Reduced sensitivity to thyroid hormone is associated with diabetes and hypertension

Author(s):  
Ladan Mehran ◽  
Negar Delbari ◽  
Atieh Amouzegar ◽  
Mitra Hasheminia ◽  
Maryam Tohidi ◽  
...  

Abstract Background Recently, reduced sensitivity to thyroid hormone as a more common finding in the general population and its possible association with metabolic parameters has been the focus of attention. We evaluated the cross-sectional association of thyroid hormone sensitivity with diabetes, metabolic syndrome (MetS), and its components. Methods The study included a Tehranian representative sample of 5124 subjects aged ≥20 years participating in the Tehran Thyroid Study (2008-2011). Body weight, waist circumference and blood pressure were measured, and serum concentrations of lipids and lipoproteins, fasting blood glucose (FBG), insulin, free T4 (fT4) and TSH were assayed. Thyroid hormone resistance was calculated by thyroid feedback quantile-based index (TFQI) and Iranian-referenced parametric TFQI (PTFQI) and compared with two other indices of TT4RI and TSHI. Results TFQI was significantly associated with high BP metabolic syndrome criterion (OR=1.14, 95% CI: 1.06, 1.23) and DM (OR=1.16, 95% CI: 1.04, 1. 30, p=0.009) in euthyroid subjects after adjusting for age, sex, smoking, physical activity, BMI, and HOMA-IR. TFQI was not associated with new-onset diabetes contrary to known diabetes in subgroup analysis. The results were similar for PTFQI. TSHI (OR=1.22, 95% CI: 1.08, 1.38, P=0.001) and TT4RI (OR=1.08, 95% CI: 1.01, 1.16, P<0.001) were associated only with high BP in euthyroid subjects. Conclusion The new TFQI index seems to be the indicator of reduced sensitivity to thyroid hormone most suitable to associate its population variations with diabetes and hypertension in euthyroid subjects; however, interpretation for diabetes should be concerned with cautions, necessitating future studies.

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1639
Author(s):  
Zhongyao Li ◽  
Dongqing Wang ◽  
Edward A. Ruiz-Narváez ◽  
Karen E. Peterson ◽  
Hannia Campos ◽  
...  

Only a few studies primarily examined the associations between starchy vegetables (other than potatoes) and metabolic syndrome (MetS). We aimed to evaluate the association between starchy vegetables consumption and MetS in a population-based sample of Costa Rican adults. We hypothesized that a higher overall intake of starchy vegetables would not be associated with higher MetS prevalence. In this cross-sectional study, log-binomial regression models were used to estimate prevalence ratios (PRs) of MetS across quintiles of total, unhealthy, healthy starchy vegetables, and individual starchy vegetables (potatoes, purple sweet potatoes, etc.), among 1881 Costa Rican adults. Least square means and 95% confidence intervals (CIs) from linear regression models were estimated for each MetS component by categories of starchy vegetable variables. Higher intakes of starchy vegetables were associated with a higher prevalence of MetS in crude models, but no significant trends were observed after adjusting for confounders. A significant inverse association was observed between total starchy and healthy starchy vegetables consumption and fasting blood glucose. In this population, starchy vegetables might be part of a healthy dietary pattern.


2010 ◽  
Vol 162 (5) ◽  
pp. 919-923 ◽  
Author(s):  
Anna C Phillips ◽  
Douglas Carroll ◽  
Catharine R Gale ◽  
Janet M Lord ◽  
Wiebke Arlt ◽  
...  

ObjectivesThe aim of these analyses was to examine the association of cortisol, DHEAS and the cortisol:DHEAS ratio with the metabolic syndrome (MetS) and its components.DesignThe analyses were cross-sectional.MethodsParticipants were 4255 Vietnam era US army veterans. From military service files, telephone interviews and a medical examination, occupational, socio-demographic and health data were collected. MetS was ascertained from data on body mass index; fasting blood glucose or a diagnosis of diabetes; blood pressure or a diagnosis of hypertension; high-density lipoprotein cholesterol; and triglyceride levels. Contemporary morning fasted cortisol and DHEAS concentrations were determined. The outcomes were MetS and its components. Analysis was by logistic regression, first adjusting for age and then additionally for an array of candidate confounders.ResultsCortisol, although not in the fully adjusted analysis, and DHEAS were both related to MetS. Whereas high cortisol concentrations were associated with an increased risk of MetS, high DHEAS concentrations appeared protective. By far, the strongest associations with MetS were observed for the cortisol:DHEAS ratio; the higher the ratio, the greater the risk of having MetS. The ratio was also significantly related to four of the five MetS components.ConclusionsThe cortisol:DHEAS ratio is positively associated with MetS. Prospective analyses are needed to help untangle direction of causality, but this study suggests that the cortisol:DHEAS ratio is worthy of further study in this and other health contexts.


