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Autoimmunity

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https://www.readbyqxmd.com/read/28432858/regulatory-function-of-parasites-in-autoimmune-disease-%C3%A2-outcome-from-experimental-model-infection
#1
Katarzyna Krawczak, Katarzyna Donskow-Łysoniewska, Maria Doligalska
It is estimated that more than half of the nowadays known species are pathogenic parasites. Among macroparasites gastrointestinal nematodes are one of most common and having significant impact on life and health. Those organisms reveal strong, specific immune response in host, involving primary mechanisms associated with regulatory and Th2 cells. Referring to immunomodulatory abilities of helminths, parasite infections started to be considered as a possible therapy for many autoimmune diseases. Clinical trials on 2nd and 3rd stage are conducted in spite that treatment has not been recognized as safe for common use...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/28432836/autoimmune-hepatitis-from-current-knowledge-and-clinical-practice-to-future-research-agenda
#2
REVIEW
Marcial Sebode, Johannes Hartl, Diego Vergani, Ansgar W Lohse
Autoimmune hepatitis (AIH) is a chronic inflammatory liver disease. Unknown triggers lead to a mainly T cell-mediated immune response targeting the liver, the main auto-antigen of which has not been identified yet. The diagnosis of AIH is based on the elevation of immunoglobulin G / hypergammaglobulinemia, detection of characteristic autoantibodies as well as a typical pattern on liver histology. Exclusion of other causes of hepatitis and response to immunosuppressive treatment support the diagnosis of AIH...
April 22, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28432736/severe-primary-autoimmune-thrombocytopenia-itp-in-pregnancy-a-national-cohort-study
#3
A Care, S Pavord, M Knight, Z Alfirevic
OBJECTIVE: To quantify UK incidence of severe ITP in pregnancy, determine current treatment strategies and establish maternal and neonatal morbidity and mortality associated with severe ITP in pregnancy. DESIGN: A prospective national cohort study SETTING: United Kingdom POPULATION: Women with severe ITP; defined as platelets <50 x 10(9) /l in pregnancy or antenatal treatment of isolated low platelets. METHODS: Data collected via United Kingdom Obstetric Surveillance System (UKOSS) between 1(st) June 2013-31(st) January 2015 from all UK Consultant led obstetric units...
April 22, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28432597/t-regulatory-cells-in-bone-remodelling
#4
REVIEW
Aline Bozec, Mario M Zaiss
PURPOSE OF THE REVIEW: In this review, we present the role of regulatory T (Treg) cells in bone remodelling and bone-related disease such as osteoporosis or inflammatory bone loss. We also discuss the cellular and molecular mechanism how Treg cells regulate osteoclastogenesis. RECENT FINDINGS: Treg cells could regulate osteoclastogenesis by secreting TGF-β and IL-10 as well as IL-4 cytokines. Moreover, Treg cells can additionally regulate osteoclast differentiation, in a cell-to-cell contact via the cytotoxic T lymphocyte antigen (CTLA-4)...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28432580/corneal-melting-in-rheumatoid-arthritis-patients-treated-with-a-tectonic-reinforcing-corneolimbal-graft-an-interventional-case-series
#5
Eitan Livny, Michael Mimouni, Irit Bahar, Yair Molad, Assaf Gershoni, Israel Kremer
PURPOSE: Corneal melting with perforation is a severe ophthalmic complication of autoimmune disorders such as rheumatoid arthritis. It requires urgent medical management in order to maintain the integrity of the globe and preserve vision. Treating this complication by penetrating keratoplasty is problematic due to the high rate of recurrence of corneal melting as well as other complications. We describe the use of a tectonic fresh-tissue corneolimbal covering graft. METHODS: An interventional case series including three patients that presented to our tertiary center between 2000 and 2015 with corneal melting and perforation, secondary to rheumatoid arthritis...
