Dr. Abram Hoffer, MD, FRCP (C) and Dr. Harold D. Foster, PhD See book keywords and concepts | The great majority of dermatologists have accepted that exposure to the sun is the major cause of melanoma. There are exceptions to this generalization. Dr Bernard Ackerman, after reviewing the literature and drawing on his own experience in dermatology, concluded that the connection is both inconclusive and inconsistent.^0 To illustrate, melanoma usually develops in skin that has not been exposed. Ackerman also questions the use of sun screens, and points out that sunburns do not necessarily lead to melanoma. | | This increase in cancer in the skin of niacin-deficient individuals raises the issue of the link, if any, between exposure to the sun and the development of melanoma. The great majority of dermatologists have accepted that exposure to the sun is the major cause of melanoma. There are exceptions to this generalization. Dr Bernard Ackerman, after reviewing the literature and drawing on his own experience in dermatology, concluded that the connection is both inconclusive and inconsistent.^0 To illustrate, melanoma usually develops in skin that has not been exposed. | James Dowd and Diane Stafford See book keywords and concepts | Of more than 1 million new cases of skin cancer a year, only 112,000 are melanoma. Of those 112,000, about half are invasive. Seventy-three percent of skin-cancer deaths are attributed to malignant melanoma.
UV light is one of about sixty carcinogens that the World Health Organization recognizes. Evidence that links UV exposure to basal cell and squamous cell cancer of the skin is plentiful and indisputable.
But melanoma has a more chameleon image. | Thomson Healthcare, Inc. See book keywords and concepts | Effects of a standardized mistletoe preparation on metastatic B16 melanoma colonization in murine lungs. Drug Res; 48:497-502. 1998
Woynarowski J & Konopa J. Interaction between DNA and viscotoxins. Hoppe-Seyler's Z Physiol Chem; 361(10): 1535-1545. 1980
Zarkovic N, Kalisnik T, Loncaric I et al: Comparison of the effects of Viscum album lectin ML-1 and fresh plant extract (Isorel) on cell growth in vitro and tumorigenicity of melanoma B16F10. Cancer Biother Radiopharmacol; 13:121 -131. | Bottom Line Health See book keywords and concepts | | Melanoma International Foundation
250 Mapleflower Rd. Glenmoore, PA 19343 610-942-3432 www.melanomainternational.org
¦ National Cancer Institute
Building 31, Room 11A16 9000 Rockville Pike Bethesda, MD 20892 800-4-CANCER (422-6237) TTY: 800-332-8615 www. cancer.gov
¦ National Capital Poison Center
3201 New Mexico Ave., Suite 310 Washington, DC 20016 202-362-3867
Emergency Line: 800-222-1222 www.poison.org
¦ National Headache Foundation
820 N. Orleans, Suite 217 Chicago, IL 60610 888-NHF-5552 (643-5552) www. | Russell L. Blaylock, M.D. See book keywords and concepts | One study found that there were two types of melanoma cells, one that was sensitive to destruction and growth suppression by DHA and another that was resistant.612
Earlier studies have demonstrated that the flavonoid quercetin (found in high concentrations in teas, onions, shallots, apples, and cranberries) inhibits the growth and spread of melanomas and can induce apoptosis as well. You can mix quercetin powder from a capsule into the oil mix I discussed before, since quercetin is oil soluble. This combination is active against both types of melanoma cells. | | Other Cancers
Tests using DHA against melanoma cells in culture have shown promising results against this nasty cancer. One study found that there were two types of melanoma cells, one that was sensitive to destruction and growth suppression by DHA and another that was resistant.612
Earlier studies have demonstrated that the flavonoid quercetin (found in high concentrations in teas, onions, shallots, apples, and cranberries) inhibits the growth and spread of melanomas and can induce apoptosis as well. | David W. Grotto, RD, LDN See book keywords and concepts | MELANOMA: Eighty-two percent of lung tumors resulting from metastatic melanoma were reduced in mice who were administered a component of wasabi.
BREAST CANCER: A human cell line study showed that a relatively small concentration of wasabi inhibited up to 50 percent of breast cancer cells.
