营养细胞

In conclusion, the lag phase of Streptococcus thermophilus was shorten in the eutrophy culture medium, and the time achieving the culminated point of logarithmic phase was shorted also, at the same time, the stationary phase lengthened. After secondary culture, Streptococcus thermophilus reached directly the log phase hardly through the lag phase, and then quickly reached the decline phase. There were more relations of the metabolic regalities of the three kinds of nutritive substances with the super-concentrated incubation process of Streptococcus thermophilus: the more the number of the bacteria, the quicker the metaboling, while the fewer, the slower the metabolism. Moreover, there apparently existed morphologic changes in this course, and there maybe existed the apoptosis, which correlated with bacteria propagation and acid producing. With the culture time postponed, the nutritive substances in the culture medium lacked also, and the morphologic change and apoptosis appeared more obviously.

结果表明，嗜热链球菌在营养丰富的培养基中的生长延滞期缩短，到达对数生长顶点的时间变短，稳定期的时间延长，当经过二次培养后，嗜热链球菌几乎不经过延滞期直接到达对数期，平稳期持续的时间较短，很快到达衰亡期；嗜热链球菌在超浓缩培养过程中三大营养物质的代谢规律也同它的培养过程有很大的关系，菌数多，其代谢旺盛，菌数降低其代谢速度减慢；嗜热链球菌在超浓缩培养过程中存在着明显的菌体形态变化，并可能存在着细胞凋亡，与菌体增殖和产酸规律密切相关，随着培养时间延长，培养基中营养物质变得贫乏，菌体形态变化和细胞凋亡的情况愈加明显。

According to our results, since BaP increased the expression of COX2 and pp38 to reduce the osteoblast differentiation and this phenomenon can reverse by treatment of NS398, but not by treatment of SB203580, suggesting that COX2 activation plays an important role on osteoblast differentiation. Adlay could increase osteoblast differentiation, in co-culture system, and reverse the osteoporotic status in mice, would be a helpful healthy food for enhance osteoblast differentiation. However, about, TBT, we didn't have enough data to support its effect on the differentiation of osteoblast or osteoclast.

所以依据我们所做出的实验结果，虽然苯骈芘会增加COX2和pp38的蛋白表现，但造骨细胞的分化作用仍下降，但若同时添加NS398，则分化能力有恢复现象，这或许可推测说COX2活性在抑制造骨细胞分化上扮演了一个重要角色；薏苡仁在共同细胞培养可以增加造骨细胞的分化作用，且对骨质疏松状态的小鼠具有缓解的能力，因此或许是能促进造骨细胞分化的营养食品；至於三丁基锡由於实验的数据不多，推测其或许并不影响造骨细胞和破骨细胞的分化作用。

We introduced improved primary mixed glial culture and different-attachment method to isolate and purify the OPCs, the cells were proliferated in serum-free medium, flow cytometry and immunohischemistry methods were employed to estimate the purity of cultured OPCs. Their abilities of differentiation and expression of trophic factors were identified by RT-PCR and immunostaining. Several methods including TUNEL and MTT were adopted to estimate the protective effects of conditioned culture medium from oligodendrocyte lineage cells on the primary cultured cerebellar granule neurons. Intravitreal transplant of OPCs, combined with retrograde fluorescent labeling the superior colliculus and intraorbital optic nerve transection, were used to investigate the protective effects of OPCs on the axotomized RGCs in vivo. Intravitreal transplantof OPCs or NSCs on the newborn rats, and retinal transplant of OPCs on the young rats were performed, to observe the myelin formation in the retina at different stages after cellular transplantation. Optic nerve transection was carried out on some rats with myelinated retinae, to study the influence of myelination on the injuried RGCs.

为此，本研究采用改良的胶质细胞混合培养与差速贴壁方法获得大鼠OPCs，使用无血清培养基进行扩增、培养，用免疫组织化学和流式细胞技术对培养细胞的纯度进行鉴定，对少突胶质系细胞表达部分营养因子的情况进行检测；采用TUNEL、MTT等方法对少突胶质系细胞条件培养基对原代培养小脑颗粒神经元的保护作用进行检测；将OPCs移植入成年SD大鼠玻璃体内，利用上丘逆行荧光标记技术，观察眼内移植的OPCs对眶内视神经切断时的视网膜神经节细胞的保护作用及其持续时间；将OPCs或NSCs移植入新生和幼年SD大鼠玻璃体或视网膜内，观察不同时期视网膜内髓鞘形成与分布特点，分析髓鞘的超微结构，并观察眼内髓鞘形成对损伤神经节细胞的保护作用。

Part 4: Brain-derived neurotropic factor genetically modified olfactory ensheathing cells of the neonatal rat Objective To culture the olfactory ensheathing cells from the neonatal rat and modify them genetically by human Brain-derived neurotropic factor to increase the formation of neurophic factors. Methods The OECs were dissociated from the neonatal rat olfactory bulbs and purified with time-speed difference stick.

第四部分：脑源性神经营养因子基因转染新生大鼠嗅鞘细胞目的为提高嗅鞘细胞(Olfactory ensheathing cells，OECs)分泌脑源性神经营养因子(BDNF，Brain-derived neurotropic factor)的能力，探讨将外源性BDNF基因转染入OECs，为今后采用BDNF基因修饰的OECs移植治疗SCI奠定基础。

With the development of modern science, the production of formula milk and breast milk also as far as possible the nutritional composition similar to milk formula can provide nutrition and breast milk can be comparable, such as nucleotide: nucleotide is a natural component of breast nucleotide involved in the life processes of all cells is the human genetic material DNA and RNA structural units, present in every cell.

