Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1183 results about "Immunocompetence" patented technology

Immunocompetence is the ability of the body to produce a normal immune response following exposure to an antigen. Immunocompetence is the opposite of immunodeficiency or immuno-incompetent or immuno-compromised.

Enteromorpha polysaccharide having immunocompetence and preparation method thereof

The invention discloses an enteromorpha polysaccharide having immunocompetence and a preparation method thereof. The enteromorpha polysaccharide having immunocompetence is a polysaccharide HT-II. The enteromorpha polysaccharide having immunocompetence is a white floccule, can be well dissolved in water and dimethyl sulfoxide, has relative molecular weight of 96kDa, and mainly comprises glucose and mannose, wherein a ratio of rhamnoside to xylose to mannoside to glucose is 36: 20: 6: 38. The preparation method comprises the following steps of breaking down, carrying out extraction at a temperature of 90 DEG C by water, filtrating, merging the extract, concentrating, carrying out precipitation by ethanol, removing proteins, carrying out separation and purification, and carrying out freeze drying to obtain the purified enteromorpha polysaccharide having immunocompetence. The preparation method is simple, has stable performances, a low cost and a large medical value, can reduce cholesterol content and can improve immunity. The preparation method adopts extraction, protein removal and purification processes, and scientific experimental means, is a novel method for controlling enteromorpha, and provides a novel approach for controlling enteromorpha. The preparation method of the enteromorpha polysaccharide having immunocompetence develops enteromorpha medical values and purposes, controls environmental pollution, reduces a clean-up cost, improves economic benefits and is an ideal special preparation technology for enteromorpha control and integrated utilization.
Owner:THE FIRST INST OF OCEANOGRAPHY SOA

Bovine germline D-genes and their application

The present invention relates to a bovine VDJ cassette (BF1H1) that provides the novel ability to develop chimeric immunoglobulin molecule capable of incorporating both linear T cell epitope(s) (CDR1H and CDR2H) as well as conformational B cell epitope(s) (exceptionally long CDR3H). Further, multiple epitopes can be incorporated for development of multivalent vaccine by replacing at least a portion of an immunoglobulin molecule with the desired epitope such that functional ability of both epitope(s) and parent VDJ rearrangement is retained. The antigenized immunoglobulin incorporating both T and B epitopes of interest is especially useful for development of oral vaccines for use in humans apart from other species including cattle. The long CDR3H in BF1H1 VDJ rearrangement originates from long germline D-genes. The novel bovine germline D-genes provide unique molecular genetic marker for sustaining the D-gene pool in cattle essential for immunocompetence via selective breeding. D-gene specific DNA probe permits typing and selection of breeding cattle stock for maximum gemline D gene pool for better health and disease prevention. The bovine D-genes are unique to cattle and, therefore, provide sensitive and specific forensic analytical tool using molecular biology techniques to determine tissues suspected of bovine origin.
Owner:KAUSHIK AZAD KUMAR +2

Sterile bovine colostrum whey with natural immunocompetence and preparation method and application thereof

ActiveCN103039630AAvoid sex changeAttenuation Concentration RatioWhey manufactureHollow fibre membraneFruit juice
The invention relates to sterile bovine colostrum whey with natural immunocompetence, and a preparation method and an application thereof. The preparation method comprises the steps of centrifuging bovine colostrum, removing fat to obtain defatted bovine colostrum, settling casein in the defatted bovine colostrum by an isoelectric point method or a chymosin method, obtaining whey liquid, or dissolving bovine colostrum whey powder to obtain the whey liquid, pre-filtering with a hollow fiber membrane or a ceramic membrane, removing the residual fat, casein and most thalli in the whey, conducting filtration sterilization with a polytetrafluoroethylene membrane filter, filling under a sterile condition, and obtaining the sterile bovine colostrum whey. The sterile bovine colostrum whey is degermed by a polytetrafluoroethylene degerming membrane based on pre-filtering, the handling capacity of feed liquid is increased, the service life of the membrane is prolonged, the membrane cost is saved, and the sterile bovine colostrum whey is suitable for industrial production. The content of immunoglobulin in the obtained whey is high; sterile requirements can be met; and the whey can directly serve as an immunoglobulin-rich whey product, and can also be added to beverages such as milk and fruit juice to be made into functional beverages.
Owner:HEILONGJIANG KANPURE BIOTECH

Composite chitosan and cellulose membrane and preparation method and application thereof

InactiveCN104892969ANo chemical reactionSolve the shortcomings of difficult film formationHyaluronic acid coatingsChitin coatingsWound healingImmunocompetence
The invention discloses a composite chitosan and cellulose membrane. A preparation method of the composite chitosan and cellulose membrane includes the steps of 1), precooling a cellulose solvent, adding cellulose into the precooled cellulose solvent with stirring, dissolving to obtain a cellulose solution, subjecting the obtained cellulose solution to defoaming, edulcoration, tape casting and film scraping, coagulating in coagulating bath to shape and performing water scrubbing so as to obtain a regenerated cellulose membrane; 2), dissolving chitosan in a solvent to enable the chitosan to be distributed uniformly; 3), coating a solution obtained in the step 2 on the regenerated cellulose membrane by a needle head in an electrostatic spraying manner so as to obtain the composite chitosan and cellulose membrane. The preparation method is simple, low in cost and free from toxicity and pollution, and the prepared composite chitosan and cellulose membrane is high in biocompatibility and biodegradability, good in anti-infection performance and blood coagulation effect, capable of promoting wound healing and enhancing immunocompetence and easy in functionalized expanding of application fields and can be widely applied to the fields of biological medicine, food industry and the like.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Human anti-vascular endothelial cell growth factor antibody and application thereof

The invention provides a human anti-vascular endothelial cell growth factor (VEGF) antibody as well as a coding gene and an application thereof. According to the invention, by virtue of genetic engineering means and a phage surface display technology, an anti-VEGF genetic engineering single-chain antibody is screened from a complete synthesis single-chain human antibody library, a variable region gene sequence of the anti-VEGF genetic engineering single-chain antibody is obtained, amino acids in a CDR (complementary determining region) of the anti-VEGF genetic engineering single-chain antibody are transformed by virtue of bioinformatics means, and finally a series of high-affinity anti-VEGF antibodies are obtained by constructing and screening mutation libraries and utilizing a chain exchange method, wherein affinity of the anti-VEGF antibodies with human VEGF is 10<-9>-10<-11>M. According to the invention, identification on immunocompetence and biological activity of the antibody is completed, the anti-VEGF antibody is verified to have the characteristic of being antagonistic to combination of VEGF and VEGFR2 and can effectively inhibit proliferation of vascular endothelial cells induced by VEGF. The invention provides a new specific candidate antibody molecule for resisting tumour and senile macular degeneration targeted by VEGF in future.
Owner:SHANGHAI SERUM BIOTECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products