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| This glossary contains: 19186 medical terms |
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Tissue culture
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Tissue culture See culture.
RELATED TERMS--------------------------------------
Culture
Growth of cells, tissues or embryos in vitro on an artificial nutrient medium in the laboratory.
SIMILAR TERMS--------------------------------------
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
Tissue Plasminogen Activator (t-PA)
A clot dissolving agent that is injected directly into a clogged artery to break up a blood clot. If used within 3 hours after the start of a stroke, brain damage may be avoided.
Tissue plasminogen activator (TPA)
A medication used to dissolve blood clots.
Tissue Typing
A test that evaluates the compatibility or closeness of tissue between the organ donor and recipient.
PREVIOUS AND NEXT TERMS--------------------------------------
Tubal ligation
Surgical sterilization procedure in which the fallopian tubes are sealed or cut to prevent sperm from reaching an egg.
Tube feeding
A way to provide food through a tube placed in the nose, the stomach, or the small intestine. A tube in the nose is called a nasogastric or nasoenteral tube. A tube that goes through the skin into the stomach is called a gastrostomy or percutaneous endoscopic gastrostomy (PEG). A tube into the small intestine is called a jejunostomy or percutaneous endoscopic jejunostomy (PEJ) tube. Also called enteral nutrition.
Tyrosine
The amino acid from which dopamine is made.
Telomerase
An enzyme composed of a catalytic protein component and an RNA template and that synthesizes the telomeric DNA at the ends of chromosomes. When active, telomerase can continually add to the length of the telomeres on the ends of chromosomes within a cell, thus conferring on that cell the ability to continue dividing past its normal lifespan.
Telomeres
"Caps" (made of repeated DNA sequences) found at the ends of chromosomes that protect the ends of the chromosomes from degradation. The telomeres on a chromosome shorten with each round of cell replication. Telomere shortening has been suggested to be a "clock" that regulates how many times an individual cell can divide (that is, when the telomeres of the chromosomes in a cell shorten past a particular point, the cell can no longer divide).
Tissue culture
Totipotent cells
Stem cells that have unlimited developmental capability. The totipotent cells of the very early embryo (an embryo prior to the blastocyst stage) have the capacity to differentiate into extraembryonic tissues, membranes, the embryo, and all postembryonic tissues and organs.
Transcription
Making an RNA copy from a gene or other DNA sequence. Transcription is the first step in gene expression.
Transformation
A genetic process resulting in a heritable alteration of the properties of a cell. In the case of cultured cells, transformation often refers to the acquisition of new properties, such as unlimited culture lifespan.
Translation
The process of forming a protein molecule from information contained in messenger RNA.
Trophectoderm
The outer layer of the developing blastocyst that will ultimately form the embryonic side of the placenta.
RELATED TERMS--------------------------------------
Culture
Growth of cells, tissues or embryos in vitro on an artificial nutrient medium in the laboratory.
SIMILAR TERMS--------------------------------------
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
Tissue Plasminogen Activator (t-PA)
A clot dissolving agent that is injected directly into a clogged artery to break up a blood clot. If used within 3 hours after the start of a stroke, brain damage may be avoided.
Tissue plasminogen activator (TPA)
A medication used to dissolve blood clots.
Tissue Typing
A test that evaluates the compatibility or closeness of tissue between the organ donor and recipient.
PREVIOUS AND NEXT TERMS--------------------------------------
Tubal ligation
Surgical sterilization procedure in which the fallopian tubes are sealed or cut to prevent sperm from reaching an egg.
Tube feeding
A way to provide food through a tube placed in the nose, the stomach, or the small intestine. A tube in the nose is called a nasogastric or nasoenteral tube. A tube that goes through the skin into the stomach is called a gastrostomy or percutaneous endoscopic gastrostomy (PEG). A tube into the small intestine is called a jejunostomy or percutaneous endoscopic jejunostomy (PEJ) tube. Also called enteral nutrition.
Tyrosine
The amino acid from which dopamine is made.
Telomerase
An enzyme composed of a catalytic protein component and an RNA template and that synthesizes the telomeric DNA at the ends of chromosomes. When active, telomerase can continually add to the length of the telomeres on the ends of chromosomes within a cell, thus conferring on that cell the ability to continue dividing past its normal lifespan.
Telomeres
"Caps" (made of repeated DNA sequences) found at the ends of chromosomes that protect the ends of the chromosomes from degradation. The telomeres on a chromosome shorten with each round of cell replication. Telomere shortening has been suggested to be a "clock" that regulates how many times an individual cell can divide (that is, when the telomeres of the chromosomes in a cell shorten past a particular point, the cell can no longer divide).
Tissue culture
Totipotent cells
Stem cells that have unlimited developmental capability. The totipotent cells of the very early embryo (an embryo prior to the blastocyst stage) have the capacity to differentiate into extraembryonic tissues, membranes, the embryo, and all postembryonic tissues and organs.
Transcription
Making an RNA copy from a gene or other DNA sequence. Transcription is the first step in gene expression.
Transformation
A genetic process resulting in a heritable alteration of the properties of a cell. In the case of cultured cells, transformation often refers to the acquisition of new properties, such as unlimited culture lifespan.
Translation
The process of forming a protein molecule from information contained in messenger RNA.
Trophectoderm
The outer layer of the developing blastocyst that will ultimately form the embryonic side of the placenta.
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This dictionary contains 19186 terms.
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