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https://www.readbyqxmd.com/read/29238462/mechanisms-of-spinal-cord-injury-regeneration-in-zebrafish-a-systematic-review
#1
REVIEW
Zeynab Noorimotlagh, Mahla Babaie, Mahdi Safdarian, Tahereh Ghadiri, Vafa Rahimi-Movaghar
Objectives: To determine the molecular and cellular mechanisms of spinal cord regeneration in zebrafish. Materials and Methods: Medical databases of PubMed and Scopus were searched with following key words: Zebrafish; spinal cord injuries; regeneration; recovery of function. The map of mechanisms was performed using Xmind software. Results: Wnt/ß-catenin signaling, L1.1, L1.2, Major vault protein (MVP), contactin-2 and High mobility group box1 (HMGB1) had positive promoting effects on axonal re-growth while Ptena had an inhibitory effect...
December 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29236994/group-g-streptococcus-induces-an-autoimmune-il-17a-ifn-%C3%AE-mediated-carditis-in-the-lewis-rat-model-of-rheumatic-heart-disease
#2
Suchandan Sikder, Natasha L Williams, Alanna E Sorenson, Md A Alim, Miranda E Vidgen, Nicole J Moreland, Catherine M Rush, Robert S Simpson, Brenda L Govan, Robert E Norton, Madeleine W Cunningham, David J McMillan, Kadaba S Sriprakash, Natkunam Ketheesan
Acute rheumatic fever and rheumatic heart disease (ARF/RHD) have long been described as autoimmune sequelae of Streptococcus pyogenes or group A streptococcal (GAS) infection. Both antibody and T-cell responses against immunodominant GAS virulence factors including M-protein, cross-react with host tissue proteins triggering an inflammatory response leading to permanent heart damage. However, in some ARF/RHD endemic regions, throat carriage of GAS is low. As Streptococcus dysgalactiae subspecies equisimilis (SDSE), also known as β-hemolytic groups C and G streptococci (GCS/GGS) also express M-protein, we postulated that streptococci other than GAS may have the potential to initiate or exacerbate ARF/RHD...
December 9, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29236169/current-treatment-of-central-retinal-artery-occlusion-a-national-survey
#3
Teddy S Youn, Patrick Lavin, Morgan Patrylo, Joseph Schindler, Howard Kirshner, David M Greer, Matthew Schrag
BACKGROUND: Central retinal artery occlusion (CRAO) is an ophthalmological emergency, the retinal analog of a stroke. To date there is no consensus or national guidelines on how this disorder should be managed. As academic neurologists and ophthalmologists treat CRAO frequently, we set out to understand how these clinicians approach patients with CRAO with a national survey. METHODS: We identified university-associated teaching hospitals offering vascular neurology, neuro-ophthalmology and/or retina fellowships in the US and asked the directors of the programs to respond to questions in an open response format to profile the acute management of CRAO at their institution...
December 13, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29235502/stress-induced-release-of-the-s100a8-a9-alarmin-is-elevated-in-coronary-artery-disease-patients-with-impaired-cortisol-response
#4
L Jonasson, H Grauen Larsen, A K Lundberg, B Gullstrand, A A Bengtsson, A Schiopu
Psychological stress is thought to be an important trigger of cardiovascular events, yet the involved pathways and mediators are largely unknown. Elevated systemic levels of the pro-inflammatory alarmin S100A8/A9 correlate with poor prognosis in coronary artery disease (CAD) patients. Here, we investigated the links between S100A8/A9 release and parameters of anti-inflammatory glucocorticoid secretion in two different cohorts subjected to a psychological stress test. In the first cohort of 60 CAD patients, psychological stress induced a rapid increase of circulating S100A8/A9...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29235064/induction-of-neuroinflammatory-response-and-histopathological-alterations-caused-by-quinolinic-acid-administration-in-the-striatum-of-glutaryl-coa-dehydrogenase-deficient-mice
#5
Alexandre Umpierrez Amaral, Bianca Seminotti, Janaína Camacho da Silva, Francine Hehn de Oliveira, Rafael Teixeira Ribeiro, Carmen Regla Vargas, Guilhian Leipnitz, Abel Santamaría, Diogo Onofre Souza, Moacir Wajner
Glutaric acidemia type I (GA I) is an inherited neurometabolic disorder caused by a severe deficiency of the mitochondrial glutaryl-CoA dehydrogenase (GCDH) activity. Patients usually present progressive cortical leukodystrophy and commonly develop acute bilateral striatal degeneration mainly during infections that markedly worse their prognosis. A role for quinolinic acid (QA), a key metabolite of the kynurenine pathway, which is activated during inflammatory processes, on the pathogenesis of the acute striatum degeneration occurring in GA I was proposed but so far has not yet been evaluated...
