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991.
W Ashraf N van Someren EM Quigley SA Saboor LJ Farrow 《Canadian Metallurgical Quarterly》1994,19(2):122-124
A now 14-year-old boy underwent orthotopic heart transplantation at the age of 13 for anthracycline cardiomyopathy which was a sequela of polychemotherapy for embryonal teratocarcinoma at the age of 1 year. Despite perioperative cerebellar infarction with signs of herniation which required emergency right cerebellar hemispherectomy the long-term course after 18 months turned out to be favorable with complete medical and psychosocial rehabilitation. 相似文献
992.
WR Beardslee EM Versage EJ Wright P Salt PC Rothberg K Drezner TR Gladstone 《Canadian Metallurgical Quarterly》1997,9(1):109-130
Thirty-seven families who had a child between the ages of 8 and 15 (mean age = 12.0 years) and had at least one parent, who had experienced a recent episode of affective disorder were assigned randomly to one of two psychoeducational interventions. The interventions (clinician-facilitated or lecture-group discussion) were designed to prevent childhood depression and related problems through decreasing the impact of related risk factors and encouraging resiliency-promoting behaviors and attitudes. They were similar in content but differed in the level of the children's involvement and the degree to which the families' individual life experiences were linked to the educational material. Assessments included standard diagnostic and social functioning instruments and interviews designed specifically for this project to assess behavior and attitude change. Each parent and child was individually assessed by separate assessors who were blind to information about the other family members. Parent participants in both groups reported being satisfied with the intervention. Clinician group participants reported a significantly larger number of overall changes, as well as higher levels of change regarding communications about the illness with their children and increased understanding by the children of their illness. Significantly more children in the clinician group also reported they gained a better understanding of parental affective illness as a result of their participation in the project. 相似文献
993.
CJ Smith RG Nelson SA Hardy EM Manahan PH Bennett WC Knowler 《Canadian Metallurgical Quarterly》1996,96(8):778-784
OBJECTIVE: A dietary survey was conducted in the Gila River Indian Community in Arizona using two methods of dietary assessment--24-hour recall and quantitative food frequency (QFF) assessment--to determine the usual intake of the population. DESIGN: Interviews were conducted by Pima women who were trained and monitored by a research dietitian. Energy and nutrient intake were calculated using a computerized dietary database that included specific Pima foods. SUBJECTS: An age- and sex-stratified sample of 575 Pima Indians (273 men, 302 women) aged 18 to 74 years participated in the study. STATISTICAL ANALYSES: Spearman correlations were used to compare the results of the two survey methods for energy and each nutrient. Intraclass correlations were used to measure reproducibility. RESULTS: According to the 24-hour recall, mean reported energy intakes within decades of age were 95% to 112% of those in the US population for Pima women, and 76% to 94% of those in the US population for Pima men. Total energy intake assessed using QFF was 30% higher in men and 33% higher in women than the intake assessed using the 24-hour recall method. CONCLUSIONS: A large dietary survey conducted using lay interviewers in a Native-American community was as reproducible as studies conducted in the general US population. The Pima diet was distributed among the major nutrients in a proportion similar to the US diet. 相似文献
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997.
Dialectic between conceptual and causal inquiry in psychosocial work-environment research 总被引:1,自引:0,他引:1
In this article, the authors discuss the ongoing tension between etiologically oriented research--particularly that focused on the demand-control model--and the need to conceptually expand the work stress field to include gender and class-specific exposure contexts. Epidemiological research on the effects of low levels of work control is critically reviewed, and new methods of long-term psychosocial work-exposure assessment are presented. The process of conceptually expanding the demand-control model is discussed with respect to including other important variables, such as work-related social support, and specifying the nature of the gendered work process that involves developing new concepts and measures of the invisible and emotional labor often performed by women. 相似文献
998.
