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immunology and diabetes

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https://www.readbyqxmd.com/read/29162513/homeostatic-effect-of-laughter-on-diabetic-cardiovascular-complications-the-myth-turned-to-fact
#1
REVIEW
Mohamed H Noureldein, Assaad A Eid
AIMS: Laughter has been used for centuries to alleviate pain in morbid conditions. It was not until 1976 that scientists thought about laughter as a form of therapy that can modulate hormonal and immunological parameters that affect the outcome of many serious diseases. Moreover, Laughter therapy was shown to be beneficial in type 2 diabetes mellitus (T2DM) by delaying the onset of many diabetic complications. Laughter is also described to influence the cardiovascular and endothelial functions and thus may protect against diabetic cardiovascular complications...
November 18, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29151065/the-mrna-expression-levels-of-uncoupling-proteins-1-and-2-in-mononuclear-cells-from-patients-with-metabolic-disorders-obesity-and-type-2-diabetes-mellitus
#2
Sona Margaryan, Agata Witkowicz, Anna Partyka, Levon Yepiskoposyan, Gayane Manukyan, Lidia Karabon
INTRODUCTION: Type 2 diabetes mellitus (T2DM) and obesity are metabolic disorders whose major hallmark is insulin resistance. Impaired mitochondrial activity, such as reduced ratio of energy production to respiration, has been implicated in the development of insulin resistance. Uncoupling proteins (UCPs) are proton carriers, expressed in the mitochondrial inner membrane, that uncouple oxygen consumption by the respiratory chain from ATP synthesis. AIM: The aim of the study was to determine transcriptional levels of UCP1 and UCP2 in peripheral blood mononuclear cells (PBMCs) from patients with metabolic disorders: T2DM, obesity and from healthy individuals...
October 19, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/29146891/heart-transplantation-and-risk-of-cardiac-vasculopathy-development-what-factors-are-important
#3
Małgorzata Sobieszczańska-Małek, Jerzy Korewicki, Krzysztof Komuda, Małgorzata Karczmarz, Sylwia Szymańska, Alicja Cicha-Mikołajczyk, Paweł Bekta, Adam Parulski, Maciej Pronicki, Wiesława Grajkowska, Grzegorz Małek, Przemysław Leszek, Maria Kaczorowska, Mariusz Kuśmierczyk, Tomasz Zieliński
BACKGROUND The aim of this study was to find the main risk factors for development of cardiac allograft vasculopathy (CAV), especially factors identified before the surgical procedure and factors related to the recipient profile and the medical history of the donor. MATERIAL AND METHODS There were 147 patients who had heart transplantation (HT) included in this study: mean age was 45.8±15.3 years. All study patients had coronary angiography after HT. Analyzed risk factors were: non-immunologic recipient risk factors (age of transplantation, smoking, hypertension, lipids, diabetes, obesity and weight gain after HT), immunologic recipient risk factors (acute cellular rejection (ACR), acute humoral rejection (AMR), cytomegalovirus (CMV) episodes), and donor-related risk factors (age, sex, catecholamine usage, ischemic time, compatibility of sex and blood groups, cause of death, cardiac arrest)...
November 17, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29141886/pd-l1-genetic-overexpression-or-pharmacological-restoration-in-hematopoietic-stem-and-progenitor-cells-reverses-autoimmune-diabetes
#4
Moufida Ben Nasr, Sara Tezza, Francesca D'Addio, Chiara Mameli, Vera Usuelli, Anna Maestroni, Domenico Corradi, Silvana Belletti, Luca Albarello, Gabriella Becchi, Gian Paolo Fadini, Christian Schuetz, James Markmann, Clive Wasserfall, Leonard Zon, Gian Vincenzo Zuccotti, Paolo Fiorina
Immunologically based clinical trials performed thus far have failed to cure type 1 diabetes (T1D), in part because these approaches were nonspecific. Because the disease is driven by autoreactive CD4 T cells, which destroy β cells, transplantation of hematopoietic stem and progenitor cells (HSPCs) has been recently offered as a therapy for T1D. Our transcriptomic profiling of HSPCs revealed that these cells are deficient in programmed death ligand 1 (PD-L1), an important immune checkpoint, in the T1D nonobese diabetic (NOD) mouse model...
