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Lymphoproliferative

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https://www.readbyqxmd.com/read/29155103/rasgrp1-mutation-in-autoimmune-lymphoproliferative-syndrome-like-disease
#1
Huawei Mao, Wanling Yang, Sylvain Latour, Jing Yang, Sarah Winter, Jian Zheng, Ke Ni, Minmin Lv, Chenjing Liu, Hongmei Huang, Koon-Wing Chan, Pamela Pui-Wah Lee, Wenwei Tu, Alain Fischer, Yu-Lung Lau
BACKGROUND: Autoimmune lymphoproliferative syndrome (ALPS) is a genetic disorder of lymphocyte homeostasis due to impaired apoptosis. It was initially regarded as a very rare disease, but recent studies show it may be more common than previously thought. Defects in a couple of genes have been identified in a proportion of ALPS patients, but around one third of such patients remain undefined genetically. OBJECTIVE: We described two siblings presenting with ALPS-like disease...
November 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29153068/-atypical-profile-problem-in-serological-diagnosis-of-ebv
#2
Fatma Kamer Varıcı Balcı, Özgen Alpay Özbek, Ayça Arzu Sayıner
Epstein-Barr virus (EBV) is the causative agent of infectious mononucleosis. Burkitt's lymphoma, nasopharyngeal carcinoma and post-transplant lymphoproliferative diseases are also associated with EBV. Diagnosis is frequently based on detection of specific antibodies. Using three parameters (anti VCA-IgM, anti VCA-IgG and anti EBNA-1 IgG), it is possible to define infection status and diagnose acute or past infection. However, sometimes the detection of atypical serological profiles makes it difficult to interpret these results...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29149046/impact-of-a-single-oral-acute-dose-of-aflatoxin-b%C3%A2-on-liver-function-cytokines-and-the-lymphoproliferative-response-in-c57bl-6-mice
#3
Angélica Tieme Ishikawa, Elisa Yoko Hirooka, Paula Leonello Alvares E Silva, Ana Paula Frederico Rodrigues Loureiro Bracarense, Karina Keller Marques da Costa Flaiban, Claudia Yuri Akagi, Osamu Kawamura, Marcio Carvalho da Costa, Eiko Nakagawa Itano
Aflatoxin B₁ (AFB₁), a mycotoxin found in food and feed, exerts harmful effects on humans and animals. The liver is the earliest target of AFB₁, and its effects have been evaluated in animal models exposed to acute or chronic doses. Considering the possibility of sporadic ingestion of AFB₁-contaminated food, this study investigated the impact of a single oral dose of AFB₁ on liver function/cytokines and the lymphoproliferative response in mice. C57BL/6 mice were treated with a single oral AFB₁ dose (44, 442 or 663 μg AFB₁/kg of body weight) on the first day...
November 17, 2017: Toxins
https://www.readbyqxmd.com/read/29146059/oral-lymphomatoid-papulosis-type-c-a-diagnostic-pitfall-often-confused-with-t-cell-lymphoma
#4
Ziv Schwartz, Morton Coleman, Jennifer P Toyohara, Paul D Freedman, Cynthia M Magro
Eosinophilic ulcer of the oral mucosa (EUOM) is a rare, benign, self-resolving lymphoproliferative disorder, which typically presents with asymptomatic to mildly tender ulcers. Histological findings of EUOM are characterized by a polymorphic infiltrate with many eosinophils often extending into the underlying muscle. Although this entity is well documented within the dental literature, it is not well known to physicians. The pathogenesis of the condition is unclear, although reports dating back to 1997 suggest that at least a subset of EUOM represents CD30 positive lymphoproliferative disorder (CD30+ LPD)...
