| PubMed:Simultaneous determination of the content of isoquinoline alkaloids in Dicranostigma leptopodum (Maxim) Fedde and the effective fractionation of the alkaloids by high-performance liquid chromatography with diode array detection. | 
| PubMed:Direct analysis of quaternary alkaloids by in situ reactive desorption corona beam ionization MS. | 
| PubMed:Influence of vinegar and wine processing on the alkaloid content and composition of the traditional Chinese medicine Corydalis Rhizoma (Yanhusuo). | 
| PubMed:Antidiabetic effects of the Cimicifuga racemosa extract Ze 450 in vitro and in vivo in ob/ob mice. | 
| PubMed:Natural products as potential human ether-a-go-go-related gene channel inhibitors - screening of plant-derived alkaloids. | 
| PubMed:Cytotoxicity of Aporphine, Protoberberine, and Protopine Alkaloids from Dicranostigma leptopodum (Maxim.) Fedde. | 
| PubMed:Simultaneous determination of paeoniflorin, albiflorin, ferulic acid, tetrahydropalmatine, protopine, typhaneoside, senkyunolide I in Beagle dogs plasma by UPLC-MS/MS and its application to a pharmacokinetic study after Oral Administration of Shaofu Zhuyu Decoction. | 
| PubMed:Comparisons of pharmacokinetic and tissue distribution profile of four major bioactive components after oral administration of Xiang-Fu-Si-Wu Decoction effective fraction in normal and dysmenorrheal symptom rats. | 
| PubMed:[Network pharmacology study on major active compounds of siwu decoction analogous formulae for treating primary dysmenorrhea of gynecology blood stasis syndrome]. | 
| PubMed:Improved sanguinarine production via biotic and abiotic elicitations and precursor feeding in cell suspensions of latex-less variety of Papaver somniferum with their gene expression studies and upscaling in bioreactor. | 
| PubMed:Facile synthesis of tetrahydroprotoberberine and protoberberine alkaloids from protopines and study on their antibacterial activities. | 
| PubMed:Identification and quantification of the main active anticancer alkaloids from the root of Glaucium flavum. | 
| PubMed:A HPLC-MS/MS method for the simultaneous quantitation of six alkaloids of Rhizoma Corydalis Decumbentis in rat plasma and its application to a pharmacokinetic study. | 
| PubMed:A new protoberberine alkaloid from Meconopsis simplicifolia (D. Don) Walpers with potent antimalarial activity against a multidrug resistant Plasmodium falciparum strain. | 
| PubMed:[In vitro transdermal delivery of the active fraction of xiangfusiwu decoction based on principal component analysis]. | 
| PubMed:Pharmaceutical applications of the benzylisoquinoline alkaloids from Argemone mexicana L. | 
| PubMed:Identification of the absorbed constituents after oral administration of Yuanhu Zhitong prescription extract and its pharmacokinetic study by rapid resolution liquid chromatography/quadrupole time-of-flight. | 
| PubMed:Dioxygenases catalyze O-demethylation and O,O-demethylenation with widespread roles in benzylisoquinoline alkaloid metabolism in opium poppy. | 
| PubMed:Revealing the anti-tumoral effect of Algerian Glaucium flavum roots against human cancer cells. | 
| PubMed:Comparative pharmacokinetics and bioavailability of four alkaloids in different formulations from Corydalis decumbens. | 
| PubMed:Simultaneous quantification of 11 isoquinoline alkaloids in Corydalis impatiens (Pall.) Fisch by HPLC. | 
| PubMed:A review on ethnobotany, phytochemistry and pharmacology of Fumaria indica (Fumitory). | 
| PubMed:Capillary electrophoretic study of the synergistic biological effects of alkaloids from Chelidonium majus L. in normal and cancer cells. | 
| PubMed:Integration of transcriptome, proteome and metabolism data reveals the alkaloids biosynthesis in Macleaya cordata and Macleaya microcarpa. | 
