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lymphocytes and diabetes

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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/28098108/the-relationship-between-mean-platelet-volume-and-neutrophil-lymphocyte-ratio-with-inflammation-and-proteinuria-in-chronic-kidney-disease
#2
Gulay Yilmaz, Can Sevinc, Sedat Ustundag, Yasemin Coskun Yavuz, Tuba Hacıbekiroglu, Esra Hatipoglu, Mehmet Baysal
Atherosclerosis, which develops as a result of inflammation, is the most important cause of morbidity and mortality in chronic kidney disease (CKD). In this study, we investigated the relationship of mean platelet volume (MPV) and neutrophil/lymphocyte ratio (NLR) with inflammation and proteinuria in patients with CKD Stage 3-4. Healthy individuals who applied to nephrology clinic for checkup purposes acted as controls. Fifty-three patients and 30 healthy controls were included in the study. Patients with diabetes mellitus, active infection, malignancy, and coronary artery disease were excluded from the study...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28074676/potential-route-of-th17-treg-cell-dynamics-in-targeting-type-1-diabetes-and-rheumatoid-arthritis-an-autoimmune-disorder-perspective
#3
Suresh Kumar Karri, A Sheela
Cytokines, small secreted proteins, have a specific effect on the interactions and communications between cells. They play a pivotal role in the pathogenesis of autoimmune diseases. Factors in the breakdown of self-tolerance and the subsequent events leading to the induction of pathogenic responses remain unclear for most of the autoimmune diseases. Large numbers of studies have revealed a general scheme in which pro-inflammatory cytokines contribute to the initiation and propagation of autoimmune inflammation, whereas anti-inflammatory cytokines facilitate the regression of inflammation and thereby recovery from the disease...
January 11, 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28073178/polyclonal-and-monoclonal-antibodies-for-induction-therapy-in-kidney-transplant-recipients
#4
REVIEW
Penny Hill, Nicholas B Cross, A Nicholas R Barnett, Suetonia C Palmer, Angela C Webster
BACKGROUND: Prolonging kidney transplant survival is an important clinical priority. Induction immunosuppression with antibody therapy is recommended at transplantation and non-depleting interleukin-2 receptor monoclonal antibodies (IL2Ra) are considered first line. It is suggested that recipients at high risk of rejection should receive lymphocyte-depleting antibodies but the relative benefits and harms of the available agents are uncertain. OBJECTIVES: We aimed to: evaluate the relative and absolute effects of different antibody preparations (except IL2Ra) when used as induction therapy in kidney transplant recipients; determine how the benefits and adverse events vary for each antibody preparation; determine how the benefits and harms vary for different formulations of antibody preparation; and determine whether the benefits and harms vary in specific subgroups of recipients (e...
January 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28070489/acute-disseminated-histoplasmosis-with-atypical-lymphocytosis-in-an-immunocompetent-host
#5
Ayman Elbadawi, Hamdy M A Ahmed, Hussain Adly, Mohamed A Elkhouly, Samar Abohamed, Ann R Falsey
65 year-old-male presented with a one-week history of high grade fever, fatigue and confusion which began abruptly two days after a cystoscopy procedure. Past medical history included pulmonary sarcoidosis diagnosed by mediastinal lymph biopsy, diabetes and hypertension. On admission he was febrile and confused with stable vital signs. Initial workup included negative Head CT and lumbar puncture. Blood work revealed normal metabolic and liver function tests with progressive anemia, thrombocytopenia and atypical lymphocytosis of 15-20%...
2017: IDCases
https://www.readbyqxmd.com/read/28069642/alpha-1-antitrypsin-enhances-islet-engraftment-by-suppression-of-instant-blood-mediated-inflammatory-reaction
#6
Jingjing Wang, Zhen Sun, Wenyu Gou, David B Adams, Wanxing Cui, Katherine A Morgan, Charlie Strange, Hongjun Wang
Islet cell transplantation has limited effectiveness because of an instant blood-mediated inflammatory reaction (IBMIR) that occurs immediately after cell infusion and leads to dramatic β cell death. In intraportal islet transplantation models using mouse and human islets, we demonstrated that alpha-1 antitrypsin (AAT, Prolastin-C), a serine protease inhibitor used for the treatment of AAT deficiency, inhibits IBMIR and cytokine-induced inflammation in islets. In mice, more diabetic recipients reached normoglycemia after intraportal islet transplantation when they were treated with AAT compared to mice treated with saline...
