IGF-I, the Key Factor in Cancer Growth

Note: I am largely off the internet at the moment. Guests have graciously offered blog posts that I believe will be of interest. Today’s post is by Robert Cohen, the NOTMilkMan. He heard my interview on the CBS NYC station’s Bob Salter Show and called me to connect. I love his sense of humor, though this post is scientific in nature.

By Robert Cohen

There are hundreds of millions of different proteins in nature, and only one hormone that is identical between any two species.  That powerful growth hormone is insulin-like growth factor, or IGF-I.  IGF-I survives digestion and has been identified as the key factor in breast cancer’s growth.

Women between the ages of 25 and 65 have been successfully targeted by the marketing representatives of the dairy industry’s milk promotion board. What the dairy industry neglects to advertise is the fact that cow’s milk contains a IGF- I.

If you believe that breast feeding “works” to protect lactoferrins and immunoglobulins from digestion (and benefit the nursing infant), you must also recognize that milk is a hormonal delivery system.  By drinking cow’s milk, one delivers IGF-I in a bioactive form to the body’s cells.

When IGF-I from cow’s milk alights upon an existing cancer…

“Human Insulin-like growth factor (IGF-I) and bovine IGF-I are identical. Both contain 70 amino acids in the identical sequence.”
– SCIENCE

“IGF-I is critically involved in the aberrant growth of human breast cancer cells.”
– Journal of the National Institute of Health

“Estrogen regulation of IGF-I in breast cancer cells would support the hypothesis that IGF-I has a regulatory function in breast cancer.”
– Molecular Cell Endocrinology

“IGF-I is a potent growth factor for cellular proliferation in the human breast carcinoma cell line.”
– Journal of Cellular Physiology

“Insulin-like growth factors are key factors for breast cancer growth.”
– Journal of Cellular Physiology

“IGF-I produces a 10-fold increase in RNA levels of cancer cells.  IGF-I appears to be a critical component in cellular proliferation.”
– Experimental Cellular Research

“IGF-I plays a major role in human breast cancer cell growth.”
European Journal of Cancer

“IGF-I has been identified as a key factor in breast cancer.”
The Lancet

“Serum IGF-I levels increased significantly in milk drinkers, an increase of about 10% above baseline but was unchanged in the control group.”
Journal of the American Dietetic Association

“IGF-1 accelerates the growth of breast cancer cells.”
SCIENCE

“Poor absorption of lactose may more than double the risk of ovarian cancer in women.”
– American Journal of Epidemiology

“Galactose is linked both to ovarian cancer and infertility…women who consume dairy products on a regular basis, have triple the risk of ovarian cancer than other women.”
– The Lancet

“Interest in the role of the IGF axis in growth control and carcinogenesis has recently been increased by the finding of elevated serum (IGF-I) levels in association with three of the most prevalent cancers in the United States: prostate cancer, colorectal cancer, and lung cancer. IGFs serve as endocrine, autocrine, and paracrine stimulators of mitogenesis, survival, and cellular transformation.”
– Journal of Cellular Physiology

“IGF-I reacts in a synergistic manner with estrogen, and plays a role in the growth and proliferation of ovarian cancer.”
– Journal of Clinical Endocrinology

For more, please visit http://notmilk.com/drharris.html

See also http://notmilk.com/drlarsen.html

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