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84results about How to "Reduce metabolic burden" patented technology

Nucleic acid-drug conjugate, drug delivery system, preparation method and application thereof

The invention belongs to the field of biological medicine and specifically discloses a nucleic acid-drug conjugate based on phosphorothioate modified nucleic acid, a drug delivery system and a preparation method thereof. Phosphorothioate groups in the phosphorothioate modified nucleic acid react with groups modified on drug molecules and capable of generating electrophilic reaction with the phosphorothioate groups, so as to form the nucleic acid-drug conjugate; the nucleic acid-drug conjugate can be self-assembled into drug-containing nano-carriers in various forms for drug delivery, in the manner of selecting different nucleotide sequences including functional nucleic acid; compared with the prior art, the invention has the advantages that the nucleic acid-drug conjugate can be acquired through a simple solid-phase synthesis technology, grafting sites and assembling forms of drug molecules on nucleic acid skeleton can be accurately controlled and the method has universality to chemotherapeutic drugs; according to the nucleic acid-drug conjugate, the drug delivery system, the preparation method and the application thereof disclosed by the invention, physicochemical properties and in vivo distribution properties of chemotherapeutic drugs are obviously improved, therapeutic effect thereof can be promoted and combination therapy of gene therapy and chemotherapy can be realized.
Owner:SHANGHAI JIAO TONG UNIV

Derivatives of ticagerlor, and preparation method and pharmaceutical application thereof

The invention provides derivatives of ticagerlor or pharmaceutically acceptable salts thereof, wherein R1, R2 and R3 in a formula representing the derivatives or the pharmaceutically acceptable salts thereof can be selected from amino acid residues or acetylsalicyloyl groups. The invention also provides a preparation method for the derivatives of ticagerlor or the pharmaceutically acceptable salts thereof and further provides application of the derivatives of ticagerlor or the pharmaceutically acceptable salts thereof in preparation of drugs used for treating blood coagulation-related diseases. The derivatives provided in the invention can improve bioavailability of ticagerlor or enhance the drug combination effect of ticagerlor and aspirin.
Owner:BRIGHTGENE BIO MEDICAL TECH (SUZHOU) CO LTD

Recombinant bacillus subtilis and construction method and application thereof

ActiveCN108998402AReduce metabolic burdenDoes not affect life activitiesBacteriaHydrolasesLife activityBacterial strain
The invention discloses a recombinant bacillus subtilis and a construction method and an application thereof, which belong to the technical field of genetic engineering. The method takes cell self functional membrane microdomain FMMs as a space frame, and constructs a multienzyme complex by using the specific marker proteins FloA and FloT, an artificial substrate channel is constructed, the metabolic burden of the cells can be effectively reduced, and the multienzyme complex is attached to plasmalemma , which facilitates the transport of a product from the intracellular to the extracellular. The recombinant bacillus subtilis constructed by the method efficiently synthesizes GlcNAc without affecting cell life activities, and a toxic intermediate metabolite GlcN-6-P can also be confined to the vicinity of the plasmalemma to reduce or eliminate the inhibition of cell viability. During a shake flask fermentation of a composite medium, the yield of acetylglucosamine in contrast bacterial strain BSGC is only 0.45 g / L, and the BSGAT acetylglucosamine output is increased to 5.29g / L, which is 11.76 times that of the contrast bacterial strain. The recombinant bacillus subtilis construction method of the invention is simple and convenient to use, and has the good application prospect.
Owner:JIANGNAN UNIV

Chassis strain for producing alkaline protease as well as construction method and application of chassis strain

The invention belongs to the technical field of bioengineering, and relates to breeding of industrial microorganisms, in particular to a chassis strain for producing alkaline protease as well as a construction method and application of the chassis strain. The invention provides a bacillus amyloliquefaciens gene engineering strain, which does not express six extracellular protease genes aprE, bpr, vpr, mpr, nprE and epr on a bacillus amyloliquefaciens genome, an extracellular polysaccharide gene cluster eps, a polyglutamic acid gene cluster pgs and a bacteriophage related gene with a nucleotide sequence as shown in SEQ ID NO: 1, and preferably, the bacillus amyloliquefaciens gene engineering strain also expresses an alkaline protease gene aprE in a heterologous overexpression manner. According to actual conditions in experiments and production, adverse factors influencing fermentation performance are analyzed, the chassis strain for producing alkaline protease at high yield is finally obtained through transformation and gene simplification of a genetic engineering host, and a new thought is provided for construction of the chassis strain for producing the alkaline protease at high yield.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

New application of arginine

The invention discloses new application of arginine, which is the application of arginine or a pharmaceutically acceptable salt, an ester or a mixture of the salt and the ester in preparing topical pharmaceutic preparations with at least one of the following effects: (1) treating and / or facilitating wound healing, and (2) reducing scar formation. Results in pharmacodynamics experiments show that the external use of L-arginine can remarkably facilitate trauma healing of rat skin as well as reduce the area of a wound scar. Arginine not only can be used for treatment and healing of traumas but also can be used for other skin diseases, including a pressure ulcer (bedsore), skin injuries caused by dermatitis, scald, burn and the like.
Owner:智刚

