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China Oncology ; (12): 635-640, 2016.
Article in Chinese | WPRIM | ID: wpr-495067

ABSTRACT

Background and purpose:Thyroid carcinoma is a common endocrine tumor with an incidence that has increased over recent decades. The aim of the present study was to investigate the effectiveness of carbon nano-par-ticles-labeled lymph nodes in neck dissection for papillary thyroid cancer (PTC), focusing on the protectiveness for the recurrent laryngeal nerve (RLN) and parathyroid glands.Methods:Forty-eight patients with PTC treated from Apr. to Aug. 2015 were randomly divided into two groups. Group A patients (24 patients) were treated with lobectomy/total thyroidectomy plus unilateral/bilateral central lymph node dissection by conventional meticulous capsular dissection technique; Group B patients (24 patients) were treated with the same surgical procedures as group A, 5 min after the injection of carbon nano-particles. The operative time, intra-operative blood loss, incidence of RLN injury, incidence of transient hypocalcemia, the number of total lymph nodes and the ratio of metastatic nodes were collected and analyzed. Results:For unilateral lobectomy, the number of lymph nodes in group B was signiifcantly greater than that in group A (P<0.05). For total thyroidectomy, the operative time, and the incidence of transient hypocalcemia in group B were both lower than those in group A (P<0.05), and the number of total lymph nodes was signiifcantly higher than that in group A (P<0.05). In group B, the ratio of metastatic nodes were 26.7% (unilateral) and 33.3% (bilateral) in stained lymphnodes, and 11.8% and 25.9% in non-stained lymph nodes.Conclusion:The carbon nano-particles-labeled lymph nodes in neck dissection could facilitate to protect parathyroids and increase the number of lymph nodes, especially in total thyroidectomy plus bilateral central lymph node dissection.

2.
Article in Chinese | WPRIM | ID: wpr-485451

ABSTRACT

Objective To explore the expression of transient receptor potential channel 6(TRPC6)in human breast cancer cells, and to clarify the correlation of TRPC6 with the invasion potential of breast cancer cells. Methods The human breast cancer cell strains MCF-7 (hypo-invasion group)and MDA-MB-231 (hyper-invasion group)were cultured.The expressions of TRPC6 mRNA and protein in in two groups were detected by RT-PCR and Western blotting methods.Then the MDA-MB-231 cells were divided into control group and SKF96365 group, the effects of SKF96365 on the invasion ability of MDA-MB-231 cells invitro were explored by wound healing assay and Transwell experiment.Results The results of Western blotting and RT-PCR showed that the expression levels of TRPC6 mRNA and protein in MDA-MB-231 cells were higher than that in MCF-7 cells(P<0.05).The wound healing assay showed the numbers of migrating cells in 5,25 and 40μmol·L-1 SKF96365 groups (76.24±7.54, 45.33±4.50,25.12±1.57)were lower than those in control group (130.48±9.55)(P<0.05).The Transwell experiment results indicated that the invasiveness of MDA-MB-231 cells were inhibited significantly by SKF96365 compared with control group (P<0.05).Conclusion The invasion ability of human breast cancer MDA-MB-231 cells is promoted by upregulating the TRPC6 expression, which indicates that the TRPC6 may play role in the metastasis of human breast cancer.

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