4.Preparation of Clopidogrel Bisulfate Tablets and Optimization of the Formulation and Technology
Xia SUN ; Xue WANG ; Qingming GUO ; Wei XIAO
China Pharmacy 2015;26(31):4429-4432
OBJECTIVE:To prepare Clopidogrel bisulfate tablets,and to optimize its formulation and technology. METHODS:The single factor test and compatibility test were used to optimize the fillers,disintegrating agents,adhesive,lubricants and prepa-ration technology;using sticking situation and disintegration time as indexes,the orthogonal test was used to optimize the amount of disintegrating agents [low substituted hydroxypropyl cellulose(L-HPC)],lubricants(hydrogenated vegetable oil and PEG6000), and the optimal technology was validated. The dissolution of prepared tablet and imported tablet(Plavix)in water,pH 2.0 hydro-chlorate buffer,pH 4.5 phosphate buffer(PBS)and pH 6.8 PBS were investigated,and influential factor test was conducted. RE-SULTS:Clopidogrel bisulfate tablets were prepared with dry granulating. The optimal formulation (1 000 tablets) was as follows as clopidogrel bisulfate 97.8 g,mannitol 84 g,amylum pregelatinisatum 36 g,L-HPC 8 g,hydrogenated vegetable oil 8 g, PEG6000 6 g;no tablet compressing sticking situation was found in prepared tablets and it owned medium disintegration time;ac-cumulative dissolution curves of prepared tablets in 4 kinds of medium were similar to those of Plavix;there were no significant dif-ference in results of influential factor test between prepared tablet and Plavix. CONCLUSIONS:Clopidogrel bisulfate tablets are prepared successfully,and the formulation is reasonable,practical,stable and controllable in quality.
5.Experimental study on the effect of different moxibustion durations on rats with rheumatoid arthritis
Xinyu WU ; Yang WANG ; Zhiling SUN ; Xue QIN ; Jiang ZHAO ; Xiao XU ; Yongyi ZHANG ; Lian XUE
Journal of Acupuncture and Tuina Science 2017;15(3):177-183
Objective: To observe the effect of different moxibustion durations on rats with rheumatoid arthritis (RA) and to evaluate the relationship between moxibustion amount and moxibustion efficacy.Methods: Eight rats were randomly selected as a normal group from the 40 male Sprague-Dawley (SD) rats, and the other 32 rats were used to establish typeⅡ collagen-induced RA models. After successful modeling, the 32 rats were randomly divided into a model group, a moxibustion for 20 min group, a moxibustion for 40 min group and a moxibustion for 60 min group, with 8 rats in each group. Rats in the normal group did not receive modeling and moxibustion intervention; rats in the model group did not receive moxibustion after modeling; rats in the moxibustion for 20 min group, the moxibustion for 40 min group and the moxibustion for 60 min group were treated with moxibustion at Shenshu (BL 23) and Zusanli (ST 36) for 20 min, 40 min and 60 min, respectively. Six days were a course of treatment, with a total of 3-course treatments and a 1-day rest between the courses of treatment. After treatment, the serum levels of interleukin (IL)-1β and tumor necrosis factor (TNF)-α, arthritis index (AI) scores, toe volumes and pathological score of synovitis were evaluated in the rats.Results: Compared with the normal group, the serum IL-1β and TNF-α levels, and the toe volumes in the model group were increased, and the differences were statistically significant (P<0.01), before the treatment. Compared with the model group, the serum IL-1β and TNF-α levels, toe volumes and arthritis index (AI) scores were significantly decreased in the moxibustion for 20 min group, the moxibustion for 40 min group and the moxibustion for 60 min group (P<0.05 orP<0.01 ). Compared with the moxibustion for 20 min group and the moxibustion for 60 min group, serum IL-1β and TNF-α levels, toe volumes and AI scores were decreased more significantly in moxibustion for 40 min group, and the differences were statistically significant (P<0.05 orP<0.01). There were no significant differences in serum IL-1β and TNF-α levels, AI scores and toe volumes between the moxibustion for 20 min group and the moxibustion for 60 min group (allP>0.05). The synovial histopathological improvement was the most obvious in the moxibustion for 40 min group, when the synovial histopathological changes were compared among the moxibustion for 20 min group, moxibustion for 40 min group and moxibustion for 60 min group.Conclusion: The therapeutic efficacy of moxibustion for 40 min in RA rats was more significant than that of moxibustion for 20 min and moxibustion for 60 min, indicating that the duration of moxibustion is the main factor affecting its therapeutic efficacy.
