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Immunoglobulins

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https://www.readbyqxmd.com/read/28320169/probable-zika-virus-associated-guillain-barr%C3%A3-syndrome-challenges-with-clinico-laboratory-diagnosis
#1
Eliza Miller, Zoe Becker, Daniel Shalev, Christopher T Lee, Comana Cioroiu, Kiran Thakur
A 55year old woman in New York City presented in May 2016 with progressive weakness, ataxia, paresthesia, and areflexia, shortly after returning from the Dominican Republic. Lumbar puncture revealed cytoalbuminological dissociation. Due to her recent travel, Zika-associated Guillain Barré syndrome (GBS) was suspected and she underwent evaluation for recent flavivirus exposure. Zika virus RNA was not detected in serum, but Zika virus immunoglobulin M (IgM) was detected in both serum and cerebrospinal fluid...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320129/immunoglobulin-therapy-in-the-treatment-of-multifocal-motor-neuropathy
#2
REVIEW
Aditya Kumar, Huned S Patwa, Richard J Nowak
Multifocal motor neuropathy (MMN) is a chronic immune-mediated disorder leading to slowly progressive muscle weakness and wasting. Current treatments are aimed at modulating the immune system in order to avoid further decline and to maintain functional status. Intravenous immunoglobulin (IVIg) is widely used in the treatment of immune-mediated disorders and is the only treatment approved for MMN. While patients do remain stable with maintenance IVIg treatment, most patients will slowly deteriorate over many years...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319945/glomerular-proteinuria-predicts-the-severity-of-acute-kidney-injury-in-puumala-hantavirus-induced-tubulointerstitial-nephritis
#3
Paula S Mantula, Tuula K Outinen, Jan P G Clement, Heini S A Huhtala, Ilkka H Pörsti, Antti Vaheri, Jukka T Mustonen, Satu M Mäkelä
BACKGROUND: Puumala virus (PUUV)-induced hemorrhagic fever with renal syndrome is common in many European countries. The typical renal histologic lesion is acute tubulointerstitial nephritis. We examined the type and kinetics of urine protein excretion and prognostic significance of proteinuria for the severity of acute kidney injury (AKI) in acute PUUV infection. METHODS: The amount of dipstick albuminuria at hospital admission was analyzed in 205 patients with acute PUUV infection...
March 21, 2017: Nephron
https://www.readbyqxmd.com/read/28319594/long-term-cardiovascular-autonomic-and-clinical-changes-after-immunoglobulin-g-immunoadsorption-therapy-in-autoimmune-autonomic-ganglionopathy
#4
Franca Barbic, Franca Dipaola, Francesca Andreetta, Enrico Brunetta, Laura Dalla Vecchia, Renato Mantegazza, Raffaello Furlan, Carlo Antozzi
A 63-year-old male was diagnosed with autoimmune autonomic ganglionopathy based on the finding of plasma antibodies to the nicotinic acetylcholine receptor (nAChR) of autonomic ganglia. He complained of mouth and eye dryness, dysphagia, severe constipation, erectile dysfunction, urgency, frequent urination, habitual orthostatic syncope and presyncope. A remarkable symptomatic orthostatic hypotension without changes in heart rate was present. We here describe the 3-year time course of the changes in spectral indices of cardiovascular autonomic control LF/HF and LFSAP, dysautonomia symptoms intensity and anti-nAChR antibodies following repetitive selective immunoadsorptions...
