摘要:
Methods and compositions for producing a cellular drug release are disclosed. The method comprises: a) providing a composition comprising a therapeutically effective amount of a pharmacological agent adsorbed onto mesoporous hydroxyapatite (HAP) with hydrophobic surfaces; b) exposing the composition to a cell; c) causing entry of the mesoporous HAP into the cell and degradation of the HAP in the lysosomes of the cell and desorption of the agent from the mesoporous HAP; d) causing release of the desorbed agent from the lysosomes into the cytoplasm of the cell; and e) causing release of the desorbed agent to outside the cell. The composition comprises a) mesoporous HAP with hydrophobic surfaces; and b) a therapeutically effective amount of a pharmacological agent, adsorbed onto the hydrophobic surfaces of the mesoporous. HAP. The composition is characterized in that it constantly releases the agent in vivo for a period of at least 4 weeks.
摘要:
A method of preparing magnetic bead type nasopharyngeal enzyme immunoassay reagents by polymerase chain reaction according to this invention offers in-vitro diagnostic reagents by means of utilizing nanotechnology. This method uses magnetic beads to coat EBV nuclear antigen (Epstein-Barr virus nuclear antigen, EBNA1) or early antigen (Early Antigen, EA). The use of polymerase chain reaction (polymerase Chain Reaction PCR) is for amplified detection. It is found that positive controls of different concentrations, after amplified by PCR, change in their brightness and concentration. That reveals the EBV antigens on the magnetic beads can specifically detect IgA antigens in the serum.
摘要:
An implant containing a collagen matrix embedded with chondrocyte-like cells, its use in repairing a chondral defect, and a method of preparing the implant.
摘要:
A pharmaceutical composition for inhibiting inflammation, comprising (a) hyaluronic acid, (b) a 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor, and (c) a pharmaceutically acceptable carrier, is provided. Also provided is a method for inhibiting inflammation in a mammal, comprising administrating to the mammal an effective amount of a composition comprising (a) hyaluronic acid and (b) an HMG-CoA reductase inhibitor.
摘要:
A non-alcohol mouthwash composition without chemical antibacterial medicament is disclosed. The non-alcohol mouthwash composition includes from 0.03% to 1.5% of γ-polyglutamic acid (γ-PGA) and from 0.5% to 4% of surfactant, all percentages based on the total weight of the mouthwash composition. The non-alcohol mouthwash composition preferably includes from 0.4% to 1.5% by weight, or more preferably from 0.8% to 1.3% by weight, of γ-PGA. Containing no chemical antibacterial medicament, the non-alcohol mouthwash composition can effectively inhibit bacterial growth in the oral cavity without irritating the oral mucosa.
摘要:
A pharmaceutical composition for inhibiting inflammation is provided. The pharmaceutical composition comprises (a) hyaluronic acid, (b) a vitamin and (c) a pharmaceutically acceptable carrier.
摘要:
The present invention provides a biocompatible bilayer porous matrix and preparation thereof. The bilayer porous matrix is composed of gelatin, chondroitin 6 sulfate, and hyaluronic acid, also, prepared through freeze-drying technique at different temperature and time duration to form varied pore sizes on each layer. The present invention also provides a method of cell culture using the bilayer porous matrix.
摘要:
A method for preparing porous bioceramic bone substitute materials is disclosed, which includes the following steps: (a) providing a cancellous bone of animals, (b) removing organic substances in the cancellous bone by thermal processing to obtain de-organic cancellous bone, (c) soaking the de-organic cancellous bone in a solution of phosphate salts, and (d) obtaining the porous bioceramic materials by sintering between 600 to 900° C. The porous bioceramic bone substitute materials of the present invention are suitable for use as filling materials of bone defect.
摘要:
A biphasic cement of &agr;-TCP/HAP is primarily composed of 30-60 wt % &agr;-tricalcium phosphate (Ca3(PO4)2, &agr;-TCP) and 40-70 wt % of hydroxyapatite (Ca10(PO4)6(OH)2, HAP). The biphasic cement of &agr;-TCP/HAP of the present invention is superior since it can set rapidly while soaking in a water solution. The present invention also provides a process for preparing the biphasic cement of &agr;-TCP/HAP, in which the composition of the biphasic cement of &agr;-TCP/HAP can be controlled.
摘要:
A composition comprising a polymer that comprises oxidated hyaluronic acid cross-linked by a dihydrazide is disclosed. The polymer is a hydrogel exhibiting the following properties: a) transparent and colorless; and b) transforming from a liquid state into a gel-matrix at 37° C. These characteristics make it useful as a vitreous humor substitute.