257 results about "Chymotrypsin" patented technology

A method of utilizing the chymotrypsin level of an individual as a measure of the success of secretin, other neuropeptides, and peptides or digestive enzyme administration to such individuals, and in particular, as a prognosticative of potential secretin, other neuropeptides, peptides, and digestive enzyme administration for persons having ADHD, Autism and other PDD related disorders. In one aspect, a method for determining the efficacy of secretin, other neuropeptides, peptides, or digestive enzymes for the treatment of an individual diagnosed with a pervasive developmental disorder (PDD) comprises obtaining a sample of feces from an individual, determining a quantitative level of chymotrypsin present in the sample, and correlating the quantitative level of chymotrypsin determined to be present in the sample with the PDD to determine the efficacy of treating the individual with secretin, other neuropeptides, peptides, or digestive enzyme administration. In another aspect, a therapeutic method for treating an individual diagnosed with i PDD pervasive developmental disorder comprises determining the efficacy of secretin, other neuropeptides, peptides, and digestive enzyme administration for the treatment of the individual based on a measure of the individual's chymotrypsin level, and administering secretin, other neuropeptides, peptides, or digestive enzymes to the individual based on the determination of the measure of the individual's chymotrypsin level.

A method of utilizing the chymotrypsin level of an individual as a measure of the success of secretin, other neuropeptides, and peptides or digestive enzyme administration to such individuals, and in particular, as a prognosticative of potential secretin, other neuropeptides, peptides, and digestive enzyme administration for persons having ADHD, Autism and other PDD related disorders. In one aspect, a method for determining the efficacy of secretin, other neuropeptides, peptides, or digestive enzymes for the treatment of an individual diagnosed with a pervasive developmental disorder (PDD) comprises obtaining a sample of feces from an individual, determining a quantitative level of chymotrypsin present in the sample, and correlating the quantitative level of chymotrypsin determined to be present in the sample with the PDD to determine the efficacy of treating the individual with secretin, other neuropeptides, peptides, or digestive enzyme administration. In another aspect, a therapeutic method for treating an individual diagnosed with i PDD pervasive developmental disorder comprises determining the efficacy of secretin, other neuropeptides, peptides, and digestive enzyme administration for the treatment of the individual based on a measure of the individual's chymotrypsin level, and administering secretin, other neuropeptides, peptides, or digestive enzymes to the individual based on the determination of the measure of the individual's chymotrypsin level.

A method of utilizing the chymotrypsin level of an individual as a measure of the success of secretin, other neuropeptides, and peptides or digestive enzyme administration to such individuals, and in particular, as a prognosticative of potential secretin, other neuropeptides, peptides, and digestive enzyme administration for persons having ADD, ADHD, Autism and other PDD related disorders. In one aspect, a method for determining the efficacy of secretin, other neuropeptides, peptides, or digestive enzymes for the treatment of an individual diagnosed with a pervasive developmental disorder (PDD) comprises obtaining a sample of feces from an individual, determining a quantitative level of chymotrypsin present in the sample, and correlating the quantitative level of chymotrypsin determined to be present in the sample with the PDD to determine the efficacy of treating the individual with secretin, other neuropeptides, peptides, or digestive enzyme administration. In another aspect, a therapeutic method for treating an individual diagnosed with a PDD pervasive developmental disorder comprises determining the efficacy of secretin, other neuropeptides, peptides, and digestive enzyme administration for the treatment of the individual based on a measure of the individual's chymotrypsin level, and administering secretin, other neuropeptides, peptides, or digestive enzymes to the individual based on the determination of the measure of the individual's chymotrypsin level.

A therapeutic agent for the treatment of the symptoms of addiction and the method for preparing the therapeutic agent is disclosed. The therapeutic agent is a stable pharmaceutical preparation containing, but not limited to, digestive/pancreatic enzymes. The therapeutic agent may be manufactured by a variety of encapsulation technologies. Delivery of the therapeutic agent may be made orally, through injection, by adherence of a medicated patch or other method. Further, a method of using of a biomarker, the presence of chymotrypsin in the gastrointestinal tract to determine the presence of symptoms of addiction, and the likelihood of relapsing into addiction is disclosed.