CANCER: Both wasabi and horseradish inhibited the growth of colon, lung, and stomach cancer cells in a human cell study.
ORAL HEALTH: Wasabi has even been known to prevent tooth decay.
BACTERIA KILLER: Horseradish and wasabi root have components including isothiocyanates that are effective in killing H. | James Dowd and Diane Stafford See book keywords and concepts | A higher ratio of UVA to UVB than the sun may be important in increasing the risk of melanoma. Overexposure to any of these wavelengths isn't healthy.
The benefits are that tanning can normalize vitamin D levels, and normal vitamin D levels reduce your risk of all cancers, including melanoma. Judicious use of artificial UV light is used to treat some skin diseases, and it can help prevent sunburns. The science is still out on whether the benefits outweigh the risks, and we really don't know what balance of UV spectrums is safest. | Andreas Moritz See book keywords and concepts | Ackerman, who in 1999 founded the world's largest center for dermatopathology training, there is no proof whatsoever that sun exposure causes melanoma. To substantiate his arguments, he cites a recently published article in the Archives of Dermatology concluding that no evidence exists supporting the notion that sunscreen prevents melanoma, a claim the mega-million dollar sunscreen industry and those in the medical mainstream have falsely made for decades.
Dr. | Bottom Line Health See book keywords and concepts | | But our study shows that there are marked genetic differences in melanoma cases. These are distinct diseases," says Bastian.
Dr. Paul Meltzer, head of the section of molecular genetics in the cancer genetics branch at the National Human Genome Research Institute, says this study "may have significant clinical implications in the long run, [and is] laying the groundwork for a better individualized and personalized cancer therapy. I'm somewhat optimistic now that we may turn the corner on melanoma therapy. | Dr. Abram Hoffer, MD, FRCP (C) and Dr. Harold D. Foster, PhD See book keywords and concepts | To illustrate, melanoma usually develops in skin that has not been exposed. Ackerman also questions the use of sun screens, and points out that sunburns do not necessarily lead to melanoma. He does advise avoiding excessive exposure to sun, however, to decrease aging of the skin.
Unfortunately, the desire to avoid the sun to prevent the development of skin cancer is leading many people to become vitamin D-3 deficient.
Rickets, a vitamin D-3 deficiency disease is, for example, reappearing in Canada and seems to be averaging about 40 cases a year. | Joan Liebmann-Smith, Ph. D., and Jacqueline Nardi Egan See book keywords and concepts | VERTICAL DARK BANDS (Melanonychia Striata) significant fact
Half of the cases of melanoma in dark-skinned people occur as dark bands that run the length of the nail.
MISSHAPEN NAILS
Nails That Curve Downward
Nails with an exaggerated downward curve instead of just a slight slope—medically known as clubbed nails—aren't just unsightly. The thickening of the nail bed, the soft tissue under the hard nail, causes the bulge. Unfortunately, nail clubbing usually develops so slowly that you may be unaware of its happening and, therefore, ignore this important sign. | Bill Sardi See book keywords and concepts | In mice who had melanoma cancer cells implanted and were then given high-dose cisplatin, vitamin E prolonged survival. While cisplatin alone produces death in about 70% of mice, the combination of vitamin E and cisplatin reduced this figure to 30%. Thus, vitamin E was found to protect against the toxicity of cisplatin without affecting survival. [International Journal Cancer 104: 243-450, 2003]
Today there is a tendency to associate with cancer the disease - wasting, hair loss, infection and bleeding - that is, in fact, caused by the drugs used to treat the disease. | | J National Cancer Institute 97: 195-99, 2005] Diets low in alcohol intake and consist of vitamin D and carotenes (beta carotene, lycopene, lutein) which are skin antioxidants, may reduce the risk for melanoma. [Cancer Epidemiology Biomarkers Prevention 13: 1042-51, 2004]
Why not prevent them all?
