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https://www.readbyqxmd.com/read/28447876/intrinsic-mesenchymal-stem-cell-dysfunction-in-diabetes-mellitus-implications-for-autologous-cell-therapy
#1
Mari van de Vyver
Mesenchymal stem cells derived from bone marrow (BM-MSCs) have multi-functional properties that have made them a promising therapeutic agent for many regenerative, anti-inflammatory, and auto-immune applications. Under chronic pathological conditions, however, BM-MSCs can become functionally compromised due to long term exposure to changes in the systemic and localized stem cell niche micro-environments. In addition to the fact that functionally compromised BM-MSCs may be therapeutically ineffective, the impairment of BM-MSCs is potentially a contributing factor to disease progression and the development of co-morbidities...
April 27, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28438569/methylprednisolone-liver-toxicity-a-new-case-and-a-french-regional-pharmacovigilance-survey
#2
Jérôme Dumortier, Judith Cottin, Caroline Lavie, Olivier Guillaud, Valérie Hervieu, Christine Chambon-Augoyard, Jean-Yves Scoazec, Sandra Vukusic, Thierry Vial
Reported hepatotoxicity induced by corticosteroids is very rare, and the diagnosis is highly challenging in the context of auto-immune disease. We report here a case of high-dose methylprednisolone (MP)-induced acute hepatitis confirmed by liver histology in a patient with multiple sclerosis (MS) and a case series (n=4) notified to the French Pharmacovigilance center of Lyon. In all 5 cases, other common causes of hepatitis were excluded. The causal relationship with MP pulse therapy was supported by the fact that MP was the only culprit drug...
April 21, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28432836/autoimmune-hepatitis-from-current-knowledge-and-clinical-practice-to-future-research-agenda
#3
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/28429613/effect-of-dietary-supplementation-with-carnosic-acid-or-vitamin-e-on-animal-performance-haematological-and-immunological-characteristics-of-artificially-reared-suckling-lambs-before-and-after-road-transport
#4
Lara Morán, Sonia Andrés, Carolina Blanco, Julio Benavides, María Martínez-Valladares, Aidan P Moloney, F Javier Giráldez
To elucidate the influence of dietary carnosic acid (CA) and vitamin E on animal performance, immune response indicators and haematological parameters before and after transport stress, 24 lambs were individually fed ad libitum with milk replacer (MR) using an auto-feeder. Once daily the lambs received MR alone (Group CON, n = 8), MR + 0.096 g CA/kg live weight (LW) (Group CARN, n = 8) or MR + 0.024 g of α-tocopheryl acetate per kg LW (Group VitE, n = 8). After reaching the target slaughter weight (12 ± 0...
April 21, 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28428120/pathogenesis-of-immune-thrombocytopenia
#5
REVIEW
Sylvain Audia, Matthieu Mahévas, Maxime Samson, Bertrand Godeau, Bernard Bonnotte
Immune thrombocytopenia (ITP) is a rare autoimmune disease due to an abnormal T cell response, notably supported by splenic T follicular helper cells, that stimulates the proliferation and differentiation of autoreactive B cells. The antiplatelet autoantibodies they produce facilitate platelet phagocytosis by macrophages, essentially in the spleen. Macrophages contribute to the perpetuation of the auto-immune response as the main antigen-presenting cell during ITP. CD8(+) T cells also participate to thrombocytopenia by increasing platelet apoptosis...
April 17, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28424927/development-of-new-extra-glandular-manifestations-or-associated-auto-immune-diseases-after-establishing-the-diagnosis-of-primary-sj%C3%A3-gren-s-syndrome-a-long-term-study-of-the-antonius-nieuwegein-sj%C3%A3-gren-ans-cohort
#6
E J Ter Borg, J C Kelder
To investigate in a long-term study, the development of new extra-glandular manifestations (EGM) or associated auto-immune diseases (AID) from 1 year after establishing the diagnosis of primary Sjögren's syndrome (pSS). The primary goal was to examine the frequency and type of these manifestations and to find out which demographic, clinical and serological profile was most at risk. All outpatients diagnosed with primary Sjögren's syndrome were included in a retrospective study, with at least one check-up per year, from June 1991 until August 2015...
