Document Detail


Excessive iodine intake and ultrasonographic thyroid abnormalities in schoolchildren.
MedLine Citation:
PMID:  19554806     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
High nutritional levels of iodine may induce a higher prevalence of autoimmune thyroiditis, hypothyroidism, goiter, as well as hyperthyroidism, mostly in the elderly. This study assessed thyroid volume and ultrasonographic abnormalities as well as urinary iodine excretion (UIE) in 964 schoolchildren living in an iodine-sufficient area in southern Brazil. Thyroid volume correlated with age and body surface area in boys and girls. In 76.8% of the children, UIE was above 300 microg/l, with higher levels among boys compared to girls (484.2 microg/l vs 435.3 microg/l, p < 0.001). Thyroid abnormalities detected by ultrasonography included hemiagenesis (0.5%), nodules (0.2%), cysts (0.7%), and hypoechogenicity (11.7%). Goiter was present in 1.9% of the children. Hypoechogenicity, a relevant marker of autoimmune thyroiditis, was the most common abnormality found in our study, and this may be linked to excessive iodine intake.
Authors:
Glaucia C Duarte; Eduardo K Tomimori; Rosalinda Y A de Camargo; Regina M Catarino; Jerenice E Ferreira; Meyer Knobel; Geraldo Medeiros-Neto
Related Documents :
15777996 - Association between systemic lupus erythematosus, rheumatoid arthritis, hyperprolactine...
6588146 - Strong association of hla bw46 with juvenile onset myasthenia gravis in hong kong chinese.
25332676 - Paediatric sleep resources in canada: the scope of the problem.
25315126 - Magnesium as an adjuvant for caudal analgesia in children.
10479256 - Shock absorption potential of different mouth guard materials.
10616946 - Can children with autistic spectrum disorders perceive affect in music? an experimental...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of pediatric endocrinology & metabolism : JPEM     Volume:  22     ISSN:  0334-018X     ISO Abbreviation:  J. Pediatr. Endocrinol. Metab.     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-06-26     Completed Date:  2009-07-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508900     Medline TA:  J Pediatr Endocrinol Metab     Country:  England    
Other Details:
Languages:  eng     Pagination:  327-34     Citation Subset:  IM    
Affiliation:
Thyroid Unit, Division of Endocrinology, Department of Clinical Medicine, University of São Paulo Medical School, Brazil. duarteglaucia@terra.com.br
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adolescent
Body Surface Area
Brazil / epidemiology
Child
Female
Humans
Iodine / administration & dosage,  adverse effects*,  urine
Male
Thyroid Diseases / epidemiology,  ultrasonography*
Thyroid Gland / drug effects,  ultrasonography*
Chemical
Reg. No./Substance:
7553-56-2/Iodine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Etiological factors for the persistence of endemic goiter in selected areas of Siddharthnagar distri...
Next Document:  Higher frequency of screening TSH above 5 mIU/l in infants likely exposed to higher doses of iodine-...