214 research outputs found

    Drug Policy in Hungary: Current Trends and Future Prospects

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    The authors consider the theoretical and applied problems of preventing illicit traffic in drugs and psychotropic substances in Hungary in the legal and criminological aspects. The relevance of the study is determined by the fact that the Hungary's third drug strategy expires in 2020 (2013-2020), so a new strategy needs to be developed, but it is not yet known what guidelines it will have, what priorities will be offered to set in it.The study was conducted with a view to considering the legal framework for the prevention of illicit traffic of drugs and psychotropic substances and the problem of its improvement in Hungary. To achieve this goal, the authors analysed statistics on drug use, types and quantity of drugs seized by law enforcement agencies for the last five years. The authors give a description of the drug situation, territorial features of drug use and a multilevel system of measures to counter illegal traffic in drugs and psychotropic substances at the national level. The authors pay special attention to the age and gender characteristics of drug use, which makes it possible to identify the most vulnerable groups, which should be supported by state preventive programs. The authors also analysed data on mortality from drug use and concluded that from 2010 onwards methadone and other non-opiate drugs predominated in death.Based on the results of the study, current trends in drug use in Hungary were summarized. The results obtained are important for the development of an anti-drug strategy and the improvement of legislation, as well as for the prevention of law enforcement agencies, both Hungary and other European countries

    Chronic Methamphetamine Administration Causes Differential Regulation of Transcription Factors in the Rat Midbrain

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    Methamphetamine (METH) is an addictive and neurotoxic psychostimulant widely abused in the USA and throughout the world. When administered in large doses, METH can cause depletion of striatal dopamine terminals, with preservation of midbrain dopaminergic neurons. Because alterations in the expression of transcription factors that regulate the development of dopaminergic neurons might be involved in protecting these neurons after toxic insults, we tested the possibility that their expression might be affected by toxic doses of METH in the adult brain. Male Sprague-Dawley rats pretreated with saline or increasing doses of METH were challenged with toxic doses of the drug and euthanized two weeks later. Animals that received toxic METH challenges showed decreases in dopamine levels and reductions in tyrosine hydroxylase protein concentration in the striatum. METH pretreatment protected against loss of striatal dopamine and tyrosine hydroxylase. In contrast, METH challenges caused decreases in dopamine transporters in both saline- and METH-pretreated animals. Interestingly, METH challenges elicited increases in dopamine transporter mRNA levels in the midbrain in the presence but not in the absence of METH pretreatment. Moreover, toxic METH doses caused decreases in the expression of the dopamine developmental factors, Shh, Lmx1b, and Nurr1, but not in the levels of Otx2 and Pitx3, in saline-pretreated rats. METH pretreatment followed by METH challenges also decreased Nurr1 but increased Otx2 and Pitx3 expression in the midbrain. These findings suggest that, in adult animals, toxic doses of METH can differentially influence the expression of transcription factors involved in the developmental regulation of dopamine neurons. The combined increases in Otx2 and Pitx3 expression after METH preconditioning might represent, in part, some of the mechanisms that served to protect against METH-induced striatal dopamine depletion observed after METH preconditioning

    Assessment of the Action of Сold Helium Plasma on Metabolic and Physico-chemical Parameters of Rats Blood

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    The aim of this paper was to study the effect of cold helium plasma on the parameters of oxidative metabolism and crystallogenic activity of rat blood plasma. Material and methods: The experiment was performed on 20 male Wistar rats divided into control (n=10, without manipulation) and main (n=10) groups. Animals of the main group underwent a course, which included 10 daily procedures for processing a pre-epilated area of the back skin (area – 10% of the body surface) with a stream of helium cold plasma (duration – 1 min.). Upon completion of the course, the intensity of lipid peroxidation, total antioxidant activity, malon dialdehyde level and superoxide dismutase activity were determined in the blood of all rats, and crystallogenic properties were evaluated. The conjugation of potential shifts was carried out by correlation analysis. Results: It was found that cold helium plasma transforms oxidative metabolism of blood plasma and its crystallogenic properties, acting as an agent with moderate antioxidant properties and a stimulant of dehydration structuring. In this case, the antioxidant effect is realized, among other things, due to the activation of superoxide dismutase

    Результаты аттестации студентов педиатрического факультета по дисциплине "Инфекционные болезни" при переходе на новый стандарт обучения

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    Данная статья посвящена изучению изменений учебных достижений студентов педиатрического факультета при переходе на стандарт нового поколения — федеральный государственный образовательный стандарт (ФГОС). Исследование показало, что перенос дисциплины на 7 семестр с 10 не привел к снижению учебных достижений студентов, остался стабильно высоким, и даже демонстрирует некую тенденцию к повышению

    Two-stage evolution of mantle peridotites from the Stalemate Fracture Zone, northwestern Pacific

