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14061 results about "Drug resistance" patented technology

Drug resistance is the reduction in effectiveness of a medication such as an antimicrobial or an antineoplastic in treating a disease or condition. The term is used in the context of resistance that pathogens or cancers have "acquired", that is, resistance has evolved. Antimicrobial resistance and antineoplastic resistance challenge clinical care and drive research. When an organism is resistant to more than one drug, it is said to be multidrug-resistant. The immune system of an organism is in essence a drug delivery system.

Anti-infection compound preparation and its preparation method

The anti-infective medicine, including powder, mixture, aerosol, capsule, injection, suppository, ointment and microcapsule, is characterized by that on the theroretical basis of combining traditional Chinese medicine and modern immunology the immunoglobulin, effective components of Chinese medicinal materials which are extracted according to the compound prescription and auxiliary preparation are combined together organically, and undergone the fine preparation process to obtain a high-efficiency, safe, stable, environment-protecting type anti-infection medicine having no toxic side effect and having no drug resistance.
Owner:张勇飞 +2

Bactericide pesticide composite containing oligochitosan

InactiveCN101816305AEnhanced application safetyReduce dosageBiocideFungicidesEcological environmentDrug resistance
The invention discloses a bactericide pesticide composite containing oligochitosan, which comprises a component A and a component B, wherein the component A is oligochitosan or a derivative of the oligochitosan; and the component B is one or several of active compounds. The pesticide composition can produce a synergistic action, reduce the dosage of a chemically synthetic bactericide, prevent or delay the medicament resistance of the bactericide, improve crop stress resistance and yield, regulate metabolic balance in plant bodies and improve quality of agricultural products, improve the application safety of the bactericide and is more safe to ecological environmental and human bodies.
Owner:HAINAN ZHENGYE ZHONGNONG HIGH TECH

Combined use of vip3ab and cry1fa for management of resistant insects

InactiveUS20120317682A1Reduce and eliminate requirementNon-cross-resistantBiocideFungiCombined useDrug resistance
Owner:DOW AGROSCIENCES LLC

Composition for driving and killing mosquitoes and preparation method thereof

The invention relates to a composition for driving and killing mosquitoes. The composition is characterized by comprising the following substances by portions: 20 to 50 portions of natural essential oil, 10 to 35 portions of pyrethroid, 25 to 50 portions of solvent oil, 3 to 20 portions of surface active agent and 5 to 15 portions of antioxidant. The composition has the advantages of: (1) having no toxic side effect to body, having multiple action of driving mosquitoes, sterilizing and essence, being capable of reducing the cost of the product and bringing pleasant feeling to a user; (2) having different effective components with different action mechanism for target insects and also being capable of effectively retarding the drug resistance thereof; (3) having higher safety than chemosynthetic insecticide due to easy decomposition and low residue of the natural essential oil in natural environment; (4) having obvious control effect to mosquitoes, flies and cockroaches and being capable of effectively reducing the using amount of pyrethroid due to adding of the natural essential oil; and (5) having a certain action of restraining and killing various harmful bacterium such as golden staphylococcus aureus, shigella shigae and Pseudomonas aeruginosa due to adding of natural vegetable garlic oil.
Owner:江西山峰日化有限公司

System and method for detection of HIV tropism variants

An embodiment of a method for detecting low frequency occurrence of one or more HIV sequence variants associated with drug resistance is described that comprises the steps of: generating cDNA species from each RNA molecule in an HIV sample population; amplifying at least one first amplicon from the cDNA species, wherein each first amplicon comprises a plurality of amplified copies and is amplified with a pair of nucleic acid primers that define a locus of the first amplicon; clonally amplifying the amplified copies of the first amplicons to produce a plurality of second amplicons wherein a plurality of the second amplicons comprise an immobilized population of substantially identical copies from one of the amplified copies of first amplicons; determining a nucleic acid sequence composition of the substantially identical copies from at least 100 of the immobilized populations in parallel on a single substrate; and detecting one or more sequence variants that occur at a frequency of 5% or less in the nucleic acid sequence composition of the at least 100 immobilized populations; and correlating the detected sequence variants with variation associated with HIV tropism.
Owner:454 LIFE SCIENCES CORP

