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https://www.readbyqxmd.com/read/28727822/dna-methylation-of-candidate-genes-in-peripheral-blood-from-patients-with-type-2-diabetes-or-the-metabolic-syndrome
#1
Sanne D van Otterdijk, Alexandra M Binder, Katarzyna Szarc Vel Szic, Julia Schwald, Karin B Michels
INTRODUCTION: The prevalence of type 2 diabetes (T2D) and the metabolic syndrome (MetS) is increasing and several studies suggested an involvement of DNA methylation in the development of these metabolic diseases. This study was designed to investigate if differential DNA methylation in blood can function as a biomarker for T2D and/or MetS. METHODS: Pyrosequencing analyses were performed for the candidate genes KCNJ11, PPARγ, PDK4, KCNQ1, SCD1, PDX1, FTO and PEG3 in peripheral blood leukocytes (PBLs) from 25 patients diagnosed with only T2D, 9 patients diagnosed with T2D and MetS and 11 control subjects without any metabolic disorders...
2017: PloS One
https://www.readbyqxmd.com/read/28727728/an-integrative-genomics-approach-identifies-novel-pathways-that-influence-candidaemia-susceptibility
#2
Vasiliki Matzaraki, Mark S Gresnigt, Martin Jaeger, Isis Ricaño-Ponce, Melissa D Johnson, Marije Oosting, Lude Franke, Sebo Withoff, John R Perfect, Leo A B Joosten, Bart Jan Kullberg, Frank L van de Veerdonk, Iris Jonkers, Yang Li, Cisca Wijmenga, Mihai G Netea, Vinod Kumar
Candidaemia is a bloodstream infection caused by Candida species that primarily affects specific groups of at-risk patients. Because only small candidaemia patient cohorts are available, classical genome wide association cannot be used to identify Candida susceptibility genes. Therefore, we have applied an integrative genomics approach to identify novel susceptibility genes and pathways for candidaemia. Candida-induced transcriptome changes in human primary leukocytes were assessed by RNA sequencing. Genetic susceptibility to candidaemia was assessed using the Illumina immunochip platform for genotyping of a cohort of 217 patients...
2017: PloS One
https://www.readbyqxmd.com/read/28727481/leucocyte-and-platelet-rich-fibrin-l-prf-as-a-regenerative-medicine-strategy-for-the-treatment-of-refractory-leg-ulcers-a-prospective-cohort-study
#3
Nelson R Pinto, Matias Ubilla, Yelka Zamora, Verónica Del Rio, David M Dohan Ehrenfest, Marc Quirynen
Chronic wounds (VLU: venous leg ulcer, DFU: diabetic foot ulcer, PU: pressure ulcer, or complex wounds) affect a significant proportion of the population. Despite appropriate standard wound care, such ulcers unfortunately may remain open for months or even years. The use of leukocyte- and platelet-rich fibrin (L-PRF) to cure skin ulcers is a simple and inexpensive method, widely used in some countries but unknown or neglected in most others. This auto-controlled prospective cohort study explored and quantified accurately for the first time the adjunctive benefits of topical applications of L-PRF in the management of such refractory ulcers in a diverse group of patients...
July 20, 2017: Platelets
https://www.readbyqxmd.com/read/28727227/long-term-outcomes-of-simultaneous-heart-and-kidney-transplantation-in-pediatric-recipients
#4
Patricia L Weng, Juan Carlos Alejos, Nancy Halnon, Qiuheng Zhang, Elaine F Reed, Eileen Tsai Chambers
Pediatric sHKTx has become an effective therapy for patients with combined cardiac and renal failure. Often, these patients develop human leukocyte antigen antibodies from their previous allografts and are therefore more difficult to re-transplant. We describe the largest case series of a predominantly sensitized pediatric sHKTx with emphasis on medical management and patient outcomes. Demographics, clinical characteristics, antibody, and biopsy data were retrospectively collected from University of California, Los Angeles database and correlated with short- and long-term patient and allograft outcomes of all sHKTx performed between 2002 and 2015...
