OBJECTIVETo identify compounds that may be responsible for catnip response of Actinidia macrosperma, and compare chemical compositions in the wild and in vitro regenerated plants.

METHODSGC-MS and relative retention indices with n-alkanes as reference points were used for compound identification, and component relative percentage was calculated based on GC peak areas without using correction factors.

RESULTSThere are 28 compounds (92.72%) and 15 compounds (93.88%) identified in the essential oils from the wild and regenerated plants, respectively. Dihydronepetalactone, iridomyrmecin, and dihydroactinidiolide, which are believed to be attractive to felines, are present in both wild and regenerated plants. Actinine was not detected, and beta-pheylethyl alcohol was only present in wild plant. In addition, short-chain enol derivatives, messengers in chemical communication, are commonly present in wild plant of A. macrosperma, but absent in regenerated one.

CONCLUSIONDihydronepetalactone, iridomyrmecin, and dihydroactinidiolide are responsible for the catnip response of A. macrosperma.

Actinidia ; chemistry ; Animals ; Cats ; China ; Nepeta ; chemistry ; Oils, Volatile ; analysis

OBJECTIVETo observe effect and mechanism of n-Butanol lysate of alcohol extracts from Actinidia rufa root (monomer of R6,R8).

METHODTunel, Wright's stain with Giemsa's stain dyeing, and Hoechst 33258-PI double dyeing assay were used to detect the apoptosis of SGC7901 tumor cells treated with R6, R8. The SGC7901 tumor cells were randomly divided into control group and two treatment groups administered 0.05 g x L(-1) R6, R8, respectively, for 72 h). FCM assay was used to detect the apoptosis. Agarose electrophoresis assay was used to detect DNA strand break of tumor cells and reveal anti-tumor action mechanism.

RESULTThe apoptosis percentage of the tumor cell in 24 h, 48 h, 72 h was (17.08 +/- 2.78)% , (29.68 +/- 2.96)%, (52.46 +/- 3.81)%; (14.75 +/- 2.14)%, (27.35 +/- 3.79)%, (45.64 +/- 5.24)%, respectively, for the treatment group, significantly higher than that in the control group (1.94 +/- 1.55)%, (2.78 +/- 1.84)%, (11.8 +/- 2.79)% (P < 0.01) by tunnel assay. Wright's stain with Giemsa's stain dyeing assay, Hoechst 33258-PI and FCM double dyeing assay showed same action. R6 and R8 had the effect of inducing the DNA histogram of tumor cells (P < 0.01).

CONCLUSIONThe anti-tumor mechanisms may be associated with inducing the injury of DNA and stimulating apoptosis.

Actinidia ; chemistry ; Apoptosis ; drug effects ; Cell Line, Tumor ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Flow Cytometry ; Humans ; Immunohistochemistry ; Plant Roots ; chemistry

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

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

RESULTSix 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).

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

1-Butanol ; chemistry ; Actinidia ; chemistry ; China ; Drugs, Chinese Herbal ; analysis ; Magnetic Resonance Spectroscopy ; Mass Spectrometry ; Plant Roots ; chemistry

OBJECTIVETo study the chemical constituents from the root of Actinidia chinensis.

METHODThe roots of A. chinensis were extracted with 95% EtOH. The EtOH extract was suspended in H2O and extracted with petroleum ether, EtOAc and BuOH successively. The compounds were isolated with column chromatography from the EtOAc fraction, and elucidated on the basis of spectral analysis(MS, IR, 1H-NMR, 13C-NMR).

RESULTSeven compounds were isolated from the root of A. chinensis, and the structures were identified as 2alpha-hydroxyoleanolic acid (1), 2alpha-hydroxyursolic acid (2), euscaphic acid (3), 23-hydroxyursolic acid (4), 3beta-O-acetylursolic acid (5), ergosta4, 6, 8, (14), 22-tetraen-3-one (6), beta-steriol (7).

CONCLUSIONAll the compounds were obtained from the root of A. chinensis for the first time.

Actinidia ; chemistry ; Oleanolic Acid ; analogs & derivatives ; chemistry ; isolation & purification ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Sitosterols ; chemistry ; isolation & purification ; Triterpenes ; chemistry ; isolation & purification

OBJECTIVETo determine actinoside C in the leaves of Actinidia kolomikta with different growth periods.

