Adult ; Female ; Humans ; Male ; Middle Aged ; Motor Vehicles ; Occupational Health ; Physical Examination ; statistics & numerical data ; Young Adult

Targeting the key questions in the scale development process of TCM syndrome, such as the definition of the concept, the construction of the theoretical framework, the quantitative classification of the items, the rational use of the statistical methods and so on, this article put forward that on the basis of carefully distinguishing the three concepts of syndrome diagnosis, syndrome evaluation and disease diagnosis, and based on TCM dialectical thinking and mathematical validation to build theoretical framework. A scientific and reasonable quantitative classification method was established based on the reliability and validity as indexes. Non-linear intelligent mathematical statistics and symptomatic index groups were used to analyze the ideas and methods of data mining, with a purpose to improve and perfect the methodology of the development of syndromes scale and to improve the establishment and application of the syndrome scale.

Mitochondrial dysfunction has been implicated in the aetiology of sporadic Parkinson's disease but its role in the disease mechanism remains unclear.To investigate the effect of synuclein on mitochondrial dysfunction induced by rotenone.The human dopaminergic SH-SY5Y cells were used as a cell model.The cells over-expressed the wild-type ?-synuclein were treated with complex I inhibitor rotenone.The cell viability,complex I activity,Mitochondrial swelling and O2-content were tested at different time point-1w,2w,4w after rotenone treated.CCK-8 test results showed that the cell viability of overexpressed ?-synuclein(SH-SY5Y-Syn)was much lower than the control group(SH-SY5Y-Ctr).After administrating with rotenone about 1w or 2w the cell viability of SH-SY5Y-Syn became higher than that of SH-SY5Y-Ctr.On the 4th week the results were contrary to the first 2 weeks.Similar results were got when test the mitochondrial function.In the first 2 weeks after roteoone administrating,the mitochondrial function of SH-SY5Y-Syn was better than that of SH-SY5Y-Ctr.This suggest that the ?-synuclein could protect the mitochondrial against the injury induced by rotenone in the early stage-1w,2w,while this effect disappeared in the final stage-4w.

Objective:To identify the effect of ?-synuclein overexpression on mitochondrial membrane structure with atomic force microscopy. Methods:?-syn expression was mediated by AAV (adeno-associated viral vector) and Recombinant AAV/?-syn and AAV/LacZ viral particles were stereotaxically injected in the left side of rat substantia nigra (SN) for rat model of ?-synuclein overexpression. Mitochondria were isolated from rats SN of Brain. Mitochondria were analysis with JC-1 staining,atomic force microscopy and Western blot. Results:By 16 weeks post-infection of AAV-?-syn,the level of ?-syn increased about 2 times in mitochondrial fraction with Western blot and mitochondrial membrane potential (??) decreased with JC-1 staining. Furthermore,mitochondria swelling and porous like structure formed on the mitochondrial membrane with atomic force microscopy. Conclusion:The data suggested that ?-syn could accumulate in mitochondria,might form mitochondrial membrane pores and lead to ?? decreases. ?-syn might lead to mitochondrial dysfunction in Parkinson's disease.

Objective To observe the effect of transplanting the adipose-dervived stem cells(ADSCs) on free radical metabolism and immune function of rat aging model induced by D-galactose from fasiaology perspective;to explore a new method for anti-aging. Methods The ADSCs were cultured in vitro. Thirty male SD rats were randomly divided into 3 groups: normal control group(A), aging model group(B) and treat group(C). Ten rats in each group. Rats in B and C groups were injected D-galactose continually into make the sub-acute aging model rats.After 8-week injections of D-galactose;R3ats in group C were injected ADSCs(3×10~6/ml) through caudal vein. After 2-week transplantions of ADSCs, T-SOD, CuZn-SOD, MDA, NO, IL-2 and spleen index levels in serums of each group were detected and compared among the three groups. Results Compared with the A group, the SOD, NO, IL-2 level and spleen index in serum in group B decreased significantly, while the contents of MDA increased significantly. Compared with group B, the SOD, NO, IL-2 level and spleen index in serum in group C had been improved, and the contents of MDA decreased significantly. Conclusion Transplanting ADSCs can improve the antioxidant ability and strengthen the cellular immune function of aging rats.Further more, it can delay the ageing procedure induced by D-galactose in rats.

Fifty-eight samples belonging to 7 species of Arisaematis Rhizoma and its adulterants were collected. The ITS2 locus was employed as a DNA barcode and amplified, sequenced and assembled for all of the collected samples. Then, ITS2 sequences have been annotated using HMM-based method. The intra- and inter-specific variations were calculated and NJ tree was constructed using MEGA 6.0 software. The results showed that inter-specific K2P distances were significantly larger than intra-specific distances for all of the three origin species of Arisaematis Rhizoma. Furthermore, three origin species, Arisaema amurense, A. erubescens and A. heterophyllum, can be respectively formed to be a single branch with high bootstrap values. It is concluded that ITS2 can be used to correctly identify Arisaematis Rhizoma from its adulterants and the application of ITS2 in the identification of traditional Chinese medicine has an important prospective.
Arisaema ; classification ; genetics ; DNA Barcoding, Taxonomic ; methods ; DNA, Plant ; genetics ; DNA, Ribosomal Spacer ; genetics ; Drug Contamination ; prevention & control ; Drugs, Chinese Herbal ; chemistry ; classification ; Molecular Sequence Data ; Phylogeny ; Quality Control ; Rhizome ; classification ; genetics

OBJECTIVETo identify the Cynomorii Herba and its analogues species using DNA barcoding technique.

