1. Cloning of FPS gene and its role in regulation of alkaloid synthesis in Fritillaria thunbergii
Chinese Traditional and Herbal Drugs 2017;48(5):971-978
Objective: Farnesyl pyrophosphate synthase (FPS) gene of Fritillaria thunbergii was cloned and the correlation between the expression content of gene and alkaloid accumulation was analyzed to explore the role of FPS gene in the regulation of alkaloid synthesis and metabolism. Methods: In this study, the new bulbs and different tissues of Fritillaria thunbergii varieties "Narrow leaf" "Broad leaf" and "New Meiyuan" were used to clone the full-length sequence of FPS gene via RACE technology. RT-qPCR and HPLC-ELSD technology was used to determine the expression of FPS in 10 different developmental stages and the content of alkaloid (Peimine and Verticinone), respectively. Finally, the correlation was analyzed. Results: The full-length cDNA sequence of FPS gene was 1 629 bp. Open Reading Frame (ORF) was 1 056 bp and encoded 351 amino acids. Among them, the tissue specific expression trends of FPS gene were same, flowers had the highest expression level, followed by the new bulb. The results of correlation analysis showed thatthe content Peimine and Verticinone had significant positive correlation with the expression level of FPS gene in "Broad leaf" and "New Meiyuan" (The correlation coefficients were 0.289 and 0.613, 0.427 and 0.622, respectively);FPS gene expression and alkaloid content in different tissues had a positive correlation (The correlation coefficients were 0.057 and 0.476, 0.085 and 0.495, 0.375 and 0.432, respectively). Conclusion: The full-length sequence of FPS gene was successfully cloned in this study. The FPS gene involved in the regulation of alkaloid synthesis and metabolism.
2.Bone substitutes augmentation combined with internal fixation versus internal fixation alone in treating proximal femoral fractures in the elderly: a meta-analysis.
Jian-bin WU ; Lei YANG ; Fei-ya ZHOU ; Yong-zeng FENG
China Journal of Orthopaedics and Traumatology 2016;29(6):543-552
OBJECTIVETo systematically review the effectiveness of bone substitute augmentation combined with internal fixation versus internal fixation alone in treating proximal femoral fractures in the elderly.
METHODSSubject term and keywords were searched from Pubmed, Cochrane databases and CNKI from database foundation to August 2015. Randomized controlled studies and qusi-randomized controlled studies on bone substitutes augmentation combined with internal fixation versus internal fixation alone for the treatment of proximal femoral fractures in the elderly were chosen. Postoperative re-displacement, re-operation rate, complications (infection and bone ununion), functional outcome, quality of life scores and muscle strength were seen as outcome indicators. Enumeration data were statistical analyzed by risk difference and 95% confidence interval. Measurement data were analyzed by standardized mean difference and 95% confidence interval. If the same measurement data were evaluated by different standards in different studies, standardized mean differences and 95% confidence interval were used. The methods of statistical analysis were used by Cochrane databases.
RESULTSEleven RCTs (677 patients) were included. Meta-analysis results indicated that bone substitutes augmentation combined with internal fixation occurred fewer re-displacement [SMD = -0.75, 95% CI (-1.03, -0.47)] and obtained better function [SMD = 0.40, 95% CI (0.20, 0.59)]. While there were no significant differences in reoperation rate [RD = 0.02, 95% CI (-0.05, -0.09)], pain at 1 week after operation [MD = -1.79, 95% CI (-13.55, -9.96)], pain ranged from 6 to 8 weeks [MD = -7.24, 95% CI (-20.07, -5.59)], postoperative pain at 12 weeks [MD = -0.32, 95% CI (-4.9, -3.55)], muscle strength [MD = 1.25, 95% CI (-6.98, -9.48)], bone ununion [RD = 0.02, 95% CI (-0.01, -0.05)] and postoperative complications [MD = 0.01, 95% CI (-0.03, -0.04)].
CONCLUSIONCompared with single internal fixation, bone substitutes augmentation combined with internal fixation for the treatment of proximal femoral fractures in the elderly less occur re-displacement and could obtain better functional recovery.
Aged ; Aged, 80 and over ; Bone Substitutes ; administration & dosage ; Female ; Femoral Fractures ; surgery ; therapy ; Fracture Fixation, Internal ; Humans ; Male ; Middle Aged ; Randomized Controlled Trials as Topic ; Treatment Outcome
3.Evaluation of the MICROTEST 1 ESR analyzer and investigation of the reference value
Li-Ya LI ; Wei-Bin CHEN ; Feng GAO ; Shui-Fen SHEN ; Hui-Ping JIN ;
Chinese Journal of Laboratory Medicine 2001;0(03):-
0.37).Meanwhile a good correlation (Y=0.99X-0.18,r=0.987) was obtained. Though Westergren method correlated preferably with MICROTEST 1 (Y=0.86X+1.27,r=0.906),there was a markedly different (t=3.174,P=0.001).At last different references values were collected, according to sex and age.Male,32.5 mm/1 h(60 years old);Female, 34.03 mm/1 h(50 years old).Conclusions MICROTEST 1 correlated preferably with Westergren method.The examination by MICROTEST 1 needs small quantity of sample and fewer time.Furthermore,it has good repeatability and stability.The factors such as temperature and Hct have little influence on the results.The result suggested that it is suitable to apply MICROTEST 1 to large- scale clinical laboratory or other labs.But the reference value of ESR was influenced by age,which should be considered in clinical usage.
