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https://www.readbyqxmd.com/read/29339443/immune-system-the-seventh-sense
#1
REVIEW
Jonathan Kipnis
The brain is our computing machine that integrates stimuli from the environment and orchestrates responses to these stimuli. Here, I propose that the defining role of the immune system is to sense microorganisms and to inform the brain about them.
January 16, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29279610/neuroimmunology-in-2017-the-central-nervous-system-privileged-by-immune-connections
#2
Jonathan Kipnis, Anthony J Filiano
No abstract text is available yet for this article.
December 27, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/29274254/french-lyophilized-plasma-versus-fresh-frozen-plasma%C3%A2-for-the-initial-management-of-trauma-induced-coagulopathy-a-randomized-open-label-trial
#3
Delphine Garrigue, Anne Godier, Alexandre Glacet, Julien Labreuche, Eric Kipnis, Camille Paris, Alain Duhamel, Eric Resch, Anne Bauters, François Machuron, Pascale Renom, Patrick Goldstein, Benoit Tavernier, Anne Sailliol, Sophie Susen
BACKGROUND: Guidelines recommend to begin haemostatic resuscitation immediately in trauma patients. We aimed to investigate if French Lyophilised Plasma (FLyP) was more effective than Fresh Frozen Plasma (FFP) for the initial management of the trauma-induced-coagulopathy. METHODS: In an open-label, phase 3, randomized trial (NCT02750150), we enrolled adult trauma patients requiring an emergency pack of 4 plasma units within 6 hours of injury. We randomly assigned patients to receive 4-FLyP units or 4-FFP units...
December 23, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29240656/hospital-acquired-pressure-injury-risk-adjusted-comparisons-in-an-integrated-healthcare-delivery-system
#4
June Rondinelli, Stephen Zuniga, Patricia Kipnis, Lina Najib Kawar, Vincent Liu, Gabriel J Escobar
BACKGROUND: Although healthcare organizations have decreased hospital-acquired pressure injury (HAPI) rates, HAPIs are not eliminated, driving further examination in both nursing and health services research. OBJECTIVE: The objective was to describe HAPI incidence, risk factors, and risk-adjusted hospital variation within a California integrated healthcare system. METHODS: Inpatient episodes were included in this retrospective cohort if patients were hospitalized between January 1, 2013, and June 30, 2015...
January 2018: Nursing Research
https://www.readbyqxmd.com/read/29191391/biphasic-lung-injury-during-streptococcus-pneumoniae-infection-in-a-murine-model
#5
A Prevotat, C Rouyer, P Gosset, E Kipnis, K Faure, B Guery
OBJECTIVES: Streptococcus pneumoniae is the leading cause of community-acquired pneumonia. We aimed to analyze the epithelial response to S. pneumoniae-induced lung injury. METHODS: Using an in vitro model with 16HBE cells and experimental in vivo murine model of acute lung injury, we analyzed the epithelial response to S. pneumoniae. Lung epithelial cell monolayers were exposed to S. pneumoniae and permeability was assessed by transepithelial resistance (TER) measurement and organization and expression of junction proteins...
November 27, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/29165489/perylenediimide-based-glycoclusters-as-high-affinity-ligands-of-bacterial-lectins-synthesis-binding-studies-and-anti-adhesive-properties
#6
Marion Donnier-Maréchal, Nicolas Galanos, Teddy Grandjean, Yoann Pascal, Ding-Kun Ji, Lei Dong, Emilie Gillon, Xiao-Peng He, Anne Imberty, Eric Kipnis, Rodrigue Dessein, Sébastien Vidal
The synthesis of eight perylenediimide-based glycoclusters was readily performed from hexa- and tetra-propargylated cores through azide-alkyne "click" conjugation. Variations in the carbohydrate epitope (Glc, Gal, Man, Fuc) and the linker arm provided molecular diversity. Interactions with LecA and LecB, two proteins involved in the adhesion of Pseudomonas aeruginosa to host tissues, were evaluated by microcalorimetry (ITC). In both cases high affinities were obtained with Kd values in the nanomolar range. Further evaluation of their anti-adhesive properties using cultured epithelial cells demonstrated their potent anti-adhesive activities against Pseudomonas aeruginosa with only 30-40% residual adhesion observed...
