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Monoclonal gammopathy

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https://www.readbyqxmd.com/read/28930107/cutaneous-rosai-dorfman-disease-with-linear-lesions-and-monoclonal-gammopathy
#1
Edward Bae, Paul White, Mary Brophy, Michael Lichtman, Michael S Krathen, Meera Mahalingam
Cutaneous Rosai-Dorfman disease (CRDD), a benign histiocytosis of unknown etiology, typically presents as a solitary or clusters of lesions. Although the histopathology is fairly distinctive, the laboratory abnormalities are not; past reports note elevated erythrocyte sedimentation rate, anemia, and polyclonal hyperglobulinemia. We describe a 61-year-old African American diabetic gentleman who presented with nodules in a linear distribution on the flank. Histopathologic examination of a biopsied nodule revealed a pandermal sheet-like infiltrate of plasma cells and histiocytes, some demonstrating elastophagocytosis and emperipolesis...
October 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28916439/on-the-path-to-evidence-based-reporting-of-serum-protein-electrophoresis-patterns-in-the-absence-of-a-discernible-monoclonal-protein-a-critical-review-of-literature-and-practice-suggestions
#2
Pak Cheung Chan, Yu Chen, Edward W Randell
No abstract text is available yet for this article.
September 12, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28915615/expression-of-cd38-in-myeloma-bone-niche-a-rational-basis-for-the-use-of-anti-cd38-immunotherapy-to-inhibit-osteoclast-formation
#3
Federica Costa, Denise Toscani, Antonella Chillemi, Valeria Quarona, Marina Bolzoni, Valentina Marchica, Rosanna Vescovini, Cristina Mancini, Eugenia Martella, Nicoletta Campanini, Chiara Schifano, Sabrina Bonomini, Fabrizio Accardi, Alberto L Horenstein, Franco Aversa, Fabio Malavasi, Nicola Giuliani
It is known that multiple myeloma (MM) cells express CD38 and that a recently developed human anti-CD38 monoclonal antibody Daratumumab mediates myeloma killing. However, the expression of CD38 and other functionally related ectoenzymes within the MM bone niche and the potential effects of Daratumumab on bone cells are still unknown. This study firstly defines by flow cytometry and immunohistochemistry the expression of CD38 by bone marrow cells in a cohort of patients with MM and indolent monoclonal gammopathies...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915587/expression-and-release-of-glucose-regulated-protein-78-grp78-in-multiple-myeloma
#4
Normann Steiner, Bojana Borjan, Roman Hajek, Karin Jöhrer, Georg Göbel, Wolfgang Willenbacher, Johann Kern, Eberhard Gunsilius, Gerold Untergasser
INTRODUCTION: Multiple myeloma (MM) is a plasma cell neoplasm that is mostly incurable due to acquired resistance during the treatment course. Thus, we evaluated expression and release of glucose-regulated protein 78 kDa (GRP78/BiP), an endoplasmic reticulum (ER) based pro-survival chaperone involved in immunoglobulin folding and unfolded protein responses. RESULTS: GRP78 protein expression in the ER and on the cell surface did not significantly differ between MGUS, NDMM and RRMM patients although there was a trend to higher surface expression in RRMM...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912918/prospective-identification-of-oligoclonal-abnormal-band-of-the-same-immunoglobulin-type-as-the-malignant-clone-by-differential-location-of-m-spike-and-oligoclonal-band
#5
Shikhar G Vyas, Gurmukh Singh
BACKGROUND: Serum and urine protein electrophoreses and immunofixation electrophoreses are the gold standards in diagnosing monoclonal gammopathy. Identification of oligoclonal bands in post-treatment patients has emerged as an important issue and recording the location of the malignant monoclonal peak may facilitate prospective identification of a new "monoclonal" spike as being distinct from the malignant peak. METHODS: We recorded the locations of monoclonal spikes in descriptive terms, such as being in the cathodal region, mid-gamma region, anodal region, and beta region...
