BACKGROUND:Wnt signal pathway is involved in the regulation of bone marrow mesenchymal stem cells differentiating into osteoblasts, promotes osteoblasts proliferation and differentiation, inhibits programmed death of osteoblasts, and indirectly affects the function of osteoclasts.
OBJECTIVE:To summarize the relationship between Wnt/β-catenin signal pathway and bone disease.
METHODS:A computer-based online search was performed to find papers published between January 2000 and January 2014 in CNKI database and Elsevier database. The key words were“Wnt/β-catenin, osteoblasts, bone marrow mesenchymal stem cells, osteoarthritis, chondrocytes”in Chinese. Documents concerning the effects of Wnt/β-catenin signal pathway on osteoblasts and bone disease were included.
RESULTS AND CONCLUSION:Wnt signaling pathway is consisted of Wnt/β-catenin signal pathway (Wnt typical signal pathway), Wnt/Ca2+signal pathway and Wnt/planar cellpolarity signal pathway. Wnt signaling pathway is one of the most important regulatory systems that plays a key role in modulating the differentiation, proliferation and programmed celldeath of osteoblasts, osteoclasts and chondrocytes. The role of Wnt signal pathway in patients with rheumatoid arthritis is mediated by osteoblasts. The inhibitory factor of Wnt signal pathway in osteoblasts is upregulated, which reduces the ratio of osteoprotegerin/receptor activating factor ligand, promotes the osteoclasts differentiation and immaturation. The researches addressing the components and effect of Wnt signal pathway are important for the special treatment of bone diseases and the prevention of osteoporosis or other bone diseases.

Objective To investigate the protective effect of ginsenoside Rb1 and Re on injury of the neonate rat cardiomyocyte induced by aconitine alkaloids.Methods The influence of aconitine and ginsenoside Rb1,Re together in neonate rat cardiomyocyte was observed respectively.The influence of these components in neonate rat cardiomyocyte was examined by myocard zymogram.The expression of Ca2+ channel gene Cav1.2 mRNA of neonate rat cardiomyocyte after treatment was observed by RT-PCR.Results The ginsenoside Rb1 and Re were able to decrease the release of AST and LDH,reverse Cav1.2 mRNA abundance induced by aconitine.Conclusion The ginsenoside Rb1 and Re which together with aconitine can alleviate the side effects and boost up the therapeutic effects of aconitine.The action mechanism may be relation with that the ginsenoside Rb1 and Re can decrease injuries of the neonate rat cardiomyocytes and abundant expression of Cav1.2 mRNA induced by aconitine.

Objective To investigate factors influencing the quality of life (QOL) of cancer patients with bone metastases. Methods Eighty-two cancer patients with hone metastasis were investigated.A questionnaire designed according to European Organization for Treatment of Cancer quality of life questionnaire ( EORTC QLQ-C30),Monroe Dunaway Anderson symptom inventory-Chinese edition (MADSI-C) and hospital anxiety and depression scale (HADS) standards was used to collect the information. Results The average total standardized QOL score of these cancer patients was 53.28±19.20.Among the function subscales,social function got the lowest average score (47.54),while among the symptom subscales fatigue got the highest average score (56.65).According to the MDASI-C,the most serious symptom burdens were fatigue,distress and pain; working and walking experienced the most interference.The symptom burdens correlated significantly with the QOL results.Twenty-four of the patients (29.3％) had been diagnosed with anxiety,and 17 (20.7％) were diagnosed with depression.Anxiety and depression continued to be significantly associated with overall QOL and its various dimensions. Conclusions The results　show that the burden of fatigue and pain,as well as of anxiety and depression are significantly associated with impaired QOL among cancer patients with bone metastasis.Work (housework) and walking were the most severely affected activities.Psychological rehabilitation should be focused on the comprehensive treatment of patients with bone　metastasis along with other appropriate rehabilitation strategies to enhance their overall functioning,relieve their　symptoms and improve their QOL.

Objective To investigate serum amino acid spectrum in patients with acute stroke in response to different nutritional support strategies and its effects on neurological function.Methods A total of 60 cases of acute stroke with dysphagia were randomly distributed into two groups:enteral nutrition group (30 cases) and control group (30 cases) using simple randomized design.Serum amino acid spectrum,hemoglobin,total protein,albumin,prealbumin,immunoglobulins,complement,and infection rate were assessed at three time points:within 48 hours,(7 ± 1) days and (14 ± 1) days after admission,and neurological deficit and activities of daily living are scored according to National Institutes of Health Stroke Scale (NIHSS) and Barthel Index (BI).Results (7 ± 1),(14 ± 1) days after admission,serum amino acid spectrum,hemoglobin,total protein,albumin,prealbumin,immunoglobulins,complement,and neurological deficit scores of enteral nutrition group patients were significantly better than those of non-enteral nutrition control group; and infection rate was lower than that of control group.Follow-up for a month,3 months,NIHSS of enteral nutrition group patients (9.0 ± 1.4,7.9 ± 1.3) were significantly better than nonenteral nutrition control group(11.1 ± 1.5,10.6 ± 1.4,F =46.042,P ＜ 0.05).While BI score seemed to be not insignificant different between enteral nutrition group (50.1 ± 1.8,52.0 ± 2.4) and control group (49.0±2.1,51.3 ±2.8,F=2.707,P＞0.05).Conclusion For patients suffering acute stroke with dysphagia,enteral nutrition support could reduce infectious complications,improve short-term neurological function and long-term prognosis by improving serum amino acids level and thus the whole body' s nutritional status.

