respiratory tract infections/prolină

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N-benzyloxycarbonyl-L-proline: an in vitro and in vivo inhibitor of prolidase.

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Prolidase deficiency (PD) is a recessive disorder of the connective tissue caused by mutations in the prolidase, a specific peptidase, cleaving the dipeptides with a C-terminal prolyl and hydroxyprolyl residue. PD is a complex syndrome characterized mainly by intractable skin lesions, recurrent

IgA nephropathy and tonsils--an approach from the structure of IgA1 produced by tonsillar lymphocytes.

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Human immunoglobulin A1 (IgA1), which is the predominant subtype to be deposited in glomeruli in IgA nephropathy (IgAN), has a unique mucine-like structure in its hinge region. Namely, it contains O-glycans and proline-rich peptides We previously observed underglycosylation of the hinge region in

Prolidase isoenzymes in the rat: their organ distribution, developmental change and specific inhibitors.

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Lack of prolidase I (PD I) leads to prolidase deficiency, a disease characterized by intractable skin lesions, recurrent respiratory infections, and mental retardation. The present study was undertaken to characterize and determine the physiologic roles of different prolidase isoenzymes. Two

Molecular characterisation of the Mycoplasma cynos haemagglutinin HapA.

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Mycoplasma (M.) cynos is a proven pathogen of dogs causing respiratory infections including pneumonia. We examined 19 M. cynos strains isolated from different organs of dogs in Austria, Denmark and Israel. All strains agglutinated mammalian and chicken erythrocytes. Using erythrocytes of chickens or

A vir-repressed gene of Bordetella pertussis is required for virulence.

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Coordinate regulation of gene expression in Bordetella pertussis is controlled by the products of the vir locus, BvgA and BvgS. In the presence of modulating signals such as MgSO4 and nicotinic acid, expression of vir-activated genes (vag) is reduced, while expression of vir-repressed genes (vrg) is

Molecular and cellular mechanisms of protective immunity to coccidioidomycosis.

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Coccidioides immitis is endemic in the soil of the desert Southwest. It causes a respiratory infection that is usually mild, but can last months and may disseminate beyond the lung. Disseminated infections can be fatal or require life-long therapy. Development of an effective vaccine may be a

Hemolytic uremic syndrome with Mycoplasma pneumoniae infection and membrane cofactor protein mutation – case report.

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Thrombotic microangiopathies (TMA) are rare life-threatening diseases of various etiologies, making the identification of the specific forms and appropriate treatment difficult. The aim of this work is to present the history of a patient with atypical hemolytic uremic syndrome (aHUS) that developed

PRELP Enhances Host Innate Immunity against the Respiratory Tract Pathogen Moraxella catarrhalis.

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Respiratory tract infections are one of the leading causes of mortality worldwide urging better understanding of interactions between pathogens causing these infections and the host. Here we report that an extracellular matrix component proline/arginine-rich end leucine-rich repeat protein (PRELP)

Conformational flexibility in respiratory syncytial virus G neutralizing epitopes.

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Respiratory syncytial virus (RSV) is a top cause of severe lower respiratory tract disease and mortality in infants and the elderly. Currently, no vaccine or effective treatment exists for RSV. The RSV G glycoprotein mediates viral attachment to cells and contributes to pathogenesis by modulating

The cleavage specificity of an IgA1 protease from Haemophilus influenzae.

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Bacterial IgA1 proteases are thought to be important virulence factors in respiratory tract infections. These proteolytic enzymes specifically cleave one of several post-proline peptide bonds within the hinge region of human immunoglobulin A1 (IgA1). Human IgA1 was cleaved with an IgA1 protease

IgA1 molecules produced by tonsillar lymphocytes are under-O-glycosylated in IgA nephropathy.

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BACKGROUND Human serum immunoglobulin A1 (IgA1) has a unique mucine-like structure in its hinge region that contains O-glycans and proline-rich peptides. We previously reported the under-O-glycosylation of the hinge in serum IgA1 and deposited IgA1 in glomeruli (glomerular IgA1) in IgA nephropathy.

Flavones modulate respiratory epithelial innate immunity: Anti-inflammatory effects and activation of the T2R14 receptor.

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Chronic rhinosinusitis has a significant impact on patient quality of life, creates billions of dollars of annual healthcare costs, and accounts for ∼20% of adult antibiotic prescriptions in the United States. Because of the rise of resistant microorganisms, there is a critical need to better

Prolidase deficiency with hyperimmunoglobulin E: a case report.

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Prolidase deficiency is a rare, inherited disorder characterized by ulceration of the skin, mental retardation, and massive urinary excretion of imidodipeptides. Most patients also have recurrent infections, an unusual facial appearance, and splenomegaly. We describe a girl presenting with chronic

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