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lymphocytes and diabetes type 2

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https://www.readbyqxmd.com/read/28275376/immunological-balance-is-associated-with-clinical-outcome-after-autologous-hematopoietic-stem-cell-transplantation-in-type-1-diabetes
#1
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
#2
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...
March 1, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28251163/role-of-t-lymphocytes-in-type-2-diabetes-and-diabetes-associated-inflammation
#3
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
#4
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
#5
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...
February 7, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28181734/molecular-mechanisms-of-insulin-resistance-in-2-cases-of-primary-insulin-receptor-defect-associated-diseases
#6
Atsumi Tsuji-Hosokawa, Kei Takasawa, Risa Nomura, Yuichi Miyakawa, Chikahiko Numakura, Atsushi Hijikata, Tsuyoshi Shirai, Yoshihiro Ogawa, Kenichi Kashimada, Tomohiro Morio
BACKGROUND: Defects of the insulin receptor gene ( INSR ) cause wide spectra of congenital insulin resistance. Monoallelic defects result in milder insulin-resistant diabetes mellitus with acanthosis nigricans (IRAN, type A). Whereas, leprechaunism (Donahue syndrome), the most severe condition with lethality during the infantile period is caused by biallelic defects of INSR . MATERIALS AND METHODS: We detected 2 missense mutations in 2 cases of leprechaunism and IRAN, type A, and reduced mRNA expression in the leprechaunism case...
February 9, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28178278/advances-in-the-quantification-of-mitochondrial-function-in-primary-human-immune-cells-through-extracellular-flux-analysis
#7
Dequina Nicholas, Elizabeth A Proctor, Forum M Raval, Blanche C Ip, Chloe Habib, Eleni Ritou, Tom N Grammatopoulos, Devin Steenkamp, Hans Dooms, Caroline M Apovian, Douglas A Lauffenburger, Barbara S Nikolajczyk
Numerous studies show that mitochondrial energy generation determines the effectiveness of immune responses. Furthermore, changes in mitochondrial function may regulate lymphocyte function in inflammatory diseases like type 2 diabetes. Analysis of lymphocyte mitochondrial function has been facilitated by introduction of 96-well format extracellular flux (XF96) analyzers, but the technology remains imperfect for analysis of human lymphocytes. Limitations in XF technology include the lack of practical protocols for analysis of archived human cells, and inadequate data analysis tools that require manual quality checks...
2017: PloS One
https://www.readbyqxmd.com/read/28150048/lymphocytes-and-macrophages-in-adipose-tissue-in-obesity-markers-or-makers-of-subclinical-inflammation
#8
REVIEW
Anna Cinkajzlová, Miloš Mráz, Martin Haluzík
Obesity is accompanied by the development of chronic low-grade inflammation in adipose tissue. The presence of chronic inflammatory response along with metabolically harmful factors released by adipose tissue into the circulation is associated with several metabolic complications of obesity such as type 2 diabetes mellitus or accelerated atherosclerosis. The present review is focused on macrophages and lymphocytes and their possible role in low-grade inflammation in fat. Both macrophages and lymphocytes respond to obesity-induced adipocyte hypertrophy by their migration into adipose tissue...
February 1, 2017: Protoplasma
https://www.readbyqxmd.com/read/28142150/camel-whey-protein-protects-b-and-t-cells-from-apoptosis-by-suppressing-activating-transcription-factor-3-atf-3-mediated-oxidative-stress-and-enhancing-phosphorylation-of-akt-and-i%C3%AE%C2%BAb-%C3%AE-in-type-i-diabetic-mice
#9
Gamal Badr, Leila H Sayed, Hossam El-Din M Omar, Ali M Abd El-Rahim, Emad A Ahmed, Mohamed H Mahmoud
BACKGROUND: Diabetes mellitus (DM) is associated with severe immune system complications. Camel whey protein (CWP) decreases free radicals (ROS) and modulates immune functions, but its effect on DM-impaired immune systems has not been studied. We investigated the impact of CWP on the immune system in a Type 1 diabetes mouse model. METHODS: Three experimental groups were used: (1) non-diabetic control; (2) diabetic; and (3) CWP-treated diabetic mice. RESULTS: Induction of diabetes by streptozotocin was associated with reduction of body weight and insulin level, increase in glucose level and pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α), and reduction in IL-2 and IL-4 levels...
January 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28130690/the-role-of-patient-s-systemic-characteristics-and-plateletcrit-in-developing-toxic-anterior-segment-syndrome-after-uneventful-phaco-surgery-a-case-control-study
#10
Serpil Yazgan, Ugur Celik, Orhan Ayar, Suat Hayri Ugurbas, Burcu Celik, Mehmet Orçun Akdemir, Silay Canturk Ugurbas, Atilla Alpay
PURPOSE: To compare the systemic and ocular characteristics and laboratory findings of patients developing toxic anterior segment syndrome (TASS) after uneventful phaco surgery with unaffected subjects undergoing the same surgery in the same session. DESIGN: A retrospective case-control study. METHODS: The study group consisted of 26 eyes of 26 patients who underwent uneventful phaco surgery and who went on to develop TASS, while the control group included 39 subjects who had routine phaco surgery in the same session by the same surgeon...
