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益气复智颗粒对多发脑梗死性痴呆模型大鼠脑组织细胞凋亡的影响 总被引:1,自引:0,他引:1
目的 观察益气复智颗粒对多发脑梗死性痴呆模型大鼠脑皮质形态学、细胞凋亡的影响。方法 采用颈内动脉注射血栓的方法,复制多发梗死性痴呆大鼠模型,观察益气复智颗粒12.42g/kg分别于手术前、手术前后、手术后灌胃对实验动物脑皮质形态学、细胞凋亡的影响。结果 益气复智颗粒能使脑缺血后脑内神经细胞凋亡数目下降。结论 益气复智颗粒具有较好的保护脑神经元,阻断脑缺血致神经细胞死亡病理过程的作用。 相似文献
3.
目的建立滑膜炎颗粒剂中原儿茶醛的含量测定方法质量。方法采用高效液相色谱法对方中原儿茶醛进行含量测定。结果高效液相色谱法测定结果表明原儿茶醛在0.1005~1.005μg范围内呈线性关系,平均加样回收率为99.22%;RSD为0.72%。结论本法简便,重现性好、结果可靠,可作为控制滑膜炎颗粒剂的质量方法。 相似文献
4.
施延庆治疗震颤麻痹经验 总被引:1,自引:0,他引:1
施延庆主任中医师是全国首批500名学术经验继承的名老中医之一。施老擅长温针疗法,在治疗疑难杂病中独树一帜。历年来施老以温针治疗震颤麻痹症数十例,取得很好的疗效,今介绍于下,供同道参考。1 病因病机震颤麻痹又称帕金森病,是以进行性运动徐缓,肌肉强直及震颤为特征的病症,多发于中老年人,60岁以上的人口中可达1%,是一种较常见的神经系统变性疾病,属中医“颤振”、“痉病”等范畴。施老以中医针 相似文献
5.
6.
盘龙七片治疗不稳定性冠心病心绞痛临床观察 总被引:1,自引:0,他引:1
对58例不稳定性冠心病心绞痛患者,用盘龙七片(38例)及复方丹参片(20例)治疗,观察治疗前后心电图ST段,血液流变学及临床症状的变化,结果:盘龙七片组心电图ST段的缺血变化明业优于复方丹参片组(P〈0.01),血浆粘度及纤维蛋白原下降亦明显(P〈0.05或P〈0.01),结论:盘龙七片虽是一种抗风湿,骨伤的中成药,但同样对治疗不稳定性冠心病心绞痛有一定的疗效。 相似文献
7.
The cellular and regional distribution of glutathione (GSH) and GSH-related enzyme systems involved in cellular defense against reactive oxygen species and electrophilic xenobiotics in the nervous system has been extensively studied. However, little is known about the subcellular distribution of GSH systems in brain tissue and cultured neural cells. The present study investigates the distribution of mitochondrial and cytosolic GSH and GSH-related enzymes in cultured cerebellar astrocytes and granule cells, and compares them with levels in the adult rat cerebellum. Cytosolic GSH levels and cytosolic activities of glutathione reductase (GR), glutathione peroxidase (GPx) and glutathione-S-transferase (GST) in astrocytes were 57, 153, 245, and 92% higher than those found in granule cells, respectively. In contrast, granule cells contained significantly higher mitochondrial GSH levels than astrocytes. Granule cells also demonstrated comparable mitochondria/cytosolic concentrations of GSH and GR, GPX and GST activities to those observed in the cerebellar tissue, whereas ratios in astrocytes were markedly lower. Although in vitro treatments with 100 μM ethacrynic acid depleted both cytosolic and mitochondrial GSH in cultured astrocytes and granule cells in a time-dependent fashion, cellular GSH in granule cells was more resistant to the GSH-depleting agent than astrocytes. These results suggest that although GSH and GSH-related enzymes are abundant in cytosolic compartments of astrocytes, mitochondrial pools are relatively small. Since brain mitochondria are sites of significant hydrogen peroxide generation, the mitochondrial localization of GSH and its associated enzymes in neural cells provide important defenses against toxic oxygen species in the nervous system. Differences in subcellular distribution of GSH systems in individual neural cell types may provide a basis for selective cellular and/or subcellular expression of neurotoxicity. 相似文献
8.
