keyword
MENU ▼
Read by QxMD icon Read
search

Free light chains

keyword
https://www.readbyqxmd.com/read/28087006/new-insights-into-the-pathogenesis-and-treatment-of-heavy-chain-deposition-disease
#1
Jonathan J Hogan, Glen S Markowitz
Heavy chain deposition disease is defined by the presence of tissue deposits of truncated monoclonal Ig heavy chains, usually associated with an underlying plasma cell clone. In this issue of Kidney International, Bridoux et al. described the clinical, histologic, and molecular characterization of 15 patients with heavy chain deposition disease, which is the largest case series to date. Notable findings included the frequent presence of C3 deposits and hypocomplementemia, the uniform finding of truncated heavy chains with the deletion in the heavy chain constant region 1, and the common occurrence of an abnormal serum-free κ:λ ratio, despite the absence of light-chain tissue deposition...
February 2017: Kidney International
https://www.readbyqxmd.com/read/28073707/analytical-performances-of-optilite-%C3%A2-turbidimeter-the-binding-site-a-new-dedicated-analyser-for-specific-proteins-determination
#2
Pascale Ghillani, Laurent Dufat, Delphine Sterlin, Lucile Musset
We checked analytical performances of Optilite(®) analyser for immunoglobulins G, A, M, subclasses of IgG, free light chains of Ig (Freelite(®)) and complement's fractions using Binding Site reagents. CVs for repeteability and reproducibility showed very good results, respectively <3% and <10% for all tested parameters, in agreement with Ricos and SFBC recommendations. Comparisons with results obtained on BN(™)II (Siemens) or SPAPLUS ® (Binding site) analysers showed a good agreement (>83%) according to Bland and Altman analysis...
January 10, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28069318/right-ventricular-hypertrophy-systolic-function-and-disease-severity-in-anderson-fabry-disease-an-echocardiographic-study
#3
Francesca Graziani, Marianna Laurito, Maurizio Pieroni, Faustino Pennestrì, Gaetano Antonio Lanza, Valentina Coluccia, Antonia Camporeale, Daniela Pedicino, Elena Verrecchia, Raffaele Manna, Filippo Crea
BACKGROUND: Right ventricular (RV) involvement has been described in Anderson-Fabry disease (AFD), especially in patients with established Fabry cardiomyopathy (FC). However, few and controversial data on RV systolic function are available, and there are no specific tissue Doppler studies. METHODS: Detailed echocardiographic examinations were performed in 45 patients with AFD. FC, defined as maximal left ventricular wall thickness ≥ 15 mm, was present in 12...
January 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28061989/high-risk-smoldering-myeloma-perspective-on-watchful-monitoring
#4
REVIEW
Siyang Leng, Suzanne Lentzsch
In a 2008 paper, Dispenzieri and colleagues at the Mayo Clinic proposed a risk stratification system for patients with smoldering multiple myeloma (SMM) based on the presence of three risk factors: serum M-protein ≥3 g/dL, bone marrow plasma cell percentage ≥10%, and a free light chain (FLC) ratio (κ to λ) of either ≤0.125 or ≥8. The patient in this vignette has all three risk factors, classifying him as high-risk, with an associated median time to progression (TTP) of 1.9 years. This is significantly worse than a patient with intermediate-risk (median TTP 5...
December 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/28061987/management-of-multiple-myeloma-in-resource-constrained-settings
#5
REVIEW
Lalit Kumar, Ranjit Kumar Sahoo
The prognosis of patients with multiple myeloma (MM) has improved significantly in the past two decades. This is attributed to use of novel agents for induction, high-dose chemotherapy and autologous stem cell transplantation (ASCT), maintenance therapy, and improved supportive care. Currently, evidence-based management guidelines/recommendations developed by International societies/groups are being followed partially in low-resource settings. Lack of quality diagnostics (eg, cytogenetics/fluorescence in situ hybridization (FISH), serum free light chains), novel therapeutics, and trained manpower, and limited financial resources are key challanges...
