Body Weight Deficit Research Articles

Peculiarities of length-weight somatometric indices in school-age children of the industrial center

Introduction. Children’s health is of particular value, being a medical, biological and social and labour potential for any state. Objective and informative health indices include parameters of the physical development. The aim of the study is to assess length-weight somatometric indices in children studying in general educational institutions of Ulan-Ude. Materials and methods. The sample of respondents included nine hundred thirty two school-age children. Variables were sampled for length and weight, body mass index was calculated and compared with WHO criteria. Descriptive statistics are expressed as mean and standard deviation, Student’s t-test was used to compare means. Results. Among children of the industrial center, persons with harmonious physical development predominate (51.9±2.6%). Among the variants of disharmonious physical development in boys and girls, excessive body weight (27.3±2.3% and 22.9±1.9) and high height (12.6±1.7% and 14±1.6%, respectively) prevailed. The proportion of other variants of disharmony (low length, body weight deficit and their combination) is small. The phenomena of sexual dimorphism are quite pronounced in children – acceleration of growth differed from the general patterns earlier by 2–3 years. Limitations. The results of the study have limitations in relation to children with various health disorders. Given the small number of age groups, as well as the fact that children of one industrial center were examined, the diagnostic significance of the data obtained may be less objective. Conclusion. Regional features of growth-weight somatometric indices are important to timely identify children with disharmonious development as early as possible to prevent long-term consequences.

Hippocampal Serotonin and Responses to Immobilization Stress in Rats Treated with Metformin

Background: Stress-related illnesses and depression are rising in modern society. Selective serotonin reuptake inhibitors as well as other antidepressants, are also not very effective and commonly exhibit partial remission, suggesting the need for novel therapeutic agents for treating anxiety and depression. Objective: The present study was designed to investigate serotonergic mechanisms in the potential anxiolytic and stress-reducing effects of metformin. Method: In the first experiment, rats were given two doses (50 and 100mg/kg) of metformin to monitor the effects of repeated administration on motor activity, anxiety, and 5-HT-1A receptor expression in the hippocampus and raphe nuclei. The second experiment was conducted in 2 parts, in 2a. experiment, control, and metformin (50 mg/kg) treated rats were immobilized for 2 hours for 5 consecutive days. Food intake and body weight were monitored daily and anxiety-like behavior was monitored on days 2 and 6. On day 6, rats were again immobilized for 2 hours, and after termination of stress rats were sacrificed to collect the hippocampus for HPLC-EC analysis of serotonin (5-hydroxytryptamine; 5-HT) and 5-hydroxy indole acetic acid (5-HIAA). In 2b. experiment, control, and metformin (50 mg/kg) treated rats were immobilized for 2 hours, and after 2 hours rats were sacrificed to collect the hippocampus for HPLC-EC analysis of 5-HT and 5-HIAA. Results: We found that metformin treatment exhibited anxiety reduction associated with greater expression of 5-HT-1A receptor in the hippocampus and reduced expression in the raphe nuclei. Immobilization stress-induced food intake and body weight deficits were comparable in control and metformin-treated rats, but the anxiogenic effects of stress were smaller in the metformintreated group. Stress-induced decreases of hippocampal 5-HT were smaller in metformin-treated than in control rats. Conclusion: Metformin can reduce stress-induced anxiety mediated via an increase in hippocampal 5-HT levels and 5-HT-1A heteroreceptor expression.

Experimental analysis of the effect of low water temperature on oogenesis of juvenile chum salmon

The state of gonads is examined for juvenile chum salmon exposed for two weeks at low water temperature, for different stages of their embryonic-larval development. The transfer of the embryos and larvae from the water with temperature of 10.0–12.0 о C to the water with temperature of 1.3–1.8 о C slowed both somatic growth of the fish and development of their germ cells in all cases. The deficit in body weight and ovarian weight of experimental fish was not compensated later. However, the gonad weight was decreased in the somatic component and did not affect the fund of germ cells, in the medium term. The state of ovaries did not differ between the control and experimental groups of fish 50 days after the end of exposure, regardless of the initial condition of gonads in the experiment.

