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lymphocytes and diabetes type 2

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https://www.readbyqxmd.com/read/28582723/neutrophil-to-lymphocyte-ratio-is-associated-with-diabetic-peripheral-neuropathy-in-type-2-diabetes-patients
#1
Siying Liu, Hangping Zheng, Xiaoming Zhu, Fei Mao, Shuo Zhang, Hongli Shi, Yiming Li, Bin Lu
OBJECTIVE: Diabetic peripheral neuropathy (DPN) had been demonstrated as a chronic inflammation state and one of the most common complications of type 2 diabetes mellitus (T2DM). Neutrophil-to-lymphocyte ratio (NLR) is a novel marker to reflect many kinds of chronic inflammation disease including diabetes. We aim to evaluate the association between NLR and DPN and to determine whether NLR could be a new indicator of DPN in type 2 diabetes patients. METHODS: We retrospect the consecutive medical files of T2DM patients...
May 12, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28553592/study-of-neutrophil-lymphocyte-ratio-as-novel-marker-for-diabetic-nephropathy-in-type-2-diabetes
#2
Sagar Ashokrao Khandare, Sachin Chittawar, Nitin Nahar, T N Dubey, Zahraan Qureshi
INTRODUCTION: Diabetic nephropathy (DN) is a microvascular complication of diabetes. DN is clinically manifested as an increase in urine albumin excretion. Total white blood cell count is a crude but sensitive indicator of inflammation and studied in many cardiac and noncardiac diseases as an inflammatory marker such as acute myocardial infarction, stroke, and heart failure. In this study, the association of neutrophil-lymphocyte ratio (NLR) with DN is studied. PATIENTS AND METHODS: It is an observational cross-sectional study...
May 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28496193/exendin-4-exhibits-enhanced-anti-tumor-effects-in-diabetic-mice
#3
Lan He, Priscilla T Y Law, Chun Kwok Wong, Juliana C N Chan, Paul K S Chan
Type 2 diabetes (T2D) is associated with increased risk of cancers. In this connection, we previously demonstrated the promoting effect of diabetes on HPV-associated carcinogenesis using a xenograft model in db/db diabetic mice. The underlying mechanism of this observation might be partly contributed by dysregulated immune response in diabetes. In this study, we hypothesized that the impaired anti-tumor immune response in diabetic status could be modulated by exendin-4, a glucagon-like protein receptor agonist which exhibits anti-diabetic effects...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28491871/the-imbalance-of-b-lymphocyte-subsets-in-subjects-with-different-glucose-tolerance-relationship-with-metabolic-parameter-and-disease-status
#4
Chao Deng, Yufei Xiang, Tingting Tan, Zhihui Ren, Chuqing Cao, Bingwen Liu, Gan Huang, Xiangbing Wang, Zhiguang Zhou
B lymphocytes are involved in inflammation and are related to insulin resistance in obesity and type 2 diabetes (T2D). This study investigated the phenotype and frequency of B-lymphocyte subsets in subjects recently diagnosed with T2D (n = 60), impaired glucose regulation (IGR, n = 73), and normal glucose tolerance (NGT, n = 169) by flow cytometry. T2D subjects had an increased percentage of CD19(+)CD23(+) (B-2) cells and a decreased percentage of CD19(+)CD23(-) (B-1) cells attributing to CD19(+)CD23(-)CD5(-) (B-1b) cells, but not CD19(+)CD23(-)CD5(+) (B-1a) cells, compared to NGT and IGR subjects...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28491063/isa-2011b-a-phosphatidylinositol-4-phosphate-5-kinase-%C3%AE-inhibitor-impairs-cd28-dependent-costimulatory-and-pro-inflammatory-signals-in-human-t-lymphocytes
#5
Martina Kunkl, Nicla Porciello, Marta Mastrogiovanni, Cristina Capuano, Federica Lucantoni, Chiara Moretti, Jenny L Persson, Ricciarda Galandrini, Raffaella Buzzetti, Loretta Tuosto
Phosphatidylinositol 4,5-biphosphate (PIP2) is a membrane phospholipid that controls the activity of several proteins regulating cytoskeleton reorganization, cytokine gene expression, T cell survival, proliferation, and differentiation. Phosphatidylinositol 4-phosphate 5-kinases (PIP5Ks) are the main enzymes involved in PIP2 biosynthesis by phosphorylating phosphatidylinositol 4-monophosphate (PI4P) at the D5 position of the inositol ring. In human T lymphocytes, we recently found that CD28 costimulatory molecule is pivotal for PIP2 turnover by recruiting and activating PIP5Kα...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28461573/genetic-and-small-molecule-disruption-of-the-aid-rad51-axis-similarly-protects-nonobese-diabetic-mice-from-type-1-diabetes-through-expansion-of-regulatory-b-lymphocytes
#6
Jeremy J Ratiu, Jeremy J Racine, Muneer G Hasham, Qiming Wang, Jane A Branca, Harold D Chapman, Jing Zhu, Nina Donghia, Vivek Philip, William H Schott, Clive Wasserfall, Mark A Atkinson, Kevin D Mills, Caroline M Leeth, David V Serreze
B lymphocytes play a key role in type 1 diabetes (T1D) development by serving as a subset of APCs preferentially supporting the expansion of autoreactive pathogenic T cells. As a result of their pathogenic importance, B lymphocyte-targeted therapies have received considerable interest as potential T1D interventions. Unfortunately, the B lymphocyte-directed T1D interventions tested to date failed to halt β cell demise. IgG autoantibodies marking humans at future risk for T1D indicate that B lymphocytes producing them have undergone the affinity-maturation processes of class switch recombination and, possibly, somatic hypermutation...
