Features Of Carbohydrate Metabolism Research Articles

Regional and ethnic factors of obesity and diabetes mellitus in women of re-productive age in the Pribaikal region

Introduction. Overweight is currently one of the leading global medical problems. Overweight and obesity contribute significantly to the development of diseases such as diabetes, cardiovascular disorder and can also cause premature death. Obesity has a negative impact on reproductive function; almost a quarter of women of childbearing age are overweight and about a third of them are obese.Aim. To study the characteristics of carbohydrate metabolism, hormonal indicators, and clinical-metabolic profiles, as well as to assess the potential risk of developing diabetes mellitus in women of fertile age with overweight and obesity residing in the Baikal region.Materials and methods. The study involved 60 overweight and obese women of reproductive age in the Pribaikalye region, including 33 women of Russian nationality (group 1) and 27 women of Buryat nationality (group 2). Anthropo-metric, sociodemographic and behavioural criteria were analysed, as well as questionnaires using the FINDRISC Scale. General clinical analyses of blood and urine were performed, lipid profile parameters, glucose, insulin, creatinine, transaminases, estradiol, thyroid hormone, leptin levels in blood plasma were studied. In addition, an oral glucose tolerance test was performed and the insulin resistance index (HOMA-IR) was calculated.Results. In the group of Buryat women with lower body weight as compared to Russians, higher levels of leptin, HOMA- IR index, and larger waist circumference are observed. In Buryat women, low physical activity makes a significant contribution to the development of overweight and obesity, while for Russian women, excessive caloric intake is more important. In accordance with the results of the FINDRISC scale survey, the greatest contribution to the potential development of diabetes mellitus in the Russian group is body mass index (weight), and in the Buryat group, in addition to these indicators, waist circumference and reduced physical activity.Conclusions. The results of the study will be of great help in the development of pro-grammes for the prevention of diabetes and obesity, taking into account regional and ethnic differences among the population.

Comparative analysis of the course of the perioperative period in patients with diabetes during knee and hip arthroplasties

Background. Hip and knee arthroplasty (HKA) are common surgical interventions. In more than 20 % of patients undergoing HKA, diabetes mellitus is detected, which is one of the risk factors for the development of periprosthetic infection and the occurrence of complications in the perioperative period. The purpose: to determine the features of the course of the perioperative period in patients with diabetes during knee and hip replacement. Materials and methods. A retrospective analysis was performed of the inpatient charts of 50 people who underwent HKA against the background of concomitant diabetes. All participants were divided into two groups: 1) patients with hip arthroplasty; 2) patients with knee arthroplasty. The course of the intraoperative and postoperative periods and the development of complications were analyzed. Results. All patients were aged from 38 to 86 years, had increased weight (body mass index of 26.0–29.4 kg/m2). Among the complications, hypertension was most common (64.0 and 68.0 % in the groups, respectively), nausea and vomiting (32.0 and 28.0 %, respectively), disturbances in the rhythm and depth of breathing (16.0 and 20.0 % respectively) were often observed. The need for analgesia in the postoperative period was registered in 96.0 and 100.0 % of cases, which indicates its insufficient quality. Other clinical and anamnestic indicators, the course of the perioperative period and the development of complications were similar in patients undergoing both hip and knee replacements (p > 0.05). Conclusions. Clinical and anamnestic data, the spectrum of existing concomitant pathology, characteristics of carbohydrate metabolism and its disorders, features of the course of the perioperative period and detected complications were of the same type in patients regardless of the location of the intervention. There was no significant difference in the studied parameters (p > 0.05). Identified complications and insufficient effectiveness of postoperative analgesia dictates the need to find optimal methods of perioperative analgesia during HKA.

