Role of the liver in the disposition of intravenous nitroglycerin in the rat

Previous studies have indicated that the liver is the main site of nitroglycerin (NTG) elimination when the drug is systematically infused. To examine this hypothesis, we measured the apparent systemic clearance (Cls) of nitroglycerin in anesthesized rats receiving a constant intravenous infusion at a dose of 100 micrograms per kg per min. Animals were divided into shunt and sham groups; the former had undergone a portal vein ligation 10 days prior to the study, while the latter was subjected to a sham operation. On the study day, half of the animals of each group also received probenecid at 200 mg/kg, i.v., a drug previously reported to inhibit organic nitrate ester reductase (ONER) activity in rat liver. Arterial NTG samples were obtained at 41, 43 and 45 min of infusion in all four experimental groups; Cls was 439 +/- 32 ml per kg per min (mean +/- S.E.) in sham, 460 +/- 44 in sham and probenecid, 477 +/- 39 in shunt, and 461 +/- 34 in shunt and probenecid animals. During NTG infusion, hepatic blood flow (measured with a constant infusion of indocyanine green) was decreased markedly in shunted rats as was liver/body weight, indicating hepatic atrophy. The specific activity of hepatic ONER was similar in all four groups. In spite of marked differences in hepatic blood flow and hepatic mass, the Cls was similar in all four groups. The liver does not appear to be a major site for the elimination of systemic nitroglycerin as hitherto assumed.     

半导体激光治疗老年人压疮疗效观察

目的探讨半导体激光局部照射治疗老年人压疮疗效.方法:收集2012年1月-2015年6月48例压疮患者,分为半导体组和常规组各24例.常规组采用常规治疗,半导体组采用半导体激光加常规治疗,10 d为1个疗程,不超过3个疗程.疗程结束后比较两组疗效.结果:半导体组压疮愈显率为83.33％,创面愈合时间为(12.75±5.51)d,常规组分别为54.17％和(19.63±8.65)d,组间差异有统计学意义(P＜0.05),两组均未见不良反应.结论:半导体激光加常规治疗压疮效果肯定,无明显不良反应,且操作简便.     

Nifedipine in the treatment of hypertension in the elderly

The effect of nifedipine monotherapy, retard tablets, 20 mg bid, was evaluated in 23 hypertensive patients, mean age, 79 +/- 2 years. Twenty-one patients completed an eight-week study. Blood pressure (BP) decreased to 160/90 mm Hg in 15 patients; in four additional patients diastolic BP dropped by 15% to 28%. In a subset of five patients with isolated systolic hypertension, a significant reduction in systolic BP was noted. Side effects were relatively mild and only two patients discontinued the study. The results suggest that nifedipine monotherapy offers an alternative, logic, therapeutic approach to hypertension in the elderly.     

Problems in the evaluation of hypnosis in the treatment of alcoholism

Although hypnotherapy has been applied to alcoholism for over a century and is accepted by the AMA as a medically valid technique, the effectiveness of hypnosis in treating alcoholics remains controversial. Systematic evaluation has been hampered by the unique role of hypnosis as a cultural artifact, by problems in defining and verifying hypnotic intervention, by individual and situational variation in hypnotizability, and by difficulty in separating hypnosis from the therapies to which it is applied. Clinicians using hypnosis are likely to continue to base their claims for its effectiveness on intuition, especially since no study has demonstrated that hypnotherapy is contraindicated for patients requesting its use.     

Pharmacological analysis of the participation of the catecholaminergic system in the development of the abstinence syndrome in rats

The behavioural activity of rats in "the open field" was studied. It was revealed that rats alcoholized for 8 months do not practically differ in their behavioural indicators from the intact ones. After the discontinuation of alcohol marked disturbances appear in their behaviour, that are arrested by apomorphine (0,1 mg/kg). In intact animals dopamine (50 mkg into the brain ventricles) induces behavioural disorders similar to those in rats during abstinence. Noradrenaline does not induce similar disorders. A conclusion is made on the dopaminergic nature of disorders in the behaviour of rats in the state of alcohol abstinence.     

