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lymphocytes and diabetes type 2

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
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 (VD) deficiency is highly prevalent in T1D which can aggravate immune dysfunction. High dose VD treatment may enhance Tregs and improve metabolism in T1D patients. METHODS: In a randomized, double-blind, placebo-controlled trial with cross-over design, patients received either for three months cholecalciferol 4000 IU/d, followed by three months placebo or the sequential alternative...
October 20, 2016: Diabetes/metabolism Research and Reviews
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
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
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
N P Amdare, V K Khatri, R S P Yadav, A Tarnekar, K Goswami, M V R Reddy
Epidemiological and experimental evidence has supported the concept of using helminths as alternative bio-therapeutic agents in the treatment of type 1 diabetes (T1D). In the current study, two filarial proteins, recombinant Wuchereria bancrofti L2 (rWbL2) and Brugia malayi abundant larval transcript 2 (rBmALT-2) have been investigated, individually and in combination, for their therapeutic potential in streptozotocin (STZ)-induced T1D. The rWbL2 and rBmALT-2 proteins, when administered individually or in combination, have resulted in lowering of the blood glucose levels and reducing the incidence of T1D in mice...
September 26, 2016: Journal of Helminthology
J Radtke, N Dietze, L Fischer, E-G Achilles, J Li, S Scheidat, F Thaiss, B Nashan, M Koch
BACKGROUND: BK polyomavirus (BKV) infection and BKV nephropathy (BKVN) are risk factors for allograft function and survival. METHODS: We retrospectively analyzed BK viremia and BKVN in 348 patients who received a kidney transplantation donated after brain death (n = 232) or living donation (n = 116) between 2008 and 2013. 266 patients were treated with standard immunosuppression consisting of basiliximab induction, calcineurin inhibitor (CNI), and mycophenolate (MPA, n = 219) or everolimus (n = 47)...
September 17, 2016: Transplant Infectious Disease: An Official Journal of the Transplantation Society
Agnieszka Zubkiewicz-Kucharska, Anna Noczyńska
BACKGROUND: It was assumed that T γδ lymphocytes (T γδ) are involved in the autoimmune destruction of beta cells, presumably as regulatory cells. OBJECTIVES: The aim of this paper was to investigate T γδ cells mean percentage (%) in peripheral blood in patients with type 1 diabetes (T1DM) at the time of diagnosis and after twelve months of observation. MATERIAL AND METHODS: A total of 41 patients (21 boys, 51.2%) with new-onset T1DM were included...
July 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Rafighe Ghiasi, Farhad Ghadiri Soufi, Gisou Mohaddes, Alireza Alihemmati, Mohammad H Somi, Hadi Ebrahimi, Fariba Mirzaie Bavil, Mohammad R Alipour
Due to key role of inflammation in pathogenesis of type 2 diabetes mellitus (T2DM), aim of this study was evaluating the influance of regular swimming on serum levels of C-reactive protein (CRP), interlukin-6 (IL-6), tumor necrosis factor-α (TNF-α) in high-fat diet-induced diabetic rats. Fourty male Wistar rats were randomly divided into control, diabetic , exercise and diabetic-exercise groups (n = 10). Diabetes was induced by high-fat diet and streptozotocin (35 mg/kg, i.p.). In exercise groups, after induction of diabetes, animals were subjected to swimming (60 min/5 days a week) for 10 weeks...
September 9, 2016: General Physiology and Biophysics
Zuzana Parackova, Jana Kayserova, Klara Danova, Kristyna Sismova, Eva Dudkova, Zdenek Sumnik, Stanislava Kolouskova, Jan Lebl, Katerina Stechova, Anna Sediva
T regulatory cells (Tregs) are essential for maintaining tolerance and preventing autoimmune diseases, such as type 1 diabetes (T1D). In our study, we investigated CD25 + FoxP3 + Tregs and thymic FoxP3 + Helios + Tregs in large cohorts of children with T1D at onset and with long-term T1D, and further in their relatives and healthy controls. We observed significantly decreased numbers of CD25 + FoxP3 + Tregs, but not FoxP3 + Helios + Tregs, in long-term patients compared with the control group and T1D onset...
