Author
  Dr. Medeiros-Neto, MD, FACP, was born in 1936 and graduated from the University of Sao Paulo Medical School in 1959. After receiving a fellowship in Nuclear Medicine (Hospital das Clinicas) and the James Picker Foundation Clinical and Research Fellowship at the Massachusetts General Hospital, Harvard Medical School, in 1963 and 1964, Dr. Medeiros-Neto became assistant Professor of Medicine in 1965 at the University of Sao Paulo Medical School. He received his doctorate in Medicine in 1967 and was appointed Professor of Medicine (University of Sao Paulo School) in 1973. Since 1965, Dr. Medeiros-Neto has served as head of Thyroid Laboratory at the University of Sao Paulo Medical School' Hospital das Clinicas. His research has been in the area of endemic goiter and cretinism, thyroid dishormonogenesis, nutritional and growth disorders. Dr. Medeiros-Neto has published over 210 papers in several national and international journals and authored or co-authored 10 books on Thyroid Disease and Nutrition Disorders. He is also editor of "Frontiers in Thyroidology" published by Plenum Press, New York (1986) containing the papers presented at the 9th International Thyroid Congress and contributed with chapters to leading text books such as DeGroot's "Endocrinology" and Ingbar & Braverman "The Thyroid". Member of key Endocrine and Thyroid Societies in the USA, ASIA, EUROPE and LATIN AMERICA, he has received several prizes for this research work including the International LATS award of 1980. He was one of the founders and served as its first President of the Latin American Thyroid Society in 1974–1978, and was Organizer for the 9th International Thyroid Congress that was held in Sao Paulo (1985). With R. Maciel and A. Halpern he edited "Iodine Deficiency Disorders and Congenital Hypothyroidism", Aché, 1986. He joined in 1985, the Executive Committee of the International Council for Control of Iodine Deficiency Disorders – (ICCIDD). He was indicated as Professor Adjunct of the University of Miami, Department of Medicine (1986).

Admitted as Fellow of the American College of Physicians (1986). Editor of the book "Obesity, a new Metabolic Frontier" (1987). President of the Brazilian Association for the Study of Obesity (1987) and Chairman of the Board (1989). Member of the Council of the International Association for the Study of Obesity (1987–1990). Member of the editorial Board of leading medical journals in his specialty such as "Endocrinology", "Journal of Endocrinological Investigation", "Thyroid" and "Arch Bras Endocr and Metab". Elected Governor of the American College of Physicians Affiliate Region of Brazil (1991–1995). President of the V Latin American Thyroid Congress (1991). Visiting Professor at the University of Miami, Dept. of Medicine in February, 1992-1994. Elected Member of the Academy of Medicine (Sao Paulo) in June 1992. Elected as Director Treasurer of the "Academia de Medicina de São Paulo" in August 1993. Published the book "Inherited disorders of the thyroid system", CRC Press, 1994. Visiting Professor and Lecturer, University of Chile, Santiago, 1995. Received the prize "ACADEMIA DE MEDICINA" 1995 and the "Paul Starr Award" (ATA) in 1996.Organizer and chairman of the International Symposium on Thyroid Nodules (1997) and the 4th International Workshop on Resistance to Thyroid Hormone (1999).

Research Interests
Iodide deficiency disorders and its consequences. Naturally occurring goitrogens. Genetic defects in thyroid metabolism: Pathophysiology and molecular biological studies. Resistance to thyroid hormone

Membership in Professional Societies
American Thyroid Association, Endocrine Society, European Thyroid Association, Société Française d'Endocrinologie, Sociedade Chilena de Endocrinologia, Sociedade Brasileira de Endocrinologia e Metabologia, Sociedade Latino-Americana de Tireóide, Associaçao Brasileira para o Estudo da Obesidade. Honorary Member of the "Academia de Medicina", Santiago, Chile.

Certification
Brazilian Society of Endocrinology and Metabolism.

Licensure
CREMESP 8870, State of Sao Paulo, Brazil.

Present position
Professor of Endocrinology, Dept. of Medicine, Member of the Board, Dept. Medicine. Chief, Thyroid Unit (Molecular and Cellular Biology Labs), Hosp Clinicas Univ Sao Paulo Medical School