs12255372 of the TCF7L2 gene was studied. The indicators of glycemic and metabolic control, anthropometric parameters and body composition were evaluated. Results. The frequency of occurrence of the T-allele of both single nucleotide polymorphisms rs7903146 and rs12255372 of the TCF7L2 gene among patients was 38.2%. Among carriers of the T-allele rs7903146 of the TCF7L2 gene, 72% of patients responded to therapy, showing a statistically significant decrease in the level of fasting glycemia by an average of 16.2±1.6% from the baseline, while among carriers of the CC genotype - 10.5±1.5% (p=0.017). There were no statistically significant changes in glycemic control indicators on hypoglycemic therapy during 7 months of observation, both in the group of T allele and CC genotype carriers. Conclusionss. An improvement in glycemic control was established in patients with type 2 DM among carriers of the T allele rs7903146 of the TCF7L2 gene during metformin therapy in combination with a low-calorie standard diet. The study of TCF7L2 gene polymorphism in combination with indicators of glucose metabolism makes it possible to predict the effectiveness of hypoglycemic therapy with great accuracy.

[Vitamin supply of patients with type 2 diabetes mellitus complicated by nephropathy].

Insufficient vitamin content in the diet is a risk factor for the development of various diseases and their progression, and drug therapy can also contribute to the development of a deficiency of these micronutrients. Data on vitamin sufficiency of patients with type 2 diabetes mellitus (T2DM) and diabetic nephropathy (DN) are needed to develop measures to improve it. The aim of the research was to compare vitamin status of patients with T2DM without DN and those with T2DM complicated by nephropathy by assessing vitamin blood level and urinary excretion. Material and methods. In a single-stage research, 57 patients with T2DM and concomitant obesity (14 men, 43 women aged 42-75 years) have been examined. The 1st group included 26 patients with T2DM (7 men and 19 women, BMI 41.5±1.7 kg/m2) with glycated hemoglobin (HbA1c) - 8.0±1.4%, blood serum glucose level 8.1±0.6 mmol/l, glomerular filtration rate (GFR) - 86.7±3.0 ml/min per 1.73 m2, microalbuminuria - 18.0±2.0 mg/day. The 2nd group included 31 patients with T2DM complicated by DN (7 men and 24 women, BMI 42.5±1.3 kg/m2), with an HbA1c level of 6.4±0.2%, blood serum glucose level 6.8±0.3 mmol/l, GFR - 62.8±2.7 ml/min per 1.73 m2, microalbuminuria - 59.5±22.5 mg/day. The determination of vitamins С (ascorbic acid), A (retinol), E (α- and γ-tocopherols), D [25(OH)D], B2 (riboflavin) and ß-carotene in blood serum and vitamins C (ascorbic acid), B1 (thiamine), B2 (riboflavin) and B6 (4-pyridoxic acid) in the morning portion of urine collected on an empty stomach within 40-120 min was carried out. The vitamin status was assessed based on the concentration of vitamins in blood serum and urinary excretion relative to the lower limit of the norm, as well as using the criteria for the optimal supply and 2 molar ratios. Results. Compared to patients with T2DM without nephropathy, patients with DN were better provided with vitamins B2, A and ß-carotene: vitamin B2 deficiency was found 3.2 fold less often (in 9.7%), ß-carotene - 1.8 fold less often (in 35.5%), nonoptimal retinol level occurred twice less often (in 41.9%). At the same time, serum α-tocopherol level below the optimal level was found in 67.7% of individuals versus 50% among patients with T2DM without nephropathy, with a significantly reduced urinary excretion of vitamins B1 and B2. With the exception of one man, the rest of the DN patients had a deficiency or lack of vitamin D. The characteristic features of the vitamin status of patients in both groups were the complete absence of individuals who were simultaneously optimally provided with all the studied vitamins and ß-carotene (when assessing the vitamin status using both the absolute serum vitamer levels and 2 additional molar ratios), and a high frequency of detection of several simultaneously non-optimal vitamin status indicators. A negative correlation was found between blood serum level of ß-carotene and glycemia (ρ=-0.359, p=0.006), as well as GFR (ρ=-0.289, р=0.029) and positive with high-density lipoprotein cholesterol (ρ=0.423, р=0.001), that indicated the need to increase this antioxidant blood level in patients with T2DM. The presence of a negative correlation between the concentration ratio of vitamins C and E and glucosuria (ρ=-0.288, p=0.033) and postprandial glycemia (ρ=-0.313, p=0.031) indicated the need to maintain it at an optimal level. Conclusion. For patients with T2DM and concomitant obesity, vitamin D and ß-carotene turned out to be the most problematic, since their reduced levels are detected more often than other vitamins. In addition to the optimal blood level of vitamins C and E, it is extremely important for them to maintain the blood molar ratio of ascorbic acid and α-tocopherol at an optimal level. The purposefully development of specialized vitamin complexes containing effective doses is necessary for patients with DN.

