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Polyethylenes definition: Synthetic thermoplastics that are tough, flexible, inert, and resistant to chemicals and electrical current. They are often used as biocompatible materials for prostheses and implants.
polyethylene definition: polymerized ethylene; a synthetic plastic material, forms of which have been used in reparative surgery.
Polytetrafluoroethylene definition: Homopolymer of tetrafluoroethylene. Nonflammable, tough, inert plastic tubing or sheeting; used to line vessels, insulate, protect or lubricate apparatus; also as filter, coating for surgical implants or as prosthetic material. Synonyms: Fluoroflex; Fluoroplast; Ftoroplast; Halon; Polyfene; PTFE; Tetron.
Polyvinyl Chloride definition: A polyvinyl resin used extensively in the manufacture of plastics, including medical devices, tubing, and other packaging. It is also used as a rubber substitute.
Pyran Copolymer definition: Copolymer of divinyl ether and maleic anhydride that acts as an immunostimulant with antineoplastic and anti-infective properties. It is used in combination with other antineoplastic agents.
Tetrachloroethylene definition: A chlorinated hydrocarbon used as an industrial solvent and cooling liquid in electrical transformers. It is a potential carcinogen.
Tetrachloroethylene definition: A colorless, volatile, nonflammable, liquid, chlorinated hydrocarbon with an ether-like odor that may emit toxic fumes of phosgene when exposed to sunlight or flames. Tetrachloroethylene is mainly used as a cleaning solvent in dry cleaning and textile processing and in the manufacture of fluorocarbons. Exposure to this substance irritates the upper respiratory tract and eyes and causes neurological effects as well as kidney and liver damage. Tetrachloroethylene is reasonably anticipated to be a human carcinogen and may be linked to an increased risk of developing skin, colon, lung, esophageal, and urogenital tract cancer as well as lymphosarcoma and leukemia. (NCI05)
Trichloroethylene definition: A highly volatile inhalation anesthetic used mainly in short surgical procedures where light anesthesia with good analgesia is required. It is also used as an industrial solvent. Prolonged exposure to high concentrations of the vapor can lead to cardiotoxicity and neurological impairment.
trichloroethylene definition: toxic liquid widely used as an industrial solvent, formerly used as an inhalation anesthetic.
Trichloroethylene definition: A synthetic, light sensitive, volatile, colorless, liquid that is miscible with many non-polar organic solvents. Trichloroethylene is used mainly as a degreaser for metal parts. Upon combustion, it produces irritants and toxic gases. Occupational exposure to trichloroethylene is associated with excess incidences of liver cancer, kidney cancer and non-Hodgkin's lymphoma. It is reasonably anticipated to be a human carcinogen. (NCI05)
Vinyl Chloride definition: A gas that has been used as an aerosol propellant and is the starting material for polyvinyl resins. Toxicity studies have shown various adverse effects, particularly the occurrence of liver neoplasms.
vinyl chloride definition: (VINE-uhl KLOR-ide) A substance used to make plastics. Exposure to vinyl chloride may increase the risk of developing liver, brain, and lung cancers; lymphoma; and leukemia.
Vinyl Chloride definition: A chlorinated hydrocarbon occurring as a colorless, highly flammable gas with a mild, sweet odor that may emit toxic fumes of carbon dioxide, carbon monoxide, hydrogen chloride and phosgene when heated to decomposition. Vinyl chloride is primarily used to make polyvinyl chloride to manufacture plastics. Exposure to this substance affects the central and peripheral nervous system and causes liver damage. Prolonged exposure to vinyl chloride can cause a set of symptoms that is characterized by Raynaud's phenomenon, joint and muscle pain and scleroderma-like skin changes. Vinyl chloride is a known human carcinogen and is associated with an increased risk of developing liver cancer, predominantly angiosarcoma of the liver, but is also linked to brain and lung cancer as well as cancer of the lymphatic and hematopoietic system. (NCI05)
Fosbretabulin definition: An inhibitor of microtubule polymerization derived from the South African willow bush which causes mitotic arrest and selectively targets and reduces or destroys existing blood vessels, causing decreased tumor blood supply.
Polyethylene definition: A vinyl polymer made from ethylene. It can be branched or linear. Branched or low-density polyethylene is tough and pliable but not to the same degree as linear polyethylene. Linear or high-density polyethylene has a greater hardness and tensile strength. Polyethylene is used in a variety of products, including implants and prostheses.
1,1-dichloro-2,2-bis(4-chlorophenyl)ethene dehalogenase activity definition: Catalysis of the reaction: 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene + H+ + 2 e- = Cl- + 1-chloro-2,2-bis(4-chlorophenyl)ethene. 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene is also known as DDE; 1-chloro-2,2-bis(4-chlorophenyl)ethene is also known as DDMU. [UM-BBD_enzymeID:e0312]
1,1-dichloro-2-(dihydroxy-4-chlorophenyl)-(4-chlorophenyl)ethene 1,2-dioxygenase activity definition: Catalysis of the reaction: 1,1-dichloro-2-(dihydroxy-4'-chorophenyl)-2-(4-chlorophenyl)ethene + O2 = 6-oxo-2-hydroxy-7-(4-chlorophenyl)-3,8,8-trichloroocta-2E,4E,7-trienoate. [UM-BBD_enzymeID:e0313]
detection of ethylene stimulus definition: The series of events in which an ethylene (ethene) stimulus is received by a cell and converted into a molecular signal. [GOC:sm]
ethylene mediated signaling pathway definition: A series of molecular signals mediated by ethylene (ethene). [GOC:jy]
induced systemic resistance, ethylene mediated signaling pathway definition: The series of molecular signals mediated by ethylene (ethene) involved in induced systemic resistance. [GOC:jy]
jasmonic acid and ethylene-dependent systemic resistance, ethylene mediated signaling pathway definition: The series of molecular signals mediated by ethylene (ethene) involved in jasmonic acid/ethylene dependent systemic resistance. [GOC:jy]
response to ethylene stimulus definition: A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an ethylene (ethene) stimulus. [GOC:jl]
jasmonic acid and ethylene-dependent systemic resistance, jasmonic acid mediated signaling pathway definition: The series of molecular signals mediated by jasmonic acid involved in jasmonic acid/ethylene (ethene) dependent systemic resistance. [GOC:jy]
jasmonic acid and ethylene-dependent systemic resistance definition: The jasmonic acid and ethylene (ethene) dependent process that confers broad spectrum systemic resistance to disease in response to wounding or a pathogen. [GOC:jy, PMID:10234273]
ethylene biosynthetic process definition: The chemical reactions and pathways resulting in the formation of ethylene (C2-H4, ethene), a simple hydrocarbon gas that can function in plants as a growth regulator. [ISBN:0387969845]
ethylene catabolic process definition: The chemical reactions and pathways resulting in the breakdown of ethylene (C2-H4, ethene), a simple hydrocarbon gas that can function in plants as a growth regulator. [GOC:jl, ISBN:0387969845]
ethylene metabolic process definition: The chemical reactions and pathways involving ethylene (C2-H4, ethene), a simple hydrocarbon gas that can function in plants as a growth regulator. [ISBN:0387969845]
regulation of ethylene mediated signaling pathway definition: Any process that modulates the frequency, rate or extent of ethylene (ethene) mediated signaling. [GOC:tb]
negative regulation of ethylene mediated signaling pathway definition: Any process that stops or prevents ethylene (ethene) mediated signaling. [GOC:tb]
ethylene binding definition: Interacting selectively with ethylene (C2-H4, ethene), a simple hydrocarbon gas that can function in plants as a growth regulator. [GOC:ai]