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https://www.readbyqxmd.com/read/28649127/the-novel-%C3%AE-glucan-ycp-improves-the-survival-rates-and-symptoms-in-septic-mice-by-regulating-myeloid-derived-suppressor-cells
#1
Dan Liu, Ming You, Guang-Feng Zhao, Xiu-Jun Li, Yu-Xian Song, Huan Dou, Wen-Bing Yao, Xiang-Dong Gao, Ya-Yi Hou
Sepsis is a life-threatening health condition that is initially characterized by uncontrolled inflammation, followed by the development of persistent immunosuppression. YCP is a novel α-glucan purified from the mycelium of the marine fungus Phoma herbarum YS4108, which has displayed strong antitumor activity via enhancing host immune responses. In this study, we investigated whether YCP could influence the development of sepsis in a mouse model. Caecal ligation and puncture (CLP)-induced sepsis was established in mice that were treated with YCP (20 mg/kg, ip or iv) 2 h before, 4 and 24 h after the CLP procedure, and then every other day...
June 26, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28648928/pg2-a-botanically-derived-drug-extracted-from-astragalus-membranaceus-promotes-proliferation-and-immunosuppression-of-umbilical-cord-derived-mesenchymal-stem-cells
#2
Yu-Hua Chao, Kang-Hsi Wu, Chiao-Wen Lin, Shun-Fa Yang, Wan-Ru Chao, Ching-Tien Peng, Han-Ping Wu
ETHNOPHARMACOLOGICAL RELEVANCE: Astragalus membranaceus is used to manage the deficiency of vital energy in traditional Chinese medicine and confirmed to have many biological functions. Mesenchymal stem cells (MSCs) possess immunosuppressive effects, and are widely used for regenerative medicine and immune disorders. AIMS OF STUDY: This study investigated the effects of Astragalus polysaccharides (APS) on umbilical cord-derived MSCs (UCMSCs), including morphology, surface marker expression, proliferation, differentiation, and in-vitro and in-vivo immunosuppressive capacities...
June 22, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28647143/a-tertiary-center-experience-with-velopharyngeal-surgical-techniques-for-treatment-of-snoring-and-obstructive-sleep-apnea
#3
Omer Karakoc, Murat Binar, Umit Aydin, Hakan Genc, Timur Akcam, Mustafa Gerek
OBJECTIVES: The aim of this study was to assess the outcomes of patients who treated with the relatively new surgical procedures; anterior palatoplasty (AP), Cahali lateral pharyngoplasty (CLP), and expansion sphincter pharyngoplasty (ESP) for habitual snoring or obstructive sleep apnea (OSA). METHODS: Prospective series of 93 patients were evaluated. The performed surgical techniques, polysomnographic outcomes, pre- and postoperative clinical parameters, and complication rates were assessed...
June 21, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28646428/effects-of-carvacrol-on-survival-mesenteric-blood-flow-aortic-function-and-multiple-organ-injury-in-a-murine-model-of-polymicrobial-sepsis
#4
Erdem Kamil Ozer, Mustafa Tugrul Goktas, Aysun Toker, Hulagu Bariskaner, Ceyhan Ugurluoglu, Alper Bektas Iskit
Carvacrol (CRV) has strong cytoprotective, antioxidant, and anti-inflammatory properties. We aimed to demonstrate the possible protective effects of CRV on survival, mesenteric artery blood flow (MBF), vascular reactivity, and oxidative and inflammatory injuries in a murine model of polymicrobial sepsis induced by cecal ligation and puncture (CLP). Wistar rats were allocated into the following four groups: Sham, CLP, Sham + CRV, and CLP + CRV. The animals were orally administered with CRV (80 mg/kg/day) or vehicle (corn oil; 1 mL/kg/day) for 7 days...
June 23, 2017: Inflammation
https://www.readbyqxmd.com/read/28644742/new-legal-requirements-for-submission-of-product-information-to-poisons-centres-in-eu-member-states
#5
Ronald de Groot, Pieter Brekelmans, Herbert Desel, Irma de Vries
In the past eight years, the European Association of Poisons Centres and Clinical Toxicologists (EAPCCT) has been intensively involved in a European Commission led process to develop EU legislation on the information of hazardous products that companies have to notify to EU Poisons Centres (or equivalent "appointed bodies"). As a result of this process, the Commission adopted Regulation (EU) No 2017/542, amending the CLP Regulation by adding an Annex on harmonised product submission requirements. Harmonised mixture information requirements: Detailed and consistent information on the composition of the hazardous product will become available to EU Poisons Centres (PC)...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28637971/esculentoside-a-ameliorates-cecal-ligation-and-puncture-induced-acute-kidney-injury-in-rats
#6
Guodong Sun, Wei Yang, Yang Zhang, Mingyan Zhao
Esculentoside A (EsA), a saponin isolated from Phytolacca esculenta, can attenuate acute liver and lung injury. However, whether EsA has a protective effect against sepsis-induced acute kidney injury (AKI) has not been reported. In this study, EsA (2.5, 5, or 10 mg/kg) was given to rats with sepsis induced by cecal ligation and puncture (CLP). We found that EsA improved the survival of septic rats in a dose-dependent manner. In addition, EsA lowered the kidney tubular damage score and decreased blood urea nitrogen and creatinine...