January 27, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28102614/expression-of-cd4-cd28-null-t-lymphocytes-in-children-and-adolescents-with-type-1-diabetes-mellitus-relation-to-microvascular-complications-aortic-elastic-properties-and-carotid-intima-media-thickness
#11
Mona H El-Samahy, Azza A G Tantawy, Amira A M Adly, Nevin M Habeeb, Eman A R Ismail, Gehan M Hamed, Rasha Eladawy
BACKGROUND: Cardiovascular risk in type 1 diabetes mellitus (T1DM) is associated with endothelial dysfunction, inflammation, and altered immunity. CD4(+) CD28(null) T-cells are a subset of long-lived cytotoxic CD4(+) T-lymphocytes with proatherogenic and plaque-destabilizing properties. We hypothesized that the frequency of CD4(+) CD28(null) T-cells may be altered in T1DM and related to vascular complications. AIM: To assess the percentage of CD4(+) CD28(null) T-lymphocytes in children and adolescents with T1DM and their relation to vascular structure and glycemic control...
January 19, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28065853/sitagliptin-inhibit-human-lymphocytes-proliferation-and-th1-th17-differentiation-in-vitro
#12
Marcelo Maia Pinheiro, Caroline Lais Stoppa, Claudete Justina Valduga, Cristina Eunice Okuyama, Renata Gorjão, Regina Mara Silva Pereira, Susana Nogueira Diniz
Dipeptidyl peptidase-4 (DPP-4) inhibitors are a new class of anti-diabetic agents that are widely used in clinical practice to improve glycemic control in patients with type 2 diabetes. DPP-4 is also known as lymphocyte cell surface protein, CD26, and plays an important role in T-cell immunity. Recent studies suggest that DPP-4 inhibitors improve beta-cell function and attenuate autoimmunity in type 1 diabetic mouse models. To investigate the direct effect of DPP4 in immune response, human peripheral blood mononuclear cells (PBMC) from healthy volunteers were obtained by Ficoll gradient and cultivated in the absence (control) or presence of phytohemagglutinin (PHA), or stimulated with PHA and treated with sitagliptin...
March 30, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28060767/cytotoxic-t-lymphocyte-associated-protein-4-49a-g-polymorphisms-contribute-to-the-risk-of-type-1-diabetes-in-children-an-updated-systematic-review-and-meta-analysis-with-trial-sequential-analysis
#13
Bo Wang, Wei Du, Yutao Jia, Xiaobai Zhang, Guorui Ma
Type 1 diabetes (T1D) is a heritable disease associated with multiple genetic variants. This systematic review and meta-analysis assessed the correlation between cytotoxic T-lymphocyte-associated protein 4(CTLA-4) +49A/G polymorphisms and the risk of T1D in children. The random effects model was used to estimate the related odds ratios (ORs) and 95% confidence intervals (CIs). Trial sequential analysis (TSA) was used to determine whether the currently available evidence was sufficient and conclusive. Our results indicated that CTLA-4 gene polymorphisms significantly increased the risk of childhood T1D in an allelic model (G vs...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28017281/neutrophil-lymphocyte-ratio-and-platelet-lymphocyte-ratio-as-useful-predictive-markers-of-prediabetes-and-diabetes-mellitus
#14
Cuma Mertoglu, Murat Gunay
AIMS: Chronic inflammation plays a central role in the development and progression of diabetes, and in the pathogenesis of its complications. The neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) are indicators of subclinical inflammation. Mean platelet volume (MPV) is one of the platelet function indices. We investigated the association of NLR, PLR and MPV with prediabetes and type 2 diabetes mellitus and determine whether or not these are reliable markers for diagnosis...
December 12, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/27939445/changes-in-adipose-tissue-cellular-composition-during-obesity-and-aging-as-a-cause-of-metabolic-dysregulation
#15
Kari Martyniak, Michal M Masternak
Adipose tissue represents complex endocrine organ containing several different cellular populations including adipocytes, pre-adipocytes, mesenchymal stem cells, macrophages and lymphocytes. It is well establishing that these populations are not static but alter during obesity and aging. Changes in cellular populations alter inflammatory status and other common metabolic complications arise, therefore adipose tissue cellular composition helps dictate its endocrine and regulatory function. During excessive weight gain in obese individuals and as we age there is shift towards increase populations of inflammatory macrophages with a decrease of regulatory T cell...
