High doses of vitamin C can help to battle cancer
- Patients received 1,000 times more of vitamin C than they would through eating
- This amount actively hunts tumours when it enters the blood stream, experts say
- It worked by weakening the cancerous cells, leaving them prone to treatment
Stephen Matthews For Mailonline
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High doses of vitamin C could be a safe and potentially effective form of cancer treatment, scientists claim.
By injecting patients with it, they are able to get up to 1,000 times the amount than they would through eating.
This amount of the nutrient, found in oranges, kale and peppers, actively hunts tumours when it enters the blood stream, research suggests.
It worked by weakening the cancerous cells, leaving them vulnerable to the effects of radiation and chemotherapy.
Scientists claim that injecting patients with high doses of vitamin C, found in oranges, could be a safe and potentially effective form of cancer treatment
Despite evidence showing the opposite, the high doses produced only mild side effects of frequent bathroom trips and a dry mouth.
Vitamin C has been studied internationally as a potential treatment for cancer patients for more than four decades.
Despite being known to help boost the immune system, proven results for its effects on cancer have been relatively scarce.
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Previous research has even shown that it increases the risk of the disease by triggering a biological process that damages DNA.
Eleven brain cancer patients were given three infusions of vitamin C a week for two months for the study, which was published in the journal Cancer Cell.
This was followed by a further two per week for seven months while receiving standard radiotherapy and chemotherapy.
It worked by weakening the cancerous cells, leaving them vulnerable to the effects of radiation and chemotherapy
VITAMIN C 10 TIMES MORE EFFECTIVE THAN SOME DRUGS
Vitamin C could help stop cancer from spreading throughout the body, controversial research suggested earlier this month.
Found in high levels in oranges, kale and peppers, Salford University scientists discovered the nutrient starves tumours in laboratory tests.
Giving patients high doses is 10 times more effective than some drugs being trialled in the battle against cancer, the study claims.
By inhibiting the breakdown of glucose, the mitochondria – considered the ‘powerhouse’ of cells – are unable to gain vital energy it needs to thrive.
With standard treatment, patients with this form of the disease can expect to live for around 14 to 16 months.
However, the University of Iowa researchers found that high doses of vitamin C could extend their lifespan by up to six months.
Tests showed that iron in their tumours reacted with the vitamin to form highly reactive and destructive ‘free radical’ hydrogen peroxide molecules.
The free radicals were thought to cause selective DNA damage in cancerous, but not healthy, cells.
This in turn was expected to lead to enhanced cancer cell death as well as sensitisation to radiation and chemotherapy drugs.
Study author Dr Garry Buettner, from the University of Iowa, said: ‘This paper reveals a metabolic frailty in cancer cells that is based on their own production of oxidizing agents that allows us to utilise existing redox active compounds, like vitamin C, to sensitise cancer cells to radiation and chemotherapy.’
The safety study sets the stage for larger Phase II trials investigating whether high-dose vitamin C injections can extend the lifespan of cancer patients.
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