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https://www.readbyqxmd.com/read/28816552/the-role-of-biopsy-in-lacrimal-gland-inflammation-a-clinicopathologic-study
#1
Panitee Luemsamran, Jack Rootman, Valerie A White, Nariman Nassiri, Manraj K S Heran
PURPOSE: To determine the causes of lacrimal gland inflammation based on histopathology and systemic evaluation. METHODS: This is a retrospective case series study. From the University of British Columbia Orbit Clinic between January 1976 and December 2008, we reviewed the medical records of 60 patients who presented with inflammatory features of the lacrimal gland (i.e., erythema, edema, or tenderness) in which the diagnoses were not possible clinically and on imaging alone...
August 17, 2017: Orbit
https://www.readbyqxmd.com/read/28814389/equine-arteritis-virus-elicits-a-mucosal-antibody-response-in-the-reproductive-tract-of-persistently-infected-stallions
#2
Mariano Carossino, Bettina Wagner, Alan T Loynachan, R Frank Cook, Igor F Canisso, Lakshman Chelvarajan, Casey L Edwards, Bora Nam, John F Timoney, Peter J Timoney, Udeni B R Balasuriya
Equine arteritis virus (EAV) has the ability to establish persistent infection in the reproductive tract of the stallion (carrier) and is continuously shed in its semen. We have recently demonstrated that EAV persists within stromal cells and a subset of lymphocytes in the stallion accessory sex glands in the presence of a significant local inflammatory response. In the present study, we demonstrated that EAV elicits a mucosal antibody response in the reproductive tract during persistent infection with homing of plasma cells into accessory sex glands...
August 16, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28811201/the-unmet-need-in-rheumatology-reports-from-the-targeted-therapies-meeting-2017
#3
Kevin L Winthrop, Vibeke Strand, Désirée van der Heijde, Philip Mease, Mary Crow, Michael Weinblatt, Joan Bathon, Gerd R Burmester, Maxime Dougados, Johnathan Kay, Xavier Mariette, Ronald Van Vollenhoven, Joachim Sieper, Fritz Melchers, Ferdinand C Breedfeld, Joachim Kalden, Josef S Smolen, Daniel E Furst
The 19th annual international Targeted Therapies meeting brought together over 100 leading basic scientists and clinical researchers from around the world in the field of immunology, molecular biology and rheumatology and other specialties. During the meeting, breakout sessions were held consisting of 5 disease-specific groups with 20-40 experts assigned to each group based on clinical or scientific expertise. Specific groups included: rheumatoid arthritis, psoriatic arthritis, axial spondyloarthritis, systemic lupus erythematous, connective tissue diseases (e...
August 12, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28811153/the-design-of-target-specific-antibodies-scfv-by-applying-de-novo-workflow-case-study-on-bmr1-antigen-from-brugia-malayi
#4
Bee Yin Khor, Theam Soon Lim, Rahmah Noordin, Yee Siew Choong
De novo approach was applied to design single chain fragment variable (scFv) for BmR1, a recombinant antigen from Bm17DIII gene which is the primary antigen used for the detection of anti-BmR1 IgG4 antibodies in the diagnostic of lymphatic filariasis. Three epitopes of the BmR1 was previously predicted form an ab initio derived three-dimensional structure. A collection of energetically favourable conformations was generated via hot-spot-centric approach. This resulted in a set of three different scFv scaffolds used to compute the high shape complementary conformations via dock-and-design approach with the predicted epitopes of BmR1...
July 19, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28807714/systemic-igg4-related-disease-in-an-asymptomatic-patient
#5
Fernando A Camporro, Exequiel Bulacio, Ignacio Gutierrez Magaldi
No abstract text is available yet for this article.
August 11, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28806261/unexpected-fibrosing-mediastinitis-shown-on-fdg-pet-ct-in-a-patient-with-igg4-related-disease
#6
Ying Kan, Leilei Yuan, Wei Wang, Jigang Yang
A 66-year-old man presented to our hospital because of abdominal pain for 5 days. A contrast abdominal CT raised the possibility of pancreatic carcinoma. FDG PET/CT showed increased FDG accumulation not only in the pancreas and the retroperitoneum, but also in the posterior mediastinum, which was not typical of pancreatic carcinoma. The patient was subsequently diagnosed having immunoglobulin G4-related disease following the histopathologic examination.
