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32 results about "Basophilia" patented technology

Basophilia is the condition of having greater than 100 basophils/microliter in the peripheral blood.

Whole-transcriptome expression profile of exosome, and construction method and application of whole-transcriptome expression profile

ActiveCN111172112ARealization of biological functionsCell dissociation methodsMicrobiological testing/measurementBasophiliaCell
The invention discloses a preparation method of an exosome released by activated basophil. The preparation method comprises the steps of preparing basophil from anticoagulant peripheral blood of a normal person by a negative selection method, performing activation through Anti-IgE stimulation, performing culture in an incubator containing 5% of CO2 at 37 DEG C through serum-free culture mediums for 12-48 hours, then collecting supernatant of cell culture fluid, performing centrifuging under the condition of 300g at room temperature, collecting culture fluid supernatant after the centrifuging,and performing ultracentrifugation so as to obtain the exosome released by activated basophil. The invention also discloses a whole-transcriptome expression profile of the exosome, and a constructionmethod of the whole-transcriptome expression profile. According to the preparation method disclosed by the invention, the exosome released by human basophil is successfully separated and identified for the first time, besides, the whole-transcriptome expression profile of the exosome released by the human basophil is built for the first time, a plurality of RNAs having difference expression afteractivation are identified, and a new target point is provided for further researching a molecular mechanism that the activated basophil acts with target cells during disease generation.
Owner:AFFILIATED HOSPITAL OF GUANGDONG MEDICAL UNIV

Application of nicotinamide mononucleotide and/or nicotinamide mononucleotide salt

The invention belongs to the field of research and development of drugs and health-care products, and particularly relates to an application of nicotinamide mononucleotide and / or nicotinamide mononucleotide salt. The invention provides an application of the nicotinamide mononucleotide or the nicotinamide mononucleotide salt to anti-anaphylaxis drugs and / or anti-anaphylaxis health-care products. According to the technical scheme provided by the invention, after the nicotinamide mononucleotide or the nicotinamide mononucleotide salt (NMN) is used, Treg cells can be induced to secrete immunosuppression cytokine IL10, TGF-beta and the like, so that the immune reaction of TH2, blood basophilia and tissue mast cells can be restrained, sIgE synthesis is reduced, and finally the anaphylaxis symptoms can be alleviated; and further, through experimental determination, after the NMN is used, fewer adverse reactions exist, and the anaphylaxis recurrence rate is reduced. According to the application of the nicotinamide mononucleotide and / or the nicotinamide mononucleotide salt provided by the invention, the technical defects in the prior art that anti-anaphylaxis drugs have some adverse reactions, medication needs to be repeatedly performed, and the anaphylaxis recurs easily can be overcome.
Owner:HOBOOMLIFE BIO TECH SHENZHEN CO LTD

A method for identification of basophil activation and degranulation

The invention provides a basophilic granulocyte activation and degranulation identification method. The basophilic granulocyte activation and degranulation identification method comprises the following steps that test samples are numbered in sequence, and flow type sample feeding pipes required by testing are marked; a required anti-human CD123, anti-human CCR3, anti-human HLA-DR, anti-human CD203c and / or anti-human CD63 fluorescence labeling flow type antibody combination is added into each flow type sample feeding pipe; mixed whole blood is added into the marked flow type pipes, and shading incubation is conducted at the indoor temperature; red blood cell lysate is added into each sample pipe, and shading incubation is conducted at the indoor temperature again; supernatant is removed in a centrifugal mode after incubation; detection is conducted by means of a flow cytometry, and the number of basophilic granulocytes and the average fluorescence intensity are analyzed. According to the basophilic granulocyte activation and degranulation identification method, 80%-100% of the basophilic granulocytes in peripheral blood can be distinguished from other types of cells under the condition that the basophilic granulocytes do not need to be separated or purified, the basophilic granulocyte activation and / or degranulation state can be identified, whole blood of no more than 100 microlitres is needed by each sample to be tested, and the repeatability is good.
Owner:HPY BIOTECH CO LTD
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