| PubMed:Isolation and characterization of a cDNA encoding (S)-cis-N-methylstylopine 14-hydroxylase from opium poppy, a key enzyme in sanguinarine biosynthesis. | 
| PubMed:A sensitive and selective liquid chromatography-tandem mass spectrometry method for simultaneous determination of five isoquinoline alkaloids from Chelidonium majus L. in rat plasma and its application to a pharmacokinetic study. | 
| PubMed:Large-scale separation of alkaloids from Corydalis bungeana Turcz. by pH-zone-refining counter-current chromatography. | 
| PubMed:Application of a liquid chromatography-tandem mass spectrometry method to the pharmacokinetics, tissue distribution and excretion studies of Dactylicapnos scandens in rats. | 
| PubMed:Identification of pavinane alkaloids in the genera Argemone and Eschscholzia by GC-MS. | 
| PubMed:Establishment of a search library about benzylisoquinoline alkaloids based on selective separation on the binaphthyl column and standard analysis on C18 column. | 
| PubMed:[Study on absorption ingredients of yuanhuzhitong pill by everted intestinal sac method]. | 
| PubMed:Genetic and chemical components analysis of Papaver setigerum naturalized in Korea. | 
| PubMed:Phytochemical and biological activity studies of the Bhutanese medicinal plant Corydalis crispa. | 
| PubMed:Antimalarial alkaloids from a Bhutanese traditional medicinal plant Corydalis dubia. | 
| PubMed:[Chemical constituents from Corydalis yanhusuo]. | 
| PubMed:Fluorescence spectral analysis for the discrimination of complex, similar mixtures with the aid of chemometrics. | 
| PubMed:Design and evaluation of self-emulsifying drug delivery systems of Rhizoma corydalis decumbentis extracts. | 
| PubMed:Molecular cloning and characterization of a cytochrome P450 in sanguinarine biosynthesis from Eschscholzia californica cells. | 
| PubMed:Protopine reduces the inflammatory activity of lipopolysaccharide-stimulated murine macrophages. | 
| PubMed:Effect of wine and vinegar processing of Rhizoma Corydalis on the tissue distribution of tetrahydropalmatine, protopine and dehydrocorydaline in rats. | 
| PubMed:Alkaloids from Papaver coreanum. | 
| PubMed:Induction of heme oxygenase-1 by Macleaya cordata extract and its constituent sanguinarine in RAW264.7 cells. | 
| PubMed:[Determination of four alkaloids in Corydalis decumbens by HPLC]. | 
| PubMed:Preparative isolation of alkaloids from Dactylicapnos scandens using pH-zone-refining counter-current chromatography by changing the length of the separation column. | 
| PubMed:Protopine, a novel microtubule-stabilizing agent, causes mitotic arrest and apoptotic cell death in human hormone-refractory prostate cancer cell lines. | 
| PubMed:Rapid discrimination and quantification of alkaloids in Corydalis Tuber by near-infrared spectroscopy. | 
| PubMed:Alkaloids from Chelidonium majus and their inhibitory effects on LPS-induced NO production in RAW264.7 cells. | 
| PubMed:CYP2C19 progress curve analysis and mechanism-based inactivation by three methylenedioxyphenyl compounds. | 
| PubMed:In vitro metabolic interactions between black cohosh (Cimicifuga racemosa) and tamoxifen via inhibition of cytochromes P450 2D6 and 3A4. | 
| PubMed:Identification of a novel bacterial K(+) channel. | 
| PubMed:Simultaneous quantification of 17 constituents from Yuanhu Zhitong tablet using rapid resolution liquid chromatography coupled with a triple quadrupole electrospray tandem mass spectrometry. | 
| PubMed:Capillary electrophoresis with LED-induced native fluorescence detection for determination of isoquinoline alkaloids and their cytotoxicity in extracts of Chelidonium majus L. | 
| PubMed:Alkaloids and flavonoids of Argemone mexicana. | 
