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https://www.readbyqxmd.com/read/29340806/distribution-of-il28b-and-il10-polymorphisms-as-genetic-predictors-of-treatment-response-in-pakistani-hcv-genotype-3-patients
#1
Humaira Naeemi, Rabia Aslam, Syed Mohsin Raza, Muhammad Aiman Shahzad, Shagufta Naz, Sobia Manzoor, Saba Khaliq
There are over 10 million hepatitis C virus (HCV)-infected patients in Pakistan. For these patients, a combination of interferon with ribavirin is the most economical and easily available treatment. Single-nucleotide polymorphisms in interleukin genes have been reported to be associated with the pathogenesis and clearance of HCV, and sustained virologic response (SVR). An interleukin 28B (IL28B) gene polymorphism has been shown to modify treatment outcomes, but the effects of interleukin 10 (IL10) polymorphisms have not been previously assessed in the Pakistani population...
January 16, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29337420/a-proinflammatory-response-of-bovine-endometrial-epithelial-cells-to-active-sperm-in-vitro
#2
Ahmed Essam Elweza, Mohamed Aboul Ezz, Tomas J Acosta, Anup K Talukder, Takashi Shimizu, Hiroyuki Hayakawa, Masayuki Shimada, Kazuhiko Imakawa, Ahmed Hamed Zaghloul, Akio Miyamoto
In the cow, cryopreserved semen is inseminated into the uterus, and most of sperm are removed by backflow and phagocytes. Nevertheless, the mechanism responsible for sperm phagocytosis is unclear. Here, we used cultured bovine uterine epithelial cells (BUECs) to investigate the uterine response to sperm and the mechanism that activates polymorphonuclear neutrophils (PMNs). BUEC monolayers were co-cultured with different numbers of washed sperm obtained from cryopreserved semen (104 , 105 and 106 sperm/ml) for 3 h...
January 16, 2018: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29334679/the-il20-genetic-polymorphism-is-associated-with-altered-clinical-outcome-in-septic-shock
#3
Taka-Aki Nakada, Petch Wacharasint, James A Russell, John H Boyd, Emiri Nakada, Simone A Thair, Tadanaga Shimada, Keith R Walley
BACKGROUND: The IL10 family of genes includes crucial immune regulators. We tested the hypothesis that single nucleotide polymorphisms (SNPs) in IL10, IL19, IL20, and IL24 of the IL10 family gene cluster alter the clinical outcome of septic shock. METHODS: Patients with septic shock (n = 1,193) were genotyped for 13 tag SNPs of IL10, IL19, IL20, and IL24. IL20 gene expression was measured in genotyped lymphoblastoid cells in vitro. Cardiac surgical ICU patients (n = 981) were genotyped for IL20 rs2981573 A/G...
January 16, 2018: Journal of Innate Immunity
https://www.readbyqxmd.com/read/29329953/canine-macrophages-can-like-human-macrophages-be-in-vitro-activated-toward-the-m2a-subtype-relevant-in-allergy
#4
Ina Herrmann, Jelena Gotovina, Judit Fazekas-Singer, Michael B Fischer, Karin Hufnagl, Rodolfo Bianchini, Erika Jensen-Jarolim
The M2a subtype of macrophages plays an important role in human immunoglobulin E (IgE-mediated allergies) and other Th2 type immune reactions. In contrast, very little is known about these cells in the dog. Here we describe an in-vitro method to activate canine histiocytic DH82 cells and primary canine monocyte-derived macrophages (MDMs) toward the M2a macrophages using human cytokines. For a side-by-side comparison, we compared the canine cells to human MDMs, and the human monocytic cell line U937 activated towards M1-and M2a cells on the cellular and molecular level...
January 9, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29325450/symptom-science-omics-supports-common-biological-underpinnings-across-symptoms
#5
Maura K McCall, Ansley Grimes Stanfill, Elizabeth Skrovanek, Jessica Renee Pforr, Susan W Wesmiller, Yvette P Conley
For precision health care to be successful, an in-depth understanding of the biological mechanisms for symptom development and severity is essential. Omics-based research approaches facilitate identification of the biological underpinnings of symptoms. We reviewed literature for omics-based approaches and exemplar symptoms (sleep disruption, cognitive impairment, fatigue, gastrointestinal [GI] distress, and pain) to identify genes associated with the symptom or symptoms across disease processes. The review yielded 27 genes associated with more than one symptom...
