A 4 year old male with primary hypomagnesaemia was studied using balance and steady-state perfusion techniques. Magnesium balance was negative and could be accounted for by increased faecal losses, renal conservation being normal; calcium balance was normal. After oral magnesium therapy magnesium balance became positive. The perfusion studies demonstrated net loss of magnesium into the intestin...

Context: Previous studies correlating electrolytes levels with heart rate variability (HRV) were conducted exclusively in diseased patients and fail to demonstrate significant correlations, except for a few. Whether absence of significant correlations is physiological or hidden by the associated pathologies is uncertain. Aim: To evaluate the effects of electrolytes concentrations on heart rate ...

of any one of the thirteen ingredients or the addition of calcium and/or magnesium ions prevented the alteration phenomenon. The optimum concentrations of the essential chemicals were determined. A direct relationship was found to exist between the concentration of trypsin which induced cell alteration and the concentrations of calcium and magnesium ions which inhibited the conversion process. ...

background: pre-eclampsia along with its complications seems to be one of the major causes of maternal morbidity and mortality. despite numerous studies, the etiology of pre-eclampsia has not yet been fully elucidated. according to recent studies changes in the level of blood trace elements can be an adverse event in human and animal pregnancy. the present study determines whether maternal seru...

A23187 is a carboxylic acid antibiotic which simultaneously uncouples oxidative phosphorylation and inhibits ATPase of rat liver mitochondria incubated in a magnesium-free medium. The antibiotic acts as a freely mobile carrier to transport calcium and magnesium, but not potassium, from an aqueous medium buffered at pH 7.4 into a bulk organic phase. A23187 causes a progressive release of endogen...

The objective of this study was to estimate genetic parameters for concentrations of minerals in LM and to evaluate their associations with beef palatability traits. Samples of LM from 2,285 Angus cattle were obtained and fabricated into steaks for analysis of mineral concentrations and for trained sensory panel assessments. Nine minerals, including calcium, copper, iron, magnesium, manganese, ...

Calcium influx through voltage-dependent Ca(2+) channels is critical for many neuronal processes required for learning and memory. Persistent increases in cytosolic intracellular Ca(2+) concentrations in aging neurons are associated with learning impairments, while small transient subcellular changes in intracellular calcium concentrations play critical roles in neural plasticity in young neuro...

The activation of defense genes in response to wounding involves the integration of multiple inputs from various signaling molecules produced in different tissues and cellular compartments. In this report, we demonstrate that calcium and magnesium ions enhance systemin activity and that calcium fluxes are necessary for wound gene activation. During wounding, intracellular contents such as calci...