METHODThe separation was performed at 25 degrees C on ZORBAX Extend C18 column (4.6 mm x 250 mm, 5 microm), using amixture of methanol and water (51:49) as a mobile phase. The flow rate was 1.2 mL x min(-1), and the wavelength for measurement was 267 nm.

RESULTThe results showed that the contents of actinoside C in the leaves of A. kolomikta were variety in different growth periods. Actinoside C could reach its highest content in the middle ten days of June, then the content would decrease in the middle ten days of July slightly, it could reach their lowest content in the middle ten days of August.

CONCLUSIONThe optimal collective date for A. kolomikta are in the middle ten days of June.

Actinidia ; chemistry ; growth & development ; Chromatography, High Pressure Liquid ; methods ; Flavones ; analysis ; chemistry ; Glycosides ; analysis ; chemistry ; Molecular Structure ; Plant Leaves ; chemistry ; growth & development ; Plants, Medicinal ; chemistry ; growth & development ; Seasons

Flavonoids are a large group of phenolic secondary metabolites havinga wide range of biochemical and pharmacological effects. Quantitative analysis of flavonoid profiles in the genus Actinidia, which has not been intensively conducted, is useful to a better understanding of the pattern and distribution of flavonoids. In the present work, a liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method was developed to profile the flavonoids, which was then used to determine the dynamic change of 17 biologically active flavonoids in the leaves of Actinidia valvata at the main growing stages, including glucuronides and acylated di- and triglycosides of flavonoids. The contents of flavonoid triglycosides were significantly higher than other flavonoids. The highest concentrations of kaemperol glycosides were observed in June, while other flavonoids showed highest concentrations in October. On the other hand, the contents of four isorhamnetin glycosides were increased sharply in September to October. The flavonoid profiles seem to be related to temperature, UV-B, and water deficit. Further studies are required to examine the functions of flavonoids in the Actinidia valvata and the underlying molecular mechanisms of actions.
Actinidia ; chemistry ; growth & development ; Chromatography, High Pressure Liquid ; methods ; Flavonoids ; analysis ; chemistry ; Plant Leaves ; chemistry ; Seasons ; Tandem Mass Spectrometry ; methods ; Ultraviolet Rays

OBJECTIVETo study the chemical constituents of root of Actinidia macrosperma.

METHODChromatographic methods were used to isolate compounds from A. macrosperma and spectroscopic methods were used to identify the structures of the isolated compounds.

RESULTEight compounds were obtained and identified as 12-oleanene-2alpha, 3alpha, 24-triol (1), isotachioside (2), asiatic acid (3), catechin (4), epicatechin (5), ursolic acid (6), beta-daucosterol (7), beta-sitosterol (8).

CONCLUSIONAll these compounds were isolated from this plant for the first time, compound 1, 2 were obtained from this genus for the first time.

Actinidia ; chemistry ; Catechin ; chemistry ; isolation & purification ; Glucosides ; chemistry ; isolation & purification ; Hydroquinones ; chemistry ; isolation & purification ; Oleanolic Acid ; analogs & derivatives ; chemistry ; isolation & purification ; Pentacyclic Triterpenes ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Triterpenes ; chemistry ; isolation & purification

OBJECTIVETo observe the inhibitory effect of extract from Actinidia argutaor on in vivo and in vitro carcinomata, and explore its mechanism.

METHODThe in vivo S180 and H22 model were used to observe the effect of A. argutaor on inhibitory rate of carcinomata, organ relative weight of spleen and thymus gland and the release of tumor necrosis factor. A549 cells were exposed to extract from A. argutaor with different concentrations for 24, 48, 72 hours. MTT assay was used to evaluate the inhibiting effects of extract from A. argutaor on the proliferation of the cells. Flow cytometry was applied to detect cell cycle.

RESULTThe inhibitory effects of the extracts on in vivo and in vitro carcinomata were observed, the inhibitory rate for S180 and H22 line was 33.32% and 34.62% respectively. The extracts could inhibit the proliferation of A549 cells during G0-G1 period and significantly decrease the cell ratio of S stage.

