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https://www.readbyqxmd.com/read/28109128/population-pharmacokinetics-and-pharmacodynamics-of-benralizumab-in-healthy-volunteers-and-patients-with-asthma
#1
B Wang, L Yan, Z Yao, L K Roskos
Benralizumab is a humanized, afucosylated, anti-interleukin-5 receptor α, immunoglobulin G (IgG) 1 κ monoclonal antibody. We developed a population pharmacokinetic (PK)/pharmacodynamic (PD) model for benralizumab by analyzing PK and blood eosinophil count data from two healthy volunteer studies (N = 48) and four studies in patients with asthma (N = 152). Benralizumab PK was dose-proportional and adequately described by a two-compartment model with first-order elimination from the central compartment and first-order absorption from the subcutaneous dosing site...
January 21, 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/28109081/shope-fibroma-in-the-external-ear-canal-of-a-domestic-rabbit
#2
Shawna J
A 5-y-old, intact, 2.5-kg female domestic rabbit was presented because of blood spatter on the wall of its cage and thetoenailsof its right hind limb. Physical examination revealed a red, gelatinous mass that spanned the width of the right vertical ear canal. Radiographic images revealed a soft-tissue opacity at the base of the right ear, which was superimposed over the tympanic bulla and extended to the pinna. A CT scan revealed that the soft-tissue mass was within the vertical and horizontal portions of the right external ear canal and extended to the level of the tympanic membrane, with no bony involvement...
January 20, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28108473/expression-of-the-interleukin-21-and-phosphorylated-extracellular-signal-regulated-kinase-1-2-in-kimura-disease
#3
Qing-Li Chen, Chen-Xi Li, Bo Shao, Zhong-Cheng Gong, Hui Liu, Bin Ling, Keremu Abasi, Lu-Lu Hu, Bing Wang, Xiao-Peng Yin
OBJECTIVE: To investigate the expressions of interleukin (IL)-21 and phosphorylated extracellular signal regulated kinase 1/2 (pERK1/2) in Kimura disease (KD) and to correlate the findings with clinical and prognostic variables. METHODS: Immunohistochemical analysis of IL-21 and pERK1/2 was performed in 18 cases of KD and five gender- and age-matched control samples. Clinical data were extracted and patients followed up for a mean period of 32.1 months. RESULTS: After a mean follow-up period of 32...
January 20, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28108440/autoimmune-hepatitis-and-eosinophilic-granulomatosis-with-polyangiitis-a-rare-association
#4
Saroj Lohani, Salik Nazir, Niranjan Tachamo, Pavani Pagolu
We describe a case of 40-year-old woman who presented to our hospital with symptoms of non-radiating epigastric pain for 4-5 days associated with nausea and vomiting. Her history was significant for asthma with recurrent exacerbations, polyneuropathy and recurrent sinus infections. Liver function tests revealed cholestasis. Antinuclear antibody and antismooth muscle cell antibody were positive. Liver biopsy revealed active chronic hepatitis with cholestasis. A diagnosis of autoimmune hepatitis was made. All other causes of cholestatic jaundice were ruled out...
January 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28108297/the-leukotriene-b4-and-its-receptor-blt1-act-as-critical-drivers-of-neutrophil-recruitment-in-murine-bullous-pemphigoid-like-epidermolysis-bullosa-acquisita
#5
Tanya Sezin, Matthias Krajewski, Adam Wutkowski, Sadegh Mousavi, Lenche Chakievska, Katja Bieber, Ralf J Ludwig, Markus Dahlke, Dirk Rades, Franziska S Schulze, Enno Schmidt, Kathrin Kalies, Yask Gupta, Paul Schilf, Saleh M Ibrahim, Peter König, Dominik Schwudke, Detlef Zillikens, Christian D Sadik
Recruitment of neutrophils and eosinophils into the skin is a hallmark of pemphigoid diseases. The molecular cues regulating granulocyte recruitment into the skin as well as the individual contribution of neutrophils and eosinophils to pemphigoid diseases are, however, poorly understood. The lipid mediator leukotriene B4 (LTB4) is a potent granulocyte chemoattractant and abundant in the skin blister fluid of bullous pemphigoid (BP) patients, but its pathogenic significance is unknown. Using mouse models of (BP)-like epidermolysis bullosa acquisita (EBA) and of BP, we show that LTB4 and its receptor BLT1 act as critical drivers of neutrophil entry into the skin upon antibody deposition at the dermal-epidermal junction...
