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Auto immune diseases

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https://www.readbyqxmd.com/read/27919757/dietary-administration-of-bacillus-subtilis-hainup40-enhances-growth-digestive-enzyme-activities-innate-immune-responses-and-disease-resistance-of-tilapia-oreochromis-niloticus
#1
Haitian Liu, Shifeng Wang, Yan Cai, Xiaohui Guo, Zhenjie Cao, Yongzheng Zhang, Shubin Liu, Wei Yuan, Weiwei Zhu, Yu Zheng, Zhenyu Xie, Weiliang Guo, Yongcan Zhou
The probiotic properties of Bacillus subtilis HAINUP40 isolated from the aquatic environment, and the effects of dietary administration of B. subtilis HAINUP40 on the growth performance, intestinal probiotic recovery, digestive enzyme activities, innate immunity and disease resistance of tilapia (Oreochromis niloticus) were evaluated. The probiotic properties investigated include tolerance to simulated gastrointestinal stress, auto-aggregation, cell surface hydrophobicity and extracellular enzyme production...
December 2, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27917626/association-of-new-putative-epitopes-of-myelin-proteolipid-protein-58-74-with-pathogenesis-of-multiple-sclerosis
#2
Zahra Zamanzadeh, Ghasem Ahangari, Mitra Ataei, Samie Pouragahi, Seyed Massood Nabavi, Mehdi Sadeghi, Mohammad Hossein Sanati
Multiple sclerosis (MS) is an autoimmune disease in which auto-reactive T cells react with self-antigens expressed in the central nervous system (CNS). The main cause of MS is unknown. Nonetheless, the most probable theory is based on molecular mimicry, which suggests that some infections can activate T cells against brain auto-antigens like myelin proteolipid protein (PLP) and initiate the disease cascade. This study is conducted to evaluate the activatory effects of PLP58-74 on T lymphocytes and humoral immunity...
October 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27912911/hesperidin-ameliorates-immunological-outcome-and-reduces-neuroinflammation-in-the-mouse-model-of-multiple-sclerosis
#3
Dariush Haghmorad, Mohammad Bagher Mahmoudi, Zohreh Salehipour, Zoleikha Jalayer, Amir Abbas Momtazi Brojeni, Maryam Rastin, Parviz Kokhaei, Mahmoud Mahmoudi
Multiple sclerosis (MS) is the most abundant central nervous system (CNS) inflammatory disease, which is due to the reaction of auto reactive T cells with own myelin proteins, leading to physical disorder and paralysis among people suffering the disease. Hesperidin, a flavanone glycoside found abundantly in citrus fruits possesses a wide range of pharmacological properties including potential anti-inflammatory and anti-cancer effects. This study was designed to reveal the molecular and cellular mechanisms underlying the effect of hesperidin on MS alleviation...
November 26, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27903991/role-of-oxidative-stress-and-inflammatory-factors-in-diabetic-kidney-disease
#4
Esmat Aghadavod, Samaneh Khodadadi, Azar Baradaran, Parto Nasri, Mahmood Bahmani, Mahmoud Rafieian-Kopaei
Diabetic nephropathy (DN) is a serious complication of diabetes mellitus, and its prevalence has been increasing in developed countries. Diabetic nephropathy has become the most common single cause of end-stage renal disease worldwide. Oxidative stress and inflammation factors are hypothesized to play a role in the development of late diabetes complications. Chronic hyperglycemia increases oxidative stress, significantly modifies the structure and function of proteins and lipids, and induces glycoxidation and peroxidation...
November 2016: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/27896829/immunomodulatory-and-immunosuppressive-roles-of-1%C3%AE-25-oh-2d3-in-autoimmune-diseases
#5
REVIEW
Hussaini Alhassan Mohammed, Ali Akbar Saboor-Yaraghi, Abbas Mirshafiey, Haumayon Vahedi, Mohammad Reza Shiri-Shahsavar, Ateke Mousavi Nasl Khameneh
BACKGROUND: Autoimmune diseases are pathological conditions characterized by abnormal. responses, accompanied by auto-antibodies to self-molecules. The roles vitamin D in autoimmune diseases has increased significantly in the recent past from its functions in calcium and phosphate homeostasis, it is now involved in the regulations and proliferations of Th1 and Th17 lymphocyte. 1α,25(OH)2D3 in very important in ameliorations of inflammatory disorders arising from autoimmune diseases, but the mechanism by which this is done is still a bone of contentions...