Оценка пищевого статуса у детей с атопическим дерматитом, ассоциированным с пищевой аллергией

Aim. To assess the nutritional status and body composition of children with atopic dermatitis (AD) and food allergy (FA). Design. Prospective comparative observational study. Materials and methods. We observed 129 children: 59 participants in the main group with AD, the exacerbations of which are associated with FA, and 70 children in the comparison group. Age — from 1 year to 6 years (mean age — 3.44 ± 1.61 years). In the main group, there were 32 (54.2%) boys and 27 (45.8%) girls. Mild AD was observed in 12 (20.3%), moderate — in 36 (61.1%), severe — in 11 (18.6%) children. All patients followed elimination diets. A comprehensive clinical, laboratory, instrumental, allergological (for specific IgE antibodies to food allergens) examination was conducted, as well as measuring the height and body weight of patients. Body composition was determined by bioimpedancemetry. Results. Assessment of nutritional status showed that Z-score indicators were normal in 24 (40.7%) patients of the main group and in 54 (77.1%) children from the comparison group. Mild and moderate body weight deficit was observed only in the main group — in 31 (52.5%) children. In the main group and in the comparison group, children with overweight and obesity were identified (6.8 and 22.9%, respectively, p = 0.0003). Anthropometric indicators according to Z-score corresponded to the parameters of body component composition. A detailed analysis of the body component composition showed that children with mild to moderate underweight had disorders in the form of decreased lean, fat, skeletal muscle and active cell mass, which most accurately reflects the nutritional status of these patients. Etiologically significant allergens were egg (47.5%) and cow's milk (35.6%), as well as soy (16.9%), cod (13.6%), and wheat (13.6%). Conclusion. Most children with AD and PA had nutritional deficiencies associated with alimentary factors (deficiency of nutrients due to long-term elimination diets). Some children, on the contrary, were overweight and obese, which is an alarming sign. The type of diet therapy in such patients should be selected depending on the nutritional status and body component composition. Keywords: children, atopic dermatitis, food allergy, nutritional deficiencies, body component composition.

Трансформація цінностей дівчаток-підлітків під впливом комплексної оздоровчої програми

The study on the impact of a health program using the means of health fitness, motivational training, and psychocorrective activities on the transformation of value orientations of underweight teenage schoolgirls is relevant. The aim of the study is to investigate the impact of a comprehensive health program on the transformation of value orientations and school anxiety of underweight adolescent girls. The study involved 69 underweight adolescent girls (among them 54 12-yearold girls and 15 13-year-old girls). Methods. To assess value orientations, the M. Rokych’s methodology was used. The Phillips test was used to assess the level and nature of school anxiety in teenage girls. The factor structure of value orientations and school anxiety of 12-13-year-old girls with body weight deficiency was studied using factor analysis. Results. Based on the factor analysis, the transformation of the girls’ instrumental values, as well as the positive dynamics of the decrease in their school anxiety indicators, were accepted as criteria for the effectiveness of the health program. The program was designed for 9 months of duration and included psychocorrective activities, motivational training, and health-enhancing recreational physical activity. After the study, the value of health increased by 2 points and was in the top three most important values, and the value of knowledge rose by 6 units in the ranking of values. Among the positive changes, it should be noted that the rating of such a value as “Sensitivity” increased by 7 points and “Intolerance to shortcomings in oneself and others” decreased by 9 points. After participation in the program, there was a decrease in school anxiety indicators (frustration of the need to achieve success, which is expressed in an unfavorable mental background that does not allow the child to achieve a high result and fear of self-expression, which is manifested in negative emotional experiences of situations related to the need t present myself to others). Conclusions. The proposed program had a positive effect on the transformation of value orientations, the reduction of school anxiety indicators of 12–13-year-old girls with a body weight deficit.

Anthropometric characteristics of patients suffering from chronic cystitis

Introduction. With a depressingly high prevalence of chronic cystitis (it is believed that half of women suffer from acute cystitis at least once in their lives), there is still no clarity on this disease. We were unable to find any studies on the anthropometric characteristics of patients with chronic cystitis either in the domestic or in the English literature.Objective. To assess the anthropometric characteristics of patients with chronic recurrent cystitis.Material & methods. A prospective multicenter cohort study included 91 patients with symptoms of acute cystitis. All underwent anthropometric measurements, analyzed complaints, studied anamnesis morbi et vitae, performed a study on a gynecological chair; urine was sent for general analysis and bacteriological examination for nonspecific microflora with the determination of the sensitivity of the isolated pathogen to antimicrobial drugs. The patients answered questions about the Russian version of the Acute Cystitis Symptom Score (ACSS). A urethra and cervical canal smear was studied using the polymerase chain reaction method to identify the causative agents of sexually transmitted infections. The diagnosis was considered confirmed in the presence of leukocyturia, bacteriuria, and the sum of symptoms on the ACSS scale was 6 or more.Results. The duration of chronic recurrent cystitis was averaged at 7.1 ± 4.2 years. The age of the patients ranged from 18 to 49 years, averaging 28.9 ± 3.9 years. The height ranged from 150 cm to 178 cm, on average 165.9 ± 7.1 cm. The average weight was within the normal range: 64.2 ± 6.1 kg. However, the spread in the cohort by body weight was two-fold: from 42 to 86 kg. Overweight was found in five (5.5%) patients; two patients (2.2%), on the contrary, had a body weight deficit. When analyzing anthropometric indicators, along with the obvious ones (direct dependence of the duration of the disease on the age of the patient; direct dependence of the quality of life on the severity of symptoms), other statistically significant correlations were established: a positive relationship between age and weight, weight and duration of the disease.Conclusion. The analysis showed that overweight women respond to treatment worse, they have a longer history of cystitis. Neither typical symptoms nor ACSS score correlated with any of the anthropometric measures.