4.Multiple soft tissue defects of hand repaired by muliplefoliated tissue flap only pedicled by descending branch of lateral circumflex femoral artery
Wen-ya ZHANG ; Hui-guo WU ; Yu-xiang HU ; Dong-ning SONG ; Ya-fei HU ; Ke-luo NG JIA ; Ze-ang PAN ; Yun-feng WANG ; Bin-hui LI
Chinese Journal of Microsurgery 2011;34(4):280-282
ObjectiveTo introduction of perforator flaps,muscle flaps pedicled by descending branch of lateral circumflex femoral artery,method and their clinical application that multiple soft tissue defects of hand are repaire by muliplefoliated tissue flap only branch lateral circumflex femoral artery.MethodsFifteen patients with multiple soft tissue defects of hand were repaired muliplefoliated tissue flap only pedicled bydescending branch lateral circumflex femoral artery.At first,the anterolateral thigh perforator flap was designed and harvested according to the soft tissue defects of hand, then the descending branch lateral circumflex femoral artery was dissected at the same time the segmented perforator flap,fascia lata flap,rectus femoris muscle flap, vastus lateralis muscle flap, vastus intermedius muscle flap and distal spatium intermusculare flap were harvested in need according to distance among soft tissue defects.The muliplefoliated tissue flap was harvested only pedicled by descending branch lateral circumflex femoral artery, at last muscle flaps and fascia lata flaps were covered by skin graft, so the multiple soft tissue defects of hand were repaired in one time.ResultsNo vascular crisis happened. All skin grafts survived well, the contour of all repaired soft tissue defects was good and protective feeling was recovered by skin grafts of all flaps. All cases were got follow-up and the range was from 6 to 20 months(the average was 8.7 months).Wound of donor site healed well, muscle strength of quadriceps and motion of knee were normal. Three cases were excellent,nine cases were well and 3 cases were good, according to upper extremity function evaluation criteria of Chinese Medical Society for the Surgery of the Hand, the rate of good was 80 percent.ConclusionMultiple soft tissue defects of hand can be repaired by muliplefoliated flap only pedicled by descending branch of lateral circumflex femoral artery. Its advantages included reduction of operation time and treatment, good recovery of hand contour and function. It is a good method to repair multiple soft tissue defects of hand.
5.Relationship between CYP19 gene polymorphism and Alzheimer's disease
Kai-Feng LI ; Duo-Bin WU ; Xiao-Ya GAO ; Ya-Jie LIU ; Zhen-Hua LIU
Chinese Journal of Neuromedicine 2009;8(1):2-4
Objective To investigate the relationship between CYP19 gene polymorphism and Alzheimer disease. Methods Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to analyze the allele frequency distribution at the Mfe Ⅰ site of CYP19 gene in 102 patients with Alzheimer disease and 121 healthy control subjects. Results The frequencies of CYP19 ml and m2 alleles showed significant differences between the patient group and the control group (66.2% vs 81.0% and 33.8% vs 19.0%, respectively, X2=12.696, P<0.05). In patients with Alzheimer disease, the frequencies ofm1/m1, m1/m2, m2/m2 genotypes of CYP19 gene were 44.1%, 44.1%, and 11.8%, respectively, showing significant differences from the frequencies in the control subjects (65.3%, 31.4%, and 3.3%, respectively, X2=12.384, P<0.05). Conclusion CYP19 gene polymorphism at the Mfe Ⅰ site is associated with the genetic susceptibility to Alzheimer disease.
6.Development of the combined tumor therapeutic equipment.
Qi CHEN ; Bin XIONG ; Ya-zhu CHEN ; Xue-su FENG
Chinese Journal of Medical Instrumentation 2002;26(2):105-195
This paper describes the development of the combined tumor therapeutic equipment based on the theory of 1 + 1 = 3 or 1 + 1 > 3 tumor combined treatment synergism. It has become a promising and valuable method dealing with cancer tumors for its good adaptability, better effectiveness and convenience. The therapeutic equipment is combined with PC and MS windows operation system, and adopts intellectual temperature control device, which realizes homogeneous and smooth heating to intracavity tumor focus and automatic processing and statistical management of all case data. The equipment works stably and is of great value in clinical applications.
Algorithms
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Combined Modality Therapy
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Equipment Design
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Humans
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Hyperthermia, Induced
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instrumentation
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methods
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Information Storage and Retrieval
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Male
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Microcomputers
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Middle Aged
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Rectal Neoplasms
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therapy
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Software
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Therapy, Computer-Assisted
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instrumentation
8.Molecular epidemiology of noroviruses in Shenzhen in 2006.
