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Eosinophil infiltrate

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https://www.readbyqxmd.com/read/28810531/mir-146a-overexpression-effectively-improves-experimental-allergic-conjunctivitis-through-regulating-cd4-cd25-t-cells
#1
Yang Yang, Xiaolong Yin, Jinglin Yi, Xiaowei Peng
OBJECTIVE: To study the mechanism of miR-146a in the regulation of allergic conjunctivitis (AC) through CD4(+)CD25(-)T cells. METHODS: BALB/c mice were sensitized with ragweed pollen (RW) and alum, and then challenged with RW. Eosinophil infiltration was determined using Giemsa assay. ELISA assay was performed to examine the level of antigen-specific IgE in the serum and cytokine levels in splenocytes. The expression of miR-146a was measured by qRT-PCR. Flow cytometric analysis was used to analyze the percentage of CD4(+)CD25(-)T cells and Tregs...
August 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28803775/pulmonary-function-in-patients-with-eosinophilic-chronic-rhinosinusitis
#2
Kensuke Uraguchi, Shin Kariya, Seiichiro Makihara, Mitsuhiro Okano, Takenori Haruna, Aiko Oka, Rumi Fujiwara, Yohei Noda, Kazunori Nishizaki
OBJECTIVE: There is a close relationship between upper and lower respiratory tract diseases. Chronic rhinosinusitis patients frequently have lung diseases including asthma and chronic obstructive pulmonary disease. Eosinophilic chronic rhinosinusitis is considered a refractory and intractable subtype of chronic rhinosinusitis. However, there has been no report on pulmonary function in patients with eosinophilic chronic rhinosinusitis. The purpose of this study is to examine the pulmonary function in eosinophilic chronic rhinosinusitis patients and non-eosinophilic chronic rhinosinusitis patients, and evaluate clinical factors associated with the pulmonary function of these patients...
August 10, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28803389/gastrointestinal-manifestations-of-stat3-deficient-hyper-ige-syndrome
#3
Manish Arora, Preet Bagi, Anna Strongin, Jennifer Heimall, Xiongce Zhao, Monica G Lawrence, Apurva Trivedi, Carolyn Henderson, Amy Hsu, Martha Quezado, David E Kleiner, Aradhana M Venkatesan, Steven M Holland, Alexandra F Freeman, Theo Heller
OBJECTIVE: STAT 3 deficiency (autosomal dominant hyper immunoglobulin E syndrome (AD-HIES)) is a primary immunodeficiency disorder with multi-organ involvement caused by dominant negative signal transducer and activator of transcription gene 3 (STAT3) mutations. We sought to describe the gastrointestinal (GI) manifestations of this disease. METHODS: Seventy subjects aged five to 60 years with a molecular diagnosis of AD-HIES were evaluated at the National Institutes of Health (NIH)...
August 13, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28793826/toxoplasma-appendicitis-a-once-in-a-lifetime-diagnosis
#4
Anisha M Fernandes, Maheshkumar M Lakhe, Sanjay A Pai
Toxoplasmosis is generally asymptomatic in immunocompetent individuals, but it can be life-threatening in immunocompromised patients. We present a case of a 62-year-old man with clinical features of acute appendicitis. Histology showed a transmural infiltrate of eosinophils. In addition, there were reactive lymphoid follicles with histiocytes in the submucosa and tachyzoites in the muscularis propria. Immunohistochemistry confirmed the diagnosis of toxoplasma appendicitis. Serological evaluation yielded negative results...