[Robot-assisted partial nephrectomy with selective ischemia].

INTRODUCTION: Clamping of the renal artery during partial nephrectomy leads to renal ischemia and a deterioration of its function. An alternative to total ischemia is to isolate and clamp the segmental branch of the renal artery supplying the tumor. AIM: To evaluate the efficiency of robot-assisted partial nephrectomy (RAPN) with selective renal ischemia. MATERIAL AND METHODS: A total of 42 patients with renal tumors of stage T1a (n=34) and T1b (n=8) undergoing RAPN were included in the study. There were 25 men (59.5%) and 17 women. The mean age was 56.0 +/- 7.5 years, the tumor size ranged from 2.5 to 6.8 cm. Patients with a solitary kidney, multiple tumors, and those who underwent partial nephrectomy with clamping of the renal artery were excluded from the study. CT angiography with 3D reconstruction were used to detect the segmental branches of the renal artery, that supply the tumor. To determine the complexity of renal tumors, the RENAL nephrometric scale was used. Complications were assessed according to the Clavien-Dindo classification. In addition, mean operative time and volume of blood loss, warm ischemia time, pre- and postoperative renal function, and oncological outcomes were analyzed. The RAPN was considered successful if it was performed with selective clamping of the artery. RESULTS: RAPN with selective ischemia was effective in 38 (90.5%) of 42 patients. In 4 (9.5%) cases with tumors of T1b stage and high RENAL scores (> 8), total ischemia was eventually used in order to control bleeding. According to CT angiography, these patients had more or equal 2 branches of renal artery, supplying the tumor. Mean operation time, volume of blood loss and warm ischemia time were 130.0+/-35 min, 185.0+/-80.0 ml and 14.0+/-3.2 min, respectively. In one case, there was an injury to the renal vein, which was sutured. Postoperative complications were observed in 5 (12.0%) patients. The glomerular filtration rate pre- and postoperatively was 76.5 and 72.0 ml/min/1.73 m2, and its decrease 1 month after RAPN was not significant (p>0.05). CONCLUSION: Preoperative evaluation of renal arterial anatomy allows to detect the segmental branch that supplies the tumor. By its clamping, it is possible to perform efficient and safe robot-assisted partial nephrectomy without total ischemia.

[Role of calcium in health and reducing the risk of non-communicable diseases].

Calcium as an essential mineral is involved in many processes in the body, being the main one in the mineral matrix of bones and teeth. It is necessary for conducting nerve impulses, blood coagulation, muscle contraction, regulation of the transport of various ions through the cell membrane, glycogenolysis and gluconeogenesis, and the activity of many enzymes. In Russia, insufficient calcium intake is noted. The purpose of the work was to assess the role of calcium of various origins in meeting the needs and health of the population. Material and methods. Literature search was carried out using the PubMed, Google Scholar, ResearchGate, RSCI, CyberLeninka systems, mainly for the last 10 years, with the exception of research of fundamental importance, using the keywords "calcium", "milk", "bioavailability". Results. Dairy consumption is associated with an overall reduction in the risk of noncommunicable diseases, including cardiovascular disease, type 2 diabetes mellitus, and some types of cancer. Calcium in natural milk and dairy products, as well as calcium of milk origin, has a higher bioavailability and absorption than from other sources of synthetic or natural mineral origin. The recommendation to reduce dairy consumption may be counterproductive to health and therefore may increase health care costs. Conclusion. Milk and dairy products are the optimal source of calcium. The high bioavailability of calcium of milk origin justifies the expediency of its preferred use in dietary nutrition, both as part of therapeutic diets in hospitals and nutrition in social service institutions, and in outpatient practice. Additional studies, including randomized controlled trials, may be needed to explore in more detail the optimal consumption of milk and dairy products, as well as the use of calcium-containing pharmaceutical products and dietary supplements.