April 19, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28423227/a-national-survey-of-screening-and-management-of-hypogammaglobulinemia-in-canadian-transplantation-centers
#7
Samuel Bourassa-Blanchette, Greg Knoll, Jason Tay, Christopher Bredeson, Donald W Cameron, Juthaporn Cowan
BACKGROUND: Infection remains one of the most common transplant-related causes of death in patients undergoing transplantation. Secondary hypogammaglobulinemia (HGG) as a component of immune suppression and deficiency is associated with both solid organ (SOT) and hematopoietic cell transplantation (HCT). Available data and clinical experience for the supplementation of immunoglobulin (Ig) in these patients is conflicting, and clinical equipoise accounts for non-uniform practice in the use of Ig treatment...
April 18, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28421005/autoimmune-aspects-of-neurodegenerative-and-psychiatric-diseases-a-template-for-innovative-therapy
#8
REVIEW
Peter de Haan, Hans C Klein, Bert A 't Hart
Neurodegenerative and psychiatric diseases (NPDs) are today's most important group of diseases, surpassing both atherosclerotic cardiovascular disease and cancer in morbidity incidence. Although NPDs have a dramatic impact on our society because of their high incidence, mortality, and severe debilitating character, remarkably few effective interventions have become available. The current treatments, if available, comprise the lifelong intake of general immunosuppressants to delay disease progression or neurotransmitter antagonists/agonists to dampen undesired behaviors...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28419823/genetic-aspects-of-auto-immune-profiles-of-healthy-chickens
#9
Henk K Parmentier, Priscilla S van der Vaart, Mike G B Nieuwland, Huub F J Savelkoul
Auto-antibody profiles binding liver antigens differed between chicken lines divergently selected for specific antibody responses to SRBC, and were affected by ageing suggesting both genetic and environmental effects. Presence and levels of IgM and IgG antibodies binding chicken liver cell lysate (CLL) fragments in plasma at 5 weeks of age from 10 individual full sibs and their parents from 5 Hsrbc and 5 Lsrbc line families was studied to reveal genetic relations. Non-genetic maternal effects were studied by comparing auto-antibody profiles of 36 weeks old hens from 2 other unrelated lines with the profiles from their chicks at hatch...
April 15, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28410768/-small-fiber-neuropathy
#10
V Langlois, A-L Bedat Millet, M Lebesnerais, S Miranda, F Marguet, Y Benhamou, P Marcorelles, H Lévesque
Small fiber neuropathy (SFN) is still unknown. Characterised by neuropathic pain, it typically begins by burning feet, but could take many other expression. SFN affects the thinly myelinated Aδ and unmyelinated C-fibers, by an inherited or acquired mechanism, which could lead to paresthesia, thermoalgic disorder or autonomic dysfunction. Recent studies suggest the preponderant role of ion channels such as Nav1.7. Furthermore, erythromelalgia or burning mouth syndrome are now recognized as real SFN. Various aetiologies of SFN are described...
April 11, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28388912/environmental-pollutants-a-possible-etiology-for-premature-ovarian-insufficiency-a-narrative-review-of-animal-and-human-data
#11
REVIEW
Pauline Vabre, Nicolas Gatimel, Jessika Moreau, Véronique Gayrard, Nicole Picard-Hagen, Jean Parinaud, Roger D Leandri
BACKGROUND: Because only 25% of cases of premature ovarian insufficiency (POI) have a known etiology, the aim of this review was to summarize the associations and mechanisms of the impact of the environment on this pathology. Eligible studies were selected from an electronic literature search from the PUBMED database from January 2000 to February 2016 and associated references in published studies. Search terms included ovary, follicle, oocyte, endocrine disruptor, environmental exposure, occupational exposure, environmental contaminant, pesticide, polyaromatic hydrocarbon, polychlorinated biphenyl PCB, phenol, bisphenol, flame retardant, phthalate, dioxin, phytoestrogen, tobacco, smoke, cigarette, cosmetic, xenobiotic...