Optimization of the complex treatment of chronic pancreatitis in elderly patients using systemic enzyme therapy

In the last few years, the number of young people with pancreatic pathology has increased. However, exacerbation of chronic pancreatitis (CP) in “favorable conditions” occurs at any age, leading to extremely unfavorable consequences.
 The aim is to study clinical and etiological factors of CP in elderly patients and optimize the complex treatment of this category of patients by including a systemic enzyme therapy agent.
 Materials and methods. The study included 98 CP patients, with a mean age of 71.3±1.4 years, who were randomized into two groups. All patients received the standard conventional treatment complex (CTC): pantoprazole 40 mg on an empty stomach on demand; prolonged enzyme replacement therapy with pure pancreatin at an adequate dose with each meal; prokinetics and/or antispasmodics as needed for 6 weeks. The study group was randomized into two groups: group I (CTC) — 20 patients got only CTC; group II (CTC+W) — 78 patients received Wobenzym in addition to CTC, 5 tablets three times per day.
 Results and discussion. It has been proven that CP in elderly patients occurs against the background of mixed etiopathogenetic factors: ischemic (87.7%), gastroduodenal (84.7%), and dyslipid (70.4%). Clinically, asthenic and dyspeptic syndromes predominate (92.8% and 77.5%, respectively). According to the anthropometric examination, body weight deficiency is observed in 64.3% of the examined, with endocrine pancreatic insufficiency in 29.6% in terms of fasting glucose and exocrine pancreatic insufficiency in 70.4% in terms of FαE. The use of CTC contributed to the reduction of dyspeptic and painful abdominal syndromes (p˂0.05), a decrease in body weight deficit by 4.3% in terms of body mass index, and a tendency to normalize pancreatic function.
 Conclusions. The addition of CTC with Wobenzym resulted in a decrease in the clinical manifestations of the disease (p<0.03–p<0.05), an improvement in carbohydrate imbalance in terms of postprandial glycemia (p<0.05), and a trend towards a decrease in the level of glycated hemoglobin by an average of 0.2%. The administration of Wobenzym in the complex treatment of CP in elderly patients contributed to an increase in the level of FαE by 42.6% compared to this index before treatment (p<0.001) and a decrease in nutrient deficiency due to the elevated body mass index of this category of patients by 7.0%.

Physical development of preterm monochorionic diamniotic twins at birth: retrospective cohort study

Background. Much controversy surrounds the estimation of anthropometric parameters in multiple newborns. In newborn monochorionic diamniotic twins, these parameters can be affected by specific antenatal complications.Objectives. To estimate the physical development parameters of preterm monochorionic diamniotic twins according to standards proposed within the INTERGROWTH-21st project, taking specific intrauterine complications into account.Methods. The anthropometric data were analyzed in 148 pairs of newborn monochorionic diamniotic twins, who were divided into three groups according to the presence of specific intrauterine complications: Group I (n = 56 pairs) — twin-to-twin transfusion syndrome (TTTS); Group II (n = 38 pairs) — selective intrauterine growth restriction (sIUGR); Group III (n = 58 pairs) — absence of the above-mentioned specific complications. The obtained data were statistically processed on a personal computer via variation statistics methods using Microsoft Excel spreadsheets (Microsoft, USA) and an online service available at https://medstatistic.ru.Results. Newborns with sIUGR (37–100.0%) and 26 (49.1%) donors fell into the category of newborns light for gestational age. Disharmonious (3–10th percentile) and markedly disharmonious (below the 3rd percentile) physical development at birth was most commonly observed in newborns with sIUGR and, to a lesser extent, in donors (OR — 9.2; 95% CI — 3.2–24.3; p < 0.05), which was noted only occasionally in monochorionic twins from other groups. A combined decrease in the values of birth centiles for head circumference, body weight, and body length was found in 13 (35.1%) newborns with sIUGR and in 12 (22.6%) donors, which may mark the severity of antenatal complications and the development of neurological deficit.Conclusion. Monochorionic diamniotic twins include newborns having greater and lower body weights. In the newborn having a lower birth weight, specific complications associated with monochorionic multiple pregnancy result in body weight and length deficit, disharmonious development due to the lack of nourishment (22.6% in the TTTS group and 73.0% in the sIUGR group), as well as delayed head circumference growth in 56.8% of newborns with sIUGR.

