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immunology and diabetes

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https://www.readbyqxmd.com/read/28100901/pancreas-transplant-with-duodeno-duodenostomy-and-caval-drainage-using-a-diamond-patch-graft-a-single-center-experience
#1
Je Ho Ryu, Tae Beom Lee, Young Mok Park, Kwang Ho Yang, Chong Woo Chu, Jung Hee Lee, Taeun Kim, Byung Hyun Choi
BACKGROUND The surgical technique used in pancreas transplant is essential for patient safety and graft survival, and problems exist with conventional strategies. When enteric exocrine drainage is performed, there is no method of immunologic monitoring other than direct graft pancreas biopsy. The most common cause of early graft failure is graft thrombosis, and adequate preventive and treatment strategies are unclear. To overcome these disadvantages, we suggest a modified surgical technique. MATERIAL AND METHODS Eleven patients underwent pancreas transplant with our modified technique...
January 19, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28068891/immunological-variation-due-to-genetics-of-inflammatory-snps-and-age-and-impact-on-disease-manifestation
#2
Gary R Burleson
The immune system is a critical component in defense against viral, bacterial, parasitic, and fungal diseases. Immunological mechanisms, including immunological mediators, innate immunity, cell-mediated immunity, and humoral-mediated immunity, serve to maintain homeostasis and protect the host from disease. Immunological variation can impact defense mechanisms, however. Two factors in particular that can influence immune function are the single nucleotide polymorphisms (SNPs) and aging. SNPs affecting inflammatory cytokines are an important modifier involved in a number of diseases such as asthma, periodontal disease, atherosclerosis, diabetic retinopathy, psoriasis, and osteoporosis...
January 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28061809/oxidative-stress-biomarkers-and-their-relationship-with-cytokine-concentrations-in-overweight-obese-pregnant-women-and-their-neonates
#3
María Hernández-Trejo, Araceli Montoya-Estrada, Yessica Torres-Ramos, Aurora Espejel-Núñez, Alberto Guzmán-Grenfell, Rosa Morales-Hernández, Maricruz Tolentino-Dolores, Estibalitz Laresgoiti-Servitje
BACKGROUND: Oxidative damage present in obese/overweight mothers may lead to further oxidative stress conditions or inflammation in maternal and cord blood samples. Thirty-four pregnant women/newborn pairs were included in this study to assess the presence of oxidative stress biomarkers and their relationship with serum cytokine concentrations. Oxidative stress biomarkers and antioxidant enzymes were compared between the mother/offspring pairs. The presence of 27 cytokines was measured in maternal and cord blood samples...
January 7, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28061324/oral-corticosterone-administration-reduces-insulitis-but-promotes-insulin-resistance-and-hyperglycemia-in-male-nonobese-diabetic-mice
#4
Susan J Burke, Heidi M Batdorf, Adrianna E Eder, Michael D Karlstad, David H Burk, Robert C Noland, Z Elizabeth Floyd, J Jason Collier
Steroid-induced diabetes is the most common form of drug-induced hyperglycemia. Therefore, metabolic and immunological alterations associated with chronic oral corticosterone were investigated using male nonobese diabetic mice. Three weeks after corticosterone delivery, there was reduced sensitivity to insulin action measured by insulin tolerance test. Body composition measurements revealed increased fat mass and decreased lean mass. Overt hyperglycemia (>250 mg/dL) manifested 6 weeks after the start of glucocorticoid administration, whereas 100% of the mice receiving the vehicle control remained normoglycemic...
January 4, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28058228/corticosteroid-minimization-in-renal-transplantation-careful-patient-selection-enables-feasibility
#5
Georgios Vlachopanos, Julie M Bridson, Ajay Sharma, Ahmed Halawa
AIM: To explore the benefits and harms of corticosteroid (CS) minimization following renal transplantation. METHODS: CS minimization attempts to improve cardiovascular risk factors (hypertension, diabetes, dyslipidemia), to enhance growth in children, to ameliorate bone disease and to lead to better compliance with immunosuppressive agents. Nevertheless, any benefit must be carefully weighed against the reduction in net immunosuppression and the potential harm to renal allograft function and survival...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28045403/immunologic-impact-of-the-intestine-in-metabolic-disease
#6
Daniel A Winer, Shawn Winer, Helen J Dranse, Tony K T Lam
Obesity and diabetes are associated with increased chronic low-grade inflammation and elevated plasma glucose levels. Although inflammation in the fat and liver are established features of obesity-associated insulin resistance, the intestine is emerging as a new site for immunologic changes that affect whole-body metabolism. Specifically, microbial and dietary factors incurred by diet-induced obesity influence underlying innate and adaptive responses of the intestinal immune system. These responses affect the maintenance of the intestinal barrier, systemic inflammation, and glucose metabolism...