Species identification of ruminant milk by genotyping of the κ-casein gene.

The development of molecular genetic and bioinformatic systems for identifying the species of milk and the raw material composition of dairy products is of great scientific and practical importance with the purpose of introducing developments in the system for controlling the turnover of falsified products. The aim of the research is to develop a method of PCR-RFLP analysis for species identification of milk and dairy products from agricultural ruminant animals by the κ-casein gene (CSN3) with the possibility of qualitative and relative quantitative assessment of species-specific DNA of the tested biomaterial. The objects of research were samples of raw milk and milk powder, pasteurized cream, and hard and semi-hard cheeses. The developed method of species identification of milk and dairy products includes sample preparation of the studied samples, nucleic acid extraction, combined PCR-RFLP technique, detection of obtained results by the method of horizontal electrophoresis in agarose gel and their analysis, including using the developed mathematical algorithms and software. The synergistic effect established in combined operation of 2 restriction enzymes ensured their application in a mix with increased performance in an ergonomic way in the context of DNA authentication of cow, goat, and sheep milk and dairy products based on them. The specificity and sensitivity of the proposed method is potentially suitable for implementing the development of a system to control the turnover of falsified and counterfeit goods.

[Diet therapy program for weight loss and assessment of its effectiveness in overweight and obese persons].

The basic method of obesity treatment is diet therapy aimed at long-term maintenance of negative energy balance by restricting the caloric intake of the diet. The aim - to evaluate the effectiveness of the diet therapy program for weight loss with the use of a complex of amino acids and glucomannan. Material and methods. To conduct the study, in accordance with the inclusion and exclusion criteria, a sample of 33 overweight or obese people was formed, of which 30 people (16 men and 14 women) took part in the study. The age of the persons included in the study ranged from 20 to 59 years (average 41.0±1.73 years), body mass index- from 26.4 to 45.5 kg/m2 (average 35.5±0.8 kg/m2), waist circumference as a criterion for abdominal obesity - 110.4±2.4 cm. Participants three times a day (7.00-9.00, 12.00-14.00 and 16.00-18.00) received within 14 days 15 g of powder dissolved in 200 ml of water containing whey protein concentrate, potassium (618 mg in the form of citrate), glucomannan, taurine (290 mg), zinc (2.5 mg in the form of sulfate), vitamins B6 (1.4 mg) and B12 (3 mcg), and 2 capsules containing L-isoleucine (340 mg), L-ornithine-alpha-ketoglutarate (290 mg), L-citrulline-DL-malate (290 mg) and L-tryptophan (80 mg). In the evening, the main meal was dinner, which included a protein dish with vegetables and herbs. The energy value of the evening meal was 400 kcal (1675 kJ), the proportion of protein, fat and carbohydrates was 40, 30 and 30%, respectively, of the calorie content of the evening meal. Results. It was shown that the use of a 14-day course of the diet therapy program to reduce body weight was accompanied by a statistically significant decrease in body weight on average 6.3% of the initial level, an improvement in body composition indicators (a rather pronounced decrease in body fat mass by 9.2%, p<0.001, with a smaller decrease in lean body mass and skeletal muscle mass, respectively by 3.9 and 4.1%, p<0.001) and metabolic blood parameters (a decrease in serum glucose concentration, total cholesterol, triglycerides, total bilirubin and gamma-glutamyltransferase by 12.5, 15.0, 35.0, 22.8 and 34.6% respectively). Conclusion. Application of the diet therapy program for weight loss «Non-invasive liposuction¼ allows us to recommend its use in obese patients in order to increase the effectiveness of therapeutic and prophylactic measures in correcting excess body weight, improving the parameters of carbohydrate and lipid metabolism, and the functional state of the biliary system.

[Optimization of dietary support for patients with diabetic nephropathy].

The article presents modern approaches to dietary support for patients with diabetic nephropathy (DN). The possibility of using the developed specialized products (SP), modified by protein, fat and carbohydrate composition, containing food ingredients with hypoglycemic, hypolipidemic and antioxidant effects is presented. The aim - development of a formulation and technology for producing SP with modified chemical composition and energy value, intended for inclusion in a low-protein diet for patients with DN. Material and methods. When developing the SP formulation, soy protein isolate, monoand polyunsaturated fatty acids, soluble dietary fiber, fat- and water-soluble vitamins, tracelements, curcumin, taurine, flavoring and aromatic additives were used. Results. The chemical composition and organoleptic characteristics of two SPs have been determined. A technology has been developed for producing SP in the form of instant drinks, which consists in stage-by-stage mixing of prescription ingredients, which ensures uniform distribution of minor biologically active substances. The conducted studies of the organoleptic parameters of the developed SPs showed an average overall score of 4.8 and 4.9 on a 5-point scale. Conclusion. Taking into account the technological and organoleptic compatibility of the selected ingredients, formulations and technologies for preparing SP have been developed, which are powdery multicomponent mixtures for preparing drinks for use in the complex therapy of patients with DN.

