152 results about "Allergic reaction" patented technology

The invention provides a whey protein deep hydrolysate with low sensitization and an allergy relieving effect as well as a preparation method and application of the whey protein deep hydrolysate. According to the method, the alkaline protease, the neutral protease and the glutamyltransferase are sequentially used for carrying out first enzymolysis, second enzymolysis and third enzymolysis on the whey protein raw material, and the whey protein hydrolysate which is low in molecular weight, good in taste, good in digestion and absorption performance, low in sensitization and capable of effectively relieving allergic reaction of the organism is obtained.

The present disclosure provides methods and kits for treating or preventing an allergic reaction to a food allergen consumed by a human subject with one or more food allergies. In particular, the present disclosure provides prophylactic therapies comprising administration of an anti-IgE antibody at a specific dose to a human subject who is allergic to one or more food allergens.

The invention discloses an antibacterial breathable dressing patch and a preparation method thereof, and belongs to the field of medical dressings, the antibacterial breathable dressing patch comprises a Janus type dressing patch layer which is a composite film containing a hydrocolloid matrix, pH response antibacterial microspheres and bioactive glass nanoparticles; the super-hydrophobic electrostatic spinning outer layer is a super-hydrophobic electrostatic spinning fiber membrane, and the super-hydrophobic electrostatic spinning outer layer and the Janus type dressing skin-attaching layer are compounded to form an asymmetric Janus structure, intellectualization and precision of the antibacterial effect are achieved, and the risks of cytotoxicity and bacterial drug resistance possibly caused by long-term exposure to an antibacterial agent are reduced to the maximum extent; a multi-mechanism and synergistic antibacterial defense system is constructed, more comprehensive and firm protection is provided for wounds, the air permeability and moisture permeability are excellent, a dry and moist ideal healing environment is created for the wounds, the biocompatibility is good, the use safety is high, the wound healing agent is mild to human tissues, the irritation is low, the allergic reaction risk is small, the safety is high, and the wound healing effect is good. The long-term use is facilitated.

The invention relates to the technical field of atlas generation, in particular to a children cross-allergen risk dynamic atlas generation system, which comprises the following steps: firstly, determining sensitivity indexes according to immune response conditions of each type of allergens in all allergy detection processes; according to the similarity of each allergen and other allergens in two dimensions of allergen protein structure and IgE level, combining the sensitivity index, and comprehensively representing the cross reaction risk index of each allergen in each allergy detection process; then comprehensively determining the cross-allergy risk degree of various allergens in each season period according to the increasing trend of the cross-allergy risk index curve in each season period and the overall size of the cross-allergy risk index in combination with the characteristic that the cross-allergy reaction possibly caused by the season change is dynamically changed; and the cross allergen risk dynamic map generated in real time according to the cross allergen risk degree is more accurate.

The invention relates to the technical field of synthetic biology, in particular to polypeptide with a triple helix structure, recombinant XII type humanized collagen and application of the recombinant XII type humanized collagen. The recombinant XII type humanized collagen is successfully expressed and prepared, has a triple-helix structure and good biological activity including promotion of cell proliferation activity, cell adhesion activity and inhibition of MMP-1, is used as a biological material derived from a human body, does not generate immunological rejection and anaphylactic reaction when applied to the human body, and has a good application prospect. The composition can be used for medical or non-medical application of a plurality of tissues and organs of a human body, filling, compatibilizing or repairing, and promotion of skin compactness or wrinkle resistance and other scenes.

The invention relates to the technical field of rhinitis spray preparation, in particular to a method for preparing allergic rhinitis spray from umbilical cord mesenchymal stem cell exosomes, which comprises the following steps: 1, umbilical cord treatment; 2, culturing umbilical cord mesenchymal stem cells; 3, preparing an umbilical cord mesenchymal stem cell exosome; and 4, preparing the rhinitis spray. The rhinitis spray prepared by the method disclosed by the invention is simpler and more convenient to use. The exosome, the platelet growth factor and other substances in the rhinitis spray well solve the core problems of single curative effect, large side effect, low compliance and the like in the traditional rhinitis treatment, and through the induction and repair functions of the stem cell exosome and the bactericidal ability of the antibacterial peptide, the nasal cavity environment is improved, the anaphylactic reaction is reduced, the nasal mucosa is repaired, and the rhinitis treatment effect is improved. The allergic rhinitis is expected to be fundamentally treated.

