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Calcitonin deficiency does not lead to hypercalcaemia, and excess calcitonin from tumours does not lead to hypocalcaemia. Therefore, most effects of calcitonin are evidently offset by appropriate regulation through the actions of PTH and vitamin D.
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www.mfi.ku.dk/ppaulev/chapter28/kap28.htm
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Find out all about what happens when there is an excess of calcitonin in the body, including how it works and what it means for you, as well as common risks and side effects. ... What Happens When There Is An Excess Of Calcitonin In The Bod...
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www.healthcentral.com/osteoporosis/h/what-happens-when-...
www.healthcentral.com/osteoporosis/h/what-happens-when-there-is-an-excess-of-calcitonin-in-the-body.html
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Original Article from The New England Journal of Medicine -- Axial and appendicular bone mineral density in patients with long-term deficiency or excess of calcitonin ... Whether calcitonin deficiency causes and calcitonin excess prevents bone loss is controversial. We therefore measured plasma calcitonin levels and...
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content.nejm.org/cgi/content/abstract/317/9/537
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Two of the 4 have died but plasma calcitonin activity was measured in the 2 surviving children and was not found to be elevated. A relationship between circulating calcitonin excess and osteopetrosis cannot be substantiated.
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jcem.endojournals.org/cgi/content/abstract/32/2/216
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All cells exposed to excess calcitonin showed no silver granule deposition, confirming the specificity of the procedure. The cells formed in the bone marrow ...
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linkinghub.elsevier.com/retrieve/pii/S875632820100494X
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activity of the multiple calcitonin peaks has not been determined, so it is not possible to deduce if such patients have functional calcitonin excess or ...
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www.springerlink.com/index/L401P0517132XN34.pdf
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Calcitonin – In hyper Ca, calcitonin lowers serum conc of Ca by inhibiting osteoclastic activity which is stimulated by PTH. ... Calcitonin excess – stimulates PTH secretion, over excretion of Ca over a short peroid of time. Deficit – ? abnormal bone growth in children, if osteoclastic activity isn't regulated.
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www.hodsonhome.com/mna2001/physiology/physiology1/phy1s...
www.hodsonhome.com/mna2001/physiology/physiology1/phy1sec6regulating.htm
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Excess growth of certain bones, especially in fingertips (hypertrophic osteoarthropathy) ... Excess levels of growth hormone, possibly linked to excessive bone growth or clubbing of fingers ... Excess calcitonin secretion, usually symptomless...
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www.onconurse.com/factsheets/symptoms_lung.html
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Chronic excess of calcitonin does not produce hypocalcemia and removal of parafollicular cells does not cause hypercalcemia. PTH and Vitamin D3 regulation ...
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www.uic.edu/classes/phyb/phyb402dbh/lecture5.ppt
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