Apropiación social del conocimiento - BIO

URI permanente para esta colecciónhttp://hdl.handle.net/10906/78216

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Mostrando 1 - 4 de 4

Calcium, channels, intracellular signaling and autoimmunity
(2014-01-01) Cañas Dávila, Carlos Alberto
Calcium (Ca2+) is an important cation able to function as a second messenger in different cells of the immune system, particularly in B and T lymphocytes, macrophages, and mastocytes, among others. Recent discoveries related to the entry of Ca2+ through the store-operated calcium entry (SOCE) have opened a new investigation area about the cell destiny regulated by Ca2+ especially in B and T lymphocytes. SOCE acts through calcium-release-activated calcium (CRAC) channels. The function of CRAC depends upon two recently discovered regulators: the Ca2+ sensor in the endoplasmic reticulum or stromal interaction molecule (STIM-1) and one subunit of CRAC channels called Orai1. This review focuses on the role of Ca2+ signals in B and T lymphocytes functions, the signaling pathways leading to Ca2+ influx, and the relationship between Ca2+ signals and autoimmune diseases.
Efficacy of anti-interleukin-6 receptor antibody (tocilizumab) in colombian patients with takayasu’s arteritis
(BMJ Publishing Group Ltd, 2013-06-01) Izquierdo, Jorge H.
Background Takayasu’s arteritis (TA) is a chronic vasculitis that involves aorta and its main branches, where interleukin-6 (IL-6) seems to play a pathogenic role (1,2). The effect in four patients treated with the anti-IL-6 receptor (IL-6R) antibody Tocilizumab was evaluated. Objectives to describe the effect of Tocilizumab in patients of Takayasu’s arteritis. Methods We reviewed the clinical records of 4 patients with TA diagnosed according to current criteria, treated between 2010 and 2011 in a tertiary center in Cali, Colombia. Four patients with a refractory disease to multiple treatments, was began treatment with Tocilizumab at a dose of 8 mg/kg every month in association with metothrexate and/or steroids. Two patients were treated previously with infliximab (IFX) without control of disease. This cases were reported previously (3). Results The cases summaries are as follows: Case 1. A 30 year-old woman with a diagnosis of TA since 2003 presented panaortitis, with involvement of supra-aortic,
Historia del lupus y embarazo
(Ediciones Universidad Tecnologica de Boliva, 2011-01-01) Toro, Carlos
Realizar análisis periódicos de la información contenida en el registro. Determinar la frecuencia de las diferentes enfermedades autoinmunes diagnosticadas, manejadas y seguidas en la FVL
Hyperferritinemic syndrome: Still’s disease and catastrophic antiphospholipid syndrome triggered by fulminant Chikungunya infection: a case report of two patients
(Springer-Verlag London Ltd, 2015-08-02) Echeverry, Alex A.
There are four medical conditions characterized by high levels of ferritin, the macrophage activation syndrome (MAS), adult onset Still’ s disease (AOSD), catastrophic antiphospholipid syndrome (CAPS), and septic shock, that share similar clinical and laboratory features, suggesting a common pathogenic mechanism. This common syndrome entity is termed “the hyperferritinemic syndrome.” Here, we describe two different cases of hyperferritinemic syndrome triggered by Chikungunya fever virus infection: a 21-year-old female with SLE and a 32-year-old male patient who developed AOSD after the coinfection of dengue and Chikungunya viruses.

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Examinando Apropiación social del conocimiento - BIO por Autor "Cañas Dávila, Carlos Alberto"