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https://www.readbyqxmd.com/read/28528047/sclerosing-aortic-and-coronary-arteritis-due-to-igg4-related-disease
#1
Mikael Barbu, Ulf Lindström, Claes Nordborg, Andreas Martinsson, Christian Dworeck, Anders Jeppsson
We present the case of a 55-year-old woman admitted for a coronary artery bypass operation because of three-vessel coronary artery disease based on angiographic findings and clinical symptoms. Unexpected intraoperative findings with diffuse tissue thickening of the ascending aorta and coronary arteries indicated an alternate pathogenesis rather than coronary artery atherosclerosis. Histopathologic findings and clinical evaluation could confirm IgG4-related disease (IgG4-RD). IgG4-RD is a newly recognized fibroinflammatory condition that can present in a variety of organs and is characterized by common histopathologic features...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28526623/allergooncology-ige-and-igg4-mediated-immune-mechanisms-linking-allergy-with-cancer-and-their-translational-implications
#2
EDITORIAL
Erika Jensen-Jarolim, Michelle C Turner, Sophia N Karagiannis
No abstract text is available yet for this article.
May 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28520452/-relapsing-autoimmune-pancreatitis-type-1-case-report
#3
Alena Ondrejková, Bohuslav Kianička, Hana Nechutová, Lukáš Hruška, Ivo Novotný, Miroslav Souček
Autoimmune pancreatitis (AIP) is a rare form of chronic pancreatitis, classified into 2 subtypes - AIP type 1 and AIP type 2. We present a case of a 31-years-old female admitted to our institution with upper abdominal pain and obstructive jaundice. Endoscopic retrograde cholangiopancreatoscopy (ERCP) revealed stenosis of intrapancreatic distal bile duct. Diffuse parenchymal enlargement and typical features of AIP were shown by computed tomography (CT) and endoscopic ultrasonography (EUS). The patient´s serum IgG4 was elevated at 3...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28515723/different-somatic-hypermutation-levels-among-antibody-subclasses-disclosed-by-a-new-next-generation-sequencing-based-antibody-repertoire-analysis
#4
Kazutaka Kitaura, Hiroshi Yamashita, Hitomi Ayabe, Tadasu Shini, Takaji Matsutani, Ryuji Suzuki
A diverse antibody repertoire is primarily generated by the rearrangement of V, D, and J genes and subsequent somatic hypermutation (SHM). Class-switch recombination (CSR) produces various isotypes and subclasses with different functional properties. Although antibody isotypes and subclasses are considered to be produced by both direct and sequential CSR, it is still not fully understood how SHMs accumulate during the process in which antibody subclasses are generated. Here, we developed a new next-generation sequencing (NGS)-based antibody repertoire analysis capable of identifying all antibody isotype and subclass genes and used it to examine the peripheral blood mononuclear cells of 12 healthy individuals...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28514371/-igg4-related-sclerosing-disease-of-the-larynx
#5
D M Mustafaev
IgG4-related sclerosing disease of the larynx (IgG4-SD) is a recently described immunodependent systemic pathology characterized by diffusive or focal inflammatory infiltration of the affected organs and tissues by plasma cells expressing IgG4; it is accompanied by the subsequent development of obliterative phlebitis and fibrosclerosis associated with the increase of the serum IgG4 level. According to the recently published materials, the disease can also develop in the respiratory system. The present article describes the first documented case of IgG4-related sclerosing disease with the isolated lesion of the larynx...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28514287/concurrent-igg4-related-tubulointerstitial-nephritis-and-igg4-myeloperoxidase-anti-neutrophil-cytoplasmic-antibody-positive-crescentic-glomerulonephritis-a-case-report
#6
Tao Su, Li Yang, Zhao Cui, Su-Xia Wang, Ming-Hui Zhao
RATIONALE: IgG4-related disease (IgG4-RD) is a newly recognized systemic disease. The typical pathological finding in the kidney is abundant IgG4-positive plasma cell infiltration with characteristic storiform fibrosis in the interstitium. Antibodies of the IgG4 subclass have been linked to certain autoimmune diseases including antiproteinase 3 (PR3) anti-neutrophil cytoplasmic antibody (ANCA) of the IgG4 subclass. Here, we report a rare case of kidney injury with concurrent typical IgG4-related tubulointerstitial nephritis and IgG4 subclass of myeloperoxidase (MPO) ANCA-positive necrotizing crescentic glomerulonephritis...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28514197/change-of-serum-igg4-in-patients-with-ocular-adnexal-marginal-zone-b-cell-lymphoma-associated-with-igg4-related-ophthalmic-disease-after-treatment
#7
Yuan-Hung Wu, Lei-Chi Wang, Sang-Hue Yen, Wei-Kuang Yu, Shu-Ching Kao, Hui-Chuan Kau, Chieh-Chih Tsai, Catherine Jui-Ling Liu
PURPOSE: To investigate the change of serum IgG4 concentrations correlated with clinical evolution in patients with ocular adnexal marginal zone B cell lymphoma associated with IgG4-related ophthalmic disease (IgG4-ROD). METHODS: Three consecutive patients with histopathologically confirmed ocular adnexal marginal zone B cell lymphoma associated with IgG4-ROD were evaluated. Two patients received radiotherapy and 1 patient received steroid therapy. Treatment outcome was evaluated by clinical symptoms, radiologic examination, and change of serum IgG4 level in these patients...