December 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/28052027/estrogen-receptor-%C3%AE-ligation-inhibits-hodgkin-lymphoma-growth-by-inducing-autophagy
#6
Marina Pierdominici, Angela Maselli, Silvia L Locatelli, Laura Ciarlo, Giuseppa Careddu, Mario Patrizio, Barbara Ascione, Antonella Tinari, Carmelo Carlo-Stella, Walter Malorni, Paola Matarrese, Elena Ortona
Although Hodgkin lymphoma (HL) is curable with current therapy, at least 20% of patients relapse or fail to make complete remission. In addition, patients who achieve long-term disease-free survival frequently undergo infertility, secondary malignancies, and cardiac failure, which are related to chemotherapeutic agents and radiation therapies. Hence, new therapeutic strategies able to counteract the HL disease in this important patient population are still a matter of study. Estrogens, in particular 17β-estradiol (E2), have been suggested to play a role in lymphoma cell homeostasis by estrogen receptors (ER) β activation...
December 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/28050001/light-chain-deposition-disease-diagnosed-with-laser-micro-dissection-liquid-chromatography-and-tandem-mass-spectrometry-of-nodular-glomerular-lesions
#7
Tomomichi Kasagi, Hironobu Nobata, Keisuke Suzuki, Naoto Miura, Shogo Banno, Akiyoshi Takami, Taro Yamashita, Yukio Ando, Hirokazu Imai
A 42-year-old man developed nephrotic syndrome and rapidly progressive renal failure. Kidney biopsy demonstrated nodular glomerulosclerosis, negative Congo red staining, and no deposition of light or heavy chains. Laser micro-dissection and liquid chromatography with tandem mass spectrometry of nodular lesions revealed the presence of a kappa chain constant region and kappa III variable region, which signified light chain deposition disease. Dexamethasone and thalidomide were effective in decreasing the serum levels of free kappa light chain from 147...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28042785/anterior-aortic-plane-systolic-excursion-a-novel-indicator-of-transplant-free-survival-in-systemic-light-chain-amyloidosis
#8
Marco M Ochs, Johannes Riffel, Arnt V Kristen, Ute Hegenbart, Stefan Schönland, Stefan E Hardt, Hugo A Katus, Derliz Mereles, Sebastian J Buss
BACKGROUND: Anterior aortic plane systolic excursion (AAPSE) was evaluated in the present pilot study as a novel echocardiographic indicator of transplant-free survival in patients with systemic light-chain amyloidosis. METHODS: Eighty-nine patients with light-chain amyloidosis were included in the post-hoc analysis. A subgroup of 54 patients with biopsy-proven cardiac amyloid infiltration were compared with 41 healthy individuals to evaluate the discriminative ability of echocardiographic findings...
December 2016: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28036132/diagnostic-accuracy-of-salivary-and-serum-free-light-chain-assays-in-primary-sj%C3%A3-gren-s-syndrome-a-pilot-study
#9
Pulukool Sandhya, Pamela Christudoss, Jayakanthan Kabeerdoss, Santosh K Mandal, Ramya Aithala, Gowri Mahasampath, Victoria Job, Debashish Danda
OBJECTIVE: To estimate levels of salivary and serum free light chains (FLCs) and explore its utility as a biomarker in primary Sjögren's syndrome (pSS). METHODS: Patients with pSS classified by American European Consensus group 2002 or American College of Rheumatology 2012 criteria between January 2015 and August 2015 were included. Healthy staff and non-first degree relatives of patients constituted controls. Serum and salivary FLCs were measured by immunoturbidometry using FREELITE(™) Human Kappa(κ) and Lambda(λ) Free Kit (Binding site, Birmingham, UK), on a Roche Modular P800...
December 30, 2016: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28017406/bortezomib-with-lenalidomide-and-dexamethasone-versus-lenalidomide-and-dexamethasone-alone-in-patients-with-newly-diagnosed-myeloma-without-intent-for-immediate-autologous-stem-cell-transplant-swog-s0777-a-randomised-open-label-phase-3-trial
#10
Brian G M Durie, Antje Hoering, Muneer H Abidi, S Vincent Rajkumar, Joshua Epstein, Stephen P Kahanic, Mohan Thakuri, Frederic Reu, Christopher M Reynolds, Rachael Sexton, Robert Z Orlowski, Bart Barlogie, Angela Dispenzieri
BACKGROUND: Lenalidomide plus dexamethasone is a reference treatment for patients with newly diagnosed myeloma. The combination of the proteasome inhibitor bortezomib with lenalidomide and dexamethasone has shown significant efficacy in the setting of newly diagnosed myeloma. We aimed to study whether the addition of bortezomib to lenalidomide and dexamethasone would improve progression-free survival and provide better response rates in patients with previously untreated multiple myeloma who were not planned for immediate autologous stem-cell transplant...
