OBJECTIVETo study the rehabilitation effects ergometry on COPD patients.

METHODSThirty COPD out-patients in our Hospital were randomly divided into 2 groups. Rehabilitation group, 15 patients, performed leg ergometry exercise of 80% peak Watt x 30min/d x 3d/w x 12w. Another 15 patients were control group without exercise. All patients received conventional therapy. Pulmonary function testing (PFT), cardiopulmonary exercise testing (CPET), arterial blood gas analysis (ABG), Borg and CAT sores were done at both baseline and 12 w.

RESULTSThere was no statistically difference in lung function testing, blood gas analysis and cardiopulmonary exercise test when pre- exercises between 2 sub-groups. The IC, peak VO2 and peak, W of rehabilitation group significantly increased (P < 0.05); and Borg and CAT.scores significantly decreased (P < 0.05) from baseline; and other PFT and ABG did not change (P > 0.05). While there was no difference in control group (P > 0.05).

CONCLUSIONLeg submaximal ergometry rehabilitation improves health condition and ameliorate dyspnea symptoms in COPD patients.

Blood Gas Analysis ; Dyspnea ; therapy ; Exercise Test ; Exercise Therapy ; Humans ; Pulmonary Disease, Chronic Obstructive ; therapy ; Respiratory Function Tests

Objective To observe the effects of comprehensive measures of changing grain,selenium supplementation,off-site education and resettlement on prevention of children's Kashin-Beck disease in Aba state.Methods Fifty eight villages in Aba Kashin-Beck disease areas were chosen as intervention points in Aba state Sichuan province from 2007 to 2011.Based on the implementation of prevention and control measures,the villages were divided into off-site education + changing grain + selenium supplementation group and resettlement + off-site education + changing grain + selenium supplementation group,Geletuo town of Seda county,Ganzi state was selected as a control point,and right-hand anteroposterior X-ray examination(including the wrist) was carried out on children aged 6-13 from 2007 to 2011 annually.Clinical and X-ray diagnosis of Kashin-Beck disease was made in accordance with the Diagnostic Criteria of Kaschin-Beck Disease(GB 16003-1995).The effects of prevention and control measures were evaluated by comparing the child X-ray detection rate before and after the implementation of the measures.Results The average X-ray positive detectable rate of children in the intervention points was 2.07％(66/3181),2.72％ (69/2540),1.16％ (35/3017),0.56％ (19/3397) and 0.56％ (24/4273),respectively from 2007 to 2011,with a downward trend (x2trend =66.74,P ＜ 0.01).There was a downward trend in the average X-ray positive detectable rate of children in off-site education + changing grain + selenium supplementation group [1.60％(29/1809),2.63％ (39/1484),1.29％ (25/1941),0.64％ (15/2332),0.42％ (10/2379)] and resettlement + off-site education + changing grain + selenium supplementation group [2.70％ (37/1372),2.84％ (30/1056),0.93％(10/1076),0.38％ (4/1065),0.74％(14/1894)] (x2trend=30.97,35.19,all P ＜ 0.01).The average X-ray positive detectable rate of children in the intervention group was 0 from 2007 to 2010,and was 1.61％ (1/62) in 2011.The difference of X-ray positive detectable rate was not statistically significant in the control group in the 5 years from 2007 to 2011.The difference of children's X-ray positive detectable rate was not statistically significant between control group and intervention group.Conclusions The effect of taking changing grain,selenium supplementation,off-site education and resettlement comprehensive measures to prevent children's Kashin-Beck disease is not significant in those places where the state of Kaschin-Beck disease is not active.

