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https://www.readbyqxmd.com/read/28191564/correlation-of-the-structural-information-obtained-for-europium-chelate-ensembles-from-gas-phase-photoluminescence-and-ion-mobility-spectroscopy-with-density-functional-computations-and-ligand-field-theory
#1
Jean-François Greisch, Jiří Chmela, Michael E Harding, Dirk Wunderlich, Bernhard Schäfer, Mario Ruben, Wim Klopper, Detlef Schooss, Manfred M Kappes
We report a combined investigation of europium(iii)9-oxo-phenalen-1-one (PLN) coordination complexes, [Eu(PLN)4AE](+) with AE = Mg, Ca, and Sr, using gas-phase photoluminescence, trapped ion-mobility spectrometry and density-functional computations. In order to sort out the structural impact of the alkali earth dications on the photoluminescence spectra, the experimental data are compared to the predicted ligand-field splittings as well as to the collision cross-sections for different isomers of [Eu(PLN)4AE](+)...
February 13, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28182833/comparative-effectiveness-of-mycophenolate-mofetil-for-the-treatment-of-childhood-onset-proliferative-lupus-nephritis
#2
Simon Y Tian, Earl D Silverman, Eleanor Pullenayegum, Patrick E Brown, Joseph Beyene, Brian M Feldman
OBJECTIVES: Although childhood-onset proliferative lupus nephritis (cPLN) leads to significant morbidity and mortality, there is no trial evidence to support the treatment effectiveness of any therapy for cPLN. Marginal structural models (MSMs) enable us to estimate treatment effectiveness using observational data while accounting for confounding by indication. METHODS: We used prospectively collected data to examine the effect of mycophenolate mofetil (MMF), compared to the use of other therapies, on the long-term outcome of our cPLN cohort (age at onset of PLN < 18 years)...
February 9, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28161495/should-the-presence-of-metastatic-para-aortic-lymph-nodes-in-locally-advanced-cervical-cancer-lead-to-more-aggressive-treatment-strategies
#3
Virginia Benito, Sonia Carballo, Patricia Silva, Miriam Esparza, Octavio Arencibia, Mario Federico, Miguel Andújar, Marta Mori, Norberto Medina, Amina Lubrano
OBJECTIVE: To evaluate risk factors in patients with locally advanced cervical cancer (LACC) undergoing pretherapeutic laparoscopic paraaortic lymphadenectomy (LPL), as well as the progression-free and overall survival rates specifically in the subgroup of patients with metastatic paraaortic lymph nodes (PLN). DESIGN: Retrospective study conducted on demographic data, pathological and surgical findings, complications and disease-status, recorded for LACC patients undergoing LPL during the period 2009-2015...
February 1, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28127834/outcomes-of-uterine-cervical-cancer-patients-with-pelvic-lymph-node-metastases-after-radiotherapy-without-boost-irradiation-of-metastases
#4
Eriko Yoshizawa, Keiichiro Koiwai, Hironobu Ina, Ayumu Fukazawa, Katsuya Sakai, Takesumi Ozawa, Hirohide Matsushita, Masumi Kadoya
AIM: The aim of this study was to evaluate the outcomes of uterine cervical cancer patients with pelvic lymph node (PLN) metastases after radiotherapy without boost irradiation of the metastases and to clarify the necessity of the boost irradiation of metastatic lesions. METHODS: Thirty-two patients with uterine cervical cancer metastasizing only to the PLN were treated with definitive radiotherapy without boost irradiation of the metastases between 2008 and 2012 at our institution and were selected for this study...
January 26, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28122728/absence-of-suppressor-of-cytokine-signaling-2-turns-cardiomyocytes-unresponsive-to-lif-dependent-increase-in-ca2-levels
#5
Cibele Rocha-Resende, Itamar Couto Guedes de Jesus, Danilo Roman-Campos, Artur S Miranda, Fabiana Alves, Rodrigo Ribeiro Resende, Jader Dos Santos Cruz, Fabiana Simão Machado, Silvia Guatimosim
Little is known regarding the role of the Suppressor of Cytokine Signaling (SOCS) in the control of cytokine signaling in cardiomyocytes. We investigated the consequences of SOCS2 ablation for Leukemia Inhibitory Factor (LIF)-induced enhancement of intracellular Ca(2+) ([Ca(2+)]i) transient by performing experiments with cardiomyocytes from SOCS2-knockout (ko) mice. Similar levels of SOCS3 transcripts were seen in cardiomyocytes from wild-type and SOCS2-ko, while SOCS1 mRNA was reduced in SOCS2-ko. Immunoprecipitation experiments showed increased SOCS3 association with gp130 receptor in SOCS2-ko myocytes...
