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https://www.readbyqxmd.com/read/29345175/a-role-for-bone-turnover-markers-%C3%AE-crosslaps-ctx-and-amino-terminal-propeptide-of-type-i-collagen-pinp-as-potential-indicators-for-disease-progression-from-mgus-to-multiple-myeloma
#1
Sonia Vallet, Nicholas R Hoyle, Robert A Kyle, Klaus Podar, Martin Pecherstorfer
Multiple myeloma (MM) is characterized by bone lesions arising due to unbalanced bone remodeling. Changes in the bone formation marker amino-terminal propeptide of type I collagen (PINP) and the bone resorption marker β-CrossLaps (CTX) reflect physiologic bone turnover. Whether PINP and CTX have a role in disease progression from monoclonal gammopathy of undetermined significance (MGUS) to MM is unknown. In this cross-sectional follow-up study, 241 patients with MM or MGUS were included. Serum levels of PINP and CTX were significantly higher in MM patients compared to MGUS...
January 18, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29342381/long-term-follow-up-of-monoclonal-gammopathy-of-undetermined-significance
#2
Robert A Kyle, Dirk R Larson, Terry M Therneau, Angela Dispenzieri, Shaji Kumar, James R Cerhan, S Vincent Rajkumar
BACKGROUND: Monoclonal gammopathy of undetermined significance (MGUS) occurs in approximately 3% of persons 50 years of age or older. METHODS: We studied 1384 patients who were residing in southeastern Minnesota and in whom MGUS was diagnosed at the Mayo Clinic in the period from 1960 through 1994; the median follow-up was 34.1 years (range, 0.0 to 43.6). The primary end point was progression to multiple myeloma or another plasma-cell or lymphoid disorder. RESULTS: During 14,130 person-years of follow-up, MGUS progressed in 147 patients (11%), a rate that was 6...
January 18, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29330758/-monoclonal-gammopathy-of-undetermined-significance-and-multiple-myeloma
#3
REVIEW
M Schmalzing, H-P Tony, S Knop
In rheumatological practice monoclonal gammopathy of undetermined significance (MGUS) is a common incidental finding. Several rheumatic inflammatory diseases are known to have an elevated risk of MGUS, which can evolve into multiple myeloma or other lymphatic malignancies. The relevant definitions of disease entities are described, as well as algorithms for further diagnostic work-up and follow-up for monoclonal gammopathy, depending on the risk of progression. Therapeutic strategies against multiple myeloma are presented...
October 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29326807/heavy-chain-diseases-and-myeloma-associated-fanconi-syndrome-an-update
#4
REVIEW
Roberto Ria, Franco Dammacco, Angelo Vacca
The heavy chain diseases (HCDs) are rare B-cell malignancies characterized by the production of a monoclonal immunoglobulin heavy chain without an associated light chain. There are three types of HCD, defined by the class of immunoglobulin heavy chain produced: IgA (α-HCD), IgG (γ-HCD), and IgM (μ-HCD). Alpha-HCD is the most common and usually occurs as intestinal malabsorption in a young adult from a country of the Mediterranean area. Gamma- and μ-HCDs are rarer and associated with a B-cell non-Hodgkin lymphoma that produces an abnormal Ig heavy chain...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29316245/flow-cytometric-aberrancies-in-plasma-cell-myeloma-and-mgus-correlation-with-laboratory-parameters
#5
Sarika Gupta, Nitin J Karandikar, Timothy Ginader, Andrew M Bellizzi, Carol J Holman
BACKGROUND: Multiparametric flow cytometry (MFC) is a useful tool for diagnosis of plasma cell dyscrasias and assessment of minimal residual disease (MRD) in plasma cell myeloma (PCM). However, the immunophenotypic differences between the clonal plasma cells (PCs) of plasma cell myeloma (PCM) and those of monoclonal gammopathy of undetermined significance (MGUS) as well as the correlation of these flow cytometric markers with pertinent laboratory parameters have not been evaluated. METHODS: We retrospectively identified all newly diagnosed treatment-naive PCM and MGUS patients between 09/2014 and 06/2015 who underwent 10-color flow-cytometric evaluation: CD45, CD38, CD138, cKappa, cLambda, CD19, CD27, CD28, CD56, CD117...