Pyrimidoheterocyclic compound, medicinal composition and application thereof

The invention discloses a pyrimidoheterocyclic compound represented as the formula (I), or a pharmaceutically acceptable salt or a stereisomer thereof, or a prodrug molecule thereof. The pyrimidoheterocyclic compound can effectively inhibit growth of various tumor cells and has an inhibiting effect on EGFR protease. The pyrimidoheterocyclic compound can be used for preparing an anti-tumor drug, and can overcome drug resistance caused by medicines in the prior art, such as gefitinib, erlotinib and the like, has a selectivity on wild non-small cell lung cancer and is excellent in pharmacokinetic property.
Owner:GUANGZHOU INST OF BIOMEDICINE & HEALTH CHINESE ACAD OF SCI

Synthesis of tetracyclines and analogues thereof

The tetracycline class of antibiotics has played a major role in the treatment of infectious diseases for the past 50 years. However, the increased use of the tetracyclines in human and veterinary medicine has led to resistance among many organisms previously susceptible to tetracycline antibiotics. The modular synthesis of tetracyclines and tetracycline analogs described provides an efficient and enantioselective route to a variety of tetracycline analogs and polycyclines previously inaccessible via earlier tetracycline syntheses and semi-synthetic methods. These analogs may be used as anti-microbial agents or anti-proliferative agents in the treatment of diseases of humans or other animals.
Owner:PRESIDENT & FELLOWS OF HARVARD COLLEGE

Plant insecticidal protective agent and application thereof

The invention belongs to the technical field of the farm chemical, and in particular relates to a plant insecticidal protective agent and an application thereof. The invention provides the plant insecticidal protective agent which is recomposed by food suppressing hydrazine and organic phosphorus (I), pyrethroids insecticides (ii), insect growth regulation agent (III), Macrolides (IV), heterocyclic insecticidal component (V), carbamates (VI) or Nereistoxin pesticide and the application thereof. The recomposed insecticidal composite remarkably improves the insecticidal effect, at least has four acting ways at the same time such as touch out, stomach toxicity, internal absorption and antifeedant so as to adequately protect the plant, favors the delay of the production of the drug resistanceof the insects through different acting ways, and enlarges the pest control spectrum. The composite can be widely applicable to the control of different chewing mouthparts, piercing-sucking mouthparts, lapping mouthparts and rasping mouthparts pests.
Owner:QINGDAO STAR CROPSCI

Physiological regulator for maternal animals, and preparation method thereof

The invention discloses a special physiological regulator for maternal animals, and a preparation method thereof, and belongs to the field of feed additive. A technical scheme of the physiological regulator comprises: carrying out crushing and screening for dandelion, leonurus, licorice root and angelica; adding soybean meal and / or wheat bran; adding water to carry out immersing; adjusting pH value of the resulting mixture; carrying out a sterilization; inoculating probiotics to carry out a fermentation after cooling, followed by stoving after completing the fermentation to obtain the physiological regulator. With the prepared physiological regulator for the maternal animals, immunity and disease resistance of the maternal animals are raised, incidence rate of genital system infection is effectively reduced, feed inversion rate is increased, mammogenesis is improved, milk yield is raised, incidence rate of mammitis is reduced, and milk quality is improved. The physiological regulator has characteristics of quick onset, stable and reliable effect, no toxic and side-effect, no pollution, no residue, and no drug resistance generating, and meets requirements of safe feed additive and assurance of foods of animal origin. In addition, the physiological regulator for the maternal animals can be adopted as a veterinary drug through raising using dosage of the physiological regulator, and provides a substantial curative effect for prevention and cure of the mammitis.
Owner:BEIJING KEEPYOUNG TECH

Methods and composition for the treatment of cystic fibrosis and related illnesses

InactiveUS20060258599A1Effective treatmentCorrect cellular GSH imbalancesBiocideCarbohydrate active ingredientsDiseaseGlutathione binding
The present invention relates to methods and compositions to treat subjects having cystic fibrosis. These compositions comprise the class of isothiocyanates. Isothiocyanates, absorbed by a cell are conjugated with glutathione GSH by glutathione-s-tranferase (GST). The conjugates are substrates of the multi-drug resistance associated (MRP) / multi-drug resistance (MDR) proteins. These proteins are functionally redundant to the cystic fibrosis transmembrane conductance regulator (CFTR), allowing for the substrate conjugates to be exported from the cell. The export of GSH conjugates restores intracellular and extracellular levels of GSH to normal levels. Normalizing both extracellular and intracellular GSH via the increased conjugation of isothiocyanates with GSH, and subsequent export, can significantly rectify numerous enzymatic processes and correct the pathologies that are typical of patients suffering from cystic fibrosis.
Owner:CHILDERS MELANIE

