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ginkgolide a/ginkgo
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Mixing Ginkgo biloba Extract with Sesame Extract and Turmeric Oil Increases Bioavailability of Ginkgolide A in Mice Brain.
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Ginkgo biloba extract (GBE) is widely used as herbal medicine. Preventive effect of GBE against dementia, including Alzheimer's disease, has been reported. The bioactive compounds in GBE that impart these beneficial effects, flavonoids and terpene lactones, have poor bioavailability. Our previous
Distinct role of bilobalide and ginkgolide A in the modulation of rat CYP2B1 and CYP3A23 gene expression by Ginkgo biloba extract in cultured hepatocytes.
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In the present study, primary cultures of rat hepatocytes were treated for 48 h with one of several extracts of Ginkgo biloba (10, 100, or 1000 microg/ml). Maximal increase in CYP2B1 and CYP3A23 mRNA levels was obtained at 100 microg/ml. This concentration of G. biloba extract also increased CYP3A2
Detection of ginkgolide A in Ginkgo biloba cell cultures.
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Ginkgo biloba cells were cultured in two 500 mL shake flasks and in 2 L and 6 L immobilization bioreactors using MS medium supplemented with 1 mg.L(-1) NAA, 0.1 mg.L(-1) K and 30 g.L(-1) sucrose. Specific growth rates were 0.06 d(-1), 0.11 d(-1) and 0.07 d(-1) for the 2 L and 6 L bioreactors and
An anxiolytic-like effect of Ginkgo biloba extract and its constituent, ginkgolide-A, in mice.
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The anxiolytic-like effects of Ginkgo biloba extract (GBE) and its four terpenoid components (ginkgolide-A, ginkgolide-B, ginkgolide-C, and bilobalide) were assessed using the elevated plus-maze test in mice. Administration of GBE as a single oral dose (0.5 or 1 g/kg, po) caused a state of
Three ginkgolide hydrates from Ginkgo biloba L.: ginkgolide A monohydrate, ginkgolide C sesquihydrate and ginkgolide J dihydrate, all determined at 120 K.
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A low-temperature structure of ginkgolide A monohydrate, (1R,3S,3aS,4R,6aR,7aR,7bR,8S,10aS,11aS)-3-(1,1-dimethylethyl)-hexahydro-4,7b-dihydroxy-8-methyl-9H-1,7a-epoxymethano-1H,6aH-cyclopenta[c]furo[2,3-b]furo[3',2':3,4]cyclopenta[1,2-d]furan-5,9,12(4H)-trione monohydrate, C(20)H(24)O(9) x H(2)O,
Pharmacokinetics and tissue distribution of ginkgolide A, ginkgolide B, and ginkgolide K after intravenous infusion of ginkgo diterpene lactones in a rat model.
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Ginkgo diterpene lactones are compounds that are extracted from the Ginkgo biloba leaf and possess pharmacologic activities with neuroprotective effects. To address the poor bioavailability of ginkgo diterpene lactones, ginkgo diterpene lactone meglumine injection (GDLI) was formulated and is
Ginkgolide A contributes to the potentiation of acetaminophen toxicity by Ginkgo biloba extract in primary cultures of rat hepatocytes.
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The present cell culture study investigated the effect of Ginkgo biloba extract pretreatment on acetaminophen toxicity and assessed the role of ginkgolide A and cytochrome P450 3A (CYP3A) in hepatocytes isolated from adult male Long-Evans rats provided ad libitum with a standard diet. Acetaminophen
Pharmacokinetics of the prototype and hydrolyzed carboxylic forms of ginkgolides A, B, and K administered as a ginkgo diterpene lactones meglumine injection in beagle dogs.
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Ginkgo diterpene lactones meglumine injection (GDLI) is a commercially available product used for neuroprotection. However, the pharmacokinetic properties of the prototypes and hydrolyzed carboxylic forms of the primary components in GDLI, i.e., ginkgolide A (GA), ginkgolide B (GB), and ginkgolide K
Effects of food and gender on the pharmacokinetics of ginkgolides A, B, C and bilobalide in rats after oral dosing with ginkgo terpene lactones extract.
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The ginkgo terpene lactones (GTL), mainly including bilobalide (BB), ginkgolide A (GA), ginkgolide B (GB) and ginkgolide C (GC) possess different biological activities such as peripheral vasoregulation, platelet-activating factor (PAF) receptor antagonism, neuroprotective properties and prevention
Validation of capillary gas chromatographic method for determination of bilobalide and ginkgolides A, B, C in Ginkgo biloba dry and liquid extracts.
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A method for identification and quantitative determination of ginkgolides A, B, and C and bilobalide in liquid and dry extracts of Ginkgo biloba extracts has been developed. Determinations made by employing capillary gas chromatography technique with FID detection were preceded by derivatization
[Pharmacokinetic properties of Bilobalide and Ginkgolides A and B in healthy subjects after intravenous and oral administration of Ginkgo biloba extract (EGb 761)].
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The pharmacokinetics of Ginkgolide A, Ginkgolide B and Bilobalide, which are compounds extracted from the dried leaves of the Ginkgo biloba tree, were investigated in 12 young healthy volunteers (six men and six women; mean +/- SD age = 25 +/- 5 years) after single-dose administration of Ginkgo
Thin layer drying behavior of Ginkgo biloba L. leaves with respect to Ginkgolide A and Bilobalide content and microbial load.
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Influence of drying temperature (30-50 °C) and relative humidity (RH: 30-80%) on moisture content, energy requirement and quality of Ginkgo biloba leaves with respect to chemical markers namely Ginkgolide A (GA) and Bilobalide (BB), and microbial load of dried materials has been analyzed.
Isolation of bilobalide and ginkgolide A from Ginkgo biloba L. shorten the sleeping time induced in mice by anesthetics.
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The leaves of Ginkgo biloba L. and aqueous extract from them shortened the sleeping time induced in mice by anesthetics (hexobarbital, alpha-chloralose and urethane, i.p.). Two characteristic terpenoids in G. biloba, bilobalide and ginkgolide A, significantly shortened the sleeping time induced by
Pharmacokinetics of bilobalide, ginkgolide A and B after administration of three different Ginkgo biloba L. preparations in humans.
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A sensitive LC-ESI-MS method with a solid-phase extraction was established for the determination of bilobalide, ginkgolide A and ginkgolide B in human plasma; bioavailability and pharmacokinetics of three different Ginkgo biloba L. preparations have been investigated. The preparations used in the
Determination of Ginkgolides A, B, C, J and Bilobalide in Plasma by LC-ESI (-)/MS/MS (QQQ) and its Application to the Pharmacokinetic Study of Ginkgo Biloba Extract in Rats.
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A simple, rapid, and specific high-performance liquid chromatograph coupled with a tandem mass spectrometry method has been developed and validated for the quantification of ginkgolides in rat plasma, and the main pharmacokinetic parameters of ginkgolides after oral administration of Ginkgo biloba
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