Mindblown: a blog about philosophy.

  • Aicardi syndrome

    A genetic disorder characterized by the partial or complete agenesis of the corpus callosum (the structure that links the 2 hemispheres of the brain), infantile spasms (a characteristic form of childhood seizures), mental retardation, and an ocular (eye) abnormality called chorioretinal lacunae in which there are lacunae (holes) in the retina of the eye. Aicardi syndrome may be associated with other brain…

  • AHD

    Abbreviation for alveolar hydatid disease; American Hospital Directory; and atherosclerotic heart disease.

  • AHC

    Alternating hemiplegia of childhood.

  • Agyrophobia

    Abnormal and persistent fear of crossing streets, highways and other thoroughfares; fear of thoroughfares themselves. Sufferers experience anxiety even though they realize that streets, highways and other thoroughfares pose no threat commensurate with their fear. Formed from the Greek “gyrus” (turning or whirling) and the Greek “phobos” (fear). The first letter, “a,” is privative–that is, it creates a…

  • AGXT

    A gene that provides instructions for making a liver enzyme called alanine-glyoxylate aminotransferase (AGXT). Inside liver cells, this enzyme is found in peroxisomes, structures that contain many different enzymes used to produce energy and the basic materials important for cellular activities. AGXT converts a compound called glyoxylate to glycine, an amino acid that is a building block…

  • Ague

    A fever (such as from malaria) that is marked by paroxysms of chills, fever, and sweating recurring regular intervals. Also a fit of shivering, a chill. Hence, ague can refer to both chills and fevers. Pronounced ‘A-(“)gyu with the accent solidly on the “A”, the word “ague” is an example of how medical terminology changes with time. Not only are new terms introduced…

  • Agreement, arbitration

    An arrangement in which the patient waives the right to sue the physician and, instead, agrees to submit any dispute to arbitration. Arbitration agreements are legal and binding. The arguments in their favor are that, for patients, the case can be settled faster, and more money can go to the patient (rather than to a…

  • Agranulocytosis, infantile genetic

    Children born with this condition lack neutrophils (a type of white blood cell that is important in fighting infection). These children suffer frequent infections from bacteria which in the past led to death in three-quarters of cases before 3 years of age. This disease is also known as severe congenital neutropenia (SCN). Children with SCN have no…

  • Agranulocytosis

    A marked decrease in the number of granulocytes. Granulocytes are a type of white blood cell filled with microscopic granules that are little sacs containing enzymes that digest microorganisms. Granulocytes are part of the innate, somewhat non specific infection-fighting immune system. They do not respond exclusively to specific antigens, as do B-cells and T-cells. Agranulocytosis…

  • Agoraphobia

    An abnormal and persistent fear of public places or open areas, especially those from which escape could be difficult or in which help might not be immediately accessible. Persons with agoraphobia frequently also have panic disorder. People with mild agoraphobia often live normal lives by avoiding anxiety-provoking situations. In the most severe agoraphobia, the victims may be incapacitated and homebound. Agoraphobia…

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