AIM: To explore the mechanism underlying the therapeutic effects of hypoxia inhalation on asthma. METHODS: Guinea pigs were randomized into the normal group(NG), asthmatic group(AG) and the hypoxia inhalation-treated group(HITG). The model of asthma was established in the latter two groups through sensitization and induction with 10% ovalbumin(OA) and 1% OA, respectively. The animals in HITG were treated with hypoxia inhalation (13.0%?0.5% O 2/N 2 mixed gas). The content of serum cortisol, the number of eosinophils(EOS) and percentage of hypodense eosinophils(HEOS) in bronchoalveolar lavage fluid(BALF),the number of CD 4 +T-lymphocyte in peripheral blood(PB) and the tension of airway muscle were determined. RESULTS: (1)The content of serum cortisol was significantly higher in NG and HITG than in AG( P

Objective The paper proposed suggestions and measures for hospital scientific research management by statistical analyzing all the papers published from 2009 to 2013.Method By referring to research database of this hospital and by using Microsoft Excel,this research calculated the frequency distributions of different variables including quantity,publisher,disciplinary subject,and the author title as well as core author.Result 772 papers were published from 2009 to 2013,mainly in local periodicals.75.52％ of the title of first author are high-level or intermediate-level;86 core authors published 378 papers,account for 48.96％ of the total amount.Conclusion The number of research papers is increasing year by year.but the quantity and quality are still low.The research administorsshould take measures to encourage researchers to publish quality papers in periodicals with higher standards.

Objective To investigate the ultrastructural changes of hippocampus in the guinea pigs with chronic asthma and the effects of hypoxia treatment on the hippocampal ultrastructures. Methods The replicated animal model of chronic asthma was divided into hypoxia(low pressure chamber) treatment group, normal pressure hypoxia inhaling treatment group, non treatment group and control group. The ultrastructural changes of hippocampus were observed with electron microscope. Results Expanded rough endoplasmic reticulum, ruptured cloudy mitochondrion carina, decreased synaptic vesicles and swollen postsynaptic membrane, proliferation of astrocytes and microglia proliferated, swelling of cytoplasm, vacuolation, broadened milieu interspace of blood vessels, swelling of cloudy basement membrane with constricted duct cava were found. After hypoxia, clear neuron nucleoli, plenty organells, slightly expanded rough endoplasmic reticulum, fairly plenty synaptic vesicles, more dense post synaptic membrane and slightly broadened synaptic space were also found. No apparent pathologic changes were found in glial cells and the blood vessels. Conclusion Recurrent chronic asthma may result in the ultrastructural changes of hippocampus due to hypoxia. Treatment with low pressure hypoxia and normal pressure hypoxia may be helpful to the improvement of ultrastructural injury of hippocampus due to asthma.

ObjectiveTo observe the effect of combined acupuncture-medication anesthesia on visceral function of patients undergone laparoscopic cholecystectomy, and to furtherexplore its clinical and theoretical significance.MethodSixty patients who were going to receive laparoscopic cholecystectomy were enrolled and randomized into an observation group (combined acupuncture-medication anesthesia) and a control group (conventional general anesthesia) by the random number table, 30 subjects in each group. The total bilirubin (TBIL), alanine aminotransferase (ALT), aspertate aminotransferase (AST), urea nitrogen, creatinine, and Mini-Mental State Examination (MMSE) were observed to evaluate the effect of combined acupuncture-medication anesthesia on visceral function of patients undergone laparoscopic cholecystectomy.ResultBefore operation, there were no significant differences in TBIL, ALT, urea nitrogen, creatinine, and MMSE between the observation group and the control group (P>0.05), while the AST level of the observation group was significantly higher than that of the control group before operation(P<0.05). On post-operation day 1, there were no significant differencesin comparing ALT and AST levels between the two groups (P>0.05); the TBIL level in the observation group was significantly lower than that in the control group (P<0.01); there were no significant differences in comparing the urea nitrogen and creatinine levels between the two groups (P>0.05). The MMSE score of the observation group was significantly higher than that of the control group 6 h after the operation (P<0.01). on post-operation day 1, there was no significant difference in comparing MMSE score between the two groups (P>0.05).ConclusionThe combined acupuncture-medication anesthesia and conventional general anesthesia play equal effects on liver and kidney functions in laparoscopic cholecystectomy, thus the two anesthesia methods are both safe andeffective. The combined acupuncture-medication anesthesia has certain protective effects on brain function in early stage, and possibly produces certain protective effectson liver function.