The Genus Lagochilus (Lamiaceae): A Review of Its Diversity, Ethnobotany, Phytochemistry, and Pharmacology.

The genus Lagochilus (Lamiaceae) is native to Central, South-Central, and Eastern Asia. It comprises 44 species, which have been commonly used as herbal medicines for the treatments of various ailments for thousands of years, especially in Asian countries. This review aims to summarize the chemical constituents and pharmacological activities of species from the genus Lagochilus to unveil opportunities for future research. In addition, we provide some information about their traditional uses, botany, and diversity. More than 150 secondary metabolites have been reported from Lagochilus, including diterpenes, flavonoids, phenolic compounds, triterpenoids, iridoid glycosides, lignans, steroids, alkaloids, polysaccharides, volatile, non-volatile and aromatic compounds, lipids, carbohydrates, minerals, vitamins, and other secondary metabolites. In vitro and in vivo pharmacological studies on the crude extracts, fractions, and isolated compounds from Lagochilus species showed hemostatic, antibacterial, anti-inflammatory, anti-allergic, cytotoxic, enzyme inhibitory, antispasmodic, hypotensive, sedative, psychoactive, and other activities.

[Obesity as a global challenge of the 21st century: clinical medical nutrition, prevention and therapy].

The article presents modern data on the prevalence of overweight and obesity, provides updated information on personalized programs for managing body weight, individual recommendations for a healthy diet, adequate physical activity and long-term lifestyle changes. It is shown that dietary therapy is the basic treatment method in weight loss programs and is aimed at long-term maintenance of a negative energy balance in the patient's organism by limiting the calorie intake. A significant place in the article is devoted to the use of diets modified by calorie value and macronutrient content which are recommended for obese patients. A strategy for the prevention of obesity and its associated diseases is presented.

[Effect of specialized product with modified carbohydrate profile on clinical and metabolic parameters in patients with type 2 diabetes].

The prevalence of type 2 diabetes mellitus (DM2) determines the need to develop evidence-based methods for preventing this disease, including personalized approaches to the dietary correction of metabolic disorders in DM2, including the use of specialized foods. Aim. To evaluate the effect of a low-calorie diet with the inclusion of a specialized product (SP) with a modified carbohydrate profile (dry instant mixture) on the glycemic and metabolic control indicators in patients with DM2. Material and methods. The study included 30 patients with DM2 with concomitant obesity, grade I-III, who were on oral sugar-lowering therapy. Within 2 weeks, patients of the main group received a low- calorie diet (1550 kcal/day) with the inclusion of SP with a modified carbohydrate profile (based on maltitol and with sweeteners) with strawberry flavor in the form of a drink (30 g dry mix per 150 ml of water) for the second breakfast instead of a carbohydrate-containing dish, which provided the intake of 7.8 g of protein, 6.1 g of fat, 1.8 g of carbohydrates, 5.6 g of maltitol. The comparison group received a low-calorie diet (1550 kcal/day) without the inclusion of SP. In all patients, on the background of complex therapy, anthropometric indices, body composition, parameters of carbohydrate, lipid and protein metabolism, liver function, and lipid peroxidation were assessed. Results and discussion. It was shown that SP inclusion into the hypocaloric diet was accompanied by a significant decrease in the level of basal glycemia by an average of 17.4% from the initial level (p<0.05), serum total cholesterol (TC) and low density lipoproteins cholesterol (LDL-C) on average by 26.9 and 36.2% of baseline, respectively, p<0.05, while in patients of the comparison group, the change in fasting blood glucose was not statistically significant (a decrease of 8.1%), and the decrease in TC and LDL-C was on average 22.1 and 21.0%, respectively (p<0.05). At the same time, against the background of complex therapy, positive dynamic in lipid peroxidation in the main group was observed: the level of blood serum malondialdehyde decreased on average by 25.3% from the baseline values (p<0.05). Conclusion. The inclusion of SP with a modified carbohydrate profile in a low-calorie diet is accompanied by an improvement in glycemic control, lipid metabolism and antioxidant status of patients with DM2, helping to reduce the risk of developing systemic vascular complications in this disease.

