The gene-expression profile of renal medulla in ISIAH rats with inherited stress-induced arterial hypertension

Metabolic pathways enriched with genes differentially expressed in ISIAH and WAG renal medulla. (XLS 41 kb

Social behavior and spatial orientation in rat strains with genetic predisposition to catatonia (GC) and stereotypes (PM)

Various psychopathologies, including schizophrenia, bipolar disorder and major depression, are associated with abnormalities in social behavior and learning. One of the syndromes that may also take place in these disorders is catatonia. Catatonia is a psychomotor syndrome in which motor excitement, stereotypy, stuporous state, including the phenomenon of “waxy flexibility” (catalepsy), can be observed. Rats with genetic catatonia (GC) and pendulum-like movements (PM) of the anterior half of the body have physiological and behavioral changes similar to those observed in schizophrenia and depression in humans and can be considered as incomplete experimental models of these pathologies. The social behavior of the GC and PM rats has not been previously studied, and the cognitive abilities of animals of these strains are also insufficiently studied. To determine whether the GC and PM rats have changes in social behavior and spatial learning, behavioral phenotyping was performed in the residentintruder test, three-chamber test, Barnes maze test. Some deviations in social behavior, such as increased offensive aggression in PM rats in the resident-intruder test, increased or decreased social interactions depending on the environment in different tests in GC, were shown. In addition, principal component analysis revealed a negative association between catatonic freezing and the socialization index in the three-chamber test. Decreased locomotor activity of GС rats can adversely affect the performance of tasks on spatial memory. It has been shown that PM rats do not use a spatial strategy in the Barnes maze, which may indicate impairment of learning and spatial memory

Expression of catecholaminergic genes in the midbrain and prepulse inhibition in rats with a genetic catatonia

The GC rat strain (from the words "genetic" and "catatonia") was created by selection for predisposition to passive-defensive reaction of catatonic freezing in response to stressing stimuli. Rats of the GC strain have previously demonstrated a number of biochemical and behavioral properties similar to those of patients with schizophrenia and depression. Prepulse inhibition (PPI) is widely explored as an important indicator, a decrease of which may be indicative of psychopathology, including schizophrenia. It has been established that the brain noradrenergic system influences the manifestation of PPI, in particular through the activation of central alpha-adrenoreceptors. Also known is the association between PPI and expression of catechol-O-methyltransferase. This study focuses on the reaction of prepulse inhibition in rats of the inbred GC strain, being considered as a hypothetical model of schizophrenia, as well as on the relation of prepulse inhibition to mRNA expression of tyrosine hydroxylase, catechol-O-methyltransferase, alpha1A- and alpha2Aadrenergic receptors in the midbrain of GC rats. For the first time, a decrease of PPI in GC rats compared with WAG rats was shown, both with a prepulse power of 75 dB and at 85 dB, which may indicate a violation of filtration of sensorimotor information into the central nervous system in GC rats. Real-time PCR showed a decrease in mRNA level of Adra1A in intact rats with genetic catatonia when compared to control WAG rats. There was observed no correlation between the expression of mRNA of the Adra1A, Adra2A, Th, and Comt genes in the midbrain and the PPI reaction in GC rats. The reduction of prepulse inhibition in GC rats indicates functional similarity of this genetic model of schizophrenic psychopathology with a prototype. © AUTHORS, 2017.Russian Foundation for Basic Research, RFBR: 16­04­013250324­2016­0002This study was supported by the Russian Foundation for Basic Research, project 16­04­01325, and State Budgeted Project 0324­2016­0002

Effects of brain renin- angiotensin system inhibition in ISIAH rats with inherited stress-induced arterial hypertension

