نتایج جستجو برای: cgd

تعداد نتایج: 685  

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه ملی مهندسی ژنتیک وزیست فناوری - پژوهشکده بیوتکنولوژی 1387

بیماری گرانولوماتوز مزمن (cgd) یک ناهنجاری اولیه دستگاه ایمنی است که در آن فاگوسیت های سیستم ایمنی ذاتی دارای نقص می باشند و ویژگی این بیماری افزایش حساسیت بیماران به عفونت های شدید باکتریایی و قارچی است. بیماری cgd به دلیل موتاسیون در هر یک از چهار ژن کد کننده زیرواحدهای آنزیم nadph اکسیداز فاگوسیت ها ایجاد می گردد، آنزیمی که تولید رادیکال های اکسیژن کشنده میکروبها را به عهده دارد. فرمی از بیم...

Journal: :Journal of immunology 2010
Ruby Fernandez-Boyanapalli Kathleen A McPhillips S Courtney Frasch William J Janssen Mary C Dinauer David W H Riches Peter M Henson Aideen Byrne Donna L Bratton

Immunodeficiency in chronic granulomatous disease (CGD) is well characterized. Less understood are exaggerated sterile inflammation and autoimmunity associated with CGD. Impaired recognition and clearance of apoptotic cells resulting in their disintegration may contribute to CGD inflammation. We hypothesized that priming of macrophages (Ms) with IFN-γ would enhance impaired engulfment of apopto...

Journal: :Pediatrics 2006
Suk See De Ravin Nora Naumann Michael R Robinson Karyl S Barron David E Kleiner Jean Ulrick Julia Friend Victoria L Anderson Dirk Darnell Elizabeth M Kang Harry L Malech

In addition to increased susceptibility to infections in patients with chronic granulomatous disease (CGD), a higher incidence of sterile inflammatory disorders in these patients has been noted. However, sarcoidosis has not been reported previously in CGD. In this report, we describe two patients who have CGD and a disorder consistent with sarcoidosis on the basis of unequivocal clinical-radiog...

Journal: :Infection and immunity 2015
David E Greenberg Daniel E Sturdevant Kimberly R Marshall-Batty Jessica Chu Anthony M Pettinato Kimmo Virtaneva John Lane Bruce L Geller Stephen F Porcella John I Gallin Steven M Holland Kol A Zarember

Polymorphonuclear leukocytes (PMN) from patients with chronic granulomatous disease (CGD) fail to produce microbicidal concentrations of reactive oxygen species (ROS) due to mutations in NOX2. Patients with CGD suffer from severe, life-threatening infections and inflammatory complications. Granulibacter bethesdensis is an emerging Gram-negative pathogen in CGD that resists killing by PMN of CGD...

Journal: :The Journal of clinical investigation 1969
D G Nathan R L Baehner D K Weaver

The leukocytes of patients with chronic granulomatous disease (CGD) may be identified by their failure to reduce Nitro Blue Tetrazolium (NBT) during phagocytosis. This reaction, normally detected in the phagocytic vacuole, is absent or delayed in CGD monocytes and eosinophils as well as in neutrophils, even though sonicates of normal and CGD leukocytes contain equal activities of a cyanide inse...

Journal: :Blood 2010
Ruby Fernandez-Boyanapalli S Courtney Frasch David W H Riches R William Vandivier Peter M Henson Donna L Bratton

Absence of a functional nicotinamide adenine dinucleotide phosphate (NADPH) oxidase predisposes chronic granulomatous disease (CGD) patients to infection, and also to unexplained, exaggerated inflammation. The impaired recognition and removal (efferocytosis) of apoptotic neutrophils by CGD macrophages may contribute to this effect. We hypothesized that peroxisome proliferator-activated receptor...

2000
Fei Li Gilda F. Linton Sudhir Sekhsaria Narda Whiting-Theobald

Chronic granulomatous disease (CGD) can result from any of four single gene defects involving components of the superoxide (0;')-generating phagocyte NADPH oxidase (phox). The phox transmembrane flavocytochrome bsss is composed of two peptides, gpS1Ph" and ~ 2 2 ~ " " . Mutations of gp9lW" cause X-linked CGD, whereas mutations of p22pho" cause one of the three autosomal recessive forms of CGD....

Journal: :Journal of infection in developing countries 2009
Elham Bukhari Abdulkarim Alrabiaah

Chronic granulomatous disease (CGD) is characterized by a defect in phagocytic cells that lead to recurrent bacterial and fungal infections. The etiology of most common fungal infections in CGD are Aspergillus species. Aspergillus nidulans is one of several species of Aspergillus with low pathogenicity. However, it was reported to cause fatal invasive Aspergillosis in patients with CGD. Here we...

Journal: :Blood 2010
Felix Meissner Reinhard A Seger Despina Moshous Alain Fischer Janine Reichenbach Arturo Zychlinsky

Chronic granulomatous disease (CGD) is an inherited disorder characterized by recurrent infections and deregulated inflammatory responses. CGD is caused by mutations in subunits of the NADPH oxidase, an enzyme that generates reactive oxygen species in phagocytes. To elucidate the contribution of the proinflammatory protease caspase-1 to aberrant inflammatory reactions in CGD, we analyzed cells ...

2012
Nikolaus Rieber Andreas Hector Taco Kuijpers Dirk Roos Dominik Hartl

Chronic granulomatous disease (CGD) is the most common inherited disorder of phagocytic functions, caused by genetic defects in the leukocyte nicotinamide dinucleotide phosphate (NADPH) oxidase. Consequently, CGD phagocytes are impaired in destroying phagocytosed microorganisms, rendering the patients susceptible to bacterial and fungal infections. Besides this immunodeficiency, CGD patients su...

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