PRODUCTIVITY OF COWS DEPENDING ON THE PRESENCE OF HYPOCHROMIC ANEMIA DURING GESTATION

The research was conducted to study the effect of hypochromic anemia in during the middle of the third trimester of gestation on production indicators and the quality of the offspring obtained. It was found that in the cows in case of the hypochromic anemia during gestation, milk productivity decreases with a high degree of probability and the duration of the service period increases. In addition, the quality of the resulting offspring decreases, which is characterized by the presence of antenatal anemia and body weight deficit. With a decrease in the hemoglobin level to 79.0 g/L in cows during gestation, the risk of fetal hypoxia increases, and with its lower value, the risk of giving birth to calves with hypotrophy syndrome increases. The sensitivity of the indicator was 1.0%, and its specificity was 41.2%.

Frequency of night eating syndrome and melatonin levels in the urine of adolescents

Aim. The aim is to study the frequency of night eating syndrome (NES) and its correlation with melatonin levels in the daily urine of adolescents. Materials and methods. Primary screening of 486 adolescents (15–18 years) with complaints of eating disorders, overweight, obesity, which included a survey (test “Depressive Disorders in Adolescents”, Night Eating Questionnaire (NEQ), Dutch Eating Behaviour Questionnaire (DEBQ) and anthropometry (BMI) was conducted. In the second stage, a sample of 56 adolescents (11.5 %) who met the NES criteria of DSM-5 (main group) and 50 adolescents who did not have NES (comparison group) was formed. The urine concentration of 6-sulfatoxymelatonin (6-COMT) was determined by enzyme immunoassay (Buhlmann 6-Sulfatoxymelatonin ELISA Kit, Switzerland). Results. Deficit of body weight had 3 (8.8 %) of adolescent boys, 20 (58.8 %) were overweight, 1 (2.9 %) – obese and only 10 (29.4 %) had the average normative values of body weight; among female adolescents, 1 (4.5 %) – body weight deficit and obesity, 10 (45.5 %) – overweight and average normative indicators. According to the DEBQ, restrictive eating behaviors were identified in 15 (26.8 %) adolescents; in 30 (53.6 %) adolescents – emotional and in 11 (19.6 %) adolescents – external. The mean score of the NEQ was 28.4 ± 2.2 and positively correlated with BMI (r = +0.62, P < 0.05). Participants who exceeded the screening threshold for NES (n = 56, 11.5 %) had increased BMI (P < 0.01), likelihood of overweight/obesity (P = 0.001), consumption of sugary drinks (P < 0.001), daytime sleep less than twice a week (P < 0.01), shorter sleep duration (P < 0.01), high and moderate levels of depression, lower levels of melatonin, which were inversely correlated with the results of the NEQ (r = -0.68, P < 0.05). Conclusions. The prevalence of NES among teenagers was 11.5 %. Among the types of eating behavior, the most common was the emotional type (53.6 %). Adolescents with NES had a significantly higher total depression score (96.7 ± 8.06, P < 0.001) and a lower level of 6-COMT (22.89 ± 3.44, P < 0.001), which was inversely correlated with the degree of NES (r = -0.68, P < 0.05), BMI (r = -0.74; P < 0.01) and depression level (r = -0.65; P < 0.01).

PROGNOSTIC SIGNIFICANCE OF CLINICAL AND LABORATORY FINDINGS IN THE NEW CORONAVIRUS INFECTION COVID-19

The new coronavirus infection COVID-19 is characterized by high mortality. The aim of the study was to establish the role of gender, age, concomitant diseases, shifts in laboratory findings in predicting fatal outcome in COVID-19 patients. The study was conducted on the basis of emergency medical care hospital (Cheboksary). 182 case histories of COVID-19 patients who underwent inpatient treatment were analyzed, 82 of whom died. The frequency of outcomes in different clinical conditions and laboratory shifts were analyzed, the relative risk (RR) of lethal outcome and its confidence interval were calculated. Mortality is naturally associated with the number of points on the NEWS 2 scale, the extent of pulmonary tissue involvement, no connection with gender was found. The prognostic value of acute kidney injury (RR – 2.57), chronic kidney disease (RR – 1.47), arterial hypertension (RR – 3.04), coronary heart disease (RR – 2.60), chronic nonspecific lung diseases (RR – 1.53), elderly and senile age (RR – 2.84, HR – 4.90), obesity of II-III degrees (RR – 1.97), body weight deficit (RR – 1.82) is shown. The ROC analysis method determined the levels of C-reactive protein in the blood (> 25 mg/l, RR – 3.2), an increase in procalcitonin (RR – 3.80), D-dimer (> 562.8 ng/ml, RR – 3.15), leukocytes (> 9.52×109/l, RR – 2.22), lymphocytes (< 1.15×109/l, RR – 2.04), interleukin-6 (> 13.2 pg/ml, RR – 3.38), fibrinogen (> 6.4 g/l, RR – 1.57), creatinine (> 91.8 mmol/l, RR – 1.95), lactate dehydrogenase (> 558 mmol/l, RR – 2.28), glomerular filtration rate (GFR < 63.8 ml/min / 1.73 m2, RR – 2.55), going beyond which significantly increases the risk of fatal outcome. Hence, along with the known factors in the high-risk group, it is necessary to take into account a specific body mass index, age group, renal function indicators and a number of inflammatory changes in the blood.

