गुरुवार, 29 जुलाई 2010

Vit C can help block growth of cancer cells, shows research New Zealand researchers have established that vitamin C can help to block the growth of cancer cells.

A team from Otago University at Christchurch, in a paper published in leading international journal Cancer Research, have shown that vitamin C has a role in controlling tumour growth. They say their study of tumorous and normal tissue samples from women with cancer of the uterine lining provides the first direct evidence of a link between vitamin C and a protein called HIF-1.

HIF (hypoxia inducible factor)-1 is considered a key protein in tumour survival. High activity of it promotes tumour growth and resistance to chemotherapy and radiotherapy and is linked with a poor prognosis for patients.

The Christchurch study, led by Associate Professor Margreet Vissers, of the university’s Free Radical Research Group, found that high-grade tumours had around 40 per cent less vitamin C than matched, adjacent, normal tissue.

The researchers say their study suggests that restoring the vitamin C levels in tumours would limit factors that promote tumour growth. 

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