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OBJECTIVE To explore the potential mechanism of the effect of Xuebijing injection （XBJ） on neurological function and survival of rats after cardiac arrest （CA）/cardiopulmonary resuscitation （CPR） based on the S-nitrosoglutathione reductase （GSNOR）/S-nitrosoglutathione （GSNO） pathway. METHODS The CA/CPR rat model was established by ventricular fibrillation. Using a sham operation group as control， high-throughput sequencing was employed to analyze and mine the differentially expressed genes （DEGs）. Enzyme-linked immunosorbent assay was used to determine the contents of GSNOR and GSNO in the hippocampus； the active components of XBJ were screened and subjected to molecular docking analysis with GSNOR. The rats successfully modeled using the same method were divided into model group （n＝30）， inhibitor （GSNOR inhibitor） group （n＝30）， XBJ group （n＝30） and XBJ+inhibitor group （n＝30）， and a sham operation group （n＝30） was set up. Neurological function was evaluated and survival status was recorded at 3 hours， 24 hours and 3 days after the first 89） drug intervention. The contents of GSNOR and GSNO in the hippocampus of rats were determined in each group at the 0191） above time points， and the relationship of the contents of GSNOR and GSNO with modified neurologic severity scale （mNSS） score was analyzed. RESULTS GSNOR coding gene was differentially expressed between the model group and the sham operation group. Compared with the sham operation group， GSNOR content increased significantly in the hippocampus of rats in model group， while GSNO content decreased significantly （P＜0.05）. The active components of XBJ， such as 4- methylenemiltirone and salviolone， could be bound to GSNOR protein， with the binding energy lower than －6 kcal/mol， mainly connected by hydrogen bonds. Animal experiments revealed that mNSS score and GSNOR levels in the hippocampus of rats in the model group were significantly higher than those in the sham operation group （P＜0.05）， while GSNO levels and survival rate were significantly lower than those in the sham operation group （P＜0.05）. The above indexes of rats were improved significantly in administration groups， the mNSS score in the XBJ group was significantly lower than that in the inhibitor group， the content changes of GSNOR and GSNO in the inhibitor group were more obvious than those in the XBJ group， and the various indicators in the XBJ+inhibitor group were significantly better than the XBJ group and the inhibitor group （P＜0.05）. GSNOR content was positively correlated with the mNSS score， and GSNO content was negatively correlated with the mNSS score （P＜0.05）. CONCLUSIONS XBJ can improve the neurological function of rats and enhance their survival rates after CA/CPR， the mechanism of which may be associated with the down-regulation of GSNOR and the up-regulation of GSNO.
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Objective To observe the biological characteristics of db/db mice, and to provide the basis for application of db/db mice in experimental research.Methods Spontaneous type 2 diabetes BKS.Cg-Dock7m +/+ Leprdb/JNju mice and wild type mice of the same age were used in this study.Their fasting blood glucose was determined at 8,12,16, 20 and 24 weeks of age, the body weight was recorded at 10, 12,16, 20 and 24 weeks of age, the levels of serum insulin, total cholesterol and triglyceride were measured, the organ weight and liver coefficient were determined, and the liver and pancreas were taken for pathological examination at 24 weeks of age.Results The db/db mice maintained a high level of fasting blood glucose and body weight.Levels of serum insulin, total cholesterol, and triglyceride were significantly higher than the wild type mice.Compared with wild type mice, liver weight and kidney weight were also significantly increased.Obvious pathological changes of liver and pancreas were observed in 24-week old db/db mice.Conclusions db/db mouse has obvious characteristics of type 2 diabetes, such as hyperglycemia, hyperlipidemia, and hyperinsulinemia, can maintain stable levels of high blood glucose,and is an ideal animal model for experimental study of type 2 diabetes mellitus.
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Objective To investigate the effect of controlled low central venous pressure(CLCVP) on blood loss and prognosis in different types of hepatectomy .Methods Two hundred and fifty seven patients underwent standard hepatectomy ,half liver resec‐tion or irregular partial hepatectomy from January 2011 to December 2012 in the First Affiliated Hospital of Chongqing Medical U‐niversity were retrospectively studied .Patients treated with CLCVP during hepatectomy were attributed to the CLCVP group .CVP of these patients were lowed to below 5 cm H2 O by minimizing fluid infusion and one or both of the following maneuvers :posture adjustment ,nitroglycerin administration .Alpha agonists were used when necessary to maintain the mean arterial pressure MAP at ≥60 mm Hg .Other patients been maintained with normal level of CVP by adjusting fluid administration were included in normal CVP group (NCVP) .Blood loss and transfusion volume ,length of hospital stay of the two groups were compared ,and the effects of different surgery type on CLCVP blood protection were evaluated .Results In the patients underwent standard hepatectomy or half liver resection ,intraoperative blood loss and transfusion were not statistically different between the two groups .While in the pa‐tients underwent irregular partial hepatectomy ,the CLCVP group suffered less blood loss and transfusion(P0 .05) .Conclusion The efficiency of CLCVP on blood protection during hepatectomy is influenced by the sur‐gery type ,the blood protection is found to be significant only in irregular partial hepatectomy .No relationship was found between CLCVP and postoperative hospital stay in all types of hepatectomy .
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Objective To evaluate the efficacy and safety of Haijiyi under nasal endoscope in the treatment of allergic rhinitis(AR).Methods 213 cases with AR were randomly divided into treatment group(112 cases) and control group(101 cases).Patients in the treatment group were treated with Haijiyi under nasal endoscope.The control group was treated with traditional microwave therapeutic equipment.Both two groups were followed up for 1 year,and long-term clinical efficacy was observed and compared between the two groups.Results The total effective rate of the treatment group was 80.4％,which was higher than 61.4％ of the control group,and the difference was statistically significant(P＜ 0.01).Conclusion Haijiyi CZB type in the treatment of AR has advantages of exact allocation,no bleeding,less complication,good long-term efficacy,which is worth clinical popularizing and application.
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Objective To discuss the clinical characteristics and surgical treatment for gastric cancer in the elderly.Methods Related literatures were reviewed to summarize the characteristics of elderly patients with gastric cancer,thus to evaluate the feasibility and strategy of surgical treatment for elderly patients with gastric cancer.Results Elderly gastric cancer patients often had one or more comorbidities,but most patients could accept gastrectomy and had a good prognosis.Conclusions Age is not the contraindication for surgery.Dealing with comorbidities in elderly patients,preventing the complications and performing the appropriate surgical method can result in a good therapeutic effect.
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Objective To study the expresion and significance of CXCR4 in gastric cancer(GC) and intra-abdominal metastasis.Methods Immunohistochemistry and PT-PCR were used to detecte the expresion of CXCR4 protein and CXCR4 mRNA in GC,lynph node metastasis(LNM),peritoneal metastasis(PM) and normal stomach(NM) tissues.Results There was no CXCR4 expression in normal gastric mucosa cell.The expression rate of CXCR4 in GC and PM was 59.4%,100% respectively(P
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Objective To analyze the clinicopathologic features,effect of surgical treatment and prognosis of elderly patients with gastric cancer.Methods The records of 84 elderly patients(aged 80 years or above) with gastric cancer who underwent operation in our hospital from 2000-2008 were analyzed retrospectively.Results Ten patients had early gastric cancer(1a,8 cases,1b,2cases),stage II 12 cases,stage III 45 cases(53.6%) and stage IV 17 cases.Among them,81% patients had one or more co-morbidities.Cardiovascular disease was present in 43 cases(51.2%).Resection rate was 85.7%(72/84).Radical resection rate was 60.7%(51/84).Limited nodal dissection(