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Free light chains

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https://www.readbyqxmd.com/read/29785630/calcium-channels-rho-kinase-protein-kinase-c-and-phospholipase-c-pathways-mediate-mercury-chloride-induced-myometrial-contractions-in-rats
#1
Swati Koli, Atul Prakash, Soumen Choudhury, Rajesh Mandil, Satish K Garg
Adverse effects of mercury on female reproduction are reported; however, its effect on myogenic activity of uterus and mechanism thereof is obscure. Present study was undertaken to unravel the mechanistic pathways of mercuric chloride (HgCl2 )-induced myometrial contraction in rats. Isometric tension in myometrial strips of rats following in vitro exposure to HgCl2 was recorded using data acquisition system-based physiograph. HgCl2 produced concentration-dependent (10 nM-100 μM) uterotonic effect which was significantly (p < 0...
May 21, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29781609/enhancement-and-analysis-of-human-anti-aflatoxin-b1-afb1-scfv-antibody-ligand-interaction-using-chain-shuffling
#2
Kuntalee Rangnoi, Kiattawee Choowongkomon, Richard O'Kennedy, Florian Rüker, Montarop Yamabhai
A human anti-aflatoxin B1 (AFB1) scFv antibody (yAFB1-c3), selected from a naïve human phage-displayed scFv library, was used as a template for improving and analysis of antibody-ligand interactions using the chain-shuffling technique. The variable heavy and variable light (VH/VL) shuffled library was constructed from the VH of 25 pre-selected clones recombined with the VL of yAFB1-c3 and vice versa. Affinity selection from these library demonstrated that the VH domain played an important role in the binding of scFv to free AFB1...
May 21, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29780536/thermoreversible-crystallization-driven-aggregation-of-diblock-copolymer-nanoparticles-in-mineral-oil
#3
Matthew J Derry, Oleksandr O Mykhaylyk, Anthony J Ryan, Steven P Armes
A poly(behenyl methacrylate)37 (PBeMA37 ) macromolecular chain transfer agent is utilized for the reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of benzyl methacrylate (BzMA) directly in mineral oil at 90 °C. Polymerization-induced self-assembly (PISA) occurs under these conditions, yielding a series of sterically-stabilized PBeMA37 -PBzMA x diblock copolymer spheres of tunable diameter as confirmed by dynamic light scattering (DLS) and transmission electron microscopy (TEM) studies...
May 7, 2018: Chemical Science
https://www.readbyqxmd.com/read/29770800/current-and-future-circulating-biomarkers-for-cardiac-amyloidosis
#4
REVIEW
Marco Luciani, Luca Troncone, Federica Del Monte
Cardiac amyloidosis (CA) comprises a heterogeneous group of medical conditions affecting the myocardium. It presents with proteinaceous infiltration with variable degrees of severity, prevalence and evolution. Despite this heterogeneity, erroneous protein folding is the common pathophysiologic process, yielding the formation of a single misfolded protein (monomer) that progressively evolves and ultimately forms amyloid fibers. Additionally, by seeding out from the organs of origin, intermediates called oligomers metastasize and restart the process...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29767409/the-use-of-serum-free-light-chain-dimerization-patterns-assist-in-the-diagnosis-of-al-amyloidosis
#5
Moshe E Gatt, Batia Kaplan, Dean Yogev, Elana Slyusarevsky, Galina Pogrebijski, Sizilia Golderman, Olga Kukuy, Avi Livneh
The discrimination between benign and malignant forms of plasma cell dyscrasia (PCD) is often difficult. Free light chain monomer-dimer pattern analysis (FLC-MDPA) may assist in solving this dilemma and distinguish between AL amyloidosis and benign PCD. Serum samples of patients with AL amyloidosis and benign PCD were analysed in a blinded manner. Quantitative Western blotting was performed to estimate dimerization and clonality indices, and thereby determine the source of the tested samples, as derived either from benign or malignant PCD...