January 25, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28118521/treatment-of-tnf-tg-mice-with-anti-tnf-restores-lymphatic-contraction-repairs-lymphatic-vessels-and-may-increase-monocyte-macrophage-egress
#6
Echoe M Bouta, Igor Kuzin, Karen de Mesy Bentley, Ronald W Wood, Homaira Rahimi, Rui-Cheng Ji, Christopher T Ritchlin, Andrea Bottaro, Lianping Xing Bm, And Edward M Schwarz
BACKGROUND: Recent studies have demonstrated that there is an inverse relationship between lymphatic egress and inflammatory arthritis in affected joints. As a model, TNF-transgenic (TNF-Tg) mice develop advanced arthritis following draining lymph node collapse, and loss of lymphatic contractions downstream of inflamed joints. As it is unknown if these lymphatic deficits are reversible, we tested the hypothesis that anti-TNF therapy reduces advanced inflammatory-erosive arthritis, associated with restoration of lymphatic contractions, repair of damaged lymphatic vessels, and evidence of increased monocyte egress...
January 24, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28102477/potential-new-mechanisms-of-pro-arrhythmia-in-arrhythmogenic-cardiomyopathy-focus-on-calcium-sensitive-pathways
#7
REVIEW
C J M van Opbergen, M Delmar, T A B van Veen
Arrhythmogenic cardiomyopathy, or its most well-known subform arrhythmogenic right ventricular cardiomyopathy (ARVC), is a cardiac disease mainly characterised by a gradual replacement of the myocardial mass by fibrous and fatty tissue, leading to dilatation of the ventricular wall, arrhythmias and progression towards heart failure. ARVC is commonly regarded as a disease of the intercalated disk in which mutations in desmosomal proteins are an important causative factor. Interestingly, the Dutch founder mutation PLN R14Del has been identified to play an additional, and major, role in ARVC patients within the Netherlands...
January 19, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28097316/evaluation-of-structural-progression-in-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy
#8
Thomas P Mast, Cynthia A James, Hugh Calkins, Arco J Teske, Crystal Tichnell, Brittney Murray, Peter Loh, Stuart D Russell, Birgitta K Velthuis, Daniel P Judge, Dennis Dooijes, Ryan J Tedford, Jeroen F van der Heijden, Harikrishna Tandri, Richard N Hauer, Theodore P Abraham, Pieter A Doevendans, Anneline S J M Te Riele, Maarten J Cramer
Importance: Considerable research has described the arrhythmic course of arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C). However, objective data characterizing structural progression, such as ventricular enlargement and cardiac dysfunction, in ARVD/C are relatively scarce. Objectives: To define the extent of structural progression, identify determinants of structural progression, and determine the association between structural progression and electrocardiographic (ECG) changes in patients with ARVD/C...
January 11, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28081340/importance-of-sonographic-paratracheal-lymph-node-evaluationin-early-autoimmune-thyroiditis
#9
Tuğrul Örmeci, Mukaddes Çolakoğulları, İsrafil Orhan, Bayram Ufuk Şakul
BACKGROUND/AIM: To review the sonographic views of paratracheal lymph nodes (PLNs) in the diagnosis and during different stages of autoimmune thyroiditis. MATERIALS AND METHODS: Features of the PLNs (left and right), thyroid sonography, and laboratory data were investigated in 126 cases. Patients were divided into three groups by using thyroid sonographic criteria in the literature (group 1: control, group 2: early-stage/indeterminate, group 3: definite thyroiditis)...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28047846/su-f-t-534-using-daily-images-to-verify-dosimetric-advantage-of-dual-isocentric-technique-for-high-risk-prostate-cancer-treated-with-pelvic-lymph-node
#10
T Cui, Q Shang, W Li, A Vassil, P Xia
PURPOSE: To evaluate a dual-isocentric technique to compensate for the daily independent movements of prostate and pelvic lymph nodes (PLN) of high-risk prostate cancer patients. METHODS: Three patients, who received 78 Gy to the prostate, 66 Gy to the seminal vesicle (SV), and 50.4 Gy to the PLN in 39 fractions under CT-on-rail (CTOR) imaging guidance, were retrospectively selected. Each patient was planned with volumetric modulated arc therapy (VMAT) techniques using (1) single isocenter with a 6 mm margin except 4 mm posteriorly (6/4 mm), to the prostate-CTV and a uniform 5 mm margin to the PLN-CTV, and (2) two isocenters, located at the centroids of the prostate or the PLN, with a 5/3 mm margin to the prostate-CTV and a 5 mm uniform margin to the PLN-CTV...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047620/th-cd-207a-12-impacts-of-inter-and-intra-fractional-organ-motion-for-high-risk-prostate-cancer-stereotactic-body-radiation-therapy
