髓鞘

July 9, 2003 Antimyelin antibodies may be useful as a predictor of clinical multiple sclerosis after a first demyelinating event, according to the results of a study published in the July 10 issue of the New England Journal of Medicine . The editorialist agrees that once these results are confirmed, this test may be important for counseling and management of these patients.

2003年7月9日--根据一项发表于7月10日New England Journal of Medicine中的研究结果指出，抗髓磷脂抗体可能有助于在第一次髓鞘脱失时预测临床上的MS，期刊的主笔也认为，一旦这些研究结果被确认，这项试验对于这些患者的治疗和管理将是相当重要的。

But, deep myelination, or the erosion of the protective sheath around the axons of neurons, may not be reversible if B-12 deficiency is severe or long-term, she said.

但是，她说，如果长期严重缺乏B12，一旦髓鞘已经形成，或神经原轴突周围的保护性鞘已受侵蚀就是不可逆的了。

During the relatively refractory period a neuron may be stimulated to fire, given increased stimulation. Neurons are capable of representing differences in input only through rate of response. Myelinted fibers conduct the wave of depolarization more rapidly than demyelinated fibers, primarily due to saltatory conduction.

在相对反抝期一条神经可能会被刺激过度，特定增加的刺激，神经单位是足以表现在输入的差异性，仅透过反应的比率，有髓的纤维引导去极波比脱髓鞘纤维更加快速，主要是由於跳跃性的传导。

Schwannoma; glial cells; glia; gliogenesis; glioma; peripheral nervous system; PNS; myelin sheath; saltatory impulse conduction; nodes of Ranvier; spinal cord

神经鞘瘤；胶质细胞；神经胶质；gliogenesis；神经胶质瘤；周围神经系统；PNS；髓鞘；跳跃冲动传导；郎飞氏结；脊髓

We identified a novel NMO lesion in the spinal cord and medullary tegmentum extending into the area postrema, characterized by AQP4 loss in foci that were inflammatory and oedematous, but neither demyelinated nor necrotic.

我们在对脊髓和延髓背盖延伸入最后区的一个异常NMO病灶研究中证实，该病变仅表现为以AQP4缺失为特征的炎性水肿，既无脱髓鞘也无坏死。

Image analysis showed percentage of regenerative nerve tissue, density of myelined nerve fibers and thickness of myelin had no significant difference with the autografting group.

图像分析见再生神经组织面积百分比、有髓神经纤维密度和髓鞘厚度与自体神经移植组相比无显著差异。

Schwannomas are typically benign, slow growing tumors that arise from the schwann cells, which envelop and myelinate cranial, spinal, and peripheral nerves.

神经鞘瘤是典型的良性、缓慢生长的肿瘤，起源于许旺细胞，包绕并形成颅内、脊髓以及周围神经髓鞘。

Two types, the myelinated nerve fiber and nonmyelinated nerve fiber, the function of the neuromem

髓神经纤维。神经膜细胞和髓鞘的功能是隔离和绝缘。

MAIN OUTCOME MEASURES: Morphology change of spinal cord was detected by light microscope and electronmicroscope, secreted brain-derived neurotrophic factor was measured by immunohistochemistry and PT-PCR, and the combine behavioral score was used to assess the functional recovery of spinal cord. RESULTS: Immunohistochemistry result showed that OECs transplantation could partly reduce the number of apoptosis cells in spinal gray matter, delay cells reduction in spinal white matter, and accelerate the medullary sheath repair and regeneration.

主要观察指标：应用光学显微镜、电子显微镜观察脊髓形态的变化，采用免疫组织化学、PT-PCR 的方法检测脊髓组织脑源性神经营养因子的分泌，以改良的Gale联合行为评分法对脊髓功能进行评定，结果：免疫组织化学检测显示，嗅鞘细胞移植能部分改善大鼠脊髓灰质神经细胞的凋亡程度，延缓白质神经纤维的减少，促进髓鞘的修复与再生。

Each 1 μL site of spinal cord receiving 109 /L OECs at the speed of 1μL/ min. MAIN OUTCOME MEASURES: Morphology change of spinal cord was detected by light microscope and electronmicroscope, secreted brain-derived neurotrophic factor was measured by immunohistochemistry and PT-PCR, and the combine behavioral score was used to assess the functional recovery of spinal cord. RESULTS: Immunohistochemistry result showed that OECs transplantation could partly reduce the number of apoptosis cells in spinal gray matter, delay cells reduction in spinal white matter, and accelerate the medullary sheath repair and regeneration.

主要观察指标：应用光学显微镜、电子显微镜观察脊髓形态的变化，采用免疫组织化学、PT-PCR 的方法检测脊髓组织脑源性神经营养因子的分泌，以改良的Gale联合行为评分法对脊髓功能进行评定，结果：免疫组织化学检测显示，嗅鞘细胞移植能部分改善大鼠脊髓灰质神经细胞的凋亡程度，延缓白质神经纤维的减少，促进髓鞘的修复与再生。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。