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35results about How to "Reduce drug use" patented technology

Method for extracting effective compositions from composition of fructus ligustri lucidi and radix astragali through supercritical extraction process and products thereof

The invention discloses a method for extracting effective compositions from a composition of fructus ligustri lucidi and radix astragali through a supercritical extraction process and products thereof. The method comprises: crushing radix astragali and fructus ligustri lucidi and performing low-temperature drying, performing first extraction on radix astragali and fructus ligustri lucidi respectively or on a mixture of radix astragali and fructus ligustri lucidi by using supercritical carbon dioxide as an extracting agent, performing reduced-pressure evaporation and vacuum drying on the extracting liquid, so as to obtain a polyose-composition extracting product; performing secondary supercritical extraction on the first extraction residue, so as to obtain a flavonoid-composition extracting product; performing third supercritical extraction on the second extraction residue, so as to obtain a saponin-composition extracting product; and performing forth supercritical extraction on the thrid extraction residue, so as to obtain a terpene-composition extracting product The extraction method is capable of improving the extraction rate and the purity of the effective compositions in the composition of fructus ligustri lucidi and radix astragali, thereby reducing the dose of an astragalus membranaceus-ligustrum healthy-qi-reinforcing preparation and enabling the astragalus membranaceus-ligustrum healthy-qi-reinforcing preparation to have relatively good treatment effect.
Owner:GUIZHOU XINBANG PHARMACEUTICAL CO LTD

High-efficiency scanning spraying method of whole plants of Allium fistulosum

The invention discloses a high-efficiency scanning and spraying method of whole plants of Allium fistulosum. The scanning spraying method is achieved through combination of a conventional power sprayer with a medicine switch, a spray main switch, a split-flow tee, double handles, double spray rods, double spray heads and other special spraying components, the spraying positions of the left-and-right two sets of spray heads can be changed, and the directions of nozzle holes of the spray heads can also be changed through rotation; and during spraying operation, the relative positions of the left-and-right two sets of spray heads are kept static, and are consistent with the advance direction of an operator, the advance trajectory of the spray heads is a straight line during the scanning spraying operation, and the static scanning spraying width is larger than the width of crop targets, so that efficient and precise scanning spraying is performed on three different agronomic-trait crops which include Allium fistulosum crops, tiled-type crops and low-cluster-type canopy plants. When the method is compared with commonly-used knapsack manual sprayers or knapsack electric sprayers, the work efficiency can be increased by 3 times or above, water can be saved by 60%, chemicals can be saved by 65%, and the control effect of pests and diseases can be improved by 8-33%; and moreover, the novel scanning spraying mode for the three types of crops which include Allium fistulosum is developed, and the level of the spraying technology and spraying devices of the three types of crops can be improved.
Owner:福州市农业科学研究所 +1

Drug balloon catheter and surface treatment method of drug balloon

The invention discloses a medicine balloon catheter and a surface treatment method of a medicine balloon. The medicine balloon catheter comprises a catheter base, a catheter body, a balloon body, a pressure opening, a medicine coating and a protective coating. Comprising the following steps: S1, firstly preparing microspheres, weighing a certain amount of a carrier and a medicine, and dissolving in a solvent a to obtain a solution A; s2, preparing PVA or cellulose or a mixture aqueous solution thereof with the concentration of 2%-15% to obtain a solution B; the balloon has the advantages that the saturation degree and the conveying area of the drug coating on the balloon are effectively improved, the drug can be coated on the blood vessel wall through single expansion, the operation difficulty is effectively reduced, the operation time is shortened, meanwhile, the bioavailability is higher, the lasting tissue drug treatment concentration can be kept, and the application prospect is wide. And moreover, the loss of the medicine coating in the conveying process can be effectively prevented, and finally the purposes of improving the medicine utilization rate, reducing the medicine dosage and reducing the side effect of the medicine on the human body as much as possible are achieved.
Owner:珠海市立通生物科技有限公司

Component-compatible traditional Chinese medicine for preventing and treating Alzheimer disease