June 22, 2017: Experimental Animals
https://www.readbyqxmd.com/read/28633555/glutamine-administration-in-early-or-late-septic-phase-downregulates-lymphocyte-pd-1-pd-l1-expression-and-the-inflammatory-response-in-mice-with-polymicrobial-sepsis
#7
Ya-Mei Hu, Yuan-Chin Hsiung, Man-Hui Pai, Sung-Ling Yeh
BACKGROUND: Sepsis is a severe inflammatory response to infection. Excessive compensation to inflammation leads to dysregulated immune response that ultimately results in organ damage and lethality of sepsis. This study administered glutamine (GLN) in the early or late phase of sepsis to investigate its effects on regulating leukocyte programmed cell death 1 (PD-1) and its ligand (programmed cell death ligand 1 [PD-L1]) expression, macrophage function, inflammation, and acute kidney injury in sepsis...
March 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28632510/itraq-based-quantitative-proteomic-analysis-of-lungs-in-murine-polymicrobial-sepsis-with-hydrogen-gas-treatment
#8
Yingxue Bian, Chao Qin, Yuchang Xin, Yang Yu, Hongguang Chen, Guolin Wang, Keliang Xie, Yonghao Yu
Sepsis-associated acute lung injury (ALI), which carries a high morbidity and mortality in patients, has no effective therapeutic strategies to date. Our group have already reported that hydrogen gas (H2) exerts a protective effect against sepsis in mice. However, the molecular mechanisms underlying H2 treatment are not fully understood. This study investigated the effects of H2 on lung injuries in septic mice through the iTRAQ-based quantitative proteomic analysis. Male ICR mice used in this study were subjected to cecal ligation and puncture (CLP) or sham operation...
June 19, 2017: Shock
https://www.readbyqxmd.com/read/28629855/con4ei-development-of-serious-eye-damage-and-eye-irritation-testing-strategies-with-respect-to-the-requirements-of-the-un-ghs-eu-clp-hazard-categories
#9
Sandra Verstraelen, An R Van Rompay
The main objective of the CON4EI (CONsortium for in vitro Eye Irritation testing strategy) project (2015-2016) was to develop tiered, non-animal testing strategies for serious eye damage and eye irritation assessment in relation to the most important drivers of classification. The serious eye damage and eye irritation potential of a set of 80 chemicals was identified based on existing in vivo Draize eye test data and testing was conducted using the following eight alternative test methods: BCOP (Bovine Corneal Opacity and Permeability)+histopathology, BCOP-LLBO (BCOP Laser Light-Based Opacitometer), ICE (Isolated Chicken Eye)+histopathology, STE (Short Term Exposure), EpiOcular™ EIT (EpiOcular Eye Irritation Test), EpiOcular™ ET-50 (EpiOcular™ Time-to-toxicity), SkinEthic™ HCE EIT (SkinEthic™ Human Corneal Epithelial Eye Irritation Test), and SMI (Slug Mucosal Irritation)...
June 16, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28625996/natural-dna-transformation-is-functional-in-lactococcus-lactis-ssp-cremoris-kw2
#10
Blandine David, Amandine Radziejwoski, Frédéric Toussaint, Laetitia Fontaine, Marie Henry de Frahan, Cédric Patout, Sabine van Dillen, Patrick Boyaval, Philippe Horvath, Christophe Fremaux, Pascal Hols
Lactococcus lactis is one of the most commonly used lactic acid bacteria in the dairy industry. Activation of competence for natural DNA transformation in this species would greatly improve the selection of novel strains with desired genetic traits. Here, we investigated the activation of natural transformation in L. lactis ssp. cremoris KW2, a strain of plant origin whose genome encodes the master competence regulator ComX and the complete set of proteins usually required for natural transformation. In the absence of knowledge about competence regulation in this species, we constitutively overproduced ComX in a reporter strain of late competence phase activation and showed, by transcriptomic analyses, a ComX-dependent induction of all key competence genes...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28625915/high-fat-diet-induced-obesity-increases-myocardial-injury-and-alters-cardiac-stat3-signaling-in-mice-after-polymicrobial-sepsis
#11
Theodore DeMartini, Marchele Nowell, Jeanne James, Lauren Williamson, Patrick Lahni, Hui Shen, Jennifer M Kaplan
Little is known about how obesity affects the heart during sepsis and we sought to investigate the obesity-induced cardiac effects that occur during polymicrobial sepsis. Six-week old C57BL/6 mice were randomized to a high fat (HFD) (60% kcal fat) or normal diet (ND) (16% kcal fat). After 6 wks of feeding, mice were anesthetized with isoflurane and polymicrobial sepsis was induced by cecal ligation and puncture (CLP). Plasma and cardiac tissue were obtained for analysis. Echocardiography was performed on a separate cohort of mice at 0 and 18h after CLP...