December 9, 2016: Experimental Gerontology
https://www.readbyqxmd.com/read/27917204/modulation-of-immune-cells-and-th1-th2-cytokines-in-insulin-treated-type-2-diabetes-mellitus
#16
Magloire Pandoua Nekoua, Rufine Fachinan, Amidou K Atchamou, Odilon Nouatin, Daniel Amoussou-Guenou, Marcellin K Amoussou-Guenou, Kabirou Moutairou, Akadiri Yessoufou
BACKGROUND: The role of the immune system in insulin resistance associated with type 2 diabetes has been suggested. OBJECTIVES: We assessed the profile of Th1/Th2 cytokines along with the frequencies of immune cells in insulin-treated type 2 diabetic patients (T2DP). METHODS: 45 T2D patients and 43 age-matched healthy subjects were selected. Serum concentrations of T-helper type 1 (Th1) and Th2 cytokines and the frequencies of innate and adaptive immunity cells were assessed...
September 2016: African Health Sciences
https://www.readbyqxmd.com/read/27915019/the-impact-of-cell-surface-pegylation-and-short-course-immunotherapy-on-islet-graft-survival-in-an-allogeneic-murine-model
#17
Jaime A Giraldo, R Damaris Molano, Hernán R Rengifo, Carmen Fotino, Kerim M Gattás-Asfura, Antonello Pileggi, Cherie L Stabler
Islet transplantation is a promising therapy for Type 1 diabetes mellitus; however, host inflammatory and immune responses lead to islet dysfunction and destruction, despite potent systemic immunosuppression. Grafting of poly(ethylene glycol) (PEG) to the periphery of cells or tissues can mitigate inflammation and immune recognition via generation of a steric barrier. Herein, we sought to evaluate the complementary impact of islet PEGylation with a short-course immunotherapy on the survival of fully-MHC mismatched islet allografts (DBA/2 islets into diabetic C57BL/6J recipients)...
February 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/27908890/pathology-of-human-coronary-and-carotid-artery-atherosclerosis-and-vascular-calcification-in-diabetes-mellitus
#18
Kazuyuki Yahagi, Frank D Kolodgie, Christoph Lutter, Hiroyoshi Mori, Maria E Romero, Aloke V Finn, Renu Virmani
The continuing increase in the prevalence of diabetes mellitus in the general population is predicted to result in a higher incidence of cardiovascular disease. Although the mechanisms of diabetes mellitus-associated progression of atherosclerosis are not fully understood, at clinical and pathological levels, there is an appreciation of increased disease burden and higher levels of arterial calcification in these subjects. Plaques within the coronary arteries of patients with diabetes mellitus generally exhibit larger necrotic cores and significantly greater inflammation consisting mainly of macrophages and T lymphocytes relative to patients without diabetes mellitus...
February 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27908556/the-relationship-between-neutrophil-to-lymphocyte-ratio-and-intracerebral-hemorrhage-in-type-2-diabetes-mellitus
#19
Peng Luo, Rui Li, Siyuan Yu, Tingting Xu, Shufan Yue, Yongli Ji, Xin Chen, Haiting Xie
INTRODUCTION: Chronic systematic inflammation has been suggested to be associated with the occurrence and development of cardiovascular events. Low-grade systematic inflammation persists in type 2 diabetes mellitus (T2DM) patients. In addition, the risk of cerebral hemorrhage in these patients is increased compared with non-diabetic patients. Neutrophil-to-lymphocyte ratio (NLR) is the ratio derived by dividing the neutrophil count with the lymphocyte count from a peripheral blood sample...
November 28, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27903296/factors-affecting-long-term-efficacy-of-t-regulatory-cell-based-therapy-in-type-1-diabetes
#20
Natalia Marek-Trzonkowska, Małgorzata Myśliwiec, Dorota Iwaszkiewicz-Grześ, Mateusz Gliwiński, Ilona Derkowska, Magdalena Żalińska, Maciej Zieliński, Marcelina Grabowska, Hanna Zielińska, Karolina Piekarska, Anna Jaźwińska-Curyłło, Radosław Owczuk, Agnieszka Szadkowska, Krystyna Wyka, Piotr Witkowski, Wojciech Młynarski, Przemysława Jarosz-Chobot, Artur Bossowski, Janusz Siebert, Piotr Trzonkowski
BACKGROUND: Recent studies suggest that immunotherapy using T regulatory cells (Tregs) prolongs remission in type 1 diabetes (T1DM). Here, we report factors that possibly affect the efficacy of this treatment. METHODS: The metabolic and immune background of 12 children with recently diagnosed T1DM, as well as that of untreated subjects, during a 2-year follow-up is presented. Patients were treated with up to 30 × 10(6)/kg b.w. of autologous expanded CD3(+)CD4(+)CD25(high)CD127(-) Tregs...
December 1, 2016: Journal of Translational Medicine
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