Objective To investigate the risk factors of postmenopausal osteoporosis ( PMOP) in Chongqing region,and provide the theoretical basis for osteoporosis prevention and treatment. Methods A hospital-based case-control study was conducted and standardized questionnaire was applied in this project. All patients were informed of the purpose of this study and signed an informed consent form. The protocol and consent form were approved by the Ethics Committee of Third Military Medical University. Non-conditional logistic model was used to estimate the association between risk factors and PMOP. Results After adjustment for some potential confounding factors,multivariate non-conditional logistic regression analysis indicated that family history of hip fracture ( OR = 8. 567,95% CI 3. 463 to 12. 620) ,lower body mass index ( OR = 3. 081,95% CI 1. 344 to 5. 632) ,and parities ( OR = 2. 539,95% CI 1. 263 to 4. 175) were significantly positive correlated with the incidence of PMOP. However,frequently exercise ( OR = 0. 276,95% CI 0. 152 to 0. 730) ,tea drinking ( OR =0. 354,95%CI 0. 209 to 0. 764) and older at menopause ( OR =0. 621,95%CI 0. 327 to 0. 942) were significantly negative correlated with it. Conclusion Family history of hip fracture,lower body mass index and higher parities are the risk factors of PMOP in Chongqing region. Besides,frequent exercise,tea drinking and proper endogenous estrogen level are the protective factors.

To observe the functions of Gualou Xiebai Banxia decoction（GXBD） on regulating lipid metabolism, anti-oxidation, and interposing ox-LDL/Lox-1 pathway, and to explore its anti-atherosclerosis (AS) mechanisms. AS models were established by using 42 Apo-E-/- male mice with high fat diet. AS model mice were randomly divided into the model group, simvastatin group, and GXBD high and low dose groups. C57BL/6J male mice were used as the normal control group, n=10 and the treatment lasted for 8 weeks. The levels of TC, TG, LDL-C, HDL-C, SOD, MDA, GSH-px, and ox-LDL in blood serum were tested 24 h after the last administration. The changes of aortic tissues structure were observed by HE staining; the expression levels of Lox-1 protein and the expression levels of mRNA were detected by Western blot and PCR respectively.Results showed that the blood lipid levels and MDA, ox-LDL levels in blood serum of model group were significantly higher than those in the normal control group, but SOD, GSH-px levels were significantly lower than those in the normal control group, and the Lox-1 protein and mRNA expression levels were also significantly higher than those in the control group(P<0.05), namely aortic atherosclerosis lesions were obvious in model group.The levels of blood lipid and MDA, ox-LDL of GXBD high and low dose groups and simvastatin group were significantly lower than those in model group, while SOD, GSH-px levels were significantly higher than those in model group, and Lox-1 protein and mRNA expression levels were significantly lower than those in model group(P<0.05), namely the aortic atherosclerosis lesions were significantly relieved. The above results indicated that GXBD was capable of modulating blood lipid, anti-oxidation, and inhibiting the expression of Lox-1, and interposing ox-LDL/Lox-1 pathway in the AS model Apo-E-/- mice, which may be one of the mechanisms of anti-atherosclerosis.

In order to investigate the promoting effect of low-intensity treadmill exercise on rat dorsal wound healing and the mechanism, 20 Sprague-Dawley rats were randomly divided into two groups: exercise group (Ex) and non-exercise group (non-ex). The rats in Ex group were given treadmill exercise for one month, and those in non-ex group raised on the same conditions without treadmill exercise. Both groups received dorsal wound operation with free access to food and water. By two-week continuous observation and recording of the wound area, the healing rate was analyzed. The blood sample was collected at day 14 post-operation via cardiac puncture for determination of the number of endothelial progenitor cells (EPCs) by flow cytometry, and the concentrations of relevant cytokines such as basic fibroblast growth factor (bFGF), endothelial nitric oxide synthase (eNOS) and vascular endothelial growth factor (VEGF) were measured by ELISA. The skin tissue around the wound was dissected to observe the vascular density under the microscope after HE staining, to detect the mRNA level of VEGFR2 and angiopoietin-1 (Ang-1) receptor using RT-qPCR, and protein expression of a-smooth muscle actin (αSMA) and type III collagen (ColIII) using Western blotting. It was found that the wound area in Ex group was smaller at the same time point than in non-ex group. The number of circulating EPCs was greater and the concentrations of vasoactive factors such as VEGF, eNOS and bFGF were higher in Ex group than in non-ex group. HE staining displayed a higher vessel density in Ex group than in non-ex group. Moreover, the mRNA expression of VEGFR2 and Ang-1 detected in the wound tissue in Ex group was higher than in non-ex group. Meanwhile, the protein expression of αSMA and ColIII was more abundant in Ex group than in non-ex group. Conclusively, the above results demonstrate Ex rats had a higher wound healing rate, suggesting low-intensity treadmill exercise accelerates wound healing. The present work may provide some hint for future study of treating refractory wound.
Actins ; metabolism ; Animals ; Collagen Type III ; metabolism ; Cytokines ; blood ; Endothelial Progenitor Cells ; cytology ; Male ; Nitric Oxide Synthase Type III ; blood ; Physical Exertion ; RNA, Messenger ; blood ; Rats ; Rats, Sprague-Dawley ; Receptor, TIE-1 ; metabolism ; Running ; Vascular Endothelial Growth Factor A ; blood ; Vascular Endothelial Growth Factor Receptor-2 ; blood ; Wound Healing

Objective The main cause of systemic inflammatory response syndrome(SIRS) after percutaneous nephrolithotomy(PCNL) was still unclear. The purpose of this study was to investigate the risk factors associated with SIRS after PCNL and establish the nomogram model. Methods A retrospective analysis of 213 cases of PCNL patients due to upper urinary calculi admitted to urology department in affiliated hospital of guilin medical college from December 2017 to December 2018 was performed. According to the occurrence of SIRS, patients were divided into SIRS group (SIRS patients) and control group (patients without SIRS). Logistic regression was used to analyze the risk factors of SIRS after PCNL, and a nomogram model was established based on logistic regression model. Results There were 54 cases in the SIRS group and 159 in the control group. Gender(OR=2.547, 95%cl:1.229-5.275), diabetes (OR=5.027, 95%cl: 1.442-17.525), calculi surface area (OR=2.657, 95%cl: 1.206-5.853), NLR immediately after surgery (OR=3.793, 95%cl: 1.749-8.02), operation time (OR=2.985, 95%cl: 1.305-6.826), and blood transfusion (OR=12.50, 95%cl: 12.50). 1.954-80.056) were the risk factors of SIRS after PCNL (P<0.05). Based on the results of the logistic multi-factor regression model mentioned above, visualized display of the model was achieved by using column and diagram. As the NLR ratio, operation time and stone surface area increased immediately after the operation, the score gradually increased, and the risk of SIRS gradually increased. The nomogram model established according to logistic regression model has good differentiation and model consistency (c-index =0.791). Conclusion According to the risk factors, such as gender, diabetes history, stone surface area, immediate postoperative NLR, the constructed nomogram model has good predictive efficacy, which is of guiding significance for clinical practice.