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Articles by Meiling Wang
Total Records ( 1 ) for Meiling Wang
  Qingzhong Kong , Mengjie Zheng , Cristina Casalone , Liuting Qing , Shenghai Huang , Bikram Chakraborty , Ping Wang , Fusong Chen , Ignazio Cali , Cristiano Corona , Francesca Martucci , Barbara Iulini , Pierluigi Acutis , Lan Wang , Jingjing Liang , Meiling Wang , Xinyi Li , Salvatore Monaco , Gianluigi Zanusso , Wen -Quan Zou , Maria Caramelli and Pierluigi Gambetti
  Bovine spongiform encephalopathy (BSE), the prion disease in cattle, was widely believed to be caused by only one strain, BSE-C. BSE-C causes the fatal prion disease named new variant Creutzfeldt-Jacob disease in humans. Two atypical BSE strains, bovine amyloidotic spongiform encephalopathy (BASE, also named BSE-L) and BSE-H, have been discovered in several countries since 2004; their transmissibility and phenotypes in humans are unknown. We investigated the infectivity and human phenotype of BASE strains by inoculating transgenic (Tg) mice expressing the human prion protein with brain homogenates from two BASE strain-infected cattle. Sixty percent of the inoculated Tg mice became infected after 20 to 22 months of incubation, a transmission rate higher than those reported for BSE-C. A quarter of BASE strain-infected Tg mice, but none of the Tg mice infected with prions causing a sporadic human prion disease, showed the presence of pathogenic prion protein isoforms in the spleen, indicating that the BASE prion is intrinsically lymphotropic. The pathological prion protein isoforms in BASE strain-infected humanized Tg mouse brains are different from those from the original cattle BASE or sporadic human prion disease. Minimal brain spongiosis and long incubation times are observed for the BASE strain-infected Tg mice. These results suggest that in humans, the BASE strain is a more virulent BSE strain and likely lymphotropic.
 
 
 
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