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Eosinophil infiltrate

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https://www.readbyqxmd.com/read/28937540/herpes-simplex-virus-esophagitis-in-immunocompetent-children-a-harbinger-of-eosinophilic-esophagitis
#1
Julia Fritz, Diana Lerner, Mariko Suchi
Herpes simplex virus (HSV) is a common cause of infectious esophagitis. The aim of this retrospective study is to identify comorbid and predisposing conditions and sequelae of HSV esophagitis in immunocompetent children. We reviewed sixteen cases of HSV esophagitis diagnosed from January, 1982 to March, 2016. Five patients were immunosuppressed, 11 were immunocompetent and included in the study. Three (27%) had no other significant medical history. Five patients (45%) had repeat biopsies following their HSV infection which showed eosinophilic infiltrate consistent with current diagnostic criteria of eosinophilic esophagitis (EoE), one of whom had known EoE...
September 20, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28937430/cutaneous-richter-syndrome-mimicking-primary-cutaneous-cd4-positive-small-medium-t-cell-lymphoma-case-report-and-review-of-the-literature
#2
Miguel Rito, José Cabeçadas, Joaninha Costa Rosa, Mariana Cravo, Alistair Robson
Richter syndrome represents the transformation of chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma into an aggressive large B-cell lymphoma. Skin involvement is exceptionally rare, with <20 cases reported and its presence as the first presentation of CLL/small lymphocytic lymphoma, as an isolated skin lesion has never been described. Primary cutaneous CD4-positive small/medium T-cell lymphoma (CD4 PCSM-TCL) characteristically presents with a dense dermal infiltrate consisting primarily of small-/medium-sized pleomorphic T-cells and less than 30% large pleomorphic cells...
September 12, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28933119/-research-on-rat-models-of-acute-liver-injury-with-syndrome-of-liver-depression-and-spleen-deficiency
#3
Na-Na Huang, Xiao-Qian Sun, Qian Yang, Xiao-Yu Li, Rong Sun
This paper aimed to establish animal models which are suitable for the activity found, efficacy evaluation of herbs resistant to acute liver injury with syndrome of liver depression and spleen deficiency and new drug research and development based on corresponding of formula and syndrome. The symptoms that are suitable for evaluating the rat models of acute liver injury with syndrome of liver depression and spleen deficiency were extracted according to the evolution rule of the etiology and pathogenesis in traditional Chinese medicine and the modern pathological mechanism...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28932344/-a-pink-nodule-on-the-face
#4
Amina Kissou, Badredine Hassam
We report the case of a 32-year old female patient, with no notable medical history, requiring dermatology consultation for evaluation of a nodule on her right cheek which had evolved over the past 10 years. Clinical examination showed a reddish dermal-based nodule with a smooth surface. The lesion measured 1cm in diameter and was located at the level of the right cheek (A). There was no adenopathy and the remainder of the clinical examination was normal. The patient underwent skin biopsy which showed tumor proliferation composed of fusiform cells with poorly limited eosinophilic cytoplasm and lightly atypical elongated nuclei without mitosis and with mononuclear inflammatory cell infiltrate at the level of the dermis...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28932055/eosinophilic-ulcer-of-the-tongue-masquerading-as-malignant-ulcer-an-unexplored-distinct-pathology
#5
Kunal Sah, Sunira Chandra, Anil Singh, Shweta Singh
Eosinophilic ulcer (EU) is a rare self-limiting chronic benign ulcerative lesion of the oral mucosa often misdiagnosed as oral malignancy. Its etiopathogenesis is ambiguous, but trauma plays an important role in the development. Microscopically, it is characterized by a polymorphic inflammatory infiltrate with a prominent eosinophilic component and large mononuclear cells extending deep into the submucosa, underlying muscle and salivary glands. We discuss a case of EU in a 55-year-old male, which presented with a symptomatic nonhealing ulcer on the right lateral border of the tongue and was further clinically misdiagnosed as malignant ulcer...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28921511/bone-marrow-ilc2s-a-local-source-of-il-5-in-il-33-driven-eosinophilia
#6
Kristina Johansson, Carina Malmhäll, Patricia Ramos-Ramírez, Madeleine Rådinger
T helper type 2 (TH 2) cells, type 2 innate lymphoid cells (ILC2s) and eosinophil progenitors have previously been described to produce IL-5 in the airways upon allergen provocation or by direct administration of IL-33. Eosinophilic airway inflammation is known to be associated with IL-5-dependent eosinophil development in the bone marrow, however, the source of IL-5 remains unclear. TH cells, ILC2s and CD34(+) progenitors have been proposed to be involved in this process, therefore, we investigated whether these cells are taking part in eosinophilopoiesis by producing IL-5 locally in the bone marrow in IL-33-driven inflammation...