August 25, 2016: Autoimmunity
Seyedeh Azin Azadi, Ebrahim Vasheghani-Farahani, Sameereh Hashemi-Najafbabadi, Aliashraf Godini
Alginate-based scaffolds have received considerable attention for biomedical application because of their biocompatibility and ease of preparation. The application of alginate hydrogels for encapsulation of pancreatic islets is known as a potential treatment for type I diabetes. In this study, dextran-spermine coated microcapsules of alginate containing pancreatic islets were prepared, and then co-cultured with lymphocytes for 7 days. In addition, to prevent fibrosis and evaluating the effect of anti-inflammatory drugs, pentoxifylline was loaded in the inner layer of microcapsules...
2016: Progress in biomaterials
Mohammad Mahdi Eftekharian, Jamshid Karimi, Mojgansadat Safe, Ahmad Sadeghian, Shiva Borzooei, Ehsan Siahpoushi
AIMS/INTRODUCTION: Since changes in some immune system indicators such as leukocyte count and neutrophil to lymphocyte ratio in the blood and Inflammation is directly in relation with the pathogenesis of type 2 diabetes, metabolic syndrome and atherosclerosis, measuring these indicators in patients with type 2 diabetes and comparing them with control group can be a suitable indicator of Inflammation and prognosis of the disease. MATERIALS AND METHODS: The current study was done on 75 patients with type 2 diabetes and 72 healthy individuals as patient and healthy group respectively...
June 8, 2016: Human Antibodies
Chengwen Fei, Yao Wang, Yu Gong, Hui Xu, Qian Yu, Yuling Shi
BACKGROUND: Reactive perforating collagenosis (RPC) is a rare form of transepithelial elimination, in which altered collagen is extruded through the epidermis. There are 2 types of RPC, acquired RPC (ARPC) and inherited RPC, while the latter is extremely rare. Here we report on 1 case of ARPC. METHODS: A 73-year-old female was presented with strongly itchy papules over her back and lower limbs for 3 months. She denied the history of oozing or vesiculation. A cutaneous examination showed diffusely distributed multiple well-defined keratotic papules, 4 to 10 mm in diameter, on the bilateral lower limbs and back as well as a few papules on her chest and forearm...
July 2016: Medicine (Baltimore)
E Theodorakopoulou, Z Z N Yiu, C Bundy, L Chularojanamontri, M Gittins, L A Jamieson, L Motta, R B Warren, C E M Griffiths
BACKGROUND: There is accumulating evidence that early onset psoriasis (EOP; presenting at or before 40 years of age) and late onset psoriasis (LOP; presenting after 40 years of age) are different diseases. OBJECTIVES AND METHODS: We aimed to identify potential differences between EOP and LOP by assessing immunocytochemistry involved (PP) and uninvolved (PN) skin (n=31) and demographics, psoriasis phenotype and psychological parameters (n=340) in a cross-sectional study...
July 26, 2016: British Journal of Dermatology
Yumei Jia, Yongzhen Zhao, Chunsheng Li, Rui Shao
OBJECTIVE: To investigate the expression of Programmed death-1 (PD-1) on T lymphocytes in patients with type 2 diabetes mellitus (T2DM) and severe sepsis, we determined PD-1 expression on CD4+ and CD8+ T lymphocytes of patients with T2DM, severe sepsis, and T2DM combined with severe sepsis. RESEARCH DESIGN AND METHODS: This prospective and observational study included 50 healthy controls, 80 cases of T2DM without infection (T2DM group), 88 cases of severe sepsis without T2DM (SS group), and 77 cases of severe sepsis combined with T2DM (SS+T2DM group)...
