Showing 11 results for Thyroid
Bagher Larijani, Shahin Yarahmadi, Ebrahim Javadi, Payman Shooshtaryzadeh, Seyed Majid Akhsvan Hejazi, Mahyar Gholazmpor Dahaki,
Volume 2, Issue 2 (6-2003)
Abstract
Background: Diabetes type 1 is characterized by autoimmune destruction or primary dysfunction of pancreatic cells. The more common form is the autoimmune type, which can be associated with other endocrine malfunction such as adrenal insufficiency and Hashimoto’s thyroiditis. Autoimmune thyroiditis is characterized by presence of anti TG, anti TPO and anti TSH antibodies in the plasma. This study has investigated the prevalence of autoimmune thyroid disorders in type 1 diabetic patients.
Methods: 200 type 1 diabetics and 200 age/sex matched non-diabetic controls were recruited. Blood samples were taken to determine serum levels of thyroid hormones (T3RU, T3, T4, and TSH) and antithyroid antibodies.
Results: TG-Ab and TPO-Ab levels were significantly higher (P<0.001) in diabetics compared to controls (mean TG-Ab: 955.7±495.5 in diabetics and 451.0±189.5 in controls mean TPO-Ab: 463.2±182.3 in diabetics and 112.4±38.3 in controls). Clinical and subclinical hyperthyroidism was four times more common in diabetics. Conclusion: It seems reasonable that type 1 diabetic patients, especially those at younger ages, be screened for thyroid hormones and anti-thyroid antibodies
Rahim Vakili, Mahmood Mahmoudi, Ali Ghasemi,
Volume 3, Issue 1 (5-2004)
Abstract
Diabetes mellitus is the commonest endocrine-metabolic disorder during the early years of life. As many as one in five of insulin-dependent diabetics may have thyroid antibodies in their sera, which is 2-20 times higher than the general population.
Methods: Tpo-ab, Tg-ab, TSH and HbAlC were measured in 48 children and adolescents with diabetes and compared with for sex/age-matched controls. Clinical data including sex, age at onset and duration of diabetes, family history and signs and symptoms of thyroid disorders were recorded. Statistical analysis was made using SPSS software.
Results: In diabetic group, twelve patients had positive thyroid autoantibodies Tg-ab was positive in ten and Tp-ab was positive in nine and both were positive in seven patients. The prevalence of thyroid antibodies in our study was 25% and in the control group, nobody had thyroid antibodies (P=0.006). Of the twelve patients with autoimmune thyroid disorders, three had hypothyroidism.
Conclusion: The prevalence of autoimmune thyroid disorders was not influenced by sex, age, duration of diabetes or HbAlc level. On the whole, nearly one-fourth of diabetic patients had thyroid antibodies, and annual thyroid antibodies investigation for these patients is suggested.
Farzad Hadaegh, Maryam Tohidi, Hadi Harati, Marjan Farshadi, Parisa Estaaneh,
Volume 4, Issue 1 (7-2004)
Abstract
Background: Diabetes type 1 is an autoimmune disease that is associated with other autoimmune disorders like Hashimoto thyroiditis. The purpose of this study was to determine the prevalence of autoimmune thyroid disease (ATD) in type 1 diabetic patients in the south of Iran (Bandar Abbas).
Methods: A cross-sectional study, was conducted 48 type 1 diabetics and 41 age and sex matched healthy controls were evaluated for the presence of ATD. Blood sample were collected from all of the subjects for the measurement of thyroid autoantobodies [anti thyroid peroxidase (anti-TPO) and anti thyroglobulin (anti-TG)], T3, T4, TSH, RT3U and HbA1c.
Results: Prevalence of positive anti-TPO and anti-TG was 29 % and 29% respectively in diabetic patients and 2% and 7% respectively in control group (P<0.05). The prevalence of ATD (positive anti TPO or anti TG) in diabetic patients and control subjects was 35% and 7% respectively (P<0.05). The prevalence of positive anti TPO and anti TG was higher in girls. There was no association between the prevalence of positive autoantibody and duration or age of onset of diabetes. 17.6% of diabetic patients with positive autoantibody had thyroid dysfunction (subclinical hypothyroidism and hyperthyroidism).
Conclusion: Regarding high prevalence of ATD in type 1 diabetic patients in Bandar Abbas (approximately 1 out of 3 patients), screening for ATD and thyroid dysfunction is recommended for all type 1 diabetic patiens and in those with positive autoantibody consecutively.
