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By reviewing ancient materia medica， medical books， prescription books and modern literature， the herbal textual research of Sanguisorbae Radix has been conducted to verify the name， origin， evolution of scientific name， producing area， harvesting time， quality evaluation and processing methods. Through herbal textual research， the name of Diyu was first published in the Shennong Bencaojing， and has been used as the proper name of this herb for generations since then. The origin of the mainstream Diyu of previous generations was the roots of Sanguisorba officinalis or its variant S. officinalis var. longifolia. In ancient times， this herb was preferred to those with soft and fat roots， according to this characteristic， its origin should be S. officinalis var. longifolia. In modern literature， the root is preferred to those with thick， hard， pink or red sections， without rhizomes or fibrous roots， according to these characteristics， its origin should be S. officinalis. Most of the time， the past generation used Diyu directly. Occasionally， Sanguisorbae Radix was processed by frying with vinegar， baking or other methods. Since the Qing dynasty， the carbonized products has appeared and has continued to now. Based on research， it is recommended that the roots of S. officinalis var. longifolia should be used in the development of famous classical formulas， and the processing method should be selected according to the formula.
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Objective:To study on the material basis of Sanguisorbae Radix by column chromatography and liquid chromatography-ion trap-time-of-flight mass spectrometry (LCMS-IT-TOF), and analyze the distribution of different components in Sanguisorbae Radix water extract on D101 macroporous resin and polyamide resin. Method:Sanguisorbae Radix water extract was separated by D101 macroporous resin and polyamide resin, and LCMS-IT-TOF was used for detection, chromatography separation was achieved on an ACQUITY UPLC HSS T3 column (2.1 mm×100 mm, 1.8 μm) with the mobile phase consisted of water (A) and acetonitrile (B) for gradient elution (0-10 min, 5%-20%B; 10-18 min, 20%-35%B; 18-23 min, 35%-50%B; 23-28 min, 50%-90%B; 28-30 min, 90%B; 30-33 min, 90%-5%B; 33-35 min, 5%B), the flow rate was 0.3 mL·min-1, the column temperature was 30 ℃. Data acquisition was carried out in electrospray ionization (ESI) under the positive and negative ion modes, the scanning range was m/z 100-1 200. According to mass spectrometry data such as accurate molecular mass and fragment information, combined with literature, different chemical components in loading effluents and ethanol eluents of Sanguisorbae Radix water extract were identified. A heat map of the distribution of components in each fraction was drawn by extracting mass spectrum peak intensity data of each sample. The elution rules of various components were compared visually. Result:The enrichment and separation of D101 macroporous resin and polyamide resin were obvious. Tannins in Sanguisorbae Radix water extract was mainly concentrated in loading effluent of macroporous resin and its water eluent, triterpenoids were mainly distributed in the 90% ethanol eluent of macroporous resin. In the above effluents and eluents, a total of 63 compounds (including isomers) were identified. Among them, 6 compounds, ellagic acid-4-pyranoarabinoside or its isomer, 6-O-galloylnorbergerin, 3-O-galloylnorbergerin, (6-acetyloxy-5,7-dihydroxy-8-methoxy-4-oxochromen-2-yl) acetate, ethyl 2-methyl-5,6-bis (sulfooxy) benzofuran-3- carboxylate were first discovered in Sanguisorbae Radix. Conclusion:The method can quickly and accurately identify the distribution of components in aqueous extract of Sanguisorbae Radix after column chromatography, providing experimental basis for exploring the pharmacodynamic components and mechanism of Sanguisorbae Radix.
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Objective: To analyze the chemical constituent cluster of decoction of Sanguisorba Radix systemically by HPLC-IT-TOF/MS. Methods: The samples were scanned by broad spectrum of DAD detector and ionized in negative and positive environment of electron spray ionization. Results: A total of 82 chemical constituents (include isomers) were identified based on exact molecular mass, fragment, ultraviolet spectrum as well as the combination of the database. The chemical constituent cluster was composed of 69 phenolics, 8 triterpenes, 3 flavonoids, an organic acid, and a monoterpene glycoside, of which citric acid, brevifolin carboxylic acid, methoxybenzoic acid methyl ester-5-O-sulfate, isorhamnetin-sulfate, and methylellagic acid-sulfate, et al were firstly found in Sanguisorba Radix. Conclusion: The systemical analysis of the chemical constituent cluster of decoction of Sanguisorba Radix was able to supply a clear material basis for the further study of efficacy and pharmaceutical metabolism of Sanguisorba Radix.
