Genetic etiology of cancers

Earlier this month- about a week ago- in my other blog <docSamBlog>  I published a post citing ( using the argumentative scientific approach )  that oncologist might wish to use the argumentative  approach that with the data suggestion that 20% of tutors are genetically determined and that for the other 80% which have an environmental cause , and further that because there is a lag period of requiring up to 20 years or more before the precancerous lesion becomes an established cancer, and further it could be argued that in the first quarter of life  ( 1-24 Yeatrs these predetermined factors have not had sufficient time for these precancerous lesions to become established, that  a higher if not indeed most of the cancers of this age period  may ineed be of genetic origin

Today I read a report (or was it on the TV) detailed the history of this tumor by a neurological surgeon from my alma mater. Apparently after a vigorous chemotherapy protocol the lesion resolved only to appear in another part of the brain which I believed again went into remission . I would like to comment that what we are seeing is the epigenetic effect of chemotherapeutic effect on cancer genes.. Also that the approach for treating the majority- probably 80% or more-whose etiology aare caused by environmental factors- like smoking, food (nutrition), radiation etc. Epigenesis may explain the often observed phenomena of miracle cured in children.-

Author: Semeon Hrushovetz

Retired Physician, Researcher, Lifelong Learner. Promoting healthy aging and life extension. Visit or check my previous sites: blog: website:

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