Elaheh Khajouee, Zohreh Elahi-Moghaddam, Morteza Behnam-Rasouli, Naser Mahdavi-Shahri,
Volume 13, Issue 5 (7-2014)
Abstract
Background: Diabetes is a kind of metabolic disorder characterized by hyperglycemia, caused by defect in insulin function, secretion or both. In chronic hyperglycemia different tissues and organs, such as thyroid gland underwent histophysiological alterations. The aim of the present study was to compare the effects of type 1 and type 2diabetes on the serum levels of biochemical factors and histological changes in the thyroid gland in male Wistar rats.
Methods: After induction of type 1 diabetes (Alloxan 135 mg/kg BW) and type 2diabetes (10% fructose administrated through drinking water for 8 weeks) all rats were kept for 2 months. Blood samples were collected at the beginning and in the middle and at the end of experiment for biochemical factors analysis. After that, the thyroid gland of all rats were removed and processed for histological preparation. Then the HE stained sections were examined for thyroid gland volume and follicular surface density measurements, using Cavalieri’s Principle and stereological method, respectively.
Results:The results showed an increase in surface density and a decrease in thyroid volume in type 1 diabetic and type 2 diabetic groups, when compared with control. Furthermore, in type 1 diabetic group, the Triglycerid and Cholesterol levels increased and LDL level decreased, while in type 2 diabetic group, LDL and HDL levels slightly decreased. These results reveal that type 1 and type 2 diabetic conditions probably cause hypo- and hyper activity of thyroid gland, respectively.
Maryam Djamnezhad , Kurosh Djafarian, Mostafa Qorbani, Asal Ataie-Jafari, Saeed Hosseini,
Volume 14, Issue 1 (1-2015)
Abstract
Background: There is increasing interest about the relationship between metabolism, obesity and function of thyroid hormones in recent decades. This study aimed to determine the validity of a “thyroid and metabolism questionnaire” and its relationship with metabolism status and function of thyroid hormones.
Methods: It was a descriptive cross-sectional study on 164 people aged 20-64 years who were selected randomly from nutrition clinic. “Thyroid and Metabolism questionnaire” including 25 questions were completed for everyone. Biochemical parameters including serum level of T3, T4 and TSH were measured. Resting energy expenditure [REE] was measured by indirect calorimeter.
Results: The mean measured REE and calculated with Harris-Benedict formula were 1826.7 ± 475.34 and 2277.6 ± 454.54 kcal in men and 1410.8 ± 205.5 and 1670.73 ± 136.10 kcal in women respectively. The final score of this questionnaire had no significant association with measured REE. REE showed indirect relationship with serum level of T3, T4, T3/T4 and inverse relationship with TSH. Metabolism status of every participant was obtained via measuring and calculating REE with set and formula. The metabolism status of participants showed no agreements with metabolism status that predicted from “Thyroid and Metabolism” questionnaire. There was no significant association between metabolism status that was measured by indirect calorimeter and calculated from “Thyroid and Metabolism” questionnaire. From 25 questions of this questionnaire, only questions number 1, 4, 16 and 23 showed significant association with measured REE [P< 0.05].
Conclusion: Results of this study showed that “Thyroid and Metabolism” questionnaire had internal consistency, but not validity.
Habibeh Taghavi Kojidi, Farshad Farzadfar, Niloofar Peykari, Bagher Larijani, Shadi Rahimzadeh, Ehsan Rezaei-Darzi, Sahar Saeedi Moghaddam,
Volume 15, Issue 2 (1-2016)
Abstract
Background: Thyroid cancer is the most common form of endocrine cancer. The age and gender-adjusted incidence of thyroid cancer has increased faster than that of any other malignancy in recent years, with the increased incidence seen in both genders, all ethnic backgrounds and all sizes of thyroid cancer. It appears that the rise in thyroid cancer incidence is not only due to medical surveillance and improved disease detection. In Iran, also scattered studies had been accomplished in different provinces and requirement to more attention and planning for thyroid cancer. Thyroid cancer’s control and prevention requires to the evidence–based strategies in different population groups based on national and provincial comprehensive studies on the prevalence and incidence. Thus we aimed to provide the comprehensive information about thyroid cancer prevalence and trend in national, provincial levels among Iranian population.
Methods: In this study we used some steps respectively to show how thyroid cancer prevalence changes in 1990 to 2010 between different provinces. We aggregate cancer registry data set by province, age categorized, gender and merge with other national covariates that were gathered in Iran. Then, linear regression model and logistic regression model were used to modeling and predicting for other provinces and years.
