scholarly journals Unlipidated Outer Membrane Protein Omp16 (U-Omp16) from Brucella spp. as Nasal Adjuvant Induces a Th1 Immune Response and Modulates the Th2 Allergic Response to Cow’s Milk Proteins

PLoS ONE ◽  
2013 ◽  
Vol 8 (7) ◽  
pp. e69438 ◽  
Author(s):  
Andrés E. Ibañez ◽  
Paola Smaldini ◽  
Lorena M. Coria ◽  
María V. Delpino ◽  
Lucila G. G. Pacífico ◽  
...  
1995 ◽  
Vol 96 (6) ◽  
pp. 917-923 ◽  
Author(s):  
Outi Vaarala ◽  
Tero Saukkonen ◽  
Erkki Savilahti ◽  
Timo Klemola ◽  
Hans K. Åkerblom

Neonatology ◽  
1997 ◽  
Vol 71 (4) ◽  
pp. 215-223 ◽  
Author(s):  
Olga Martínez-Augustin ◽  
Julio J. Boza ◽  
Juan I. del Pino ◽  
José Lucena ◽  
Antonio Martínez-Valverde ◽  
...  

2012 ◽  
Vol 56 (12) ◽  
pp. 1838-1847 ◽  
Author(s):  
Stéphanie Morin ◽  
Romy Fischer ◽  
Laetitia Przybylski-Nicaise ◽  
Hervé Bernard ◽  
Gérard Corthier ◽  
...  

1970 ◽  
Vol 5 (4) ◽  
pp. 51-60
Author(s):  
José Henrique Pereira Pinto ◽  
Renan Lemos de Toledo ◽  
William do Prado Franquelo

RESUMOIntrodução: Alergia à Proteína do Leite de Vaca (APLV) é uma doença inflamatória secundária à reação imunológica contra uma ou mais proteínas do leite de vaca (LV) que afeta principalmente a faixa pediátrica. A real prevalência é discutida em muitos estudos. As manifestações clínicas dependem do tipo da resposta imunológica, ser IgE mediada ou não. Os sintomas se iniciam por volta dos 06 meses de vida e na maioria dos casos, esse processo alérgico regride, com o paciente desenvolvendo tolerância até a adolescência. Casuística: Relata-se um caso de um paciente do sexo masculino, apresentando desde os 6 meses de idade de anafilaxia e broncoespasmo. Nesta época foi levado em hospitais e ambulatórios sendo diagnosticado e tratado como asma apenas, porém sem sucesso. Aos 18 anos, em consulta com especialista foi diagnosticado com APLV, apesar da dieta de exclusão, apresentou diversas reações anafiláticas, devido a ingestão acidental do alérgeno. Discussão: O paciente iniciou os primeiros sintomas quando houve contato com LV e apresentou teste laboratorial com valores compatíveis a patologia. Segundo a literatura a prevalência de APLV cai para menos de 1% aos 6 anos de vida e está persistência pode estar associada a múltiplos fatores, no caso relatado, o paciente não apresentou tolerância até o presente momento. Conclusão: APLV é uma doença usualmente de criança em que, se estas não adquirirem tolerância, complicações podem perdurar indefinidamente. O Diagnóstico precoce e o manejo adequado desta condição, revela grande importância na qualidade de vida e na prevenção de anafilaxia.Palavras chave: Alergia, Proteína do leite de vaca, Anafilaxia. ABSTRACT Introduction: Allergy to cow's milk (CMPA) is an inflammatory disease Introduction: Allergy to cow's milk (CMPA) is an inflammatory disease secondary to immune response against one or more cow's milk proteins (LV) which primarily affects pediatric patients. The current prevalence is discussed in many studies. The clinical manifestations depend on the type of immune response, being IgE mediated or not. Symptoms start at about 06 months of life and in most cases, the allergic process subsides, and the patient develops tolerance through adolescence. Case Report: We report the case of a male patient, who was presenting, since his 06 months of age, anaphylaxis and bronchospasm. At that time he was taken into hospitals and clinics being diagnosed and treated as asthma, but without success. At 18, in consultation with expert was diagnosed with CMPA, and despite the exclusion diet, presented several anaphylactic reactions due to accidental ingestion of the allergen. Discussion: The patient began the first symptoms when there was contact with LV and presented laboratory test values compatible with the pathology. According to the literature the prevalence of CMPA drops to less than 1% to 6 years of life and this persistence can be associated with multiple factors, in our case, the patient did not develop tolerance to date. Conclusion: CMPA is usually a child disease but ,if they do not acquire tolerance, complications can last indefinitely. Early diagnosis and appropriate management of this condition, reveals a great deal on quality of life and prevention of anaphylaxis. Keywords: Allergy, Cow’s milk protein, Anaphylaxis. 


2012 ◽  
Vol 80 (7) ◽  
pp. 2286-2296 ◽  
Author(s):  
William E. Sause ◽  
Andrea R. Castillo ◽  
Karen M. Ottemann

ABSTRACTThe human pathogenHelicobacter pyloriemploys a diverse collection of outer membrane proteins to colonize, persist, and drive disease within the acidic gastric environment. In this study, we sought to elucidate the function of the host-induced geneHP0289, which encodes an uncharacterized outer membrane protein. We first generated an isogenicH. pylorimutant that lacksHP0289and found that the mutant has a colonization defect in single-strain infections and is greatly outcompeted in mouse coinfection experiments with wild-typeH. pylori. Furthermore, we used protease assays and biochemical fractionation coupled with an HP0289-targeted peptide antibody to verify that the HP0289 protein resides in the outer membrane. Our previous findings showed that theHP0289promoter is upregulated in the mouse stomach, and here we demonstrate thatHP0289expression is induced under acidic conditions in an ArsRS-dependent manner. Finally, we have shown that theHP0289mutant induces greater expression of the chemokine interleukin-8 (IL-8) and the cytokine tumor necrosis factor alpha (TNF-α) in gastric carcinoma cells (AGS). Similarly, transcription of the IL-8 homolog keratinocyte-derived chemokine (KC) is elevated in murine infections with the HP0289 mutant than in murine infections with wild-typeH. pylori. On the basis of this phenotype, we renamed HP0289 ImaA forimmunomodulatoryautotransporter protein. Our work has revealed that genes inducedin vivoplay an important role inH. pyloripathogenesis. Specifically, the outer membrane protein ImaA modulates a component of the host inflammatory response, and thus may allowH. pylorito fine tune the host immune response based on ImaA expression.


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