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Objective To investigate the effects of trefoil factor 3 (TFF3) on the proliferation and apoptosis of human thyroid papillary carcinoma cell line (TPC-1) and its molecular mechanism. Methods The lentiviral expression vector of overexpression and knockdown of TFF3 gene were constructed, 293T cell was packaged to produce lentiviral particles, virus solution was collected and transfected into TPC-1 cells, enhanced cell TFF3-TPC-1 and enhanced control group ConTFF3-TPC-1; silencing cell shRNA-TFF3-TPC-1 and silencing control cells shCon -TPC-1. Western blotting, and Real-time PCR were used to detect the expression of TFF3 protein and mRNA of four groups. Growth curve and colony formation assay were used to detect the proliferation. Flow cytometry was used to analyze the apoptosis level of the four groups; Western blotting and immunocytochemistry were used to detect apoptosis-related protein and pathway protein phosphatidylinositol 3-kinase/ protein kinase B (PI3K/ Akt), nuclear factor-κB (NF-κB) expression. Results 1. Overexpression and inhibition of expression of TFF3 stable cell TFF3-TPC-1 and shRNA-TFF3-TPC-1 were constructed suscessfully. 2. The proliferation and cloning ability of TFF3-TPC-1 cells were significantly higher than those of ConTFF3-TPC-1 cells(P<0. 05 or P< 0. 01), the proliferation and cloning ability of shRNA-TFF3-TPC-1 cells were significantly lower than those of shCon-TPC-1 cells(P<0. 01); 3. The apoptosis rate of TFF3-TPC-1 cells was lower than that of ConTFF3-TPC-1 (0. 75%±0. 08% vs 5. 62%±0. 3%, P<0. 01),and the apoptosis rate of shRNA-TFF3-TPC-1 was higher than that of shConTPC-1 (22. 2% ± 1. 2% vs 5. 34% ± 0. 4%, P<0. 01); 4. After silencing TFF3 gene, the expressions of Bax, cytochrome C (Cyt-C), cleaved-Caspase-9, cleaved-Caspase-3 were up-regulated, and the expressions of Bcl-2, Akt, p-Akt and NF-κB-P65 were down-regulated (P<0. 05 or P<0. 01). Conclusion TFF3 may regulate the proliferation and apoptosis of TPC-1 cells by affecting the PI3K/ Akt/ NF-κB signaling pathway.
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Objective:To evaluate the vocal cord movement after stroke with laryngeal ultrasound. Methods:From January, 2017 to March, 2019, 41 patients with stroke following hoarseness were examined with laryngeal ultrasound and direct laryngoscope. The movement was graded from I to III, in which grades II and III were considered as vocal cord paresis or palsy. The results under ultrasound were compared to laryngoscope (gold standard). Results:For 82 sides vocal cords in 41 patients, 78 sides were consistent grading between laryngeal ultrasound and laryngoscopy, and the coincidence rate was 95.1%. The difference was mainly found in patients with bilateral vocal cord paralysis, two cases in total. Under ultrasound, one case was graded III (right) and I (left), and the other was graded II (right) and III (left); while under laryngoscopy, they were graded as III (right) and II (left), and III (right) and II (left), respectively. The specificity of ultrasound was 97.1%, and sensitivity was 85.7%, respectively.Kappa = 0.911, P < 0.001. Conclusion:Laryngeal ultrasound can be used for the diagnosis and evaluation of vocal cord movement after stroke.
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OBJECTIVE@#To provide the clinical anatomy data in physiological condition of the lingual artery in 64-slices spiral computed tomography angiography (CTA) for clinical treatment concerning the lingual artery.@*METHOD@#CTA examination of the carotid artery were performed on 80 adult volunteers. The 3D reconstruction images of the carotid artery with hyoid bone were obtained by using 64-slices spiral CT and image postprocessing workstation. The origin, pathway, and anatomic relations of the lingual artery in CTA were studied. The distance from the origin of the lingual artery to the bifurcation of the common carotid artery and tip of the greater horn of hyoid bone were separately measured, and the distance between the segment of the greater horn of hyoid bone of lingual artery and the middle of greater horn of hyoid bone were also measured.@*RESULT@#The pathway of the lingual artery had high variation, but the relative position between the segment of the greater horn of hyoid bone of lingual artery and the greater horn of hyoid bone were relatively constant. The lingual artery run forward approximately parallel to the greater horn of hyoid bone into tongue (2.32 +/- 1.29) mm in the superior to the greater horn of hyoid bone or (2.00 +/- 1.68) mm in the inferior to the greater horn of hyoid bone The distances from the origin of the lingual artery to the bifurcation of the common carotid artery and tip of the greater horn of hyoid bone were (12.93 +/- 7.36) mm and (10.40 +/- 5.75) mm separately.@*CONCLUSION@#The lingual artery could be clearly shown in CTA and the anatomy data in physiological condition of the lingual artery could be obtained by CTA. There was important instructive significance for clinical treatment concerning about the lingual artery.