Objective To investigate the clinical characteristics and surgical treatment of gastrointestinal stromal tumors (GIST) of the duodenum.Methods The clinical data of 39 patients with duodenal GISTs from 1992 to 2010 were analysed retrospectively.Results The most common symptoms of duodenal GISTs were alimentary tract hemorrhage,occuring in 18 cases of the 39 cases (46％).Clinical diagnosis established by CT in 22 cases (69％).Duodenoscopy performed in 18 cases established the definite diagnosis of GIST in 15 (83％).Duodenal GISTs were most commonly located in the descending portion of the duodenum in 27/39 cases (69％).All 39 cases received surgical treatment,with R0 resection in 34 cases,including partial resection of the duodenum in 47％ (16/34),pancreaticodenectomy in 35％(12/34),segmental resection of the duodenum in 3 cases,subtotal gastrectomy in 3 cases; One died perioperatively and postoperative complications developed in 9 cases,which were cured by conservative therapy.The 1,3,5 year survival rate was 90％,72％,41％ for those receiving R0 resection.Conclusions The abdominal CT scan with contrast and duodenoscopy are helpful to establish the diagnosis of duodenal GISTs.Surgical procedures depend on the size and site of the lesion for R0 resection.To decrease postoperative recurrence and prolong survival adjuvant therapy with Imatinib is necessary.

Objective To evaluate the diagnostic value of US, ECT, CT and MRI in primary hyperparathyroidism (PHPT). Methods Data of 34 PHPT patients with diagnosis confirmed by postoperative pathology were retrospectively reviewed from January 1, 1990, through March 31, 2004. Results The preoperative diagnosis in 22 out of 25 cases (88%) undergoing preoperative ultrasonography of the neck with a positive result was verified by intraoperative findings. For 99m Tc-MIBI, CT and MRI, the positive results were 95%, 69% and 100% respectively. Conclusion Ultrasonography and 99m Tc-MIBI should be considered as the first choice for preoperative loci localization in patients with PHPT. Ultrasonography and 99m Tc-MIBI in combination is more sensitive and accurate for the localization of PHPT.

Objective To explore the diagnosis and treatment of primary hyperparathyroidism (PHPT). Methods Clinical data of 35 cases of PHPT were retrospectively analyzed. Results 23 out of 26 cases (88.5%) undergoing preoperative ultrasonography with a positive result were verified by intraoperative (findings). For ECT, the positive rate was 21 out of 23 cases (95.5%). Unilateral neck explorations (UNE) was performed in 27 cases of parathyroidoma. Two cases of parathyroid hyperplasia were treated by UNE and the other two cases by bilateral neck exploration (BNE). The procedure for 3 cases of parathyroid carcinoma was the same as that for papillary thyroid carcinoma. Unilateral resection of thyroid and parathyroid was done in a case of parathyroidoma with malignant change. Emergency excision of parathyroidoma, after (emergency) medical management, was performed in a patient with parathyroid storm, and the symptoms (subsided) postoperatively. All cases developed hypocalcemia in various degrees after surgery, but the symptoms were relieved with the use of calcium gluconate. Conclusions PHPT could be diagnosed according to (co-elevated) calcemia and PTH. Ultrasonography and ECT should be considered as the methods of first choice for preoperative localization. UNE of parathyroidoma could be feasible if accurate image localizations are (available). Radionuclear guided parathyroid resection could be performed in the patients with ectopic parathyroid disease or lesions without accurate localization. Aggressive surgical exploration after medical control of (symptoms) is the first choice of treatment when parathyroid storm is diagnosed.