August 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28791997/-eosinophilic-granuloma-of-the-parietal-bone-of-an-adult-patient-with-braf-mutation
#5
O V Dolzhansky, E M Paltseva, A A Bukaeva, E V Zaklyazminskaya, I A Spivak, D N Fedorov
The paper describes a case of eosinophilic granuloma of the parietal bone in a 32-year-old man. Histological examination revealed a large number of bean-shaped Langerhans cell histiocytes with lobed nuclei and nuclear grooves. The histiocytes alternated with the foci of obvious eosinophilic infiltration and with eosinophilic microabscesses. There were osteoclast-like multinucleated giant cells, bone resorption, and numerous bone rods covered with osteoblast chains. The histiocytes expressed CD1α, langerin, CD68, S100, and p53 (in 90...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28776450/pharmacological-modulation-of-reactive-oxygen-species-ros-improves-the-airway-hyperresponsiveness-by-shifting-the-th1-response-in-allergic-inflammation-induced-by-ovalbumin
#6
Renata Tiscoski Nesi, Mavina Valente Barroso, Valdirene de Souza Muniz, Ana Carolina de Arantes, Marco Aurélio Martins, Lycia de Brito Gitirana, Josiane Sabbadini Neves, Cláudia Farias Benjamim, Manuella Lanzetti, Samuel Santos Valença
Asthma is an allergic inflammation driven by the Th2 immune response with release of such cytokines as IL-4 and IL-13, which contribute to the airflow limitations and airway hyperresponsiveness (AHR). The involvement of oxidative stress in this process is well-established, but the specific role of the superoxide anion and nitric oxide in asthma are poorly understood. Thus, the aim of this study was to investigate the mechanisms underlying the superoxide anion/nitric oxide production and detoxification in a murine asthma model...
August 4, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28775364/dnp2-ctctla-4-inhibits-german-cockroach-extract-induced-allergic-airway-inflammation-and-hyper-responsiveness-via-inhibition-of-th2-responses
#7
Sangho Lim, Jung Ho Sohn, Ja-Hyun Koo, Jung-Won Park, Je-Min Choi
German cockroaches are major household allergens that can trigger allergic airway inflammatory diseases with sensitive T-cell responses. Although the use of immune modulatory biologics, such as antibodies, to mediate allergic responses has recently been examined, only systemic administration is available because of the size limitations on intranasal administration. Here we utilized a cell-permeable peptide, dNP2, to deliver the cytoplasmic domain of cytotoxic T-lymphocyte antigen-4 (ctCTLA-4) through the airway epithelium to modulate Th2 responses in a German cockroach extract (GCE)-induced allergic airway inflammation model...
August 4, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28771101/natural-helper-cells-mediate-respiratory-syncytial-virus-induced-airway-inflammation-by-producing-type-2-cytokines-in-an-il-33-dependent-manner
#8
Xu Han, Ruonan Chai, Feifei Qi, Song Bai, Yulin Cui, Yuee Teng, Beixing Liu
AIM: Type 2 cytokine production during respiratory virus infection is considered to be linked with asthma exacerbation. As potent Th2 cytokine producers, natural helper (NH) cells play a key role in influenza virus-induced airway hyper-responsiveness. However, it is unclear whether NH cells contribute to respiratory syncytial virus (RSV)-induced airway inflammation, and how the cytokine profile in NH cells is changed during RSV infection. METHODS: BALB/c mice were infected intranasally with RSV...
August 3, 2017: Immunotherapy
https://www.readbyqxmd.com/read/28765816/classification-of-chronic-rhinosinusitis-according-to-a-nasal-polyp-and-tissue-eosinophilia-limitation-of-current-classification-system-for-asian-population
#9
REVIEW
Sung-Woo Cho, Dae Woo Kim, Jeong-Whun Kim, Chul Hee Lee, Chae-Seo Rhee
Chronic rhinosinusitis (CRS) can be classified according to the presence of a nasal polyp (NP): CRS with NP (CRSwNP) and CRS without NP (CRSsNP). CRSwNP has characteristics with high infiltration of tissue eosinophilia with a burst of Th2 inflammatory cytokine. However recent findings in Eastern Asia countries suggest that CRSwNP can be divided according to the presence of tissue eosinophilia. Thus, CRSwNP can be classified into eosinophilic and noneosinophilic. Eosinophilic CRSwNP seems to have different immunological and clinical feature compared to noneosinophilic CRSwNP...
July 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/28760502/-extensive-connective-tissue-nevus-in-children
#10
O Lafargue, S Fraitag, O Boccara, F Comoz, J Rod, C Turgis Mezerette, A Dompmartin
BACKGROUND: Connective tissue nevus (CTN) is a rare condition of the extracellular matrix components that generally presents as papulae of normal skin colour. This condition may be syndromic or sporadic. PATIENTS AND METHODS: We report herein two isolated cases of extensive and infiltrative CTN in children at risk for subsequent joint stiffening. The pathology samples displayed respectively mixed hamartoma and a collagenoma. DISCUSSION: The onset of these lesions is often difficult to establish, since they are usually unnoticeable at first...