June 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28450222/probiotic-treatment-protects-against-the-pro-depressant-like-effect-of-high-fat-diet-in-flinders-sensitive-line-rats
#7
Anders Abildgaard, Betina Elfving, Marianne Hokland, Sten Lund, Gregers Wegener
Major depressive disorder (MDD) is highly associated with dysmetabolic conditions, such as obesity and diabetes mellitus type 2, and the gut microbiota may interact with both disease entities. We have previously shown that a high-fat diet (HFD) exacerbated depressive-like behaviour uniquely in Flinders Sensitive Line (FSL) rats that inherently present with an increased level of depressive-like behaviour compared with Flinders Resistant Line (FRL) rats. We therefore investigated whether multispecies probiotics possessed anti-depressant-like effect in FSL rats or protected against the pro-depressant-like effect of HFD...
April 24, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28445787/adipose-derived-stem-cells-were-impaired-in-restricting-cd4-t-cell-proliferation-and-polarization-in-type-2-diabetic-apoe-mouse
#8
Ming-Hao Liu, Ya Li, Lu Han, Yao-Yuan Zhang, Di Wang, Zhi-Hao Wang, Hui-Min Zhou, Ming Song, Yi-Hui Li, Meng-Xiong Tang, Wei Zhang, Ming Zhong
BACKGROUND: Atherosclerosis (AS) is the most common and serious complication of type 2 diabetes mellitus (T2DM) and is accelerated via chronic systemic inflammation rather than hyperglycemia. Adipose tissue is the major source of systemic inflammation in abnormal metabolic state. Pro-inflammatory CD4(+)T cells play pivotal role in promoting adipose inflammation. Adipose-derived stem cells (ADSCs) for fat regeneration have potent ability of immunosuppression and restricting CD4(+)T cells as well...
April 23, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28437437/use-of-short-interfering-rna-delivered-by-cationic-liposomes-to-enable-efficient-down-regulation-of-ptpn22-gene-in-human-t-lymphocytes
#9
Valentina Perri, Marsha Pellegrino, Francesca Ceccacci, Anita Scipioni, Stefania Petrini, Elena Gianchecchi, Anna Lo Russo, Serena De Santis, Giovanna Mancini, Alessandra Fierabracci
Type 1 diabetes and thyroid disease are T cell-dependent autoimmune endocrinopathies. The standard substitutive administration of the deficient hormones does not halt the autoimmune process; therefore, development of immunotherapies aiming to preserve the residual hormonal cells, is of crucial importance. PTPN22 C1858T mutation encoding for the R620W lymphoid tyrosine phosphatase variant, plays a potential pathophysiological role in autoimmunity. The PTPN22 encoded protein Lyp is a negative regulator of T cell antigen receptor signaling; R620W variant, leading to a gain of function with paradoxical reduced T cell activation, may represent a valid therapeutic target...
2017: PloS One
https://www.readbyqxmd.com/read/28422000/fibromyalgia-in-300-adult-index-patients-with-primary-immunodeficiency
#10
James C Barton, Luigi F Bertoli, Jackson C Barton, Ronald T Acton
OBJECTIVES: We sought to determine the prevalence and clinical and laboratory associations of fibromyalgia in adults with primary immunodeficiency (immunoglobulin (Ig) G subclass deficiency (IgGSD) and common variable immunodeficiency (CVID). METHODS: We performed a retrospective analysis of these observations in 300 non-Hispanic white adult index patients with recurrent/severe respiratory tract infections and IgGSD or CVID: age; sex; IgGSD; fibromyalgia; chronic fatigue; autoimmune conditions (ACs); interstitial cystitis (IC); diabetes; body mass index; serum Ig isotypes; blood lymphocytes and subsets; and human leukocyte antigen (HLA)-A and -B types and haplotypes...
