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https://www.readbyqxmd.com/read/28346921/bacterial-colonization-of-the-newborn-gut-immune-development-and-prevention-of-disease
#1
W Allan Walker
We now know that the fetus does not reside in a sterile intrauterine environment but is exposed to commensal bacteria from the maternal gut which cross the placenta and infiltrate the amniotic fluid. This exposure to colonizing bacteria continues at birth and during the first year of life, and it has a profound influence on lifelong health. Why is this important? Cross talk with colonizing bacteria in the developing neonatal intestine helps in the initial adaptation of the infant to extrauterine life, particularly in acquiring immune homeostasis, and provides protection against disease expression (e...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346408/gut-microbial-metabolites-limit-the-frequency-of-autoimmune-t-cells-and-protect-against-type-1-diabetes
#2
Eliana Mariño, James L Richards, Keiran H McLeod, Dragana Stanley, Yu Anne Yap, Jacinta Knight, Craig McKenzie, Jan Kranich, Ana Carolina Oliveira, Fernando J Rossello, Balasubramanian Krishnamurthy, Christian M Nefzger, Laurence Macia, Alison Thorburn, Alan G Baxter, Grant Morahan, Lee H Wong, Jose M Polo, Robert J Moore, Trevor J Lockett, Julie M Clarke, David L Topping, Leonard C Harrison, Charles R Mackay
Gut dysbiosis might underlie the pathogenesis of type 1 diabetes. In mice of the non-obese diabetic (NOD) strain, we found that key features of disease correlated inversely with blood and fecal concentrations of the microbial metabolites acetate and butyrate. We therefore fed NOD mice specialized diets designed to release large amounts of acetate or butyrate after bacterial fermentation in the colon. Each diet provided a high degree of protection from diabetes, even when administered after breakdown of immunotolerance...
March 27, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28345986/children-and-young-people-with-diabetes-recognition-and-management
#3
Hamish Hamilton, Grace Knudsen, Camelia Laura Vaina, Michelle Smith, Siba Prosad Paul
Diabetes mellitus (type 1) is an autoimmune condition leading to absolute insulin deficiency resulting in hyperglycaemia and its associated manifestations. It is the most common type of diabetes seen in children, characterised by the 4Ts (toilet, thinner, thirsty, tired). The signs and symptoms can sometimes be non-specific and a delay or missed diagnosis may be catastrophic to the health of the child. Children with an established diagnosis of diabetes often present to the health service with issues such as hypoglycaemia, hyperglycaemia, or diabetic ketoacidosis...
March 23, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28345313/acute-hyperglycemia-associated-with-anti-cancer-medication
#4
REVIEW
Yul Hwangbo, Eun Kyung Lee
Hyperglycemia during chemotherapy occurs in approximately 10% to 30% of patients. Glucocorticoids and L-asparaginase are well known to cause acute hyperglycemia during chemotherapy. Long-term hyperglycemia is also frequently observed, especially in patients with hematologic malignancies treated with L-asparaginase-based regimens and total body irradiation. Glucocorticoid-induced hyperglycemia often develops because of increased insulin resistance, diminished insulin secretion, and exaggerated hepatic glucose output...
March 2017: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28345003/expansion-of-human-tregs-from-cryopreserved-umbilical-cord-blood-for-gmp-compliant-autologous-adoptive-cell-transfer-therapy
#5
Howard R Seay, Amy L Putnam, Judit Cserny, Amanda L Posgai, Emma H Rosenau, John R Wingard, Kate F Girard, Morey Kraus, Angela P Lares, Heather L Brown, Katherine S Brown, Kristi T Balavage, Leeana D Peters, Ashley N Bushdorf, Mark A Atkinson, Jeffrey A Bluestone, Michael J Haller, Todd M Brusko
Umbilical cord blood is a traditional and convenient source of cells for hematopoietic stem cell transplantation. Thymic regulatory T cells (Tregs) are also present in cord blood, and there is growing interest in the use of autologous Tregs to provide a low-risk, fully human leukocyte antigen (HLA)-matched cell product for treating autoimmune diseases, such as type 1 diabetes. Here, we describe a good manufacturing practice (GMP)-compatible Treg expansion protocol using fluorescence-activated cell sorting, resulting in a mean 2,092-fold expansion of Tregs over a 16-day culture for a median yield of 1...