November 15, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29131413/the-effect-of-epitope-based-ligation-of-icam-1-on-survival-and-retransplantation-of-pig-islets-in-nonhuman-primates
#5
Jae-Il Lee, Jiyeon Kim, Yun-Jung Choi, Hi-Jung Park, Hye-Jin Park, Hae Joo Wi, Sunok Yoon, Jun-Seop Shin, Jin Kyun Park, Kyeong Cheon Jung, Eun Bong Lee, Hee Jung Kang, Eung Soo Hwang, Sang-Joon Kim, Chung-Gyu Park, Seong Hoe Park
BACKGROUND: Pig islet xenotransplantation is a promising alternative to allogeneic transplantation. However, the wide immunologic barrier between pigs and primates limits the long-term survival of the graft. MD-3, a novel monoclonal antibody (mAb) that recognizes a particular epitope of human ICAM-1, can render T cells tolerant to a xenograft by arresting dendritic cell maturation. We report the long-term survival of adult wild-type pig islets and successful retransplantation in nonhuman primates using a protocol comprising induction with MD-3 mAb and maintenance with anti-CD154 mAb and sirolimus...
November 12, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/29128634/vitamin-d-receptor-vdr-polymorphisms-are-associated-to-spontaneous-preterm-birth-and-maternal-aspects
#6
N R Javorski, C A D Lima, L V C Silva, S Crovella, J de Azêvedo Silva
Preterm birth (PTB) is featured by less than 37weeks of gestational age or fewer than 259days since the first day from the last menstrual period. Complications of PTB are the major cause of neonatal deaths, several factors are linked to PTB increased risk including immunological and genetics. Vitamin D plays an important role in immune response modulation and its action occurs through the vitamin D receptor (VDR), which recently has been described as overexpressed in human placenta during the pregnancy. Herein we assessed two single nucleotide polymorphisms (SNPs) FokI (rs2228570 A>G) and Cdx-2 (rs11568820 T>C), within VDR, using TaqMan fluorogenic probes, and differential susceptibility to SPTB...
November 8, 2017: Gene
https://www.readbyqxmd.com/read/29123529/t-cell-mediated-chronic-inflammatory-diseases-are-candidates-for-therapeutic-tolerance-induction-with-heat-shock-proteins
#7
REVIEW
Ariana Barbera Betancourt, Qingkang Lyu, Femke Broere, Alice Sijts, Victor P M G Rutten, Willem van Eden
Failing immunological tolerance for critical self-antigens is the problem underlying most chronic inflammatory diseases of humans. Despite the success of novel immunosuppressive biological drugs, the so-called biologics, in the treatment of diseases such rheumatoid arthritis (RA) and type 1 diabetes, none of these approaches does lead to a permanent state of medicine free disease remission. Therefore, there is a need for therapies that restore physiological mechanisms of self-tolerance. Heat shock proteins (HSPs) have shown disease suppressive activities in many models of experimental autoimmune diseases through the induction of regulatory T cells (Tregs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29113292/nod-mice-susceptible-to-pancreatic-autoimmunity-demonstrate-delayed-growth-of-pancreatic-cancer
#8
James Dooley, Emanuela Pasciuto, Vasiliki Lagou, Yulia Lampi, Tom Dresselaers, Uwe Himmelreich, Adrian Liston
Pancreatic cancer is a high mortality form of cancer, with a median survival only six months. There are multiple associated risk factors associated, most importantly type 2 diabetes, obesity, pancreatitis and smoking. The relative rarity of the disease, however, has made it difficult to dissect causative risk factors, especially with related risk factors. A major unanswered question with important therapeutic implications is the effect of immunological responses on pancreatic cancer formation, with data from other cancers suggesting the potential for local immunological responses to either increase cancer development or increase cancer elimination...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29110743/rosmarinic-acid-modes-of-action-medicinal-values-and-health-benefits
#9
Mahmoud Alagawany, Mohamed Ezzat Abd El-Hack, Mayada Ragab Farag, Marappan Gopi, Kumaragurubaran Karthik, Yashpal Singh Malik, Kuldeep Dhama
The supplementation of livestock rations with herbs containing bioactive components, such as rosmarinic acid (RA), have shown promising results as a natural feed additive in promoting growth, productive and reproductive performance, feed utilization, fertility, anti-oxidant status and immunologic indices. Furthermore, RA reportedly reduces the risks of various animal diseases and mitigates side effects of chemical and synthetic drugs. RA is a natural polyphenol present in several Lamiaceae herbs like Perilla frutescens, and RA is becoming an integral component of animal nutrition as it counters the effect of reactive oxygen species induced in the body as a consequence of different kinds of stressors...
