Sara Barmettler

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Increased expression of Th22 cytokine IL-22 is a characteristic finding in atopic dermatitis (AD). However, the specific role of IL-22 in the pathogenesis of AD in vivo has yet to be elucidated. Consistent with observations in human AD, IL-22 was significantly increased in the AD skin of mice after epicutaneous sensitization to house dust mite allergen.(More)
X-linked agammaglobulinemia is a primary humoral immunodeficiency characterized by hypogammaglobulinemia and increased susceptibility to infection. Although there is increased awareness of autoimmune and inflammatory complications in X-linked agammaglobulinemia (XLA), the spectrum of gastrointestinal manifestations has not previously been fully explored. We(More)
Pruritus ani is a common distressing problem with numerous possible causes. When locally applied agents trigger irritation or allergic response, skin changes of dermatitis usually accompany the itch. Focal pruritus in the absence of dermatitis is not generally considered to be a manifestation of contact allergy. Furthermore, focal pruritus is not listed(More)
To the Editor: Rituximab is an anti-CD20 chimeric mAb that depletes CD20-expressing B cells in lymphoid tissue and in circulation. Rituximab and other biologic immunotherapies are an important treatment option for autoimmune conditions such as rheumatoid arthritis and for oncologic conditions such as non-Hodgkin’s lymphoma. In patients with these(More)
We present a case of a 24-year-old woman with previously undiagnosed familial haemophagocytic lymphohistiocytosis (HLH). The patient presented with fevers and cough and was found to have pancytopaenia. She underwent an extensive work up and initially met only 3 of 8 criteria for HLH. Owing to high clinical suspicion, soluble CD25 level was sent and HLH2004(More)
Immune dysregulation is a prominent feature of primary immunodeficiency disorders, which commonly manifested as autoimmunity, cytopenias and inflammatory bowel disease. In partial T-cell immunodeficiency disorders, it has been proposed that the imbalance between effector and regulatory T-cells drives the breakdown of peripheral tolerance. While there is no(More)
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