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Related Concept Videos

Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

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The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
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Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

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The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
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...
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Bone Disorders01:29

Bone Disorders

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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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...
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Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
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...
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The Bone Matrix01:18

The Bone Matrix

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Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
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Skeleton and Calcium Homeostasis01:21

Skeleton and Calcium Homeostasis

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Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
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Related Experiment Video

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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
07:56

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

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Nutrition and bone health.

C M Weaver1

  • 1Department of Nutrition Science, Purdue University, West Lafayette, IN, USA.

Oral Diseases
|June 3, 2016
PubMed
Summary
This summary is machine-generated.

Osteoporosis, a condition of low bone mass, significantly increases fracture risk, especially in women over 50. Lifestyle factors like diet and exercise are crucial for maintaining bone health and preventing fractures.

Keywords:
bonedietlifestagenutrition

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Area of Science:

  • Bone biology and osteoporosis research.
  • Nutritional science and public health.

Background:

  • Low bone mass is a primary risk factor for fractures.
  • Osteoporosis affects over 10% of the population, with a 1:2 prevalence in women over 50.
  • Genetics accounts for over half of bone mass variation.

Purpose of the Study:

  • To highlight the impact of lifestyle choices on fracture risk.
  • To emphasize the role of nutrients in bone health.
  • To provide dietary recommendations for maintaining bone mineral density.

Main Methods:

  • Review of established knowledge on bone metabolism and osteoporosis.
  • Analysis of dietary components and their contribution to bone health.
  • Examination of lifestyle factors influencing bone mineral density.

Main Results:

  • Dietary nutrients are essential for bone structure and turnover.
  • Daily mineral loss necessitates dietary replacement.
  • Weight-bearing exercise and adequate nutrient intake mitigate fracture risk.

Conclusions:

  • Recommended intake includes three daily servings of dairy.
  • Nutrient-rich alternatives include fortified juices, plant-based beverages, and tofu.
  • Calcium and vitamin D supplements can address potential nutrient deficiencies.