Genomic characterization and probiotic potential assessment of an exopolysaccharide-producing strain Pediococcus pentosaceus LL-07 isolated from fermented meat

BackgroundThe genomic information available for Pediococcus pentosaceus is primarily derived from fermented fruits and vegetables, with less information available from fermented meat. P. pentosaceus LL-07, a strain isolated from fermented meat, has the capability of producing exopolysaccharides (EPS). To assess the probiotic attributes of P. pentosaceus LL-07, we conducted whole-genome sequencing (WGS) using the PacBio SequelIIe and Illumina MiSeq platforms, followed by in vitro experiments to explore its probiotic potential.ResultsThe genome size of P. pentosaceus LL-07 is 1,782,685 bp, comprising a circular chromosome and a circular plasmid. Our investigation revealed the absence of a CRISPR/Cas system. Sugar fermentation experiments demonstrated the characteristics of carbohydrate metabolism. P. pentosaceus LL-07 contains an EPS synthesis gene cluster consisting of 13 genes, which is different from the currently known gene cluster structure. NO genes associated with hemolysis or toxin synthesis were detected. Additionally, eighty-six genes related to antibiotic resistance were identified but not present in the prophage, transposon or plasmid. In vitro experiments demonstrated that P. pentosaceus LL-07 was comparable to the reference strain P. pentosaceus ATCC25745 in terms of tolerance to artificial digestive juice and bile, autoaggregation and antioxidation, and provided corresponding genomic evidence.ConclusionThis study confirmed the safety and probiotic properties of P. pentosaceus LL-07 via complete genome and phenotype analysis, supporting its characterization as a potential probiotic candidate.

The course of the early recovery period after total arthroplasty in patients with diabetes

More than 20% of patients undergoing total joint arthroplasty (TJA) have diabetes mellitus (DM), which is one of the risk factors for complications in the postoperative period. The aim: to determine the peculiarities of the course of the postoperative period in patients with diabetes after TJA, in particular, after hip and knee arthroplasty (HKA). Materials and methods. A retrospective analysis of the inpatient charts of 50 patients who underwent HKA operations against the background of concomitant DM was performed. All patients were divided into two groups: 1) patients with hip arthroplasty, 2) patients with knee arthroplasty. The course of the intraoperative and postoperative (p/o) periods and the development of complications were analyzed. The results. All patients were aged from 38 to 86 years, had increased weight (BMI — 26.0-29.42 kg/m). Among the complications, arterial hypertension was most often observed (in groups 64.0% and 68.0%, respectively), nausea and vomiting were often observed (32.0% and 28.0%, respectively), disturbances in the rhythm and depth of breathing (16.0% and 20.0% respectively). The need for analgesia in the p/o period was 96.0% and 100.0% of patients, which indicates insufficient quality of analgesia. Other clinical and anamnestic indicators, the course of the perioperative period and the development of complications were similar in patients undergoing both hip and knee replacement surgeries (p>0.05). Conclusions. Clinical and anamnestic data, the spectrum of existing concomitant pathology, characteristics of carbohydrate metabolism and its disorders, features of the course of the perioperative period and detected complications were of the same type in patients regardless of the location of the intervention. There was no significant difference in the studied parameters (p>0.05). Identified complications and insufficient effectiveness of p/o analgesia dictates the need to find optimal methods of perioperative analgesia during HKA operations.

Study of the influence of GLP-1 receptor agonists on the metabolic activity of the intestinal microbiota in patients with type 2 DM

The aim: to investigate the peculiarities of the metabolic activity of the intestinal microbiota in patients with type 2 diabetes under the influence of glucagon-like peptide-1 receptor agonist therapy. Materials and methods: 21 patients with type 2 diabetes mellitus were included in the study, the average age was 57.2±8.53 years (M±SD), the HbA1c level was 8.29±0.88 % (M±SD). Patients were prescribed raGLP-1 at the maximum tolerated dose for 6 months. Before and after the course of treatment, indicators of body composition were determined by the bioelectrical impedance method (TANITA BC-545N analyzer, Japan), characteristics of carbohydrate metabolism and the lipid spectrum of blood serum, as well as the concentration of GLP-1, trimethylamine-N-oxide (TMAO) by the immunoenzymatic method, of short-chain fatty acids (SCFA) by the method of chromatographic research. Results. After 6 months of therapy with liraglutide against the background of a statistically significant decrease in fasting blood glucose and HbA1c levels (p<0.05), a decrease in body mass index and waist circumference (p<0.05), a decrease in the content of visceral (p<0.05 ) and total fat (p<0.05) in patients with type 2 diabetes, there was a decrease in the concentration of TMAO in blood serum (p<0.05) and an increase in the concentration of SCFA: acetic, propionic (p<0.05) in the coprofiltrate and a tendency to increase in the level of butyric acids. Data analysis also established an increase in the concentration of endogenous GLP-1 in the blood (p<0.05). Conclusions. The detected changes in microbial metabolites may indicate a positive effect of raGLP-1 on the composition of the intestinal microbiota and its metabolic activity in patients with T2DM, which in turn contributes to the improvement of endogenous secretion of incretins

