双抗体夹心ELISA法检测嗜酸性粒细胞阳离子蛋白

目的 制备嗜酸性粒细胞阳离子蛋白(eosinophilia cationic protein,ECP)双抗体夹心ELISA法检测试剂盒.方法 葡萄球菌A蛋白亲和层析法纯化抗ECP单克隆抗体,过碘酸钠法进行抗ECP多克隆抗体HRP标记,制备ELISA试剂盒,进行条件优化和实验效能评价,检测过敏性皮肤病患者ECP水平.结果...     

Angiolymphoid hyperplasia with eosinophilia and Kimura's disease coexisting in the same patient: Evidence for a spectrum of disease

The relationship between angiolymphoid hyperplasia with eosinophilia (ALHE) and Kimura's disease has always been contentious. Initially, ALHE and Kimura's disease were thought to be conditions within the same disease spectrum, but it is now widely accepted that they are two separate disease entities. The two lesions may coexist in one patient. Thus, ALHE and Kimura's disease may be different manifestations of the one disease.     

Focal eosinophilic infiltration of the liver,benign or malignant?

Focal eosinophilic infiltration (FEI) of the liver shares imaging characteristics with malignant hepatic lesions but should be suspected when concomitantly observing eosinophilia. While in itself benign, the cause of FEI should be sought and treated.     

Peripheral eosinophilia and eosinophilic gastroenteritis after pediatric liver transplantation

Reports indicate peripheral eosinophilia (PE) and gastrointestinal eosinophilic inflammation can occur after pediatric liver transplantation. The incidence of these conditions, potential risk factors, and the impact of PE and gastrointestinal eosinophilic inflammation on liver transplant outcome were determined in this pediatric liver transplant program. Medical records of liver transplant recipients from 1 to 97 and from 12 to 99 were reviewed. Fifty-seven transplants on 54 patients were performed during the study period. Fifty-three patients were evaluated; all had normal pre-transplantation peripheral eosinophil counts. PE of > 10% developed in 28% of patients. Using this definition, all such identified patients had absolute eosinophil counts of > 350/mm3. History of immediate hypersensitivity did not differ between patients with or without eosinophilia. Gastrointestinal endoscopy and biopsy was performed in 23 patients with gastrointestinal complaints. Of those, six had eosinophilic gastroenteritis and all six had PE. Compared with patients without eosinophilia, those with PE were younger at the time of transplantation (p < 0.05), had more frequent rejection (p < 0.01), were more commonly managed with tacrolimus-based immunosuppression (p < 0.001), and experienced more frequent episodes of detectable EBV viral load (p < 0.04). Patients with eosinophilic gastroenteritis were more frequently retransplanted (p < 0.006). PE associated with symptomatic eosinophilic gastroenteritis is common after pediatric liver transplantation. Age at transplant, frequency of rejection episodes, tacrolimus-based immunosuppression, and EBV viral load may be associated with the development of this condition. There may be higher rates of graft loss in such patients. Whether innate immune responsiveness or an acquired immune dysregulation accounts for these findings merits further evaluation.     

Clinical Characteristics of Angioedema With Eosinophilia

Angioedema with eosinophilia (AE) is a very rare allergy disease, case reports of which have been published sporadically since 1984. Here, we retrospectively analyzed the clinical features of 10 AE patients in Korea. Nine of the 10 subjects were young females, ranging from 23 to 38 years old. Twenty percent of the subjects had episodic-type AE with high serum IgM and eosinophil counts, while 80% were non-episodic type with normal serum IgM levels but high eosinophil counts. All patients had used systemic corticosteroids to control AE. One patient with refractory episodic-type AE was treated with anti-IgE antibody. This is the first study to evaluate the clinical characteristics of AE in a Korean population.     

Systemic mastocytosis with associated myeloproliferative neoplasm with t(8;19)(p12;q13.1) and abnormality of FGFR1: report of a unique case

Systemic mastocytosis is a neoplastic proliferation of mast cells that frequently presents with associated clonal hematological non-mast cell lineage disease. Myeloid and lymphoid neoplasms with abnormalities of the FGFR1 gene are a heterogenous group of rare and aggressive hematopoietic stem cell disorders. About a dozen of chromosome changes involving the FGFR1 gene, presenting as myeloid or lymphoid neoplasms, have been described in the literature. To date, only 2 cases of myeloid and lymphoid neoplasms with abnormalities of the FGFR1 gene have been reported in association with systemic mastocytosis, one with t(8;13) and one with t(8;17) involving the FGFR1 gene. Here we describe another case of myeloproliferative neoplasm with chromosome translocation t(8;19) involving FGFR1 gene associated with systemic mastocytosis.     

Objective assessments of allergic and nonallergic rhinitis in young children

Background:  Allergic and nonallergic rhinitis are common childhood disorders.
Objective:  To study nasal eosinophilia and nasal airway patency in young children with allergic and nonallergic rhinitis to assess the pathology behind such diagnoses.
Methods:  We investigated 255 children at six years of age from the Copenhagen Prospective Study on Asthma in Childhood birth cohort assessing rhinitis history, specific immunoglobulin E relevant to rhinitis symptoms, nasal eosinophilia and nasal airway patency by acoustic rhinometry before and after decongestion. Associations were studied in a multivariate graphical model corrected for gender, height and nasal steroid usage.
Results:  Allergic rhinitis was significantly and directly associated with irreversible nasal airway obstruction (reduced decongested nasal airway patency) ( P  =   0.004), whereas nonallergic rhinitis was not. Both allergic rhinitis ( P  =   0.000) and nonallergic rhinitis ( P  =   0.014) were directly and significantly associated with nasal eosinophilia, but this association was stronger for allergic rhinitis.
Conclusion:  Allergic rhinitis and nonallergic rhinitis are of different pathologies as suggested from their different associations not only to allergy but importantly also to irreversible nasal airway obstruction and eosinophilic inflammation. Allergic rhinitis was significantly associated with nasal eosinophilia and irreversible nasal airway obstruction suggesting chronic inflammation and structural remodeling of the nasal mucosa in children at the age of 6 years. Nonallergic rhinitis exhibited no change in the nasal airway patency, but some nasal mucosal eosinophilia albeit less than children with allergic rhinitis.     

MRI Findings of Eosinophilic Fasciitis

Teaching point: Eosinophilic fasciitis (EF) is a rare sclerodermiform disease characterized by upper- and lower-limbs oedema and hardness, which should be confirmed by skin biopsy and MRI in case of clinical suspicion.