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What does cause the development of prostate cancer in men?

Prostate cancer is the second only to the lung tumor in men worldwide, with about 900 000 new cases diagnosed annually and more than 250 000 deaths a year.

What does cause the development of prostate cancer?

Genetic errors in the genes regulating cell growth and DNA repair play a principal role in the development of prostate cancer.
The genes BRCA1 and BRCA2 are the DNA repair genes and exist in the genome of man as well as a woman. Normally these genes repair errors or mutations occurring in the structure of the DNA molecule. However, when they cannot operate properly due to the modifications in their own structure, the cell looks like a shop full of working machines but without a mechanic. With time more and more machines get out of the order. BRCA functional loss results in genomic instability and the accumulation of genetic errors in cells. So we get these genes from our parents, regardless they are normal or mutated.

Both of the genes are linked with the most aggressive forms of prostate cancer affecting predominantly younger people under 55. The risk of prostate cancer increases up to 3.8-fold for men with BRCA1 mutations and up to 8.6-fold for men who carry BRCA2 mutations.

Furthermore, men who carry a BRCA mutation may be at risk for other cancers, such as male breast cancer, pancreatic cancer, and melanoma. Women who carry a BRCA mutation are also at risk for breast and ovarian cancers. Therefore, if you have close family members who died or survived prostate, breast or ovarian cancer, it is highly recommended to do a screening test for the presence of mutated BRCA1/2 genes in the genome for cancer risk assessment.

Along with BRCA mutations, 16 other DNA repair genes have been reported recently to be involved in the accumulation of cell aberrations.
Some modifications in the genes regulating cell growth or the mutations boosting cell responsiveness to testosterone have been suspected to be in charge for the development of prostate cancer, although there is not yet sufficient scientific evidence for the statement.

What are the main risk factors for prostate cancer?

While the direct causes of prostate cancer remain mostly obscure, much progress has been made in exposing of risk factors of prostate cancer lately. The risk factors listed below affect the complex machinery of the genes operation to a varying degree. Although they may increase the odds of getting a disease, nonе of them necessarily cause prostate cancer.

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The main risk factors of prostate cancer are those, supposed to determine a genetic structure of an individual: family history, age, and country/ethnicity.

The countries of North America, Europe, and Australia have the highest rates of prostate cancer, while countries in South-Central Asia have the lowest incidence. African Americans get prostate cancer much more often than white Americans or Latinos. When men from Asian countries emigrate to the United States or Western Europe, they become just as likely to develop prostate cancer as Western men. It would be too simplistic to assume that these ethnic or/and geographic differences in the sensitivity to the prostate cancer conditioned by the dietary differences only. Each nation, occupying a particular territory, with its centuries-old traditions in the farming of plant and animal food, lifestyle, has its gene pool stabilized at a certain level. And when someone migrates from one country to another, it changes not only his diet but all the other influencing factors as well.

Although attempts to identify dominant genes in charge for the development of prostate cancer have failed, there is strong evidence of the familial manifestation of the disease in some men. The risk of the disease in first-degree relatives is about twice that in the general population, raising to fourfold and more if the case is diagnosed under age 60. Probably earlier prostate cancer is more likely to be provoked by inherited factors. Higher risks have been found in people with two or more affected relatives.

The older man gets, the more chances he has to develop prostate cancer. The disease is rare in men younger 50 but increases steeply afterward: one in about 15 men in their 60s will be diagnosed for prostate cancer. Probably, this phenomenon may be explained by the accumulation of harmful mutations in the structure of a man’s genome with age. It seems that the age of 50 is a turning point in the life of a man; his testosterone level drops rapidly, his prostate enlarges, the urogenital system gets vulnerable to all kinds of invaders and stresses, and finally, the risk of getting prostate cancer increases tremendously.

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To summerise, the listed above data supports the idea of a robust association of prostate cancer to the genetic component. Moreover, it has been reported about 50 sites in the human genome so far, linked to prostate cancer sensitivity that may increase in disease risk. Nevertheless, the defense mechanisms of our body prevent malignant degeneration until a sufficient amount of DNA damage accumulates in the prostate cells. This process lasts for decades and reaches a dangerous point by the age of 55-60.

So, now it is getting clear, that any factor that can trigger the accumulation of the DNA mutations in the prostate cells, is a risk factor. When we evaluate any potential risk factor for the development of prostate cancer, no matter is it food, alcohol drinking, cigarette smoking, sexually transmitted diseases, prostatitis, lifestyle, etc. we should first test its carcinogenic/mutagenic potential for the prostate cells.

It sounds nonsense when we are trying to blame red meat or associated with it raise of testosterone in triggering the malignant overgrowth of prostate tissue. When testosterone is flooding the blood of young men in their 20-30s, no prostate cancer threatens them. However, by 50-60s, when the testosterone level has been declining pretty much, we hear warnings about its possible harmful effects on the prostate.