April 7, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28387602/nucleoporin-nup88-mos7-is-required-for-manifestation-of-phenotypes-associated-with-the-arabidopsis-chitin-elicitor-receptor-kinase1-mutant-cerk1-4
#12
Bianca Genenncher, Volker Lipka, Elena K Petutschnig, Marcel Wiermer
Arabidopsis nucleoporin MOS7/NUP88 was identified in a forward-genetic screen for components that contribute to auto-immunity of the deregulated Resistance (R) gene mutant snc1, and is required for immunity to biotrophic and hemi-biotrophic pathogens. In a recent study, we showed that MOS7 is also essential to mount a full defense response against the necrotrophic fungal pathogen Botrytis cinerea, suggesting that MOS7 modulates plant defense responses to different types of pathogenic microbes. Here, we extend our analyses of MOS7-dependent plant immune responses and report the genetic requirement of MOS7 for manifestation of phenotypes associated with the CHITIN ELICITOR RECEPTOR KINASE1 (CERK1) mutant cerk1-4...
April 7, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28383839/-posterior-scleritis
#13
A C Chapelle, P Blaise, J-M Rakic
Posterior scleritis, a severe and painful inflammation of the sclera, is an often misdiagnosed pathology due to its clinical polymorphism. An accurate diagnosis is however needed in order to propose an appropriate treatment of the ophthalmologic symptoms and to exclude an associated systemic inflammatory or auto-immune pathology.
July 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28379387/a-new-mhc-linked-susceptibility-locus-for-primary-sj%C3%A3-gren-s-syndrome-mica
#14
Raphael Carapito, Jacques-Eric Gottenberg, Irina Kotova, Meiggie Untrau, Sandra Michel, Lydie Naegely, Ismail Aouadi, Marius Kwemou, Nicodème Paul, Angélique Pichot, James Locke, Simon J Bowman, Bridget Griffiths, Kathy L Sivils, Jean Sibilia, Hidetoshi Inoko, Corinne Micelli-Richard, Gaétane Nocturne, Masao Ota, Wan-Fai Ng, Xavier Mariette, Seiamak Bahram
The association of primary Sjögren's syndrome (pSS) with Major Histocompatibility Complex (MHC) alleles is quintessential of MHC-disease associations. Indeed, although disease associations with classical HLA class I and II alleles/haplotypes are amply documented, further dissection is often prevented by the strong linkage disequilibrium across the entire MHC complex. Here we study the association of pSS, not with HLA genes, but with the non-conventional MHC encoded class I gene, MICA (MHC class I chain-related gene A)...
April 4, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28377495/rig-i-antiviral-signaling-drives-interleukin-23-production-and-psoriasis-like-skin-disease
#15
Huiyuan Zhu, Fangzhou Lou, Qianqian Yin, Yuanyuan Gao, Yang Sun, Jing Bai, Zhenyao Xu, Zhaoyuan Liu, Wei Cai, Fang Ke, Lingyun Zhang, Hong Zhou, Hong Wang, Gang Wang, Xiang Chen, Hongxin Zhang, Zhugang Wang, Florent Ginhoux, Chuanjian Lu, Bing Su, Honglin Wang
Retinoic acid inducible-gene I (RIG-I) functions as one of the major sensors of RNA viruses. DDX58, which encodes the RIG-I protein, has been newly identified as a susceptibility gene in psoriasis. Here, we show that the activation of RIG-I by 5'ppp-dsRNA, its synthetic ligand, directly causes the production of IL-23 and triggers psoriasis-like skin disease in mice. Repeated injections of IL-23 to the ears failed to induce IL-23 production and a full psoriasis-like skin phenotype, in either germ-free or RIG-I-deficient mice...