Objective To investigate the fatigue experience of the community-dwelling frail elderly to establish the conceptual model.Methods Grounded theory was adopted.With MAXQDA v10.4.15.1for 3 levels coding,the conceptual model of fatigue experience of community-dwelling frail elderly people was structured through constant comparison and in-depth analysis.Results Multi-response,selfmanagement,safe and belonging,hitting rock bottom,accepting and transferring formed the conceptual model.Conclusions Based on the conceptual model,nurses should pay more attention to concern about the fatigue experience of community-dwelling frail elderly people,and probe different assessment methods to enrich comprehensive geriatric assessment (CGA),then improve the community health service level and the quality of elderly people's life.

Objective: To establish the quality control standard of Xiangshapingwei Pills (Rhizoma Atracylodis Pericarpium Citri Reticulatae Cortex Magnoliae Officinalis Radix Aucklandiae etc.)Methods: Rhizoma Atractylodis , Radix Auklandiae, Cortex Magnoliae Officinalis, Pericarpium Citri Reticulatae in Xingshapingwei Pills were identified by TLC. The content of hesperidin in Xiangshapingwei Pills was determined by RP HPLC with C 18 reversed phase column, mobile phase (methanol∶water∶acetic acid=30∶65∶5),detection wavelength at 283nm and flow rate 1.0mL?min -1 .Results: Hesperidin showed a good linear relationship at a rang of 0.8～4.0?g. r = 0.9993 . The average recovery was 96.7%, and RSD was 2.42%.Conclusion: The method is accurate and quick, and can be used for the quality control of Xiangshapingwei Pills.

Objective:To prepare the production of TIGIT-Fc fusion protein using H22 cells stably integrated the gene by lentivirus vector , and to explore the immunoregulatory effect on macrophages by TIGIT-Fc.Methods: TIGIT-Fc fusion gene were constructed by molecular cloning.The fusion gene was then subcloned to plasmids contained the secretion signaling peptide .The secrected TIGIT-Fc fusion gene was inserted into the lentivirus backbone vector.The purified lentivirus vector was the used to infect the murine H22 cell line.TIGIT-Fc protein was purified by protein A column from the ascites of H 22-injected C57BL/6 mice.Macrophages stimulated by lipopolysaccharide ( LPS ) was challenged to TIGIT-Fc treatment or control.Cytokine levels was then detected by ELISA.Results: TIGIT-Fc protein was purified from the ascites of H 22-injected mice.PVR was upregulated in LPS-treated macrophages.IL-10 level was upregulated in TIGIT-Fc treated macrophages.Conclusion: TIGIT-Fc promotes the mature macrophages to secrete anti-inflammatory cytokine IL-10.

Objective To assess the value of multi-slice spiral CT angiography (MSCTA) in diagnosis of posterior nutcracker syndrome (NCS). Methods MSCTA of 15 patients clinically diagnosed as posterior NCS (patient group) and 50 subjects with normal renal vessels (control group) were retrospectively analyzed. The anatomy, course and relationship to the adjacent structure of left renal vein (LRV) and its branches were observed. The anteroposterior diameter (d1) and cross areas (s1) of the angle of control group and posterior abdominal artery (AA), the anteroposterior diameter (d2) and cross areas (s2) at the largest lumen near the renal hilar were measured and the ratio of s2/s1 and d2/ d1 were calculated.Results All LRVs posterior AA of patient group were compressed and narrowing with dilating apparently near the renal hilar. The difference of d2 was not significant (P＞0.05), but of other values were significant (P＜0.05).Conclusion MSCTA can show anatomy and three-dimentional trend clearly of LRV for posterior NCS, and evaluate the extent of narrow and dilating lumen accurately with cross areas measuring.

Objective To Establish an evaluation index system of critical care nurses training in Chongqing. Methods A panel of experts was formed with 20 experts from related fields. By the use of Del-phi method, we designed a questionnaire survey and took two rounds of expert consultation and revision, screening the intensive care nurse training evaluation index. SPSS 17.0 statistical software was used to assess the experts involved in the study and to determine the weight of indicators at all levels. Results In the course of the investigation, the experts participating in the initiative was very high, and the authority coeffi-cient (Cr) was 0.896. The training evaluation system of critical care nurses in Chongqing was initially iden-tified, including 3 first-level indicators, 7 second-level indicators 7, 21 third-level indicators. Conclusion The preliminary construction of critical care nurse training evaluation system in Chongqing can promote the ICU specialist nurse training effect and guarantee the training quality, and at the same time it provides some reference for the training and evaluation of the health administrative department.

Objective To explore the impact of overweight and obesity on flow mediated dilation (FMD) in adult people.Methods Intact clinical data of 183 healthy people, aged 30~65 in our hosipital were analyzed.According to BMI, all people were divided into obesity group (48 cases), overweight group(75 cases) and normal group (60 cases).FMD was detected by E tracing of ultrasonic.Weight, WC, BFP, baPWV, BP,FPG,CHO,HDL-C,LDL-C,TG and UC were observed at the same time.FMD of three groups were compared and the risk factors of FMD were analyzed.Results The level of FMD in the obesity group and overweight group was significantly higher than that in the normal group[(5.63±2.76)%,(6.45±2.54)% vs.(8.31±3.04)%](F=13.77,P<0.001);there was no statistically significant difference between the obesity group and overweight group (t=1.68,P>0.05).Age(β=0.078,95%CI: 1.004,1.164),BMI(β=0.465,95%CI 1.148,2.208),LDL-C(β=2.294,95%CI: 9.918,1.612) and UC(β=0.007,95%CI 0.986,1.000) were independent risk factors of decreased FMD(P<0.05).Conclusion Age, BMI, LDL-C and UC are independent risk factors of decreased FMD.