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| This glossary contains: 19186 medical terms |
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Darier disease
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Darier diseaseA genetic skin disease characterized by slowly progressive hardening of the skin (keratoses) around the hair follicles. This disorder is inherited in an autosomal dominant manner and is due to mutation in a gene called ATP2A2 on chromosome 12. Also known as keratosis follicularis.
RELATED TERMS--------------------------------------
Genetic
Hereditary. Having to do with the genes.
Skin
Skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion (through sweat).
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
Follicles
Each month several of these small egg-containing cavities develop on the ovary of an ovulating woman. Each cavity contains a single immature egg; ovulation occurs when a follicle (or sometimes more than one) ruptures and releases an egg.
Autosomal
"Pertaining to a chromosome that is not a sex chromosome; relating to any one of the chromosomes save the sex chromosomes. People normally have 22 pairs of autosomes (44 autosomes) in each cell together with two sex chromosomes (X and Y in the male and XX in the female). "
Dominant
A genetic trait is considered dominant if it is expressed in a person who has only one copy of that gene. (In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes). A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present. (In genetic terms, a recessive trait is one that is phenotypically expressed only in homozygotes).
Mutation
A change in DNA that alters a gene and thus the gene's product, leading in some cases to deformity or disease. Mutations can occur spontaneously during cell division or can be triggered by environmental stresses, such as sunlight, radiation, and chemicals.
Gene
1. A unit of DNA that carries information for the biosynthesis of a specific product in the cell. 2. Ultimate unit by which inheritable characteristics are transmitted to succeeding generations in all living organisms. Genes are contained by, and arranged along the length of, the chromosome. The gene is composed of deoxyribonucleic acid (DNA). Each chromosome of each species has a definite number and arrangement of genes, which govern both the structure and metabolic functions of the cells and thus of the entire organism.
Chromosome
A structural unit within a eukaryotic nucleus that carries genes. A chromosome consists of a long, continuous strand of DNA and associated proteins.
SIMILAR TERMS--------------------------------------
Daricon
Daricon is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): oxyphencyclimine hydrochloride.
PREVIOUS AND NEXT TERMS--------------------------------------
Daltonism
Colorblindness of the red-green type (also known as deuteranopia or deuteranomaly).
Dander
Tiny scales shed from human or animal skin or hair. Dander floats in the air, settles on surfaces and makes up much household dust. Cat dander is a classic cause of allergic reactions.
Dandy fever
An acute mosquito- borne viral illness of sudden onset that usually follows a benign course with headache, fever, prostration, severe joint and muscle pain, swollen glands (lymphadenopathy) and rash.
Danlos syndrome
Better known today as Ehlers-Danlos syndrome (EDS), this is an inherited disorder with easy bruising, joint hypermobility (loose joints), skin laxity, and weakness of tissues. There are a number of different Ehlers-Danlos syndromes which share these features but can be categorized into nine different types.
Danon disease
A genetic disorder characterized by heart problems, mental retardation and muscle weakness that affects males who usually die of cardiac arrhythmia or heart failure at around the age of 30. The disease is due to a deficiency of LAMP-2 (which stands for lysosome-associated membrane protein 2.)
Darier disease
Dark adaptometry
A type of electrophysiologic retinal testing done to measure the period of time which passes before the retina regains its maximal sensitivity to low amounts of light when going from conditions of bright light to darkness.
DASH diet
An eating plan designed to lower the blood pressure. DASH is an acronym for Dietary Approaches to Stop Hypertension. The DASH "combination diet" has been shown to decrease the blood pressure and so helps prevent and control high blood pressure. The DASH "combination diet" is rich in fruits, vegetables, and low fat dairy foods, and low in saturated and total fat. It also is low in cholesterol, high in dietary fiber, potassium, calcium, and magnesium, and moderately high in protein.
Date, expiration
The date for a drug estimated for its shelf life with proper storage in sealed containers away from harmful and variable factors like heat and humidity.
Daughter
1. A female offspring. 2. A female adopted child. 3. A product of radioactive decay. 4. A cell resulting from cell division.