METHODTotal genomic DNA extracted from all materials using the DNA extraction kit. The internal transcribed spacer 2 (ITS2) regions were amplified using polymerase chain reaction (PCR), and purified PCR products were sequenced bi-directionally. Sequence assembly and consensus sequence generation were performed using the CodonCode Aligner 3.7.1. The Kimura 2-Parameter (K2P) distances and GC content were computed using MEGA 5. 0. Species identification analyses were conducted through the species identification system for traditional Chinese medicine and neighbor-joining (NJ) trees.

RESULTThe ITS2 sequence lengths of Cynomorii Herba were 229 bp. The average intra-specific genetic distances of Cynomorii Herba were 0.003. The average inter-specific genetic distances between Cynomorii Herba and its adulterants species were 0.760. The results showed that the minimum inter-specific divergence is larger than the maximum intra-specific divergence. The species identification system for traditional Chinese medicine and NJ trees results indicated that Cynomorii Herba and its adulterants species can be easily identification.

CONCLUSIONThe ITS2 region is an efficient barcode for identification of Cynomorii Herba, which provide a new technique to ensure clinical safety in utilization of traditional Chinese medicine.

In recent years, the focus of anti-cancer agents has gradually shifted from cytotoxic chemotherapy to molecular-targeted agents that interfere with frequently overexpressed or mutated molecules in cancer cells. Compared with cytotoxic chemotherapy, molecular-targeted therapy is a new biological therapy with higher specificity and lower toxicity, however, the adverse reactions caused by molecular-targeted agents cannot be ignored. Diarrhea is one of the most common adverse drug reactions, which could seriously affect the quality of life and even lead to treatment discontinuation and consequently decreased cancer control. To provide a reference for relevant research and clinical medication, we review the current reports on the incidence, pathogenic mechanism, and management of diarrhea induced by the molecular-targeted agents.

BACKGROUND:The researches about the effect of retinoic acid on the proliferation of adipose-derived stem cells are rare, and the researches on the testosterone are mainly on the inhibition of cellaging. OBJECTIVE: To study the effects of retinoic acid and testosterone or combination on the cellcycle of adipose derived stem cells. METHODS:Adipose derived stem cells were isolated from adult female Sprague Dawley rats with 2 months age and cultured in vitro til passage 3 adipose derived stem cells, and then the 3rd passage adipose-derived stem cells were performed with adipogenic induction, osteogenic induction and surface marker identification. The cells were divided into six groups:(1) Control group;(2) 10-5 mol/L retinoic acid group;(3) Retinoic acid group;(4) 10-5 mol/L retinoic acid+testosterone group;(5) 10-6 mol/L retinoic acid+testosterone group;(6) Testosterone group. The adipose-derived stem cells in the control group were cultured with Dulbecco’s modified Eagle’s medium+10%fetal bovine serum culture medium, and the adipose-derived stem cells in the other five groups were induced with corresponding dose of retinoic acid and testosterone on the basis of control group. After cultured for 36 hours, the flow cytometry was used to detect the changes of cellcycle. RESULTS AND CONCLUSION:Compared with the control group, cellproportions in phase G 1 of 10-5 mol/L retinoic acid group and 10-6 mol/L retinoic acid group were increased significantly, and the cellproportions in phase S were decreased. Compared with control group, the cellproportion in phase G 1 of testosterone group was significantly reduced, and the cellproportion in phase S was increased. Compared with 10-5 mol/L retinoic acid group and 10-6 mol/L retinoic acid group, cellproportions in phase G 1 of 10-5 mol/L retinoic acid+testosterone group and 10-6 mol/L retinoic acid+testosterone group were reduced significantly and the cellproportions in phase S were increased. Retinoic acid can inhibit the cellcycle of adipose-derived stem cells in phase G 1 , and delay the process of the cellcycle from phase G1 to phase S;while testosterone can promote the cellcycle of adipose-derived stem cells from phase G1 to phase S;the combination induction of retinoic acid and testosterone can accelerate the process of the cellcycle of adipose-derived stem cells from phase G 1 to phase S.

Objective To determine the effect of photochemotherapy on the expression of gelatinases. Methods Reverse transcription-polymerase chain reaction and gelatine zymography were employed to detect the effect of photochemotherapy on the expression and bioactivity of gelatinases at mRNA and protein levels respectively. Results Combination of ultraviolet A(UVA,0.8-2.0 J/cm2) and 8-methoxypsoralen(8-MOP,100 ng/mL) resulted in a decrease in the expression and bioactivity of gelatinases. Conclusion Photochemotherapy can inhibit the angiogenesis of endothelial cells through downregulating the expression and bioactivity of gelatinases.