Buscar
Mostrando ítems 4831-4840 de 12709
Conditional expression of Pomc in the Lepr-positive subpopulation of POMC neurons is sufficient for normal energy homeostasis and metabolism
(Endocrine Society, 2015-01-16)
Peptides derived from the proopiomelanocortin (POMC) precursor are critical for the normal regulation of many physiological parameters, and POMC deficiency results in severe obesity and metabolic dysfunction. Conversely, ...
Sub-Lethal Dose of Shiga Toxin 2 from Enterohemorrhagic Escherichia coli Affects Balance and Cerebellar Cythoarquitecture
(Frontiers Research Foundation, 2016-02)
Shiga toxin producing Escherichia coli may damage the central nervous system before or concomitantly to manifested hemolytic–uremic syndrome symptoms. The cerebellum is frequently damaged during this syndrome, however, the ...
Structural selection of a native fold by peptide recognition. Insights into the thioredoxin folding mechanism
(American Chemical Society, 2009-01)
Thioredoxins (TRXs) are monomeric alpha/beta proteins with a fold characterized by a central twisted beta-sheet surrounded by alpha-helical elements. The interaction of the C-terminal alpha-helix 5 of TRX against the ...
The galectin-1-glycan axis controls sperm fertilizing capacity by regulating sperm motility and membrane hyperpolarization
(Federation Amer Soc Exp Biol, 2015-07)
Lectin-glycan recognition systems play central roles in many physiologic and pathologic processes. Here, we identified a role for galectin-1 (Gal-1), a highly conserved glycan-binding protein, in the control of sperm ...
Amitosis, including nucleolar behaviour during fragmentation, in both axial and cortical cells of Chara contraria (Charales, Charophyta)
(Int Phycological Soc, 2007-03)
The results from the present study indicate that in Chara contraria the morphology of amitotic resting nuclei and amitosis depend essentially on the cell type as well to on some extent on the age and development of the ...
Trabajadores indígenas en el Chaco argentino: Algunos sentidos estigmatizadoresIndigenous Workers in El Chaco, Argentina: Some Stigmatizing ConceptsTrabalhadores indígenas no chaco argentino: alguns sentidos estigmatizadores
(Universidad de los Andes. Facultad de Ciencias Sociales, 2013-12)
Los qom del Chaco centro-oriental (en el extremo noreste de Argentina) constituyen una población trabajadora desplazada de la producción agropecuaria. El objetivo del presente trabajo es avanzar sobre las formas que la ...
Geometry and kinematics of the Fuegian thrust-fold belt, southernmost Andes
(American Geophysical Union, 2017-01)
Published balanced structural interpretations of the Fuegian thrust-fold belt (southernmost Andes) fail to address aspects such as basement shortening in the thrust-fold belt or its structural connection with the central ...
Impact of manganese on primary hippocampal neurons from rodents
(Wiley-liss, Div John Wiley & Sons Inc, 2014-05)
Manganese-enhanced magnetic resonance imaging (MEMRI) is a powerful tool for in vivo tract tracing or functional imaging of the central nervous system. However Mn2+ may be toxic at high levels. In this study, we addressed ...
Nets and canoes: A network approach to the pre-Hispanic settlement system in the Upper Delta of the Paraná River (Argentina)
(Academic Press Inc., 2016-12)
Graph theory-based network analysis provides useful methodological tools for the exploration of several landscape related issues. In particular, it favours the examination of the topological configuration of space; that ...
Phylogenetic Relationships in the Genus Paspalum (Poaceae: Panicoideae: Paniceae): An Assessment of the Quadrifaria and Virgata Informal Groups
(American Society of Plant Taxonomists, 2009-03)
Paspalum, an American genus of the x = 10 Paniceae clade, includes about 330 species, four subgenera, and 27 informal groups. Within the genus, the Quadrifaria and Virgata groups are well-represented in South and Central ...