温度对脐血清集落刺激活性水平的影响

脐带血作为造血干、祖细胞的来源之一,已日益受到人们的关注。本实验供助粒、巨噬祖细胞微量培养技术观察了不同温度、不同时间对脐血清ＣＳＡ水平的影响。结果显示,室温与４℃保存条件下,第１、３、７天之间ＣＳＡ水平无显著性差异（Ｐ〉０．０５）;第７天后开始下降,第１４天明显下降（Ｐ〈０．０１）;第２８一在活性基本消失。－２０℃保存条件下第１、３、７、１４、２８天之间均无显著性差异（Ｐ〉０．０５）。这一结果对     

肾综合征出血热患者血清C反应蛋白动态变化

目的：了解肾综合征出血热（ＨＦＲＳ）患者血清Ｃ反应蛋白（ＣＲＰ）的动态变化,探讨其在ＨＦＲＳ发病中的意义。方法：用速率比浊法检测３９例ＨＦＲＳ患者和３９例正常人血清ＣＲＰ含量。结果：ＨＦＲＳ患者血清ＣＲＰ水平明显高于对照组（Ｐ〈０．０１）,且于发热早期已增高,低血压期、少尿期达高峰,多尿期、恢复期逐渐下降至正常水平。危重型患者发热期、低血压期、少尿期较轻型、中型患者血清ＣＲＰ水平明显增高（Ｐ〈０．０１）。ＨＦＲＳＡ患者ＣＲＰ水平与血小板计数呈明显负相关（Ｐ〈０．０１）,与尿蛋白、ＢＵＮ呈明显正相关（Ｐ〈０．０１）。结论：ＨＦＲＳ患者血清ＣＲＰ水平与病程进展和病情轻重密切相关,早期动态检测对估计病情和判断预后有重要意义。     

血清HBV DNA复制与慢性乙型肝炎肝脏损伤程度的研究

目的：探讨慢性乙型肝炎急性发作时,ＨＢＶ复制水平与肝脏组织损伤程度之间的关系。方法：Ｃ地４４例自发性发作的慢性乙型肝炎患者进行肝组织活检,并采用荧光定量多聚酶链反应测定血清ＨＢＶＤＮＡ含量。结果：血清ＨＢＶＤＮＡ含量与肝脏炎症程度（Ｇ１－Ｇ４）及纤维化程度（Ｓ１－Ｓ４）之间比较,无明显相关性（Ｐ〉０．０５）;与血清丙氨酸转氨酶（ＡＬＴ）、门冬氨酸转氨酶（ＡＳＴ）及总胆红素（Ｔ－ＢＩＬＩ）之间也无相     

新生儿缺氧缺血性脑病血清心肌酶活性的变化

目的：探讨新生儿缺氧缺血性脑病（ＨＩＥ）患儿血清心肌酶活性的变化及其临床意义。方法：对４２例ＨＩＥ患儿分设轻度组、中度组、重度组、分别于入院２４ｈ内及ｄ７检测其血清ＧＯＴ、ＣＫ、ＬＤＨ、α－ＨＢＤＨ的活性,并作对比分析。结果：ＨＩＥ患者血清ＧＯＴ、ＣＫ、ＬＤＨ、α－ＨＢＤＨ浓度均升高,且重度组高于中度组,中度组高于轻度组（Ｐ〈０．０５,Ｐ〈０．０１）,治疗后７ｄ且的心肌酶浓度均下降,轻至中度组已基     

冠心病患者血清总胆红素浓度变化及意义

目的：探讨血清总胆红素浓度变化与冠心病的关系。方法：检测经选择性冠脉造影确诊的１２８例冠心病患者及１０３例冠脉正常人空腹状态下血清总胆红素浓度,分析冠心病患者血清总胆红素浓度变化。结果：冠心病患者血清总胆红素浓度明显低于冠脉正常者（Ｐ〈０．０１）,且冠心病发病年龄愈低,胆红素水平也愈低（Ｐ〈０．０５）,但冠脉病变支数似与胆红素水平无关（Ｐ〉０．０５）。结论：低血清胆红素水平可能是冠心病发生的原因之     

