43 results about "Chelirubine" patented technology

The present invention is new total plumepoppy alkaloid salt and its preparation and application. The total plumepoppy alkaloid salts of organic acid and boric acid have the content of 50-90 % accounting in the organic acid salt and boric acid salt of sanguinarine and chelirubine. The total plumepoppy alkaloid salts of organic acid and boric acid have the antibacterial and antiphlogistic activity superior to that of total plumepoppy alkaloid sulfate and hydrochloride. The present invention also relates to the antibacterial and antiphlogistic application of medicines and daily use articles containing total plumepoppy alkaloid salts of organic acid and boric acid for human and animal.

The invention discloses flavoprotein oxidase genes of macleaya cordata in synthesis of sanguinarine and chelerythrine and application of the flavoprotein oxidase genes. Three flavoprotein oxidase genes joining in synthesis of sanguinarine and chelerythrine are found in a macleaya cordata genome for the first time, including genes Mc20113, Mc6407 and Mc6408. Steps of reaction are respectively verified by using a brewer's yeast system through upstream precursor feeding, and synthesis of sanguinarine and chelerythrine and midbodies can be achieved. The conversion efficiency of same functional genes of macleaya cordata and opium poppy is further compared by using a brewer's yeast heterologous expression system, and the result shows that the conversion rate of the gene of macleaya cordata is remarkably higher than that of opium poppy. The invention further discloses a molecular mechanism of synthesis of sanguinarine in macleaya cordata, and a theoretic basis and molecular assistant breeding targets are provided for breeding of macleaya cordata with high contents of sanguinarine and chelerythrine; and meanwhile, precious experience is provided for in-vitro artificial synthesis of sanguinarine and chelerythrine.

The invention relates to a sanguinarine alcoholate and a chelerythrine alcoholate and a preparation method and application thereof in acaricidal drugs for animals. Livestock and poultry acariasis is an in vitro parasitic disease which can cause serious damage to the animal health, and serious stress response of animals to influence ingestion, feed efficiency and weight gain, even cause death. At present, the control of the animal acariasis mainly relies on drugs for killing ticks and mites, and the ticks and mites can produce resistance to the drugs after the drugs are used for a long time, so that the drugs can cause adverse environmental and ecological effects, and can only drive and kill polypides instead of ova. The sanguinarine alcoholate and the chelerythrine alcoholate are derived from natural compounds-sanguinarine and chelerythrine alcoholate, and exist in the form of free alkaloids in the acaricidal drugs for animals. The sanguinarine alcoholate and the chelerythrine alcoholate have the characteristics of low toxicity, low residue and not easy production of resistance to the drugs of natural drugs, and have remarkable acaricidal activity and good treatment effect on the acariasis of animals when the sanguinarine alcoholate and the chelerythrine alcoholate are applied as the acaricidal drugs for animals.

The invention discloses a method for preparing a chelerythrine medicament and application thereof in prevention and treatment of bacterial diseases of aquatic animals. The medicament consists of chelerythrine and starch serving as an auxiliary material. The method for preparing the prevention and treatment agent comprises the following steps of: weighing chelerythrine extract (the purity is 80 percent) and starch serving as the auxiliary material, adding the chelerythrine extract and the starch into a mixer, and mixing the chelerythrine extract and the starch uniformly to obtain a preparation containing 5 to 20 percent chelerythrine. When the bacterial disease prevention and treatment agent is added into feed for feeding, the dosage is 200 to 250 mg/kg (according to the quantity of the chelerythrine for each kilogram of weight); the prevention and treatment agent added in the feed has low toxicity, does not affect the quality of aquatic products, has no residue or pollution, is not easy to generate medicament resistance, does not affect the feed and growth of the aquatic animals, has low dosage, and is widely applied in prevention and treatment of bacterial hemorrhage diseases of mandarin fish, weever, carp, grass carp, eel, porgy, flounder and the like.

The cancer treating medicine is prepared with bocconia cordata total alkali as material and through adding medicinal supplementary material and conventional preparation process. The bocconia cordata total alkali contains chelirubine hydrochloride over 25 wt% and sanguinarine hydrochloride over 30 wt%. The preparation process of bocconia cordata total alkali comprising three steps of ethanol extraction, acid and alkali treatment to eliminate impurity and ethanol re-crystallization to purify is also disclosed. The medicine of the present invention has high effective component content, determined treating effect, fast effect, few toxic side effect and other advantages.

