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| This glossary contains: 19186 medical terms |
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Gestation period
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Gestation periodThe period of development of the young from the time of conception until birth. For humans the full gestation period is normally 9 months.
RELATED TERMS--------------------------------------
Development
The process of growth and differentiation.
Conception
When a sperm and egg join to form a single cell, usually in the Fallopiantubes. After joining, the fertilized egg travels into the uterus, where itimplants in the lining on its way to growing into an embryo and then a fetus.
Gestation
The period of bearing a pregnancy from fertilization to delivery.
SIMILAR TERMS--------------------------------------
Gestagen
A synthetic type of progesterone.
Gestalt therapy
A psychotherapeutic concept that stresses understanding mental processes as holistic entities (gestalts) rather than as discrete steps. Gestalt therapy often uses group therapy techniques to help patients gain this type of insight.
Gestation
The period of bearing a pregnancy from fertilization to delivery.
Gestational age
The age of the fetus while in the uterus, counted from the first day of the last menstrual period.
Gestational diabetes
Form of diabetes that may develop during pregnancy in women who do not otherwise have diabetes.
Gestational diabetes mellitus
Diabetes (when blood sugar levels become too high) that develops duringpregnancy. Can be treated, and usually disappears after pregnancy.
Gestational Diabetes Mellitus (GDM)
A type of diabetes mellitus that can occur when a woman is pregnant. In the second half of the pregnancy, the woman may have glucose (sugar) in the blood at a higher than normal level. However, when the pregnancy ends, the blood glucose levels return to normal in about 95 percent of all cases.
PREVIOUS AND NEXT TERMS--------------------------------------
Germanium
A nonessential trace element that has caused nephrotoxicity (kidney injury) and death when used chronically by humans, even at recommended levels of use.
Germinoma
A type of germ cell tumor.
Germline mutation
A heritable change in the DNA that occurred in a germ cell (a cell destined to become an egg or in the sperm) or the zygote (the conceptus) at the single-cell stage. When transmitted to a child, a germline mutation is incorporated in every cell of their body. Germline mutations play a key role in genetic diseases. They play a role, too, in certain types of cancer as, for example, the eye tumor retinoblastoma and Wilms tumor, a childhood malignancy of the kidney. A germline mutation is in contrast to a somatic mutation which is acquired in a single body cell.
Gerstmann-Straussler-Scheinker syndrome
A rare familial form of progressive dementia inherited in an autosomal dominant manner due to a mutant prion gene on chromosome 20pter-p12. Abbreviated GSS. Degeneration of the nervous system usually starts in the fourth or fifth decade of life with slowly developing dysarthria (difficulty speaking) and cerebellar ataxia (wobbliness) and later the progressive dementia become evident. Death usually occurs within 10 years of the onset of symptoms.
Gestalt therapy
A psychotherapeutic concept that stresses understanding mental processes as holistic entities (gestalts) rather than as discrete steps. Gestalt therapy often uses group therapy techniques to help patients gain this type of insight.
Gestation period
GFAP
Glial fibrillary acidic protein. The degenerative brain condition called Alexander disease is caused by mutation in GFAP (glial fibrillary acidic protein). The GFAP gene provides instructions for making GFAP protein, a member of the intermediate filament family that provides support and strength to cells. Several molecules of GFAP protein bind together to form the main intermediate filament found in specialized brain cells called astrocytes. Astrocytes are star-shaped cells that support the functions of nerve cells in the brain and spinal cord (central nervous system). If the central nervous system is injured through trauma or disease, astrocytes react by rapidly producing more GFAP.
GFP
Green fluorescent protein. A protein that glows green under fluorescent light. Found naturally in the jellyfish Aequorea victoria, GFP fluoresces green when exposed to blue light. It has a sequence of three amino acids (serine-tyrosine-glycine) which is responsible for its fluorescence.
GI
1. In medicine, commonly used abbreviation for gastrointestinal, referring collectively to the stomach and the small and large intestine. 2. Outside of medicine, GI may stand for galvanized iron, general issue or government issue (as in GI Joe).
Giant cell tumor of bone
A tumor of bone characterized by massive destruction of the end (epiphysis) of a long bone. The site most commonly struck by this tumor is the knee -- the far end of the femur and the near end of the tibia. The tumor is often coated by new bony growth. It causes pain, restricts movement, and is usually cancerous. Treatment is by surgery, usually followed by chemotherapy.
Giant cell tumor, malignant
A type of bone tumor characterized by massive destruction of bone near the end (epiphysis) of a long bone. The site most commonly struck by this tumor is the knee -- the far end of the femur and the near end of the tibia. The tumor is often coated by new bony growth. It causes pain and restricts movement. Treatment is by surgery, usually followed by chemotherapy.