April 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28432571/cell-therapy-for-type-1-diabetes-current-and-future-strategies
#6
REVIEW
Yasaman Aghazadeh, Maria Cristina Nostro
PURPOSE OF THE REVIEW: Type 1 diabetes (T1D) is defined by an autoimmune destruction of insulin producing β-cells located in the endocrine part of the pancreas, the islets of Langerhans. As exogenous insulin administration fails at preventing severe complications associated with this disease, cell replacement therapies are being considered as a means to treat T1D. The purpose of this manuscript is to review the challenges associated with current strategies and discuss the potential of stem cell therapy for the treatment of T1D...
June 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28432342/hypermethylation-of-interferon-regulatory-factor-8-irf8-confers-risk-to-vogt-koyanagi-harada-disease
#7
Yiguo Qiu, Hongsong Yu, Yunyun Zhu, Zi Ye, Jing Deng, Wencheng Su, Qingfeng Cao, Gangxiang Yuan, Aize Kijlstra, Peizeng Yang
Aberrant methylation change of IRF8 confers risk to various tumors, and abnormal expression of IRF8 is involved in many autoimmune diseases, including ocular Behcet's disease. However, whether the methylation change of IRF8 is associated with Vogt-Koyanagi-Harada (VKH) disease remains unknown. In the present study, we found a decreased IRF8 mRNA expression in association with a higher methylation level in monocyte-derived dendritic cells (DCs) from active VKH patients compared with the normal and inactive subjects...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432156/epidemiology-of-valvular-heart-disease-in-a-swedish-nationwide-hospital-based-register-study
#8
Pontus Andell, Xinjun Li, Andreas Martinsson, Charlotte Andersson, Martin Stagmo, Bengt Zöller, Kristina Sundquist, J Gustav Smith
OBJECTIVE: Transitions in the spectrum of valvular heart diseases (VHDs) in developed countries over the 20th century have been reported from clinical case series, but large, contemporary population-based studies are lacking. METHODS: We used nationwide registers to identify all patients with a first diagnosis of VHD at Swedish hospitals between 2003 and 2010. Age-stratified and sex-stratified incidence of each VHD and adjusted comorbidity profiles were assessed...
April 21, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28432047/delayed-lgi1-seropositivity-in-voltage-gated-potassium-channel-vgkc-complex-antibody-limbic-encephalitis
#9
Michael Sweeney, Jonathan Galli, Scott McNally, Anne Tebo, Thomas Haven, Perla Thulin, Stacey L Clardy
We utilise a clinical case to highlight why exclusion of voltage-gated potassium channel (VGKC)-complex autoantibody testing in serological evaluation of patients may delay or miss the diagnosis. A 68-year-old man presented with increasing involuntary movements consistent with faciobrachial dystonic seizures (FBDS). Initial evaluation demonstrated VGKC antibody seropositivity with leucine-rich glioma-inactivated 1 (LGI1) and contactin-associated protein-like 2 (CASPR2) seronegativity. Aggressive immunotherapy with methylprednisolone and plasmapheresis was started early in the course of his presentation...
April 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28431992/genomic-answers-for-recurrent-spontaneous-abortion-in-saudi-arabia-an-array-comparative-genomic-hybridization-approach
#10
Sajjad Karim, Hasan Salleh Jamal, Abdullraheem Rouzi, Mohammed Salleh M Ardawi, Hans-Juergen Schulten, Zeenat Mirza, Nuha A Alansari, Maha M Al-Quaiti, Heba Abusamra, Muhammad Imran Naseer, Rola Turki, Adeel Gulzar Chaudhary, Mamdooh Gari, Adel Mohammed Abuzenadah, Mohammed Hussain Al-Qhatani
To study the genomics/genetic factors associated with recurrent spontaneous abortion (RSA), as ∼50% of RSA are unexplained. However, chromosome abnormalities have been reported to play major role in RSA. We performed whole genome array-CGH based genomic analysis of forty four Saudi RSA patients to identify potential molecular and chromosomal abnormalities. We identified a total of 845 alterations, usually not detected by classic cytogenetic methods, in different genomic regions using a cut off value of -0...
