短程兰索拉唑、克拉霉素和阿莫西林三联疗法根除幽门螺杆菌在东南亚患者中的

测定和比较含兰索拉唑、克拉霉和阿莫西林的5日tid疗法和7日bid疗法根除幽门螺杆菌（H.pylori)疗效,方法：本研究为随机,双盲,对照研究。胃窦和胃体部活检经组织学检查和快速尿素酶试验确诊为H．pylori感染的患者内入研究,患者分别接受克拉霉素500mgtid,阿莫西林500mgtid和兰索拉唑每日30mg治疗5天（LAC5组）或克拉霉素500mgbid,阿莫西林500mgbid和兰索拉唑每日30mg治疗7天（LAC7组）。治疗结束至少4周后,用组织学检查和快速尿酶素试验评估H．pylori是否成功除,胃窦和胃体部活检H．pylori阴性定义为H．pylor根除,结果：108例胃患者纳入研究,LAC5组有4例患者失访;LAC7组2例患者失访,2例患者对药物不能依从。按意图治疗分析,LAC5组的根除率为85．2％[46/54,95%可信区间（CI):72.9%,93.4%],LAC7组的根除率为87．0％（47／54,95％CI：75．1,94.6%).按方案分析,LAC5组的根除率为92．90％（46／50,95％CI：80．8％,97．8％）,LAC7组的根除率为94．0％（47／50,95％CI：83.5%,98.7%),两种疗效对患者均很适宜,除LAC7组2例外,其余患者均服完规定的药物,两种疗法的副作用均较轻微,没有患者因对药物不耐受而中断治疗,最常见的副作用是味觉改变（LAC5组：64．7％,LAC7组：78．8％）。少数患者有腹泻,恶心和厌食,结论：LAC5tid疗法和LAC7bid疗法均有具有良好受性的治疗方案,根除H．pylor的疗效高。     

Interleukin-12 inhibits murine graft-versus-host disease

Interleukin-12 (IL-12) is a potent immunostimulatory cytokine and an inducer of type-1 T-helper cell activity and of cytotoxic T lymphocyte and natural killer cell function. We report here the paradoxical observation that a single injection of 4,900 IU of recombinant murine IL-12 inhibits acute graft-versus-host disease (GVHD) in a fully major histocompatibility complex (MHC) plus multiple minor antigen-mismatched bone marrow transplantation (BMT) model (A/J-->B10). The protective effect was enhanced by administration of T-cell-depleted host-type BM cells, and complete donor-type lymphohematopoietic reconstitution was observed in most animals. Treatment with a protective course of IL-12 led to increased serum interferon-gamma (IFN-gamma) levels as compared with those for GVHD controls at early time points, when IFN-gamma was produced predominantly by host-type natural killer cells, but led to almost complete inhibition of the later GVHD-associated increase in serum IFN-gamma levels, when IFN-gamma is produced predominantly by CD4+ T cells. Furthermore, IL-12 treatment was associated with marked alterations in the kinetics of donor T-cell expansion. Reductions in donor CD4+ and CD8+ T cells were observed in the spleen on day 4 post- BMT, but a marked increase in donor CD8+ cells was observed on day 7. Unlike broadly immunosuppressive methods for inhibiting GVHD, which are associated with loss of antileukemic effects, IL-12 has the potential to mediate antileukemic effects of its own; therefore, the GVHD- inhibitory effects of IL-12 described here suggest a potential application for this cytokine in clinical BMT.     

短程兰索拉唑、克拉霉素和阿莫西林三联疗法根除幽门螺杆菌在东南亚患者中的疗效——5日一日三次疗法和7日一日两次疗法

目的:测定和比较含兰索拉唑、克拉霉素和阿莫西林的5日tid疗法和7日bid疗法根除幽门螺杆菌(H.pylori)的疗效.方法:本研究为随机、双盲、对照研究.胃窦和胃体部活检经组织学检查和快速尿素酶试验确诊为H.pylori感染的患者纳入研究.患者分别接受克拉霉素500 mg tid、阿莫西林500 mg tid和兰索拉唑每日30 mg治疗5天(LAC5组)或克抗雷素500 mg bid、阿莫西林500 mg bid和兰索拉唑每日30 mg治疗7天(LAC7组).治疗结束至少4周后,用组织字检应查和快速尿素酶试验评估H.Pylori是否成功根除,胃窦和胃体部活检H.Pylori阴性定义为H.Pylori根除.结果:108例患者纳入研究.LAC5组有4例患者失访;LAC7组2例患者失访,2例患者对药物不能依从.按意图治疗分析,LAC5组的根除率为85.2%[46/54,95%可信区间(CI):72.9%,93.4%],LAC7组的根除率为87.0%(47/54,95%CI:75.1%,94.6%);按方案分析,LAC5组的根除率为92.0%(46/50,95%CI:80.8%,97.8%),LAC7组的根除率为94.0%(47/50,95%CI:83.5%,98.7%).两种疗法对患者均很适宜,除LAC7组2例外,其余患者均服完规定的药物.两种疗法的副作用均较轻微,没有患者因对药物不耐受而中断治疗.最常见的副作用是味觉改变(LAC5组:64.7%,LAC7组:78.8%).少数患者有腹泻、恶心和厌食.结论:LAC5 tid疗法和LAC7 bid疗法均为具有良好耐受性的治疗方案,根除H.Pylori的疗效高.     