This invention relates to methods and compositions for preventing and treating skin rash, such as perineal dermatitis, associated with enzymatic dermatitis. More particularly, this invention relates to compounds containing procyanidins, which possess trypsin and/or chymotrypsin inhibitory activity and are suitable for use in compositions for preventing and treating skin irritation caused by protease exposure, such as perineal dermatitis.

The invention provides a triple-enzyme hydrolysis preparation method of anti-tumor polypeptides of spirulina. The method comprises the following steps: preparing a solution having a concentration of 5 percent from spirulina powder with ultrapure water; repeatedly freezing and thawing, homogenizing and performing ultrasonic treatment, centrifuging to obtain supernate, freezing and drying for later use; adding the prepared protein fluid into pepsin for enzyme hydrolysis, controlling the pH value, adding trypsin for enzyme hydrolysis, adding chymotrypsin for enzyme hydrolysis, controlling the pH value, deactivating enzyme, cooling, and centrifuging to obtain supernate; sequentially filtering with ultrafiltration membranes having molecular weight cut-off of 10KD, 5KD and 3KD respectively to obtain three kinds of spirulina protein enzymatic hydrolysates; carrying out sephadex G15 column chromatography on 0-3K of enzymatic hydrolysate, eluting with water, and collecting four polypeptide ingredients, namely anti-tumor polypeptides of spirulina. The obtained spirulina polypeptide and monopeptide ingredients can be used for establishing a theoretical basis for development and utilization of anti-tumor medicines and health foods.

Using a novel water-soluble, active ester amide-containing functionalized controlled radical polymerization initiator, stimuli responsive polymers have been grown from the surface of a protein, exemplified by chymotrypsin or any protein having surface amino acids that will covalently bind to the active ester amide-containing functionalized initiator. It is shown that changes in temperature or pH can change the conformation of the polymer surrounding the enzyme, which in turn enabled the rational tailoring of enzyme activity and stability. This method has afforded an increase in the activity and stability of the enzyme by an order of magnitude at pH's where the enzyme is usually inactive or unstable. Multimodal temperature responsive protein-block copolymer conjugates are described.

Disclosed herein are methods for diagnosing or treating pregnancy related hypertensive disorders that include the use of a polypeptide or a nucleic acid encoding a polypeptide selected from the following: follistatin related protein, interleukin 8, inhibin A, VEGF-C, angiogenin, beta fertilin, hypothetical protein, leukocyte associated Ig-like receptor secreted protein, erythroid differentiation protein, adipogenesis inhibitory factor, corticotropin releasing factor binding protein, alpha-1 anti-chymotrypsin, insulin-like growth factor binding protein-5, CD33L, cytokine receptor like factor 1, platelet derived endothelial growth factor, lysyl hydroxylase isoform 2, stanniocalcin precursor, secreted frizzled related protein, galectin-3, alpha defensin, ADAM-TS3, cholecystokinin precursor, interferon stimulated T-cell alpha chemoattractant precursor, azurocidin, sperminine oxidase, UDP glycosyltransferase 2 family polypeptide B28, neurotrophic tyrosine kinase receptor 2, neutral endopeptidase, CDC28 protein kinase regulatory subunit 2, beta glucosidase, lanosterol synthase, calcium/calmodulin-dependent serine protein kinase, estrogen receptor-alternatively spliced transcript H, chemokine (CX3C motif) receptor 1, tyrosinase-related protein 1, hydoxy-delta-5-steroid dehyrogenase, dihydropyramidinase-like-4, and cytochrome P450-family 11.

The invention belongs to the field of bio-pharmaceutical products, which provides a chemical modification method for recombinate human rh-Endostatin ('rh-ES' is called for short) through the way of using mPEG-propionaldehyde to be combined on the fixed point of free amino of N-terminal amino acid of rh-ES. Mono-PEG-rhES is the output material, its purity meet the requirements of biological products. It plays a key role in the hydrolysis resistance of trypsin and chymotrypsin, it can be used as long-acting formulations for its stability for pH and temperature and there is a great perspective in the clinical treatment of cancer.