2016: PloS One
Zara Zelenko, Emily Jane Gallagher, Irini Markella Antoniou, Deepali Sachdev, Anupma Nayak, Douglas Yee, Derek LeRoith
Type 2 diabetes (T2D) is associated with increased cancer risk and cancer-related mortality. Data herein show that we generated an immunodeficient hyperinsulinemic mouse by crossing the Rag1(-/-) mice, which have no mature B or T lymphocytes, with the MKR mouse model of T2D to generate the Rag1(-/-) (Rag/WT) and Rag1(-/-)/MKR(+/+) (Rag/MKR) mice. The female Rag/MKR mice are insulin resistant and have significantly higher nonfasting plasma insulin levels compared with the Rag/WT controls. Therefore, we used these Rag/MKR mice to investigate the role of endogenous hyperinsulinemia on human cancer progression...
September 2016: Endocrine-related Cancer
Javad Kiani, Saedeh Khadempar, Mehrdad Hajilooi, Hamzeh Rezaei, Fatemeh Keshavarzi, Ghasem Solgi
Many studies have shown that cytotoxic T lymphocyte antigen-4 (CTLA-4) gene variants are associated with several autoimmune diseases particularly type 1 diabetes. Due to the lack of consistent data for this association with type 2 diabetes (T2D), this study explored the possible influence of CTLA-4 gene polymorphisms at -1722 (T/C), -318 (C/T), and +49 (G/A) positions for susceptibility to T2D in relation with neuropathy. One hundred and eleven unrelated patients with T2D [49 patients with diabetic peripheral neuropathy (DPN) and 62 patients without PDN] and 100 healthy ethnic- and gender-matched controls were included in this study...
June 2016: Iranian Journal of Allergy, Asthma, and Immunology
Robert Krysiak, Henryk Rudzki, Gabriela Handzlik-Orlik, Anna Gdula-Dymek, Bogusław Okopień
Peroxisome proliferator-activated receptor (PPAR)α activators (fibrates) are one of the major group of hypolipidemic agents. Apart from lowering plasma lipid levels, fibrates produce many other favourable effects that may potentially contribute to their clinical effectiveness. Administered to patients with abnormal glucose and lipid homeostasis participating in our studies, these agents reduced monocyte and lymphocyte secretory function, systemic inflammation, hemostasis and normalized adipose tissue function and these effects did not correlate with their lipid-lowering properties...
June 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
Erica W Wang, Andrew R Collins, Marco Y C Pang, Parco P M Siu, Claudia K Y Lai, Jean Woo, Iris F F Benzie
Oxidation-induced damage to DNA can cause mutations, phenotypic changes and apoptosis. Agents that oppose such damage offer potential therapies for disease prevention. Vitamin D administration reportedly lowered DNA damage in type 2 diabetic mice, and higher DNA damage was reported in mononuclear cells of severely asthmatic patients who were vitamin D deficient. We hypothesised that lower vitamin D status associates with higher oxidation-induced DNA damage. Vitamin D deficiency (plasma 25(OH)D < 50 nmol/l) is highly prevalent worldwide, and association with DNA damage has high potential importance and impact in regard to the future health of vitamin D deficient young adults...
July 8, 2016: Mutagenesis
Ken Yajima, Yoichi Oikawa, Kentaro Ogata, Akinori Hashiguchi, Akira Shimada
The loss of insulin-producing pancreatic β-cells in Type 1 diabetes mellitus (DM) is presumably the result of a T cell-mediated process. In general, CD8(+) T cells are the predominant lymphocytes in the insulitis lesions, and CD4(+) T cell-dominant insulitis is very rare. We present a case of a 72-year-old woman presented with excessive thirst and a 3-month history of weight loss. She was in a state of ketosis, and her plasma glucose concentration and HbA1c value were elevated. Moreover, anti-islet autoantibodies were positive, thus acute-onset Type 1 DM was diagnosed...
July 5, 2016: Endocrine Journal
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