@article{JonscherFlemmingSchmittetal.2018, author = {Jonscher, Ernst and Flemming, Sven and Schmitt, Marius and Sabitzki, Ricarda and Reichard, Nick and Birnbaum, Jakob and Bergmann, B{\"a}rbel and H{\"o}hn, Katharina and Spielmann, Tobias}, title = {PfVPS45 Is Required for Host Cell Cytosol Uptake by Malaria Blood Stage Parasites}, series = {Cell host \& microbe}, volume = {25}, journal = {Cell host \& microbe}, number = {1}, publisher = {Cell Press}, address = {Cambridge}, issn = {1931-3128}, doi = {10.1016/j.chom.2018.11.010}, pages = {166 -- 173}, year = {2018}, abstract = {During development in human erythrocytes, the malaria parasite Plasmodium falciparum internalizes a large part of the cellular content of the host cell. The internalized cytosol, consisting largely of hemoglobin, is transported to the parasite's food vacuole where it is degraded, providing nutrients and space for growth. This host cell cytosol uptake (HCCU) is crucial for parasite survival but the parasite proteins mediating this process remain obscure. Here, we identify P. falciparum VPS45 as an essential factor in HCCU. Conditional inactivation of PfVPS45 led to an accumulation of host cell cytosol-filled vesicles within the parasite and inhibited the delivery of hemoglobin to the parasite's digestive vacuole, resulting in arrested parasite growth. A proportion of these HCCU vesicle intermediates was positive for phosphatidylinositol 3-phosphate, suggesting endosomal characteristics. Thus PfVPS45 provides insight into the elusive machinery of the ingestion pathway in a parasite that contains an endolysosomal system heavily repurposed for protein secretion.}, language = {en} } @article{SchwingshacklRuzanskaAntonetal.2018, author = {Schwingshackl, Lukas and Ruzanska, Ulrike Alexandra and Anton, Verena and Wallroth, Raphael and Ohla, Kathrin and Knueppel, Sven and Schulze, Matthias Bernd and Pischon, Tobias and Deutschbein, Johannes and Schenk, Liane and Warschburger, Petra and Harttig, Ulrich and Boeing, Heiner and Bergmann, Manuela M.}, title = {The NutriAct Family Study: a web-based prospective study on the epidemiological, psychological and sociological basis of food choice}, series = {BMC public health}, volume = {18}, journal = {BMC public health}, publisher = {BMC}, address = {London}, issn = {1471-2458}, doi = {10.1186/s12889-018-5814-x}, pages = {12}, year = {2018}, abstract = {Background: Most studies on food choice have been focussing on the individual level but familial aspects may also play an important role. This paper reports of a novel study that will focus on the familial aspects of the formation of food choice among men and women aged 50-70 years by recruiting spouses and siblings (NutriAct Family Study; NFS). Discussion: Until August 4th 2017, 4783 EPIC-Participants were contacted by mail of which 446 persons recruited 2 to 5 family members (including themselves) resulting in 1032 participants, of whom 82\% had started answering or already completed the questionnaires. Of the 4337 remaining EPIC-participants who had been contacted, 1040 (24\%) did not respond at all, and 3297 (76\%) responded but declined, in 51\% of the cases because of the request to recruit at least 2 family members in the respective age range. The developed recruitment procedures and web-based methods of data collection are capable to generate the required study population including the data on individual and inter-personal determinants which will be linkable to food choice. The information on familial links among the study participants will show the role of familial traits in midlife for the adoption of food choices supporting healthy aging.}, language = {en} }