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https://www.readbyqxmd.com/read/28777196/adaptation-of-the-acute-organ-failure-score-for-use-in-a-medicare-population
#1
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...
August 2, 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
#2
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
#3
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...
June 21, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28636961/myeloid-cells-in-the-central-nervous-system
#4
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
https://www.readbyqxmd.com/read/28633546/identification-of-specific-antibodies-against-the-ag85c-mpt51-hspx-fusion-protein-cmx-for-serological-screening-of-tuberculosis-in-endemic-area
#5
Adrielle Zagmignan, Adeliane Castro da Costa, José Lima Viana, Lídio Gonçalves Lima Neto, Cristina de Andrade Monteiro, Ariosvaldo Guimarães Gaioso Neto, Ana Paula Junqueira-Kipnis, Eduardo Martins de Sousa
OBJECTIVES: Development of new tools for rapid and accurate diagnosis of tuberculosis (TB) is considered a strategy for controlling the disease. The recombinant CMX fusion protein is composed of immunodominant epitopes of the Ag85C (Rv0129c), MPT51 (Rv3803c) and the entire HspX (Rv2031c) proteins from Mycobacterium tuberculosis H37Rv (Mtb). The aim of this study was to evaluate the applicability of a test using the CMX protein in individuals suspected of TB. METHODS: Indirect ELISA was used to measure serum anti-CMX IgM and IgG in individuals with pulmonary TB...
June 30, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28622503/damed-in-trem-2-steps
#6
COMMENT
Sandro Da Mesquita, Jonathan Kipnis
The role of microglia in neurodegenerative diseases has been controversial. In this issue, Keren-Shaul et al. identify a unique population of disease-associated microglia (DAM) that develop in two steps and may help to restrict damage in Alzheimer and related diseases.
June 15, 2017: Cell
https://www.readbyqxmd.com/read/28608641/risk-factors-for-pneumocystis-pneumonia-after-the-first-6%C3%A2-months-following-renal-transplantation
#7
Emmanuel Faure, Arnaud Lionet, Eric Kipnis, Christian Noël, Marc Hazzan
Pneumocystis pneumonia (PCP) incidence was decreased in renal transplant thanks to prophylaxis, recommended during the first months after transplantation. However, many late PCP cases are observed after the first 6 months and recommendations to maintain or reintroduce prophylaxis are lacking. The objective of the study was to identify risk factors to guide the individual prescription of prophylaxis, 6 months after transplantation. Thirty-three late PCP cases were identified between 1995 and 2012 in Lille Hospital, France, and were compared to 72 randomized controls transplant recipients...
June 13, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28576586/-the-lung-microbiota-review
#8
M-C Ploton, S Abakka, E Amouyal, C Besnard, L Dufour, S El Harrif, C Kipnis, B Prim, J Vignot, V Houdouin
In the last 20years, culture-independent DNA-based techniques ("shotgun sequencing") demonstrated that complex microbial communities reside on most epithelial surfaces, including the lower airways. Until the amniotic sac ruptures, a fetus is considered to be essentially sterile. Many factors affect the composition of the lung microbiota: inheritance, mode of delivery, diet, and age-related changes in adults. It interacts with the digestive and oropharyngeal microbiotas. Animal models show that these interactions play a role in innate pulmonary immunity and modulation of the inflammatory response...
May 30, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28522873/recombinant-bcg-expressing-ltak63-adjuvant-induces-superior-protection-against-mycobacterium-tuberculosis
#9
Ivan P Nascimento, Dunia Rodriguez, Carina C Santos, Eduardo P Amaral, Henrique K Rofatto, Ana P Junqueira-Kipnis, Eduardo D C Gonçalves, Maria R D'Império-Lima, Mario H Hirata, Celio L Silva, Nathalie Winter, Brigitte Gicquel, Kingston H G Mills, Mariagrazia Pizza, Rino Rappuoli, Luciana C C Leite
In order to develop an improved BCG vaccine against tuberculosis we have taken advantage of the adjuvant properties of a non-toxic derivative of Escherichia coli heat labile enterotoxin (LT), LTAK63. We have constructed rBCG strains expressing LTAK63 at different expression levels. Mice immunized with BCG expressing low levels of LTAK63 (rBCG-LTAK63lo) showed higher Th1 cytokines and IL-17 in the lungs, and when challenged intratracheally with Mycobacterium tuberculosis displayed a 2.0-3.0 log reduction in CFU as compared to wild type BCG...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28492816/enhanced-recovery-after-surgery-program-implementation-in-2-surgical-populations-in-an-integrated-health-care-delivery-system
#10
Vincent X Liu, Efren Rosas, Judith Hwang, Eric Cain, Anne Foss-Durant, Molly Clopp, Mengfei Huang, Derrick C Lee, Alex Mustille, Patricia Kipnis, Stephen Parodi
Importance: Novel approaches to perioperative surgical care focus on optimizing nutrition, mobility, and pain management to minimize adverse events after surgical procedures. Objective: To evaluate the outcomes of an enhanced recovery after surgery (ERAS) program among 2 target populations: patients undergoing elective colorectal resection and patients undergoing emergency hip fracture repair. Design, Setting, and Participants: A pre-post difference-in-differences study before and after ERAS implementation in the target populations compared with contemporaneous surgical comparator groups (patients undergoing elective gastrointestinal surgery and emergency orthopedic surgery)...
