The Prevalence of Vitamin D Deficiency in Patients With Alzheimer's Disease

Last updated: February 15, 2013
Sponsor: Saglik Bilimleri Universitesi Gulhane Tip Fakultesi
Overall Status: Completed

Phase

N/A

Condition

Dementia

Alzheimer's Disease

Memory Loss

Treatment

N/A

Clinical Study ID

NCT01420315
VDGT-01
G-123456789
  • Ages > 50
  • All Genders

Study Summary

Recent studies indicate that there is a relationship between cognitive decline and vitamin D deficiency. Up to now, no study has investigated the prevalence of vitamin d deficiency in patient with Alzheimer's disease. Our aim is to investigate the prevalence of vitamin D deficiency and analysis the associated characteristics in patients with Alzheimer's disease.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • The patient must have Alzheimer's dementia and their diagnosis must be made accordingto National Institute of Neurological and Communicative Disorders and Stroke and theAlzheimer Disease and Related Disorders Association (NINCDS/ADRDA) and DSM-IV criteria

  • The informed consent form must be given by patients and/or their representatives

Exclusion

Exclusion Criteria:

  • if the causes of dementia (lewy body dementia, vascular dementia, pick disease,frontotemporal dementia...) is out of Alzheimer's dementia,

  • having chronic liver disease and/or end-stage renal disease

  • if the informed consent form is being withdrawn

Study Design

Total Participants: 502
Study Start date:
August 01, 2011
Estimated Completion Date:
August 31, 2012

Study Description

Vitamin D has many physiological functions via skeletal and extra-skeletal effects. Nowadays, it is well known that vitamin d deficiency causes to an increase in disease burden. As the role of vitamin D, the maintenance of balance, the improvement of muscle power, and the augmentation of innate immunity were proven. Some recent studies showed that vitamin D deficiency associates with cardiovascular diseases, autoimmune diseases, and the risk of cancer.

Vitamin D carries out your functions by vitamin d receptors (VDR) located in many cells. Brain neurons and glial cells are including VDR's. It is presumed that the functions of vitamin d in neurons are the regulation of neurotransmission, neuron protection, and immunomodulation. Also,vitamin D has a role in brain development and maturation. Except the functions in central nerve system, vitamin D has effects on peripheral nerve system. It was reported that nerve transduction velocity decreased in vitamin d deficiency.

Vitamin D deficiency and Alzheimer's disease are major public health problems that their incidences increase in advanced ages.Recent studies indicate that there is a relationship between cognitive decline and vitamin D deficiency. VDR receptors in brain specially in hippocampus, hypothalamus, limbic system, subcortical and spinal motor areas were determined.

Up to now, no study has investigated the prevalence of vitamin d deficiency in patient with Alzheimer's disease. Our aim is to investigate the prevalence of vitamin D deficiency and analysis the associated characteristics in patients with Alzheimer's disease.

Connect with a study center

  • Gulhane Medical School Training Hospital

    Ankara, 06018
    Turkey

    Site Not Available

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