December 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29146005/bone-marrow-adipocytes-in-haematological-malignancies
#5
Ewa Frączak, Mateusz Olbromski, Aleksandra Piotrowska, Natalia Glatzel-Plucińska, Piotr Dzięgiel, Jarosław Dybko, Kazimierz Kuliczkowski, Tomasz Wróbel
Bone marrow adipocytes (BMAs) derived from mesenchymal stem cells (MSC) are an active and significant element of the bone marrow microenvironment. They are involved in metabolic functions, complex interactions with other stromal cells, and in the development and progression of tumours. Currently, there is little data regarding the role of BMAs in haematological malignancies. Due to this, we have attempted to characterise the BMAs in these malignancies in terms of quantity and morphology. Our study included 30 patients aged 22-76 with myelo- (n=17) and lymphoproliferative malignancies (n=13), both with and without bone marrow infiltration...
November 13, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29144099/primary-cutaneous-b-cell-lymphoma-narrative-review-of-the-literature
#6
Vieri Grandi, Silvia Alberti Violetti, Roberta LA Selva, Stefano Cicchelli, Chiara Delfino, Paolo Fava, Maria T Fierro, Alessandro Pileri, Nicola Pimpinelli, Pietro Quaglino, Emilio Berti
Primary Cutaneous B-cell Lymphomas comprehend a group of lymphoproliferative disorders characterized by being monoclonal proliferations of B-cell primarily involving the skin. Despite being recognized as autonomous and distinct clinico-pathologic entities since the late 80s, their classification is still an ongoing matter of debate. At the moment, WHO classification recognizes three disorders: primary cutaneous marginal zone lymphoma, primary cutaneous follicle center lymphoma and primary cutaneous diffuse large B-cell lymphoma, leg type...
November 16, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29136262/treatment-of-cutaneous-pseudolymphoma-a-systematic-review
#7
Diana Miguel, Melanie Peckruhn, Peter Elsner
Cutaneous pseudolymphoma (CPL) is a reactive polyclonal T- or B-cell lymphoproliferative process. CPL may appear as localized or disseminated skin lesions. While most cases of CPL are idiopathic, they may also occur as a response to, for example, contact dermatitis, arthropod reactions, and bacterial infections. CPL can be classified based on its clinical features, but all variants have similar histopathological patterns of either predominantly B-cell infiltrates, T-cell infiltrates, or mixed T/B-cell infiltrates...
November 14, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29132393/interferon-%C3%AE-inducible-protein-16-ifi16-is-required-for-the-maintenance-of-epstein-barr-virus-latency
#8
Gina Pisano, Arunava Roy, Mairaj Ahmed Ansari, Binod Kumar, Leela Chikoti, Bala Chandran
BACKGROUND: Epstein-Barr virus (EBV) exhibits both lytic and latent (Lat. I, II, and III) phases in an infected individual. It's during the latent phase of EBV that all EBV-associated cancers, including Burkitt's lymphoma, nasopharyngeal carcinoma and lymphoproliferative disease arise. Interferon-γ-inducible protein 16 (IFI16) is a well-established innate immune sensor and viral transcriptional regulator involved in response to invading DNA viruses. During latency, IFI16 remains in the nucleus, in part bound to the EBV genome; however, neither its role in EBV lytic cycle or latency has been established...
November 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/29131000/immunodeficiency-associated-lymphoproliferative-disorders
#9
(no author information available yet)
No abstract text is available yet for this article.
2018: Monographs in Clinical Cytology
https://www.readbyqxmd.com/read/29130993/extranodal-lymphoproliferative-processes
#10
(no author information available yet)
No abstract text is available yet for this article.
2018: Monographs in Clinical Cytology
https://www.readbyqxmd.com/read/29128065/flow-cytometry-of-b-cell-neoplasms
#11
REVIEW
Steven H Kroft, Alexandra M Harrington
Flow cytometric evaluation is considered a standard ancillary study for the diagnosis of most B-cell lymphoproliferative disorders. Establishing a neoplastic B-cell population depends on identification of light chain restriction or lack of light chain expression in mature neoplasms and demonstration of aberrant antigen expression in both immature and mature neoplasms, as compared with normal counterparts. The immunophenotypes of the most common B-cell neoplasms are herein described, with an emphasis on their immunophenotypic differential diagnosis and prognostic and therapeutic implications...