The invention discloses a biological patch material with dry-state adhesion and wet-state easy stripping characteristics and application thereof, and belongs to the field of biological medicine. The biological patch material is prepared according to the following steps: by taking water-soluble protein as a template and copper ions in water-soluble copper salt as a metal coordination center, carrying out self-assembly on the template and drug molecules with phenolic hydroxyl structures to form nanoflowers; mixing the acrylamide, the sodium alginate, the water-soluble calcium salt and the nano-flowers to obtain the water-soluble calcium-based water-soluble nano-flower fertilizer. The biological patch material is adhered to the skin through electrostatic interaction, covalent bonds, physical interpenetration and topological tissues. The patch has skin adhesion in a dry state, so that the patch is convenient to fix; after the patch is in contact with burnt skin, the patch absorbs water and swells, the adhesive force is obviously reduced, and painless, easy and non-invasive stripping is realized. In addition, the patch has immunoregulation performance, can prevent stimulation and anaphylaxis caused by long-term contact with the skin, and promotes burn repair.

A prosthetic heart valve for the treatment of structural heart disease wherein the prosthetic heart valve includes an expandable frame that a) has an open cell geometry in the frame of the prosthetic heart valve that can be used to reduce delivery system size, b) has high radial strength, c) has improved restoration of the physiologic EOA, d) has lower recoil, e) has little or no longitudinal foreshortening, f) allows for proper placement of the bioprosthetic valve in relation to the native commissures of the valve, h) has symmetrical and cylindrical expansion of the prosthetic valve resulting in lower rates of leaflet thrombosis and structural valve deterioration, and / or i) prevents allergic response and restenosis associated with nickel content.

The invention discloses a method for establishing indirect ELISA (enzyme-linked immunosorbent assay) for detecting mycobacterium bovis Lprl, which comprises the following steps: preparing mycobacterium bovis Lprl protein, taking the purified protein as an antigen, and determining conditions such as optimal antigen coating concentration, serum dilution, serum incubation time, secondary antibody dilution concentration, incubation time and the like. The established indirect ELISA detection method does not have cross reaction with other bovine pathogens, the specificity is good, the detection accuracy is high, and the total coincidence rate of test results of intradermal allergy with bovine tubercle bacillus is 95.8%; the intra-batch variation coefficient of the detected samples is 2.43%-3.61%, the inter-batch variation coefficient is 2.83%-3.96%, and the intra-batch variation coefficient and the inter-batch variation coefficient are both smaller than 10%. A new diagnosis target is developed, the established indirect ELISA method has the characteristics of high sensitivity, strong specificity, good repeatability and the like, the operation is easy, and a new method is provided for the detection work of the mycobacterium bovis.

The invention relates to the field of antibodies, in particular to an anti-Der p 1 antibody and application thereof. The invention provides an anti-Der p 1 antibody, the anti-Der p 1 antibody comprises a heavy chain variable region and a light chain variable region, the heavy chain variable region comprises an amino acid sequence of a complementarity determining region, and the amino acid sequence of the complementarity determining region comprises CDR1 as shown in SEQ ID No.1, CDR2 as shown in SEQ ID No.2 and CDR3 as shown in SEQ ID No.3; or the amino acid sequence of the heavy chain variable region is as shown in SEQ ID No.8. The anti-Der p1 antibody provided by the invention is a monoclonal antibody with high affinity and high sensitivity, after the monoclonal antibody is subjected to humanized IgE transformation, the monoclonal antibody is applied to a Dermatophagoides pteronyssinus allergen component Derp1 specificity IgE magnetic particle chemiluminescence quantitative detection reagent, and a standard curve independently calibrated by the Dermatophagoides pteronyssinus allergen component Derp1 can be obtained; real, accurate and repeatable absolute quantification is realized, the Dermatophagoides pteronyssinus allergen component Derp 1 specificity IgE with the concentration of 0.1 IU / mL can be detected, and the method has clinical diagnosis significance in allergic reaction identification.

System for recording data on allergic reactions of a vehicle occupant, comprising a recording and / or storage device (5, 30) by means of which pollen in the area of ​​the vehicle (1) can be recorded and / or stored, wherein the recording and / or storage device (5, 30) has an electrically controllable pollen inlet (34) with which the pollen recording can be controlled.

The invention relates to a method for depleting mast cells. The invention also relates to a method of treating mast cell disease in a subject in need thereof. The method involves administering an anti-mast cell antibody wherein the antibody is administered by a slow absorption delivery pathway, in particular wherein the antibody is administered subcutaneously. Administration of anti-mast cell antibodies via a slow absorption delivery pathway (e.g., subcutaneous or intradermal) can avoid allergic reactions occurring when anti-mast cell antibodies are administered via other pathways (e.g., intravenous).

