肾实质癌59例临床组织病理学分析

0引言肾实质癌通常来源于肾小管上皮细胞的腺癌,透明细胞癌占85%,其余为颗粒细胞癌及混合细胞癌,常伴有出血、坏死、囊变和钙化[1-3].我们分析手术根治的肾实质癌组织病理情况并讨论临床意义.     

Neonatal cholestasis and hypopituitarism

The diagnosis of optic nerve hypoplasia and hypopituitarism must be entertained in infants who present for evaluation of cholestatic jaundice, particularly if there is associated hypoglycaemia and wandering nystagmus. Although the hepatic dysfunction seems to resolve, the long term prognosis of liver disease in optic nerve hypoplasia remains unknown.     

进展期胃癌合并幽门梗阻内镜治疗103例

目的:探讨进展期胃癌合并幽门梗阻内镜治疗的方法及其疗效.方法:103例进展期胃癌合并幽门梗阻患者,按就诊顺序随机分为4组进行内镜下治疗.A组内镜下局部注射化疗药物;B组内镜下微波消融治疗;C组内镜下微波消融治疗加局部注射化疗药物;D组内镜下微波消融治疗加局部注射化疗药物后4wk放置金属内支架.另选择同期拒绝任何治疗的患者25例作为对照组.结果:D组内镜治疗的显效率为84.62%,较B、C两组的33.33%和44.44%明显提高(P<0.01);同时,D组内镜治疗后半年,幽门再梗阻发生率为38.46%,显著低于A、B、C三组的88.46%、79.17%、59.26%(P<0.01).D组患者半年,或1a的生存率明显提高,中位生存期达9.37mo,其生存情况好于其他各组患者结论:内镜下微波消融加局部注射化疗药物,并放置金属内支架是一种治疗进展期胃癌合并幽门梗阻积极的姑息疗法,能明显提高患者的生存质量,延长其生存时间.     

BMP2,4 mRNA在BALB/c系小鼠颅面部发育中的定位表达

0　引言　骨形成蛋白 (Bone morphogenetic Proteins,BMPs)属于 TGF- β超家族 ,最初从牛的脱矿骨骨基质提取出来 ,在活体内可诱导异位成骨 .但近年来的研究表明 ,BMPs还是生长和发育中的调控分子 .为了探讨 BMPs在颅面部发育过程中的表达、区域及变化 ,为进一步研究颅面部畸形 (如腭裂、唇裂、牙齿发育畸形等 )的发生机制打下基础 ,作者检测了BMP2 ,4在颅面部各组织正常发育中的表达模式 .1　材料和方法1.1　材料　 BAL B/ c近交系孕鼠在妊娠期第 14,15 ,16日分别被脱椎处死 ,取胎鼠头部固定于 40 g· L- 1多聚甲醛 ,常规脱水包埋…     

可溶性抗HAV抗体Fab片段的原核表达

0　引言　甲型肝炎病毒 (HAV)是危害人类健康的致病原之一 ,目前已有多种用于接触前预防的甲肝疫苗 ;但对于接触后预防或短期到 HAV高流行区的旅游者的预防 ,则多采用免疫球蛋白作被动免疫 .在接触后 (14d内 )和潜伏期早期 ,注射免疫球蛋白预防甲肝的有效率达 85 %左右 .血源性免疫球蛋白虽然效价高 ,应用效果好 ,但可能被血源病原体污染 .因此基因工程人源抗体有望成为接触后预防的首选制剂 .我们从人源噬菌体抗体组合文库中筛选到一株甲肝特异性抗体 [1 ] ,在此基础上构建了可溶性表达载体 ,并获得可溶性表达 ,为该抗体的进一步研究打…     

Acute spinal cord injury: MR imaging at 1.5 T

Thirty-seven magnetic resonance (MR) imaging studies were performed with a 1.5-T magnet and surface coils in 27 patients with suspected spinal cord injuries. Imaging was performed 1 day to 6 weeks after injury. Cord abnormalities were seen with MR in 19 patients, while skeletal and/or ligamentous injuries were seen in 21 (78%). Three types of MR signal patterns were seen in association with cord injuries. Acute intraspinal hemorrhage was seen in five patients with cord injuries and demonstrated decreased signal intensity on T2-weighted images obtained within 24 hours of injury. Cord edema and contusion had high signal intensity on T2-weighted images and were observed in 12 cases with cord injury. Neurologic recovery, determined in 16 patients, was insignificant in patients with intraspinal hemorrhage; however, patients with cord edema or contusion recovered significant neurologic function. MR at 1.5 T is extremely useful in the diagnosis of acute cord injury and also demonstrates potential in predicting neurologic recovery.