December 12, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/29234548/steroid-responsive-encephalopathy-associated-with-autoimmune-thyroiditis-presenting-with-fever-and-confusion
#6
Chiranthi Kongala Liyanage, Tilak Manthi Janake Munasinghe, Adsareswary Paramanantham
Steroid-Responsive Encephalopathy Associated with Autoimmune Thyroiditis (SREAT) is a diagnostic conundrum as it may present with a myriad of nonspecific clinical features and laboratory and neuroimaging investigations are not diagnostic. We report a case of a 65-year-old female who presented with an acute febrile illness associated with headache and confusion, tangential thoughts, and loose association. Based on neutrophil leukocytosis in the full blood count and elevated inflammatory markers, she was commenced on empirical intravenous antibiotics suspecting meningoencephalitis...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/29234179/vitamin-e-coated-polysulfone-membrane-based-hemodiafiltration-attenuates-inflammation-in-a-rat-model-of-lipopolysaccharide-induced-systemic-inflammation
#7
Yoshihiro Hatanaka, Satoru Inoue, Koji Goto, Norihisa Yasuda, Seigo Hidaka, Takaaki Kitano
Background: Acute blood purification (ABP) therapy is used regularly in the clinical setting and reportedly alleviates organ failure associated with severe systemic inflammatory responses, leading to reduced mortality. The present study aimed to determine whether there is a difference in efficacy between polysulfone (PS) membranes, which are currently used regularly in the clinical setting, and vitamin E-coated polysulfone (VEPS) membranes, which are anticipated to exhibit the antioxidant and anti-inflammatory properties of vitamin E...
September 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29233919/diacylglycerol-kinase-%C3%AE-deficiency-alters-inflammation-markers-in-adipose-tissue-in-response-to-high-fat-diet
#8
Emmani B M Nascimento, Louise Mannerås Holm, Alexander V Chibalin, Marie Björnholm, Juleen R Zierath
Conversion of diacylglycerol to phosphatidic acid is mediated by diacylglycerol kinases (DGK), with DGKα specifically linked to adaptive immune responses. We determined the role of DGKα in obesity and inflammatory responses to a high fat diet (HFD). DGKα knockout (KO) and wild-type (WT) littermates were either a) chow-fed, b) HFD-fed for 12 weeks (Long-Term HFD), or c) HFD-fed for 3 days (Acute HFD). Body weight/composition, oxygen consumption, food intake and glucose tolerance (IPGT) was unaltered between chow-fed DGKα KO and WT mice...
December 12, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/29233467/aspergillus-fumigatus-sensitive-ige-is-associated-with-bronchial-hypersensitivity-in-a-murine-model-of-neutrophilic-airway-inflammation
#9
G Morán, B Uberti, A Ortloff, H Folch
Neutrophils are the predominant inflammatory cells that infiltrate airways during acute exacerbation of asthma. The importance of A. fumigatus sensitization, and IgE response in the airways in patients with acute asthma is unclear. Rockefeller (RK) mice were sensitized with A. fumigatus extract protein. The animals were subsequently challenged with different degrees of A. fumigatus contamination in the cage bedding. All groups of mice were euthanized to obtain bronchoalveolar lavage fluid (BALF) for cytological and Elisa assays, and lung tissue for histological analysis...
December 7, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/29232563/immunologic-burden-links-periodontitis-to-acute-coronary-syndrome
#10
John M Liljestrand, Susanna Paju, Milla Pietiäinen, Kåre Buhlin, G Rutger Persson, Markku S Nieminen, Juha Sinisalo, Päivi Mäntylä, Pirkko J Pussinen
BACKGROUND AND AIMS: Periodontitis, a common polymicrobial inflammatory disease in the tooth supporting tissues, is a risk factor for coronary artery disease. One of the proposed underlying mechanisms is the systemic immune response to periodontal infection. We studied how serum antibodies against seven periodontal pathogens and their subgingival levels associate with each other, periodontitis, and coronary artery disease. METHODS: The Parogene cohort included 505 Finnish patients (mean age 63 y) who underwent coronary angiography, and clinical and radiographic oral examinations...