April 19, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28420440/immune-response-after-autologous-hematopoietic-stem-cell-transplantation-in-type-1-diabetes-mellitus
#11
Lei Ye, Li Li, Bing Wan, Minglan Yang, Jie Hong, Weiqiong Gu, Weiqing Wang, Guang Ning
BACKGROUND: This study explored the details of the immune response after autologous hematopoietic stem cell transplantation (AHSCT) treatment in type 1 diabetes mellitus. METHODS: Peripheral blood mononuclear cells (PBMCs) from 18 patients with type 1 diabetes mellitus were taken at baseline and 12 months after AHSCT or insulin-only therapy. The lymphocyte proliferation, mRNA expression and secretion of pro-inflammatory and anti-inflammatory cytokines belonging to T-helper type 1 (Th1), T-helper type 17 (Th17) and regulatory T (Treg) cells in PBMC culture supernatants were assessed...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28392139/metformin-improves-in-vivo-and-in-vitro-b-cell-function-in-individuals-with-obesity-and-type-2-diabetes
#12
Alain Diaz, Maria Romero, Thomas Vazquez, Suzanne Lechner, Bonnie B Blomberg, Daniela Frasca
Metformin (MET), the first-line medication for Type-2 Diabetes (T2D), has been shown to reduce chronic inflammation indirectly through reduction of hyperglycemia, or directly acting as anti-inflammatory drug. The effects of MET on B lymphocytes is uncharacterized. In the present study, we measured in vivo and in vitro influenza vaccine responses in 2 groups of T2D patients: recently diagnosed but not taking anti-diabetic drugs, and patients taking MET. Results show that B cell function and vaccine responses, hampered by obesity and T2D, are recovered by MET...
May 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28384040/ctla-4-49-g-a-polymorphism-confers-autoimmune-disease-risk-an-updated-meta-analysis
#13
Ke Wang, Qin Zhu, Yunjie Lu, Hao Lu, Feng Zhang, Xuehao Wang, Ye Fan
BACKGROUND: Cytotoxic T lymphocyte antigen-4 (CTLA-4) plays a pivotal role in immune homeostasis. Dysregulated expression of CTLA-4 leads to many autoimmune diseases, including rheumatoid arthritis, systemic lupus erythematosus, and type 1 diabetes (T1D). There has been a controversial association between the CTLA-4 +49 G/A SNP (rs231775) and autoimmune diseases. Therefore, this meta-analysis was performed to assess the link between rs231775 and autoimmune disease risk. MATERIALS AND METHODS: We retrieved the available studies from PUBMED and EMBASE through February, 2016 and then performed meta-analyses that included all populations, as well as by ethnicity...
April 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28349482/introduction-to-lymphocyte-trafficking-in-disease
#14
Patricia F Lalor, Elizabeth A Hepburn
Lymphocytes are the key effector cells of the adaptive immune response but are also implicated in the development of chronic inflammatory diseases such as type 2 diabetes, cardiovascular disease, inflammatory bowel disease, and allergy. In order to understand the mechanisms responsible for the global increase in such debilitating conditions it is vital to appreciate the complexity of immune cell trafficking into tissue under normal and inflamed conditions. In this chapter we introduce the mechanisms of immune cell recruitment into tissue and highlight how these processes have been targeted by new therapeutic entities based on blocking integrin or chemokine function...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28348775/progressive-multifocal-leukoencephalopathy-and-black-fungus-in-a-patient-with-rheumatoid-arthritis-without-severe-lymphocytopenia
#15
Marieke J A de Regt, Jean-Luc Murk, Tilman Schneider-Hohendorf, Mike P Wattjes, Andy I M Hoepelman, Joop E Arends
INTRODUCTION: Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating brain infection caused by JC polyomavirus (JCV), primarily seen in patients with severely compromised cellular immunity. Clinical presentation varies depending on the affected white matter. PML prognosis is variable and effective treatments are lacking. CASE PRESENTATION: A 75-year-old Chinese woman with type 2 diabetes mellitus, chronic kidney disease and rheumatoid arthritis, treated with low-dose methotrexate and prednisolone for 2...
