1. Department of Genetics, Federal University of Pernambuco, Recife, Brazil;
2. Laboratory of Immunopathology Keizo Asami, Recife, Brazil;
3. Department of Oceanography, Federal University of Pernambuco, Recife, Brazil;
4. Department of Biology, Federal Rural University of Pernambuco, Recife, Brazil;
5. Division of Clinical Rheumatology, University of Pernambuco, Recife, Brazil