HACCP在学校集体食堂卫生管理中的应用研究

目的 通过HACCP在学校集体食堂管理中的应用,提高食品卫生水平,保障学生的身体健康。方法 HACCP原则。结果 食品卫生达到较高水平,极大地减少了食物中毒的发生。结论 提示HACCP原则可在学校集体食堂的卫生管理中发挥有效作用。     

The role of the gut flora in the reduction of sulphinpyrazone in the rat

Sulphinpyrazone underwent both reduction to a sulphide and oxidation to a sulphone after parenteral administration to normal Wistar rats. Oral administration was associated with a bioavailability of about 75% and with a 3-fold greater formation of the sulphide. However, no sulphide was detected in the plasma after oral administration of sulphinpyrazone to germ-free (BD/X) rats or normal rats treated with oral antibiotics. In vitro studies showed that the major site of reduction of sulphinpyrazone was the contents of the hind gut with little activity detected in the liver or other tissues. The sulphide was oxidised in vivo to sulphinpyrazone and small amounts of sulphone, while the latter underwent only slight reduction to sulphinpyrazone, but did not give detectable levels of the sulphide. These data suggest that the gut microflora are the main site of reduction of sulphinpyrazone in the rat in vivo.     

The role of the dopaminergic system in the modulation of the acoustic startle response in the rat

The (+) and (-) isomers of 3-(3-hydroxyphenyl)-N-propylpiperidine (3-PPP) (2-32 mg/kg) were tested for their effects on the acoustic startle response in the rat and these effects were compared with those of apomorphine and haloperidol. Both startle amplitude and startle latency were recorded. (+)-3-PPP produced a dose-dependent prolongation of startle latency. No other significant effects of the 3-PPP isomers were observed. Apomorphine (0.75-3 mg/kg) produced a dose-dependent increase in startle amplitude concurrent with a dose-dependent prolongation of startle latency. Both these effects were blocked by haloperidol. Haloperidol by itself produced a significant decrease in startle amplitude at the highest dose used (1.6 mg/kg). These and other data suggest that activation of both dopamine D-1 and dopamine D-2 receptors is essential for the stimulatory effects of dopamine receptor agonists on the acoustic startle response in the rat.     

脑卒中恢复期患者社区综合康复的疗效观察

目的：探讨社区开展康复活动对于脑卒中患者肢体功能康复的影响。方法：选取2014年4至10月参与社区“陈睿健康工作室”康复活动的脑卒中恢复期患者50例作为观察组,选取同期延吉社区卫生服务中心门诊的50例脑卒中恢复期患者作为对照组（进行门诊随访、服药、自我康复）。采用知识、信念、行为（KAP）量表对观察组患者进行问卷调查。采用简化Fugl-Meyer肢体运动功能评分表（Fugl-Meyer assessment of motor function,FAM）比较两组患者入组时和入组6个月时的肢体功能恢复情况及对家庭医生（门诊医师）的满意度。结果：入组6个月时,两组患者的FAM均有所改善,观察组FAM得分[上肢（50.92±7.05）分,下肢（33.01±1.37）分]较对照组[上肢（34.85±6.55）分,下肢（25.20±4.88）分]更高,差异有统计学意义（t上肢=11.8215,t下肢=10.8595,P均＜0.01）。观察组患者的满意率为92%（46/50）,明显高于对照组的30%（15/50,P＜0.05）。结论：在社区开展康复活动可以促进脑卒中患者肢体功能的康复,提高患者的满意度。     

品管圈活动在手术室院内感染控制中的应用效果观察

目的探讨品管圈活动在手术室院内感染控制中的应用效果观察。方法选取2015年2月至2017年1月期间我方医院手术室组建相应主题的品管圈,根据院内感染因素实施相应的对策。采用随机数字表法均分为两组。比较实施前后医院流水洗手七步法操作的不规范性情况发生率,采用医院自拟调查问卷对相关得分进行统计。结果实施品管圈加强手术室院内感染控制后平均7 d洗手七步法操作的不规范例数为(21.5±12.49)次,与控制措施实施前相比显现减少(P <0.05)。结论利用品管圈活动可有效规范成员的在手卫生,减少院内感染,提升质量控制。     

替普瑞酮治疗老年慢性浅表性胃炎的疗效分析

目的分析替普瑞酮治疗老年慢性浅表性胃炎的疗效。方法100例老年慢性浅表性胃炎患者,通过计算机随机表数字法分为对照组和实验组,每组50例。对照组患者选择西咪替丁作为本次治疗药物,实验组患者选择替普瑞酮作为本次治疗药物。比较两组患者临床疗效、不良反应发生情况以及生活质量。结果实验组治疗总有效率92.00%高于对照组的76.00%,差异具有统计学意义(P<0.05)。实验组不良反应发生率6.00%低于对照组的20.00%,差异具有统计学意义(χ^2=4.332,P=0.037<0.05)。实验组患者治疗后的生活质量评分(68.68±4.11)分高于对照组的(57.73±3.48)分,差异具有统计学意义(t=14.377,P=0.000<0.05)。结论对于老年慢性浅表性胃炎疾病患者,选择替普瑞酮进行治疗不仅疗效更为理想,而且还不易增加患者的用药不良反应,有利于提高患者的生活质量,建议进一步推广。