小腿前外侧群肌的应用解剖

目的　为小腿下 1 /3的骨髓炎和其它创伤性修复提供满意的肌瓣。方法　用 30具成人的尸体 ,采用连续层次解剖法 ,调查了小腿前群和外侧群各肌 ,并用游标卡尺测量了有关的数据。结果　转动小腿前、外侧群各肌肌腹 ,均可不同程度地覆盖小腿下 1 /3的前内侧面。结论　除胫骨前肌和腓骨长肌因受功能的限制外 ,其它各肌均可移植。     

PCR技术在鼠肺支原体检测中应用的初步研究

目的　研究不同培养条件对小鼠卵母细胞体外成熟及体外受精率的影响。方法　小鼠卵母细胞分别在含有FSH、BSA和胰岛素的培养液中体外成熟,在Whitten 氏液中体外受精,比较体外成熟率、体外受精率。结果　1- 裸卵(DO) 的体外成熟率、体外受精率(81-4% ,31-0 % ) 均高于卵丘卵母细胞复合体(COC)(48-6 % ,27-1% ) 。2- 在培养液中添加FSH、胰岛素和BSA,卵母细胞的体外成熟率为77-9 % ,82-3% 、60-7% ;体外受精率为77-2 % 、72-6 % 、26-7% ;2 - 细胞率为49-2 % 、34-2 % 、10-0% 。胰岛素组的卵母细胞IVM 率最高,但IVF率、2 - 细胞率低于FSH 组。3- 添加BSA的两组的体外受精率只有26-7 % 、25-8 % ,显著低于其他组,其体外成熟率也较添加FSH 和胰岛素的组成。4- 排出第一极体(PbI) 的卵母细胞的体外受精率和2 - 细胞率(85-9 % ,22-4% ) 均高于GV期卵母细胞(71-1 % ,12-9 % ) 。结论　1- 卵丘卵母细胞(COC) 较裸卵(DO) 的体外成熟率、体外受精率都低,差异显著(P成熟< 0-01;P受精< 0-05) 。2-FSH 和胰岛素均能提高小鼠卵母细胞的体外成熟率、体外受精率。3-BSA可以降低小鼠卵母细胞体外受精率,差异极显著。4-GV 期卵母细胞的体外受精率显著低于体外培养的排出第一极体的卵母细胞(P2 - cell < 0-05,P受精<0-05)     

透析前注射单剂量低分子量肝素对透析器复用效率的评价

目的：评价血液透 析前注射单剂量低 分子量肝素（ Ｌ Ｍ Ｗ Ｈ）与持续 输注普通肝素（ Ｓ Ｈ）对复用透析器 效率的影响。方法：对 ３０ 例慢性透 析患者进行随机交叉对照研究,观察第一、四次透析的透析器纤维包裹容量 （ Ｆ Ｂ Ｖ）、透析前血球压积 （ Ｈ Ｃ Ｔ）及透析 ２ ｈ 尿素氮、肌酐 清除率,另外,利用生色底物法测定透析 ０ ｈ、２ ｈ、４ｈ 血浆肝素抗 Ｆｘａ 水平。结果：同 Ｓ Ｈ 组比, Ｌ Ｍ Ｗ Ｈ 组透析器复用次数明显增加（ Ｐ＜ ０．０５）,第四次复用透析器 Ｆ Ｂ Ｖ 及透析 ２ ｈ 尿素氮、肌酐清除 率无明显 下降（ Ｐ＜ ０．０５）, Ｓ Ｈ 组则明显 下降（ Ｐ＜ ０．０５）,透析 ２ ｈ 两组血浆肝素活性抗 Ｆｘａ 水平无明显差异（ Ｐ＜ ０．０５）,透析 ４ ｈ Ｌ Ｍ Ｗ Ｈ 组明显高于 Ｓ Ｈ 组（ Ｐ＜ ０．０５）。结论：透析前 单剂量注射 Ｌ Ｍ Ｗ Ｈ 能保护复用透析器清 除率,值得临床上进一步推广。     

成釉细胞纤维肉瘤间叶细胞的电镜和免疫组化研究

为探讨成釉细胞纤维肉瘤（ Ａ Ｆ Ｓ）间叶细胞的本质及特征, 作者采用免疫组化和电镜技术,对３例 Ａ Ｆ Ｓ间叶细胞进行了研究,并与６例成釉细胞纤维瘤进行比较。结果显示： Ａ Ｆ Ｓ的间叶细胞主要由成纤维细胞构成,此外尚有少许未分化间叶细胞和组织细胞, 偶见肌纤维母细胞。成纤维细胞仅表现 Ｖｉｍ ｅｎｔｉｎ 阳性。肌纤维母细胞呈 Ｖｉｍ ｅｎｔｉｎ, Ｈ Ｈ Ｆ３５及 α Ｓ Ｍ Ａ 阳性。组织细胞 Ｐ Ｇ Ｍ１ 和ｋｐ１标记均阳性, 可能是炎症或免疫反应的产物。与成釉细胞纤维瘤比较, Ａ Ｆ Ｓ间叶细胞具备较高的 Ｐ Ｃ Ｎ Ａ 阳性标记率, 提示 Ａ Ｆ Ｓ的增生活性较高。     