July 19, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28475585/acinetobacter-baumannii-strains-isolated-from-patients-in-intensive-care-units-in-goi%C3%A3-nia-brazil-molecular-and-drug-susceptibility-profiles
#11
Suellen Rocha Araújo Castilho, Cássia Silva de Miranda Godoy, Adriana Oliveira Guilarde, Juliana Lamaro Cardoso, Maria Cláudia Porfirio André, Ana Paula Junqueira-Kipnis, André Kipnis
Resistance to antimicrobial agents is increasing worldwide and imposes significant life-threatening risks to several different populations, especially those in intensive care units (ICUs). Bacteria can quickly develop or acquire resistance to antimicrobial drugs, and combined with their intrinsic potential to cause disease in humans, these bacteria can become deadly. Among Gram-negative bacteria, Acinetobacter baumannii is notorious as a frequent opportunistic pathogen associated with critically ill patients, and understanding the genetic basis of A...
2017: PloS One
https://www.readbyqxmd.com/read/28472471/successful-immunosuppressant-free-heterotopic-transplantation-of-tracheal-allografts-in-the-pig
#12
Julien De Wolf, Mathias Brieu, Christophe Zawadzki, Alexandre Ung, Eric Kipnis, Ramadan Jashari, Thomas Hubert, Pierre Fayoux, Christophe Mariette, Marie-Christine Copin, Alain Wurtz
OBJECTIVES: It has been demonstrated that both heterotopic and orthotopic transplants of epithelium-denuded cryopreserved tracheal allografts are feasible in immunosuppressant-free rabbits. Validation of these results in large animals is required before considering clinical applications. We evaluated the viability, immune tolerance and strain properties of such tracheal allografts heterotopically transplanted in a pig model. METHODS: Ten tracheal segments, 5 short (5 rings) and 5 long (10 rings), were obtained from male Landrace pigs...
May 2, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28463436/ethical-considerations-for-involving-latina-adolescents-in-mental-health-research
#13
Allison L McCord
TOPIC: US Latina adolescents experience significant mental health disparities, such as depressive symptoms and suicidal ideation and, therefore, should be involved in research studies focused on minimizing these health disparities. However, researchers must consider the specific ways this population is vulnerable and provide adequate protections to reduce risks related to these vulnerabilities. PURPOSE: The purpose of this article is to describe the different ways that Latina adolescents with mental health problems can be vulnerable research participants, identify strategies to protect this population during a research study, and describe steps taken to apply these strategies in an ongoing qualitative study examining depression in Latina adolescents...
February 2017: Journal of Child and Adolescent Psychiatric Nursing
https://www.readbyqxmd.com/read/28446902/modulation-of-macrophage-responses-by-cmx-a-fusion-protein-composed-of-ag85c-mpt51-and-hspx-from-mycobacterium-tuberculosis
#14
Adeliane C da Costa, Danilo P de Resende, Bruno de P O Santos, Karina F Zoccal, Lúcia H Faccioli, André Kipnis, Ana P Junqueira-Kipnis
Mycobacterium bovis Bacillus Calmette-Guérin (BCG) is a vaccine used to prevent tuberculosis (TB). Due to the poor protection conferred by BCG in adults, new, more effective formulations have been developed. A recombinant BCG vaccine expressing the CMX fusion protein Ag85c_MPT51_HspX (rBCG-CMX) induced Th1 and Th17 responses and provided better protection than BCG. It has been shown that Mycobacterium smegmatis expressing CMX also induces better protection than BCG and is a strong macrophage activator. The aim of the present study was to evaluate macrophage activation by the recombinant CMX fusion protein and by rBCG-CMX and to evaluate their ability to generate vaccine-specific immune responses...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28446786/how-and-why-do-t-cells-and-their-derived-cytokines-affect-the-injured-and-healthy-brain
#15
REVIEW
Anthony J Filiano, Sachin P Gadani, Jonathan Kipnis
The evolution of adaptive immunity provides enhanced defence against specific pathogens, as well as homeostatic immune surveillance of all tissues. Despite being 'immune privileged', the CNS uses the assistance of the immune system in physiological and pathological states. In this Opinion article, we discuss the influence of adaptive immunity on recovery after CNS injury and on cognitive and social brain function. We further extend a hypothesis that the pro-social effects of interferon-regulated genes were initially exploited by pathogens to increase host-host transmission, and that these genes were later recycled by the host to form part of an immune defence programme...