The invention discloses a component-compatible traditional Chinese medicine for preventing and treating an Alzheimer disease. Raw material for extracts of traditional Chinese medicine effective components contains the following ingredients: ginseng or total saponins of panax ginseng; coptis chinensis or total alkaloids from coptis chinensis; and ligusticum wallichii or ligusticum wallichii alcoholextract. Compared with the original traditional Chinese medicine formula (Prepared polygonum multiflorum, ginseng, acorus gramineus, coptis chinensis and ligusticum wallichii), indexes of new compatibility of traditional Chinese medicine components in an animal behavior aspect and pathology change are better than those of compatibility of the original formula, and the new compatibility of the traditional Chinese medicine components has the same effects with the original formula in the aspect of controlling inflammation level; meanwhile, toxic effect and dosage of the original formula are reduced, the effective ingredients including ginsenoside, berberine and ligustrazine of the component-compatible traditional Chinese medicine are also clear and can achieve pharmacological effects by virtue of a blood brain barrier, the traditional Chinese medicine component compatibility accords with traditional Chinese medicine theory, the material basis for efficacy is clear, and characteristics ofthe modern traditional Chinese medicinal preparation are reflected, and therefore, the component-compatible traditional Chinese medicine disclosed by the invention is an ideal medicine for preventingand treating the Alzheimer disease.
Owner:XIYUAN HOSPITAL OF CHINA ACAD OF CHINESE MEDICAL SCI

Dry powder inhalant with lung cancer-resistant activity

The invention discloses a dry powder inhalant with lung cancer-resistant activity. The dry powder inhalant with the lung cancer-resistant activity comprises yuanhuacine and a lactose carrier, wherein the lactose carrier is prepared from rough lactose with the diameter being more than 110 microns and fine lactose with the diameter being 4 to 11 microns. According to the dry powder inhalant with the lung cancer-resistant activity, the yuanhuacine and the inhalable lactose are innovatively mixed to prepare the dry powder inhalant for treating lung cancer, the medicine is directly given to a target part locally and accurately, the concentration of the medicine at the target point is increased, the toxic and side effects of other tissues are reduced and the curative effect is improved. An optimal prescription process is screened out by using a new-generation medicinal impactor to simulate a pulmonary administration method, so that more medicines are settled in the lung, an in-situ administration effect is achieved, and the lung tissue targeting aim is fulfilled. The dry powder inhalant with the lung cancer-resistant activity can obviously increase the concentration of the medicines in the lung tissue, improve the curative effect of treating the lung cancer, reduce the distribution of the medicines in the heart, liver, spleen, kidney, brain and reproductive system and reduce the toxicity on other tissues.
Owner:NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE

Medicine composition for treating chronic nephritis and preparation method thereof

The invention provides a medicine composition for treating chronic nephritis. The medicine composition is a pellet prepared from the following raw materials and accessory in parts by weight: Chinese medicine herb raw materials: 4,166 parts of lespedeza virgata, 750 parts of radix scutellariae, 1,000 parts of folium pyrrosiae and 1,000 parts of radix astragali; and accessory: 39-98 parts of filler, wherein the filler is one of starch, soluble starch and dextrin or the mixture of more than two thereof. The invention also provides a preparation method of the medicine composition. In the invention, according to the physicochemical characteristics of the raw material extract of 'Shenyansiwei tablets', the raw materials are prepared into pellets and then encapsulated, thus relatively large drug loading capacity is ensured, and the problem that the medicine can not be prepared into hard capsules on the premise of reducing the dose of the patent medicine of the original dosage form is solved; and meanwhile, in the preparation process of pellets, by observing the pill forming method, the type of adhesive and wetting agent and the drying method, the dosage of the accessory and the drying time are further reduced, the production cost is effectively saved, and industrial production is possible.
Owner:韩兵

Green Chinese onion multi-line scanning and spraying component

The invention discloses a green Chinese onion multi-line scanning and spraying component. A power sprayer is matched with a special spraying component, scanning and spraying are implemented by multi-group stereoscopic clamp spraying of the left side and the right side of a green Chinese onion line, the positions of two groups (or more than two groups) of spray nozzles are kept still during spraying operation and consistent with the advancing direction of an operator, and the advancing track of the spray nozzles for scanning and spraying operation is overlapped with the center line of the straight or curved green Chinese onion line. Spray rods can adopt thickened and lengthened structures, the number of vertical rods, vertical rod tees, left spray nozzles and right spray nozzles can be matched with that of green Chinese onion lines needing simultaneous scanning, the total length of the spray rods reaches 20-30 meters, and the spray rods are fixed to the back of a suspended drag sprayingmachine in a suspended manner. According to the scanning and spraying component, water and pesticides are saved, pesticide droplet spraying uniformity and target hitting rate are improved, environmental pollution and waste caused by the pesticides are reduced, and the component can be applied to hilly farmlands in southern hilly regions and can also be applied to northern flat plain farmlands.
Owner:福州枫蕊生态科技有限公司

