Wednesday, October 11, 2006

This week the discussion is on the effect that Oral Contraception (AKA Birth Control) has on increasing the risks of certain cancers. Please note that instead of simply saying that Birth Control has been linked to cancer, the posters state that the following health care research organizations have found through medical research that there is a strong link. The most troubling types of cancer are Breast Cancer, Liver Cancer, and Cervical Cancer.

The US National Toxicology Program, Report on Carcinogens
The National Cancer Institute
The World Health Organization
The American Cancer Society
Department of Health and Human Services
Breast Cancer Center-EAMC
MaterCare International
Breast Cancer Prevention Institute
National Physicians Center for Family Resources
Ethics and Medics
The International Agency for Research on Cancer

Sources:

"Report on Carcinogens," U.S. National Toxicology Program, December 11, 2002.

The National Cancer Institute,

The World Health Organization

The International Agency for Research on Cancer

The Center for Disease Control and Prevention (and here )

The Carillon Institute

The Polycarp Institute

The Breast Cancer Prevention Institute

Talamini et al. (1996) Eur J Cancer 32A:303-10
The role of reproductive and menstrual factors in cancer of the breast before and after menopause

White et al. (1994) J Natl Cancer Inst 86:505-14
Breast cancer among young U.S. women in relation to oral contraceptive use.

Pike et al (1981) Br Journal of Cancer 43 Oral contraceptive use and early abortion as risk factors for breast cancer in young women

Miller K. Estrogen and DNA Damage: The Silent Source of Breast Cancer? Jrnl Natl Cancer Inst, Vol 95, No. 2, 100-102, January 15, 2003.

Russo IH, Calaf G, Russo J. Hormones and proliferative activity in breast tissue. In Stoll BA (ed). Approaches to Breast Cancer Prevention. Dordrecht, Kluwer Academic Publishers 1990;35-57.

Liehr JG. Is estradiol a genotoxic mutagenic carcinogen? Endocrine Rev 2000;21(1):40-54.

Henderson BE, et al. Cancer Research 48, 246-253, January 15, 1988.
Bernstein L, Ross R. Endogenous hormones and breast cancer risk. Epidemiol Rev 1993;15:48-62.

Cogliano, V. et al. Carcinogenity of combined oestrogen-progestagen contraceptives and menopausal treatment. IARC. V6, N8:552-3. 2005 .

Greer JB, Modugno F, Allen GO, Ness RB. Androgenic progestins in oral contraceptives and the risk of epithelial ovarian cancer. Obstetrics and Gynecology 2005; 105(4): 731–740.





If you have any questions or concerns, please feel free to comment, or to email us at projectplus2006@gmail.com

1 comment:

Anonymous said...

Studies have consistently shown that using OCs reduces the risk of ovarian cancer. In a 1992 analysis of 20 studies of OC use and ovarian cancer, researchers from Harvard Medical School found that the risk of ovarian cancer decreased with increasing duration of OC use. Results showed a 10 to 12 percent decrease in risk after 1 year of use, and approximately a 50 percent decrease after 5 years of use (5).

This from right here: http://www.cancer.gov/cancertopics/factsheet/Risk/oral-contraceptives

Scroll down to #3.

The use of OCs has been shown to significantly reduce the risk of endometrial cancer. This protective effect increases with the length of time OCs are used, and continues for many years after a woman stops using OCs.

Several studies have found that OCs increase the risk of liver cancer in populations usually considered low risk, such as white women in the United States and Europe who do not have liver disease. In these studies, women who used OCs for longer periods of time were found to be at increased risk for liver cancer. However, OCs did not increase the risk of liver cancer in Asian and African women, who are considered high risk for this disease. Researchers believe this is because other risk factors, such as hepatitis infection, outweigh the effect of OCs.

I realize that it looks very good to only use half of the information, because thats what propaganda is, but if you're actually trying to provoke thought and discussion, present all the information. People aren't that dumb.