神经组织

Cumulative data have been documented that mesenchymal stem cells can differentiate into osteoblasts, chondrocytes, adipocytes, tenocytes, myotubes, neural-like cells, hematopoietic-supporting stroma and other non-hematopoietic cells derived from mesoblast or ectoblast.

大量研究表明，体外培养的骨髓间质干细胞在合适的诱导条件下，可分化为成骨细胞、成软骨细胞、脂肪细胞、成肌细胞、成腱细胞和神经元样细胞等多种非造血组织特别是中胚层和神经外胚层来源的组织细胞。

Under the existence of special medium,the differentiation of neural stem cells from hindbrain is easier than that from forebrain .

在条件培养基存在的情况下，后脑组织分离的神经干细胞比前脑组织来源的更容易分化。

Two gene fragments of DEN-1(GenBank accession number DQ886390)and DEN-2(GenBank accession number DQ886391),differentially expressed between the ocular skin tissues of normal and albino turbot,were isolated by mRNA differential display and sequenced.It was confirmed by RT-PCR method that the expression levels of both DEN-1 and DEN-2 were down-regulated in the ocular skin tissue of albino turbot.The sequence homology search of DEN-1 revealed high sequence homologies with the UGGT genes of zebrafish and cattle,and the Ugcgl1 gene of Norway rat.High sequence homologies of DEN-2 were observed with the eya4 gene(the eye absent homolog 4)from red jungle fowl,zebrafish,human,Norway rat,mouse and dog.

应用mRNA差异显示技术，对比研究正常与白化大菱鲆有眼侧皮肤组织，克隆差异表达基因，经测序，RT-PCR 验证，差异表达基因片段DEN-1(GenBank登录号：DQ886390)与DEN-2(GenBank登录号：DQ886391)均在白化大菱鲆有眼侧皮肤组织中下调表达；通过BLAST检索发现，DEN-1与GenBank中的斑马鱼和牛的类似尿苷二磷酸-葡萄糖：糖蛋白葡糖基转移酶基因、与挪威鼠类似尿苷二磷酸-葡萄糖：神经酰氨葡糖基转移酶1(Ugcgl1)基因有较高同源性；DEN-2 与原鸡、斑马鱼、人、挪威鼠、家鼠和狗的眼缺乏同源框4(eya4)基因的同源性均较高。

Neurite regeneration from central nervous tissue of mammalian has been demonstrated to occur in early postnatal stage but not in adult stage.

刚出生的哺乳动物之中枢神经组织在体外培养具有神经轴突再生的能力，但是成人期的中枢神经组织就丧失此能力。

Neuroglia, the basic integrant of blood-brain-barrier is defective in brain metastatic tumor tissue, thus there is no blood-brain-barrier existing in brain metastatic tumor lesions.

脑转移癌组织缺乏构成血脑屏障的神经胶质膜，血管内皮也非均一的紧密连接，所以脑转移癌组织不存在完整的血脑屏障。

Results The choroid plexus, hypophysis, area postrema and pineal body, namely, circumventricular organs and ependyma as well as pia mater layers were stained by the HRP reaction products.The HRP reaction products were observed in the tissue space of membrane mucosa nasi, around the fila olfactoria and venules, and within the venules under the light microscopy and electron microscopy, also. Scintillation count showed that the radioactivity of the CVOs was higher than that of the background. The radioautography showed that the scattered grains of silver existed within the cells of neurocyte layer also.

结果 在脑室周围器官及脑室周围室管膜、软脑膜层有HRP反应产物的聚集，在鼻中隔的鼻粘膜下组织间隙、嗅丝周围间隙及静脉周围和管腔内也可见到HRP反应产物；液闪计数显示，大白鼠的脉络丛、脑垂体、最后区、松果体等脑室周围器官放射性活度明显高于本底；放射自显影显示大白鼠脑组织神经层细胞内有散在分布的银颗粒。

Because the objects of medicine are the "animate things", composed of active organs such as hair, skin, muscle, bone, marrow, nerve, blood, water, blood vessel, brain, heart, liver, lung, pancreas, spleen, kidney, stomach, intestine, gallbladder, bladder, nose, ear, eye and sexual organs and the above mentioned active organs can be divided into living matter of different kinds of cells; thereinto, men have penis, testicle and epididymis, spermaduct, sperm, breast undevelopment, androgen production etc.

因为，医药的对象是人类为"活物"，人类均由毛、皮、肌、骨、髓、神经、血液、水液、血管、脑、心、肝、肺、胰、脾、肾、胃、肠、胆、膀胱、鼻、耳、目、两阴等活性组织器官组成。前述活性组织器官还分有各种不同细胞的生命物质等。其中，男人有阴茎、睾丸和附睾丸、输精管、精液、乳房不发育、产生雄激素等。

Fabrication of tissue section:after spinal cord injury ld,3d,5d,8d,14d,21d,we sacrificed rats in batch.4% formaldehydum polymerisatum were pured into the cardiac muscle and fixed for 24h.Then obtain the specimen of spinal cord from T_5 to T_(13).Establishing slices,HE dyeing,bcl-2 dectation,terminal doxynucleotidyl transferase-mediated dUTP nick end labeling.On the fourteenth day after spinal cord injury,we detect Gale grading score and tiltboard experiment.

组织切片的制备：脊髓损伤后1d，3d，5d，8d，14d，21d共6个时间段分批处死动物。4%多聚甲醛心肌灌注固定24h，切取每只大鼠T_5～T_(13)节段脊髓组织，常规制成切片，给于HE染色，Bcl-2检测，TUNEL原位末端标记以及伤后第14天检测Gale评分和斜板实验，检测大鼠脊髓损伤后细胞凋亡和脊髓神经功能恢复情况。

In contrast to white fat, brown fat is richly vascularized and has numer unmyelinated nerves which provide sympathetic stimulation to the adipocytes.

和白色脂肪组织比较起来，棕色组织有充分的血管浸润，而且有许多无髓鞘的神经提供交感神经对脂肪细胞的刺激。

Methods In 18 adult upper extremity cadavers,origins,courses, branches,distribution and the anastomosis of the medial antebrachial cutaneous nerve,basilic vein and their nutrient vessels were studied under the operating microscope.5 fresh adult cadavers,photographic developer were injected in the artery.

方法上肢标本18侧，显微剥离表皮组织，观察前臂内侧皮神经、贵要静脉及各自营养血管的起始、走行、分支、分布及与其它血管的吻合情况；新鲜整尸标本5具，动脉灌注显影剂，剥离体被组织于X光下摄影，分析皮动脉的分布及其与毗邻血管的关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。