background thyroid hormones play an important role in lipid metabolism. overt hypothyroidism is known to be associated with increased lipid profiles, but the effect of subclinical hypothyroidism (sch) on lipid profile remains controversial. objectives the aim of this study was to assess the association between thyroid disorders and serum lipid levels. materials and methods the present study was...

background thyroid dysfunction is the second most common endocrine disease in females of reproductive age. there are controversial data on the adverse effect of subclinical thyroid dysfunctions on adverse feto-maternal outcomes. objectives the current study aimed to identify the prevalence of thyroid dysfunction during pregnancy and to assess the effectiveness of treatment with levothyroxine on...

Background: Smoking can cause thyroid disorders; the aim of the present study was to investigate the association between smoking status and changes in thyroid hormone levels among adult males during a decade long follow-up of in the Tehran Thyroid Study (TTS). Methods: Data of 895 adult males (smokers=115, non-smokers=691, ex-smokers=89) participants of the TTS without any previously known thy...

OBJECTIVE Thyroid peroxidase antibody (TPOAb), the most common antibody frequently measured in population surveys is a protein expressed in the thyroid gland. We conducted the present study to analyze the prevalence and incidence of thyroid auto immunity and natural course of TPOAb in a population based study. MATERIAL AND METHODS This prospective study was conducted within the framework of t...

OBJECTIVES This study aimed to assess the prevalence and incidence and predictive factors of thyroid disorders (TD) in patients with impaired glucose metabolism. METHODS Prevalence of TD was calculated in patients with impaired glucose metabolism compared to healthy controls, aged over 30 years in phase 1 of the Tehran Thyroid Study (TTS). Follow up assessments were conducted every 3 yrs, aft...

 Abstract Background: The children with middle ear effusion need repeated re-tympanostomies. Adenoidectomy is an effective surgical intervention in the management of chronic otitis media with effusion in conjunction with in-sertion of tympanostomy tubes (TTs). To find out whether TTs in different positions decrease the rate of re-tympanostomies study was done. Methods: The present study retrosp...