January 9, 2017: Diabetes
https://www.readbyqxmd.com/read/28065853/sitagliptin-inhibit-human-lymphocytes-proliferation-and-th1-th17-differentiation-in-vitro
#7
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
#8
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/28038805/nutritional-status-is-related-to-heart-failure-severity-and-hospital-readmissions-in-acute-heart-failure
#9
Rosa María Agra Bermejo, Rocío González Ferreiro, Alfonso Varela Román, Inés Gómez Otero, Omar Kreidieh, Patricia Conde Sabarís, Moisés Rodríguez-Mañero, María Moure González, Ana Seoane Blanco, Alejandro Virgós Lamela, Alberto García Castelo, Jose Ramón González Juanatey
BACKGROUND: Malnutrition is common in hospitalized heart failure (HF) patients and predicts adverse outcomes. The relationship between nutritional status and outcomes in HF has been partially studied. Our aim was to determine the relationship between the nutritional status and the long-term prognosis in patients hospitalized for acute HF. METHODS: We analyzed 145 patients admitted consecutively to a cardiology department for acute HF. Nutritional status was measured with the CONUT method, a validated scale based on laboratory testing (albumin; cholesterol; lymphocytes) during hospitalization...
December 19, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28017281/neutrophil-lymphocyte-ratio-and-platelet-lymphocyte-ratio-as-useful-predictive-markers-of-prediabetes-and-diabetes-mellitus
#10
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/27999237/resting-and-activated-natural-tregs-decrease-in-the-peripheral-blood-of-patients-with-atherosclerosis
#11
Mohammadreza Yazdani, Shahdad Khosropanah, Ahmad Hosseini, Mehrnoosh Doroudchi
BACKGROUND: Atherosclerosis is a chronic inflammatory disease affecting large and medium arteries. CD4+ T cells are known to play a role in the progression of the disease. CD4+CD25+Foxp3+ natural Treg (nTreg) cells seem to have a protective role in the disease and their reduction in acute coronary syndrome is recently shown. OBJECTIVE: To investigate the frequency of nTreg subsets in the peripheral blood of patients with atherosclerosis. METHODS: Confirmation of atherosclerosis was done by angiography and 15 ml heparinized blood was obtained from each of the 13 non-diabetic patients and 13 non-diabetic, non-smoker individuals with normal/insignificant coronary artery disease confirmed by angiography...
December 2016: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/27978533/history-of-chronic-inflammatory-disorders-increases-the-risk-of-merkel-cell-carcinoma-but-does-not-correlate-with-merkel-cell-polyomavirus-infection
#12
Helka Sahi, Harri Sihto, Miia Artama, Virve Koljonen, Tom Böhling, Eero Pukkala
BACKGROUND: We aimed to assess the connection between chronic inflammatory disorders (CIDs) and Merkel cell carcinoma (MCC). METHODS: Merkel cell carcinoma cases diagnosed in 1978-2009 were extracted from the Finnish Cancer Registry and controls from the Population Registry. Information on reimbursed CIDs was linked to clinicopathological data including Merkel cell polyomavirus (MCV) status by qPCR and immunohistochemistry for the large T antigen of MCV (LTA), Ki-67 and tumour-infiltrating lymphocytes...
January 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/27955852/-chronic-appendicitis-due-to-multiple-fecaliths-a-case-report
#13
Álvaro José Montiel-Jarquín, Celso Ramírez-Sánchez, Eugenio García-Cano, Nicolás González-Hernández, Fabiola Rodríguez-Pérez, Ivan Alvarado-Ortega
BACKGROUND: The appendix inflammatory process is the most common cause of chronic abdominal pain in the right lower quadrant. The frequency of appendiceal lumen obstruction by fecalith ranges from 10 to 20%; few cases of obstruction by multiple fecaliths had been reported. CLINICAL CASE: Sixty-nine years old male, diabetic and hypertensive in control, he underwent bowel resection 30 years previously. He completed 6 months with intermittent, mild pain in the right lower quadrant abdomen; 14 days prior to admission with increasing pain, nausea, vomiting, constipation, abdominal distension and absence of peristalsis; 12,750 leukocytes, neutrophils 90%; plain abdominal radiography without specific bowel pattern, TAC with 3 dense images in right lower quadrant; exploratory laparotomy was performed and perforated appendix with 3 free fecaliths was found...
