1.Immune function alteration in children after tonsillectomy and(or) adenoidectomy.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2016;30(5):418-423
Tonsillectomy and(or) adenoidectomy are effective procedures for children with chronic tonsillitis, diseases associated with the tonsil and other adenotonsillar diseases, and obstructive sleep apnea-hypopnea syndrome. Since the tonsil and adenoid gland play a dual role in fluid and cell immunity, whether adenotonsillectomy results in the abnormal immune function in children after the surgery has always been the focus of attention. This review focuses on the alterations and impacts on immunity in children after tonsillectomy and/or adenoidectomy. Recent studies confirmed that in short term the immune index may be slightly reduced after the tonsil and adenoid resection in children, however, the decline has no clinical significance because the remaining mucosa-associated lymphoid tissue can compensate for removal of the tonsils and adenoids. Over time, the immune index tends to be normal. The children's postoperative short-term decline in the immune index will gradually recover to the preoperative level or there is no significant difference compared with that in normal children. Therefore, long-term immune function did not decline after tonsil and adenoid resection in children.
Adenoidectomy
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Adenoids
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surgery
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Child
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Humans
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Immunity, Cellular
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Palatine Tonsil
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surgery
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Postoperative Period
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Tonsillectomy
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Tonsillitis
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surgery
2.STUDIES OF REALGAR ON INDUCTION OF APOPTOSIS AND REVERSAL OF DRUG RESISTANCE IN HUMAN BREAST TUMOR CELLS MCF-7/ADM
Jun HU ; Jinyao ZHAO ; Peiman YANG
Acta Anatomica Sinica 2002;0(06):-
Objective One of the major obstacle to the successful treatment of cancer in clinic is the drug-resistance phenotype.In this study,the effect of realgar(REA) on the induction of apoptosis and the reversal of drug resistance were investigated. Methods Human breast cancer line MCF-7 and its adriamycin(ADM) resistant counterpart MCF-7/ADM cells were used in this study.15mg/L REA and 25mg/L REA were selected as non-cytotoxic dose and low-cytotoxic to MCF-7/ADM cells respectively by MTT assay.Then,they were adopted to affect the growth of MCF-7/ADM cells. MTT assay was used to analyze the effect of REA on drug sensitivity to ADM.The cells apoptosis was detected by transmission electron microscope and flow cytornetry.The expressions of anti-apoptosis protein Bcl-2 were detected by flow cytometry.Finally,the intracellular accumulation of ADM in MCF-7/ADM cells was detected by fluorescent-spectrophotometry. Results REA reversed the drug-resistance of ADM in MCF-7/ADM cells with dose-dependent relationship.When 15mg/L REA or 25mg/L REA was added into the culture,the 50% inhibitory concentration(IC_(50)) of ADM in MCF-7/ADM cells was reduced from 30.4mg/L to 13.2mg/L and 10.8mg/L(P
3.Anal cushion suspensory and external hemorrhoid airfoil-shaped suture in treatment of ring-ship mixed hemorrhoid
Haihua HU ; Jun CAO ; Bing YANG
Chinese Journal of Postgraduates of Medicine 2014;37(26):17-19
Objective To discuss the clinical effects of anal cushion suspensory and external hemorrhoid airfoil-shaped suture in treatment of ring-ship mixed hemorrhoid,improve the level of the surgical treatment of ring-ship mixed hemorrhoid.Methods One hundred and twenty patients with ring-ship mixed hemorrhoid were divided into treatment group (60 cases treated by anal cushion suspensory and external hemorrhoid airfoil-shaped suture) and control group (60 cases treated by Milligan-Morgan operation) according to the operation method.The postoperative pain,hospitalization time,wound healing time,postoperative complications,etc were observed and compared.Results The cure rate was 100.0% (60/60) in treatment group and 70.0% (42/60) in control group,and there was significant difference between two groups (P < 0.05).The hospitalization time,wound healing time was (8.58 ± 0.89),(14.00 ± 0.72) d in treatment group,(10.20 ± 0.30),(19.00 ± 0.21) d in control group,and there was significant difference between two groups (P < 0.05).The incidence of postoperative complications and the degree of postoperative pain in treatment group was lower than that in control group,and there was significant difference between two groups (P < 0.05).Conclusion Anal cushion suspensory and external hemorrhoid airfoil-shaped suture in treatment of ring-ship mixed hemorrhoid has advantage of shorter wound healing time,less postoperative pain,less postoperative complications.