RELATED TERMS--------------------------------------
Development
The process of growth and differentiation.
Conception
When a sperm and egg join to form a single cell, usually in the Fallopiantubes. After joining, the fertilized egg travels into the uterus, where itimplants in the lining on its way to growing into an embryo and then a fetus.
Gestation
The period of bearing a pregnancy from fertilization to delivery.
SIMILAR TERMS--------------------------------------
Gestagen
A synthetic type of progesterone.
Gestalt therapy
A psychotherapeutic concept that stresses understanding mental processes as holistic entities (gestalts) rather than as discrete steps. Gestalt therapy often uses group therapy techniques to help patients gain this type of insight.
Gestation
The period of bearing a pregnancy from fertilization to delivery.
Gestational age
The age of the fetus while in the uterus, counted from the first day of the last menstrual period.
Gestational diabetes
Form of diabetes that may develop during pregnancy in women who do not otherwise have diabetes.
Gestational diabetes mellitus
Diabetes (when blood sugar levels become too high) that develops duringpregnancy. Can be treated, and usually disappears after pregnancy.
Gestational Diabetes Mellitus (GDM)
A type of diabetes mellitus that can occur when a woman is pregnant. In the second half of the pregnancy, the woman may have glucose (sugar) in the blood at a higher than normal level. However, when the pregnancy ends, the blood glucose levels return to normal in about 95 percent of all cases.
PREVIOUS AND NEXT TERMS--------------------------------------
Germanium
A nonessential trace element that has caused nephrotoxicity (kidney injury) and death when used chronically by humans, even at recommended levels of use.
Germinoma
A type of germ cell tumor.
Germline mutation
A heritable change in the DNA that occurred in a germ cell (a cell destined to become an egg or in the sperm) or the zygote (the conceptus) at the single-cell stage. When transmitted to a child, a germline mutation is incorporated in every cell of their body. Germline mutations play a key role in genetic diseases. They play a role, too, in certain types of cancer as, for example, the eye tumor retinoblastoma and Wilms tumor, a childhood malignancy of the kidney. A germline mutation is in contrast to a somatic mutation which is acquired in a single body cell.
Gerstmann-Straussler-Scheinker syndrome
A rare familial form of progressive dementia inherited in an autosomal dominant manner due to a mutant prion gene on chromosome 20pter-p12. Abbreviated GSS. Degeneration of the nervous system usually starts in the fourth or fifth decade of life with slowly developing dysarthria (difficulty speaking) and cerebellar ataxia (wobbliness) and later the progressive dementia become evident. Death usually occurs within 10 years of the onset of symptoms.
Gestalt therapy
A psychotherapeutic concept that stresses understanding mental processes as holistic entities (gestalts) rather than as discrete steps. Gestalt therapy often uses group therapy techniques to help patients gain this type of insight.
Gestation period
GFAP
Glial fibrillary acidic protein. The degenerative brain condition called Alexander disease is caused by mutation in GFAP (glial fibrillary acidic protein). The GFAP gene provides instructions for making GFAP protein, a member of the intermediate filament family that provides support and strength to cells. Several molecules of GFAP protein bind together to form the main intermediate filament found in specialized brain cells called astrocytes. Astrocytes are star-shaped cells that support the functions of nerve cells in the brain and spinal cord (central nervous system). If the central nervous system is injured through trauma or disease, astrocytes react by rapidly producing more GFAP.
GFP
Green fluorescent protein. A protein that glows green under fluorescent light. Found naturally in the jellyfish Aequorea victoria, GFP fluoresces green when exposed to blue light. It has a sequence of three amino acids (serine-tyrosine-glycine) which is responsible for its fluorescence.
GI
1. In medicine, commonly used abbreviation for gastrointestinal, referring collectively to the stomach and the small and large intestine. 2. Outside of medicine, GI may stand for galvanized iron, general issue or government issue (as in GI Joe).
Giant cell tumor of bone
A tumor of bone characterized by massive destruction of the end (epiphysis) of a long bone. The site most commonly struck by this tumor is the knee -- the far end of the femur and the near end of the tibia. The tumor is often coated by new bony growth. It causes pain, restricts movement, and is usually cancerous. Treatment is by surgery, usually followed by chemotherapy.
Giant cell tumor, malignant
A type of bone tumor characterized by massive destruction of bone near the end (epiphysis) of a long bone. The site most commonly struck by this tumor is the knee -- the far end of the femur and the near end of the tibia. The tumor is often coated by new bony growth. It causes pain and restricts movement. Treatment is by surgery, usually followed by chemotherapy.
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This dictionary contains 19186 terms.
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