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Science News Archive 2009 - Page 208


Page 208 of 277

Diabetes drug class linked to vision-threatening complication

A large study found that glitazone diabetes drugs increase the risk of diabetic macular edema by 60%, a condition that can lead to progressive visual loss. The study's results suggest that ophthalmologists should consider the role of glitazones when treating patients with DME.

SourceElsevier·JournalAmerican Journal of Ophthalmology·DateApr 2, 2009

Parents' sexuality influences adoption choices

A study published in Springer's Sex Roles journal found that gay men are more likely to prefer adopting a boy, while heterosexual men are the least likely. Heterosexual couples tend to prefer girls over boys, with reasons varying by sexuality, including patriarchal norms and perceived socialization challenges.

SourceSpringer·JournalSex Roles·DateApr 2, 2009

Lead in the blood increases women's mortality

A study of 533 American women found that those with blood lead concentrations above 8μg/dL were three times more likely to die of coronary heart disease. The research adds to the existing evidence on the adverse effects of lead on health, particularly among older cohorts exposed to higher levels of environmental lead.

SourceBMC (BioMed Central)·JournalEnvironmental Health·DateApr 2, 2009

Cancer stem cells generated by cancer outgrowth

Researchers discovered that growing mouse skin cells in spheres can lead to generation of cells with properties of cancer stem cells. The study found that mutation of the retinoblastoma tumor suppressor gene family led to reprogramming of differentiated cells into cancer stem cells.

SourceCell Press·JournalCell Stem Cell·DateApr 2, 2009

Artificial pump effectively backs up failing hearts

A new, smaller, and lighter implantable heart pump has been shown to be effective in bridging patients with severe heart failure to eventual transplantation. The device, called a left ventricular assist device (LVAD), was tested on 98 patients and found to improve their quality of life and survival rates.

Researchers find current drug can treat rare heart disorder

Researchers have discovered a potential treatment for Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT), a rare inherited heart disorder that causes sudden cardiac deaths. Flecainide, a drug used to treat heart arrhythmias, has been found to reduce calcium release in heart cells, counteracting the cause of CPVT.

SourceResearch Australia·JournalNature Medicine·DateApr 1, 2009

Journal of Correctional Health Care accepted in Medline

The Journal of Correctional Health Care has been accepted into the premier bibliographic database MEDLINE, making its research and case studies more accessible to a vast audience. The journal, published by SAGE on behalf of NCCHC, addresses correctional health care topics through original research, best practices, and literature reviews.

SourceSAGE·JournalJournal of Correctional Health Care·DateApr 1, 2009

Activation of the prefrontal cortex improves working memory

A study by IDIBAPS reveals that prefrontal cortex activation improves working memory by reinforcing parietal cortex activity, enhancing short-term visual information retention. This innovative view opens up new research avenues, particularly for understanding and treating diseases affecting working memory.

SourceIDIBAPS - Institut d'Investigacions Biomèdiques August Pi i Sunyer·JournalProceedings of the National Academy of Sciences·DateApr 1, 2009

Distinguishing single cells with nothing but light

Researchers at the University of Rochester have developed a novel optical technique called IRAM that enables rapid analysis of single human immune cells using only light. This technique allows for clear differences between two types of immune cells to be seen, providing new insights into cell activation and development.

SourceUniversity of Rochester·JournalApplied Optics·DateApr 1, 2009

A hot solution to bean sprout safety

A natural method of disinfecting mung bean seeds using hot water has been discovered, killing bacterial pathogens like Listeria monocytogenes without reducing germination rates. This method is suitable for organic production systems and could help prevent food poisoning outbreaks.

Seismology tip sheet for April

Researchers linked pre-historic seismic events on the San Andreas Fault to assess likelihood of future great ruptures. Analysis suggests several events similar to a historical earthquake occurred since A.D. 900 on the southern San Andreas fault.

SourceSeismological Society of America·JournalBulletin of the Seismological Society of America·DateApr 1, 2009

JCI online early table of contents: April 1, 2009

Researchers found that cannabinoids like THC have anticancer effects on human brain cancer cells by inducing autophagy. Additionally, lithium was shown to protect hippocampal nerve cells in mice treated with cranial radiation therapy, suggesting it may be a new approach to reducing long-term neurological side effects.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 1, 2009