Study suggests higher levels of omega-3 in diet are associated with better sleep
A randomised placebo-controlled study by the University of Oxford suggests that higher levels of omega-3 DHA, the group of long-chain fatty acids found in algae and seafood, are associated with better sleep. The researchers explored whether 16 weeks of daily 600 mg supplements of algal sources would improve the sleep of 362 children. The children who took part in the study were not selected for sleep problems, but were all struggling readers at a mainstream primary school. At the outset, the parents filled in a child sleep questionnaire, which revealed that four in ten of the children in the study suffered from regular sleep disturbances. Of the children rated as having poor sleep, the researchers fitted wrist sensors to 43 of them to monitor their movements in bed over five nights.
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Warfarin for atrial fibrillation does not worsen outcomes for patients with kidney disease
Although some research has suggested that the use of the anticoagulant warfarin for atrial fibrillation among patients with chronic kidney disease would increase the risk of death or stroke, a study that included more than 24,000 patients found a lower l-year risk of the combined outcomes of death, heart attack or stroke without a higher risk of bleeding, according to a study in the March 5 issue of JAMA. Juan Jesus Carrero, Ph.D., of the Karolinska Institutet, Stockholm, and colleagues examined outcomes associated with warfarin treatment in relation to kidney function among patients with established cardiovascular disease and atrial fibrillation.
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Plant extract hope for infant muscle disease
The research team have found that a plant pigment called quercetin - present in some fruits, vegetables, herbs and grains - could help to prevent damage to the nerves associated with the childhood form of motor neurone disease, spinal muscular atrophy (SMA). Their study is published in the Journal of Clinical Investigation. SMA, also known as 'floppy baby syndrome', is a leading genetic cause of death in children. It affects approximately one in 6,000 to 10,000 children and around half of children with the most severe form will die before the age of two. There is currently no cure for this kind of neuromuscular disorder.
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Detecting levels of antibiotics in blood paves the way to individualized treatment
A new methodology for rapidly measuring the level of antibiotic drug molecules in human blood serum has been developed, paving the way to applications within drug development and personalised medicine. The study, published in Nature Nanotechnology, describes the exploitation of a sensor for measuring the concentration of effective antibiotics in blood, giving an indication of their efficiency against disease causing pathogens, for instance multidrug resistant hospital "superbugs". This development could potentially give a far greater understanding of the effectiveness of drug dosages required for different individuals, reducing potential toxic effects, allowing personalised treatment for patients and leading to new insights into optimal clinical regimes, such as combination therapies.
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Researchers discover new strategies for the treatment of psoriasis
Almost ten years ago, the group led by Erwin Wagner, currently at the Spanish National Cancer Research Centre (CNIO), developed genetically modified mice showing symptoms very reminiscent to psoriasis. After publishing this discovery in Nature, the researchers decided to use this mouse model to study the underlying molecular pathways involved in disease development, and to look for innovative and efficient therapies. Now the group has discovered two possible novel treatments, based on existing pharmacological compounds, which are likely to cause fewer side effects.
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Strawberries lower cholesterol
A team of volunteers ate half a kilo of strawberries a day for a month to see whether it altered their blood parameters in any way. At the end of this unusual treatment, their levels of bad cholesterol and triglycerides reduced significantly, according to the analyses conducted by Italian and Spanish scientists. Several studies had already demonstrated the antioxidant capacity of strawberries, but now researchers from the Università Politecnica delle Marche (UNIVPM, Italy), together with colleagues from the Universities of Salamanca, Granada and Seville (Spain), conducted an analysis that revealed that these fruits also help to reduce cholesterol.
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Scientists unlock a 'microbial Pompeii'
An international team of researchers have discovered a 'microbial Pompeii' preserved on the teeth of skeletons around 1,000 years old. The key to the discovery is the dental calculus (plaque) which preserves bacteria and microscopic particles of food on the surfaces of teeth, effectively creating a mineral tomb for microbiomes. The research team discovered that the ancient human oral cavity carries numerous opportunistic pathogens and that periodontal disease is caused by the same bacteria today as in the past, despite major changes in human diet and hygiene.
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