May 16, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29765992/serological-immunoglobulin-free-light-chain-profile-in-myasthenia-gravis-patients
#6
Umberto Basile, Mariapaola Marino, Cecilia Napodano, Krizia Pocino, Paolo Emilio Alboini, Francesca Gulli, Amelia Evoli, Carlo Provenzano, Emanuela Bartoccioni
Background: Serological levels of free immunoglobulin light chains (FLCs), produced in excess of heavy chains during synthesis of immunoglobulins by plasma cells, can be considered a direct marker of B cell activity in different systemic inflammatory-autoimmune conditions and may represent a useful predictor of rituximab (RTX) therapeutic efficacy, as reported for rheumatoid arthritis and systemic lupus erythematosus. Myasthenia gravis (MG) is an autoimmune disease of the neuromuscular junction with antibodies (abs) targeting the acetylcholine receptor (AChR) or the muscle-specific tyrosine kinase (MuSK), inducing muscle weakness and excessive fatigability...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29763937/bacteriophage-cocktail-for-biocontrol-of-escherichia-coli-o157-h7-stability-and-potential-allergenicity-study
#7
Karina Ramirez, Carmina Cazarez-Montoya, Hector Samuel Lopez-Moreno, Nohelia Castro-Del Campo
Escherichia coli O157:H7 has become a global public health and a food safety problem. Despite the implementation of control strategies that guarantee the safety in various products, outbreaks persist and new alternatives are necessary to reduce this pathogen along the food chain. Recently, our group isolated and characterised lytic bacteriophages against E. coli O157:H7 with potential to be used as biocontrol agents in food. To this end, phages need certain requirements to allow their manufacture and application...
2018: PloS One
https://www.readbyqxmd.com/read/29762844/free-fatty-acids-mediates-human-umbilical-vein-endothelial-cells-inflammation-through-toll-like-receptor-4
#8
L Chen, C-X Yu, B Song, W Cai, C Liu, Q-B Guan
OBJECTIVE: To investigate the role of Toll-like receptor-4 (TLR4) in the free fatty acids (FFAs) induced human umbilical vein endothelial cells (HUVECs) inflammation and to explore the underlying mechanisms. MATERIALS AND METHODS: HUVECs and HEK293 cell lines were obtained from Shanghai Type Culture Collection. Cell counting kit-8 (CCK8) and flow cytometry (FCM) were performed to examine the cell viability and apoptosis rate of HUVECs induced by FFAs treatments with or without infection of toll-like receptor-4 interference (TLR4i) adenovirus...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29761682/plasmapheresis-in-a-patient-with-sarcoidosis-who-developed-multiple-myeloma-and-massive-free-kappa-light-chains-nephropathy
#9
Arie Markel, Nayef Habashe, Ariel Aviv, Olga Monich, Irit Elmalah, Nadeem Marei, David Tovbin
No abstract text is available yet for this article.
May 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29761500/compositional-and-transcriptomic-analysis-associated-with-cuticle-lipid-production-on-rosette-and-inflorescence-stem-leaves-in-the-extremophyte-thellungiella-salsuginea
#10
Shuai Tang, Ningmei Chen, Buerbatu Song, Junqing He, Yijun Zhou, Matthew A Jenks, Xiaojing Xu
The plant cuticle is a complex structure composed primarily of wax and cutin, but also contains cutan, glycerolipids, phenolics, polysaccharides, and proteins. The cuticle plays an important protective role as barrier between plants and their environment. In this paper, 4-week old leaves produced either on the rosette or on the inflorescence stem of the model extremophyte Thellungiella salsuginea were examined using scanning electron microscopy, cuticle permeability assays, and chemical composition analysis...
May 14, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29752896/wavelength-dependence-of-vasodilation-and-no-release-from-s-nitrosothiols-and-dinitrosyl-iron-complexes-by-far-red-near-infrared-light
#11
Agnes Keszler, Brian Lindemer, Neil Hogg, Dorothee Weihrauch, Nicole L Lohr
Far red/near infrared (R/NIR) energy is a novel therapy, but its mechanism of action is poorly characterized. Cytochrome c oxidase (Cco) of the mitochondrial electron transport chain is considered the primary photoacceptor for R/NIR to photolyze a putative heme nitrosyl in Cco to liberate free nitric oxide (NO). We previously observed R/NIR light directly liberates NO from nitrosylated hemoglobin and myoglobin, and recently suggested S-nitrosothiols (RSNO) and dinitrosyl iron complexes (DNIC) may be primary sources of R/NIR-mediated NO...
