Reactive Oxygen Species Bridge the Gap between Chronic Inflammation and Tumor Development

Table 1

Cancers, associated chronic inflammatory diseases, and their risk factors.

Cancer	Inflammatory disease	Risk factors	Reference
Lung cancer	Chronic pneumonia	Smoking, asbestos, air pollution	[17, 18]
Liver cancer	Hepatitis	Infection, alcohol, chemicals	[19–21]
Gastric cancer	Chronic gastritis	Infection, alcohol, chemicals	[22, 23]
Oral cancer	Gingivitis and periodontitis	Betel-nut, smoking, infection	[24]
Kidney cancer	Chronic nephritis	Infection, chemicals, diabetes	[25]
Skin cancer	Chronic dermatitis	Allergy, radiation, UV	[26, 27]
Pancreatic cancer	Chronic pancreatitis	Infections, alcohol, DDT, diet	[28]
Prostate cancer	Chronic prostatitis	Obesity, alcohol, infection	[29, 30]
Ovarian cancer	Ovaritis	Fertility, chemicals, obesity	[31, 32]
Bladder cancer	Chronic cystitis	Infection, chemicals, diabetes	[33, 34]
Breast cancer	Chronic mastitis	Fertility, obesity, stress	[35, 36]
Cervical cancer	Chronic cervicitis	Infection, sexuality, hygiene	[37, 38]