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https://www.readbyqxmd.com/read/28641140/effect-of-c1-inh-on-ischemia-reperfusion-injury-in-a-porcine-limb-ex-vivo-perfusion-model
#1
Mai M Abdelhafez, Jane Shaw, Damian Sutter, Jonas Schnider, Yara Banz, Hansjörg Jenni, Esther Voegelin, Mihai A Constantinescu, Robert Rieben
Revascularization of an amputated limb within 4-6h is essential to avoid extensive ischemia/reperfusion (I/R) injury leading to vascular leakage, edema and tissue necrosis. I/R injury is a pathological inflammatory condition that occurs during reperfusion of an organ or tissue after prolonged ischemia. It is characterized by a complex crosstalk between endothelial cell activation and the activation of plasma cascades. Vasculoprotective pharmacological intervention to prevent I/R injury might be an option to prolong the time window between limb amputation and successful replantation...
June 19, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28640809/development-of-elisas-for-diagnosis-of-acute-typhoid-fever-in-nigerian-children
#2
Jiin Felgner, Aarti Jain, Rie Nakajima, Li Liang, Algis Jasinskas, Eduardo Gotuzzo, Joseph M Vinetz, Fabio Miyajima, Munir Pirmohamed, Fatimah Hassan-Hanga, Dominic Umoru, Binta Wudil Jibir, Safiya Gambo, Kudirat Olateju, Philip L Felgner, Stephen Obaro, D Huw Davies
Improved serodiagnostic tests for typhoid fever (TF) are needed for surveillance, to facilitate patient management, curb antibiotic resistance, and inform public health programs. To address this need, IgA, IgM and IgG ELISAs using Salmonella enterica serovar Typhi (S. Typhi) lipopolysaccharide (LPS) and hemolysin E (t1477) protein were conducted on 86 Nigerian pediatric TF and 29 non-typhoidal Salmonella (NTS) cases, 178 culture-negative febrile cases, 28 "other" (i.e., non-Salmonella) pediatric infections, and 48 healthy Nigerian children...
June 22, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28637300/commercial-rodent-diets-differentially-regulate-autoimmune-glomerulonephritis-epigenetics-and-microbiota-in-mrl-lpr-mice
#3
Michael R Edwards, Rujuan Dai, Bettina Heid, Thomas E Cecere, Deena Khan, Qinghui Mu, Catharine Cowan, Xin M Luo, S Ansar Ahmed
The course and severity of lupus in spontaneous murine lupus models varies among laboratories, which may be due to variations in diet, housing and/or local environmental conditions. In this study, we investigated the influence of common rodent diets while keeping other factors constant. Female lupus-prone MRL/lpr mice were subjected to the same housing conditions and given one of the three diets: Teklad 7013 containing isoflavone rich soy and alfalfa, Harlan 2018 isoflavone rich soy-based diet, or ResearchDiets Inc...
June 15, 2017: International Immunology
https://www.readbyqxmd.com/read/28637001/a-novel-method-to-generate-salmonella-typhi-ty21a-ghosts-exploiting-the-%C3%AE-phage-holin-endolysin-system
#4
Gayeon Won, Boram Kim, John Hwa Lee
Human typhoid fever caused by Salmonella Typhi still poses a severe global disease burden in developing countries despite the availability of commercial vaccines. In this study, we constructed a non-living S. Typhi Ty21a vaccine candidate by employing a lambda (λ) phage-derived holin-endolysin system to efficiently construct bacterial ghosts. The lysis plasmid pJHL464 harbors an R lysis cassette that is stringently regulated by dual promoters containing cI857/λPR and ParaBAD/araC components. The plasmid was introduced into an asd gene-deleted S...
June 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636126/bilateral-diffuse-uveal-melanocytic-proliferation-case-report-and-literature-review
#5
REVIEW
Kristian Klemp, Jens Folke Kiilgaard, Steffen Heegaard, Tove Nørgaard, Mette Klarskov Andersen, Jan Ulrik Prause
Bilateral diffuse uveal melanocytic proliferation (BDUMP) is a rare paraneoplastic intraocular disease that causes progressive visual loss in patients driven by an IgG factor associated with an underlying malignancy. Characteristic ocular findings include exudative retinal detachment, rapid cataract formation and uveal melanocytic tumours. The awareness and documentation of BDUMP has increased during the past decade, and the increasing amount of data collected demonstrates the effect of treatment with plasmapheresis and the value of diagnostic tools in BDUMP such as genetic and immunologic investigations...
