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Science News Archive April 2009 - Page 19


Page 19 of 24

Heartburn medications do not ease asthma symptoms

A new study by the American Lung Association found that heartburn medication does not help control asthma symptoms in adults with poorly controlled asthma and no significant heartburn symptoms. Despite using a high dose of esomeprazole, participants showed no improvement in asthma episodes or control.

SourceWashU Medicine·JournalNew England Journal of Medicine·DateApr 8, 2009

Study: Treatment for acid reflux does not improve asthma

A study published in the New England Journal of Medicine found that proton pump inhibitors do not improve asthma control in patients with persistent acid reflux. Researchers examined 402 adults with asthma over 24 weeks and found no benefits from treatment, saving patients unnecessary costs and potential side effects.

SourceOhio State University·JournalNew England Journal of Medicine·DateApr 8, 2009

Purple does not stand for prevention in asthma

A 20-center study of 402 patients with poorly controlled asthma found that proton pump inhibitors did not improve asthma control, despite previous beliefs about their role. In fact, half the patients showed excess acid in their gastrointestinal tract, but heartburn medications had no effect.

SourceBaylor College of Medicine·JournalNew England Journal of Medicine·DateApr 8, 2009

Biomedical researchers invited to design experiments for the International Space Station

The NIH-NASA partnership aims to facilitate biomedical research on the International Space Station, addressing pressing health questions through unique microgravity conditions. Biomedical experiments will focus on bone and muscle deterioration, infectious disease, cancer growth, and more, with the goal of improving human health on Earth.

Community provides essential support to military families

A new article in Family Relations explores the concept of community capacity building to provide essential support to military families. The framework outlines a collaborative approach to connecting isolated families with support services, enhancing family strengths and preventing stressful experiences from becoming crises.

SourceWiley·JournalFamily Relations·DateApr 8, 2009

Multifocal lung cancers appear to originate from single cancer clone

A retrospective analysis found that multiple lung tumors in patients often arise from a single cancer cell, suggesting multifocal lung cancers should be classified as advanced-stage cancers. The study analyzed 70 tumor samples and concluded that 77% of patients had multiple tumors originating from a single clone.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateApr 7, 2009

Scientists discover pentagonal ice

Researchers discovered a five-sided ice chain structure, building from pentagon-shaped rings, which challenges the commonly seen hexagonal structures of ice formations. This finding could lead to new materials for seeding clouds and causing rain, improving weather modification techniques.

SourceUniversity of Liverpool·JournalNature Materials·DateApr 7, 2009

Also in the April 7 JNCI

A large cohort study found that long-term survivors of hereditary retinoblastoma are at a significantly increased risk of death due to subsequent cancers. Hereditary retinoblastoma survivors had a 35-fold higher mortality rate compared to the general population.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateApr 7, 2009

Altered gene can increase risk of schizophrenia

A specific DNA change has been identified as a potential mechanism for developing schizophrenia. The research found that the altered gene increases expression in cells grown in culture, echoing findings in postmortem brain samples from individuals with schizophrenia.

SourceRutgers University·JournalAmerican Journal of Psychiatry·DateApr 7, 2009

Intervention reduces children's viewing of violent TV

A study published in the Journal of Applied Developmental Psychology found a classroom-based intervention reduced violent TV viewing among first- through fourth-grade children by 18%. The intervention, called The REViEW Project Curriculum, also decreased students' identification with violent superheroes.

SourceOregon State University·JournalJournal of Applied Developmental Psychology·DateApr 7, 2009

Wild chimpanzees exchange meat for sex

Researchers found that females copulate more frequently with males who share meat with them, compared to those who never share. This suggests that sharing meat with females improves males' mating success and may be a long-term strategy for securing mates.

SourcePLOS·JournalPLOS ONE·DateApr 7, 2009

Has HIV become more virulent?

A recent study found that HIV-positive patients are entering care with lower initial CD4 cell counts and often require antiretroviral therapy soon after diagnosis. The trend suggests the virus has become more virulent, with a significant increase in patients requiring treatment before reaching the threshold of 350 CD4 cells/mm³.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateApr 7, 2009

From three to four: A quantum leap in few-body physics

Researchers at the University of Innsbruck experimentally prove the existence of four-body loss resonances closely tied to Efimov trimer states, providing strong evidence for these new universal states. This achievement marks an important step towards simplifying laws for complex interactions in few-body physics.

SourceUniversity of Innsbruck·JournalPhysical Review Letters·DateApr 7, 2009

Better living through chemistry

Scientists discovered dynamic microbial communities in deep-sea mud volcanoes and brine pools with harsh conditions, supporting life processes on early Earth, Mars, and moons like Jupiter's Europa. These findings provide new insights into microbial adaptation and the potential for life beyond Earth.

SourceU.S. National Science Foundation·JournalNature Geoscience·DateApr 7, 2009

A woman's nose knows body odor

Women outperform men in detecting body odors, particularly those from the opposite sex. The study suggests that human sweat conveys information of particular importance to females, explaining why it is challenging to block women's perception of sweat odors.

SourceMonell Chemical Senses Center·JournalFlavour and Fragrance Journal·DateApr 7, 2009

Owls' dawn and dusk concerts promote visual communication

Research found that eagle owls utilize vocal displays during dawn and dusk to convey visual signals, with a white throat badge providing better contrast in low light conditions. This challenges the assumption that diurnal species are the primary users of visual signalling.

SourcePLOS·JournalPLOS ONE·DateApr 7, 2009