May 17, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28511923/igg4-aortopathy-an-underappreciated-cause-of-non-infectious-thoracic-aortitis
#8
Victor Aguirre, Catherine Connolly, Robert Stuklis
IgG4 related thoracic aortitis is a recent addition to the differential diagnosis for inflammatory aortic disease - a condition which is often underappreciated until complications arise such as aneurysmal formation or aortic dissection. Currently, IgG4 aortitis remains a post-surgical diagnosis reliant on positive immunohistochemistry findings. Management is guided by the extent of disease involvement, which can be gauged by serum IgG4 levels and radiological findings. Options include surgical resection, corticosteroid therapy and steroid-sparing agents to prevent relapses...
April 19, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28509786/igg4-related-disease-of-the-biliary-tract-and-pancreas-clinical-and-experimental-advances
#9
Lowiek M Hubers, Ulrich Beuers
PURPOSE OF REVIEW: IgG4-related disease (IgG4-RD) is an immune-mediated disease of unknown cause. It predominantly affects the biliary tract [IgG4-associated cholangitis (IAC)] and pancreas [autoimmune pancreatitis (AIP)] of mostly elderly men. Accurate diagnostic tests are lacking. Patients benefit from predniso(lo)ne treatment. However, disease relapse is often seen. This review will address pathophysiological aspects and advances in diagnostic and therapeutic strategies. RECENT FINDINGS: The role of IgG1 and IgG4 in the pathophysiology of IgG4-RD was studied in mice which showed more intense organ damage of pancreas and salivary glands when IgG1 rather than IgG4 of patients with IgG4-RD was injected...
May 13, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28506361/igg4-related-disease-and-the-liver
#10
REVIEW
Jonathan H Chen, Vikram Deshpande
Pathologists are likely to encounter IgG4-related disease in several organ systems. This article focuses on helping pathologists diagnose IgG4-related disease in the hepatobiliary system. Missing the diagnosis can result in unnecessary organ damage and/or unnecessary surgical and cancer therapy. In the liver, tumefactive lesion(s) involving the bile ducts with storiform fibrosis and an IgG4-enriched lymphoplasmacytic infiltrate are highly concerning for IgG4-related disease. The recent identification of oligoclonal populations of T cells and B cells in IgG4-related disease may lead to molecular tests, new therapeutics, and a greater mechanistic understanding of the disease...
June 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/28503707/the-value-of-ultrasound-in-diagnosing-extracranial-large-vessel-vasculitis-compared-to-fdg-pet-ct-a-retrospective-study
#11
Christian Löffler, Johannes Hoffend, Urs Benck, Bernhard K Krämer, Raoul Bergner
Large-vessel vasculitis (LVV) is a group of diseases mainly comprised of giant-cell arteritis (GCA), Takayasu arteritis, and a series of rare diseases like Behçet's disease, IgG4-related disease, infectious aortitis, and other unfrequent entities. Besides clinical and laboratory features, Doppler sonography (DS) can assist in establishing the diagnosis. Its diagnostic sensitivity has been evaluated in various studies, most of them, however, in temporal arteritis (TA) respectively in LVV with involvement of the temporal artery...
May 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28502930/branch-duct-intraductal-papillary-mucinous-neoplasms-of-the-pancreas-involving-type-1-localized-autoimmune-pancreatitis-with-normal-serum-igg4-levels-successfully-diagnosed-by-endoscopic-ultrasound-guided-fine-needle-aspiration-and-treated-without-pancreatic
#12
Shinsuke Koshita, Yutaka Noda, Kei Ito, Yoshihide Kanno, Takahisa Ogawa, Kaori Masu, Yoshiharu Masaki, Hiroaki Kusunose, Toshitaka Sakai, Toji Murabayashi, Sho Hasegawa, Fumisato Kozakai, Jun Horaguchi, Takashi Sawai
We herein report a 68-year-old man with branch duct intraductal papillary mucinous neoplasms of the pancreas (BD-IPMNs) involving type 1 localized autoimmune pancreatitis (AIP) with normal serum IgG4 levels. Although he was referred to our medical center due to suspicion of pancreatic cancer concomitant with BD-IPMNs, endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) revealed a mass suspected of being pancreatic cancer to be type 1 AIP. Steroid administration notably reduced the mass. Although the clinical diagnosis of pancreatic masses in patients with IPMN can be occasionally challenging, performing a pathological examination by EUS-FNA may prevent unnecessary pancreatic surgery in cases of possible AIP...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28501095/imaging-of-igg4-related-disease-of-the-head-and-neck
#13
REVIEW
A Thompson, A Whyte
IgG4-related disease is a systemic, inflammatory disorder typically involving multiple organ systems. Several eponymous conditions described previously in the clinical and radiology literature are now recognised to be part of the IgG4-related disease spectrum. This includes multiple manifestations in the head and neck region, which are the subject of this review. Imaging can occasionally suggest the specific diagnosis of IgG4 disease. More commonly, it will be included in a limited differential diagnosis that requires clarification with the aid of image-guided biopsy...
