Calcitonin is a hormone that helps regulate calcium levels in the blood by lowering them when they become too high. It achieves this by slowing down the activity of osteoclasts, the cells responsible for bone resorption (the process of breaking down bone tissue and releasing minerals such as calcium into the bloodstream). Calcitonin is primarily …
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Medullary thyroid carcinoma

What is medullary thyroid carcinoma? Medullary thyroid carcinoma is a type of thyroid cancer. The tumour starts from specialized C cells normally found in the thyroid gland. What are C cells? C cells (also called parafollicular cells) are a type of neuroendocrine cell that make a hormone called calcitonin. Calcitonin is very important because it …
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