[Macroscopic and microscopic identification of Zhuang medicine Tetrastigma planicaule]

OBJECTIVE

To study the macroscopic and microscopic characteristics of Zhuang medicine Tetrastigma planicaule.

METHODS

Macroscopic and microscopic identification were studied.

RESULTS

The microscopic characteristics were significant. The root had more than 10 layers of cork cells arranging in line. The starch grain and calcium oxalate cluster crystals distributed in the phloem parenchymas, and mucilage cells scattered in the cortex of the stem. There were 8 vascular bundles in the vein of leaves.

CONCLUSION

This study provides a scientific basis for the identification and utilizing of Tetrastigma planicaule.

[Study on volatile components from flowers of Gymnema sylvestre]

OBJECTIVE

To analyze the volatile components from flowers of Gymnema sylvestre.

METHODS

Volatile components of flowers of Gymnema sylvestre were extracted by water vapor distilling, and the components were separated and identified by GC-MS.

RESULTS

55 components were separated and 33 components were identified, accounting for 88.73% of all quantity. The principal volatile components are Phytol, Pentacosane, 10-Heneicosene (c, t), 3-Eicosene, (E) -and 2-Methyl-Z-2-docosane.

CONCLUSION

The research can pro-vide scientific basis for chemical component research of flowers of Gymnema sylvestre.

[Study on chemical constituents of petroleum ether portion from seed of Picria felterrae]

OBJECTIVE

To study the chemical constituents of petroleum ether portion from Seed of Picria felterrae.

METHODS

The chemical constituents were extracted and isolated with solvent and chromatography, and the chemical structures were determined on the basis of physicochemical properties and spectral data (UV, IR, 1H-NMR, 13C-NMR, MS).

RESULTS

Six chemical constituents were identified as follows: chrysophanol (I), 1-hydroxy-6-methyl-anthraquinone (II), beta-sitosterol (III), betulin (IV), N-benzoyl-phenylalanyl-L-phenylalaninol acetate (V) and picfeltarraenone I (VI).

CONCLUSION

Compounds I, II and IV are isolated from this plant for the first time.

[Study on fingerprints of the stems of Actinidia deliciosa by HPLC]

OBJECTIVE

To establish the fingerprint spectrum of the stems of Actinidia deliciosa by HPLC.

METHODS

HPLC fingerprint analysis of the stems of Actinidia deliciosa was developed and the thermo Hypersil BDS C18 column (250 mm x 4.6 mm, 5 microm) was used. The mobile phase consisted of Acetonitril-0.1% phosphoric acid with gradient elution. The column temperature was 20 degrees C, the detective wavelength was 296 nm, the flow rate was 1.0 mL/min, and the sample injection was 20 microL.

RESULTS

Fingerprint spectrum of the stems of Actinidia deliciosa was established, and 16 samples of different origin Actinidia deliciosa were detected. Twenty-eight peaks in chromatogram were common. There was a high similarity and each chromatographic peak was obtained with good separation correlation according to the technical requirements of fingerprint of Chinese traditional medicine.

CONCLUSION

This method is accurate, reliable and provides a scientific basis for controlling the quality of the stems of Actinidia deliciosa.

[Experimental [corrected] study of hypoglycemic activity of conduritol A of stems of Gymnema sylvestre]

OBJECTIVE

To investigates the mechanism of hypooglycemic effect of conduritol A of stems of Gymnema sylvestre.

METHOD

Fourteen days later after administration, observation is taken on the change of these mice and rats weight, the FBG, TG, CHO, SOD, MDA, INS, TNF in serum were also detected with enzymology method and Radioimmuoassay method. Take the liver to determine the disposal of glucose. Take the pancreas to do the HE and immunohistochemistrial staining, and show pancreas islet beta-cell. Calulate thymus, pancreas, splenica index.

RESULT

Compared with diabetic model mice, high and middosage of conduritol A could remarkably reduce fasted blood sugar in diabetic rats induced by alloxan (P < 0.01). Significantly increase the level of serum insulin (P < 0.05). Activity of SOD was obviously increased, and amount of MDA was obviously decreased (P < 0.05). The amount of conduritol A disposal of glucose was obviously increased (P < 0.05). Significantly increase thymus, pancreas, splencia index (P < 0.01 or 0.05); inhibited the atrophy of thymus, pancreas, splencias of the diabetic rats induced by alloxan. Compared with diabetic model group, cell structure and form of conduritol A had been some way improved. The immunohistochemistry results showed that beta-cells numbers of pancreas in each conduritol A group were more than those in the model group.

CONCLUSION

Conduritol A could have an effect on regulating the metabolism of blood lipid, free-radical scavenging, enhancing the antioxidant ability, potentiating immune function. Promoting synthesis of hepatic to decrease fasted blood suger.

[Studies on chemical constituents in n-butyl alcohol extract of roots of Actinidia deliciosa in Guangxi]

OBJECTIVE

To study the chemical constituents of n-butyl alcohol extract in the roots of Actinidia deliciosa in Guangxi.

METHOD

The constituents were separated with various chromatographic techniques and their structures were elucidated by means of physicochemical properties and the analysis of their spectral data.

RESULT

Six compounds were isolated and identified as eriantic acid B (1), 2alpha, 3beta, 24-trihydroxyursa-12-en-28-oic acid (2), 2alpha, 3alpha, 24-trihydroxyursa-12-en-28-oic acid (3), 2alpha, 3alpha, 23-tri-hydroxyursa-12, 20 (30)-dien-28-oic acid (4), 2alpha, 3alpha, 24-trihydroxyursa-12, 20 (30)-dien-28-oic acid (5), n-butyl-O-beta-D-fruto-pyranoside (6).

CONCLUSION

Compounds 1-4, 6 were obtained from this plant for the first time. Compound 6 was obtained from the genus Actinidia for the first time.

[Analysis of the volatile oils chemical constituents of roots of Actinidia deliciosa]

OBJECTIVE

To analyze the volatile oils chemical constituents of roots of Actinidia deliciosa.

METHODS

The volatile oils fraction of roots of Actinidia deliciosa. were extracted by water vapor distilling, and then the constituents were separated and identified, by GC-MS.

RESULTS

16 compounds were identified, accounting for 89.37% of all quantity.

CONCLUSION

The principal volatile oils chemical constituents are Phenol, 2,4-bis(1,1-dimethylethl)-; 2-Propenoic acid, 3-(4-methox yphenyl)-, ethyl ester; 9-Octadecenoic acid (Z)-, methyl ester; Cyclotetrasiloxane, octamethyl-.

[Quality standards of huanglian jiedu pills]

TLC and microscopy have been used in the qualitative study of Huanglian Jiedu Pills. The contents of berberine hydrochloride and baicalin in these Pills have been determined. The proposed method can be used to control the quality of Huanglian Jiedu Pills.