There are so many types of cancer to prevent. Should adults take one pill to prevent "this" type of cancer, and another pill for "thaf type of cancer? There are chemopreventive molecules that have widespread anti-cancer action. | Joan Liebmann-Smith, Ph. D., and Jacqueline Nardi Egan See book keywords and concepts | However, when it does most common cancer in the United occur in blacks, melanoma is deadlier. States. The good news is that BCC, which occurs in the outer layer of the skin (epidermis), rarely metastasizes. The bad news is that if left untreated, it can invade surrounding tissue, causing serious damage and disfigurement, as well as spread to other organs. warning sign
Even if treated successfully.about 25% of people with BCC will have a recurrence within 5 years. | Bill Sardi See book keywords and concepts | A patient with metastatic melanoma at the back of the eyes, for whom chemotherapy was ineffective, was given artemisinin on a compassionate basis. Regression of cancer in the lungs and spleen were reported. The patient was still alive 47 months following treatment whereas median survival is usually only 2 to 5 months. [Oncology Reports 14: 1599-603, 2005]
It is artemisinin's use as an anti-malarial drug that may really upset the apple cart when it comes to anti-cancer drugs. World health authorities claim artemisinin's cost, $2. | Mehmet C. Oz., M.D. and Michael F. Roizen, M.D. See book keywords and concepts | The other kind of cancer, melanoma, is related to sunburns, as opposed to long-term exposure, and it's much more dangerous.
Interesting note: The majority of skin cancers occur on the left side of the face. Why? Driving. The trend these days is to have bigger windows and moon roofs. Makes sense, especially when you consider that driver's side windows aren't tinted. (UV protection with tinting occurred only in the last five years.) You should try to keep your window up while driving (it's energy saving as well), and make sure to wear sunblock even if you're ^ ^/ in the car. | Joan Liebmann-Smith, Ph. D., and Jacqueline Nardi Egan See book keywords and concepts | But when they do get skin cancer, it's more likely to be SCC than either BCC or melanoma.
Regardless of skin tone, SCC can occur on skin that's been injured from burns, scars, sores that don't readily heal, and sites previously exposed to a large number of X-rays or certain toxic chemicals. In addition,
þSkin cancer is the only cancer that's almost totally preventable. Yet 1 in 6 people in the United States will develop skin cancer. conditions that cause chronic skin inflammation or suppress the immune system over an extended period put a person at risk for SCC. | Joerg Gruenwald, Ph.D. See book keywords and concepts | Pisha E et al, Discovery of betulinic acid as a selective inhibitor of human melanoma that functions by induction of apoptosis. In: Nature Medicine 1:1046-1051. 1995.
Ridding B, Glombitza KW, Saponins in the leaves of birch? Hemolytic dammarane triterpenoids esters of Betula pendula. In: PM 59(1):77. 1993.
Schilcher H, Boesel R, Effenberger ST Segebrecht S, Neuere Untersuchungsergebnisse mit aquaretisch, antibakteriell und prostatotrop wirksamen Arzneipflanzen. In: ZPT 10(3):77. 1989.
Sokeland J, Phytotherapie in der Urologie. In: ZPT 10(1):8. 1989. | Bottom Line Health See book keywords and concepts | | Curry Fights Skin Cancer
In a lab study of human cells, curcumin (the compound that makes curry yellow) was shown to interfere with the development of melanoma cells.
Past studies have shown that people who eat curry in abundance have lower rates of lung, colon, prostate and breast cancers.
Theory: Curcumin curbs inflammation, a risk factor for cancer.
Self-defense: Eat one-half tablespoon of curry every day.
Bharat B. Aggarwal, PhD, professor of cancer medicine, M.D. Anderson Cancer Center, University of Texas, Houston. | | It's very important for parents to protect young children from the sun because some of the genetic alterations that occur in melanoma may begin to develop when people are young.
New Sunscreen Promises More Protection
Darrell S. Rigel, MD, clinical professor of dermatology, New York University, New York City.
Kimberly A. Rawlings, spokeswoman, US Food and Drug Administration.
