51 resultados para Edelstein


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Transportation Department, Research and Special Programs Administration, Washington, D.C.

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Mode of access: Internet.

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Thesis (doctoral)--Friedrich-Wilhelms-Universitat zu Berlin.

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Thesis (doctoral)--Universität Bern, 1906.

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The purpose of this study was to delineate the key emotional concerns of women newly diagnosed with recurrent or metastatic breast cancer. Sixty-six women diagnosed with metastatic breast cancer within the previous 6 months, receiving treatment at the Medical Oncology Departments of two metropolitan teaching hospitals, completed measures of HADS, IES, CARES-SF and Memorial Symptom Assessment Scale, and participated in a semistructured interview. There were high levels of psychological morbidity, 56.7% of women younger than 55 years qualifying as 'cases' on the HADS, compared with 34.5% of women aged over 55 years. The total HADS score was significantly correlated with the Global and Physical Subscales of the MSAS and CARES. Women younger than 55 years had significantly higher levels of intrusive and avoidant symptoms than women over 55 years. Women also reported high numbers of physical symptoms. Key themes which emerged during the interviews were: difficulties in communicating with doctors, perceived delay in diagnosis, the emotional impact, concerns about the family, feelings about why the cancer developed, other life stress and trauma, and use of non-prescribed treatments. Copyright (c) 2004 John Wiley & Sons, Ltd.

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Apoptosis-inducing factor (AIF) is a mitochondrial flavoprotein with dual roles in redox signaling and programmed cell death. Deficiency in AIF is known to result in defective oxidative phosphorylation (OXPHOS), via loss of complex I activity and assembly in other tissues. Because the kidney relies on OXPHOS for metabolic homeostasis, we hypothesized that a decrease in AIF would result in chronic kidney disease (CKD). Here, we report that partial knockdown of Aif in mice recapitulates many features of CKD, in association with a compensatory increase in the mitochondrial ATP pool via a shift toward mitochondrial fusion, excess mitochondrial reactive oxygen species production, and Nox4 upregulation. However, despite a 50% lower AIF protein content in the kidney cortex, there was no loss of complex I activity or assembly. When diabetes was superimposed onto Aif knockdown, there were extensive changes in mitochondrial function and networking, which augmented the renal lesion. Studies in patients with diabetic nephropathy showed a decrease in AIF within the renal tubular compartment and lower AIFM1 renal cortical gene expression, which correlated with declining glomerular filtration rate. Lentiviral overexpression of Aif1m rescued glucose-induced disruption of mitochondrial respiration in human primary proximal tubule cells. These studies demonstrate that AIF deficiency is a risk factor for the development of diabetic kidney disease.