A study conducted by Italian scientists, which has been published in 'Neurology', has revealed that there is an inverse association between cancer and Alzheimer's disease, and that people with cancer are less likely to develop Alzheimer's, and vice versa.

The study is based on the evolution, during five years, of more than 204,468 people over 60 years, in which the diagnoses of both diseases were evaluated. The researchers discovered that there were 21,400 cases of cancer and 2,800 cases of Alzheimer's, but that only 161 patients suffered both diseases.

If one considers the frequency with which these pathologies occur in the general population, it would have been normal for those who were diagnosed with Alzheimer's first 281 cases of cancer, while in the case of those who were diagnosed before of cancer, 246 should have developed Alzheimer's.

According to the study, people with Alzheimer's had a 50% lower risk of cancer, while the chances of developing Alzheimer's decreased by 35% in cancer patients.

According to these data, people with Alzheimer's disease had a 50% lower risk of cancer, while the chances of developing this neurodegenerative disease was reduced by 35% in cancer patients.

The director of the research, Massimo Músico, of the National Research Council of Italy in Milan, explained that in the cellular aging Many different genes are involved, and some whose function is to repair tissues and which can cause a beneficial cell proliferation while we are young, could nevertheless facilitate the appearance of cancer in the elderly. Other genes cause the opposite effect, cell death, and are linked to neurodegenerative diseases such as Alzheimer's, so, according to this expert, both pathologies could be considered antagonistic concepts, since one is linked to cell proliferation - cancer - and , the other -alzhéimer-, to the death of the cells.

Dr. Dale Bredesen on Preventing and Reversing Alzheimer's Disease (November 2019).