June 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28625265/-protective-effect-of-curcumin-on-hepatocytes-in-rats-with-sepsis
#12
Haiyan Yin, Minshan Qiu, Dan He, Rui Zhang, Pei Tao, Yanwen Liang, Yuegui Yang, Yanqi Guo, Xiaoling Ye
OBJECTIVE: To investigate the protective effect of curcumin on hepatocytes in rats with sepsis. METHODS: Eighty healthy male Sprague-Dawley (SD) rats were randomly divided into sham operation group, sepsis group, Xuebijing group and curcumin group (20 rats in each group) according to the random number table method. The animal model of sepsis was established by cecal ligation and puncture (CLP). In the sham operation group, the cecum was removed only after the operation...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28623379/cathelicidin-deficient-mice-exhibit-increased-survival-and-upregulation-of-key-inflammatory-response-genes-following-cecal-ligation-and-puncture
#13
Patricia Severino, Suely Kubo Ariga, Hermes Vieira Barbeiro, Thais Martins de Lima, Elisangela de Paula Silva, Denise Frediani Barbeiro, Marcel Cerqueira César Machado, Victor Nizet, Fabiano Pinheiro da Silva
Antimicrobial peptides possess a myriad of molecular properties including bacterial killing and the regulation of many aspects of innate immunity. Cathelicidins are a group of antimicrobial peptides widely investigated by the scientific community. Many studies have focused on the bactericidal and pro-inflammatory roles of cathelicidins. Because the role of endogenous cathelicidin expression remains obscure in deep-seated systemic infections, we induced sepsis in cathelicidin knockout and wild-type (WT) mice by cecal ligation and puncture, performing transcriptome screening by DNA microarray in conjunction with other immunologic assays...
June 16, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28616838/assessment-of-renal-hemodynamic-toxicity-of-fluid-challenge-with-0-9-nacl-compared-to-balanced-crystalloid-plasmalyte-%C3%A2-in-a-rat-model-with-severe-sepsis
#14
Pierre-Yves Olivier, François Beloncle, Valérie Seegers, Maher Tabka, Mathilde Renou de La Bourdonnaye, Alain Mercat, Paul Cales, Daniel Henrion, Peter Radermacher, Lise Piquilloud, Nicolas Lerolle, Pierre Asfar
BACKGROUND: According to international guidelines, volume expansion with crystalloids is the first-line treatment for hemodynamic management in patients with severe sepsis or septic shock. Compared to balanced crystalloids, 0.9% sodium chloride (0.9% NaCl) induces hyperchloremia and metabolic acidosis and may alter renal hemodynamics and function. We compared the effects of 0.9% NaCl to a less chloride-concentrated fluid, PlasmaLyte(®) (PL) in targeted fluid resuscitation in a randomized, double-blind controlled study in an experimental model of severe sepsis in rats...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28616781/impact-of-hyperglycemia-on-cystathionine-%C3%AE-lyase-expression-during-resuscitated-murine-septic-shock
#15
Tamara Merz, Josef A Vogt, Ulrich Wachter, Enrico Calzia, Csaba Szabo, Rui Wang, Peter Radermacher, Oscar McCook
BACKGROUND: Cystathionine-γ-lyase (CSE) was shown to have a regulatory role in glucose metabolism. Circulatory shock can induce metabolic stress, thereby leading to hyperglycemia and mitochondrial dysfunction. In vitro data suggest an effect of high glucose on CSE expression. Therefore, the aim of this study was to investigate the effects of hyperglycemia on CSE expression in resuscitated murine septic shock. METHODS: Normo- (80-150 mg/dl) and hyperglycemic (>200 mg/dl) male C57/BL6J mice (n = 5-6 per group) underwent cecal ligation and puncture (CLP)-induced polymicrobial sepsis or sham procedure (n = 6 per group) and, 15 h afterwards, were anesthetized again, surgically instrumented and received intensive care treatment, including antibiotics, lung protective mechanical ventilation, circulatory support, and intravenous (i...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28611286/synergistic-antibiotic-effect-of-looped-antimicrobial-peptide-clp-19-with-bactericidal-and-bacteriostatic-agents
#16
Di Li, Ya Yang, Zhiqiang Tian, Jun Lv, Fengjun Sun, Qian Wang, Yao Liu, Peiyuan Xia