Anti-disease, growth promotion and drought-resistant functional plant endogenous bacillus velezensis and application thereof

ActiveCN108004185APromote growthRapid mass colonizationBiocideBacteriaBacteroidesNutrition
The invention relates to plant endogenous bacillus velezensis which is capable of preventing and treating plant diseases and insects and has functions of growth promotion and drought resistance, and application thereof. The preservation number of the Bacillus velezensis E6 provided by the invention in the China General Microbiological Culture Collection Center is CGMCC No. 9665. The strain is separated from a plant root, is rapid to grow, can be rapidly and greatly colonized at plant roots and has ecological niche advantages; the strain E6 not only has an efficient prevention and treatment function on plant soil-borne fungal diseases and is capable of promoting growth of plant root systems and improving drought resistance of plants, but also is capable of damaging formation of pathogenic bacterium bacterial biofilms, is free of drug resistance of bacteria, has relatively good advantages when being compared with other fungicides, is simple in nutrition requirement and low in productioncost, and has good application prospects.
Owner:河北伊诺生化有限公司

3-(2-pyrimidine amino) phenyl acrylic amide compound and application thereof

The present invention discloses a 3-(2-pyrimidine amino) phenyl acrylic amide compound in the structure of formula (I) or a pharmaceutically acceptable salt or a stereisomer or a prodrug molecule. The 3-(2-pyrimidine amino) phenyl acrylic amide compound or the pharmaceutically acceptable salt can effectively inhibit the growth of various tumor cells, and inhibit EGFR (epidermal growth factor receptor), HER (human epidermal receptor2) family other protease, can be used in the preparation of antitumor drugs, and can overcome the drug resistance induced by gefitinib, erlotinib and the like.
Owner:PHARMA SHANGHAI

Methods of determining susceptibility of tumors to tyrosine kinase inhibitors

This disclosure provides tyrosine kinase protein and nucleic acid variants, particularly FGFR2 variants, which are linked to drug resistance. The disclosure further provides methods of diagnosis and theranosis, and development of new therapeutic agents using these molecules and fragments thereof, and kits for employing these methods and compositions.
Owner:QUEENSLAND UNIVERSITY OF TECH +1

Laying hen feed and traditional Chinese medicine feed additive used by same

The invention relates to a laying hen feed prepared from bran, salt, corn grit, fish meal, ground oyster shells, rice bran, bean dregs and a traditional Chinese medicine feed additive, wherein the traditional Chinese medicine feed additive comprises the following components: honeysuckle, common cnidium fruit, corydalis tuber, small fennel, motherwort, self-heal, houttuynia, baikal skullcap root, dyers woad leaf, dangshen, astragalus root, angelica sinensis, medical stone, eclipta, dodder, barbat skullcap and weeping forsythia. The feed additive provided by the invention has both medicinal and nutritional actions, can prevent diseases and can also improve the production performance; the feed additive can directly sterilize and inhibit bacteria, adjusts the immunity function of of the organism, has non-specific antibacterial action, and greatly improves the survival rate of chicken; and the feed additive eliminates chemical damage to the chicken, can effectively improve the production performance of animals, simultaneously has small toxic side effects and no drug resistance, can effectively improve the egg quality, achieves the requirements of purely natural green food, and can acquire good economic benefit.
Owner:SHANDONG NEW HOPE LIUHE GROUP

Delivering functional nucleic acids to mammalian cells via bacterially-derived, intact minicells

Intact bacterially derived minicells containing functional nucleic acids or plasmids encoding functional nucleic acids can reduce, in targeted mammalian cells, drug resistance, apoptosis resistance, and neoplasticity, respectively. Methodology that employs minicells to deliver functional nucleic acids, targeting the transcripts of proteins that contribute to drug resistance or apoptosis resistance, inter alia, can be combined with chemotherapy to increase the effectiveness of the chemotherapy.
Owner:ENGENEIC MOLECULAR DELIVERY PTY LTD

