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https://www.readbyqxmd.com/read/27931534/advances-in-clinical-immunology-in-2015
#1
REVIEW
Javier Chinen, Luigi D Notarangelo, William T Shearer
Advances in clinical immunology in the past year included the report of practice parameters for the diagnosis and management of primary immunodeficiencies to guide the clinician in the approach to these relatively uncommon disorders. We have learned of new gene defects causing immunodeficiency and of new phenotypes expanding the spectrum of conditions caused by genetic mutations such as a specific regulator of telomere elongation (RTEL1) mutation causing isolated natural killer cell deficiency and mutations in ras-associated RAB (RAB27) resulting in immunodeficiency without albinism...
December 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27924175/serum-free-light-chain-assay-and-%C3%AE%C2%BA-%C3%AE-ratio-performance-in-patients-with-monoclonal-gammopathy-high-false-negative-rate-for-%C3%AE%C2%BA-%C3%AE-ratio
#2
Gurmukh Singh
BACKGROUND: Serum free light chain assay (SFLCA) and κ/λ ratio, and protein electrophoretic methods are used in the diagnosis and monitoring of monoclonal gammopathies. METHODS: Results for serum free light chains, serum and urine protein electrophoreses and immunofixation electrophoreses in 468 patients with a diagnosis of monoclonal gammopathy were compared. The results of the two methods were graded as concordant, non-concordant or discordant with the established diagnoses to assess the relative performance of the methods...
January 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27921220/increased-cell-free-mitochondrial-dna-is-a-marker-of-ongoing-inflammation-and-better-neurocognitive-function-in-virologically-suppressed-hiv-infected-individuals
#3
Josué Pérez-Santiago, Michelli F De Oliveira, Susanna R Var, Tyler R C Day, Steven P Woods, Sara Gianella, Sanjay R Mehta
Cell-free mitochondrial DNA (mtDNA) is a highly immunogenic molecule that is associated with several inflammatory conditions and with neurocognitive impairment during untreated HIV infection. Here, we investigate how cell-free mtDNA in cerebrospinal fluid (CSF) is associated with inflammation, neuronal damage, and neurocognitive functioning in the context of long-term suppressive antiretroviral therapy (ART). We quantified the levels of cell-free mtDNA in the CSF from 41 HIV-infected individuals with completely suppressed HIV RNA levels in blood plasma (<50 copies/mL) by droplet digital PCR...
December 5, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27917369/management-of-multiple-myeloma-and-usage-of-bortezomib-perspective-from-india-and-ukraine
#4
Amit Garg, Mykhaylo Morgunskyy, Yogesh Belagali, Namita Gupta, Shyam Prasad Akku
Novel treatment strategies have remarkably improved the multiple myeloma (MM) patients' survival, with associated increased costs. A joint panel meet of international experts from India and Ukraine was held in New Delhi on May 19, 2016 focusing on MM management, bortezomib role, unmet medical needs, and current challenges. The health-care system for oncology in India is majorly private vs. government-based in Ukraine. In India, electrophoresis, serum-free light chain assays, bone marrow tests, and X-rays are available modes of diagnosis...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27909220/role-of-serum-free-light-chain-assay-in-the-detection-of-early-relapse-and-prediction-of-prognosis-after-relapse-in-multiple-myeloma-patients-treated-upfront-with-novel-agents
#5
Paola Tacchetti, Annalisa Pezzi, Elena Zamagni, Lucia Pantani, Serena Rocchi, Beatrice Anna Zannetti, Katia Mancuso, Ilaria Rizzello, Michele Cavo
No abstract text is available yet for this article.
December 1, 2016: Haematologica
https://www.readbyqxmd.com/read/27899552/prognostic-value-of-free-light-chains-lambda-and-kappa-in-early-multiple-sclerosis
#6
Margarete M Voortman, Tatjana Stojakovic, Lukas Pirpamer, Margit Jehna, Christian Langkammer, Hubert Scharnagl, Markus Reindl, Stefan Ropele, Thomas Seifert-Held, Juan-Jose Archelos, Siegrid Fuchs, Christian Enzinger, Franz Fazekas, Michael Khalil
BACKGROUND: Cerebrospinal fluid (CSF) immunoglobulin free light chains (FLC) have been suggested as quantitative alternative to oligoclonal bands (OCB) in the diagnosis of multiple sclerosis (MS). However, little is known on their role in predicting clinical and paraclinical disease progression, particularly in early stages. OBJECTIVE: To assess the prognostic value of FLC in OCB-positive patients with clinically isolated syndrome (CIS) suggestive of MS and early MS...
