1.Brand Strategy of Chinese Pharmaceutical Industry
China Pharmacy 2001;0(11):-
OBJECTIVE:To discuss the choice and the route for the realization of brand strategy feasible to Chinese pharmaceutical industry(CPI)in the current and future competition environment.METHODS:Reasons for the lack of influential brands were analyzed based on the current practical situation of CPI,then some countermeasures were put forward.RESULTS&CONCLUSIONS:Knowing the importance of brands and strengthening brands construction are the key issues for CPI to consider in the market competition,however,establishing national or even international brands is the long-term target of the future development of CPI.
2.Effect of nandrolone phenylpropionate on androgen receptor-mediated transcriptional regulation of target genes in rat scald models
Chinese Journal of Tissue Engineering Research 2015;(40):6509-6514
BACKGROUND:Moderate to severe burn and trauma, treatment of which has been paid equal attention to wound surface, is always a difficulty of clinical systemic treatment and has a poor prognosis. Anabolic hormones have acquired secure and good results in the treatment of burns in both animals and clinical patients. Although use of anabolic hormones is restricted by the doping management, but its androgen receptor and nuclear receptor coregulators are the newly emerging areas of interests in the field of gene regulation mechanism in recent years. OBJECTIVE:To investigate the effect of nandrolone phenylpropionate on androgen receptor-mediated transcriptional regulation of target gene in rat scald models. METHODS: Thirty-six rats were randomly divided into nandrolone phenylpropionate, model and control groups. In the nandrolone phenylpropionate and model groups, rats were subjected to a 20% total body surface area second-degree scald injury by hot water. Two days after model preparation, rats in these two groups were intramuscularly injected with nandrolone phenylpropionate and saline, once every other day, for a total of 21 days. RESULTS AND CONCLUSION:The gene expression levels of steroid receptor coactivator-1 and insulin-like growth factor 1 in the rat livers and gonads (testes, ovaries) were significantly different between the nandrolone phenylpropionate and model groups (P < 0.05), except steroid receptor coactivator-1 in the liver. There were no significant differences in steroid receptor coactivator-1, c-myc and insulin-like growth factor 1 in the rat livers and gonads (testes, ovaries) between model and control groups (P < 0.05). The results demonstrate that nandrolone phenylpropionate has different effects on the gene expression of steroid receptor coactivator-1, c-myc and insulin-like growth factor 1 in different tissues under different physiological and pathological conditions.
3.Antitumor effect of imperatorin enhances cytotoxicity of doxorubicin to HeLa cells
Chinese Journal of Pathophysiology 2015;(9):1578-1583
AIM:To determine whether imperatorin would enhance the effect of doxorubicin therapy on cervi -cal cancer in vitro.METHODS:The viability of HeLa cells treated with imperatorin and doxorubicin was determined by MTT assay in vitro.The expression of Bcl-2 protein family ( Mcl-1, Bcl-2, Bcl-xL, Bad and Bax ) in HeLa cells treated with imperatorin and doxorubicin was evaluated by Western blot analysis .The apoptosis and mitochondrial membrane poten-tial (ΔΨm ) in the HeLa cells treated with imperatorin and doxorubicin were analyzed by flow cytometry .A Mcl-1 expres-sion vector was constructed , and its role in the cytotoxicity of imperatorin plus doxorubicin to HeLa cells was detected by MTT assay.RESULTS: Addition of imperatorin significantly enhanced the cytotoxicity of doxorubicin to HeLa cells in vitro.Mcl-1 expression was down-regulated by imperatorin but was not influenced by doxorubicin in the HeLa cells .A com-bination of imperatorin and doxorubicin induced apoptosis and ΔΨm collapse more significantly compared with the treatment with imperatorin or doxorubicin alone .Furthermore, the imperatorin-induced sensitization for doxorubicin cytotoxicity to HeLa cells was abolished by the transfection with Mcl-1 expression plasmid .CONCLUSION:The combination of doxoru-bicin with imperatorin enhances the antitumor effect of doxorubicin on cervical cancer cells via targeting Mcl -1.
