Abstract
The cancer of
urinary bladder is a very common cause of cancer related mortality all over
the world and approximately more than half patients suffering from bladder
cancer had been smokers. In addition to this, in such patients the cancer is
more intense, higher in grade and stage and does not respond well to
chemotherapy (Jin et al., 2017).
Cigarette smoking is a major risk factor for respiratory and extra
respiratory cancers in human body. While the oral and lung cancer result on
account of direct contact with the tobacco products, the urinary bladder
mucus membrane is exposed to a number of metabolites of tobacco products and
if this exposure is sustained for a longer duration, a deadly cancer results
(Omare et al., 2022).
Over 7000 chemical compounds have been found in tobacco smoke and more than 50
of these have been a labelled as carcinogenic. When tobacco burns, it
releases carbon monoxide, benzene, formaldehyde and polycyclic aromatic
hydrocarbons (PAH), hydrogen, cyanide, nitrosamine, etc. Recent studies have
shown that the bladder cancer patients who have been smoker have been found
to have altered metabolanomics of urinary bladder epithelium in variety of
ways. Firstly, some metabolites of tobacco create hyper methylation while
many types of nitrosamines and nicotine metabolites create genotoxicity
resulting in DNA damage, DNA adducts, mutations and ultimately carcinogenesis
(Jin et al., 2017; Fuller et al., 2028; Suzuki et al.,
2020).
Some years ago, an impression was created that if one uses electronic
cigarettes, the incidence of urinary bladder cancer can be lowered, but
recent studies have refuted that (Fuller et al., 2028). Although
tobacco industry is exploring to create less toxic types of tobacco, but the
danger of high grade, urinary bladder cancer is still looming large on
humanity (Stephen and Hatsukami, 2022) and therefore, one must respond to
this alarm. The temptation to adopt smoking is increasing in younger
population in developing countries and therefore not only a greater emphasis
on laboratory and clinical research is needed but also a wide spread campaign
on social media to warn people about the association of cigarette smoking and
bladder cancer are the need of hour.
Tobacco addiction in various forms is not confined to a particular group,
strata, or gender. Every year, ‘World No Tobacco Day” is celebrated on May
31st to draw attention to the adverse effects of tobacco consumption. Despite
being labeled as a potent carcinogen and the health risks associated with it,
people find it difficult to get out of tobacco addiction. Similarly, there
are numerous other toxic substances used daily that are directly linked to
health issues like allergies, infertility, birth defects, learning
disabilities, different types of cancers, and several more. Across the world,
extensive research is being conducted on Environmental Health Toxicology to
assess the adverse effects of various chemicals on human health.
Journal of Environmental Biology publishes research on different aspects of
Environmental Sciences, Biological Sciences and Toxicology, however, to
expand our horizon we now provide a forum for Medical and Pharmaceutical
researchers to showcase their research pertinent to Toxicants and their
impact on human and animal health. ournal of Environmental Biology is of
interest to toxicologist, pharmacologist, zoologist, botanist, ecologist,
environmental scientist, industry R&D organizations and others engaged in
environmental research and consultation.
We welcome new submissions (Original Research Articles, Research Reviews
& Case Studies) from researchers working in the areas of Environmental
Health Toxicology and also encourage scientists to curate Theme-based Special
Issues.
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