1,721,031 research outputs found
Mycobacterium avium sub. paratuberculosis in Johne’s and Crohn’s disease: development of a specific fluorescence-based nanosensor.
No full textMycobacterium avium sub.paratuberculosis proteins as potential targets for developing a specific nanobiosensor
No full textDiagnostic study on Bartonella henselae and Bartonella clarridgeiae infections among Italian stray cats living in the Venetian coastal region
No full textMycobacterium avium sub. paratuberculosis in Johne’s and Crohn’s disease: development of a specific fluorescence-based nanosensor
No full text
Transition cow: non-specific immune response
Full text linkThe immune system consists of cells and their products, whose prime function is the protection of the host against pathogens and it can also acts as an accommodation device to facilitate the development of relatively peaceful associations with foreign organisms which, in some instances and especially in ruminants, could be or could become symbiotic. The immune system during pregnancy and the exchange of immunity from mother to newborn are unique events in immunological physiology. The peripartum hormonal changes contribute to impaired immune function. The physical and metabolic stresses of pregnancy, calving and lactation contribute to the decrease of host resistance and the subsequent increase in disease incidence. Pregnancy and peripartum period result in nonspecific immunosuppression of the dairy cow. The magnitude and timing of this reduction depend on many factors such as not adequate hygienic and sanitary management, not appropriate feed and housing and genetic differences. In this paper we deal with the evaluation of some parameters of non-specific immunity in dairy cattle in order to depict important features of the immune reactivity during the transition period and to make possible a preventive treatment. Lysozime concentration, serum bactericidal activity, serum proteins elettrophoretic profile, aptoglobin and complement with further analysis of non specific cellular immunological parameters could determine the effects of pregnancy, parturition and lactation on non-specific immune response especially during the peripartum period and may suggest the presence of not adequate hygienic and sanitary condition of the herd and/or not appropriate feed and management approach
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Transition cow: analisi della risposta immunitaria aspecifica
No full textThe immune system consists of cells and their products, whose prime function is the protection of the host against pathogens and it can also acts as an accommodation device to facilitate the development of relatively peaceful associations with foreign organisms which, in some instances and especially in ruminants, could be or could become symbiotic. The immune system during pregnancy and the exchange of immunity from mother to newborn are unique events in immunological physiology. The peripartum hormonal changes contribute to impaired immune function. The physical and metabolic stresses of pregnancy, calving and lactation contribute to the decrease of host resistance and the subsequent increase in disease incidence. Pregnancy and peripartum period result in nonspecific immunosuppression of the dairy cow. The magnitude and timing of this reduction depend on many factors such as not adequate hygienic and sanitary management, not appropriate feed and housing and genetic differences. In this paper we deal with the evaluation of some parameters of non-specific immunity in dairy cattle in order to depict important features of the immune reactivity during the transition period and to make possible a preventive treatment. Lysozime concentration, serum bactericidal activity, serum proteins elettrophoretic profile, aptoglobin and complement with further analysis of non specific cellular immunological parameters could determine the effects of pregnancy, parturition and lactation on non-specific immune response especially during the peripartum period and may suggest the presence of not adequate hygienic and sanitary condition of the herd and/or not appropriate feed and management approach
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