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ZIKV Case Study

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With the outbreak of Zika virus (ZIKV) from 2013 to 2015, although there were clinical evidence regarding pregnant patients with ZIKV gives birth to birth defected infants, there weren’t experimental evidence of how this virus causes birth defects. Therefore to understand whether a specific type of ZIKV affects the embryo this research dig deep into how the ZIKV strain causes birth defects. Due to previous research, it was already known out of all the different strains of ZIKV, the Brazilian ZIKV strain causes the most severe congenital malformations. In order to understand how ZIKV was affecting the fetus, the location of the ZIKV mostly found in the body needs to be identified. Figure 1 identified the difference in fetal mice born from …show more content…

Figure 2 shows the result from transmission electron microscope, immunostaining, and fluorescence -activated cell analyses (FAC) for Mock, Brazilian ZIKV, and African ZIKV. First finding was between Mock and the Brazilian ZIKV and African ZIKV there were higher NPCs detected in the mock than neurons for AXL and MERTX receptor but when observed in Brazilian ZikV and African ZiKV infected pup, NPC and neurons were equivalent. Comparing the NPCs production in all three sets of cells with brazilian ZIKV showed increase of ZIkV RNA within the NPCs supernatant. But not the NPCs of African strain. The neuron cells were equivalent rate for both strains. Cell deaths were greatly observed in NPCs cultures than the neurons. Overtime sizes of all three NPC influenced neurosphere were measured. The result shows decrease in size for African and brazilian ZIKV and this supports brazilian ZIKV induces cell death in NPCs instead of neurons. For second part 2i and 2j since African ZIkV isn't as severe as Brazillian strain in the second part of the experiment cell death seems to decrease over time suggesting something is probably preventing apoptosis. What is it? Further comparison with African strain and Brazilian strain to understand their difference to lower the severe condition of microcephaly. As discussed before since infants are usually born with cortical development, the subtypes of cortical neurons amounts at 24 and 96 hours get investigated using organoids grow

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