January 1, 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29317916/exposure-to-no2-co-and-pm2-5-is-linked-to-regional-dna-methylation-differences-in-asthma
#6
Mary Prunicki, Laurel Stell, Deendayal Dinakarpandian, Mariangels de Planell-Saguer, Richard W Lucas, S Katharine Hammond, John R Balmes, Xiaoying Zhou, Tara Paglino, Chiara Sabatti, Rachel L Miller, Kari C Nadeau
Background: DNA methylation of CpG sites on genetic loci has been linked to increased risk of asthma in children exposed to elevated ambient air pollutants (AAPs). Further identification of specific CpG sites and the pollutants that are associated with methylation of these CpG sites in immune cells could impact our understanding of asthma pathophysiology. In this study, we sought to identify some CpG sites in specific genes that could be associated with asthma regulation (Foxp3 and IL10) and to identify the different AAPs for which exposure prior to the blood draw is linked to methylation levels at these sites...
2018: Clinical Epigenetics
https://www.readbyqxmd.com/read/29314322/association-between-pro-inflammatory-alleles-and-allergic-phenotypes-in-xhosa-adolescents
#7
Craig Laurence, Lize van der Merwe, Guicheng Zhang, Peter LeSouëf, Michael Levin
BACKGROUND: Significant differences exist in the prevalence, spectrum and severity of allergic diseases between developing and developed countries and between sub-populations within single countries. These discrepancies likely result from a complex interaction between genetic and environmental factors. However, the precise nature of the contribution of ethnicity to genetic differences in the predisposition to allergic disease is not yet fully understood. In particular, there is a paucity of literature regarding the genetic determinants of allergic disease in people of black African origin with little or no genetic admixture...
January 4, 2018: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29311626/lipopolysaccharide-and-lipotheicoic-acid-differentially-modulate-epididymal-cytokine-and-chemokine-profiles-and-sperm-parameters-in-experimental-acute-epididymitis
#8
Erick J R Silva, Camilla M Ribeiro, André F M Mirim, Alan A S Silva, Renata M Romano, Jorge Hallak, Maria Christina W Avellar
Bacterial infections are the most prevalent etiological factors of epididymitis, a commonly diagnosed inflammatory disease in the investigation of male infertility factors. The influence of early pathogenic mechanisms at play during bacterial epididymitis on reproductive outcomes is little understood. We report here that experimental epididymitis induced in rats by Gram-negative (LPS) and Gram-positive (LTA) bacterial products resulted in differential patterns of acute inflammation in the cauda epididymis. LPS elicited a strong inflammatory reaction, as reflected by upregulation of levels of mRNA for seven inflammatory mediators (Il1b, Tnf, Il6, Ifng, Il10, Nos2 and Nfkbia), and tissue concentration of six cytokines/chemokines (IL1A, IL1B, IL6, IL10, CXCL2 and CCL2) within the first 24 h post-treatment...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29309766/heme-oxygnease-1-induction-by-methylene-blue-protects-raw264-7-cells-from-hydrogen-peroxide-induced-injury
#9
Xiao-Tong Zhang, Xue-Qiang Sun, Chen Wu, Jun-Liang Chen, Jia-Jia Yuan, Qing-Feng Pang, Zhi-Ping Wang
Althoughmethylene blue (MB) has showed strong antioxidant effect, its effect related with heme oxygenase-1(HO-1) is still unclear. Thus, we investigated the effects of MB on HO-1 protein content and enzyme activity, and its protective effect against hydrogen peroxide (H2O2)- induced oxidative damage in RAW264.7 macrophage. The cellviability and the release of lactate dehydrogenase of RAW264.7 were determined. The mitochondrial functions were valuated through these indexes: content of adenosine triphosphate, superoxide dismutase, concentration of reactive oxygen species and mitochondrial membrane potential...
January 5, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29308326/depletion-of-tumor-associated-macrophages-switches-the-epigenetic-profile-of-pancreatic-cancer-infiltrating-t-cells-and-restores-their-anti-tumor-phenotype
#10
Simone Borgoni, Andrea Iannello, Santina Cutrupi, Paola Allavena, Maurizio D'Incalci, Francesco Novelli, Paola Cappello
Pancreatic Ductal Adenocarcinoma (PDA) is characterized by a complex tumor microenvironment that supports its progression, aggressiveness and resistance to therapies. The delicate interplay between cancer and immune cells creates the conditions for PDA development, particularly due to the functional suppression of T cell anti-tumor effector activity. However, some of the mechanisms involved in this process are still poorly understood. In this study, we analyze whether the functional and epigenetic profile of T cells that infiltrate PDA is modulated by the microenvironment, and in particular by tumor-associated macrophages (TAMs)...
