Acupuncture Therapy ; Adult ; Aged ; Aged, 80 and over ; Combined Modality Therapy ; Exercise Therapy ; Female ; Humans ; Male ; Middle Aged ; Osteoarthritis, Knee ; therapy ; Treatment Outcome

Objective: To analyze the uncertainty in the determination of formaldehyde in food stimulant.Methods: HPLC with pre-column derivation was used to determine formaldehyde in food stimulant.A calculation formula was established to identify the source of uncertainty and the combined uncertainty was evaluated.Results: The synthetic uncertainty in the determination of formaldehyde was 1.7% and the expanded uncertainty was 3.4%.The formaldehyde content in food stimulant was (1.320 ± 0.044) mg·L-1 (k =2).Conclusion: The study provides reference for the uncertainty analysis on formaldehyde content in food stimulant by HPLC with pre-column derivation.

Objective To explore clinical and pathological characteristics of neurological lesions in primary Sj(o)gren's syndrome (pSS).Methods Ten patients diagnosed as pSS with nervous system involvement were analyzed retrospectively with autoimmune antibody test,cerebrespinal fluid examination and Schivmer's test,six pSS patients with peripheral nervous system lesions (PNS-pSS) were examined with electromyography and nerve conduction velocity and four pSS patients with central nervous system lesions (CNS-pSS) were examined with cranial MRI to analyze their clinical and pathological characteristics.Salivary gland biopsy was performed for all the ten patients,sural nerve biopsy for those with PNS-pSS and brain biopsy or spinal autopsy for those with CNS-pSS.Results Clinically,six patients with PNS-pSS presented symmetrical sensory-motor peripheral neuropathy or pure sensory peripheral neuropathy and four patients with CNS-pSS presented multiple sclerosis,subacute transverse myelitis,encephalitis,pituitary stroke and acute meningitis with varied lesions in the myelin sheath and axon by electromyography and motor nerve conduction velocity.Cranial MRI showed lesions in the white matter of the brain,spinal cord and abnormal signals in the pituitary.Pathologically,sural nerve biopsy showed typical vasculitis and nonvasculitis characterized as degeneration of the axon and myelin sheath,salivary acinar gland biopsy showed its atrophy and infiltration with lymphocytes,and brain biopsy showed demyelination of the brain and spinal white matter,as well as infiltration of lymphocytes surrounding the veins,typical vasculitis and bleeding and necrosis of the pituitary.Conclusions Both central and peripheral nervous systems can be involved in pSS,with complicated clinical manifestations.Electrophysiology,cerebrospinal fluid tests and histopathological examinations by biopsy are essential in diagnosis for neurological lesions in patients with pSS.Inflammatory reaction of the blood vessels and tissues mediated by cell immunity may be involved in mechanism of its neurological lesions.

The data analysis of food supervision needs to reflect the integration of food safety and possible trend based on the fun-damental test data of stressed foods and their products. With the assessment and analysis on potential resources of hazard elements, the integrate management support of food safety could be achieved. The data management could be organized and evaluated through plan, collection, treatment and display, which might be assisted to establish data-link with process mining to enforce the prospect of food safety background and trend and to provide the support of food safety management.

Objective This experiment used the allogeneic bone marrow mesenchymal stem cells to cure the wound in rats .And to observe the effect and safety of bone marrow mesenchymal stem cells injection for wound heal -ing.Methods The rats with wound were divided into two groups .The rats bone marrow mesenchymal stem cells were isolated,cultured,purified,amplified and passaged.Flow cytometry instrument was used to identify the immune pheno-type of rats bone marrow mesenchymal stem cells .Local injected the rats-bone marrow mesenchymal stem cells in the rats.The difference of wound healing rate between the experimental group and control group were statistically ana -lyzed.Western blot was used to detect the expression of keratinocyte growth factor (KGF) in two groups.Histopatho-logical change of the wound was observed .Results The wound healing rate between the two groups had significantly statistical difference.After 3 days,7 days,14 days,the wound healing rates of the experimental group were (21.95 ± 8.11)%,(56.25 ±4.96)% and (79.85 ±5.44)%,respectively and which were better than those of the control group[(12.11 ±4.87)%,(30.24 ±1.53)%,(58.51 ±6.52)%](t=4.693,3.853,2.559,all P <0.05). According to the grading standards of the healing skin after HE staining ,the experimental group was better than the control group .According to the results of Western blot , the KGF protein expression of the experimental group was higher than the control group .Conclusion The allogeneic bone marrow mesenchymal stem cells may be an effective and safe method for the wound in rats .