November 29, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/27896790/free-volume-structure-of-acrylic-type-dental-nanocomposites-tested-with-annihilating-positrons
#7
Olha Shpotyuk, Adam Ingram, Oleh Shpotyuk
Positron annihilation spectroscopy in lifetime measuring mode exploring conventional fast-fast coincidence ORTEC system is employed to characterize free volume structure of commercially available acrylic-type dental restorative composite Charisma® (Heraeus Kulzer GmbH, Germany). The measured lifetime spectra for uncured and light-cured composites are reconstructed from unconstrained x3-term fitting and semi-empirical model exploring x3-x2-coupling decomposition algorithm. The governing channel of positron annihilation in the composites studied is ascribed to mixed positron-Ps trapping, where Ps decaying in the third component is caused entirely by input from free-volume holes in polymer matrix, while the second component is defined by free positron trapping in interfacial free-volume holes between filler nanoparticles and surrounded polymer matrix...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27893836/prognostic-value-of-serum-free-light-chains-measurements-in-multiple-myeloma-patients
#8
José Luis García de Veas Silva, Carmen Bermudo Guitarte, Paloma Menéndez Valladares, Johanna Carolina Rojas Noboa, Krysta Kestler, Rafael Duro Millán
BACKGROUND: The outcome for patients with Multiple Myeloma (MM) is highly variable, therefore, the existence of robust and easy to determine prognostic markers is extremely important for an efficient management of these patients. Presently, there is a debate about the role of the serum free light chains (sFLC) in the prognosis of MM patients both at diagnosis and after treatment. The aim of this study is to evaluate in a cohort of newly diagnosed MM patients from the Southern area of Spain, the prognostic value of sFLC both at baseline and after treatment...
2016: PloS One
https://www.readbyqxmd.com/read/27891669/a-molecular-dynamics-study-of-the-binary-complexes-of-app-jip1-and-the-cargo-binding-domain-of-klc
#9
Cooper A Taylor, Bill R Miller, Soleil S Shah, Carol A Parish
Mutations in the amyloid precursor protein (APP) are responsible for the formation of amyloid-β peptides. These peptides play a role in Alzheimer's and other dementia-related diseases. The cargo binding domain of the kinesin-1 light chain motor protein (KLC1) may be responsible for transporting APP either directly or via interaction with C-jun N-terminal kinase-interacting protein 1 (JIP1). However, to date there has been no direct experimental or computational assessment of such binding at the atomistic level...
November 7, 2016: Proteins
https://www.readbyqxmd.com/read/27890596/monoacyl-phosphatidylcholine-inhibits-the-formation-of-lipid-multilamellar-structures-during-in-vitro-lipolysis-of-self-emulsifying-drug-delivery-systems
#10
Thuy Tran, Scheyla D V S Siqueira, Heinz Amenitsch, Thomas Rades, Anette Müllertz
The colloidal structures formed during lipolysis of self-emulsifying drug delivery systems (SEDDS) might affect the solubilisation and possibly the absorption of drugs. The aim of the current study is to elucidate the structures formed during the in vitro lipolysis of four SEDDS containing medium-chain glycerides and caprylocaproyl polyoxyl-8 glycerides (Labrasol), with or without monoacyl phosphatidylcholine (MAPC). In situ synchrotron small-angle X-ray scattering (SAXS) was combined with ex situ cryogenic transmission electron microscopy (cryo-TEM) and dynamic light scattering (DLS) to elucidate the generated structures...
