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wrote...
Educator
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Posts: 24759
A week ago
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This idea is the same for all cancer types. Except according to the article, the failure rate for pancreatic cancer is higher because pancreatic cells (as per the article) have high concentration of proteases in that tissue type. Proteases are enzymes that breakdown proteins; hence, it's likely digest the substance before it can be processed by the adaptive immune system cells.
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wrote...
6 days ago
https://medicalxpress.com/news/2010-10-scientists-cancer-purely-man-made.html

Thanks & Regards,
Prashant S Akerkar
wrote...
Staff Member
6 days ago

I can't seem to fully agree here because there's not one instance of proof that shows a normal cell becoming cancerous in the presence of a chemical. For example, we know that people who smoke cigarettes have a higher likelihood of developing lung disease, but they've never actually shown the toxins in the smoke making a cell "cancerous" in real-time. In fact, they can't even isolate a chemical within the smoke that'll cause it.

A statement like that is very easy to make, but very hard to prove clinically. You can get away with making statements like that by looking at historical database, but then you can say that the data is incomplete, so how's it valid? The article mentions:

Although this statistical construct is true, individuals in ancient Egypt and Greece did live long enough to develop such diseases as atherosclerosis, Paget's disease of bone, and osteoporosis, and, in modern populations, bone tumours primarily affect the young.

Which suggests that people back then didn't live long enough for cancer to be seen widely in the population. Also, genetics plays a major role in cancer too. Women who've inherited the mutated alleles of the brca1 gene are more likely to develop onset breast cancer than women who don't -- that has little to do with the environment.
- Master of Science in Biology
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wrote...
6 days ago
Cancer has many causative risk factors. Many of them are avoidable but human population is just not avoiding them in spite of in depth knowledge. Simple example is smoking,our life style and to add fast pace industrialisation increasing chemical carcinogens, food adulterations, etc.

I will put ,cancer is not man made disease as it has been there since ages but human population has knowingly or unknowingly added to continued occurrence.

Many factors are beyond our control.
wrote...
One day ago
Thanks.

https://www.cancer.org/treatment/treatments-and-side-effects/treatment-types/stem-cell-transplant.html

Stem cell transplants can help in curing certain types of cancer such as leukaemia ?

Thanks & Regards,
Prashant S Akerkar
wrote...
Educator
One day ago
Yes, specifically acute myeloid leukemia (AML), through bone marrow transplants (also known as blood stem cell transplants) . Healthy cells are obtained from a donor first (I remember it's extracted from the pelvic bone because it's spongy). Oftentimes the donor is a family member, though unrelated donor or umbilical cord blood (if stored from birth, for example) also works.

However, before the transplant, the recipient needs to get chemotherapy first - with or without radiation - to kill the unhealthy cells.
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