July 20, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28727010/effect-of-experimentally-increased-protein-supply-to-postpartum-dairy-cows-on-plasma-protein-synthesis-rumen-tissue-proliferation-and-immune-homeostasis
#5
M Larsen, C M Røntved, P K Theil, M Khatun, C Lauridsen, N B Kristensen
The effect of experimentally increasing the postpartum protein supply on plasma protein synthesis, rumen tissue proliferation, and immune homeostasis was studied using 8 periparturient Holstein cows in a complete randomized design. At calving, cows were assigned to abomasal infusion of water (CTRL) or casein (CAS) in addition to a lactation diet. Casein infusion was gradually decreased from 696 ± 1 g/d at +2 d relative to calving (DRTC) to 212 ± 10 g/d at +29 DRTC to avoid excessive supply. Synthesis rate of plasma proteins was measured at -14, +4, +15, and +29 DRTC by measuring [C]Phe isotopic enrichment in arterial plasma free Phe, total plasma proteins, and albumin after 3, 5, and 7 h of jugular ring[C]Phe infusion...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726666/-pathomorphological-changes-under-latent-mastoiditis
#6
Kh Chitadze, T Jorbenadze, M Adamia
In our opinion it is caused by incomplete awareness of the distribution of pathological process and the character of morphological changes in the patients. In this regard, we studied structural changes in the soft and bone tissue taken from various cavities of the middle ear system. Operating material was formed in paraffin after the fixation and proper processing. We proceed with decalcification of bone tissues in 15-20% nitric acid. We painted 5-6 mm thick peels prepared on the rotating microtome with hematoxylin and eosin...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28725968/microglial-mediated-pdgf-cc-activation-increases-cerebrovascular-permeability-during-ischemic-stroke
#7
Enming Joseph Su, Chunzhang Cao, Linda Fredriksson, Ingrid Nilsson, Christina Stefanitsch, Tamara K Stevenson, Juanjuan Zhao, Margret Ragsdale, Yu-Yo Sun, Manuel Yepes, Chia-Yi Kuan, Ulf Eriksson, Dudley K Strickland, Daniel A Lawrence, Li Zhang
Treatment of acute ischemic stroke with the thrombolytic tissue plasminogen activator (tPA) can significantly improve neurological outcomes; however, thrombolytic therapy is associated with an increased risk of intra-cerebral hemorrhage (ICH). Previously, we demonstrated that during stroke tPA acting on the parenchymal side of the neurovascular unit (NVU) can increase blood-brain barrier (BBB) permeability and ICH through activation of latent platelet-derived growth factor-CC (PDGF-CC) and signaling by the PDGF receptor-α (PDGFRα)...
July 19, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28725958/immune-surveillance-plays-a-role-in-locally-aggressive-giant-cell-lesions-of-bone
#8
REVIEW
Ahmad Al-Sukaini, Francis J Hornicek, Zachary S Peacock, Leonard B Kaban, Soldano Ferrone, Joseph H Schwab
BACKGROUND: Giant cell lesions are locally aggressive intraosseous neoplasms with capacity to metastasize. The role of immune surveillance in the pathophysiology of giant cell lesions is poorly understood, and understanding what role the immune system plays in giant cell lesions may lead to the development of more effective treatment. The aim of this study was to explore the role of immune surveillance in giant cell lesions by examining the expression of the HLA class I and class II antigens and tumor infiltrating lymphocytes...
July 19, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28725005/endothelial-dysfunction-in-severe-preeclampsia-is-mediated-by-soluble-factors-rather-than-extracellular-vesicles
#9
Michelle O'Brien, Dora Baczyk, John C Kingdom
In severe early-onset preeclampsia (sPE) the placenta releases soluble angiogenesis-regulating proteins, trophoblast-derived fragments, and extracellular vesicles (EVs). Their relative importance in disease pathogenesis is not presently understood. We explanted placental villi from healthy and sPE women then separated the media into: total-conditioned, EV-depleted and EV-enriched media. Three fractions were compared for; angiogenic protein secretion by ELISA, angiogenic and inflammation gene mRNA expression and leukocyte adhesion assay...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724995/the-expression-of-formyl-peptide-receptor-1-is-correlated-with-tumor-invasion-of-human-colorectal-cancer
#10
Shu-Qin Li, Ning Su, Ping Gong, Hai-Bo Zhang, Jin Liu, Ding Wang, Yan-Ping Sun, Yan Zhang, Feng Qian, Bo Zhao, Yang Yu, Richard D Ye
Formyl peptide receptors (FPRs) are G protein-coupled chemoattractant receptors expressed mainly in phagocytic leukocytes. High expression of FPRs has also been detected in several cancers but the functions of FPR1 in tumor invasion and metastasis is poorly understood. In this study, we investigated the expression of FPRs in primary human colorectal cancer (CRC) and analyzed the association of FPRs expression with clinicopathological parameters. The levels of FPRs mRNA, especially those of FPR1, were significantly higher in colorectal tumors than in distant normal tissues and adjacent non-tumor tissues...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724755/trim33-tif1-%C3%AE-is-essential-for-macrophage-and-neutrophil-mobilisation-to-developmental-or-inflammatory-cues
#11
Doris Lou Demy, Muriel Tauzin, Mylène Lancino, Véronique le Cabec, Michael Redd, Emi Murayama, Isabelle Maridonneau-Parini, Nikolaus Trede, Philippe Herbomel
Macrophages infiltrate and establish in developing organs from an early stage, often before these have become vascularised. Similarly, leukocytes in general can quickly migrate through tissues to any site of wounding. This unique capacity is rooted in their characteristic amoeboid motility, the genetic basis of which is poorly known. Trim33 (Tif1-γ), a nuclear protein that associates with specific DNA binding transcription factors to modulate gene expression, has been found mainly involved in hematopoiesis and gene regulation by TGF-ß...