Correlated interdependences of characteristics of carbohydrate metabolism and lipid profile and batokines levels in patients with coronary heart disease and obesity

Research of comorbid coronary heart disease (CHD) and obesity in recent years often rely on the study of inflammatory mediators, among which the first and foremost are batokines, in particular on fibroblast growth factor (FGF-21) and vascular endothelial growth factor A (VEGFa). The aim of our study was to determine the correlational interdependencies of indicators of carbohydrate metabolism and lipid profile and levels of batokines in the comorbidity of CHD and obesity. 70 people aged from 25 to 85 were examined with CHD on the background of obesity. The average age was (63.6±8.8) years. The research do not violate the principles of bioethics, which is confirmed by the conclusion of the Bioethics Committee of the Kharkiv National Medical University. All patients who participated in the study signed an informed voluntary consent. Based on the results of research probable direct strong correlations of total cholesterol (TC) with low-density lipoprotein (LDL) were determined (ρ=0.889; p=0.000); triglycerides (TG) with very low-density lipoprotein (VLDL) (ρ=0.810; p=0.000). The average strength of correlation was determined: glycosylated hemoglobin (HbA1c) with vascular endothelial growth factor A (VEGFA) (ρ=0.374; p=0.001); TC and LDL and AI (respectively ρ=0.615; p=0.000, and ρ=0.648; p=0.000); VLDL with atherogenic index (AI) (ρ=0.367; p=0.002). Probable direct weak correlations of blood glucose levels with TG (ρ=0.253; p=0.034) and VLDL (ρ=0.277; p=0.020) and VEGFA (ρ=0.225; p=0.061) were found; TG and VLDL with VEGFA (ρ=0.256; p=0.032 and ρ = 0.273; p = 0.022, respectively). Inverse interdependencies were recorded: medium strength – high-density lipoprotein (HDL) and AI (ρ=-0.583; p=0.000) and weak – hemoglobin levels with HDL (ρ=-0.251; p=0.036); HbA1c with LDL (ρ=-0.241; p=0.044); HDL with VLDL (ρ=-0.293; p=0.014). Keywords: comorbidity of coronary heart disease and obesity, batokines, FGF21, VEGFA.

Characteristics of carbohydrate metabolism and insulin resistance in patients with chronic pyelonephritis depending on the phenotype of latent autoimmune diabetes in adults

Searchable abstracts of presentations at key conferences in endocrinology ISSN 1470-3947 (print) | ISSN 1479-6848 (online)

The features of carbohydrate metabolism in children with cystic fi brosis: a 30-year-long history

Th e article presents a review on a cystic fibrosis-r elated diabetes, a severe complication of cystic fi brosis in children, which has acquired increasing importance and revealed to contribute in prognosis of the disease in recent years. Which include resent and historical epidemiology, pathophysiology, diagnostic methods, features of the course and the latest aspects of the targeted therapy effect on endocrine function of the pancreas. The authors presented a retrospective analysis of the carbohydrate metabolism condition in two groups of children with cystic fi brosis investigated in 1993 and 2021. These groups diff ered signifi cantly in baseline enzyme therapy, diet and nutritional support (the intake of supplementary medical nutrition). The study confi rmed that present-day patients have a lower percentage of impaired carbohydrate metabolism on the background of complete therapy. The authors proved that carbohydrate metabolism disorders occur earlier in nowadays children with cystic fi brosis, at the age before 10 years. This fi nding provides strong evidence that prediabetes is a period they should be diagnosed. These changes can be identifi ed only by a complete examination of the glycemic profi le of the patient, rather than, as previously thought, an oral glucose tolerance test. The study identifi ed that the indicator of continuous glucose monitoring — 6.42 mmol/l could be a predictor of the possible transition of prediabetic stage into cystic fi brosis related diabetes. The obtained results are confi rmed by the clinical case given by the authors.