4.Advance in research on dengue virus infection and replication
Bulletin of The Academy of Military Medical Sciences 2001;25(1):62-66,76
Dengue (DEN) virus is a member of the family flaviviridae which consists of a group of enveloped viruses with a single-stranded positive-sense RNA genome. DEN virus infection is initiated by the binding of envelope protein E to cellular receptor,followed by replication in cytoplasm which associated with a range of induced membrane structures. Further characterization of the DEN replication complex (RC) showed the involvement of NS1, NS2A, NS3, NS4A, and NS5 proteins as the viral replicase. The DEN virion maturation is associated with the cleavage of precursor of protein C by NS2B/NS3 protease and the glucosylase-mediated N-linked oligosaccharide trimming of prM, E protein. This review summarizes recent advance in research on DEN virus life cycle, emphasizing cellular receptor, RNA replication and virion assembly.
5.EFFECTS OF RNAi-MEDIATED GENE SILENCING OF E-CADHERIN EXPRESSION ON THE BIOLOGIC BEHAVIORS OF HO-8910 CELLS
Jun HU ; Shujuan SHAO ; Jinyao ZHAO ; Jin YANG ; Peiman YANG
Acta Anatomica Sinica 1954;0(02):-
Objective In many types of epithelial tumors,down-regulation or mutation of the epithelial cell-adherent molecule E-cadherin is associated with an increased invasiveness that can be prevented by the forced expression of the cell-adherent molecule.This suggests that E-cadherin is a latestage tumor suppressor that prevents invasion and metastasis.This study was to investigate cell invasion and migration status of human ovary serous cystadeno carcinoma HO-8910 cell line when the E-cadherin expression was down-regulated with RNA interference(RNAi) technology. Methods E-cadherin siRNA was transfected into HO-8910 cells to inhibit the expression of E-cadherin.The effect of RNAi was detected by immunofluoresence assay and Western blotting.The invasive ability of the cancer cells was determined by Transwell assay. Results After RNAi,the expressions of E-cadherin were significantly decreased from 63.7% to 11.9%(P
6.A comparative study of anterolateral thigh perforator flap with and without sensory nerve graft for sensation reconstruction in head and neck region
Heping YANG ; Hongwu ZHANG ; Shuxiong YANG ; Jun WANG ; Dawang HU
Chinese Journal of Microsurgery 2016;39(3):225-229
Objective To compare the operation effects of sensation restoration after tumor resection in the head and neck defects reconstruction by anterolateral thigh flap with or without sensory nerve transplantation.Methods The application of 76 cases anterolateral thigh flaps in head and neck defects reconstruction after tumor resection from May,2011 to May,2015 were observed.35 patients underwent simultaneous reconstruction with sensory nerve anastomosed perforator based anterolateral thigh flap and 41 patients underwent simultaneous reconstruction without sensory nerve graft based anterolateral thigh flap,which was named as group A and group B,respective ly.The treatment effectiveness of the two groups was compared and graded into First,Second and Third rate.Results All the 76 flaps survived.Satisfying morphology for the maxillofacial region and stage-one healing for the donor site was available.During the 24-week follow-up,group A were 65.71% (First rate),28.57% (Second rate),5.72%(Third rate) respectively,and the condition of group B were 31.70%,26.84%,41.46%.The treatment effectiveness of group A was better than that of group B.Postoperative complications were less than group B(P < 0.05).Conclusion Compared with the loss of nerve transplantation of anterolateral thigh perforator flap,sensory nerve anastomosed perforator based anterolateral thigh flap is of great value to reconstruct the defect after resection of tumor in head and neck region and restore the sensation of flap.
