摘要:
The invention relates to a device and a system for in-vivo detection of a biomarker in the gastrointestinal tract. The invention further relates to a method for the in-vivo detection of a biomarker in the gastrointestinal tract such as e.g., the α1-antitrypsin precursor (A1AT biomarker), by using the recognition factor, e.g., trypsin immobilized to a solid surface. The invention further relates to a kit for the in-vivo detection of a biomarker in the gastrointestinal system.
摘要:
A device for in-vivo detection comprises a housing having an optical window and enclosing an imager that is configured to image the optical window. An external surface of the optical window has trypsin immobilized thereon, and may also be coated with a steric barrier protection, which may be polyethylene glycol (PEG). A trypsin-Alpha-1-antitrypsin complex formed on the window may have an affinity to a binding agent, which is tagged by a tag selected from a group consisting of a colorant, a fluorescent moiety, and a radioactive moiety.
摘要:
The invention relates to synchronous drug delivery composition comprising a polymeric matrix which comprises hydrogel blended with a hydrophobic polymer, so as to form an erodible matrix, a drug, and, optionally, an agent which enhances intestinal drug absorption and/or an agent which inhibits intestinal drug degradation,wherein erosion of the erodible matrix, permits synchronous release of the drug, the hydrogel and the intestinal drug absorption agent and/or the agent which inhibits intestinal drug degradation.
摘要:
The present invention discloses composites which generally comprise a polymeric matrix and a hydrophobic organic compound which is associated with a radioisotope. The composites are biocompatible and biodegradable hydrogels suitable for use in internal local radiation therapy
摘要:
A colonic delivery system for delivering a drug to the colon is provided. The system comprises a drug in combination with a matrix, wherein the matrix comprises a saccharide-containing polymer. According to the invention, the matrix is resistant to chemical and enzymatic degradation in the stomach and small intestine. The matrix is degraded in the colon by bacterial enzymatic action, and the drug is released. The system is useful for targeting drugs to the colon in order to treat colonic disease. The system is also useful for enteric administration of drugs such as proteins and peptides which are otherwise degraded in the stomach and small intestine.
摘要:
The present invention relates to a controlled release drug delivery system comprising a drug which is susceptible to enzymatic degradation by enzymes present in the intestinal tract; and a polymeric matrix which undergoes erosion in the gastrointestinal tract comprising a hydrogel-forming polymer selected from the group consisting of (a) polymers which are themselves capable of enhancing absorption of said drug across the intestinal mucosal tissues and of inbihiting degradation of said drug by intestinal enzymes; and (b) polymers which are not themselves capable of enhancing absorption of said drug across the intestinal mucosal tissues and of inhibiting degradation of said drug by intestinal enzymes; wherein when the matrix comprises a polymer belonging to group (b) the delivery system further comprises an agent which enhances absorption of said drug across the intestinal mucosal tissues and/or an agent which inhibits degradation of said drug by intestinal enzymes and when the matrix comprises a polymer belonging to group (a) the delivery system optionally further comprises an agent which enhances absorption of said drug across the intestinal mucosal tissues and/or an agent which inhibits degradation of said drug by intestinal enzymes.
摘要:
The present invention is based on the use of electrical surface charge as a docking tool to bring charged lipid assemblies in the vicinity of a diseased, e.g. inflamed epithelium of the mucosa, or alternatively, to a normal epithelium, for executing a desired medical procedure. Thus, the present invention provides a method for selecting a medicament for a medical procedure has now been designed. The medical procedure is selected from treatment, for the healing of a disease or disorder of a mucosa, prophylaxis of a disease or disorder or a mucosa, or a combination of same. The method steps are based on the observation that there are differences in the attachment properties of charged lipid assemblies, such as liposomes, when examined in healthy or inflamed mucosal tissues. The invention also provides a kit making use of the method of the invention. Yet, the invention concerns a method and a medicament for the treatment or prevention of a disease or disorder of the gastrointestinal mucosa, as well as the use of charged lipid assemblies for obtaining said medicament, based on the principles of the differential adhesion of positively vs. negatively charged lipid assemblies to healthy and diseased mucosa, respectively.
摘要:
A colonic delivery system for delivering a drug to the colon is provided. The system comprises a drug in combination with a matrix, wherein the matrix comprises a saccharide-containing polymer. According to the invention, the matrix is resistant to chemical and enzymatic degradation in the stomach and small intestine. The matrix is degraded in the colon by bacterial enzymatic action, and the drug is released. The system is useful for targeting drugs to the colon in order to treat colonic disease. The system is also useful for enteric administration of drugs such as proteins and peptides which are otherwise degraded in the stomach and small intestine.