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  • Authors: Lawrence A. Kapustka; Nadezhda Goncharova; G. Arapis;

    Discussions regarding the role of ecotoxicology in Ecological Risk Assessment were held in an open forum.

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  • Authors: Anatoly A. Kilbas; Hari M. Srivastava; Juan J. Trujillo;

    The paper is devoted to some aspects of differential equations of fractional order and their applications. It is explained a fact that the subject of fractional differential equations is an emergent topic as a very useful tool to model many anomalous phenomena in nature and in the theory of complexity systems. Various fractional integral and fractional derivative are presented together with some of their properties. Simple partial differential equations are discussed in connection with anomalous diffusion. A new model, useful in both sub-diffusion and super-fast diffusion processes, is introduced. Such a model, generalizing the clasical problem associated with the heat equation, involves the generalized Liouville fractional derivative over the time variable. The one-dimensional case is studied and explicitely solved, and its generalization to the multi-dimensional case is discussed.

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  • Authors: Pavel Marozik; Irma Mosse; Sergey Melnov; Carmel Mothersill; +2 Authors
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  • Authors: C R Gordon; R S Merchant; Anthony Marmarou; C D Rice; +2 Authors

    We investigated the effects of murine recombinant interleukin-1 (rIL-1, Du Pont) in vivo in the normal rat brain and here report both local and systemic effects of centrally administered rIL-1. Normal rats were given single or multiple atraumatic doses of either rIL-1 or and equal volume (5 microliters) of vehicle for control comparison. All dosages of intraparenchymal rIL-1 produced a uniform a hyperthermic response and concomitant lethargy. There was a related anorexia beyond fever duration. Histologic examination of intraparenchymal injection tracts revealed fibrillary whorls of oedema and a cellular infiltrate surrounding the rIL-1 tract, while similar changes were less prominent in control injection tracts. Repeated high doses of rIL-1 produced significantly higher concentrations of brain water as measured by the gravimetric technique. We conclude that rIL-1 is not only a potent chemoattractant, but is also an edigematic agent when administered in high doses.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Prasad, Manya; Krishnan, Pudukode R; Sequeira, Reginald; Al‐Roomi, Khaldoon;