April 4, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28366787/manduca-sexta-hemolymph-protease-1-activated-by%C3%A2-an%C3%A2-unconventional-non-proteolytic-mechanism-mediates%C3%A2-immune%C3%A2-responses
#16
Yan He, Yang Wang, Fan Yang, Haobo Jiang
Tissue damage or pathogen invasion triggers the auto-proteolysis of an initiating serine protease (SP), rapidly leading to sequential cleavage activation of other cascade members to set off innate immune responses in insects. Recently, we presented evidence that Manduca sexta hemolymph protease-1 zymogen (proHP1) is a member of the SP system in this species, and may activate proHP6. HP6 stimulates melanization and induces antimicrobial peptide synthesis. Here we report that proHP1 adopts an active conformation (*) to carry out its function, without a requirement for proteolytic activation...
March 31, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28361233/rna-seq-analysis-for-transcriptome-profiling-in-response-to-classical-swine-fever-vaccination-in-indigenous-and-crossbred-pigs
#17
Shalu Kumari Pathak, Amit Kumar, G Bhuwana, Vaishali Sah, Vikramadiya Upmanyu, A K Tiwari, A P Sahoo, A R Sahoo, Sajjad A Wani, Manjit Panigrahi, N R Sahoo, Ravi Kumar
In present investigation, differential expression of transcriptome after classical swine fever (CSF) vaccination has been explored at the cellular level in crossbred and indigenous (desi) piglets. RNA Sequencing by Expectation-Maximization (RSEM) package was used to quantify gene expression from RNA Sequencing data, and differentially expressed genes (DEGs) were identified using EBSeq, DESeq2, and edgeR softwares. After analysis, 5222, 6037, and 6210 common DEGs were identified in indigenous post-vaccinated verses pre-vaccinated, crossbred post-vaccinated verses pre-vaccinated, and post-vaccinated crossbred verses indigenous pigs, respectively...
March 30, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28360855/the-p2x7-receptor-interleukin-1-liaison
#18
REVIEW
Anna Lisa Giuliani, Alba C Sarti, Simonetta Falzoni, Francesco Di Virgilio
Interleukin-1β (IL-1β) plays a central role in stimulation of innate immune system and inflammation and in several chronic inflammatory diseases. These include rare hereditary conditions, e.g., auto-inflammatory syndromes, as well as common pathologies, such as type II diabetes, gout and atherosclerosis. A better understanding of IL-1β synthesis and release is particularly relevant for the design of novel anti-inflammatory drugs. One of the molecules mainly involved in IL-1β maturation is the P2X7 receptor (P2X7R), an ATP-gated ion channel that chiefly acts through the recruitment of the NLRP3 inflammasome-caspase-1 complex...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28349935/demographic-associations-for-autoantibodies-in-disease-free-individuals-of-a-european-population
#19
Kadri Haller-Kikkatalo, Kristi Alnek, Andres Metspalu, Evelin Mihailov, Kaja Metsküla, Kalle Kisand, Heti Pisarev, Andres Salumets, Raivo Uibo
The presence of autoantibodies usually precedes autoimmune disease, but is sometimes considered an incidental finding with no clinical relevance. The prevalence of immune-mediated diseases was studied in a group of individuals from the Estonian Genome Project (n = 51,862), and 6 clinically significant autoantibodies were detected in a subgroup of 994 (auto)immune-mediated disease-free individuals. The overall prevalence of individuals with immune-mediated diseases in the primary cohort was 30.1%. Similarly, 23...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28346055/a-to-i-editing-in-disease-is-not-fake-news
#20
Prajakta Bajad, Michael F Jantsch, Liam Keegan, Mary O'Connell
Adenosine deaminases acting on RNA (ADARs) are zinc-containing enzymes that deaminate adenosine bases to inosines within dsRNA regions in transcripts. In short, structured dsRNA hairpins individual adenosine bases may be targeted specifically and edited with up to one hundred percent efficiency, leading to the production of alternative protein variants. However, the majority of editing events occur within longer stretches of dsRNA formed by pairing of repetitive sequences. Here, many different adenosine bases are potential targets but editing efficiency is usually much lower...
March 27, 2017: RNA Biology
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