中药苦丁茶的化学模式识别研究(Ⅱ)

采用反向传播人工神经网络模式识别技术,对78个苦丁茶样品的高效液相色谱数据进行处理,实现了苦丁茶样品的计算机快速鉴别分类,本法可推广用于其他中药的鉴定。     

反相高效液相色谱法测定兔血浆中盐酸小檗碱的浓度

目的:建立血浆中盐酸小檗碱浓度的测定方法。方法:采用反相高效液相色谱内标法,色谱柱为DikmadiamonsilTMC18,流动相为乙腈-0.1mol/L磷酸二氢钾溶液-十二烷基硫酸钠(50∶50∶0.06),流速为1ml/min,检测波长为345nm,柱温为40℃,内标物为对二甲氨基苯甲醛。结果:盐酸小檗碱检测浓度在20.5～656ng/ml范围内线性关系良好(r=0.9999),平均回收率为99.14%,平均RSD为3.78%。结论:该方法灵敏度高、专属性强,可用于盐酸小檗碱的药动学研究。     

浙江省精神病医院省级专项经费投入的卫生经济学评估

目的评估浙江省精神卫生专项经费对精神卫生专业机构的卫生经济学效果.方法通过对省内15家接受精神卫生专项经费资助和13家未接受资助的精神卫生专业机构的对比,比较其5年来在服务功能、经济效益和资产结构方面差异以及资助前后的增长率.结果专项经费资助使受资助精神卫生专业机构在服务功能、经济效益、资产结构和职工收入等方面普遍获益,尤其是门诊、住院服务功能,医疗收入和职工收入,固定资产的获益更为明显.结论本次经费有助于使受资助精神卫生专业机构走上更加良性化运作的道路,符合成本效益原则.     

Impact of hollow-fiber membrane surface area on oxygenator performance: Dideco D903 Avant versus a prototype with larger surface area

This study compares the gas transfer capacity, the blood trauma, and the blood path resistance of the hollow-fiber membrane oxygenator Dideco D 903 with a surface area of 1.7 m2 (oxygenator 1.7) versus a prototype built on the same principles but with a surface area of 2 m2 (oxygenator 2). Six calves (mean body weight: 68.2 +/- 3.2 kg) were connected to cardiopulmonary bypass (CPB) by jugular venous and carotid arterial cannulation, with a mean flow rate of 4 l/min for 6 h. They were randomly assigned to oxygenator 1.7 (N = 3) or 2 (N = 3). After 7 days, the animals were sacrificed. A standard battery of blood samples was taken before the bypass, throughout the bypass, and 24 h, 48 h, and 7 days after the bypass. The oxygenator 2 group showed significantly better total oxygen and carbon dioxide transfer values throughout the perfusion (p < .001 for both comparison). Hemolytic parameters (lactate dehydrogenase and free plasma hemoglobin) exhibited a slight but significant increase after 5 h of bypass in the oxygenator 1.7 group. The pressure drop through the oxygenator was low in both groups (range, 43-74 mmHg). With this type of hollow-fiber membrane oxygenator, an increased surface of gas exchange from 1.7 m2 to 2 m2 improves gas transfer, with a limited impact on blood trauma and no increase of blood path resistance.     

