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Science News for October 19, 2004


Other highlights in the October 20 JNCI

A new study found that high birth weight is associated with an increased risk of childhood acute lymphoblastic leukemia (ALL) but not acute myeloid leukemia (AML). Researchers used data from health registers in four Nordic countries to conduct a case-control study involving over 2,000 children with ALL or AML and their siblings. They a...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateOct 19, 2004

Ductal lavage may not detect breast cancer

A pilot study found that ductal lavage detected only half of the cancers in breasts with known cancer. The procedure's effectiveness is limited by poor agreement between cytologic analysis and microscopic results. Mammography and physical examination remain the most effective methods of early detection.

SourceNorthwestern Memorial HealthCare·JournalJNCI Journal of the National Cancer Institute·DateOct 19, 2004

When good metals go bad

Researchers will model the behavior of individual atoms to gain a better understanding of stress corrosion cracking in metals. The goal is to prevent damage and create more corrosion-resistant materials, leading to safer structures and potentially even improved comfort for travelers.

Multicultural teenagers' self-esteem high: Study

A recent study by Professor Nazilla Khanlou found that multicultural teenagers in Canada have similar levels of self-esteem, regardless of their ethnic background. The research, published in Public Health Nursing, explored influences on adolescent self-esteem and identified factors such as school, lifestyle, personality, and relationsh...

SourceUniversity of Toronto·JournalPublic Health Nursing·DateOct 19, 2004

Study examines reasons for late-stage breast cancers

A study found that late-stage breast cancer cases were often associated with an absence of screening, followed by absence of detection or a potential breakdown in follow-up care. Women from lower socioeconomic backgrounds and those without a family history of breast cancer were more likely to be in the absence-of-screening group.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateOct 19, 2004

Chemotherapy, but not tamoxifen, associated with stroke risk after breast cancer treatment

A study found that chemotherapy, but not tamoxifen, is linked to an increased risk of stroke in breast cancer patients. Women who had not completed menopause and those with a history of hypertension or diabetes were more likely to experience a stroke. The researchers conclude that women can use tamoxifen without concern for stroke risk.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateOct 19, 2004

Unionized male visible minorities earn less: Study

A recent study analyzed hourly wages by gender and union affiliation among Canadians. Male visible minorities in unions earned 12% less than European background males, while unions improved women's wages on average. The findings suggest that unions must develop specific goals to target wage disparities faced by ethnic minorities.

Two novel agents work synergistically to treat lung cancer in animal experiment

Researchers found that a combination of two novel agents - SCH66336 and IGFBP-3 - significantly reduced lung tumor size in mice implanted with human lung tumors. The treatment blocked multiple pathways important to cancer cell survival, showing tremendous potential for treating lung cancer patients.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalJNCI Journal of the National Cancer Institute·DateOct 19, 2004