August 12, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28806184/noninfectious-aortitis-what-the-cardiologist-needs-to-know
#7
Ingolf Töpel
PURPOSE OF REVIEW: To sum up a group of noninfectious inflammatory diseases of the aorta and its branches relevant to a cardiologist's daily routine. To describe pathogenetic and clinical advances as well as modern diagnostic tools. To overview most recent treatment options and patient-tailored therapies. To provide an insight in future directions of research. RECENT FINDINGS: Pathophysiology of large vessel vasculitides (LVV) are still poorly defined. At least a certain number of patients with idiopathic periaortitis seem to part of the group of IgG4-related diseases which has implications for therapy...
August 12, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28805160/clinical-implications-of-immunoglobulin-g4-to-graves-ophthalmopathy
#8
Sung Hoon Yu, Jun Goo Kang, Chul Sik Kim, Sung-Hee Ihm, Moon Gi Choi, Hyung Joon Yoo, Seong Jin Lee
BACKGROUND: This study aimed to explore relation of immunoglobulin G4 (IgG4) to clinical and laboratory characteristics of patients newly diagnosed with Graves' disease (GD) without or with Graves' ophthalmopathy (GO), and to analyze association of IgG4 with development and grade of GO in GD patients. METHODS: Sixty-four GD patients and 64 sex- and age-matched euthyroid subjects were enrolled. Serum levels of thyroid hormones, thyroid autoantibodies, immunoglobulin G (IgG) and IgG4 were measured, and ophthalmological and ultrasonographical evaluation was performed...
August 12, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28803798/radiosynthesis-and-preclinical-pet-evaluation-of-89-zr-nivolumab-bms-936558-in-healthy-non-human-primates
#9
Erin L Cole, Joonyoung Kim, David J Donnelly, R Adam Smith, Daniel Cohen, Virginie Lafont, Paul E Morin, Richard Y-C Huang, Patrick L Chow, Wendy Hayes, Samuel Bonacorsi
Cancer immunotherapy, unlike traditional cytotoxic chemotherapeutic treatments, engages the immune system to identify cancer cells and stimulate immune responses. The Programmed Death-1 (PD-1) protein is an immunoinhibitory receptor expressed by activated cytotoxic T-lymphocytes (CTL) that seek out and destroy cancer cells. Multiple cancer types express and upregulate the Programmed Death-Ligand 1 (PD-L1) and 2 (PD-L2) which bind to PD-1 as an immune escape mechanism. Nivolumab is a fully human IgG4 anti-PD-1 monoclonal antibody (mAb) approved for treatment of multiple cancer types...
August 4, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28803167/igg4-related-disease-a-new-etiology-underlying-diffuse-intracranial-dilating-vasculopathy
#10
Evan S Marlin, Davis Dornbos, Daniel S Ikeda, Norman L Lehman, Ciarán J Powers
BACKGROUND: Diffuse intracranial aneurysmal vasculopathy is a rare condition, previously described in patients with human immunodeficiency virus (HIV) infection. IgG4 related disease (IgG4-RD) is a recognized inflammatory disease of systemic organs, leading to fibrosis of connective tissues. It has also been linked to inflammatory dilating aortic aneurysms, coronary vascular disease, hypophysitis, orbital pseudotumor and pachymeningitis. It has not yet been described as a cause of diffuse intracranial dilating vasculopathy...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28801554/delayed-fractional-dose-regimen-of-the-rts-s-as01-malaria-vaccine-candidate-enhances-an-igg4-response-that-inhibits-serum-opsonophagocytosis
#11
Sidhartha Chaudhury, Jason A Regules, Christian A Darko, Sheetij Dutta, Anders Wallqvist, Norman C Waters, Erik Jongert, Franck Lemiale, Elke S Bergmann-Leitner
A recent study of the RTS,S malaria vaccine, which is based on the circumsporozoite protein (CSP), demonstrated an increase in efficacy from 50-60% to 80% when using a delayed fractional dose regimen, in which the standard 0-1-2 month immunization schedule was modified to a 0-1-7 month schedule and the third immunization was delivered at 20% of the full dose. Given the role that antibodies can play in RTS,S-induced protection, we sought to determine how the modified regimen alters IgG subclasses and serum opsonophagocytic activity (OPA)...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800014/large-tumefactive-igg4-related-disease-histologic-cytologic-and-immunohistochemical-features-of-a-very-unusual-case
#12
Israh Akhtar, Veena Shenoy, Majid Khan, Ali G Saad
Immunoglobulin G4-related disease (IgG4-RD) is a regional or systemic multiorgan lymphoplasmacytic inflammatory disease of unknown etiology. It has been described in numerous organs and anatomic locations. Review of the literature shows that when the disease involves the retroperitoneum it causes retroperitoneal fibrosis. Tumefactive IgG4-RD of the retroperitoneum has not been previously reported. In this report, we describe the first case of a large retroperitoneal tumefactive IgG4-RD along with its histologic, cytologic, and immunohistochemical characteristics...
