Objective To investigate the relationship between job burnout and psychological health diathesis of the senior medical workers in Tianjin.Methods 263 medical workers were tested by Psychological Health Diathesis Scale (PHDS) and Chinese Maslach Burnout Inventory (CMB[).Results (1) Total detection rate of burnout was 69.3％.Detection rate of mild burnout was 43.0％,moderate 20.2％,and severe 6.1％.(2) Explain rate of self-concept and emotionality to the job burnout was 31.5％.Conclusion Job burnout is prevalent in the senior medical workers in Tianjin.Emotionality,interpersonal diathesis and self-concept,to some extent,can forecast job burnout.

Objective: To investigate the diagnosis and treatment of adult small bowel torsion in order to improve early diagnosis and improve prognosis. Methods: Clinical data of 43 cases of small bowel torsion from January 2012 to December 2017 were collected. All of them were confirmed by surgery as small bowel torsion. After admission, white blood cell count > 18 × 10⁹/L was found in 5 patients; and hemoglobin<100 g/L was found in 5 patients; abdomen CT examination in 39 patients showed 33 cases had intestinal torsion; 14 cases suggested possible mesenteric and root torsion. Results: All patients underwent surgical treatment. During the operation, there were 11 cases with intestinal torsion ≥ 720°; 13 cases underwent simple bowel torsion in surgical operation; 4 cases underwent decompression combined with reduction of the bowel; 1 case was treated with reduction and jejunostomy; and small intestine resection was performed for intestinal necrosis. Twenty-two patients had small bowel resection and jejunostomy was performed in 3 cases. The small intestine was resected 7-240 cm, with an average of about 66 cm. Conclusions Small bowel torsion should be diagnosed and operated as soon as possible. The suspected necrotic bowel should be removed and more healthy intestine should be reserved. The patient′s vital signs should be observed dynamically after operation to prevent the occurrence of intestinal necrosis and septic shock, to avoid excessive intestinal necrosis that would lead to postoperative short bowel syndrome, and to improve the patient's cure rate and reduce hospital stay.

Objective To establish a fast,stable,and sensitive zebrafish model of osteoporosis(OP)using different method.Methods OP models were induced by iron overload or prednisolone(Pred),and bone formation and mortality were observed.The groups were divided into:Control group,model group(include FAC group and Pred group),and positive control group(AC group).Ammonium ferric citrate was used as the model drug in the iron-overload induction method.For the Pred induction models,the modeling time for the Pred-3 days post-fertilization(dpf)method was 3～9 dpf,the modeling time for the Pred-5 dpf method was 5～10 dpf,and Pred was administered from 3 dpf and removed from 7～9 dpf for the Pred withdrawal method.To compare the anti-osteoporosis(OP)effects of commonly used drugs such as Alfacalcidol(AC),Calcitriol(CA),and Alendronate(AL),it's important to select a stable and sensitive positive control drug and to further optimize different staining methods and conditions.Results There was no significant effect of ammonium ferric citrate 500 μg/mL on bone formation.Bone formation and the length of the first vertebra were significantly decreased in the Pred group induced by Pred-3 dpf compared with those in the control group(P＜0.01,P＜0.05),but zebrafish mortality was higher.There was no significant difference between the Pred-5 dpf method,but bone formation was significantly reduced in the Pred withdrawal group(P＜0.01),with no mortality.Alfacalcidol,calcitriol,and alendronate all had anti-OP effects,with CA having the most sensitive and stable anti-OP effect.Alizarin red staining showed that the optimal dye parameters were 0.02%concentration for dyeing 2 h,with washing in 0.5%KOH and glycerol under the conditions of a 3∶1 ratio for 3 h followed by a 1∶1 ratio for 14 h.The result of staining showed that calcein was more sensitive for staining bone nodes and ARS staining was more sensitive for staining the first vertebra.Conclusions The Pred withdrawal method can be used to establish a rapid,stable,and sensitive OP model in zebrafish as a reliable model for studying OP.

OBJECTIVETo investigate the expression of interleukin-9 (IL-9) in colon cancer tissues and its clinical significance.

METHODSImmunohistochenmistry and qRT-PCR were used to detect the expressions of IL-9 protein and mRNA in 92 colon cancer tissues and paired adjacent normal tissues. The correlation of IL-9 expressions with the clinicopathological features and prognosis of the patients was analyzed.

RESULTSIL-9 protein and mRNA expressions were significantly higher in adjacent normal tissues than in the colon cancer tissues ( < 0.001). In colon cancer patients, IL-9 expression was significantly correlated with TNM stage (=0.013), Ducks stage (=0.025) and lymph node metastasis (=0.004) but not with gender, age, tumor size, differentiation or hepatic metastasis ( > 0.05). The survival time of colon cancer patients with positive IL-9 expression was significantly longer than that of patients negative for IL-9 expression (=0.015).

CONCLUSIONSIL-9 expression is lowered in colon cancer tissues compoved with in the adjacent normal tissues. IL-9 expression is negatively correlated with TNM staging, Ducks staging and lymph node metastasis but positively with good prognosis, suggesting its important role in the tumor microenvironment of colon cancer.

Our previous studies found that mitochondrial uncouplers CCCP and niclosamide inhibited artery constriction and the mechanism involved AMPK activation in vascular smooth muscle cells. BAM15 is a novel type of mitochondrial uncoupler. The aim of the present study is to identify the vasoactivity of BAM15 and characterize the BAM15-induced AMPK activation in vascular smooth muscle cells (A10 cells). BAM15 relaxed phenylephrine (PE)-induced constricted rat mesenteric arteries with intact and denuded endothelium. Pretreatment with BAM15 inhibited PE-induced constriction of rat mesenteric arteries with intact and denuded endothelium. BAM15, CCCP, and niclosamide had the comparable IC value of vasorelaxation in PE-induced constriction of rat mesenteric arteries. BAM15 was less cytotoxic in A10 cells compared with CCCP and niclosamide. BAM15 depolarized mitochondrial membrane potential, induced mitochondrial fission, increased mitochondrial ROS production, and increased mitochondrial oxygen consumption rate in A10 cells. BAM15 potently activated AMPK in A10 cells and the efficacy of BAM15 was stronger than that of CCCP, niclosamide, and AMPK positive activators metformin and AICAR. In conclusion, BAM15 activates AMPK in vascular smooth muscle cells with higher potency than that of CCCP, niclosamide and the known AMPK activators metformin and AICAR. The present work indicates that BAM15 is a potent AMPK activator.