November 29, 2016: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/27896624/autologous-bone-marrow-stem-cell-transplantation-for-the-treatment-of-ulcerative-colitis-complicated-with-herpes-zoster-a-case-report
#6
Hang Xiang, Xiaomei Zhang, Chao Yang, Wenhuan Xu, Xin Ge, Rong Zhang, Ya Qiu, Wanjun Sun, Fan Li, Tianyuan Xiang, Haixu Chen, Zheng Wang, Qiang Zeng
Ulcerative colitis (UC) is a chronic inflammatory bowel disease with continuous or recurrent symptoms. A 42-year-old male patient with intermittent diarrhea accompanied by bloody mucopurulent stools was admitted to our hospital. The diagnosis of UC was confirmed by a combination of laboratory examination, colonoscopy, and histological assay. The patient developed herpes zoster in the hospital, which challenged traditional treatments. Therefore, we performed an autologous bone marrow cells to modulate the immune system with his permission...
November 28, 2016: Frontiers of Medicine
https://www.readbyqxmd.com/read/27884543/immunometabolism-is-it-under-the-eye-of-the-clock
#7
REVIEW
James O Early, Anne M Curtis
Molecular clocks allow an organism to track time of day, providing the means to anticipate and respond to the daily changes within the environment. In mammals the molecular clock consists of a network of proteins that form auto-regulatory feedback loops that drive rhythms in physiology and behavior. In recent times the extent to which the molecular clock controls key metabolic and immune pathways has begun to emerge. For example, the main clock protein BMAL1 has been linked to mitochondrial metabolism, mitochondrial dynamics and various host defense pathways...
November 21, 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27883079/a-parasite-derived-68-mer-peptide-ameliorates-autoimmune-disease-in-murine-models-of-type-1-diabetes-and-multiple-sclerosis
#8
Maria E Lund, Judith Greer, Aakanksha Dixit, Raquel Alvarado, Padraig McCauley-Winter, Joyce To, Akane Tanaka, Andrew T Hutchinson, Mark W Robinson, Ann M Simpson, Bronwyn A O'Brien, John P Dalton, Sheila Donnelly
Helminth parasites secrete molecules that potently modulate the immune responses of their hosts and, therefore, have potential for the treatment of immune-mediated human diseases. FhHDM-1, a 68-mer peptide secreted by the helminth parasite Fasciola hepatica, ameliorated disease in two different murine models of autoimmunity, type 1 diabetes and relapsing-remitting immune-mediated demyelination. Unexpectedly, FhHDM-1 treatment did not affect the proliferation of auto-antigen specific T cells or their production of cytokines...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27866769/modular-virus-like-particles-for-sublingual-vaccination-against-group-a-streptococcus
#9
Arjun Seth, Il Gyu Kong, Su-Hyun Lee, Jin-Young Yang, Yong-Soo Lee, Yeji Kim, Nani Wibowo, Anton P J Middelberg, Linda H L Lua, Mi-Na Kweon
Infection with Group A streptococcus (GAS)-an oropharyngeal pathogen-leads to mortality and morbidity, primarily among developing countries and indigenous populations in developed countries. The development of safe and affordable GAS vaccines is challenging, due to the presence of various unique GAS serotypes, antigenic variation within the same serotype, and potential auto-immune responses. In the present study, we evaluated the use of a sublingual freeze-dried (FD) formulation based on immunogenic modular virus-like particles (VLPs) carrying the J8 peptide (J8-VLPs) as a potential safe and cost-effective GAS vaccine for inducing protective systemic and mucosal immunity...
December 12, 2016: Vaccine
https://www.readbyqxmd.com/read/27864925/drug-induced-pyoderma-gangrenosum-a-model-to-understand-the-pathogenesis-of-pyoderma-gangrenosum
#10
REVIEW
B C Wu, E D Patel, A G Ortega-Loayza
Pyoderma gangrenosum (PG) is a rare auto-inflammatory condition in which the alteration of neutrophil function and the innate immune response play key roles in its pathogenesis. Cases of PG have been reported in patients being treated with certain medications, which may help us to understand some of the possible pathways involved in the etiology of PG. The aim of this review is to review the cases of PG triggered by certain drugs and try to thoroughly understand the pathogenesis of the disease. To accomplish this, a PubMed search was completed using the following words: pyoderma gangrenosum, neutrophilic dermatosis, pathophysiology, drug-induced pyoderma gangrenosum...