December 22, 2016: Lancet
https://www.readbyqxmd.com/read/28013338/colon-cancer-cell-derived-12-s-hete-induces-the-retraction-of-cancer-associated-fibroblast-via-mlc2-rho-rock-and-ca-2-signalling
#11
Serena Stadler, Chi Huu Nguyen, Helga Schachner, Daniela Milovanovic, Silvio Holzner, Stefan Brenner, Julia Eichsteininger, Mira Stadler, Daniel Senfter, Liselotte Krenn, Wolfgang M Schmidt, Nicole Huttary, Sigurd Krieger, Oskar Koperek, Zsuzsanna Bago-Horvath, Konstantin Alexander Brendel, Brigitte Marian, Oliver de Wever, Robert M Mader, Benedikt Giessrigl, Walter Jäger, Helmut Dolznig, Georg Krupitza
Retraction of mesenchymal stromal cells supports the invasion of colorectal cancer cells (CRC) into the adjacent compartment. CRC-secreted 12(S)-HETE enhances the retraction of cancer-associated fibroblasts (CAFs) and therefore, 12(S)-HETE may enforce invasivity of CRC. Understanding the mechanisms of metastatic CRC is crucial for successful intervention. Therefore, we studied pro-invasive contributions of stromal cells in physiologically relevant three-dimensional in vitro assays consisting of CRC spheroids, CAFs, extracellular matrix and endothelial cells, as well as in reductionist models...
December 24, 2016: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28009860/pore-size-and-concentration-effect-of-mesoporous-silica-nanoparticles-on-the-coefficient-of-thermal-expansion-and-optical-transparency-of-poly-ether-sulfone-films
#12
Nhat Tri Vo, Astam K Patra, Dukjoon Kim
Mesoporous silica nanoparticles (MSNs) with uniform size (<50 nm) yet with different pore diameters were synthesized, and used as fillers in poly(ether sulfone) (PES) films in order to decrease their coefficient of thermal expansion (CTE) without sacrificing optical transparency. Here, both CTE and optical transparency of the MSN/PES nanocomposite films gradually decreased with increasing MSN concentration. The PES films containing MSNs with larger pores showed the best performance in CTE and optical transparency...
December 23, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28009492/phenyl-benzo-b-phenothiazine-as-a-visible-light-photoredox-catalyst-for-metal-free-atom-transfer-radical-polymerization
#13
Krzysztof Matyjaszewski, Sajjad Dadashi-Silab, Xiangcheng Pan
This paper reports use of phenyl benzo[b]phenothiazine (Ph-benzoPTZ) as a visible light-induced metal-free atom transfer radical polymerization (ATRP) photoredox catalyst. Well-controlled polymerizations of various methacrylate monomers were conducted under a 392 nm visible light LED using Ph-benzoPTZ, activation of different alkyl halides. The use of the photocatalyst enabled temporal control over the growth of polymer chains during intermittent on/off periods. The polymerization was initiated and progressed only under stimulation by light and completely stopped in the absence of light...
December 23, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28008276/non-secretory-multiple-myeloma-from-biology-to-clinical-management
#14
REVIEW
Megan Murray Dupuis, Sascha A Tuchman
Multiple myeloma (MM) is the second most common hematologic malignancy in the US. It is typically characterized by production of large amounts of defective immunoglobulin (Ig). Diagnosing MM and monitoring treatment response, including eventual relapse, are largely based on sequential measurements of Ig. However, a small subset of MM called non-secretory multiple myeloma (NSMM) produces no detectable Ig. This subset of true NSMM has become even smaller over time, as the advent of the serum free light chain assay has resulted in the majority of NSMM patients being recategorized as light-chain MM - that is, MM cells that produce only the light-chain component of Ig...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27998074/light-up-channel-dyes-for-haloalkane-based-protein-labeling-in-vitro-and-in-bacterial-cells
#15
Spencer A Clark, Vijay Singh, Daniel Vega Mendoza, William Margolin, Eric T Kool
We describe a novel molecular strategy for engendering a strong light-up signal in fluorescence tagging of the genetically encoded HaloTag protein domain. We designed a set of haloalkane-derivatized dyes having twisted internal charge transfer (TICT) structures potentially narrow enough to partially fit into the enzyme's haloalkane-binding channel. Testing a range of short chain lengths revealed a number of active dyes, with seven carbons yielding optimum light-up signal. The dimethylaminostilbazolium chloroheptyl dye (1d) yields a 27-fold fluorescence emission enhancement (λex = 535 nm; Em(max) = 616 nm) upon reaction with the protein...
