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91.
92.
Nakamura Hajime; De Rosa Stephen; Roederer Mario; Anderson Michael T.; Dubs J. Gregson; Yodoi Junji; Holmgren Arne; Herzenberg Leonard A.; Herzenberg Leonore A. 《International immunology》1996,8(4):603-611
Thioredoxin (Trx), a ubiquitous protein intimately involvedin redox and protein disulfide reductions, has been shown tobe released from cells and to have cytokine-like activities.In addition, Trx has been implicated in the redox regulationof immunological responses and shown to be deficient in tissuesfrom AIDS patients. In studies presented here, plasma Trx levelswere measured by ELISA in plasma samples from HIV-infected individuals(n = 136) and HIV-negative controls (n = 47). To account forthe release of Trx into plasma due to hemolysis, the Trx measurementswere corrected according to the level of hemoglobin in the plasmasample. Data presented show that, in contrast to tissue Trxlevels, corrected plasma Trx levels are significantly higherin HIV-infected individuals than in controls (P < 0.0001).Furthermore, {small tilde}25% of the HIV-infected individualsstudied have plasma Trx levels greater than the highest levelfound in controls (37 ng/ml). Detailed multiparameter FACS analysisof peripheral blood mononuclear cells (PBMC) from the infectedindividuals demonstrates that those with higher plasma Trx levels(37 ng/ml or greater) tend to have lower overall CD4 counts.In addition, increases in plasma Trx levels correlate with decreasesin monochlorobimane staining (indicative of lower intracellularglutathione levels in PBMC) and with changes in surface antigenexpression (CD62L, CD38 and CD20) that occur in the later stagesof HIV infection. These correlations suggest that elevationof plasma Trx levels may be an important component of advancedHIV disease, perhaps related to the oxidative stress that oftenoccurs at this stage. 相似文献
93.
C Altomare A Carotti S Cellamare G Leogrande D De Vito 《Il Farmaco; edizione pratica》1990,45(11):1229-1236
A simple and efficient method is described for the direct determination of Isoniazide (INH) and Pyrazinamide (PZAm) in human plasma, based on reversed-phase HPLC. A number of other antitubercular drugs such as p-Aminosalycylic acid (PAS), Streptomycin (STM) and Ethambutol (ETH) and the major metabolites of the two investigated drugs, namely N-Monoacetylisoniazide (AcINH) and Pyrazinoic acid (PZAc), were shown not to interfere with the assay method. A potential application of the method to routine clinical monitoring of antitubercular drugs is discussed. 相似文献
94.
95.
Obstructive and restrictive ventilatory impairment in polyvinylchloride fabrication workers 总被引:1,自引:0,他引:1
P Ernst L De Guire B Armstrong G Thériault 《American journal of industrial medicine》1988,14(3):273-279
Responses to a standardized respiratory symptom questionnaire, spirometry, and cross-shift decreases in lung function between 70 current employees of a polyvinylchloride (PVC) fabrication plant and a control group consisting of 48 men employed in a vegetable packing plant were compared. FEV1/FVC was significantly lower in the PVC workers. Cross-shift drops in Vmax75 of 15% or more were also more prevalent in the exposed group (p = .01). When examining the association between months of work within the exposed workforce and spirometric indices of airway obstruction, no relationship could be demonstrated. However, an inverse dose-response relationship was seen between level of FVC and duration of employment, suggesting a restrictive impairment. While the specific exposures have not been identified, it appears that employment in PVC fabrication may be associated with both obstructive and restrictive ventilatory effects. 相似文献
96.
肥胖患者胰升糖素水平变化及其对空腹血糖的影响 总被引:1,自引:0,他引:1
目的 探讨肥胖患者胰升糖素的变化特点及其对血糖的影响。方法 将 82例患者根据体重指数分为 3组 :A组 (BMI <2 4,n =2 3 )、B组 (2 4≤BMI <2 7,n =2 7)、C组 (BMI≥ 2 7,n =3 2 ) ,分别测定胰升糖素、胰岛素、空腹血糖 ,采用单因素方差分析法与Spearman等级相关性分析法进行分析。结果 3组胰升糖素分别为 (15 6.3± 5 8.6)、(186.7± 67.5 )、(2 2 2 .2± 88.4)ng·L-1,C组与A组比较有显著性差异 (P <0 .0 1) ;3组胰岛素分别为 (15 .4± 4.7)mIU·L-1、(2 0 .6± 9.6)mIU·L-1、(2 2 .3± 10 .6)mIU·L-1,B组、C组与A组比较差异有显著意义 (P <0 .0 5、P <0 .0 1) ;B、C两组胰升糖素与空腹血糖呈正相关。结论 肥胖患者胰岛素、胰升糖素一致性增高 ,胰升糖素的增高是空腹血糖增高的重要因素。 相似文献
97.