6.Phytoestrogens in application prospect of treatment of myocardial ischemia/reperfusion injury.
Guang LI ; Xiao-yan XING ; Mei-shuang ZHANG ; Jin-jin SHI ; Xue-hong DENG ; Gui-bo SUN ; Xiao-bo SUN
China Journal of Chinese Materia Medica 2015;40(16):3132-3136
Reperfusion is the most effective treatment for acute myocardial infarction, markedly reducing mortality and morbidity. Reperfusion however induces necrotic and apoptotic damages to cardiomyocytes, that were viable prior to reperfusion, a process called myocardial ischemia/reperfusion injury(MI/RI). Over the past 30 years, hundreds of experimental interventions (both pharmacologic and nonpharmacologic) have been reported to protect the ischemic myocardium in experimental animals; however, with the exception of early reperfusion, none has been translated into clinical practice. The population-based survey assessed men have about twice the total incidence of morbidity and mortality of women, and the sex gap in morbidity tends to diminish after age 45 years. So hormone replacement therapy (HRT) is given to treat the MI/RI, and lots of studies shows that the side effect is greater for estrogen, compared with phyestrogen. In this article, we review the important pathogenesis of myocardial ischemia reperfusion injury, the prevention and limitations of HRT. And we highlight the mechanism of phyestrogens treatment the MI/RI in experiment. The aim is to provide the theoretically new way of develop the safe and effective products for the researchers.
Animals
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Humans
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Myocardial Ischemia
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drug therapy
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Myocardial Reperfusion Injury
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drug therapy
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Phytoestrogens
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administration & dosage
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Plant Extracts
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administration & dosage
7.A comparative study of the effect of low-frequency electroacupuncture on blood lipids between men and women with simple obesity
kang Xiao XU ; Fei GAO ; li Li WANG ; qiu Zhong WU ; lei Yu LIANG ; xue Xiao SUN ; yi Xiao DU ; hong Xiao ZHOU ; hong Li SUN
Journal of Acupuncture and Tuina Science 2017;15(6):415-419
Objective: To observe the difference of the effect of low-frequency electroacupuncture (EA) on blood lipids between male and female patients with simple obesity due to damp induced by spleen deficiency. Methods: Eighty patients with simple obesity were recruited, including 37 males and 43 females, to receive low-frequency EA by selecting Yinlingquan (SP 10), Sanyinjiao (SP 6), Zusanli (ST 36), Fenglong (ST 40), Quchi (LI 11), Tianshu (ST 25), Zhongwan (CV 12), Shuifen (CV 9), Qihai (CV 6) and Guanyuan (CV 4), with needles retained for 30 min. The treatment was given once a day, 10 sessions as a treatment course, for 2 courses in total. The contents of body fat percentage (F%), total cholesterol (TC), triglyceride (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), blood glucose (Glu) and adiponectin (ADPN) in serum were observed to see the changes, and the two groups were compared and analyzed. Results: After the treatment, F%, and serum contents of TC, TG, LDL, Glu and ADPN dropped significantly in the two groups (P<0.05 or P<0.01) and the serum content of HDL increased significantly in male group (P<0.05). The decrease of F% in female group was more significant than that in male group (P<0.01); the decrease of ADPN in male group was more significant than that in female group (P<0.05). Conclusion: EA can regulate the disordered blood lipids in male and female patients with simple obesity, with certain differences between genders. The decrease of subcutaneous fat content is more significant in females than that in males, while the decrease of ADPN is more significant in males.
8.Emphysema associated with acquired cutis laxa.