March 17, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28319364/a-new-spin-on-antibody-drug-conjugates-trastuzumab-fulvestrant-colloidal-drug-aggregates-target-her2-positive-cells
#5
Ahil N Ganesh, Christopher Mclaughlin, Da Duan, Brian K Shoichet, Molly S Shoichet
While the formation of colloidal aggregates leads to artifacts in early drug discovery, their composition makes them attrac-tive as nanoparticle formulations for targeted drug delivery as the entire nanoparticle is composed of drug. The typical tran-sient stability of colloidal aggregates has inhibited exploiting this property. To overcome this limitation, we investigated a series of proteins to stabilize colloidal aggregates of the chemotherapeutic, fulvestrant, including: bovine serum albumin, a generic human immunoglobulin G, and trastuzumab, a therapeutic anti-human epidermal growth factor receptor 2 anti-body...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28318591/reduction-of-mycobacterium-avium-ssp-paratuberculosis-in-colostrum-development-and-validation-of-2-methods-one-based-on-curdling-and-one-based-on-centrifugation
#6
M Verhegghe, G Rasschaert, L Herman, K Goossens, L Vandaele, K De Bleecker, G Vlaemynck, M Heyndrickx, J De Block
The aim of this study was to develop and validate 2 protocols (for use on-farm and at a central location) for the reduction of Mycobacterium avium ssp. paratuberculosis (MAP) in colostrum while preserving beneficial immunoglobulins (IgG). The on-farm protocol was based on curdling of the colostrum, where the IgG remain in the whey and the MAP bacteria are trapped in the curd. First, the colostrum was diluted with water (2 volumes colostrum to 1 volume water) and 2% rennet was added. After incubation (1 h at 32°C), the curd was cut and incubated again, after which whey and curd were separated using a cheesecloth...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28318212/multiple-myeloma-diagnosis-and-treatment
#7
Thomas C Michels, Keith E Petersen
Multiple myeloma accounts for 1.6% of all cancer cases and approximately 10% of hematologic malignancies in the United States. In 2015, an estimated 28,850 new cases of multiple myeloma were diagnosed in the United States, and the disease caused more than 11,000 deaths. Patients older than 65 years account for 85% of those diagnosed with multiple myeloma, and there is a twofold increased incidence in blacks compared with whites. Patients may present with bone pain or with symptoms that are often nonspecific, such as nausea, vomiting, malaise, weakness, recurrent infections, and weight loss...
March 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28318044/pathomechanisms-of-anti-cn1a-autoantibodies-in-sporadic-inclusion-body-myositis
#8
Nozomu Tawara, Satoshi Yamashita, Xiao Zhang, Mai Korogi, Ziwei Zhang, Tsukasa Doki, Yoshimasa Matsuo, Shunya Nakane, Yasushi Maeda, Kazuma Sugie, Naoki Suzuki, Masashi Aoki, Yukio Ando
OBJECTIVE: Sporadic inclusion body myositis (sIBM), an intractable progressive muscle disease, frequently occurs in older persons. sIBM pathogenesis may involve protein degradation dysfunction and immune abnormalities. Autoantibodies recognizing cytosolic 5'-nucleotidase 1A (cN1A) were found in plasma and serum from sIBM patients. Whether anti-cN1A autoantibodies play a pathogenic role in sIBM is controversial, however. This study investigated the pathogenic properties of anti-cN1A autoantibodies in sIBM pathogenesis...
March 20, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28317934/dek-is-required-for-homologous-recombination-repair-of-dna-breaks
#9
Eric A Smith, Boris Gole, Nicholas A Willis, Rebeca Soria, Linda M Starnes, Eric F Krumpelbeck, Anil G Jegga, Abdullah M Ali, Haihong Guo, Amom R Meetei, Paul R Andreassen, Ferdinand Kappes, Lisa M Privette Vinnedge, Jeremy A Daniel, Ralph Scully, Lisa Wiesmüller, Susanne I Wells
DEK is a highly conserved chromatin-bound protein whose upregulation across cancer types correlates with genotoxic therapy resistance. Loss of DEK induces genome instability and sensitizes cells to DNA double strand breaks (DSBs), suggesting defects in DNA repair. While these DEK-deficiency phenotypes were thought to arise from a moderate attenuation of non-homologous end joining (NHEJ) repair, the role of DEK in DNA repair remains incompletely understood. We present new evidence demonstrating the observed decrease in NHEJ is insufficient to impact immunoglobulin class switching in DEK knockout mice...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317623/food-allergy-what-we-know-now
#10
REVIEW
Lindsey E Moore, Patricia H Stewart, Richard D deShazo
Food allergy is an adverse immune reaction that occurs reproducibly on exposure to a given food. Prevalence rates of food allergy continue to increase worldwide, sparking continual research efforts in finding a suitable and safe cure. Food avoidance, the current standard of care, can be difficult to achieve. This review aims to provide a broad overview of immunoglobulin E-mediated food allergy, highlighting its epidemiology, masqueraders, immunopathophysiology, clinical presentation, diagnostic work-up and available preventative and treatment strategies...