The treatment of drug-resistant infections is complicated and the alarming rise in infectious diseases poses a unique challenge for development of effective therapeutic strategies. Antibiotic-induced liberation of the bacterial endotoxin lipopolysaccharide (LPS) may have immediate adverse effects promoting septic shock in patients. In the present study, we first confirmed our previous finding that looped antimicrobial peptide CLP-19 exerts non-specific direct antibacterial activity with no toxic to mammalian cells and second revealed that CLP-19 has synergistic effect to enhance the antibacterial activities of other conventional bactericidal (ampicillin and ceftazidime) and bacteriostatic (erythromycin and levofloxacin) agents...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28610995/zingerone-reduces-hmgb1-mediated-septic-responses-and-improves-survival-in-septic-mice
#17
Wonhwa Lee, Sae-Kwang Ku, Jong-Sup Bae
High mobility group box 1 (HMGB1) is considered a late mediator of sepsis and the inhibition of HMGB1-mediated severe inflammatory responses and restoration of endothelial integrity have emerged as attractive therapeutic strategies for the management of sepsis. Zingerone (ZGR), a phenolic alkanone isolated from ginger, has been reported to possess various pharmacological activities. We examined the effects of ZGR on HMGB1-mediated septic responses and survival rate in a mouse model of sepsis. ZGR was administered after HMGB1 challenge...
June 10, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28610761/comparative-proteomic-analysis-provides-insight-into-the-biological-role-of-protein-phosphatase-inhibitor-2-from-arabidopsis
#18
Nagib Ahsan, Mingjie Chen, Fernanda Salvato, Rashaun S Wilson, R Shyama Prasad Rao, Jay J Thelen
Protein phosphatase inhibitor-2 (PPI-2) is a conserved eukaryotic effector protein that inhibits type one protein phosphatases (TOPP). A transfer-DNA knockdown of AtPPI-2 resulted in stunted growth in both vegetative and reproductive phases of Arabidopsis development. At the cellular level, AtPPI-2 knockdown had 35 to 40% smaller cells in developing roots and leaves. This developmental phenotype was rescued by transgenic expression of the AtPPI-2 cDNA behind a constitutive promoter. Comparative proteomics of developing leaves of wild type (WT) and AtPPI-2 mutant revealed reduced levels of proteins associated with chloroplast development, ribosome biogenesis, transport, and cell cycle regulation processes...
June 10, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28606823/alpha-lipoic-acid-attenuates-acute-neuroinflammation-and-long-term-cognitive-impairment-after-polymicrobial-sepsis
#19
Amanda Della Giustina, Mariana Pereira Goldim, Lucinéia Gainski Danielski, Drielly Florentino, Khiany Mathias, Leandro Garbossa, Aloir Neri Oliveira Junior, Maria Eduarda Fileti, Graciela Freitas Zarbato, Naiana da Rosa, Ana Olívia Martins Laurentino, Jucélia Jeremias Fortunato, Francielle Mina, Tatiani Bellettini-Santos, Josiane Budni, Tatiana Barichello, Felipe Dal-Pizzol, Fabricia Petronilho
Sepsis is a complication of an infection which imbalance the normal regulation of several organ systems, including the central nervous system (CNS). Evidence points towards inflammation and oxidative stress as major steps associated with brain dysfunction in sepsis. Thus, we investigated the α-lipoic acid (ALA) effect as an important antioxidant compound on brain dysfunction in rats. Wistar rats were subjected to sepsis by cecal ligation and perforation (CLP) or sham (control) and treated orally with ALA (200 mg/kg after CLP) or vehicle...
June 10, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28603561/distinct-dna-methylation-profiles-in-subtypes-of-orofacial-cleft
#20
Gemma C Sharp, Karen Ho, Amy Davies, Evie Stergiakouli, Kerry Humphries, Wendy McArdle, Jonathan Sandy, George Davey Smith, Sarah J Lewis, Caroline L Relton
BACKGROUND: Epigenetic data could help identify risk factors for orofacial clefts, either by revealing a causal role for epigenetic mechanisms in causing clefts or by capturing information about causal genetic or environmental factors. Given the evidence that different subtypes of orofacial cleft have distinct aetiologies, we explored whether children with different cleft subtypes showed distinct epigenetic profiles. METHODS: In whole-blood samples from 150 children from the Cleft Collective cohort study, we measured DNA methylation at over 450,000 sites on the genome...
2017: Clinical Epigenetics
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