June 2017: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/28415355/numerical-study-of-continuous-and-discontinuous-dynamical-phase-transitions-for-boundary-driven-systems
#16
Ohad Shpielberg, Yaroslav Don, Eric Akkermans
The existence and search for thermodynamic phase transitions is of unfading interest. In this paper, we present numerical evidence of dynamical phase transitions occurring in boundary-driven systems with a constrained integrated current. It is shown that certain models exhibit a discontinuous transition between two different density profiles and a continuous transition between a time-independent and a time-dependent profile. We also verified that the Kipnis-Marchioro-Presutti model exhibits no phase transitions in a range much larger than previously explored...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28402488/evaluation-of-the-24-hour-recall-as-a-reference-instrument-for-calibrating-other-self-report-instruments-in-nutritional-cohort-studies-evidence-from-the-validation-studies-pooling-project
#17
Laurence S Freedman, John M Commins, Walter Willett, Lesley F Tinker, Donna Spiegelman, Donna Rhodes, Nancy Potischman, Marian L Neuhouser, Alanna J Moshfegh, Victor Kipnis, David J Baer, Lenore Arab, Ross L Prentice, Amy F Subar
Calibrating dietary self-report instruments is recommended as a way to adjust for measurement error when estimating diet-disease associations. Because biomarkers available for calibration are limited, most investigators use self-reports (e.g., 24-hour recalls (24HRs)) as the reference instrument. We evaluated the performance of 24HRs as reference instruments for calibrating food frequency questionnaires (FFQs), using data from the Validation Studies Pooling Project, comprising 5 large validation studies using recovery biomarkers...
April 10, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28396657/the-activity-of-a-hexameric-m17-metallo-aminopeptidase-is-associated-with-survival-of-mycobacterium-tuberculosis
#18
Andre F Correa, Izabela M D Bastos, David Neves, Andre Kipnis, Ana P Junqueira-Kipnis, Jaime M de Santana
Mycobacterium tuberculosis is one of the most prevalent human pathogens causing millions of deaths in the last years. Moreover, tuberculosis (TB) treatment has become increasingly challenging owing to the emergence of multidrug resistant M. tuberculosis strains. Thus, there is an immediate need for the development of new anti-TB drugs. Proteases appear to be a promising approach and may lead to shortened and effective treatments for drug-resistant TB. Although the M. tuberculosis genome predicts more than 100 genes encoding proteases, only a few of them have been studied...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28337198/role-of-metallic-nanoparticles-in-vaccinology-implications-for-infectious-disease-vaccine-development
#19
REVIEW
Lázaro Moreira Marques Neto, André Kipnis, Ana Paula Junqueira-Kipnis
Subunit vaccines are safer but less immunogenic than live-attenuated vaccines or whole cell inactivated vaccines. Adjuvants are used to enhance and modulate antigen (Ag) immunogenicity, aiming to induce a protective and long-lasting immune response. Several molecules and formulations have been studied for their adjuvanticity, but only seven have been approved to formulate human vaccines. Metallic nanoparticles (MeNPs), particularly those containing gold and iron oxides, are widely used in medicine for diagnosis and therapy and have been used as carriers for drugs and vaccines...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28275372/non-disulfide-bridge-peptide-5-5-from-the-scorpion-hadrurus-gertschi-inhibits-the-growth-of-mycobacterium-abscessus-subsp-massiliense
#20
Monalisa M Trentini, Rogério C das Neves, Bruno de Paula Oliveira Santos, Roosevelt A DaSilva, Adolfo C Barros de Souza, Márcia R Mortari, Elisabeth F Schwartz, André Kipnis, Ana P Junqueira-Kipnis
Multi-drug resistant microorganisms have been a growing concern during the last decades due to their contribution in mortality rates worldwide. Antimicrobial peptides (AMPs) are broad spectrum antimicrobial agents that display potent microbicidal activity against a wide range of microorganisms. AMPs generally have a rapid mode of action that reduces the risk of resistance developing among pathogens. In this study, an AMP derived from scorpion venom, NDBP-5.5, was evaluated against Mycobacterium abscessus subsp...
2017: Frontiers in Microbiology
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