Bacteria that cause pneumonic plague can evade our first-line defences, making it difficult for the body to fight infection. In fact, a signature of the plague is the lack of an inflammatory response. Now, scientists have discovered a way to protect against death following infection with plague bacteria, by using molecules that can mimic the pathogens. According to research published in the July issue of Microbiology, these molecules make antibiotics more effective and can even be used to protect against other diseases.
A huge rise in the numbers of UK residents travelling to malaria endemic areas, combined with a failure to use prevention measures, has significantly increased cases of imported falciparum malaria in the UK over the past 20 years, according to a study published on BMJ.com.
(Boston, MA)—Researchers from Boston University School of Medicine (BUSM) and Boston Medical Center (BMC) found that patients who disclose intimate partner violence (IPV) to their clinicians of any type did not experience serious harm. However, those who disclosed IPV in a primary care or obstetrics/gynecology setting received the most benefit. The findings, which appear in the Biomedical Central Public Health Journal, also conclude that disclosures made in an emergency department setting were more problematic from the patient's point of view.
Diversity among the ancestors of such marine creatures as clams, sand dollars and lobsters showed only a modest rise beginning 144 million years ago with no clear trend afterwards, according to an international team of researchers. This contradicts previous work showing dramatic increases beginning 248 million years ago and may shed light on future diversity.
Until now, it was commonly thought that colliding molecules get the shakes as the result of energy transfer solely from the smashing of the molecules, but some new research adds a second means by which colliding molecules become vibrationally excited--it is being called the "Tug o' War Mechanism."
The new experiment, transforming the textbook story, was performed in the lab of Richard Zare, chair of the Department of Chemistry at Stanford University. This work on energy transferring, or inelastic, collisions is featured in the July 3, 2008 issue of the journal Nature.
LIVERMORE, Calif. - Acoustic waves play many everyday roles - from communication between people to ultrasound imaging. Now the highest frequency acoustic waves in materials, with nearly atomic-scale wavelengths, promise to be useful probes of nanostructures such as LED lights.
However, detecting them isn't so easy.
Toronto, ON, Canada Low maternal vitamin D levels during pregnancy may affect primary tooth calcification, leading toenamel defects, which are a risk factor for early-childhood tooth decay. Today, during the 86th General Session of theInternational Association for Dental Research, investigators from the University of Manitoba (Winnipeg and Victoria) presentthe results of a study they conducted to determine the vitamin D status of pregnant women, the incidence of enameldefects and early-childhood tooth decay among their infants, and the relationship with pre-natal vitamin D levels.
Toronto, ON, Canada Diabetes mellitus is a metabolic disorder characterized by altered glucose tolerance and impairedlipid and carbohydrate metabolism, and is associated with a number of complications directly resulting from hyperglycemiainducedinflammation. Vascular changes in diabetes lead to increased risk of myocardial infarction and stroke due to atherosclerosis,retinopathy, end-stage renal disease, debilitating neuropathies, poor wound healing, enhanced risk of infection, andperiodontal disease.
Toronto, ON, Canada Dental caries, or tooth decay, continues to be the most prevalent infectious disease in the world,presenting significant public health challenges and socio-economic consequences. It leads to the loss of the hard tissues ofthe tooth, followed by inflammation and necrosis of the subjacent dental pulp. In the U.S. alone, over 20 million dental restorationsare placed each year, with failure rates of up to 60%. Hence, there exists a critical need for better biologic therapeuticsto restore the damaged dentin-pulp complex to its original form and function.
MISSION VIEJO, Calif. (Aug. 24, 2017) - Consuming one fresh avocado per day may lead to improved cognitive function in healthy older adults due to increased lutein levels in the brain and eye, according to new research published in the journal Nutrients. The research tracked how 40 healthy adults ages 50 and over who ate one fresh avocado a day for six months experienced a 25% increase in lutein levels in their eyes and significantly improved working memory and problem-solving skills.