Bilroth Ⅱ术后残胃排空和小肠转运功能变化

目的：探讨ＢｉｌｒｏｔｈⅡ（ＢⅡ）术后固体餐的残胃排空和小肠转运动能。方法：应用ＰＨＹ９９ｍＴｃ标记的固体餐,对正常健康者（Ａ组）、胃窦癌病人（Ｂ组）和ＢⅡ病人（Ｃ组）,分别进行胃排空和小肠转运功能的研究。结果：Ｃ组餐后１０ｍｉｎ胃排空率比Ａ、Ｂ组显著增加（Ｐ＜０．０１）;胃半排空时间明显减少（Ｐ＜０．０１）。而初排后胃的排空率Ｃ组［（２８３±５４）％／ｈ］及Ｂ组［（２６±５２）％／ｈ］均比Ａ组［（３８７±４５）％／ｈ］低。小肠转运时间Ｃ组比Ａ、Ｂ组显著延长（Ｐ＜０．０１）。结论：ＢⅡ病人和胃窦癌病人胃初排空后存在胃排空延迟现象。同时,前者初排空显著加快,且小肠转运时间明显延长     

轻、中度缺氧对事件相关电位的影响及不同刺激模式的比较

目的 观察轻、中度缺氧对脑事件相关电位（ＥＲＰ）的影响,比较不同刺激模式发的ＥＲＰ对缺氧的敏感性,方法１２名受试者在地面、２５００ｍ和４３００ｍ匠心同度（吸放低氧混合气）分别进行视觉Ｏｃｄｄｂａｌｌ、Ｓｔｅｒｎｂｅｒｇ记忆量（ＭＳＥＴ）为１ 和ＭＳＥＴ为３的任务测试,记录ＥＲＰ的Ｐ３潜伏期、波幅和反应时（ＲＴ）及反应错误率（ＥＲ）。结果 ４３００ｍ高度缺氧时Ｐ３潜伏期显著延长,任务难度较大时ＥＲ增     

Patient Satisfaction and Results of Vertical Banded Gastroplasty and Gastric Bypass

Background: Morbid obesity contributes to many health risks, including physical, emotional, and social problems. Various surgical treatments for morbid obesity have developed and have so far met with good results. This study compares vertical banded gastroplasty (VBG) with gastric bypass (GBP) and the patients' satisfaction with either procedure. Methods: Between April 1993 and July 1997, 63 bariatric surgical procedures were performed at Eisenhower Army Medical Center. Of those, complete follow-up was obtained for 29 patients. The parameters evaluated included age, preoperative and postoperative weights, body mass index (BMI), type of surgery, complications, and the patient's level of satisfaction. Results: The study group consisted of 27 women and 2 men. The average preoperative weight was 135 kg, and the average preoperative BMI was 48.3 kg/m². There were 17 VBGs and 12 GBPs performed. The average total weight loss was 45.1 kg. The average postoperative BMI was 33.2 kg/m². There were no statistically significant differences in weight loss between VBG and GBP. Four of 17 patients had complications after VBG, and three of 12 patients had complications after GBP. After VBG, 94.1% of patients were satisfied, and after GBP, 100% were satisfied. Twenty-seven of 28 patients stated that they would have the surgery again. Conclusion: There were no statistically significant differences in weight loss or complications after VBG or GBP. Patient satisfaction was high after both procedures. Therefore, bariatric surgery is important in the treatment of appropriately selected, morbidly obese patients.     

原位末端标记检测实验性变态反应性神经炎胸腺细胞的凋亡

目的为了探讨地塞米松对实验性变态反应性神经炎（ＥＡＮ）小鼠胸腺细胞的影响。方法应用原位末端标记法和电镜检测ＥＡＮ小鼠胸腺细胞的凋亡。结果以上两种方法均发现地塞米松处理组胸腺细胞凋亡率明显高于自然病程组和正常对照组。结论地塞米松可明显增强ＥＡＮ小鼠胸腺细胞凋亡。     

Lysosomal dysfunction results in lamina-specific meganeurite formation but not apoptosis in frontal cortex

An inhibitor of cathepsins B and L was used to test if lysosomal dysfunction in cultured slices of rat frontal cortex induces pathological features that develop in the human cortex during aging and Alzheimer's disease (AD). Incubation for 6 days with N-CBZ-L-phenylalanyl-L-alanine-diazomethylketone (ZPAD) resulted in a massive proliferation of endosomes-lysosomes in all cortical layers. Slices additionally exposed to a washout of 4 days had numerous meganeurites, blister-like structures in the region of the axon hillock, in layer III but not in other cortical laminae. Meganeurites are a characteristic feature of the human frontal cortex after age 50 and are largely restricted to layer III. Tests for apoptosis were carried out at two intervals following meganeurite formation. TUNEL-labeled neurons were confined to layers II/III on the surface of the slices but there was no evidence for a ZPAD effect. In all, 6 days of lysosomal dysfunction reproduces characteristic effects of normal aging in neocortex without generating some key features of AD.