A forage additive for promoting the appetite and growth of domestic animals and fowls is proportionally prepared from sanguinarine, chelirubine, polystic glucopeptide, sodium glutamate, and carrier chosen from corn protein powder and stone powder.

The invention discloses application of chelerythrine in inhibition and clearing of a multi-drug-resistant Providencia rettgeri biofilm. According to the application, the technical problem that the drug resistance of a drug-resistant Providencia rettgeri biofilm is difficult to clear once formed is solved. The chelerythrine is capable of inhibiting formation of the Providencia rettgeri biofilm, andthe minimum inhibition concentration is 15.6 micrograms per milliliter. Besides, the chelerythrine is capable of clearing a mature Providencia rettgeri biofilm, and the minimum clearing concentrationis 250 micrograms per milliliter. By virtue of the effect of a rooted whole grass extract, namely the chelerythrine of a papaveraceous plant celandine, on the multi-drug-resistant Providencia rettgeri biofilm, the infection caused by the Providencia rettgeri biofilm can be effectively relieved or solved, the healing rate is increased, new thoughts are provided for the inhibition of the Providencia rettgeri biofilm and the clearing of the mature biofilm, and the application has important practical significances.

The invention discloses a 5-imino substituted derivative with insecticidal and antibacterial effects, and the 5-imino substituted derivative is a polysubstituted 1H-1,2,4-triazole amidine compound. The application reports the application of the 5-imino-substituted dihydrosanguinarine or chelerythrine derivative in the field of agricultural chemicals for the first time, the obtained 5-imino substituted dihydrosanguinarine or chelerythrine derivative has the characteristics of high activity, convenient synthesis method and the like, and the derivative also has good insecticidal activity and antibacterial activity. The structure of a macleaya cordata sanguinarine analogue and the application of the macleaya cordata sanguinarine analogue in the field of agricultural chemicals are enriched.

The invention discloses a chelerythrine suspending agent and a preparation method and application thereof, and belongs to the technical field of biological pesticides for vegetables. In order to find an environment-friendly, low-toxicity and high-efficiency prevention and treatment method for the rice flax spot disease, a suspending agent with the characteristics of fine particle size, high suspension rate, no dust and the like is obtained by compounding chelerythrine raw medicine, 4% of a dispersing agent Atlox4913, 2% of a wetting agent Genapol X080, 5% of glycerol, 0.5% of magnesium aluminum silicate, 0.1% of xanthan gum, 0.2% of Sag1522 and deionized water through mixing, shearing and grinding. The suspending agent is applied to prevention and treatment of the rice flaxseed spot, shows a good prevention and treatment effect, has the advantages of high efficiency, low toxicity, no pollution, easiness in degradation and no environmental pollution, and meets the requirements of green food development and agricultural sustainable development nowadays.

The invention provides an optimized sequence of a macleaya cordata dihydrobenzophenanthridine oxidase gene and application thereof. The invention comprises codon optimization on a dihydrobenzophenanthridine oxidase gene MC6408 to obtain an optimized sequence MC6408opt, a recombinant expression vector of the optimized sequence MC6408opt, yeast engineering bacteria containing the recombinant expression vector of the optimized sequence MC6408opt, and application of the optimized sequence MC6408opt, recombinant expression vector and yeast engineering bacteria in the preparation of pseudochelerythrine. The functional gene MC6408 of macleaya cordata participating in synthesis of pseudochelerythrine and chelerythrine is subjected to codon optimization according to a yeast preferred codon to obtain the optimized sequence; and the optimized sequence is integrated into saccharomyces cerevisiae for heterologous expression, so that microbial transformation of the pseudochelerythrine and chelerythrine is realized. Compared with an unoptimized functional gene, the optimized gene can greatly improve the enzymatic efficiency of the dihydrobenzophenanthridine oxidase, increase the content of the catalytic product pseudochelerythrine, and reduce the production cost of the pseudochelerythrine.