P. Peeters J. Sennesael H. De Raeve M. De Waele D. Verbeelen 《Transplant international》1997,10(6):471-474
Lymphoma in immunocompromised transplant patients is a feared cause of morbidity and mortality. Superimposed on the lymphoma
and the transplantation immunosuppression is a rare condition: hemophagocytic syndrome (HS). HS is characterized by fever,
hepatosplenomegaly and lymphadenopathy, skin rashes, jaundice, coagulopathy, and phagocytosis of blood elements with pancytopenia.
Here we describe a rare but fatal case of a kidney transplant patient who developed T-cell lymphoma and HS, without evidence
of EBV replication. A short review of the diagnosis, treatment, and prognosis of HS is given.
Received: 4 March 1997 Received after revision: 6 June 1997 Accepted: 30 June 1997 相似文献
98.
在动物实验的基础上,比较了抗AFP单克隆抗体(mAb)和抗AFP多克隆抗体(pAb)两种不同抗体双弹头标记物在肝癌患者体内的生物代谢情况。结果显示,两种抗体标记物的血浆清除半衰期均在24h左右,mAb标记物的清除较pAb标记物略慢。尿清除的半衰期,mAb标记物约为120h,而pAb标记物则约为18h,表明二者的体内生物代谢不同,疗效可能不一。 相似文献
99.
Luca Busetto Claudia Pisent Gianni Segato Francesco De Marchi Franco Favretti Mario Lise Giuliano Enzi 《Obesity surgery》1997,7(6):505-512
Objective: To evaluate the effects of a new timing strategy of band adjustment on the short-term outcome of obese women operated
with adjustable silicone gastric banding. Subjects: The outcome of 30 women without binge-eating disorder operated with laparoscopic
adjustable silicone gastric banding with a wider intraoperatory band calibration (LAP-BAND) was compared to that of 30 body
mass index-matched women without binge-eating disorder previously operated with adjustable silicone gastric banding (ASGB)
applied by laparotomy with the usual intraoperatory band calibration. The patients were evaluated 3, 6 and 12 months after
surgery. Measurements: (1) weight loss; (2) total daily energy intake; (3) percent as liquid, soft or solid food; (4) vomiting
frequency; (5) rate of postoperative percutaneous band adjustments; (6) rate of band-related complications. Results: Both
the weight loss and the daily energy intake did not differ between patients with LAP-BAND and patients with ASGB. After surgery,
the patients with LAP-BAND ate more solid food and less liquid food than the patients with ASGB. Vomiting frequency was higher
in patients with ASGB than in patients with LAP-BAND. The total number of percutaneous band adjustments was higher in women
with LAP-BAND than in women with ASGB. Band inflation because of weight stabilization was performed in six (20.0%) women with
ASGB and in 19 (63.3%) women with LAP-BAND. Neostoma stenosis occurred in one women with ASGB, but in none of the women with
LAP-BAND. One patient with LAP-BAND presented band slippage. Conclusions: The wider intraoperatory band calibration performed
in patients with LAP-BAND did not reduce the short-term efficacy of adjustable silicone gastric banding. This new timing strategy
of band adjustment required more postoperative percutaneous band inflations, but it improved the eating pattern of the patients
(low vomiting frequency and high intake of solid food). 相似文献
100.
M Rengo V Terrinoni G Galati A De Cesare A Martinazzoli E Fiori M Borghese A Florio 《Minerva chirurgica》1990,45(7):469-476
Underlining the importance of Profundus Femoral Artery and its capacity to make up for lower limb's haemodynamics during obliterative arteriopathy, the Authors conceive a funnel-shaped intravascular prosthesis, Goretex constructed (PTFE), to introduce, in case of obstruction, in the artery lumen with a suitable instrument. The research is performed through ten oldster dogs whose average weight is twenty-four kilograms. Isolated the deep Femoral Artery and carried out an arteriotomy of about two centimetres on the Common Femoral Artery, we bring the prothesis in Profundis Femoral Artery and we fix it to the wall of the Common Femoral Artery with 8/O microsurgical dots. After thirty days, the arteriographic test shows the patency of the endoprosthesis with normal peripheral flow in nine animals out of ten. By virtue of this preliminary experiment, the Authors point out the semplicity of this intervention, also feasible in local anaesthesia, the good tolerability of the prosthesis and its perfect integration with the surrounding arterious wall, without shifts or dissecting laminar flows between the external prosthesis wall and the vessel lumen of the animal. 相似文献