| PubMed:[Simultaneous determination of four alkaloids in Corydalis decumbens (Thunb.) Pers. by high performance liquid chromatography-tandem mass spectrometry]. | 
| PubMed:Chemical study and anti-inflammatory, analgesic and antioxidant activities of the leaves of Aristotelia chilensis (Mol.) Stuntz, Elaeocarpaceae. | 
| PubMed:Seasonal variation of bioactive alkaloid contents in Macleaya microcarpa (Maxim.) Fedde. | 
| PubMed:Protopine and allocryptopine increase mRNA levels of cytochromes P450 1A in human hepatocytes and HepG2 cells independently of AhR. | 
| PubMed:Preparative isolation of alkaloids from Corydalis bungeana Turcz. by high-speed counter-current chromatography using stepwise elution. | 
| PubMed:Acetylcholinesterase and butyrylcholinesterase inhibitory compounds from Chelidonium majus (Papaveraceae). | 
| PubMed:[Determination of protopine in Corydalis racemose by HPLC]. | 
| PubMed:Phytochemical and antimicrobial characterization of Macleaya cordata herb. | 
| PubMed:Optimization of microwave-assisted extraction of protopine and allocryptopine from stems of Macleaya cordata (Willd) R. Br. using response surface methodology. | 
| PubMed:A study on separation and extraction of four main alkaloids in Macleaya cordata (Willd) R. Br. with strip dispersion hybrid liquid membrane. | 
| PubMed:In vivo anthelmintic activity of five alkaloids from Macleaya microcarpa (Maxim) Fedde against Dactylogyrus intermedius in Carassius auratus. | 
| PubMed:Validated liquid chromatography-tandem mass spectrometry method for quantitative determination of dauricine in human plasma and its application to pharmacokinetic study. | 
| PubMed:Acetylcholinesterase inhibitors from Corydalis yanhusuo. | 
| PubMed:BIAdb: a curated database of benzylisoquinoline alkaloids. | 
| PubMed:Simultaneous determination of seven main alkaloids of Chelidonium majus L. by ultra-performance LC with photodiode-array detection. | 
| PubMed:Extractions of isoquinoline alkaloids with butanol and octanol. | 
| PubMed:Screening of antinociceptive components in Corydalis yanhusuo W.T. Wang by comprehensive two-dimensional liquid chromatography/tandem mass spectrometry. | 
| PubMed:Electron ionisation mass spectral study of 2-(2-carboxy-4, 5-dimethoxyphenyl)-6,7-dimethoxyisoquinolinium inner salt. | 
| PubMed:Isoquinoline alkaloids from Macleaya cordata active against plant microbial pathogens. | 
| PubMed:[Alkaloids from Dactylicapnos scandens Hutch]. | 
| PubMed:[Alkaloids from Macleaya cordata]. | 
| PubMed:Alkaloids from Mongolian species Hypecoum lactiflorum Kar. et Kir. Pazij. | 
| PubMed:Antiplasmodial agents from the Bhutanese medicinal plant Corydalis calliantha. | 
| PubMed:Simultaneous determination of tetrahydropalmatine, protopine, and palmatine in rat plasma by LC-ESI-MS and its application to a pharmacokinetic study. | 
| PubMed:Analysis of alkaloids in Macleaya cordata (Willd.) R. Br. using high-performance liquid chromatography with diode array detection and electrospray ionization mass spectrometry. | 
| PubMed:Protective effects of protopine on hydrogen peroxide-induced oxidative injury of PC12 cells via Ca(2+) antagonism and antioxidant mechanisms. | 
| PubMed:Rapid TLC/GC-MS identification of acetylcholinesterase inhibitors in alkaloid extracts. | 
| PubMed:Hepatoprotective potential of Fumaria indica Pugsley whole plant extracts, fractions and an isolated alkaloid protopine. | 
| PubMed:On the synthesis of protopine alkaloids. | 
| PubMed:Protective effect of protopine on the focal cerebral ischaemic injury in rats. | 
| PubMed:Conventional sample enrichment strategies combined with high-performance liquid chromatography-solid phase extraction-nuclear magnetic resonance analysis allows analyte identification from a single minuscule Corydalis solida plant tuber. | 