In these experiments we examined whether the elevations in intracellular Ca2+ concentration ([Ca2+]i) induced by methylmercury (MeHg)(described in our previous study) might contribute to cerebellar granule cell mortality following exposure to MeHg in vitro. Cells were exposed to 0.5 microM MeHg for 45 min or 1 microM MeHg for 38 min, conditions previously shown to induce elevations in [Ca2+]i in these cells. Control cells were exposed to buffer alone for 60 min. Viability was assessed using the Live/Dead viability/cytotoxicity kit. At 30 min post-MeHg exposure, there was no immediate increase in cell mortality; however, by 3.5 h after the onset of MeHg exposure, cell viability decreased to 74 and 54% of control values for 0.5 and 1.0 microM MeHg, respectively. At 24.5 h after MeHg exposure, cell viability declined to approximately 27%. Losses in cell viability at 3.5 h were prevented by pretreating the granule cells for 65 min with the Ca2+ chelator 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid tetrakis(acetoxymethyl)ester (BAPTA; 10 microM), then exposing the cells to MeHg in the continued presence of BAPTA; however, at 24.5 h, BAPTA no longer prevented MeHg-induced cell death. Exposure to the Ca2+ channel blockers omega-conotoxin MVIIC (1 microM) or nifedipine (1 microM), previously shown to delay elevations in [Ca2+]i with MeHg exposure in vitro, protected granule cells from MeHg-induced mortality at 3.5 h postexposure. These data suggest that at early time points, MeHg-induced increases in [Ca2+]i may contribute to granule cell mortality; however, the role of Ca2+ at later time points is unclear. 相似文献
999.
In a retrospective analysis the results of extracorporeal shock wave lithotripsy (ESWL) treatment were evaluated in patients with renal stones according to calyceal localization of treated stones. The 198 patients who underwent ESWL with the Dornier MPL 9000 were analyzed for success rate, complication rate, residual fragments, regrowth and recurrence rates. Totally 210 calyceal calculi located in different portions of the kidney have been comparatively evaluated. No major complications were noted during or after ESWL. Some minor complications such as flank pain, renal colic, haematuria were observed. Flank pain was observed during ESWL treatment especially in patients with upper calyceal stones. Although stone-free and residual fragment rates were similar in pelvic, upper and middle calyces, patients with lower calyceal and pelvicalyceal stones had high residual fragment rate and lower stone-free rate. Patients with stones in the lower calyces or pelvicalyces had high recurrence and regrowth rates (p < 0.05). ESWL has been considered as the optimal treatment modality for most upper urinary tract calculi. It is especially effective in patients with pelvic, upper and middle calyceal stones. Patients with lower calyceal stones often failed to eliminate the fragments, hence had high recurrence and regrowth rates. 相似文献
1000.
CM dos Santos ED Moreira EM Krieger LC Michelini 《Canadian Metallurgical Quarterly》1998,31(4):973-977
BACKGROUND: This study was undertaken to determine whether suppression of complement activation with soluble human complement receptor type I reduces myocardial damage during the revascularization of ischemic myocardium. METHODS: In 20 pigs, the second and third diagonal coronary arteries were occluded for 90 minutes, followed by 45 minutes of cardioplegic arrest and 180 minutes of reperfusion. In 10 pigs, soluble human complement receptor type I (10 mg/kg) was infused over 30 minutes before the period of coronary occlusion; 10 other pigs received no soluble human complement receptor type I. Complement activation was measured by total hemolytic complement activity (expressed as a percentage of preischemic values). Ischemic damage was assessed by changes in myocardial tissue pH, wall motion scores (range, 4=normal to -1=dyskinesia), and infarct size (area of necrosis versus area at risk). RESULTS: After 180 minutes of reperfusion, hearts treated with soluble human complement receptor type I had significantly less complement activation than nontreated hearts (1.1%+/-0.09% versus 7.8%+/-0.04%, respectively; p < 0.002), less myocardial acidosis (-0.41+/-0.03 versus -0.72+/-0.03, respectively; p < 0.0001), higher wall motion scores (3.1+/-0.09 versus 1.67+/-0.16, respectively; p < 0.0001), and smaller infarct size (24.6%+/-2.0% versus 41%+/-1.3%, respectively; p < 0.0001). CONCLUSIONS: Complement inhibition with soluble human complement receptor type I significantly limits ischemic damage during the revascularization of acutely ischemic myocardium. 相似文献