The renin-angiotensin system (RAS) is one of the main systems regulating arterial pressure and water-salt homeostasis of the body and is involved in the pathogenesis of cardiovascular diseases. Angiotensin peptides – products of enzymatic hydrolysis of angiotensinogen – can be synthesized not only in the blood stream, but also in tissues, including various regions  of the brain. Studies of local tissue RAS in the context of arterial hypertension have been conducted for a long time. It has been shown that a steady arterial pressure increase is often associated with changes in the functioning of the central (brain) RAS in various animal models of hypertensive disease and in humans. Nevertheless, it is still not completely clear whether these changes alone are sufficient for the formation of hypertensive status, and whether the components of the central RAS can be used as targets for the treatment of hypertensive disease. Effects of prolonged inhibition of the brain RAS on blood pressure and expression of RAS genes in brain and kidney tissues in ISIAH (inherited stress-induced arterial hypertension) rats were studied. Inhibition was performed using widely used pharmacological agents, losartan and benazepril. Osmotic minipumps were used to deliver drugs to the lateral ventricle of the brain. It was shown that prolonged inhibition of the central RAS, AT1 receptors in particular, can lead to a decrease in blood pressure and significant changes in the level of expression of brain RAS genes in ISIAH rats. The mRNA level of RAS genes in the kidney does not significantly change due to this inhibition. Thus, the participation of the central RAS in the pathogenesis and maintenance of hypertensive status during stress induced form of hypertensive disease in ISIAH rats was confirmed

Effects of pot fishing on the physical condition of snow crab (Chionoecetes opilio) and southern Tanner crab (Chionoecetes bairdi)

The effects of commercial fishing with crab pots on the physical condition of the snow crab (Chionoecetes opilio) and southern Tanner crab (C. bairdi) were investigated in the Bering Sea and in Russian waters of the Sea of Okhotsk. In crabs that were subjected to pot hauling, the presence of gas embolism and the deformation of gill lamellae were found in histopathological investigations. Crab vitality, which was characterized subjectively through observation of behavioral responses, depended on not only the number of pot hauls but also the time between hauls. Immediately after repeated pot hauls at short time intervals (≤3 days), we observed a rapid decline in vitality of crabs. When hauling intervals were increased to >3 days, the condition of crabs did not significantly change. After repeated pot hauls, concentration of the respiratory pigment hemocyanin ([Hc]) was often lower in the hemolymph of crabs than in the hemolymph of freshly caught animals. Our research indicated that changes in [Hc] in crabs after repeated pot hauls were caused by the effects of decompression and not by starvation of crabs in pots or exposure of crabs to air. We suggest that the decrease in [Hc] in hemolymph of snow and southern Tanner crabs was a response to the adverse effects of decompression and air-bubble disease. The decrease in [Hc] in affected crabs may be a result of mechanisms that regulate internal pressure in damaged gills to optimize respiratory circulation

Состояние новорожденных после конверсии эпидуральной анальгезии в анестезию при кесаревом сечении: проспективное рандомизированное исследование

АКТУАЛЬНОСТЬ: При проведении эпидуральной анальгезии (ЭА) в родах в случае необходимости оперативного родоразрешения встает вопрос о выборе дальнейшей тактики регионарной анестезии. В статье рассмотрены особенности влияния местных анестетиков на состояние новорожденного при проведении конверсии ЭА в анестезию при необходимости выполнения операции кесарева сечения в зависимости от используемого местного анестетика. ЦЕЛЬ ИССЛЕДОВАНИЯ: Оценить состояние новорожденного при проведении конверсии ЭА в родах через естественные родовые пути в анестезию при кесаревом сечении в зависимости от применяемого местного анестетика. МАТЕРИАЛЫ И МЕТОДЫ: Проведено проспективное рандомизированное исследование 143 детей, рожденных от матерей, которым проводили конверсию ЭА в анестезию для оперативного родоразрешения методом кесарева сечения. В зависимости от используемого местного анестетика пациенток распределили на три группы, в 1-й группе в эпидуральное пространство вводили 20,0 мл 2 % раствора лидокаина в комбинации с 0,1 мг эпинефрина, во 2-й группе — 20,0 мл 0,5 % раствора бупивакаина, в 3-й — 20,0 мл 0,75 % раствора ропивакаина. Оценку состояния новорожденных проводили по шкале Апгар на 1-й и 5-й минутах жизни и по шкале NACS в первые 15 мин, через 2, 24 и 72 ч после рождения. РЕЗУЛЬТАТЫ: Оценка новорожденных по шкале Апгар независимо от применяемого местного анестетика при эпидуральной анестезии на 1-й и 5-й минутах соответствовала 7 баллам и более (р > 0,05). Психоневрологическое состояние новорожденных при оценке по шкале NACS статистически значимо не различалось во всех группах и на всех этапах исследования. Внутри каждой группы между этапами исследования средние значения оценок по NACS статистически значимо увеличивались по сравнению с предыдущим. ВЫВОДЫ: Конверсия ЭА в родах через естественные родовые пути в анестезию при кесаревом сечении безопасна для плода и новорожденного при использовании 20,0 мл 2 % раствора лидокаина в комбинации с 0,1 мг эпинефрина или 20,0 мл 0,5 % раствора бупивакаина либо 0,75 % раствора ропивакаина в объеме 20,0 мл

