ABSTRACT:
: Cancer is a multifactorial, heterogeneous and chronic disease. Basically, cancer itself is a group of diseases, because of its frequency, reciprocal influences-even minor influence may lead to a major impact. Epidemiological studies clearly indicate thatrisk for several types of cancer (including pancreas cancer, liver cancer, breast cancer, urinary tract (colorectal) cancer is too high for mortality and morbidity. Obesity, hyperglycemia, and increased oxidative stress may also contribute to increased cancer risk. Despite many decades of basic research and clinical research and trials of promising new therapies, new drugs, new treatments, cancer is the main cause of morbidity and mortality. In conclusion cancer is a complex disease which is gaining more of its popularity in humans and so, it needs more clinical attention and better designed treatments, studies and drugs.