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  2. Calcium metabolism - Wikipedia

    en.wikipedia.org/wiki/Calcium_metabolism

    Calcium metabolism. The body regulates calcium homeostasis with two pathways; one is signaled to turn on when blood calcium levels drop below normal and one is the pathway that is signaled to turn on when blood calcium levels are elevated. Calcium metabolism is the movement and regulation of calcium ions (Ca 2+) in (via the gut) and out (via ...

  3. Homeostasis - Wikipedia

    en.wikipedia.org/wiki/Homeostasis

    The use of sovereign power, codes of conduct, religious and cultural practices and other dynamic processes in a society can be described as a part of an evolved homeostatic system of regularizing life and maintaining an overall equilibrium that protects the security of the whole from internal and external imbalances or dangers.

  4. Osteoporosis - Wikipedia

    en.wikipedia.org/wiki/Osteoporosis

    Frequency. 15% (50 year olds), 70% (over 80 year olds) [ 7 ] Osteoporosis is a systemic skeletal disorder characterized by low bone mass, micro-architectural deterioration of bone tissue leading to more porous bone, and consequent increase in fracture risk. It is the most common reason for a broken bone among the elderly. [ 3 ]

  5. Bone remodeling - Wikipedia

    en.wikipedia.org/wiki/Bone_remodeling

    Bone tissue is removed by osteoclasts, and then new bone tissue is formed by osteoblasts. Both processes utilize cytokine (TGF-β, IGF) signalling.In osteology, bone remodeling or bone metabolism is a lifelong process where mature bone tissue is removed from the skeleton (a process called bone resorption) and new bone tissue is formed (a process called ossification or new bone formation).

  6. Osteomalacia - Wikipedia

    en.wikipedia.org/wiki/Osteomalacia

    Osteomalacia is a disease characterized by the softening of the bones caused by impaired bone metabolism primarily due to inadequate levels of available phosphate, calcium, and vitamin D, or because of resorption of calcium. The impairment of bone metabolism causes inadequate bone mineralization. Osteomalacia in children is known as rickets ...

  7. Bone resorption - Wikipedia

    en.wikipedia.org/wiki/Bone_resorption

    Bone remodeling is a process which maintains bone strength and ion homeostasis by replacing discrete parts of old bone with newly synthesized packets of proteinaceous matrix. [5] Bone is resorbed by osteoclasts, and is deposited by osteoblasts in a process called ossification. [6] Osteocyte activity plays a key role in this process. Conditions ...

  8. Chronic kidney disease–mineral and bone disorder - Wikipedia

    en.wikipedia.org/wiki/Chronic_kidney_disease...

    Chronic kidney disease–mineral and bone disorder (CKD–MBD) is one of the many complications associated with chronic kidney disease. It represents a systemic disorder of mineral and bone metabolism due to CKD manifested by either one or a combination of the following: [1][2] CKD–MBD explains, at least in part, the high morbidity and ...

  9. Paget's disease of bone - Wikipedia

    en.wikipedia.org/wiki/Paget's_disease_of_bone

    James Paget. Paget's disease of bone (commonly known as Paget's disease or, historically, osteitis deformans) is a condition involving cellular remodeling and deformity of one or more bones. The affected bones show signs of dysregulated bone remodeling at the microscopic level, specifically excessive bone breakdown and subsequent disorganized ...

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