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Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment

Advances in Polar Science 2019年第3期30卷 165-185页

作者： cecilia r.amenábar Andrea CArAMéS Susana ADAMONIS Ana DOLDAN Gabriel MACEIrAS Andrea CONCHEYrO Instituto de Estudios Andinos"Don Pablo Groeber".Consejo Nacional de Investigaciones Científicas y Técnicas.Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires.Pabellón II.Ciudad Universitaria Depar.amento de Ciencias Geológicas Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos Aires Instituto Antártico Argentino

A compiled selected literature on some groups of microfossils of the Mesozoic and Cenozoic of the James ross Basin,eastern Antarctic Peninsula,is presented here,in order to show how the microbiota has been modified over time,triggered by environmental *** analyzed microfossils consist of palynomorphs(mostly pollen grains,spores,and dinoflagellate cysts),foraminifers and *** cysts and pollen-spores have been recorded in Jurassic to Pleistocene sedimentary *** cysts proved to be good indicators for productivity and/or nutrient availability,surface water temperature and chemistry,the position of ancient shorelines and paleoceanographic *** and spores allowed reconstruction of floral community and thus characterization of the climate that prevailed on the ***,recovered from the Lower Cretaceous to the Pleistocene sedimentary rocks,provided information about the bathymetry,showing different marine settings(e.g.,coastal,inner neritic,outer neritic,upper bathyal)in different *** bryozoan record is restricted to the *** colonial growth-forms reflect several environmental conditions such as shallow waters with a low rate of sedimentation,hard substrate and moderate or strong current action for the analyzed *** study of the Antarctic ecosystems based on the fossil microbiota and their response to the climate and the continental configuration changes,allowed understanding of the composition and dynamics of the polar environments,which have an important role in the Earth climate.

关键词： pollen-spores dinoflagellate cysts foraminifers bryozoans palaeoenvironment Mesozoic-Cenozoic James ross Basin Antarctic Peninsula

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Follicular helper T lymphocytes in health and disease

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World Journal of Hematology 2014年第4期3卷 118-127页

作者： cecilia Parodi María Noel Badano Nora Galassi Ana Coraglia Patricia baré Alejandro Malbrán María Marta de Elizalde de Bracco Department of Immunology Instituto de Medicina Experimental (IMEX)– CONICET-Academia Nacional de Medicina (ANM) Pacheco de Melo 3081Ciudad Autónoma de Buenos Aires 1425Argentina Department of Virology Instituto de Investigaciones Hematológicas Mariano Castex (IIHEMA)-ANMPacheco de Melo 3081Ciudad Autónoma de Buenos Aires 1425Argentina Unidad de Alergia e Inmunología Clínica Av. Pte. Roque Saenz Pe?a 1160Ciudad Autónoma de Buenos Aires C1431GHABuenos AiresArgentina

A correct antibody response requires the participation of both B and T lymphocytes and antigen presenting cells. In this review we address the role of follicular helper T lymphocytes(T FH) in this reaction. We shall focus on the regulation of their development and function in health and disease. T FH can be characterized on the basis of their phenotype and the pattern of secretion of cytokines. This fact is useful to study their participation in the generation of antibody deficiency in primary immunodeficiency diseases such as common variable immunodeficiency, X-linked hyper Ig M syndrome orX-linked lymphoproliferative disease. Increased numbers of T FH have been demonstrated in several autoimmune diseases and are thought to play a role in the development of autoantibodies. In chronic viral infections caused by the human immunodeficiency virus, hepatitis B or C virus, increased circulating T FH have been observed, but their role in the protective immune response to these agents is under discussion. Likewise, an important role of T FH in the control of some experimental protozoan infections has been proposed, and it will be important to assess their relevance in order to design effective vaccination strategies.

关键词： Follicular helper T(TFH)lymphocytes TFH development Chemokine(C-X-C motif)receptor 5 Interleukin-21 Programmed cell death-1/Programmed cell death ligand 1(PDL-1)or PDL-2 Primary immunodeficiencies Autoimmunity Chronic viral infections Protozoan infections

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WOODEN PArADISE Cocktails and simple tapas on Fuxing LU

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城市漫步（上海版、英文） 2014年第12期 79-79页

作者： cecilia WANG 不详

Wooden Paradise is an intimate neighborhood bar with a cozy atmosphere accentuated by soft,wann lighting,illuminating a small space that com-fbrtably accommodates about 20 *** up to its name,seemingly everything in th... 详细信息

关键词： neighborhood walls lighting

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