The utility model discloses a kind of flexible fixed physiotherapy electrode sheet, including electrode sheet, fixing device and conductive layer, wherein, electrode sheet surface is covered with micro-adhesion coating, and the edge of electrode sheet is provided with telescopic elastic frame;The center contact area of electrode sheet is embedded with micro pressure sensor, and pressure sensor can transmit data to connected equipment;Fixing device includes fixed component, wherein, fixed component is respectively arranged at the two ends of electrode sheet, and fixed component has elasticity and both ends are movably connected;Conductive layer is located at the side of electrode sheet and skin contact. Therefore, it has good conductivity, can ensure the effectiveness of electrical stimulation treatment, the design of flexible fixing device makes that electrode sheet can adapt to the curve of different body parts, the application of micro pressure sensor makes that electrode sheet can monitor the contact pressure with skin in real time, provides basis for adjusting treatment parameters, and the anti-allergic protective layer prevents the allergic reaction of patient in use process.

The invention discloses a medical biological dressing suppository matrix and a preparation method thereof, and relates to the technical field of suppositories, the medical biological dressing suppository matrix is prepared by taking gelatin, glycerol, polyethylene glycol derivatives and chitosan quaternary ammonium salt as raw materials, the biocompatibility of the suppository matrix is good, and stimulation and anaphylactic reaction cannot be generated on a medication cavity; and after the suppository matrix is dissolved in the cavity, a film with good adhesion can be formed on the mucous membrane of the cavity, so that the released medicine is fully contacted with the focus for a long time, the curative effect and bioavailability of the medicine are improved, and the suppository is suitable for preparing suppositories for treating gynecological diseases, anorectal diseases and prostate diseases.

The present invention relates to skin adhesive formulations. The skin adhesive formulations of the present invention may be useful in wound-closing applications and other medical applications. Ideally the skin adhesive formulations of the present invention exhibit higher viscosity than known skin adhesive formulations. Ideally the skin adhesive formulations of the present invention cause fewer allergic reactions and skin irritation issues in patients relative to known skin adhesives. Ideally the skin adhesive formulations are UV curable in the visible range of 400-500nm rather than moisture cure.

This invention discloses a cobalt-chromium-molybdenum knee joint prosthesis with a nano-TiN coating and its preparation method. The prosthesis includes a cobalt-chromium-molybdenum alloy knee joint prosthesis substrate, the surface of which is coated with a nano-TiN coating. The nano-TiN coating is doped with Cu element at a doping amount of 1.0-1.5 at.%. The nano-TiN coating has a Vickers hardness of 3400 HV, a surface roughness Ra≤0.05μm after polishing, and a friction coefficient of 0.23. The nano-TiN coating of this invention has a hardness of 3400 HV, which is much higher than that of traditional TiN and TiNbN coatings. After mirror polishing, the coefficient of friction is as low as 0.23, significantly reducing the wear rate and the release of metal ions, thus increasing the service life of the prosthesis by 30%. At the same time, the coating completely covers the cobalt-chromium-molybdenum alloy knee joint prosthesis substrate, effectively blocking the release of Co and Cr metal ions, eliminating postoperative metal allergic reactions, and making it suitable for patients with allergies. Moreover, the 1.0-1.5 at.% Cu doping makes the coating antibacterial rate ≥95%, reducing the postoperative infection rate to below 0.7%, which is far lower than the 2.3% of traditional TiN coatings.

The invention relates to the technical field of microorganisms, in particular to a yeast metagen with an anti-allergic effect as well as a preparation method and application of the yeast metagen. According to the invention, the metabolite is an inactivated saccharomyces boulardii strain and a fermentation metabolite thereof, wherein the preservation number of the saccharomyces boulardii strain is CCTCC (China Center for Type Culture Collection) NO: M 20251803. The metagen can be used for remarkably reducing the total IgE (Immunoglobulin E) level of serum and relieving anaphylactic reaction by adjusting the balance of Th1 / Th2, Th17 and Treg immune cells. Therefore, the metabiotics disclosed by the invention have a wide application prospect in preparation of foods, medicines or health-care products for relieving allergic symptoms.

