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✍Write a brief note on CANCER ....
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Answers
Answer:
Cancer is the name given to a collection of related diseases. In all types of cancer, some of the body's cells begin to divide without stopping and spread into surrounding tissues
Explanation:
⇒More Cancer Signs and Symptoms
Blood in the urine. ...
Hoarseness. ...
Persistent lumps or swollen glands. ...
Obvious change in a wart or a mole. ...
Indigestion or difficulty swallowing. ...
Unusual vaginal bleeding or discharge. ...
Unexpected weight loss, night sweats, or fever. ...
Continued itching in the anal or genital area.
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Human body contains millions of cells; it grows divides and dies in conventional manner. Sometimes the system goes wrong and uncontrolled no of cells grows, which leads to cancer. The cancer cells combines and form extra mass tissue known as tumour [1]. Cancer is a common disease which spreads throughout the blood stream in the human body [2]. Leukemia alters the blood cell and involve in its maturity and immaturity [3]. Some of the tumours does not spread throughout the body but grow uncontrollably like benign tumour [4]. Normal/healthy cell controls their growth and when they become unhealthy, destroys by themselves. In Asia high prevalence of chronic viruses like hepatitis B [5] and C, the Epstein Barr virus and human papillomaviruses (HPV) [5] increases the high risk of cancer. Mutations in p53 gene [6] leads to cancer as well as nutrition [7] play a vital role in mortality of cancer [8]. Exposure to aldehydes and formaldehyde associated with high risk of lymphoma cancer [9]. Hypoxia [10] is a solid tumour growth in cancer which is common and disturbs molecular pathways [11].
It is not possible to find out the specific cause for cancer. Cancer cells are modulated by culture condition and extracellular microenvironment condition [12]. But there are many risks which increase the cancer such as intake of tobacco, alcohol, poor diet, obesity, exposure of UV radiation, lack of physical activity and nearly 5 to percentage from hereditary can cause cancer [1]. Human genes like BRCA1 [13] and BRCA2 know as tumour suppressors, mutations in these gene leads to hereditary breast or ovarian cancer [14,15]. Latest research work of cancer was diagnosed with myeloma cancer, develops from plasma cells in bone marrow and after chemotherapy [16] treatment it was reduced and reminisced back within a year in spine [17]. Researcher studies show that the metastatic tumours have high levels of mRNA [18] which can be treated by chemotherapy [19]. In worldwide nearly 7.6 million deaths are seen due to lung, stomach, liver, breast cancer mainly [20]. Recently National Cancer Institute showed that the person who expose to solvent, grease and oils, those who work in textile and plastic industries have high risk of cancer [21].
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