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Looking to the ocean for malaria solutions

Microciona_forwebResearchers have found heparin-like molecules with reduced blood-thinning activity that can be used for therapeutic approaches against malaria – in sea cucumbers, red algae and marine sponges.

Until now, heparin – which has been shown to have antimalarial activity and specific binding affinity for red blood cells infected with the Plasmodium malaria parasite – has not been explored for anti-malarial drug solutions due to its powerful anticoagulating activity. While heparin is able to block the cell adhesion of infected red blood cells to various host receptors and disrupt the growth of the pathogen, its downfall is that the quantities needed for malaria treatment would result in too much blood-thinning and bleeding. There’s also the potential risk of infection, since polysaccharides such as heparin tend to be obtained from mammals.

Tracking bacterial virulence: global modulators as indicators

Barcelona researchers and their collaborators have defined new bacterial virulence markers that could help track and prevent outbreaks of E. coli.

Most E. coli bacterial strains occur naturally in the human gut and pose no harm to health, except for particular serotypes that always hit the news because they cause food poisoning that can become life threatening in certain patients. One such serotype is O104:H4, that caused a large outbreak with a high prevalence of associated hemolytic–uremic syndrome (HUS) in Germany in 2011, a newly emerged strain that caused the highest frequency of HUS and death from E. coli ever recorded.

Leica’s European Tour comes to IBEC

Leica workshopThis week, IBEC scientists and other staff from the PCB are enjoying some special workshops given by Leica.

From Tuesday to Thursday IBEC is the host institution in Spain of Leica’s European Tour 2016, which allows researchers to get hands-on with some of the company’s most cutting-edge microscopes and other equipment.

The technologies being presented and demonstrated at this week’s workshops are the DMi8 inverted microscope with Fluorescence Recovery After Photobleaching (FRAP) module, their SP8 X Confocal Microscope with WLL and Hybrid Detectors, HyVolution confocal super-resolution imaging, and the Leica TCS SP8 with Digital LightSheet. Researchers are able to test their own samples in these pieces of equipment.

The enzymes that enable bacteria to make themselves at home

torrentsFig2_webIBEC researchers have come a step closer to understanding how bacteria can cause chronic infections by identifying the key enzymes that allow them to create the right conditions for infection.

When P. aeruginosa bacteria cause chronic lung infections in patients with cystic fibrosis or chronic obstructive pulmonary disease (COPD), it means they have been able to form a mature biofilm in situ that lets them grow and adapt. This biofilm not only enhances cell-to-cell communication for the bacteria, thus allowing the infection to increase and thrive, but it also increases the chances of developing new antibiotic resistance and escape from the body’s immune system.