August 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28275376/immunological-balance-is-associated-with-clinical-outcome-after-autologous-hematopoietic-stem-cell-transplantation-in-type-1-diabetes
#16
Kelen C R Malmegrim, Júlia T C de Azevedo, Lucas C M Arruda, Joana R F Abreu, Carlos E B Couri, Gislane L V de Oliveira, Patricia V B Palma, Gabriela T Scortegagna, Ana B P L Stracieri, Daniela A Moraes, Juliana B E Dias, Fabiano Pieroni, Renato Cunha, Luiza Guilherme, Nathália M Santos, Milton C Foss, Dimas T Covas, Richard K Burt, Belinda P Simões, Júlio C Voltarelli, Bart O Roep, Maria C Oliveira
Autologous hematopoietic stem cell transplantation (AHSCT) increases C-peptide levels and induces insulin independence in patients with type 1 diabetes. This study aimed to investigate how clinical outcomes may associate with the immunological status, especially concerning the balance between immunoregulation and autoreactivity. Twenty-one type 1 diabetes patients were monitored after AHSCT and assessed every 6 months for duration of insulin independence, C-peptide levels, frequencies of islet-specific autoreactive CD8(+) T cells (CTL), regulatory lymphocyte subsets, thymic function, and T-cell repertoire diversity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28259571/preoperative-inflammatory-status-as-a-predictor-of-primary-patency-after-femoropopliteal-stent-implantation
#17
Kenneth R Nakazawa, Sean P Wengerter, John R Power, Robert A Lookstein, Rami O Tadros, Windsor Ting, Peter L Faries, Ageliki G Vouyouka
OBJECTIVE: The purpose of this study was to evaluate the impact of preoperative inflammatory status, as determined by complete blood count test parameters, on 12- and 24-month patency of femoropopliteal stenting for peripheral arterial disease. METHODS: We retrospectively analyzed baseline clinical and angiographic data among 138 patients (median age, 73 years; 46% female) from 2005 to 2014 at our institution with preoperative complete blood count test values and information of patency for at least 12 months after first-time femoropopliteal stenting...
July 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28251163/role-of-t-lymphocytes-in-type-2-diabetes-and-diabetes-associated-inflammation
#18
REVIEW
Chang Xia, Xiaoquan Rao, Jixin Zhong
Although a critical role of adaptive immune system has been confirmed in driving local and systemic inflammation in type 2 diabetes and promoting insulin resistance, the underlying mechanism is not completely understood. Inflammatory regulation has been focused on innate immunity especially macrophage for a long time, while increasing evidence suggests T cells are crucial for the development of metabolic inflammation and insulin resistance since 2009. There was growing evidence supporting the critical implication of T cells in the pathogenesis of type 2 diabetes...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28243038/the-role-of-flow-cytometry-in-celiac-disease-screening-using-human-leukocyte-antigen-in-adult-patients-with-type-1-diabetes-mellitus
#19
Miren Vicuña Arregui, Jose Manuel Zozaya Urmeneta, Helena León Brito, Juan Pablo Martínez De Esteban, Carlos Prieto Martínez, Lluis Forga Llenas, Erkuden Aranburu Urtasun, Francisco Sala Pericas, Ramón Angós Musgo, Maria Rosario Mercado Gutierrez, Mercedes Palacios Sarrasqueta
BACKGROUND: Patients with type 1 diabetes mellitus (DM1) have an increased risk of celiac disease (CD). Since CD can be seronegative, more sensible tests for detection are needed. In seronegative patients, CD diagnosis may be difficult because of a lack of specificity. Flow cytometry analysis of lymphocyte populations can be useful in this situation. We aimed to study the prevalence of CD in adult DM1 using human leukocyte antigen (HLA) compatibility-based screening. A secondary goal was to study the role of flow cytometry as a complementary tool in these patients...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28187313/il-20-contributes-to-low-grade-inflammation-and-weight-gain-in-the-psammomys-obesus
#20
Helena Cucak, Lise Høj Thomsen, Alexander Rosendahl
The metabolic syndrome has been demonstrated in gene deficient animals, e.g. db/db mice, to include a systemic inflammation leading to insulin resistance, obesity and type 2 diabetes (T2D). To determine the importance of inflammation in obesity and diabetes, in a normal non-genetically modified species, an intervention study with neutralizing anti-IL-20 antibodies was conducted in the spontaneous T2D model Psammomys obesus. All IL-20 receptor chains were expressed on protein level in the Psammomys obesus. Neutralization of IL-20 did not modulate blood glucose, HbA1c, insulin levels or lymphocyte numbers after five weeks treatment although a trend to reduced weight gain rate was observed upon anti-IL-20 treatment...
April 2017: International Immunopharmacology
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