A new study published in The Lancet suggests that dementia prevalence in less developed countries may be significantly higher than initially estimated. The study used a unique diagnostic method to assess dementia cases in 15 sites across 11 countries, revealing higher prevalence rates compared to conventional criteria.
Biochemists at the University of Texas Medical School have found evidence that pre-eclampsia may be an autoimmune disease, with autoantibodies activating an angiotensin receptor that causes artery constriction. This could lead to novel diagnostic and therapeutic possibilities for the condition.
SourceUniversity of Texas Health Science Center at Houston·JournalNature Medicine·DateJul 27, 2008
Researchers at Harvard University developed a plasmonic collimator that reduces beam divergence by 25 times, enabling applications in photonics and communications. The innovation opens doors to edge-emitting and surface-emitting semiconductor lasers operating at various wavelengths.
SourceHarvard University·JournalNature Photonics·DateJul 27, 2008
Scientists studying bacteria at Evolution Canyon found that ecotypes on hot and cool slopes have distinct fatty acid compositions, enabling them to cope with temperature differences.
SourceMicrobiology Society·JournalMicrobiology·DateJul 27, 2008
Kestrel 3000 Pocket Weather Meter
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Researchers have found a way to limit immune system's response and reduce inflammation in lungs caused by influenza, using CD200R receptor. Mice treated with mimic of CD200 or antibody to stimulate CD200R showed reduced weight loss and inflammation.
SourceImperial College London·JournalNature Immunology·DateJul 27, 2008
A new study uses next-generation DNA sequencing to uncover genetic signatures of typhoid fever, allowing for improved diagnosis, tracking of disease spread, and potential design of new vaccines. The technology also enables researchers to identify individual organisms causing outbreaks and target vaccination campaigns more effectively.
SourceWellcome Trust Sanger Institute·JournalNature Genetics·DateJul 27, 2008
Researchers found that angiotensin receptor blockers significantly decrease the occurrence and progression of dementia in patients with Alzheimer's disease or those at risk. Patients taking ARBs also showed a lower chance of developing delirium, nursing home admissions, or death.
Research suggests dementia prevalence in developing world is closer to developed countries' rates, with potential for improved health and social care systems.
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Researchers have induced pre-eclampsia in mice by injecting human autoantibodies, demonstrating a potential pathway for the disorder. Blocking these autoantibodies prevented the development of pre-eclampsia in mice, suggesting a new approach to diagnosis and treatment.
SourceMarch of Dimes Foundation·JournalNature Medicine·DateJul 27, 2008
A vaccine for tularemia, caused by Francisella tularensis, is being developed as the disease's potential as a bioterrorism agent has increased. Researchers have made progress in understanding the bacterium's pathogenesis and identifying potential targets for a vaccine.
SourceMicrobiology Society·JournalJournal of Medical Microbiology·DateJul 27, 2008