A new method of etiopathogenetic treatment of patients with influenza

Purpose: to develop an effective and safe method for the etiopathogenetic treatment of influenza patients, aimed at increasing the effectiveness of the existing standard treatment using the antiviral drug oseltamivir.Materials and methods: 150 patients with a verified diagnosis of influenza were taken under observation. All of the participants were divided by randomization into two groups (n1 = 77, n2 = 73) which had the same initial clinical and laboratory characteristics. I group’s patients received standard antiviral therapy using oseltamivir. Patients of the II group at the same time as oseltamivir additionally received an aqueous solution of rehydron for 5 days. All patients underwent determination of the acidity of the mucous membrane of the oropharynx immediately before the start of antiviral therapy and immediately after its completion.Results: patients additionally receiving rehydron had a more rapid leveling of the main symptoms of influenza and a decrease in the frequency of its complications compared with people who received only standard treatment.Conclusions: the developed method of etiopathogenetic treatment of patients with influenza is characterized by a proven level of effectiveness, which is associated with the corrective effect of rehydron on the acid-base balance of the mucous membranes of the respiratory tract. The data obtained in the course of the study indicate not only the absolute scientific novelty of the developed method, but also its applied significance for practical public health

MICROSCOPIC DIAGNOSTIC FEATURES OF WHOLE, MILLED AND POWDERED PLANT MATERIAL “RHIZOMES OF COMMON TURMERIC”

Aim - the determination of microscopic diagnostic features of rhizomes of common turmeric (Curcuma longa L.), ginger family (Zingiberaceae). Materials and methods. We have studied whole, milled and powdered plant material of turmeric from different manufactures. The study was carried out with the use of the digital microscopes “Motic DM111” (Korea) and “Motic DM-39C-N9GO-A” (Korea). Results. It was determined that the microscopic diagnostic features of rhizomes of turmeric include the presence of cells with sinuous walls and structured content in the form of colored folding in the parenchyma; closed collateral vascular bundles lie scattered in the parenchyma, their conductive elements have narrow lumen. Vascular bundles contain pigment cells considerably smaller in comparison with the size of vessels. Pigment cells with drops of orange-red essential oil are also found in the parenchyma. In milled and powdered plant material, the fragments of all these elements are observed. In the fragments of powdered rhizomes of turmeric, numerous cells with yellow content are found; the parenchyma cells have less expressed folded structure. Fragments of vessels are found both in milled and powdered material. Conclusion. The results of this study were included in the section “Microscopy” of the project of pharmacopoeial monograph “Curcuma longa L. rhizomes”

Case report: Pompe disease in a child 5 month-old

The article describes the clinical report of a child 5 month-old with the Pompe disease. The main aspects of epidemiology, pathogenesis, clinical picture, diagnosis and treatment of Pompe disease are consideredВ статье описан клинический случай ребенка с младенческой формой болезни Помпе, выявленной в возрасте 5 месяцев жизни. Рассмотрены основные аспекты эпидемиологии, патогенеза, клиники, диагностики и лечения болезни Помп