Mixed culture method for fishes and macrobrachium nipponense

The invention provides a mixed culture method for fishes and macrobrachium nipponense. The method comprises the following steps: firstly disinfecting a macrobrachium nipponense pond, cultivating macrobrachium nipponense larvae through mating of male and female macrobrachium nipponense, throwing the macrobrachium nipponense larvae from the middle ten days of the July to the middle ten days of the August, throwing fry from the September to the October, and performing feeding and culture. According to the invention, the method takes full advantage of idle production resources, does not need to increase professional equipment, has no culture pollution, employs industrialized management personnel and normative culture technical standards, applies a biological agent to control water quality, reduces the use amount of drugs, makes the macrobrachium nipponense meet pollution-free and healthy requirements, and improves product quality value. In addition, the high-quality macrobrachium nipponense larvae obtained after hybridization can exert heterosis, and has obvious improvement in aspects such as improvement of a growth speed and disease and stress resistant ability and delaying of sexualmaturity than macrobrachium nipponense larvae obtained by cultivation of traditional local macrobrachium nipponense parents.
Owner:柯桂林

Botrychium ternatum micro-powder decoction pieces, Botrychium ternatum composition and preparation method of Botrychium ternatum composition

InactiveCN106619749AImprove the dissolution rate of total flavonoidsGood antipyretic effectPowder deliveryAntipyreticAlcoholBioavailability
The invention provides Botrychium ternatum micro-powder decoction pieces. The Botrychium ternatum micro-powder decoction pieces comprise Botrychium ternatum root micro-powder with the particle size being 65-170 meshes. The invention further provides a Botrychium ternatum composition. The Botrychium ternatum composition comprises the Botrychium ternatum root micro-powder with the particle size being 65-170 meshes and Botrychium ternatum stem and leaf extract, wherein the Botrychium ternatum stem and leaf extract is the water extract of Botrychium ternatum stems and leaves or the alcohol extract of the Botrychium ternatum stems and leaves. The Botrychium ternatum micro-powder decoction pieces and the Botrychium ternatum composition have the advantages that the dissolution rate of the effective component total flavonoids in the Botrychium ternatum micro-powder decoction pieces and the Botrychium ternatum composition is evidently increased as compared with that traditional decoction pieces, the problem that the main components especially flavonoid substances in Botrychium ternatum are hard to transfer is solved, and the bioavailability of the decoction pieces is increased; experiments show that the cough relieving, asthma relieving and fever abating effects of the Botrychium ternatum micro-powder decoction pieces and the Botrychium ternatum composition are evidently increased as compared with those of traditional Botrychium ternatum decoction pieces, and medicine taking quantity of patients is reduced.
Owner:黄萍

Method for effectively extracting genomic DNA (deoxyribonucleic acid) of melaleuca alternifolia

The invention provides a method for effectively extracting genomic DNA (deoxyribonucleic acid) of melaleuca alternifolia, which comprises the following steps: (1) grinding a sample into powder by liquid nitrogen, transferring the powder to a centrifuge tube, adding a DNA extraction buffer which is conventionally preheated, uniformly mixing and carrying out water bath at 65 DEG C for 30 minutes; (2) taking out the centrifuge tube and cooling to room temperature, adding a mixed solution of chloroform and isoamyl alcohol, uniformly mixing and performing centrifugal separation; (3) taking supernate, adding chloroform, uniformly mixing and performing centrifugal separation; (4) taking supernate, adding absolute ethyl alcohol which is conventionally precooled, uniformly mixing, standing for 30 minutes at -20 DEG C, then performing centrifugal separation, and discarding the supernate; (5) washing sedimentation with ethyl alcohol of which the volume concentration is 75%, drying at room temperature and adding a DNA dissolution buffer, and storing at -20 DEG C for standby use. The method provided by the invention is capable of effectively and rapidly extracting the genomic DNA of the melaleuca alternifolia which is high in purity and suitable for PCR detection, and the use of toxic chemicals in the extracting process is reduced.
Owner:GUANGXI FORESTRY RES INST

Automatic pesticide spraying control method and device for fruit tree pest control