November 7, 2017: Animal Health Research Reviews
https://www.readbyqxmd.com/read/29101016/synthesis-and-evaluation-of-dual-crosslinked-alginate-microbeads
#10
Sami I Somo, Kelly Langert, Chin-Yu Yang, Marcella K Vaicik, Veronica Ibarra, Alyssa A Appel, Banu Akar, Ming-Huei Cheng, Eric M Brey
Alginate hydrogels have been investigated for a broad variety of medical applications. The ability to assemble hydrogels at neutral pH and mild temperatures makes alginate a popular choice for the encapsulation and delivery of cells and proteins. Alginate has been studied extensively for the delivery of islets as a treatment for type 1 diabetes. However, poor stability of the encapsulation systems after implantation remains a challenge. In this paper, alginate was modified with 2-aminoethyl methacrylate hydrochloride (AEMA) to introduce groups that can be photoactivated to generate covalent bonds...
October 31, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29097999/clostridium-butyricum-cgmcc0313-1-protects-against-autoimmune-diabetes-by-modulating-intestinal-immune-homeostasis-and-inducing-pancreatic-regulatory-t-cells
#11
Lingling Jia, Kai Shan, Li-Long Pan, Ninghan Feng, Zhuwu Lv, Yajun Sun, Jiahong Li, Chengfei Wu, Hao Zhang, Wei Chen, Julien Diana, Jia Sun, Yong Q Chen
Recent evidence indicates that indigenous Clostridium species induce colonic regulatory T cells (Tregs), and gut lymphocytes are able to migrate to pancreatic islets in an inflammatory environment. Thus, we speculate that supplementation with the well-characterized probiotics Clostridium butyricum CGMCC0313.1 (CB0313.1) may induce pancreatic Tregs and consequently inhibit the diabetes incidence in non-obese diabetic (NOD) mice. CB0313.1 was administered daily to female NOD mice from 3 to 45 weeks of age. The control group received an equal volume of sterile water...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29093700/isogenic-cellular-systems-model-the-impact-of-genetic-risk-variants-in-the-pathogenesis-of-type-1-diabetes
#12
REVIEW
Mark A Wallet, Katherine E Santostefano, Naohiro Terada, Todd M Brusko
At least 57 independent loci within the human genome confer varying degrees of risk for the development of type 1 diabetes (T1D). The majority of these variants are thought to contribute to overall genetic risk by modulating host innate and adaptive immune responses, ultimately resulting in a loss of immunological tolerance to β cell antigens. Early efforts to link specific risk variants with functional alterations in host immune responses have employed animal models or genotype-selected individuals from clinical bioresource banks...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29092650/phenotypic-characterization-of-regulatory-t-cells-populations-in-maternal-blood-cord-blood-and-placenta-from-diabetic-mothers
#13
A A Queiroz, E L França, C C P Hara, M S Honorio, D L G Fagundes, I M P B Calderon, A C Honorio-França
Changes in regulatory T cells (Treg) in peripheral blood are associated with a number of pathologies, including diabetes. However, the immunological responses of pregnant diabetic women remain scarcely known, and the effects of Treg cells in these patients have yet to be investigated. The present study characterized the expression of regulatory T cells in the maternal blood, cord blood and placenta of diabetic pregnant women. The women were divided according to glycemic status into a nondiabetic (ND; N = 20) or type 2 diabetic (T2DM; N = 20) group...
November 1, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29075367/cardiovascular-protective-effects-of-salvianic-acid-a-on-db-db-mice-with-elevated-homocysteine-level
#14
Lei Gao, Parco M Siu, Shun-Wan Chan, Christopher W K Lai
The onsets of left ventricular hypertrophy (LVH) and endothelial dysfunction (ED) in diabetics, especially in those with elevated homocysteine (Hcy), precede the development of cardiovascular (CV) events. Salvianic acid A (SAA) is a renowned Traditional Chinese Medicine (TCM) that has been applied in the treatment of cardiovascular disease for many decades. In this study, we aimed (1) to investigate the CV protective effects of SAA on ameliorating LVH and ED in db/db mice with elevated blood Hcy level and (2) to decipher whether the observed CV protective effects of SAA are associated with Hcy metabolism by modulating the methylation potential and redox status in the liver of the db/db mice with elevated blood Hcy level...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29051099/hyperglycemia-induced-reactive-species-trigger-structural-changes-in-human-serum-albumin-of-type-1-diabetic-subjects
#15
Zarina Arif, Km Neelofar, Mir Yasir Arfat, Asif Zaman, Akhlas Tarannum, Iffat Parveen, Shafeeque Ahmad, Md Adnan Khan, Asim Badar, Shireen Naaz Islam
Chronic oxidative stress fuels pathogenesis of a large set of diseases. Oxidative stress is the cause and consequence of numerous diseases including type 1 diabetes mellitus (T1DM), in which there is selective destruction of insulin producing pancreatic β-cells. Studies have documented that hyperglycemia produces profound stress. In vivo production of numerous reactive oxygen, nitrogen, chlorine species and lipid/sugar oxidation products are result of persistent hyperglycemia. Post-translational modifications by reactive species may create new antigenic epitopes and play a role in the development of autoimmune response...
