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Full-Text Articles in Medicine and Health Sciences

Microrna-21 Dysregulates The Expression Of Mef2c In Neurons In Monkey And Human Siv/Hiv Neurological Disease., Sowmya V. Yelamanchili, A Datta Chaudhuri, L N. Chen, Huangui Xiong, Howard S. Fox Sep 2010

Microrna-21 Dysregulates The Expression Of Mef2c In Neurons In Monkey And Human Siv/Hiv Neurological Disease., Sowmya V. Yelamanchili, A Datta Chaudhuri, L N. Chen, Huangui Xiong, Howard S. Fox

Journal Articles: Pharmacology & Experimental Neuroscience

MicroRNAs (miRNAs) play important roles in regulating a plethora of physiological and pathophysiogical processes including neurodegeneration. In both HIV associated dementia in humans and its monkey model SIV encephalitis we find miR-21, a miRNA largely known for its link to oncogenesis, to be significantly upregulated in the brain. In situ hybridization of the diseased brain sections revealed induction of miR-21 in neurons. MiR-21 can be induced in neurons by prolonged N-methyl-D-aspartic acid receptor stimulation, an excitotoxic process active in HIV and other neurodegenerative diseases. Introduction of miR-21 into human neurons leads to pathological functional defects. Furthermore, we show that miR-21 …


Fenotipo Y Genotipo Del Virus De La Diarrea Viral Aislado De Bovinos En El Perú., Mariluz Araínga, Hermelinda Rivera G., Juan Carlos Huaman G., Alberto Manchego S. Jul 2010

Fenotipo Y Genotipo Del Virus De La Diarrea Viral Aislado De Bovinos En El Perú., Mariluz Araínga, Hermelinda Rivera G., Juan Carlos Huaman G., Alberto Manchego S.

Journal Articles: Pharmacology & Experimental Neuroscience

The aim of this study was to determine the phenotype and genotype of Bovine Viral Diarrhoea Virus (BVDV) in Peruvian cattle. During the period 1998-2007, tissues of aborted fetus, blood, serum or plasma samples of bovine with acute infection or persistently infected from dairy herds of various locations in the country were collected and the BVDV antigen was detected by immnunofluorescence or capture ELISA tests, and positive samples were inoculated en BVDV free BT cells and cultured until third passage to determine the biotype. Both animal tissues and third passage of positive samples were tested by a Real Time Reverse …