November 19, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27834858/impact-of-microbes-on-the-pathogenesis-of-primary-biliary-cirrhosis-pbc-and-primary-sclerosing-cholangitis-psc
#11
REVIEW
Jochen Mattner
Primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC) represent the major clinical entities of chronic cholestatic liver diseases. Both disorders are characterized by portal inflammation and slowly progress to obliterative fibrosis and eventually liver cirrhosis. Although immune-pathogenic mechanisms have been implicated in the pathogenesis of PBC and PSC, neither disorder is considered to be a classical autoimmune disease, as PSC and PBC patients do not respond to immune-suppressants. Furthermore, the decreased bile flow resulting from the immune-mediated tissue assault and the subsequent accumulation of toxic bile products in PBC and PSC not only perpetuates biliary epithelial damage, but also alters the composition of the intestinal and biliary microbiota and its mutual interactions with the host...
November 9, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27833025/endogenous-polyclonal-anti-il-1-antibody-responses-potentiate-il-1-activity-during-pathogenic-inflammation
#12
Gunther Spohn, Natalia Arenas-Ramirez, Gregory Bouchaud, Onur Boyman
BACKGROUND: Particular neutralizing monoclonal antibodies to certain cytokines act as agonists in vivo by protection of the cytokine's active site and prolongation of cytokine half-life. While this principle might be useful for targeted immunotherapy, its role in the pathogenesis of inflammation and autoimmunity is unclear. OBJECTIVE: We sought to determine whether slight, structurally non-relevant modifications of the prototypic pro-inflammatory cytokine interleukin-1β (IL-1β) during an immune response could elicit polyclonal anti-IL-1β antibody responses that modulated IL-1β's in vivo activity...
November 7, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27821860/identification-of-novel-hla-a-0201-restricted-ctl-epitopes-in-chinese-vitiligo-patients
#13
Tingting Cui, Xiuli Yi, Sen Guo, Fubo Zhou, Ling Liu, Chunying Li, Kai Li, Tianwen Gao
Generalized vitiligo is an autoimmune disease characterized by melanocyte loss, which results in patchy depigmentation of skin and hair. Recent studies suggested the key role of CD8(+)T lymphocytes for mediating immune response in vitiligo through melanocyte differentiation antigens, including tyrosinase, gp100 and MelanA/Mart-1. However, the specific epitopes of these auto-antigens are still unknown. In our study, we predicted the possible HLA-A*0201-restricted nonapeptides overlaying the full-length amino acid sequences of these three known antigens and investigated the lymphocytes reactivity to these nonapeptides by Elispot assay...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27805845/presence-of-auto-reactive-mhc-class-i-restricted-calcium-sensing-receptor-casr-specific-cd8-t-cells-in-idiopathic-hypoparathyroidism
#14
Samrina Mahtab, Utpreksha Vaish, Soma Saha, Archana Singh, Ravinder Goswami, Rajni Rani
CONTEXT: Autoimmunity to Calcium sensing receptor (CaSR) has been implicated in aetiopathogenesis of Idiopathic hypoparathyroidism (IH). While humoral immune responses have been shown, cell mediated auto-immune responses have not been demonstrated. OBJECTIVE: To study CaSR specific cytotoxic T cell responses in PBMCs of IH patients. DESIGN: Twenty four peptides of CaSR (RH1-RH24) were evaluated for their ex-vivo potential to stimulate PBMCs from IH patients and controls in IFN-γ ELISPOT assays...
November 2, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27803386/characterization-of-isoniazid-specific-t-cell-clones-in-patients-with-anti-tuberculosis-drug-related-liver-and-skin-injury
#15
Toru Usui, Xiaoli Meng, Katy Saide, John Farrell, Paul Thomson, Paul Whitaker, John Watson, Neil S French, B Kevin Park, Dean J Naisbitt
Isoniazid, rifampicin, pyrazinamide and ethambutol are commonly used for the treatment of tuberculosis. Drug exposure is occasionally associated with liver and/or skin injury. The aim of this study was to determine whether drug-specific T-cells are detectable in patients with adverse reactions and if so characterize the nature of the T-cell response. PBMC from 6 patients with anti-tuberculosis drug-related adverse reactions (4 liver, 2 skin) were used to detect drug-responsive T-lymphocytes. Positive lymphocyte transformation test and/or ELIspot results were observed with all 6 patients...