ActiveCN113678811AImprove the efficiency of drug controlReduce drug useInsect catchers and killersPesticideAgricultural engineering
The invention discloses an automatic pesticide spraying control method and device for fruit tree pest control, and relates to the technical field of pest control. According to the technical scheme, the method is characterized by comprising the steps as follows: recognizing the insect pest category according to image information, and carrying out the statistics of the distribution probability; screening insect pests exceeding a set value as a first preparation category according to the distribution probability; collecting soil physical and chemical property information, and determining a priority value of the insect pest category according to a matching degree between the suitable growth range and the soil physical and chemical property information; screening out the insect pest category with the priority value exceeding an early warning value as a second preparation category; if the insect pest category only belongs to the first preparation category, carrying out upward rotary spraying of pesticide on the target object; if the insect pest category only belongs to the second preparation category, carrying out downward rotary spraying of the pesticide on the target object; and if the insect pest category belongs to the first preparation category and the second preparation category at the same time, carrying out upward and downward rotary spraying of pesticide on the target object. According to the invention, the source of insect pest categories can be visually reflected, so that the pesticide spraying device is flexibly controlled to carry out adaptive pesticide control.
Owner:POMOLOGY RES INST GUANGDONG ACADEMY OF AGRI SCI

Construction and applications of anti-influenza-virus or anti-inflammatory drug screening model based on in vitro culture of human lung particles

The invention belongs to the technical field of medicine, and specifically discloses construction and applications of an anti-influenza-virus or anti-inflammatory drug screening model based on in vitro culture of human lung particles. According to the invention, lung tissue is cut into small particles with a size of 0.05-0.2 mm<3>, the small particles are uniformly sub-packaged in the form of a suspension, and the sub-packaged small particles are infected with influenza virus after in vitro culture is performed for a certain time; the experiment results prove that influenza virus can replicateefficiently in pig lung particle tissue and human lung particle tissue, and initiate the up-regulation of a series of inflammatory factors, and the known anti-influenza-virus drugs and the known anti-inflammatory drugs can inhibit influenza virus and inflammatory factors in the constructed lung particle tissue models and have dose effects; the construction method has characteristics of simple andrapid operation, time saving and labor saving, and the constructed model can substantially retain the tissue activity and reduce the waste of tissue, and is close to the physiological conditions of animals; and after the method is optimized, the anti-influenza virus or anti-inflammatory drug screening model can achieve the micro, rapid and uniform effect, and can accurately evaluate drugs.
Owner:WUHAN INST OF VIROLOGY CHINESE ACADEMY OF SCI

A kind of insecticidal composition and its production method

ActiveCN107821431BStable and not easy to decomposeLong duration of actionBiocideAnimal repellantsPaichongdingOrganic solvent
The invention belongs to the technical field of pesticide preparations, and particularly relates to an insecticide composition and a preparation method thereof. The insecticide composition is preparedfrom the following raw materials in fraction by mass: 10 to 25% of Paichongding(1-((6-chloropyridin-3-yl)methyl)-7-methyl-8-nitro-5-propoxy-1,2,3,5,6,7-hexahydroimidazo[1,2-a]pyridine), 5 to 10% of quinalphos, 5 to 10% of sodium methyl cocoyl taurate, 30 to 50% of water, and 25 to 30% of organic solvent. The insecticide composition has the advantages that the insecticide composition is a Paichongding(1-((6-chloropyridin-3-yl)methyl)-7-methyl-8-nitro-5-propoxy-1,2,3,5,6,7-hexahydroimidazo[1,2-a]pyridine) and quinalphos compounding type insecticide, so that the obvious synergistic function is realized, the drug-resistant properties of chloropyridine and quinalphos are respectively delayed, and the usage amount of drug is small; under the mutual action of sodium methyl cocoyl taurate, chloropyridine and quinalphos, the drug effect is further improved, the stability is realized, and the easiness in decomposing is avoided. The preparation method has the advantage that the Paichongding(1-((6-chloropyridin-3-yl)methyl)-7-methyl-8-nitro-5-propoxy-1,2,3,5,6,7-hexahydroimidazo[1,2-a]pyridine) and the sodium methyl cocoyl taurate are firstly heated and mixed, and then are slowly mixed with the quinalphos, so that the uniformity and stability of the composition are ensured.
Owner:江苏克胜集团股份有限公司
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