Dear All,
I am surpised that nobody has mentioned (thyro)calcitonin in this context.
For calcium it is a well-known lowering agent and I have a slight memory
that it also is a lowering factor for magnesium, i e it hampers the outflow
of magnesium from the intracellular to the extracellular space.
If this is true (correct me if I am wrong), a low serum magnesium could be
contributed to a high calcitonin activity. In the original case this seemed
plausible, because both calcium and PTH was low.
Elevated levels of (thyro)calcitonin can be seen at many occasions, e g
great traumatic injuries, in cows with parturient paresis and in C-cell
malignancies of the thyroidea.
Most laboratories measure PTH, but it should be equally important to
measure calcitonin in disturbances of calcium and (probably) magnesium
metabolism. So why measure PTH but not calcitonin?
Mr Sten Öhman, PhD
Sten Öhman, PhD
Elfin Lab & Milieuconsult
P O Box 133
S-590 70 Ljungsbro
Sweden
Tel Nat: 013-368940 Int: +46 13 368940
Fax Nat: 013-368941 Int: +46 13 368941
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