Lyophosome™-Natural Phosphatidylserine (PS) extract catalog is composed of four liposomes made from phosphatidylserine (PS) lipids that are made from natural lipids that are extracted from either brain or soybean. Adding 30% cholesterol makes the liposomes serum stable and is necessary when the liposomes are used in the presence of serum.
These liposomes are all anionic due to the negative charge of phosphatidylserine.
Brain phosphatidylserine (PS) is composed of both saturated and unsaturated lipids. Brain PS contains much larger percentage of saturated lipids compare to Soy PS. Brain PS is mainly composed of four lipids: 42% of 18:0 lipid, 30% of 18:1 lipid, 2% of 20:4 lipid and 11% of 22:6 lipid.
Soy PS is composed of both saturated and unsaturated lipids. Soy PS contains more unsaturated lipids. Soy PC is mainly composed of 5 lipids: 10% of 16:0 lipid, 3% of 18:0 lipid, 12% of 18:1 lipid, 68% of 18:2 lipid, and 7% of 18:3 lipid.
Lyophosome™ product catalog is composed of a large selection of freeze-dried liposomes with various types of lipids and wide range of zeta potentials and different properties. Lyophosome™ products should be used by scientists who understand liposome formulation and have the proper equipment to check the size, separate non-encapsulated drugs and do the proper assays. Freeze-dried liposomes cannot be used blindly.
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加尾法是采用加A酶先对mirna进行加尾,然后再用带oligodt的引物反转录,他的反转录引物是通用的,一次反转录可以获得所有miRNA的cdna,效率高。茎环法是采用特异性反转录引物序列+颈环结构作为反转录引物进行反转录的,一次反转录只能获得一种mirna的cdna,可能有几种一起反转录的,这个我不太清楚一起反转录的效果。然后茎环法的经典即ABI的探针法定量试剂盒。我用过茎环法反转录+染料法定量的,下游引物为通用引物,结果不太好,就现在用的这家的他采用的是双向引物都是特异性的,效果还可以。不知道我说的清楚不,希望能对你有帮助。
如果是用转录出的cDNA做那跟平时就一样了。不需要特别的试剂盒、

