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- Title
Efficacy of Menatetrenone (Vitamin K2) against Non-Vertebral and Hip Fractures in Patients with Neurological Diseases.
- Authors
Iwamoto, Jun; Matsumoto, Hideo; Takeda, Tsuyoshi
- Abstract
Background and objective: Patients with neurological diseases such as Alzheimer's disease, stroke and Parkinson's disease have been reported to have vitamin K deficiency secondary to malnutrition, which increases the risk of non-vertebral and hip fractures. The purpose of the present study was to clarify the efficacy of menatetrenone (vitamin K2) against non-vertebral and hip fractures in patients with neurological diseases. Methods: A hterature search was conducted on PubMed from January 1995 to July 2008 to identify randomized controlled trials (RCTs) of use of menatetrenone against non-vertebral and hip fractures in patients with neurological diseases. A meta-analysis of all RCTs meeting these criteria was then performed. Results: Three RCTs of patients with Alzheimer's disease (n= 178, mean age 78 years), stroke (n = 99, mean age 66 years) and Parkinson's disease (n= 110, mean age 72 years) met the criteria for meta-analysis. These RCTs did not include placebo controls but did have non-treatment controls. According to the meta-analysis, the overall relative risks (95% confidence intervals) for non-vertebral and hip fractures with menatetrenone treatment compared with non-treatment were 0.13 (0.05, 0.35) and 0.14 (0.05, 0.43), respectively, in patients with neurological diseases. No severe adverse events were reported with menatetrenone treatment. Conclusion: The present meta-analysis of three RCTs suggests that there is efficacy for menatetrenone treatment against non-vertebral and hip fractures among patients with neurological diseases. Further larger placebo-controlled trials are needed to confirm the results of the present study.
- Subjects
VITAMIN K2; DRUG efficacy; TREATMENT of fractures; BRAIN diseases; NEUROLOGICAL intensive care; ALZHEIMER'S patients; NUTRITION disorders; PATIENTS
- Publication
Clinical Drug Investigation, 2009, Vol 29, Issue 7, p471
- ISSN
1173-2563
- Publication type
Article
- DOI
10.2165/00044011-200929070-00005