1.Preparation and Quality Control of Fumeisong Cream
China Pharmacy 2001;0(07):-
OBJECTIVE: To prepare fumeisong cream and establish its quality control method. METHODS: Ingredients including carbamide, triamcinolone acetonide acetate, camphor, and laurocapram were mixed in an oil-in-water matrix for preparation of fumeisong cream. HPLC was adopted to determine the content of triamcinolone acetonide in the cream. RESULTS: The prepared cream was white in color, with test items all in line with specifications stipulated in 2005 version of China Pharmacopoeia. The linearity concentration range of triamcinolone acetonide was 2.06~20.6 ?g?mL-1(r=0.999 6) and the average recovery rate was 99.6% (RSD=1.0%,n=9). CONCLUSION: The cream is simple and feasible in preparation techniques, and its quality is stable and controllable.
2.Quantitation of drug concentration in hair and its application in drug monitoring
Chinese Journal of Clinical Pharmacology and Therapeutics 2002;0(06):-
Hair can be easily collected,the collection method does not cause any harm to body.It can provide long and convinced information about drug uses.It possess irreplaceable advantages of blood,urine and other biological samples.The review summarizes the basic information and recent studies of hair analysis.It introducs the hair-shaft structure,the mechanisms of drug incorporation,extraction/purification methods and all kinds of analytical techniques.The advantages,drawbacks and promising prospects about hair in drug monitoring are also discussed.
3.The present situation of choice for supporting and bone grafting material for anterior reconstruction after debridement of spinal tuberculosis
International Journal of Surgery 2011;38(1):50-53
Tuberculosis of bone and joint most commonly occurs in spine, and the main treatment method is anterior debridement, bone grafting and internal fixation. Autologous bone is still considered the "gold standard" when the anterior reconstruction of spine after debridement is needed. Allogeneic bone, artificial bone and artificial intervertebral support bodies such as titanium mesh and some biological materials also have a broad clinical application, but still can not completely replace the autologous bone because of their defects. In the aspect of internal fixation, anterior fixation has become a conventional method for the patients who suffer from active spinal tuberculosis and need anterior debridement of the focus, because this method can provide good support. This review summarizes the present situation of choice for supporting and bone grafting material for anterior reconstruction after debridement of spinal tuberculosis.
4.Association between M235T polymorphism of the angiotensinogen gene and cerebral infarction
Journal of Clinical Neurology 2001;0(05):-
Objective To investigate the association between M235T polymorphism of angiotensinogen (AGT) gene and cerebral infarction(CI) in Chinese.Methods AGT gene M235T polymorphism was examined in 75 cases with CI and 48 healthy controls by polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP).Results The frequencies of AGT gene T235 allele and 235TT genetype were 0.78 and 0.64 respectively,compared with those of the control group (0.604 and 0.375 respectively ),the difference was significant(? 2=8.82, P
5.THE EFFECTS OF ACTINIDIA CHINENSIS PLANCH ON THE PREVENTION OF CANCERIII. The Blocking Effect of Fruit Juice on the Formation of N-Methyl-N'-Nitro-N- Nitrosoguanidine in VitroAmes Test
Acta Nutrimenta Sinica 1956;0(03):-
A model system which simulated the conditions of the human stomach was used in the experiments. Precursors NaNO2 and MNG formed MNNG and resulted in the positive mutagenic response to Salmonella typhimurium TA 100. When the concentration of the precursors was 50 mM NaNO2 and 100 mM MNG, the induced average number of revertant per plate was 4327 showed an approximate twenty fold spontaneous revertants. With diluting of the precursors, the mutagenic response was lower, showing a dose-response relationship between the mutagenic activity and the precursors concentration. It was found that, when precursor concentration was lower than 22.2 mM NaNO2 and 44.4 mM MNG, the formation of MNNG was blocked completely by the Chinese Kiwi fruit juice and mutation was inhibited. In the same concentration without the Chinese Kiwi fruit juice, the induced revertant was an approximate 13 fold of the spontaneous revertant. The Chinese Kiwi fruit could not block the formation of the MNNG when the precursors concentration was higher than 33.3 mM NaNO2, but it inhibited the mutagenic activity partly. Compared with the Chinese Kiwi fruit juice, the effect of the ascorbic acid solution in the same concentration was much less.It was demonstrated with TLC that MNNG was formed in the model system.
6.THE EFFECTS OF ACTINIDIA CHINENSIS PLANCH ON THE PREVENTION OF CANCER IV. The Blocking Effects of Concentrated Juice on theN-nitroso Ethyl Urea (NEU) in Vivo——RatEmbryotoxicity Test
Acta Nutrimenta Sinica 1956;0(04):-
In order to observe the effect of Actinidia chinensis Planch fruit juice on blocking the formation of N-nitrosamide in vivo, 99 pregnant Wistar rats were divided into five groups. The rats of each group were orally given ni-trosamide precursor ethylurea (0.25, 0.50, 1.00, 2.00 4.00 mmol/kg) and NaNO2 (0.125, 0.25, 0.50, 1.00, 2.00 mmol/kg) respectively once a day for three days, on the 7th, 8th and 9th day of pregnancy. Half of the rats in. each group were administrated two precursors and a 4% starch solution, while the other half were administrated two precursors and the tested fruit juice.In the groups without the juice, NEU was formed in vivo, which led to a high mortality of embryos. The embryolethality was 5.21%, 43.66%, 71.7%, 85.8% and 100% respectively, and 4 pregnant rats died in the highest dosage group. However, the rats who received both the two precursors and the tested fruit juice, the living embryos and embryolethality were similar to the control groups except the highest dosage group. The none treatment group and groups only given one of the precursors were done as control groups. The results suggested that the concentrated juice could block the formation of NEU in vivo and prevent the embryotoxicity of NEU.
