PMID- 21967459 OWN - NLM STAT- MEDLINE DCOM- 20111122 LR - 20191112 IS - 2162-6537 (Electronic) IS - 0731-8898 (Linking) VI - 30 IP - 2 DP - 2011 TI - Radioprotective role of selenium after single-dose radioiodine ((1)(3)(1)I) exposure to red blood cells of rats. PG - 153-62 AB - The present study elucidated the protective potential of selenium following (1)(3)(1)I-induced alterations in rat blood. Forty rats were segregated into 4 groups. Animals in Group I served as normal controls, Group II animals were injected with a single dose of 3.7 Mbq of (1)(3)(1)I (carrier free), Group III animals were supplemented with selenium (1 ppm), and Group IV animals were given a combined treatment of selenium and (1)(3)(1)I. (1)(3)(1)I treatment of rats showed significant increases in total leukocyte counts (TLCs), lymphocytes, and neutrophils (monocytes and eosinophils were not recorded). These were significantly restored upon supplementation of selenium. Lipid peroxidase (LPO), glutathione peroxidase (GSH-PX), reduced glutathione (GSH), superoxide dismutase (SOD), and delta-aminolevulinic acid dehydratase (delta-ALAD) were found to be enhanced following (1)(3)(1)I treatment. However, the levels of catalase were found to be decreased. Selenium administration to (1)(3)(1)I-treated rats resulted in significant restoration of these enzyme activities. Scanning electron microscope (SEM) studies also revealed various surface deformities in erythrocytes after (1)(3)(1)I treatment, which upon supplementation with selenium were significantly restored. In conclusion, selenium may prove to be an effective radioprotector following (1)(3)(1)I treatment. FAU - Sood, Abhilasha AU - Sood A AD - Department of Biophysics, Panjab University, Chandigarh, India. FAU - Chadha, Vijayta Dani AU - Chadha VD FAU - Dhawan, Devinder K AU - Dhawan DK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Environ Pathol Toxicol Oncol JT - Journal of environmental pathology, toxicology and oncology : official organ of the International Society for Environmental Toxicology and Cancer JID - 8501420 RN - 0 (Iodine Radioisotopes) RN - 0 (Radiation-Protective Agents) RN - EC 1.11.1.6 (Catalase) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - EC 4.2.1.24 (Porphobilinogen Synthase) RN - GAN16C9B8O (Glutathione) RN - HIW548RQ3W (Sodium Selenite) SB - IM MH - Animals MH - Catalase/metabolism MH - Erythrocytes/*drug effects/metabolism/*radiation effects/ultrastructure MH - Female MH - Glutathione/metabolism MH - Iodine Radioisotopes/*adverse effects MH - Lipid Peroxidation/drug effects/radiation effects MH - Porphobilinogen Synthase/metabolism MH - Radiation-Protective Agents/administration & dosage/*therapeutic use MH - Rats MH - Rats, Sprague-Dawley MH - Sodium Selenite/administration & dosage/*therapeutic use MH - Superoxide Dismutase/metabolism EDAT- 2011/10/05 06:00 MHDA- 2011/12/13 00:00 CRDT- 2011/10/05 06:00 PHST- 2011/10/05 06:00 [entrez] PHST- 2011/10/05 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] AID - 76aa57c972132785,08eecbad61db2102 [pii] AID - 10.1615/jenvironpatholtoxicoloncol.v30.i2.60 [doi] PST - ppublish SO - J Environ Pathol Toxicol Oncol. 2011;30(2):153-62. doi: 10.1615/jenvironpatholtoxicoloncol.v30.i2.60.