A meta-analysis published in the journal PLOS Medicine has analysed the time to diagnosis and treatment of various types of cancer in rich and poor countries. On average, the processes are 1.5 to 4 times slower in disadvantaged countries.
A study published in the British Journal of Sports Medicine has found a link between the practice of physical exercise and a lower risk of developing breast cancer in any of its types. The authors claim that there is very strong evidence that the association is causal.
A study published in the BMJ has found a link between overall ultra-processed food consumption and an increased risk of colorectal cancer in men. The association has not been seen in women.
In the United States, the human papillomavirus vaccine began to be recommended in 2006 for girls aged 9-26 years. A study published in the journal JAMA Health Forum concludes that the campaign significantly reduced the risk of HPV infection in vaccinated women. In addition, herd immunity reduced the likelihood of infection in unvaccinated women.
A study published in The Lancet finds that 44.4% of cancer deaths worldwide are due to preventable risk factors, especially smoking, alcohol consumption and being overweight.
Glioblastoma is an aggressive type of cancer that arises in the brain or spinal cord. Researchers have identified a new drug that exploits DNA repair defects to selectively target tumours that are resistant to chemotherapy treatment with temozolomide. The research is published in Science.
The Ministry of Health has announced the purchase of 10 proton therapy equipment for public hospitals of the National Health System in seven autonomous communities. They will be used to treat tumours, especially in paediatric patients. The cost of the equipment will be financed by the Amancio Ortega Foundation.
The journal JAMA today publishes several articles, along with an editorial, in which the US Preventive Services Task Force recommends against the use of vitamin supplements to prevent cancers and cardiovascular disease.
A study of nearly half a million adults examines the association between total and specific fish intake and melanoma risk.
"The level of alcohol consumption that does not harm health is zero," says a review of dozens of studies conducted in recent years on the effect of light drinking. The 20 or so authors of the paper, and other experts, insist that "alcohol is carcinogenic from the first drink". In their view, this message should be conveyed more clearly to the public.