December 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29128025/posttransplant-lymphoproliferative-disorder-in-solid-organ-and-hematopoietic-stem-cell-transplantation
#12
REVIEW
Sarah J Nagle, Ran Reshef, Donald E Tsai
Posttransplant lymphoproliferative disorders (PTLD) represent an immunosuppression-related lymphoid or plasmacytic proliferation that occur in the setting of solid organ transplant or allogeneic hematopoietic stem cell transplantation (HSCT). PTLD is a devastating consequence of HSCT and solid organ transplantation with a high morbidity and mortality. Most commonly, PTLD is related to Epstein-Barr virus (EBV) infection, but an increasing number of non-EBV-related cases are occurring. Initial therapy involves withdrawal of immunosuppression with or without antibody or cytotoxic chemotherapy...
December 2017: Clinics in Chest Medicine
https://www.readbyqxmd.com/read/29126177/cd30-expression-in-monomorphic-posttransplant-lymphoproliferative-disorder-diffuse-large-b-cell-lymphoma-correlates-with-greater-regulatory-t-cell-infiltration
#13
Christopher Hartley, James W Vaughan, Jason Jarzembowski, Steven H Kroft, Paul Hosking, Alexandra M Harrington, Horatiu Olteanu
Objectives: CD30 is a protein thought to promote cell proliferation/survival and downregulate the immune response. Twenty percent to 40% of de novo diffuse large B-cell lymphomas (DLBCLs) express CD30, and some patients have been treated with the anti-CD30 agent brentuximab. In the solid organ transplant setting, allograft regulatory T cells (Tregs) have been shown to be modulated via CD30 signaling. Methods: Posttransplant lymphoproliferative disorders (PTLDs) constitute a heterogeneous group of lymphomas, and since CD30 expression has been rarely formally assessed in PTLDs, we analyzed a cohort of PTLDs...
November 8, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29125185/thymus-involvement-in-early-onset-myasthenia-gravis
#14
REVIEW
Mélanie A Cron, Solène Maillard, José Villegas, Frédérique Truffault, Muriel Sudres, Nadine Dragin, Sonia Berrih-Aknin, Rozen Le Panse
It has long been established that the thymus plays a central role in autoimmune myasthenia gravis (MG) because of either thymoma or thymic hyperplasia of lymphoproliferative origin. In this review, we discuss thymic changes associated with thymic hyperplasia and their implications in the development of an autoimmune response against the acetylcholine receptor (AChR).The hyperplastic MG thymus displays all the characteristics of tertiary lymphoid organs (TLOs): neoangiogenic processes with high endothelial venule and lymphatic vessel development, chemokine overexpression favoring peripheral cell recruitment, and ectopic germinal center development...
November 10, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29124835/clinical-characteristics-and-outcomes-of-castleman-disease-a-multicenter-study-of-185-chinese-patients
#15
Xuanye Zhang, Huilan Rao, Xiaolu Xu, Zhihua Li, Bing Liao, Hongmei Wu, Mei Li, Xiuzhen Tong, Juan Li, Qingqing Cai
Castleman disease (CD) is a rare lymphoproliferative disorder. To assess the clinical features, outcomes, and prognostic factors of this disease, we retrospectively analyzed 185 HIV-negative CD patients from four medical centers in southern China. The median age was 37 years. 121 patients (65.4%) were classified as unicentric CD (UCD) and 64 patients (34.6%) were classified as multicentric CD (MCD). The histology subtype was hyaline-vascular for 132 patients (71.4%), plasma cell for 50 patients (27%) and mixed type for 3 patients (1...
November 9, 2017: Cancer Science
https://www.readbyqxmd.com/read/29123652/autoimmune-lymphoproliferative-syndrome-more-than-a-fascinating-disease
#16
REVIEW
Karen Bride, David Teachey
Autoimmune lymphoproliferative syndrome (ALPS) is an inherited syndrome characterized by abnormal lymphocyte survival caused by failure of apoptotic mechanisms to maintain lymphocyte homeostasis. This failure leads to the clinical manifestations of non-infectious and non-malignant lymphadenopathy, splenomegaly, and autoimmune pathology, most commonly, autoimmune cytopenias. Since ALPS was first characterized in the early 1990s, insights in disease biology have improved both diagnosis and management of this syndrome...
