Carcinogen
* Many carcinogens act directly on DNA causing base damage and subsequent mutation
  - are capable of causing gene mutations
* Most carcinogen causes breast cancer
* Most carcinogen induces cell damage
* Most carcinogens are teratogens
  - metabolize to electrophiles that react with DNA causing alkylation
* Some carcinogen causes transformation.
* Some carcinogen finds in cigarette smoke
  - cigarettes
  - includes solvent
* Some carcinogen is excreted by kidneys
  - produced by fungi
  - promotes growth
* Some carcinogens are used to produce cancer in research models
  - can cause cancer in the children of women exposed during pregnancy.
  * ' are substances that cause cancer. Sometimes radiation or radionuclide are also considered carcinogens. A common example of a carcinogen is tobacco smoke. Carcinogens come from both natural and man-made substances
* are agents capable of initiating cancer
  - carcinogenesis
* are agents that are known to cause cancer
  - almost always mutagens
* are chemicals that damage body cells in ways that can ultimately lead to cancer
  - have been proven to cause cancer
* are chemicals that increase cancer risk
  - the risk of cancers
  - everywhere
  - in tobacco smoke and cause cancer of the lungs, mouth, gullet and bladder
  - mutagens that affect the activity of oncogenes and tumor-suppressor genes
* are substances known to produce or promote the development of cancer
  - that promote the development of cancerous cells
  - which can start the process of cancer
  - the cause of cancer
* begin to damage tissues, etc.
* enter our bodies through the air, food, soil and water.
* is chemical substances.
* remain more active when there vitamin A deficiency.
* waft through the air.

### carcinogen:

Chemical carcinogen
* All chemical carcinogens can form directly or are metabolized to reactive electrophilic forms.
* are substances which induce cancer in humans and animals.
* can act through a variety of different modes of action.

### carcinogen:

Urethane
* All urethanes are expensive but they are strong and offer exceptional resistance to wear and oils.
* are available in a wide variety of characteristics including hardness and impact strength
  - esters of carbamic acid, a half amide of carbonic acid
  - rigid and less prone to flexing
  - very difficult to repair
  - virtually immune from attack by ozone and oxygen
* chemical substance that forms naturally during the fermentation process.
* comes in a wet chemical form that can be injected into walls or cavities with a gun.
* containing acetone, however, make top coating air-dry finishes more difficult.
* crosslink and undergo chain extension to produce a wide variety of compounds.
* durable, waterproof coating that allows for radio-frequency seam welding.
* has better pin action than polyester with a moderate amount of hook potential
  - good tear resistance, excellent adhesion and remains flexible at low temperatures
* is also much more expensive than fiberglass
  - clearly genotoxic in vitro and in vivo
  - good if the density is right
  - just thicker than the sponge
  - made by foaming urethane and methyl butane
  - normally a whitish clear color, when it's poured with no other agents
  - part of sake
  - present in alcoholic beverages
  - used to mold the shape of each dinosaur
* offer a step up in durability and scuff resistance.
* popular material for constructing the bladders.
* produced are an intermediate product useful in other processes.
* produces cyanide gas as it exotherms.
* provides a harder shell and less friction than reactives.
* requires mineral spirits for thinning and cleaning up.
* urethane modified acrylic elastomeric coating for metal roofs.
* weather better, since epoxies chalk with exposure to sunlight.

### carcinogens:

Anticancer agent
* All anticancer agents treat cancer cells in the same manner as they treat all normal cells.
* Many anticancer agents are carcinogens.