October 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29040050/latent-autoimmune-diabetes-in-adults-in-north-indian-region-assessment-of-%C3%AE-cell-function-metabolic-and-immunological-features
#16
Alok Kumar, Alberto de Leiva
BACKGROUND: We undertook a study to assess β-cell function metabolic and immunological features of patients with latent autoimmune diabetes in adults (LADA) and assess heterogeneity within LADA based on low and high glutamic acid decarboxylase autoantibodies (GADA) titers. METHODS: A total of 139 patients with adult-onset diabetes were examined cross-sectionally in the National capital region of Northern India. Medical history of all subjects was reviewed with the aim of collecting clinical data...
October 17, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29029077/association-of-obesity-diabetes-and-risk-of-tuberculosis-two-population-based-cohorts
#17
Hsien-Ho Lin, Chieh-Yin Wu, Chih-Hui Wang, Han Fu, Knut Lonnroth, Yi-Cheng Chang, Yen-Tsung Huang
Background: Mounting data has revealed that body mass index (BMI) is inversely associated with risk of active tuberculosis. The inverse association presents a "paradox" with regard to diabetes, since obesity is a major determinant of diabetes, and diabetes is a well-known risk factor for tuberculosis. Methods: We conducted two population-based cohort studies involving 167,392 participants. The main exposure was BMI and diabetes ascertained at baseline. Occurrence of incident tuberculosis was ascertained from the national Tuberculosis Registry...
September 26, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29025879/tcf7l2-genetic-variants-contribute-to-phenotypic-heterogeneity-of-type-1-diabetes
#18
Maria J Redondo, Susan Geyer, Andrea K Steck, Jay Sosenko, Mark Anderson, Peter Antinozzi, Aaron Michels, John Wentworth, Ping Xu, Alberto Pugliese
OBJECTIVE: The phenotypic diversity of type 1 diabetes suggests heterogeneous etiopathogenesis. We investigated the relationship of type 2 diabetes-associated transcription factor 7 like 2 (TCF7L2) single nucleotide polymorphisms (SNP) with immunologic and metabolic characteristics at type 1 diabetes diagnosis. RESEARCH DESIGN AND METHODS: We studied TrialNet participants with newly diagnosed autoimmune type 1 diabetes with available TCF7L2 rs4506565 and rs7901695 SNP data (n = 810; median age 13...
October 12, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28992525/have-we-pushed-the-needle-for-treatment-of-type-1-diabetes
#19
REVIEW
Nida Naushad, Ana Luisa Perdigoto, Jinxiu Rui, Kevan C Herold
Studies with immunologics have shown that the natural history of Type 1 diabetes can be modified. These studies have targeted key mediators of the disease and recent analyses, together with studies in preclinical models have identified mechanisms that may be involved in the clinical effects. Several issues remain including specificity of the interventions, adverse effects of the treatments, and duration of their effects. Future studies are likely to include more specific approaches with agents such as cell therapies with selected immune regulatory subsets, antigen specific therapies, and combinations of agents with complementary mechanisms of activity...
October 6, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28988596/tnf-%C3%AE-il-10-ratio-an-independent-predictor-for-coronary-artery-disease-in-north-indian-population
#20
Reena Kumari, Sandeep Kumar, M Kaleem Ahmad, Rajeev Singh, Akshayaya Pradhan, Sharad Chandra, Sudhir Kumar
BACKGROUND/AIM: Cytokines are responsible for the modulation of immunological and inflammatory processes and play a significant role in the pathogenesis of coronary artery disease (CAD). Tumor necrosis factor-alpha (TNF-α) are considered as a pro inflammatory and interleukin-10 (IL-10) anti inflammatory have been shown to predict the risk of incident of CAD. Aim of present study is to examine the impact of the TNF-α and Il-10 levels on various components of the CAD. METHODS: Total 580 subjects were recruited in the present study out of which 290 diagnosed CAD subjects (Age 51...
September 22, 2017: Diabetes & Metabolic Syndrome
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