Results: Mean of thyroid cancer prevalence displayed that prevalence increased with increase in years especially more rapidly from 2002-2010 the prevalence rates were estimated to be (0.0-0.25) and (4.2-13.7) per 100000 in 1990 and 2010 respectively and increased in both females and males. Female to male ratio was 2.5. Highest prevalence thyroid cancer were in four provinces of Iran, Isfahan (mean rate 4.3 per 100000), Yazd (mean rate 4.1 per 100000), Tehran (mean rate 4 per 100000) and Qazvin (mean rate 3.1 per 100000) respectively.
Conclusion: Iran map displayed with increase in years, thyroid cancer prevalence become larger. Additional research on the risk factors for thyroid cancer is needed to explain the difference of thyroid cancer prevalence between provinces.
Vahid Maleki, Mohamad Reza Mohajeri Tehrani, Ehsaneh Taheri, Mostafa Qorbani, Mohsen Sedighiyan, Saeed Hoseini,
Volume 16, Issue 2 (1-2017)
Abstract
Background: The major cause of obesity is an imbalance between energy intake and energy expenditure and resting energy expenditure (REE) is the most important determining factor in metabolism because it can reduce obesity and body fat mass gain. Overt hypothyroidism is associated with a lower resting energy expenditure (REE). With treatment, the resting energy expenditure (REE) will be normal. But a group of patients with treatment and normal serum level of TSH and thyroid hormones, Continue to complain of the lack of improvement of Clinical signs of overt hypothyroidism. This study is designed whether patients that have Clinical signs of overt hypothyroidism in compared with patients without Clinical signs, resting metabolic rate, body composition and lipid profile are different or not.
Methods: This study is a descriptive and comparative study on 100 women with overt hypothyroidism are treated with levothyroxine. The patients were divided into 2 groups of 50 patients with and without clinical signs. All patients were matched for age and BMI and menstrual cycle. 2 groups regarding anthropometric measurements, resting energy expenditure (REE), body composition, thyroid hormones, lipid profile and diet were compared with each other.
Results: The average resting energy expenditure (REE) and adjusted of it for weight was significantly lower in the group with Clinical signs (Pvalue<0.03). But there was no significant difference between the 2 groups for the form of an adjustment for fat free mass (FMM) and FT3. The body fat mass (FM) was higher in the group with Clinical signs (Pvalue<0.005).But there was no significant difference between the 2 groups in the percentage of body fat mass and fat free mass (FMM). Serum levels of TSH, TF4, FT4, TT3, FT3, total cholesterol, HDL, LDL, there was no significant difference between the 2 groups. But the level of blood triglycerides (TG) in the group with Clinical signs was significantly higher than the group without Clinical signs (Pvalue<0.01).
Conclusion: Patients with Clinical signs, lower resting energy expenditure (REE) and fat mass (FM) and triglycerides blood (TG) is higher than in patients without Clinical signs.
Sepideh Soltani , Farzaneh Taghian,
Volume 18, Issue 3 (3-2019)
Abstract
Background: The purpose of this study was to investigate the effect of eight weeks of aerobic exercise and supplementation of gensing on homocysteine levels, tiroid hormon and insulin resistant in obese women with hypothyroidism.
Methods: This study is quasi-experimental study. For this purpose, 40 obese women with hypothyroidism with an average age of 34.62 ± 3.55 years, weight 80.47 ± 3.85 kg and BMI of 32.2 ± 2.27 kg / m2, were randomly divided into four groups including aerobic training (10), ginsing (10), aerobic exercise and ginsing (10) and placebo (10) were divided.Aerobic exercise included 8 weeks of aerobic training, 3 sessions per week, 45 to 70 minutes, and 55 to 75% of maximum heart rate. Patients in the ginseng group and aerobic exercise with ginsing consumed each day a Jinsen's capsule containing 250 mg of granule Risomy ginseng powder was taken orally after 8 weeks for 8 weeks, while subjects in the placebo group received flour powdered capsules.Blood samples from the anterior vein were used to measure homocysteine, TSH, T3, T4, glucose and insulin before and after 8 weeks in four groups. For data analysis, dependent t-test and variance analysis were used (P≤0/05).
Results: The results showed that the plasma homocysteine, TSH, glucose concentrate, insulin resistance and insulin resistance were significantly decreased in all three experimental groups while T3 and T4 increased (P <0.05). These indices in the control group were not changed (P <0.05).
Conclusion: Therefore, aerobic exercise, along with supplementation with ginsing, can have an important role in preventing an increase in cardiovascular risk factors and hypothyroidism in obese women with hypothyroidism.
Sayed Mahmoud Sajjadi-Jazi, Farshad Sharifi, Mehdi Varmaghani, Hamidreza Aghaei Meybodi, Farshad Farzadfar, Vahid Haghpanah, Bagher Larijani,
Volume 19, Issue 3 (2-2020)
Abstract
Background: The aim of this study was to estimate the prevalence of clinical hyperthyroidism at the national and sub-national levels using the claims data.