The invention discloses a trypsin-chymotrypsin electrochemical synchronous detection method based on enzyme digestion and belongs to the technical field of electrochemical sensing. Through gold-mercapto bond action, a DNA-polypeptide compound is fixed to the surface of a gold electrode, and through DNA hybridization reaction, a DNA-gold nanoparticle-electronic mediator nanometer signal probe is captured. When target protease exists, an arginine carboxyl site of one of polypeptides is cut by trypsin and a tyrosine carboxyl site of the other one of the polypeptides is cut by chymotrypsin so that the corresponding nanometer signal probes connected to the polypeptides are separated from the surface of the electrode and thus peak current of the corresponding electronic mediator is reduced. Therefore, the trypsin-chymotrypsin electrochemical synchronous detection method can realize synchronous detection of sensitivity and selectivity of trypsin and chymotrypsin.

The present invention relates to a b.fragilis signal molecule microbial preparation, the b.fragilis bacterium are inoculated in a culture medium for anaerobic fermentation at 35 to 38 DEG C, after that, the b.fragilis bacteria concentrate is obtained by centrifugal concentration; the bacteria cell walls are broken by high pressure; further, the bacteria concentrate is treated with enzyme hydrolysis by trypsin, chymotrypsin and pepsin, and then the preparation raw powder is obtained by solvent extraction and decompression drying. The preparation raw powder is taken as the main ingredient, and other excipients are added to prepare the oral capsules, tablets, granules, oral liquor and other preparations. The b.fragilis signal molecule product of the present invention is proven to have no acute toxicity, no influence on the times of spontaneous activity, blood pressure and respiration of the animals and can not cause the allergic reactions of the animals by animal trials. The animal trials further prove that: the product has the effects of regulating blood-lipid metabolism, reducing fat accumulation and slimming; at the same time, the present invention can improve the immunity and the anti-tumor effect by adjusting the gene expression and regulating the immune functions.

The invention discloses a method for preparing active polypeptides from deep-sea fish meat, and the method includes degreasing, first deodorization, enzymolysis, second deodorization, ultrafiltration,decolorization, desalting and freeze-drying. 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide is used to activate chitosan, and coupled with glutaraldehyde to form a lipase immobilized carrier, an active short peptide is used to improve the physical and chemical adsorption force between a carrier and lipase, the lipase stability, activity, heat resistance and use frequency are improved; through useof the complementary effect and synergistic effect of thermolysin and chymotrypsin hydrolysis sites, the protein hydrolysis degree and enzymatic hydrolysis speed of minced deep-sea fish meat can be improved, terminal group type can be changed, and the active polypeptides with antitumour activity can be obtained by hydrolysis.

The invention relates to the field of bioengineering, in particular relating to a method for extracting chymocotrypsin. In the method, CaCl2 is used for activating chymocotrypsin zymogen into chymocotrypsin while saturated (NH4)2SO4 is added, thus CaSO4 is generated to adsorb the chymocotrypsin. The complicated steps that a salting-out multiple crystallization method combined with dialysis and an organic solvent method using ethanol, acetone and the like are adopted to prepare crude chymocotrypsin and then CM-cellulose column chromatography and affinity chromatography are adopted, are not adopted for purification and preparation; and the steps of elution, salting-out, ultrafiltration and freeze-drying are directly performed to obtain white freeze-dried powder. The extraction method is simple and feasible and is suitable for industrial production; and by adopting the method, the cost can be saved and the time can be shortened from about 7-8 days to 3-4 days. 4.0-4.5g of freeze-dried chymocotrypsin powder can be prepared from one kilogram of pancreas, wherein the specific activity of the chymotrypsin is 360U./mg protein (nitrogen) and the specific activity of trypsin is 1380U./mg protein (nitrogen).