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Parasitic flatworms infecting thorny skate, Amblyraja radiata: Infection by the monogeneans Acanthocotyle verrilli and Rajonchocotyle emarginata in Svalbard. KU Leuven

Raquel Hermans, Maarten Vanhove, Oleg Ditrich, Tomáš Tyml, Milan Gelnar, Tom Artois, Nikol Kmentová
Parasite diversity above the Arctic circle remains understudied even for commercially valuable host taxa. Thorny skate, Amblyraja radiata, is a common bycatch species with a growing commercial value. Its natural range covers both sides of the North Atlantic including the Arctic zone. Svalbard is a Norwegian archipelago located on the northwest corner of the Barents Shelf which sustains a spectacular species diversity. So far, several monogenean ...

A chip-based 128-channel potentiostat for high-throughput studies of bioelectrochemical systems: Optimal electrode potentials for anodic biofilms KU Leuven

Tom Molderez, Antonin Prévoteau, Frederik Ceyssens, Marian Verhelst, Korneel Rabaey
The presence of microorganisms performing extracellular electron transfer has been established in many environments. Research to determine their role is moving slowly due to the high cost of potentiostats and the variance of data with small number of replicates. Here, we present a 128-channel potentiostat, connected to a 128 gold electrode array. Whereas the system is able to perform simultaneously 128 (bio)electrochemical measurements with an ...

Curing of cocoa beans: fine-scale monitoring of the starter cultures applied and metabolomics of the fermentation and drying steps Vrije Universiteit Brussel

Dario Van de Voorde
Starter culture-initiated cocoa fermentation processes can be applied to improve the quality of cured cocoa beans. However, an accurate monitoring of the microbial strains inoculated in fresh cocoa pulp-bean mass to assess their contribution to the cocoa bean curing process is still lacking. In the present study, eight different cocoa fermentation processes were carried out with Trinitario cocoa in vessels in Costa Rica to assess the ...

Thermal inactivation of Listeria monocytogenes in the Shaka agitated reciprocal retort: Influence of food matrix rheology and fat content KU Leuven

Davy Verheyen, Ozan Altin, Dagbjørn Skipnes, Ferruh Erdogdu, Torstein Skåra, Jan Van Impe
The effect of food matrix rheology and fat content on thermal inactivation of Listeria monocytogenes in the Shaka agitated retort (final retort temperatures of 59, 64, and 69°C) was investigated using four fish-based artificial food model systems: low-viscosity liquid (liquid), high-viscosity liquid (xanthan), and emulsions containing 10% and 20% fat (emulsion 10% and emulsion 20%). Model system rheology, quantified by the consistency index K ...

High Aedes spp. larval indices in Kinshasa, Democratic Republic of Congo Institute of Tropical Medicine

Francis Wat'senga Tezzo, Sylvie Fasine, Emile Manzambi Zola, Maria Del Carmen Marquetti, Guillaume Binene-Mbuka, Gillon Ilombe, Richard Mundeke Takasongo, Nathalie Smitz, Juan Andre Bisset, Wim Van Bortel, et al.

BACKGROUND: Dengue, yellow fever, chikungunya and Zika are among the most important emerging infectious vector-borne diseases worldwide. In the Democratic Republic of Congo (DRC), increases in cases of dengue and outbreaks of yellow fever and chikungunya have been reported since 2010. The main vectors of these arboviruses, Aedes aegypti and Aedes albopictus, have been reported in DRC, but there is a lack of detailed information on their ...

Global distribution, host range and prevalence of Trypanosoma vivax: a systematic review and meta-analysis Institute of Tropical Medicine

Eyerusalem Fetene, Samson Leta, Fikru Regassa, Philippe Büscher

BACKGROUND: Trypanosomosis caused by Trypanosoma vivax is one of the diseases threatening the health and productivity of livestock in Africa and Latin America. Trypanosoma vivax is mainly transmitted by tsetse flies; however, the parasite has also acquired the ability to be transmitted mechanically by hematophagous dipterans. Understanding its distribution, host range and prevalence is a key step in local and global efforts to control the ...

Etiology of lactic acidosis in malaria KU Leuven

Hendrik Possemiers, Leen Vandermosten, Philippe Van den Steen
Lactic acidosis and hyperlactatemia are common metabolic disturbances in patients with severe malaria. Lactic acidosis causes physiological adverse effects, which can aggravate the outcome of malaria. Despite its clear association with mortality in malaria patients, the etiology of lactic acidosis is not completely understood. In this review, the possible contributors to lactic acidosis and hyperlactatemia in patients with malaria are discussed. ...

Bacterial Vivisection: How Fluorescence-Based Imaging Techniques Shed a Light on the Inner Workings of Bacteria KU Leuven

Alexander Cambré, Abram Aertsen
The rise in fluorescence-based imaging techniques over the past 3 decades has improved the ability of researchers to scrutinize live cell biology at increased spatial and temporal resolution. In microbiology, these real-time vivisections structurally changed the view on the bacterial cell away from the "watery bag of enzymes" paradigm toward the perspective that these organisms are as complex as their eukaryotic counterparts. Capitalizing on the ...

Successful Outcome of Disseminated Fusarium musae Fungemia with Skin Localization Treated with Liposomal Amphotericin B and Voriconazole in a Patient with Acute Myeloid Leukemia KU Leuven

Vanessa Verbeke, Thibault Bourgeois, Tom Lodewyck, Jens Van Praet, Katrien Lagrou, Marijke Reynders, Eric Nulens
Fusarium spp. may cause invasive disseminated infections in immunocompromised patients, associated with significant morbidity and mortality. We describe a case of disseminated fusariosis with fungemia and skin localization caused by Fusarium musae in a patient with acute myeloid leukemia successfully treated using liposomal amphotericin B and voriconazole.