OBJECTIVE: To study the correlation between ultrastructure of lymphatic capillary in pericancerous tissue and neck lymph node metastasis in laryngeal carcinoma. METHOD: Transmission electronic microscope was applied to observe and compare ultrastructure of lymphatic capillary in 8 normal laryngeal epithelial tissue and 12 pericancerous tissue of laryngeal cancer. RESULT: Lymphatic capillary of pericancerous tissue was significantly dilated compared with normal laryngeal tissue. A large amount of endothelial cell junction was open and devoid of basement membrane. Some endothelial cells of lymphatic capillary were destroyed or broken completely. CONCLUSION Ultrastructure of lymphatic capillary in pericancerous tissue is an important factor of laryngeal cancer metastasis through lymphatic system. This research offers theoretic basis for laryngeal carcinoma metastasis mechanism and prevention.
Aged ; Carcinoma, Squamous Cell ; pathology ; Case-Control Studies ; Female ; Humans ; Laryngeal Mucosa ; pathology ; Laryngeal Neoplasms ; pathology ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; Lymphatic Vessels ; pathology ; ultrastructure ; Male ; Microscopy, Electron, Transmission ; Middle Aged ; Neck ; Neoplasm Staging

OBJECTIVE: To assess the effect of CPAP therapy on sleep quality and quality of life in patients with moderate or severe OSAHS. METHOD: Seventy-two patients diagnosed as OSAHS by polysomnography (PSG) were assigned to receive CPAP therapy for 3 months. At baseline and three months after treatment patients underwent polysomnography (PSG). Analyze the results of PSG, sleep quality, excessive daytime sleepiness, quality of life and the general well-being. RESULT: The lowest average oxygen saturation and the average blood oxygen saturation improved significantly after CPAP therapy, and the longest sleep apnea time and AHI decreased obviously (P < 0.01). Except body pain, the other seven dimensions of SF-36 improved obviously (P < 0.01); ESS, PSQI and GWB also improved (P < 0.05). CONCLUSION For patients with moderate or severe OSAHS, CPAP therapy can obviously improve the sleep quality, excessive daytime sleepiness, improve patients' life quality and the general well-being.
Continuous Positive Airway Pressure ; Humans ; Oximetry ; Polysomnography ; Quality of Life ; Sleep Apnea, Obstructive ; therapy

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

T cell immune checkpoint pathways contribute to tumor immune escape. Many studies have shown that immune checkpoint is demonstrably correlated with tumor grade or prognosis in several types of malignancies and immune checkpoint has become a new biological index for tumor detection and prognosis. Immune checkpoint inhibitors have shown promising tumor outcomes in clinical trials for some advanced solid tumors and it will become a new target for cancer immunotherapy. In this review we will explore the correlation between expressions of immune checkpoint-associated genes and proteins in immune microenviroment and prognosis of head and neck squamous cell carcinoma, and specifically will discuss how this pathway can be manipulated with immune therapeutic drugs.