Measurement of 131 I and 125 I by liquid scintillation counting.
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Biomedical subjects
Publications and source records attributed to E D Bransome.
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In cultures of mouse adrenocortical tumor cells (Sato's minimal deviation Y-1 clonal strain), the acceleration of steroid biosynthesis after exposure to adrenocorticotropic hormone or cyclic adenosine 3',5'-monophosphate is maximum within 15 to 60 minutes and precedes any significant increase in labeling of protein with [4,5-(3)H]leucine. However, when cytosol proteins are separated by acrylamidegel electrophoresis, rapid changes in the amount and labeling of several protein fractions are evident in less than 30 minutes and are no longer evident within 60 minutes. This finding supports the proposal that the effects of tropic hormones and their intracellular mediators involve rapid selective effects on protein synthesis.
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The estrogenic activity of 11 beta-acetoxy estradiol, 11 beta-hydroxy estradiol, 11 alpha-hydroxy estradiol and 9 beta-estradiol was compared to estradiol using the restoration of uterine weight and prevention of LH rise in immature ovariectomized rats as endpoints of the assay. There was a good correlation between results using the two methods and estrogenic activity was found to be in the following order: 11 beta-acetoxy estradiol greater than estradiol greater than 9 beta-estradiol greater than 11 beta-hydroxy estradiol greater than 11 alpha-hydroxy estradiol. The biological activities of these compounds could be explained on the basis of stereochemical complementarity to the structure of DNA.
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Professional review organizations (PROs) have been reviewing hospital admissions on diagnosis-related groups (DRGs) 294 and 295 (uncomplicated diabetes mellitus) at the direction of the Health Care Financing Administration (HCFA) to control inappropriate hospital admissions. Because of the possibility of an adverse effect from this policy on the quality of medical care for people with diabetes, letters were sent and/or telephone calls were made to each PRO to request information on denials of admissions or of reimbursement for the hospitalization of patients with diabetes. The answers revealed variations in PRO review procedures, little attention to quality of care, and an apparently inadequate data retrieval system. These inadequacies of the Medicare Prospective Payment System (PPS), which currently obscure its impact on the quality of the hospital care of diabetic patients, can be remedied.