Are nitrosamines the connecting link or one of the connecting links between the concepts of phototoxicity and photocarcinogenicity due to the intake of a contaminated medication according to the 2019/ 2023 FDA list?

Some new papers regarding the skin cancer development and progression after intake of potentially nitrosamine contaminated drugs!
Polimedication within the context of polimorbidity must be clarified as soon as possible!

The role of the Nitrosogenesis as cofactor for skin cancer development and progression has to be clarified…
From 2016 till today I have checked all data for skin cancer patients and over 96 % of them has taken potentially nitrosamine contaminated drugs!
Polymedication and contamination should be not overlooked because of the overlapping influence of. Different carcinogens / mutagens on the human genome and human DNA!
Form one side this could cause mutations/ or genotoxic action , from other side this could
Eliminate the role
Of p53 as genome regulator!
Reparations of the nitrosamine generated genetic instability fails and cancer develops!
We have no single data about that simultaneous influence of ndsris/ nitrosamines on human DNA!
We do not postulate that the nitrosamine contamination is the main problem, but that it is a substantial cofactor!

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