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11.
Aladdin H. Shadyab PhD JoAnn E. Manson MD DrPH Juhua Luo PhD Bernhard Haring MD MPH Nazmus Saquib PhD Linda G. Snetselaar RD PhD LD Jiu-Chiuan Chen MD ScD Erik J. Groessl PhD Sylvia Wassertheil-Smoller PhD Yangbo Sun MD PhD Lauren Hale PhD Meryl S. LeBoff MD Andrea Z. LaCroix PhD 《Journal of the American Geriatrics Society》2020,68(9):1970-1978
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Nicole B. Jacobson RD LD CNSD Neha Parekh MS RD LD CNSD Matt Kalaycio MD 《Current hematologic malignancy reports》2006,1(3):188-194
Patients with acute leukemia who undergo hematopoietic stem cell transplantation (HSCT) are susceptible to malnutrition caused
by several factors including intensive cytotoxic therapy. This paper discusses the significance of malnutrition in these patients
and provides an overview of nutrition therapy by the oral, enteral, and parenteral routes. The goal is to investigate whether
the use of parenteral nutrition (PN) produces improved clinical outcomes in patients with acute leukemia and to identify criteria
for the selection of patients most likely to benefit from this therapy. Although PN may be appropriate for patients suffering
from complications such as graft-versus-host disease (GVHD) and mucositis, the data available at this time do not support
PN as first-line therapy for all recipients of HSCT. 相似文献
14.
Recent evidence suggests that positive psychologic factors may be protective against coronary artery disease (CAD). We consider this possibility through a paradigm that explores three interrelated factors that may promote healthy psychologic functioning: vitality, emotional flexibility, and coping flexibility. Vitality is a positive and restorative emotional state that is associated with a sense of enthusiasm and energy. Flexibility is related both to the ability to regulate emotions effectively and cope effectively with challenging daily experiences. A variety of factors may diminish vitality, including chronic stress and negative emotions. Pathophysiologically, chronic stress and negative emotional states can both invoke a "chronic stress response" characterized by increased stimulation of the sympathetic nervous system and hypothalamic-pituitary-adrenal axis, with resultant peripheral effects, including augmented heart rate and blood pressure responsiveness and delayed recovery to stressful stimuli. Research indicates a wide array of stressful conditions--associated with either elements of relative inflexibility in psychologic functioning and/or relatively unabated stressful stimulation--that are associated with this type of exhausting hyperarousal. Conversely, new data suggest that positive psychologic factors, including positive emotions, optimism, and social support, may diminish physiological hyperresponsiveness and/or reduce adverse clinical event rates. Still other positive factors such as gratitude and altruistic behavior have been linked to a heightened sense of well-being but have not yet been tested for beneficial physiological effects. Pending further study, these observations could serve as the basis for expanding the potential behavioral interventions that may be used to assist patients with psychosocial risk factors for CAD. 相似文献
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Celia F Hybels Dan G Blazer Carl F Pieper Bruce M Burchett Judith C Hays Gerda G Fillenbaum Laura D Kubzansky Lisa F Berkman 《The American journal of geriatric psychiatry》2006,14(6):498-506
OBJECTIVE: Neighborhood sociodemographic characteristics may be important to the mental health of older adults who have decreased mobility and fewer resources. Our objective was to examine the association between neighborhood context and level of depressive symptomatology in older adults in a diverse geographic region of central North Carolina. METHODS: The sample included 2,998 adults 65 or older residing in 91 census tracts. Depressive symptoms were measured using the Center for Epidemiologic Studies-Depression scale (CES-D). Neighborhoods were characterized by five census-based characteristics: socioeconomic disadvantage, socioeconomic advantage, racial/ethnic heterogeneity, residential stability, and age structure. RESULTS: In ecologic level analyses, level of census tract socioeconomic disadvantage was associated with increased depressive symptoms. To determine whether neighborhood context was associated with depressive symptoms independently of individual characteristics, the authors used multilevel modeling. The authors examined the ability of each of five neighborhood (level 2) characteristics to predict a level 1 outcome (CES-D symptoms) controlling for the effects of individual (level 1) characteristics. Younger age, being widowed, lower income, and having some functional limitations were associated with increased depression symptoms conditional on census tract random effects. However, none of the neighborhood characteristics was significantly associated with depression symptoms, conditional on census tract random effects, either unadjusted or adjusted for individual characteristics. CONCLUSION: Any observed association between neighborhood sociodemographic characteristics and individual depressive symptoms in our sample may reflect the characteristics of the individuals who reside in the neighborhood rather than the neighborhood characteristics themselves. The use of multilevel modeling is important to separate these effects. 相似文献
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Direct sagittal computed tomographic scanning (DSCT) of the shoulder was performed in 42 symptomatic patients, six healthy volunteers, and two cadaver shoulders. Axial CT scanning and double-contrast arthrography with plain radiographs were performed in 41 patients for comparison. DSCT enabled correct identification of 27 of 29 lesions in 24 patients. Seventeen patients had normal shoulders. Axial CT scanning and DSCT together enabled correct identification of all lesions and were markedly superior to plain-film arthrography. DSCT enabled diagnosis of all cases of complete rotator cuff tear plus three cases of incomplete tear and three of rotator cuff atrophy not identified by the other techniques. Axial CT scanning was better than DSCT for diagnosis of Bankart lesions. 相似文献
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The effect of a central fusion lock on forced vergence fixation disparity curve parameters, that is, magnitudes of fixation disparity and associated phoria, curve type and the central slope of the curve, was studied in 84 subjects because of ambiguity in the previous studies. It was found that the magnitudes of exo fixation disparity and exo associated phoria decreased significantly when they were measured with the central fusion lock. The central lock had no noticeable effect on the type of the curve, although, the central slope of the curve was flatter in the presence of the central lock. 相似文献