Video urodynamic findings in men with the central cord syndrome

PURPOSE: The central cord syndrome reportedly has a favorable prognosis and rehabilitation outcome. However, to our knowledge the status of the lower urinary tract in patients with the central cord syndrome is unclear. We report on 22 men with the central cord syndrome who were evaluated by video urodynamics. MATERIALS AND METHODS: From 1986 to the present we identified 22 men with a mean age of 51 years who had the central cord syndrome and were included in the Houston Veterans Affairs spinal cord registry. All patients underwent video urodynamic evaluation a mean of 34.5 months after injury. RESULTS: Video urodynamic testing for vesicourethral dysfunction was normal in 3 patients, while it showed bladder outlet obstruction secondary to benign prostatic hyperplasia in 2, detrusor areflexia in 4, external detrusor-sphincter dyssynergia in 11, detrusor hyperreflexia with a synergistic external urethral sphincter in 1 and detrusor hypocontractility in 1. Urinary tract infection recurred in 3 patients with external detrusor-sphincter dyssynergia and urolithiasis developed in 2. CONCLUSIONS: Urodynamic testing revealed a high incidence of external detrusor-sphincter dyssynergia in men with the central cord syndrome. Due to the potential for upper tract deterioration all patients with the central cord syndrome should undergo baseline urodynamic studies. Those at high risk for upper tract deterioration with external detrusor-sphincter dyssynergia or a loss of compliance should be treated more aggressively with clean intermittent catheterization and anticholinergic medication when possible.     

关注会计信息质量--医院应建立资产减值准备

2000年,财政部修订颁行了新的企业会计制度,增加了实质重于形式原则,修订了历史成本原则,充实了谨慎性原则.对会计要素的确认和计量进行了重新定义,要求建立八项资产减值准备.改革对医院会计制度有着重大示范作用,医院会计制度应根据企业会计制度改革的成果,修订补充会计原则和会计信息质量的要求,重新定义会计要素,建立资产减值准备.     

Effects of arsenic trioxide on drug transporting molecules in multidrug resistance malignant neoplasma MR2 cell line

INTRODUCTIONIn recent ye ars, some studies have introducedAs2O3 into the treatment of acute promyelocyticleukemia (APL) with the complete clinical remission(CR) rate of 52.3￣93.7%[1,2]. Studies in vitro haveconfirmed that As2O3 can induce apoptosis of retinoicacid-resistant APL cell line[3]. As2O3 has been also ap-plied in the treatment for refractory primary hepaticcancer [4] with satisfactory result [5]. The drug resis-tance of tumor is correlated with the drug transport-ing molec…     

新生儿重症监护病房中遗传代谢病的临床特点及分析

目的提高临床医生对重症监护病房新生儿期发生的遗传代谢病的认识，提高早期诊断率。方法对2005年5月-2006年2月NICU中新生儿早期原因不明的严重酸中毒、高血钾、猝死、窒息等进行尿气相色谱-质谱仪检测；同时部分检测血乳酸、丙酮酸、血氨等。结果7例早期新生儿分别于出生时15小时、2天、3天、4天、6天发病，诊断为先天性丙酮酸代谢障碍1例、同型半胱氨酸血症1例、有机酸血症2例、戊二酸尿症Ⅱ型1例、酪氨酸血症1例、先天性肾上腺皮质增生症1例。结论NICU应警惕早期新生儿遗传代谢病，可利用目前的技术力量提高诊断率。     

肺癌组织中黑色素瘤抗原-A3基因mRNA的表达及其序列点突变分析

目的检测肺癌组织中黑色素瘤抗原-3基因(MAGE-A3)mRNA的表达。方法用逆转录-套式聚合酶链反应(RT-PCR)对31例肺癌患者癌组织和相应癌旁组织MAGE-A3mRNA表达情况进行测定;PE-377DNA测序仪对5例10个RT-PCR扩增产物中的目的基因片段进行DNA序列测定。结果31例肺癌患者癌组织中26例表达MAGE-A3mRNA,阳性率为83.9%;相应的癌旁组织均未表达。DNA序列测定证明PCR扩增产物中目的基因片段均为MAGE-A3cDNA序列,所测5例样本中4例样本有两个相同位置的碱基发生了点突变(C2773→T2773;G2807→A2807),导致一个氨基酸残基改变(E143→K)。结论MAGE-A3mRNA在肺癌中呈高比例表达,提示此抗原有可能作为肺癌患者免疫治疗的靶抗原。我国肺癌患者中存在MAGE-A3基因个别位点的变异。