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Science News for November 29, 2006


Go to church and breathe easier

A Temple University study found that regular church attendance slows pulmonary function decline among men and women over 70. The study suggests that religious engagement provides social contact, emotional support, and psychological well-being, potentially benefiting health.

SourceTemple University·JournalAnnals of Behavioral Medicine·DateNov 29, 2006

What cures your aches might prevent cancer

Researchers are investigating the potential of nonsteroidal anti-inflammatory drugs (NSAIDs) to prevent various types of cancer, including colon, esophageal, and lung cancers. The studies focus on the preventive effects of sulindac, atorvastatin, and RaftiloseSynergy1 on cancer development.

International HIV/AIDS trial finds risks increase on episodic antiretroviral therapy

A large HIV/AIDS treatment trial found that interrupting antiretroviral therapy more than doubles the risk of AIDS or death from any cause. The study used two levels of CD4+ T cells to guide therapy suspension and restarting, but participants receiving episodic therapy had a significantly increased risk of disease progression.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNew England Journal of Medicine·DateNov 29, 2006

Measuring pandemic preparedness

A federal plan to vaccinate healthcare workers against smallpox had a low compliance rate and high variability among states. Researchers found that some states ranked poorly due to lack of support and ambivalent messages from authorities.

SourceTemple University·JournalEpidemiology and Infection·DateNov 29, 2006

Drug labels are prescriptions for mistakes

A study found that patients with lower literacy and those taking multiple medications had difficulty understanding prescription label instructions. The researchers recommend redesigning label text and format, as well as a system approach to verify patient understanding, to improve quality care.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateNov 29, 2006

Cell death following blood 'reflow' injury tracked to natural toxin

A team of researchers at Johns Hopkins Medicine has discovered a natural toxin, PAR-polymer, responsible for most tissue and organ damage after a period of blood oxygen loss followed by restored blood flow. The toxin triggers cell death through a process called parthanatos, which can be prevented with potential new treatments.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateNov 29, 2006

Mystery of ancient astronomical calculator unveiled

Researchers have cracked the workings of the Antikythera Mechanism, a 2,000-year-old computer that tracked astronomical movements with remarkable precision. The ancient Greek device predicted eclipses and recreated the moon's irregular orbit, challenging previous assumptions about their technological capabilities.

SourceCardiff University·JournalNature·DateNov 29, 2006

Protective garment

Researchers have developed a breathable protective garment material that blocks toxic vapors while allowing water vapor to pass through, maintaining personal comfort and safety. The material is lightweight and selectively rejects chemical agents, making it an ideal solution for military personnel and emergency services.

SourceWiley·JournalAdvanced Materials·DateNov 29, 2006

Parental genes do what's best for baby

A new genetic theory suggests that certain offspring characteristics can only be explained by genetic cooperation between maternal and paternal genes. This challenges the prevailing view of a parental power struggle, instead proposing that positive interactions between mothers and their offspring drive imprinting patterns.

SourceUniversity of Manchester·JournalPLOS Biology·DateNov 29, 2006

New therapeutic hope for degenerative disc disease

Researchers found that embryonic cells from a dog's notochord can regenerate disc cartilage, providing new therapeutic options for degenerative disc disease. The study suggests that CTGF-secreting notochord cells protect non-chondrodystrophic dogs against the condition.

SourceWiley·JournalArthritis & Rheumatism·DateNov 29, 2006