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[Cancer family syndrome in lung cancer--Li-Fraumeni syndrome in lung cancer].

A family with lung cancer family syndrome was reported with 5 persons of the Ist relatives, 3 of IInd relatives and one of IIIrd relatives, in whom one was synchronous, one asynchronous double cancers and one was in combination with lung cancer and renal cell carcinoma. Four surgical specimens were investigated in terms of p53 mutation by PCR-SSCR and also the analysis of ploidy pattern, AgNOR and PCNA. As a result, a special pattern of lung cancer family syndrome was not detected as compared with other lung cancer patients.

Adult↗

Tumor-associated antigens in cervical cancer tissues and in sera from patients with cervical cancer or with head and neck cancer.

Hyperimmune New Zealand White rabbit sera prepared against partially purified tumor-associated antigens (TAA) of invasive cervical cancer tissues (CaCx's) were used to demonstrate TAA in CaCx's and circulating TAA (C-TAA) in sera from patients with cervical cancer or with head and neck cancer. Anti-CaCx serum adsorbed with pooled normal cervical tissue (NCx) antigen preparations and with lyophilized pooled normal human plasma gave precipitin in gel reactions with CaCx but not with NCx, which indicated the presence of TAA in CaCx. The adsorbed antisera reacted with sera from patients with cervical and head and neck cancers, which indicated the presence of C-TAA in such sera. False-positive reactions with control sera from normal humans or from patients with benign gynecologic diseases were much less frequently observed. Statistical analysis of data obtained by the testing of 96 coded serum samples from the National Cancer Institute-Mayo Clinic Serum Bank (Rochester, Minn.) revealed that the results were significant and that specificity was high but sensitivity of the assay was relatively low.

Adult↗

[Molecular pathology in hereditary colorectal cancer. Recommendations of the Collaborative German Study Group on hereditary colorectal cancer funded by the German Cancer Aid (Deutsche Krebshilfe)].

Although twin studies indicate that inherited genetic factors contribute to about 35% of colorectal cancers (CRC), the exact genetic background has currently been elucidated in only 5-10% of cases. These comprise several hereditary cancer predisposition syndromes that present with a high number of syn- or metachronous neoplasms within an affected person and/or family. Many of these tumors exhibit typical histopathological changes. In general, one should discriminate between cancer syndromes associated with adenomatous and non-adenomatous (i.e., hamartomatous) polyps, the latter being quite rare. The patient's age often serves as a substantial hint to hereditary cancer. The next step of diagnostic work-up includes analysis of microsatellite instability (MSI) together with immunohistochemical detection of a loss of expression in one of the most frequently affected mismatch repair genes (MSH2, MSH6; MLH1, PMS2). Finally, the molecular demonstration of a gene mutation in the blood or germline is the most expensive and tedious procedure. This requires a signed informed consent from the patient after appropriate genetic counseling.

Colonic Neoplasms↗

American Cancer Society Guidelines on Nutrition and Physical Activity for cancer prevention: reducing the risk of cancer with healthy food choices and physical activity.

The American Cancer Society (ACS) publishes Nutrition and Physical Activity Guidelines to serve as a foundation for its communication, policy, and community strategies and ultimately, to affect dietary and physical activity patterns among Americans. These Guidelines, published every 5 years, are developed by a national panel of experts in cancer research, prevention, epidemiology, public health, and policy, and as such, they represent the most current scientific evidence related to dietary and activity patterns and cancer risk. The ACS Guidelines include recommendations for individual choices regarding diet and physical activity patterns, but those choices occur within a community context that either facilitates or interferes with healthy behaviors. Community efforts are essential to create a social environment that promotes healthy food choices and physical activity. Therefore, this committee presents one key recommendation for community action to accompany the four recommendations for individual choices to reduce cancer risk. This recommendation for community action recognizes that a supportive social environment is indispensable if individuals at all levels of society are to have genuine opportunities to choose healthy behaviors. The ACS Guidelines are consistent with guidelines from the American Heart Association and the American Diabetes Association for the prevention of coronary heart disease and diabetes, as well as for general health promotion, as defined by the Department of Health and Human Services' 2005 Dietary Guidelines for Americans.

Alcohol Drinking↗

Cost analyses of prostate cancer screening: frameworks for discussion. Investigators of the American Cancer Society-National Prostate Cancer Detection Project.

Our recent cost analysis of prostate cancer early detection evaluated the economic performance of various prostate specific antigen (PSA) screening approaches, detected marginal cost variations with time and used a benefit-cost calculation as a framework for further discussion. Receiver operator characteristic analysis initially suggested an optimal test performance for PSA of 2 to 3 ng./ml. when used alone and at approximately 3 ng./ml. in combination with digital rectal examination. However, lower PSA decision levels require cost justifications. Marginal cost analysis demonstrated markedly decreased use of digital rectal examination by year 3 due to significantly lower sensitivity for incident cancer. The benefit-cost equation acknowledges that many parameters of cost and probability are not definitive to date yet illustrated major points for discussion. The cost parameters most sensitive to incremental change in decreasing order are the specificity of the screening test, benefits obtained from early therapy and prevalence of the disease. Discussions about improving the likelihood of overall benefit for the United States population should focus on these parameters, as well as social and ethical implications. If we assume minimized future expenditures for terminal cancer care via decreases in therapy choices or coverage, no economic benefit for screening exists. If we also assume that potential costs to society are not roughly approximated by any benefits, we may engender inappropriate attempts at cost reduction by effectively discouraging screening in the highest risk groups. Perhaps the greatest immediate cost control issue is the marked increase in prostate cancer detection in the oldest age groups who have the least likelihood of mortality or morbidity benefits. Current cost savings may be possible with improved public health education about the appropriateness of early detection in the oldest age groups or those with significant preexisting medical conditions.

American Cancer Society↗

Evaluation of the American Cancer Society's breast cancer-related documents by cancer survivors.

BACKGROUND: In an attempt to address the informational needs of female breast cancer survivors, the American Cancer Society (ACS) develops and distributes written documents. Although this educational effort has been well received, little attention has been given to the suitability of the materials themselves. METHODS: A random sample of 812 survivors was derived from callers to the ACS National Cancer Information Center (NCIC) from July to December of 2000. The participants then rated the three most commonly distributed breast cancer information documents on five dimensions 1). presentation, 2). satisfaction, 3). understanding, 4). anxiety, and 5). impact. RESULTS: . Participants responded favorably to four of the five rating categories. Conclusions. The evidence suggests that the three materials had positive health outcomes and were well received by the survivors.

American Cancer Society↗