Characteristics of carbohydrate metabolism in the surgical treatment of morbid obesity and type 2 diabetes mellitus using various modifications of biliopancreatic diversion with duodenal switch

BACKGROUND: Biliopancreatic diversion (BPD), and its modifications, is the most effective surgical bariatric treatment of morbid obesity and associated metabolic disturbances. However, at present comparative studies of the dynamics of carbohydrate metabolism after various modifications of the BPD are lacking.AIM: comparative assessment for the effectiveness of biliopancreatic diversion with duodenal switch (BPD-DS) in the HessMarceau and single-anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S) modifications for correcting carbohydrate metabolism disorders and achieving remission of Diabetes mellitus type 2 (DM2) within a period of up to five years after both operations.MATERIALS AND METHODS: within the framework of a prospective study, 200 patients with morbid obesity were operated on using the BPD-DS (group 1, n = 100) and SADI (group 2, n = 100) methods, the dynamics of clinical and laboratory parameters was analyzed in groups depending on the presence, or absence, of DM2, with an emphasis on the analysis of indicators of carbohydrate metabolism. DM2 was diagnosed in 35 (35.0%) patients in group 1 (BPD - DS) and 45 (45.0%) in group 2 (SADI). All patients underwent a standard set of clinical, laboratory and instrumental examination methods before, immediately after and at 3, 6, 9, 12, 18, 24, 36, 48 and 60 months after the operation.RESULTS: 5 years after the operation, complete remission of DM2 was achieved in 38 (84.4%) and 32 (91.4%) patients from the SADI and BPD-DS groups, respectively, and 7 (15.6%) and 3 (8.6 %) of patients achieved partial remission. The level of C-peptide, which also decreased after both modifications of BPS, was higher in patients after BPS in the SADI modification, both in patients with DM2 36 months (p<0.05), and in patients without DM2 at 3, 12 and 24 months after surgery (p<0.05).CONCLUSION: The frequency of achieving stable remission of DM2 is comparable in both groups. The carbohydrate profile of patients after SADI is characterized by higher levels of glucose and C-peptide compared to BPD-DS at different periods of follow-up over five years.

Roles of intestinal Parabacteroides in human health and diseases.

The stability of gut microbiota is essential for the host's health. Parabacteroides spp., core members of the human gut microbiota, have an average abundance of 1.27% in humans of 12 populations. Parabacteroides have recently been reported to have a close relationship with host health (e.g. metabolic syndrome, inflammatory bowel disease and obesity). Parabacteroides have the physiological characteristics of carbohydrate metabolism and secreting short chain fatty acids. However, antimicrobial resistance of Parabacteroides to antibiotics (such as clindamycin, moxifloxacin and cefoxitin) should not be ignored. In this review, we primarily focus on Parabacteroides distasonis, Parabacteroides goldsteinii, Parabacteroides johnsonii and Parabacteroides merdae and discuss their relationships with host disease, diet and the prevention or induction of diseases. Pa. distasonis and Pa. goldsteinii may be viewed as potential next generation probiotic candidates due to their protective effects on inflammation and obesity in mice. We also discuss the potential therapeutic application of Parabacteroides spp. in maintaining host-intestine homeostasis.