#11
N Hassan Rezaeian, Y Chi, Y Zhou, Z Tian, S Jiang, R Hannan, X Jia
PURPOSE: We are conducting a clinical trial on stereotactic body radiation therapy (SBRT) for high-risk prostate cancer. Doses to three targets, prostate, intra-prostatic lesion, and pelvic lymph node (PLN) region, are escalated to three different levels via simultaneous integrated boost technique. Inter-/intra-fractional organ motions deteriorate planned dose distribution. This study aims at developing a dose reconstruction system to comprehensively understand the impacts of organ motion in our clinical trial...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28039202/caveolae-specific-activation-loop-between-camkii-and-l-type-ca2-channel-aggravates-cardiac-hypertrophy-in-%C3%AE-1-adrenergic-stimulation
#12
Kota Tonegawa, Wataru Otsuka, Shohei Kumagai, Sachi Matsunami, Nao Hayamizu, Shota Tanaka, Kazumasa Moriwaki, Masanori Obana, Makiko Maeda, Michio Asahi, Hiroshi Kiyonari, Yasushi Fujio, Hiroyuki Nakayama
AIMS: Activation of CaMKII induces a myriad of biological processes and plays dominant roles in cardiac hypertrophy. Caveolar microdomain contains many CaMKII targets, including L-type Ca2+ channel (LTCC) complex, and serves as a signalling platform. The location of CaMKII activation is thought to be critical, however, the roles of CaMKII in caveolae are still elusive due to lack of methodology for the assessment of caveolae-specific activation. Our aim was to develop a novel tool for the specific analysis of CaMKII activation in caveolae, and to determine the functional role of caveolar CaMKII in cardiac hypertrophy...
December 30, 2016: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/27992596/phospholamban-ablation-using-crispr-cas9-system-improves-mortality-in-a-murine-heart-failure-model
#13
Manami Kaneko, Kentarou Hashikami, Satoshi Yamamoto, Hirokazu Matsumoto, Tomoyuki Nishimoto
Sarcoplasmic reticulum Ca2+-ATPase 2a (SERCA2a) and its inhibitory protein called phospholamban (PLN) are pivotal for Ca2+ handling in cardiomyocyte and are known that their expression level and activity were changed in the heart failure patients. To examine whether PLN inhibition can improve survival rate as well as cardiac function in heart failure, we performed PLN ablation in calsequestrin overexpressing (CSQ-Tg) mice, a severe heart failure model, using clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated (Cas) system...
2016: PloS One
https://www.readbyqxmd.com/read/27988371/fine-mapping-of-qt-regions-in-global-populations-refines-previously-identified-qt-loci-and-identifies-signals-unique-to-african-and-hispanic-descent-populations
#14
Christy L Avery, Christina L Wassel, Melissa A Richard, Heather M Highland, Stephanie Bien, Niha Zubair, Elsayed Z Soliman, Myriam Fornage, Suzette J Bielinski, Ran Tao, Amanda A Seyerle, Sanjiv J Shah, Donald M Lloyd-Jones, Steven Buyske, Jerome I Rotter, Wendy S Post, Stephen S Rich, Lucia A Hindorff, Janina M Jeff, Ralph V Shohet, Nona Sotoodehnia, Dan Yu Lin, Eric A Whitsel, Ulrike Peters, Christopher A Haiman, Dana C Crawford, Charles Kooperberg, Kari E North
BACKGROUND: The electrocardiographically measured QT interval (QT) is heritable and its prolongation is an established risk factor for several cardiovascular DISEASES: Yet, most QT genetic studies have been performed in European ancestral populations, possibly reducing their global relevance. OBJECTIVE: To leverage diversity and improve biologic insight, we fine-mapped 16 of the 35 previously identified QT loci (46%) in populations of African American (n=12,410) and Hispanic/Latino (n=14,837) ancestry...
December 14, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27973629/design-of-nanocarriers-for-nanoscale-drug-delivery-to-enhance-cancer-treatment-using-hybrid-polymer-and-lipid-building-blocks
#15
REVIEW
Rui Xue Zhang, Taksim Ahmed, Lily Yi Li, Jason Li, Azhar Z Abbasi, Xiao Yu Wu
Polymer-lipid hybrid nanoparticles (PLN) are an emerging nanocarrier platform made from building blocks of polymers and lipids. PLN integrate the advantages of biomimetic lipid-based nanoparticles (i.e. solid lipid nanoparticles and liposomes) and biocompatible polymeric nanoparticles. PLN are constructed from diverse polymers and lipids and their numerous combinations, which imparts PLN with great versatility for delivering drugs of various properties to their nanoscale targets. PLN can be classified into two types based on their hybrid nanoscopic structure and assembly methods: Type-I monolithic matrix and Type-II core-shell systems...
