Related Experiment Video
Updated: Oct 21, 2025

Megakaryocyte Differentiation and Platelet Formation from Human Cord Blood-derived CD34+ Cells
Published on: December 27, 2017
Vitamin D Replacement Effect on Platelet Counts
Murat Bulent Kucukay1, Recep Alanli1
1Department of Internal Medicine, Faculty of Medicine, Lokman Hekim University, Ankara, Turkey.
Vitamin D treatment significantly lowered platelet counts in patients with vitamin D deficiency. This finding suggests a potential therapeutic role for vitamin D in managing conditions characterized by elevated platelet levels.
Area of Science:
- Internal Medicine
- Endocrinology
- Hematology
Background:
- Vitamin D deficiency is prevalent and linked to various health conditions.
- Platelets play a crucial role in hemostasis and thrombosis.
- The impact of vitamin D on platelet parameters requires further investigation.
Purpose of the Study:
- To investigate the effect of vitamin D treatment on platelet counts.
- To analyze these effects across different age groups in patients with vitamin D deficiency.
Main Methods:
- An observational study conducted in outpatient clinics.
- 1,230 participants with vitamin D deficiency were enrolled and divided into three age groups.
- Complete blood count and vitamin D levels were compared before and after vitamin D replacement therapy.
Main Results:
- Vitamin D treatment led to a significant decrease in platelet counts and mean platelet volume.
- No significant changes were observed in hemoglobin or neutrophil counts.
- A significant correlation was found between vitamin D levels and changes in platelet counts post-treatment.
Conclusions:
- Vitamin D treatment effectively lowers platelet counts.
- This effect may offer therapeutic benefits for conditions like essential thrombocythemia.
- Further research is warranted to explore the clinical implications of vitamin D's impact on platelet levels.
More Related Videos
Related Concept Videos
Structure and Function of Platelets
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
Role of Vitamins in Maintaining Bone Health
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...
Role of Skin in Vitamin D Synthesis
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...
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Connective Tissue Cell Types
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Formation of the Platelet Plug
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...