Energy restriction induced SIRT6 inhibits microglia activation and promotes angiogenesis in cerebral ischemia via transcriptional inhibition of TXNIP

Energy restriction (ER) protects against cerebral ischemic injury, but the underlying mechanism remains largely unclear. Here, rats were fed ad libitum (AL) or on an alternate-day food deprivation intermittent fasting (IF) diet for 3 months, followed by middle cerebral artery occlusion (MCAO) surgery. The body weight, infarct volume, and neurological deficit score were accessed at the designated time points. ELISA, qRT-PCR, and Western blotting were used to determine cytokine secretion and the expression of SIRT6, TXNIP, and signaling molecules, respectively. Immunofluorescence evaluated microglial activation and angiogenesis in vivo. For in vitro study, oxygen-glucose deprivation/reoxygenation (OGD/R)-treated cell model was generated. MTT and tube formation assays were employed to determine cell viability and tube formation capability. ChIP assay detected chromatin occupancy of SIRT6 and SIRT6-mediated H3 deacetylation. We found that IF or ER mimetics ameliorated cerebral ischemic brain damage and microglial activation, and potentiated angiogenesis in vivo. ER mimetics or SIRT6 overexpression alleviated cerebral ischemia and reperfusion (I/R)-induced injury in vitro. SIRT6 suppressed TXNIP via deacetylation of H3K9ac and H3K56ac in HAPI cells and BMVECs. Downregulation of SIRT6 reversed ER mimetics-mediated protection during cerebral I/R in vitro. Our study demonstrated that ER-mediated upregulation of SIRT6 inhibited microglia activation and potentiated angiogenesis in cerebral ischemia via suppressing TXNIP.

Доклиническая оценка лечения на модели хронического остеомиелита у кроликов

Introduction. Chronic osteomyelitis is one of the problems in orthopedic surgery. Recently, in the treatment of chronic osteomyelitis, biodegradable materials are increasingly used as a local antibiotic carrier. In our study, we used bone allograft, which prepared by Marburg system. The purpose of the study was to evaluate preclinical changes of use the antibiotic-impregnated bone allograft on osteomyelitis model in rabbit. Materials and methods. Osteomyelitis was caused in rabbits by the human strain Staphylococcus aureus, which is introduced into bone defects created in the distal femur. Three groups were selected depending on the filling: group 1 - antibiotic impregnated biodegradable material “PerOssal”, group 2 –whole bone allograft soaked in antibiotic, group 3 - perforated bone allograft soaked in antibiotic. We used a clinical examination for the evaluating decreasing of chronic osteomyelitis process.Results. The body temperature of all experimental animals was measured with a non-contact thermometer during the entire observation period, which was 42 days. The average temperature in rabbits in groups before surgery was 36.90 in-group 1; in-group 2 - 36.40; in-group 3 - 36.20. On the first day after the operation, in groups 1 and 3, there was no significant difference with the initial body temperature in rabbits before the operation, while in-group 2, the body temperature on the first day after the operation was 39.00. In the early postoperative period, the maximum increase in body temperature is observed on the 3rd day in-group 1 up to 39.20 and in-group 3 38.20. In-group 2, the maximum rise in temperature was on the 2nd day after surgery up to 38.60. The average weight in operated rabbits before surgery was 2983.3 g in-group 1; in-group 2 - 3206.7 gr; in-group 3 - 2300.0 gr. In the 1st group in the postoperative period in the 1st group there is a deficit on the early postoperative day amounted to 1.3 g in dynamics decreased up to 5 days and then there was a stable increase in weight, which in general by the 42nd day was 783, 4 grams. In-group 2, on the first day, there was a maximum body weight deficit of up to 92.3 g, with a subsequent increase, and in general, for the entire observation period, the increase was 200 g. In-group 3, on the first postoperative day, the body weight deficit was 13.9 grams. In the dynamics, there was a slight instability in weight, for example, on day 5, body weight was 3284.6 g, with a decrease on day 6 to 3169.2 g. Visually assessing the wound in-group 1, wound suppuration, divergence or instability of the sutures were not noted. In-group 3, on the 28th day after the operation, there was a slight infiltration of soft tissues in the area after the surgical wound. In the 2nd group on the 14th day there was a slight infiltration of soft tissues in the area after the surgical wound, and on the 28th and 42nd days there was suppuration of the postoperative wound.Conclusion. Thus, in this study we showed, that perforated bone allograft is an available biomaterial can be used in bone regenerative surgery.Key words: Preclinical evaluation algorithm, chronic osteomyelitis, rabbits model, preclinical study

Development of tibia & fibula bone deficits in children with neurofibromatosis type I - A longitudinal case-control comparison.