[Treatment of uncomplicated vertebral compression fractures]. / Lechenie neoslozhnennykh kompressionnykh perelomov pozvonochnika.

According to statistical studies in different countries, the annual incidence of spine and spinal cord injuries is 15-50 cases per 1 million people. In Russia, the incidence of this condition is 5% of the total number of all nonpenetrating traumatic injuries (Neurosurgery: Guidelines for Physicians, ed. by Prof. ON Dreval', 2013). According to the WHO reports, approximately 500,000 people annually experience spine injuries worldwide. Acute spine injuries make up 23.7% of all spinal traumas and include contusions (2.67%), injuries to the capsular ligamentous apparatus (3.88%), fractures and dislocations (7.63%), and muscle injury (9.52%). In males, the risk of experiencing a spine injury is the highest at the age of 20-29 and above 70 years, while in women this risk is the highest at an age of 15-19 and above 60 years. According to the studies, this risk is characterized by an at least 2:1 ratio between adult males and females. OBJECTIVE: To compare the outcomes of surgical (vertebroplasty) and conservative treatment in management of pain syndrome in patients with uncomplicated spine injury. MATERIAL AND METHODS: The study involved 60 patients with stable uncomplicated compression fractures of vertebral bodies in the thoracic and lumbosacral spine. These patients were subdivided into two groups. Group 1 consisted of 30 patients who had undergone unilateral transpedicular percutaneous vertebroplasty; Group 2 involved 30 patients who had undergone a course of conservative treatment. The medical records and the catamnestic follow-up data of patients treated at the Neurosurgery Department of the Research Clinical Center of JSC Russian Railways in 2015-2017 were analyzed for this purpose. RESULTS: No statistically significant differences in sex, age, and level of injury were revealed between the study groups. A comparative analysis of treatment outcomes demonstrated that pain intensity assessed using the VAS scale was significantly reduced after one-year follow-up in both groups as compared to the baseline. A statistically significant decrease in pain intensity in the group of patients who had undergone vertebroplasty was observed as early as one month after the injury. No significant intergroup differences were observed in the long-term follow-up period (3 and 6 months) for this parameter. In five out of 60 patients, examination 12 months after the injury revealed that vertebral body height decreased by up to 10%. No statistically significant correlation with the treatment method was observed. CONCLUSION: Vertebroplasty provides a statistically better pain relief during the first month after spine injury as compared to conservative treatment. For patients, this means earlier activization and quicker return to daily routines and work.

Vitamins in diet of patients with metabolic syndrome.

Aim - analysis of data on the role of vitamin and carotenoid deficiency in the development of metabolic syndrome (MS), the consumption of individual vitamins and vitamin supplements, as well as estimation of the effectiveness of the use of vitamins in patients with MS. A review of the existing literature has been carried out in the databases of RINC, CyberLeninka, Google Scholar, Pubmed. The lack of vitamins is a risk factor for MS and its components. The diet of people with MS is characterized by excessive caloric content and at the same time contains an inadequate amount of most vitamins. The most frequent in patients with MS is the deficiency (blood level) of vitamin D, E, B vitamins, carotenoids. Among patients with MS, individuals with a reduced concentration of vitamins in the blood plasma are often found. In turn, among those with a deficiency of vitamins, MS is more often found. Low concentrations of 25(OH)D in the serum are associated with an increased risk of MS. An inverse association between the concentration of the hormonal form of vitamin 1.25(OH)2D3 in the serum and the development of MC has been found. In patients with MS, the α-tocopherol concentration associated with lipids is lower than in healthy individuals, and γ-tocopherol, on the contrary, is higher. Taking high doses of one of the vitamin E homologues shifts the balance between tocopherols in the blood plasma. Sufficient supply of the body with all vitamins involved in the formation of metabolically active forms of vitamins (D, B6, PP) is a necessary condition for the exercise of these biological functions by these vitamins. The lack of vitamins is a risk factor for MS and its components. Enrichment of the diet of patients with MS should be considered as a necessary favorable background for its treatment. Since the body has functional connections between vitamins, it is advisable to use not individual vitamins, but their complexes.