March 17, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28344312/a-case-of-anti-glomerular-basement-membrane-glomerulonephritis-complicated-by-type-1-diabetes-mellitus-mimicking-urinary-tract-infection
#6
Yoshihiro Aoki, Izumi Tanimoto, Yoshihiro Miyauchi, Yoshio Suzuki, Toshiaki Shiojiri
BACKGROUND Type 1 diabetes mellitus (DM) tends to complicate other autoimmune diseases. When considering renal dysfunction in patients with DM, diabetic nephropathy is a likely diagnosis. By contrast, anti-glomerular basement membrane (GBM) glomerulonephritis, an autoimmune disease, is one cause of rapidly progressive glomerulonephritis. CASE REPORT We report the case of a 44-year-old woman diagnosed with anti-glomerular basement membrane (GBM) glomerulonephritis. The diagnosis was made on the basis of serological test results and pathological findings of a renal biopsy...
March 27, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28343998/carnosic-acid-ca-attenuates-collagen-induced-arthritis-in-db-db-mice-via-inflammation-suppression-by-regulating-ros-dependent-p38-pathway
#7
Guangtao Xia, Xia Wang, Hongsheng Sun, Yuhong Qin, Min Fu
Rheumatoid arthritis (RA) is a multifactorial autoimmune disease, characterized by inflammation of synovial joints. Carnosic acid (CA) is a phenolic diterpene isolated from Rosmarinus officinails, playing a central role in cytoprotective responses to oxidative stress and inflammation response. Our study aimed to investigate the effects of CA on RA progression in diabetic animals. Carnosic acid (CA) was used to treat collagen-induced arthritis (CIA)-induced db/db mice. Blood glucose, oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were investigated to explore insulin resistance...
March 23, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28343398/an-anti-programmed-death-1-antibody-a%C3%AF-pd-1-fusion-protein-that-self-assembles-into-a-multivalent-and-functional-apd-1-nanoparticle
#8
Peng Zhao, Djordje Atanackovic, Shuyun Dong, Hideo Yagita, Xiao He, Mingnan Chen
Cancer immune checkpoint therapy has achieved remarkable clinical successes in various cancers. However, current immune checkpoint inhibitors block the checkpoint of not only the immune cells that are important to cancer therapy but also the immune cells that are irrelevant to the therapy. Such an indiscriminate blockade limits the efficacy and causes the autoimmune toxicity of the therapy. It might be beneficial to use a carrier to target immune checkpoint inhibitors to cancer-reactive immune cells. Here, we explore a method to load the inhibitors into carriers...
March 25, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28342757/role-of-enzymatic-free-radical-scavengers-in-management-of-oxidative-stress-and-autoimmune-disorders
#9
REVIEW
Shikha Srivastava, Deependra Singh, Satish Patel, Manju R Singh
Autoimmune disorders are distinct with over production and accumulation of free radicals due to its undisclosed genesis. The cause of numerous disorders as cancer, arthritis, psoriasis, diabetes, alzheimer's, cardiovascular disease, Parkinson's, respiratory distress syndrome, colitis, crohn's, pulmonary fibrosis, obesity and ageing have been associated with immune dysfunction and oxidative stress. In an oxidative stress, reactive oxygen species generally provoke the series of oxidation at cellular level. The buildup of free radicals in turn triggers various inflammatory cells causing release of various inflammatory interleukins, cytokines, chemokines, and tumor necrosis factors which mediate signal transduction and transcription pathways as nuclear factor- kappa B (NF-κB), signal transducer and activator of transcription 3 (STAT3), hypoxia-inducible factor-1 (HIF-1α) and nuclear factor-erythroid 2-related factor (Nrf2)...
March 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28342735/inhibition-of-effector-antigen-specific-t-cells-by-intradermal-administration-of-heme-oxygenase-1-inducers
#10
Thomas Simon, Julien Pogu, Séverine Rémy, Frédéric Brau, Sylvie Pogu, Maud Maquigneau, Jean-François Fonteneau, Nicolas Poirier, Bernard Vanhove, Gilles Blancho, Eliane Piaggio, Ignacio Anegon, Philippe Blancou
Developing protocols aimed at inhibiting effector T cells would be key for the treatment of T cell-dependent autoimmune diseases including type 1 autoimmune diabetes (T1D) and multiple sclerosis (MS). While heme oxygenase-1 (HO-1) inducers are clinically approved drugs for non-immune-related diseases, they do have immunosuppressive properties when administered systemically in rodents. Here we show that HO-1 inducers inhibit antigen-specific effector T cells when injected intradermally together with the T cell cognate antigens in mice...
