BERH-2肝癌大鼠红细胞膜K~+依赖性磷酸酶的活性

BERH-2肝癌大鼠红细胞膜K~+依赖性磷酸酶活性与正常大鼠无显著差异。但是,K~+对酶的变构激活及F~-对酶的变构抑制却差别显著,其Hill系数不同于正常大鼠。此差别在0.10mg/ml Triton X-100存在时消失,因此,Hill系数的差异可能由于BERH-2肝癌大鼠红细胞膜中脂质成分与正常的不同所致。     

赴泰国旅客旅行健康知识及行为调查分析

目的了解石家庄机场赴泰国旅客对当地高发传染病的认知现状和个人防护能力情况,为制定高风险航线往来旅客的风险分析方案提供依据。方法采取随机抽样方法,对由石家庄机场赴泰国游的旅客在知情同意的情况下进行面对面的问卷调查,所有资料录入Excel后采用SPSS 13.0软件进行统计分析。结果回收的503份有效调查问卷中,本科学历、收入中等偏上、第一次出境旅游的中青年人群为主体,具有目前出境游人群的代表性;有效问卷中,65.8%的人选择通过旅行社了解赴泰国旅行注意事项;大多数旅客集中选择泰国是"登革热"(42.5%)和"疟疾"(25.2%)的流行区域,而选择"痢疾"和"霍乱"的只占14.1%和11.9%;58.1%的旅客出境前未接种过任何疫苗;23.7%旅客不知道应该到哪里进行旅行前的健康咨询,13.1%不清楚归国后如有发热、皮疹等传染病症状该如何就医。结论评价口岸传染病防控能力现状,逐步构建主动型卫生检疫查验系统;完善风险评估机制,有针对性地对重点航班和人群采取多举措宣教以提升防病意识;应多部门联合持续加强出入境人员的传染病宣教、监测和防控工作。     

Effects of Internet-Based Nutrition and Exercise Interventions on the Prevention and Treatment of Sarcopenia in the Elderly

Effective nutrition and exercise interventions may improve sarcopenia in the elderly. The purpose of our study was to investigate the effectiveness of Internet-based nutrition and exercise interventions in the elderly with sarcopenia. Participants were divided into 4 groups: control, nutrition, exercise, and comprehensive (nutrition plus exercise) groups; there was at least 50 participants in each group. Our trial lasted 12 weeks. We conducted dietary and exercise interventions through an app and collected feedback from the participants every three weeks. Information on the diet, skeletal muscle mass, and muscle function was collected before and after the interventions. The comprehensive group had higher high-quality protein intake than the control (p = 0.017) and exercise (p = 0.012) groups. After the interventions, we obtained differences in skeletal muscle mass, skeletal muscle mass/height², skeletal muscle mass/weight, muscle mass/BMI, and skeletal muscle mass/body fat percentage (p < 0.05). Changes in average daily energy and total daily protein intakes were not significantly different; however, there was an overall improvement in the intervention groups relative to baseline data. There were no changes in the average daily time of moderate physical activity. The Internet was an effective tool of nutrition intervention in the elderly with sarcopenia. The Internet-based nutrition intervention improved high-quality protein intake and skeletal muscle mass in the elderly with sarcopenia.     

经皮冠状动脉介入术治疗急性冠脉综合征综合评价指标的构建

目的:构建急性冠脉综合征(acute coronary syndrome,ACS)患者接受经皮冠状动脉(冠脉)介入术(percutaneous coronary intervention,PCI)的效果评价指标及综合效果指数.方法:应用德尔菲法结合综合指数法确定评价PCI对ACS疗效的指标及权重.结果:经2轮德尔菲专家...     

清利塞鼻洗液在内镜鼻窦手术后的应用

目的：研究清利塞鼻洗液术腔冲洗对内镜鼻窦术后鼻黏膜形态和功能的影响。方法：将Ⅰ型2、3期及Ⅱ型慢性鼻窦患者85 例于行内镜鼻窦术后,随机分为清利塞组与对照组;冲洗术腔时清利塞组用清利塞鼻洗液,对照组按传统方法用地塞米松+硫酸庆大霉素;观察其术腔清洁时间、术腔黏膜病变出现时间、上皮化时间以及术后症状改善及疗效等。结果：两组在术腔清洁时间及上皮化时间组间差异有统计学意义（P＜0.0005,0.01＜P＜0.025）,术腔黏膜病变出现时间差异无统计学意义(P＞0.05),1年后临床疗效及术后症状、体征改善清利塞组优于对照组（P＜0.05）。结论：清利塞鼻洗液在内镜鼻窦手术后术腔冲洗较传统冲洗方法有显著的优点,值得进一步研究应用。     

药物洗脱支架在后循环动脉狭窄治疗中的应用

目的 研究在后循环动脉狭窄治疗中应用药物洗脱支架的安全性和疗效性.方法 经常规造影证实椎动脉狭窄者30例,接受支架置入治疗者19例.局麻或全麻下经右股动脉以Seldinger技术置入6 F导管鞘,在相应导丝辅助下使导引导管进入锁骨下动脉或椎动脉,血管造影后沿导引导管插入0.014英寸、300 cm或205 cm导丝至狭窄远端,经此微导丝交换置入相应规格球囊扩张式CypherTM支架(10例)或TAXUSTM支架(9例).结果 19例患者手术均成功,无死亡和并发症,置入支架贴壁良好,血流明显改善,狭窄远端分支血管(小脑后下动脉等)充盈明显改善,狭窄率由原来的平均87.5%降至平均5.2%.15例表现为眩晕症状的患者术后症状消失12例(80%),改善3例.表现为共济失调的6例患者术后共济运动基本正常4例,明显改善2例,表现为小脑性语言障碍的1例患者术后明显改善.完成至少1次造影随访的患者15例,经DSA证实无再狭窄发生.所有患者门诊随访,最长18个月.结论 药物洗脱支架在后循环动脉狭窄的治疗中安全、有效,在短期内能防止术后再狭窄,长期疗效需进一步观察,需要大样本的随机对照研究进一步证实.     