November 1, 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/27799873/development-of-auto-antigen-specific-regulatory-t-cells-for-diabetes-immunotherapy
#16
REVIEW
Jianxun Song
CD4(+) regulatory T cells (Tregs) are essential for normal immune surveillance, and their dysfunction can lead to the development of autoimmune diseases, such as type-1 diabetes (T1D). T1D is a T cell-mediated autoimmune disease characterized by islet β cell destruction, hypoinsulinemia, and severely altered glucose homeostasis. Tregs play a critical role in the development of T1D and participate in peripheral tolerance. Pluripotent stem cells (PSCs) can be utilized to obtain a renewable source of healthy Tregs to treat T1D as they have the ability to produce almost all cell types in the body, including Tregs...
October 2016: Immune Network
https://www.readbyqxmd.com/read/27784538/phenotyping-and-auto-antibody-production-by-liver-infiltrating-b-cells-in-primary-sclerosing-cholangitis-and-primary-biliary-cholangitis
#17
Brian K Chung, Bardia T Guevel, Gary M Reynolds, D B R K Gupta Udatha, Eva Kristine Klemsdal Henriksen, Zania Stamataki, Gideon M Hirschfield, Tom Hemming Karlsen, Evaggelia Liaskou
Primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC) are immune-mediated biliary diseases that demonstrate prominent and restricted genetic association with human leukocyte antigen (HLA) alleles. In PBC, anti-mitochondrial antibodies (AMA) are specific and used as diagnostic biomarkers. PSC-relevant auto-antibodies remain controversial despite a distinct HLA association that mirrors archetypical auto-antigen driven disorders. Herein, we compared antibody-secreting B cells (ASCs) in PSC and PBC liver explants to determine if liver-infiltrating ASCs represent an opportune and novel source of disease-relevant auto-antibodies...
October 24, 2016: Journal of Autoimmunity
https://www.readbyqxmd.com/read/27766432/multiple-sclerosis-experimental-models-and-reality
#18
Hans Lassmann, Monika Bradl
One of the most frequent statements, provided in different variations in the introduction of experimental studies on multiple sclerosis (MS), is that "Multiple sclerosis is a demyelinating autoimmune disease and experimental autoimmune encephalomyelitis (EAE) is a suitable model to study its pathogenesis". However, so far, no single experimental model covers the entire spectrum of the clinical, pathological, or immunological features of the disease. Many different models are available, which proved to be highly useful for studying different aspects of inflammation, demyelination, remyelination, and neurodegeneration in the central nervous system...
October 20, 2016: Acta Neuropathologica
https://www.readbyqxmd.com/read/27727326/the-biophysical-characterisation-and-saxs-analysis-of-human-nlrp1-uncover-a-new-level-of-complexity-of-nlr-proteins
#19
Luigi Martino, Louise Holland, Evangelos Christodoulou, Simone Kunzelmann, Diego Esposito, Katrin Rittinger
NOD-like receptors represent an important class of germline-encoded pattern recognition receptors that play key roles in the regulation of inflammatory signalling pathways. They function as danger sensors and initiate inflammatory responses and the production of cytokines. Since NLR malfunction results in chronic inflammation and auto-immune diseases, there is a great interest in understanding how they work on a molecular level. To date, a lot of insight into the biological functions of NLRs is available but biophysical and structural studies have been hampered by the difficulty to produce soluble and stable recombinant NLR proteins...
2016: PloS One
https://www.readbyqxmd.com/read/27725124/serum-concentration-of-cd40l-is-elevated-in-inflammatory-demyelinating-diseases
#20
Xiaonan Zhong, Honghao Wang, Zhiwei Ye, Wei Qiu, Zhengqi Lu, Rui Li, Yaqing Shu, Yanyu Chang, Xueqiang Hu
It is believed that auto-inflammatory activity, including cellular and humoral immunity responses, especially T cell-B cell collaboration, is one of the most important components of the pathogenesis of inflammatory demyelinating disease. CD40L is critical for T cell-B cell collaboration. Actually, serum CD40L levels have been shown to increase in MS. In the present study, serum CD40L levels were measured by an enzyme-linked immunosorbent assay (ELISA) in NMO (n=27) and MS (n=19) patients and controls (n=14)...
October 15, 2016: Journal of Neuroimmunology
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