August 9, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28799078/intrachiasmatic-abscess-caused-by-igg4-related-hypophysitis
#13
Georgios F Hadjigeorgiou, Eva Løbner Lund, Lars Poulsgaard, Ulla Feldt-Rasmussen, Åse Krogh Rasmussen, Marianne Wegener, Kåre Fugleholm
INTRODUCTION: Autoimmune hypophysitis is a rare disease of the pituitary, which may affect vision by inflammation and compression of the optic chiasm. However, intrachiasmatic abscess formation has not been previously reported. METHODS: In this study, we report a case of a 29-year-old female with bitemporal hemianopia due to a cystic intrasellar tumor. The patient underwent surgical decompression of the lesion, which was found to be an intrachiasmatic abscess. RESULTS: The histologic findings were consistent with IgG4 hypophysitis...
August 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28796305/electron-microscopic-abnormality-and-therapeutic-efficacy-in-chronic-inflammatory-demyelinating-polyneuropathy-with-anti-neurofascin155-igg4-antibody
#14
Motoi Kuwahara, Hidekazu Suzuki, Nobuyuki Oka, Hidenori Ogata, Satoshi Yanagimoto, Shuji Sadakane, Yuta Fukumoto, Masaki Yamana, Yoshiko Yuhara, Keisuke Yoshikawa, Miyuki Morikawa, Shigeru Kawai, Masahiro Okazaki, Toru Tsujimoto, Jun-Ichi Kira, Susumu Kusunoki
INTRODUCTION: Neurofascin155 (NF155) is a target antigen for autoantibodies in a subset of chronic inflammatory demyelinating polyneuropathy (CIDP). METHODS: We report the cases of 4 patients with anti-NF155 IgG4 antibody-positive CIDP who underwent sural nerve biopsies. RESULTS: All patients were relatively young at onset. Three experienced tremors and 2 had severe ataxia. Although the response to intravenous immunoglobulin (IVIg) was poor in all patients, plasma exchange (PE) and corticosteroids were at least partially effective...
August 10, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28795528/limit-of-detection-and-threshold-for-positivity-of-the-centers-for-disease-control-and-prevention-assay-for-factor-viii-inhibitors
#15
Connie H Miller, Brian Boylan, Amy D Shapiro, Steven R Lentz, Brian M Wicklund
BACKGROUND: The Bethesda assay (BA) for measurement of factor VIII (FVIII) inhibitors called for quantitation of positive inhibitors using dilutions producing 25-75% residual activity (RA), corresponding to 0.4-2.0 Bethesda units, recommending use of "more sensitive methods" for samples with RA closer to 100%. The Nijmegen modification (NBA) changed the reagents used but not these calculations. Some specimens negative by NBA have been shown to have FVIII antibodies detectable by sensitive immunologic methods...
August 10, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28782655/on-the-role-of-igg4-in-inflammatory-conditions-lessons-for-igg4-related-disease
#16
REVIEW
David C Trampert, Lowiek M Hubers, Stan F J van de Graaf, Ulrich Beuers
The pathophysiology of immunoglobulin G4-related disease (IgG4-RD) and its most common manifestations, IgG4-associated (sclerosing) cholangitis and autoimmune pancreatitis, remains largely unknown, but IgG4 is presumably involved. IgG4 is a promiscuous antibody, which could be directly pathogenic, fulfill a protective role, or could just be a fortuitous marker of an aberrant inflammatory response. IgG4 antibodies possess exclusive structural and functional characteristics suggesting anti-inflammatory and tolerance-inducing effects...
