fredag 8 april 2016

Kantaako riittoisa kolesterolikerros D-vitamiinin funktion paremmin?

http://www.ncbi.nlm.nih.gov/pubmed/25838999
Ehkä statiininkäyttäjien D-vitamiinintarve on normaalia suurempi.

N Am J Med Sci. 2015 Mar;7(3):86-93. doi: 10.4103/1947-2714.153919.

Statin Intolerance Because of Myalgia, Myositis, Myopathy, or Myonecrosis Can in Most Cases be Safely Resolved by Vitamin D Supplementation.Khayznikov M1, Hemachrandra K1, Pandit R1, Kumar A1, Wang P1, Glueck CJ1.Abstract

BACKGROUND: Low serum vitamin D can cause myalgia, myositis, myopathy, and myonecrosis. Statin-induced myalgia is a major and common cause of statin intolerance. Low serum vitamin D and statins, additively or synergistically, cause myalgia, myositis, myopathy, and/or myonecrosis. Statin-induced myalgia in vitamin D deficient patients can often be resolved by vitamin D supplementation, normalizing serum vitamin D levels.

AIMS: In 74 men and 72 women (age 59 ± 14 years) intolerant to 2 or more statins because of myalgia, myositis, myopathy, or myonecrosis and found to have ( under 32 ng/mL) serum vitamin D, we prospectively assessed whether vitamin D supplementation (vitamin D2: 50,000-100,000 units/week) to normalize serum vitamin D would allow successful rechallenge therapy with statins.

MATERIALS AND METHODS: Follow-up evaluation on vitamin D supplementation was done on 134 patients at 6 months (median 5.3), 103 patients at 12 months (median 12.2), and 82 patients at 24 months (median 24).

RESULTS: Median entry serum vitamin D (22 ng/mL, 23 ng/mL, and 23 ng/mL) rose at 6 months, 12 months, and 24 months follow-up to 53 ng/mL, 53 ng/mL, and 55 ng/mL, respectively  on vitamin D therapy (50,000-100,000 units/week). On vitamin D supplementation, serum vitamin D normalized at 6 months, 12 months, and 24 months follow-up in 90%, 86%, and 91% of the patients, respectively.

 On rechallenge with statins while on vitamin D supplementation, median low-density lipoprotein cholesterol (LDLC) fell from the study entry (167 mg/dL, 164 mg/dL, and 158 mg/dL) to 90 mg/dL, 91 mg/dL, and 84 mg/dL, respectively. On follow-up at median 6 months, 12 months, and 24 months on statins and vitamin D, 88%, 91%, and 95% of the previously statin-intolerant patients, respectively, were free of myalgia, myositis, myopathy, and/or myonecrosis.

CONCLUSIONS: Statin intolerance because of myalgia, myositis, myopathy, or myonecrosis associated with low serum vitamin D can be safely resolved by vitamin D supplementation (50,000-100,000 units /week) in most cases (88-95%).

KEYWORDS: Myalgia; myonecrosis; myopathy; myositis; rhabdomyolysis; statin intolerance; statin rechallenge; vitamin D deficiency; vitamin D supplementation

PMID: 25838999 [PubMed]  PMCID: PMC4382771  Free PMC Article

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