The invention discloses application of chelerythrine to preparation of a medicine for inhibiting blastomyces albicans and staphylococcus aureus bi-species biofilm. By adopting a blastomyces albicans and staphylococcus aureus bi-species biofilm in vitro model, an in vitro intervention effect of the chelerythrine on the bi-species biofilm is researched; through observation of a crystal violet method, the phenomenon that the chelerythrine can effectively intervene formation of the blastomyces albicans and staphylococcus aureus biofilm is found; and through observation of field emission scanning electron microscope, the phenomenon that the chelerythrine has obvious inhibition and clearing effects on the blastomyces albicans and staphylococcus aureus in the biofilm is found; and therefore, thechelerythrine has definite effects on inhibition of the blastomyces albicans and staphylococcus aureus bi-species biofilm, and can be applied to preparing the medicine for inhibiting or clearing the blastomyces albicans and staphylococcus aureus bi-species biofilm; and therefore, the application of the chelerythrine has an effective meaning.

The invention belongs to the technical field of novel pesticides, and particularly relates to sanguinarine derivatives, chelerythrine derivatives and application thereof. According to the invention, anitrogen heterocyclic structure is introduced into natural macleaya cordata sanguinarine molecules and macleaya cordata chelerythrine molecules to synthesize a class of novel-structure substituted macleaya cordata sanguinarine derivatives and chelerythrine derivatives containing the nitrogen heterocyclic structure. Compared with sanguinarine and chelerythrine, the sanguinarine derivative and thechelerythrine derivative synthesized by the method disclosed by the invention have stronger biological activity; the sanguinarine derivatives have strong insecticidal activity on the green peach aphids, the corrected death rate of most sanguinarine derivatives is over 85%, the LC50 of part of sanguinarine derivatives is below 10g/mL, and the sanguinarine derivatives still have excellent insecticidal activity on the green peach aphids.

The invention discloses a quality control method of Bopu total alkali, which adopts a liquid chromatograph, and uses a method of reference substance accompanying control or combination of reference substance accompanying control and relative retention time to qualitatively identify that the Bopu total alkali contains four substances, i.e., protopine, allocryptopine, sanguinarine and chelerythrine. According to the method, the chromatographic characteristic peaks of the liquid chromatogram of a sample are identified through utilizing the characteristic chromatogram of a liquid phase by utilizing reference substance accompanying control and relative retention time of a reference peak, and the result identifies all four characteristic peaks of the Bopu total alkali which are basically free of other impurity peaks. By adopting thequality control method, other medicinal parts can be effectively prevented from being fed, and other chemical medicines can be effectively prevented from being added into the raw material medicine, so that the product quality is controlled.

The invention relates to a chelerythrine mPEG-PLGA nanogel composite preparation as well as a preparation method, a detection method and application thereof, chelerythrine nanoparticles taking mPEG-PLGA as a carrier are successfully prepared by adopting a nanoprecipitation method, the chelerythrine nanoparticles are prepared into the temperature-sensitive nanogel composite preparation, and the targeting effect of chelerythrine on tumors is improved. The solid tumor inhibitor has relatively high encapsulation efficiency, drug loading capacity, biological safety and slow release effect, can effectively inhibit the growth of solid tumors and the tumor inhibition action mechanism thereof, provides a theoretical basis for further clinical application, and has application prospects in the aspect of treatment of melanoma; and a basis and a reference can be provided for constructing a safe, stable and intelligent hydrophobic anti-cancer drug carrier.

The invention discloses the application of chelerythrine in inhibiting the growth of multi-drug-resistant serratia marcescens. The chelerythrine has a relatively good in-vitro killing effect on the multi-drug-resistant serratia marcescens, can inhibit the growth of the multi-drug resistance serratia marcescens, and has the minimum bactericidal concentration of 30-250 [mu]g/mL and the minimal inhibitory concentration of 15-125 [mu] g/mL. The invention provides the inhibition effect of the chelerythrine on the multi-drug resistance serratia marcescens, and has good application values in the fields of medicine and the like.

The invention discloses application of combination of chelerythrine and polymyxin E in inhibition of polymyxin E drug-resistant bacteria. The polymyxin E drug-resistant bacteria are mcr positive bacteria. Experiments prove that chelerythrine can cooperate with polymyxin E to inhibit (such as mcr-1 positive escherichia coli ZJ807, mcr-8 positive klebsiella pneumoniae KP91 and mcr-9 positive salmonella SLM183), and the drug resistance to the polymyxin E is reversed while the use amount of the polymyxin E is reduced. The chelerythrine can recover the inhibition effect of the polymyxin E on the drug-resistant bacteria of the polymyxin E. The method has an important application value.