Vol 69, No 7-8 (2014)
- Year: 2014
- Published: 20.07.2014
- Articles: 21
- URL: https://vestnikramn.spr-journal.ru/jour/issue/view/33
- DOI: https://doi.org/10.15690/vramn697-8
PHYSIOLOGY: CURRENT ISSUES
RESUSCITATION OF VITAL ACTIVITY AFTER COLD ARREST OF RESPIRATION BY PHYSIOLOGICAL METHODS WITHOUT REWARMING THE BODY
Abstract
The arrest of respiration during deep hypothermia means death, though at a low temperature the heart may rhythmically contract for 30–40 minutes more. The attempts of rewarming only shorten the time before the heart arrest. “The aim of the study” the attempts to develop the methods of stimulating the respiration and heart without rewarming the body. Calcium ions (Ca2+) are believed to accumulate in the nervous cells in cold. An excess of these ions inhibits the metabolism. Moreover it stimulates the cell proteases, which destroy the cell membranes. “Materials and methods” The work was carried out on wite rats 250-320 g in weight. We introduced disodium salt of ethylenediaminetetraacetic acid (EDTA) into the animals. The second method of blocking the mechanisms of the cold death was artificial respiration. “Results”EDTA reacts with calcium ions, decreases their quantity in the blood, and, consequently, in a complex manner in the cell protoplasm. Artificial respiration not only increases the flow of oxygen into an organism but also decreases the lowest temperature threshold of the cold death of an organism. “Conclusions” A decrease in the surviving threshold by 1.5-1.8oC is very important from the point of view of reanimation of an organism since to preserve life in the critical period of reanimation each 0.5oC are important. Prolongation of minimal frequency of heart contractions and maintaining a minimal arterial blood pressure in an overcooled organism given the body temperature of 11-12.5oC is a special problem of great interest associated with many physiological and biological parameters.
NEUROSIS AND GENETIC THEORY OF ETIOLOGY AND PATHOGENESIS OF ULCER DISEASE
Abstract
INTERSTITIAL PACEMAKER CELLS
Abstract
THE IMPACT OF IMMUNOACTIVE DRUGS ON PASSIVE AVOIDANCE RESPONSE
Abstract
IMMUNE DYSFUNCTION AND COGNITIVE DEFICIT IN STRESS AND PHYSIOLOGICAL AGING. PART II: NEW APPROACHES TO COGNITIVE DISORDER PREVENTION AND TREATMENT
Abstract
MICROBIOLOGY: CURRENT ISSUES
SEROTYPE DIVERSITY AND ANTIMICROBIAL RESISTANCE OF STREPTOCOCCUS PNEUMONIAE
Abstract
5 years of age. The severity of pneumococcal infections varies from self-limiting mucosal infections, including acute otitis media, sinusitis, and noninvasive pneumonia, to life-threatening invasive disease like bacteremia and meningitis. A high incidence of pneumococcal infections is combined with a constantly growing antibiotic resistance of this pathogen. The growing resistance is thought to be associated with misuse of antibiotics and emerging of resistant clones that may spread throughout the entire population. Pneumococcal polysaccharide conjugate vaccines (PCV) contain an assortment of pneumococcal capsular polysaccharides (from 7 to 13) that produce serotype-specific protective antibodies. Since early 2000’s, the introduction of PCV into national immunization programs has been shown to substantially decrease the incidence of invasive pneumococcal disease and pneumococcal carriage associated with vaccine-type pneumococci in many countries. In 2014, PCV vaccination was included in the Russian national calendar of prophylactic vaccination. The present article reviews the current literature on serotype prevalence, antibiotic susceptibility, and PCV effect on the evolution of pneumococcus.