December 9, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27942583/tissue-distribution-and-clonal-diversity-of-the-t-and-b-cell-repertoire-in-type-1-diabetes
#14
Howard R Seay, Erik Yusko, Stephanie J Rothweiler, Lin Zhang, Amanda L Posgai, Martha Campbell-Thompson, Marissa Vignali, Ryan O Emerson, John S Kaddis, Dave Ko, Maki Nakayama, Mia J Smith, John C Cambier, Alberto Pugliese, Mark A Atkinson, Harlan S Robins, Todd M Brusko
The adaptive immune repertoire plays a critical role in type 1 diabetes (T1D) pathogenesis. However, efforts to characterize B cell and T cell receptor (TCR) profiles in T1D subjects have been largely limited to peripheral blood sampling and restricted to known antigens. To address this, we collected pancreatic draining lymph nodes (pLN), "irrelevant" nonpancreatic draining lymph nodes, peripheral blood mononuclear cells (PBMC), and splenocytes from T1D subjects (n = 18) and control donors (n = 9) as well as pancreatic islets from 1 T1D patient; from these tissues, we collected purified CD4(+) conventional T cells (Tconv), CD4(+) Treg, CD8(+) T cells, and B cells...
December 8, 2016: JCI Insight
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/27920091/interferon-gamma-limits-diabetogenic-cd8-t-cell-effector-responses-in-type-1-diabetes
#16
John P Driver, Jeremy J Racine, Cheng Ye, Deanna J Lamont, Brittney N Newby, Caroline G McPhee-Leeth, Harold D Chapman, Todd M Brusko, Yi-Guang Chen, Clayton E Mathews, David V Serreze
Type 1 diabetes development in the NOD mouse model is widely reported to be dependent on high-level production by autoreactive CD4(+) and CD8(+) T-cells of IFNγ, generally considered a pro-inflammatory cytokine. However, IFNγ can also participate in tolerance induction pathways, indicating it is not solely pro-inflammatory. This study addresses how IFNγ can suppress activation of diabetogenic CD8(+) T-cells. CD8(+) T-cells transgenically expressing the diabetogenic AI4 T-cell receptor (TCR) adoptively transferred disease to otherwise unmanipulated NOD...
December 5, 2016: Diabetes
https://www.readbyqxmd.com/read/27917204/modulation-of-immune-cells-and-th1-th2-cytokines-in-insulin-treated-type-2-diabetes-mellitus
#17
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
#18
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)...
November 30, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27914923/alloantigen-gene-transfer-to-hepatocytes-promotes-tolerance-to-pancreatic-islet-graft-by-inducing-cd8-regulatory-t-cells
#19
Valentin Le Guen, Jean-Paul Judor, Françoise Boeffard, Vanessa Gauttier, Nicolas Ferry, Jean-Paul Soulillou, Sophie Brouard, Sophie Conchon
BACKGROUND & AIM: Induction of donor-specific immune tolerance is a good alternative to chronic life-long immunosuppression for transplant patients. Donor major histocompatibility complex (MHC) molecules represent the main targets of the allogeneic immune response of transplant recipients. Liver-targeted gene transfer with viral vectors induces tolerance toward the encoded antigen. The aim of this work was to determine whether alloantigen gene transfer to hepatocytes induces tolerance and promotes graft acceptance...
November 30, 2016: Journal of Hepatology
https://www.readbyqxmd.com/read/27911007/assessment-of-subclinical-atherosclerosis-in-hidradenitis-suppurativa
#20
José C Pascual, Iris González, Diego Corona, Patricia Hispán, José M Ramos, José Sánchez-Paya, Gregor B Jemec
BACKGROUND: Patients with Hidradenitis Suppurativa (HS) have an increased prevalence of traditional cardiovascular (CV) risk factors. OBJECTIVE: Our aim was to investigate the association between subclinical atherosclerosis, detected by carotid ultrasound, and HS. METHODS: A prospective observation and analytical study assessing subclinical atherosclerosis using carotid ultrasound in patients with HS. RESULTS: A total of 62 HS-patients and 62 matched-controls were studied...
December 2, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
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