December 6, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29232407/temporal-changes-in-cardiac-oxidative-stress-inflammation-and-remodeling-induced-by-exercise-in-hypertension-role-for-local-angiotensin-ii-reduction
#11
Sebastião D Silva, Zaira P Jara, Roseli Peres, Larissa S Lima, Cristóforo Scavone, Augusto C Montezano, Rhian M Touyz, Dulce E Casarini, Lisete C Michelini
Exercise training reduces renin-angiotensin system (RAS) activation, decreases plasma and tissue oxidative stress and inflammation in hypertension. However, the temporal nature of these phenomena in response to exercise is unknown. We sought to determine in spontaneously hypertensive rats (SHR) and age-matched WKY controls the weekly effects of training on blood pressure (BP), plasma and left ventricle (LV) Ang II and Ang-(1-7) content (HPLC), LV oxidative stress (DHE staining), gene and protein expression (qPCR and WB) of pro-inflammatory cytokines, antioxidant enzymes and their consequence on hypertension-induced cardiac remodeling...
2017: PloS One
https://www.readbyqxmd.com/read/29232153/respiratory-responses-to-ozone-exposure-the-multicenter-ozone-study-in-older-subjects-moses
#12
Mehrdad Arjomandi, John R Balmes, Mark W Frampton, Philip Bromberg, Paul Stark, Neil E Alexis, David Q Rich, Maria Costantini, Danielle Hollenbeck-Pringle, Nicholas Dagincourt, Milan J Hazucha
RATIONALE: Acute respiratory effects of low-level ozone exposure are not well defined in older adults. OBJECTIVE: The Multicenter Ozone Study in oldEr Subjects (MOSES), although primarily focused on acute cardiovascular effects, provided an opportunity to assess respiratory responses to low concentrations of ozone in older healthy adults. METHODS: We performed a randomized crossover, controlled exposure study of 87 healthy adults (59.9±4...
December 12, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29231815/endothelial-cells-express-nkg2d-ligands-and-desensitize-anti-tumor-nk-responses
#13
Thornton W Thompson, Alexander Byungsuk Kim, Po-Yi Jonathan Li, Jiaxi Wang, Benjamin T Jackson, Kristen Ting Hui Huang, Lily Zhang, David H Raulet
Natural Killer (NK) cells confer protection from tumors and infections by releasing cytotoxic granules and pro-inflammatory cytokines upon recognition of diseased cells. The responsiveness of NK cells to acute stimulation is dynamically tuned by steady-state receptor-ligand interactions of an NK cell with its cellular environment. Here we demonstrate that in healthy WT mice the NK activating receptor NKG2D is engaged in vivo by one of its ligands, RAE-1ε, which is expressed constitutively by lymph node endothelial cells and highly induced on tumor-associated endothelium...
December 12, 2017: ELife
https://www.readbyqxmd.com/read/29231783/dexamethasone-exacerbates-cytotoxic-chemotherapy-induced-lethargy-and-weight-loss-in-female-tumor-free-mice
#14
John Wong, Lisa T Tran, Kaari A Lynch, Lisa J Wood
Cytotoxic chemotherapy can induce a systemic inflammatory response which has been proposed to be an underlying mechanism of cancer treatment related fatigue. Dexamethasone, a synthetic glucocorticoid that has potent anti-inflammatory effects, is incorporated into chemotherapy regimens to prevent chemotherapy-induced nausea and vomiting (CINV). The purpose of this study was to determine whether by suppressing cytotoxic chemotherapy-induced inflammation, dexamethasone could ameliorate chemotherapy induced fatigue/lethargy in tumor free mice...
December 12, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29231254/characteristics-of-pediatric-recurrent-erythema-multiforme
#15
Adam Heinze, Megha Tollefson, Kristen E Holland, Yvonne E Chiu
BACKGROUND: Erythema multiforme (EM) is an acute condition characterized by distinctive target lesions of the skin often accompanied by mucosal ulcers. A subset of individuals experience frequent episodes of recurrent EM, which is rare and poorly understood, especially in children. OBJECTIVE: To characterize clinical features, laboratory findings, and treatment responses of pediatric recurrent EM. METHODS: A retrospective chart review was conducted at the Children's Hospital of Wisconsin in Milwaukee, Wisconsin (2000-2015) and the Mayo Clinic in Rochester, Minnesota (1990-2015)...
December 12, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/29230844/cyclophilin-d-promotes-tubular-cell-damage-and-the-development-of-interstitial-fibrosis-in-the-obstructed-kidney
#16
Weiping Hou, Khai G Leong, Elyce Ozols, Greg H Tesch, David J Nikolic-Paterson, Frank Y Ma
Cyclophilin D (CypD) is an important component in mitochondrial-dependent tubular cell death in acute kidney injury. However, it is not known whether CypD contributes to tubular cell damage in chronic interstitial fibrosis. We investigated this question in the unilateral ureter obstruction (UUO) model of renal interstitial fibrosis. Groups of CypD-/- and wild type (WT) mice were killed 7 or 12 days after UUO surgery. The significant tubular cell apoptosis seen in WT UUO was significantly reduced in CypD-/- UUO based on TUNEL and cleaved caspase 3 staining...