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    This paper reports the results of a mineralogical study of 14 mantle peridotite samples dredged in 2009 from the eastern slope of the northwestern segment of the Stalemate Ridge in the northwestern Pacific during cruise SO201-KALMAR Leg 1b of the R/V Sonne. The sample collection included four serpentinized and silicified dunites and ten variably serpentinized lherzolites. The compositions of primary minerals (clinopyroxene, orthopyroxene, and spinel) change systematically from the lherzolites to dunites. Spinel from the lherzolites shows higher Mg# and lower Cr# values (0.65-0.68 and 0.26-0.33, respectively) compared with spinel from the dunites (Mg# = 0.56-0.64 and Cr# = 0.38-0.43). Clinopyroxene from the lherzolites is less magnesian (Mg# = 91.7-92.4) than clinopyroxene from dunite sample DR37-3 (Mg# = 93.7). Based on the obtained data, it was concluded that the lherzolites of the Stalemate Fracture Zone were derived by 10-12% near-fractional melting of a DMM-type depleted mantle reservoir beneath the Kula-Pacific spreading center. The dunites were produced by interaction of residual lherzolites with sodium- and titaniumrich melt and are probably fragments of a network of dunite channels in the shallow mantle. The moderately depleted composition of minerals clearly distinguishes the lherzolites from the strongly depleted peridotites of the East Pacific Rise and indicates the existence of slow-spreading mid-ocean ridges in the Pacific Ocean during the Cretaceous-Paleogene

    Mechanisms of reabsorption of ions in the Henle’s loop and furosemide pharmacodynamics

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    The article explains mechanisms of reabsorption of ions in the thick segment of the ascending limb of Henle’s loop. The principle of action of one of the key representatives of "loop" diuretics, Furosemide, is examinedВ статье дается объяснение механизмов реабсорбции ионов в толстой части восходящего колена петли Генле. Рассматривается принцип действия одного из ключевых представителей «петлевых» диуретиков – фуросемида

    Methamphetamine-Induced Dopamine-Independent Alterations in Striatal Gene Expression in the 6-Hydroxydopamine Hemiparkinsonian Rats

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    Unilateral injections of 6-hydroxydopamine into the medial forebrain bundle are used extensively as a model of Parkinson's disease. The present experiments sought to identify genes that were affected in the dopamine (DA)–denervated striatum after 6-hydroxydopamine-induced destruction of the nigrostriatal dopaminergic pathway in the rat. We also examined whether a single injection of methamphetamine (METH) (2.5 mg/kg) known to cause changes in gene expression in the normally DA-innervated striatum could still influence striatal gene expression in the absence of DA. Unilateral injections of 6-hydroxydopamine into the medial forebrain bundle resulted in METH-induced rotational behaviors ipsilateral to the lesioned side and total striatal DA depletion on the lesioned side. This injection also caused decrease in striatal serotonin (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) levels. DA depletion was associated with increases in 5-HIAA/5-HT ratios that were potentiated by the METH injection. Microarray analyses revealed changes (± 1.7-fold, p<0.025) in the expression of 67 genes on the lesioned side in comparison to the intact side of the saline-treated hemiparkinsonian animals. These include follistatin, neuromedin U, and tachykinin 2 which were up-regulated. METH administration caused increases in the expression of c-fos, Egr1, and Nor-1 on the intact side. On the DA-depleted side, METH administration also increased the expression of 61 genes including Pdgf-d and Cox-2. There were METH-induced changes in 16 genes that were common in the DA-innervated and DA-depleted sides. These include c-fos and Nor-1 which show greater changes on the normal DA side. Thus, the present study documents, for the first time, that METH mediated DA-independent changes in the levels of transcripts of several genes in the DA-denervated striatum. Our results also implicate 5-HT as a potential player in these METH-induced alterations in gene expression because the METH injection also caused significant increases in 5-HIAA/5-HT ratios on the DA-depleted side

    Influence of the type of feeding on the health status, physical development of children under 1 year of age

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    The purpose of the study – to assess the impact of natural and artificial feeding on the health status of children in the first year of life.Цель исследования – оценить влияние естественного и искусственного видов вскармливания на состояние здоровья детей первого года жизни

    Deficit of circulating stem – progenitor cells in opiate addiction: a pilot study

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    A substantial literature describes the capacity of all addictive drugs to slow cell growth and potentiate apoptosis. Flow cytometry was used as a means to compare two lineages of circulating progenitor cells in addicted patients. Buprenorphine treated opiate addicts were compared with medical patients. Peripheral venous blood CD34+ CD45+ double positive cells were counted as haemopoietic stem cells (HSC's), and CD34+ KDR+ (VEGFR2+) cells were taken as endothelial progenitor cells (EPC's). 10 opiate dependent patients with substance use disorder (SUD) and 11 non-addicted (N-SUD) were studied. The ages were (mean + S.D.) 36.2 + 8.6 and 56.4 + 18.6 respectively (P <0.01). HSC's were not different in the SUD (2.38 + 1.09 Vs. 3.40 + 4.56 cells/mcl). EPC's were however significantly lower in the SUD (0.09 + 0.14 Vs. 0.26 + 0.20 cells/mcl; No. > 0.15, OR = 0.09, 95% C.I. 0.01–0.97), a finding of some interest given the substantially older age of the N-SUD group. These laboratory data are thus consistent with clinical data suggesting accelerated ageing in addicted humans and implicate the important stem cell pool in both addiction toxicology and ageing. They carry important policy implications for understanding the fundamental toxicology of addiction, and suggest that the toxicity both of addiction itself and of indefinite agonist maintenance therapies may have been seriously underestimated
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