atractylenolide ii/atractylodes macrocephala

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Simultaneous determination of atractylenolide II and atractylenolide III by liquid chromatography-tandem mass spectrometry in rat plasma and its application in a pharmacokinetic study after oral administration of Atractylodes Macrocephala Rhizoma extract.

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Atractylenolide II (AII) and atractylenolide III (AIII) are the major active components in Atractylodes Macrocephala Rhizoma (AMR). In this study, a sensitive, rapid and selective liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous

[Process mechanism of Atractylodes macrocephala and conversion of sesquiterpenes].

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OBJECTIVE To research the process mechanism of Atractylodes macrocephala and conversion of sesquiterpenes from it. METHODS The contents of atractylenolide I, II and III in the different processed herbal medicines were determined by HPLC. The conversion of the sesquiterpenes was proved by the

New bisesquiterpenoid lactone from the wild rhizome of Atractylodes macrocephala Koidz grown in Qimen.

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The rhizomes of Atractylodes macrocephala are used as both a food source and traditional Chinese medicine in China. A phytochemical investigation was carried out on wild A. macrocephala grown in Qimen County in eastern China, and yielded a novel bisesquiterpenoid lactone, namely, biatractylenolide

Atractylenolide II prevents radiation damage via MAPKp38/Nrf2 signaling pathway.

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Ionizing radiation (IR) can act as a negative factor for human homeostasis, by causing and even aggravating a series of pathological conditions. To protect the intactness of normal tissues, effective anti-radiation drugs are urgently needed for alleviating the outcomes of radioactive damage. In this

Metabolomic study of raw and processed Atractylodes macrocephala Koidz by LC-MS.

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Bai-Zhu, the dried rhizome of Atractylodes macrocephala Koidz (AMK), is widely used as a tonic herbal in eastern Asia. It is commonly used as prepared slices in clinic by stir-frying with wheat bran (processed AMK). In the theories of traditional Chinese medicine (TCM), Bai-Zhu possesses

Two new compounds from Atractylodes macrocephala with neuroprotective activity.

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In the present study, two new compounds, together with six known compounds, were isolated from rhizome of Atractylodes macrocephala Koidz by a series of silica gel, ODS column chromatography, and preparative HPLC. Their structures were characterized as atractylenolide II (1), atractylenolide I (2),

Four new eudesmane-type sesquiterpenoid lactones from atractylenolide II by biotransformation of rat hepatic microsomes.

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The biotransformation of atractylenolide II, a major bioactive principle of the rhizomes of Atractylodes macrocephala Koidz., was investigated in vitro by incubation with rat hepatic microsomes pretreated with sodium phenobarbital. The biotransformation products were extracted and purified by

Atractylenolide II induces G1 cell-cycle arrest and apoptosis in B16 melanoma cells.

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BACKGROUND Atractylenolide II (AT-II) is a sesquiterpene compound isolated from the dried rhizome of Atractylodes macrocephala (Baizhu in Chinese), which is traditionally prescribed for melanoma treatment by Chinese medicine practitioners. Our previous study showed that AT-II can inhibit B16 cells

Atractylenolide II Inhibits Proliferation, Motility and Induces Apoptosis in Human Gastric Carcinoma Cell Lines HGC-27 and AGS.

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Atractylenolide II (AT-II) exhibits several biological and pharmacological functions, especially anti-cancer activity as the major sesquiterpene lactones isolated from Atractylodes macrocephala (also named Baizhu in Chinese). However, the effects and mechanisms of AT-II on human gastric cancer

Chemopreventive effects of atractylenolide II on mammary tumorigenesis via activating Nrf2-ARE pathway.

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In the studies of chemoprevention, the Nrf2-ARE signaling pathway has received widespread attention due to its anti-inflammatory and anti-oxidation effects. Our previous study indicated that atractylenolide II, which is an active component of Atractylodes macrocephala Koidz, is a potential activator

Simultaneous determination of four sesquiterpenoids in Atractylodes Macrocephala Rhizoma by GC-FID: optimisation of an ultrasound-assisted extraction by central composite design.

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BACKGROUND Atractylodes Macrocephala Rhizoma (AMR) is a traditional Chinese medicine containing several sesquiterpenoids with a series of effects. These bioactive compounds may be used as chemical markers for the quality control of AMR. It is necessary to optimise the extraction method and

Inflammatory Inhibitory Activity of Sesquiterpenoids from Atractylodes macrocephala Rhizomes.

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Three new sesquiterpenoids, 13-hydroxyl-atractylenolide II (1), 4-ketone-atractylenolide III (2), and eudesm-4(15)-ene-7β,11-diol (3), along with eleven known compounds (4-14), were isolated from the rhizomes of Atractylodes macrocephala. The structures and relative configurations of 1-3 were

Sesquiterpenoids from Atractylodes macrocephala act as farnesoid X receptor and progesterone receptor modulators.

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Two sesquiterpenoids, atractylenolide II and III, were isolated and identified from Atractylodes macrocephala (Asteraceae) to be subsequently evaluated for their activity against farnesoid X receptor (FXR) and progesterone receptor (PR) by transient transfection reporter assays. These

Screening for compounds with aromatase inhibiting activities from Atractylodes macrocephala Koidz.

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Ten compounds were isolated from the dichloromethane extract of Atractylodes macrocephala and their aromatase inhibiting activities were tested using an in vitro fluorescent-based aromatase assay. The results indicated that atractylenolide I, atractylenolide II and atractylenolide III had inhibition

GABA(A) receptor modulators from Chinese herbal medicines traditionally applied against insomnia and anxiety.

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Several Chinese herbal medicines (CHMs) are used in the treatment of insomnia, restlessness, or anxiety. However, mechanisms underlying this effect and scientific proof for their traditional use is scarce. In the present study CHMs were screened for their ability to modulate GABA-induced chloride

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