The invention relates to application of extracellular vesicles in antibacterial yoga clothes, the application comprises that the extracellular vesicles are micro-fixed on the surface layer of yoga clothes fabric through a padding method or a spraying method, and the problems that chemical antibacterial agents (silver ions, graphene and the like) of existing yoga clothes are high in cost and large in skin irritation, and environment / health risks exist are solved. The extracellular vesicles are slightly fixed on the surface layer of the yoga clothes fabric through a padding method or a spraying method, and the extracellular vesicles can inhibit biological membranes formed by pathogenic bacteria such as staphylococcus aureus and escherichia coli on the surface layer of the yoga clothes fabric by interfering pathogenic bacteria quorum sensing. The fabric has the advantages that peculiar smell substances such as sulfides and fatty acid volatile substances generated by metabolism of bacteria in a sweat wet environment are reduced from the source, fabric peculiar smell control is achieved, compared with chemical antibacterial agents such as silver ions and graphene, biotoxicity risks and environmental accumulation hidden dangers are avoided, anaphylactic reactions caused by long-term contact between yoga clothes and skin can be remarkably reduced, and wearing safety is improved.

This invention provides a novel application of IdeS, which is used to prepare products addressing photoaging of the skin. These products include skincare products and pharmaceuticals for the prevention and / or treatment of photoaging. The pharmaceuticals are in the form of ointments, and the skincare products are used as adjunct treatments for preventing and treating photoaging. IdeS treatment significantly improves the extensive erythema, wrinkles, desquamation, inflammation, and thickened stratum corneum observed in photoaging model mice. It has been developed as a novel biological therapeutic drug with strong pharmacological effects, few side effects, and avoidance of allergic reactions, thus providing a basis for the clinical treatment of photoaging and photodamage.

The present invention relates to a pharmaceutical composition for preventing, suppressing, or treating a symptom associated with a pseudo-allergic reaction, the pharmaceutical composition including a compound having a P2X4 receptor antagonizing action or a pharmaceutically acceptable salt thereof as an active ingredient.

The formulation is an antibacterial and antifungal ointment which comprises of oil of Raphanus sativa seeds, white wax and white petroleum jelly. The ointment acts as a potent antibacterial and antifungal agent and is especially effective against dermatophytes. In clinical trials the ointment was found to be effective, well tolerated and free from irritative and allergic reactions.

The invention discloses a composition with effects of removing pouches and dark circles, eye oil cream and a preparation method of the eye oil cream, and belongs to the technical field of cosmetics. The composition provided by the invention comprises the following components: oil-soluble caffeine, Italian permanent flower and 3C elastin peptide. All the components of the composition can effectively improve the problems of pouches and dark circles through a synergistic effect. The transparent water-in-oil type eye oil cream prepared by the method can meet the barrier requirement of fragile skin of eyes, the stability and permeability of active ingredients are improved, and the eye oil cream is light and not greasy in use and meets the daily make-up requirement. Meanwhile, the preparation methods of the composition and the eye oil cream are simple and easy to implement, and mass production can be realized; the formula does not contain components harmful to a human body, is non-irritant to skin, does not cause anaphylactic reaction, and is a safe and effective product for removing under-eye puffiness and dark eye circles.

The invention discloses a luminescent cell for rapidly detecting drug allergy and / or anaphylactoid reaction as well as a construction method and application of the luminescent cell, and relates to the technical field of biology. The construction method comprises the following steps: transforming myeloid related cells by using a recombinant vector containing a marker gene and an HHEXA gene promoter to obtain recombinant cells; the recombinant cell is the luminescent cell. According to the invention, the HHEXA gene promoter and the marker gene are recombined and then transferred into myeloid related cells, and the occurrence of the allergy or anaphylactoid reaction can be intuitively reflected through a marker signal by utilizing the specific activation characteristic of the HHEXA gene in the allergy / anaphylactoid reaction. The luminescent cell has good stability, is suitable for multiple scenes such as drug allergy, anaphylactoid risk assessment, environmental sample analysis and the like, provides an efficient, sensitive and convenient technical tool for clinical rapid diagnosis, new drug research and development and scientific research and exploration, and can significantly reduce the detection cost and the operation threshold.

The invention discloses a bacteriostatic and anti-inflammatory polypeptide extract and application thereof in a Yao bath. The polypeptide extract is extracted from rhizomes of Coptis chinensis (Coptis chinensis Franch.), and is obtained through extraction with a phosphate buffer solution, ultrafiltration and gel chromatography purification, and the polypeptide is as shown in SEQ ID No: 1. Experiments show that the polypeptide extract has significant bacteriostatic activity on pathogenic bacteria such as escherichia coli, shows a dose-dependent anti-inflammatory effect in an RAW264.7 cell model, can effectively inhibit NO release, and has a cell survival rate of 92% or more and excellent biological safety. The polypeptide extract is applied to a Yao bath preparation, O / W type emulsion is prepared, 10 volunteers try on the Yao bath preparation, the improvement rate on mild skin inflammation symptoms (such as red and swollen and pruritus) reaches 87%, and anaphylactic reaction is avoided. The polypeptide extract is simple in preparation process and high in activity, and has a wide application prospect in the fields of cosmetics and medicines.