September 16, 2017: Immunology
https://www.readbyqxmd.com/read/28919893/ripk3-fas-associated-death-domain-axis-regulates-pulmonary-immunopathology-to-cryptococcal-infection-independent-of-necroptosis
#7
Zhenzong Fa, Qun Xie, Wei Fang, Haibing Zhang, Haiwei Zhang, Jintao Xu, Weihua Pan, Jinhua Xu, Michal A Olszewski, Xiaoming Deng, Wanqing Liao
Fas-associated death domain (FADD) and receptor interacting protein kinase 3 (RIPK3) are multifunctional regulators of cell death and immune response. Using a mouse model of cryptococcal infection, the roles of FADD and RIPK3 in anti-cryptococcal defense were investigated. Deletion of RIPK3 alone led to increased inflammatory cytokine production in the Cryptococcus neoformans-infected lungs, but in combination with FADD deletion, it led to a robust Th1-biased response with M1-biased macrophage activation. Rather than being protective, these responses led to paradoxical C...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28918228/primary-photosensitization-and-contact-dermatitis-caused-by-malachra-fasciata-jacq-n-v-malvaceae-in-sheep
#8
Valber Onofre de Araújo, Temístocles Soares Oliveira Neto, Sara Vilar Dantas Simões, Thatyana Kelly Ferreira da Silva, Franklin Riet-Correa, Ricardo Barbosa Lucena
Farmers from Paraiba state, Northeast Brazil, claim that Malachra fasciata causes cutaneous lesions in sheep. To test its toxicity the plant was harvested daily and fed ad libitum for 21 days to 3 sheep as the sole food source (# 1-3). An additional sheep (# 4) was maintained as a control. Cutaneous lesions of photosensitization initiated after 7 days and increased continuously over the next 21 days. The dose ingested varied between 129 g/kg to 175 g/kg. Alopecia, hyperemia and crusting were observed in the animals...
September 14, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28913994/mouse-model-of-il-17-dominant-rhinitis-using-polyinosinic-polycytidylic-acid
#9
Jun Sang Bae, Eun Hee Kim, Ji Hye Kim, Ji Hun Mo
Interleukin (IL)-17 plays an important role in rhinitis and the level thereof correlates with the severity of disease. However, no mouse model for IL-17-dominant rhinitis has yet been developed. Our objective was to establish a mouse model of IL-17-dominant rhinitis via intranasal application of polyinosinic-polycytidylic acid (abbreviated as Poly(I:C)). Mice were divided into 6 groups (n=8 for each group); 1) 1 negative control group, 2) 1 positive control group (OVA/alum model), 3) 2 Poly(I:C) groups (10 or 100 μg), and 4) 2 OVA/Poly(I:C) groups (10 or 100 μg)...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28912020/intestinal-dysbiosis-featuring-abundance-of-ruminococcus-gnavus-associates-with-allergic-diseases-in-infants
#10
Huey-Huey Chua, Hung-Chieh Chou, Ya-Ling Tung, Bor-Luen Chiang, Chien-Chia Liao, Hong-Hsing Liu, Yen-Hsuan Ni
BACKGROUND & AIMS: Dysbiosis of the intestinal microbiota has been associated with development of allergies in infants. However, it is not clear what microbes might contribute to this process. We investigated what microbe(s) might be involved in analyses of infant twins and mice. METHODS: We studied fecal specimens prospectively in a twin cohort (n=30) and age-matched singletons (n=14) born at National Taiwan University Children's Hospital, Taipei, Taiwan, from April 2011 to March 2013...