| PubMed:Antiviral and antimicrobial profiles of selected isoquinoline alkaloids from Fumaria and Corydalis species. | 
| PubMed:Molecular cloning and characterization of tetrahydroprotoberberine cis-N-methyltransferase, an enzyme involved in alkaloid biosynthesis in opium poppy. | 
| PubMed:New tetrahydroprotoberberine N-oxide alkaloids and cytotoxic constituents of Corydalis tashiroi. | 
| PubMed:Rapid determination of protopine, allocryptopine, sanguinarine and chelerythrine in fruits of Macleaya cordata by microwave-assisted solvent extraction and HPLC-ESI/MS. | 
| PubMed:Poppy alkaloid profiling by electrospray tandem mass spectrometry and electrospray FT-ICR mass spectrometry after [ring-13C6]-tyramine feeding. | 
| PubMed:Gene transcript and metabolite profiling of elicitor-induced opium poppy cell cultures reveals the coordinate regulation of primary and secondary metabolism. | 
| PubMed:Effect of isoquinoline alkaloids of different structural types on antiplatelet aggregation in vitro. | 
| PubMed:Intestinal spasmolytic effects of STW 5 (Iberogast) and its components. | 
| PubMed:Large-scale separation of alkaloids from Corydalis decumbens by pH-zone-refining counter-current chromatography. | 
| PubMed:Alkaloids from Eschscholzia californica and their capacity to inhibit binding of [3H]8-Hydroxy-2-(di-N-propylamino)tetralin to 5-HT1A receptors in Vitro. | 
| PubMed:Protopine inhibits serotonin transporter and noradrenaline transporter and has the antidepressant-like effect in mice models. | 
| PubMed:Proapoptotic activity of Ukrain is based on Chelidonium majus L. alkaloids and mediated via a mitochondrial death pathway. | 
| PubMed:Identification and quantification of isoquinoline alkaloids in the genus Sarcocapnos by GC-MS. | 
| PubMed:Regulation of glutamate level in rat brain through activation of glutamate dehydrogenase by Corydalis ternata. | 
| PubMed:Theoretical and experimental NMR study of protopine hydrochloride isomers. | 
| PubMed:Effects of protopine on intracellular calcium and the PKC activity of rat aorta smooth muscle. | 
| PubMed:[Studies on the alkaloids from the herb of Corydalis adunca]. | 
| PubMed:[Determination of protopine and isocorydine in root of Dactylicapnos scandens by HPLC]. | 
| PubMed:Effect of binary combination of some plant-derived molluscicides with MGK-264 or piperonyl butoxide on the reproduction of the snail Lymnaea acuminata. | 
| PubMed:Acetylcholinesterase inhibitors from the aerial parts of Corydalis speciosa. | 
| PubMed:Inhibitory effect of protopine on K(ATP) channel subunits expressed in HEK-293 cells. | 
| PubMed:Protopine alkaloids in horse urine. | 
| PubMed:1H and 13C NMR signal assignment of benzylisoquinoline alkaloids from Fumaria officinalis L. (Papaveraceae). | 
| PubMed:How to treat tremor. | 
| PubMed:Cytochrome P450 isoenzymes involved in rat liver microsomal metabolism of californine and protopine. | 
| PubMed:Inhibition of mouse liver respiration by Chelidonium majus isoquinoline alkaloids. | 
| PubMed:Antifungal activity of the methanolic extract and alkaloids of Glaucium oxylobum. | 
| PubMed:Studies on the metabolism and toxicological detection of the Eschscholtzia californica alkaloids californine and protopine in urine using gas chromatography-mass spectrometry. | 
| PubMed:In vitro susceptibility of Helicobacter pylori to isoquinoline alkaloids from Sanguinaria canadensis and Hydrastis canadensis. | 
| PubMed:Cytotoxic activity and quality control determinations on Chelidonium majus. | 
| PubMed:Two new protopines argemexicaines A and B and the anti-HIV alkaloid 6-acetonyldihydrochelerythrine from formosan Argemone mexicana. | 