    Background Status epilepticus is a medical emergency associated with significant mortality and morbidity that requires immediate and effective treatment. Objectives (1) To determine whether a particular anticonvulsant is more effective or safer to use in status epilepticus compared to another and compared to placebo. (2) To delineate reasons for disagreement in the literature regarding recommended treatment regimens and to highlight areas for future research. Search methods For the latest update of this review, the following electronic databases were searched on 15/08/2013: the Cochrane Epilepsy Group's Specialized Register, CENTRAL The Cochrane Library July 2013, Issue 7, and MEDLINE (Ovid) 1946 to 15/08/2013. Selection criteria Randomised controlled trials of participants with premonitory, early, established or refractory status epilepticus using a truly random or quasi-random allocation of treatments were included. Data collection and analysis Two review authors independently selected trials for inclusion, assessed trial quality and extracted data. Main results Eighteen studies with 2755 participants were included. Few studies used the same interventions. Intravenous diazepam was better than placebo in reducing the risk of non-cessation of seizures (risk ratio (RR) 0.73, 95% confidence interval (CI) 0.57 to 0.92), requirement for ventilatory support (RR 0.39, 95% CI 0.16 to 0.94), or continuation of status epilepticus requiring use of a different drug or general anaesthesia (RR 0.73, 95% CI 0.57 to 0.92). Intravenous lorazepam was better than placebo for risk of non-cessation of seizures (RR 0.52, 95% CI 0.38 to 0.71) and for risk of continuation of status epilepticus requiring a different drug or general anaesthesia (RR 0.52, 95% CI 0.38 to 0.71). Intravenous lorazepam was better than intravenous diazepam for reducing the risk of non-cessation of seizures (RR 0.64, 95% CI 0.45 to 0.90) and had a lower risk for continuation of status epilepticus requiring a different drug or general anaesthesia (RR 0.63, 95% CI 0.45 to 0.88). Intravenous lorazepam was better than intravenous phenytoin for risk of non-cessation of seizures (RR 0.62, 95% CI 0.45 to 0.86). Diazepam gel was better than placebo gel in reducing the risk of non-cessation of seizures (RR 0.43 95% CI 0.30 to 0.62) For pre-hospital treatment, intramuscular midazolam is at least as effective as (probably more effective than) intravenous lorazepam in control of seizures (RR1.16, 95% CI 1.06 to 1.27) and frequency of hospitalisation (RR 0.88, 95% CI 0.79 to 0.97) or intensive care admissions (RR 0.79, 95% CI 0.65 to 0.96). It was uncertain whether Intravenous valproate was better than intravenous phenytoin in reducing risk of non-cessation of seizures (RR 0.75, 95% CI 0.28 to 2.00). Both levetiracetam and lorazepam were equally effective in aborting seizures (RR 0.97, 95% CI 0.44 to 2.13). Results for other comparisons of anticonvulsant therapies were uncertain due to single studies with few participants. The body of randomised evidence to guide clinical decisions is small. It was uncertain whether any anticonvulsant therapy was better than another in terms of adverse effects, due to few studies and participants identified. The quality of the evidence from the included studies is not strong but appears acceptable. We were unable to make judgements for risk of bias domains incomplete outcome reporting (attrition bias) and selective outcome reporting (selection bias) due to unclear reporting by the study authors. Authors' conclusions Intravenous lorazepam is better than intravenous diazepam or intravenous phenytoin alone for cessation of seizures. Intravenous lorazepam also carries a lower risk of continuation of status epilepticus requiring a different drug or general anaesthesia compared with intravenous diazepam. Both intravenous lorazepam and diazepam are better than placebo for the same outcomes. For pre hospital management, midazolam IM seemed more effective than lorazepam IV for cessation of seizures, frequency of hospitalisation and ICU admissions however,it was unclear whether the risk of recurrence of seizures differed between treatments. The results of other comparisons of anticonvulsant therapies versus each other were also uncertain. Universally accepted definitions of premonitory, early, established and refractory status epilepticus are required. Diazepam gel was better than placebo gel in reducing the risk of non-cessation of seizures. Results for other comparisons of anticonvulsant therapies were uncertain due to single studies with few participants.

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    Europe PubMed Central
    Other literature type . 2014
    Data sources: PubMed Central
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    Other literature type . 2007
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    British Journal of Clinical Pharmacology
    Article . 2007
    License: Wiley Online Library User Agreement
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    https://doi.org/10.1002/146518...
    Part of book or chapter of book . 2005
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      Europe PubMed Central
      Other literature type . 2014
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      Europe PubMed Central
      Other literature type . 2007
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      British Journal of Clinical Pharmacology
      Article . 2007
      License: Wiley Online Library User Agreement
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      https://doi.org/10.1002/146518...
      Part of book or chapter of book . 2005
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  • Authors: Tamara Kukharchyk; Valery Khomich; Sergey Kakareka; Svetlana Utochkina;

    In the paper environmental problems connected with such dangerous chemicals as polychlorinated biphenyls (PCBs) are discussed. Sources of PCBs in Belarus, location of the main part of PCBs in cities and towns, as well as specificity of PCB discharges into environment are shown. The content of PCBs in urban soil of different functional zones is given. High level of soil pollution by PCBs in places of PCB-containing equipment installation and storage is revealed. The peculiarities of hot spots formation and spreading of PCBs beyond the places of PCB leakage are established. Pollution of bottom sediments of some aquatic ecosystems by PCBs is identified. The problems and perspectives of PCB monitoring in urban environment are discussed.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: A L, Kozyrskyj; G E, Hildes-Ripstein; S E, Longstaffe; J L, Wincott; +3 Authors