OBJECTIVE:To investigate the preparing process and method of quality control of the podophyllotoxin film former METHODS:To sift the formula of podophyllotoxin film former with orthogonal function and to determine the content by second derivative UV-spectrophotometry RESULTS:The peak area of podophyllotoxin against the concentration was linear with a correlation coefficient of 0 9 999 over the range of 80～180?g/ml and detecting at wavelength 301 5nm～315nm CONC_LUSION:The preparing process of podophyllotoxin film former is simple and the method of quality control is feasible

ObjectiveTo evaluate the effect of sufentanil preconditioning on acute lung injury induced by intestinal ischemia-reperfusion (I/R) in rats and the role of opioid receptors.MethodsForty-eight male Wistar rats weighing 200-250 g were randomly divided into 6 groups ( n =8 each):sham operation group (group S) ; I/R group; sufentanil preconditioning group (group SPC) ; COTP (μ receptor antagonist) + SPC group; NTD (δ receptor antagonist) + SPC group and nor-BNI (κ receptor antagonist) + SPC group.Intestinal I/R was produced by occlusion of the superior mesenteric artery for 45 min followed by 2 h reperfusion in groups I/R,SPC,COTP +SPC,NTD + SPC and nor-BNI + SPC.Sufentanil 10 μg/kg was injected intravenously at 10 min before ischemia in groups SPC,COTP + SPC,NTD + SPC and nor-BNI + SPC.COTP 1 mg/kg and NTD 5 mg/kg were injected intravenously at 10 min before sufentanil injection in groups COTP + SPC and NTD + SPC respectively,while nor-BNI 5 mg/kg was injected intravenously at 15 min before sufentanil administration in group nor-BNI + SPC.The animals were sacrificed at 2 h of reperfusion,the intestinal tissue was removed for microscopic examination and intestinal damage was assessed and scored according to Chiu.Left lung tissue was also removed for microscopic examination (1 =normal,4 =severely injured).The apoptosis in lung cells was detected using TUNEL and apoptosis index (AI) was calculated.The expression of Bcl-2 and Bax proteins in lung tissues was detected using immuno-histochemistry and Bcl-2/Bax ratio was calculated.ResultsCompared with group S,Chiu's score,lung injury score and AI were significantly increased,expression of Bcl-2 and Bax proteins was up-regulated,Bcl-2/Bax ratio was significantly decreased in the other groups ( P ＜ 0.01 ).Compared with group I/R,Chiu' s score,lung injury score and AI were significantly decreased,Bcl-2 protein expression was up-regulated,Bax protein expression was downregulated,and Bcl-2/Bax ratio was significantly increased in group SPC (P ＜ 0.01 ).Compared with group SPC,Chiu's score,lung injury score and AI were significantly increased,Bcl-2 protein expression was down-regulated,Bax protein expression was up-regulated,and Bcl-2/Bax ratio was significantly decreased in groups COTP + SPC,NTD + SPC and nor-BNI + SPC ( P ＜ 0.01 ).ConclusionSufentanil preconditioning can attenuate lung injury induced by intestinal I/R by activation of opioid receptors in rats.

Objective To evaluate the effect of open reduction and multi-dimensional several pin fixation of Gartland type Ⅲ supracondylar fractures with late callus formation in children.Methods The study involved 37 children of Gartland type m supracondylar fractures with late callus formation undergone posteromedial elbow incision,open reduction via bilateral triceps sparing approach,several K-wire internal fixation and early functional rehabilitation from May 2009 to May 2011.There were 23 males and 14 females at 3-13 years of age (mean,7 years).Postoperative results were evaluated according to Flynn standard.Mean 9.5 months of follow-up was made.Results The results were excellent in 28 cases,good in five,fair in two and poor in two.No serious complications occurred after operation.Conclusion Open reduction and multi-dimensional several K-wire fixation is an effective treatment for Gartland type Ⅲ supracondylar fractures with late callus formation in children and hence provides a choice for clinical use.

The manipulation and direct mechanical measurement of single DNA molecule could give much information about its elastic properties. Single stranded DNA (ssDNA) of 100 bases was adsorbed onto flat gold surface fabricated by depositing gold onto mica surface. Atomic force microscope (AFM) was used to observe the surface topography with different ssDNA concentration. Then the ssDNAs were stretched by AFM tip and in 50% cases ssDNAs could be stretched.Various kinds of force curves have been observed due to the different interaction between AFM tip and ssDNAs.

Objective To investigate the effect of Zidan decoction containing serum on endometrial receptivity in uterine immunity environment,and then to discuss if it's effect on endometrial receptivity through its controlling the expression of cell factors which related to endometrial receptivity.Methods Mice's endometrium tissue samples and uterine Natural Killer (UNK) cells were obtained from pregnant mice on gd 4.5 days and gd 12.5 days.After endometrial glandular epithelial cells,endometrial stromal cells and UNK cells were separated through primary culture,epithelial cells and endometrial stromal cells at rate of 1 ∶ 1 a certain concentration UNK were mixed together and highly purified-cultured.Different concentrations of Zidan decoction was acted on the culture solution.FBS,black and aspirin control group were setup for contrast.The expression of LIF and VEGF which influenced by Zidan decoction in the immunity environment was assayed by Realtime-PCR.Results The expression of LIF and VEGF was significantly increased in the immunity environment of uterine (in 10％ Zidan decoction group,10％ aspirin group and 10％ blank control group:LIF was 2.10±0.20,1.98±0.14,0.90±0.05 separately,and VEGF was 3.17±0.31,2.52±0.09,0.92±0.06respectively,P＜0.05).Conclusion Zidan decoction could improve endometrial receptivity by increasing the expression of cell factor which related to endometrial receptivity with the help ofUNK paracrine.