Nursing Grading Evaluation System for Patients with Stroke at Home: Construction, Validity and Reliability / 中国康复理论与实践

Objective:To construct a nursing grading evaluation indicator system for patients with stroke at home to provide a basis for graded care. Methods:Based on literature analysis, qualitative interviews and panel meeting, an evaluation indicator system was preliminarily drafted. June to September, 2018, the indicator system was consulted to experts three times. It was used to evaluate 210 patients with stroke at home from September to December, 2018 to test its reliability and validity. Results:The effective recovery rates of the three times of consultation were 85.00%, 89.47% and 100%, and the authority coefficient were 0.878, 0.879 and 0.879. The indicator system included four first-level indicators, 30 second-level indicators and 120 items. The scale-level content validity index (CVI) universal agreement was 0.733, average CVI was 0.927; the item-level CVIs were 0.83 to 1.00. For the overall level, the Cronbach's α coefficient was 0.928, and the Guttman Spilt half-factor coefficient was 0.794. For the dimensions, the Cronbach's α coefficient and the Guttman Spilt half-factor coefficients were all above 0.700. The correlated coefficients inter-evaluator of each indicators were 0.492 to 0.963 (P< 0.05). Conclusion:The nursing grading evaluation indicator system for patients with stroke at home is simple and operable, with satisfactory reliability and validity to grade the level of care for patients with stroke at home.

Chemical constituents of Curcuma kwangsiensis and their antimigratory activities in RKO cells.

Two new sesquiterpenoids, curkwangsien A-B (1-2), and seven known compounds (3-9) were isolated from rhizomes of Curcuma kwangsiensis. Their structures were elucidated by spectroscopic analysis, and the absolute configurations of compounds 1-2 were determined by the quantum chemical ECD calculations. Compounds 3-9 are firstly reported from this plant. In the in vitro assays, compound 3 was found to inhibit human colon cancer RKO cell migration in time-dependent manner.

Downregulation of DEC1 contributes to the neurotoxicity induced by MPP+ by suppressing PI3K/Akt/GSK3ß pathway.

AIM: Differentiated embryonic chondrocyte gene 1 (DEC1) is involved in the neuronal differentiation and development. The aim of this study is to investigate the role of DEC1 in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPP+ )-induced PD model. METHODS: The location of DEC1 and tyrosine hydroxylase (TH)-positive neurons were detected by immunofluorescence. 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse subacute model of PD was established to evaluate the change of DEC1 expression in midbrain. Then, SH-SY5Y cells were used to investigate the role of DEC1 in MPP+ -induced neurotoxicity. RESULTS: We showed that the co-expressed DEC1 and TH neurons took up more than 80% of the expressed TH neurons in the midbrain of mice. DEC1/TH double-positive neurons decreased by 40.6% in SNpc and 28.8% in VTA of MPTP-injured mice. Consistently, DEC1, TH and dopamine transporter (DAT) expression decreased in the midbrain of MPTP mice. In SY-SY5Y cells, MPP+ significantly suppressed DEC1 expression and increased the cleaved caspase 3/caspase 3 and Bax/Bcl-2. DEC1 overexpression relieved, whereas DEC1 knockdown aggravated MPP+ -induced cytotoxicity. Likewise, DEC1 overexpression and knockdown inversely regulated the expression of ß-catenin and PI3Kp110α (PIK3CA), an essential role in Wnt/ß-catenin and PI3K/Akt signaling pathways. Interestingly, LY294002, an inhibitor of PI3K/Akt signaling, aggravated, whereas LiCl, an activator of Wnt/ß-catenin signaling, abolished the reduction in DEC1 by MPP+ . It is established that these two pathways are interconnected by the phosphorylation status of GSK3ß. DEC1 overexpression increased but MPP+ and DEC1 knockdown decreased GSK3ß phosphorylation. CONCLUSION: Downregulation of DEC1 contributes to MPP+ -induced neurotoxicity by suppressing PI3K/Akt/GSK3ß pathway.

Molecular identification of heparin from pigs by allele-specific PCR (AS-PCR) and amplification refractory mutation system (ARMS) / 药学学报

The aim of this study is to develop a convenient and effective method for the identification of heparin from pigs (include Sus scrofa domestica Brisson and Sus scrofa riukiuanus). Based on sequences of D-loop region of pigs and the other animals, two pairs of highly specific primers were designed for distinguishing heparin of pigs from other animals. The primers were employed to amplify D-loop region of DNA templates extracted from pig and seven other animal species that amounted to 49 samples. AS-PCR (allele-specific PCR) and ARMS (amplification refractory mutation system) were all suitable for fast identification of heparin from pig with anneal temperature at 54-56 degrees C in AS-PCR and with wider anneal temperature in ARMS,at 52-58 degrees C. An about 170 bp DNA fragments were amplified from separately pigs and whereas no DNA fragment was amplified from other samples under the same reaction condition.