January 6, 2018: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29311715/the-bone-marrow-niche-in-mds-and-mgus-implications-for-aml-and-mm
#6
REVIEW
Irene M Ghobrial, Alexandre Detappe, Kenneth C Anderson, David P Steensma
Several haematological malignancies, including multiple myeloma (MM) and acute myeloid leukaemia (AML), have well-defined precursor states that precede the development of overt cancer. MM is almost always preceded by monoclonal gammopathy of undetermined significance (MGUS), and at least a quarter of all patients with myelodysplastic syndromes (MDS) have disease that evolves into AML. In turn, MDS are frequently anteceded by clonal haematopoiesis of indeterminate potential (CHIP). The acquisition of additional genetic and epigenetic alterations over time clearly influences the increasingly unstable and aggressive behaviour of neoplastic haematopoietic clones; however, perturbations in the bone-marrow microenvironment are increasingly recognized to have key roles in initiating and supporting oncogenesis...
January 9, 2018: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/29296931/bone-disease-in-monoclonal-gammopathy-of-undetermined-significance-results-from-a-screened-population-based-study
#7
Sigrun Thorsteinsdottir, Sigrun H Lund, Ebba K Lindqvist, Marianna Thordardottir, Gunnar Sigurdsson, Rene Costello, Debra Burton, Hlif Steingrimsdottir, Vilmundur Gudnason, Gudny Eiriksdottir, Kristin Siggeirsdottir, Tamara B Harris, Ola Landgren, Sigurdur Y Kristinsson
Previous studies have shown that individuals with monoclonal gammopathy of undetermined significance (MGUS) have an increased risk of fractures, although the underlying mechanisms remain unknown. Our aim was to analyze bone mineral density (BMD), bone volume, and risk of fractures among individuals with MGUS. We performed a screening using the Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study cohort, consisting of 5764 elderly individuals, identifying 300 individuals with MGUS, and 275 with light-chain MGUS...
December 26, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296866/obesity-and-risk-of-monoclonal-gammopathy-of-undetermined-significance-and-progression-to-multiple-myeloma-a-population-based-study
#8
Marianna Thordardottir, Ebba K Lindqvist, Sigrun H Lund, Rene Costello, Debra Burton, Neha Korde, Sham Mailankody, Gudny Eiriksdottir, Lenore J Launer, Vilmundur Gudnason, Tamara B Harris, Ola Landgren, Sigurdur Y Kristinsson
All multiple myeloma (MM) cases are preceded by the premalignant state monoclonal gammopathy of undetermined significance (MGUS). Results from previous studies show a positive association between obesity and MM; however, the association between obesity and MGUS is controversial. The aims were to determine (1) if obesity is associated with an increased risk of MGUS and light-chain MGUS (LC-MGUS) and (2) whether obesity is associated with a higher risk of progression to MM and other lymphoproliferative (LP) diseases...
November 14, 2017: Blood Advances
https://www.readbyqxmd.com/read/29290952/transient-paraproteinemia-after-allogeneic-hematopoietic-stem-cell-transplantation-is-an-underexplored-phenomenon-associated-with-graft-versus-host-disease
#9
Corinne C Widmer, Stefan Balabanov, Urs Schanz, Alexandre P A Theocharides
The clinical and biological relevance of a paraprotein that newly arises after allogeneic hematopoietic stem cell transplantation (allo-HSCT) in non-myeloma patients is unknown. In this study, the incidence, the course, and the clinical impact of paraproteins found after allo-HSCT were investigated in a cohort of 383 non-myeloma patients. Paraproteinemia after allo-HSCT was more frequent (52/383 patients, 14%) than the reported incidence of monoclonal gammopathy of unknown significance (MGUS) in age-matched healthy subjects and, in contrast to MGUS, did not correlate with age...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29281132/monoclonal-gammopathies-electronic-subspecialty-consultation
#10
Nicholas Burwick, Jacob Stein, David A Garcia, Virginia C Broudy, Robert E Richard
IMPORTANCE: Electronic consultation (e-consult) is an important component of care for patients in the Veterans Health Administration who require sub-specialty consultation but not urgent face to face evaluation. Monoclonal gammopathy of undetermined significance (MGUS) is a common reason for e-consult. While often benign, MGUS requires careful evaluation and persistent surveillance over time. OBJECTIVE: To identify areas to improve MGUS care delivery by e-consult...