September 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28910970/antibody-therapy-for-the-management-of-severe-asthma-with-eosinophilic-inflammation
#11
Ken Ohta, Hiroyuki Nagase, Maho Suzukawa, Shin Ohta
One of the characteristic features of asthma is chronic airway inflammation typically with eosinophil infiltration. Most asthmatics can be treated successfully with conventional treatment appropriate for their severity, but in some severe cases, asthma cannot be well controlled even with thorough treatment and this condition is known as 'refractory asthma'. To overcome severe refractory asthma, a new therapeutic strategy with biologics has been developed based on the knowledge of molecular mechanisms of airway inflammation in asthma, induced by the condition of high Th2-type responses and activation of eosinophils as well as allergic reactions...
July 1, 2017: International Immunology
https://www.readbyqxmd.com/read/28906408/eosinophilic-gastroenteritis-presenting-as-upper-gastrointestinal-hematoma-and-ulcers-after-endoscopic-biopsy-a-case-report-and-literature-review
#12
REVIEW
Biqin Chen, Zhao Yang, Heng Lu, Cheng Wei, Fangyu Wang, Chang Liu
RATIONALE: Eosinphilic gastroenteritis (EG) is a gastrointestinal disorder characterized by eosinophilic infiltration with various manifestations. The diagnosis is usually confirmed by an endoscopic biopsy, which is considered a safe and routine procedure for the majority. PATIENT CONCERNS: We report a 54-year-old male who was presented with intermittent periumbilical pain and melena, and only revealed verrucous gastritis by endoscopy. DIAGNOSES: The patient's condition worsened two days after the endoscopic biopsy, and another endoscopy found hematoma and ulcers in upper gastrointestinal tract...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28903846/ileocolonic-basidiobolomycosis-in-a-child-an-unusual-fungal-infection
#13
Anjum Saeed, Ahmed Alsarkhy, Mona Al Asmi, Mohammad El Mouzan, Yasin Hamid, Asaad Assiri
Systemic basidiobolomycosis is a rare fungal infection caused by Basidiobolus rararum (B. rararum). The clinical presentation is non-specific and is similar to many gastrointestinal conditions such as Crohn's disease (CD). The most consistent findings of basidiobolomycosis are recurrent abdominal pain, weight loss, fever and peripheral eosinophilia. Most of the patients are diagnosed on surgical resection of the involved region along with compatible histopathological findings like transmural inflammation, granulomas with eosinophilic infiltration (Splendore-Hoeppli phenomenon) and more specifically detection of fungal hyphae on fungal stains...
August 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28902908/histological-assessment-of-granulomas-in-natural-and-experimental-schistosoma-mansoni-infections-using-whole-slide-imaging
#14
Kátia B Amaral, Thiago P Silva, Felipe F Dias, Kássia K Malta, Florence M Rosa, Sócrates F Costa-Neto, Rosana Gentile, Rossana C N Melo
The pathology of schistosomiasis mansoni, a neglected tropical disease of great clinical and socioeconomic importance, results from the parasite eggs that become trapped in host tissues, particularly in the liver and intestines. Continuous antigenic stimulation from these eggs leads to recruitment of inflammatory cells to the sites of infection with formation of periovular granulomas. These complex structures have variable size and composition and are the most striking histopathological feature of schistosomiasis mansoni...
2017: PloS One
https://www.readbyqxmd.com/read/28894445/adipose-tissue-inflammation-induces-b-cell-inflammation-and-decreases-b-cell-function-in-aging
#15
REVIEW
Daniela Frasca, Bonnie B Blomberg
Aging is the greatest risk factor for developing chronic diseases. Inflamm-aging, the age-related increase in low-grade chronic inflammation, may be a common link in age-related diseases. This review summarizes recent published data on potential cellular and molecular mechanisms of the age-related increase in inflammation, and how these contribute to decreased humoral immune responses in aged mice and humans. Briefly, we cover how aging and related inflammation decrease antibody responses in mice and humans, and how obesity contributes to the mechanisms for aging through increased inflammation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28890659/loeffler-endocarditis-a-unique-presentation-of-right-sided-heart-failure-due-to-eosinophil-induced-endomyocardial-fibrosis
#16
Amit Alam, Shankar Thampi, Shahryar G Saba, Rita Jermyn
Loeffler endocarditis is a rare restrictive cardiomyopathy caused by abnormal endomyocardial infiltration of eosinophils, with subsequent tissue damage from degranulation, eventually leading to fibrosis. Although an uncommon entity, it is still a disease with significant morbidity and mortality. Often identified only at late stages, treatment options are limited once fibrosis occurs, usually requiring heart failure medications or surgical intervention. We present a unique case of a woman with remote history of hypereosinophilic syndrome, attributed to treatment of rheumatoid arthritis with infliximab, who presented with symptoms of heart failure refractory to medical management and was found to have Loeffler endocarditis...
