4 results about "Progeria" patented technology

The application discloses a method for purifying and chromatographing and mass spectrometrically identifying deoxyguanosine or 3-hydroxybenzoic acid and application. After metabolites are extracted by a methanol method, UPLC-MS / MS-ultra high performance liquid chromatography and ABSCIEX QTRAP 5500 triple quadrupole tandem linear ion trap mass spectrometry are used to distinguish the metabolites by using liquid chromatography and mass spectrometry. The MS technology provides the ability to detect and quantify a large number of metabolites. The method optimizes the purification and mass spectrometric identification of the progeria markers in blood, identifies the structures of the differential markers deoxyguanosine and 3-hydroxybenzoic acid in blood by using the mass spectrometric method, and distinguishes the difficult-to-distinguish differential markers. The method for purifying and mass spectrometrically identifying the progeria differential markers in blood is simple and easy to operate, has small experimental dosage, good stability, is fast and accurate, and can make up for the deficiency in searching for the blood differential markers.

The application discloses a gene editing system for constructing a progeria model pig nuclear transfer donor cell with a ZMPSTE24 gene mutation and application thereof. The application provides a kit comprising ZMPSTE24-gRNA2 shown in SEQ ID NO: 16, ZMPSTE24-gRNA4 shown in SEQ ID NO: 17 and NCN protein. The application also provides a method for preparing a recombinant pig cell: co-transfecting ZMPSTE24-gRNA2, ZMPSTE24-gRNA4 and NCN protein into a pig cell to obtain a recombinant pig cell. The recombinant pig cell is a recombinant cell with a ZMPSTE24 gene mutation. The kit is used for: preparing a recombinant pig cell; preparing a progeria model pig; preparing a progeria cell model or a progeria tissue model or a progeria organ model. The application has great application value for the research and development of progeria drugs and the revelation of the pathogenesis of the disease.

The present disclosure relates to vectors, compositions, pharmaceutical compositions and kits providing brain cell-specific expression of reprogramming genes, such as Yamanaka factors Oct4, Sox2, Klf4 and c-Myc (OSKM). Methods and uses including the same for treating Alzheimer's disease and progeria by brain cell-specific expression of reprogramming genes, such as OSKM, are also provided.

The application discloses a polypeptide UPCP and application thereof in preparation of anti-aging products. The polypeptide UPCP provided by the application has an amino acid sequence of sequence 4 in the sequence list. The polypeptide is applied in preparation of products with any one of the following functions: 1) treating children's premature aging; 2) delaying physiological aging of mammals or cells thereof; 3) improving premature aging of mammals; the improvement of premature aging of mammals is embodied in delaying premature aging of mammals; 4) improving body weight of premature aging animals; the improvement of body weight of premature aging animals is embodied in increasing body weight of premature aging animals; 5) relieving motor dysfunction of premature aging animals; 6) prolonging survival period of premature aging animals, etc. The application develops a specific peptide (UPCP) which can inhibit HGPS cell aging, improve aging characteristics of HGPS premature aging mice and prolong survival period, and provides a new strategy for treatment of HGPS.