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lymphocytes and diabetes type 2

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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
#1
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
#2
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...
January 5, 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
#3
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...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28017281/neutrophil-lymphocyte-ratio-and-platelet-lymphocyte-ratio-as-useful-predictive-markers-of-prediabetes-and-diabetes-mellitus
#4
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
#5
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
#6
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
#7
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
#8
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...
December 1, 2016: 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
#9
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
#10
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
https://www.readbyqxmd.com/read/27864801/high-prevalence-of-human-herpesvirus-8-infection-in-diabetes-type-2-patients-and-detection-of-a-new-virus-subtype
#11
Enrica Piras, Maria A Madeddu, Giuseppina Palmieri, Fabrizio Angius, Pierpaolo Contini, Raffaello Pompei, Angela Ingianni
The prevalence of Human Herpesvirus 8 (HHV8) DNA and antiviral antibodies in Diabetes type 2 (DM2) and control subjects was studied, in order to confirm a possible link between DM2 and HHV8 infection. The HHV8-DNA from diabetic patients was typed for detecting possible genomic differences with known HHV8 reference viruses.DM2 patients and healthy controls were examined for the presence of HHV8 DNA into the peripheral blood lymphocytes. Both anti-lytic and latent phase antibodies were detected in HHV8 positive and negative diabetic patients, as well in a number of controls...
November 19, 2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27863973/white-blood-cell-subtypes-and-risk-of-type-2-diabetes
#12
Hongmei Zhang, Zhen Yang, Weiwei Zhang, Yixin Niu, Xiaoyong Li, Li Qin, Qing Su
OBJECTIVE: It is reported that total white blood cell is associated with risk of diabetes mellitus. The present study is to investigate the relationship of white blood cell subsets with incidence of type 2 diabetes at baseline and 3year follow-up. METHODS: We chose individuals without diabetes history as our study population; 8991 individuals were included at baseline. All of the participants underwent a 75-g OGTT at baseline. White blood cell count including all the subsets were measured along with all the other laboratory indices...
January 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/27855231/association-of-newly-diagnosed-type-1-diabetes-and-autoimmune-pancreatitis
#13
Laila Ennazk, Ghizlane El Mghari, Nawal El Ansari
: Autoimmune pancreatitis is a new nosological entity in which a lymphocytic infiltration of the exocrine pancreas is involved. The concomitant onset of autoimmune pancreatitis and type 1 diabetes has been recently described suggesting a unique immune disturbance that compromises the pancreatic endocrine and exocrine functions. We report a case of type1 diabetes onset associated with an autoimmune pancreatitis in a young patient who seemed to present a type 2 autoimmune polyglandular syndrome...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27821024/predictive-value-of-neutrophiltolymphocyte-ratio-in-the-severity-of-non-alcoholic-fatty-liver-disease-among-type-2-diabetes-patients
#14
N K Kahraman, C Kahraman, F E Koçak, S Coşgun, B Şanal, M Korkmaz, Z Bayhan, S Zeren
BACKGROUND: Non-alcoholic fatty liver disease is a progressive inflammatory disease that ultimately results in cirrhosis and liver failure. It is assosiciated with two step hit scenario; the first step is fat accumulationin liver and in the second step inflammation and fibrosis are the major compenents. The incidence of this disease is increasing worldwide, following rising incidences of obesity and diabetes mellitus. AIM: The aim of this study is to analyze the relationship between non-alcoholic fatty liver disease andseverity and neutrophil-to-lymphocyte ratio among the patients having type 2 diabetes mellitus...
July 2016: Acta Gastro-enterologica Belgica
https://www.readbyqxmd.com/read/27789617/cytomegalovirus-seropositivity-predicts-a-decline-in-the-t-cell-but-not-the-antibody-response-to-influenza-in-vaccinated-older-adults-independent-of-type-2-diabetes-status
#15
Kamran Haq, Tamas Fulop, Gale Tedder, Beth Gentleman, Hugo Garneau, Graydon S Meneilly, Alison Kleppinger, Graham Pawelec, Janet E McElhaney
Type 2 diabetes mellitus (T2DM) and persistent cytomegalovirus (CMV) infection are postulated contributors to inflammatory processes that impact on the age-related decline in T-cell responses to influenza vaccination. Older subjects with T2DM (n = 30) and healthy aged controls (n = 40) were enrolled and received influenza vaccination in this study. Serum inflammatory markers and CMV serostatus were measured. Pre- to post-vaccination changes in serum antibody titers to the A/H3N2 strain, and levels of granzyme B (GrB, cytotoxic T lymphocytes) in lysates and cytokines in supernatants from influenza A/H3N2-challenged peripheral blood mononuclear cells were measured...