4.Updates of interstitial Cajal-like cell of biliary tract
Chinese Journal of Digestive Surgery 2016;15(4):404-406
Interstitial cell of Cajal (ICC) is a kind of special interstitial cell in the gastrointestinal tract,which has close connection with the smooth muscle cells and neuron cells.It is involved in gastrointestinal motility and nerve signal transduction and is considered as the pacemaker cell of slow wave of gastrointestinal tract.ICC which exists in the non-gastrointestinal organs such as biliary tract,urethra,bladder and so on is named interstitial Cajal-like cell (ICLC).This article will review the progress in the research of ICLC in the biliary system in terms of their morphology,identification,classification,function,distribution and related biliary diseases.
5.Numerical analysis of the effect of capillary geometry on oxygen transport in the microcirculation by MATLAB
Journal of Medical Biomechanics 2009;24(4):263-269
Objective Delivery of oxygen in tissues is limited in the space where oxygen must diffuse between the vascular and the surrounding tissues. Normal capillaries are relatively straight and well spaced, in contrast, the tumor vascular networks usually display more irregularity and the vessel wall shows higher permeability and less elasticity. The purpose of this study was to investigate the effect of capillary elasticity and tortuosity on the oxygen distribution and make further investigation on the mechanism of the formation of hypoxic regions in tumor. Method One-dimensional capillary model was coupled with the oxygen diffusion model. Oxygen transport was investigated in a Krogh and tortuous tissue model. The capillarygeometrywas obtained bythe one-dimensional model and transferred to the tissue model. Finite element method was employed in the analysis. Result The capillary radii along the flow direction under pressures were obtained for different initial radii and the oxygen distribution in the Krogh cylinder tissue model and the model with a tortuous capillary were computed. Conclusions when the capillary radius is small, the effect of vessel elasticity may have not significant effect on the oxygen distribution. However, with the capillary radius increasing, the effect on the oxygen transport becomes obvious. Moreover, with the tortuosity of the capillary increasing, the oxygen distribution becomes more heterogeneous, which is in agreement with the result in available reference. This work will be helpful to the investigation of oxygen transport within tumor.
6.Effect of Tetramethylpyrazine on Expression of Vascular Endothelial Growth Factor and Growth of Vascular Endothelium
Ying CHAI ; Kai SONG ; Gang SHEN
International Journal of Traditional Chinese Medicine 2009;31(1):71-72
Ligusticum Chuanxiong,a traditional Chinese medicine,has the functions of promoting Qi flow and blood,dispelling pathogenic wind and relieving pain.One of effective constituents extracting from Chuanxiong is tetramethylpyrazine,which has several pharmacological activities and anti-tumor function through inhibiting expression of vascular endothelial growth factor(VEGF).Recent relative studies provided scientific basis for a better application oftetramethylpyrazine clinically.
7.Introduction and analysis on acupuncture education and qualification examination system in U.S.A.
Cong LU ; Wei HE ; Ying-Kai ZHAO
Chinese Acupuncture & Moxibustion 2013;33(12):1131-1134
Based on research of the Accreditation Commission for Acupuncture and Oriental Medicine (ACAOM), the National Certification Commission for Acupuncture and Oriental Medicine (NCCAOM) and the related public websites of acupuncture educational institutions, the first hand information was studied, summarized and sorted on the status quo of the educational qualification or the relative authentication of education programs of ACAOM as well as the status of professional qualification and examination of NCCAOM. The education curriculum of the Master degree of Acupuncture, Master degree of Oriental Medicine Science as well as the Doctor degree of Acupuncture and Oriental Medicine were also introduced in this article including student enrollment and graduation in recent years. The developing tendency of the federal unified acupuncture education, management, professional qualification and examination system of U. S. A. were discussed and analyzed as well.
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education
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manpower
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organization & administration
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Acupuncture Therapy
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standards
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Humans
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United States
8.Determination of Entrapment Efficiency of Loratadine Binary Ethosomes by Sephadex Microcolumn Com-bined with HPLC
China Pharmacist 2015;(2):244-246
Objective:To establish a method to determine the entrapment efficiency of loratadine binary ethosomes. Methods:The gel microcolumn centrifugation method was employed to separate the free drug from loratadine binary ethosomes. The content of lorata-dine was determined by HPLC to calculate the entrapment efficiency. Results: A calibration linear curve of loratadine concentration was within the range of 10. 2-102. 0 μg·ml-1(r=0. 999 5). The average entrapment efficiencies of three batches of loratadine binary ethosomes were 86. 75%, 87. 26% and 86. 00%, respectively. Conclusion:The method is simple and rapid, and can be used to de-termine the entrapment efficiency of loratadine binary ethosomes accurately.
