[Effects of different drying methods on ginsenosides based on UHPLC-Q-Exactive Orbitrap MS technique].

The present study quickly identified the ginsenosides in fresh Panax ginseng and specified the effects of different drying methods(50 ℃-drying, 80 ℃-drying, and-70 ℃ freeze-drying) on ginsenosides.Three P.ginseng products by different drying methods were prepared, and the UHPLC-Q-Exactive Orbitrap high-resolution liquid mass spectrometry(MS) technique was applied to perform gradient elution using water-acetonitrile as the mobile phase, and the data collected in the negative ion mode were analyzed using X Calibur 2.2.The results showed that 57 saponins were identified from fresh P.ginseng.As revealed by the comparison with the fresh P.ginseng, in terms of the loss of ginsenosides, the dried products were ranked as the dried product at 50 ℃, freeze-dried products at-70 ℃, and the dried product at 80 ℃ in the ascending order.This study elucidated the effects of different drying methods on the types and relative content of ginsenosides, which can provide references for the processing of P.ginseng in the producing areas.

Speciation of inorganic selenium in environmental water samples by inductively coupled plasma optical emission spectrometry after preconcentration by using a mesoporous zirconia coating on coal cinder.

A simple, novel, and selective flow-injection solid-phase extraction with inductively coupled plasma optical emission spectrometry method was developed for the speciation of inorganic selenium in environmental water samples. A mesoporous zirconia film was simply introduced to coat coal cinder by means of the sol-gel technique, and the adsorptive performance of the coated material for Se(IV)/Se(VI) was investigated in different media. Both Se(IV) and Se(VI) can be retained quantitatively by the material in HCl/NaOH (pH 1.0-9.0) media, while only Se(IV) was adsorbed quantitatively in sodium acetate buffer (pH 3.5-6.0). Thus, the assay of Se(VI) is based on subtracting Se(IV) from total selenium by controlling different adsorptive media without employing any redox procedure. Under the optimum conditions, the detection limit of Se(IV) is 9.0 ng/L with an enrichment factor of 100, and the relative standard deviation is 3.6% (n = 9, C = 5.0 ng/mL). The developed method was successfully applied to the speciation of inorganic selenium in environmental water samples with satisfactory results. In order to further verify the accuracy of the developed method, it was applied to analysis of total selenium in GSBZ 50031-94 certified reference environmental water, and the determined values coincided with the certified values very well.

[Effects of medicated thread moxibustion of Zhuang medicine on sex hormone in ovariectomized rabbits].

OBJECTIVE: To explore the mechanism of medicated thread moxibustion of Zhuang medicine (MTMZ) in treating perimenopausal period syndrome. METHODS: Thirty rabbits were randomly divided into a normal group, a model group, a medicated thread group, a no-medicated thread group and a sham operation group, 6 cases in each group. The model of perimenopausal period syndrome was established by ovariectomizing the ovary. The medicated thread group was treated with MTMZ at "Qizhou" acupoint (Extra), "Xiaguanyuan"(Extra), "Shenshu" (BL 23) and "Pishu" (BL 20), etc., once each day for 4 weeks. The no-medicated thread group was treated with no-medicated thread moxibustion at the same acupoints, and there is no treatment in the other groups. The changes of hormone level in each group before and after the treatment were observed. RESULTS: After ovariectomizing the ovary, the serum estradiol (E2) in the model group [(308.33 +/- 12.58) pmol/L], the medicated thread group [(304.96 +/- 13.85) pmol/L] and the no-medicated thread group [(303.43 +/- 10.57) pmol/L] were lower than that in the normal group [(478.09 +/- 12.23) pmol/L] and the sham operation group [(488.05 +/- 11.45) pmol/L] (all P < 0.01). After treatment, the E2 level in medicated thread group [(338.92 +/- 11.23) pmol/L] was higher than before (P < 0.01) and that in the model group [(300.53 +/- 13.68) pmol/L] and the no-medicated thread group [(309.74 +/- 13.59) pmol/L] (both P < 0.01), and the serum follicle stimulating hormone [FSH, (58.90 +/- 5.29) U/L] and luteinizing hormone [LH, (64.65 +/- 5.23) U/L] were lower than those in the model group [(65.41 +/- 5.19) U/L], [(71.85 +/- 5.30) U/L] (both P < 0.05). CONCLUSION: MTMZ can increase the serum E2 and reduce the serum FSH and LH in ovariectomized rabbits, and this may be one of the mechanisms of MTMZ for treatment of perimenopausal period syndrome.

[Effect of Chinese medicinal massage on endocrinal function in women with climacteric syndrome].

OBJECTIVE: To explore the therapeutic effect of Chinese medicinal massage with nourishing-Shen and activating-blood manipulation in treating women with climacteric syndrome and its influence on endocrinal function. METHODS: Sixty patients were assigned to two groups, the 40 patients in the treated group were treated by Chinese medicinal massage for 20 min once every other day; the 20 patients in the control group were treated by hormone replacement therapy with Premarin 0.625 g, once daily by oral taking. The therapeutic efficacy was evaluated after two-month treatment by changes of serum levels of estradiol (E2), follicular stimulating hormone (FSH), luteinizing hormone (LH), and Kupperman index before and after treatment. RESULTS: Kupperman index showed that the total symptom score in the treated group was improved from 30.71 +/- 8.43 scores before treatment to 8.21 +/- 5.14 scores after treatment, with a decrement of 22.50 +/- 8.14 scores, which was higher than that in the control group, from 24.32 +/- 5.44 scores to 5.92 +/- 3.58 scores, with a decrement of 18.40 +/- 4.50 scores, the difference between them was statistically significant (t = 2.52, P = 0.014). The serum level of E2 increased in both groups significantly after treatment, from 20.23 +/- 20.78 ng/L to 54.34 +/- 24.26 ng/L in the treated group (t= -2.73, P = 0.006), and from 16.15 +/- 24.40 ng/L to 40.61 +/- 81.54 ng/L in the control group (t = -1.72, P = 0.086), but the difference between groups was statistical insignificant (t= -1.120, P = 0.263). As for levels of FSH and LH, their decrements in the control group (13.16 +/- 11.29 mlU/mL and 10.37 +/- 9.21 mlU/mL) were larger than those in the treated group (4.92 +/- 4.26 mlU/mL and 0.17 +/- 2.42 mlU/mL), respectively (t = - 2.49, P = 0.013; t = - 2.38, P = 0.017). CONCLUSION: Chinese medicinal massage manipulation could improve the Kupperman index of all the 13 symptoms in women with climacteric syndrome, and increase the E2 level in serum.