    Background Acute otitis media (AOM) is a common illness during childhood, for which antibiotics are frequently prescribed. Objectives To determine the effectiveness of a short course of antibiotics (less than seven days) in comparison to a long course of antibiotics (seven days or greater) for the treatment of AOM in children. Search methods We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2009, issue 4) which contains the Acute Respiratory Infections Group's Specialised Register, MEDLINE, EMBASE, MEDLINE In-Process & Other Non-Indexed Citations, CINAHL, BIOSIS Previews, OCLC Papers First and Proceedings First, Proquest Dissertations and Theses (inception to November 2009); International Pharmaceutical Abstracts, the NLM Gateway, ClinicalTrials.gov and Current Controlled Trials (inception to August 2008). Selection criteria Trials were included if they met the following criteria: participants aged one month to 18 years; clinical diagnosis of ear infection; no previous antimicrobial therapy; and randomisation to treatment with less than seven days versus seven days or more of antibiotics. Data collection and analysis The primary outcome of treatment failure was defined as the absence of clinical resolution, relapse or recurrence of AOM during one month following initiation of therapy. Treatment outcomes were extracted from individual studies and combined in the form of a summary odds ratio (OR). A summary OR of 1.0 indicates that the treatment failure rate following less than seven days of antibiotic treatment was similar to the failure rate following seven days or more of treatment. Main results This update included 49 trials containing 12,045 participants. Risk of treatment failure was higher with short courses of antibiotics (OR 1.34, 95% CI 1.15 to 1.55) at one month after initiation of therapy (21% failure with short-course treatment and 18% with long-course; absolute difference of 3% between groups). There were no differences found when examining treatment with ceftriaxone for less than seven days (30% failure in those receiving ceftriaxone and 27% in short-acting antibiotics administered for seven days or more) or azithromycin for less than seven days (18% failure in both those receiving azithromycin and short-acting antibiotics administered for seven days or more) with respect to risk of treatment failure at one month or less. Significant reductions in gastrointestinal adverse events were observed for treatment with short-acting antibiotics and azithromycin. Authors' conclusions Clinicians need to evaluate whether the minimal short-term benefit from longer treatment of antibiotics is worth exposing children to a longer course of antibiotics.

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    Europe PubMed Central
    Other literature type . 2010
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    https://doi.org/10.1002/146518...
    Part of book or chapter of book . 2000
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      Other literature type . 2010
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      https://doi.org/10.1002/146518...
      Part of book or chapter of book . 2000
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    Authors: Özdemir, Öner;

    Multifunctional mast cells (MC) have been recently reported as effectors in the human innate and even adaptive immune system, besides their known roles in allergic disorders. First in vivo observations in the 1950`s suggested their possible role as anti-tumor cells around certain solid tumors and questioned their interactions with tumor cells (Prior, 1953). Later, in vitro murine mast cell cytotoxicity (MCC) against murine tumor cells was described in 1981 (Henderson, 1981; Ghiara, 1985; Richards 1988). However, to the best of our knowledge, there is no reported data on in vitro human MCC against human tumor cells. Current in vivo observations and implications from human pathological specimens are also very controversial. Moreover, there is still difficulty in obtaining and maintaining human MCs in cultures since they have low expansion potential. These facts have hampered in vitro human MC studies up to the last decades of the 20th century. The recent use of methylcellulose media for in vitro human MC cultures increased the knowledge and data strongly supporting an increasing role of MC as effector elements of innate immunity (Leskinen, 2003; Marshall, 2004; Della Rovere, 2009; Ozdemir, 2007, 2011). Ambiguous and mounting evidence also indicates that MCs accumulate around tumors and could either promote or inhibit tumor growth, most likely depending on environmental conditions. Presently, believers in the inhibitory role of MCs assume them to be inhibitors of tumor development through their cytotoxic pro-necrolytic/-apoptotic granules (WagelieSteffen, 1998; Leskinen, 2003; Kataoka, 2004; Pardo, 2007; Heikkila, 2008). In fact, the MC has been long believed to have natural cytotoxicity against murine TNF-α sensitive tumor cells in the long term incubations (>24h), by either TNF-α dependent or independent pathways. TNF-α independent pathways like cathepsin G, NO, serine proteases, peroxidases, H2O2 etc. were also assumed to contribute to MCC (Henderson, 1981; Ghiara, 1985; Richards 1988). Moreover, in vitro murine MCC has been well demonstrated against TNF-α-sensitive murine WEHI-164 and L929 tumor cells. Murine MCC seems to be different from natural killer (NK) cytotoxicity by means of acting in long term against unusual targets such as WEHI-164 and L929 with different mediators like peroxidases (Henderson, 1981; Ghiara, 1985; Richards 1988). Moreover, the last decade of research demonstrates that MC granules have pro-apoptotic characteristics (Wagelie-Steffen, 1998; Leskinen, 2003; Kataoka, 2004; Pardo, 2007; Heikkila, 2008). Chymase was shown to induce apoptosis, and apoptotic