April 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28317343/clinical-implications-of-serum-n-glycan-profiling-as-a-diagnostic-and-prognostic-biomarker-in-germ-cell-tumors
#11
Takuma Narita, Shingo Hatakeyama, Tohru Yoneyama, Shintaro Narita, Shinichi Yamashita, Koji Mitsuzuka, Toshihiko Sakurai, Sadafumi Kawamura, Tatsuo Tochigi, Ippei Takahashi, Shigeyuki Nakaji, Yuki Tobisawa, Hayato Yamamoto, Takuya Koie, Norihiko Tsuchiya, Tomonori Habuchi, Yoichi Arai, Chikara Ohyama
Serum biomarker monitoring is essential for management of germ-cell tumors (GCT). However, not all GCT are positive for conventional tumor markers. We examined whether serum N-glycan-based biomarkers can be applied for detection and prognosis in patients with GCT. We performed a comprehensive N-glycan structural analysis of sera from 54 untreated GCT patients and 103 age-adjusted healthy volunteers using glycoblotting methods and mass spectrometry. Candidate N-glycans were selected from those with the highest association; cutoff concentration values were established, and an N-glycan score was created based on the number of positive N-glycans present...
March 20, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28317217/effects-of-a-protected-inclusion-of-organic-acids-and-essential-oils-as-antibiotic-growth-promoter-alternative-on-growth-performance-intestinal-morphology-and-gut-microflora-in-broilers
#12
Yanli Liu, Xin Yang, Hongliang Xin, Si Chen, Chengbo Yang, Yulan Duan, Xiaojun Yang
This experiment was conducted to investigate the effects of protected essential oils and organic acids mixture on poultry feeding. A total of 450 1-day-old Cobb 500 chicks were randomly allotted into three treatments with six replicates. Birds were offered a basal diet (C), basal diet with 0.15 g/kg enramycin premix (A) and basal diet with 0.30 g/kg protected essential oils and organic acids mixture product (P). The results showed that protected essential oils and organic acids mixture supplementation reduced average daily feed intake and ratio of feed to gain (F/G) at 22-42 days of age, and F/G during 1-42 days of age also declined (P < 0...
March 20, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28317087/imaging-and-clinicopathological-features-of-nivolumab-related-cholangitis-in-patients-with-non-small-cell-lung-cancer
#13
Hisato Kawakami, Junko Tanizaki, Kaoru Tanaka, Koji Haratani, Hidetoshi Hayashi, Masayuki Takeda, Ken Kamata, Mamoru Takenaka, Masatomo Kimura, Takaaki Chikugo, Takao Sato, Masatoshi Kudo, Akihiko Ito, Kazuhiko Nakagawa
Background Nivolumab demonstrates promising efficacy for the treatment of non-small cell lung cancer and other malignancies. The clinical benefit of nivolumab, however, may be hampered by specific immune-related adverse events (irAEs), and little is known regarding nivolumab-related cholangitis. Methods A computerized search of our clinical database identified 3 metastatic non-small cell lung cancer patients with nivolumab-related cholangitis. All patients were treated with intravenous nivolumab monotherapy (3...
March 20, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28316967/the-role-of-mucosal-immunity-in-the-pathogenesis-of-necrotizing-enterocolitis
#14
REVIEW
Zerina Hodzic, Alexa M Bolock, Misty Good
Necrotizing enterocolitis (NEC) is the most devastating gastrointestinal disease of prematurity. Although the precise cause is not well understood, the main risk factors thought to contribute to NEC include prematurity, formula feeding, and bacterial colonization. Recent evidence suggests that NEC develops as a consequence of intestinal hyper-responsiveness to microbial ligands upon bacterial colonization in the preterm infant, initiating a cascade of aberrant signaling events, and a robust pro-inflammatory mucosal immune response...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28316940/monoclonal-gammopathy-of-renal-significance-diagnostic-workup
#15
REVIEW
Sofia O Correia, Sofia Santos, Jorge Malheiro, António Cabrita, La Salete Martins, Josefina Santos
The clinical spectrum of diseases associated with monoclonal gammopathies is wide and they are most commonly the consequence of renal deposition of monoclonal immunoglobulin or its components. The differential diagnosis is difficult and renal biopsy is essential. To distinguish many of these pathologies is necessary to use techniques that are not always available, even in tertiary central hospitals. This review will discuss the clinical presentation, pathologic features, treatment, prognosis and common diagnostic difficulties of these entities...