Objective To investigate the correlation between ischemic stroke and both the risk factors and the degree of intracranial arterial stenosis, and provide evidence of preventing ischemic stroke. Methods Ninety patients with ischemic stroke were assessed by digital substraction angiography (DSA) and, accordingly, divided into group A (stenosis<30%) and group B (stenosis ≥30% or occlusion). The data about such risk factors as age, gender and family history, the levels of T-cholesterol (CHO), triacylglycerol (TG), high/low density lipoprotein cholesterin (H/LDL-C), apolipoprotein A1 (ApoA1), apolipoprotein B (ApoB) and lipoprotein A (Lpa) were recorded and analyzed; such diseases as hypertension, hyperlipemia, diabetes mellitus and coronary disease were taken into consideration. Results The incidence rate of intracranial arterial stenosis in these patients with ischemic stroke was 67.78%. Stenosis occurred most frequently in the middle cerebral arteries, less frequently in the intracranial segments of the internal carotid artery and the vertebral-basilar artery with the lowest occurrence in the posterior cerebral artery. Patients with ischemic cerebrovascular disease accompanied by high blood pressure, diabetes were more likely subjected to intracranial arterial stenosis; the regression coefficient, OR values, P values in patients with hypertension and diabetes were (1.659, 5.256 and 0.002) and (1.657, 5.241, and 0.046), respectively. The level of HDL-C (mmol/L) in the group B (0.99±0.30) was significantly lower than that in the group B (1.30±0.50, t=-3.603, P=0.001). Age, gender, smoking, stroke history, family history of cerebrovascular disease, the level of TC, TG, LDL-C, ApoA, ApoB, serum Lpa between the 2 groups showed no significant differences (P>0.05). Conclusion The major risk factors of intracranial arterial stenosis include hypertension, diabetes mellitus with HDL-C as its protective factors.

Aged ; Biopsy ; methods ; Humans ; Lung Neoplasms ; diagnosis ; surgery ; Male ; Mesothelioma ; diagnosis ; surgery

Female ; Humans ; Lymphoma, T-Cell ; diagnosis ; Middle Aged ; Multiple Myeloma ; diagnosis

OBJECTIVETo observe the expression of Runx2 in osteoblasts in response to centrifugation in vitro and discuss the function of bone morphogenetic protein (BMP) signal transduction pathway in this course.

METHODSCells were divided into four groups, group A, B, C and D, pretreated with DMEM containing 10% fetal bovine serum, 10% fetal bovine serum, 100 ng x mL(-1) Noggin and 100 ng x mL(-1) Noggin for 24 hours separately. 271 x g centrifugation was loaded for 5 min to these groups except group A and C, other conditions were the same. The total RNA of each group were extracted, and reversed transcription to cDNA after 30 min. The expression of Runx2 in response to centrifugation in vitro was analyzed by quantitative real time PCR.

RESULTSThe expression of Runx2 mRNA in group B was significantly higher than that in group A (P < 0.05). The expression of Runx2 mRNA in group D was significantly lower than that in group B (P < 0.05). There was no statistically significant difference among group A, C, D (P = 0.692).

CONCLUSIONBMP signal transduction pathway plays an important role in the response of osteoblasts to mechanical stimulations. It may also play a central role in the cascade information dissemination of osteoblasts.

Bone Morphogenetic Protein 2 ; Bone Morphogenetic Proteins ; Cell Differentiation ; Centrifugation ; Core Binding Factor Alpha 1 Subunit ; Gene Expression Regulation ; Humans ; In Vitro Techniques ; Osteoblasts ; RNA, Messenger ; Signal Transduction

Objective:To investigate the effect of STIM1 on the survival and proliferation of breast cancer cells and its preliminary mechanism analysis.Methods:Normal mammary epithelial cells MCF-10A as control,the expression of STIM1 in MCF7, HCC1569,MDA-MB-231 and BT549 breast cancer cells were detected by Western blot;STIM1 siRNA sequence(STIM1-siRNA group) were transfected into MDA-MB-231 cells,and the negative control group and the blank control group were set up,the protein expression of STIM1 in each group were detected after cells were transfected for 48 h;MTT method was used to detect cell activity cells were transfected for 24 h,48 h and 72 h;cell apoptosis was detected after cells were transfected for 48 h by flow cytometry;the mRNA expression of IL-6 and TNF-α were detected by RT-PCR;the expression of PCNA,Bcl-2,Bax,Caspase3,STAT3 and p-STAT3 protein were detected by Western blot.Results:The expression of STIM1 protein in breast cancer cells was significantly higher than that in MCF-10A cells (P<0.05);the expression of STIM1 protein in MDA-MB-231 cells transfected STIM1-siRNA was significantly lower than the control group(P<0.05);compared with the control group,cell viability in STIM1-siRNA group decreased significantly in cells were transfected for 48 h and 72 h,the apoptosis rate in 48 h was significantly increased,the expression of IL-6 and TNF-α mRNA sig-nificantly decreased,the expression of PCNA,Bcl-2 and p-STAT3 protein were significantly decreased,the expression of Bax and Caspase3 protein increased significantly.Conclusion:STIM1 gene is highly expressed in breast cancer cells.Inhibition of STIM1 expression by RNA interference can down regulate the activity of cancer cells,induce apoptosis,enhance immunity and by down regulation STAT3 signal.