July 28, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28758089/diagnosis-of-churg-strauss-syndrome-presented-with-neuroendocrine-carcinoma-a-case-report
#11
Dayun Park, Ho Jun Lee, Kwang Hoon Lee, Bum Sun Kwon, Jin-Woo Park, Ki Yeun Nam, Kyoung Hwan Lee
Churg-Strauss syndrome (CSS) is a rare systemic vasculitis that affect small and medium-sized blood vessels and is accompanied by asthma, eosinophilia, and peripheral neuropathy. This report describes a case of a 52-year-old man who had a history of sinusitis, asthma, and thymus cancer and who had complained of bilateral lower extremity paresthesia and weakness for a month. Peripheral neuropathy was detected by electrodiagnostic studies. Resection of a mediastinal mass, which was diagnosed as thymic neuroendocrine carcinoma, was performed five months before his visit...
June 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28758048/fulminant-mycosis-fungoides-with-tissue-eosinophilia-a-unique-presentation-of-two-cases-with-acro-periorbital-ulceration-and-an-aggressive-clinical-course
#12
David R Pearson, Mayumi Fujita, Whitney A High
We describe two unique cases of fulminant mycosis fungoides with remarkably similar and aggressive clinical courses resulting in death. Both cases demonstrated ulcerated palmar and periorbital plaques and marked tissue eosinophilia, which was confirmed by T-cell receptor γ chain gene rearrangement studies to display identical monoclonality at temporally and anatomically distinct sites. Dense eosinophilic infiltrates on biopsy led to misdiagnosis of inflammatory dermatoses in both instances. While mycosis fungoides may be challenging to diagnose histologically, the presence of eosinophils in progressive disease may herald a poor prognosis and should not exclude the diagnosis...
May 2017: Journal of Molecular Biomarkers & Diagnosis
https://www.readbyqxmd.com/read/28757020/experimental-infection-of-tilapia-lake-virus-tilv-in-nile-tilapia-oreochromis-niloticus-and-red-tilapia-oreochromis-spp
#13
Puntanat Tattiyapong, Worawan Dachavichitlead, Win Surachetpong
Since 2015, a novel orthomyxo-like virus, tilapia lake virus (TiLV) has been associated with outbreaks of disease and massive mortality of cultured Nile and red tilapia (Oreochromis niloticus and Oreochromis spp., respectively) in Thailand. In this study, TiLV was isolated from field samples and propagated in the permissive E-11 cell line, with cytopathic effect (CPE) development within 3-5days post-inoculation. Electron micrographs of infected E-11 cells and fish tissues confirmed the rounded, enveloped virions of 60 to 80nm with characteristics very similar to those of Orthomyxoviridae...
August 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28755856/th9-cells-induce-steroid-resistant-bronchial-hyperresponsiveness-in-mice
#14
Mayumi Saeki, Osamu Kaminuma, Tomoe Nishimura, Noriko Kitamura, Akio Mori, Takachika Hiroi
BACKGROUND: Reduced responsiveness to corticosteroid therapy is a major problem for patients with severe asthma. Although Th9 cells, along with Th2 cells, facilitate antigen-induced airway eosinophilia and bronchial hyperresponsiveness (BHR), the sensitivity of Th9 cell-mediated responses to steroid therapy remains unknown. In this study, we investigated the effect of dexamethasone (Dex) on antigen-induced airway inflammation in Th9 cell-transferred mice. METHODS: Ovalbumin (OVA)-specific Th2 and Th9 cells were polarized from the CD4(+) T cells of DO11...
July 26, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28754324/histopathological-and-clinical-evaluation-of-chronic-spontaneous-urticaria-patients-with-neutrophilic-and-non-neutrophilic-cutaneous-infiltrate
#15
Cíntia Freitas Martins, Karina Lopes Morais, Pamela Figueroa, Natasha Favoretto Dias, Neusa Sakai Valente, Celina Wakisaba Maruta, Paulo Ricardo Criado
BACKGROUND: Chronic urticaria has an expressive prevalence in general population, especially in adults, and is defined by the presence of intermittent hives for six weeks or longer. Our study aims to characterize the histological patterns of chronic spontaneous urticaria, based on the inflammatory cell infiltrate, and correlate them to laboratory exams. METHODS: It was performed a retrospective analysis of laboratory, histopathology and direct immunofluorescence data of 93 patients with chronic urticaria...
