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151 results about "Tissue inflammation" patented technology

Inflammation: A localized protective response resulting from injury or destruction of tissues. Inflammation serves to destroy, dilute, or wall off both the injurious agent and the injured tissue. In the acute phase, inflammation is characterized by the signs of pain, heat, redness, swelling, and loss of function.

Method for producing nano-fibre bracket material with levorotation polylactic acid as base material

The invention relates to a method for preparing a nanofiber bracket material using levorotatory polylactic acid as matrix. The method comprises the following steps: dissolving the levorotatory polylactic acid as the matrix in a solution of dichloromethane and dimethyl formamide, and stirring and centrifuging the mixture to obtain an electrostatic spinning solution; placing a polylactic acid solution into a 5 milliliter glass syringe, and applying high voltage on the glass syringe; advancing the levorotatory polylactic acid solution in the glass syringe; preparing the mixed solution into a nanofiber material film through a electrostatic spinning technology; and modifying the nanofiber material film to obtain the nanofiber bracket material of which the fiber diameter is between 50 and 500 nanometers and the fiber porosity is more than 90 percent. The method solves the defects that a PLLA porous bracket still has too long degradation time, and degradation products can cause tissue inflammations easily and the like. The method has the advantages of flexible texture, better water permeability and air permeability, excellent tissue compatibility, controllable biodegradability, and no antigenicity.
Owner:THE AFFILIATED DRUM TOWER HOSPITAL MEDICAL SCHOOL OF NANJING UNIV

Thermo-sensitive gelatin preparation for endometrium stem cells and preparation method and application of thermo-sensitive gelatin preparation

PendingCN110585118AInhibit inflammationOvercome the disadvantages of churnAerosol deliveryOintment deliveryCross-linkMedicine
The invention provides a thermo-sensitive gelatin preparation for endometrium stem cells. The thermo-sensitive gelatin preparation comprises an endometrium stem cell cellular preparation, an endometrium stem cell exosome preparation, chitosan, mannitol, hyaluronic acid, sodium alginate and beta-sodium glycerophosphate. The thermo-sensitive gelatin preparation is free from puncturing and recyclingand only needs to be transmitted into the lumina of an external genital system of women, the thermo-sensitive gelatin is cross-linked to form a semisolid preparation being in complete cooperation withthe shape of the lumina, the repair effect can be achieved, and repeated damage to organisms can be avoided. After being applied, the composite preparation can gradually dissolve through the temperature of human bodies to form a solution, mesenchymal stem cells in the preparation are released, and through polarization, cambium is obtained. Thermo-sensitive gelatincell factors in the preparation can be released slowly, and the defect of massive running off of the cells after recycling is performed can be overcome. The active factors secreted by the stem cells can restrain tissue inflammation,improve the regeneration capacity of tissue and promote repair of original tissue, and can achieve the effect of wound repair.
Owner:GUANGDONG CHINAHEALTH LIFE SCI CO LTD
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