2018: Oncoimmunology
https://www.readbyqxmd.com/read/29306532/association-between-apical-periodontitis-and-interleukin-gene-polymorphisms-a-systematic-review-and-meta-analysis
#11
REVIEW
Alessandro G Salles, Lívia A A Antunes, Erika Calvano Küchler, Leonardo S Antunes
INTRODUCTION: Genetic polymorphisms may result in altered gene expression or functional changes of the encoded molecules and could possibly generate a deficient immunity. Consequently, individuals with specific genotypes could be more susceptible to disease or could present an increase in disease severity. Our study is aimed to verify, through a systematic review and meta-analysis registered in the PROSPERO database (CRD42016043905), whether currently available evidence supports a relationship between interleukin gene polymorphisms and apical periodontitis (AP)...
January 3, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29301939/interleukin-10-suppresses-lysosome-mediated-killing-of-brucella-abortus-in-cultured-macrophages
#12
Huynh Tan Hop, Alisha Wehdnesday Bernardo Reyes, Tran Xuan Ngoc Huy, Lauren Togonon Arayan, WonGi Min, Hu Jang Lee, Man Hee Rhee, Hong Hee Chang, Suk Kim
Brucella abortus is a Gram-negative zoonotic pathogen for which there is no 100% effective vaccine. Phagosomes in B. abortus-infected cells fail to mature allowing the pathogen to survive and proliferate. Interleukin 10 (IL-10) promotes B. abortus persistence in macrophages by mechanisms that are not fully understood. In this study, we investigated the regulatory role of IL-10 in the immune response to B. abortus infection. B. abortus-infected macrophages were treated with either IL10 siRNA or recombinant IL-10 (rIL-10) and the expression of phagolysosome- or inflammation-related genes was evaluated by qRT-PCR and Western blot...
January 4, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29298134/the-synergistic-effect-of-tnfa-and-il10-promoter-polymorphisms-on-genetic-predisposition-to-systemic-lupus-erythematosus
#13
Irena Manolova, Lyuba Miteva, Mariana Ivanova, Todor Kundurzhiev, Rumen Stoilov, Spaska Stanilova
AIMS: We investigated the individual and combined effect of functional TNFA -308G/A and IL10 -1082G/A single nucleotide polymorphisms (SNPs) and their genotypes on the susceptibility to systemic lupus erythematosus (SLE) in a Bulgarian population. MATERIALS AND METHODS: Genotyping for -1082A/G IL10 (rs1800896) and -308G/A TNFA (rs1800629) polymorphisms was performed for 154 SLE patients and 224 healthy controls. RESULTS: An association between SLE and the rs1800629 polymorphism was established under the allelic model (allele A vs...
January 3, 2018: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/29297316/a-database-of-human-genes-and-a-gene-network-involved-in-response-to-tick-borne-encephalitis-virus-infection
#14
Elena V Ignatieva, Alexander V Igoshin, Nikolay S Yudin
BACKGROUND: Tick-borne encephalitis is caused by the neurotropic, positive-sense RNA virus, tick-borne encephalitis virus (TBEV). TBEV infection can lead to a variety of clinical manifestations ranging from slight fever to severe neurological illness. Very little is known about genetic factors predisposing to severe forms of disease caused by TBEV. The aims of the study were to compile a catalog of human genes involved in response to TBEV infection and to rank genes from the catalog based on the number of neighbors in the network of pairwise interactions involving these genes and TBEV RNA or proteins...
December 28, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29290424/changes-in-gene-expression-in-the-rumen-and-colon-epithelia-during-the-dry-period-through-lactation-of-dairy-cows-and-effects-of-live-yeast-supplementation
#15
A Bach, I Guasch, G Elcoso, F Chaucheyras-Durand, M Castex, F Fàbregas, E Garcia-Fruitos, A Aris
The objectives of this study were (1) to use endoscopy to collect biopsies from the rumen and colon epithelia to describe changes in gene expression in these 2 tissues as cows move from a dry to a lactation ration and (2) to evaluate the potential influence that supplementation of live yeast could exert on these 2 epithelia. Twenty-one Holstein cows were split into 2 treatments and received either 300 g/d of corn containing 1 × 1010 cfu/d of live yeast (LY; n = 10) or 300 g/d of corn with no supplementation (control; n = 11) starting 21 ± 2...