May 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28500877/clinically-isolated-aortitis-pitfalls-progress-and-possibilities
#14
REVIEW
Ilkay Cinar, He Wang, James R Stone
Non-infectious aortitis may be caused by several distinct systemic rheumatologic diseases. In some patients, aortitis is identified either pathologically or radiologically in the absence of clinical evidence of a systemic vasculitis. By consensus nomenclature, such cases are referred to as clinically isolated aortitis (CIA). Some systemic disorders may initially present as CIA including giant cell arteritis (GCA), IgG4-related disease, infectious aortitis, and granulomatosis with polyangiitis. CIA most commonly occurs in women of European descent over the age of 50 and, thus, mirrors the gender, age, and geographic distribution of GCA...
April 23, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28495645/inflammatory-pseudotumour-of-the-infratemporal-fossa-visualized-with-18-f-fdg-pet-ct
#15
A Cabrera Villegas, B González Juez, J L Llorente Pendás, M C Albornoz Almada, P Santos Holgueras, I E Sanchez Rodriguez
The inflammatory pseudotumour of the head and neck is a benign lesion, extremely rare outside the cranial orbits. A case is presented of an inflammatory pseudotumour not associated with the IgG4-related disease. The pseudotumour was found as a solitary mass in the infratemporal fossa of a young woman who complained of otalgia and hearing loss. A clear image of the lesion was obtained using an (18)F-fluoro-deoxy-glucose ((18)F-FDG) PET. After the histopathological diagnosis, and treatment with corticosteroids, a second (18)F-FDG PET was performed...
May 8, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28493480/sonographic-findings-of-igg4-related-disease-of-the-salivary-glands-case-report-and-review-of-the-literature
#16
Anand K Narayan, Alan Baer, Joel Fradin
IgG4-related disease is a relatively newly described entity with findings that historically have been confused with a variety of other diseases with markedly different treatments and prognoses, including Sjogren's syndrome and MALT lymphoma. We present a case of IgG4-related disease of the salivary glands and review the literature on sonographic findings of IgG4-related disease. By connecting sonographic features of IgG4 disease with common ancillary features of IgG4 disease in other sites (pancreas, hilar lymph nodes, biliary tree, thyroid, and retroperitoneum), radiologists can play a pivotal role in the early diagnosis and identification of IgG4-related disease...
May 11, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28488898/bridging-immunogenicity-assays-for-igg4-therapeutics-mitigating-interference-from-fc-fc-interactions
#17
Michael A Partridge, Uma Vijayam, Elif Kabuloglu Karayusuf, Enoch Shum, Thanoja Sirimanne, John Garlits, Jihua Chen, Albert Torri, Giane Sumner
AIM: A bridging immunogenicity assay for a human IgG4 mAb therapeutic was transferred to an automation system to increase throughput. However, background signal increased five- to six-fold during the 6- to 8-h run. RESULTS: Noncovalent Fc contacts formed between labeled IgG4 drugs in reagent solutions stored during the automation run. This generated substantial background signal, reducing assay sensitivity by approximately sixfold. Fc interactions also significantly impacted the confirmation assay...
May 10, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28487798/orbital-t-cell-lymphoma-with-discrete-enlargements-of-all-extraocular-muscles-bilaterally-in-patient-with-moon-face-countenance
#18
Hideaki Kawakami, Kiyofumi Mochizuki, Hideko Goto, Naoki Watanabe, Takuji Tanaka
Purpose. To report our findings in a case of orbital T-cell lymphoma in which all of the extraocular muscles (EOMs) were bilaterally and discretely enlarged and the patient had a moon face countenance. Case. A 59-year-old woman presented with visual disturbances in her left eye, hyperemia in both eyes, and a moon face countenance. Examinations showed limited upward gaze in the right eye, blepharoptosis, hypertropia, and limited downward and rightward gaze in the left eye. Slit-lamp examination showed only chemosis and hyperemia of both eyes...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/28480769/reactive-follicular-hyperplasia-with-perifollicular-granulomas-and-increased-igg4-positive-plasma-cells
#19
Shan-Chi Yu, Jih-Luh Tang
No abstract text is available yet for this article.
May 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28479893/igg-isotypic-antibodies-to-crude-plasmodium-falciparum-blood-stage-antigen-associated-with-placental-malaria-infection-in-parturient-cameroonian-women
#20
Judith K Anchang-Kimbi, Eric Akum Achidi, Blaise Nkegoum, Joseph-Marie N Mendimi, Eva Sverremark-Ekström, Marita Troye-Blomberg
BACKGROUND: Few studies have reported an association between placental malaria (PM) infection and levels of isotypic antibodies against non-pregnancy associated antigens. OBJECTIVE: To determine and evaluate IgG isotypic antibody levels to crude P. falciparum blood stage in women with and without PM infection. METHODS: Levels of IgG (IgG1-IgG4) and IgM to crude P. falciparum blood stage antigen were measured by ELISA in 271 parturient women...
December 2016: African Health Sciences
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