Neurofibromatosis type 1 (NF1) is associated with lower bone mass and increased risk of fracture. Children with NF1 display faltering growth from mid-childhood. However, to date tibia bone development in children with NF1 across childhood and the role of body size have not been explored. Therefore, we recruited 24 children with NF1 (12 girls, mean age 8.2±1.1y) and 104 children without NF1 (52 girls, mean age 11±1.7y). Tibia and fibula bone characteristics were assessed at 4% and 38% distal-proximal tibia length in all children at baseline using peripheral quantitative computed tomography (pQCT). Longitudinal scans were obtained in 21 children with NF1 (12 girls) over 3.4±0.3y and 71 children without NF1 (34 girls) over 1.1±0.1y, such that at follow-up mean age of both groups (NF1 10.9±1.3y, controls 11.4±1.4y) were similar. Effects of group (NF1/control) on bone outcomes as well as group-by-age interactions, indicating differences in rate of change in bone outcome bone outcomes were assessed via linear mixed effects models with adjustment for sex, age, pubertal status and in additional models with adjustment for height and weight Z-scores. Group (NF1/control)-by-age interactions indicated a slower rate of tibia and fibula bone mass accrual in children with NF1 at all measured sites. These associations were attenuated by 25-50% by adjustment for height and weight Z-scores. At the 4% site, deficits in bone mass at older ages were related to slower trabecular BMD accrual. At the 38% site, group-by-age interactions suggested that bone mass deficits resulted from poorer accrual of cortical CSA and to a lesser extent cortical BMD. Lower limb bone mass deficits evident in children with NF1 appear to be progressive and emerge in mid-childhood. In part, they are related to development of a similar pattern of deficits in longitudinal growth and body weight in NF1. Interventions promoting muscle development or physical activity may be partially effective in attenuating bone mass accrual deficits in this population.

Vitamin D level and hormonal status association in adolescent girls with oligomenorrhea

Research objective: to determine the frequency of vitamin D deficiency and insufficiency to identify its association with reproductive hormones in adolescent girls with oligomenorrhea.Materials and methods. The work was carried out according to the results of clinical and instrumental examination of 68 adolescent girls 12–18 years old with oligomenorrhea, who were treated at the Department of Pediatric Gynecology of the State Institution “Institute for Children and Adolescents Health Care of the NAMS of Ukraine”. Patients were divided into two groups depending on the body mass index (BMI): group I – with a body weight deficit (BMI 16.31 ± 0.18 kg/m2), group II – with a BMI within physiological norm (20.0 ± 0.25 kg/m2). All patients underwent a comprehensive clinical and laboratory examination: luteinizing, follicle-stimulating hormones, prolactin, estradiol, testosterone, cortisol, 25(OH)D were determined in blood serum. Multivariate regression analysis was using for analyze the association of gonаdotropic, steroid hormones with vitamin D. The main characteristics of the object discrimination model are presented in the form of tables.Results. The article provides a comparative analysis of the hormonal profile and vitamin D level depending on BMI. It was revealed that a reduced 25(OH)D value was characteristic not only in patients with menstrual dysfunction, but also in peers with normal menstrual function. Schemes that characterize the pituitary-gonadal association with vitamin D were constructed based on the results of multiple regression analysis. Their features were determined in girls with different body weights. In patients with low energy resources there were direct associations between individual indicators of gonadotropins (follicle-stimulating hormone), steroid hormones (estradiol, cortisol) and vitamin D. An inverse association was observed between vitamin D and cortisol and prolactin in girls with balanced energy status.Conclusions. The reduced content of vitamin D is characteristically for patients with menstrual dysfunctions by the type of oligomenorrhea. Associations of gonadotropic, steroid hormones and vitamin D, depending on the energy status (nutrition) of patients with oligomenorrhea were revealed.

L-type calcium channel subtypes mediating hypothalamic dysfunction caused by amyloid-beta.

