Whilst mefloquine has traditionally been considered an effective prevention for long-term malaria chemoprophylaxis, research reported in the open access publication, Malaria Journal, suggests that US military physicians should ensure careful screening processes prior to prescribing and dispensing the drug. Ignoring such contraindications may lead to an increased incidence of psychiatric and neurological disorders.
An epidemiological study from the US Army Center for Health Promotion and Preventive Medicine, led by Remington Nevin, used military medical surveillance and pharmacosurveillance databases to identify contraindications to mefloquine use among a cohort of 11,725 active duty U.S. military personnel, recently deployed to Afghanistan.
The study indicates that 9.6 percent of service members deployed to Afghanistan in early 2007 had evidence of psychiatric, medical or pharmacological contraindications to mefloquine, the primary drug used to protect service members from malaria, which is endemic there. It was also reported that females were twice as likely as males to have a contraindication.
This work underscores the importance of proper systematic screening prior to prescribing and dispensing mefloquine, and the need to provide alternatives to mefloquine suitable for long-term administration among deployed U.S. military personnel.
“Mefloquine is generally considered safe when prescribed and dispensed appropriately, and when used as directed. However, this study provides evidence that mefloquine is not a suitable option for a significant number of deploying U.S. servicemembers.
This study points to the need for enhanced vigilance during pre-deployment medical screening to ensure the appropriate use of this medication, particularly among females, and underscores the need for continued investment in research and development of alternatives to mefloquine that retain the advantages in compliance of a weekly medication.”
The personality factor: How to foster the sharing of research data
06.09.2017 | ZBW – Leibniz-Informationszentrum Wirtschaft
Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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22.09.2017 | Life Sciences
22.09.2017 | Medical Engineering
22.09.2017 | Physics and Astronomy