Influenza is a highly contagious viral di - sease of the respiratory tract. Influenza viruses infect humans as well as animals, especially birds and pigs. Over the last ten years, molecular biology methods have enabled us to explain the extraordinary mortality of the „Spanish flu“ epidemic of 1918 and other major pandemics of the 20th century. Although the so-called „pig flu“ epidemic of 2009 caused by the H1N1 virus had less grave consequences than expected, the danger of another flu pande - mic remains very serious. and Jan Konvalinka, Ladislav Machala.
MEHMO syndrome is a rare X-linked syndrome characterized by Mental retardation, Epilepsy, Hypogenitalism, Microcephaly, and Obesity associated with the defect of protein synthesis caused by the EIF2S3 gene mutations. We hypothesized that the defect in protein synthesis could have an impact on the immune system. We describe immunologic phenotype and possible treatment outcomes in patient with MEHMO syndrome carrying a frameshift mutation (I465fs) in the EIF2S3 gene. The proband (currently 9-year-old boy) had normal IgG and IgM levels, but had frequent respiratory and urinary tract infections. On subcutaneous immunoglobulin therapy achieving supraphysiological IgG levels the frequency of infections significantly decreased in Poisson regression by 54.5 % (CI 33.2-89.7, p=0.017). The MEHMO patient had had frequent acute infections despite normal IgG and IgM serum levels and responded well to the immunoglobulin treatment., Ivana Trochanová, Daniela Staníková, Martina Škopková, Klaudia Haštová, Daniela Gašperíková, Juraj Staník, Peter Čižnár., and Obsahuje bibliografii
Biofilm, as a form of microbial existence, is very important from the medical point of view. Both our native microflora and pathogenic bacteria live in the biofilm form. Microbes growing in the biofilm show higher resistance to externall conditions and to the action of antimicrobials, which is considered to be very important virulence factor common to all biofilm-positive bacteria. The article deals with both biofilmformed native microflora and biofilm infections. and Veronika Holá.
Cieľ: Cieľom práce bolo zistiť výskyt komplikácií v závislosti od veku a pohlavia pacientov, od dĺžky zavedenia stimulačnej elektródy, od zvolenej cesty prístupu zavedenia stimulácie u pacientov hospitalizovaných na Oddelení arytmií a koronárnej jednotky v Univerzitnej nemocnici Martin. Metodika: Pre zber potrebných údajov sme použili obsahovú analýzu zdravotnej dokumentácie, nemocničný informačný systém, pozorovanie na základe vypracovaného záznamového hárku. Údaje sme analyzovali pomocou deskriptívnej a induktívnej štatistiky. V sledovanom súbore bolo 38 pacientov od 58 rokov do 93 rokov. Pacienti boli akútne prijatí na Jednotku intenzívnej starostlivosti za účelom realizácie dočasnej kardiostimulácie, ktorá bola užívaná v priemere 5,28 ± 2,33 dní. Výsledky: Na základe spracovania údajov sme u 17 pacientov zistili výskyt komplikácií, pričom najčastejšou komplikáciou bola lokálna infekcia. Štatistickou analýzou sme zaznamenali významné vzťahy medzi dĺžkou zavedenia stimulačnej elektródy a výskytom lokálnej infekcie, kde nám vznikla silná signifikantná korelácia r(S) = 0,518 na hladine významnosti p = 0,001 a rovnako pri výskyte hematómu sme zaznamenali koreláciu r(S) = 0,329 na hladine významnosti p = 0,023. Záver: Analýzou získaných údajov sme identifikovali najčastejšie vyskytujúce sa komplikácie v spojitosti s dočasnou kardiostimuláciou. Najčastejšie sme zaznamenali výskyt lokálnej infekcie, ktorý súvisí s následnou ošetrovateľskou starostlivosťou, ale aj s významnými prediktormi, ktoré môžu do značnej miery ovplyvniť ich vývoj., Aim: The aim of our study was to determinate the incidence of complications depending on the age and gender of patients, duration of implantation of stimulation electrode, of selected access point of implementation stimulation in patients hospitalized at the Arrhythmia unit and Coronary care unit in University hospital in Martin. Methods: For the collection of required data we have used content analysis of medical records, hospital information system, surveillance based on own designed sheet. The data were analysed using descriptive and inductive statistic. The sample consisted of 38 patients in the range from 58 to 93 years of age. Patients were acutely admitted to ICU with the aim of realization of temporary cardiac pacing, which lasted 5.28 ± 2.33 days in average. Results: On the basis of processed data, we found incidence of complications in 17 patients, where the most frequent complication was local infection. Using statistical analysis we found a significant relationship between duration of implementation of stimulation electrode and incidence of local infection, which resulted in strong significant correlation (r(S) = 0.518, p = 0.001) and similarly, we noted correlation in the incidence of haematoma (r(S) = 0.329, p = 0.023). Conclusion: Using analysis of the obtained data we have identified the most frequently occurring complications in conjunction with the temporary cardiac pacing. Most often we have noted the incidence of local infection that is associated with subsequent nursing care, but also with significant predictors, which can greatly affect its development., Ľubomíra Ježová, Ľubica Vengrínová, Katarína Žiaková, and Literatura 11
