0.05). The movement and invasion ability were evidently inhibited in AQP1-siRNA groups compared with those in blank control groups and negtive control groups [(36? 3), (23?4)/HP vs(70?5),(65?4)/HP and(72 ?4),(69?4)/HP, respectively, P0.05).CONCLUSION The knock down of AQP1 by RNAi have no effect on the adhesion ability of Hep-2 cells, whereas could prevent the movement and invasion ability of laryngocarcinoma cells, which may be related with the metastasis of laryngeal carcinoma.

OBJECTIVE: To construct a kind of recombinant plasmid PGCsi-AQP1 delivery with DOPC and explore the inhibit effect of laryngeal carcinoma by RNAi targeting AQP1 in vivo. METHOD: Male BALB/c mice, 6 weeks of age transplanted with laryngeal carcinoma cell line Hep-2, four groups were divided randomly: Tail vein injection group (TVIG), Carcinoma around injection group (CAIG), negative control group (NCG) and blank control group (BCG). The recombinant plasmid PGCsi-AQP1 delivery with DOPC were inject into tail vein or surrounding tumor. HE pathological slides and tumor size were observed and inhibitory rate was figured up. The level of AQP1 protein expression and high microvessel density were detected by Immunohistochemical staining (IHC). RESULT: We constructed BALB/c mice models of laryngeal carcinoma successfully (1) HE staining: cell putrescence, nuclear pyknosis and apoptotic bodies were more in the tumor tissues of experimental groups than two control groups. (2) The total volumes of tumor in experimental group were both smaller than in two control groups (P < 0.01). The inhibition rate of TVIG and CAIG were 52.4% and 53.5% respectively and there was no significant difference (P > 0.05). (3) IHC: the AQP1 positive cells and microvessel density in TVIG and CAIG were both less than in two control groups (P < 0.01). CONCLUSION Neutral lipsomes DOPC could help carriaging the recombinant plasmid PGCsi-AQP1 to tumor and then play an inhibit role in laryngeal carcinoma tissue by RNAi targeting AQP1 in vivo.
Animals ; Aquaporin 1 ; therapeutic use ; Cell Line, Tumor ; Laryngeal Neoplasms ; therapy ; Liposomes ; Male ; Mice ; Mice, Inbred BALB C ; Neoplasm Transplantation ; Plasmids ; RNA Interference ; RNA, Small Interfering ; Random Allocation ; Transfection

Adult ; Aged ; Endothelial Growth Factors ; analysis ; physiology ; Female ; Humans ; Intercellular Signaling Peptides and Proteins ; analysis ; physiology ; Lymphokines ; analysis ; physiology ; Male ; Middle Aged ; Nasal Polyps ; chemistry ; etiology ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factor Receptor-2 ; analysis ; Vascular Endothelial Growth Factors

OBJECTIVE: To confirm the expression and distribution of aquaporin 1 in laryngeal carcinoma, and analyze the correlation to micro angiogenesis in the development of laryngeal carcinoma. METHOD: The expression and distribution of aquaporin 1 were examined by immunohistochemical technique in laryngeal carcinoma. New vessels were labelled using CD105 monoclonal antibody. Systematic analysis had been done on IMVD and data of clinical pathology. RESULT: Positive AQP1 cells and IMVD in primary carcinoma were higher than that in normal laryngeal mucosa. The expression of AQP1 was gradually increased with the decrease of differentiation grade of laryngeal carcinoma. The expression of AQP1 in lymphatic metastasis groups was higher than that of controls. CONCLUSION The expression of AQP1 in tumor cells and IMVD of primary laryngeal carcinoma are higher than normal. Not only is increased expression of AQP1 positive relevant to IMVD, but to lymphatic metastasis and malignant cell grading from laryngeal carcinoma. The increased AQP1 expression in epithelial cells of carcinoma and vascular endothelial cells may play a considerable role in growing, infiltrating, metastasis of malignant tumor by promoting vascular permeability.
Adult ; Aged ; Aged, 80 and over ; Aquaporin 1 ; metabolism ; Carcinoma, Squamous Cell ; blood supply ; metabolism ; Female ; Humans ; Laryngeal Neoplasms ; blood supply ; metabolism ; Male ; Microvessels ; Middle Aged ; Neovascularization, Pathologic

Objective To investigate the role of lymph vessel density (LVD) and microvessel pericyte coverage index (MPI) in the pathogenesis of nasal polyps.Methods Using immunohistochemistry and immunofluorescence double staining method,the expressions of albumin,D2-40 and CD34-α-SMA in 11 specimens of normal nasal mucosa,26 specimens of nasal polyp and 26 specimens of inferior turbinate tissue from patients with nasal polyps were investigated.The counts of microvessel density (MVD),lymph vessel density (LVD) and microvessel pericyte coverage index (MPI) were compared.SPSS 17.0 software was used to analyze the data.Results The nasal polyp group(0.269 ±0.096) had more albumin than inferior turbinate tissue group (0.159 ± 0.078) and normal nasal mucosa group (0.138 ± 0.045),the differences were significant (q value was 4.873,4.446,both P ＜ 0.05).The counts of MVD in nasal polyp group (30.52 ± 4.42) were not significantly higher than those in inferior turbinate tissue group (30.33 ± 6.03) and normal nasal mucosa group(28.21 ±6.84),the differences were not significant (q value was 0.130,1.147,both P ＞0.05).The MPI in nasal polyp group (0.291 ±0.096) was significantly lower than those in inferior turbinate tissue group(0.432 ± 0.101) and normal nasal mucosa group(0.416 ± 0.071),the difference was significant (q value was 5.399,3.680,both P ＜ 0.05).The counts of LVD in the nasal polyp group (0.245 ± 0.073) were significantly lower than those in inferior turbinate tissue group (0.431 ± 0.054) and normal nasal mucosa group (0.470 ± 0.078),the difference was significant (q value was 10.004,9.328,both P ＜ 0.05).MPI expression in the nasal polyp group was negetively correlated to albumin expression(r =-0.889,P ＜ 0.05).The LVD expression in the nasal polyp group was negetively correlated to albumin expression(r =-0.901,P ＜ 0.05).Conclusion Different LVD and MIP in nasal polyp tissues and normal nasal mucosa tissues imply that microcirculatory dysfunction plays a crucial role in the pathogenesis of nasal polyps.

Objective:To understand the sleep quality and mental health status of nurses in public health emergencies, and analyze the correlation between them.Methods:A total of 128 first-line nursing staff participating in public health emergencies on February 22-23, 2020 in Tianjin Beichen Hospital, Tianjin First Central Hospital, Tianjin Fourth Central Hospital were investigated by the general data questionnaire, Pittsburgh Sleep Quality Index (PSQI), and Symptom Checklist 90 (SCL-90).Results:70.3%(90/128) of nursing staff had poor sleep quality, and the total score of PSQI was (9.71±4.01) points, which was statistically significant compared with the domestic norm ( t value was 16.479, P<0.01). The total score of SCL-90 was 1.59±0.52, which was statistically significant compared with the domestic norm ratio ( t value was 4.505, P<0.01). One-way ANOVA showed that the nursing staff's age had a significant impact on sleep quality, and the difference was statistically significant ( F value was 4.092, P<0.05). Pearson correlation analysis showed that the Pittsburgh sleep quality scale index scores and symptom self-assessment scale and somatization, force, sensitive interpersonal relationship, depression, anxiety, hostile, terrorist, paranoia, and psychosis were positively correlated( r values were 0.292-0.444, P< 0.01). Conclusions:The sleep quality and mental health status of nurses in public health emergencies are poor, and the sleep quality is correlated with mental health status.