CONCLUSIONThe extracts from A. argutaor showed a good antineoplastic activity.

Actinidia ; chemistry ; Animals ; Antineoplastic Agents, Phytogenic ; chemistry ; pharmacology ; therapeutic use ; Cell Cycle ; drug effects ; Cell Line, Tumor ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; therapeutic use ; Male ; Mice ; Mice, Inbred ICR

A highly sensitive liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was developed for the determination of actinoside E in rat plasma. The analytes were extracted by ethyl acetate and an analogue of actinoside F was used as the internal standard. The mobile phase consisted of methanol-water (50: 50, V/V) containing 0.1% formic acid was delivered at a flow rate of 0.3 mL·min(-1) to a Zorbax SB-C18 column (100 mm × 2.1 mm, 3.5 μm). The detection was performed by electrospray ionization mass spectrometry in the negative multiple reaction monitoring mode with a chromatograph run time of 3.0 min. Calibration curves of actinoside E were linear in the range of 0.5-2 500 ng·mL(-1). In this range, intra- and inter-day precision ranged from 1.7% to 7.5% and 2.0% to 8.9%, respectively. The accuracy ranged from 95.7% to 108.6%, and extraction recovery from 83.2% to 85.5%. This method was successfully applied to a pharmacokinetic study of actinoside E in rats after intravenous (5 mg·kg(-1)) and oral (100 mg·kg(-1)) administration, and the results showed that actinoside E was poorly absorbed with an absolute bioavailability being approximately 0.27%.
Actinidia ; chemistry ; Animals ; Chromatography, High Pressure Liquid ; methods ; Glycosides ; blood ; pharmacokinetics ; Kaempferols ; blood ; pharmacokinetics ; Male ; Plant Extracts ; blood ; pharmacokinetics ; Rats ; Rats, Sprague-Dawley ; Sensitivity and Specificity ; Tandem Mass Spectrometry ; methods

OBJECTIVETo investigate the effect of Actinidia chinensis Planch polysaccharide (ACPS) on the growth and apoptosis of human gastric cancer SGC-7901 cells, and to explore the effect of SGC-7901 cells on p-p38 expression.

METHODSThe inhibition rates at different concentrations of ACPS on SGC-7901 cells at 24, 48, and 72 h were detected using CCK-8 method. Apoptosis ratios in SGC-7901 were determined by flow cytometry after 48-h treatment of different concentrations of ACPS. The expression of pro-caspase-9, PARP, and p-p38 in SGC-7901 cells after treated by different concentrations of ACPS was detected using Western blot. The expression of pro-caspase-9, PARP, and p-p38 was detected after SGC-7901 cells were pre-treated by p38 specific inhibitor.

RESULTSCompared with the control group, the optical density of SGC-7901 cells decreased after treated by 1, 2.5, 5, and 10 mg/mL ACPS (P < 0.05). Meanwhile, the longer the acting time, the lower the optic density (P < 0.01). IC50 was 7.43 mg/mL at 24 h; 3.88 mg/mL at 48 h, and 1.32 mg/mL at 72 h respectively. ACPS suppressed the protein expression of pro-caspase-9 (P < 0.01) and up-regulated the expression of PARP (89KD) (both P < 0.01). Further study showed that the protein expression of p-p38 was up-regulated in SGC-7901 cells treated by ACPS of different concentrations at 24 h (P < 0.05). The expression of phosphorylation p38 and the ACPS induced apoptosis of SGC-7901 cells could be inhibited after treated by specific inhibitor for 2 h.

CONCLUSIONSACPS could inhibit the growth of SGC-7901 cells and induce apoptosis. The underlying mechanism of inducing apoptosis was partially due to activating the p38MAPK path and further activating Caspase9 and PARP, finally leading to cell death.

Actinidia ; chemistry ; Apoptosis ; drug effects ; Caspase 9 ; metabolism ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Humans ; Poly (ADP-Ribose) Polymerase-1 ; Poly(ADP-ribose) Polymerases ; metabolism ; Polysaccharides ; pharmacology ; Stomach Neoplasms ; metabolism ; pathology ; p38 Mitogen-Activated Protein Kinases ; metabolism