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    Part of book or chapter of book . 2011
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    https://www.intechopen.com/cit...
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    License: CC BY
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    https://doi.org/10.5772/23513...
    Part of book or chapter of book . 2011
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  • Authors: Pavel Marozik; Irma Mosse; Carmel Mothersill; Colin Seymour;

    The purpose of this work was to study possible mechanisms of radiation-induced bystander effect proceeding from its modification using different radioprotective substances: melanin, melatonin and α-tocopherol. All substances were able to statistically significant decrease the damaging effect of bystander factor from irradiated cells on non-irradiated. The protective effect against bystander irradiation was much less than against direct irradiation. Melatonin showed the best protective effect against both direct and bystander irradiations, and vitamin E - the least. According to the results, bystander factor may have physical component and oxidative nature.

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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Pavel Marozik; Irma Mosse; Sergey Melnov; Mikhail S. Marozik; +2 Authors

    The purpose of this work was the analysis of the effects of bystander factors from blood sera of people affected by the Chernobyl accident on human keratinocyte cell culture (HPV-G cells). A new method was developed for evaluation of bystander factor presence in vivo in blood of people irradiated by the Chernobyl accident. Affected population groups included liquidators of the Chernobyl accident and people living and working in areas of Gomel region contaminated by radionuclides. The analysis has shown that bystander factors persist in Chernobyl liquidator blood samples for more than 20 years since irradiation. The data suggest that blood sera contain bystander factors, which are able to induce micronuclei and decrease metabolic activity of HPV-G cells.

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    https://doi.org/10.1007/978-94...
    Part of book or chapter of book . 2011
    License: Springer Nature TDM
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      https://doi.org/10.1007/978-94...
      Part of book or chapter of book . 2011
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30 Research products
  • Authors: Lawrence A. Kapustka; Nadezhda Goncharova; G. Arapis;

    Discussions regarding the role of ecotoxicology in Ecological Risk Assessment were held in an open forum.

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  • Authors: Anatoly A. Kilbas; Hari M. Srivastava; Juan J. Trujillo;

    The paper is devoted to some aspects of differential equations of fractional order and their applications. It is explained a fact that the subject of fractional differential equations is an emergent topic as a very useful tool to model many anomalous phenomena in nature and in the theory of complexity systems. Various fractional integral and fractional derivative are presented together with some of their properties. Simple partial differential equations are discussed in connection with anomalous diffusion. A new model, useful in both sub-diffusion and super-fast diffusion processes, is introduced. Such a model, generalizing the clasical problem associated with the heat equation, involves the generalized Liouville fractional derivative over the time variable. The one-dimensional case is studied and explicitely solved, and its generalization to the multi-dimensional case is discussed.

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  • Authors: Pavel Marozik; Irma Mosse; Sergey Melnov; Carmel Mothersill; +2 Authors
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  • Authors: C R Gordon; R S Merchant; Anthony Marmarou; C D Rice; +2 Authors

    We investigated the effects of murine recombinant interleukin-1 (rIL-1, Du Pont) in vivo in the normal rat brain and here report both local and systemic effects of centrally administered rIL-1. Normal rats were given single or multiple atraumatic doses of either rIL-1 or and equal volume (5 microliters) of vehicle for control comparison. All dosages of intraparenchymal rIL-1 produced a uniform a hyperthermic response and concomitant lethargy. There was a related anorexia beyond fever duration. Histologic examination of intraparenchymal injection tracts revealed fibrillary whorls of oedema and a cellular infiltrate surrounding the rIL-1 tract, while similar changes were less prominent in control injection tracts. Repeated high doses of rIL-1 produced significantly higher concentrations of brain water as measured by the gravimetric technique. We conclude that rIL-1 is not only a potent chemoattractant, but is also an edigematic agent when administered in high doses.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Prasad, Manya; Krishnan, Pudukode R; Sequeira, Reginald; Al‐Roomi, Khaldoon;