August 3, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28780079/antineutrophil-cytoplasmic-antibody-associated-vasculitides-and-igg4-related-disease-a-new-overlap-syndrome
#17
REVIEW
François-Xavier Danlos, Giovanni Maria Rossi, Daniel Blockmans, Giacomo Emmi, Andreas Kronbichler, Stéphane Durupt, Claire Maynard, Luminita Luca, Cyril Garrouste, Bertrand Lioger, Rachel Mourot-Cottet, Robin Dhote, Jean-Benoit Arlet, Thomas Hanslik, Philippe Rouvier, Mikael Ebbo, Xavier Puéchal, Dominique Nochy, Agnès Carlotti, Luc Mouthon, Loïc Guillevin, Augusto Vaglio, Benjamin Terrier
OBJECTIVE: Atypical manifestations have been described in patients with ANCA-associated vasculitides (AAV), such as pachymeningitis, orbital mass or chronic periaortitis. Because these manifestations have been associated to the spectrum of IgG4-related disease (IgG4-RD), we hypothesized that both diseases could overlap. METHODS: We conducted a European retrospective multicenter observational study including patients fulfilling ACR and Chapel Hill criteria for AAV and IgG4-RD Comprehensive Diagnostic Criteria...
August 2, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28777155/a-splenic-igg4-sclerosing-angiomatoid-nodular-transformation-sant-treated-by-hemisplenectomy-a-radiologic-histochemical-and-immunohistochemical-study
#18
Raffaele Gaeta, Francescamaria Donati, Emanuele F Kauffmann, Daniela Campani
INTRODUCTION: Sclerosing angiomatoid nodular transformation (SANT) is a rare benign lesion of unknown origin for which total splenectomy is the standard treatment. CASE PRESENTATION: A 54-year-old man with a history of recurrent pancreatitis, bicuspid aortic valve, and aortic dissection underwent abdominal ultrasound, Computed tomography and magnetic resonance imaging, which revealed a 6-cm hypoechoic splenic mass diagnosed as cavernous hemangioma. Owing to his relevant past history, he was considered eligible for emisplenectomy and not for total excision, which is associated with long-term risks, especially infections...
August 2, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28774276/successful-treatment-of-highly-advanced-immunoglobulin-g4-related-kidney-disease-presenting-renal-mass-like-regions-with-end-stage-kidney-failure-a-case-study
#19
Hiroyuki Ono, Taichi Murakami, Akira Mima, Eriko Shibata, Masanori Tamaki, Sakiya Yoshimoto, Sayo Ueda, Fumi Kishi, Seiji Kishi, Takashi Kawanaka, Motokazu Matsuura, Kojiro Nagai, Hideharu Abe, Masashi Harada, Toshio Doi
BACKGROUND: Immunoglobulin G4-related kidney disease characterized by immunoglobulin G4-positive plasma cell-rich tubulointerstitial nephritis has distinctive serological and radiological findings. Renal prognosis is good because of a good response to glucocorticoids. Here we report a case of successful treatment of highly advanced immunoglobulin G4-related kidney disease presenting renal mass-like regions with end-stage kidney failure. CASE PRESENTATION: A 59-year-old Japanese man was referred to our hospital because of uremia with a creatinine level of 12...
August 3, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28768471/unsuspected-human-immunodeficiency-virus-infection-presenting-as-immunoglobulin-g4-related-lymphadenopathy-a-case-report
#20
Hsing-Tse Yu, Chen-Hsiang Lee, Shun-Chen Huang, Shan-Fu Yu
Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is an immune-mediated condition characterized by infiltration of the involved organs by IgG4-bearing plasma cells. The prevalence of autoimmune diseases, associated with or occurring in patients with human immunodeficiency virus (HIV) infection, has been increasing. We describe a 58-year-old man with an undiagnosed HIV infection, which presented as chronic cervical lymphadenopathy with an elevated serum IgG4 and a very high IgE. Histologically, lymph nodes showed expanded sinusoids and burnt-out germinal centers with increased plasmacytic infiltration and collagen fiber deposition...
January 1, 2017: International Journal of STD & AIDS
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