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Dynamic Variation Patterns of Aconitum Alkaloids in Daughter Root of Aconitum Carmichaelii (Fuzi) in the Decoction Process Based on the Content Changes of Nine Aconitum Alkaloids by HPLC- MS- MS.
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The chemical components in the decoctions of Chinese herbal medicines are not always the same as those in the crude herbs because of the insolubility or instability of some compounds. In this work, a high-performance liquid chromatography (HPLC) coupled with electrospray ionization (ESI) tandem mass
pH-Zone-Refining Counter-current Chromatography for Two New Lipo-alkaloids Separated from Refined Alkaline Extraction of Kusnezoff monkshood root.
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An efficient and refined method for the separation of six aconitine-type alkaloids from the alkaline prepared "Kusnezoff monkshood root" was extablished. It is the first study that two new lipo-alkaloids were successfully isolated from refined sample by pH-zone-refining counter-current
[Chemical constituents of Aconitum brachypodum from Dong-Chuan area].
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Aconitum brachypodum is traditionally known to be toxic chinese medicie, but its chemical constituents is not enough studied to date. To further elucidate the chemical constituents of A. brachypodum, 80% ethanol extract of A. brachypodum collected from Dong-Chuan area was investigated, which led to
Study on the Alkaloids in Tibetan Medicine Aconitum pendulum Busch by HPLC-MSn Combined with Column Chromatography.
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A rapid, convenient and effective identification method of alkaloids was established and an attempt on isolating and analyzing the alkaloids in Aconitum pendulum Busch was conducted successfully. In this article, four high-content components including deoxyaconitine, benzoylaconine, aconine and
An Efficient High-performance Liquid Chromatography Combined with Electrospray Ionization Tandem Mass Spectrometry Method to Elaborate the Changes of Components Between the Raw and Processed Radix Aconitum kusnezoffii.
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BACKGROUND
Crude radix Aconitum kusnezoffii (RAK) has great toxicity. Traditional Chinese medicine practice proved that processing may decrease its toxicity. In our previous study, we had established a new method of RAK processing (Paozhi). However, the mechanism is yet not perfect.
OBJECTIVE
To
The Effects of Rheum palmatum L. on the Pharmacokinetic of Major Diterpene Alkaloids of Aconitum carmichaelii Debx. in Rats.
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OBJECTIVE
Aconitum carmichaelii Debx. (Fuzi) is usually compatible with Rheum palmatum L. (Dahuang) in clinic. The study is conducted to investigate the influence of Dahuang on the pharmacokinetics of Fuzi.
METHODS
Twelve rats were randomly divided into two groups. Fuzi group was orally administered
[Study on processing principle of Aconitum pendulum].
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OBJECTIVE
To study the processing principles of different processed products of Aconitum pendulum.
METHODS
Using high performance liquid chromatography and acute toxicity test to compare the changes in chemical composition and toxicity of the roots and processed products of A. pendulum.
RESULTS
The
Four new diterpenoid alkaloids from Aconitum japonicum subsp. subcuneatum.
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Diterpenoid alkaloids with remarkable chemical properties and biological activities are frequently found in plants of the genera Aconitum, Delphinium, and Garrya. Accordingly, several diterpenoid alkaloid constituents of Aconitum and Delphinium plants as well as their derivatives exhibited cytotoxic
Studies on the stability of diester-diterpenoid alkaloids from the genus Aconitum L. by high performance liquid chromatography combined with electrospray ionisation tandem mass spectrometry (HPLC/ESI/MSn).
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The stability of diester-diterpenoid alkaloids (DDA) from plants of the genus Aconitum L. has been studied in different solvents and pH buffers. The HPLC/ESIMS method for analysing the concentration of DDA was established and DDA's decomposition products were elucidated by HPLC/ESI-MS/MS(n). In
Induction of P-glycoprotein expression and activity by Aconitum alkaloids: Implication for clinical drug-drug interactions.
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The Aconitum species, which mainly contain bioactive Aconitum alkaloids, are frequently administered concomitantly with other herbal medicines or chemical drugs in clinics. The potential risk of drug-drug interactions (DDIs) arising from co-administration of Aconitum alkaloids and other drugs
[Study on Aconitum diterpenoid alkaloids from flowers of Aconitum kusnezoffi and its decoction by ESI-MS].
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OBJECTIVE
To study the change of chemical compound after decocting the flowers of Aconitum kusnzoffii Reichb (FAK) by analyzing the alkaloids in FAK and the decoction of FAK qualitatively.
METHODS
The alkaloid extracts of FAK and alkaloid mixtures in the decoction of FAK were directly analyzed by
Determination of Aconitum alkaloids in blood and urine samples. II. Capillary liquid chromatographic-frit fast atom bombardment mass spectrometric analysis.
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Determination of fourteen alkaloids, toxic Aconitum alkaloids, aconitine, mesaconitine, jesaconitine, hypaconitine and deoxyaconitine, and their hydrolysis products, benzoylaconines and aconines, have been established using capillary liquid chromatography (LC) fast atom bombardment mass spectrometry
Ester Hydrolysis Differentially Reduces Aconitine-Induced Anti-hypersensitivity and Acute Neurotoxicity: Involvement of Spinal Microglial Dynorphin Expression and Implications for Aconitum Processing.
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Aconitines, including bulleyaconitine A, probably the most bioactive and abundant alkaloids in Aconitum plant, are a group of diester C19-diterpenoid alkaloids with one acetylester group attached to C8 of the diterpenoid skeleton and one benzoylester group to C14. Hydrolysis of both groups is
Determination of Five Aminoalcohol-diterpenoid Alkaloids in the Lateral Root of Aconitum carmichaeli by HPLC-ELSD with SPE.
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A convenient and accurate high-performance liquid chromatography coupled with evaporative light scattering detection (HPLC-ELSD) method using solid phase extraction (SPE) was established for quantification of five aminoalcohol-diterpenoid alkaloids (ADAs), including mesaconine, aconine, hypaconine,
Multidrug resistance-associated protein 2 is involved in the efflux of Aconitum alkaloids determined by MRP2-MDCKII cells.
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OBJECTIVE
Aconitum alkaloids mainly contain highly toxic aconitine (AC), mesaconitine (MA), and hypaconitine (HA) and less toxic benzoylaconine (BAC), benzoylmesaconine (BMA), benzoylhypaconine (BHA), aconine, mesaconine, and hypaconine. The efflux transporters including P-glycoprotein (P-gp),
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