    Background Status epilepticus is a medical emergency associated with significant mortality and morbidity that requires immediate and effective treatment. Objectives (1) To determine whether a particular anticonvulsant is more effective or safer to use in status epilepticus compared to another and compared to placebo. (2) To delineate reasons for disagreement in the literature regarding recommended treatment regimens and to highlight areas for future research. Search methods For the latest update of this review, the following electronic databases were searched on 15/08/2013: the Cochrane Epilepsy Group's Specialized Register, CENTRAL The Cochrane Library July 2013, Issue 7, and MEDLINE (Ovid) 1946 to 15/08/2013. Selection criteria Randomised controlled trials of participants with premonitory, early, established or refractory status epilepticus using a truly random or quasi-random allocation of treatments were included. Data collection and analysis Two review authors independently selected trials for inclusion, assessed trial quality and extracted data. Main results Eighteen studies with 2755 participants were included. Few studies used the same interventions. Intravenous diazepam was better than placebo in reducing the risk of non-cessation of seizures (risk ratio (RR) 0.73, 95% confidence interval (CI) 0.57 to 0.92), requirement for ventilatory support (RR 0.39, 95% CI 0.16 to 0.94), or continuation of status epilepticus requiring use of a different drug or general anaesthesia (RR 0.73, 95% CI 0.57 to 0.92). Intravenous lorazepam was better than placebo for risk of non-cessation of seizures (RR 0.52, 95% CI 0.38 to 0.71) and for risk of continuation of status epilepticus requiring a different drug or general anaesthesia (RR 0.52, 95% CI 0.38 to 0.71). Intravenous lorazepam was better than intravenous diazepam for reducing the risk of non-cessation of seizures (RR 0.64, 95% CI 0.45 to 0.90) and had a lower risk for continuation of status epilepticus requiring a different drug or general anaesthesia (RR 0.63, 95% CI 0.45 to 0.88). Intravenous lorazepam was better than intravenous phenytoin for risk of non-cessation of seizures (RR 0.62, 95% CI 0.45 to 0.86). Diazepam gel was better than placebo gel in reducing the risk of non-cessation of seizures (RR 0.43 95% CI 0.30 to 0.62) For pre-hospital treatment, intramuscular midazolam is at least as effective as (probably more effective than) intravenous lorazepam in control of seizures (RR1.16, 95% CI 1.06 to 1.27) and frequency of hospitalisation (RR 0.88, 95% CI 0.79 to 0.97) or intensive care admissions (RR 0.79, 95% CI 0.65 to 0.96). It was uncertain whether Intravenous valproate was better than intravenous phenytoin in reducing risk of non-cessation of seizures (RR 0.75, 95% CI 0.28 to 2.00). Both levetiracetam and lorazepam were equally effective in aborting seizures (RR 0.97, 95% CI 0.44 to 2.13). Results for other comparisons of anticonvulsant therapies were uncertain due to single studies with few participants. The body of randomised evidence to guide clinical decisions is small. It was uncertain whether any anticonvulsant therapy was better than another in terms of adverse effects, due to few studies and participants identified. The quality of the evidence from the included studies is not strong but appears acceptable. We were unable to make judgements for risk of bias domains incomplete outcome reporting (attrition bias) and selective outcome reporting (selection bias) due to unclear reporting by the study authors. Authors' conclusions Intravenous lorazepam is better than intravenous diazepam or intravenous phenytoin alone for cessation of seizures. Intravenous lorazepam also carries a lower risk of continuation of status epilepticus requiring a different drug or general anaesthesia compared with intravenous diazepam. Both intravenous lorazepam and diazepam are better than placebo for the same outcomes. For pre hospital management, midazolam IM seemed more effective than lorazepam IV for cessation of seizures, frequency of hospitalisation and ICU admissions however,it was unclear whether the risk of recurrence of seizures differed between treatments. The results of other comparisons of anticonvulsant therapies versus each other were also uncertain. Universally accepted definitions of premonitory, early, established and refractory status epilepticus are required. Diazepam gel was better than placebo gel in reducing the risk of non-cessation of seizures. Results for other comparisons of anticonvulsant therapies were uncertain due to single studies with few participants.

