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An osteoclast is a large multinucleated cell and human osteoclasts on bone typically have four nuclei [5] and are 150–200 μm in diameter. When osteoclast-inducing cytokines are used to convert macrophages to osteoclasts, very large cells that may reach 100 μm in diameter occur. These may have dozens of nuclei, and typically express major ...
PTHrP acts similarly to parathyroid hormone in that it binds to the parathyroid hormone 1 receptors on the kidneys and bones and causes an increased tubular reabsorption of calcium and activation of osteoclast activity, respectively. [22] Osteoclasts are a type of bone cell which cause bone resorption, releasing calcium into the bloodstream.
Menopause-associated increase production of TNF-α stimulates stromal cells to produce colony stimulating factor 1 (CSF-1) which activates CSF1R and stimulates osteoclasts to reabsorb bone. [ 105 ] Trabecular bone (or cancellous bone) is the sponge-like bone in the ends of long bones and vertebrae.
Osteosclerosis is a condition characterized by abnormal hardening of bone or bone marrow.
[27] 2) PTH inhibits secretion of osteoprotegerina to allow for osteoclast differentiation. [27] 3) PTH will also directly activate osteoclasts to cause bone resorption through degradation of hydroxyapatite and organic material. [27] This then causes bone to release calcium into the blood. Effects of PTH bone resorption. Effects of PTH on the ...
Osteolysis is an active resorption of bone matrix by osteoclasts and can be interpreted as the reverse of ossification.Although osteoclasts are active during the natural formation of healthy bone the term "osteolysis" specifically refers to a pathological process.
2660 17700 Ensembl ENSG00000138379 ENSMUSG00000026100 UniProt O14793 O08689 RefSeq (mRNA) NM_005259 NM_010834 RefSeq (protein) NP_005250 NP_034964 Location (UCSC) Chr 2: 190.06 – 190.06 Mb Chr 1: 53.1 – 53.11 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse In humans, the MSTN gene is located on the long (q) arm of chromosome 2 at position 32.2. Myostatin (also known as growth ...
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