July 25, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28749264/pulmonary-lesions-caused-by-the-lungworm-didelphostrongylus-hayesi-in-the-opossum-didelphis-virginiana-in-colima-mexico
#16
Rubén A López-Crespo, Alfonso López-Mayagoitia, Rafael Ramírez-Romero, Julio Martínez-Burnes, Omar F Prado-Rebolledo, Luis J García-Márquez
Didelphostrongylus hayesi is an important and prevalent pulmonary nematode in the opossum ( Didelphis virginiana ). An in-depth description of the pulmonary lesions caused by this nematode is lacking. The objective of this investigation was to make a detailed account of the gross, subgross, and microscopic changes that occur in the lungs of opossums naturally infected with D. hayesi. Forty-four opossums trapped in the state of Colima, Mexico, were euthanized by an overdose of barbiturates. Following a postmortem examination, the right lung was cut from the main bronchi and placed in a Petri dish containing a saline solution for the detection and identification of live parasites...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28743303/multiorgan-eosinophilic-infiltration-after-initiation-of-clozapine-therapy-a-case-report
#17
Dorota Marchel, Anita L Hart, Patricia Keefer, Jennifer Vredeveld
BACKGROUND: The eosinophilic response to clozapine is well described in the literature, causing a variety of responses, from serositis to colitis. However, there are not case reports describing a clozapine-induced marked eosinophilia resulting in multiorgan dysfunction. CASE PRESENTATION: In this case report, we describe a 24 year old Caucasian male who presented with severe systemic eosinophilia resulting in eosinophilic GI tract infiltration, myocarditis, pericardial and pleural effusions with dramatic improvement following drug withdrawal...
July 25, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28743127/a-rare-presentation-of-immunoglobulin-a-nephropathy-acute-kidney-injury
#18
Meric Oruc, Haydar Durak, Serkan Feyyaz Yalin, Nurhan Seyahi, Mehmet Rıza Altıparmak, Sinan Trabulus
BACKGROUND: Acute kidney injury (AKI) is known as an uncommon presentation in immunoglobulin A nephropathy (IgAN). The aim of our study was to analyze the clinical data and biopsy findings in IgAN patients presenting with AKI. METHODS: We performed a retrospective analysis of all subjects who had biopsy-proven IgAN and presented with AKI during June 2002 September 2015. The following data were obtained from medical records. RESULTS: A total of 15 patients of 123 patients (12...
July 26, 2017: Nephron
https://www.readbyqxmd.com/read/28737158/gastric-lesions-in-dolphins-stranded-along-the-eastern-adriatic-coast
#19
Jerko Hrabar, Ivana Bočina, Andrea Gudan Kurilj, Martina Đuras, Ivona Mladineo
Stranded cetaceans are often found with gastric lesions associated with the presence of parasites; most frequently, nematodes of the genus Anisakis and the heterophyd digenean trematode Pholeter gastrophilus. In this study, we present histopathology mainly (but not exclusively) related to these 2 parasite species. Macroscopically, lesions associated with the presence of Anisakis spp. were characterised by the presence of ulcers within the gastric mucosa, while the digenean P. gastrophilus was found within large submucosal fibrotic nodules in the gastric wall...
July 24, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28732001/-eosinophilic-gastroenteritis-a-case-report-and-a-review-of-the-literature
#20
Maryleen Muñoz-Guzmán, Andrea Hernández-Suyo, Joëlle Deriaz-Alvarez, Diana Rodríguez-Hurtado
Eosinophilic gastroenteritis is a rare primary disease distinguished by abundant eosinophilic infiltration of the intestinal mucosa. It concerns variable and nonspecific gastrointestinal symptoms according to the depth of infiltration and may cause severe complications. We reported a case of a 52-year- old woman without prior diseases with 8-month history of diarrhea, abdominal pain, ascites and weight loss. After having performed routine tests and rolled out most common diseases, we get to the diagnosis. Eosinophilic gastroenteritis requires a high suspicion for the diagnosis; because of chronic symptoms, it shows a burden on the nutritional status and quality of life of patients...
April 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
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