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    Europe PubMed Central
    Other literature type . 2014
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    Europe PubMed Central
    Other literature type . 2007
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    British Journal of Clinical Pharmacology
    Article . 2007
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    https://doi.org/10.1002/146518...
    Part of book or chapter of book . 2005
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      Europe PubMed Central
      Other literature type . 2014
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      Europe PubMed Central
      Other literature type . 2007
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      British Journal of Clinical Pharmacology
      Article . 2007
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      https://doi.org/10.1002/146518...
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  • Authors: Tamara Kukharchyk; Valery Khomich; Sergey Kakareka; Svetlana Utochkina;

    In the paper environmental problems connected with such dangerous chemicals as polychlorinated biphenyls (PCBs) are discussed. Sources of PCBs in Belarus, location of the main part of PCBs in cities and towns, as well as specificity of PCB discharges into environment are shown. The content of PCBs in urban soil of different functional zones is given. High level of soil pollution by PCBs in places of PCB-containing equipment installation and storage is revealed. The peculiarities of hot spots formation and spreading of PCBs beyond the places of PCB leakage are established. Pollution of bottom sediments of some aquatic ecosystems by PCBs is identified. The problems and perspectives of PCB monitoring in urban environment are discussed.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: A L, Kozyrskyj; G E, Hildes-Ripstein; S E, Longstaffe; J L, Wincott; +3 Authors

    Background Acute otitis media (AOM) is a common illness during childhood, for which antibiotics are frequently prescribed. Objectives To determine the effectiveness of a short course of antibiotics (less than seven days) in comparison to a long course of antibiotics (seven days or greater) for the treatment of AOM in children. Search methods We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2009, issue 4) which contains the Acute Respiratory Infections Group's Specialised Register, MEDLINE, EMBASE, MEDLINE In-Process & Other Non-Indexed Citations, CINAHL, BIOSIS Previews, OCLC Papers First and Proceedings First, Proquest Dissertations and Theses (inception to November 2009); International Pharmaceutical Abstracts, the NLM Gateway, ClinicalTrials.gov and Current Controlled Trials (inception to August 2008). Selection criteria Trials were included if they met the following criteria: participants aged one month to 18 years; clinical diagnosis of ear infection; no previous antimicrobial therapy; and randomisation to treatment with less than seven days versus seven days or more of antibiotics. Data collection and analysis The primary outcome of treatment failure was defined as the absence of clinical resolution, relapse or recurrence of AOM during one month following initiation of therapy. Treatment outcomes were extracted from individual studies and combined in the form of a summary odds ratio (OR). A summary OR of 1.0 indicates that the treatment failure rate following less than seven days of antibiotic treatment was similar to the failure rate following seven days or more of treatment. Main results This update included 49 trials containing 12,045 participants. Risk of treatment failure was higher with short courses of antibiotics (OR 1.34, 95% CI 1.15 to 1.55) at one month after initiation of therapy (21% failure with short-course treatment and 18% with long-course; absolute difference of 3% between groups). There were no differences found when examining treatment with ceftriaxone for less than seven days (30% failure in those receiving ceftriaxone and 27% in short-acting antibiotics administered for seven days or more) or azithromycin for less than seven days (18% failure in both those receiving azithromycin and short-acting antibiotics administered for seven days or more) with respect to risk of treatment failure at one month or less. Significant reductions in gastrointestinal adverse events were observed for treatment with short-acting antibiotics and azithromycin. Authors' conclusions Clinicians need to evaluate whether the minimal short-term benefit from longer treatment of antibiotics is worth exposing children to a longer course of antibiotics.

