Related Experiment Video
Updated: Jun 4, 2026
10:46
A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
Published on: December 9, 2015
Enhanced radiosensitivity in 1,25-dihydroxyvitamin D3 deficient mice
Zeng-Li Zhang1, Xiao-Fei Ding, Jian Tong
1Department of Toxicology, School of Radiation Medicine and Public Health, Soochow University, Suzhou, Jiangsu, 215123, The People’s Republic of China.
Journal of Radiation Research
|February 24, 2011
Summary
Vitamin D deficiency impairs bone formation and significantly reduces survival rates and blood cell recovery after radiation exposure in mice. These findings highlight vitamin D
Area of Science:
- Radiation biology
- Endocrinology
- Hematology
Background:
- Vitamin D is crucial for bone health and may influence other physiological processes.
- The role of vitamin D in hematopoietic recovery following radiation injury is not fully understood.
Purpose of the Study:
- To investigate the impact of vitamin D deficiency on hematopoiesis recovery after radiation.
- To determine if impaired osteogenesis due to vitamin D deficiency affects radiosensitivity.
Main Methods:
- Utilized 25-hydroxyvitamin D-1α-hydroxylase gene knockout (KO) mice (vitamin D deficient) and wild-type (WT) mice.
- Subjected mice to varying doses of gamma radiation (6 or 8 Gy).
- Monitored survival rates, peripheral blood cell counts, and bone marrow cellularity post-irradiation.
Main Results:
- KO mice exhibited significantly lower survival rates compared to WT mice after irradiation.
- White blood cell recovery was notably delayed in KO mice post-radiation.
- WT mice showed better red blood cell count recovery and higher platelet counts than KO mice.
- Bone marrow cellularity was significantly reduced in KO mice compared to WT mice.
Conclusions:
- Vitamin D deficiency enhances radiosensitivity in mice.
- Impaired osteogenesis resulting from vitamin D deficiency negatively impacts hematopoietic recovery after radiation exposure.