March 22, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28342637/first-line-rituximab-combined-with-short-term-prednisone-versus-prednisone-alone-for-the-treatment-of-pemphigus-ritux-3-a-prospective-multicentre-parallel-group-open-label-randomised-trial
#11
Pascal Joly, Maud Maho-Vaillant, Catherine Prost-Squarcioni, Vivien Hebert, Estelle Houivet, Sébastien Calbo, Frédérique Caillot, Marie Laure Golinski, Bruno Labeille, Catherine Picard-Dahan, Carle Paul, Marie-Aleth Richard, Jean David Bouaziz, Sophie Duvert-Lehembre, Philippe Bernard, Frederic Caux, Marina Alexandre, Saskia Ingen-Housz-Oro, Pierre Vabres, Emmanuel Delaporte, Gaelle Quereux, Alain Dupuy, Sebastien Debarbieux, Martine Avenel-Audran, Michel D'Incan, Christophe Bedane, Nathalie Bénéton, Denis Jullien, Nicolas Dupin, Laurent Misery, Laurent Machet, Marie Beylot-Barry, Olivier Dereure, Bruno Sassolas, Thomas Vermeulin, Jacques Benichou, Philippe Musette
BACKGROUND: High doses of corticosteroids are considered the standard treatment for pemphigus. Because long-term corticosteroid treatment can cause severe and even life-threatening side-effects in patients with this disease, we assessed whether first-line use of rituximab as adjuvant therapy could improve the proportion of patients achieving complete remission off-therapy, compared with corticosteroid treatment alone, while decreasing treatment side-effects of corticosteroids. METHODS: We did a prospective, multicentre, parallel-group, open-label, randomised trial in 25 dermatology hospital departments in France (Ritux 3)...
March 22, 2017: Lancet
https://www.readbyqxmd.com/read/28339674/family-history-of-systemic-lupus-erythematosus-and-risk-of-autoimmune-disease-nationwide-cohort-study-in-denmark-1977-2013
#12
Constance Jensina Ulff-Møller, Jacob Simonsen, Kirsten Ohm Kyvik, Søren Jacobsen, Morten Frisch
Objective.: To provide population-based estimates of relative risk of SLE and other autoimmune diseases (ADs) in relatives of SLE patients. Methods.: A cohort of 5 237 319 Danish residents identified through the Civil Registration System was coupled to their relatives through the parental link and followed for SLE and other ADs between 1977 and 2013 through linkage to the National Patient Register. Twin zygosity was established through the Danish Twin Registry. Hazard ratios (HRs) with 95% CIs were calculated using Cox proportional hazards regression analyses...
February 20, 2017: Rheumatology
https://www.readbyqxmd.com/read/28337953/influence-of-chronic-exposure-to-simulated-shift-work-on-disease-and-longevity-in-disease-prone-inbred-mice
#13
Linda A Toth Rita A Trammell Teresa Liberati Steve Verhulst Marcia L Hart Jacob E Moskowitz And Craig Franklin
Shift work (SW) is viewed as a risk factor for the development of many serious health conditions, yet prospective studies thatdocument such risks are rare. The current study addressed this void by testing the hypothesis that long-term exposure to repeated diurnal phase shifts, mimicking SW, will accelerate disease onset or death in inbred mice with genetic risk of developing cancer,diabetes, or autoimmune disease. The data indicate that 1) life-long exposure to simulated SW accelerates death in female cancerprone AKR/J mice; 2) a significant proportion of male NON/ShiLtJ mice, which have impaired glucose tolerance but do not normally progress to type 2 diabetes, develop hyperglycemia, consistent with diabetes (that is, blood glucose 250 mg/dL or greater) after exposure to simulated SW for 8 wk; and 3) MRL/MpJ mice, which are prone to develop autoimmune disease, showed sex-related acceleration of disease development when exposed to SW as compared with mice maintained on a stable photocycle...
March 23, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28337685/type-iii-hypersensitivity-reaction-to-subcutaneous-insulin-preparations-in-a-type-1-diabetic
#14
Benjamin R Murray, Jolene R Jewell, Kyle J Jackson, Olabunmi Agboola, Brianna R Alexander, Poonam Sharma
Management of type 1 diabetes in patients who have insulin hypersensitivity is a clinical challenge and places patients at risk for recurrent diabetic ketoacidosis (DKA). Hypersensitivity reactions can be due to the patient's response to the insulin molecule itself or one of the injection's non-insulin components. It is therefore crucial for clinicians to quickly recognize the type of hypersensitivity reaction that is occurring and identify potentially immunogenic additives for the purpose of directing therapy as various insulin preparations have differing ingredients...
March 23, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28333965/worm-infestations-and-development-of-autoimmunity-in-children-the-abis-study
#15
Johnny Ludvigsson, Michael P Jones, Åshild Faresjö
Worm infestations influence the immune system and may therefore decrease the risk for autoimmune diseases. The aim of the study was to determine whether children who have developed autoimmune disease were less likely to have had worm infestations in childhood. The ABIS-study is a prospective population-based cohort study of children born in southeast Sweden 1997/99. 17.055 children participated. As of June 2014 116 individuals had developed Type 1 diabetes, 181 celiac disease, and 53 Juvenile Rheumatoid Arthritis...