March 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28316335/complement-in-anca-associated-vasculitis-mechanisms-and-implications-for-management
#16
REVIEW
Min Chen, David R W Jayne, Ming-Hui Zhao
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a group of potentially life-threatening autoimmune diseases. The main histological feature in the kidneys of patients with AAV is pauci-immune necrotizing crescentic glomerulonephritis with little immunoglobulin and complement deposition in the glomerular capillary walls. The complement system was not, therefore, initially thought to be associated with the development of AAV. Accumulating evidence from animal models and clinical observations indicate, however, that activation of the complement system - and the alternative pathway in particular - is crucial for the development of AAV, and that the complement activation product C5a has a central role...
March 20, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28316003/evaluation-of-the-safety-tolerability-and-pharmacokinetics-of-gammaplex-%C3%A2-10-versus-gammaplex-%C3%A2-5-in-subjects-with-primary-immunodeficiency
#17
Richard L Wasserman, Isaac R Melamed, Mark R Stein, Stephen Jolles, Miranda Norton, James N Moy
PURPOSE: This phase 3, multicenter, open-label, randomized, two-period, crossover bioequivalence trial evaluated the safety, tolerability, and pharmacokinetics of intravenous immunoglobulins (IVIGs) Gammaplex 5% and Gammaplex 10% in 33 adults and 15 children with primary immunodeficiency diseases (PIDs). METHODS: Eligible adults received five Gammaplex 5% infusions followed by five Gammaplex 10% infusions, or vice versa, stratified by a 21- or 28-day dosing regimen...
March 18, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28315218/use-of-humanized-rs-atl8-reporter-system-for-detection-of-allergen-specific-ige-sensitization-in-human-food-allergy
#18
Eman Ali Ali, Ryosuke Nakamura, Franco H Falcone
Allergen-specific Immunoglobulin E (IgE) determination lies at the heart of diagnosis of sensitization to food and other allergens. In the past few years, reporter systems capable of detecting the presence of allergen-specific IgE have been developed by several labs. These rely on humanized rat basophil leukemia cell lines stably transfected with reporter genes such as firefly luciferase. In this chapter, we describe protocols for the use of the RS-ATL8 cell line (IgE cross-linking-induced luciferase expression; EXiLE) in 96-well and 384-well formats...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28315216/protein-microarray-based-ige-immunoassay-for-allergy-diagnosis
#19
Nuzul N Jambari, XiaoWei Wang, Marcos Alcocer
Protein microarray is a miniaturized multi-analyte, solid-phased immunoassay where thousands of immobilized individual protein spots on a microscopic slide bind are bound to specific antibodies (immunoglobulins) from serum samples, which are then detected by fluorescent labeling. The image processing and pattern recognition are then quantitatively analyzed using advanced algorithms. Here, we describe the use of an in-house-produced complex protein microarray containing extracts and pure proteins that has been probed with antibodies present in the horse sera and detection by fluorophore-conjugated antibody and data analysis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28314883/stone-former-urine-proteome-demonstrates-a-cationic-shift-in-protein-distribution-compared-to-normal
#20
Ann M Kolbach-Mandel, Neil S Mandel, Brian R Hoffmann, Jack G Kleinman, Jeffrey A Wesson
Many urine proteins are found in calcium oxalate stones, yet decades of research have failed to define the role of urine proteins in stone formation. This urine proteomic study compares the relative amounts of abundant urine proteins between idiopathic calcium oxalate stone forming and non-stone forming (normal) cohorts to identify differences that might correlate with disease. Random mid-morning urine samples were collected following informed consent from 25 stone formers and 14 normal individuals. Proteins were isolated from urine using ultrafiltration...
March 17, 2017: Urolithiasis
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