the risk of nephrocalcinosis (nc) in prctcrtn neonates is considerable, but conflicting numbers arc given for the actual incidence (i o•65(~..~)). furosemide induced hypcrcalciuria is said to be the main risk factor. we assessed prospectively the incidence, causes and outcome of nc in very low birth weight (less than 1500 g) prctcrm neonates by serial renal ultrasound scans and urine analysis. ...

We show that SU(Nc) gauge theories in 2+1 dimensions are close toNc = ∞ forNc ≥ 2. The dimensionful coupling, g, is proportional to 1/Nc, at largeNc, confirming the usual diagram-based expectation. Preliminary calculations in 3+1 dimensions indicate that the same is true there. Oxford Preprint Number: OUTP–96–49P hep-lat/9701004 ∗presented at Lattice 96

Activation of T cells requires at least two signals transduced by the Ag-specific TCR and a costimulatory ligand such as CD28. CTLA-4, expressed on activated T cells, binds to B7 present on APCs and functions as a negative regulator of T cell activation. Our laboratory previously reported the association of Graves' disease (GD) with a specific CTLA-4 gene polymorphism. In theory, reduced expres...

Introduction Conclusions References

A 14-d broiler experiment was conducted to assess the effects of 2 dietary variables on efficacy of a bacterial 6-phytase from Citobacter braakii on nutrient and phytate P (PP) utilization. Diets were formulated with or without nutrient matrix values (matrix) for phytase as negative control (NC) or positive control (PC), respectively, and with 2 Ca:total P (tP) levels (2:1 or 2.5:1). The diets ...

Two trials (a 42-d performance and a 21-d cohort digestibility) were conducted to evaluate the performance and nutrient digestibility of broilers fed corn diets supplemented with exogenous xylanase, amylase, and protease as single or combined activities. A nutritionally adequate, positive control (PC) diet was formulated. The negative control (NC) diet was formulated to be lower in metabolizabl...

At the level of prevention of bone mineral loss produced by ovariectomy, the aim of the present study was to determine the effect produced by supplementation of Ca in the diet and a moderate exercise programme (treadmill), simultaneously or separately, in ovariectomized rats, an experimental model of postmenopausal bone loss. Female Wistar rats (n 110, 15 weeks old) were divided into five group...