Aiming at the characteristics of internship teaching in otorhinolaryngology, in the professional teaching of five-year program otorhinolaryngology,by adopting the means of strengthening the teaching of basic subjects, using endoscopic multimedia digital systems, and "5 +5" teaching model etc. can enhance students’ mastery of the theory of knowledge, improves their ability of clinical practice, and guarantees and improves the otorhinolaryngology teaching quality.

Objective To investigate the incidence of pain for the.elderly with dementia in our country.Methods The Chinese version of Doloplus-2 was used to assess pain in 103 patients with dementia.Results One or more specific diseases may cause pain in 94 patients,degeneration of bone and joint top of the list;69 patients with pain score geater than or equal to 5 points,the incidence of pain as much as 67% .Older persons in different age groups the incidence of pain is different,with the age increased the incidence of pain increased;different older age groups pain scores had no significant difference.Conclusion Pain in patients with dementia should be of great importance to the medical staff and give full play to the nursing staff in pain management.

Objective To explore the effects of prenatal exposure to lipopolysaccharide (LPS) on insulin resistance in adult offspring rats. Methods Nulliparous, time-matched Sprague-Dawley rats were randomly divided into two groups (n=10 for each group):control group and LPS group. On the pregnant day 8, 10 and 12, rats in control group and LPS group were administered intraperitoneally with saline 0.5 mL or LPS 0.40 mg/kg, respectively. The blood levels of fasting plasma glucose (FPG), insulin and Leptin were detected at 90 days of age in offspring. The steady state insulin resistance index (HOMA-IR) and insulin sensitivity index (QUICKI) were evaluated in adult offspring rats. Results Compared with the control group, blood levels of FPG (mmol/L:7.72 ± 0.42 vs 7.02 ± 0.42), insulin (mIU/L:8.78 ± 4.10 vs 1.51 ± 0.27) and Leptin (μg/L:3.88 ± 1.40 vs 1.00±0.33) were significantly increased in offsping of LPS group, as well as HOMA-IR (3.01±1.41 vs 0.47±0.09) in-creased, while QUICKI (0.57±0.07 vs 0.99±0.08) decreased in offsping of LPS-treated rats. Conclusion Prenatal exposure to LPS can result in abnormality of insulin resistance in offspring rats.

AIM To investigate the effects of piroxicam on transplanted Sarcoma S180 and the expression of COX 2,VEGF,FGF 2 and microvessel density (MVD) in tumor tissue METHODS Kunming mice were randomizedly divided into control group, FT207 positive group and 5, 2 5, 1 mg?kg -1 piroxicam groups One day after inoculation of 0 2 ml S180 cell suspension, FT207 and piroxicam were given by gastric intubation for 9 days The inhibitory rate on S180 was calculated routinely The expression of COX 2,VEGF,FGF 2 and MVD was detected by immunohistochemistry RESULTS The growth of S180 was significantly inhibited by piroxicam at the doses of 5, 2 5, 1 mg?kg -1 with the inhibitory rate of 31 4%,40 7% and 34 9% respectively The expression of COX 2 in the tumor tissue was also inhibited by piroxicam. Accordingly the expression of VEGF,FGF 2 and MVD was markedly inhibited in dose dependent manner by piroxicam CONCLUSIONS The results suggest that piroxicam has inhibitory effects on S180,and it also decreases the expression of COX 2 in tumor tissue. There is a relation ship between the expression of COX 2 and angiogenesis related factor Antiangiogenesis may be another mechanism for piroxicam to exert its chemopreventive and treatment effects.

OBJECTIVE: To investigate the effect of arsenic trioxide (As2O3) combined with cisplatin on expression of RASSF1A in nude mice with human nasopharyngeal carcinoma xenograft. METHOD: The models of human poorly differentiated nasopharyngeal carcinoma in nude mice were established and randomly divided into four groups, control group (NaCl group), As2O3 group, DDP group and As2O3 + DDP group. The expression of RASSF1A mRNA and protein were detected by Real-time RT-PCR and immunohistochemistry respectively. The methylation rate of RASSF1A promoter CpG islands was analyzed by HRM. RESULTS: Experimental groups could obviously inhibit the growth of tumor and up-regulate the expression of RASSF1A. The methylation rate of RASSF1A in transplanted tumors in experimental groups was lower than the control group. Especially As2O3 combined with DDP were superior to the single drug use. CONCLUSION As2O3 inhibits the growth of human nasopharyngeal carcinoma cell strain CNE2 xenograft in nude mice and increases mRNA expression of RASSF1A. As2O3 inhibits the malignant phenotypes of human nasopharyngeal carcinoma cells and reverses hypermethylation of RASSF1A.
Animals ; Arsenic Trioxide ; Arsenicals ; pharmacology ; Carcinoma ; Cell Line, Tumor ; Cisplatin ; pharmacology ; DNA Methylation ; drug effects ; Humans ; Mice ; Mice, Nude ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; genetics ; pathology ; Neoplasm Transplantation ; Oxides ; pharmacology ; Tumor Suppressor Proteins ; genetics ; Xenograft Model Antitumor Assays

Objective To explore the microsurgical techniques for total removal of the suprasellar cranio pharyngiomas via the pterional approach.Methods The clinical data of 28 patients with suprasellar craniopharyngio mas resected by the microsurgery was analyzed retrospectively.Results The tumors were total removed in 24 cases (86%)and subtotal resected in 4 cases(14%).The frequent postoperative complications are diabetes insipidus,hy perthermy,imbalance of water and electrolyte and lower level of hormone.Conclusion It is the key to get fine operation effect that removal sclerotin of base of skull as far as possible and releasing cerebrospinal fluid sufficiently,paying attention to protect the perforating branch and nourishing artery in each operative spaces.