In Alzheimer's disease (AD), non-cognitive manifestations attributable to hypothalamic dysfunction such as systemic metabolic deficits can occur prior to the cognitive decline (Ishii, M. and Iadecola C., Cell Metabolism 22:761,2015). We previously found in Tg2576 mice overexpressing the Swedish mutation of amyloid precursor protein that amyloid-beta pathology can cause dysfunction in hypothalamic arcuate neuropeptide Y (NPY) neurons, associated with low adiposity and low plasma leptin levels prior to memory decline or plaque formation (Ishii, M. et al., J Neuroscience 34:9096,2014). Furthermore, the hypothalamic arcuate NPY neuronal dysfunction was caused by amyloid-beta modulating low-threshold activated L-type calcium channels (Ishii, M. et al., J Neuroscience 39:8816,2019). However, which of the two major brain L-type calcium channel subtypes Cav 1.2 or Cav 1.3 is involved has not been established. To examine the role of Cav 1.2, we used the Cre-lox system in genetic mouse models to knock-out Cav 1.2 in hypothalamic arcuate NPY neurons (Cav 1.2 cKO). Cav 1.2 cKO mice were bred to NPY-GFP and Tg2576 mice. Two to 3-month-old male or female mice were used for all studies. Voltage-gated L-type calcium currents from hypothalamic slices containing arcuate NPY neurons were recorded using whole-cell voltage-clamp. Cytoplasmic Ca2+ levels were measured ratiometrically by loading Fura-2AM in dissociated arcuate NPY neurons and recording the emitted fluorescence using an inverted fluorescent microscope. Exogenous oligomeric amyloid-β42 caused a significant increase in cytoplasmic Ca2+ levels and L-type calcium currents in arcuate NPY neurons to a similar extent in both Cav 1.2 cKO and wild-type (WT) littermate mice. These effects of amyloid-β42 were reversed by the L-type calcium channel blocker nimodipine. In vivo, Cav 1.2 cKO mice bred to Tg2576 mice had similar body weight deficits compared to Tg2576 mice without deletion of Cav 1.2 in the arcuate NPY neurons. These results suggest that Cav 1.2 does not have a significant role in amyloid-beta mediated dysfunction of hypothalamic arcuate NPY neurons and that Cav 1.3 is likely the major target of amyloid-beta in these neurons. Future studies modulating Cav 1.3 in hypothalamic neurons will help elucidate the mechanisms underlying hypothalamic dysfunction caused by amyloid-beta pathology and its therapeutic potential in AD.

Морфофункциональные показатели подростков, проживающих в городской и сельской местности севера Красноярского края

This paper analyses the morphofunctional parameters of 14–16-year-old adolescents living in urban (Lesosibirsk) and rural (Bor) areas in the north of Krasnoyarsk Krai. Based on the Quetelet index, boys and girls were divided into overweight (3.1 and 5.1 % respectively) and underweight (5.1 and 37.5 % respectively). Thus, the largest proportion of adolescents with a body weight deficit was recorded among boys (37.5 %). Reserve fat below the norm (< 11 %) was identified in 41 % of boy from Lesosibirsk and 80 % of boys from Bor. Moreover, in 9 % of the boys this parameter was critically low (3–4 %), which indicates dystrophy. The somatotype analysis revealed a weak development of the endomorphic component in all the groups under study, with the exception of girls from Lesosibirsk. Especially low values of this indicator were identified among boys from Bor (1.4 ± 0.2 points). All the subjects showed a decrease in respiratory parameters, namely, vital capacity was lower than the norm (р < 0.05) in girls by 0.9–1.1 litres and in boys by 0.5–0.7 litres. In general, vital capacity and peak expiratory flow were lower in adolescents from urban areas than in those from rural areas. The share of adolescents with an increased heart rate (> 90 beats/min) was largest among girls from Lesosibirsk (38 %); this group also had the biggest share of subjects with high Baevsky Stress Index (45 %). The share of subjects with high Baevsky Stress Index among boys varied in the range of 23.5–26.6 % and in girls, of 38.9–45.0 %. On the whole, the analysis of variational pulsometry parameters demonstrated a balance of the autonomic nervous system in heart regulation in 47.1–73.3 % of the subjects.

Nutritional status of children with familial hypercholesterolemia

Aim. To study the features of the nutritional status, including physical growth, body composition, energy value of the diet and the amount of cholesterol consumed with food, in children with familial hypercholesterolemia (FH).Patients and methods. The study included 39 children (19 girls, 20 boys) with familial hypercholesterolemia, both genetically confirmed (n = 11) and established on the basis of Simon Broome criteria (n = 28), aged 9.9 [6.0; 12.9] years. All children were assessed for physical growth based on the Z-score BMI, Z-score height, Z-score body weight/height calculated using the programs Anthro and Anthro plus; analysis of actual nutrition using a standard application program; study of body composition using the InBody 770 bioimpedance analyzer, the basal metabolic rate measured by indirect calorimetry.Results. 55 % of children with FH had harmonious physical growth, 27 % had a body weight deficit, 18 % were overweight or obese. 53 % of patients consumed more than 200 mg of cholesterol per day, while half of them consumed more than 300 mg of cholesterol per day. The range of excess consumption of cholesterol in comparison to the recommended physiological needs for patints with FH ranged from 24 to 67 %. The fat mass according to the body composition in 47 % of patients with FH is within the normal range, in 39 % it is reduced by 18-74 %, in 14 % it is increased by 14-197 %. The median fat percentage was 17.8 [12.7; 22.4]%. According to indirect calorimetry, it was found that the level of resting energy needs corresponded to age needs in 21 % patients, in 8 % it was decreased of 2-26 %, in 2/3 of children its increase was recorded by 3-69 %. The rate of fat oxidation, on the contrary, was increased in 71 % of children by 3-86 % and reduced only in 6 %.Conclusion. The physical growth of children with FH was mainly average, harmonious, while a third of the children had a mass deficit. The level of the main indicators of lipid metabolism did not depend on the physical growth of patients. This pathology in children with normal body weight or with a body weight deficit often remains undiagnosed.

