Treatment options for mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome.

Abstract:

:Mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome is a rare neurodegenerative disease caused by the decreased ability of cells to produce sufficient energy in the form of adenosine 5'-triphosphate. Although it is one of the most common maternally inherited mitochondrial disorders, its exact incidence is unknown. Caused most frequently by an A-to-G point mutation at the 3243 position in the mitochondrial DNA, MELAS syndrome has a broad range of clinical manifestations and a highly variable course. The classic neurologic characteristics include encephalopathy, seizures, and stroke-like episodes. In addition to its neurologic manifestations, MELAS syndrome exhibits multisystem effects including cardiac conduction defects, diabetes mellitus, short stature, myopathy, and gastrointestinal disturbances. Unfortunately, no consensus guidelines outlining standard drug regimens exist for this syndrome. Many of the accepted therapies used in treating MELAS syndrome have been identified through a small number of clinical trials or isolated case reports. Currently, the drugs most often used include antioxidants and various vitamins aimed at minimizing the demands on the mitochondria and supporting and maximizing their function. Some of the most frequently prescribed agents include coenzyme Q(10), l-arginine, B vitamins, and levocarnitine. Although articles describing MELAS syndrome are available, few specifically target education for clinical pharmacists. This article will provide pharmacists with a practical resource to enhance their understanding of MELAS syndrome in order to provide safe and effective pharmaceutical care.

journal_name

Pharmacotherapy

journal_title

Pharmacotherapy

authors

Santa KM

doi

10.1592/phco.30.11.1179

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

1179-96

issue

11

eissn

0277-0008

issn

1875-9114

pii

10.1592/phco.30.11.1179

journal_volume

30

pub_type

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