Methods: National anti-thyroid medications (methimazole and propylthiouracil) sales data in 2014 were extracted from pharmaceutical sales data that were reported by Iran's Food and Drug Administration (FDA). By using prescriptions data of Social Security Insurance Organization (SSIO) and Medical Services Insurance Organization (MSIO) in 2014, age-sex-province proportions of drug consumptions and Defined Daily Dose (DDD) of anti-thyroid medications were calculated. Moreover, by systematic review and meta-analysis of published literatures in hyperthyroidism in Iran, the prescription rate of anti-thyroid medications was calculated. Finally by using the whole data, the prevalence of clinical hyperthyroidism was estimated in each age and sex groups in national and provincial levels.
Results: : The prevalence (95% confidence interval) of clinical hyperthyroidism in Iran in 2014 is 0.32% (0.21-0.51%); 0.44% (0.29-0.68%) in females and 0.2% (0.12-0.33%) in males. Among provinces the least prevalence rate of clinical hyperthyroidism is 0.24% (0.16-0.38%) which belongs to Sistan and Baluchistan, and the highest prevalence rate is 0.38% (0.24-0.6%) which belongs to Gilan.
Conclusion: The prevalence rate that reported by this study is compatible with other surveys which performed in the world and Iran. As a result using claims data is a good source to predict prevalence of chronic diseases that have specific drugs.
Ali Ghandali, Seyed Mohammad Tavangar, Amir Pejman Hashemi Taheri, Farshad Sharifi, Vahid Haghpanah, Neda Hatami, Mohammad Reza Mohajeri Tehrani, Sayed Mahmoud Sajjadi-Jazi,
Volume 21, Issue 1 (3-2021)
Abstract
Background: In this study, we investigated the diagnostic power of ultrasound in the diagnosis of malignancy in thyroid nodules in Iranian patients. For this purpose, we examined the relationship between ultrasound findings and pathology findings.
Methods: The present study is a retrospective study. The patients with a diagnosis of thyroid nodules who underwent ultrasound and FNA, were included in this study. To assess the relationship between the results of FNA and the ultrasound characteristics of nodules, we classified the results of FNA into malignant and benign groups and then compared ultrasound characteristics between the two groups. In cases which the FNA results were indeterminate (AUS/FLUS or FN/SFN), the postoperative pathology result was considered (if thyroid surgery was done and the result was available).
Results: In total, 201 nodules were included in this study. The results showed that hypoechogenicity, irregular/ill-defined margin, microcalcification, malignant flow pattern in Doppler sonography and concurrent cervical lymphadenopathy with suspicious features were significantly associated with malignant thyroid nodules. However, other ultrasound findings, such as the size and location of the nodule, presence of a cystic components within the nodule, the presence of a Halo sign, and the presence of a taller-than-wide shape, could not distinguish between benign and malignant nodules. Finally, the results of the present study showed that the accuracy of ultrasound in the diagnosis of malignancy in thyroid nodules is high.
Conclusion: This study suggests that the use of ultrasound can be very effective in diagnosing malignancy in thyroid nodules.
Romina Peymani, Hosain Zaeri, Srajdin Arefni,
Volume 23, Issue 3 (9-2023)
Abstract
Background: Congenital hypothyroidism is one of the important preventable causes of mental restriction in children. Considering the importance of the etiology of the disease in the better management of patients in the later years of life and adulthood, this study was conducted with the aim of investigating the etiology of permanent congenital hypothyroidism in patients referred to children's clinic in Gorgan.
Methods: This cross-sectional study was conducted on 75 children's files with permanent congenital hypothyroidism. The diagnosis of the disease was made based on the findings of the technetium 99 thyroid scan after the completion of the three-year treatment period. Laboratory results, thyroid scan and information related to risk factors were extracted from patients' files.
Results: 56% of newborns were boys, 32% were born in winter and 61.3% were from Persian ethnicity. The most diagnosed permanent hypothyroidism was ectopic type. 37.33% of babies with permanent congenital hypothyroidism were born preterm. 67.6% of babies born with permanent congenital hypothyroidism weighed less than 2500 grams, and 41.3% of mothers had a history of hypothyroidism and in 42.7% of infants with permanent maternal hypothyroidism, the parents had a family relationship.
Conclusion: In the present study, prematurity of babies as well as hypothyroidism of the mother and family marriage of the parents in babies with permanent congenital hypothyroidism have a relatively high prevalence.