November 22, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29155054/hospital-acquired-pneumonia-in-icu
#7
Marc Leone, Lila Bouadma, Bélaïd Bouhemad, Olivier Brissaud, Stéphane Dauger, Sébastien Gibot, Sami Hraiech, Boris Jung, Eric Kipnis, Yoann Launey, Charles-Edouard Luyt, Dimitri Margetis, Fabrice Michel, Djamel Mokart, Philippe Montravers, Antoine Monsel, Saad Nseir, Jérôme Pugin, Antoine Roquilly, Lionel Velly, Jean-Ralph Zahar, Rémi Bruyère, Gérald Chanques
The French Society of Anesthesia and Intensive Care Medicine and the French Society of Intensive Care edited guidelines focused on hospital-acquired pneumonia (HAP) in intensive care unit (ICU). The goal of 16 French-speaking experts was to produce a framework enabling an easier decision-making process for intensivists. The guidelines were related to 3 specific areas related to HAP (prevention, diagnosis and treatment) in 4 identified patient populations (COPD, neutropenia, postoperative and pediatric). The literature analysis and the formulation of the guidelines were conducted according to the Grade of Recommendation Assessment, Development and Evaluation methodology...
November 15, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/29141694/the-icu-diary-study-prospective-multicenter-comparative-study-of-the-impact-of-an-icu-diary-on-the-wellbeing-of-patients-and-families-in-french-icus
#8
Maïté Garrouste-Orgeas, Cécile Flahault, Léonor Fasse, Stéphane Ruckly, Nora Amdjar-Badidi, Laurent Argaud, Julio Badie, Amélie Bazire, Naike Bige, Eric Boulet, Lila Bouadma, Cédric Bretonnière, Bernard Floccard, Alain Gaffinel, Xavier de Forceville, Hubert Grand, Rebecca Halidfar, Olfa Hamzaoui, Mercé Jourdain, Paul-Henri Jost, Eric Kipnis, Audrey Large, Alexandre Lautrette, Olivier Lesieur, Virginie Maxime, Emmanuelle Mercier, Jean Paul Mira, Yannick Monseau, Erika Parmentier-Decrucq, Jean-Philippe Rigaud, Antoine Rouget, François Santoli, Georges Simon, Fabienne Tamion, Nathalie Thieulot-Rolin, Marina Thirion, Sandrine Valade, Isabelle Vinatier, Christel Vioulac, Sebastien Bailly, Jean-François Timsit
BACKGROUND: Post-intensive care syndrome includes the multiple consequences of an intensive care unit (ICU) stay for patients and families. It has become a new challenge for intensivists. Prevention programs have been disappointing, except for ICU diaries, which report the patient's story in the ICU. However, the effectiveness of ICU diaries for patients and families is still controversial, as the interpretation of the results of previous studies was open to criticism hampering an expanded use of the diary...
November 15, 2017: Trials
https://www.readbyqxmd.com/read/29035176/comparing-hospital-processes-and-outcomes-in-california-medicare-beneficiaries-simulation-prompts-reconsideration
#9
Gabriel J Escobar, Jennifer M Baker, Benjamin J Turk, David Draper, Vincent Liu, Patricia Kipnis
INTRODUCTION: This article is not a traditional research report. It describes how conducting a specific set of benchmarking analyses led us to broader reflections on hospital benchmarking. We reexamined an issue that has received far less attention from researchers than in the past: How variations in the hospital admission threshold might affect hospital rankings. Considering this threshold made us reconsider what benchmarking is and what future benchmarking studies might be like. Although we recognize that some of our assertions are speculative, they are based on our reading of the literature and previous and ongoing data analyses being conducted in our research unit...
2017: Permanente Journal
https://www.readbyqxmd.com/read/29018177/a-challenge-to-unqualified-medical-confidentiality
#10
Alexander Bozzo
Medical personnel sometimes face a seeming conflict between a duty to respect patient confidentiality and a duty to warn or protect endangered third parties. The conventional answer to dilemmas of this sort is that, in certain circumstances, medical professionals have an obligation to breach confidentiality. Kenneth Kipnis has argued, however, that the conventional wisdom on the nature of medical confidentiality is mistaken. Kipnis argues that the obligation to respect patient confidentiality is unqualified or absolute, since unqualified policies can save more lives in the long run...
October 10, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28992059/the-human-naip-nlrc4-inflammasome-senses-the-pseudomonas-aeruginosa-t3ss-inner-rod-protein
#11
Grandjean Teddy, Boucher Anne, Thepaut Marion, Monlezun Laura, Guery Benoit, Faudry Eric, Kipnis Eric, Dessein Rodrigue
While NLRC4-dependent sensing of intracellular Gram-negative pathogens such as Salmonella Typhimurium is a beneficial host response, NLRC4-dependent sensing of the Pseudomonas aeruginosa type 3 secretion system (T3SS) has been shown to be involved in pathogenicity. In mice, different pathogen-associated microbial patterns are sensed by the combination of the NLRC4-inflammasome with different members of neuronal apoptosis inhibitory protein (NAIPs). NAIP2 is involved in sensing PscI, an inner-rod protein of the P...