Jeffrey C. Salomon, MD, assistant clinical professor of plastic surgery, Yale University School of Medicine, New Haven, CT. | Joan Liebmann-Smith, Ph. D., and Jacqueline Nardi Egan See book keywords and concepts | Vertical Dark Bands
Vww/ The acronym abcdef was devised to help draw attention to and diagnose subungual melanoma. | Bill Sardi See book keywords and concepts | Seminars Cancer Biology 7: 49-53, 1996] For instance, the genes linked to ovarian cancer (BRCA1), colon cancer (hMSH2 and hMLHl), and melanoma (MLM) confer a higher lifetime risk for cancer, but represent less than 5% of these types of cancer. [British Medical Bulletin 50: 527-35, 1994]
Certainly studies of twins, who have the same genes, should help sort out whether genes or environmental factors (diet, exposure to carcinogens) play the strongest role in the onset of cancer. | Bottom Line Health See book keywords and concepts | | Many of these adjuvant studies are focused on melanoma, a deadly skin cancer, because it is thought to be more susceptible to the immune system's attack.
•How successful are cancer vaccines?
Studies show that 3% to 5% of solid tumors, such as those found in the lung, breast or prostate, shrink after using a cancer vaccine. In nonsolid, or hematological, cancers, such as leukemias and lymphomas, the response rate is slightly higher, because of the unique antigens in these types of cancers.
These success rates may sound low, but there's reason to be optimistic. | | It way outpaces melanoma and prostate cancer," says Dr. Rhonda F. Souza, coauthor of the report and associate professor of medicine at the Dallas VA Medical Center and the Harold C. Simmons Comprehensive Cancer Center at the University of Texas Southwestern Medical Center at Dallas.
The incidence of esophageal adenocarcinomas has soared 600% since the 1970s. By contrast, the incidence of gastric cancers has been on the wane in most Western countries for the last 50 years. | Joan Liebmann-Smith, Ph. D., and Jacqueline Nardi Egan See book keywords and concepts | Basal cell carcinoma (BCC) is the most common, and melanoma is the rarest but most deadly. (See Lumps and Bumps, below.) SCCs are usually red, inflamed, and crusty or scaly patches that have irregular borders. They may be slightly raised and wart-like, break open (ulcerate), bleed, and often fail to heal.
Like all skin cancers, SCC is due mainly to exposure to ultraviolet (UV) rays from the sun or from tanning parlors. The carcinogenic effects of UV rays from any source are cumulative.
Skin cancers are most often
SIGNIFICANT FACT , , i . | Jonny Bowden, Ph.D., C.N.S. See book keywords and concepts | Anderson Cancer Center reviewed dozens of studies on resveratrol and concluded that it exhibited anticancer properties against a wide range of tumor cells, including lymphoid and myeloid cancers, multiple myeloma, cancers of the breast, prostate, stomach, colon, pancreas, and thyroid, melanoma, head and neck squamous cell carcinoma, ovarian carcinoma, and cervical carcinoma. The researchers concluded that "resveratrol appears to exhibit therapeutic effects against cancer."
Drink Red Wine for a Longer Life
Resveratrol may be one of the best antiaging substances around. | Erich Grotewold See book keywords and concepts | C, 2001, Inhibition of melanoma growth and metastasis by combination with (-)-epigallocatechin-3-gallate and dacarbazine in mice, J Cell Biochem, 83: 631-642.
Liu, R. H., 2004, Potential synergy of phytochemicals in cancer prevention: mechanism of action, J Nutr, 134: 3479s-3485s.
Liu, R. H., Liu, J., and Chen, B., 2005, Apples prevent mammary tumors in rats, J Agric Food Chem, 53: 2341-2343.
Luke, M. C, and Coffey, D. S., 1994, Human androgen receptor binding to the androgen response element of prostate specific antigen, J Androl, 15: 41-51. Makita, H., Tanaka, T., Fujitsuka, H. | | Apoptosis of murine melanoma B16-BL6 cells induced by quercetin targeting mitochondria, inhibiting expression of PKC-alpha and translocating
PKC-delta, Cancer Chemother Pharmacol, 55: 251-262. Zhou, J. R., Mukherjee, P., Gugger, E. T., Tanaka, T., Blackburn, G. L., and Clinton, S. K, 1998,
Inhibition of murine bladder tumorigenesis by soy isoflavones via alterations in the cell cycle, apoptosis, and angiogenesis, Cancer Res, 58: 5231-5238.
CHAPTER 9
FLAVONOIDS AS SIGNAL MOLECULES
Targets of Flavonoid Action
WENDY ANN PEER AND ANGUS S. |
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