Schisantherin B Improves the Pathological Manifestations of Mice Caused by Behavior Desperation in Different Ages-Depression with Cognitive Impairment

Depression is a major mood disorder. Abnormal expression of glial glutamate transporter-1 (GLT-1) is associated with depression. Schisantherin B (STB) is one bioactive of lignans isolated from Schisandra chinensis (Turcz.) Baill which has been commonly used as a traditional herbal medicine for thousands of years. This paper was designed to investigate the effects of STB on depressive mice induced by forced swimming test (FST). Additionally, we also assessed the impairment of FST on cognitive function in mice with different ages. FST and open field test (OFT) were used for assessing depressive symptoms, and Y-maze was used for evaluating cognition processes. Our study showed that STB acting as an antidepressant, which increased GLT-1 levels by promoting PI3K/AKT/mTOR pathway. Although the damage is reversible, short-term learning and memory impairment caused by FST test is more serious in the aged mice, and STB also exerts cognition improvement ability in the meanwhile. Our findings suggested that STB might be a promising therapeutic agent of depression by regulating the GLT-1 restoration as well as activating PI3K/AKT/mTOR pathway.

Simultaneous Determination of Schisantherin, Deoxyschizandrin and Anwuligan in Wuzhi Pellets by HPLC / 中国药师

Objective: To establish a method for HPLC determination of schisanthein, deoxyschizandrin and anwuligan in Wuzhi pellets simultaneously and control the quality of Wuzhi pellets.Methods: Schisantherin, deoxyschizandrin and anwuligan were determined by HPLC with a chromatographic column of Welch Ultimate XB-C 18 (150 mm× 4.6 mm , 3 μm), the mobile phase was tetramathylene oxide-water with gradient elution.The detection wavelength was 228 nm.The column temperature was 35℃.Results: The linear range of schisantherin was 0.040-0.805 μg (r=0.999 9),and the average recovery was 97.0% with RSD of 1.67%.The linear range of deoxychizandrin was 0.092-1.846μg (r=0.999 9),and the average recovery was 102.5% with RSD of 1.49%.The linear range of anwuligan was 0.020-0.998 μg (r=0.999 9),and the average recovery was 95.0% with RSD of 1.78% (n =6).Conclusion: The method is simple, accurate and reproducible.It can improve the quality standard of Wuzhi pellets.

Analysis of commercial grades of Schisandrae Sphenantherae Fructus based on schisantherin / 中国中药杂志

Schisandrae Sphenantherae Fructus, from different producing areas, were collected and divided into three grades. The moisture content and total ash were determined on the basis of the pharmacopoeia method, and schisantherin was determined by UPLC. The study is aimed to find the commercial specifications and grades of Schisandrae Sphenantherae Fructus based on schisantherin content. The results showed that the content of water, total ash and schisantherin of Schisandrae Sphenantherae Fructus from different producing areas qualified. There was no significant difference between different grades of schisandrin content, but the second-class were the highest, first-class and third-class were lower. It means that schisandrin content is not positive correlation to commercial grade. The study will be helpful to the production, management and clinical practice of Schisandrae Sphenantherae Fructus.

Simultaneous Determination of Five Effective Components in Hugan Tablets by HPLC / 中国药师

Objective:To establish an HPLC method for the simultaneous determination of adenosine, schisandrin, schisantherin,deoxyschizandrin and schisandrin B in Hugan tablets. Methods:An Agilent Eclipse XDB column(250 mm × 4. 6 mm,5 μm)was used with the mobile phase of acetonitrile- 0. 7% phosphoric acid solution with gradient elution. The flow rate was 0. 80 ml·min -1 . The detection wavelength was set at 260 nm in 0-14 min and 250 nm in 14-58 min,the column temperature was 30℃ ,and the sample size was 10 μl. Results:There was a good linear relationship within the range of 2. 35- 47. 00 μg· ml -1(r = 0. 999 8)for adenosine,14. 90-297. 00 μg·ml -1(r = 1. 000 0)for schisandrin,3. 46- 69. 20 μg·ml-1(r = 0. 999 9)for schisantherin,4. 00- 80. 10 μg·ml -1(r = 1. 000 0)for deoxyschizandrin and 3. 42- 68. 30 μg·ml-1(r = 0. 999 9)for schisandrin B. The average recoveries for the five components were all above 98% . Conclusion:The method is simple and accurate with good reproducibility,which can be used for the determination of adenosine,schisandrin,schisantherin,deoxyschizandrin and schisandrin B in Hugan tablets.