Features of carbohydrate metabolism in asthma patients with obesity

Asthma (As) and metabolic disturbances are widespread and socially significant states, obesity (Ob) being also one of them. The comorbidity of As and Ob both affects physiological mechanisms of bronchial obstruction syndrome, the course and prognosis of these two diseases and significantly complicates their treatment. A combination of changes in ventilation and a complex architectonics of the bronchi may contribute to worsening control over As. The performed study deals with the problem of early diagnosis and progression of the course in patients with As and Ob comorbidity. The study involved 62 patients with As. Of them, there were 24 cases with the normal body mass (Group I) and 38 cases with As+Ob (Group II). Along with evaluation of respiratory function values and anthropometric examination, all the patients underwent controlling of carbohydrate metabolism. It was found out that As combined with Ob were accompanied by a cascade of metabolic disorders: hyperinsulinemia, insulin resistance, and higher levels of HbA1с and fasting glucose versus the control group (р<0.05). According to correlation analysis data, in Group II negative correlations between values of HOMA-IR and 40≤FEV1<50% (r= -0.53; р<0.05), HOMA-IR and 50%≤FEV1<60% (r= -0.49; р<0.05), insulin level and 40≤FEV1<50% (r= -0.42; р<0.05) as well as a positive correlation between HPMA-IR value and BMI (r=0.39; р<0.05) were revealed. Patients with As, degree 1 Ob and a disorder of FEV1>60% revealed hyperinsulinemia and an increased level of insulin resistance index; this fact can be regarded as a prognostic criterion for an improved diagnosis, prognostication of unfavorable consequences and optimization of treatment approaches. In order to detect carbohydrate metabolic disturbances in patients with As+Ob it is not enough to determine levels of glucose and glycated hemoglobin. The necessity of studying insulin resistance and insulin level for systematization and determination of development of concomitant metabolic disturbances in patients to whom iGCS are prescribed is proved.

Enterococcus alishanensis sp. nov., a novel lactic acid bacterium isolated from fresh coffee beans.

A coccus-shaped organism, designated ALS3T, was isolated from fresh coffee cherries collected at a farm located in the Ali Mountain region of Taiwan. Sequence analysis of its 16S rRNA gene indicated that strain ALS3T belongs to the genus Enterococcus and has more than 98.5 % sequence similarity to Enterococcus pallens and Enterococcus hermanniensis. When comparing the ALS3T genome with these two type strains, the average nucleotide identity values and digital DNA-DNA hybridization values were 72.6-73.3 and 19.2 %, respectively. The G+C content of the genomic DNA from strain ALS3T was 35.6 mol%. Results of sequence analysis, together with enzymatic activities and characteristics of carbohydrate metabolism, indicated that strain ALS3T is distinct and represents a novel species, for which the name Enterococcus alishanensis sp. nov. is proposed. The type strain is ALS3T (=NBRC 109593T=BCRC 80605T).

Дикарбонільний стрес: гіпотеза клітинного пошкодження в умовах гіпоксії. Пусковий механізм розвитку мультиорганної дисфункції

Актуальність. Різноманітні критичні стани організму часто асоційовані з розвитком гіпоксії, у результаті чого активуються механізми гліколізу, під впливом звільнення стресових гормонів розвивається гіперглікемія. Показано, що в умовах анаеробного гліколізу на тлі гіперглікемії в клітинах продукуються токсичні речовини, що викликають гліколізування протеїнів та нуклеїнових кислот. Разом із порушенням функції клітинних білків виникає мітохондріальна дисфункція, що призводить до енергетичного дефіциту та порушення функціонування органів. Мета дослідження: виявити провідні механізми дикарбонільного стресу, їх значення для формування критичних станів організму та визначити найбільш перспективні способи корекції для фахівців у галузі інтенсивної терапії. Матеріали та методи. Детальне вивчення результатів сучасних наукових досліджень процесів вуглеводного обміну при патологічних станах на підставі інформації, поданої в Інтернеті. Результати. Провідна роль у пошкодженні клітинних структур організму при дикарбонільному стресі належить гліоксалю та метилгліоксалю. Ці хімічні сполуки утворюються як побічні продукти анаеробного гліколізу. Збільшенню їх синтезу сприяють активація анаеробного гліколізу та гіперглікемія. Дикарбонільні сполуки вступають у хімічні реакції з амінними групами протеїнів, нуклеїнових кислот та інших біологічно активних сполук, порушуючи їх функціонування. Природна детоксикація здійснюється гліоксалазною системою за участю відновленого глутатіону, що є основним компонентом антиоксидантної системи. Прогресування окислювального стресу та поява антиоксидантного дефіциту зумовлюють збільшення тяжкості пошкоджень, що викликає підвищене утворення гліоксалю та метилгліоксалю. Профілактика дикарбонільного стресу здійснюється за допомогою збільшення потужності антиоксидантної системи, насамперед за рахунок зростання утворення відновленого глутатіону. Для нейтралізації токсичних дикарбонільних метаболітів можуть бути використані препарати, що виконують функцію «пасток». Перспективне застосування терапії, що спрямована на усунення мітохондріальної дисфункції. Висновки. Нова проблема пошкодження організму в умовах дикарбонільного стресу диктує необхідність аналізу та переоцінки численної кількості заходів інтенсивної терапії. Докладне вивчення особливостей вуглеводного обміну при різних критичних станах, включаючи визначення концентрації гліоксалю та метилгліоксалю, моніторинг рівня глікемії та кліренсу лактату в поєднанні з поверненням до оцінювання стану компенсації функції прооксидантної/антиоксидантної системи організму, є одним із перспективних напрямів наукових досліджень у клініці, що має розпочатися. Фахівці з інтенсивної терапії щоденно стикаються із ситуаціями, коли дикарбонільний стрес може виступати як один із дійсних механізмів формування органної та мультиорганної дисфункції й визначає розвиток декомпенсації життєво важливих функцій. Навчитися протистояти йому є актуальною найближчою задачею.