MICROEVOLUTION OF CHOLERA AGENT IN THE MODERN PERIOD
Abstract
PEDIATRICS: CURRENT ISSUES
ENDOGENOUS INTOXICATION AND BIOCHEMICAL PROTECTION IN CHILDREN WITH CELIAC DISEASE: STATE ASSESMENT AND CORRELATION-REGRESSION ANALYSIS
Abstract
interaction in children with celiac disease. Materials and methods: 81 children aged from 1 to 16 years with celiac disease were examined in acute and remission periods. In erythrocytes, blood serum and urine we determined low and moderate molecular weight substances (LMMWS), oligopeptides (OP); in erythrocytes — the value of erythrocyte mechanical hemolysis (MH), malondialdehyde (MDA) content, the activity of glutathione reductase (GR) and superoxide dismutase (SOD); in blood serum — ceruloplasmin (CP) level, alcohol dehydrogenase (ADH) activity; in erythrocytes and blood serum — glutathione transferase (GT), and calculated intoxication index (II). Results: In children with celiac disease in acute and remission periods LMMWS, OP, II levels in blood were statistically significantly high, while LMMWS level in urine was low. In both periods MH activity was high (p <0.001), and GSR (p <0.001) and SOD (p <0.01) levels were low. We revealed the correlation between MDA and II (r =0.67; p =0.006), erythrocyte LMMWS and SOD (r = -0.61; p =0.015), erythrocyte LMMWS and ADH (r =0.62; p =0.006), between GT and OP in urine (r = -0.31; p =0.026), GT and MDA (r =0.68; p =0.000), GT and MH (r = -0.46; p =0.004), between MDA and CP (r =0.57; p =0.002) that made it possible to develop the models of dependence of the parameters in relation to each other. Conclusion: In celiac disease there is endogenous intoxication. The changes of the first and the second phases of biotransformation, antioxidant protection is an essential factor of the disease pathogenesis, since they have an effect on endogenous intoxication formation that should be taken into consideration in therapy.
FEATURES OF PATIENTS WITH THE MULTIPLE SENSITIZATION DIAGNOSTICS BEFORE ALLERGEN SPECIFIC IMMUNOTHERAPY WILL BE SET AND THE ASSESSMENT OF THE THERAPY RESULTS WITH THE LABORATORY METHODS
Abstract
cost of in vitro researches there is a need of diagnostic test systems development and optimization. Aim: To make the assessment of atopy diagnostics efficiency in children with a multiple allergy and the analysis of specific immunotherapy (ASIT) influence on immune markers level in serum for a choice of the most significant predictive indicator. Patients and methods: 457 children (mean age 8,9±4,3 years) with pollinosis symptoms that prevalence in spring period were tested with birch pollen allergens extract by detecting allergen-specific immunoglobulin E (sIgE) levels. Than patient witch showed positive sIgE level (243 children) were tested with expanded set of plant allergens (birch, alder, hazel, oak pollen, allergens of Rosaceae family and carrot) and set of birch pollen allergocomponents (Bet v1, Bet v2, Bet v4, Bet v6). From them 32 patients were treated with allergenspecific immunotherapy. Immunological assays were performed by indirect immunofluorescent method on ImmunoCAP250 (Sweden). Results: It was shown that birch allergens sIgE antibodies detection in patients with pollinosis allows to estimate sensitization degree to allergens of related trees and could predict their quantitative values. The oak allergens sIgE level is a good predictive marker of sIgE level to food plant derived allergens. And apple allergens sIgE concentration is closely assotiated with sIgE to fruit allergens of Rosacea family. Detection of sensitization to minor allergens in patient influences on therapy efficacy prognosis. Conclusion: sIgE detection to limited number of allergens (birch-oak-apple) is effective to sIgE value assessment in patient with allergy to plant causing allergens cross reactivity. Component-divided in vitro diagnostics directed on reveal of sensitization caused by minor allergens, is actual at the answer a question about ASIT validity and its efficiency. Component-divided in vitro diagnostics directed on reveal of sensitization caused by minor allergens, is actual at the answer a question about ASIT validity and its efficiency. Significant results of the therapy are shown after double course ASIT that also allows to reduce considerably production of sIgE antibodies to significant allergens, and cross reacting plant food allergens.