而随着现代科学的发展，配方奶的制作也尽量与母乳的营养成份接近，配方奶粉所能提供的营养完全可以与母乳媲美，比如核苷酸：核苷酸是母乳的天然成分，核苷酸参与所有细胞的生命过程，是人体遗传物质DNA和RNA的结构单位，存在于每个细胞中。

Methods: Dorsal root ganglions were derived from the chick embryo and dispersed into single neuron cell,The rhCNTF was added to neuron cells and incubated for 64 hours,The activity of acid phosphatase in neuron cells was determined and the biological activity of rhCNTF was analyzed quantificationally.

从鸡胚中分离出背根神经节并制成神经细胞，将重组人睫状神经营养因子加入到细胞中继续培养64h后，用酸性磷酸酶法检测活细胞内酸性磷酸酶的活性，从而定量测定重组人睫状神经营养因子的生物活性。

The ancients said:"longevity in air can cause longevity", so pine pollen can be called "King of pollen." 2, full nutrition are pine-hung pine pollen-tipped stamens of the sperm cells, bears a heavy pine reproduction, which is the essence of pine, Beijing 301 Hospital of trace elements by the Research and Technical University of Munich, Germany (Europe's best-known trace elements Research Center) in cooperation of pine pollen nutrients all made the most scientific testing, during the surprise discovery of pine pollen longevity life contains all the necessary nutrients, and with a reasonable and be able to fully complement and balance the human body nutrition.

古人称：&松柏之气可以使人长寿&，所以松花粉堪称&花粉之王&。2、全营养松花粉是松树雄花蕊的精细胞，担负着松树繁衍的重任，它是松树的精华，经北京301医院微量元素研究室与德国慕尼黑技术大学（欧洲最著名的微量元素研究中心）合作，对松花粉所有的营养成份作了最科学的检测，期间惊奇的发现，松花粉里含有长寿生命体所需的全部营养成份，且搭配合理，能够全面补充、均衡人体所需的营养。

The results showed that the number of BrdU-positive cells of the malnourished immature rats was significantly bigger than that of the well-nourished age-matched control rats in the dentate gyrus but not in the subventricular zone.

结果表明，营养不良幼鼠齿状回的细胞增殖和神经生发明显高于营养良好的幼鼠而脑室下层的细胞增殖数量在两者却无明显差异。

The laboratory research and chinical trials to prove.courage lcecontains active material that it can quickly penetrate through body's cell.so to directly provides for the cell,fill the skin intercellular space the crevice which is senile withered because of the cell stays benind supply the active elements necessary for the body cells metabolism,to activate the function of endothelium cells of blood vessels,promote the blood vessels balance, compose and secrete various blood vessels active elements,contains abundantsulfuric cartilage element,sulfuric amido etc.,all of fatty acid in human body.and it can accelerete the re-generation of blood cells,add the quantity of the hemoglobin and red blood corpuscle so to improve the blood parameter,and fundamentally improve the body cells metabolism and nutrition supply for all the organs,as a result,you will thoroughly refresh yourself and bloom vitality of youth.

实验室研究和临床试验证明，LCE所含活性物质能够迅速穿透人体细胞，直接为细胞供养，填补肌肤细胞间因细胞衰老干瘪而留下的空隙全面补充人体细胞新陈代谢所必须的活性物质，激活血管内皮细胞功能，促进血管平衡，合成和分泌多种血管活性物质：富含的硫酸软骨素、硫酸氨基葡萄糖等能改善和调节人体脂代谢，有效清除体内血液中多余的脂质和脂蛋白清除在血管壁内膜沉积的脂类物质，保持人体脂肪酸均衡：能够加快血液细胞更新，提高血液中的血红蛋白和红血球数量，改善血液参量，从根本上改善人体细胞的新陈代谢，改善人体各组织器官的营养供给，使人由内而外脱胎换骨，重新焕发青春活力。

The laboratory research and chinical trials to prove.courage lcecontains active material that it can quickly penetrate through body's cell.so to directly provides for the cell,fill the skin intercellular space the crevice which is senile withered because of the cell stays benind supply the active elements necessary for the body cells metabolism,to activate the function of endothelium cells of blood vessels,promote the blood vessels balance, compose and secrete various blood vessels active elements,contains abundantsulfuric cartilage element,sulfuric amido etc.,all of fatty acid in human body.and it can accelerete the re-generation of blood cells,add the quantity of the hemoglobin and red blood corpuscle so to improve the blood parameter,and fundamentally improve the body cells metabolism and nutrition supply for all the organs,as a result,you will thoroughly refresh yourself and bloom vitality of youth.

实验室研究和临床试验证明，LCE所含活性物质能够迅速穿透人体细胞，直接为细胞供养，填补肌肤细胞间因细胞衰老干瘪而留下的空隙全面补充人体细胞新陈代谢所必须的活性物质，激活血管内皮细胞功能，促进血管平衡，合成和分泌多种血管活性物质：富含的硫酸软骨素、硫酸氨基葡萄糖等能改善和调节人体脂代谢，有效清除体内血液中多余的脂质和脂蛋白清除在血管壁内膜沉积的脂类物质，保持人体脂肪酸均衡：能够加快血液细胞更新，提高血液中的血红蛋白和红血球数量，改善血液参量，从根本上改善人体细胞的新陈代谢，改善人体各组织***的营养供给，使人由内而外脱胎换骨，重新焕发青春活力。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。