7.REVERSAL OF RESISTANCE TO ADRIAMYCIN IN MCF-7/ADM CELLS BY REALGAR IN COMBINATION WITH ?-ELEMENE
Jun HU ; Jinyao ZHAO ; Wei JIN ; Jin YANG ; Peima YANG
Acta Anatomica Sinica 2002;0(06):-
Objective To study the reversal effect of adriamycin (ADM) resistance in human breast cancer cell line MCF-7/ADM by realgar (REA) combined with ?-elemene (?-ELE), two types of anticancer drugs. Methods The sensitivity to ADM of MCF-7/ADM cells was studied by MTT assay.The intracellular accumulation of ADM in MCF-7/ADM cells was observed by fluorescent-spectrophotometry. Expressions of P-GP protein and Bcl-2 protein were detected by flow cytometry. Results The combined treatment of REA and ?-ELE could significantly enhance the cytotoxic effect of ADM on MCF-7/ADM cells to 4.2 fold as compared with the treatment of REA or ?-ELE respectively (P
8.Effect of atorvastatin on postoperative complications after the burr hole drainage of chronic subdural hematoma
Wenfu HU ; Jun LI ; Fei YANG ; Jiahe SUN ; Yicheng SONG
Chinese Journal of Postgraduates of Medicine 2017;40(1):56-59
Objective To explore the effect of atorvastatin on postoperative complications after the burr hole drainage of chronic subdural hematoma (CSDH). Methods The clinical data of 172 CSDH patients who had underwent the burr hole drainage were retrospectively analyzed. Among them 82 patients were given atorvastatin (atorvastatin group), and 90 patients were not given atorvastatin (control group). The postoperative complications were compared between 2 groups. Results All patients were followed up for 6 months. The total incidence of postoperative complications in control group was significantly higher than that in atorvastatin group:47.78%(43/90) vs. 31.71%(26/82), and the recurrent rate of subdural hematoma and incidence of subdural effusion in control group were significantly higher than those in atorvastatin group: 22.22% (20/90) vs. 8.54% (7/82) and 28.89% (26/90) vs. 12.20%(10/82). There were statistical differences (P<0.05). There were no statistical difference in the incidences of pneumocephalus, acute epidural/subdural hematoma and brain damage induced by drainage tube (P>0.05). Conclusions Atorvastatin can improve the prognosis of CSDH patients, especially in reducing the incidence of recurrent subdural hematoms and subdural effusion.
9.Efficacy and safety of caspofunjin on patients with refractory invasive fungal infections
Xianghong YANG ; Renhua SUN ; Jun HONG ; Bangchuan HU ; Liang XU
Chinese Journal of Practical Internal Medicine 2001;0(07):-
Objective To evaluate the efficacy and safety of Caspofunjin on invasive fungal infections in patients refractory to Fluconazole in ICU.Methods The open clinical trial was conducted in 44 invasive fungal infections patients who was refractory to Fluconazole,including 7 cases of confirmed,28 cases of suspected and 9 cases for empire treatment.They were treated with Caspofunjin in a dose of 70 mg in the first day,and then in a dose of 50 mg/d for 10~40 d.Results The cure rate of patients was 42.86%,the effective rate was 76.19%,and the eradication rate was 65.22%.All patients were well tolerated.Conclusion Caspofunjin is effective and safe in the treatment of severe invasive fungal infections.
10.Gastrointestinal absorption and pharmacodynamic research of insulin-loaded poly(lactic acid) nanoparticles for oral administration
Jun CHEN ; Yimu YI ; Xixiong YANG ; Yulan HU ; Mi XIE
Chinese Pharmacological Bulletin 2003;0(08):-
AIM To investigate the effect of DO C(deoxycholic acid) on the absorption of INS-PLA-NP[insulin-loaded poly(lactic acid) nanoparticles] in different sites of gastrointestinal tracts. METHODS After INS-PLA-NP that contained or did not contain DOC was adminitered to different sites in gastrointestianl tracts(stomach, small intestine and colon)of normal rats, the hypoglycemic effect was observed. RESULTS The hypoglycemic effect did not exist after intragastric administration of INS-PLA-NP whether or not DOC was added. The alleviatory hypoglycemic effect was evident after intraintestinal absorption of INS-PLA-NP. After DOC was added, the absorption of INS-PLA-NP was accelerated obviously and the hypoglycemic effect was strengthened significantly. Glucose levels hardly changed after INS-PLA-NP was administered to colon. With the use of DOC, a little hypoglycemic effect appeared. CONCLUSIONS The absorption of INS-PLA-NP in small intestine was accelerated and enhanced by DOC. DOC could be used as absorption enhancer of INS-NP in the future.