January 17, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28107868/effect-of-ppar%C3%AE-agonist-rosiglitazone-on-the-secretion-of-th2-cytokine-in-asthma-mice
#6
Ji-Hui Yu, Li Long, Zhi-Xiao Luo, Jie-Ru You
OBJECTIVE: To explore the effect of PPARγ agonist (rosiglitazone) on the secretion of Th2 cytokines and the proportion of immune cell subsets in asthma mice. METHODS: Ovalbumin (OVA)-sensitized mice were used to build asthma models. Those mice were divided into the normal control group, model group and rosiglitazone group. Differences of the changes in lung histopathology of mice in the three groups were observed through hematoxylin and eosin (HE) strain, and the numbers of the total cells, eosinophils and neutrophils in BALF of mice in the three groups were compared...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28107494/protective-roles-for-rgs2-in-a-mouse-model-of-house-dust-mite-induced-airway-inflammation
#7
Tresa George, Matthew Bell, Mainak Chakraborty, David P Siderovski, Mark A Giembycz, Robert Newton
The GTPase-accelerating protein, regulator of G-protein signalling 2 (RGS2) reduces signalling from G-protein-coupled receptors (GPCRs) that signal via Gαq. In humans, RGS2 expression is up-regulated by inhaled corticosteroids (ICSs) and long-acting β2-adrenoceptor agonists (LABAs) such that synergy is produced in combination. This may contribute to the superior clinical efficacy of ICS/LABA therapy in asthma relative to ICS alone. In a murine model of house dust mite (HDM)-induced airways inflammation, three weeks of intranasal HDM (25 μg, 3×/week) reduced lung function and induced granulocytic airways inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/28107076/characterization-of-an-avipoxvirus-from-a-bald-eagle-haliaeetus-leucocephalus-using-novel-consensus-pcr-protocols-for-the-rpo147-and-dna-dependent-dna-polymerase-genes
#8
Alexa A Stephen, Angelique M Leone, David E Toplon, Linda L Archer, James F X Wellehan
A juvenile female bald eagle ( Haliaeetus leucocephalus ) was presented with emaciation and proliferative periocular lesions. The eagle did not respond to supportive therapy and was euthanatized. Histopathologic examination of the skin lesions revealed plaques of marked epidermal hyperplasia parakeratosis, marked acanthosis and spongiosis, and eosinophilic intracytoplasmic inclusion bodies. Novel polymerase chain reaction (PCR) assays were done to amplify and sequence DNA polymerase and rpo147 genes. The 4b gene was also analyzed by a previously developed assay...
December 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28105630/histopathological-features-of-endometritis-eosinophilica-in-mares
#9
Anna Lena Grimm, Heinz-Adolf Schoon, Sandra Schöniger
Equine endometritis eosinophilica (EE) is rarely described and its diagnostic criteria are not defined. The aim of this study was to characterize histological features of EE. A data base (1995-2013) was searched for biopsies with increased eosinophils. This study included all biopsies with this diagnosis and representative biopsies without this record. The definition of equine EE was based on criteria for EE in women and the results of the determination of physiological numbers of eosinophils within the equine endometrium...