OPEN, NON-COMPARATIVE PHASE III CLINICAL STUDY TO EVALUATE THE EFFICACY AND SAFETY OF SAPROPTERIN IN PATIENTS WITH PHENYLKETONURIA AND HYPERPHENYLALANINEMIA
Abstract
phenylalanine (Phe) and tyrosine. The main criterion for diagnosis of PKU is high blood Phe level determined during neonatal screening. In case where PKU patient is responsive to tetrahydrobiopterin treatment, sapropterin restores the impaired activity of the enzyme phenylalanine hydroxylase, resulting in the stimulation of normal Phe metabolism and thereby enhancing patient tolerance to natural products. Aim: The present open, noncomparative clinical study was initiated to assess the degree and frequency of response after 8-day sapropterin administration and assess the safety of 6-week sapropterin treatment in patients with PKU and hyperphenylalaninemia. Patients and methods: The study enrolled 90 patients with PKU. The criterion of response to 8-day sapropterin therapy was the reduction of Phe blood levels ≥30% compared with the baseline value. Results: Positive response to treatment was observed in 30 (33.3%) patients (95% CI 23.7–44.1). The mean percentage change in Phe blood levels after the 8-day response test period compared to Phe levels prior to dosing was 14.1±28.4% in the overall subject population (95% CI 8.2–20.1) and 44.3±15.1% in the subpopulation of patients with a positive response (95% CI 38.6–49.9). During the study, adverse events were reported in 24 (26.7%) patients in the overall population in 16 (53.3%) patients in the subpopulation who had a response. Conclusion: The study results confirmed the efficacy and safety of sapropterin therapy in patients with PKU, which is consistent with international clinical trials data.
PALIVIZUMAB: FOUR SEASONS IN RUSSIA
Abstract
MITOCHONDRIAL DYSFUNCTION IN CHILDREN WITH HEPATIC FORMS OF GLYCOGEN STORAGE DISEASE
Abstract
nicotinamideadenin-Н-dehydrogenase (NADH-D) and lactatdehydrogenase (LDH) was measured using the quantitative cytochemical method in the peripheral lymphocytes. Results: It was revealed decrease of SDH- (р <0.001) and GPDH-activities (р <0.001), along with increase of the NADH-D activity (р <0.05) in all patients with GSD, (SDH / NADH-D) index was decreased (р <0.001). LDH activity was increased in groups 1 (р <0.05) and 3 (p <0.01), compared with comparison group. The most pronounced intracellular enzymes activity deviations were observed in children with GSD type I, that correspond to more severe clinical form of GSD. It was found strong correlation between intracellular enzymes activity and both hepatomegaly level (R =0.867) and metabolic acidosis severity (R =0.987). Conclusion: Our investigation revealed features of mitochondrial dysfunction in children with GSD, depending on the GSD type. Activities of lymphocytes enzymes correlates with the main disease severity parameters and can be used as an additional diagnostic criteria in children with hepatic form of GSD.
PHARMACOLOGY: CURRENT ISSUES
NEW APPROACHES IN THE REGULATION OF BLOOD PHAGOCYTES AND REDUCTION IN THE FORMATION OF OXYGEN RADICALS IN PATIENTS WITH HEART FAILURE
Abstract
and on SK-N-SH neuron necrosis. Materials and methods: The generation of superoxide anion (O2-•) were recorded on whole blood samples (50–100 μl). Change lucigenin-dependent hemiluminescence determined on a hemi-luminometer «Biotoks-7». As a stimulator of the phagocyte phorbol ester (PMA, 1 μm) was used. Necrosis of neurons induced by hydrogen peroxide was determined by fluorescence of propidium iodit. Results: Blood phagocytes of heart failure patients are initially pre-activated (primed). These cells spontaneous generated oxygen radicals. Actovegin dosadependent decreased radicals level and radical induced by PMA (1 μm). After PMA maximal inhibitory effect of actovegin observed in doses higher than 2–3 mg/ml. The impact of actovegin on the viability of human SK-N-SH neurons in the presence hydrogen peroxide (100 μm) was studied in
vitro. Under these conditions hydrogen peroxide triggered radical-dependent neurons necrosis Actovegin dosa-dependent decreased of neuron death.