April 18, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28431892/a-humanized-hla-dr4-mouse-model-for-autoimmune-myocarditis
#11
M Emrah Şelli, Anita C Thomas, David C Wraith, Andrew C Newby
Myocarditis, the principal cause of dilated cardiomyopathy and heart failure in young adults, is associated with autoimmunity to human cardiac α-myosin (hCAM) and the DR4 allele of human major histocompatibility II (MHCII). We developed an hCAM-induced myocarditis model in human HLA-DR4 transgenic mice that lack all mouse MHCII genes, demonstrating that immunization for 3weeks significantly increased splenic T-cell proliferative responses and titres of IgG1 and IgG2c antibodies, abolished weight gain, provoked cardiac inflammation and significantly impaired cardiac output and fractional shortening, by echocardiography, compared to adjuvant-injected mice...
April 18, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28431875/protein-oxidation-and-autoantibodies-reactivity-against-malondialdehyde-and-hydrogen-peroxide-modified-thyroid-antigens-in-plasma-of-patients-with-graves-disease-and-hashimoto-thyroiditis
#12
Malek Mseddi, Riadh Ben Mansour, Bochra Gargouri, Fatma Mnif, Samir El Ghawi, Boutheina Hammami, Abdelmonem Ghorbel, Mohamed Abid, Saloua Lassoued
The aim of this study was first to investigate the oxidative proteins modifications in the plasma of both autoimmune thyroid diseases (AITD), Graves' disease (GD) and Hashimoto Thyroiditis (HT). Then, the impact of these oxidative modifications on immune response was evaluated by measuring the reactivity of patients' autoantibodies against malondialdéhyde (MDA) and Hydrogen peroxide (H2O2) modified thyroid antigens (T.Ag) in comparison to native ones. Carbonyl and thiol groups, and MDA-protein adducts were first assessed among 74 AITD patients and 65 healthy controls...
April 18, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28431796/lessons-learned-from-twins-in-autoimmune-and-chronic-inflammatory-diseases
#13
REVIEW
Elena Generali, Angela Ceribelli, Maria Antonietta Stazi, Carlo Selmi
Autoimmunity and chronic inflammation recognize numerous shared factors and, as a result, the resulting diseases frequently coexist in the same patients or respond to the same treatments. Among the convenient truths of autoimmune and chronic inflammatory diseases, there is now agreement that these are complex conditions in which the individual genetic predisposition provides a rate of heritability. The concordance rates in monozygotic and dizygotic twins allows to estimate the weight of the environment in determining disease susceptibility, despite recent data supporting that only a minority of immune markers depend on hereditary factors...
April 18, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28431765/immune-modulation-by-vitamin-d-special-emphasis-on-its-role-in-prevention-and-treatment-of-cancer
#14
REVIEW
Franco Pandolfi, Laura Franza, Claudia Mandolini, Pio Conti
PURPOSE: Vitamin D has been known to be involved in mineral and bone homeostasis for many years. In the past its main use was in treating osteoporosis and rickets. In recent years it was found that vitamin D is an immune-modulating agent and may also have a role in several diseases, including autoimmune diseases. The immune-modulating effects appear to be mediated by vitamin D interaction with the vitamin D receptor (VDR) that has transcriptional effects and is expressed on various cell types, especially those of the immune system...
