Objective: To investigate the chemical constituents from the roots and rhizomes of Rhodiola sachalinensis. Methods: The chemical constituents were isolated by repeated silica gel chromatography, medium pressure column chromatography, and semi-preparative liquid chromatography, and their structures were elucidated by chemical properties and spectroscopic analyses. Results: Eighteen compounds were isolated and identified to be gallic acid (1), p-hydroxybenzoic acid (2), salidroside (3), benzyl-O-β-D-glucopyranodide (4), phenylethyl-8-O-β-D-glucopyranodide (5), cinnamyl-β-D-glucopyranoside (6), sachalinol (7), quercetin (8), quercetin-3-O-β-D-glucopyranoside (9), kaempferol (10), kaemferol-7-O-α-L-rhamnopyranoside (11), kaempferol- 7-O-β-D-glucopyranoside (12), kaemnpferol-3-O-α-L-rhamnoside (13), kaempferol-3-O-β-D-glucopyranoside-7-O-α-L-rhamnoside (14), tricin (15), tamarixetin (16), herbacetin-7-O-α-L-rhamnoside (17), and herbacetin-3-O-β-D-glucopyranoside-7-O-α-L- rhamnoside (18). Conclusion: Compounds 9, 12, and 16 are obtained from the plants in Rhodiola L. for the first time. Compounds 2, 7, 8, 14, and 18 are obtained from this plant for the first time.

Objective: To study the chemical constituents from the roots and rhizomes of Rhodiola crenulata. Methods: The chemical constituents were isolated by repeated silica gel chromatography and medium pressure column chromatography. Their structures were identified by various spectroscopic data including ESI-MS, 1H-NMR, and 13C-NMR data. Results: Fourteen compounds were isolated from the ethyl acetate fractions of R. crenulata including 3,5-dihydroxy-3',4',7-trimethoxyflavone (1), 3,5,7,3'-tetrahydroxyflavone (2), 5,4'-dihydroxy-7,3'-dimethoxyflavone (3), kaemnpferol (4), kaemnpferol-3-O-β-D-glucopyranoside (5), kaemnpferol-3-O-α-L- rhamnopyranoside (6), tricin (7), tricin-7-O-β-D-glucopyranoside (8), quercetin (9), quercetin-3-O-β-D-glucopyranoside (10), quercetin-3-O-α-L-rhamnopyranoside (11), herbacetin-3-O-β-D-glucopyranoside (12), herbacetin-7-O-β-D-glucopyranoside (13), and herbacetin-7-O-α-L-rhamnoside (14). Conclusion: Compounds 1-3 are isolated from the plants in Rhodiola L. for the first time, compounds 5-6, 8, 10-13 are obtained from this plant for the first time.

To establish a method for directional separation of dehydrotumulosic acid from the extracts of Guizhi Fuling Capsule with molecular imprinting technique (MIT). Molecular imprinting polymer (MIP) was prepared by sol-gel process with dehydrotumulosic acid as molecular template to study the absorption property. The dehydrotumulosic acid was achieved from Guizhi Fuling Capsule by one-step separation with polymer as filler. The structure of dehydrotumulosic acid was identified on the basis of the spectral data and physicochemical property. The maximum binding capacity (Qmax) of MIP was 9.10 mg/g measured by Scatchard equation and the purity of dehydrotumulosic acid was 90.76% by HPLC. The established MIT for the directional separation of dehydrotumulosic acid from Guizhi Fuling Capsule is simple and benefit to reducing the solvent use during the separation process, which could offer a novel method for the separation and purification of dehydrotumulosic acid.

Objective: To establish a method for separation of isochlorogenic acids A, B, and C from Lonicerae Flos. Methods: Isochlorogenic acids A, B, and C in Lonicerae Flos were isolated and purified by macroporous resin and medium-low-pressure preparative chromatography. Their structures were identified on the basis of the spectral data and physicochemical property. Results: The contents of prepared isochlorogenic acids A, B and C were 98.7%, 99.2%, and 97.6%, respectively. Conclusion: This method is economic, simple, rapid, and effective for the preparation of isochlorogenic acids A, B, and C with high purity.

Objective To evaluate the efficacy of ultrasound-guided combined C5 and superficial cervical plexus block in patients undergoing clavicle surgery.Methods Sixty ASA physical status Ⅰ or Ⅱ patients,scheduled for elective clavicle surgery,were randomly divided into 2 groups (n =30 each) using a random number table:injection with 10 ml local anesthetic guided by ultrasound group (group U),and injection with 10 ml local anesthetic guided by anatomical landmark group (group A).A mixture of 0.375 ％ levobupivacaine and 1.0％ lidocaine was used.The time spent performing the block onset time of analgesia,onset time of analgesia in the medial border,midpoint and lateral border of the clavicle and duration of analgesia were measured.The effectiveness of block (excellent,good,failure) was assessed.The complications were observed.Results Compared with group A,the time spent performing the block was significantly prolonged,the onset time of analgesia in the lateral border and midpoint of the clavicle was shortened,the rate of excellent anesthesia was increased,and the duration of analgesia was prolonged in group U (P ＜ 0.05).No complications occurred in group U,while vascular puncture occurred in 3 cases,and one patient developed mild toxic reaction in group A.Conclusion Ultrasound-guided combined C5 and superficial cervical plexus block provides better block,with faster onset time of analgesia in the lateral border and midpoint of the clavicle,longer duration of analgesia and fewer complications as compared with that guided by anatomical landmarks in patients undergoing clavicle surgery.

OBJECTIVETo investigate the chemical constituents of dried whole plants of Artemisia annua.

METHODThe chemical constituents were isolated by repeated silica gel chromatography, medium pressure column chromatography, and semi-preparative HPLC, and their structures were elucidated by spectroscopic analyses and comparison of NMR data with those reported in literature.