Objective To assess the value of Montreal Cognitive Assessment(MoCA)in screening mild cognitive impairment(MCI)in elderly patients.Methods Thirty-two elderly patients with MCI and 50 healthy elderly subjects were examined with neuropsychological tests using Mini-mental State Examination(MMSE)and the MoCA. Results With a cut-off score of 26,the MoCA had a sensitivity of 96.87%and specificity of 76%for detecting MCI,and the sensitivity and specificity of MMSE were 56.25%and 96%,respectively.For the MoCA sub-items,the elderly patients with MCI had significantly lower scores than the healthy elderly in all the cognitive function measures (P＜0.05)except for abstraction and fixed orientation.In MMSE sub-items,significant differgnces were found between the two groups in only calculation/attention and delayed recall(P＜0.05).Conclusions The MoCA is a highiy sensitive scale for screening MCI in elderly patients,which allows comprehensive assessment of the cognitive function of MCI patients and is applicable in detecting MCI in patients with normal MMSE results.

ObjectiveTo investigate the intervention effect of Danggui Buxuetang on oxidative stress and inflammatory response in diabetic kidney disease （DKD） rats from its improvement of podocyte mitochondrial dysfunction. MethodSD rats were randomly divided into the control group and modeling group， and the ones in the latter group rats were fed a high-glucose and high-fat diet and then intraperitoneally injected with a small dose of streptozotocin （STZ） for inducing type 2 diabetes. The successfully modeled rats were randomized into the model group， high- and low-dose （1.44 and 0.72 g·kg^-1） Danggui Buxuetang groups， and irbesartan （0.017 g·kg^-1）group and gavaged with the corresponding drugs， while those in the normal and model groups with an equal volume of normal saline. After 20 weeks of drug intervention， the urinary microalbumin-to-urine creatinine ratio （UACR） and serum malondialdehyde （MDA） content and manganese superoxide dismutase （MnSOD） activity in each group were measured. The pathological changes in renal tissue were observed by Masson trichrome staining， and periodic acid-silver metheramine （PASM） staining， followed by the observation of ultrastructural changes in podocytes under the transmission electron microscope （TEM）. The expression level of reactive oxygen species （ROS） in rat kidney tissue was detected using a fluorescent probe dihydroethidium （DHE）. The protein expression levels of peroxisome proliferator-activated receptor γ -coactivator -1α （PGC-1α）， nucleotide-binding domain like receptor protein 3 （NLRP3）， and Wilms tumor protein-1 （WT-1） were measured by immunohistochemistry （IHC）， and the expression levels of NLRP3， interleukin-1β （IL-1β），and WT-1 in podocytes by immunofluorescence （IF） assay. The mRNA expression levels of PGC-1α and NLRP3 in the renal tissues were determined by real-time fluorescence quantitative polymerase chain reaction （Real-time PCR）， and the protein expression levels of PGC-1α， MnSOD， NLRP3， and IL-1β were assayed by Western blot. ResultCompared with the normal group， the model group exhibited elevated UACR and MDA content， weakened MnSOD activity （P<0.01）， glomerular hypertrophy， thickened basement membrane， mesangial hyperplasia， increased extracellular matrix， K-W nodules， podocyte mitochondrial swelling， disordered mitochondrial cristae， foot process fusion or loss， vacuolization， increased ROS （P<0.01）， enhanced NLRP3 and IL-1β but diminished WT-1 expression in podocytes， down-regulated PGC-1α mRNA expression （P<0.01） and PGC-1α and MnSOD protein expression （P<0.01）， and up-regulated NLRP3 mRNA expression and NLRP3 and IL-1β protein expression （P<0.01）. Compared with the model group， Danggui Buxuetang high-dose group significantly decreased UACR and MDA， enhanced MnSOD activity （P<0.05， P<0.01）， improved renal histopathology and podocyte mitochondrial ultrastructure， decreased ROS （P<0.05， P<0.01） and NLRP3 and IL-1β expression in podocytes， enhanced WT-1 expression in podocytes， up-regulated the mRNA and protein levels of PGC-1α and MnSOD， and down-regulated the mRNA and protein levels of NLRP3 and IL-1β （P<0.05， P<0.01）. ConclusionDanggui Buxuetang alleviates oxidative stress， reduces inflammatory response， protects kidney， and delays the progression of DKD possibly by improving the mitochondrial dysfunction in podocytes of DKD rats.