Insect killing compound containing chlorantraniliprole

The invention discloses an insect killing compound containing chlorantraniliprole, which is prepared by two effective ingredients A and B. The ingredient A is chlorantraniliprole, the ingredient B is one of high-efficiency cypermethrin, trifluoro-cypermethrin, dursban, profenofos, dipterex, diafenthiuron, chlorfenapyr, emamectin benzoate, pleocidin, tebufenozide, hexaf lumuron, chlorfenapyr, pyridaben, acetamiprid, isoprocarb, dimehypo and cartap, and the composed mass ratio of the effective ingredient A to the ingredient B is 1:60-60:1. The accumulated mass percent of the two ingredients A and B accounts 1%-85% of the total mass of the compound. In the invention, the blending of the two active ingredients is utilized, so that the effect is improved obviously, the dosage of effective ingredients is reduced, and the drug resistance of insects and mites on the chlorantraniliprole is delayed. The insect killing compound can be used controlling various insects on rice, cotton, vegetables, fruit trees and the like.
Owner:HAINAN ZHENGYE ZHONGNONG HIGH TECH

Biomarkers for diagnosis, prognosis, monitoring, and treatment decisions for drug resistance and sensitivity

The present invention provides methods and compositions for identifying cancer cells that are either sensitive or resistant to a particular anti-cancer therapy. Accordingly, the present invention allows for more accurate diagnosis, prognosis, and monitoring of a subject's condition. Furthermore, the ability to assess a subject's resistance or sensitivity to a particular treatment regimen will permit more informed treatment decisions to be made prior to beginning therapy. The present invention also overcomes deficiencies in the prior art concerning the treatment of cancers by providing methods and compositions for treating cancer and improving the effectiveness of other cancer therapies.
Owner:BOARD OF RGT THE UNIV OF TEXAS SYST

Chinese medicine for treating cardiac and cerebral vascular diseases

The Chinese medicine for treating cardiac and cerebral vascular diseases is prepared with American ginseng, astragalus root, angelica, leatherleaf milletia, saffron and other 23 kinds of Chinese medicinal materials. It has the functions of dilating blood vessel, antagonizing coagulation, eliminating thrombus, improving blood circulation, etc. It is used in treating coronary heart disease, angina, myocardial ischemia and other cardiac and cerebral vascular diseases. It has the advantages of short treating period, fast acting, no resistance, no toxic side effect and high effective rate.
Owner:刘光辉

Pig feed additive capable of replacing antibiotics, and preparation method and application thereof

ActiveCN103005210AAcid resistantGuaranteed Oxygen DensityAnimal feeding stuffPhosphoric acidAntibiotic Y
The invention relates to a pig feed additive capable of replacing antibiotics, and a preparation method and an application thereof. Components and weight part ratio thereof in a formula are as follows: 1-5 parts of medicated leaven, 1-5 parts of angelica sinensis, 1-5 parts of radix astragali, 1-5 parts of hawthorn, 1-5 parts of radix codonopsis, 10-20 parts of citric acid, 10-20 parts of lactic acid, 20-30 parts of coated phosphoric acid, 5-10 parts of a micro-ecological preparation, 5-10 parts of yeast cell wall polysaccharide, 1-5 parts of a composite plant essential oil and 5-10 parts of a carrier. The pig feed additive carries out combination collocation of traditional Chinese herbs and functional polysaccharide, the micro-ecological preparation, acidifying agents, plant essential oil and the like, so that synergic effect of the traditional Chinese herbs and other components are maximized; the pig feed additive can replace the antibiotics completely; problems of drug resistance, drug residues, overcommitment and the like of the antibiotics which trouble animal husbandry for a long time is reduced; and at the same time, the pig feed additive plays effects of improving culture environment, reducing feed safety hidden dangers, increasing culture benefits and the like.
Owner:LUOGANG BRANCH GUANGDONG WANGDA GRP

Method for preparing polyvinylidene chloride and acrylic ester copolymerization latex