December 14, 2016: Nanoscale
https://www.readbyqxmd.com/read/27967303/immune-responses-induced-by-diclofenac-or-carbamazepine-in-an-oral-exposure-model-using-tnp-ficoll-as-reporter-antigen
#16
Lydia Kwast, Tetsuo Aida, Daniëlle Fiechter, Laura Kruijssen, Rob Bleumink, Louis Boon, Irene Ludwig, Raymond Pieters
Immune-mediated drug hypersensitivity reactions (IDHR) may result from immuno-sensitization to a drug-induced neo-antigen. They rarely occur in patients and are usually not predicted preclinically using standard toxicity studies. To assess the potential of a drug to induce T-cell sensitization, trinitrophenyl (TNP)-Ficoll was used here as a bystander antigen in animal experiments. TNP-Ficoll will only elicit TNP-specific IgG antibodies in the presence of non-cognate T-cell help. Therefore, the presence of TNP-specific IgG antibodies after co-injection of drug and TNP-Ficoll was indicative of T-cell sensitization potential...
November 2016: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/27965107/molecular-evidence-on-the-protective-effect-of-ellagic-acid-on-phosalone-induced-senescence-in-rat-embryonic-fibroblast-cells
#17
Maryam Baeeri, Saeideh Momtaz, Mona Navaei-Nigjeh, Kamal Niaz, Mahban Rahimifard, Seyedeh Farnaz Ghasemi-Niri, Nima Sanadgol, Mahshid Hodjat, Mohammad Sharifzadeh, Mohammad Abdollahi
Salient evidence testifies the link between organophosphorus (OPs) exposure and the formation of free radical oxidants; and it is well accepted that free radicals are one of the basic concerns of senescence. To show the oxidative features of phosalone (PLN) as a key member of OPs, to induce senescence in rat embryonic fibroblast (REF) cells and to demonstrate the beneficial effects of the known antioxidant ellagic acid (EA) in diminishing the PLN-induced toxic effects, the levels of cell viability, oxidative stress markers, inflammatory cytokines, telomerase activity, and the expression of the genes related to senescence were investigated...
February 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27942583/tissue-distribution-and-clonal-diversity-of-the-t-and-b-cell-repertoire-in-type-1-diabetes
#18
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/27936517/-novel-biomarkers-for-the-assessment-of-pediatric-systemic-lupus-erythematosus-nephritis
#19
Artemis Koutsonikoli, Maria Trachana, Evangelia Farmaki, Vasiliki Tzimouli, Polyxeni Pratsidou-Gertsi, Nikoleta Printza, Alexandros Garyphallos, Vasiliki Galanopoulou, Florence Kanakoudi-Tsakalidou, Fotios Papachristou
OBJECTIVES: The discovery of serum biomarkers specific for pediatric Lupus Nephritis (pLN) will facilitate the non-invasive diagnosis, follow-up and more appropriate use of treatment. The aim of this study was to explore the role of serum High-Mobility-Group-Box-1 (HMGB1) protein, antibodies against nucleosomes (anti-NCS), complement factor C1q (anti-C1q) and glomerular basement membrane (anti-GBM) in pLN. METHODS: Serum samples of 42 patients with pediatric Systemic Lupus Erythematosus (pSLE) (22 with pLN and 20 without renal involvement), fifteen patients with other autoimmune nephritis (AN) and 26 healthy controls (HCs) were examined using ELISA...
December 9, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/27936050/gene-targeted-mice-with-the-human-troponin-t-r141w-mutation-develop-dilated-cardiomyopathy-with-calcium-desensitization
#20
Mohun Ramratnam, Guy Salama, Ravi K Sharma, David Wen Rui Wang, Stephen H Smith, Sanjay K Banerjee, Xueyin N Huang, Lindsey M Gifford, Michele L Pruce, Bethann E Gabris, Samir Saba, Sanjeev G Shroff, Ferhaan Ahmad
Most studies of the mechanisms leading to hereditary dilated cardiomyopathy (DCM) have been performed in reconstituted in vitro systems. Genetically engineered murine models offer the opportunity to dissect these mechanisms in vivo. We generated a gene-targeted knock-in murine model of the autosomal dominant Arg141Trp (R141W) mutation in Tnnt2, which was first described in a human family with DCM. Mice heterozygous for the mutation (Tnnt2R141W/+) recapitulated the human phenotype, developing left ventricular dilation and reduced contractility...
2016: PloS One
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