ObjectiveTo study the correlation between essential hypertension and plasma aminopeptidase A.MethodsThe people of the Han nationality in Huainan city received questionnaire investigation and their blood pressure,height and weight were measured.131 individuals suffered from hypertension and 134 healthy individuals belongs to hypertensive pedigree and 127 individuals suffered from hypertension and 132 healthy individuals belongs to non-hypertensive pedigree were reseached.The level of Ang Ⅱ in plasma was detected by RIA,and the level of APA was detected by ELISA.ResultsThe levels of Ang Ⅱ and APA in plasma in HP group was significantly higher than that in NHP group in two pedigrees ( t =10.3398,6.5613,11.7089,6.6683,all P ＜ 0.01 ).Furthermore,the levels of Ang Ⅱ and APA in plasma in HP group in hypertensive pedigree was significantly higher than that in HP group in nonhypertensive pedigree(t =3.6201,6.1091,all P ＜ 0.01 ).There was significantly positive correlation between MAP and the levels of Ang Ⅱ and APA in plasma in HP group in two pedigrees ( r =0.315,0.392,all P ＜ 0.05 in non-hypertensive pedigree,and r =0.412,0.505,all P ＜ 0.01 in hypertensive pedigree ).There was positive correlation between the levels of Ang Ⅱ and APA in plasma in HP group in hypertensive pedigree ( r =0.322,P ＜ 0.05 ).ConclusionThere was significant difference between hypertensive pedigree and non-hypertensive pedigree in the levels of APA;The levels of APA in plasma in HP group was significantly increased in the individuals suffered from hypertension,and was positively correlated with MAP.

Objective: To establish a RP-HPLC for determination of bergenin in Rodgeris aesculifolia batal from different sources. Methods : Chromatographic conditions were as follows: C 18 column(5?m, 4.6mm?150mm,i.d), was adopted, mobile phase consisted of 25% ethanol and 75% water. The column temperature was set at (30?1)?C. The flow rate was 1.0mL?min -1 and the detection wavelength was at 275nm. Results : The method was proved to be linear in the range of 0.8～4.0?g with a regression coefficient of 0.9993. The average recovery was 99.95% with RSD 3.0%( n =5). The minimum detection limit was 0.1ng. Conclusion : The method is proved to be quick, simple and highly sensitive. There is some relationship between the bergenin contant and different sources of raw materials.

In this study, it is to compare the effectiveness of prevention against and treatment of doxorubicin (DOX) induced cardiotoxicity by dexrazoxane and schisandrin B (Sch B) in rats. Sprague-Dawley (SD) rats were randomly divided into the following 6 groups: normal saline group, DOX group, DOX+DEX group, DOX+Sch B (80 mg x kg(-1)) group, DOX+Sch B (40 mg x kg(-1)) group and DOX+Sch B (20 mg x kg(-1)) group. The results showed that Sch B could combat the increase of myocardial enzymes in peripheral blood, decrease of the enzyme activity of myocardial tissue antioxidant enzymes and disorders of systolic and diastolic function of heart in rats intravenously injected with doxorubicin (15 mg x kg(-1)). Sch B was better than DEX in protecting rat against DOX-induced the symptoms. Sch B could protect rat against DOX-induced acute cardiomyopathy and has clinical potential applications.

OBJECTIVETo study tissue culture of Vinca minor and determine the content of vincamine.

METHODLeaf blades, stalks, root segment of V. minor were used as explants to study the effect of 2, 4-D,6-BA,NAA on its callus induction and vincamine contents in the orthogonal design experiment. In the peak period of callus formation, vincamine content in callus of V. minor and sterile plants was determined by HPLC. The experimental data was statistically analyzed.

RESULTThe content of 6-BA and NAA had no significant effect on its callus induction. But the content of 2, 4-D had significant effect on its callus induction. Within 20,40,60 d, the content of vincamine in sterile plant was (0.015 +/- 0.003)%, (0.097 +/- 0.001)% , (0.113 +/- 0.06)%, respectively. In the peak period of callus formation, vincamine content in callus of leaf blades, stalks, root segment was (0.024 +/- 0.0025)%, (0.016 +/- 0.0015)%, (0.010 +/- 0.0015)%, respectively. To 30 days of subculture, vincamine content in callus of leaf blades, stalks, root segment was (0.041 +/- 0.002)%, (0.019 +/- 0001)%, (0.016 +/- 0.002)%, respectively.

CONCLUSIONThe optimal hormone combination for callus initiation was MS +2, 4-D 1.0 mg x L(-1) +6-BA 0.5 mg x L(-1) + NAA 0.5 mg x L(-1). In different growth periods, vincamine content in sterile plants is significantly different. From different explants in callus vincamine content is different, in which leaves callus is significantly higher than that of stems, roots produced callus organization.

Culture Techniques ; methods ; Linear Models ; Plant Infertility ; Vinca ; chemistry ; growth & development ; physiology ; Vincamine ; analysis