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OBJECTIVE： To establish the method for simultaneous determination of main drug contents in Nilestriol tablet and Diethylstilbestrol tablet. METHODS： HPLC method was adopted. The determination was performed on Waters Symmetry C18 column with mobile phase consisted of 0.02 mol/L ammonium acetate water solution-acetonitrile （40 ∶ 60，V/V） at a flow rate of 1.0 mL/min. The detection wavelength was set at 280 nm， and column temperature was 35 ℃. The sample size was 20 μL. RESULTS： The linear range of nilestriol and diethylstilbestrol were 0.01-0.5 mg/mL （r＝0.999 9）； the limits of quantitation were 187 and 192 ng/mL， and the limits of detection were 56 and 58 ng/mL. RSDs of precision， stability and reproducibility tests were all lower than 1％ （n＝6）. The recoveries of them were 99.13％-100.80％（RSD＝0.52％，n＝9） and 99.20％-100.90％（RSD＝0.58％， n＝9）. CONCLUSIONS： The method is more sensitive and reproducible， and suitable for simultaneous determination of nilestriol content in estrogenic hormone drug Nilestriol tablets and diethylstilbestrol content in Diethylstilbestrol tablets.
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Objective To understand the radiation protection effect of pre-irradiation administrations of nilestriol on the mice with bone marrow type of acute radiation syndrome after irradiation with 60Co γ-rays,along with its mechanisms for improvement of hematopoiesis.Methods The nilestriol administration protocols were prepared by analysis of peripheral blood cell counts and survival rate experiment on mice.The mechanisms by which the pre-irradiation twice administrations improved the post-irradiation recovery of bone marrow hematopoiesis were studied by the analysis of the surface marker of bone marrow hematopoietic stem/progenitor cells of mice and by the inspection of hematopoietic progenitor cell colony and by using histopathological assessment of bone marrow.Results Pre-irradiation administration of nilestriol at two-or three-day intervals had been shown to increase survival rates up to 100％ in mice exposed to 9.0 Gy γ-rays,which was superior to a single administration (20％,x2 =21.66,21.66,P ＜0.05).The pre-irradiation administration both at one-day or two-day intervals were capable of improving the recovery of peripheral blood counts,including white blood cell (WBC),red blood cell (RBC),and platelet in mice exposed to 6.5 Gy (F =21.33,100.9,49.34,19.19,P ＜ 0.05),showing the better effects than a single administration (F =17.11,63.38,21.89,14.37,P ＜ 0.05).The two-day-interval administration of nilestriol could significantly increase the numbers of bone marrow hematopoietic stem/progenitor cell counts (t =8.58,2.80,P ＜ 0.05) in mice on day 10 after 6.5 Gy irradiation.This also could be capable to significantly improve colony formation,with there being statistical difference compared with single administration(t =4.29,6.34,P ＜ 0.05).Also the administration at two-day-interval were also usefull in reconstruction of hematopoietic cell hyperplasia of bone marrow of irradiated mice.Conclusions As compared with conventional single admination,the pre-irradiation multiple administrations of nilestriol showed significantly improved radiation protection effects.Considering a nuclear medical emergency rescue,it is recommended to follow the pre-irradiation administration of nilestriol at two-day interval,which could obtain the best protection effects at minimum administration frequency.
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Objective To study the effects of nilestriol taken orally before removing the intrauterine device (IUD) in postmenopausal women.Methods Women in group one took nilestriol 4rag orally once a week before op- eration;women in another group took no medicine.Two groups women were removed IUD by routine operation.Re- suits 100% of the IUD were removed successfully for women in group one,85% of the IUD were removed for women in another group,and there were significant differences (P
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OBJECTIVE:To study the therapeutic effect of yixinkangtai capsul e with nilestriol on perimenopausal syn?drome.METHODS:68female patients suffering from perimenopausal syndrome were randomly divided into united therapy group(yixinkangtai capsule+nilestriol)and the control group(nilestriol),the effective rates and the amelioration of clinical symptoms of the2groups were observed and compared.RESULTS:The total effective rate of the united therapy group was88.24%,which is significantly higher than the control group(61.76%)(P
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Objective To observe the benefits and harms of nilestriol in elderly women with hypertension.Methods Forty-one elderly women with hypertension who had received antihypertensive therapy were randomly divided into two groups. Women in group A (n=21) received oral nilestriol, wherase those in group B(n=20) received oral placebo for six months. Blood sugar(Bs), blood lipids, soluble intercellular adhesion molecule 1(sICAM-1),E-selectin and plasma fibrinogen(Fbg),tissue-type plasminogen activator antigen(tPA),plasminogen activator inhibitor 1(PAI-1),von Willebrand factor(vWF) were measured before starting treatment and 6th month after treatment.Results Levels of total cholesterol(TC),Fbg,tPA,PAI-1,vWF,sICAM-1,E-selectin in group A were significantly lower than those in group B.Conclusions In elderly women with hypertension, nilestriol could improve the metabolism of lipids,endotheliocytes function,inflammation factors expression,thrombosis and hemostasis.
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Objective:To observe the clinical effect of treatment of burning mouth syndrome in women by hormone replacement therapy (HRT).Methods:21 cases of climacteric women with burning mouth syndrome (BMS) were treated by HRT with nilestriol and medroxyprogesterone acetate.Another 21 cases were treated with vitamin B,C and oryzanol as the controls.The treatment and follow-up were conducted for 3～6 months.Results:The ratio of effectiveness in HRT group and control group was 85.71% and 14.27% (P