Radiographic damage in large joints in early rheumatoid arthritis: relationship with radiographic damage in hands and feet, disease activity, and physical disability

An assessment of the onset of radiographic damage in the large joints (hip, knees, shoulders, elbows, ankles and tarsus) in patients with early rheumatoid arthritis, and the relationship of the progression of large joint damage with joint damage in hands and feet, with physical disability, and with cumulative disease activity, was performed in a prospective 6 yr follow-up study. Large joint damage appeared to be an early phenomenon with 20% of the patients having some damage in at least one large joint within 1 yr, and 50% of the patients within 6 yr after disease onset. Radiographic damage in large joints was significantly related to the damage in hands and feet, the physical disability index, and the cumulative disease activity. The initial disease activity at study entry was the only prognostic factor that reached significance.      

Diagnostic equivalence of conventional and fast spin echo magnetic resonance imaging of the anterior cruciate ligament of the knee

Many techniques and pulse sequences have been devised for the assessment of the anterior cruciate ligament. The present study compares fast spin echo (FSE) imaging to conventional spin echo imaging at a field strength of 1.5 T in an effort to determine if these sequences are diagnostically equivalent. Where available, arthroscopy was also done. A total of 52 patients were imaged using both FSE and conventional spin echo sequences. Eight volunteers were used as controls. Arthroscopy was performed on 10 patients. The anterior cruciate ligament was assessed in a blinded fashion by three radiologists. The Kappa statistic was then used to determine the percentage agreement between FSE and conventional spin echo imaging. Fast spin echo sequencing demonstrated a sensitivity of 100%, a specificity of 94.8% and an accuracy of 96.3% when compared to arthroscopy. Conventional spin echo imaging and arthroscopy had a sensitivity of 100%, specificity of 84.6% and an accuracy of 88.9%. The remaining 34 patients who did not undergo arthroscopy were followed clinically because clinical and imaging findings were not suggestive of ACL tears. These demonstrated 72% agreement between FSE and conventional spin echo imaging using the Kappa statistic, with regards to calling ACL normal or having only a low-grade partial tear. Fast spin echo imaging produces images of the anterior cruciate ligament that have similar diagnostic accuracy to conventional spin echo images (P<0.05) within a much shorter scan time. These results however, require further validation in a larger group, preferably with arthroscopic correlation.     

Induction of the apoptosis-promoting protein Bak by perillyl alcohol in pancreatic ductal adenocarcinoma relative to untransformed ductal epithelial cells

Perillyl alcohol has antitumor activity toward pancreas and other cancers with low toxicity. Here, we have investigated the mechanism of action responsible for the differential sensitivity of malignant versus non-malignant pancreatic cells to the drug. We report that the rate of apoptosis is over 6-fold higher in perillyl alcohol-treated pancreatic adenocarcinoma cells than in untreated cells, and that the effect of perillyl alcohol on pancreatic tumor cells is significantly greater than its effect on non-malignant pancreatic ductal cells. Moreover, the perillyl alcohol-induced increase in apoptosis in all of the pancreatic tumor cells is associated with a 2- to 8-fold increase in the expression of the proapoptotic protein Bak, but Bak expression is not affected by perillyl alcohol in non-malignant cells. Thus, the antitumor activity of perillyl alcohol toward pancreatic cancers may be due to preferential stimulation of Bak-induced apoptosis in malignant versus normal cells. Bak may, therefore, be a useful biomarker for the chemopreventive and therapeutic effects of perillyl alcohol.      

Comparison of Infasurf (calf lung surfactant extract) to Survanta (Beractant) in the treatment and prevention of respiratory distress syndrome

OBJECTIVE: To compare the relative safety and efficacy of Infasurf (calf lung surfactant extract; ONY, Inc, Amherst, NY, IND #27169) versus Survanta (Beractant, Ross Laboratories, Columbus, OH) in reducing the acute severity of respiratory distress syndrome (RDS) when given at birth and to infants with established RDS. DESIGN: A prospective, randomized, double-blind, multicenter clinical trial. SETTING: Thirteen neonatal intensive care units participated in the treatment arm: seven of these concurrently participated in the prevention arm. PATIENTS: The treatment arm enrolled infants of 相似文献   

综述：α-葡萄糖苷酶抑制剂可改善血糖控制，但对2型糖尿病重要预后的效果尚不确定

问题：α-葡萄糖苷酶抑制剂能够有效地改善2型糖尿病患者的血糖控制吗？[编者按]     

普鲁卡因对缺血性视网膜脉络膜cAMP变化的实验研究

目的 :观察普鲁卡因对缺血性视网膜脉络膜 c AMP变化的研究。方法 :新西兰白兔 10只 2 0只眼 ,孟加拉玫红耳静脉注射后 ,立即用间接检眼镜为光源 ,先后照射双眼鼻侧视网膜脉络膜血管 ,持续 6分钟 ,制成光化学反应的光栓视网膜脉络膜血管阻塞缺血模型。随机分正常组、生理盐水组 ( normal saline,NS)、普鲁卡因组 ( procaine,PR)、樟柳碱组 ( anisodine,AS)和复方樟柳碱组 ( com-pound anisodine,CA) ,各组均治疗 2周 ,每组 4只眼测定 c AMP含量。结果 :缺血后各组 c AMP含量均比正常组降低 ,其中 CA组降低最显 ,次为 PR与 AS组 ,三组与 NS组比均降低显著 P<0 .0 1,PR与 AS组比无显著差异。结论 :由于 CA降低 c AMP比 AS显著P<0 .0 5 ,从而减少肾上脉素合成 ,减轻血管痉挛 ,故 CA的优越性与 PR也降低 c AMP密切相关。