November 24, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27888009/a-novel-approach-for-the-chromatographic-purification-and-peptide-mass-fingerprinting-of-urinary-free-light-chains
#11
Bhupesh C Mali, Shamkant B Badgujar, Kunal K Shukla, Paresh B Bhanushali
We describe a chromatographic approach for the purification of urinary free light chains (FLCs) viz., lambda free light chains (λ-FLCs) and kappa free light chains (κ-FLCs). Isolated urinary FLCs were analyzed by SDS-PAGE, immunoblotting and mass spectrometry (MS). The relative molecular masses of λ-FLC and κ-FLC are 22,933.397 and 23,544.336Da respectively. Moreover, dimer forms of each FLC were also detected in mass spectrum which corresponds to 45,737.747 and 47,348.028Da respectively for λ-FLCs and κ-FLCs...
November 22, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27886307/a-simple-guiding-principle-for-the-temperature-dependence-of-the-solubility-of-light-gases-in-imidazolium-based-ionic-liquids-derived-from-molecular-simulations
#12
Daniela Kerlé, Majid Namayandeh Jorabchi, Ralf Ludwig, Sebastian Wohlrab, Dietmar Paschek
We have determined the temperature dependence of the solvation behavior of a large collection of important light gases in imidazolium-based ionic liquids with the help of extensive molecular dynamics simulations. The motivation of our study is to unravel common features of the temperature dependent solvation under well controlled conditions, and to provide a guidance for cases, where experimental data from different sources disagree significantly. The solubility of molecular hydrogen, oxygen, nitrogen, methane, krypton, argon, neon and carbon dioxide in the imidazolium based ionic liquids of type 1-n-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Cnmim][NTf2]) with varying alkyl side chain lengths n = 2, 4, 6, 8 is computed for a temperature range between 300 K and 500 K at 1 bar...
November 25, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27884120/removal-of-free-light-chains-in-hemodialysis-patients-without-multiple-myeloma-a-crossover-comparison-of-three-different-dialyzers
#13
Gabriele Donati, Maria Ilaria Moretti, Olga Baraldi, Alessandra Spazzoli, Irene Capelli, Giorgia Comai, Antonio Marchetti, Maria Sarma, Rita Mancini, Gaetano La Manna
BACKGROUND: Immunoglobulin light chains are classified as middle molecule uremic toxins able to interact with B lymphocyte membranes leading to the activation of transmembrane signaling. The ensuing impairment of neutrophil function can contribute to the chronic inflammation state of uremic patients, and the increased risk of bacterial infections or vascular calcifications. The aim of this crossover observational study was to assess the difference in free light chain removal by three different hemodialysis filters in patients not affected by multiple myeloma...
November 25, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27879147/pre-transplantation-novel-agent-induction-predicts-progression-free-survival-for-patients-with-immunoglobulin-light-chain-amyloidosis-undergoing-high-dose-melphalan-and-autologous-stem-cell-transplantation
#14
Andrew J Cowan, Zandra K Klippel, Philip A Stevenson, Teresa S Hyun, Sherilyn Tuazon, Pamela S Becker, Damian J Green, Leona A Holmberg, David G Coffey, Ajay K Gopal, Edward N Libby
INTRODUCTION: High-dose melphalan and autologous stem cell transplantation (HDM/SCT) is an effective treatment modality for immunoglobulin light-chain (AL) amyloidosis; however, its application remains restricted to patients with good performance status and limited organ involvement. In recent years, the paradigm for AL amyloidosis has changed with the introduction of novel agents such as immunomodulatory drugs (IMiDs) and proteasome inhibitors (PIs). We hypothesized that use of novel agent induction regimens has improved outcomes for patients with AL amyloidosis undergoing HDM/SCT at our center...
December 2016: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/27869798/gluten-induced-symptoms-in-diarrhea-predominant-irritable-bowel-syndrome-are-associated-with-increased-myosin-light-chain-kinase-activity-and-claudin-15-expression
#15
Richard L Wu, Maria I Vazquez-Roque, Paula Carlson, Duane Burton, Madhusudan Grover, Michael Camilleri, Jerrold R Turner
The mechanisms underlying diarrhea-predominant irritable bowel syndrome (IBS-D) are poorly understood, but increased intestinal permeability is thought to contribute to symptoms. A recent clinical trial of gluten-free diet (GFD) demonstrated symptomatic improvement, relative to gluten-containing diet (GCD), which was associated with reduced intestinal permeability in non-celiac disease IBS-D patients. The aim of this study was to characterize intestinal epithelial tight junction composition in IBS-D before and after dietary gluten challenge...