December 27, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/29250691/nephrotic-syndrome-secondary-to-amyloidosis-in-a-patient-with-monoclonal-gammopathy-with-renal-significance-mgrs
#11
Andrei Niculae, Ileana Peride, Vlad Vinereanu, Daniela Rădulescu, Ovidiu Gabriel Bratu, Bogdan Florin Geavlete, Ionel Alexandru ChecheriŢă
Monoclonal gammopathy with renal significance (MGRS) is a relative new-described entity, diagnosed especially in older patients and deriving from the group with monoclonal gammopathy of undetermined significance (MGUS). Various renal lesions may arise in MGRS, according to the ultrastructural characteristics of the monoclonal immunoglobulin deposition in the kidney, from proliferative glomerulopathies and amyloidosis to light chain proximal tubulopathy and crystal-storing histiocytosis. Although both are considered premalign or non-malignant hematological conditions, kidney involvement in MGRS aggravates the prognosis of the patients and need to be treated aggressively...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/29242101/epigenetic-silencing-of-evl-mir-342-in-multiple-myeloma
#12
Zhenhai Li, Kwan Yeung Wong, Godfrey Chi-Fung Chan, Wee-Joo Chng, Chor Sang Chim
miR-342-3p, localized to 14q32, is a tumor suppressor miRNA implicated in multiple cancers. As the promoter region of its host gene, EVL, is embedded in a CpG island, we postulated that miR-342-3p is an intronic miRNA co-regulated with its host gene by promoter DNA methylation in multiple myeloma (MM). By methylation-specific polymerase chain reaction, verified by quantitative bisulfite pyrosequencing, methylation of EVL/miR-342 was absent in all healthy controls (n = 10) and 12 of 15 (80%) human myeloma cell lines (HMCLs), but partially methylated in 3 of 15 (20%) HMCLs, including KMS-12-PE, OCI-MY5, and RPMI-8226R...
November 23, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29225984/acquired-von-willebrand-disease-associated-with-monoclonal-gammopathy-of-unknown-significance
#13
Sijan Basnet, Catherine Lin, Rashmi Dhital, Izza Mir, Elan Mohanty, Biswaraj Tharu, Sushil Ghimire, Dilli Ram Poudel
We present a case of a 79-year-old male who presented with retroperitoneal hematoma a week after motor vehicle accident. Prior history and family history of bleeding were nonsignificant. His activated partial thromboplastin time was found to be prolonged in the emergency department. Further workup with coagulation studies showed decreased factor VIII, vWF antigen, and vWF:ristocetin cofactor assay, and negative Bethesda assay, indicating acquired von Willebrand disease. Immunofluorescence to find an underlying etiology was suggestive of MGUS...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29183887/how-i-manage-monoclonal-gammopathy-of-undetermined-significance
#14
Ronald S Go, S Vincent Rajkumar
Monoclonal gammopathy of undetermined significance (MGUS) is, in many ways, a unique hematologic entity. Unlike most hematologic conditions in which the diagnosis is intentional and credited to hematologists, the discovery of MGUS is most often incidental and made by non-hematologists. MGUS is considered an obligate precursor to several lymphoplasmacytic malignancies including immunoglobulin light chain amyloidosis, multiple myeloma, and Waldenström macroglobulinemia. Therefore, long-term follow-up is generally recommended...
November 28, 2017: Blood
https://www.readbyqxmd.com/read/29180919/false-positive-immunoassay-for-heparin-induced-thrombocytopenia-in-the-presence-of-monoclonal-gammopathy-a-case-report
#15
Ivana Markovic, Zeljko Debeljak, Bojana Bosnjak, Maja Marijanovic
Heparin induced thrombocytopenia (HIT) is a life-threatening disorder which diagnosis depends on laboratory evaluation. The objective of this report is to present the impact of different laboratory methods for HIT detection on the diagnostic evaluation process. In this case, a 78-year old female patient previously diagnosed with monoclonal gammopathy of undetermined significance (MGUS) was administered with heparin for pulmonary embolism treatment. Patient's initial diagnostic work-up (determination of platelet count and prothrombin time measurement for monitoring of pharmacotherapy) was followed by the clinical estimation of HIT likelihood by "4Ts" score, two immunoassays (ID-PaGIA Heparin/PF4 Antibody Test and ELISA PF4 IgG assay) and one functional test called high-performance liquid chromatography serotonin release assay (HPLC-SRA)...