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Objective To compare the hemostasis effect of Sanguisorbae Radix (SR) and charred Sanguisorbae Radix (CSR) before and after baking.Methods Totally 60 Kunming mice were randomly divided into six groups:control group,Yunnan Baiyao (positive drug group,0.667 g/kg),SR high and low dose (8,2 gcrude drug/kg) group,and CSR high and low dose (8,2 gcrude drug/kg) group.Mice were continuously ig with relatively drug once a day for 3 d.The bleeding time and clotting time were tested 1 h after the last administration,the prothrombin time (PT),thrombin time (TT),and activated partial thromboplastin time (APTT) were detected by blood coagulation analyzer,and the number of platelet was count.Results Compared with control group,SR of high dose,and CSR of high and low doses can obviously shorten the bleeding time,clotting time,PT,TT,and APTT.SR of high and low doses and CSR of high dose can elevate the blood platelets count.Compared with SR high dose group,CSR of high dose can obviously shorten the PT,TT,bleeding time,and clotting time,but could not be statistically significant on the blood platelets count and APTT.Conclusion SR and CSR have different hemostasis mechanisms,the function of hemostasis was more effective after charcoal by baking.
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Objective: To optimize the acid hydrolysis process of burnet (Sanguisorbae Radix, the roots of Sanguisorba officinalis) total saponins and to improve the yield of the hydrolyzate burnet sapogenin. Methods: Using orthogonal test design, the concentration of hydrochloric acid, solid-liquid ratio, hydrolysis temperature, and hydrolytic time for the hydrolysis process of burnet total saponins were investigated. Results: The primary and secondary factors that influenced the hydrolysis were followed by order of the concentration of hydrochloric acid > hydrolytic time > solid-liquid ratio > hydrolytic temperature, preferably optimum for the solid-liquid ratio of 1:200, hydrochloric acid concentration of 4 mol/L, hydrolytic time of 0.5 h, and hydrolytic temperature of 92 ℃. Conclusion: High yield of burnet sapogenin can be obtained by using the optimized hydrolytic conditions, which are suitable for industrial production.
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Objective: To explore the protective effects of tannins in Sanguisorba Radix (TSR) on myelosuppression mice induced by cyclophosphamide (CTX). Methods: TSR was ig given at the dose of 20 mg/kg for 10 d after ip administration of CTX (200 mg/kg). Results: TSR could significantly increase the numbers of white blood cells, red blood cells, and platelets of myelosuppression in mice. And it could accelerate bone marrow haemopoietic stem/progenitor cells (HSPCs) in myelosuppression mice and enhance cell proliferation by promoting cell cycles from G0/G1 phase to access into S and G2/M phases, then the reduced number of HSPCs induced by CTX was reversed. Moreover, TSR could increase the mRNA and protein expression levels of O(6)-methylguanine-DNA methyltransferase (MGMT) in HSPCs of myelosuppression mice. Conclsion: TSR has a protective function against CTX-induced myelosuppression. The mechanism might be related to protecting hematopoietic stem cells of bone marrow, stimulating hematopoiesis recovery, as well as preventing the apoptosis of hematopoietic stem cells induced by CTX. © 2014 Tianjin Press of Chinese Herbal Medicines.
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Objective: To study the chemical constituents in the effective fractions of charred Sanguisorbae Radix. Methods: The compounds were isolated and purified by column chromatography and their structures were identified on the basis of physicochemical properties and spectral analysis. Results: Five compounds were isolated and identified as 3β-hydroxy-28-norurs-17,19,21-trien (1), 3β-hydroxy-28-norurs-12,17-dien (2), 3β,19α-dihydroxyurs-13(18)-en-28-oic acid (3), 3β-[(α-L-arabin-opyranosyl) oxy]-28-norurs-12,17-dien (4), and pomolic acid (5). Conclusion: Compounds 1, 3, and 4 are novel compounds belong to triterpenoids and triterpenoid saponins, named as sanguisorbigenins Z, Y1, and Y2, respectively. © 2013 Tianjin Press of Chinese Herbal Medicines.
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Objective: To synthesize and characterize Sanguisorbae Radix/nano-silver composites by reduction of silver nitrate solution using Sanguisorbae Radix as reducing agent and dispersant. Methods: Taking the absorbance of UV-visible spectroscopy of Sanguisorbae Radix/nano-silver composites as index to study the influence of different factors, such as extracting time of Sanguisorbae Radix powder, reaction temperature of synthesis, volume of Sanguisorbae Radix extract, and concentration of AgNO3, on the formation of nano-silver composites and to optimize the conditions. TEM, XRD, FT-IR, and DLS could be used to characterize the physicochemical properties of Sanguisorbae Radix/nano-silver composites. Results: The optimum conditions were as follows: the boiling time of Sanguisorbae Radix powder was 15 min, the volume ratio of 0.1 g/mL Sanguisorbae Radix extract and 1 mmol/L AgNO3 was 1:10, the resultant temperature was 25 °C, and the reaction time was 1 h, the Sanguisorbae Radix/nano-silver composites obtained were approximately spherical in shape with the mean size about 21 nm in good uniformity and stability. Conclusion: The preparation of Sanguisorbae Radix/nano-silver composites is stable and feasible.