August 28, 2017: International Immunology
https://www.readbyqxmd.com/read/28971799/human-and-nonhuman-primate-meninges-harbor-lymphatic-vessels-that-can-be-visualized-noninvasively-by-mri
#12
Martina Absinta, Seung-Kwon Ha, Govind Nair, Pascal Sati, Nicholas J Luciano, Maryknoll Palisoc, Antoine Louveau, Kareem A Zaghloul, Stefania Pittaluga, Jonathan Kipnis, Daniel S Reich
Here, we report the existence of meningeal lymphatic vessels in human and nonhuman primates (common marmoset monkeys) and the feasibility of noninvasively imaging and mapping them in vivo with high-resolution, clinical MRI. On T2-FLAIR and T1-weighted black-blood imaging, lymphatic vessels enhance with gadobutrol, a gadolinium-based contrast agent with high propensity to extravasate across a permeable capillary endothelial barrier, but not with gadofosveset, a blood-pool contrast agent. The topography of these vessels, running alongside dural venous sinuses, recapitulates the meningeal lymphatic system of rodents...
October 3, 2017: ELife
https://www.readbyqxmd.com/read/28937879/advax4-delta-inulin-combination-adjuvant-together-with-ecmx-a-fusion-construct-of-three-protective-mtb-antigens-induces-a-potent-th1-immune-response-and-protects-mice-against-mycobacterium-tuberculosis-infection
#13
Bruno de Paula Oliveira Santos, Monalisa Martins Trentini, Renato Beilner Machado, Mara Rúbia Nunes Celes, André Kipnis, Nikolai Petrovsky, Ana Paula Junqueira-Kipnis
Tuberculosis (TB) remains a main public health concern and 10.4 million new cases occurred in 2015 around the world. BCG is the only approved vaccine against TB, but has variable efficacy and new vaccines are needed. We developed two new mTB vaccine candidates based on the recombinant fusion proteins, rCMX and rECMXformulated with Advax4, a new combination adjuvant combining delta inulin, CpG oligonucleotide and murabutide. When BALB/c mice were immunized three times intramuscularly with these vaccine formulationsInjection of Advax4 alone increased the percentage of lymphatic endothelial cells and activated macrophages (F480/CD11b(+)) in the draining lymph nodes consistent with a chemotactic adjuvant effect...
September 22, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28884021/genomic-epidemiology-of-a-national-outbreak-of-post-surgical-mycobacterium-abscessus-wound-infections-in-brazil
#14
Izzy Everall, Christiane Lourenço Nogueira, Josephine M Bryant, Leonor Sánchez-Busó, Erica Chimara, Rafael da Silva Duarte, Jesus Pais Ramos, Karla Valéria Batista Lima, Maria Luíza Lopes, Moises Palaci, Andre Kipnis, Fernanda Monego, R Andres Floto, Julian Parkhill, Sylvia Cardoso Leão, Simon R Harris
An epidemic of post-surgical wound infections, caused by a non-tuberculous mycobacterium, has been on-going in Brazil. It has been unclear whether one or multiple lineages are responsible and whether their wide geographical distribution across Brazil is due to spread from a single point source or is the result of human-mediated transmission. 188 isolates, collected from nine Brazilian states, were whole genome sequenced and analysed using phylogenetic and comparative genomic approaches. The isolates from Brazil formed a single clade, which was estimated to have emerged in 2003...
May 2017: Microbial Genomics
https://www.readbyqxmd.com/read/28862640/understanding-the-functions-and-relationships-of-the-glymphatic-system-and-meningeal-lymphatics
#15
REVIEW
Antoine Louveau, Benjamin A Plog, Salli Antila, Kari Alitalo, Maiken Nedergaard, Jonathan Kipnis
Recent discoveries of the glymphatic system and of meningeal lymphatic vessels have generated a lot of excitement, along with some degree of skepticism. Here, we summarize the state of the field and point out the gaps of knowledge that should be filled through further research. We discuss the glymphatic system as a system that allows CNS perfusion by the cerebrospinal fluid (CSF) and interstitial fluid (ISF). We also describe the recently characterized meningeal lymphatic vessels and their role in drainage of the brain ISF, CSF, CNS-derived molecules, and immune cells from the CNS and meninges to the peripheral (CNS-draining) lymph nodes...
