Duck eggshells are one of bio-wastes from poultry industry and household that have been disposed. contain high calcium which can be applied as an alternative source daily for the body. Nanostructured duck eggshell used a food additive in beef sausage processing. This study was conducted to determine chemical quality fortified by nano-calcium. The materials include beef, soy protein isolate, pal...

We examined pathways which might result in the elevated resting free calcium [( Ca2+]i) levels observed in dystrophic mouse (mdx) skeletal muscle fibers and myotubes and human Duchenne muscular dystrophy myotubes. We found that mdx fibers, loaded with the calcium indicator fura-2, were less able to regulate [Ca2+]i levels in the region near the sarcolemma. Increased calcium influx or decreased ...

INTRODUCTION . . 101 PHYSIOLOGICAL BASIS FOR THE RELATIONSHIP BETWEEN URINARY SODIUM A N D CALCIUM . . 102 EFFECT O F SALT SUPPLEMENTATION O N CALCIUM METABOLISM I N T H E R A T . . . 102 RELATIONSHIP BETWEEN U R I N A R Y SODIUM A N D CALCIUM EXCRETION IN M A N . . . 104 STUDIES ON FREE-LIVING I N D I V I D U A L S . . 104 STUDIES WITH CONTROLLED SODIUM I N T A K E . . . 106 MAGNITUDE OF SODIU...

This study characterizes the sequential alterations of, and relations between, multiple electrolytes in cytoplasm, mitochondria, and whole cells during hypoxia and on reoxygenation in isolated neonatal rat ventricular myocytes. Subcellular electrolyte content and distribution were measured by electron probe x-ray microanalysis, membrane phospholipid degradation by tritiated arachidonic acid rel...

The convenience and accuracy of flame photometric methods for the determination of sodium and potassium in body tissues and fluids suggest the desirability of determining other cations such as calcium and magnesium in the same sample. While reliable procedures for the determination of sodium and potassium have been developed (1, 2), there are apparently no satisfactory flame spectrophotometric ...

Cytosolic free calcium concentration was determined in isolated ventricular myocytes from adult rats with the calcium-sensitive indicator, quin 2. The fluorescence signal from resting cells indicated that cytosolic free calcium concentration was 181 +/- 18 nM (mean +/- SEM, n = 18). Inhibition of the sodium-potassium pump with strophanthidin (0.1 mM) resulted in an increase of cytosolic free ca...

The aim of the study is to demonstrate the presence of intracellular calcium store in frog ventricle based on contractures induced by 4-aminopyridine in calcium-free media. Frog-ventricular strips were subjected to field stimulation at 0.2 Hz and the force of contraction was recorded after stabilization. The preparation was then kept quiescent for some time in solutions with different sodium co...