June 21, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28634689/survival-intestinal-mucosa-adhesion-and-immunomodulatory-potential-of-lactobacillus-plantarum-strains
#6
Valentini Santarmaki, Yiannis Kourkoutas, Georgia Zoumpopoulou, Eleni Mavrogonatou, Mikis Kiourtzidis, Nikos Chorianopoulos, Chrysoula Tassou, Effie Tsakalidou, Constantinos Simopoulos, Petros Ypsilantis
Survival during transit through the gastrointestinal track, intestinal mucosa adhesion, and a potential immunomodulatory effect of Lactobacillus plantarum strains 2035 and ACA-DC 2640 were investigated in a rat model. According to microbiological and multiplex PCR analysis, both strains were detected in feces 24 h after either single-dose or daily administration for 7 days. Intestinal mucosa adhesion of L. plantarum 2035 was noted in the large intestine at 24 h after single-dose administration, while it was not detected at 48 h...
June 21, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28634589/hla-class-ia-and-ib-polyreactive-anti-hla-e-igg2a-monoclonal-antibodies-tfl-006-and-tfl-007-suppress-anti-hla-igg-production-by-cd19-b-cells-and-proliferation-of-cd4-t-cells-while-upregulating-tregs
#7
REVIEW
Mepur H Ravindranath
The anti-HLA-E IgG2a mAbs, TFL-006 and TFL-007, reacted with all HLA-I antigens, similar to the therapeutic preparations of IVIg. Indeed, IVIg lost its HLA reactivity, when its HLA-E reactivity was adsorbed out. US-FDA approved IVIg to reduce antibodies in autoimmune diseases. But the mechanism underlying IVIg-mediated antibody reduction could not be ascertained due to the presence of other polyclonal antibodies. In spite of it, the cost prohibitive high or low IVIg is administered to patients waiting for donor organ and for allograft recipients for lowering antiallograft antibodies...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28634480/fc-galactosylation-of-human-immunoglobulin-gamma-isotypes-improves-c1q-binding-and-enhances-complement-dependent-cytotoxicity
#8
Benjamin Peschke, Christian W Keller, Patrick Weber, Isaak Quast, Jan D Lünemann
Binding of the complement component C1q to the CH2 domain of antigen-bound immunoglobulin gamma (IgG) activates the classical complement pathway and depends on its close proximity to Fc fragments of neighboring antibodies. IgG subclasses contain a highly conserved asparagine 297 (N)-linked biantennary glycan within their CH2 domains, the core structure of which can be extended with terminal galactose and sialic acid residues. To investigate whether Fc-glycosylation regulates effector functions of human IgG subclasses, we cloned the antigen-binding region of the CD20-specific monoclonal antibody rituximab into IgG isotype expression vectors...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28634286/conjugate-vaccine-immunotherapy-for-substance-use-disorder
#9
REVIEW
Paul T Bremer, Kim D Janda
Substance use disorder, especially in relation to opioids such as heroin and fentanyl, is a significant public health issue and has intensified in recent years. As a result, substantial interest exists in developing therapeutics to counteract the effects of abused drugs. A promising universal strategy for antagonizing the pharmacology of virtually any drug involves the development of a conjugate vaccine, wherein a hapten structurally similar to the target drug is conjugated to an immunogenic carrier protein...
July 2017: Pharmacological Reviews
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
#10
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 M 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 21, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28633333/anti-natural-octyl-disaccharide-leprosy-idri-diagnostic-ndo-lid-antibodies-as-indicators-of-leprosy-reactions-and-neuritis
#11
Héctor Serrano-Coll, Mónica Muñoz, Juan Camilo Beltrán, Malcolm S Duthie, Nora Cardona-Castro
Background: Leprosy is a complex infectious and neurological disease caused by Mycobacterium leprae. Nerve damage is related to immunological hypersensitivity responses known as leprosy reactions (LRs). Diagnostic tools to predict LRs are not available. We hypothesized that natural octyl disaccharide-leprosy IDRI diagnostic (NDO-LID) would be helpful as an indicator of LRs and neuritis. Methods: To assess the utility of NDO-LID in indicating reactions, ELISA were used to detect specific antibodies in serum samples from 80 Colombian leprosy patients (40 with and 40 without history of LRs)...
