Direct hemoperfusion with polymyxin B (PMX-DHP) is an extracorporeal treatment to add to conventional therapy during unresponsive endotoxic septic shock. So far, only heparin has been used as an anticoagulant during polymyxin B therapy. We present a case report of a postsurgical septic patient treated with 2 cycles of PMX-DHP using citrate anticoagulation. Monitoring of serum calcium, postcartridge calcium, and acid-base balance was performed. The treatments were accomplished without complications. To our knowledge, this is the first published report on the use of citrate anticoagulation during PMX-DHP. We conclude that citrate anticoagulation is feasible during hemoperfusion therapy in patients with increased hemorrhagic risk.
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http://dx.doi.org/10.1213/XAA.0000000000000392 | DOI Listing |
Sci Adv
January 2025
Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
Oxygen controls most metazoan metabolism, yet in mammals, tissue O levels vary widely. While extensive research has explored cellular responses to hypoxia, understanding how cells respond to physiologically high O levels remains uncertain. To address this problem, we investigated respiratory epithelia as their contact with air exposes them to some of the highest O levels in the body.
View Article and Find Full Text PDFBMC Plant Biol
January 2025
College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, 530004, China.
Sugarcane tops silage (STS), as a source of roughage for ruminants, is rich in water-soluble carbohydrate (WSC) content, which significantly affects silage quality. Citric acid (CA) is a low-cost natural antimicrobial agent that can inhibit undesirable microbes and improve silage quality. The objectives of this study were to investigate the effects of CA on the chemical composition, fermentation quality, microbial communities, and metabolic pathways of STS with high and low WSC contents before or after aerobic exposure.
View Article and Find Full Text PDFNat Commun
January 2025
NMR-based Structural Biology, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.
Membrane bound histidine kinases (HKs) are ubiquitous sensors of extracellular stimuli in bacteria. However, a uniform structural model is still missing for their transmembrane signaling mechanism. Here, we used solid-state NMR in conjunction with crystallography, solution NMR and distance measurements to investigate the transmembrane signaling mechanism of a paradigmatic citrate sensing membrane embedded HK, CitA.
View Article and Find Full Text PDFJ Food Sci
January 2025
Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA.
As consumer awareness grows regarding the environmental and health impacts of animal-based products, plant-based alternatives are gaining popularity in developed countries. Plant-based proteins, like soy protein isolate (SPI), are valued for their sustainability and ability to complement animal proteins. SPI is commonly used in plant-based yogurts due to its high-quality protein, strong gelling capacity, and support for lactic acid bacteria (LAB) growth.
View Article and Find Full Text PDFInt J Lab Hematol
January 2025
Hematology Biology, AP-HP Hôpital Ambroise Paré, Boulogne and Versailles-Saint Quentin-Paris Saclay University, Versailles, France.
Introduction: For complete blood count, ethylenediaminetetraacetic acid (EDTA) is universally used and has been recognized as the most robust anticoagulant. However, it may lead to pseudothrombocytopenia (PTCT), due to the formation of platelet clumps, which is currently followed by resampling on sodium citrate. Other possible anticoagulants are citrate theophylline adenosine dipyridamole (CTAD) and MgSO.
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