Cancer digestive system

There is no conclusive evidence that moderate, long-term use of cannabis causes lasting damage to physical or mental health. However, it is probable that frequent inhalation of cannabis smoke over a period of years will contribute towards bronchitis and other respiratory disorders and possible cancers of the lung and parts of the digestive system. Risks are greater if cannabis is smoked with tobacco. 

Abuse of laxatives can lead to a number of health problems, including imbalances in the levels of minerals (electrolytes) in the body, which can lead to dehydration, tremors, weakness, blurry vision, and kidney damage. Laxatives can also change the way nerve endings in the colon work, which can cause the laxative abuser to need more laxatives to have a bowel movement. Other problems with the digestive system that can result from laxative abuse include an increased risk of colon infection (resulting from a loss of the protective cover that lines the colon), rectal pain, gas, and severe constipation. Finally, laxative abuse may lead to both cancerous and noncancerous tumors in the bowel. 

Although nickel is not easily absorbed in the digestive system, it can cause toxic reactions and is a confirmed carcinogen in high concentration in the body. Nickel workers can receive severe skin rashes and lung cancer from exposure to nickel dust and vapors. 

Later it was observed that butyric acid is a naturally occurring dietary HD AC inhibitor. It is formed upon dietary fiber fermentation within our digestive system. Although butyrate does not normally reach high enough levels for cancer treatment, it has been proposed that daily consumption over an individual s lifetime may provide chemoprevenfive effects. ... 

A group of 427 hydrazine facility workers followed through 1992 showed no increased risk for lung cancer, cancer of the digestive system, other cancers, or mortality ftom other causes as compared with referent values, regardless of the degree of exposure. ... 

Both normal cells and tumor cells require blood circulation to provide the oxygen and the nourishment they need to survive. Bevacizumab (Avastin ) is used to treat advanced forms of cancer of the digestive system it is a reengineered mouse monoclonal antibody that binds to a growth factor receptor required for the development of blood circulation around a tumor. 

Chemotherapy—Cancer treatment using drugs that are cell poisons, somewhat more lethal to cancer cells than to normal cells. Because some normal cells are also damaged, such as those in hair follicles, digestive system lining, and bone marrow, side effects of chemotherapy include nausea, hair loss, and a weakened immune system. 

Tarter ME, Cooper RC, Freeman WR. 1983. A graphical analysis of the interrelationships among waterborne asbestos, digestive system cancer and population density. Environ Health Perspect 53 79-89. 

Limitations of the Bertazzi et al. (1978) and Tironi et al. (1996) studies include questionable grouping of digestive system cancers small number of cases short minimum exposure period lack of pattern or trend when data were analyzed by duration of exposure, latency, and year of first exposure and some cancer deaths in males with low potential for direct PCB exposure. 

Deaths from cancers of the digestive system were statistically significantly increased in the Bertazzi et al. (1987) study of capacitor workers summarized in Section 3.2.8.2.1. This category was not specific for the stomach and intestines as it included other parts of the digestive system, including the liver and biliary tract. Of six observed deaths from digestive system cancers, one was due to hepatocellular carcinoma and another from a cancer of the biliary tract. 

Hirohashi S, Ishak KG, Kojiro M, et al. Hepatocellular carcinoma. In Hamilton SR, Aaltonen LA, eds. Tumours of the Digestive System. Lyon, Erance International Agency for Research on Cancer (lARC) 2000 159-172. 

CHRONIC HEALTH RISKS pneumoconiosis (dust in the lungs) emphysema bronchitis lesions of the respiratory and digestive systems increase in cancer of the lungs, kidney, trachea, bronchus, and prostrate severe dermatitis skin lesions disfiguring pigmentation of the skin conjunctivitis other skin disorders such as folliculitis, furunculosis, erythema, photosensitivity, melanosis, and warts EPA Group A classifiable as a human carcinogen. 

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