Department of Pediatrics
Senior Attending
Principal Investigator

Contact Information


  • Undergraduate: B.Sc., Hindu College, University of Delhi, Delhi, India
  • Medical School: All India Institute of Medical Sciences (A.I.I.M.S.), New Delhi, India
  • Internship: Rotating internship, Columbus-Cuneo-Cabrini Medical Center, Chicago, Illinois
  • Residency: Junior residency in Ophthalmology, Rajendra Prasad Centre of Ophthalmology, A.I.I.M.S., New Delhi, India
  • Residency: Pediatric residency PL1-2, Northwestern University Affiliated Program, Columbus-Cuneo-Cabrini Medical Center, Chicago, Illinois
  • Residency: Pediatric residency PL3, Wyler Children's Hospital, University of Chicago, Chicago, Illinois
  • Fellowship: Neonatology, Jackson Memorial Hospital, University of Miami, Miami, Florida

Honors and Awards

  • Clinical Excellence Award for Caring, University Hospital, Birmingham, Alabama, 1998.
  • Ralph E. Tiller Distinguished Faculty Award (for teaching of residents), Department of Pediatrics, University of Alabama at Birmingham, Alabama, 1998.

Professional Memberships/Affiliations/Activities

  • Active member, Society of Pediatric Research
  • Fellow, American Academy of Pediatrics
  • Oxygen Society
  • Society for Neurosciences

Scholarly Work

Publications in Peer-Review Journals:  

  1. Chen C, Neto GS, Tan S, Bandstra E, Duara S, Gerhadt T, Bancalari E.  Respiratory stability in neonates with in utero exposure to cocaine. J Pediatr 119(1):111-113, 1991.
  2. Tan S, Duara S, Neto GS, Afework M, Gerhadt T, Bancalari E.  The effects of respiratory training with inspiratory flow resistive loads in premature infants. Pediatr Res 31:613-618, 1992.
  3. Radi R, Tan S, Prodanov E, Evans RA, Parks DA.  Inhibition of xanthine oxidase by uric acid and its influence on superoxide radical production. Biochem Biophys Acta 1122:178-182, 1992.
  4. Tan S, Yokoyama Y, Dickens E, Cash TG, Freeman BA, Parks DA.  Xanthine oxidase activity in the circulation of rats following hemorrhagic shock. Free Radic Biol Med 15:407-414, 1993.
  5. Tan S, Radi R, Gaudier FL, Evans RA, Rivera A, Kirk KA, Parks DA.  Physiological levels of uric acid inhibit xanthine oxidase in human plasma. Pediatr Res 34:303-307, 1993.
  6. Nielson VG, Weinbroum A, Tan S, Samuelson PN, Gelman S, Parks DA.  Xanthine oxidoreductase release after descending thoracic aorta occlusion and reperfusion in rabbits. J Thorac Cardiovasc Surgery, 107:1222-1227, 1994.
  7. Tan S, Gelman S, Wheat JK, Parks DA.  Circulating xanthine oxidase in human ischemia-reperfusion. South Med J, 88:479-482, 1995.
  8. Weinbroum A, Nielsen VG, Tan S, Gelman S, Matalon S, Bradley E, Skinner K, Parks DA.  Liver ischemia-reperfusion increases pulmonary permeability in the rat: role of circulating xanthine oxidase. Am J Physiol, Gastrointestinal and Liver Physiology, 268:G-988-G996, 1995.
  9. Nielsen VG, McCammon AT, Tan S, Kirk KA, Samuelson PN, Parks DA.  Xanthine oxidase inactivation attenuates post-occlusion shock after descending thoracic aorta occulusion and reperfusion in rabbits. J Thorac Cardiovasc Surgery, 110:715-722, 1995.
  10. Tan S, Liu Y-Y, Nielson VG, Skinner K, Kirk KA, Baldwin ST, Parks DA.  Maternal Infusion of Antioxidants (Trolox and Ascorbic Acid) Protects the Fetal Heart in Rabbit Fetal Hypoxia. Pediatr Res, 39:499-503, 1996.
  11. Nielson VG, Tan S, Baird MS, McCammon AT, Parks DA.  Gastric intramucosal pH and multiple organ injury: impact of ischemia-reperfusion and xanthine oxidase. Crit Care Med, 24:1339-1344, 1996.