9.Therapeutic effects of Ex-PRESS gIaucoma fiItration device impIantation in neovascuIar gIaucoma
Ying, ZHU ; Jun, LI ; Shao-Kai, XU
International Eye Science 2015;(3):534-536
34 patients who suffered from NVG, excluding patients with shallow anterior chamber.All patients were assigned to groups A and B according the different therapy.Group A ( 15 eyes ) was treated with Ex -PRESS glaucoma filtration device implantation. Group B ( 19 eyes ) underwent a trabeculectomy combined with mitomycin C. All the patients were followed up to 1a.The results of best-corrected visual acuity ( BCVA ) , intraocular pressure ( lOP ) , the combination of lOP lowering medications, complications were recorded statistically analyzed preoperative and 1d, 1, 4wk, 6 and 12mo after operation. · RESULTS: Mean lOP decreased significantly frompreoperative values in both groups ( P=0.01 ) .The both group had similar lOP values changes after 1, 4wk, 6, 12mo, and there were no significant difference in statistics (P=0.451).There was no significant difference in BCVA changes after operation in both groups ( P =0.832).Success rate was 66.7%and 63.1%at 1a after Ex-PRESS glaucoma filtration device and trabeculectomy, respectively. Anterior chamber bleeding occurred to 8 cases after trabeculectomy in group B and to 3 cases with Ex-PRESS glaucoma filtration device implantation in group A.Choroidal detachment occurred to 3 cases in
group A and 6 cases in group B. No other ocular or systemic adverse events were found during the follow-up duration.
·CONCLUSlON:ln the short-term, Ex-PRESS glaucoma filtration device implantation has the advantages of simpleness, safety, minimally invasive, short learning curve for neovascular glaucoma, which provides us an available strategy to conquer NVG by simply operation and less suffering.
10.Therapeutic effects of combination therapy for neovascular glaucoma
Jun, LI ; Ying, ZHU ; Shao-Kai, XU
International Eye Science 2015;(4):704-706
AIM: To investigate therapeutic effects of combination therapy for neovascular glaucoma ( NVG) .
METHODS: This retrospective study comprised 34 eyes of 34 patients who suffered from NVG. All patients were assigned to group A, B, C and D according to the different combination therapies. Group A ( 11 eyes of 11 patients ) was treated with intravitreal injection of ranibizumab and panretinal photocoagulation ( PRP ) . Group B ( 10 eyes of 10 patients ) was treated with transcleral cyclophotocoagulation and PRP. Group C ( 6 eyes of 6 patients) was treated with 3 therapies together. Group D (7 eyes of 7 patients) was treated with 810nm transcleral cyclophotocoagulation and soft gas-permeable contact lenses. All the patients were followed-up for 1a. The best- corrected visual acuity ( BCVA ) , intraocular pressure ( IOP ) were recorded and analyzed prior to operation and 1, 4wk, 6 and 12mo after operation.
RESULTS: All the post treatment IOP decreased significantly ( P<0. 05 ) from the values before therapy, and the IOP values after 4wk, 6, 12mo were not significantly different ( P > 0. 05 ) in statistics. Most patients' IOP can be controlled below 23mmHg after combination therapy. The visual acuity in group A after 1, 4wk, 6mo compared with those before treatment was significantly increased ( P<0. 05 ) in statistics and other groups did not significantly change before and after treatment (P>0. 05). Anterior chamber bleeding occurred to 2 cases after 1wk of transcleral cyclophotocoagulation. No other ocular or systemic adverse events were found during the follow-up duration.
CONCLUSION: After the combination of intraocular injection of the anti - VEGF drugs, 810nm laser cyclophotocoagulation and PRP, most patients with NVG disease can be effectively treated, can effectively control IOP, and retain part of the visual function, significantly improve the quality of life. In the short - term, combination therapy is safe and effective for NVG, which provides us an available strategy to conquer NVG by simply programmable operation and less suffering.