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1982. Biomarkers of bronchial asthma
- Creator:
- Kunc, Peter , Fabry, Jaroslav , Lucanska, Miroslava , and Pecova, Renata
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- biomarkers and bronchial asthma
- Language:
- English
- Description:
- Asthma is a complex disease with a variable course. Efforts to identify biomarkers to predict asthma severity, the course of disease and response to treatment have not been very successful so far. Biomarker research has expanded greatly with the advancement of molecular research techniques. An ideal biomarker should be suitable to identify the disease as well the specific endotype/phenotype, useful in the monitoring of the disease and to determine the prognosis, easily to obtain with minimum discomfort or risk to the patient. An ideal biomarker should be suitable to identify the disease as well the specific endotype/phenotype, useful in the monitoring of the disease and to determine the prognosis, easily to obtain with minimum discomfort or risk to the patient - exhaled breath analysis, blood cells and serum biomarkers, sputum cells and mediators and urine metabolites could be potential biomarkers of asthma bronchiale. Unfortunately, at the moment, an ideal biomarker doesn’t exist and the overlap between the biomarkers is a reality. Using panels of biomarkers could improve probably the identification of asthma endotypes in the era of precision medicine.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1983. Biomarkers of cellular apoptosis and necrosis in donor myocardium are not predictive of primary graft dysfunction
- Creator:
- Ondrej Szárszoi, Josef Bešík, Michal Smetana, Jan Malý, Urban, M., Jana Malušková, Alena Lodererová, Lenka Hošková, Tucanova, Z., Jan Pirk, and Ivan Netuka
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, transplantace srdce, apoptóza, nekróza, heart transplantation, apoptosis, necrosis, primary graft dysfunction, 14, and 612
- Language:
- English
- Description:
- Primary graft dysfunction (PGD) is a life-threatening complication among heart transplant recipients and a major cause of early mortality. Although the pathogenesis of PGD is still unclear, ischemia/reperfusion injury has been identified as a predominant factor. Both necrosis and apoptosis contribute to the loss of cardiomyocytes during ischemia/reperfusion injury, and this loss of cells can ultimately lead to PGD. The aim of our prospective study was to find out whether cell death, necrosis and apoptosis markers present in the donor myocardium can predict PGD. The prospective study involved 64 consecutive patients who underwent orthotopic heart transplantation at our institute between September 2010 and January 2013. High-sensitive cardiac troponin T (hs-cTnT) as a marker of minor myocardial necrosis was detected from arterial blood samples before the donor’s pericardium was opened. Apoptosis (caspase-3, active + pro-caspase-3, bcl-2, TUNEL) was assessed from bioptic samples taken from the right ventricle prior graft harvesting. In our study, 14 % of transplant recipients developed PGD classified according to the standardized definition proposed by the ISHLT Working Group. We did not find differences between the groups in regard to hs-cTnT serum levels. The mean hs-cTnT value for the PGD group was 57.4±22.9 ng/l, compared to 68.4±10.8 ng/l in the group without PGD. The presence and severity of apoptosis in grafted hearts did not differ between grafts without PGD and hearts that subsequently developed PGD. In conclusion, our findings did not demonstrate any association between measured myocardial cell death, necrosis or apoptosis markers in donor myocardium and PGD in allograft recipients. More detailed investigations of cell death signaling pathways in transplanted hearts are required., O. Szarszoi, J. Besik, M. Smetana, J. Maly, M. Urban, J. Maluskova, A. Lodererova, L. Hoskova, Z. Tucanova, J. Pirk, I. Netuka., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1984. Biomarkery roztroušené sklerózy – současné možnosti a perspektivy
- Creator:
- Piťha, Jiří
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, přehledy, and TEXT
- Subject:
- roztroušená skleróza--diagnóza--enzymologie--terapie, nemoci centrálního nervového systému--diagnóza--etiologie--terapie, biologické markery--krev--mok mozkomíšní, diagnostické techniky neurologické--využití, interferon beta--terapeutické užití, monoklonální protilátky--terapeutické užití, fetuiny--diagnostické užití--izolace a purifikace--mok mozkomíšní, osteopontin--diagnostické užití--izolace a purifikace--krev--mok mozkomíšní, prostaglandiny F--izolace a purifikace--krev--mok mozkomíšní, chemokin CXCL13--diagnostické užití--izolace a purifikace, axony--metabolismus, prognóza, molekulární biologie--metody--trendy, biomedicínský výzkum, and lidé
- Language:
- Czech and English
- Description:
- Roztroušená skleróza je chronické onemocnění centrálního nervového systému neznámé etiologie s projevy autoimunitního zánětu a neurodegenerace. Onemocnění je heterogenní s nepředvídatelnou prognózou. Průběh choroby lze monitorovat klinickými parametry a sledováním vývoje patologických změn na magnetické rezonanci. I když máme znalosti o efektu nově zaváděných léků na základě klinických studií, není možné předvídat jejich účinnost u konkrétního pacienta. Proto se v posledních letech prosazuje snaha najít takové laboratorní markery, které by co možná nejspolehlivěji odpověděly na otázky spojené se subklinickou aktivitou onemocnění, jeho progresí a usnadnily terapeutické rozhodnutí na základě personifikované medicíny., Multiple sclerosis is a chronic disease of the central nervous system of unknown etiology with manifestations of autoimmune inflammation and neurodegeneration. The disease is heterogeneous with an unpredictable outcome. The course of the disease can be monitored with clinical parameters as well as pathological changes on magnetic resonance imaging. Even though the effects of newly introduced drugs are known from clinical trials, it is not possible to predict their efficacy in a specific patient. Therefore, efforts have intensified over the recent years to identify laboratory markers that would as reliably as possible answer questions on subclinical disease activity, its progression and would facilitate therapeutic decisions based personalized medicine. Key words. multiple sclerosis – therapy – biomarkers The author declare he has no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers., and J. Piťha