October 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/29176541/diffuse-peritoneal-and-bowel-wall-infiltration-by-light-chain-al-amyloidosis-with-omental-calcification-mimicking-abdominal-carcinomatosis-an-elderly-female-with-incidental-finding-of-light-chain-monoclonal-gammopathy-of-undetermined-significance-lc-mgus
#16
Shoaib Junejo, Yasir Ali, Sandeep Singh Lubana, Sandeep S Tuli
BACKGROUND Amyloidosis is the extracellular tissue deposition of plasma proteins, which after conformational changes, forms antiparallel beta pleated sheets of fibrils. Amyloid light-chain (AL) is a type of amyloidosis that is due to deposition of proteins derived from immunoglobulin (Ig) light chains. Gastrointestinal tract (GIT) involvement most often found in amyloid A (AA) amyloidosis type. There have been no reports of obstructive GIT AL amyloid patients having monoclonal gammopathy of undetermined significance (MGUS)...
November 25, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29169431/monoclonal-igm-gammopathy-and-waldenstr%C3%A3-m-s-macroglobulinemia
#17
Alexander Grunenberg, Christian Buske
BACKGROUND: 3.2-3.5% of persons over age 50 have a monoclonal gammopathy. Monoclonal gammopathies have many causes, including cancer. 10-20% of monoclonal gammopathies are of isotype IgM. A systematic approach to the differential diagnosis of IgM gammopathies is essential because of the different therapeutic implications of the various underlying conditions. METHODS: This review is based on pertinent publications retrieved by a selective search in PubMed and current guidelines from Germany and abroad...
November 3, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29153091/detection-of-complex-genomic-signatures-associated-with-risk-in-plasma-cell-disorders
#18
Nadine K Berry, Amanda Dixon-McIver, Rodney J Scott, Philip Rowlings, Anoop K Enjeti
Plasma cell disorders (PCD) range from benign to highly malignant disease. The ability to detect risk-stratifying aberrations based on cytogenetic and molecular genetic assays plays an increasing role in therapeutic decision making. In this study, 58 patients were chosen for screening by comparative genomic hybridisation microarray (aCGH) to identify the new high-risk prognostic markers of chromothripsis and chromoanasynthesis. All patients had an unequivocal clinical diagnosis of a plasma cell disorder (plasma cell myeloma (PCM)(n = 51) or monoclonal gammopathy of undetermined significance (MGUS)(n = 7)) and an abnormal FISH result...
December 2017: Cancer Genetics
https://www.readbyqxmd.com/read/29146225/response-comparison-of-multiple-myeloma-and-monoclonal-gammopathy-of-undetermined-significance-to-the-same-anti-myeloma-therapy-a-retrospective-cohort-study
#19
John P Campbell, Jennifer L J Heaney, Sankalp Pandya, Zaheer Afzal, Martin Kaiser, Roger Owen, J Anthony Child, David A Cairns, Walter Gregory, Gareth J Morgan, Graham H Jackson, Chris M Bunce, Mark T Drayson
BACKGROUND: Multiple myeloma is consistently preceded by monoclonal gammopathy of undetermined significance (MGUS), which is usually only treated by a form of anti-multiple myeloma therapy if it is causing substantial disease through deposition of secreted M proteins. However, studies comparing how MGUS and multiple myeloma plasma cell clones respond to these therapies are scarce. Biclonal gammopathy multiple myeloma is characterised by the coexistence of an active multiple myeloma clone and a benign MGUS clone, and thus provides a unique model to assess the responses of separate clones to the same anti-multiple myeloma therapy, in the same patient, at the same time...
November 13, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29137341/clinicopathological-significance-of-the-p16-hypermethylation-in-multiple-myeloma-a-systematic-review-and-meta-analysis
#20
Huiqing Yu, Liejun Yang, Yunfeng Fu, Meng Gao, Ling Tian
It is well known that the loss of function of the p16INK4A gene is mainly caused by the hypermethylation of the p16 gene; however, whether or not the inactivation is associated with the clinical significance of multiple myeloma (MM) remains elusive. A meta-analysis was conducted to quantitatively determine the role of the p16 hypermethylation in the clinical significance of MM. We demonstrated that MM patients show much higher hypermethylation rates on the p16 gene in bone marrow compared to normal individuals, as well as monoclonal gammopathy of undetermined significance (MGUS)...
October 10, 2017: Oncotarget
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