The word "MELAS" is spelled using the International Phonetic Alphabet (IPA) as /ˈmɛləs/. The first sound, /m/, is a bilabial nasal, which means the sound is made by closing the lips and letting air flow through the nose. The second sound, /ɛ/, is a mid front unrounded vowel, like in the word "red". The third sound, /l/, is a lateral consonant made by touching the tip of the tongue to the alveolar ridge before letting air flow through the sides of the mouth. The fourth sound, /əs/, is pronounced like "us" and is a schwa sound followed by the /s/ sound, which is a voiceless alveolar sibilant. Overall, the word "MELAS" is pronounced as "MELL-us".
MELAS, an acronym for Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like episodes, refers to a rare genetic disorder that mainly affects the energy-producing unit of cells called mitochondria. This condition falls into a broader category known as mitochondrial diseases. MELAS primarily manifests in childhood or early adulthood and is characterized by a wide range of symptoms, including brain dysfunction, muscle weakness, stroke-like episodes, and elevated levels of lactic acid in the blood.
Mitochondrial dysfunction in individuals with MELAS disrupts the normal energy production process, leading to various complications. The symptoms can vary greatly among affected individuals and may include migraines, seizures, vision or hearing loss, difficulty speaking or swallowing, gastrointestinal issues, and muscle weakness or pain. The stroke-like episodes that occur in MELAS can result in cognitive impairment, memory loss, and paralysis.
Diagnosis of MELAS involves a combination of clinical evaluation, family history analysis, and genetic testing to identify specific mutations in mitochondrial DNA. While there is no cure for MELAS, treatment options mainly focus on managing symptoms, such as physical therapy, medication for seizures or migraines, and dietary modifications to control lactic acid levels. Coordinated care from various specialists, including neurologists, geneticists, and other healthcare professionals, is crucial to address the multifaceted aspects of this complex disorder.
Overall, MELAS is a rare mitochondrial disease characterized by encephalopathy, lactic acidosis, and stroke-like episodes, necessitating comprehensive medical management to improve quality of life for affected individuals.