December 21, 2016: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/27995877/-the-diagnostic-and-prognostic-values-of-serum-free-light-chain-in-patients-with-primary-light-chain-amyloidosis
#16
C L Zhang, J Feng, K N Shen, W Su, C L Zhang, X F Huang, X X Cao, L Zhang, D B Zhou, J Li
Objective: To investigate the diagnostic and prognostic values of serum free light chain (sFLC) in patients with primary light chain amyloidosis (pAL). Methods: Patients diagnosed with pAL between January 2009 and June 2015 at Peking Union Medical College Hospital were included in this study to retrospectively evaluate the clinical data, sFLC, treatment and survival. Results: In total, 126 newly diagnosed pAL patients with complete sFLC data were included in this study. The median age was 57 years old (range, 37-81 years) and male to female ratio was 1...
November 14, 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/27976610/unexpected-migration-of-free-light-chains-in-urinary-protein-electrophoresis
#17
Isabelle Nel, Jean-Marie Thiolières, Pascale Ghillani-Dalbin, Claude Jacquiaud, Laurence Piéroni
Urinary protein electrophoresis analysis (UPE) is an essential investigation for the study of abnormal proteins in urines. The interpretation of this analysis must be comprehensive and relevant. Indeed, UPE is often requested by clinicians and may have an important impact in patient's management. This paper presents two cases with free light chains showing unexpected electrophoretic migration which can lead to the misinterpretation of results. This article helps biologists to keep in mind the interest of UPE among the several analyses useful in the laboratory...
December 15, 2016: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/27974705/are-neurological-complications-of-monoclonal-gammopathy-of-undetermined-significance-underestimated
#18
Normann Steiner, Angelika Schwärzler, Georg Göbel, Wolfgang Löscher, Julia Wanschitz, Eberhard Gunsilius
OBJECTIVES: Monoclonal gammopathy of undetermined significance (MGUS) is a premalignancy preceding multiple myeloma (MM) or related disorders. Neurological symptoms caused by the monoclonal immunoglobulins or free light-chains are often associated with a high morbidity. We analyzed the prevalence of neuropathy, clinical features and the long-term outcome in 223 patients (pts.) with MGUS. PATIENTS AND METHODS: Between 1/2005 and 3/2015, 223 adult pts. with MGUS were identified in our database...
December 10, 2016: Oncotarget
https://www.readbyqxmd.com/read/27973834/experimental-and-theoretical-investigations-of-infrared-multiple-photon-dissociation-spectra-of-asparagine-complexes-with-zn-2-and-cd-2-and-their-deamidation-processes
#19
Georgia C Boles, Rebecca A Coates, Giel Berden, Jos Oomens, P B Armentrout
Complexes of asparagine (Asn) cationized with Zn(2+) and Cd(2+) were examined by infrared multiple photon dissociation (IRMPD) action spectroscopy using light generated from a free electron laser. Electrospray ionization yielded complexes of deprotonated Asn with Zn(2+), [Zn(Asn-H)](+), and intact Asn with CdCl(+), CdCl(+)(Asn). Series of low energy conformers for each complex were found using quantum chemical calculations in order to identify the structures formed experimentally. The experimentally obtained spectra were compared to those calculated from optimized structures at the B3LYP/6-311+G(d,p) level for [Zn(Asn-H)](+) and the B3LYP/def2-TZVP level with an SDD effective core potential on cadmium for the CdCl(+)(Asn) system...
December 15, 2016: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/27973516/amplification-of-a-nanosecond-laser-pulse-chain-via-dynamic-injection-locking-of-a-laser-diode
#20
Jun He, Gang Jin, Bei Liu, Junmin Wang
We report a novel optical pulse generation method for high-speed wavelength switching of amplified nanosecond (ns) laser pulses resonant to atomic transitions. Under free-running conditions, a slave laser diode is blue-detuned with tens of GHz relative to the master laser. A nanosecond pulse chain generated by modulating the continuous-wave master laser with a fiber-pigtailed electro-optical intensity modulator is injected into the slave laser diode to fast switch the slave laser's wavelength back and forth...
December 15, 2016: Optics Letters
keyword
keyword
26106
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"