肾细胞癌患者血清中血管内皮生长因子的表达

目的　据认为血管内皮生长因子是实体肿瘤血管生成和生长的重要成分。本实验通过研究VEGF在肾细胞癌的表达 ,探讨其在肾细胞癌中的作用。方法　肾细胞癌患者血清标本 2 4例 ,健康对照 2 0例 ,定量SABC ELISA法行血清中VEGF测定。结果　肾细胞癌患者血清VEGF中值 ( 4 76pg/ml)较对照组( 312pg/ml)明显增高 (P <0 0 1)。结论　血清VEGF值于肾细胞癌相关 ,可作为肾细胞癌的监控指标。     

Comparison of serum fluoride levels after administration of monofluorophosphate-calcium carbonate or sodium fluoride: differences in peak serum concentrations

Fluoride salts are widely used in Europe in the treatment of established osteoporosis with crush fractures for their ability to increase trabecular bone mass. However, in the United States fluorides are still regarded as an experimental drug. In a prospective, randomized study we compared the fluoride pharmacokinetics of enteric-coated sodium fluoride and disodium monofluorophosphate calcium carbonate (MFP-Ca) over the period of 76 h. Twenty subjects (12 females, 8 males), aged 35–80 years, free of gastrointestinal disorders, renal impairment, and liver disease and without prior fluoride intake entered the study. Ten subjects received NaF (11.3 mg fluoride) twice a day and the other ten MFP-Ca (13.2 mg fluoride) twice a day. During the study period of 76 h the patient's usual food intake was not changed. Serum fluoride levels were determined using an ion sensitive electrode. After intake of a single drug preparation of MFPCa or NaF, MFP-Ca showed a significantly shorter lag time of absorption and a significantly higher maximal serum fluoride concentration than NaF (P<0.01). A comparison of fluoride cumulative characteristics of both drugs showed virtually identical serum fluoride levels before intake of the morning dose on all 4 study days, whereas serum fluoride concentrations measured 4 h afterwards were significantly higher for MFP-Ca than for NaF. These data provide evidence of high peak serum fluoride levels for MFP-Ca, whereas only small peak-to-trough fluctuations are seen for NaF.Abbreviations MFP-Ca disodium monofluorophosphate-calcium carbonate - C _max maximum drug concentration - T _max lag time of maximum drug concentration - AUC area under the serum concentration versus time curve Correspondence to: L. Erlacher     

A rapid method for detecting barbiturates in serum using EI-SIM

A simple and rapid method for analysis of barbiturates in serum has been developed. In order to extract and clean barbiturates in serum, a separation column packed with Extrelut and Florisil was used, and the eluate was directly analyzed by means of electron impact selected ion monitoring (EI-SIM). Selected ions used were base peak ions of 10 barbituartes, and the internal standard used was allobarbital or secobarbital. The calibration curves were linear over the range 0.5–5 ng. Extraction of replicate serum samples containing 20 g/1.5 ml and 5 g/1.5 ml resulted in a recovery of 87.2–105.2% and 81.6–104.6%, respectively, with the exception of phenobarbital, which was 151.9% and 172.1%, respectively. Secobarbital was also analyzed in the serum of 13 patients who had been given secobarbital intravenously. In 3 out of 10 cases, Secobarbital levels greater than 1 g/ml were detected more than 72 h after administration. This method seems to have possibilities for clinical use.Paper presented at the 2nd International Symposium ADVANCES IN LEGAL MEDICINE, Berlin, Germany, August 30–September 1, 1993     

Recurrent breast cancer at 21 years after resection detected by serum tumor markers and manifested as dermatomyositis

A 52-year-old Japanese woman developed dermatomyositis. She had undergone a standard radical mastectomy for left breast cancer 21 years earlier. Though no physical sign of recurrent breast cancer appeared clinically, levels of tumor markers were abnormally elevated. Therefore, tamoxifen and CAF therapy were given. Further, the clinical course of dermatomyositis almost paralleled the level of serum tumor markers and the clinical course of her recurrent breast cancer. These markers were useful for detecting the recurrence, following the metastatic disease, and monitoring her response to therapy.