A 30-year review of primary ovarian sarcomas seen at The University of Iowa Hospitals and Clinics and a review of the literature are presented. Stage at presentation and resectability were the most significant prognostic indicators. Most recurrences appeared outside the pelvis, indicating a need for systemic chemotherapy. With aggressive treatment, patients with early stage disease can have long term survival. A plea is made for multicenter protocols to develop effective programs of treatment.
book, Academic Library Centrality. This paper reports the results of interviews conducted in 2004 with the presidents and provosts of six universities and compares them with Grimes' findings. The analysis shows that major changes have occurred in the attitudes of university leaders toward their libraries during the last decade. These new findings provide direction for library leaders as they seek out new models of library service and reshape old models to fit the current environment of American higher education. The findings also point to the emergence of new competencies, skills, and knowledge as essential components of the job of the library director. The results of this study call into question the applicability of the centrality concept to libraries in universities and indicate the need for research that offers a relevant model for use in those settings.
Adrenal glomerulosa was examined for the presence of an adrenergic influence on aldosterone production. Cultured rat adrenal capsular explants were transferred to a perifusion system where the effect of exposure to catecholamines on aldosterone production was assessed. At 10(-6) M, isoproterenol greater than epinephrine greater than norepinephrine significantly stimulated aldosterone production, whereas at 10(-8) M only isoproterenol showed significant stimulation. Propranolol, a beta-adrenoreceptor antagonist, inhibited stimulation by epinephrine, and the phosphodiesterase inhibitor, 1-methyl-3-isobutylxanthine, enhanced stimulation by a submaximal dose of epinephrine. Epinephrine and norepinephrine were found by radioenzymatic assay to be present in fresh as well as cultured capsular tissue, although levels were considerably lower in tissue that had been in culture (about one tenth that of fresh tissue). The epinephrine-norepinephrine ratio was similar in capsule and medulla, suggesting a medullary source of capsular catecholamines. Whether catecholamines in the capsule arose from the in vitro manipulation of adrenal tissue or existed in vivo is unclear. In summary, beta-agonists stimulate aldosterone production in cultured rat capsular explants.
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