March 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28633332/anti-fas2-igm-antibodies-in-fasciola-hepatica-infected-patients-with-positive-igg-serology
#12
Liliya Kazantseva, María Del Pilar García Lázaro, Patricia Herrera-Velit, Jose R Espinoza
Background: Fascioliasis is an infectious disease caused by parasites Fasciola hepatica and F. gigantica. Humans are infected by the consumption of vegetables and water contaminated with the infective form of the parasite. Materials and Methods: In this study, an IgM-ELISA with the cysteine proteinase Fas2 antigen was evaluated with sera from 76 patients infected with F. hepatica, 24 patients with other parasite infections and 84 healthy volunteers. Results: IgM-ELISA resulted in 43% positives in F...
March 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28633071/structural-characterization-of-the-immunostimulatory-exopolysaccharide-produced-by-leuconostoc-mesenteroides-strain-ntm048
#13
Chiaki Matsuzaki, Chikahiro Takagaki, Yusuke Tomabechi, Lennart S Forsberg, Christian Heiss, Parastoo Azadi, Kenji Matsumoto, Toshihiko Katoh, Koji Hosomi, Jun Kunisawa, Kenji Yamamoto, Keiko Hisa
The exopolysaccharide (EPS) produced by probiotic Leuconostoc mesenteroides subsp. mesenteroides strain NTM048 has been reported to be an immunostimulant that enhances mucosal IgA production. In this study, we found that intranasal administration of mice with the EPS and an antigen (ovalbumin) resulted in secretion of antigen-specific IgA and IgG in the airway mucosa and the serum, suggesting that the EPS has the adjuvant activity for use with mucosal vaccination. Methylation analysis coupled to GC-MS, and 1D and 2D NMR spectroscopy revealed that 94% of the EPS consists of an α-(1 → 6) glucan containing 4% of 1→3-linked α-glucose branches...
June 15, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28632279/%C3%AE%C2%B5-polylysine-based-thermo-responsive-adsorbents-for-immunoglobulin-adsorption-desorption-under-mild-conditions
#14
Masashi Maruyama, Keisuke Shibuya
Thermo-responsive adsorbents for immunoglobulin G (IgG) employing ε-polylysine (EPL) as a polymer backbone were developed. The introduction of mercaptoethylpyridine (MEP) as an IgG-binding ligand and hydrophobization of side chains afforded thermo-responsive IgG adsorbents, whose thermo-responsive IgG desorption ratio was up to 88% (EPL/MEP derivative 3m). The changes in surface densities of active MEP groups, which are caused by thermal conformational changes of the adsorbents, play key roles for IgG desorption...
June 20, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28631484/ocular-pharmacokinetics-of-therapeutic-antibodies-given-by-intravitreal-injection-estimation-of-retinal-permeabilities-using-a-3-compartment-semi-mechanistic-model
#15
Laurence A Hutton-Smith, Eamonn A Gaffney, Helen M Byrne, Philip K Maini, Kapil Gadkar, Norman Alan Mazer
Intravitreally (IVT) injected macromolecules for the treatment of age-related macular degeneration must permeate through the inner limiting membrane (ILM) into the retina and through the retinal pigment epithelium (RPE) to enter the choroid. A quantitative understanding of intraocular transport mechanisms, elimination pathways and the effect of molecular size, is currently incomplete. We present a semi-mechanistic, 3-compartment (retina, vitreous and aqueous) pharmacokinetic (PK) model, expressed using linear ordinary differential equations (ODEs), to describe the molecular concentrations following a single IVT injection...