Toxoplasmosis is a common parasitic disease caused by Toxoplasma gondii (Nicolle et Manceaux, 1908), an obligate parasite capable of infecting a range of cell types in almost all warm-blooded animals. Upon infecting an intermediate host, the parasites differentiate into tachyzoites which rapidly infect host tissues. Usually, the invading parasites are cleared by the immune system and administered drugs, but some tachyzoites differentiate into bradyzoites forming tissue cysts. These tissue cysts could serve as a source for re-infection and exacerbations. Currently, treatment for toxoplasmosis is limited and, moreover, there are no drugs for treating the cystic stage thus rendering toxoplasmosis a global burden. Recently, we demonstrated that inorganic nanoparticles showed promising activity against the tachyzoite stage T. gondii. In the present study, we evaluated nanoparticles for effect on bradyzoite formation in vitro. Data revealed that the nanoparticles limited bradyzoite burden in vitro. Further, the nanoparticles decreased the bradyzoite-specific BAG-1 promoter activity relative to the untreated control under a bradyzoite-inducing culture condition, even though this reduction in BAG-1 promoter activity waned with increasing concentrations of nanoparticles. In contrast, a parallel experiment under normal cell culture conditions showed that the nanoparticle treatment mildly increased the BAG-1 promoter activity relative to the untreated control. Taken together, the findings are evidence that nanoparticles not only possess anti-tachyzoite potential but they also have anti-bradyzoite potential in vitro., Oluyomi Stephen Adeyemi, Yuho Murata, Tatsuki Sugi, Yongmei Han, Kentaro Kato., and Obsahuje bibliografii
Associations between different infectious agents and obesity have been reported in humans for over thirty years. In many cases, as in nosocomial infections, this relationship reflects the greater susceptibility of obese individuals to infection due to impaired immunity. In such cases, the infection is not related to obesity as a causal factor but represents a complication of obesity. In contrast, several infections have been suggested as potential causal factors in human obesity. However, evidence of a causal linkage to human obesity has only been provided for adenovirus 36 (Adv36). This virus activates lipogenic and proinflammatory pathways in adipose tissue, improves insulin sensitivity, lipid profile and hepatic steatosis. The E4orf1 gene of Adv36 exerts insulin senzitizing effects, but is devoid of its pro-inflammatory modalities. The development of a vaccine to prevent Adv36- induced obesity or the use of E4orf1 as a ligand for novel antidiabetic drugs could open new horizons in the prophylaxis and treatment of obesity and diabetes. More experimental and clinical studies are needed to elucidate the mutual relations between infection and obesity, identify additional infectious agents causing human obesity, as well as define the conditions that predispose obese individuals to specific infections., V. Hainer, H. Zamrazilová, M. Kunešová, B. Bendlová, I. Aldhoon-Hainerová., and Obsahuje bibliografii
Babesia caballi (Nuttal, 1910) is one of the causative agents of equine piroplasmosis which causes economic losses to horse industry in China. There is an urgent need for rapid detection method for B. caballi infection in Xinjiang Province, China. To prepare monoclonal antibodies (mAbs) against Bc48 gene of B. caballi (Xinjiang local strains) and establish colloidal gold-immunochromatographic (ICT) assay for diagnosis of the disease, recombinant Bc48 was expressed and purified from Escherichia coli. With purified Bc48 as immunogen in mice, three hybridoma cells named 11F4, 1H2 and 7F4 secreting mAbs against Bc48 of B. caballi were obtained, which showed strong reaction with recombinant Bc48 and Bc48 gene transfected cells. Furthermore, colloidal gold labelled ICT assay based on purified Bc48 recombinant antigen and its mAb was developed. The ICT assay showed high sensitivity and specificity and no cross-reaction with Theileria equi (Laveran, 1901). Total of 56 horse serum samples collected from Xinjiang were tested by ICT and compared with the detection by commercial ELISA kit. The results showed that 32 out of 56 serum samples were positive by ICT and 33 were positive by ELISA. ICT assay had high coincidence (98%) to the reference ELISA kit. mAbs and ICT developed in this study could be provided as an efficient diagnosis tool for infection with B. caballi in horse in Xinjiang area., Panju Wang, Jingjing Song, Ruiqi Song, Mengyuan Zhang, Lijiang Wu, Fangxin Li, Yan Yan, Jiyong Zhou, Bayin Chahan, Min Liao., and Obsahuje bibliografii
Gender-specific reproductive roles are important factors determining sexual dimorphism. Here, we investigate the effects of sex-based differences and reproductive status on the defence of Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) against infection by Steinernema feltiae (Filipjev, 1934) (Rhabditida: Steinernematidae). Female and male beetles, either virgin or post-copulation, were exposed individually to nematodes. Individuals were then sampled every 12 h, dissected, and checked for the presence of nematodes; we also measured their phenoloxidase (PO) activity. Reproductive status affected resistance to nematodes and PO activity as infected virgin individuals had a higher PO activity and lower mortality than reproducing individuals, with no differences between sexes. Mortality also increased with time, while PO activity did not change. Parasite load was related to reproductive status and sex, with reproducing females with the highest parasite loads in all treatments, and virgin males with more nematodes than sexually active males. Our results indicate that the costs of reproduction impair the immunological system of T. castaneum similarly in both sexes. It is possible, however, that other components of the immunological system that we did not measure, such as lysozyme activity, are impaired by infection with S. feltiae in a sex-specific way., Paulina Kramarz, Dariusz Małek, Maria Gaweł, Szymon M. Drobniak, Joanna Homa., and Obsahuje bibliografii