Micro-CT observation on blood vessels in tibial metaphysis of ovariectomized mice / 上海第二医科大学学报

Objective To observe the distribution of blood vessels in tibial metaphysis in ovariectomized and control mice by micro-CT(?CT),and investigate the relationship between bone regional blood supply and osteoporosis. MethodsForty mice were randomly divided into ovariectomy group(n=20) and control group(n=20).Four weeks after operation,?CT analysis was conducted to observe the bone blood vessel distribution after silicone rubber perfusion,and bone mineral density measurement,?CT bone microarchitecture analysis and biomechanical test were performed. Results Bone mineral density,bone microarchitecture in ?CT analysis,biomechanical properties and bone blood vessel distribution in ?CT analysis of ovariectomy group were significantly lower than those of control group(P

Studies on population difference of Dendrobium officinale II establishment and optimization of the method of ISSR fingerprinting marker / 中国中药杂志

<p><b>OBJECTIVE</b>To establish and optimize ISSR-PCR system of Dendrobiwn officinale according to the ISSR-PCR characters of D. officinale.</p><p><b>METHOD</b>The effects of ISSR-PCRs was examined by selecting primers and designing different concentrations of the factors in the ISSR-PCRs, the reliable ISSR-PCR systems for D. officinale populations researching was established by analyzing the reasons for occurrence of differential bands and optimizing reaction conditions.</p><p><b>RESULT AND CONCLUSION</b>The optimal ISSR-PCR system in D. officinale was reported for the first time, and 25 15327012 microL ISSR-PCR system contained 10 x Taq buffer, 1.5 U Taq DNA polymerase, 1.2-1.8 mmol x L(-1) MgCl2, 80 micromol x L(-1) dNTP, 0.2 micro mol x L(-1) primer and 20 ng template DNA. The appropriate annealing temperature was among 52-60 degrees C. ISSR PCRs were significantly influenced by Taq DNA polymerase, template DNA quantity and annealing temperature, etc. The ISSR-PCR systems, which were established in this paper for studying D. officinale, could provide clear reliable abundant polymorphisms molecular markers and were proved suitable for studying population authentication and population molecular ecology of D. officinale.</p>

Genetic diversity and molecular authentication of wild populations of Dendrobium officinale by RAPD / 药学学报

<p><b>AIM</b>Genetic diversity, relationship and molecular authentication of total 8 wild populations of Dendrobium officinale were investigated using RAPD markers.</p><p><b>METHODS</b>10 random decamer primers were screened for Random Amplified Polymophic DNA (RAPD) fragments. A DNA molecular dendrogram was established based on cluster analysis by UPGMA (unweighted pair-group method with arithmetic average), and the relationship of the wild populations were analyzed, and all the wild populations were authenticated.</p><p><b>RESULTS</b>A total of 439 loci with an average of 43.9 loci per primer and 54.9 loci per population were amplified from 8 wild populations by 10 effective primers. In the total 104 amplified bands, 95 were polymorphic, corresponding to 91.35% genetic polymorphism. The genetic distances were 0. 590 to 0. 727, with an average of 0. 686.</p><p><b>CONCLUSION</b>Distinct genetic differences and extensive genetic diversity were presented among the wild populations. RAPD markers were an informative and useful tool for the genetic diversity, evaluation and authentication of wild populations of Dendrobium officinale. Primer S412 could be used to authenticate 8 wild populations completely.</p>

[An algorithm study on telecardiogram diagnosis based on multivariate autoregressive model and two-lead ECG signals].

OBJECTIVE: In view of the time delay caused by reconstruction of signals at remote sites, a direct classification method with high accuracy suitable for telediagnosis of electrocardiogram (ECG) signals is studied. METHOD: The data for analysis and classification was obtained from MIT-BIH database, including 300 samples each of normal sinus rhythm (NSR), atria premature contraction (APC), premature ventricular contraction (PVC), ventricular tachycardia (VT), ventricular fibrillation (VF) and superventricular tachycardia (SVT). An multivariate autoregressive (MAR) model based technique that could combine the signals of two ECG leads was presented to classify the ECGs directly, including MAR modeling performed on ECGs, and quadratic discrimination function (QDF) based classification by using MAR coefficients and K-L MAR coefficients. RESULT: Besides quick and convenient diagnosis, the accuracy of the proposed classification algorithm was as high as 98.3%-100%. CONCLUSION: The MAR modeling based technique is suitable for telecardiogram diagnosis. Comparing with single-lead ECGs, better classification results can be obtained through the combination of two-lead ECG signals.

Experimental Studies on Fructus Gardeniae in Decreasing Blood Sugar / 中药新药与临床药理

Objective To investigate the effect of decoction of Fructus Gardeniae in decreasing blood sugar level in normal mice and diabetes mellitus mice (DM). Methods DM mice models were induced by glucose, adrenalin, desamethasone and alloxan respectively. After treatment, the influence of Fructus Gardeniae on blood sugar level in normal mice and DM mice was observed. Results Fructus Gardeniae decreased the blood sugar level significantly in DM mice and slightly in normal mice. Conclusion Fructus Gardeniae is effective in decreasing blood sugar level in both normal mice and several DM mice.