November 21, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27862330/predictors-of-inferior-clinical-outcome-in-patients-with-standard-risk-multiple-myeloma
#16
Talha Badar, Samer Srour, Qaiser Bashir, Nina Shah, Gheath Al-Atrash, Chitra Hosing, Uday Popat, Yago Nieto, Robert Z Orlowski, Richard Champlin, Muzaffar H Qazilbash
INTRODUCTION: Outcome of patients with standard-risk (SR) multiple myeloma (MM) has improved; however, subsets of patients do worse than expected. We sought to identify the factors associated with inferior outcome. METHODS: We evaluated 51 patients with SR MM that received upfront autologous hematopoietic stem cell transplantation (auto-HCT) after induction and had a progression-free survival (PFS) of ≤18 months. RESULTS: The median age of patients was 61 yr...
November 9, 2016: European Journal of Haematology
https://www.readbyqxmd.com/read/27846293/assessment-of-intrathecal-free-light-chain-synthesis-comparison-of-different-quantitative-methods-with-the-detection-of-oligoclonal-free-light-chains-by-isoelectric-focusing-and-affinity-mediated-immunoblotting
#17
David Zeman, Pavlína Kušnierová, Zdeněk Švagera, František Všianský, Monika Byrtusová, Pavel Hradílek, Barbora Kurková, Olga Zapletalová, Vladimír Bartoš
OBJECTIVES: We aimed to compare various methods for free light chain (fLC) quantitation in cerebrospinal fluid (CSF) and serum and to determine whether quantitative CSF measurements could reliably predict intrathecal fLC synthesis. In addition, we wished to determine the relationship between free kappa and free lambda light chain concentrations in CSF and serum in various disease groups. METHODS: We analysed 166 paired CSF and serum samples by at least one of the following methods: turbidimetry (Freelite™, SPAPLUS), nephelometry (N Latex FLC™, BN ProSpec), and two different (commercially available and in-house developed) sandwich ELISAs...
2016: PloS One
https://www.readbyqxmd.com/read/27825470/monoclonal-igm-related-al-amyloidosis
#18
REVIEW
Paolo Milani, Giampaolo Merlini
Monoclonal immunoglobulin M (IgM)-related light chain (AL) amyloidosis, which accounts for 5%-7% of all AL amyloidosis cases, is a distinct clinical entity that poses specific challenges to clinicians. Several studies reported that although there is a substantial overlap, the pattern of organ involvement is peculiar, with higher frequencies of lung, lymph nodes, and peripheral nervous system involvement. A recent collaborative study from three European referral centers, defined that cardiac involvement, advanced Mayo disease stage, neuropathic, and liver involvement were independent factors that had impact on survival in IgM-AL amyloidosis patients...
June 2016: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/27822103/the-danish-national-multiple-myeloma-registry
#19
REVIEW
Peter Gimsing, Morten O Holmström, Tobias Wirenfelt Klausen, Niels Frost Andersen, Henrik Gregersen, Robert Schou Pedersen, Torben Plesner, Per Trøllund Pedersen, Mikael Frederiksen, Ulf Frølund, Carsten Helleberg, Annette Vangsted, Peter de Nully Brown, Niels Abildgaard
AIM: The Danish National Multiple Myeloma Registry (DMMR) is a population-based clinical quality database established in January 2005. The primary aim of the database is to ensure that diagnosis and treatment of plasma cell dyscrasia are of uniform quality throughout the country. Another aim is to support research. Patients are registered with their unique Danish personal identification number, and the combined use of DMMR, other Danish National registries, and the Danish National Cancer Biobank offers a unique platform for population-based translational research...
2016: Clinical Epidemiology
https://www.readbyqxmd.com/read/27816953/igd-%C3%AE-myeloma-with-extensive-free-light-chain-excretion-a-diagnostic-pitfall-in-the-identification-of-monoclonal-gammopathies
#20
Christoph Robier, Maria Piribauer, Christine Beham-Schmid, Kristina Aubell, Manfred Neubauer
No abstract text is available yet for this article.
November 7, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
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