January 3, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28038946/hmgb1-modulation-in-pancreatic-islets-using-a-cell-permeable-a-box-fragment
#7
Yong Hwa Hwang, Min Jun Kim, Yong-Kyu Lee, Minhyung Lee, Dong Yun Lee
Although pancreatic islet implantation is an attractive strategy for curing diabetes mellitus, implanted cells are immunologically eliminated due to early islet graft loss. One of main issues in early islet graft loss is the secretion of high-mobility group-box-1 (HMGB1) protein from the damaged islet cells, which is known as a cytokine-like factor. Therefore, regulating the activity of HMGB1 protein offers an alternative strategy for improving outcomes of islet cell therapy. To this end, we first demonstrated that HMGB1 protein could be bound to its A-box fragment (HMGB1 A-box) with higher binding affinity, resembling anti-HMGB1 antibody...
December 28, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28029082/probiotics-in-curing-allergic-and-inflammatory-conditions-research-progress-and-futuristic-vision
#8
Kuldeep Dhama, Shyma K Latheef, Ashok Kumar Munjal, Rekha Khandia, Hari Abdul Samad, Hafiz M N Iqbal, Sunil K Joshi
BACKGROUND: Probiotics constitute the viable and beneficial microbes, which offer a dietary means to sustain the balance of gastro-intestinal (GI) microflora. Owing to their multiple health benefits, these have recently gained wide attention among researchers for exploring their potential in safeguarding the health of humans and animals. Probiotics could also modulate host-immune responses, thereby help in counteracting the immunological dysfunctions. Probiotics can inhibit the systemic invasion of pathogens entering through the GI mucosa/ oral cavity and have been found to possess effective prophylactic and therapeutic utilities against various infectious pathogens as well as non-infectious diseases and disorders...
December 26, 2016: Recent Patents on Inflammation & Allergy Drug Discovery
https://www.readbyqxmd.com/read/28027900/amorphous-aggregate-adducts-of-linker-histone-h1-turn-highly-immunologic-in-the-cancers-of-oesophagus-stomach-gall-bladder-and-ovary
#9
Abdul Rouf Mir, Moinuddin, Safia Habib
Hyperglycaemic influence on carcinogenesis and tumour progression is emerging as a link between diabetes and cancer. This work establishes the disturbed structural integrity of nucleosomal linker histone H1 by methyglyoxal (MG) and then correlates the role of modified H1 in the auto-immunopathogenesis of multiple cancers. MG modification caused a loss of free ε-amino groups in H1 and raised its β-sheet structural component with a consequence of non amyloid aggregation. It changed the folding-unfolding denaturation pattern of H1 and attached itself to the lysine residues of the protein eventually making up N(ε)-(carboxyethyl) lysine...
December 24, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28008169/advances-in-islet-encapsulation-technologies
#10
Tejal Desai, Lonnie D Shea
Type 1 diabetes is an autoimmune disorder in which the immune system attacks and destroys insulin-producing islet cells of the pancreas. Although islet transplantation has proved to be successful for some patients with type 1 diabetes, its widespread use is limited by islet donor shortage and the requirement for lifelong immunosuppression. An encapsulation strategy that can prevent the rejection of xenogeneic islets or of stem cell-derived allogeneic islets can potentially eliminate both of these barriers. Although encapsulation technology has met several challenges, the convergence of expertise in materials, nanotechnology, stem cell biology and immunology is allowing us to get closer to the goal of encapsulated islet cell therapy for humans...