| PubMed:[RP-HPLC method for determination of protopine in plasma and pharmacokinetics in rats]. | 
| PubMed:[Concentration of four alkaloids in the aerial parts of Eomecon chionantha from different mounth in year]. | 
| PubMed:Direct determination of alkaloid contents in Fumaria species by GC-MS. | 
| PubMed:Assay of nematocidal activity of isoquinoline alkaloids using third-stage larvae of Strongyloides ratti and S. venezuelensis. | 
| PubMed:Elevational trends in defense chemistry, vegetation, and reproduction in Sanguinaria canadensis. | 
| PubMed:A new tetrahydroprotoberberine N-oxide alkaloid and anti-platelet aggregation constituents of Corydalis tashiroi. | 
| PubMed:Protopine hydrochloride. | 
| PubMed:New protopine alkaloids from Aristolochia constricta reduce morphine withdrawal in vitro. | 
| PubMed:Electrophysiological effects of protopine in cardiac myocytes: inhibition of multiple cation channel currents. | 
| PubMed:Effect of protopine on cytosolic Ca2+ in rabbit platelets. | 
| PubMed:Effect of molluscicidal components of Abrus precatorius, Argemone mexicana and Nerium indicum on certain biochemical parameters of Lymnaea acuminata. | 
| PubMed:Protopine from Corydalis ternata has anticholinesterase and antiamnesic activities. | 
| PubMed:Antispasmodic and relaxant activity of chelidonine, protopine, coptisine, and Chelidonium majus extracts on isolated guinea-pig ileum. | 
| PubMed:An assessment of the potential of protopine to inhibit microsomal drug metabolising enzymes and prevent chemical-induced hepatotoxicity in rodents. | 
| PubMed:New protopine and benzyltetrahydroprotoberberine alkaloids from Aristolochia constricta and their activity on isolated guinea-pig ileum. | 
| PubMed:Isoquinoline alkaloids from Argemone mexicana reduce morphine withdrawal in guinea pig isolated ileum. | 
| PubMed:Anti-thrombotic and anti-inflammatory activities of protopine. | 
| PubMed:[Protective action of corynoline, acetylcorynoline and protopine against experimental liver injury in mice]. | 
| PubMed:Chelidonium majus L.: components with in vitro affinity for the GABAA receptor. Positive cooperation of alkaloids. | 
| PubMed:[Effect of protopine on rabbit platelet function]. | 
| PubMed:Opioid, calcium, and adrenergic receptor involvement in protopine analgesia. | 
| PubMed:[HPTLC separation and fluorodensitometric determination of isoquinoline alkaloids in Chelidonine majus L]. | 
| PubMed:Ca(2+)-channel blockade in rat thoracic aorta by protopine isolated from Corydalis tubers. | 
| PubMed:Antihaemostatic and antithrombotic effect of some antiplatelet agents isolated from Chinese herbs. | 
| PubMed:Chemical Study on the Alkaloids of Corydalis hsuchowensis. | 
| PubMed:Effects of protopine on blood platelet aggregation. III. Effect of protopine on the metabolic system of arachidonic acid in platelets. | 
| PubMed:[Isoquinoline alkaloids from Corydalis thyrsiflora prain]. | 
| PubMed:Characterization of Sanguinaria canadensis L. fluid extract by FAB mass spectrometry. | 
| PubMed:[Relaxant effects of protopine on smooth muscles]. | 
| PubMed:Stepwise gradient in thin-layer chromatography of Chelidonium alkaloids. | 
| PubMed:Effects of protopine on blood platelet aggregation. II. Effect on metabolic system of adenosine 3',5'-cyclic monophosphate in platelets. | 
| PubMed:New hydroxylated benzo[c]phenanthridine alkaloids from Eschscholtzia californica cell suspension cultures. | 
| PubMed:Antiplatelet effects of protopine isolated from Corydalis tubers. | 
| PubMed:Cytotoxicity of isoquinoline alkaloids and their N-oxides. | 
| PubMed:Effects of protopine on blood platelet aggregation; 1. | 
| PubMed:In vitro study of the anticholinergic and antihistaminic activities of protopine and some derivatives. | 