Показатели физического развития детей с целиакией

Актуальность. Учитывая клинический полиморфизм целиакии, заболевание нередко в течение нескольких лет остается недиагностированным, что приводит к развитию серьезных изменений нутритивного статуса и задержки роста. Цель исследования: оценить физическое развитие детей и подростков на основании комплексного анализа антропометрических показателей в периоде клинической манифестации целиакии. Материалы и методы. Проанализированы результаты обследования 59 детей и подростков в возрасте от 6 месяцев до 18 лет с верифицированным диагнозом «целиакия». Антропометрические измерения проводились утром по общепринятым методикам. Данные антропометрических измерений детей оценивались по региональным стандартам. Рассчитывалось отклонение показателя длины тела относительно возраста (SDS длины тела), массы тела относительно длины тела (SDS массы тела). Статистическая обработка включала подсчет среднего арифметического значения каждого из показателей (М), среднего квад­ратичного отклонения (s), средней ошибки среднеарифметической (m), достоверности различий средних величин по t-критерию Стьюдента (р < 0,05). Результаты. Показатели физического развития детей с целиакией существенно отличались в зависимости от возраста верификации диагноза и продолжительности латентного периода заболевания. В структуре клинических проявлений у больных в остром периоде целиакии на первом месте находится задержка физического развития — 84,7 % человек. При этом в 76,3 % детей зарегистрирован дефицит массы тела: I степени — у 71,1%, II степени — у 22,2% и III степени — у 6,7 % случаев. Задержка роста установлена у 52,35 % детей: соматогенный нанизм обнаружен у 10,1 % больных, а низкорослость — у 42,3 % детей. Оценка стадии атрофии в соответствии с классификацией Marsh-Oberhuber показала, что у детей с более выраженной формой дефицита массы тела диагностирован тип Marsh 3C, тогда как при незначительном отставании показателей массы тела диагностированы типы Marsh 3A и Marsh 3В. Выводы. Антропометрические показатели пациентов с целиакией находятся в обратной зависимости от длительности латентного периода и возраста диагностики заболевания. У детей раннего возраста дефицит массы тела преобладает над задержкой роста, тогда как у старших детей отмечается замедление темпов роста с формированием низкорослости и соматогенного нанизма.

Comprehensive support of health care of children of senior preschool age in a preschool educational organization

Introduction. The relevance of the problem of health care of older preschool children is explained by the fact that statistical data indicate an annual decline in the health index of preschool children. The World Health Organization notes that the number of healthy preschoolers has decreased by 5 times and is only about 10% of the contingent of children, the prevalence of functional disorders reaches more than 70%, chronic diseases – 50%, physiological immaturity – 60%, more than 20% of children have a body weight deficit. Therefore social and pedagogical importance of preserving the health of the child increases in the modern conditions of development of preschool education. The purpose of the study is to organize a comprehensive health-saving support for children of senior preschool age through a specially developed and implemented technology. Materials and methods. The experimental study was conducted on the basis of the Municipal state preschool Educational Institution Kindergarten no. 125. (Russia, Yekaterinburg). The study sample consisted of 106 children of senior preschool age. As research methods were used group theoretical (analysis, synthesis, generalization) and empirical (observation, diagnostic task «Our habits» O.V. Dubina, the questionnaire «Healthy person» I.I. Malozemovа, diagnostic methods «Parovozik» S.V. Veliyeva, analysis of disease incidence and physical health, experiment) techniques, methods of data processing. The Student's t-test was used for statistical comparison of the results. Results of the study. The formation of health-saving competence of preschool children, a conscious attitude to their own health was carried out systematically, consistently and purposefully through specially designed blocks of joint activity of the subjects of the educational process of health-saving technologies for older preschool children, which were used in a complex on the basis of an individually differentiated approach. The obtained values of the t-criterion at the significance level p < 0.06 indicate a positive effect of the developed technology on the effectiveness of all health-saving criteria for older preschool children. Discussion and conclusion. Children's health is the most important indicator of social well-being and the normal functioning of society. Psychophysiological and environmental overload, the weakening of the role of preschool educational institutions and the family today actualize the problem of preserving and strengthening the health of the younger generation.