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Related Concept Videos

Bone Disorders01:29

Bone Disorders

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...
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
The Functions of the Skeletal System01:22

The Functions of the Skeletal System

The most apparent functions of the skeletal system are support, protection, and movement. However, bone tissue also performs several other critical metabolic functions. For one, the bone matrix acts as a reservoir for a number of minerals important to the functioning of the body, especially calcium and phosphorus. These minerals, present in the bone tissue, can be released back into the bloodstream when required. Calcium ions, for example, are essential for muscle contractions and controlling...
The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...

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Related Experiment Videos

Atherosclerosis and osteoporosis.

J L Pérez Castrillón1, D de Luis, A Duenas-Laita

  • 1Internal Medicine Department, Rio Hortega University Hospital, Faculty of Medicine, Valladolid, Spain. castrv@terra.es

Minerva Medica
|February 27, 2008
PubMed
Summary

Atherosclerosis and osteoporosis are linked chronic diseases. This review explores their common causes and mechanisms, highlighting an independent association not explained by age or cardiovascular risks.

Area of Science:

  • Cardiovascular Medicine
  • Bone Biology
  • Chronic Disease Epidemiology

Background:

  • Atherosclerosis and osteoporosis are prevalent, costly degenerative chronic diseases.
  • These conditions often present asymptomatically until complications arise.
  • Epidemiological data suggest an independent association between atherosclerosis and osteoporosis.

Purpose of the Study:

  • To review clinical evidence supporting the link between atherosclerosis and osteoporosis.
  • To elucidate potential shared etiopathogenic and physiopathological mechanisms.

Main Methods:

  • Systematic review of clinical studies.
  • Analysis of epidemiological data.
  • Literature review of proposed common mechanisms.

Related Experiment Videos

Main Results:

  • Multiple clinical studies confirm an independent association between the two diseases.
  • The association persists irrespective of age or traditional cardiovascular risk factors.
  • Several common molecular and cellular pathways are implicated.

Conclusions:

  • Atherosclerosis and osteoporosis share underlying biological mechanisms.
  • Understanding these common pathways may lead to novel therapeutic strategies.
  • Further research is warranted to explore these connections comprehensively.