@article{ref1,
title="Efficacy of high-dose versus low-dose vitamin D supplementation on serum levels of inflammatory factors and mortality rate in severe traumatic brain injury patients: study protocol for a randomized placebo-controlled trial",
journal="Trials",
year="2020",
author="Arabi, Seyed Mostafa and Sedaghat, Alireza and Ehsaei, Mohammad Reza and Safarian, Mohammad and Ranjbar, Golnaz and Rezaee, Hamid and Rezvani, Reza and Tabesh, Hamed and Norouzy, Abdolreza",
volume="21",
number="1",
pages="e685-e685",
abstract="BACKGROUND: Traumatic brain injury (TBI) is the most common trauma worldwide and is a leading cause of injury-related death and disability. Inflammation is initiated as a result of the TBI, which is in association with severity of illness and mortality in brain trauma patients, especially in subdural hemorrhage and epidural hemorrhage cases. A high percentage of adults admitted to the intensive care unit with TBI are diagnosed with vitamin D deficiency; this deficiency may induce impaired immune responses and increase the risk of infections. Vitamin D intervention has been shown to modulate pro- and anti-inflammatory cytokines in non-critically ill patients, but to date, there is no substantial data on the effectiveness of vitamin D for the improvement of immune function in traumatic brain injury patients.   METHODS/DESIGN: A randomized clinical trial (RCT) will be performed on 74 Iranian adults 18-65 years old with brain trauma and will be treated daily with vitamin D supplements (100,000 IU oral drop) or a similar placebo (1000 IU) for 5 days.   DISCUSSION: If this randomized clinical trial demonstrates reductions in inflammatory cytokines, it would provide evidence for a multicenter clinical trial to evaluate the efficacy of vitamin D supplementation in neurocritically ill patients. Since vitamin D supplements are inexpensive and safe, this clinical trial could have the potential to improve clinical outcomes in traumatic brain injury patients through reduction of inflammation and infection-associated morbidity and mortality rates.   TRIAL REGISTRATION: Iranian Registry of Clinical Trials, IRCT20180619040151N3. Registered on 10 August 2019.<p /> <p>Language: en</p>",
language="en",
issn="1745-6215",
doi="10.1186/s13063-020-04622-6",
url="http://dx.doi.org/10.1186/s13063-020-04622-6"
}