Rintasyöpä

Ylläoleva on jatkoa "Linssit pahasta ?" keskustelulle :

http://keskustelu.suomi24.fi/show.fcgi?category=2000000000000005&conference=3000000000000009&posting=22000000017329780

Tottakai ne käyrät jotain selittävät. Ne kertovat siitä, että ruokavaliossa tulee olla paljon kasvikunnan ruoka-aineita. (Mutta alemmassa kaaviossa, jossa oli käänteinen yhteys kasvikunnan proteiinin ja rintasyövän välillä, ei ollut saavutettu tilastollista merkitsevyyttä, joten tulosella ei ollut paljon merkitystä.)

Silti riippuu myös vähän siitä, mitä tutkimuksia poimii lähteeksi. Lue sinä puolestasi tämä alla oleva suora lainausta Appleby et al tutkimuksesta 'Mortality in British vegetarians'. Huomaa erityisesti viimeinen lause: "Vaikuttaa siis siltä, että kasvisruokavaliolla on vähän tai ei ollenkaan vaikutusta rintasyöpäkuolleisuuteen."

"Two causes of death gave rise to a significantly higher mortality among vegetarians in one study but not in the other – female breast cancer in the Health Food Shoppers Study, and mental and neurological diseases in the Oxford Vegetarian Study. The higher mortality from breast cancer among vegetarian women in the Health Food Shoppers Study has been noted previously, and it was thought that this might partly reflect different reproductive patterns between the diet groups. Data on parity were not available in this study, but in the Oxford Vegetarian Study vegetarian women had fewer live births on average than nonvegetarian women (mean 0.8 vs. 1.1), a difference which would be expected to increase their risk for breast cancer. Despite this, there was no excess in breast cancer mortality among the vegetarian women in the Oxford Vegetarian Study. In the collaborative analysis, breast cancer mortality
was significantly lower among vegetarians in the Adventist Health Study, with no significant difference overall.Therefore, it seems likely that a vegetarian diet per se has little or no effect on breast cancer mortality."

http://tinyurl.com/hpy2c

Jos rintasyövän ehkäisyyn haluaa etsiä ravitsemuksellisia keinoja, ne löytyvät lähinnä kypsentämättömien kasvisruoka-aineiden suunnalta. Niiden runsas syöminen ei edellytä kokonaan kasvissyöjäksi ryhtymistä.

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Cancer Epidemiol Biomarkers Prev. 2004 Sep;13(9):1422-35.

Raw versus cooked vegetables and cancer risk.

Link LB, Potter JD.

Cancer Epidemiology, Mailman School of Public Health, Columbia University, New York, New York 10032, USA. [email protected]

This review of the medical literature from 1994 to 2003 summarizes the relationship between raw and cooked vegetables and cancer risk and examines whether they may affect cancer risk differently. Twenty-eight studies examined the relationship between raw and cooked vegetables and risk for various cancers. Twenty-one studies assessed raw, but not cooked, vegetables and cancer risk. The majority of these assessed risk of oral, pharyngeal, laryngeal, esophageal, lung, gastric, and colorectal cancers. Most showed that vegetables, raw or cooked, were inversely related to these cancers. However, more consistent results were found for oral, pharyngeal, laryngeal, esophageal, and gastric cancers. Nine of the 11 studies of raw and cooked vegetables showed statistically significant inverse relationships of these cancers with raw vegetables, but only 4 with cooked vegetables. The few studies of breast, lung, and colorectal cancers also suggested an inverse relationship with both raw and cooked vegetables, but these results were less consistent. In the two studies of prostate cancer, there was no association with either raw or cooked vegetables. One of two bladder cancer studies found an inverse relationship with cooked, but not raw, vegetables. Possible mechanisms by which cooking affects the relationship between vegetables and cancer risk include changes in availability of some nutrients, destruction of digestive enzymes, and alteration of the structure and digestibility of food. Both raw and cooked vegetable consumption are inversely related to epithelial cancers, particularly those of the upper gastrointestinal tract, and possibly breast cancer; however, these relationships may be stronger for raw vegetables than cooked vegetables. PMID: 15342442

http://tinyurl.com/hzvpu