May 9, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29748430/epidemiology-of-al-amyloidosis-a-real-world-study-using-us-claims-data
#12
Tiffany P Quock, Tingjian Yan, Eunice Chang, Spencer Guthrie, Michael S Broder
Amyloid light-chain (AL) amyloidosis is a rare disease caused by extracellular deposition of misfolded immunoglobulin light chains. This study aimed to provide an up-to-date estimate of prevalence and incidence of AL amyloidosis in the United States. Using claims databases from years 2007 to 2015, adults ≥18 years old with AL amyloidosis were included if they had (1) at least 1 inpatient or 2 outpatient claims consistent with AL amyloidosis and (2) received 1 AL-specific treatment. Prevalence was calculated as the number of AL patients divided by the number of enrollees on June 30th of each calendar year...
May 22, 2018: Blood Advances
https://www.readbyqxmd.com/read/29743290/cerebrospinal-fluid-immunoglobulin-light-chain-ratios-predict-disease-progression-in-multiple-sclerosis
#13
Emma Rathbone, Lindsay Durant, James Kinsella, Antony R Parker, Ghaniah Hassan-Smith, Michael R Douglas, S John Curnow
OBJECTIVE: To determine whether the ratio of cerebrospinal fluid (CSF) immunoglobulin kappa to lambda light chains at time of multiple sclerosis (MS) diagnosis predicts disease progression and whether this was intrinsic to CSF plasmablasts. METHODS: CSF and peripheral blood were obtained from patients undergoing elective diagnostic lumbar puncture and included clinically isolated syndrome (CIS) (n=43), relapsing remitting MS (RRMS; n=50), primary progressive MS (PPMS; n=20) and other neurological disease controls, both inflammatory (ONID; n=23) and non-inflammatory (OND; n=114)...
May 9, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29742142/association-between-urinary-free-light-chains-and-progression-to-end-stage-renal-disease-in-chronic-kidney-disease
#14
Anthony Fenton, Mark D Jesky, Rachel Webster, Stephanie J Stringer, Punit Yadav, Iain Chapple, Indranil Dasgupta, Stephen J Harding, Charles J Ferro, Paul Cockwell
BACKGROUND: Patients with chronic kidney disease (CKD) are at an increased risk of developing end-stage renal disease (ESRD). We assessed for the first time whether urinary free light chains (FLC) are independently associated with risk of ESRD in patients with CKD, and whether they offer incremental value in risk stratification. MATERIALS AND METHODS: We measured urinary FLCs in 556 patients with CKD from a prospective cohort study. The association between urinary kappa/creatinine (KCR) and lambda/creatinine (LCR) ratios and development of ESRD was assessed by competing-risks regression (to account for the competing risk of death)...
2018: PloS One
https://www.readbyqxmd.com/read/29741166/extending-lead-free-hybrid-photovoltaic-materials-to-new-structures-thiazolium-aminothiazolium-and-imidazolium-iodobismuthates
#15
Tianyue Li, Qifei Wang, Gary S Nichol, Carole A Morrison, Hongwei Han, Yue Hu, Neil Robertson
We report on the synthesis, crystal structures, optoelectronic properties and solar cell device studies of three novel organic-inorganic iodobismuthates - [C3H4NS]3[Bi2I9] ([TH]3[Bi2I9]), [C3H4N2]3[Bi2I9] ([IM]3[Bi2I9]) and [C3H5N2S][BiI4] ([AT][BiI4]) as lead-free light harvesters. [TH]3[Bi2I9] and [IM]3[Bi2I9] show zero-dimensional structures, whereas a one-dimensional edge-sharing chain structure of BiI6-octahedra was observed in [AT][BiI4], with interchain short II contacts also giving rise to the possibility of three-dimensional charge transport ability...
