Related Experiment Video
Updated: May 7, 2026

12:23
Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
Published on: April 14, 2014
14.0K
RETROSPECTIVE OBSERVATIONAL STUDY OF VITAMIN D STATUS IN NEUROLOGICAL PATIENTS
Lucija Zadro Matovina1,2, Helena Trputac1, Antonia Nicinger3
1Department of Neurology, Sestre milosrdnice University Hospital Center, Zagreb, Croatia.
Acta Clinica Croatica
|January 27, 2025
Summary
Neurological patients show high rates of vitamin D insufficiency, though slightly lower than the general Croatian population. Supplementation and autoimmune disease diagnosis significantly impact vitamin D levels.
Area of Science:
- Neurology
- Endocrinology
- Public Health
Background:
- Vitamin D deficiency is a growing global health concern.
- Neurological conditions may be linked to altered vitamin D metabolism.
- Understanding vitamin D status in neurological patients is crucial for management.
Purpose of the Study:
- To determine the prevalence of vitamin D insufficiency in Croatian neurological patients.
- To compare this prevalence with the general Croatian population.
- To explore factors influencing vitamin D insufficiency in this cohort, including supplementation and autoimmune disease.
Main Methods:
- Retrospective analysis of 371 neurological patients over one year.
- Data collected: demographics, neurological diagnosis, serum 25-hydroxyvitamin D levels, and vitamin D3 supplementation history.
- Statistical comparison of vitamin D insufficiency rates across subgroups.
Main Results:
- 74.66% of neurological patients exhibited vitamin D insufficiency (<75 nmol/L).
- This prevalence was slightly lower than in the general Croatian population.
- Vitamin D insufficiency varied significantly based on vitamin D3 supplementation and autoimmune disease diagnosis, but not gender, season, or region.
Conclusions:
- A high proportion of neurological patients suffer from vitamin D insufficiency.
- Vitamin D supplementation and the presence of autoimmune diseases are key factors influencing vitamin D status in these patients.
- Further research into targeted vitamin D interventions for neurological patients is warranted.
Related Concept Videos
Connective Tissue Cell Types
Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Bioavailability Study Design: Healthy Subjects Versus Patients
Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
Multiple Sclerosis l: Introduction
Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...

