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DefinitionDyssynergia Cerebellaris Myoclonica is a rare neurological condition characterized by involuntary, shock-like muscle jerks (myoclonus) superimposed on poor coordination (dyssynergia) due to cerebellar dysfunction. In simple...
DefinitionDysthymia or low-grade depression is less severe than major depression but more chronic. It occurs twice as often in women as in men. Persistent depressive disorder (PDD) is...
DefinitionDysthyroid optic neuropathy is a serious problem that happens in some people with thyroid eye disease (also called Graves’ orbitopathy). In this condition, the optic nerve—the...
DefinitionDystonia falls under the classification of movement disorders and is characterized by either sustained or intermittent contraction of a muscle or involuntary maintained contraction of agonist...
DefinitionDystonia-parkinsonism-hypermanganesemia-polycythemia and chronic liver disease is a very rare inherited disease. In this condition, a gene called SLC30A10 does not work properly. Because of this, the...
DefinitionDystonia-parkinsonism, Paisán-Ruiz type” refers to an autosomal recessive movement-disorder phenotype caused by biallelic pathogenic variants in the PLA2G6 gene (also known as PARK14). It sits on...
DefinitionDystonic tremor is a neurological condition characterized by uncontrollable shaking or rhythmic movements in different parts of the body. It can affect a person’s quality of...
DefinitionDystonic tremor occurs in people who are affected by dystonia—a movement disorder where incorrect messages from the brain cause muscles to be overactive, resulting in abnormal postures...
DefinitionDystonic Writer’s Cramp is a neurological condition that affects the hand and forearm muscles, leading to involuntary contractions and difficulty in writing. In this guide, we’ll...
DefinitionDystroglycanopathy is a group of inherited muscle diseases that happen because a key muscle-cell protein called alpha-dystroglycan (α-DG) is not properly “sugar-coated” (glycosylated). When α-DG lacks...
DefinitionDystrophia Myotonia/Myotonic dystrophy is characterized by progressive multisystem genetic impairment in relaxation of muscles after voluntary contraction due to repetitive depolarization of the muscle membrane disorders...