ObjectiveTo observe the effect of Danggui Buxuetang on the podocyte injury and receptor-interacting protein kinase 1/receptor-interacting protein kinase3/mixed lineage kinase domain-like protein （RIPK1/RIPK3/MLKL） signaling pathway in diabetic kidney disease （DKD） ratsand to explore its possible mechanism against DKD. MethodEight of the 50 SD rats were randomly classified intoa normal group， and the remaining were fed a high-glucose and high-fat diet for six weeks and then intraperitoneally injected with 0.035 g·kg^-1streptozotocin （STZ） for inducing type 2 diabetes. After successful modeling，they were randomized into the model group，high- and low-dose （1.44，0.72 g·kg^-1） Danggui Buxuetang groups， and irbesartan （0.017 g·kg^-1）group. After 20 weeks of drug intervention， the fasting blood glucose （FBG）， kidney index （KI），and urinary microalbumin-to-urine creatinine ratio （UACR）were detected in each group. The pathological changes in renal tissue were observed by hematoxylin-eosin （HE） staining， followed by the observation of ultrastructural changes in podocytes under the transmission electron microscope. The levels of tumor necrosis factor-α （TNF-α） and interleukin-6 （IL-6） in renal tissue of rats were determined by enzyme-linked immunosorbent assay （ELISA）， and the protein expression levels of RIPK1， RIPK3， and MLKL in rat kidney tissue by immunohistochemistry. The apoptosis rate of podocytes was detected by in situ nick end-labeling （TUNEL） assay. The mRNA expression levels of RIPK1， RIPK3， and MLKL in kidney tissue of rats were measured by real-time fluorescence quantitative polymerase chain reaction （Real-time PCR）， and the protein expression levels of RIPK， RIPK3， and MLKL and podocyte marker Wilms tumor protein-1 （WT-1） in rat kidney tissue were assayed by Western blot. ResultCompared with the normal group， the model group exhibited elevated FBG， UACR， and KI （P<0.01）， glomerular hypertrophy， thickened basement membrane， increased extracellular matrix， mesangial hyperplasia， foot process fusion or loss， enhanced apoptosis in renal tissue， up-regulated TNF-α and IL-6 levels （P<0.01） and RIPK1/RIPK3/MLKL mRNA and protein expression （P<0.01）， and down-regulated WT-1 protein expression. Compared with the model group， Danggui Buxuetang high-dose group significantly reduced the levels of FBG， UACR， and KI， improved renal histopathology， podocyte loss， and apoptosis in renal tissue， down-regulated TNF-α and IL-6 levels and RIPK1/RIPK3/MLKL mRNA and protein expression （P<0.05， P<0.01）， and up-regulated WT-1 protein expression. ConclusionDanggui Buxuetang alleviates podocyte injury and delays the development of DKD possibly by regulating the RIPK1/RIPK3/MLKL signaling pathway.