Features of carbohydrate metabolism in patients with comorbidity of non-alcoholic fatty disease and hypertension

IntroductionNon-alcoholic fatty liver disease (NAFLD) affects about 25% of adults. Considerable attention is paid to the NAFLD and hypertension (HT) comorbidity. Carbohydrate metabolism indicators in patients with NAFLD allow to assess the negative effects of the comorbid course of NAFLD and HT. PurposeTo study the carbohydrate metabolism features in patients with NAFLD and HT. MethodsWe observed patients with NAFLD and HT (n=63), isolated NAFLD (n=52) and healthy volunteers (n=20). Biochemical parameters were obtained according to standard methods, HOMA-IR index was determined according to the accepted formula. Statistical analysis was performed using standard methods. ResultsGlucose (5.87 mmol/l (5.76; 5.98)) and insulin (17.03 μIU/ml (16.03; 17.25)) levels were increased in patients with NAFLD and HT in comparison with the isolated NAFLD group (5.62 mmol/l (5.43; 5.60); 13.84 μIU/ml (13.42; 14.49)) and the control group (4.52 mmol/l (4.48; 4.61); 11.40 μIU/ml (11.27; 12.44). The HOMA-IR index was 4.67 (4.17; 4.50) and 3.40 (3.29; 3.55) in NAFLD and HT patients and in isolated NAFLD group (Fig.1). Glucose levels correlated with systolic (r=0.32) and diastolic (r=0.26) blood pressure in NAFLD and HT patients. Risk of insulin resistance was directly connected with body mass index and waist circumference in NAFLD and HT patients (r=0.69; r=0.51), and in isolated NAFLD patients (r=0.52; r=0.46). ConclusionsHyperglycemia and insulin resistance characterize NAFLD patients. These changes are aggravated by the addition of HT, increased body weight, abdominal obesity presence and higher BP grade. This shows negative effect of HT on carbohydrate metabolism in NAFLD patients.

Age-related changes in the parameters of carbohydrate metabolism and supply of vitamins B1, B2 in residents of two northern regions.

A great deal of research was being done in studying of the age-related characteristics of carbohydrate metabolism and the provision of vitamins B1, B2 among the population of the Subarctic (SR) and Arctic (AR) regions, differing in the extreme natural and climatic-geographic living conditions. The surveyed population was divided into five age groups: 16-21, 22-35, 36-45, 46-60 and 61-74 years old. The parameters of carbohydrate metabolism (glucose, lactate, pyruvate) were determined in the blood serum, the content of thiamine (thiamin diphosphate effect) and riboflavin - in hemolysates, and the values of the lactate/pyruvate ratio (Lac/Pyr) were calculated. Statistical data processing was performed by nonparametric methods. An increase in glucose levels was found in persons of older age groups. Age-related fluctuations of metabolites of carbohydrate metabolism were manifested by a lower content of lactate and the value of the Lac/Pyr ratio in persons aged 16-21 years. Regardless of the age and region of the survey, there were revealed high lactate concentrations, Lac/Pyr values and reduced pyruvate levels, as well as low glucose levels in group aged 16-21 year in AR. For vitamins B1, B2, no pronounced age-related changes were observed, while the content of riboflavin was higher in persons of SR. Moderate hypovitaminosis of thiamin was detected in 13-20,1% and 6,1-22,7% of cases in SR and AR, pronounced - 8,3-11,6% and 4,6-23,5%, respectively, vitamin B2 deficiency was noted in 19,4-23,9% of persons in the AR and in 33,8-42,9% of persons in the AR. Vitamins in both regions at different age periods contributed to the formation of levels of indicators of carbohydrate metabolism: glucose and pyruvate in SR, lactate in AR.