InactiveCN101186666AFunctional monomerBoPET
The invention provides a preparation method of copolymerization latex of polyvinylidene chloride and acrylate, which comprises that reacts raw materials polyvinylidene chloride monomer, second monomer, functional monomer, composite emulsifier, pH adjuster, initiator, seed latex, and water in inertia gas, 0.08-0.12MPa and 50-60DEG C, collects polyvinylidene chloride and acrylate copolymerization latex from reaction product. The inventive PVDC latex is white stably, without changing into yellow after coating, with high stability. The latex can be directly coated on surface of base material as BOPP, BOPET and PVC hard sheet, while the coated or coated and dried film has barrier property, damp proofness, fragrance protectiveness, chemical drug resistance, and fireproof or the like. The film is transparent for long time, without changing into yellow. The inventive product can be used in one-time environment-friend dinnerware and inner layer of paper package, as tobacco, food and drug.
Owner:SHANGHAI CHLOR ALKALI CHEM

Insecticidal composition containing indoxacarb

The invention relates to a pesticide composition containing indoxacarb, mainly used in crops disinfestation, which comprises emulsifiable concentrate, wettable powder and suspension agent. The active ingredients of the pesticide composition are indoxacarb and active ingredient B which is any one or composition of more than one with any proportion of Methylamino abamectin benzoate, hexaflumuron, nitenpyram, avermectin, fipronil, chlorfenapyr, acetamiprid, profenofos, phoxim, high-efficiency cypermethrin, cyhalothrin, triazophos and chlorpyrifos. The pesticide composition has the advantages of enlarging the application range, having strong contact toxicity and stomach poisoning action, having low mammalian toxicity and better compatibility of environment, being effective to the pest of every growth period, increasing the effect of every component of the composition significantly, reducing the production cost and agricultural cost of the pesticide, having wide insecticidal spectrum and high efficiency, delaying the occurrence of the drug resistance of the pests, prolonging the service life of the pesticide agent, enabling the high yield and high quality of the crops, having strong activity, long persistent period and stable drug efficacy to the pests.
Owner:湖南万家丰科技有限公司

Novel efficient and natural attractant

The invention relates to natural attractants, belonging to the field of feed additives. One natural attractant is mainly composed of a dried tangerine peel crushed substance, a hawthorn crushed substance, a cinnamon crushed substance, a mugwort leaf crushed substance, and composite microbial powder. The other natural attractant is mainly composed of a dried tangerine peel extractive, a hawthorn extractive, a cinnamon extractive, a mugwort leaf extractive, and composite microbial powder. The attractants provided by the invention has the advantages of promoting the ingestion of livestock, poultry and aquatic animals, increasing the ingestion speed and feed intake of the livestock, poultry and aquatic animals, avoiding the indigestion caused by overfeeding, increasing the feed intake and digestibility of the animals to the feeds hard to digest, expanding the application range and usage amount of unconventional feed materials, enhancing the immunity and anti-stress capability of the animals, resisting diseases, promoting growth, decreasing the production cost of the animal feeds and increasing the production benefits; the attractants contain no antibiotic and chemical medicine as well as drug residue, can be used for a long time without causing drug resistance, and have safety and high efficiency.
Owner:BEIJING KEEPYOUNG TECH

Polyethylene glycol-poly(lactic-co-glycolic acid)-polylysine nano-delivery system, preparation method and application thereof

The invention belongs to the nanotechnical field, and discloses preparation of a methoxy polyethylene glycol-poly(lactic-co-glycolic acid)-polylysine(mPEG-PLGA-PLL) cationic polymer nano-drug delivery system and application thereof. The nano-drug delivery system can have multi-functional characteristics such as tumor targeting, reversing drug resistance and medical diagnosis functions through modification, and can be used for supporting organic medicaments, water-soluble medicaments, non-water-soluble medicaments, or developers for diagnosis. The preparation method is simple and convenient, is suitable for mass production, and is particularly suitable for the preparation of targeting drug delivery systems.
Owner:森心(上海)科技有限公司

Antimicrobial physical method

The invention discloses an antimicrobial physical method. An effect of killing or inhibiting microorganisms can be realized when the antimicrobial physical method is applied to a human body, or an animal or the surface of an object. The antimicrobial physical method is safe to the human body, and drug resistance caused by antibacterial agents can not be produced.
Owner:NMS TECH

