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Science News Archive January 2010 - Page 12


Page 12 of 20

Gators breathe like birds

Researchers found that air flows in one direction through alligators' lungs, a trait shared with birds. This unidirectional airflow may have helped archosaurs dominate Earth after the Permian-Triassic extinction, which wiped out 70% of land life.

SourceUniversity of Utah·JournalScience·DateJan 14, 2010

The pink gene

Researchers discovered a single gene, SIMYB12, that regulates the production of yellow pigments and other substances in tomatoes. The mutation affects flavonoid levels, leading to less lycopene and altered cuticle composition.

SourceWeizmann Institute of Science·JournalPLOS Genetics·DateJan 14, 2010

Genome sequences for wasps will aid pest and disease control, provide new model organism

The availability of genome sequences for three parasitic wasp species will aid in analyzing complex genetic traits and advance our understanding of using these wasps as natural agents against pests and disease-carrying insects. Scientists hope to harness the power of these tiny wasps to protect food crops and save billions of dollars a...

SourceSan Francisco State University·JournalScience·DateJan 14, 2010

Incidental findings at MRI-enterography

In a study published in World Journal of Gastroenterology, researchers found that MRI-enterography revealed incidental findings outside the small intestine in 25% of patients with suspected or known Crohn's disease. These extra-intestinal manifestations were rare and did not necessarily require additional examinations.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateJan 14, 2010

Why mice develop 'knots' while exploring a new environment

Researchers found that mice create 'knots' – preferred places with high path tortuosity – during exploration, which enhance their visual scene interpretation, memory of the place, and provide multiple views. This study contributes to understanding how animals map environments and accomplish goals.

SourcePLOS·JournalPLOS Computational Biology·DateJan 14, 2010

Raising kids may lower blood pressure

A Brigham Young University study found that parenthood is associated with lower blood pressure, especially among women. The research suggests that social factors, such as deriving meaning and purpose from life's stress, may also protect physical health.

SourceBrigham Young University·JournalAnnals of Behavioral Medicine·DateJan 14, 2010

University of Pittsburgh researchers launching trial of new osteoporosis drug

Researchers are launching a human trial of a new osteoporosis drug, PTHrP, which may increase bone density more dramatically with fewer side effects than current treatments. The study aims to compare the efficacy of PTHrP with existing FDA-approved drugs for osteoporosis treatment.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalThe Journal of Clinical Endocrinology & Metabolism·DateJan 14, 2010

3 esophageal cancer cell lines commonly used in research prove to be from other cancers

Researchers verified that three commonly used esophageal adenocarcinoma cell lines were actually from lung carcinoma, colorectal adenocarcinoma, and gastric fundus carcinoma. This finding highlights the importance of authenticating cell lines to ensure accurate treatment strategies for esophageal cancer patients.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateJan 14, 2010

Animal behavioral studies can mimic human behavior

Researchers have identified a human genetic alteration associated with anxiety-related behavior in both humans and mice, which can inform the development of new clinical strategies to treat anxiety disorders. The study used functional magnetic resonance imaging (fMRI) to reveal altered brain function in individuals with this abnormality.

SourceNewYork-Presbyterian·JournalScience·DateJan 14, 2010

Key mechanism for the proliferation of Epstein-Barr virus discovered

Researchers at Helmholtz Munich identify the BZLF1 protein as a crucial factor in EBV's life cycle, enabling viral activation and gene expression. The study reveals a novel mechanism for virus detection and reactivation, providing insights into EBV's role in tumor growth.

Dual role for immune cells in the brain

Researchers found that macrophages along the blood-brain barrier can either activate the brain's stress response machinery or prevent excessive inflammation. This discovery may pave the way for novel therapies for neurodegenerative diseases.

SourceSalk Institute·JournalNeuron·DateJan 13, 2010

CSHL scientists use next-gen sequencing to rapidly discover genetic cause of devastating disorder

Scientists from CSHL and Hebrew University Medical Center use next-gen sequencing to rapidly identify the mutated TMEM216 gene as the cause of Joubert Syndrome. The study reveals a high carrier rate of 1:92 among Ashkenazi Jews, making it possible to prevent the disease through premarital genetic screening.

SourceCold Spring Harbor Laboratory·JournalAmerican Journal of Human Genetics·DateJan 13, 2010

Gender-biased heart damage

Researchers found that male hormones can help vessels around the heart regenerate, potentially explaining why men experience worse heart attacks earlier in life. Androgen replacement therapy might one day be used to treat men at risk for heart disease.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateJan 13, 2010

Nursing students twice as likely to smoke as the general population

A recent survey of over 800 new nursing students in Italy found that more than half were current or former smokers, with 44% still smoking and 12% being former smokers. The study also highlighted the significant influence of family members on smoking habits, with three-quarters of smoking students having at least one parent who smoked.

SourceWiley·JournalJournal of Advanced Nursing·DateJan 13, 2010

Self-control is contagious, study finds

Researchers found that watching or thinking about someone with good self-control makes others more likely to exert self-control. Conversely, people with bad self-control influence others negatively. The effect of self-control is so powerful that subliminal exposure can change behavior.

SourceUniversity of Georgia·JournalPersonality and Social Psychology Bulletin·DateJan 13, 2010