The Model of Sugar Metabolism and Exercise Energy Expenditure Based on Fractional Linear Regression Equation

Abstract Carbohydrate metabolism can provide energy for human exercise. However, different exercise intensities will consume different amounts of energy. For this reason, the paper uses a fractional linear regression equation to study the characteristics of carbohydrate metabolism and energy consumption of other groups of human beings with the same oxygen consumption during exercise. In addition, the thesis measures energy consumption during exercise and body recovery by analyzing gas metabolism methods. As a result, we found that the sugar, fat metabolism, and energy consumption of heavier volunteers under the same exercise intensity were lower than those of regular weight volunteers. Thus, the fractional linear regression method can help us analyze the relationship between glucose metabolism and exercise energy.

GCK-MODY diabetes course in persons over 18 years of age: prospective observation

Most young patients with hyperglycemia have type 1 diabetes and type 2 diabetes but up to 10% of all cases of the disease occur in MODY (Maturity Onset Diabetes of the Young). Published abstracts show features of the debut, laboratory and genetic characteristics of MODY in the Russian population. However there is a small amount of data on the clinical course of this nosology in the Russian Federation.Aim: To investigate the characteristics of the 3-year course of GCK-MODY diagnosed after 18 years.Materials and methods: 85 probands and 46 relatives of the first and second degrees of kinship with a clinical diagnosis of GCK-MODY were examined: biochemical and hormonal blood tests, ultrasound, molecular genetic studies. Patients were invited for a follow-up visit 3 years after verification of the pathogenic mutations associated with GCK-MODY. Examination, biochemical and hormonalanalyzes , ultrasound were done in second visit.Results: The diagnosis GCK-MODY was verified by a molecular genetic study in 25 probands (29.4%). In 33 of 46 (71.7%) relatives of patients with GCK-MODY were diagnosed identical mutations. In 31 patients with GCK-MODY diagnosed after 18 years, a dynamic observation was performed for three years. Most patients over 18 years of age did not have clinical manifestations of carbohydrate metabolism disorders when diagnosing GCK-MODY and follow up visit. Skin rashes and allergic reactions prevailed among concomitant pathologies. Patients with GCK-MODY had preserved β-cell secretion, HbA1c targets were achieved. Low fasting hyperglycemia prevailed which persisted even after treatment correction. Among the characteristics of carbohydrate metabolism, biochemical, lipid and hormonal parameters during GCK-MODY verification and after three years of observation no significant differences were obtained, which indicates a stable course of the disease. Half of the patients achieved normoglycemia by rational nutrition, two people with GCK-MODY within three years after determining the diagnosis were transferred from insulin therapy to oral glucose-lowering drugs. Among oral glucose-lowering drugs prior to GCK-MODY verification most patients used metformin, 3 years later — dipeptidyl peptidase-4 inhibitors.Conclusion. The results of a three-year follow-up of a group of patients with GCK-MODY demonstrate a non-progressive course of this type of diabetes with stable indicators of carbohydrate metabolism and low fasting hyperglycemia that persists after 3 years of observation. With the verification of GCK-MODY and the achievement of the target values of glycated hemoglobin and postprandial glycaemia by rational nutrition, even if a low level of fasting hyperglycemia is determined, the prescription of oral glucose-lowering drugs is not indicated in most cases.