Recently, two research groups, from Harvard, and Montreal have found a strong connection between ejaculation frequency and risk of getting prostate cancer. In Harvard’s report, men who have had 21 or more ejaculations a month had 20 % lower prostate cancer risk compared to those who have had only 6-7 times. In the Canadian report, a chance of getting prostate cancer is by 19% lower for those who have 20 or more partners than those in monogamous relationships.

I guess those, who have rare sex have lower testosterone too. Do not these results say that testosterone, on the contrary, protects our prostate and keeps it healthy?

Based on this, I suppose testosterone can stimulate cell growth no matter normal or tumor, but cannot trigger malignancy; only if some cells in the prostate have lost growth control, testosterone may accelerate cancer growth.

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How red meat can cause prostate cancer?

And again, can red meat be a culprit in the prostate cancer? Unfortunately, I should answer “yes,” but there is nothing to do with the red meat itself, rather the way it comes in and out of our body. I mean, the type and amount of chemicals/pesticides and added estrogens we eat with the red meat, the way we cook and process it and finally, how easily it has been digested and eliminated from our body. The majority of the US population shows measurable levels of various pesticides in their urine, as reports the National Health and Nutrition Survey. And consuming the food treated with pesticides is the principal route of man poisoning. For instance, Chlordecone, one of many other insecticides, that was used widely for more than 30 years, has been reported to increase the risk of prostate cancer. This substance also binds the estrogen receptor which is in charge of the adverse effects of estrogen on the prostate, such as inflammation, aberrant proliferation, and malignancy.

Read more about how meat can harm your prostate and not only, in the next post.

Conclusion

An increasing amount of scientific evidence suggests a genetic basis for the development of prostate cancer. Therefore, the easier a particular factor triggers genetic aberrations in specific genes of the prostate, the more likely the factor is capable of developing cancer. The healthiest food, no matter meat or vegetables, may cause prostate cancer if it is seasoned with pesticides and hormones. Neither chemical no food companies have been following up the possible adverse effects of their “innovations” and “additives” for 30-50 years. If you are concerned about the health of your prostate, be aware of what you eat and make the right choice.

Literatura

Elena Castro and Rosalind Eeles. The role of BRCA1 and BRCA2 in prostate cancer. Asian J Androl. 2012 May; 14(3): 409–414.

Multigner L, Ndong JR, Giusti A, Romana M, Delacroix-Maillard H, Cordier S, Jegou B, Thome JP, Blanchet P. Chlorodecone exposure and risk of prostate cancer. J Clin Oncol. 2010;28:3457–3462.

6 thoughts to “What does cause the development of prostate cancer in men?”

  1. An interesting look at prostate cancer. So often some group does some research about a particular food. Often they have a bias before they begin, the media runs with it and muddies the whole topic, with antidotes, other “experts”, and at the end of it all, you are really no wiser than you were before.

    1. I thank YOU, Michael, for honoring me with your time by reading my post and commenting – thank you!
      I totally concur your phrase “they have a bias before they begin” or, as one my friend said “opinion” based science. Nowadays pharmaceutical, chemical, and food industries make a difference in science, sponsoring and managing researches how it works for them.
      As to my position, I believe that any natural food is beneficial for our health unless it is not loaded with preservatives, pesticides, hormones and other synthetic chemicals.

      Wishing you the best health

      Makhsud

  2. Thanks for the research and knowledge you have shared here.
    I have been in the meat industry for the past 30 years and have seen the different types of meats available. Now I try to buy natural or organic meat whenever possible.

    Live the Life you Love

    1. Thank you, Rolland, for the comment. Unfortunately, labels on the meat packages say nothing about what kind and how much pesticides and hormones they contain. Not everybody knows what really they buy together with meat. The post is just a small voice to raise awareness of men caring about their health.

      Wishing you the best health

      Makhsud

  3. This is the second post I have read on this site and I am grateful to have expanded knowledge. I have to say, it is disheartening to me that foods are even allowed to be sold for consumption that have been in contact with hormones and pesticides. It is as though the practice of this demonstrates complete lack of respect and integrity for the magnificence that is the human body and a very disempowering practice for the wealth of humanity’s wellbeing. I appreciate that you are empowering people through knowledge and encourage making conscious choices as to what the body is consuming.
    Reading the information about the suggested protective mechanism that testosterone yields in decreasing the percentage of developing prostate cancer is aligned with my beliefs that we are dynamic creatures, us humans and the act of sexual exchange and expression are intrinsic to our experience. The act of ejaculating is one of the most esteemed pleasures of the human body and it represents power in that it yields the gift of life and can propagate our species. It comes as no surprise that a man’s health proves to yield more optimal outcomes with the healthy investment of nurturing and exercising this aspect of our overall health.

    Thank you for the informative knowledge!

    -Bex

    1. Thank you, Bex, for stopping by and commenting. I’m always pleased to meet people sharing my views on the human’s body. It is really time to switch from neglecting our body and its’ needs to loving it and nourishing it the best food we have. It’s the only divine precious we have. And only then our body will delight us with health, the fullness of life and happiness.

      Have a great health

      Max

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