Materials And Methods: Relative expression of lncRNAs CARMN, LUCAT1, SMILR, and MALAT1 was tested in clinical aortic tissue and blood plasma samples from TAA and non-TAA patients using the qRT-PCR method. The Mann-Whitney test was used to compare Ct values between the study groups. ROC curve analysis was performed to evaluate the diagnostic value of plasma lncRNAs.
Results: We found significantly reduced CARMN ( = 0.033) and LUCAT1 ( = 0.009) expression in aortic tissue samples from TAA patients. Relative expression of MALAT1 ( = 0.117) and SMILR ( = 0.610) did not differ in aortic tissue between the TAA and non-TAA groups. Expression of both LUCAT1 and SMILR was significantly decreased in TAA patients' blood plasma compared to controls ( = 0.018 and = 0.032, respectively). However, only LUCAT1 showed the ability to discriminate aneurysmal disease in patients' blood plasma (AUC = 0.654, 95%CI = 0.534-0.775, = 0.018).
Conclusions: We have shown that the expression of lncRNAs CARMN and LUCAT1 is reduced in dilated aortic tissue and that the LUCAT1 and SMILR expression is lower in the blood plasma of TAA patients. Decreased LUCAT1 expression in TAA patients' blood plasma may have diagnostic potential in discriminating patients with TAA.
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| http://dx.doi.org/10.1155/2020/8521899 | DOI Listing |
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