January 20, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28105235/impact-of-chemotherapy-on-eosinophilia-associated-advanced-rectal-cancer-a-case-report-and-review-of-the-literature
#10
Maki Inoue, Jun Kadono, Hiroshi Sugita, Toshihiro Nakazono, Shunsuke Motoi, Iwao Kitazono, Yuko Goto, Yoshihiko Fukukura, Makoto Yoshimitsu, Takaharu Misaka, Yutaka Imoto
The present study reports a case of eosinophilia-associated rectal cancer that was successfully stabilized using chemotherapy, and reviews the mechanisms of eosinophilia and the importance of chemotherapy. A 65-year-old man, who had previously been diagnosed with suspected rectal cancer, presented with the chief complaint of melena. Eosinophilia, abnormal blood coagulation, and elevated carcinoembryonic antigen and carbohydrate antigen 19-9 tumor marker levels were observed, and the patient was subsequently diagnosed with advanced rectal cancer accompanied by multiple lymph node metastases that extended from the para-aortic lymph nodes to the left axillary lymph nodes...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105134/increased-circulating-il-9-producing-cd8-t-cells-are-associated-with-eosinophilia-and-high-feno-in-allergic-asthmatics
#11
Wei Wang, Zhen-Shun Cheng, Yi-Fei Chen, Yu-Hui Lin
Allergic asthma is a chronic airway disorder mediated by Th2 cells. It has been shown that IL-9-producing CD8(+) cytotoxic T (Tc9) cells promote the subsequent onset of allergic airway inflammation in mice mediated by abnormal Th2 immunity. Whether Tc9 cells are associated with the immunopathogenesis of asthmatic patients remains unknown. In the present study, peripheral blood mononuclear cells (PBMCs) were separated by Ficoll-Hypaque gradient centrifugation from all subjects. The frequency of Tc9 cells was measured by flow cytometry...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28105129/acute-fibrinous-and-organizing-pneumonia-a-case-report-and-literature-review
#12
Xiao-Yong Xu, Fei Chen, Chen Chen, Hui-Ming Sun, Bei-Lei Zhao
Acute fibrinous and organizing pneumonia (AFOP) is a rare lung disease with distinct histological characteristics that include the diffuse presence of intra-alveolar fibrin, and the absence of eosinophils and hyaline membrane. In the present study, a case of AFOP that was diagnosed by lung biopsy is described. The patient presented with high fever and a cough with expectoration. Computed tomography of the lung showed the presence of bilateral patchy infiltrates, predominantly in the lower lobes. Histopathological examination of lung biopsy from the lower pulmonary lobe confirmed the pathological diagnosis...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28104809/gpnmb-promotes-proliferation-of-developing-eosinophils
#13
Sae Mi Hwang, Jin Hyun Kang, Bo Kyum Kim, Tae Gi Uhm, Hye Jung Kim, Hyune-Hwan Lee, Bert Binas, Il Yup Chung
Glycoprotein non-metastatic melanoma protein B (GPNMB) is a type I transmembrane protein that is expressed in a wide variety of cell types, including hematopoietic lineages. We previously demonstrated that GPNMB is one of the most highly expressed genes at an early and intermediate stage of eosinophil development. We herein examined GPNMB expression and its possible functional effect using cord blood (CB) CD34(+) hematopoietic stem cells differentiating toward eosinophils during a 24-day culture period. Western blot and confocal microscopy analyses showed that GPNMB reached its highest levels at day 12 with most GPNMB-positive cells also expressing major basic protein 1 (MBP1), an eosinophil granule protein...
January 18, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28104354/profound-loss-of-esophageal-tissue-differentiation-in-eosinophilic-esophagitis
#14
M Rochman, J Travers, C E Miracle, M C Bedard, T Wen, N P Azouz, J M Caldwell, K Kc, J D Sherrill, B P Davis, J K Rymer, K M Kaufman, M E Rothenberg
BACKGROUND: A key question in the allergy field is to understand how tissue specific disease is manifested. Eosinophilic esophagitis (EoE) is an emerging tissue specific allergic disease whose pathogenesis remains unclear. OBJECTIVE: Herein, we tested the hypothesis that a defect in tissue specific esophageal genes is an integral part of EoE pathogenesis. METHODS: We interrogated the pattern of expression of esophagus-specific signature genes derived from the Human Protein Atlas in the EoE transcriptome and in EPC2 esophageal epithelial cells...
January 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28103932/biomarkers-of-extracellular-matrix-turnover-are-associated-with-emphysema-and-eosinophilic-bronchitis-in-copd
#15
Asger Reinstrup Bihlet, Morten Asser Karsdal, Jannie Marie Bülow Sand, Diana Julie Leeming, Mustimbo Roberts, Wendy White, Russell Bowler
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is characterized by airflow obstruction and loss of lung tissue mainly consisting of extracellular matrix (ECM). Three of the main ECM components are type I collagen, the main constituent in the interstitial matrix, type VI collagen, and elastin, the signature protein of the lungs. During pathological remodeling driven by inflammatory cells and proteases, fragments of these proteins are released into the bloodstream, where they may serve as biomarkers for disease phenotypes...