July 19, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28724696/is-leukostasis-a-crucial-step-or-epiphenomenon-in-the-pathogenesis-of-diabetic-retinopathy
#12
REVIEW
Anne-Eva van der Wijk, John M Hughes, Ingeborg Klaassen, Cornelis J F Van Noorden, Reinier O Schlingemann
Leukostasis in the retinal microvasculature in animal model studies of diabetes is associated with the development of diabetes-like retinopathy. Therefore, it is generally assumed that adhesion of leukocytes is a central event inciting a chronic, low-grade form of inflammation that causes the vascular abnormalities that are specific for the early stages of diabetic retinopathy (DR), which culminate in diabetic macular edema, proliferative DR, and vision loss in humans. Here, we review the literature critically with respect to leukostasis and assess its pathologic consequences in the human diabetic retina...
July 19, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28724658/a-daily-dose-of-5-mg-folic-acid-for-90-days-is-associated-with-increased-serum-unmetabolized-folic-acid-and-reduced-natural-killer-cell-cytotoxicity-in-healthy-brazilian-adults
#13
Clovis Paniz, Juliano Felix Bertinato, Maylla Rodrigues Lucena, Eduardo De Carli, Patrícia Mendonça da Silva Amorim, Guilherme Wataru Gomes, Cecília Zanin Palchetti, Maria Stella Figueiredo, Christine M Pfeiffer, Zia Fazili, Ralph Green, Elvira Maria Guerra-Shinohara
Background: The effects of high-dose folic acid (FA) supplementation in healthy individuals on blood folate concentrations and immune response are unknown.Objective: The aim of the study was to evaluate the effects of daily consumption of a tablet containing 5 mg FA on serum folate; number and cytotoxicity of natural killer (NK) cells; mRNA expression of dihydrofolate reductase (DHFR), methylenetetrahydrofolate reductase (MTHFR), interferon γ (IFNG), tumor necrosis factor α (TNFA), and interleukin 8 (IL8) genes; and concentrations of serum inflammatory markers...
July 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28724384/deficiency-of-pi3-kinase-catalytic-isoforms-p110%C3%AE-and-p110%C3%AE-in-mice-enhances-the-il-17-g-csf-axis-and-induces-neutrophilia
#14
Kirsten Bucher, Fee Schmitt, Benedikt Mothes, Carolin Blumendeller, Daniel Schäll, Roland Piekorz, Emilio Hirsch, Bernd Nürnberg, Sandra Beer-Hammer
BACKGROUND: Phosphoinositide 3-kinase γ (PI3Kγ) and PI3Kδ are second messenger-generating enzymes with key roles in proliferation, differentiation, survival, and function of leukocytes. Deficiency of the catalytic subunits p110γ and p110δ of PI3Kγ and PI3Kδ in p110γ/δ(-/-) mice leads to defective B- and T-cell homeostasis. Here we examined the role of p110γ and p110δ in the homeostasis of neutrophils by analyzing p110γ(-/-), p110δ(-/-) and p110γ/δ(-/-) mice. METHODS: Neutrophils and T cells in leukocyte suspensions from the bone marrow (BM), blood, spleen and lung were analyzed by flow cytometry...
July 19, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28723682/release-of-danger-associated-molecular-patterns-following-chemotherapy-does-not-induce-immunoparalysis-in-leukemia-patients
#15
Kim Timmermans, Guus P Leijte, Matthijs Kox, Gert Jan Scheffer, Nicole M A Blijlevens, Peter P Pickkers
Chemotherapy may result in the release of danger-associated molecular patterns (DAMPs), which can cause immunoparalysis (deactivation of the immune system). We investigated DAMPs following chemotherapy and their relationship with markers of immunoparalysis in leukemia patients. In 6 patients with acute myeloid leukemia or myelodysplastic syndrome and 12 healthy subjects, DAMPs, cytokines, and markers of immunoparalysis were determined before and during the first week after chemotherapy initiation. In the patients, plasma levels of nuclear DNA (a marker of general DAMP release) were profoundly increased before chemotherapy and further increased 4-6 h afterwards, while the specific DAMP mitochondrial DNA showed only a trend towards increase...
