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Experts, should be good for the skin cancer patients excellent care, especially in the summer, after a study found relatively strong in the areas of ultraviolet radiation, the incidence of skin cancer was significantly increased, while the UV radiation-induced immune suppression is caused an important factor in skin cancer. Since the destruction of the ozone layer is increasing the atmosphere, ultraviolet radiation reaching the earth's surface the amount of increased year by year. For every 1% reduction in the ozone layer, ultraviolet radiation has increased by about 2%, resulting in the incidence of skin cancer increased year by year.
According to the American Journal of Dermatology reported in the United States, the new skin cancer cases each year over 1 million, equivalent to the sum of human variety of other cancers, and the incidence of skin cancer increased year by year.
Practice has proved that sunscreen protects against ultraviolet radiation-induced immune suppression, to reduce the incidence of skin cancer has an irreplaceable role.
First, the right to choose a sunscreen
Sunscreen can block all UVB rays, UVB rays can cause sunburn and skin cancer. But not all UVA sunscreen can prevent the injection of light, UVA can enter the deeper dermis layer of our direct, it can cause skin cancer and skin damage, fine lines such as skin or wrinkles, brown spots become rough and . We used to think that UVA light tan it just makes us, so just ignore it, and


now we know that UVA rays can cause skin cancer and premature aging of skin or the culprit.
But more and more sunscreen have developed a new formula to prevent UVA and UVB, with those products are generally typical
Skin cancer is the most common malignant tumors. New research shows that prescription cream - vitamins derived - often used to treat acne and psoriasis may help prevent some people susceptible to skin cancer disease.
A derivative of vitamin pills composed of - such as retinoic acid acne medication - has been shown to shrink tumors. However, the necessary dose of skin cancer, and its side effects are often too much to bear, principal investigator, Dr. Epstein said little Owen, Clinical Professor of Medicine at the University of California, San Francisco dermatologist. But the relatively new retinoic acid ointment, such as Tazorac, cancer risk may provide a safer alternative to prevention.
Exposure in 11-month study, ultraviolet radiation, skin cancer in mice three times a week the number and size of 85%, in line with and without treatment with vitamin A derivatives, treatment of mice Tazaroccompared small.
To help measure the cream of what the researchers used mice, the ability of the full impact, as with basal cell nevus syndrome (BCNS), also Gorlin's syndrome, one of the model. This rare disease who have basal cell carcinoma, the most common risk is much higher - though usually not fatal - form of skin cancer is usually caused by excessive sun exposure.
Epstein on the findings in the American Chamber of Commerce this week on the prevention of cancer research annual meeting.
Tazorac is often used to treat severe facial acne, partly to keep the skin pores clear. It also applies to the treatment of skin redness, reduce the number and size of lesions of psoriasis. This drug may cause skin allergies and other minor side effects, peeling, but will not lead to oral retinoids, including blood pressure problems and liver fat and cholesterol content of serious side effects.
Epstein's research news was met by experts, some of whom expressed the hope to find in developing countries can benefit the skin tumors, such as organ transplant patients, who have had skin cancer before, other high-risk optimistic.

Chinese Medicine (English)> -aminolevulinic acid photodynamic therapy of skin cancer assessment -aminolevulinic acid photodynamic therapy of skin cancer evaluation full Add to Favorites
Objective In recent years, many countries will be increasingly widely -aminolevulinic acid photodynamic therapy (ALA-PDT) for the treatment of skin cancer and other diseases. The purpose of this study is to investigate and assess the ALA-PDT treatment of skin cancer in China effect. Methods 88 patients in 1997-2000 in our hospital for the first time to accept ALA-PDT treatment, including 34 cases of basal cell carcinoma (BCC), 32 cases of squamous cell carcinoma (SCC), 2 cases of basal - squamous cell carcinoma (BSCC), 1 verrucous carcinoma, 9 cases of Bowen disease, 2 cases and 8 cases of breast Paget disease Paget disease outside the breast. followed for 1-3 years. Results After 1-4 times ALA photodynamic therapy, for all BCC cases, including 11 cases of superficial type and 29 cases of solid lesions, are given recovery (CR). all the SCC cases ( , grade) ALA-PDT after a 3-6 second complete remission after treatment, only 1 case of glandular like SCC ( level) excluded. receiving 1-4 treatments, all cases of Bowen's disease have achieved complete remission. for Paget disease, while relying solely on ALA-PDT can not make the cure, but can control their symptoms. follow-up 1 - 3 years, BCC recurrence rate was 11% (4 / 34), SCC 22% (7 / 22), re-treatment is effective. Conclusions ALA-PDT for BCC, SCC, Bowen disease and Paget disease, is a species is effective, non-invasive, no side effects of treatment, patients tolerated well, especially for the intolerant of other therapies, too old and frail patients, and patients with specific tumor site. It the treatment of skin cancer, a new alternative therapies. of positive Xu (Wuhan University People's Hospital of Dermatology, Wuhan, 430060); Wang Xiuli (People's Hospital of Wuhan University, Department of Dermatology, Wuhan, 430060); Xu Wei (Wuhan University People's Hospital of the skin Branch, Wuhan, 430060); Xiayu Min (People's Hospital of Wuhan University, Department of Dermatology, Wuhan, 430060); Chun-Rong Zhang (Wuhan University People's Hospital of Dermatology, Wuhan, 430060); Title Chinese Medical Journal (English Edition) Volume 08 2002 115 English Journal Name CHINESE MEDICAL JOURNAL Key words -aminolevulinic acid (ALA) photodynamic therapy (PDT) basal cell carcinoma (BCC) Squamous cell carcinoma (SCC) basal - squamous cell carcinoma (BSCC) Verrucous carcinoma of Bowen Disease Paget disease -aminolevulinic acid photodynamic therapybasal cell carcinomasquamous cell carcinomabasal-squamous cell carcinomaverrucuou s carcinomaBowen diseasePaget disease CLC name of the R73 part 6 citations similar to the literature references cited literature similar degree in foreign language similar to similar meetings


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