December 23, 2016: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/27980006/differentiation-of-diabetes-by-pathophysiology-natural-history-and-prognosis
#11
Jay S Skyler, George L Bakris, Ezio Bonifacio, Tamara Darsow, Robert H Eckel, Leif Groop, Per-Henrik Groop, Yehuda Handelsman, Richard A Insel, Chantal Mathieu, Allison T McElvaine, Jerry P Palmer, Alberto Pugliese, Desmond A Schatz, Jay M Sosenko, John P H Wilding, Robert E Ratner
The American Diabetes Association, JDRF, the European Association for the Study of Diabetes, and the American Association of Clinical Endocrinologists convened a research symposium, "The Differentiation of Diabetes by Pathophysiology, Natural History and Prognosis" on 10-12 October 2015. International experts in genetics, immunology, metabolism, endocrinology, and systems biology discussed genetic and environmental determinants of type 1 and type 2 diabetes risk and progression, as well as complications. The participants debated how to determine appropriate therapeutic approaches based on disease pathophysiology and stage and defined remaining research gaps hindering a personalized medical approach for diabetes to drive the field to address these gaps...
December 15, 2016: Diabetes
https://www.readbyqxmd.com/read/27965714/doppler-ultrasound-in-kidney-diseases-a-key-parameter-in-clinical-long-term-follow-up
#12
REVIEW
Leonardo Spatola, Simeone Andrulli
Doppler ultrasound has been extensively used in detecting reno-vascular diseases, showing to be a non-invasive, safe, low cost and repeatable tool. The Renal Resistive Index (RRI) [(peak systolic velocity - end diastolic velocity)/peak systolic velocity] is a semi-quantitative index derived by Doppler evaluation of renal vascular bed. Normally RRI is in the range of 0.47-0.70, it increases with aging and, usually, it shows a difference between the two kidneys less than 5-8 %. RRI is an important prognostic marker in chronic kidney diseases (CKD), both in diabetic and non-diabetic kidney diseases, because, in longitudinal prospective studies, it significantly correlated with hemodynamic (ABPM, SBP, DBP, pulse pressure) and histopathological parameters (glomerular sclerosis, arteriolosclerosis, interstitial fibrosis/tubular atrophy, interstitial infiltration)...
December 2016: Journal of Ultrasound
https://www.readbyqxmd.com/read/27932185/inferior-vena-cava-duodenal-drainage-in-pancreas-alone-transplantation-for-chronic-pancreatitis-a-case-report
#13
B H Choi, Y M Park, K H Yang, C W Chu, J H Ryu
Enteric drainage has been the main trend in solitary pancreas transplantation. Compared with bladder drainage, it does not cause metabolic or urologic complications, but there is no way to perform immunologic monitoring, except by graft pancreas biopsy. Additionally, although portal drainage of the graft vein is considered physiological drainage, it has more of a risk for surgical complications. To overcome these disadvantages, we successfully performed inferior vena cava (IVC)-duodenal drainage in pancreas alone transplantation...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27931833/hyperglycemia-tumorigenesis-and-chronic-inflammation
#14
REVIEW
Shu-Chun Chang, Wei-Chung Vivian Yang
Hyperglycemia is the most prominent sign that characterizes diabetes. Hyperglycemia favors malignant cell growth by providing energy to cancer cells. Clinical studies also showed an increased risk of diabetes being associated with different types of cancers. In addition, poorly regulated glucose metabolism in diabetic patients is often found with increased levels of chronic inflammatory markers, e.g., interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α, and emerging evidence has highlighted activation of the immune response in the progression and development of cancer cells...
December 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27919957/simultaneous-administration-of-statins-and-pioglitazone-limits-tumor-growth-in-a-rat-model-of-malignant-glioma
#15
Jorge Humberto Tapia-Pérez, Robert Preininger, Elmar Kirches, Annegret Reinhold, Jana Butzmann, Sylvia Prilloff, Christian Mawrin, Thomas Schneider
BACKGROUND/AIM: Statins are cholesterol reducers with considerable dose-dependent effect against glioma cells. The apoptotic effect could be increased by combining statins or by adding pioglitazone (PGZ). The last one is an anti-diabetic drug, an agonist of the peroxisome proliferator-activated receptor-gamma (PPARG). We used an animal model to test the effect of such combination in vivo and we investigated the changes on immunological processes. MATERIALS AND METHODS: Thirty-three rats (F344/DuCrl) were anesthetized and glioblastoma (F98) cells were implanted stereotactically...