Xue-Feng SUN ; Yue-Hua LIU ; Yi XIAO ; Tao LIU ; Xu ZHONG
Chinese Medical Journal 2013;126(6):1194-1194
Adult
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Cutis Laxa
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complications
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diagnosis
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Emphysema
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diagnosis
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etiology
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Female
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Humans
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Male
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Middle Aged
9.Ethyl acetate-soluble chemical constituents from branch of Hypericum petiolulatum.
Qi ZHAO ; Hai-long ZHANG ; Xue ZHANG ; Xiao-meng LI ; Yu-zhen SUN ; Hang SU
China Journal of Chinese Materia Medica 2015;40(9):1755-1758
The stems and branches of Hypericum petiolulatum were extracted by alcohol and liquid-liquid extraction. Seven furofuran lignans were isolated from the ethyl acetate fraction of ethanol extract of H. petiolulatum by using silica gelchromatography, Sephadex LH-20 chromatography, medium-pressure liquid chromatography and preparative HPLC. Their structures were identified by the spectroscopic methods as pinoresinol (1), medioresinol (2), 8-acetoxypinoresinol (3), epipinoresinol (4), (+)-syringaresinol (5), (+)-1-hydroxysyringaresinol (6) and erythro-buddlenolE (7). All the isolates were firstly found in H. petiolulatum. In the bioassay, compound 7 showed remarkable antioxidative activity inhibiting Fe(+2)-cystine induced rat liver microsomal lipid peroxidation with inhibitory rate 38% at a concentration of 1 x 10(-6) mol · L(-1) (positive control Vit E with the inhibitory rate of 35% at the same concentration).
Animals
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Antioxidants
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chemistry
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isolation & purification
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pharmacology
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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pharmacology
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Hypericum
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chemistry
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Lipid Peroxidation
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drug effects
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Microsomes, Liver
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drug effects
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metabolism
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Molecular Structure
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Oxidative Stress
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drug effects
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Plant Stems
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chemistry
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Rats
10.Predictors of local recurrence and survival in primary retroperitoneal leiomyosarcoma.
Guibing CHEN ; Yang YAN ; Chunhong XIAO ; Peiming SUN ; Huchen XUE ; Rong LI
Chinese Journal of Surgery 2014;52(2):105-108
OBJECTIVETo investigate the predictors of local recurrence and survival in primary retroperitoneal leiomyosarcoma (PRLS).
METHODSA retrospective analysis was conducted on 46 cases of PRLS between August 2006 and April 2012. There were 9 male and 37 female patients, and they were 30-79 year old (median 49 year old). Kaplan-Meier estimations and Cox regression analyses were performed.
RESULTSThe tumor size were 5-36 cm, and 29 cases (63.1%) of this group was more than 10 cm. Local 3- and 5-year control rates after complete resection were 47% and 30%. FNCLCC (Fédération Nationale des Centres de Lutte Contre le Cancer) grading (RR = 3.10, 95%CI: 1.59-6.04), gender (RR = 5.30, 95%CI: 1.64-17.13) and blood loss (RR = 3.12, 95%CI: 1.28-7.60) were independent prognostic factor of local recurrence in multivariable analysis (P < 0.05). The 5-year disease-free survival rates after complete resection of PRLS was 26%; and the 5-year disease-specific survival (DSS) rates after complete resection was 48%. The median DSS was 60 months in negative margin of resection and 50 months in positive margin. However, by multivariate analysis, only FNCLCC grading was significant independent predictors of DSS (RR = 2.01, 95%CI: 1.16-3.49, P = 0.013).
CONCLUSIONSGender, FNCLCC grading and blood loss were independent prognostic factor of local recurrence. The disease-specific survival in PRLS varied significantly according to FNCLCC grading.
Adult ; Aged ; Female ; Follow-Up Studies ; Humans ; Kaplan-Meier Estimate ; Leiomyosarcoma ; pathology ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; pathology ; Prognosis ; Retroperitoneal Neoplasms ; pathology ; Retrospective Studies ; Survival Rate