RESULT15 compounds were isolated and identified to be 5-O-[(E)-Caffeoyl] quinic acid(l), 1,3-di-O-caffeoylquinic acid(2), 4 5-di-O-caffeoylquinic acid(3), 3, 5-di-O-caffeoylquinic acid (4), 3, 4-di-O-caffeoylquinic acid (5), methyl-3,4-di-O-caffeoylquinic acid(6), methyl-3,5-di-O-caffeoylquinic acid(7), 3,6'-O-diferuloylsucrose(8), 5'-β-D-glucopyranosyloxyjasmonic acid(9), Scopoletin(10), scoparone (11), 4-O-β-D-glucopyranosyl-2-hydroxyl-6-methoxyacetophenone (12), chrysosplenol D (13), casticin (14), chrysosplenetin(15).

CONCLUSIONCompounds 2, 6, 8 and 9 are obtained from the Artemisia genus for the first time. Compounds 7 and 15 are obtained from this plant for the first time.

Artemisia annua ; chemistry ; Chromatography, Gel ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Flavonoids ; chemistry ; isolation & purification ; Medicine, Chinese Traditional ; Plants, Medicinal ; Quinic Acid ; analogs & derivatives ; chemistry ; isolation & purification ; Silica Gel

OBJECTIVETo determine the contents of thymidine phosphorylase (TP) and dihydropyrimidine dehydrogenase (DPD) in pancreatic cancer to provide a basis for the clinical use of capecitabine in pancreatic cancer patients.

METHODSThe contents of TP and DPD in pancreatic cancer and adjacent normal tissues from 20 patients were determined by ELISA and the TP to DPD ratios in the cancer and adjacent normal tissue were compared.

RESULTSTP content was 5- to 283-fold higher in tumor tissue (mean 74-fold) than in the adjacent normal tissue (P < 0.01). DPD in the cancer tissue increased significantly. So did the TP to DPD ratio, when compared to that in normal pancreatic tissue (P < 0.01).

CONCLUSIONThe increased TP to DPD ratio in pancreatic cancer suggests that capecitabine could be activated by the cancer, these capable of selectively kill the tumor cells.

Dihydrouracil Dehydrogenase (NADP) ; metabolism ; Enzyme-Linked Immunosorbent Assay ; Humans ; Pancreas ; enzymology ; Pancreatectomy ; Pancreatic Neoplasms ; enzymology ; surgery ; Thymidine Phosphorylase ; metabolism

1,2,3,4,6-penta-O-galloyl-D-glucose (PGG) is one of the main active compounds of Guizhi Fuling capsule. Molecularly imprinted polymers (MIP) have high affinity toward template molecules synthesized by molecularly imprinted technology for its specific combined sites, which can overcome the shortcoming of traditional separation methods, such as complex operation, low efficiency, using large quantity of solvent and environmental pollution. In this paper, surface molecularly imprinted polymer (SMIP) was prepared by surface imprinting with PGG as the template molecule. Its adsorption capacity was measured by the scatchard equation. The separation of PGG from Guizhi Fuling capsule at preparatived scale was achieved with molecularly imprinted polymer as stationary phase and the purity was 90.2% by HPLC. This method can be used to prepare PGG from Guizhi Fuling capsule with large capacity and is easy to operate. It provides a new method for efficient separation and purification for other natural products.
Adsorption ; Capsules ; chemistry ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Hydrolyzable Tannins ; chemistry ; isolation & purification ; Molecular Imprinting ; Polymers ; chemical synthesis ; chemistry

Objective: To investigate the non-polysaccharide chemical constituents of Poria cocos and their anti-complementary activity. Methods: The anti-complementary bioassay-guided isolation was carried out with the hemolysis test as guide. All isolates were evaluated for their in vitro anti-complementary activities on the classical pathway. The structures were identified by various spectroscopic data including ESI-MS, 1H-NMR, and 13C-NMR data. Results: Eleven compounds were isolated from the EtOAc fraction of P. cocos extracts, including stigmasterol (1), lupeol (2), oleanolic acid (3), ursolic acid (4), polyporenic acid C (5), tumulosic acid (6), dehydrotumulosic acid (7), 3-epi-dehydrotumulosic acid (8), pachymic acid (9), dehydropachymic acid (10), and dehydrotrametenolic acid (11). Compounds 1-4 were obtained from this plant for the first time, and compounds 3-11 showed the anti-complementary activity in different degrees. Conclusion: Triterpenoid acids are the main anti-complementary constituents in the chemical constituents of P. cocos non-polysaccharides (CH50 0.10-0.27 g/L).

Objective To investigate the chemical constituents of the flower buds of Lonicera japonica. Methods The chemical constituents were isolated by repeated silica gel chromatography, Sephadex LH-20, medium pressure column chromatography and preparative HPLC, and their structures were elucidated by spectroscopic analyses and comparison of MS, 1H-NMR and 13C-NMR data with those reported in literature. Results Twelve compounds from the EtOAc fraction of L. japonica included p-hydroxybenzoic acid (1), vanillic acid (2), quercetin-3-O-α-L-rhamnopyranoside (3), kaemnpferol-3-O-β-D-glucopyranoside (4), 3',4',7-trihydroxy- 3,5-dimethoxyflavone (5), isorhamnetin (6), hyperoside (7), quercetin-7-O-β-D-glucopyranoside (8), secologanic acid (9), vogeloside (10), 5-O-caffeoylquinic acidmethylester (11) and stigmasterol (12). Conclusion Compound 5 is obtained from the plant in Lonicera Linn. for the first time; Compounds 1-4, 6, 11 and 12 are obtained from this plants for the first time.