Ya-qing HE ; Bin FENG ; Hai-long ZHANG
Chinese Journal of Epidemiology 2009;30(11):1214-1215
9.Effect of sappan wood on perforin mRNA expression in myocardium of rats after allogeneic cardiac transplantation.
Ya-bin ZHOU ; Feng-zhen YAO ; Jia-rui HAN
Chinese Journal of Integrated Traditional and Western Medicine 2003;23(5):370-372
OBJECTIVETo observe the effect of Sappan wood (SW) on the expression of perforin mRNA in myocardium of rats after allogeneic cardiac transplantation.
METHODSThe animal model of allogeneic (abdominal) cardiac transplantation was established by taking Wistar rat as provider and SD rat as receptor, perforin mRNA expression in the model's myocardium was detected by RT-PCR.
RESULTSSW could obviously reduce the perforin mRNA expression, it also could alleviate the pathological morphology and ultrastructural damage of myocardial cells.
CONCLUSIONSW has obvious effect in antagonizing immune rejection after transplantation, the mechanism of its immunosuppression could be through lowering the perforin mRNA expression.
Animals ; Drugs, Chinese Herbal ; pharmacology ; Fabaceae ; chemistry ; Heart Transplantation ; Male ; Membrane Glycoproteins ; biosynthesis ; genetics ; Myocardium ; metabolism ; pathology ; Perforin ; Pore Forming Cytotoxic Proteins ; RNA, Messenger ; biosynthesis ; genetics ; Rats ; Rats, Sprague-Dawley ; Rats, Wistar ; Transplantation, Homologous
10.Modulation on the P-glycoprotein in the jejunum by combined use of Glycyrrhiza inflata and Kansui.
Ya-Bin SUN ; Guo-Feng LI ; Zhong-Kun TANG ; Bing-Yi WU
Acta Pharmaceutica Sinica 2010;45(4):510-516
To investigate the modulation on the P-glycoprotein in the jejunum by combined use of Glycyrrhiza inflata and Kansui with ussing chamber and rt-pcr, Rhodamine 123 (R123), a P-gp substrate and fluorescein sodium (CF), a model drug of non-P-gp substrate transported by a passive diffusion were taken as investigational drugs. Because these two drugs can be easily assayed and widely used in various research fields. The permeability of R123 or CF via Wistar rat jejunum membranes was evaluated by in vitro ussing chamber after oral administration of four different decoctions of Glycyrrhiza inflata and Kansui for 1 week. And the concentration of R123 or CF was determined by the fluorospectrophotometry in the receiving solution. Meanwhile the expression of mdr1a in P-glycoprotein was detected by real-time fluorescent quantitative PCR. After oral administration of combined decoction of the single drug, the absorptive directed permeability of R123 increased significantly (P < 0.01). On the other hand, Kansui and combine decoction of the two drugs also decrease the permeability of secretory directed transport (P < 0.05). No action of Glycyrrhiza inflata was found on the secretory transport of R123 [Papp = (2.56 +/- 0.38) x 10(-5), cm x s(-1)] across the jejunum tissues, while Papp of control group was found [Papp = (2.35 +/- 0.27) x 10(-5), cm x s(-1)]. After oral administration of Kansui decoction for 1 week and 2 weeks, the levels of mdr1a expression in Wistar rats were lower than that of the control group, but there were no significant difference in the results. Meanwhile, Glycyrrhiza inflata had no effect on transport of CF across the jejunum tissues, though the other three groups could decrease the permeability of CF, as compared with control group. Kansui may slightly inhibit P-glycoprotein function in the intestinal membrane. For another, some compositions in Kansui inhibit P-glycoprotein function, and some others strengthen the tight junction between cells in the intestinal membrane to decrease permeability of CF. As the inhibitory action to P-glycoprotein was enhanced by combination of Glycyrrhiza inflata and Kansui, based on the results, it may be one of the mechanisms of creating toxicity once co-administration of Glycyrrhiza inflata and Kansui.
ATP Binding Cassette Transporter, Sub-Family B
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genetics
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metabolism
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ATP-Binding Cassette, Sub-Family B, Member 1
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antagonists & inhibitors
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pharmacokinetics
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Administration, Oral
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Animals
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Biological Transport
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drug effects
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Cell Membrane Permeability
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drug effects
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Drugs, Chinese Herbal
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administration & dosage
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isolation & purification
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pharmacology
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Euphorbia
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chemistry
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Fluorescein
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pharmacokinetics
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Glycyrrhiza
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chemistry
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Intestinal Absorption
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Intestinal Mucosa
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metabolism
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Jejunum
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metabolism
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Male
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Plants, Medicinal
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chemistry
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RNA, Messenger
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metabolism
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Random Allocation
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Rats
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Rats, Wistar
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Rhodamine 123
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pharmacokinetics