June 20, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28631301/prevention-of-lupus-nephritis-development-in-nzb-nzw-mice-by-selective-blockade-of-cd28
#16
Laetitia Laurent, Awena Lefur, Rozenn Le Bloas, Mélanie Néel, Caroline Mary, Anne Moreau, Nicolas Poirier, Bernard Vanhove, Fadi Fakhouri
Systemic Lupus Erythematosus (SLE) is a chronic systemic inflammatory disease. Autoantibodies (autoAbs) against double-stranded DNA (ds DNA), the hallmark of lupus, are produced and maintained by the interaction between auto-reactive B cells and CD4(+) T cells. This interplay is controlled by the CD28/CD80-86/CTLA-4 axis. Here we investigated whether selective blockade of CD28-CD80/86 co-stimulatory interactions abrogates lupus nephritis development in a murine model of SLE. To this aim, NZB/NZW F1 mice were treated for 3 months, either with an anti-CD28 Fab' fragment or a control Fab'-IgG...
June 20, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28630868/serum-dried-samples-to-detect-dengue-antibodies-a-field-study
#17
Angelica Maldonado-Rodríguez, Othon Rojas-Montes, Guillermo Vazquez-Rosales, Adolfo Chavez-Negrete, Magdalena Rojas-Uribe, Araceli Posadas-Mondragon, Leopoldo Aguilar-Faisal, Ana Maria Cevallos, Beatriz Xoconostle-Cazares, Rosalia Lira
BACKGROUND: Dried blood and serum samples are useful resources for detecting antiviral antibodies. The conditions for elution of the sample need to be optimized for each disease. Dengue is a widespread disease in Mexico which requires continuous surveillance. In this study, we standardized and validated a protocol for the specific detection of dengue antibodies from dried serum spots (DSSs). METHODS: Paired serum and DSS samples from 66 suspected cases of dengue were collected in a clinic in Veracruz, Mexico...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28630781/development-of-neurological-mouse-model-for-toxoplasmosis-using-toxoplasma-gondii-isolated-from-chicken-in-kenya
#18
John Mokua Mose, David Muchina Kamau, John Maina Kagira, Naomi Maina, Maina Ngotho, Adele Njuguna, Simon Muturi Karanja
Animal models for the toxoplasmosis are scarce and have limitations. In this study, a neurological mouse model was developed in BALB/c mice infected intraperitoneally with 15 cysts of a Toxoplasma gondii isolate. The mice were monitored for 42 days and euthanized at different time points. Another group of mice were orally treated with dexamethasone (DXM: 2.66 mg/kg daily, 5.32 mg/kg daily) at 42 days after infection and monitored for a further 42 days. A mortality rate of 15% and 28.6% was observed in mice given 2...
2017: Pathology Research International
https://www.readbyqxmd.com/read/28630706/effects-of-feeding-untreated-pasteurized-and-acidified-waste-milk-and-bunk-tank-milk-on-the-performance-serum-metabolic-profiles-immunity-and-intestinal-development-in-holstein-calves
#19
Yang Zou, Yajing Wang, Youfei Deng, Zhijun Cao, Shengli Li, Jiufeng Wang
BACKGROUND: The present experiment was performed to assess the effects of different sources of milk on the growth performance, serum metabolism, immunity, and intestinal development of calves. Eighty-four Holstein male neonatal calves were assigned to one of the following four treatment groups: those that received bunk tank milk (BTM), untreated waste milk (UWM), pasteurized waste milk (PWM), and acidified waste milk (AWM) for 21 d. RESULTS: Calves in the BTM and AWM groups consumed more starter (P < 0...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28630652/verification-of-b-lymphocyte-activating-factor-s-involvement-in-the-exacerbation-of-insulin-resistance-as-well-as-an-autoimmune-response-in-patients-with-nonalcoholic-steatohepatitis-and-patients-with-hcv-related-chronic-liver-disease
#20
Takashi Himoto, Koji Fujita, Takako Nomura, Joji Tani, Asahiro Morishita, Hirohito Yoneyama, Reiji Haba, Tsutomu Masaki
BACKGROUND: Ten to forty percent of nonalcoholic steatohepatitis (NASH) and HCV-related chronic liver disease (CLD-C) patients have antinuclear antibodies (ANAs). However, the relationship between autoimmune response and insulin resistance remains uncertain among those patients. The primary purpose of this study was to investigate whether or not ANA status was associated with the development of insulin resistance and obesity in NASH and CLD-C patients. METHODS: Degrees of hepatic fibrosis and steatosis were evaluated by the classification proposed by Brunt et al...
2017: Diabetology & Metabolic Syndrome
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