December 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29288696/cytokine-gene-polymorphisms-in-iraqi-arabs
#16
Ali H Ad'hiah, Zahra'a A Ahmed, Milad A Al-Naseri, Ehab D Salman, Osama B Al-Saffar, Hiba S Ahmed, Talib A Hussain, Ekhlass M Idan, Ibtesam B Hassan, Batool A Shihab, Lateef O Mohammed, Fatima S Al-Nasiri
In this report, 224 unrelated healthy Iraqi Arabs (102 males and 122 females) were genotyped for 22 SNPs (single nucleotide polymorphisms) belong to 13 cytokine genes (IL1A, IL1B, IL1RA, IL1R, IL2, IL4, IL4R, IL6, IL10, IL12, IFNG, TNFA and TGFB1). The method of detection was PCR-SSP (polymerase chain reaction-sequence specific primer). The data were presented in terms of allele and genotype frequencies. Two-locus haplotype frequencies were also estimated for some SNPs. Genotype frequencies of detected cytokine gene polymorphisms are available in the Database of Allele Frequencies Net under the AFND number 3422 and the population name "Iraq Arab Cytokine"...
December 27, 2017: Human Immunology
https://www.readbyqxmd.com/read/29284469/both-inflammatory-and-regulatory-cytokine-responses-to-malaria-are-blunted-with-increasing-age-in-highly-exposed-children
#17
Lila Farrington, Hilary Vance, John Rek, Mary Prahl, Prasanna Jagannathan, Agaba Katureebe, Emmanuel Arinaitwe, Moses R Kamya, Grant Dorsey, Margaret E Feeney
BACKGROUND: Young children are at greatest risk for malaria-associated morbidity and mortality. The immune response of young children differs in fundamental ways from that of adults, and these differences likely contribute to the increased susceptibility of children to severe malaria and to their delayed development of immunity. Elevated levels of pro-inflammatory cytokines and chemokines in the peripheral blood during acute infection contribute to the control of parasitaemia, but are also responsible for much of the immunopathology seen during symptomatic disease...
December 29, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29281649/human-adipose-derived-stem-cells-regress-fibrosis-in-a-chronic-renal-fibrotic-model-induced-by-adenine
#18
Juan José Rivera-Valdés, Jesus García-Bañuelos, Adriana Salazar-Montes, Leonel García-Benavides, Alfredo Rosales-Dominguez, Juan Armendáriz-Borunda, Ana Sandoval-Rodríguez
BACKGROUND AND AIMS: ADSCs transplantation had been shown in some experimental models of kidney damage that it improves kidney function and reduces fibrosis. In this study we evaluated the effect of human adipose tissue-derived stem cell (hADSC) therapy in a chronic kidney damage experimental model. METHODS: A chronic kidney injury was induced by daily orogastric administration of adenine (100mg/kg) to male Wistar rats for 28 days. hADSCs were isolated, expanded and characterized before transplantation...
2017: PloS One
https://www.readbyqxmd.com/read/29280261/deproteinized-bovine-bone-matrix-induces-osteoblast-differentiation-via-macrophage-polarization
#19
Miusi Shi, Can Wang, Yulan Wang, Cuizhu Tang, Richard J Miron, Yufeng Zhang
Bone grafts are widely used in bone regeneration to increase the speed and quality of new bone formation. While they are routinely characterized based on their biocompatible and bioactive properties, they also exert a profound impact on host immune responses, which in turn can display a significant effect on the healing and repair process. In this study, we investigated the role of macrophage behavior on deproteinized bovine bone matrix (DBBM, BioOss) to investigate their impact on creating either a pro- or anti-inflammatory micro-environment for tissue integration...
December 27, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29273022/on-line-hemodiafiltration-did-not-induce-an-overproduction-of-oxidative-stress-and-inflammatory-cytokines-in-intensive-care-unit-acute-kidney-injury
#20
Kada Klouche, Laurent Amigues, Marion Morena, Vincent Brunot, Anne Marie Dupuy, Audrey Jaussent, Marie Christine Picot, Noémie Besnard, Delphine Daubin, Jean Paul Cristol
BACKGROUND: Though on-line intermittent hemodiafiltration (OL-IHDF) is a routine therapy for chronic dialysis patients, it is not yet widespread used in critically ill patients. This study was undergone to evaluate efficiency and tolerance of OL-IHDF and to appreciate inflammatory consequences of its use in intensive care unit (ICU)-acute kidney injury (AKI) patients. METHODS: In this prospective cohort study conducted in a medical academic ICU in France, 30 AKI patients who underwent OL-IHDF were included...
December 22, 2017: BMC Nephrology
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