High-fiber calcium reinforced collagen jelly and preparation method thereof

The invention relates to the technical field of food processing, in particular to high-fiber calcium reinforced collagen jelly and a preparation method thereof. The jelly comprises the following components of 1%-10% of sea fish collagen oligopeptide powder, 8%-12% of resistant dextrin, 0.5%-2.0% of casein phosphopeptides, 0.15%-0.35% of calcium citrate, 1%-5% of fruit powder or fruit juice rich invitamin C, 1%-5% of sugar alcohol, 0.1%-2.0% of a thickening agent, 0.01%-0.045% of a sweetening agent, 0.05%-2.0% of a sour agent, 0.01%-0.05% of potassium sorbate and the balance of water. The prepared jelly can effectively strengthen the effect of enriching the calcium, is good in properties and stability, sour, sweet and smooth in mouth feel, and easy to digest and absorb, does not enable weight to be increased, does not corrode teeth, can be eaten by diabetics, is convenient to carry, green and healthy, and is free from any pigment and essence for coloring and aroma increasing.
Owner:GUANGZHOU SAIJIAN BIO TECH

Invert-sugar powdery injection and its production

An invertose powder injection is prepared from glucose and pectose through preparing aseptic pectose, preparing aseptic glucose, sterilizing tubular bottle, sterilizing butyl rubber plug, mixing aseptic pectose with aseptic glucose to become invertose, loading in aseptic tubular bottle, sealing, and packing.
Owner:张为群

Composition with effect of preventing and treating complications of dialysis patient, and preparation method and application of composition

ActiveCN110538315AHelps correct negative nitrogen balanceImprove protein nutritional statusOrganic active ingredientsPeptide/protein ingredientsPatient compliancePotassium
The invention provides a composition with the effect of preventing and treating complications of a dialysis patient, and a preparation method and application of the composition. The composition is prepared from the components in parts by mass: 5-33 parts of whey proteins, 1-20 parts of casein or salts of the casein, 1-50 parts of maltodextrin, 1-10 parts of corn syrup and 5-75 parts of sunflower seed oil. The blood potassium level can be controlled to be lower than 5.0 mmol / L, the blood phosphorus level is controlled to be lower than 1.78 mmol / L, the complications such as protein malnutrition,hyperphosphatemia, hyperkalemia and hypertension of the dialysis patient are comprehensively relieved, the dialysis interval time of the dialysis patient is prolonged, and the harm of dialysis to thebody is reduced. In addition, the composition in each unit dose is brewed with 60 mL of water, the liquid intake burden is relieved and is equivalent to the osmotic pressure of the human body, gastrointestinal tolerance is better, and patient compliance is higher.
Owner:麦孚营养科技(北京)有限公司 +1

Bait capable of enhancing disease resistance of juvenile carp

InactiveCN107647087AEnhance anti-virus and anti-bacterial abilityStrong reductionFood processingClimate change adaptationAnti virusVitamin C
The invention belongs to the technical field of fish culture, and particularly relates to bait capable of enhancing the disease resistance of juvenile carp. The bait is prepared from vinasse, barley,soybeans, pear residues, oyster mushroom, purple cabbage, asparagus, vitamin C, madasiatic acid, a feed additive and coconut oil. The bait is easy to digest and absorb, has high reducing capacity, free radical scavenging capacity and lipid peroxidation inhibiting capacity, and can effectively retard the cell senescence, prevent the formation of lipid peroxide, promote the healthy growth of the body, promote the proliferation of new cells, promote the growth, development and improvement of organs, reduce the metabolic burden of hepatopancreas, effectively improve the metabolic capacity of the body, improve the enzymatic activity of the body and improve the nutrient absorption, transportation and transformation capacity, so that the anti-virus and anti-germ capacity of the body is effectively enhanced, the disease rate and death rate of juvenile carp are significantly reduced, the fast and robust growth of juvenile carp is promoted, the culture cycle is shortened, the culture cost is reduced, and the economic benefit of farmers is increased.
Owner:JINMAOYUAN BRANCH OF WUHE JINTANG AQUACULTURE CO LTD

Medicinal preparation and preparation method thereof

The invention discloses a medicinal preparation and a preparation method thereof. The medicinal preparation contains 5-methyl-2-phenyl-1,2-dihydropyrazol-3-one, 3-butylisobenzofuran-1(3H)-one and camphol, as well as pharmaceutically-acceptable auxiliary materials, and a preparation formulation is injection liquid or a freeze-dried agent. The injection liquid provided by the invention can obviouslyreduce the medicine administration dosage of 5-methyl-2-phenyl-1,2-dihydropyrazol-3-one; and besides, the 3-butylisobenzofuran-1(3H)-one is administrated in the form of injection, compared with an orally-taken manner, the form of injection can notably reduce the medicine administration dosage, so that liver metabolism burden can be reduced, and the medicinal preparation has the advantages of being low in medicine administration dosage, stable in properties, low in incidence rate of adverse reactions of the liver and the like.
Owner:JIANGSU SIMCERE PHARMA
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