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Clinical and Developmental Immunology
Volume 2011 (2011), Article ID 248243, 5 pages
http://dx.doi.org/10.1155/2011/248243
Research Article

Prolactin May Not Play a Role in Primary Antiphospholipid (Hughes') Syndrome

Disciplina de Reumatologia, Faculdade de Medicina, Universidade de Sao Paulo, Av. Dr. Arnaldo, No. 455, 3 Andar, Sala 3190, 01246-903 Sao Paulo, SP, Brazil

Received 15 October 2010; Revised 14 January 2011; Accepted 27 January 2011

Academic Editor: Clelia M. Riera

Copyright © 2011 Manoel Tavares Neves Junior et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The relationship between prolactin (PRL) and the immune system has been demonstrated in the last two decades and has opened new windows in the field of immunoendocrinology. However, there are scarce reports about PRL in primary antiphospholipid syndrome (pAPS). The objective of this study was to evaluate PRL levels in patients with pAPS compared to healthy controls and to investigate their possible clinical associations. Fifty-five pAPS patients according to Sapporo criteria were age- and sex-matched with 41 healthy subjects. Individuals with secondary causes of hyperprolactinemia (HPRL) were excluded; demographic, biometric, and clinical data, PRL levels, antiphospholipid antibodies, inflammatory markers, and other routine laboratory findings were analyzed. PRL levels were similar between pAPS and healthy controls ( versus  ng/mL, ). Nine percent of the pAPS patients and 12.1% of the control subjects presented HPRL ( ). Comparison between the pAPS patients with hyper- and normoprolactinemia revealed no significant differences related to anthropometrics, clinical manifestations, medications, smoking, and antiphospholipid antibodies ( ). This study showed that HPRL does not seem to play a role in clinical manifestations of the pAPS, differently from other autoimmune rheumatic diseases.