Objective:To study the protective effect of glucagon-like peptide-1 (GLP-1) on the inflammatory damage induced by high glucose(HG) in placental trophoblasts HTR8/SVneo and its molecular mechanism.Methods:Trophoblasts HTR8/SVneo cells were cultured and divided into low glucose(LG) group treated with low glucose (5 mmol/L), HG group treated with high glucose (25 mmol/L), GLP-1 group treated with high glucose combined with GLP-1, miR-137+ GLP-1 group treated with high glucose combined with GLP-1 after the transfection of miR-137 mimic, miR-137 mimic group transfected with miR-137 mimic, negative control (NC) mimic group transfected with NC mimic, and miR-137 inhibitor group transfected with miR-137 inhibitor, NC inhibitor group transfected with NC inhibitor. Apoptotic rate, expression of miR-137 and IL-6 were measured.Results:The apoptotic rate and the expression levels of miR-137 and IL-6 in HG group were significantly higher than those in LG group. The apoptotic rate and the expression levels of miR-137 and IL-6 in GLP-1 group were significantly lower than those in HG group. The apoptotic rate and the expression levels of miR-137 and IL-6 in miR-137+ GLP-1 group were significantly higher than those in GLP-1 group. The apoptotic rate and the expression level of IL-6 in miR-137 mimic group were significantly higher than those of NC mimic group, the apoptotic rate and the expression level of IL-6 in miR-137 inhibitor group were significantly lower than those in the NC inhibitor group.Conclusion:GLP-1 is able to alleviate the inflammation injury of HTR8/SVneo induced by high glucose through the miR-137/IL-6 pathway.

BACKGROUND:Preoperative walking ability and activities are good predictors of functional recovery of patients after hip replacement. But these objective assessment tools are invalid to predict postoperative function of patients with no preoperative walking ability.
OBJECTIVE:To assess the effect of preoperative subjective physical activity questionnaire to predict the 6-month postoperative physical functioning outcomes in elder patients receiving hip arthroplasty, and to determine which aspects of patient’s characteristics influence 6-month postoperative physical activity.
METHODS:A two-center prospective audit was carried out in elder patients who underwent hip arthroplasty between November 2010 and February 2013. These patients were divided into three groups, including the group of total hip arthroplasty for fractures of the femoral neck, the group of total hip arthroplasty for osteoarthritis and the group of hemiarthroplasty for fractures of the femoral neck. Al patients had fulfil ed Longitudinal Aging Study Amsterdam-Physical Activity Questionnaire (LAPAQ) and Short Form 36 (SF-36) recal ing their physical activity at 2 weeks before the fal accident (for fractures of the femoral neck) or admission (for hip osteoarthritis). Preoperative demographic data were also col ected. Postoperative assessment regarding subjective physical activity assessment including LAPAQ and SF-36, and objective physical activity assessment including timed up and go test and six-minute walk test were evaluated at the time of 6-month postoperation.
RESULTS AND CONCLUSION:Total y 115 patients finished the study. Both preoperative LAPAQ and SF-36 can play a predictor to probe 6-month postoperative function of objective and subjective activity in patients with femoral neck fractures or hip osteoarthritis undergoing hip arthroplasty. Preoperative LAPAQ seems better than preoperative SF-36 to predict postoperative physical activity. For hip fracture patients, because preoperative objective function cannot be assessed, preoperative LAPAQ can play an effective and subjective index to predict postoperative function of objective activity, and physical functions can recover 70%-80%at 6 months postoperatively. For hip osteoarthritis patients, postoperative physical function can be increased by approximately 27%compared with before hip arthroplasty. Patient’s characteristics also affect the postoperative physical activity, and the occurrence of preoperative complications is a most important factor.

Objective To assess the clinical threatment results of pilon fractures managed with arthroscopyassisted minimally invasive percutaneous plate osteosynthesis (MIPPO).Methods 33 patients with pilon fractures were classified into 3 groups according to the Ruedi-Allgower classification:type Ⅰ in 26 cases,type Ⅱ in 5 cases,type Ⅲ in 2 cases,including 29 males and 4 females,aged 22 to 51 years,mean 31.5 years of age.All patients were treated with arthroscopy-assisted MIPPO with the postoperative follow-up time of 12 to 84 months.Results The clinical surgery efficacy according to Mazur's criterion was evaluated as excellent in 22 cases,good in 8 cases,fair in 3 cases.The excellent and good rate was 90.9％.Conclusion Arthroscopy-assisted MIPPO surgical treatment is an effective method for Pilon fractures with the advantages of good healing,minimal trauma and less complications,it is worthy of clinical application.