OBJECTIVE To summarize the clinical experience of endoscopic thyroidectomy via suprasternal approach. METHODS Endoscopic thyroidectomy via suprasternal approach was performed in 35 patients with ultrasonic scalpel. RESULTS Operations were successfully performed in 35 patients. The mean operation times were 130 (105～190) minutes in 24 cases with subtotal lobectomy and 4 case with total lobectomy, 60 (50～70) minutes in 2 cases with isthmectomy, 228 (185～270) minutes in 2 case with bilateral subtotal lobectomy, 163 (140～215) minutes in 3 case with subtotal lobectomy and the contralateral ademona resection .The bleeding during operation was 5 to 40ml and the average hospital stay time was 4 (3～5) days. CONCLUSION Endoscopic thyroidectomy via suprasternal approach is a safe way with good cosmetic value.

Objective :To sutdy the effects of Shenyanling on chronic glomerulonephritis in rabbits. Meth-ods:Rat glomerular base membrane (GBM) and Freund＇s adjuvant were injected into rabbits subcuta-neously or intracutaneously to build the Steblay nephritis model. Shenyanglin was administered. Kidneyfunction was evaluated by measuring urine protein,urea nitrogen ,creatinine ,albumin and globulin in serumas wellas the histopathological changes of kidney were observed. Results:Compared with model group,Shenyanling could dose-dependently reduce the level of the urine protein,urea nitrogen and creatinine inserum and the damage of kidney;while,the serum albumin could maintain the normal level (P＜0.05).Conclusion:Shenyanling has protective effects on chronic glomerulonephritis in rabbits.

OBJECTIVE: To explore the possibility of 10-23DNAzyme becoming a new gene therapy for laryngeal carcinoma treatment at the cell level. METHOD: Thiosthorothioate 10-23DNAzyme specific to eIF4E gene mRNA 1059 was designed and synthesized, and its inhibition effects on the expression of eIF4E gene in Hep-2 cells were observed. RESULT: The expression of eIF4E gene was remarkable depressed after Hep-2 cells was transfected by DNAzyme. The level of inhibiting eIF4E in hep-2 cells transfected by DNAzyme was lower than that by only lipofectamine 2000 transfected and Hep-2. CONCLUSION The expression of eIF4E gene in Hep-2 cells 10-23DNAzyme can be highly blocked. It is a specific and effective gene therapeutic means.
Apoptosis ; Cell Line, Tumor ; DNA, Catalytic ; genetics ; DNA, Single-Stranded ; genetics ; Eukaryotic Initiation Factor-4E ; genetics ; metabolism ; Gene Expression ; Genetic Therapy ; Humans ; Laryngeal Neoplasms ; genetics ; RNA, Messenger ; genetics ; Transfection

[摘 要] 可变剪接是转录后水平的基因表达调控机制，也是导致真核生物转录组和蛋白质组多样性的重要途径。然而，可变剪接的异常是驱动肿瘤进展的重要推手。在肿瘤微环境中，肿瘤细胞、免疫细胞及肿瘤中其他类型细胞中mRNA的异常剪接，不仅参与塑造肿瘤细胞的恶性生物学行为和免疫逃逸，还促进支持肿瘤进展的免疫抑制性微环境的形成。靶向肿瘤相关剪接体组分、剪接调控因子、可变剪接产生的蛋白异构体和mRNA变异体，以及异常可变剪接产生的肿瘤新抗原已成为肿瘤治疗的新策略，已有基于可变剪接的肿瘤生物治疗项目进入到Ⅰ期临床研究阶段。基于可变剪接的肿瘤治疗面临安全性、长读测序和算法优化、核酸类药物递送等许多尚待解决的科学和技术问题，这些挑战的解决将为精准筛选肿瘤相关靶点和高免疫原性新抗原，突破传统疗法耐药瓶颈，增强免疫检查点阻断和CAR-T细胞等疗效提供新策略，开辟新领域。