Posts by chelseaclark

1. 2017-04-18 at 3:20 AM UTC in t-test in biological field
   chelseaclark Yung Blood
   A t-test is a statistical hypothesis test in which the test statistic obeys a Student's t-distribution under the null hypothesis. It can be used to test whether two datasets are significantly different from each other. A t-test is mostly applied when the values of a scaling term in the test statistic are known and follow a random distribution pattern. When the scaling term is unknown and is replaced by an estimate according to the data, the test statistics (under some conditions) follow a Student's t distribution.
   More: http://www.creative-proteomics.com/services/t-test-analysis-service.htm
2. 2017-04-14 at 3:56 AM UTC in glycan analysis of therapeutic glycoproteins
   chelseaclark Yung Blood
   Glycan functions are usually determined by the structures of the oligosaccharides, which are covalently attached to proteins primarily at 2 structural motifs: the amide group of an asparagine (N-glycans) or the hydroxyl group on serine or threonine (O-glycans). Because of the diversity of the oligosaccharides, even glycosylation at a single site can generate considerable heterogeneity of the mass and charge of glycoproteins. Although different approaches for N-glycans analysis have been described, usually these methods are based on enzymatic release of N-glycans from the protein by PNGase F, and derivation of released glycans, due to the lack of intrinsic chromophores, with a fluorescent labelling before analysis.
   http://www.creative-proteomics.com/application/n-glycan-analysis.htm
3. 2017-04-12 at 3:51 AM UTC in More information about hydroxyeicosatetraenoic acids hetes
   chelseaclark Yung Blood
   Arachidonic acid is known to be oxidized by several enzymatic pathways including prostaglandin H2 synthase, 5-lipoxygenase, and cytochrome P-450 dependent epoxygenase reactions. These enzymatic pathways require free arachidonic acid as substrate and result in a host of biologically active lipid mediators including prostaglandins, thromboxanes, leukotrienes, and epoxyeicosatetraenoic acids. The major arachidonic acid metabolites in blood and blood vessels are Hydroxyeicosatetraenoic acids (HETEs). HETEs have been implicated in physiologic responses such as aggregation, cell migration, and cell proliferation. http://www.creative-proteomics.com/services/hydroxy-eicosatetraenoic-acids-hetes-analysis-service.htm
4. 2017-04-06 at 6:12 AM UTC in Some detailed information about glycerolipids analysis service process
   chelseaclark Yung Blood
   There are some detailed information about glycerolipids analysis service process attached on this website. It is helpful in some of your projects.
   http://www.creative-proteomics.com/services/glycerolipids-analysis-service.htm
5. 2017-02-13 at 4:15 AM UTC in What are human ocular primary cells?
   chelseaclark Yung Blood
   Human Ocular Choroid Fibroblasts (HOCF) from Creative Bioarray are isolated from human ocular choroid tissue. HOCF are cryopreserved at primary culture. Each vial contains >5 x 10^5 cells in 1 ml volume. HOCF are characterized by their spindle morphology and immunofluorescent method with antibody to fibronectin. HOCF are negative for HIV-1, HBV, HCV, mycoplasma, bacteria, yeast and fungi.
   
   More reference: http://www.creative-bioarray.com/Human-Ocular-Choroid-Fibroblasts-HOCF-CSC-7748W-item-1803.htm