September 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28835289/prediction-of-recurrent-clostridium-difficile-infection-using-comprehensive-electronic-medical-records-in-an-integrated-healthcare-delivery-system
#16
Gabriel J Escobar, Jennifer M Baker, Patricia Kipnis, John D Greene, T Christopher Mast, Swati B Gupta, Nicole Cossrow, Vinay Mehta, Vincent Liu, Erik R Dubberke
BACKGROUND Predicting recurrent Clostridium difficile infection (rCDI) remains difficult. METHODS: We employed a retrospective cohort design. Granular electronic medical record (EMR) data had been collected from patients hospitalized at 21 Kaiser Permanente Northern California hospitals. The derivation dataset (2007-2013) included data from 9,386 patients who experienced incident CDI (iCDI) and 1,311 who experienced their first CDI recurrences (rCDI). The validation dataset (2014) included data from 1,865 patients who experienced incident CDI and 144 who experienced rCDI...
October 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28777196/adaptation-of-the-acute-organ-failure-score-for-use-in-a-medicare-population
#17
MULTICENTER STUDY
Katherine R Courtright, Scott D Halpern, Brian Bayes, Michael O Harhay, Eli Raneses, Patricia Kipnis, Gabriel J Escobar, Meeta Prasad Kerlin
OBJECTIVES: Without widely available physiologic data, a need exists for ICU risk adjustment methods that can be applied to administrative data. We sought to expand the generalizability of the Acute Organ Failure Score by adapting it to a commonly used administrative database. DESIGN: Retrospective cohort study. SETTING: One hundred fifty-one hospitals in Pennsylvania. PATIENTS: A total of 90,733 ICU admissions among 77,040 unique patients between January 1, 2009, and December 1, 2009, in the Medicare Provider Analysis and Review database...
November 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28717161/development-and-characterization-of-a-novel-prox1-egfp-lymphatic-and-schlemm-s-canal-reporter-rat
#18
Eunson Jung, Daniel Gardner, Dongwon Choi, Eunkyung Park, Young Jin Seong, Sara Yang, Jorge Castorena-Gonzalez, Antoine Louveau, Zhao Zhou, Gene K Lee, David P Perrault, Sunju Lee, Maxwell Johnson, George Daghlian, Maria Lee, Yeo Jin Hong, Yukinari Kato, Jonathan Kipnis, Michael J Davis, Alex K Wong, Young-Kwon Hong
The lymphatic system plays a key role in tissue fluid homeostasis, immune cell trafficking, and fat absorption. We previously reported a bacterial artificial chromosome (BAC)-based lymphatic reporter mouse, where EGFP is expressed under the regulation of the Prox1 promoter. This reporter line has been widely used to conveniently visualize lymphatic vessels and other Prox1-expressing tissues such as Schlemm's canal. However, mice have a number of experimental limitations due to small body size. By comparison, laboratory rats are larger in size and more closely model the metabolic, physiological, and surgical aspects of humans...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645736/liver-transplantation-in-the-most-severely-ill-cirrhotic-patients-a-multicenter-study-in-acute-on-chronic-liver-failure-grade-3
#19
Florent Artru, Alexandre Louvet, Isaac Ruiz, Eric Levesque, Julien Labreuche, Jose Ursic-Bedoya, Guillaume Lassailly, Sebastien Dharancy, Emmanuel Boleslawski, Gilles Lebuffe, Eric Kipnis, Philippe Ichai, Audrey Coilly, Eleonora De Martin, Teresa Maria Antonini, Eric Vibert, Samir Jaber, Astrid Herrerro, Didier Samuel, Alain Duhamel, Georges-Philippe Pageaux, Philippe Mathurin, Faouzi Saliba
BACKGROUND & AIMS: Liver transplantation (LT) for the most severely ill patients with cirrhosis, with multiple organ dysfunction (accurately assessed by the acute-on-chronic liver failure [ACLF] classification) remains controversial. We aimed to report the results of LT in patients with ACLF grade 3 and to compare these patients to non-transplanted patients with cirrhosis and multiple organ dysfunction as well as to patients transplanted with lower ACLF grade. METHODS: All patients with ACLF-3 transplanted in three liver intensive care units (ICUs) were retrospectively included...
October 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28636961/myeloid-cells-in-the-central-nervous-system
#20
REVIEW
Jasmin Herz, Anthony J Filiano, Ashtyn Smith, Nir Yogev, Jonathan Kipnis
The central nervous system (CNS) and its meningeal coverings accommodate a diverse myeloid compartment that includes parenchymal microglia and perivascular macrophages, as well as choroid plexus and meningeal macrophages, dendritic cells, and granulocytes. These myeloid populations enjoy an intimate relationship with the CNS, where they play an essential role in both health and disease. Although the importance of these cells is clearly recognized, their exact function in the CNS continues to be explored. Here, we review the subsets of myeloid cells that inhabit the parenchyma, meninges, and choroid plexus and discuss their roles in CNS homeostasis...
June 20, 2017: Immunity
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