April 18, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28431621/two-decades-of-glatiramer-acetate-from-initial-discovery-to-the-current-development-of-generics
#15
REVIEW
Bianca Weinstock-Guttman, Kavita V Nair, Joseph L Glajch, Tanmoy C Ganguly, Daniel Kantor
Multiple sclerosis (MS) is a chronic, incurable, inflammatory disease of the central nervous system (CNS). In the United States, several US Food and Drug Administration (FDA)-approved disease-modifying treatments (DMTs) are available, including glatiramer acetate (GA; Copaxone®), one of the most longstanding treatments. GA was discovered serendipitously in the late 1960s/early 1970s while attempting to produce a synthetic antigen capable of inducing experimental autoimmune encephalomyelitis (EAE), an animal model of autoimmune inflammatory CNS disorders, including MS...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431604/a-reappraisal-of-diagnostic-tests-for-myasthenia-gravis-in-a-large-asian-cohort
#16
Yew Long Lo, Raymond P Najjar, Kelvin Y Teo, Sharon L Tow, Jing Liang Loo, Dan Milea
BACKGROUND: Myasthenia gravis (MG) is a chronic autoimmune neuromuscular disease characterized by weakness of bodily skeletal muscles. Office-based diagnostic tests such as repetitive nerve stimulation (RNS), single fiber electromyography (SFEMG), and the ice test, are used to refine the differential clinical diagnosis of this disease. Evaluating the clinical sensitivity and specificity of these tests, however, may be confounded by lack of a gold standard, non-blinding, incorporation bias, use of non-representative populations and retrospective data...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431280/interleukin-1-receptor-associated-kinase-1-is-a-potential-therapeutic-target-of-anti-inflammatory-therapy-for-systemic-lupus-erythematosus
#17
Mingfang Li, Datang Yu, Bing Ni, Fei Hao
Systemic lupus erythematosus (SLE) is a chronic autoimmune inflammatory disease and currently has no effective therapy. The genome-wide analyses indicate that interleukin-1 receptor associated kinase 1 (IRAK1) is associated with the susceptibility of SLE in humans. In the present study, we identified that IRAK1 was overexpressed and hyper-activated in splenic mononuclear cells from B6.MRL-Fas(lpr)/Nju (B6.lpr) mice and peripheral blood mononuclear cells (PBMCs) from SLE patients. Intraperitoneal treatment with a small molecular inhibitor of IRAK1 (IRAK1/4 inhibitor or IRAK-Inh) significantly mitigated inflammatory responses and renal injury in B6...
April 18, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28431241/akt-pkb-signaling-navigating-the-network
#18
REVIEW
Brendan D Manning, Alex Toker
The Ser and Thr kinase AKT, also known as protein kinase B (PKB), was discovered 25 years ago and has been the focus of tens of thousands of studies in diverse fields of biology and medicine. There have been many advances in our knowledge of the upstream regulatory inputs into AKT, key multifunctional downstream signaling nodes (GSK3, FoxO, mTORC1), which greatly expand the functional repertoire of AKT, and the complex circuitry of this dynamically branching and looping signaling network that is ubiquitous to nearly every cell in our body...
April 20, 2017: Cell
https://www.readbyqxmd.com/read/28430646/immunotherapeutic-target-expression-on-breast-tumors-can-be-amplified-by-hormone-receptor-antagonism-a-novel-strategy-for-enhancing-efficacy-of-targeted-immunotherapy
#19
Ritika Jaini, Matthew G Loya, Charis Eng
Immunotherapy has historically been successful in highly antigenic tumors but has shown limited therapeutic efficacy in non-antigenic tumors such as breast cancers. Our previous studies in autoimmunity have demonstrated that increased antigen load within a tissue enhances immune reactivity against it. We therefore hypothesized that enhancing expression of target proteins on breast tumors can increase efficacy of targeted immunotherapy. We hypothesized that antagonism of the estrogen receptor (ER) can increase expression of targets that are hormonally regulated and facilitate enhanced tumor recognition by targeted immunotherapy...
March 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430123/functional-analysis-of-the-rs774872314-rs116171003-rs200231898-and-rs201107751-polymorphisms-in-the-human-ror%C3%AE-t-gene-promoter-region
#20
Marcin Ratajewski, Marcin Słomka, Kaja Karaś, Marta Sobalska-Kwapis, Małgorzata Korycka-Machała, Anna Sałkowska, Jarosław Dziadek, Dominik Strapagiel, Jarosław Dastych
RAR-related orphan receptor gamma RORγT, a tissue-specific isoform of the RORC gene, plays a critical role in the development of naive CD4+ cells into fully differentiated Th17 lymphocytes. Th17 lymphocytes are part of the host defense against numerous pathogens and are also involved in the pathogenesis of inflammatory diseases, including autoimmune disorders. In this study, we functionally examined four naturally occurring polymorphisms located within one of the previously identified GC-boxes in the promoter region of the gene...
April 21, 2017: Genes
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