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coptis/l tyrosine
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11 résultats
Protein tyrosine phosphatase 1B inhibitory activity of alkaloids from Rhizoma Coptidis and their molecular docking studies.
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Rhizoma Coptidis (the rhizome of Coptis chinensis Franch) has commonly been used for treatment of diabetes mellitus in traditional Chinese medicine due to its blood sugar-lowering properties and therapeutic benefits which highly related to the alkaloids therein. However, a limited number
Tyrosine phosphorylation and protein degradation control the transcriptional activity of WRKY involved in benzylisoquinoline alkaloid biosynthesis.
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Benzylisoquinoline alkaloids (BIQ) are among the most structurally diverse and pharmaceutically valuable secondary metabolites. A plant-specific WRKY-type transcription factor, CjWRKY1, was isolated from Coptis japonica and identified as a transcriptional activator of BIQ biosynthesis. However, the
Neuroprotective Effect of Coptis chinensis in MPP[Formula: see text] and MPTP-Induced Parkinson's Disease Models.
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The rhizome of Coptis chinensis is commonly used in traditional Chinese medicine alone or in combination with other herbs to treat diseases characterized by causing oxidative stress including inflammatory diseases, diabetes mellitus and neurodegenerative diseases. In particular, there is emerging
The Norcoclaurine Pathway is Operative in Berberine Biosynthesis in Coptis japonica.
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The commercially used cell suspension culture of COPTIS JAPONICA Makino (Ranunculaceae) incorporates [beta- (13)C]tyrosine into both halves of the berberine molecule (isoquinoline and benzyl portion) while L-[3'- (18)O]DOPA only labels the isoquinoline portion of this molecule. This labelling
Inhibitory effects of protoberberine alkaloids from the roots of Coptis japonica on catecholamine biosynthesis in PC12 cells.
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The effects of protoberberine alkaloids from Coptis japonica Makino (COPT) on catecholamine content and tyrosine hydroxylase (TH) activity in PC12 cells were investigated. The butanol (BuOH) fraction from COPT at a concentration of 40 micrograms/ml medium inhibited catecholamine biosynthesis. The
Developmental and inducible accumulation of gene transcripts involved in alkaloid biosynthesis in opium poppy.
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Opium poppy (Papaver somniferum) produces a large number of benzylisoquinoline alkaloids, including morphine and sanguinarine, derived from tyrosine via the branch-point intermediate (S)-reticuline. Molecular clones for the three methlytransferases involved in (S)-reticuline biosynthesis,
Transcriptome analyses provide insights into the difference of alkaloids biosynthesis in the Chinese goldthread (Coptis chinensis Franch.) from different biotopes.
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Coptis chinensis Franch., the Chinese goldthread ('Weilian' in Chinese), one of the most important medicinal plants from the family Ranunculaceae, and its rhizome has been widely used in Traditional Chinese Medicine for centuries. Here, we analyzed the chemical components and the transcriptome of
Full-length transcriptome analysis of Coptis deltoidea and identification of putative genes involved in benzylisoquinoline alkaloids biosynthesis based on combined sequencing platforms.
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The study carry out comprehensive transcriptome analysis of C. deltoidea and exploration of BIAs biosynthesis and accumulation based on UHPLC-MS/MS and combined sequencing platforms. Coptis deltoidea is an important medicinal plant with a long history of medicinal use, which is rich in
Cancer cell‑specific anticancer effects of Coptis chinensis on gefitinib‑resistant lung cancer cells are mediated through the suppression of Mcl‑1 and Bcl‑2.
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The epidermal growth factor receptor (EGFR)‑tyrosine kinase inhibitor (TKI), gefitinib, is an effective therapeutic drug used in the treatment of non‑small cell lung cancers (NSCLCs) harboring EGFR mutations. However, acquired resistance significantly limits the efficacy of EGFR‑TKIs and
Berberine alleviates type 2 diabetic symptoms by altering gut microbiota and reducing aromatic amino acids
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Objective: Berberine (BBR), which is extracted from traditional Chinese herb, is abundant in Coptis chinensis and Berberis vulgaris, with a treatment on type 2 diabetes mellitus (T2DM). However, its oral bioavailability is poor.
Jiaotai Pill enhances insulin signaling through phosphatidylinositol 3-kinase pathway in skeletal muscle of diabetic rats.
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OBJECTIVE
To investigate the effect of Jiaotai Pill (, JTP) at different constitutional proportions on insulin signaling through phosphatidylinositol 3-kinase (PI3K) pathway in the skeletal muscle of diabetic rats.
METHODS
The rat model of type 2 diabetes mellitus (T2DM) was established by
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