The following statement is an example of the kind of Melungeon Myths being found on the Internet. These statements are being used as an attempt to link Melungeons to non-existent Turkish ancestors and do not bear close scrutiny.
Machado−Joseph disease (MJD) is an autosomal dominant, multisystem neurodegenerative disorder involving predominantly cerebellar, pyramidal, extrapyramidal, motor neuron and oculomotor systems. Although it was first reported in families of Portuguese−Azorean descent, MJD has also been described in non−Azorean families from various countries, being one of the most common hereditary spinocerebellar degenerations. With the use of highly polymorphic microsatellite DNA polymorphisms, we have assigned the gene for MJD to the long arm of chromosome 14 (14q24.3−q32) by genetic linkage to microsatellite loci D14S55 and D14S48 (multipoint lod score Zmax=9.719).
Machado-Joseph disease (MJD)-also called spinocerebellar ataxia type 3-is a rare hereditary ataxia. (Ataxia is a general term meaning lack of muscle control.) The disease is characterized by clumsiness and weakness in the arms and legs, spasticity, a staggering lurching gait easily mistaken for drunkenness, difficulty with speech and swallowing, involuntary eye movements, double vision, and frequent urination. Some patients have dystonia (sustained muscle contractions that cause twisting of the body and limbs, repetitive movements, abnormal postures, and/or rigidity) or symptoms similar to those of Parkinson's disease. Others have twitching of the face or tongue, or peculiar bulging eyes.
Disclaimer:This article is not intended to provide medical advice or diagnosis. Consult a medical health professional if you think you might be suffering from a medical condition.