Article Summary with questions to be answered over MAT2A Mutations Predispose Indivuals to Thoracic Aortic Aneurysms - Case Study Example

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Thoracic aortic aneurism and dissections (TAAD) is characterized by enlargements of the thoracic aorta above the heart which involve either the ascending thoracic aortic or aortic root or both and can gradually enlarge over a period of time and cause acute aortic dissection…
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Article Summary with questions to be answered over MAT2A Mutations Predispose Indivuals to Thoracic Aortic Aneurysms
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"Article Summary with questions to be answered over MAT2A Mutations Predispose Indivuals to Thoracic Aortic Aneurysms"

Download file to see previous pages Independent measures were applied since different zebrafish were used in each condition of mat2aa MO injection.
b. The control was a zebrafish with normal phenotype with no injected MO, it had minimal pericardial effusion and no tail defects. After the injection, moderately affected showed large pericardial effusion and small eyes. Severe effects showed large pericardial effusion, small eyes and severe tail curvature.
d. From this data, it can be concluded that mat2aa MO injection in the zebra fish caused significant defects in embryonic development. The developmental defects in the zebrafish were rescued by the wild type MAT2A mRNA more significantly compared to the mutant MAT2A mRNAs encoding either the p.Gly344Ala variant or the p.Arg356Hs variant.
5. The overall findings of the paper indicate that MAT2A loss of function variants predispose individuals to FTAAD. In rescuing the knocked-out defects in the zebrafish, WT MAT2 was more effective compared to other mRNA variants that were previously studied. This was used to establish whether the human wildtype and p.Gly344Ala and p.Arg356His mutant MAT2A mRNA rescued embryonic defects.
6. The main limitation in this research is that the disease progression is not known. The loss of function variants in MAT2A in FTAAD are predicted to lower cellular SAM levels which could lead to aortic disease through several pathways. It is probable that reduced SAM levels could decrease methylation activity or decrease in glutathione activity that increases oxidative stress. It is possible that the pathology that leads to aortic disease due to loss of MAT IIα may overlap with mutations of Fibrillin-1(FBN1) a protein that is altered in individuals with Marfan syndrome.
7. Identification of the pathway by which decreased enzymatic activity of MAT IIα leads to thoracic aortic aneurysm. Experiments that can help determine the pathway can be done by observing MAT IIα in zebra fish ...Download file to see next pagesRead More
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