随着周期性外源雌激素和个人雌激素增殖的时间越来越提前，许多女孩八岁大的时候就有了初潮。
With the proliferation of xenoestrogens, environmental estrogens that are bringing on periods younger and younger, many girls are as young as eight when Aunt Flow arrives.
被感染人员是病毒主要携带者和增殖者，是未受感染蚊子的病毒源。
Infected humans are the main carriers and multipliers of the virus, serving as a source of the virus for uninfected mosquitoes.
目的：探讨硝普钠(SNP)对脊髓源性神经干细胞增殖的抑制作用及诱导其向神经细胞分化的可能性。
AIM: to investigate effects of sodium nitroprusside (SNP) on the proliferation and the differentiation of spinal neural stem cells into neural cells in vitro.
目的探讨胶质瘤细胞血小板源生长因子B链的纯合二聚体(PDGFBB)自分泌环活性与其细胞增殖和凋亡的关系。
Objective to investigate the relationship between activity of autocrine loop of platelet derived growth factor BB (PDGFBB), cell proliferation and apoptosis in gliomas.
结论：硝普钠可以抑制脊髓源性神经干细胞的增殖、诱导脊髓源性神经干细胞向神经元的分化。
Conclusions is Sodium nitroprusside can inhibit the proliferation and promote the differentiation of spinal neural stem cells into neuronal but not glial cells in vitro.
观察血小板源性生长因子（PDGF）对肺纤维母细胞增殖、胶原合成的影响。
PURPOSE The study was carried to observe the effect of platelet-drived growth factor(PDGF) on the cellular proliferation and synthesis of procollagen of rat pulmonary fibroblasts (PFbs).
外源生长素和细胞分裂素是诱导离体培养细胞分化与增殖所必需的，2，4-D是诱导胚性愈伤组织的重要激素。
The exogenous auxin and cytokinin are necessary to induced differentiation and proliferation of cells of culture in vitro. 2,4-D is an important hormone of induced embryogenic calluses.
结论：大鼠脊髓内可分离出脊髓源性神经干细胞，呈贴壁增殖状态，并有分化能力。
Conclusion the neural stem cells can be isolated from newborn rat spinal cords with adherence proliferation status and they have potential of differentiation.
结果胚鼠室管膜源性神经干细胞在相应培养条件下呈现出神经干细胞快速增殖，形成由多细胞组成的细胞球（神经球）；
Results The NSCs derived from the fetal rat ependyma were observed to rapidly proliferate to form some cellular spheres or neural spheres consisting of NSCs.
结论：釉基质蛋白可作为一种成骨诱导剂，能有效增强大鼠脂肪源性干细胞体外增殖活性并诱导其成骨分化。
Conclusion: Enamel matrix proteins may be used as an osteoinductive agent, due its enhancing effect on adipose-derived stem cells proliferation and osteogenic differentiation.
骨骼肌卫星细胞是骨骼肌中位于肌细胞膜和基膜之间的具有增殖分化潜力的肌源性细胞。
Skeletal muscle satellite cells are quiescent mononucleated myogenic cells, located between the sarcolemma and basement membrane of terminally-differentiated muscle fibres.
骨骼肌卫星细胞是骨骼肌中位于肌细胞膜和基膜之间的具有增殖分化潜力的肌源性细胞。
Skeletal muscle satellite cells are quiescent mononucleated myogenic cells, located between the sarcolemma and basement membrane of terminally-differentiated muscle fibres.
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