Effect of schisantherin A inhibit liver sinusoid endothelial cell function and action against liver fibrosis relating to angiogenesis / 中国中药杂志

To investigate the effect of schisantherin A on liver sinusoid endothelial cell function and angiogenesis. Different dosages (0-40 μmol•L⁻¹) of schisantherin A were incubated 24 h with SK-HEP-1 cells, and the toxicity of SK-HEP-1 cells was assayed by MTT method. The proliferation of SK-HEP-1 cells were induced by the vascular endothelial growth factor (VEGF), with receptor tyrosine kinase inhibitor sorafenib as the control, at the same time, set up the control group, 2, 20 μmol•L⁻¹ schisantherin A were incubated with SK-HEP-1 cells, cell proliferation was analyzed by EdU DNA cell proliferation kit. Fluorescence probe method was used to assay the intracellular NO levels and NOS activity. Tube formation was observed using cell migration and a matrigel tube formation assay. Rat aortic ring assay was performed to observe the sprouting vessels from aortic ring. The fluorescence vessels, the number of functional blood vessels, and intersegmental vessel changes of transgenic zebrafish were also observed. Compared with control group, the proliferation of SK-HEP-1 cells induced by VEGF increased and and the level of NO and NOS activity induced; compared with model group, 2, 20 μmol•L⁻¹ schisantherin A and sorafenib inhibited the proliferation of SK-Hep-1 cells induced by VEGF, and reduced the level of NO and NOS activity. At the dosage of 20 μmol•L⁻¹, schisantherin A attenuated the migration and tube formation of SK-HEP-1 cells induced by VEGF, and also inhibition the formation of rat aortic rings and intersegmental vessel changes of transgenic zebrafish, and significantly reduce the number of vessels in zebrafish. Schisantherin A has potential effects on function of endothelial cell proliferation and angiogenesis.

Simultaneous Determination of Four Components in Huangqi Shengmai Decoction by HPLC-DAD / 中国中医药信息杂志

Objective To establish a method for simultaneous determination of contents of schisandrin B, schisantherin A, lobetyolin and ruscogenin in Huangqi Shengmai Decoction with HPLC method. Methods The chromatographic column was an Agilent Eclipse C18 column (4.6 mm × 250 mm, 5 μm) that was maintained at a constant temperature of 30 ℃. The mobile phase was 0.1% acetic acid solution-acetonitrile, with gradient elution. The flow rate was 1.0 mL/min. The detection was at wavelength of 280 nm. Results The standard curves of schisandrin B, schisantherin A, lobetyolin and ruscogenin had good linearity in the ranges of 0.862 5-21.562 5μg (r 2=0.999 1), 0.737 5-18.437 5μg (r 2=0.999 4), 0.095 2-2.380 0 μg (r 2=0.999 6), and 0.810 0-20.250 0 μg (r 2=0.999 0), respectively. The average recoveries of the four components were 98.06%(RSD=1.64%), 99.61%(RSD=2.72%), 97.98%(RSD=1.45%), and 99.30%(RSD=1.25%), respectively. Conclusion This method is accurate, rapid and specific, achieving the stable results with high reproducibility.

Determination of schizandrol,schisanterin and deoxyschizandrin in Anshen Buxin Pills by HPLC / 中成药

AIM:To develop a HPLC method for determing the contents of schizandrol,schisantherin and deoxyschizandrin in Anshen Buxin Pills(Radix et Rhizoma Salviae miltiorrhizae,Fructus Schisandrae chinensis,Rizoma Acori tatarinowii,etc.). METHODS: The samples were extracted with methanol through supersonic wave and then filtered.The determination was performed by HPLC on Shim-pack VP-ODS C_(18) column using methanol-water-acetic acid glacial(65∶35∶0.1) as a mobile phase,the flow rate was 1.0 mL/min,the detection wavelength was at 220 nm. RESULTS: The linear ranges of schizandrol,schisantherin and deoxyschizandrin were 0.001 2-(0.050 0) ?g(r=1.000 0)、0.001 4-0.057 6 ?g(r=0.999 5) and 0.002 1-0.060 8 ?g(r=0.999 8),respectively.The average recoveries of three components were 99.51%,99.40% and 99.06%,respectively.(CONCLUSION:)The method is accurate,quick,sensitive and can be used for measurement of schizandrol,schisantherin and deoxyschizandrin in Anshen Buxin Pills.