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Abbreviation for intrinsic sphincter deficiency.


(di-fish'en-se) [L. deficere, to lack]
Less than the normal amount; a lack.

acid lipase deficiency

One of two autosomal recessive illnesses in which the body lacks an enzyme for metabolizing fats, causing cholesterol, oils, or waxes to accumulate in abnormal amounts in the body. The acid lipase diseases are Wolman disease and cholesterol ester storage disease. Synonym: acid lipase disease
Acid lipase disease.

antithrombin-III deficiency

An inherited hypercoagulable state. It is due to absent or deficient levels of antithrombin III in the blood.
Synonym: hereditary thrombophilia

aspartoacylase deficiency

Canavan disease.

biotinidase deficiency

An autosomal recessive disease in which affected children fail to metabolize biotin effectively. Seizures, encephalopathy, neurodevelopmental delay, spasticity or diminished muscle tone, paresis, visual disturbances, deafness, skin rash, and hair loss commonly occur. Immediate ongoing treatment with supplemental biotin can effectively suppress the symptoms of this disease.

branching enzyme deficiency

Type IV glycogen storage disease.

ceramidase deficiency

Farber disease.

color deficiency

See: color blindness

color vision deficiency

See: color blindness

copper deficiency

The clinical consequences of inadequate consumption or absorption of dietary copper. Its hallmarks include an unsteady gait, neuropathy, muscle spasticity, and, occasionally, anemia. It may occur as a consequence of gastric bypass surgery or long-term parenteral nutrition.

delta storage pool deficiency

Dense granule deficiency syndrome.

functional iron deficiency

A deficiency of iron significant enough to affect the development of healthy red blood cells. It may precede the appearance of measurable anemia.

Patient care

Functional iron deficiency may be defined by the presence of hypochromatic red cells; by an increase in hemoglobin production after test doses of administered iron; or, most accurately, by the measurement of the mean hemoglobin content of reticulocytes. It is common in patients receiving hemodialysis and in critically ill persons.


Treatments include iron and folate supplements and epoetin alpha (Procrit) to increase red blood cell production. In emergencies, infusion of fresh frozen packed cells or washed packed cells provide temporary relief.

glucose-6-phosphate dehydrogenase deficiency

An X-linked disorder affecting the red blood cells. It is present in the U.S. in about 13% of black males and 2% of black females. The deficiency also occurs in Arab, Mediterranean, and Asian populations. The enzyme is essential to maintaining the integrity of erythrocytes; thus a deficiency of it causes nonimmune hemolytic anemia. There are many variants of the enzyme and great variation in severity of the disease. Some people do not have clinical symptoms until they are exposed to certain drugs (such as antimalarials, antipyretics, sulfonamides) or to fava beans, or when they contract an infectious disease. In others the condition is present at birth. When present at birth, anemia, hepatomegaly, hypoglycemia, and interference with growth are present. In those who have the deficiency but are not affected until exposed to certain drugs or infections, hemolytic anemia and jaundice occur.


Laboratory tests for evidence of the enzyme deficiency are available.


The only treatment is avoidance of drugs known to cause hemolysis and avoidance of fava beans if the person is known to be sensitive to them.

immune deficiency


intrinsic sphincter deficiency

Abbreviation: ISD
Weakening of the urethral sphincter muscles, a frequent cause of stress urinary incontinence.

leukocyte adhesion deficiency

Abbreviation: LAD
A rare autosomal recessive disorder in which white blood cells are unable to migrate out of blood vessels in response to infection. It often presents in early childhood with severe periodontal disease, premature loss of teeth, and recurrent infections.

medium-chain acyl-CoA dehydrogenase deficiency

Abbreviation: MCADD
An inherited disorder of faulty nutrient oxidation in which affected infants are unable to metabolize fatty acids when their stores of blood glucose are low, e.g., between meals. The disease is common, occurring in 1 in 10,000 infants, and often fatal in infancy. Surviving infants may suffer brain damage from inadequate nutrition to the central nervous system during fasts.

mental deficiency

See: mental retardation

muscle phosphorylase deficiency

McArdle disease

ornithine transcarbamylase deficiency

The most common urea cycle enzyme deficiency disorder inherited as an autosomal recessive trait, characterized by the absence of ornithine transcarbamylase (an enzyme in the urea cycle), which results in the excessive buildup of ammonia in the bloodstream. The disease is typically diagnosed in infancy and occurs in less than 1 in 8000 births.

phosphofructokinase deficiency

Abbreviation: PFKM
A glycogen storage disease caused by a deficiency of muscle phosphofructokinase and characterized by muscular weakness, and muscle cramps after exercise, hemolysis, hyperuricemia, and myoglobinuria.
Synonym: glycogen storage disease type VII; Tarui disease

deficiency of sweating


ZAP70 deficiency

Zeta-chain associated protein kinase deficiency.

zeta-chain associated protein kinase 70kDa deficiency

Abbreviation: ZAP70 deficiency
A severe combined immunodeficiency disease in which CD8+ T cells are missing from the circulation and the thymus develops abnormally.

intrinsic sphincter deficiency

Abbreviation: ISD
Weakening of the urethral sphincter muscles, a frequent cause of stress urinary incontinence.
See also: deficiency
References in periodicals archive ?
For lawmakers trying to reform the school finance system, the fight over this program adds another layer of complication as they debate whether it's possible to make broad reforms that don't hurt districts, like Texas City ISD, that face special circumstances.
It is measured as users' perceived importance and personal relevance of ISD (Barki and Hartwick, 1994) based on an assumption that, with or without actual participation, users can be influenced to sense the importance and relevance of an ISD project.
The preceding list of obsolete ISD goals under assumptions of emergent organizations implies that an alternative goal set arises from the alternative assumption set.
Lona Alexander Mitchell of Beaumont ISD and Dolores Bell of Big Thought
During the event, the ISD Alumni officials will also honour former student achievers who have succeeded in the areas related to their work.
III) ISD Super tariff: All new subscribers of the telecom company will be able to avail the ISD Super tariff pre-activated facility in their new plan for a period of 90 days till March 30, 2014.
One note: Lackland, Fort Sam Houston, Boys Ranch, Randolph, and South Texas ISDs are not included in the database.
Michelle Ribant is the math and science director for Eastern Upper Peninsula ISD, and loves using handhelds.
I look forward to leading activities to drive sales, profits and market share while promoting the ISD mission of delivering technologies with a new level of usability and affordability.
Under the prefixed based ISD package, customers will be able to make international calls to some of the largest called destinations such the US, Canada, Singapore, China, UK at 1p/sec at zero-extra cost.
In Austin ISD, Meria Carstarphen receives whatever annual salary increase other administrators get.
Most notably, systems have been overly complicated to operate and install, providing frustration for installers and end users alike," Johnston, CEO, ISD said.