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Substantial regeneration of both the endocrine and exocrine pancreas occurs after a 90% partial pancreatectomy in the young adult rat. We have reported previously that replication of preexisting islet and exocrine cells is enhanced 3- to 4-fold. Here, we report a second pathway of regeneration, that of proliferation and differentiation of precursor cells in(More)
Glucagon-like peptide-(GLP) I-(7-37) is an endogenous hormone that has recently been demonstrated to be a potent insulin secretagogue. In these studies, GLP was administered during oral and intravenous (IV) glucose tolerance tests (OGTT and IVGTT, respectively) to determine whether this peptide could enhance postprandial insulin levels and thus reduce(More)
The ability of low phosphorus diets to stimulate the activity of the 25-hydroxyvitamin D3-1alpha-hydroxylase was tested in the chick. Feeding low phosphorus diets for 2 weeks resulted in a marked increase in enzyme activity relative to chicks fed a normal phosphorus diet. Stimulation of the 25-hydroxyvitamin D3-1alpha-hydroxylase activity by low phosphorus(More)
Studies using regression techniques report their results using a variety of statistics. Evaluation of the consistency of findings, such as in a metaanalysis, requires calculating the statistical estimates of the effect reported in each study in a comparable manner. In this paper, we consider multiple linear regression, multiple Poisson regression, and(More)
Administration of large quantities of ethane-1-hydroxy-1,1-diphosphonate to growing chicks resulted in a decrease in percent bone ash and an increase in percent osteoid. The degree of inhibition of bone mineral accumulation was a function of both duration and quantity of ethane-1-hydroxy-1,1-diphosphonic acid administration. The inhibition of bone mineral(More)
The point availability of a repairable system is the probability that the system is operating at a specified time. As time increases, the point availability converges to a positive constant called the limiting availability. Baxter and Li (1994a) developed a technique for constructing nonparametric confidence intervals for the point availability. However,(More)