7.Effect of Hydralazine on the methylation of APC in cervical carcinoma cell lines
Basic & Clinical Medicine 2006;0(09):-
Objective To detect 5′CpG island methylation of APC(adenomatous polyposis coli) gene promoter region in cervical carcinoma cell lines (HeLa,CaSki,SiHa), and to investigate the possibility of Hydralazine in restoring the expression of APC gene through demethylation. Methods The CpG island methylation status of APC gene promoter region of the cervical carcinoma cell lines were analyzed using methylated specific polymerase chain reaction (MSP). The mRNA expression profile of APC gene was analyzed by using RT-PCR after Hydralazine treatment. Results The CpG island of APC gene was methylated in HeLa and hemimethylated in CaSki but not in SiHa. The mRNA expression of APC gene can be detected after hydralazine treatment. Conclusion The APC gene non-expression in cervical carcinoma is associated with CpG island methylation in APC gene promoter region. Hydralazine, served as a demethylating agent, enables to restore the expression of APC gene.
8.Vitamin E effects on the malondialdehyde concentration and superoxide dismutase in skeletal muscle mitochondria following eccentric exercise in rats
Chinese Journal of Tissue Engineering Research 2007;0(11):-
BACKGROUND:It has been shown to exhibit the increase of free radical has relationship with exercise-induced skeletal muscle injury.As a kind of antioxidant,vitamin E has the ability of removing radicals,which can relieve antioxidase damage,and delay fatigue,eventually,improve the motor ability.OBJECTIVE:From the angle of free radical metabolism,to explore the effect of vitamin E on malondialdehyde(MDA)and superoxide dismutase(SOD)of mitochondria in skeletal muscular cell after eccentric exercise,additionally,to clarify the mechanism of vitamin E on reducing the skeletal muscle damage.DESIGN,TIME AND SETTING:The randomized grouping experiment of animal was carried out in the Key Laboratory of General Administration of Sport of China in Shenyang Sport University and the Key Laboratory of China Medical University from May to October in 2007.MATERIALS:A total of 48 male,Sprague Dawley rats,weighing(304?12)g were randomly divided into the of control,sport,physiological saline,and vitamin E groups,with 12 animals in each group.METHODS:Rats in the vitamin E group was administered(i.p.)1-1.2 mg/kg vitamin E capsules once per eight hours,four times one day before experiment,and the amount of injecting volume was 4 mL/kg.The rats in physiological saline were injected by physiological saline,with the same injection methods of the vitamin E group.The models of injury were established by a bout of exhaustive eccentric exercise on a treadmill.After exercise,triceps brachiies were moved from the right side of rats.MAIN OUTCOME MEASURES:The content of MDA and activity of SOD were measured with the reagent-boxes and 6010 UV-seen spectrophotometer.RESULTS:The values of MDA,SOD of mitochondria in triceps brachiies cells in each group were greatly increased after 24 hour eccentric exercise(P 0.05),the value of MDA in the vitamin E group was greatly decreased(P
9.Toxoplasma gondii infection status in abnormal pregnancy women
Chinese Journal of Schistosomiasis Control 2014;(4):437-438,452
Objective To investigate the relationship between Toxoplasma gondii(TOX)infection and abnormal pregnancy outcomes. Methods A total of 126 cases of abnormal pregnancy women in the Department of Obstetrics and Gynecology,the Fourth People’s Hospital of Langfang from March to December 2013 were chosen as an experimental group,and 263 cases of normal pregnancy women of childbearing age as a control group. The TOX-IgM and-IgG antibodies were detected by ELISA. The data in the two groups were processed and analyzed by SPSS13.0. Results The positive rates of TOX-IgM,-IgG in 126 cases of abnormal pregnancy women were 7.94%and 19.84%respectively,and 1.90%and 8.75%in the control group respectively,and there were significant differences between them(χ2IgM=6.82,χ2IgG=9.70,both P<0.01). The positive rates of TOX-IgM,-IgG in the normal pregnancy women were lower than those in 4 sub-groups of abnormal pregnancy women,and all the differences were statistically significant(χ2spontaneous abortion = 10.40,χ2premature delivery = 9.03,χ2embryo damage =4.32,χ2birth defect = 4.04,all P<0.05). However,the TOX-IgM,-IgG positive rates in the 4 sub-groups of abnormal pregnancy women had no statistically signifi-cant difference(P > 0.05). Conclusions TOX infection could cause serious abnormal pregnancy outcomes. Therefore,the comprehensive control measures should be strengthened.
10.Research progress in generating pancreatic β cells from pluripotent stem cells
International Journal of Surgery 2012;39(10):701-704
Efforts have been directed at the development of efficient protocols for the differentiation of pluripotent stem cells into pancreatic β-cells.This review focuses on the mechanism of RA,BMP,FGFs,IDE1,IDE2,ALK-i 1 and ALKI-2 during the process in which pluripotent stem cells differentiate to pancreatie β-cells and the relationship between the differentiation and the expression of the surface markers including CD14,CD49e,CD238,CD24,EpCAM,SSEA3 and SSEA1 in the different stage of this process.