Vitamin D deficiency and altered bone mineral metabolism in HIV-infected individuals

Allison Ross Eckard1, Grace A McComsey

  • 1Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA, across3@emory.edu.

Insights

Vitamin D deficiency is common in people with HIV and linked to serious health issues like osteoporosis and heart disease. More research, especially clinical trials, is needed to understand this link.

Area of Science:

  • Internal Medicine
  • Infectious Diseases
  • Endocrinology

Background:

  • Combination antiretroviral therapy has improved longevity for HIV patients.
  • Chronic HIV infection is associated with increased comorbidities, including osteoporosis, cardiovascular disease, and immune dysfunction.
  • Vitamin D status is known to influence these comorbidities in the general population.

Purpose of the Study:

  • To review recent data on vitamin D deficiency in HIV-infected patients.
  • To highlight the association between vitamin D deficiency and HIV-related complications.
  • To underscore the need for further research, particularly randomized controlled trials.

Main Methods:

  • Review of recent observational and cohort studies.
  • Analysis of data linking vitamin D status to HIV-related comorbidities.
  • Identification of gaps in randomized, placebo-controlled trial data.

Main Results:

  • A high prevalence of vitamin D deficiency is observed in HIV-infected patients.
  • Vitamin D deficiency is associated with increased rates of osteoporosis, cardiovascular disease, and immune dysfunction in this population.
  • Limited randomized, placebo-controlled trial data exists.

Conclusions:

  • Vitamin D deficiency is an alarming issue in HIV-infected individuals.
  • The association between vitamin D deficiency and HIV-related complications warrants further investigation.
  • More robust clinical trials are necessary to establish causality and guide interventions.

Related Concept Videos

Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

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...
5.1K
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...
8.0K
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
1.7K
Role of Skin in Vitamin D Synthesis01:23

Role of Skin in Vitamin D Synthesis

The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin...
8.0K