Kashetti S
From many of the decades cancer became a second leading cause
of global death. The researches define cancer is an abnormal growth
of cells due to multiple changes in the gene expression which leads
to deregulation of balance of cell proliferation and cell death [1].
Cancer is not only caused by the genetic deregulation but also
some external factors such as physical carcinogens (ultraviolet and
ionizing radiation), chemical carcinogens (asbestos, components
of tobacco smoke, aflatoxin and arsenic), biological carcinogens
(viruses, bacteria, or parasites) and behavioral and dietary risks
(lack of physical activity, low intake of vegetables and fruits, high
body mass index, excess intake of alcohol). Cancer is a generic term
of diseases which can affect any part of the body which may or may
not be restricted to the specific body part. The cancer which is not
restricted to the specific part of the body is termed to be malignant [2].