Argentine hemorrhagic fever (AHF) is a rare and potentially fatal viral disease caused by the Junin virus, a member of the Arenaviridae family. It is found in rural areas of Argentina, where it is spread by contact with infected rodents. Symptoms ...

Arginase deficiency is a rare inherited disorder characterized by complete or partial lack of the enzyme arginase. Arginase is one of six enzymes that play a role in the breakdown and removal of nitrogen from the body, a process known as the urea ...

Arginase-1 deficiency is a rare genetic disorder caused by a mutation in the arginase-1 gene. This gene is responsible for producing the enzyme arginase-1, which is necessary for the body to break down the amino acid arginine. Without this enzyme,...

Arginase deficiency is a rare inherited disorder characterized by complete or partial lack of the enzyme arginase. Arginase is one of six enzymes that play a role in the breakdown and removal of nitrogen from the body, a process known as the urea ...

Argininemia is an inherited metabolic disorder caused by a deficiency of the enzyme arginase. This enzyme is responsible for breaking down the amino acid arginine, which is essential for normal growth and development. People with argininemia are u...

Argininie Glycine Amidinotransferase Deficiency (AGAT Deficiency) is a rare genetic disorder caused by a deficiency of the enzyme arginine glycine amidinotransferase (AGAT). AGAT is responsible for the production of creatine, an important molecule...

Argininosuccinic aciduria is a rare inherited disorder characterized by deficiency or lack of the enzyme argininosuccinate lyase (ASL). Argininosuccinate lyase is one of six enzymes that play a role in the breakdown and removal of nitrogen from th...

Argininosuccinic aciduria is a rare inherited disorder characterized by deficiency or lack of the enzyme argininosuccinate lyase (ASL). Argininosuccinate lyase is one of six enzymes that play a role in the breakdown and removal of nitrogen from th...

Argininosuccinic aciduria (ASA) is an inherited metabolic disorder caused by a deficiency of the enzyme argininosuccinate lyase. This enzyme is responsible for breaking down the amino acid arginine, which is essential for normal growth and develop...

Ahumada-Del Castillo is a rare endocrine disorder affecting adult females, which is characterized by impairment in the function of the pituitary and hypothalamus glands. Symptoms may include the production of breast milk (lactation) not associated...

Argyria is a rare condition caused by long-term exposure to silver. It is characterized by a blue-gray discoloration of the skin, eyes, and mucous membranes. It is caused by the accumulation of silver particles in the body, which can be ingested t...

Holoprosencephaly (HPE) is the failure of the prosencephalon, or forebrain, to develop normally. The forebrain is a region of the brain in the fetus that develops into parts of the adult brain, including the cerebral cortex. Instead of the normal ...

Brachioplasty, more commonly known as an arm lift, is a surgical operation that: Reduces excessive, downward-drooping sagging skin The underlying supporting tissue that determines the contour of the upper arm is tightened ...

Chiari malformations are a group of complex brain abnormalities that affect the area in lower back of the skull where the brain and spinal cord connect. Chiari malformations are thought to be present at birth (congenital), although in many cases t...

Arnold-Chiari malformation type I is a congenital disorder in which the lower part of the brain, the cerebellum, is displaced downward into the upper spinal canal. This displacement can cause a variety of symptoms, including headaches, dizziness, ...

Arnold-Chiari malformation type II is a rare neurological disorder caused by a structural defect in the brain. It is characterized by a downward displacement of the cerebellar tonsils through the foramen magnum (the opening at the base of the skul...

Aromatase deficiency is a rare genetic disorder caused by a mutation in the CYP19A1 gene. This gene is responsible for producing the enzyme aromatase, which is responsible for converting androgens (male hormones) into estrogens (female hormones). ...