Renal cell carcinoma metastases to gallbladder

A 74-year old man underwent a radical cholecystectomy for presumed gallbladder cancer. The histology of the resected specimen in fact revealed the lesion to be metastatic renal cell carcinoma from his resected right nephrectomy performed 14 years previously.     

麦冬多糖对正常和实验性糖尿病小鼠血糖的影响

目的：研究麦冬多糖对正常和实验性糖尿病小鼠血糖的影响。方法：昆明种小鼠４０只，分成４组，分别用麦冬多糖（１００和３００ｍｇ／ｋｇ）、优降糖（２．５ｍｇ／ｋｇ）和等体积生理盐水（２ｍｌ／只）灌胃，测定各组正常小鼠的血糖水平及以葡萄糖（２ｇ／ｋｇ）、四氧嘧啶（７０ｍｇ／ｋｇ）、肾上腺素（０．０２ｍｇ／ｋｇ）所致小鼠高血糖模型的血糖水平。结果：剂量为１００和３００ｍｇ／ｋｇ的麦冬多糖灌胃对葡萄糖、四嘧啶     

Assessment of acute renal failure patients treated in our nephrology clinic between 1996 and 2002

Acute renal failure (ARF) is a cause of high morbidity and mortality associated with long hospital stay, and expensive treatment. The initial approach to patients with ARF should be focused on preventing future injury to the kidney. Two hundred eighty-three ARF patients, treated from January 1996 to June 2002, were retrospectively investigated for their etiology, clinic features, and laboratory characteristics, as well as treatment results and mortality rate. The mean age was 52.3 +/- 18.7 years. Patients with hospital-acquired ARF comprised 38.8% of the sample. Renal causes (60%) were responsible for most ARF patients. They were medical (63.95%), surgical (23.67%), and obstetric (12.4%) causes. Twenty-five percent of patients with ARF had multiple etiologies. Hemolysis elevated liver enzymes low platelets (HELLP) syndrome was seen in the most of the obstetric-related ARF cases. Signs of hypervolemia were present in approximately 50% of the cases. Oliguric patients comprised 59.7% of the sample, and the mean time to oliguria was 5.2 +/- 4.1 days. The necessity of dialysis was greater in oliguric patients (42.6%) and the ratio of complete/partial improvement (82.2%) was greater among non-oligoanuric patients. However, there was no significant difference between mortality rates. Irreversible renal insufficiency did not develop in the non-oliguric cases. Also, 7.4% of ARF patients died, with the main causes being infection (31.8%) and cardiovascular events (27.2%). Medical problems are important in the etiology of ARF as well as obstetric cases. The mortality rate was low in our cases, a situation that may be explained by medical causes being of importance in the etiology. We are of the opinion that early referral of patients to a nephrologist and following treatment in the nephrology clinic may positively affect the outcome.     

A twelve week exercise program improves the psychological status, quality of life and work capacity in hemodialysis patients

BACKGROUND: Patients with chronic renal failure (CRF) are restricted in physical, emotional and social dimensions of life due to their treatment and their comorbid medical conditions. We aimed to evaluate the effects of a 12-week exercise program on the functional capacity, functional mobility, walking capacity, quality of life and depression in patients with renal failure on hemodialysis (HD). METHODS: Twenty patients with renal failure on HD were included and 14 of them completed the study. The patients went through a 12-week exercise program of 90 min/day, 3 days a week. Exercise and walking capacity, functional mobility, psychological status and quality of life were evaluated pre- and post-training. RESULTS: Following the exercise, peak oxygen consumption, exercise duration and peak workload improved significantly (respectively, p=0.006, p=0.002 and p=0.002). There were significant improvements in the sit-to-stand-to-sit test and the 6- min walk test (p<0.001 and p=0.002). There was a significant reduction in the depression score (p<0.001). Both physical component scale (PCS) and mental component scale (MCS) of the Kidney Disease Quality of Life Short-Form 36 (SF-36) questionnaire showed significant increases (respectively, p=0.002 and p=0.004). CONCLUSION: The application of an appropriate exercise program would improve psychological status and quality of life, as well as work capacity in long-term maintenance HD patients.     

用电化学检测器的高效液相色谱法测定血清及尿中速尿的含量

本文报告了用电化学检测器的高效液相色谱法测定血清及尿中速尿含量的方法。样品予处理方法:血清用乙腈除蛋白,尿用蒸馏水稀释50倍。采用作者合成的FD-Val-OH作为内标物。色谱条件为:反相柱,以含35%乙醇的5mmol/L四丁基铵水溶液为流动相(pH7.50),流速1.0ml/min;用电化学检测器,检测电压0.90V:速尿及内标物的保留时间分别为10和15min。通过计算速尿对内标物的峰高比求得速尿含量。血清及尿中的最低检测浓度分别为16和9ng/ml。标准曲线在0.25～5ng/μl(血清)、0.5～10ng/μl(尿)的浓度范围内呈线性关系。血清及尿中回收率分别为100.5%和100.6%。变异系数在4.6%以下。     

电化学方法研究环丙沙星及其镁、锰络合物与脱氧核糖核酸的相互作用

用电化学的方法,研究环丙沙星(CPFX)及其镁、锰络合物与脱氧核糖核酸(DNA)的相互作用及其极谱伏安行为。结果在0.1mol·L^-1NH₃-NH₄Cl(pH9.2)溶液中,环丙沙星可与DNA作用,产生一新的极谱峰 Ep=-1.72V(vsAg/AgCl),在有Mg²⁺或Mn²⁺存在时则生成三元络合物,产生一电位更负的新峰,峰电位Ep=-1.78V,提示Mg²⁺或Mn²⁺离子参与药物与DNA的作用。对它们的还原峰性质研究表明,电极还原反应是完全不可逆的,电流具有吸附性。本文还探讨了电极还原机理,认为参与电极还原的是三元络合物中的环丙沙星分子,进一步推测CPFX-Mg是嵌入DNA的双螺旋结构中。     

3H-1,2-二氢-1-吡里酮衍生物的合成

发现3 H-1,2-二氢-1-吡咯里嗪酮具有明显的抗炎镇痛作用。用Friedel-Crafts酰化和Dieckmann缩合等反应制备了该酮的一些衍生物,其中五个未见于文献报道。药理实验证明,这些化合物均有不同程度的抗炎镇痛作用。