磁共振成像对硬脊膜动静脉瘘的诊断及随访价值

目的：讨论MRI对硬脊膜动静脉瘘（SDAVF）的初步诊断及随访价值。方法：回顾性分析资料完整的13例SDAVF患者的手术前后或栓塞前后MRI资料。结果：13例患者中手术前或栓塞前诊断为椎间盘突出7例,脊髓炎3例,神经根炎1例,正确诊断2例,误诊率高。分析MRI片提示病灶区脊髓呈现平均连续5个椎体节段长T2信号,T1、T2加权像髓外硬膜下可见密集的血管流空影。10例患者在T1增强中见到迂曲扩张的冠状静脉丛,术后或栓塞后3－6个月复查MRI,长T2信号及血管流空影消失。结论：MRI对硬脊膜动静脉瘘（SDAVF）的诊断治疗具有较可靠的初诊及随访意义,脊髓长T2信号及血管流空影对诊断有意义。     

怀槐异黄酮抗妊娠小鼠肝损伤的作用

目的观察怀槐异黄酮对雌激素诱导小鼠肝损伤的保护作用并探讨其作用机制。方法选择BALB/c孕鼠随机分为正常组、溶剂组、肝损伤模型组和大、中、小剂量异黄酮给药组,每组10只,给药组从受孕第7天开始分别灌胃异黄酮,每天1次,共7 d。除正常组外,各组从妊娠10 d起连续4 d皮下注射17-α-乙炔雌二醇1.0μg/g体重。常规检测孕鼠血清丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)活性水平和肝脏组织病理。结果给异黄酮的孕鼠血清ALT、AST活性水平显著下降,与肝损伤模型孕鼠比较差异有统计学意义(P<0.05),其肝脏组织病理学结果也证实给药孕鼠肝脏病理明显改善。结论怀槐异黄酮对雌激素诱导的小鼠肝损伤有显著保护作用。     

麻醉诱导前使用右美托咪啶的婴幼儿体外循环手术的护理配合

目的 探讨麻醉诱导前使用右美托咪啶的婴幼儿体外循环手术的护理配合.方法 选取60例先心病患儿行体外循环下心内直视手术治疗患儿为研究对象,数字法随机将其分为两组各30例,对照组给予常规手术治疗及护理,观察组在麻醉诱导前给予右美托嘧啶泵注及相应针对性护理配合,观察两组患者临床疗效和患儿家属对护理的满意度.结果 经过一定的护理配合治疗后,结果显示两组患儿术后心脏指数(CD、心搏指数(SI)、左心室射血分数(LVEF)、左室作功指数(LCWI)等心功能指标差异有统计学意义(P＜0.05);观察组患儿家属的满意度(96.7％)显著高于对照组(80.0％),差异有统计学意义(P＜0.05).结论 麻醉诱导前使用右美托咪啶的婴幼儿体外循环手术,加强术前充分护理准备,提高术中娴熟配合技巧,严密观察病情,能确保手术治疗效果,提高患儿家属的护理满意度.     

One‐Year Clinical Outcome of a Randomized Trial of Polymer‐Free Paclitaxel‐Eluting Stents Versus Biodegradable Polymer‐Based Rapamycin‐Eluting Stents in Patients with Coronary Heart Disease

Background: More widespread use of drug‐eluting stents (DES) to treat coronary heart disease (CHD) has recently generated more attention to thrombosis, which was relative to the polymer. Polymer‐free and biodegradable polymer‐based stents are more frequently studied, but their efficacy on preventing detrimental clinical events is unclear. Methods and Results: To assess whether polymer‐free paclitaxel‐eluting stent (YINYI stent) was noninferior or equivalent to biodegradable polymer‐based rapamycin‐eluting stents (EXCEL stent) in preventing detrimental clinical cardiovascular events, a total of 167 consecutive CHD patients requiring DES implantation were randomly divided into the YINYI group (n = 82) and the EXCEL group (n = 85). The primary end‐point was major adverse cardiac events (MACE). The secondary end‐points included stent thrombosis events, all‐cause mortality, and rehospitalization. The study was designed to test the noninferiority or equivalence of the YINYI stent compared with the EXCEL stent with respect to one‐year MACE according to a noninferiority or equivalence margin of 0.1. One‐year MACE was 6.10% in the YINYI group versus 5.88% in the EXCEL group. The lower limit of the one‐sided 95% confidence interval was ?0.0582 (P = 0.002 from the test for noninferiority). The 95% confidence interval for the equivalence test was [?0.0698, 0.0742] (P₁=0.004 and P₂=0.007 from 2 times the 1‐sided test for equivalence). There was no statistically significant difference in thrombosis events, all‐cause death, and rehospitalization (all P > 0.05). Conclusions: In this small randomized trial, polymer‐free paclitaxel‐eluting stents appear to be noninferior or equivalent to biodegradable polymer‐based rapamycin‐eluting stents. (J Interven Cardiol 2012;25:604–610)