OBJECTIVE:To study the effects of common percutaneous enhancers on transdermal permeability of cetirizine hy-drochloride(CET). METHODS:Using pH 7.4 phosphate buffer as receiving solution,accumulative permeation rate as index,mod-ified Franz diffusion cell was used to investigate the effects of common percutaneous enhancers on transdermal permeability of CET in skin of abdomen isolated from mice,such as azone (0.06%-2.5%),oleic acid (0.5%-10%),1,3-propanediol (0.5%-10%),propanetriol(0.5%-5%). RESULTS:1,3- propanediol had no improvement effect on the permeability of CET. 24 h accu-mulative permeation amount of CET in 0.06% azone,0.5% oleic acid and 1% propanetriol were the highest among same types, being 227.94,85.25 and 215.15 μg/cm2,respectively. CONCLUSIONS:Of four percutaneous enhancers,the transdermal enhanc-ing efficiencies from high to low are azone>glycerol>oleic acid>1,3-propanediol. Azone and glycerol have the conspicuous pene-tration enhancing effects.

Objective To explore the clinical application value of serum amyloid protein(SAA) and C reactive protein(CRP)in early diagnosis of hand‐foot‐mouth disease(HFMD)in children .Methods The serum/plasma levels of CRP and SAA in 81 children with HFMD(HFMD group)and 125 healthy children(healthy control group)were detected by using dot immunogold filtration as‐say .Data including white blood cell (WBC) count ,levels of CRP and SAA were obtained and analyzed .And diagnostic efficacies of these indicators were evaluated by using receiver operating characteristic (ROC) curve .Results The serum levels of SAA and CRP and WBC count in HFMD group were significantly higher than those in healthy control group ,and all had statistically significant differences(P<0 .05) .The area under the ROC curve(AUC) of SAA(0 .921) was higher than that of CRP(0 .728) ,SAA/CRP ra‐tio(0 .846) and WBC count(0 .721) for diagnosing HFMD ,there were statistically significant differences(P<0 .05) .Compared with CRP ,WBC count and SAA/CRP ratio ,SAA had better diagnostic efficacy .Conclusion As a new biomarker of infections ,SAA can effectively diagnose HFMD early and provide more sensitive reference to clinicians for early diagnosis ,which might be worthy of clinical application widely .

Objective To study the infection status of hepatitis C virus (HCV) in blood donors .Methods anti‐HCV was detec‐ted by using enzyme linked immunosorbent assay (ELISA) .HCV RNA was detected by using fluorescence quantitative polymerase chain reaction .Results The positive rate of anti‐HCV in blood donors was 0 .07% (109/163 782) .Among 109 positive donors ,80 donors were anti‐HCV positive while only one reagent was used ,and 29 donors were anti‐HCV positive when two reagents were used .80 cases were anti‐HCV positive in first donors and 29 cases were anti‐HCV positive in repeated donors .Among the 80 donors who were anti‐HCV positive while only one reagent was used ,72 samples according with the demand of nucleic acid test were tested by the nucleic acid test ,of whom HCV RNA was negative .Conclusion The positive rate of anti‐HCV in Yancheng donors could be lower than general population .There might be no change of positive rate of anti‐HCV in blood donors during the three years .The positive individuals could be negative in nucleic acid test while only one reagent was used in ELISA test .

ObjectiveTo investigate the role of T-type calcium channel in the spinal neurotoxicity of intrathecal (IT) lidocaine in rats.MethodsForty-eight adult male SD rats in which IT catheter was successfully implanted,weighing 230-270 g,were randomly divided into 4 groups ( n =12 each):dimethyl sulfoxide (DMSO)group (group D),lidocaine group (group L),mibefradil + lidocaine group (group M),normal saline + lidocaine group (group N).Another 12 rats served as control group (group C).DMSO and 10％ lidocaine 20μl were injected intrathecally in groups D and L respectively.After mibefradil 200 μg/10μl and normal saline 10 μl were injected intrathecally in groups M and N respectively,10％ lidocaine 20 μl was injected intrathecally in the two groups.The mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) were measured before IT injection and at 2,4,8 and 12 h and 1,2,3,4 and 5 d after IT injection (T0-9).Four rats were sacrificed at T6 in each group and their lumbar enlargements were removed for microscopic examination.ResultsCompared with group C,no significant change in MWT and TWL was found at each time point in group D,MWT was significantly increased at T1-8 and TWL was significantly prolonged at T1-7 in groups L and N,and MWT was significantly increased at T1-6 and TWL was significantly prolonged at T1-6 in group M ( P ＜ 0.05 ).Compared with groups L and N,MWT was significantly decreased at T1-4 and TWL was significantly shortened at T1-4 in group M ( P ＜ 0.05).Pathological injury was significantly reduced in group M as compared with groups L and N.ConclusionT-type calcium channel is involved in the spinal neurotoxicity of IT lidocaine in rats.