The Lancet OncologyOctober 02, 2002CLEAR SKIES NOT SO CLEAN This months Leading Edge editorial examines the recently published US Environmental Protection Agency`s (EPA) 10-year in-the-making report on the toxic effects of diesel exhaust fumes from large vehicles. The report-which showed that large cities are heavily polluted with emissions that are associated with increased risk of lung cancer-has clear public-health implications for a political administration that does not appear to giving a high priority to environmental issues. The editorial comments: 'The development of effective environmental policies should be a priority for all governments. Healthcare professionals are in great need of solid evidence-based policies rather than legislation based on economic or qualitative criteria. When a report with the strength of the EPA study presents persuasive quantitative evidence, the benefits of any resultant policies should be patently obvious and viewed as an integral part of healthcare provision, rather than isolated environmental issues.' HORMONAL RISK FACTORS FOR BREAST CANCER - IDENTIFICATION, CHEMOPREVENTION, AND OTHER PREVENTION STRATEGIES Breast cancer is a leading cause of female illness and death worldwide. Many hormonal and genetic risk factors have been identified and have led to the development of mathematical models that can be used in the clinic to give a woman an estimate of her individual risk of developing breast cancer. These models can also be used to identify women who might benefit from breast-cancer chemoprevention with tamoxifen or be suitable for entry into trials with new agents. This review article discusses two mathematical models (the Gale model and the Clause model) and their relative strengths in identifying a woman's breast-cancer risk. The Claus model is based mainly on family history, whereas the Gail model also includes simple markers of oestrogen exposure. The authors also explore more sophisticated measures of lifetime oestrogen exposure that can be used to improve the discriminatory ability of these models; they also appraise the four trials of breast-cancer chemoprevention, including the trial that led to the licensing of tamoxifen in the USA. The review concludes with a discussion other agents and interventions that could be used in the future to improve the efficacy and tolerability of breast-cancer risk reduction. OTHER REVIEWS: Neoadjuvant and adjuvant therapy for resectable hepatocellular carcinoma: review of the randomised clinical trials Dynamism of tumour vasculature in the early phase of cancer progression: outcomes from oesophageal cancer research Informing and involving cancer patients in their own care. Quality of life in patients undergoing systemic therapy for advanced breast cancer. Beyond futility: to what extend is the concept of futility used in clinical decision-making about CPR? Lancet |
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| Related Estrogen Current Events and Estrogen News Articles Menopause-cardiology consensus statement on cardiovascular disease and on HRT A menopause-cardiology consensus statement has called for direct action to prevent cardiovascular disease (CVD) in menopausal women. The statement also concludes that there is little evidence of increased CVD risk in taking HRT. Heart and bone damage from low vitamin D tied to declines in sex hormones Researchers at Johns Hopkins are reporting what is believed to be the first conclusive evidence in men that the long-term ill effects of vitamin D deficiency are amplified by lower levels of the key sex hormone estrogen, but not testosterone. Fertility procedures need not delay breast cancer treatment for younger women A new study published in the November issue of the Journal of the American College of Surgeons shows that breast cancer patients under 40 years old who undergo fertility preservation do not face a significant delay in the treatment of their disease when their care is coordinated in a timely fashion. Coffee break: Compound brewing new research in colon, breast cancer A compound in coffee has been found to be estrogenic in studies by Texas AgriLife Research scientists. Mayo researchers find robotic repair for vaginal prolapse has significant benefits New Mayo Clinic research has found that robotic surgery for vaginal prolapse dramatically reduces patient hospital stay and recovery time. Estrogen therapy likely must be given soon after menopause to provide stroke protection For estrogen replacement to provide stroke protection, it likely must be given soon after levels drop because of menopause or surgical removal of the ovaries, scientists report in the Journal of Neuroscience. Oral contraceptives may benefit women with asthma New research shows that during natural menstrual cycles, women with asthma who were not taking oral contraceptives (OC) had lower exhaled nitric oxide levels (eNO), a marker of airway inflammation associated with asthma, than women who were taking OC. Study shows hormone replacement therapy decreases mortality in younger postmenopausal woman Hormone replacement therapy (HRT) to treat menopausal estrogen deficiency has been in widespread use for over 60 years. Several observational studies over the years showed that HRT use by younger postmenopausal women was associated with a significant reduction in total mortality; available evidence supported the routine use of HRT to increase longevity in postmenopausal women. Hormone mix could cut breast cancer risk and treat symptoms of menopause The right combination of estrogen and a selective estrogen receptor modulator (SERM), which blocks the effects of estrogen in breast tissue, could relieve menopause symptoms and cut breast cancer risk. Breast tenderness during hormone replacement therapy linked to elevated cancer risk Women who developed new-onset breast tenderness after starting estrogen plus progestin hormone replacement therapy were at significantly higher risk for developing breast cancer than women on the combination therapy who didn't experience such tenderness, according to a new UCLA study. More Estrogen Current Events and Estrogen News Articles |
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