Objective To explore the CT manifestations of non-functional islet cell tumor(NFICT)Methods The findings of plain and enhancement CT scanning from 17 cases with NFICT,which were confirmed by the surgeries and pathological sections,were analyzed retrospectively.Ninty ml of non-ioniodine contrast reagent with 3ml/s injection flow rate was employed as the enhancer for measuring the arteriovenous double phase CT value of the pancreas and tumor.Results Tumors were found in all the cases who received CT scan.Compared with pancreatic substance in the CT plain scan,tumors with low density were found in 2 cases,tumors with mixed low density in 11 cases and tumors with isodensity in 4 cases.Local calcification in tumor was found in 5 cases.Various degrees of strengthening were showed in 17 cases with enhancement scanning.Obvious enhancement in arterial phase presented in 5 cases,moderate enhancement in 6 cases and slight enhancement in 6 cases.Conclusions CT plain scan of NFICT shows that the tumor margins are clear and some tumors have calcification.All tumors in the CT enhancement scanning show various degrees of enhancement,the persistent enhancement from arterial phase to portal vein phase is the characteristic manifestation of NFICT.

Objective To summarize the diagnosis and treatment of localized malignant peritoneal mesothelioma(LMPM). Methods A total of 68 cases of LMPM were analyzed retrospectively,including 65 patients in the literature concerning LMPM published in Chinese medical journals be-fore October 2014 plus 3 cases of LMPM admitted in The First Hospital of China Medical University in the same period. Results Among the 68 cas-es,30 cases were male,38 cases were female,with a male to female ratio of 1:1.27. Mean age was 57.6 years. Major clinical manifestations includ-ed abdominal pain or discomfort(76.9%)and palpable abdominal masses(58.5%). Patients(41.7%)had the history of exposure to asbestos. Among the 48 cases(92.3%)that underwent CT examination,ascites was found in 16 cases,and hepatic metastasis was found in 11 cases. Most of the tumors were epithelial type(76.7%),with a mean diameter of 12.2 cm. The main therapeutic strategy was combination therapy of cytoreductive surgery with intraperitoneal hyperthemic chemotherapy. Conclusion LMPM is a rare malignant tumor that occurs predominantly in old people. Symptoms and imaging examinations are untypical. The diagnosis is dependent on pathological examination. Combining several laboratory tests could help the diagnosis. Combination therapy of cytoreductive surgery with intraperitoneal hyperthemic chemotherapy provides an adequate and efficient treatment for LMPM.

OBJECTIVE:To study the effects of paclitaxel combined with cisplatin on the proliferation,migration and invasion of thyroid cancer cells SW579 and its mechanism. METHODS:Cells were divided into blank control group,paclitaxel group (3μmol/L),cisplatin group(30 μmol/L),drug combination group(paclitaxel 3 μmol/L+cisplatin 30 μmol/L). 48 h after culture,the relative cell activity was measured by MTT assay. Cell cycle was detected by flow cytometry. Migration and invasion of cell was tested by Transwell assay. The expression of phosphatase and tensin homolog deleted on chromosome ten(PTEN),protein kinase B(AKT),Cyclin D1,p27,matrix metalloproteinase(MMP)-2 and MMP-9 were detected by Western blot. RESULTS:Compared with blank control group,relative cell activity of all treatment groups were decreased;paclitaxel or plus cisplatin also made cell cy-cle arrest in G1 phase,and migration and invasion ability of cell were decreased;the expression of PTEN and p27 remarkably in-creased,while the expression of Cyclin D1,MMP-2,MMP-9 and phosphorylation of AKT were obviously reduced,with statisti-cal significance (P<0.05). Compared with single drug group,the effect of drug combination group strengthened,with statistical significance in above indicators(P<0.05). CONCLUSIONS:The inhibition effect of paclitaxel combined with cisplatin on the pro-liferation,migration and invasion of thyroid cancer cells SW579 cell will be strengthened,by a mechanism of up-regulating the ex-pression of PTEN and p27,down-regulating the expression of Cyclin D1,MMP-2 and MMP-9,inhibiting phosphorylation of AKT.