The present invention relates to a composition comprising human milk oligosaccharides for use in infants or young children for the prevention or treatment of allergies, said composition comprising at least one fucosylated oligosaccharide and at least one N-acetylated oligosaccharide, the invention relates to a composition for preventing and / or treating allergy symptoms in an infant or a young child by increasing propionate production in the body of the infant or the young child.

Methods for treating a subject having an IgE-mediated allergy or for preventing or reducing the severity of an allergic reaction in a subject having an IgE-mediated allergy are provided. In one aspect, the methods comprise administering to a subject having an IgE-mediated allergy an IL-4R antagonist, such as an IL-4Rα antibody, and a BCMA targeting agent, such as a BCMA x CD3 bispecific antibody.

The present disclosure provides a recombinant humanized collagen VIII, which is a triple helix structure, has good cell adhesion activity, and is applied to human body without immune rejection and allergic reaction.

The present invention relates to an antibody fragment consisting of only the constant region of an antibody, and more particularly to an antibody fragment having no variable region of an antibody and consisting of only a heavy chain constant region (C H ) and a light chain constant region (C L ). For example, the present invention relates to an antibody fragment consisting of a heavy chain constant region and a light chain constant region (IgCw-gamma1epsilon2-4 / kappa), in which a gamma constant region (Cgamma1) and an epsilon constant region (Cepsilon2-4) are fused; a nucleic acid encoding the antibody fragment; a kit comprising the antibody fragment; and a use of the antibody fragment. In order to evaluate the efficacy of an antibody in the development of a new antibody drug or the like, a control, i.e., a reference antibody, is required, and the existing reference antibody cannot be completely free from non-specific binding, i.e., off-target effects due to reactions with other antigens, and the purification yield is also low. On the other hand, when the recombinant protein IgCw-gamma1epsilon2-4 / kappa consisting of only the constant region of an antibody according to the present invention is used, the problems of the existing reference antibody can be overcome, and the recombinant protein can also be used as an Fc epsilon receptor inhibitor that inhibits an allergic reaction. Therefore, the IgCw-gamma1epsilon 2‑4 / kappa according to the present invention can be used in various ways in the field of biomedical science.

The application discloses a catheter protection device and relates to the technical field of medical devices, which comprises an arc-shaped plate, connecting round rods, magic tapes, soft wheels and a fixing assembly, the arc-shaped plate is fixedly connected with the symmetrically arranged connecting round rods, one of the symmetrically arranged connecting round rods is uniformly fixedly connected with the magic tapes, the magic tapes pass around the other connecting round rod, and the arc-shaped plate is uniformly and intervally rotationally connected with the soft wheels. The arc-shaped plate is fixed on the thigh of a patient by the magic tapes, and then the catheter is fixed by side pressing plates and a large pressing plate. In this way, the catheter does not need to be fixed by adhesive tapes, the patient can avoid allergic reactions to the glue of the adhesive tapes, the adhesive tapes can avoid falling off due to the body fluid of the patient, and thus the fixing effect on the catheter is affected.

The invention discloses an immunosuppressant transdermal patch and a preparation method thereof, the transdermal patch is provided with a backing layer, an ointment-containing body and a protective layer, the backing layer is a polyester and ethylene-vinyl acetate copolymer film, the ointment-containing body is formed by mixing a main drug tacrolimus, a stabilizer, a matrix, a cross-linking agent and a pressure-sensitive adhesive, and the protective layer is a polyester and ethylene-vinyl acetate copolymer film. The protective layer is a polyethylene glycol terephthalate film, the protective layer is coated with the ointment-containing body, and then the backing layer is pressed and covered on the surface of the ointment-containing body. The immunosuppressant transdermal patch provided by the invention can be adhered to parts such as neck, shoulder, chest, arm memory and the like, can be freely adjusted in use duration according to different illness states, and is safe and free of toxic and side effects. In addition, the transdermal patch disclosed by the invention is good in stickiness, good in permeability, free of irritation and allergy phenomena, good in patient compliance and capable of being used for a long time. Meanwhile, the method has the advantages of low preparation cost, simple and reasonable preparation process and the like, and has wide application prospects.