Compositions and methods to reduce mutagenesis

The present invention provides methods and compositions for said inhibition of drug resistance. In one embodiment, said invention provides methods and compositions for said inhibition of antibiotic resistance. The invention generally involves said administration of achaogens, agents that inhibit said mutational process, to inhibit said evolution of drug resistance. Also, described herein are compositions that are suitable for use as achaogens.
Owner:THE SCRIPPS RES INST +1

SgRNA directing sequence for specific targeting of human ABCG2 gene and application thereof

The invention discloses an sgRNA directing sequence for specific targeting of a human ABCG2 gene and an application thereof, and belongs to the field of gene engineering application. The sgRNA directing sequence has a nucleotide sequence of GCTGCAAGGAAAGATCCAAG. According to the sgRNA directing sequence, two single-stranded oligo sequences are designed and synthesized and then are annealed to form a double chain, and then the double chain is connected with a Cas9 vector; with use of the Cas9 vector, sgRNA and a CRISPR system are introduced into target cells, a Cas9 protein can find out a DNA sequence matched with the Cas9 protein under guidance of the sgRNA, shearing is performed, and the ABCG2 gene is knocked out. According to the sgRNA directing sequence provided by the invention, the ABCG2 gene is knocked out or edited by the CRISPR-Cas9 system, then the expression of the ABCG2 is inhibited or eliminated, and the problem of multi-drug resistance generated in treatment of tumor can be effectively solved.
Owner:JINAN UNIVERSITY

Methods of reversing drug resistance in cancer cells

This invention relates in general to methods and compositions for reversing the drug resistance of cancer cells. In particular this invention is directed to inhibition of drug resistance in cancer cells or to the induction of apoptosis in cancer cells by the use of glucosylceramide synthase antisense compounds. This invention is further directed to compositions comprising glucosylceramide synthase antisense compounds and a kit or drug delivery system comprising the compositions.
Owner:JOHN WAYNE CANCER INST

Pentadeuteropyridine compounds, and preparation method, pharmaceutical compositions and uses thereof

The invention relates to pentadeuteropyridine compounds represented by the following formula (I) and pharmaceutically acceptable salts, stereoisomers, prodrugs and solvates thereof, and a preparation method, pharmaceutical compositions and uses thereof. The compounds can generate an inhibitory effect on variation forms of epidermal growth factor receptor (EGFR) protein kinase, thereby effectively inhibiting the growth of a variety of tumor cells; the compounds can be used for preparation of antitumor drugs, are used for treatment or prevention of a plenty of different cancers, and moreover, can overcome the drug resistance induced by conventional drugs gefitinib, erlotinib and other first-generation EGFR inhibitors. More specifically, the compounds can be used for preparation of drugs for treatment or prevention of diseases, obstacles, disorders or illness conditions mediated by certain variation-form epidermal growth factor receptors (such as L858R activated mutants, Exon19 deletion activated mutants, and T790M resistance mutants).
Owner:INVENTISBIO CO LTD +1

Recombinant vector for eliminating activity of kanamycin drug resistance gene and building method of recombinant vector

The invention provides a recombinant vector for eliminating the activity of a kanamycin drug resistance gene, and aims at eliminating drug resistance germs in organisms and solving the problem of kanamycin drug resistance of the germs. The recombinant vector for eliminating the activity of the kanamycin drug resistance gene is characterized by comprising a pCas9 vector subjected to chloramphenicol resistance elimination and a gRNA nucleotide sequence KR58 or KR208 aiming at a kanamycin resistance gene kan; the concrete nucleotide sequence of the KR58 is GCCGCGAT TAAATTCCAACA, and the concrete nucleotide sequence of the KR208 is CAATGATG TTACAGATGAGA. A building method of the recombinant vector mainly comprises the steps of carrying intergenic region nucleic acids by a novel gene editing tool CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) / Cas9 system; removing a chloramphenicol resistance gene on the recombinant vector; transforming the gene into vaccine vector bacteria such as attenuated salmonella typhimurium; performing co-culture on the recombinant bacteria and the kanamycin drug resistance gene so that the recombinant vector in the recombinant bacterium cell enters the kanamycin drug resistance bacteria in an engaging mode. The activity of the kanamycin resistance gene kan is effectively inhibited, so that the original drug resistance bacterium cannot grow on a kanamycin culture medium.
Owner:YANGZHOU UNIV
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