The state of carbohydrate metabolism in children with gallstone disease

Cholelithiasis (cholelithiasis) has become increasingly common in childhood. Currently, the features of the clinical course have been studied, the criteria for the diagnosis and prevention of cholelithiasis in children have been worked out. However, the features of metabolic disorders are still not studied, among which not the least role in the genesis of the formation of gallstones is played not only by the exchange of lipids, but also carbohydrates.The main role in the regulation of carbohydrate metabolism is played by insulin. The process of production of insulin in the body in the blood serum fully reflects the concentration of C-peptide. The ratio between insulin and C-peptide is not always constant. It may shift in one direction or another against the background of diseases of the internal organs, including the GI tract.The analysis for C-peptide and insulin allows you to identify not only hypo — or hyperglycemia, but also to determine insulin resistance, calculate the HOMA index and, accordingly, make a forecast for the development of dyslipidemia. In this regard, it was of interest to study the state of carbohydrate metabolism (glucose, insulin, C-peptide) in children with cholelithiasis.The purpose of the study. To improve the early diagnosis of the complicated course of cholelithiasis by studying the features of carbohydrate metabolism for practicing therapeutic tactics and preventive measures.Materials and methods. Under our supervision at the Department of Pediatrics infectious diseases, faculty of postgraduate education of physicians of the Russian national research medical University of Minzdrav of Russia (head.DEP. — M. D., Professor L. A. Kharitonov), city children’s polyclinic № 122 (chief doctor — PhD Bragin A. I.) were 140 children aged from birth to 15 years. Carbohydrate metabolism was studied in 140 children of the study group. Boys were 62, average age 10.0±4.9, girls were 78, average age 8.8±4.5. The parameters of serum glucose, insulin, and C-peptide were evaluated. The Homeostatic Model Assessment (NOMA) Insulin resistance Index will be calculated using the formula: NOMA-IR = (fasting plasma glucose (mmol/l) x fasting serum insulin (mkED / ml))/22.5 (Cuartero B., 2007). The physical development of children was evaluated according to WHO standards (2006) using the WHO Anthro Plus program (2009). We evaluated the values of the average values of body weight(MT), height (body length, DT) and body mass index (BMI) in five groups of newborns. The nutritional status was determined by the values of the Z-score value. Mathematical calculation of the results was carried out on a personal IBM — compatible computer using the statistical program Statistica 6.0.Results. In children with GI, there was a tendency to increase the NOME index, both in frequency and in absolute terms, from the age of 8 and persisted until the age of 15(0,65±0,14;0,42±0,04; 4,89±1,12; 4,86±0,44; according to the age periods, p< 0.005).Conclusion. Thus, disorders of carbohydrate metabolism in children with GI depend on the child’s age and body weight. In overweight children, an increase in C-peptide, insulin, and the resistance index was observed, which suggests that children with GI occurring against the background of overweight at the age of 8–11 and 12–15 years are threatened by the formation of metabolic syndrome, diabetes mellitus, and arterial hypertension.

The characteristics of carbohydrate metabolism during cushing’s disease

Searchable abstracts of presentations at key conferences in endocrinology ISSN 1470-3947 (print) | ISSN 1479-6848 (online)

АНАЛИЗ ВЛИЯНИЯ МЕДИ НА УГЛЕВОДНЫЙ ОБМЕН У КАРПА

The article discusses some aspects of the toxic effects of copper acetate on the body of fish. Heavy metals are highly toxic to aquat-ic organisms due to their ability to accumu-late and transform within the biocenosis of the reservoir. The aim of the study was to study the indicators of carbohydrate metabo-lism in carp after exposure to various con-centrations of copper acetate. The study of the features of carbohydrate metabolism, including the intensity and direction of ex-change can be useful in assessing the re-sponse of fish to toxic effects. During the experiment, 4 groups of fish were formed - 1 control group (10 fish), 3 experimental groups – 10 fish each. Experimental groups of fish were contained in a solution of cop-per acetate (Cu(CH3COO)2) with concentra-tions of 0.01 mg/l, 0.1 mg/l, 1 mg/l (exceeding the MPC of copper for fisheries reservoirs by 10, 100 and 1000 times, re-spectively). Glucose concentration and se-rum amylase activity were studied. Glucose is necessary for supplying energy to various processes occurring inside the body,including reactions to toxic substances. Amylase, however, is an enzyme responsible for catalyzing the breakdown of complex carbohydrates. We found such changes in carbohydrate metabolism in carp as a signifi-cant increase in serum amylase activity by 6.63%, 7.9% and 19.57% when exposed to 10, 100 and 1000 MPC of copper, respec-tively, as well as a significant increase in glucose concentration by 8.54%, 20.28% and 29.7% when exposed to 10, 100 and 1000 MPC of copper, respectively, compared to the control group.