2016: Anticancer Research
https://www.readbyqxmd.com/read/27917198/diabetes-mellitus-among-tuberculosis-patients-a-cross-sectional-study-from-pakistan
#16
Zarfishan Tahir, Mansur-Ud-Din Ahmad, Abdul Majeed Akhtar, Tahir Yaqub, Muhammad Hassan Mushtaq, Hasnain Javed
BACKGROUND: The co-occurrence of diabetes mellitus (DM) and tuberculosis (TB) is largely associated with high frequency of morbidity. OBJECTIVE: To determine the prevalence of DM among TB patients and describe the socio-demographic and behavioral factors associated with TB-DM co-occurrence. METHODS: We enrolled 500 TB patients from September, 2014 to August 2015 at four major public sector hospitals of Lahore, Pakistan. A questionnaire was used to collect information regarding associated socio-demographic and behavioral factors of the patients...
September 2016: African Health Sciences
https://www.readbyqxmd.com/read/27893617/differential-role-of-b-cells-and-il-17-versus-ifn-%C3%AE-during-early-and-late-rejection-of-pig-islet-xenografts-in-mice
#17
Hee Kap Kang, Shusen Wang, Anil Dangi, Xiaomin Zhang, Amar Singh, Lei Zhang, James M Rosati, Wilma Suarez-Pinzon, Xuelian Deng, Xiaoyan Chen, Edward B Thorp, Bernhard J Hering, Stephen D Miller, Xunrong Luo
BACKGROUND: Xenogeneic islet transplantation is an emerging therapeutic option for diabetic patients. However, immunological tolerance to xenogeneic islets remains a challenge. METHODS: The current study used a pig-to-mouse discordant xenogeneic islet transplant model to examine anti-donor xenogeneic immune responses during early and late rejection, and to determine experimental therapeutic interventions that promote durable pig islet xenograft survival. RESULTS: We found that during early acute rejection of pig islet xenografts, the rejecting hosts exhibited a heavy graft infiltration with B220 B cells and a robust anti-pig antibody production...
November 23, 2016: Transplantation
https://www.readbyqxmd.com/read/27884168/ataxia-telangiectasia-a-review
#18
REVIEW
Cynthia Rothblum-Oviatt, Jennifer Wright, Maureen A Lefton-Greif, Sharon A McGrath-Morrow, Thomas O Crawford, Howard M Lederman
DEFINITION OF THE DISEASE: Ataxia telangiectasia (A-T) is an autosomal recessive disorder primarily characterized by cerebellar degeneration, telangiectasia, immunodeficiency, cancer susceptibility and radiation sensitivity. A-T is often referred to as a genome instability or DNA damage response syndrome. EPIDEMIOLOGY: The world-wide prevalence of A-T is estimated to be between 1 in 40,000 and 1 in 100,000 live births. CLINICAL DESCRIPTION: A-T is a complex disorder with substantial variability in the severity of features between affected individuals, and at different ages...
November 25, 2016: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/27873432/low-perinatal-zinc-status-is-not-associated-with-the-risk-of-type-1-diabetes-in-children
#19
Julie N Kyvsgaard, Anne J Overgaard, Louise D Jacobsen, Steffen U Thorsen, Christian B Pipper, Thomas H Hansen, Søren Husted, Henrik B Mortensen, Flemming Pociot, Jannet Svensson
AIM: Immunologic events during fetal life may play a part in the pathogenesis of type 1 diabetes (T1D). As zinc is involved in immunologic processes, the purpose was to investigate perinatal zinc status and the later risk of developing T1D and association to age at onset. METHODS: A population-based case-control study based on data from Danish Childhood Diabetes Register and the Danish Newborn Screening Biobank. Cases and controls were matched by birth year and month...
November 22, 2016: Pediatric Diabetes
https://www.readbyqxmd.com/read/27872471/recent-progress-in-xenotransplantation-with-emphasis-on-virological-safety
#20
Joachim Denner
Xenotransplantation is a new technology that may help to overcome the shortage of human tissues and organs available for the treatment of tissue and organ failure. Remarkable progress has recently been made in this field. First, understanding of the mechanisms of immunological rejection, mainly of the hyperacute rejection, allowed generating numerous genetically modified pigs to overcome rejection. Second, based on these genetically modified animals and new immunosuppression regimens, long-term survival of non-human primate recipients of heart, kidney, and islet cell cells has been reported...
November 22, 2016: Annals of Transplantation: Quarterly of the Polish Transplantation Society
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