张琪治疗劳淋经验 总被引:7,自引:0,他引:7
张琪(1922~),男,中医世家.现任黑龙江省中医研究院研究员、主任医师,兼任黑龙江中医药大学教授、博士生导师,黑龙江省中医药学会名誉会长,中华中医药学会顾问.享受政府特殊津贴.精于仲景学说,兼通金元四大家及温病学家的学术理论,对中西汇通亦多有涉猎,尤对王清任、张锡纯的学术思想研究较为深入.善治多种疑难病症,对慢性肾脏疾病的治疗有较深造诣,为黑龙江省中医肾病重点学科带头人.主持完成了"补脾肾泻湿浊解毒活血法治疗慢性肾功能衰竭的临床与实验研究"等多项科研项目,并获省级、部级奖励.代表著作有<脉学刍议>、<临床经验集>、<张琪临证经验荟要>等,发表学术论文50余篇. 相似文献
9.
H. B. Jones C. R. Jenkins A. L. Bowdler M. G. Simpson E. A. Lock 《Acta neuropathologica》1997,93(3):241-251
The objectives of the studies described were to assess the ultrastructural neuropathology, blood-brain barrier (BBB) integrity
and calcium status of the cerebellum of rats following a single dose of 750 mg · kg–1
l-2-chloropropionic acid (l-2-CPA). The first indications of intoxication appeared at 36 h when condensation of many granule cells associated with Purkinje
cell degeneration and marked astroglial swelling were observed. Some electron-lucent granule cells were also noted lying amongst
these condensed forms. Condensed granule cells had swollen, electron-lucent mitochondria, dilated Golgi apparatus and nuclear
crenation. Occasionally, areas of granule cell necrosis were also present at this time. Granule cell condensation probably
represents a preliminary and irreversible stage in an excitotoxic process that leads to necrosis. At 48 and 72 h, most granule
cells were necrotic, and occasionally, extravasation of both erythrocytes and leucocytes into the expanded extravascular space
was observed. Evaluation of the BBB by ultrastructural cytochemical visualisation of horseradish peroxidase injected i.v.
2 min before killing by perfusion fixation showed substantial leakage. At 36 h post-dose, ultrastructural calcium localisation
using oxalate/pyroantimonate precipitation demonstrated a substantial increase in calcium pyroantimonate precipitate in mitochondria
and other membranous cytoplasmic organelles (especially the Golgi apparatus) in condensed granule cells, but with little in
their nuclei. However, their immediate neighbours (of ostensibly normal ultrastructural appearances) contained greater amounts
of intranuclear precipitate. Swollen astroglial cells (especially the Bergmann glia) contained considerable quantities of
precipitate. A possible excitotoxic mechanism via l-2-CPA-induced NMDA receptor agonism leading to overwhelming calcium influx and disruption of cellular calcium homeostasis
is proposed.
Received: 8 May 1996 / Revised: 1 September 1996 / Accepted: 11 September 1996 相似文献
10.
大鼠创伤性肠粘连模型的制备及黄厚排气颗粒对其粘连程度的影响 总被引:5,自引:0,他引:5
为筛选出操作方法简便,结果稳定可控的大鼠创伤性肠粘连模型,观察中药复方黄厚排气颗粒对其粘连程度的影响,选用SD大鼠,手术造成肠粘连模型,用中药复方2.5、5.0、10.0g/kg连续治疗7d后观察肠粘连程度。结果表明,以盲肠型动物模型的制备较为理想,手术易于操作,结果稳定可控。用中药复方治疗后模型动物的肠粘连程度得到明显改善。提示黄厚排气颗粒对术后肠粘连有一定的预防作用。 相似文献