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1985. Biomechanical analysis of the dummy responses in case of child pedestrian/cyclist collision with passenger car
- Creator:
- Schejbalová, Zuazana, Mičunek , Tomáš, and Schmidl , Drahomír
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Child cyclist, child pedestrian, passenger car, dynamic test, collision configuration, biomechanical load, accidents and losses minimization, and prediction diagnostics
- Language:
- English
- Description:
- The safety of pedestrians and cyclists in traffic is justified especially in terms of prevention. This paper deals with the biomechanical analysis of load exerted on the child pedestrian and cyclist. In the case of cyclists, the impact configurations were chosen with respect to the statistical outputs (sudden enter the road or the case of non-giving way; the car front vs. the left side of the cyclists). Two tests were performed in the same configuration and nominal collision speed, the first one with a bicycle helmet and the second one without the helmet. The initial position of pedestrian was chosen with respect to the dummy degrees of freedom. Using the accelerometers in the head, chest, pelvis and knee of the dummy acceleration fields were detected, which are the child pedestrian and cyclist exposed during the primary and secondary collision. In addition, prediction diagnostics method implementation was discussed such as one possible solution of vulnerable road users harm reduction. In conclusion, the results are interpreted by values of biomechanical load and severity of potential injuries including kinematic and dynamic comparison.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1986. Biometric data vulnerabilities: privacy implications
- Creator:
- Krausová, Alžběta, Hazan, Hananel, and Ján Matejka
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- evropské právo, otisky prstů, soukromí, sítnice, European law, fingerprints, privacy, retina, augmented indicative value, biomarker, biometric data, face recognition, General Data Protection Regulation, identification, personal data, voice recognition, vulnerability, 16, and 34
- Language:
- English
- Description:
- Biometric data are typically used for the purposes of unique identification of a person. However, recent research suggests that biometric data gathered for the purpose of identification can be analysed for extraction of additional information. This augments indicative value of biometric data. This paper illustrates the range of augmented indicative values of the data as well as identifies crucial factors that contribute to increased vulnerability of data subjects., Alžběta Krausová, Hananel Hazan, Ján Matejka., and Obsahuje bibliografické odkazy
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1987. Biometrics: Advanced Identify Verification The Complete Guide, Julian Ashbourn
- Creator:
- Hajný , Michal
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Language:
- English
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1988. Biometry of the large dragonfly Anax imperator (Odonata: Aeshnidae): a study of traits from larval development to adults
- Creator:
- Minot, Marceau, Le Gall, Mickaël , and Husté, Aurélie
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- Odonata, Aeshnidae, Anax imperator, body length, body mass, larval rearing, sexual size dimorphism, and traits
- Language:
- English
- Description:
- Insect larval development affects adult traits but the biometric relationships are usually poorly understood, including large odonates. In this study, measurements of morphological traits of larvae, exuviae and adults of Anax imperator were recorded. They were used to investigate the effects of early development on adult morphology. Results showed an increase in larval length during the final instar and the length of its exuviae significantly exceeded that of the larva. Length and body mass of teneral adults were strongly related to the length of their exuviae. Adult males were significantly longer than adult females, while both had the same body mass at emergence. Length of teneral adults was negatively related to the date of emergence in both sexes. During maturation, body mass of males only increased slightly whereas that of females increased greatly. Mature specimens were also significantly longer than teneral individuals. Body mass of mature males and length of mature females were both associated with the date of capture. Wing length did not differ between sexes or from data available from Great Britain. This study underscores the importance of taking into account larval growth in order to better understand the adult traits of odonates.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1989. Bionomics and ecology of Bemisia tabaci (Sternorrhyncha: Aleyrodidae) in Italy
- Creator:
- Bosco, Domenico and Caciagli, Piero
- Type:
- article, model:article, and TEXT
- Subject:
- Aleyrodidae, Bemisia tabaci, developmental time, cold resistance, overwintering, Italy, and distribution
- Language:
- English
- Description:
- The development of a B-biotype Bemisia tabaci Italian colony was studied on bean at 9 constant temperatures (15, 16, 17, 20, 23, 26, 29, 32, 35°C). The developmental time from egg-to-adult varied from 70 days at 16°C to 22 at 26°C and higher temperatures. A thermal requirement for egg-to-adult development of 307 day-degrees was calculated, based on a lower developmental threshold of 11.53°C. The survival of egg, nymph and adult whiteflies was investigated at 0, 2, 4, and 6°C on broad bean for periods of 1-8 days. The adult was the most cold-sensitive stage, while the egg and nymph showed a similar level of cold resistance. The effect of sub-lethal cold stress of 4-8 days at 4°C on eggs and nymphs was studied. After exposure to low temperatures, whiteflies needed longer developmental times, from 5 to 8 days more. The presence of B. tabaci under outdoor conditions in Italy was investigated with field surveys and correlated with climatic data; the whitefly species was found in open field conditions only south of the 41° parallel, in areas characterised by less than 5 frost days per winter and by annual mean temperatures >16°C.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1990. Biopsia kostnej drene pri myeloproliferatívnych neopláziách – potreba či prežitok?