2017: Clinical Medicine Insights. Case Reports
https://www.readbyqxmd.com/read/28887522/urban-pm2-5-exacerbates-allergic-inflammation-in-the-murine-lung-via-a-tlr2-tlr4-myd88-signaling-pathway
#17
Miao He, Takamichi Ichinose, Yasuhiro Yoshida, Keiichi Arashidani, Seiichi Yoshida, Hirohisa Takano, Guifan Sun, Takayuki Shibamoto
Nevertheless its mechanism has not been well explained yet, PM2.5 is recognized to exacerbate asthma. In the present study, the roles of toll-like receptor (TLR) 2, TLR4 and MyD88, in exacerbation of allergen-induced lung eosinophilia caused by urban PM2.5 was investigated. TLR2-, TLR4-, MyD88-deficient and WT BALB/c mice were intratracheally challenged with PM2.5 +/- ovalbumin (OVA) four times at 2-week intervals. PM2.5 increased neutrophil numbers and KC in bronchoalveolar lavage fluid and caused slight peribronchiolar inflammation in WT mice...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28886581/skullcapflavone-ii-attenuates-ovalbumin-induced-allergic-rhinitis-through-the-blocking-of-th2-cytokine-production-and-mast-cell-histamine-release
#18
Thi Tho Bui, Chun Hua Piao, Chang Ho Song, Ok Hee Chai
Allergic rhinitis is a common heterogeneous chronic upper airway disorder and is an IgE-mediated inflammation characterized by one or more nasal symptoms such as sneezing, itching, nasal discharge, rhinorrhea, post nasal drainage and nasal blockage. In the present study, the effects of skullcapflavone II (SCFII) on upper airway inflammation, Th2 cytokines, and NF-κB signaling in an ovalbumin (OVA)-induced allergic rhinitis (AR) murine model in vivo were investigated. OVA-induced AR mice increased nasal symptoms, eosinophils and mast cells infiltration into nasal cavity, OVA-specific IgE/IgG1 and histamine in serum, Th2 cytokines including IL-13 and GATA3, and NF-κB signaling in NALF and lung homogenate...
September 5, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28881626/relevance-of-ccl3-ccr5-axis-in-oral-carcinogenesis
#19
Janine Mayra da Silva, Tálita Pollyanna Moreira Dos Santos, Lays Martin Sobral, Celso Martins Queiroz-Junior, Milene Alvarenga Rachid, Amanda E I Proudfoot, Gustavo Pompermaier Garlet, Aline Carvalho Batista, Mauro Martins Teixeira, Andréia Machado Leopoldino, Remo Castro Russo, Tarcília Aparecida Silva
The chemokine CCL3 is a chemotactic cytokine crucial for inflammatory cell recruitment in homeostatic and pathological conditions. CCL3 might stimulate cancer progression by promoting leukocyte accumulation, angiogenesis and tumour growth. The expression of CCL3 and its receptors CCR1 and CCR5 was demonstrated in oral squamous cell carcinoma (OSCC), but their role was not defined. Here, the functions of CCL3 were assessed using a model of chemically induced tongue carcinogenesis with 4-nitroquinoline-1-oxide (4NQO)...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28874963/russell-body-gastritis-with-dutcher-bodies-evaluated-using-magnification-endoscopy
#20
Kenji Yorita, Takehiro Iwasaki, Kunihisa Uchita, Naoto Kuroda, Koji Kojima, Shinichi Iwamura, Yutaka Tsutsumi, Akinobu Ohno, Hiroaki Kataoka
Russell body gastritis (RBG) is an unusual type of chronic gastritis characterized by marked infiltration of Mott cells, which are plasma cells filled with spherical eosinophilic bodies referred to as Russell bodies. It was initially thought that Helicobacter pylori (H. pylori) infection was a major cause of RBG and that the infiltrating Mott cells were polyphenotypic; however, a number of cases of RBG without H. pylori infection or with monoclonal Mott cells have been reported. Thus, diagnostic difficulty exists in distinguishing RBG with monoclonal Mott cells from malignant lymphoma...
August 16, 2017: World Journal of Gastrointestinal Endoscopy
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