October 27, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/27783671/nk-cd11c-cell-crosstalk-in-diabetes-enhances-il-6-mediated-inflammation-during-mycobacterium-tuberculosis-infection
#16
Satyanarayana Swamy Cheekatla, Deepak Tripathi, Sambasivan Venkatasubramanian, Pavan Kumar Nathella, Padmaja Paidipally, Munenori Ishibashi, Elwyn Welch, Amy R Tvinnereim, Mitsuo Ikebe, Vijaya Lakshmi Valluri, Subash Babu, Hardy Kornfeld, Ramakrishna Vankayalapati
In this study, we developed a mouse model of type 2 diabetes mellitus (T2DM) using streptozotocin and nicotinamide and identified factors that increase susceptibility of T2DM mice to infection by Mycobacterium tuberculosis (Mtb). All Mtb-infected T2DM mice and 40% of uninfected T2DM mice died within 10 months, whereas all control mice survived. In Mtb-infected mice, T2DM increased the bacterial burden and pro- and anti-inflammatory cytokine and chemokine production in the lungs relative to those in uninfected T2DM mice and infected control mice...
October 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27764529/t-lymphocyte-and-glycemic-status-after-vitamin-d-treatment-in-type-1-diabetes-a-randomized-controlled-trial-with-sequential-crossover
#17
D Bogdanou, M Penna-Martinez, N Filmann, T L Chung, Y Moran-Auth, J Wehrle, C Cappel, S Huenecke, E Herrmann, U Koehl, K Badenhoop
BACKGROUND: Type 1 diabetes mellitus (T1D) is mediated by autoaggressive T effector cells with an underlying regulatory T-cell (Treg) defect. Vitamin D deficiency is highly prevalent in T1D, which can aggravate immune dysfunction. High-dose vitamin D treatment may enhance Tregs and improve metabolism in T1D patients. METHODS: In a randomized double-blind placebo-controlled trial with crossover design, patients received either for 3 months cholecalciferol 4000 IU/d followed by 3 months placebo or the sequential alternative...
October 20, 2016: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/27742767/a-score-of-low-grade-inflammation-and-risk-of-mortality-prospective-findings-from-the-moli-sani-study
#18
Marialaura Bonaccio, Augusto Di Castelnuovo, George Pounis, Amalia De Curtis, Simona Costanzo, Mariarosaria Persichillo, Chiara Cerletti, Maria Benedetta Donati, Giovanni de Gaetano, Licia Iacoviello
Low-grade inflammation is associated with increased risk of chronic degenerative disease but its relationship with mortality is less explored. We aimed at evaluating, at a large epidemiological level, the possible association of low-grade inflammation, as measured by a composite score, with overall mortality risk. We conducted a population-based prospective investigation on 20,337 adult subjects free from major haematological disease and acute inflammatory status, randomly recruited from the general population of the Moli-sani study...
October 14, 2016: Haematologica
https://www.readbyqxmd.com/read/27695285/the-association-of-hematologic-inflammatory-markers-with-atherogenic-index-in-type-2-diabetic-retinopathy-patients
#19
Müberra Akdoğan, Yasemin Ustundag-Budak, Kagan Huysal
BACKGROUND: Atherogenic dyslipidemia is particularly common in people with type 2 diabetes (DM2). Platelets from patients with DM2 have increased reactivity and baseline activation. The aim of the present study is to evaluate the relationship between atherogenic index and hematologic inflammatory markers and to evaluate the relationship between these parameters and associated variables in diabetic retinopathy (DR) patients. METHODS: The medical records of all patients admitted to the eye clinic between January and December 2014 were evaluated systematically...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27692296/the-radioprotective-effect-of-metformin-against-cytotoxicity-and-genotoxicity-induced-by-ionizing-radiation-in-cultured-human-blood-lymphocytes
#20
Mohsen Cheki, Alireza Shirazi, Aziz Mahmoudzadeh, Javad Tavakkoly Bazzaz, Seyed Jalal Hosseinimehr
Metformin is a widely prescribed drug used in the treatment of patients with type 2 diabetes. In this study, the radioprotective effect of metformin was investigated against cytotoxicity and genotoxicity induced by ionizing radiation (IR) in human peripheral blood lymphocytes. Human lymphocytes were treated with metformin at concentrations 10 and 50μM for 2h and irradiated with 6MV X-rays. The radiation antagonistic potential of metformin was assessed by MTT [3-(4,5-dimethyl-2-thiaozolyl)-2,5-diphenyl-2H tetrazolium bromide] assay, chromosomal aberration (CA) analysis, cytokinesis blocked micronucleus (CBMN) assay, and flow cytometry...
October 2016: Mutation Research
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