Daw
Abbreviation meaning "dispense as written." One of a number of hallowed abbreviations of terms that have traditionally been used in prescriptions.
RELATED TERMS--------------------------------------
Genetic
Hereditary. Having to do with the genes.
Skin
Skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion (through sweat).
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
Follicles
Each month several of these small egg-containing cavities develop on the ovary of an ovulating woman. Each cavity contains a single immature egg; ovulation occurs when a follicle (or sometimes more than one) ruptures and releases an egg.
Autosomal
"Pertaining to a chromosome that is not a sex chromosome; relating to any one of the chromosomes save the sex chromosomes. People normally have 22 pairs of autosomes (44 autosomes) in each cell together with two sex chromosomes (X and Y in the male and XX in the female). "
Dominant
A genetic trait is considered dominant if it is expressed in a person who has only one copy of that gene. (In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes). A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present. (In genetic terms, a recessive trait is one that is phenotypically expressed only in homozygotes).
Mutation
A change in DNA that alters a gene and thus the gene's product, leading in some cases to deformity or disease. Mutations can occur spontaneously during cell division or can be triggered by environmental stresses, such as sunlight, radiation, and chemicals.
Gene
1. A unit of DNA that carries information for the biosynthesis of a specific product in the cell. 2. Ultimate unit by which inheritable characteristics are transmitted to succeeding generations in all living organisms. Genes are contained by, and arranged along the length of, the chromosome. The gene is composed of deoxyribonucleic acid (DNA). Each chromosome of each species has a definite number and arrangement of genes, which govern both the structure and metabolic functions of the cells and thus of the entire organism.
Chromosome
A structural unit within a eukaryotic nucleus that carries genes. A chromosome consists of a long, continuous strand of DNA and associated proteins.
SIMILAR TERMS--------------------------------------
Daricon
Daricon is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): oxyphencyclimine hydrochloride.
PREVIOUS AND NEXT TERMS--------------------------------------
Daltonism
Colorblindness of the red-green type (also known as deuteranopia or deuteranomaly).
Dander
Tiny scales shed from human or animal skin or hair. Dander floats in the air, settles on surfaces and makes up much household dust. Cat dander is a classic cause of allergic reactions.
Dandy fever
An acute mosquito- borne viral illness of sudden onset that usually follows a benign course with headache, fever, prostration, severe joint and muscle pain, swollen glands (lymphadenopathy) and rash.
Danlos syndrome
Better known today as Ehlers-Danlos syndrome (EDS), this is an inherited disorder with easy bruising, joint hypermobility (loose joints), skin laxity, and weakness of tissues. There are a number of different Ehlers-Danlos syndromes which share these features but can be categorized into nine different types.
Danon disease
A genetic disorder characterized by heart problems, mental retardation and muscle weakness that affects males who usually die of cardiac arrhythmia or heart failure at around the age of 30. The disease is due to a deficiency of LAMP-2 (which stands for lysosome-associated membrane protein 2.)
Darier disease
Dark adaptometry
A type of electrophysiologic retinal testing done to measure the period of time which passes before the retina regains its maximal sensitivity to low amounts of light when going from conditions of bright light to darkness.
DASH diet
An eating plan designed to lower the blood pressure. DASH is an acronym for Dietary Approaches to Stop Hypertension. The DASH "combination diet" has been shown to decrease the blood pressure and so helps prevent and control high blood pressure. The DASH "combination diet" is rich in fruits, vegetables, and low fat dairy foods, and low in saturated and total fat. It also is low in cholesterol, high in dietary fiber, potassium, calcium, and magnesium, and moderately high in protein.
Date, expiration
The date for a drug estimated for its shelf life with proper storage in sealed containers away from harmful and variable factors like heat and humidity.
Daughter
1. A female offspring. 2. A female adopted child. 3. A product of radioactive decay. 4. A cell resulting from cell division.
Daw
Abbreviation meaning "dispense as written." One of a number of hallowed abbreviations of terms that have traditionally been used in prescriptions.
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This dictionary contains 19186 terms.
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