December 12, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29229868/sex-dependent-differences-in-inflammatory-responses-during-liver-regeneration-in-a-murine-model-of-acute-liver-injury
#17
Debora Bizzaro, Marika Crescenzi, Rosa Di Liddo, Diletta Arcidiacono, Andrea Cappon, Thomas Bertalot, Vincenzo Amodio, Alessia Tasso, Annalisa Stefani, Valentina Bertazzo, Giacomo Germani, Chiara Frasson, Giuseppe Basso, Pierpaolo Parnigotto, Malcolm Ronald Alison, Patrizia Burra, Maria Teresa Conconi, Francesco Paolo Russo
A sexual dimorphism in liver inflammation and repair was previously demonstrated. Its cellular dissection in the course of acute liver injury (ALI) was explored. BALB/c mice were treated with carbon tetrachloride (CCl4) by intraperitoneal injection and sacrificed after 3, 5 and 8 days. Histological and hepatic cell population analyses were performed. The correlation between androgen receptor (AR) expression and liver recruited inflammatory cells was investigated by treatment with the AR antagonist flutamide...
December 11, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29229400/tumor-necrosis-factor-producing-t-regulatory-cells-are-associated-with-severe-liver-injury-in-patients-with-acute-hepatitis-a
#18
Yoon Seok Choi, Min Kyung Jung, Jeewon Lee, Seong Jin Choi, Sung Hoon Choi, Hyun Woong Lee, Jong-Joo Lee, Hyung Joon Kim, Sang Hoon Ahn, Dong Hyeon Lee, Won Kim, Su-Hyung Park, Jun R Huh, Hyoung-Pyo Kim, Jun Yong Park, Eui-Cheol Shin
BACKGROUND AND AIMS: CD4+CD25+Foxp3+ T-regulatory (Treg) cells control immune responses and maintain immune homeostasis. However, under inflammatory conditions, Treg cells produce cytokines that promote inflammation. We investigated production of tumor necrosis factor (TNF) by Treg cells in patients with acute hepatitis A (AHA), and examined the characteristics of these cells and association with clinical factors. METHODS: We analyzed blood samples collected from 63 patients with AHA at the time of hospitalization (and some at later time points) and 19 healthy donors in South Korea...
December 8, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29229270/intratracheal-instillation-of-alveolar-type-ii-cells-enhances-recovery-from-acute-lung-injury-in-rats
#19
Raquel Guillamat-Prats, Ferranda Puig, Marta Camprubí-Rimblas, Raquel Herrero, Anna Serrano-Mollar, Maria Nieves Gómez, Jessica Tijero, Michael A Matthay, Lluís Blanch, Antonio Artigas
BACKGROUND: Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are characterized by excess production of inflammatory factors. Alveolar type II (ATII) cells help repair damaged lung tissue, rapidly proliferating and differentiating into alveolar type I cells after epithelial cell injury. In ALI, the lack of viable ATII favors progression to more severe lung injury. ATII cells regulate the immune response by synthesizing surfactant and other anti-inflammatory proteins and lipids...
November 8, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29229114/estradiol-mediates-the-long-lasting-lung-inflammation-induced-by-intestinal-ischemia-and-reperfusion
#20
Evelyn Thais Fantozzi, Ana Cristina Breithaupt-Faloppa, Fernanda Yamamoto Ricardo-da-Silva, Sara Rodrigues-Garbin, Daniel Cancelli Romero, Adriana da Silva Rodrigues, Yanira Riffo-Vasquez, Wothan Tavares-de-Lima
BACKGROUND: Lung inflammation is one of the main consequences of intestinal ischemia reperfusion (intestinal IR) and, in severe cases, can lead to acute respiratory distress syndrome and death. We have previously demonstrated that estradiol exerts a protective effect on lung edema and cytokine release caused by intestinal IR in male rats. MATERIALS AND METHODS: We investigated the role of estradiol on the generation of interleukin (IL)-1β, IL-10, vascular endothelial growth factor (VEGF), and cytokine-induced neutrophil chemoattractant 1 (CINC-1) in a female rat model of intestinal IR...
January 2018: Journal of Surgical Research
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