Oligodendrocyte precursor cell transplantation in treatment of demyelinating diseases of central nervous system: Recent progress / 第二军医大学学报

Demyelinating diseases are a group of nervous system disorders characterized by myelin sheath damage. Demyelinating diseases can seriously affect the quality of life of its victims and still lack satisfying therapeutic options. Oligodendrocyte precursor cells (OPCs) are progenitor cells exist in the central nervous system (CNS), with migration and proliferation capacities and potential to differentiate into oligodendrocytes (OLs), which are myelinated cells in the CNS, indicating that OPCs are closely related to myelination and post-injury regeneration in CNS. Recently, with the improved understanding of the mechanisms of OPCs development and lineage specification, the approaches to gain functional OPCs through directed differentiation from pluripotent stem cells or lineage reprogramming from somatic cells have been greatly promoted. Based on these achievements, OPCs transplantation becomes a promising therapeutic option for the treatment of demyelinating diseases of CNS. In this review, we summarized the latest research progress in this field.

Identification and characterization of three new flavonoids from Rhododendron dauricum / 中国天然药物

The present study was designed to determine the major chemical constituents of the leaves of Rhododendron dauricum L. Compounds were isolated and purified by various chromatographic methods, and their structures were elucidated by physicochemical properties and spectral data. The present study identified two new C-methyl flavanones, 5, 7, 3', 5'-tetrahydroxy-6, 8-di-C-methyl flavanone (1) and 5, 4'-dihydroxy-8-C-methylflavanone-7-O-β-D-glucopyranoside (2), and one new flavonoid glycoside, quercetin-3-O-β-D-(6"-O-cinnamoyl)-galactoside (3), along with seven known compounds, including syzalterin (4), poriolin (5), farrerol-7-O-β-D-glucopyranoside (6), myrciacetin (7), quercetin-3-O-β-D-(6-p-hydroxy-benzoyl)-galactoside (8), quercetin-3-O-β-D-(6-p-coumaroyl)-galactoside (9), and 5, 7, 3', 5'-tetrahydroxyl flavanone (10). Compounds 1-3 were determined to be new flavonoids; compounds 4-6 were isolated from this species for the first time; and compounds 7-10 were reported for the first time from this genus.

The expression and clinical significance of heparanase and fascin in human breast carcinoma / 中国基层医药

0.05),but there was significant correlation between the expression between the size of tumor,lymph nodes metastasis,reoccurrence or prognosis and clinical grade(P