October 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28903575/diagnostic-tools-of-waldenstr%C3%A3-ms-macroglobulinemia-best-possibilities-for-non-invasive-and-long-term-disease-monitoring
#6
K Growkova, Z Kufová, T Sevcikova, J Filipová, M Kascak, T Jelínek, S Grosicki, A Barchnicka, Ľ Roziaková, M Mistrík, M Simicek, R Hájek
Waldenströms macroglobulinemia (WM) is a B-cell malignancy characterized by high level of monoclonal immunoglobulin M (IgM) paraprotein in blood serum and associated with the bone marrow infiltration by malignant cells with lymphoplasmacytic differentiation. WM remains incurable advances in therapy. Most of WM cases are associated with a somatic point mutation L265P in MYD88. Significantly higher risk of progression from the IgM monoclonal gammopathy of undetermined significance (IgM MGUS) to WM for patients with mutated MYD88 gene suggests that this mutation is an early oncogenic event and plays a central role in development of malignant clones...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28903572/biomarkers-in-immunoglobulin-light-chain-amyloidosis
#7
Z Kufová, T Sevcikova, K Growkova, P Vojta, J Filipová, Z Adam, L Pour, M Penka, R Rysava, P Němec, L Brozova, P Vychytilova, A Jurczyszyn, S Grosicki, A Barchnicka, M Hajdúch, M Simicek, R Hájek
Immunoglobulin light chain amyloidosis (AL amyloidosis - ALA) is a monoclonal gammopathy characterized by presence of aberrant plasma cells producing amyloidogenic immunoglobulin light chains. This leads to formation of amyloid fibrils in various organs and tissues, mainly in heart and kidney, and causes their dysfunction. As amyloid depositing in target organs is irreversible, there is a big effort to identify biomarker that could help to distinguish ALA from other monoclonal gammopathies in the early stages of disease, when amyloid deposits are not fatal yet...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28903571/asymptomatic-and-treatment-requiring-multiple-myeloma-data-from-the-czech-registry-of-monoclonal-gammopathies
#8
L Brozova, J Jarkovský, L Pour, J Minárik, A Jungová, E Gregora, I Spicka, V Maisnar, R Hájek
BACKGROUND: Monoclonal gammopathy of undetermined significance (MGUS) and smouldering multiple myeloma (SMM) are premalignant stages of multiple myeloma (MM). MM is a malignancy of plasma cells, which is associated with a median overall survival of 5 to 7 years. MM accounts for approximately 10% of hematological malignancies. PATIENTS AND METHODS: Descriptive analysis of data from 19 Czech centres collected in the Registry of Monoclonal Gammopathies (RMG) was performed...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28903570/czech-registry-of-monoclonal-gammopathies-technical-solution-data-collection-and-visualisation
#9
L Brozova, D Schwarz, I Snabl, J Kalina, B Pavlickova, M Komenda, J Jarkovský, P Němec, D Horinek, Z Stefanikova, L Pour, R Hájek, V Maisnar
BACKGROUND: The Registry of Monoclonal Gammopathies (RMG) was established by the Czech Myeloma Group in 2007. RMG is a registry designed for the collection of clinical data concerning diagnosis, treatment, treatment results and survival of patients with monoclonal gammopathies. Data on patients with monoclonal gammopathy of undetermined significance (MGUS), Waldenström macroglobulinaemia (WM), multiple myeloma (MM) or primary AL ("amyloid light-chain") amyloidosis are collected in the registry...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28903569/epidemiology-of-multiple-myeloma-in-the-czech-republic
#10
D Maluskova, I Svobodová, M Kucerova, L Brozova, J Muzik, J Jarkovský, R Hájek, V Maisnar, L Dusek
BACKGROUND: Multiple myeloma (MM) is a cancer of plasma cells with an incidence of 4.8 cases per 100,000 population in the Czech Republic in 2014; the burden of MM in the Czech Republic is moderate when compared to other European countries. This work brings the latest information on MM epidemiology in the Czech population. MATERIAL AND METHODS: The Czech National Cancer Registry is the basic source of data for the population-based evaluation of MM epidemiology. This database also makes it possible to assess patient survival and to predict probable short-term as well as long-term trends in the treatment burden of the entire population...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28903568/circulating-plasma-cells-in-monoclonal-gammopathies
#11
R Bezdekova, M Penka, R Hájek, L Rihova
BACKGROUND: Monoclonal gammopathies are characterized by presence of clonal plasma cells in the bone marrow, although peripheral blood circulating plasma cells can be found in a significant proportion of patients. The number of circulating plasma cells is an independent prognostic marker associated with shorter survival, but it can also help to predict early relapse. The reason and mechanism of plasma cell expansion from the bone marrow to enter peripheral blood is still not entirely clear, but possible changes in the expression of adhesion molecules are probably involved...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28903566/biobanking-the-first-step-to-successful-liquid-biopsy-experiments
#12
M Almasi, S Sevcikova, M Penka, M Krejci, Z Adam, P Vrublova, T Jelínek, R Hájek
BACKGROUND: Archiving of biological materials in biobanks is considered to be the initial crucial part of research activities. Most often, biobanks are founded for research purposes since they allow collection of sufficient material for analysis of new or testing of previously identified biomarkers. Biobanking needs to quickly react to current needs of researchers as well as clinicians, it is not a rigid system. Laboratory analyses of monoclonal gammopathies are based on separation of plasma cells from bone marrow of patients...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28893029/poems-syndrome-with-biclonal-gammopathy-a-rare-association
#13
Dibyendu De, Sandeepan Halder, Suvro Sankha Datta
Polyneuropathy, Organomegaly, Endocrinopathy, M protein and Skin changes (POEMS) syndrome is rare plasma cell dyscrasia with multisystem involvement. The name comes from the five characteristic features: Polyneuropathy, organomegaly, endocrinopathy, M protein and skin changes. The presence of biclonal M band is a rare manifestation. Here, we are describing the cases of a 60-year-old lady, presented with bilateral pedal oedema and pericardial effusion and peripheral neuropathy. She also had hepatosplenomegaly, hyperpigmented rash and hypothyroidism and hyperparathyroidism...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28888072/characterization-of-isolated-amyloid-myopathy
#14
Teerin Liewluck, Margherita Milone
BACKGROUND AND PURPOSE: Amyloid myopathy frequently occurs in the setting of systemic amyloidosis and less commonly in isolation (isolated amyloid myopathy). Anoctaminopathy-5 and dysferlinopathy were recently recognized as causes of isolated amyloid myopathy. The present study aimed to characterize the isolated amyloid myopathy and to compare it with amyloid myopathy associated with systemic amyloidosis. METHODS: We searched Muscle Laboratory database to identify patients with pathologically-confirmed amyloid myopathy and were seen in neurology clinics between January 1998 and September 2016...