Conclusion: Actovegin inhibits spontaneous and induced formation of reactive oxygen species generated by blood phagocytes of patients with heart failure. Actovegin suppressed necrosis of human SK-N-SH neuroblastoma cells caused by hydrogen peroxide. It is assumed that actovegin protects cells of various organs and tissues, including blood cells and neurons that die as a result of ischemia and inflammation by reducing levels of reactive oxygen species.
SHORT MESSAGES
GRADIENT OF MORTALITY OF PERSONS AGED 40–59 IN REGIONS OF THE RUSSIAN FEDERATION
Abstract
COMPARATIVE ANALYSIS AND CLINICAL EXPERIENCE WITH OSTEOPLASTIC MATERIALS MATERIALS BASED ON NON-DEMINERALIZED BONE COLLAGEN AND ARTIFICIAL HYDROXYLAPATITE AT THE CLOSE OF BONE DEFECTS IN AMBULATORY SURGICAL DENTISTRY
Abstract
MORTALITY OF WORKING AGE POPULATION IN RUSSIA AND INDUSRIAL COUNTRIES IN EUROPE: TRENDS OF THE LAST TWO DECADES
Abstract
FRACTURE HEALING UNDER INTRAMEDULLARY INSERTION OF WIRES WITH HYDROXYAPATITE COATING
Abstract
ROLE OF DYSLIPIDEMIA IN PATHOGENESIS OF VASCULAR EVENTS AMONG ARCTIC CIRCLE POPULATION
Abstract
STIMULATION OF PELVIC FRACTURE HEALING BY LOCAL INJECTION OF AUTOLOGOUS PLASMA IN COMBINATION WITH METABOLICALLY ACTIVE SUBSTANCES THAT HAVE AN ANTIOXIDANT AND ANTIHYPOXIC EFFECT
Abstract
plasma in combination with metabolically active substances such as L-ascorbic acid and D-glucose for management of pelvic fractures.
Material and methods: The experiment was carried out on twenty-six mongrel dog of both sexes aged 1.5±0.09 years and with body weight
of 17±0.5kg. Transverse osteotomy was performed in the acetabulum (n =20) and in the ilium body (n =6).The fractures were stabilized with external fixators. On days two through 5 after the operation all dogs had intraarticular or intraosseous injections of the saline solution throughout 24 hours in the dose of 0.4 ml per day. Experimental animals were additionally injected once a day with 1 ml of a composition consisting of the ascorbic acid and glucose. The external apparatuses were dismounted on day 21 after the operation. The animals for histological study were euthanized on day
14 and 42 after the operation. The study used radiographic and histological methods of study as well as the method of radiographic electron probe
microanalysis. Results: The control animals that had either intraosseous or intraarticular saline injections alone had fibro-cartilaginous union of the
pelvic fragments. They developed bone deformity due to secondary displacement upon apparatus removal. The experimental animals had primary bone union on day 14. The bone was consolidated after the removal of the apparatus. Conclusion: Autologous blood plasma in combination with active substances of ascorbic acid and glucose had a marked stimulating effect on pelvic fracture healing if applied locally in the posttraumatic period. The method of reparative osteogenesis stimulation that was developed is low traumatic. It does not hinder early functional loading and allows control of reparative process basing on the biological principles of tissue regeneration.
THE PROBLEMS OF EXPERTISE OF BIOMEDICAL PROJECTS AND ASSIGNING THEM STATUS OF BREAKTHROUGH AND WORLD-CLASS
Abstract
complicates the work of the experts on the selection of projects for priority funding. The approaches to the identification of perspective directions
of research used in the world were examined. An attempt was made of formalization of the concepts of «breakthrough research» and «world level
research» in relation to the Russian biomedical projects. The rationale for information support of expert decision-making about the prospects of development of individual areas of research in biomedicine is outlined.