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    Europe PubMed Central
    Other literature type . 2010
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    https://doi.org/10.1002/146518...
    Part of book or chapter of book . 2000
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      https://doi.org/10.1002/146518...
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Özdemir, Öner;

    Multifunctional mast cells (MC) have been recently reported as effectors in the human innate and even adaptive immune system, besides their known roles in allergic disorders. First in vivo observations in the 1950`s suggested their possible role as anti-tumor cells around certain solid tumors and questioned their interactions with tumor cells (Prior, 1953). Later, in vitro murine mast cell cytotoxicity (MCC) against murine tumor cells was described in 1981 (Henderson, 1981; Ghiara, 1985; Richards 1988). However, to the best of our knowledge, there is no reported data on in vitro human MCC against human tumor cells. Current in vivo observations and implications from human pathological specimens are also very controversial. Moreover, there is still difficulty in obtaining and maintaining human MCs in cultures since they have low expansion potential. These facts have hampered in vitro human MC studies up to the last decades of the 20th century. The recent use of methylcellulose media for in vitro human MC cultures increased the knowledge and data strongly supporting an increasing role of MC as effector elements of innate immunity (Leskinen, 2003; Marshall, 2004; Della Rovere, 2009; Ozdemir, 2007, 2011). Ambiguous and mounting evidence also indicates that MCs accumulate around tumors and could either promote or inhibit tumor growth, most likely depending on environmental conditions. Presently, believers in the inhibitory role of MCs assume them to be inhibitors of tumor development through their cytotoxic pro-necrolytic/-apoptotic granules (WagelieSteffen, 1998; Leskinen, 2003; Kataoka, 2004; Pardo, 2007; Heikkila, 2008). In fact, the MC has been long believed to have natural cytotoxicity against murine TNF-α sensitive tumor cells in the long term incubations (>24h), by either TNF-α dependent or independent pathways. TNF-α independent pathways like cathepsin G, NO, serine proteases, peroxidases, H2O2 etc. were also assumed to contribute to MCC (Henderson, 1981; Ghiara, 1985; Richards 1988). Moreover, in vitro murine MCC has been well demonstrated against TNF-α-sensitive murine WEHI-164 and L929 tumor cells. Murine MCC seems to be different from natural killer (NK) cytotoxicity by means of acting in long term against unusual targets such as WEHI-164 and L929 with different mediators like peroxidases (Henderson, 1981; Ghiara, 1985; Richards 1988). Moreover, the last decade of research demonstrates that MC granules have pro-apoptotic characteristics (Wagelie-Steffen, 1998; Leskinen, 2003; Kataoka, 2004; Pardo, 2007; Heikkila, 2008). Chymase was shown to induce apoptosis, and apoptotic

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    https://doi.org/10.5772/23513...
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      InTech
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      https://www.intechopen.com/cit...
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      https://doi.org/10.5772/23513...
      Part of book or chapter of book . 2011
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  • Authors: Pavel Marozik; Irma Mosse; Carmel Mothersill; Colin Seymour;

    The purpose of this work was to study possible mechanisms of radiation-induced bystander effect proceeding from its modification using different radioprotective substances: melanin, melatonin and α-tocopherol. All substances were able to statistically significant decrease the damaging effect of bystander factor from irradiated cells on non-irradiated. The protective effect against bystander irradiation was much less than against direct irradiation. Melatonin showed the best protective effect against both direct and bystander irradiations, and vitamin E - the least. According to the results, bystander factor may have physical component and oxidative nature.

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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Pavel Marozik; Irma Mosse; Sergey Melnov; Mikhail S. Marozik; +2 Authors

    The purpose of this work was the analysis of the effects of bystander factors from blood sera of people affected by the Chernobyl accident on human keratinocyte cell culture (HPV-G cells). A new method was developed for evaluation of bystander factor presence in vivo in blood of people irradiated by the Chernobyl accident. Affected population groups included liquidators of the Chernobyl accident and people living and working in areas of Gomel region contaminated by radionuclides. The analysis has shown that bystander factors persist in Chernobyl liquidator blood samples for more than 20 years since irradiation. The data suggest that blood sera contain bystander factors, which are able to induce micronuclei and decrease metabolic activity of HPV-G cells.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao https://doi.org/10.1...arrow_drop_down
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    https://doi.org/10.1007/978-94...
    Part of book or chapter of book . 2011
    License: Springer Nature TDM
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao https://doi.org/10.1...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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