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Clinical and experimental approaches to knee cartilage lesion repair and mesenchymal stem cell chondrocyte differentiation Biol. Res.
Montoya,Fredy; Martínez,Fernando; García-Robles,María; Balmaceda-Aguilera,Carolina; Koch,Ximena; Rodríguez,Federico; Silva-Álvarez,Carmen; Salazar,Katterine; Ulloa,Viviana; Nualart,Francisco.
Cartilage has poor regeneration capacity due to the scarcity of endogenous stem cells, its low metabolic activity and the avascular environment. Repair strategies vary widely, including microfracture, autologous or allogenic tissue implantation, and in vitro engineered tissues of autologous origin. However, unlike the advances that have been made over more than two decades with more complex organs, including vascular, cardiac or bone tissues, similar advances in tissue engineering for cartilage repair are lacking. Although the inherent characteristics of cartilage tissue, such as the lack of vascularity and low cellular diversity, suggest that it would be one of the more simple tissues to be engineered, its functional weight-bearing role and implant...
Tipo: Journal article Palavras-chave: Cartilage; Lesion; Microfracture; Stem cells.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000400015
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Typical and atypical stem cells in the brain, vitamin C effect and neuropathology Biol. Res.
Nualart,Francisco; Salazar,Katterine; Oyarce,Karina; Cisternas,Pedro; Jara,Nery; Silva-Álvarez,Carmen; Pastor,Patricia; Martínez,Fernando; García,Andrea; García-Robles,María de los Ángeles; Tapia,Juan Carlos.
Stem cells are considered a valuable cellular resource for tissue replacement therapies in most brain disorders. Stem cells have the ability to self-replicate and differentiate into numerous cell types, including neurons, oligodendrocytes and astrocytes. As a result, stem cells have been considered the "holy grail" of modern medical neuroscience. Despite their tremendous therapeutic potential, little is known about the mechanisms that regulate their differentiation. In this review, we analyze stem cells in embryonic and adult brains, and illustrate the differentiation pathways that give origin to most brain cells. We also evaluate the emergent role of the well known anti-oxidant, vitamin C, in stem cell differentiation. We believe that a complete...
Tipo: Journal article Palavras-chave: Stem cells; Radial glia; Vitamin C; SVCT2; Brain development; Tanycytes; Bergmann glia; Neurogenic niche; Type B cells; Neuroblast; Parkinson's disease; Alzheimer's disease; Amyotrophic lateral sclerosis.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000300006
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