2017: PloS One
https://www.readbyqxmd.com/read/28329633/comorbidities-of-hospitalized-pemphigus-patients-in-the-united-states
#16
Derek Y Hsu Y Hsu
We sought to determine the comorbid health conditions and inpatient mortality associated with pemphigus in a U.S. inpatient cohort. The 2002-2012 Nationwide Inpatient Sample, which contains a representative 20% stratified sample of all inpatient hospitalizations in the US, was analyzed. Comorbidities were determined through ICD-9-CM codes. Survey weighted multivariate logistic regression models controlling for demographic factors were constructed to determine the association of pemphigus with various comorbidities...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329555/dermatomyositis-clinically-presenting-with-cutaneous-ulcers-with-histopathologic-evidence-of-perforating-collagenosis
#17
Rachel Rosenstein, Kathryn Martires, Mitalee Christman, Vitaly Terushkin, Shane A Meehan, Nicole Seminara, Brian D Golden, Andrew G Franks
Dermatomyositis is a systemic, autoimmune diseasewith a variety of clinical features that often includemyositis and characteristic cutaneous findings. Asubset of patients with dermatomyositis developcutaneous ulcers, often in the setting of vasculitis orvasculopathy. We present a case of dermatomyositiswith cutaneous ulcers that show perforatingcollagenosis on histopathologic examination.Acquired reactive perforating collagenosistypically occurs in the setting of diabetes mellitus,chronic renal failure, and other pruritic conditions,and this case represents a rare association withdermatomyositis, which may ultimately be helpful inelucidating the pathophysiology of this perforatingdisorder...
December 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28326749/a-case-of-autoimmune-polyendocrine-syndrome-type-i-with-strong-positive-gad-antibody-titer-followed-up-with-glucose-tolerance-measured-by-oral-glucose-tolerance-test
#18
Rie Murakami, Toshihide Kawai, Shu Meguro, Matsuhiko Hayashi, Hiroshi Itoh
A 26-year-old Japanese woman presented with adrenal insufficiency, and treatment was started with cortisone and fludrocortisone in 1975. A few years later, she presented with hypoparathyroidism and was diagnosed with autoimmune polyendocrine syndrome type I (APS I), and treatment with calcium and alfacalcidol was started. She was found to have subacute thyroiditis and relative adrenal failure in 2006. Her condition remained stable under treatment with cortisone, fludrocortisone, levothyroxine, calcium lactate, precipitated calcium carbonate and alfacalcidol...
January 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28325871/progression-of-type-1-diabetes-from-the-prediabetic-stage-is-controlled-by-interferon-%C3%AE-signaling
#19
Brett S Marro, Brian C Ware, Jaroslav Zak, Juan Carlos de la Torre, Hugh Rosen, Michael B A Oldstone
Blockade of IFN-α but not IFN-β signaling using either an antibody or a selective S1PR1 agonist, CYM-5442, prevented type 1 diabetes (T1D) in the mouse Rip-LCMV T1D model. First, treatment with antibody or CYM-5442 limited the migration of autoimmune "antiself" T cells to the external boundaries around the islets and prevented their entry into the islets so they could not be positioned to engage, kill, and thus remove insulin-producing β cells. Second, CYM-5442 induced an exhaustion signature in antiself T cells by up-regulating the negative immune regulator receptor genes Pdcd1, Lag3, Ctla4, Tigit, and Btla, thereby limiting their killing ability...
March 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28324804/high-density-lipoprotein-immunomodulates-the-functional-activities-of-macrophage-and-cytokines-produced-during-ex-vivo-macrophage-cd4-t-cell-crosstalk-at-the-recent-onset-human-type-1-diabetes
#20
Ibtissem Benghalem, Warda Meziane, Zeyneb Hadjidj, Lamia Ysmail-Dahlouk, Ahmed Belamri, Kheira Mouhadjer, Mourad Aribi
BACKGROUND: Both CD4(+) T cells and macrophages are mainly involved in the autoimmune-mediated β-cells destruction in type 1 diabetes (T1D). The aim of this study was to examine the effect of HDL on functional activities of macrophage and its ability to regulate the production of cytokines in autologous mixed macrophage/CD4(+) T cells at the recent-onset human type 1 diabetes. METHODS: Cell samples were isolated from volunteers with recent-onset T1D or healthy controls...
March 16, 2017: Cytokine
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