January 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28102732/exacerbating-effects-of-pm2-5-in-ova-sensitized-and-challenged-mice-and-the-expression-of-trpa1-and-trpv1-protein-in-lung
#16
Hong Liu, Xinsheng Fan, Naiqian Wang, Yuyan Zhang, Jinghua Yu
OBJECTIVE: To investigate the effects of PM2.5 on asthma-related phenotypes and on the expression of TRPA1, V1 protein in lung in a mouse model of asthma. METHODS: Female Balb/c mice were utilized to establish 28 and 42 day asthma models. Mice were sensitized with OVA and challenged with OVA, OVA plus normal saline (NS), or OVA plus PM2.5 at two doses, 1.6 mg·kg(-1) or 8.0 mg·kg(-1). PM2.5 was administrated by intratracheal instillationwithout anesthesia. 24 hours after the final OVA challenge changes in airway resistance (RI) and lung compliance (Cdyn) in response to acetylcholine chloride (ACH) were evaluated, and blood, bronchoalveolar lavage fluid (BALF) and lung tissue samples were taken...
January 19, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28102118/myeloid-cells-in-asthma
#17
Bart N Lambrecht, Emma K Persson, Hamida Hammad
Asthma is a heterogeneous chronic inflammatory disorder of the airways, and not surprisingly, many myeloid cells play a crucial role in pathogenesis. Antigen-presenting dendritic cells are the first to recognize the allergens, pollutants, and viruses that are implicated in asthma pathogenesis, and subsequently initiate the adaptive immune response by migrating to lymph nodes. Eosinophils are the hallmark of type 2 inflammation, releasing toxic compounds in the airways and contributing to airway remodeling. Mast cells and basophils control both the early- and late-phase allergic response and contribute to alterations in smooth muscle reactivity...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28102062/the-role-of-il-17-in-a-lipopolysaccharide-induced-rhinitis-model
#18
Jun Sang Bae, Ji Hye Kim, Eun Hee Kim, Ji Hun Mo
PURPOSE: Lipopolysaccharide (LPS) is a cell wall component of Gram-negative bacteria and important for pro-inflammatory mediators. This study aimed to establish a rhinitis model using ovalbumin (OVA) and LPS in order to evaluate the role of interleukin (IL)-17 in the pathogenesis of an LPS-induced non-eosionophilic rhinitis model. METHODS: Mice were divided into 4 groups and each group consisted of 10 mice (negative control group, allergic rhinitis model group, 1-μg LPS treatment group, and 10-μg LPS treatment group)...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28102059/v%C3%AE-1%C3%A2-%C2%BA-%C3%AE-%C3%AE-t-cells-are-correlated-with-increasing-expression-of-eosinophil-cationic-protein-and-metalloproteinase-7-in-chronic-rhinosinusitis-with-nasal-polyps-inducing-the-formation-of-edema
#19
Luo Ying Yang, Xia Li, Wen Ting Li, Jian Cong Huang, Zhi Yuan Wang, Zi Zhen Huang, Li Hong Chang, Ge Hua Zhang
PURPOSE: We have found that expression of γδT cells is increased in pathological mucosa of chronic rhinosinusitis with nasal polyps (CRSwNP) compared with normal nasal mucosa. This increase is correlated with the infiltration of eosinophils in CRSwNP. Here, we investigated the expression of γδT cells, inflammation and tissue remodeling factors as well as their probable relationships in different types of chronic rhinosinusitis (CRS) in China. METHODS: A total of 76 surgical tissue samples that included 43 CRSwNP samples (15 eosinophilic and 28 non-eosinophilic), 17 CRS samples without nasal polyps (CRSsNP), and 16 controls were obtained...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28102057/periostin-in-exhaled-breath-condensate-and-in-serum-of-asthmatic-patients-relationship-to-upper-and-lower-airway-disease
#20
Aleksandra Wardzyńska, Joanna S Makowska, Małgorzata Pawełczyk, Aleksandra Piechota-Polańczyk, Marcin Kurowski, Marek L Kowalski
PURPOSE: Periostin is considered a biomarker for eosinophilic airway inflammation and have been associated with NSAID-Exacerbated Respiratory Disease (NERD) and chronic rhinosinusitis (CRS). In this study, we aimed to evaluate periostin in exhaled breath condensate (EBC) and in serum of patients with various asthma phenotypes. METHODS: The study included 40 asthmatic patients (22 with NERD) and 17 healthy controls. All the procedures (questionnaire, spirometry, FeNO, nasal swabs, EBC collecting, and blood sampling) were performed on the same day...
March 2017: Allergy, Asthma & Immunology Research
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