- Creator:
- Marcinek, Juraj, Burjanivová, Tatiana, and Plank, Lukáš
- Format:
- braille, text, and regular print
- Type:
- model:article, article, Text, and TEXT
- Subject:
- financování organizované, lidé, leukemie myeloidní chronická atypická BCR-ABL-negativní--diagnóza--patologie, myeloproliferativní poruchy--diagnóza--patologie, primární myelofibróza--diagnóza--patologie, polycythemia vera--diagnóza--patologie, esenciální trombocytemie--diagnóza--patologie, diferenciální diagnóza, histologické techniky--využití, megakaryocyty--patologie, hematologie, biopsie--využití, kostní dřeň--patologie, and vyšetřování kostní dřeně
- Language:
- Czech, Slovak, and English
- Description:
- Klasifikácia SZO (2008) je jediná celosvetovo akceptovaná a v praxi používaná klasifikácia nádorových ochorení kostnej drene (KD), ktorá definuje aj postavenie a význam biopsie KD v diagnostickom algoritme. Myeloproliferatívne neoplázie (MPN) tvoria pestrú skupinu ochorení s variabilne dynamickým rozvojom z počiatočných štádií, cez štádiá s plno rozvinutou klinicko-laboratórnou manifestáciou až do pokročilých štádií – fibrotickej, resp. blastovej transformácie, sprevádzaných zmenami morfológie a laboratórneho obrazu. V počiatočných štádiách je určenie typu MPN len na základe klinicko-laboratórnych údajov pre podobnosť ich klinickej manifestácie nespoľahlivé. Dôkaz pre MPN typických genetických mutácií potvrdzuje klonalitu ochorenia, ale jeho typizačný význam je limitovaný. Naopak, bioptické vyšetrenie KD v kontexte dostatočných klinických informácií, výsledkov laboratórnych vyšetrení a s podporou genetických vyšetrení umožňuje okrem potvrdenia MPN aj bližšiu typizáciu, ktorá je prognosticky relevantná a ovplyvňuje aj voľbu terapie. Zároveň umožňuje odlíšenie reaktívnych zmien hemopoézy, zhodnotenie prognosticky významných morfologických znakov (stupeň myelofibrózy, množstvo blastov) a sledovanie progresie ochorenia do fibrotickej, resp. blastovej transformácie. V týchto pokročilých štádiách a po terapii nie je však typizácia MPN len na základe morfológie KD možná. Výpovedná hodnota biopsie závisí od kvality a kvantity vzorky drene, hodnotenie morfológie KD závisí aj od vedomostí a skúseností vyšetrujúceho patológa., WHO classification (2008) is the only world-wide accepted and in routine praxis used classification of bone marrow (BM) neoplasms defining also the importance of BM biopsy within the diagnostic algorithm. Myeloproliferative neoplasias (MPN) represent a heterogenous group of disorders with variable dynamic transformational potential from initial into advanced stages such as blast crisis or myelofibrotic transformation. Because of similar manifestations, the typing of MPN in their initial stages based on clinical and laboratory parameters is not optimal. The finding of MPN-typical genetic mutations proves the disease clonality, but not a diagnosis of individual MPN types. In contrast, the BM biopsy verifies both the diagnosis and MPN type. It helps also to discriminate MPN from reactive hematopoietic changes, to evaluate prognostically relevant BM features (e.g. grade of myelofibrosis, blasts number) and the follow-up to terminal stages. However, the MPN typing in terminal and posttherapeutical stages based on morphology alone is not sufficient. The diagnostic value of BM biopsy depends on specimen´s quality, the objectivity of BM morphology evaluation depends on pathologist´s training and experiences. A correct BM biopsy interpretation should be done within the context of sufficient clinical and laboratory data and with support of genetical analyses. myelofibrosis, bone marrow biopsy., Juraj Marcinek, Tatiana Burjanivová, Lukáš Plank, and Literatura 28
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public