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501.
For this secondary data analysis of a large clinical drug study, researchers investigated the independent prognostic utility of self-report quality-of-life measures versus clinical measures for assessing patient risk for heart-failure-related hospitalization. The experience of heart failure varies over the life course; hence, four age groups were investigated. Quality-of-life measures, specifically health-related quality-of-life and psychosocial quality-of-life measures, were found to be independent and significant predictors of heart-failure-related hospitalizations, as compared to traditional clinical indicators. In addition, the psychosocial quality-of-life measure varied by age group in its importance as a predictor of hospitalization, suggesting differential relevance over the life course. Specifically, psychosocial quality of life was most strongly predictive of hospitalization for those ages 21-44, was less predictive for those ages 45-54, and was nonsignificant for those 55-64 years of age and those 65 and over. Including self-report quality-of-life measures provides a more complete picture of the factors associated with risk of hospitalization at different points in the life course for individuals with heart failure. These findings suggest that researchers and practitioners could use self-report quality-of-life measures as additional prognostic indicators of a patient's condition and risk for heart-failure-related hospitalization, especially for younger patients.  相似文献   
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Pruritus is a common and significant symptom among patients with psoriasis. Pruritus is often present beyond the borders of psoriatic plaques, and frequently affects the scalp and genital regions. Psoriatic itch may be severe and can profoundly affect quality of life and sleep, even in the context of mild-to-moderate disease. These features often make the treatment of psoriatic pruritus challenging. However, there are a variety of effective topical and systemic treatment modalities available to address this symptom. While there remains a need for treatments that specifically target psoriatic itch, newly licensed therapies including secukinumab, ixekizumab and apremilast have been shown to rapidly and effectively mediate itch reduction.  相似文献   
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Purpose: To describe the roles of nurse practitioners (NPs) in a novel model of healthcare delivery for patients with chronic disease: shared medical appointments (SMAs)/group visits based on the chronic care model (CCM). To map the specific skills of NPs to the six elements of the CCM: self-management, decision support, delivery system design, clinical information systems, community resources, and organizational support.
Data sources: Case studies of three disease-specific multidisciplinary SMAs (diabetes, heart failure, and hypertension) in which NPs played a leadership role.
Conclusions: NPs have multiple roles in development, implementation, and sustainability of SMAs as quality improvement interventions. Although the specific skills of NPs map out all six elements of the CCM, in our context, they had the greatest role in self-management, decision support, and delivery system design.
Implications for practice: With the increasing numbers of patients with chronic illnesses, healthcare systems are increasingly challenged to provide necessary care and empower patients to participate in that care. NPs can play a key role in helping to meet these challenges.  相似文献   
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Background:The relationship between darbepoetin alfa and fatigue in chemotherapy-induced anemia (CIA) patients is complex because of patients receiving transfusions and the mediating effect of hemoglobin. Latent growth models (LGMs) were used to examine simultaneously relationships among drug exposure, fatigue outcomes, covariates, and mediating factors.Methods:Data from four CIA studies (AMG 20010145: small cell lung cancer, n = 547; AMG 980297: lung cancer, n = 288; AMG 20000161: lymphoproliferative malignancies, n = 339; AMG 20030232: non-myeloid malignancies, n = 320) were analyzed separately. Patients reported fatigue using the FACT-Fatigue. The effect of darbepoetin alfa on FACT-F changes mediated through hemoglobin changes was examined with LGMs controlling for transfusions, age, sex, baseline ECOG performance status, and health status (EQ-5D VAS). Model fit was assessed using multiple indices including the comparative fit index (CFI).Results:Darbepoetin alfa increased hemoglobin levels which were associated with decreases in fatigue. Increases in hemoglobin were statistically significantly (p < 0.05) related to decreases in fatigue in the studies (AMG 20030145: β? = 0.28; AMG 980297: β? = 0.46; AMG 20000161: β? = 0.59; and AMG 20030232: β? = 0.39). Darbepoetin alfa statistically significantly increased hemoglobin (AMG 20010145:β? = 0.50, AMG 980297:β? = 0.53, AMG 20000161:β? = 0.47, and AMG 20030232:β? = 0.30) while controlling for covariates. Model fit was acceptable (CFI  0.89) in all studies.Conclusions:Results indicate LGMs may be a valuable statistical method for modeling complex relationships among clinical and patient reported outcomes. A statistically significant effect of darbepoetin alfa on fatigue change through hemoglobin change occurred across four studies, after modeling the effects of transfusions, age, sex, EQ-5D VAS and ECOG.  相似文献   
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Practitioners rely on a variety of measures of a patient's physical condition, including physiologic and clinician assessments. Occasionally, patient self-report data are collected. What insight into the physical health and functioning of patients does each of these types of information yield? This study suggests that each type of information provides a somewhat different insight into a patient's physical condition and that a combination of physiologic, clinician, and patient self-assessments can provide a more thorough assessment of a patient's condition. Using data from a clinical study of patients with heart failure, the Studies of Left Ventricular Dysfunction (SOLVD), measures of these three types of physical health assessments are compared as predictors of hospitalization. Results indicate that the self-report measures performed as well as or better than the physiologic or clinician assessments as predictors of hospitalization. The self-report measures have the added advantage of being inexpensive, noninvasive, and easily obtained over time, allowing for assessments of change. These findings suggest that, while related, each type of measure captures a different aspect of patient physical health and functioning.  相似文献   
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Survival factors play critical roles in regulating cell growth in normal and cancer cells. We designed a genetic screen to identify survival factors which protect tumor cells from apoptosis. A retroviral expression library of random cDNA fragments was constructed from cancer cells and used to transduce the colon carcinoma cell line HCT116. Recipient cells were functionally selected for induction of caspase 3-mediated apoptosis. Analyses of over 10,000 putative genetic suppression elements (GSEs) sequences revealed cognate gene candidates that are implicated in apoptosis. We further analysed 26 genes encoding cell surface and secreted proteins that can potentially serve as targets for therapeutic antibodies. Tetracycline-inducible GSEs from several gene candidates induced apoptosis in stable HCT 116 cell lines. Similar phenotypes were caused by RNAi derived from the same genes. Our data suggest requirement for the cell surface targets IGF2R, L1CAM and SLC31A1 in tumor cell growth in vitro, and suggests that IGF2R is required for xenograft tumor growth in a mouse model.  相似文献   
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