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90 results about "Histamine Releases" patented technology

Histamine release is a biological response mediated by the immune system in response to allergens and certain other triggers from the outside environment or the body itself.

Luteinizing hormone-releasing hormone (LHRH) antagonist derivative, preparation method of LHRH antagonist derivative and application of LHRH antagonist derivative

InactiveCN102675418AGood LHRH antagonist activityLow histamine releasing activityPeptide/protein ingredientsLuteinising hormone-releasing hormoneDiseaseSexual hormones
The invention belongs to the field of medicine and chemistry and particularly relates to a luteinizing hormone-releasing hormone (LHRH) antagonist derivative which is represented as formula (I), a preparation method of the LHRH antagonist derivative and application for preparation of drugs curing related sex hormone diseases or contraceptives. The invention also relates to a stereoisomeride of the LHRH antagonist derivative which is represented as the formula (I), a solvate of the LHRH antagonist derivative which is represented as the formula (I), or physio-toxicity-free salt of the LHRH antagonist derivative which is represented as the formula (I) and a pharmaceutical composition which contains compounds such as the LHRH antagonist derivative, the stereoisomeride, the solvate or the salt. An LHRH antagonist is modified with a water soluble group and a water soluble vitamin structure, the obtained LHRH antagonist derivative can maintain the activity of original antagonists, has low histamine-releasing activity and is beneficial to the clinic application and the water solubility is increased. The formula (I) is R-D-NAI-D-Cpa-D-Aaa3-Ser-Aaa5-Aaa6-Leu-Aaa8-Pro-D-Ala-B.
Owner:INST OF PHARMACOLOGY & TOXICOLOGY ACAD OF MILITARY MEDICAL SCI P L A

Viable cell analysis system for allergen screening

The invention discloses a method for fast detecting allergens, belonging to the technical field of detection. The integrated type allergen viable cell detection system integrates cell fixation, allergen irritation and histamine release and determination. The system comprises three cavities consisting of four layers of dimethyl siloxane microchips, wherein the cavities are connected respectively through a silane capillary tube, the cavity at the first layer can be connected with a flow injector or a syringe through a plurality of joints, the cavity at the second layer is an effect cell cavity, and the cavity at the third layer is a histamine reaction basin cavity. After liquid to be detected continuously and fully reacts with effect cells, a solution reaches a histamine reaction basin through a filter membrane and fully reacts with fluorescent derivatization liquid input in advance through reaction liquid injection holes, the generation condition of histamine can be judged under a fluorescent microscope according to fluorescence intensity, and further whether the reaction liquid contains allergens can be judged. The method has excellent sensitivity, fast response and direct visibility, the detection time can be remarkably shortened, the stability is high, and the method has great application potential in detection of allergens in cosmetics, food safety and clinical medicines.
Owner:TIANJIN MOSBIO SCI & TECH CO LTD
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