2017: F1000Research
https://www.readbyqxmd.com/read/29117463/vasculitis-and-iga-monoclonal-gammopathy-of-cutaneous-significance
#17
L Rousset, F Cordoliani, M Battistella, M Jachiet, E Pillebout, M Rybojad, M Bagot, E Oksenhendler, J-D Bouaziz
IgA vasculitis (Henoch-Schonlein purpura) is a small vessel systemic vasculitis involving IgA immunoglobulin polyclonal activation(1) . Monoclonal gammopathy of cutaneous significance is a subgroup of monoclonal gammopathy with skin disease, without myeloma or lymphoproliferative disorder(2) . We report 3 patients with vasculitis and IgA monoclonal gammopathy of cutaneous significance. Three men, 38, 37 and 50 years old, had a vascular purpura for more than 10 years with partial remission and frequent necrotic flares (Figure 1)...
November 8, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29114932/risk-factors-for-post-transplant-lymphoproliferative-disorder-after-thymoglobulin-conditioned-hematopoietic-cell-transplantation
#18
Amit Kalra, Cameron Roessner, Jennifer Jupp, Tyler Williamson, Raymond Tellier, Ahsan Chaudhry, Faisal Khan, Minakshi Taparia, Victor H Jimenez-Zepeda, Douglas A Stewart, Andrew Daly, Jan Storek
Epstein-Barr virus (EBV)-induced post-transplant lymphoproliferative disorder (PTLD) occurs frequently when rabbit antithymocyte globulin (ATG) is used in hematopoietic cell transplant (HCT) conditioning. We retrospectively studied 554 patients undergoing ATG-conditioned myeloablative HCT. Strategies used to minimize mortality due to PTLD were either therapy of biopsy-diagnosed PTLD in the absence of EBV DNAemia monitoring (n=266) or prompt therapy of presumed PTLD (based on clinical/radiologic signs and high EBV DNAemia, in the setting of weekly EBV DNAemia monitoring) (n=199)...
November 8, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29113425/large-granular-lymphocytosis-after-transplantation
#19
REVIEW
Zhi-Yuan Qiu, Guang-Yu Tian, Zhao Zhang, Ye-Qing Zhang, Wei Xu, Jian-Yong Li
Post-transplant lymphoproliferative disorders (PTLD) represent a heterogeneous group of diseases that occur following transplantation. Large granular lymphocytic (LGL) lymphocytosis is one type of PTLD, ranging from reactive polyclonal self-limited expansion to oligo/monoclonal lymphocytosis or even to overt leukaemia. LGL lymphocytosis in transplant recipients may present as a relatively indolent version of the condition and may be more common than reported, but its natural history and clinical course have not been well described, and the lack of a reliable classification system has limited studies on this disease...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29112013/cancer-therapy-associated-lymphoproliferative-disorders-an-under-recognized-type-of-immunodeficiency-associated-lymphoproliferative-disorder
#20
Sergio Pina-Oviedo, Roberto N Miranda, L Jeffrey Medeiros
We describe the clinicopathologic features of 17 patients who had a hematologic malignancy of various types, were treated, and subsequently developed a lymphoproliferative disorder (LPD). There were 10 men and 7 women with a median age of 59 years (range, 36 to 83 y). The primary hematologic neoplasms included: 5 chronic lymphocytic leukemia/small lymphocytic lymphoma, 3 plasma cell myeloma, 2 acute monoblastic leukemia, and 1 case each of mixed-phenotype acute leukemia, chronic myeloid leukemia, splenic marginal zone lymphoma, follicular lymphoma, mantle cell lymphoma, T-cell prolymphocytic leukemia, and peripheral T-cell lymphoma...
November 3, 2017: American Journal of Surgical Pathology
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