July 20, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28723285/case-244-systemic-amyloidosis-a-complication-of-waldenstr%C3%A3-m-macroglobulinemia
#16
Maja Hrabak-Paar, Marko Kralik
History A 68-year-old man was admitted to the hospital for work-up because of generalized fatigue, anorexia, chronic diarrhea, and weight loss. Laboratory work-up revealed an erythrocyte sedimentation rate of 58 mm/h (reference range, 3-23 mm/h), a hemoglobin level of 14.1 g/dL (reference range, 13.8-17.5 g/dL), a leukocyte count of 8.1 × 10(9)/L (reference range, [3.4-9.7] × 10(9)/L), a platelet count of 223 × 10(9)/L (reference range, [158-424] × 10(9)/L), an alkaline phosphatase level of 85 U/L (1.42 μkat/L) (normal level, <142 U/L [2...
August 2017: Radiology
https://www.readbyqxmd.com/read/28722707/nutrition-inflammation-and-cancer
#17
REVIEW
Laurence Zitvogel, Federico Pietrocola, Guido Kroemer
Quantitative and qualitative aspects of nutrition have a profound effect on leukocytes and thereby affect proinflammatory carcinogenic effects or anticancer immune responses. As a result, nutrition affects the incidence, natural progression and therapeutic response of malignant diseases, both in humans and in preclinical animal models. Here we discuss the molecular mechanisms through which alimentary cues modulate metabolic, microbial and neuroendocrine circuitries and thus affect the probability of developing premalignant lesions that progress to clinically manifested disease and the response to therapeutic intervention...
July 19, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28722240/an-mri-hyperintense-acute-reperfusion-marker-is-related-to-elevated-peripheral-monocyte-count-in-acute-ischemic-stroke
#18
Zurab Nadareishvili, Marie Luby, Richard Leigh, Jignesh Shah, John K Lynch, Amie W Hsia, Richard T Benson, Lawrence L Latour
BACKGROUND AND PURPOSE: Blood-brain barrier (BBB) disruption detected on magnetic resonance imaging (MRI) in acute ischemic stroke as a hyperintense acute reperfusion marker (HARM) is associated with upregulation of matrix metalloproteinase-9 (MMP-9). Although activated leukocytes, including monocytes, are the main source of MMPs, limited data exist to support relationship between leukocyte activation and BBB disruption in patients with acute ischemic stroke. The goal of this study is to investigate the relationship between neutrophils, lymphocytes, and monocytes with BBB disruption detected as HARM (+) in patients with acute ischemic stroke...
July 19, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28722144/mechanisms-involved-in-hypersensitivity-reactions-to-polysulfone-hemodialysis-membranes
#19
Aranzazu Rodríguez-Sanz, Rafael Sánchez-Villanueva, Javier Domínguez-Ortega, Ana-María Fiandor, María-Paz Ruiz, Filomena Trocoli, Rafael Díaz-Tejeiro, Carlos Cadenillas, Elena González, Virginia Martínez, Margarita López-Trascasa, Santiago Quirce, Rafael Selgas, Teresa Bellón
Several cases of patients with anaphylactic or systemic hypersensitivity reactions to polysulfone (PS) hemodialysis (HD) membranes and tolerance to cellulose triacetate (CTA) membranes have recently been reported. To investigate the mechanisms involved in PS hypersensitivity, basophil, T cell, and complement activation were analyzed in acute-phase samples from two patients with systemic reactions to PS-based membranes. Basophil and T cell activation, as well as higher serum tryptase levels were detected in acute-phase samples compared with basal levels...
July 19, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28721485/non-additive-and-epistatic-effects-of-hla-polymorphisms-contributing-to-risk-of-adult-glioma
#20
Chenan Zhang, Adam J de Smith, Ivan V Smirnov, John K Wiencke, Joseph L Wiemels, John S Witte, Kyle M Walsh
Although genome-wide association studies have identified several susceptibility loci for adult glioma, little is known regarding the potential contribution of genetic variation in the human leukocyte antigen (HLA) region to glioma risk. HLA associations have been reported for various malignancies, with many studies investigating selected candidate HLA polymorphisms. However, no systematic analysis has been conducted in glioma patients, and no investigation into potential non-additive effects has been described...
July 18, 2017: Journal of Neuro-oncology
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