| PubMed:Chemical Study of Alkaloids from Corydalis bungeana. | 
| PubMed:[Effects of alkaloids of Corydalis decumbens on cerebral and peripheral circulation in the dog]. | 
| PubMed:Enhancement of gamma-aminobutyric acid receptor binding by protopine-type alkaloids. | 
| PubMed:Comparison of chemical and botanical studies of Turkish papaver belonging to the section pilosa. | 
| PubMed:[Chemical study on a traditional Tibetan drug Hypecoum leptocarpum]. | 
| PubMed:Separation and Quantification of Some Alkaloids from Fumaria parviflora by Capillary Isotachophoresis1. | 
| PubMed:[TLC separation and densitometric determination of six isoquinoline alkaloids in Corydalis bungeana]. | 
| PubMed:Isoquinoline alkaloids from cell suspension cultures of Fumaria capreolata. | 
| PubMed:Alkaloids of Fumaria indica: Further Studies on Narceimine and Narlumidine. | 
| PubMed:Beta-phenylethylamines and the isoquinoline alkaloids. | 
| PubMed:Alkaloids of Fumaria densiflora*. | 
| PubMed:The alkaloids of Corydalis meifolia. | 
| PubMed:The alkaloids of Corydalis meifolia. | 
| PubMed:Somatic embryogenesis of tissue cultures of Papaver somniferum and Papaver orientale and its relationship to alkaloid and lipid metabolism. | 
| PubMed:Alkaloids of Turkish Glaucium species. | 
| PubMed:Alkaloids from Fumaria parviflora and F. kralikii. | 
| PubMed:Alkaloids of Corydalis slivenensis. | 
| PubMed:Alkaloids from Corydalis bulbosa. | 
| PubMed:[The antibacterial effects of some alkaloids isolated from Glaucium flavum Crantz]. | 
| PubMed:Alkaloids from Corydalis marschalliana. | 
| PubMed:[Analgesic and antispastic effects of protopine (author's transl)]. | 
| PubMed:Alkaloids from Papaver armeniacum, P. fugax and P. tauricola. | 
| PubMed:Variability of alkaloid spectrum in early stages of development of Glaucium flavum Crantz. | 
| PubMed:High pressure liquid chromatographic determination of the five major alkaloids in Papaver somniferum L. and thebaine in Papaver bracteatum Lindl. capsular tissue. | 
| PubMed:[Prevention of ventricular fibrillation with the aid of protopine in animal experiments]. | 
| PubMed:Alkaloids of papaver genus IX. Alkaloids of Glaucium vitellinum Boiss and Buhse, population Seerjan and Glaucium pulchrum Stapf, population Elika. | 
| PubMed:Alkaloids of Glaucium flavum Grantz, populations Isfahan and Kazerun. | 
| PubMed:Alkaloids of Glaucium oxylobum Boiss and Buhse, Population Ab-Ali. | 
| PubMed:[Transformation of indole alkaloids. III. The partial synthesis of protopine type indole alkaloid "burnamicine" (author's transl)]. | 
| PubMed:Isolation and chemistry of alkaloids from plants of the family Papaveraceae LXVII: Corydalis cava (L.) Sch. et K. (C. tuberosa DC). | 
| PubMed:Antimicrobial agents from higher plants. Additional alkaloids and antimicrobial agents from Thalictrum rugosum. | 
| PubMed:[Extractive photometric determination of protopine]. | 
| PubMed:The structures of coulteropine and other protopine-type alkaloid acid salts. | 
| PubMed:The nuclear resonance spectrum of protopine: rate of racemization and ring inversion. | 
| PubMed:Alkaloids of the Papaveraceae. VI. Protopine and allocryptopine from Arctomecon alifornica. | 
| PubMed:Phenol oxidation and biosynthesis. 8. Investigations on the biosynthesis of berberine and protopine. | 
| PubMed:THE ANTITUMOR FACTORS PRESENT IN CHELIDONIUM MAJUS L. I. CHELIDONINE AND PROTOPINE. | 
| PubMed:[Partition of chelidonine and protopine by means of countercurrent cascade extraction]. | 
| PubMed:Separation and determination of the dissociation constants of chelidonine and protopine by paper chromatography. | 
| PubMed:Origin of the methylenedioxy groups of the alkaloid protopine. |