نتایج جستجو برای: siga
تعداد نتایج: 836 فیلتر نتایج به سال:
Background Group B Streptococcus (GBS) is a major cause of mortality and morbidity in infants and is associated with transmission from a colonized mother at birth and via infected breastmilk. Although maternal/infant colonization with GBS is common, the majority of infants exposed to GBS remain unaffected. The association between breastmilk immune factors and infant colonization and disease pre...
INTRODUCTION Among sensitized infants, those with high, as compared with low levels, of salivary secretory IgA (SIgA) are less likely to develop allergic symptoms. Also, early colonization with certain gut microbiota, e.g. Lactobacilli and Bifidobacterium species, might be associated with less allergy development. Although animal and in vitro studies emphasize the role of the commensal gut micr...
PURPOSE Immunologic characterization of IgA-committed B-1 and B-2 cells, and unique subsets of T cells isolated from the murine lacrimal gland (LG), the primary exocrine tissue for the ocular surface, which is considered to be a part of the mucosal immune system. METHODS Single cells were obtained from LGs of C57BL/6 mice by the enzyme dissociation method using collagenase type IV. Samples un...
Low levels of secretary IgA (sIgA) have been associated with recurrent upper respiratory tract infection (URTI). Saliva contains approximately 60% sIgA1 and 40% sIgA2 in normal adults. Because sIgA1 is more susceptible to proteases degradation produced by mucosal pathogens, the higher the proportion of sIgA1, may increase the risk of bacterial mucosal infection. The aim of the present study is ...
PURPOSE A retrospective cross-section study to analyze the prevalence of herpes simplex virus-induced keratitis (HSK) among 3,000 patients attending a corneal clinic in South India between 1995 and 1997, and to evaluate laboratory techniques for detecting HSK. METHODS The clinico-virological correlation was studied using herpes simplex virus (HSV) isolation on the Vero cell line, HSV-specific...
The purpose of this study was to a) determine the heart rate variability (HRV) and saliva markers of immunity (salivary immunoglobulin A; sIgA) and stress (salivary alpha-amylase; sAA) responses to chronic training in elite swimmers with a disability; and b) identify the relationships between HRV, sIgA, sAA and training volume. Eight members of a high performance Paralympic swimming program wer...
Hybridomas producing monoclonal immunoglobulin A (IgA) antibodies against Salmonella typhimurium were generated by mucosal immunization of BALB/c mice with attenuated strains of S. typhimurium and subsequent fusion of Peyer's patch lymphoblasts with myeloma cells. To test the role of secretory IgA (sIgA) in protection against Salmonella sp., we analyzed in detail the protective capacity of a mo...
Subunit intranasal vaccines offer the prospect of inducing combined systemic-mucosal immunity against mucosally transmitted infections such as human immunodeficiency virus. However, although human studies have demonstrated the induction of active immunity, secretory immunoglobulin A (sIgA) responses are variable, and no study has demonstrated protection by accepted vaccine-licensing criteria as...
Celiac disease (CD) is an enteropathy resulting from an abnormal immune response to gluten-derived peptides in genetically susceptible individuals. This immune response is initiated by intestinal transport of intact peptide 31-49 (p31-49) and 33-mer gliadin peptides through an unknown mechanism. We show that the transferrin receptor CD71 is responsible for apical to basal retrotranscytosis of g...
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