May 9, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29739080/serum-free-light-chain-predict-overall-survival-and-response-to-therapy-in-patients-with-newly-diagnosed-multiple-myeloma
#16
Yanis Meddour, Momahed C Rahali, Salah E Belakehal, Fatma Z Ardjoun, Samia Chaib, Reda Djidjik
BACKGROUND: Multiple myeloma is characterized by underlying clinical and biological heterogeneity, which translates to variable responses to treatment and outcome. METHODS: To assess the roles of serum free light chain (sFLC) and K/L FLC ratio (rFLC) in the diagnoses and prognoses of multiple myeloma (MM), sFLC levels and K/L ratios were measured in 112 patients with newly diagnosed multiple myeloma using the Freelite automated immunoassay. RESULTS: Abnormal sFLC and/or rFLC levels were detected 99...
April 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29725932/light-chain-cast-nephropathy-practical-considerations-in-the-management-of-myeloma-kidney-what-we-know-and-what-the-future-may-hold
#17
REVIEW
Sandhya Manohar, Samih H Nasr, Nelson Leung
PURPOSE OF REVIEW: To update and evaluate the current knowledge on pathogenesis and management of light chain cast nephropathy. Light chain cast nephropathy (LCCN) is the leading cause of acute renal failure in patients with multiple myeloma and is currently recognized as a myeloma defining event. RECENT FINDINGS: The immunoglobulin free light chain plays an integral role in the pathogenesis of LCCN. The level of free light chain (FLC) in the blood and urine is directly associated with the risk of developing LCCN...
May 3, 2018: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/29725685/polymer-free-electrospinning-of-tannic-acid-and-cross-linking-in-water-for-hybrid-supramolecular-nanofibres
#18
Manon Allais, Domitille Mailley, Pascal Hébraud, Dris Ihiawakrim, Vincent Ball, Florent Meyer, Anne Hébraud, Guy Schlatter
Electrospinning is the process of choice allowing the preparation of nanofibrous materials from a solution usually based on a high molar mass polymer. The solution must bring enough chain entanglements to avoid any breaking or Rayleigh instability of the electrospun jet resulting thus in the deposition of a continuous and regular solid nanofibre. It has been however shown that some few non-polymeric molecules can be electrospun without using a carrier polymer. We demonstrate here the case of tannic acid. Indeed, it was possible to electrospin this molecule solubilised in a mixture of water and ethanol as well as in pure water...
May 4, 2018: Nanoscale
https://www.readbyqxmd.com/read/29713719/osteocalcin-facilitates-calcium-phosphate-ion-complex-growth-as-revealed-by-free-energy-calculation
#19
Weilong Zhao, Ziqiu Wang, Zhijun Xu, Nita Sahai
The nanoscopic structural and thermodynamic basis of biomolecule-regulated assembly and crystallization of inorganic solids have a tremendous impact on the rational design of novel functional nanomaterials, but are concealed by many difficulties in molecular-level characterization. Here we demonstrate that the free energy calculation approach, enabled by combining advanced molecular simulation techniques, can unravel the structural and energetic mechanisms of protein-mediated inorganic solid nucleation. It is observed that osteocalcin (OCN), an important non-collagenous protein involved in regulating bone formation, promotes the growth of nanosized calcium phosphate (CaP) ion clusters from a supersaturated solution...
May 1, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29710195/multiple-myeloma-and-its-precursor-disease-among-firefighters-exposed-to-the-world-trade-center-disaster
#20
Ola Landgren, Rachel Zeig-Owens, Orsolya Giricz, David Goldfarb, Kaznouri Murata, Katie Thoren, Lakshmi Ramanathan, Malin Hultcrantz, Ahmet Dogan, George Nwankwo, Ulrich Steidl, Kith Pradhan, Charles B Hall, Hillel W Cohen, Nadia Jaber, Theresa Schwartz, Laura Crowley, Michael Crane, Shani Irby, Mayris P Webber, Amit Verma, David J Prezant
Importance: The World Trade Center (WTC) attacks on September 11, 2001, created an unprecedented environmental exposure to known and suspected carcinogens suggested to increase the risk of multiple myeloma. Multiple myeloma is consistently preceded by the precursor states of monoclonal gammopathy of undetermined significance (MGUS) and light-chain MGUS, detectable in peripheral blood. Objective: To characterize WTC-exposed firefighters with a diagnosis of multiple myeloma and to conduct a screening study for MGUS and light-chain MGUS...
April 26, 2018: JAMA Oncology
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