Multiphasic examinations of the stomach: efficacy of individual techniques and combinations of techniques in detecting 153 lesions

Multiphasic examinations of 153 gastric abnormalities observed radiologically and endoscopically were reviewed to determine the efficacy of four radiologic techniques and of several common combinations of these techniques for examining the stomach. There were 68 gastric ulcers, 12 ulcer scars, 44 cases of gastritis including 27 with erosions, 24 benign neoplasms, and five malignancies. Double-contrast, compression, mucosal relief, and full-column techniques detected 82%, 65%, 62%, and 51%, respectively, of all lesions diagnosed with the complete multiphasic examinations. Results indicate that the greater the number of techniques employed, the more accurate the examination, with biphasic and multiphasic examinations detecting 9%-18% more lesions overall than simple single- or double-contrast studies.     

氯化四乙基铵及维拉帕米对家兔缺血心肌不应期的影响

实验比较了K⁺通道阻断剂氯化四乙基铵(TEA)及Ca²⁺通道阻断剂维拉帕米(verapamil,Ver)对家兔缺血性心室肌不应期(ERP)的影响。结果表明,阻断冠脉10min及30min后,缺血中心区(CIZ)和缺血边缘区(BIZ)心肌ERP比缺血前均明显缩短,而TEA和Ver均能延长急性缺血性心肌的ERP,可能对心肌缺血引起的心律失常有预防作用。     

无环鸟苷亲脂性前体药物脂质体的制备及体外抗病毒活性(英文)

本文通过将无环鸟苷(acyclovir,简称ACV)2’位羟基分别与月桂酰氯或棕榈酰氯进行酯化反应,制得亲脂性前体药物无环鸟苷月桂酸酯和无环鸟苷棕榈酸酯(分别简称为C_(12)-ACV和C_(16)-ACV),使脂质体包封率从ACV的29.9％提高到C_(12)-ACV的95.6％和C_(16)-ACV的97.1％;漏泄实验表明在4℃透析60h后,一半以上的ACV从脂质体中漏泄,而C_(12)-ACV和C_(16)-ACV的滞留率分别为70％和80％;体外抗疱疹病毒的试验中,在最低试验浓度0.044μmol/L时,ACV不显示抗病毒活性,而C_(16)-ACV脂质体抑制细胞病变率达75％,说明前体药物通过与脂质体脂膜的结合增加了药物的进入细胞能力,从而提高了ACV的抗病毒能力。     

赤芝子实体中灵芝酸类成分的研究

自赤芝［Ｇａｎｏｄｅｒｍａｌｕｃｉｄｕｍ（Ｆｒ．）Ｋａｒｓｔ．］子实体的二氯甲烷提取物中分离得到一个新的四环三萜化合物，命名为灵芝酸ＤＭ（ｇａｎｏｄｅｒｉｃａｃｉｄＤＭ，Ｉ）。根据光谱（ＵＶ，ＩＲ，１ＨＮＭＲ，１３ＣＮＭＲ，ＭＳ２ＤＮＭＲ）分析，确定其结构为Ｉ式。同时还分离得到二个已知的灵芝酸类化合物，即灵芝酸Ａ（ｇａｎｏｄｅｒｉｃａｃｉｄＡ，Ｉ）和灵芝酸Ｃ（ｇａｎｏｄｅｒｉｃａｃｉｄＣ，ＩＩ）。     

2,4-二氨基-5-取代苄基嘧啶类化合物的合成及其抑酶活性

本文设计并合成了18个在苄基上带有不同体积取代基的2,4-二氨基-5-取代苄基嘧啶类化合物。测定了这些化合物对乳酪菌二氢叶酸还原酶及对鸡肝二氢叶酸还原酶的表观50%抑制作用。其中2,4-二氨基-5-(3′-羟基-4′-甲氧基)苄基、2,4-二氨基-5-(3′-甲氧基-4′-甲氧乙氧基)苄基嘧啶对上述二氢叶酸还原酶(DHFR)的选择性较好。     

Detailed per-oral small bowel examination vs. enteroclysis. Part II: Radiographic accuracy

Accuracy of the detailed per-oral small bowel series and enteroclysis was compared in 134 patients known to have (or not have) disease of the small bowel. Overall sensitivity of the per-oral examination was 92% and specificity 94%, compared to 94% and 89%, respectively, for enteroclysis. There was no difference between the two in Crohn disease, adhesions, and metastatic disease; however, enteroclysis was thought to be more effective in delineating peritoneal adhesions in patients with obstruction. The authors conclude that while the per-oral study and enteroclysis are equally valid methods of examining the small bowel, the per-oral study is preferable as a screening examination because it requires less time, has fewer side effects, and involves a lower radiation exposure.     

论卫生船舶在登陆作战中的配置

在大规模登陆作战中需要大量的卫生船舶实施各种保障,因此必须对卫生船舶进行合理的配置,保证其既能有效地完成保障任务,又能避免重叠配置造成浪费．卫生船舶的配置应与指挥关系、保障任务战时分类相适应,具体配置时按医院船、卫生运输船、卫生救护艇的保障要求配置,并可根据保障任务的变化进行相应的调整．     

微波和磁疗治疗膝关节骨性关节炎300例

1临床资料①对象:本组骨性关节炎患者300(男130,女170)例,年龄36～78(56±1.0)岁,病程1 mo～10 a,其中左膝120例,右膝112例,双膝68例.临床表现为关节疼痛、僵直、活动受限,偶尔会关节肿胀、关节腔积液.X线表现为关节间隙变窄,关节软骨下骨质致密,骨密度增高,骨小梁有断裂,髁间嵴变尖及髌骨后缘和外侧缘增生形成骨刺[1].