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1.
Heliyon ; 6(9): e04914, 2020 Sep.
Article in English | MEDLINE | ID: mdl-32995611

ABSTRACT

X-linked Agammaglobulinemia is a primary immunodeficiency caused by mutations in BTK, a tyrosine kinase essential for B lymphocytes differentiation. Patients usually have very low or absent B lymphocytes and are not able to develop humoral specific responses. Here we present a boy, diagnosed with XLA due to a mutation on the promoter region of the gene, whose phenotype is characterised by low percentage of B cells, hypogammaglobulinemia, oscillating neutropenia, antibodies responses to some antigens after vaccination and IgE-mediated allergy. Additional technology as flow cytometry was needed to demonstrate the pathological status of the variant. We focus on the idea that XLA should be suspected in males with B lymphopenia and hypogammaglobulinemia, even if they make humoral specific responses. We also highlight the importance of sequencing BTK's promoter region, as mutations on it can be disease-causing.

3.
Inmunología (1987) ; 35(2): 34-36, abr.-jun. 2016. ilus, tab
Article in Spanish | IBECS | ID: ibc-155228

ABSTRACT

El síndrome hemofagocítico (SH) es una manifestación clínica común de un grupo de enfermedades con hallazgos clínicos y de laboratorio similares, como consecuencia de una hiperactivación antigénica derivada de una respuesta inmune inefectiva, que resulta en una tormenta de citoquinas y con una reacción inflamatoria exagerada, que puede comprometer la vida si no se instaura un tratamiento adecuado[6]. El SH posee una de las principales dificultades diagnósticas y terapéuticas debido a la variabilidad en su presentación clínica, así como el grupo heterogéneo de posibles causas congénitas o adquiridas. Presentamos el caso clínico de un lactante de un mes de vida con antecedente de prematuridad e hydrops fetalis inmune por isoinmunización RhD, con sospecha clínica de síndrome hemofagocítico primario (AU)


No disponible


Subject(s)
Humans , Male , Infant , Hydrops Fetalis/physiopathology , Lymphohistiocytosis, Hemophagocytic/diagnosis , Diagnosis, Differential , Infant, Premature, Diseases/diagnosis , Erythroblastosis, Fetal/diagnosis , Multiple Organ Failure/diagnosis
4.
Inmunología (1987) ; 34(3): 26-28, jul.-sept. 2015. tab, ilus
Article in Spanish | IBECS | ID: ibc-143024

ABSTRACT

Presentamos el caso clínico de una paciente con púrpura trombocitopénica refractaria al tratamiento y defectos en la inmunidad humoral, que, tras el tratamiento con rituximab, presentó marcada hipogammaglobulinemia y clínica infecciosa (AU)


No disponible


Subject(s)
Adolescent , Female , Humans , Purpura, Thrombotic Thrombocytopenic/complications , Purpura, Thrombotic Thrombocytopenic/drug therapy , Antibodies, Monoclonal/therapeutic use , Immunologic Deficiency Syndromes/immunology , Antibodies/immunology , Diagnosis, Differential , Evaluation of Results of Therapeutic Interventions/trends , Reproducibility of Results
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