notoginsenoside r2/ginseng

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P90RSK and Nrf2 Activation via MEK1/2-ERK1/2 Pathways Mediated by Notoginsenoside R2 to Prevent 6-Hydroxydopamine-Induced Apoptotic Death in SH-SY5Y Cells.

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6-Hydroxydopamine (6-OHDA) is known to contribute to neuronal death in Parkinson's disease. In this study, we found that the preincubation of SH-SY5Y cells for 24 h with 20 μ M notoginsenoside R2 (NGR2), which is a newly isolated notoginsenoside from Panax notoginseng, showed neuroprotective effects

Simultaneous determination of triterpene saponins in ginseng drugs by high-performance liquid chromatography.

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A HPLC method for the simultaneous determination of 11 triterpene saponins with four-type aglycones (protopanaxadiol, protopanaxatriol, ocotillol and oleanolic acid types) in Ginseng drugs was developed and validated. Using a gradient of acetonitrile and 10 mM K-phosphate buffer (pH 5.80) as the

[Research of ginsenosides in kou zi qi using HPLC-MS-MS].

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OBJECTIVE To analyze the ginsenosides in Kou zi qi (rhizomes of Panax japonicus C. A. Mey. var. major (Burkill) C. Y. Wu et K. M. Feng), and to supply evidences for chemotaxanology of Panax species and clinical uses of Kou zi qi. METHODS The ginsenosides were isolated by HPLC, then the positive- and

[Chemical constituents from processed rhizomes of Panax notoginseng].

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To investigate the chemical constituents of the processed rhizomes of Panax notoginseng, their 70% ethanol extract was chromatographed on macroporous resin (SP825), silica gel, RP-C18 and semi-preparative HPLC to afford compounds 1-23. On the basis of physicochemical properties and spectral data

Simultaneous determination of nucleobases, nucleosides and saponins in Panax notoginseng using multiple columns high performance liquid chromatography.

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A new multiple columns HPLC method for simultaneous determination of 16 characteristic components, 5 nucleobases and nucleosides (uracil, cytidine, uridine, guanosine and adenosine), and 11 saponins (notoginsenoside R1, ginsenoside Rg1, ginsenoside Re, notoginsenoside R4, notoginsenoside Fa,

Panajaponin, a new glycosphingolipid from Panax japonicus.

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Panajaponin, a new glycosphingolipid compound (1), together with eight known compounds, 28-glu-oleanolic acid ester (2), chikusetsusaponin IVa (3), chikusetsusaponin IV (4), ginsenoside Ro (5), ginsenoside Re (6), notoginsenoside R2 (7), ginsenoside Rg2 (8) and adenosine (9), was isolated from Panax

Saponins composition of rhizomes, taproots, and lateral roots of Satsuma-ninjin (Panax japonicus).

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A new dammarane-type triterpenoid saponin, chikusetsusaponin VII (1), and nineteen known triterpenoid saponins, ginsenoside Rb1 (2), ginsenoside Rb3 (3), ginsenoside Rc (4), ginsenoside Rd (5), ginsenoside Re (6), ginsenoside Rg1 (7), ginsenoside Rg2 (8), ginsenoside Rh1 (9), notoginsenoside R1

Potential neuroprotective activity of Ginseng in Parkinson's disease: a review.

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Parkinson's disease is a chronic, multifactorial and progressive neurologic condition that affects around six million people worldwide, normally over 60 years of age, and is characterized by neurodegeneration of dopaminergic neurons in the substantia nigra. The species of the genus Panax, popularly

[Study on the chemical constituents of the roots of commercial ginseng].

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OBJECTIVE To isolate and elucidate the constituents from the roots of Commercial Ginseng. METHODS Column chromatography and HPLC were used to isolate chemical constituents. Physico-chemical characters and spectr-oscopic analysis were employed for structural identification. RESULTS Sixteen compounds

[Chemical constituents of Chinese red ginseng].

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The chemical constituents of Chinese red ginseng (Panax ginseng) were investigated. The chemical constituents were isolated and purified by silca gel, ODS, and Sephedex LH-20, column chromatography, and preparative HPLC. Their chemical structures were elucidated on the basis of physicochemical

[Chemical constituents from roots and rhizomes of Panax ginseng cultivated in Jilin province].

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The chemical constituents of the roots and rhizomes of Panax ginseng were systematically investigated by various column chromatographic methods including Amberlite XAD-4 macroporous adsorptive resins and silica gel as well as high-performance liquid chromatography, and their chemical structures were

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