Related Experiment Videos
Secondary osteoporosis - an endocrinological approach focusing on underlying mechanisms
Abstract:
Osteoporosis is a major and increasingly serious public health problem not only in postmenopausal women and people over 70 years old (primary osteoporosis) but also in men under 70 years and premenopausal women (secondary osteoporosis). The most common primary osteoporosis occurs as a result of menopause and aging process. Secondary osteoporosis is a consequence of an underlying cause and frequently is diagnosed after an atraumatic fracture. The pathogenesis of secondary osteoporosis is almost always multifactorial. Certain endocrinopathies, systemic diseases, malignant neoplasias, organ dysfunctions, a variety of medications such as corticosteroids, lifestyle conditions and habits, and also major depression can lead to the secondary osteoporosis. Early diagnosis and treatment can prevent further bone loss and fractures.
Related Concept Videos
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone Remodeling
Hormones and Bone Tissue
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Osteoclasts in Bone Remodeling
Bone Remodeling and Repair
Role of Vitamins in Maintaining Bone Health
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...