September 9, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28886417/is-long-term-particulate-matter-and-nitrogen-dioxide-air-pollution-associated-with-incident-monoclonal-gammopathy-of-undetermined-significance-mgus-an-analysis-of-the-heinz-nixdorf-recall-study
#15
Ester Orban, Marina Arendt, Frauke Hennig, Sarah Lucht, Lewin Eisele, Hermann Jakobs, Jan Dürig, Barbara Hoffmann, Karl-Heinz Jöckel, Susanne Moebus
BACKGROUND: Exposure to air pollution activates the innate immune system and influences the adaptive immune system in experimental settings. We investigated the association of residential long-term exposure to particulate matter (PM) and NO2 air pollution with monoclonal gammopathy of undetermined significance (MGUS) as a marker of adaptive immune system activation. METHODS: We used data from the baseline (2000-2003), 5-year (2006-2008) and 10-year (2011-2015) follow-up examinations of the German Heinz Nixdorf Recall cohort study of 4814 participants (45-75years)...
September 5, 2017: Environment International
https://www.readbyqxmd.com/read/28886228/the-serum-heavy-light-chain-immunoassay-a-valuable-tool-for-sensitive-paraprotein-assessment-risk-and-disease-monitoring-in-monoclonal-gammopathies
#16
Christine Greil, Gabriele Ihorst, Felix Gaiser, Ulrich Salzer, Emanuel Bisse, Efstathios Kastritis, Heinz Ludwig, Ralph Wäsch, Monika Engelhardt
OBJECTIVE: The heavy/light chain (HLC)-immunoassay quantifies light chain types of each immunoglobulin class in patients with monoclonal gammopathies. METHODS: We assessed 147 consecutive patients with different forms and stages of plasma cell dyscrasias (PCD) who received standard tests (serum and urine protein electrophoresis [SPEP, UPEP], immunofixation [IFE], serum free light chain [SFLC]) and HLC-immunoassay. Patients with multiple myeloma (MM, n=102), smoldering MM (SMM, n=5), monoclonal gammopathy of undetermined significance (MGUS, n=28) and waldenström's macroglobulinemia (WM, n=12) were included...
September 8, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28885714/monoclonal-gammopathy-of-undetermined-significance-mgus-as-viewed-by-haematology-healthcare-professionals
#17
Charlene M McShane, Blain Murphy, Kah Heng Lim, Lesley A Anderson
OBJECTIVES: To investigate the words and descriptions used by haematology healthcare professionals (HCPs) to describe monoclonal gammopathy of undetermined significance (MGUS) to their patients. METHODS: A cross-sectional survey of haematology HCPs attending an annual haematology conference was undertaken. Content analysis was applied to the returned qualitative responses. RESULTS: In total, 55 people, many of whom were doctors (n=32; 58.2%) responded...
September 8, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#18
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28856420/iodine-based-contrast-media-multiple-myeloma-and-monoclonal-gammopathies-literature-review-and-esur-contrast-media-safety-committee-guidelines
#19
Fulvio Stacul, Michele Bertolotto, Henrik S Thomsen, Gabriele Pozzato, Donatella Ugolini, Marie-France Bellin, Georg Bongartz, Olivier Clement, Gertraud Heinz-Peer, Aart van der Molen, Peter Reimer, Judith A W Webb
OBJECTIVES: Many radiologists and clinicians still consider multiple myeloma (MM) and monoclonal gammopathies (MG) a contraindication for using iodine-based contrast media. The ESUR Contrast Media Safety Committee performed a systematic review of the incidence of post-contrast acute kidney injury (PC-AKI) in these patients. METHODS: A systematic search in Medline and Scopus databases was performed for renal function deterioration studies in patients with MM or MG following administration of iodine-based contrast media...
August 30, 2017: European Radiology
https://www.readbyqxmd.com/read/28856227/location-of-monoclonal-peak-as-a-tool-in-checking-specimen-integrity
#20
Shikhar G Vyas, Gurmukh Singh
OBJECTIVES: Serum protein electrophoresis is a commonly used test in the diagnosis and follow-up of patients with monoclonal gammopathies. The practice of documenting the location of the peak may serve as delta check flags in SPEP samples. METHODS: We report on the inconsistent finding on two tests performed about three months apart. The inconsistency was discovered due to recognition of the change in the location of the monoclonal immunoglobulin on protein electrophoresis...
August 2017: Pract Lab Med
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