2021 ◽  
Vol 12 (10) ◽  
pp. 47-50
Author(s):  
Ritu Gupta ◽  
Akhil K Vijayan ◽  
Sushma Choudhary

Background: Metabolic syndrome is characterized by hypertension, dyslipidemia, central obesity, glucose intolerance, insulin resistance. Thyroid hormone acts as general pacemaker, accelerating metabolic process and may be associated with metabolic syndrome. There is no information available in literature regarding the prevalence and association of thyroid dysfunction in metabolic syndrome in this central region of the country. Aims and Objective: To estimate the prevalence of thyroid dysfunction in patients of metabolic syndrome. Materials and Methods: It is a duration based prospective cross sectional study including 200 patients of metabolic syndrome. A detailed history, clinical examination and relevant investigations including serum Free T4 (FT4), Free T3 (FT3), Thyroid Stimulating Hormone (TSH) were done. Range, frequencies, percentage, mean, standard deviation and P value were calculated. P value of < 0.05 was taken as significant. Results: Prevalence of thyroid dysfunction in metabolic syndrome patients was 28.5%. Prevalence of subclinical and overt hypothyroidism was 18.5% and 8.5% respectively. In patients with both metabolic syndrome and thyroid dysfunction, most common components associated are diabetes mellitus and hypertriglyceridemia. Conclusion: Thyroid dysfunction is significantly common in metabolic syndrome patients. It should be aggressively detected and treated in these patients for better outcome.


2014 ◽  
Vol 54 (4) ◽  
pp. 245
Author(s):  
Agung G. Tanurahardja ◽  
Antonius H. Pudjiadi ◽  
Pramita G. Dwipoerwantoro ◽  
Aman Pulungan

Background Thyroid hormonal dysfunction, also known aseuthyroid sick syndrome or nonthyroidal illness, can be seenin sepsis. There have been few studies on thyroid hormonedysfunction in septic children, as well as on a relationshipbetween their thyroid hormone profiles and pediatric logisticorgan dysfunction (PELOD) scores. Procakitonin (PCT) is oneof the sepsis biomarker.Objective To evaluate the thyroid hormone profile in childrenwith sepsis as well as to assess for a correlation between the thyroidlevels and PELOD scores, PCT levels, and patient outcomes.Methods This cross-sectional study included children aged 1- 18years admitted to the pediatric intensive care unit (PICU) with aprimary diagnosis of sepsis. PELOD scores and thyroid hormonallevels were assessed once during the first 24 hours after PICUadmission.Results Thirty subjects were included in the study. The medianvalues ofT3, free T4, and TSH were 45 (range 17 -133) ng/dL,0.81 (range 0.3-1.57) ng/dL, and 1.36 (range 0.05-7.78) μIU/L,respectively. The T3, free T4, and TSH levels were decreased in97%, 50% and 40% of the subjects. There were no significantdifferences between low and normal to high TSH with regards tothe PELOD score (P=0.218), PCT level (P=0.694), or patientoutcomes (P=0.55). The risk of death increased by 15 timesamong the subjects with PELOD score ~20 compared to thosewith PELOD score <20 (OR 15; 95%CI: 1.535 to 146.545;P=0.012).Conclusion Thyroid hormones are decreased in septic childrenwith the majority having low T3. A high PELOD score is stronglycorrelated with mortality and can be used as a prognostic parameterfor septic children in the PICU, but there is no correlation withdecreased TSH.


2019 ◽  
Vol 32 (4) ◽  
pp. 383-389 ◽  
Author(s):  
Mehri Khoshhali ◽  
Ramin Heshmat ◽  
Mohammad Esmaeil Motlagh ◽  
Hasan Ziaodini ◽  
Mahdi Hadian ◽  
...  

Abstract Background The aim of this study was to compare the validity of various approaches to pediatric continuous metabolic syndrome (cMetS) scores including siMS scores (2 waist/height + fasting blood glucose [FBG]/5.6 + triglycerides [TG]/1.7 + systolic blood pressure [BP]/130 + high-density lipoprotein [HDL]/1.02), Z-scores, principal component analysis (PCA) and confirmatory factor analysis (CFA) for predicting metabolic syndrome (MetS). Methods This nationwide cross-sectional study was conducted on 4200 Iranian children and adolescents aged 7–18 years. The cMetS was computed using data on HDL, cholesterol, TGs, FBG, mean arterial pressure (MAP) and waist circumference (WC). The areas under the receiver operating characteristic curves (AUCs) were used to compare the performances of different cMetS scores. Results Data of 3843 participants (52.4% boys) were available for the current study. The mean (standard deviation [SD]) age was 12.6 (3) and 12.3 (3.1) years for boys and girls, respectively. The differences in AUC values of cMetS scores were significant based on the Delong method. The AUCs (95% confidence interval [CI]) were for Z-scores, 0.94 (0.93, 0.95); first PCA, 0.91 (0.89, 0.93); sum PCA, 0.90 (0.88, 0.92), CFA, 0.79 (0.76, 0.3) and also for siMS scores 1 to 3 as 0.93 (0.91, 0.94), 0.92 (0.90, 0.93), and 0.91 (0.90, 0.93), respectively. Conclusions The results of our study indicated that the validity of all approaches for cMetS scores for predicting MetS was high. Given that the siMS scores are simple and practical, it might be used in clinical and research practice.


2008 ◽  
Vol 93 (6) ◽  
pp. 2300-2306 ◽  
Author(s):  
W. Russell ◽  
R. F. Harrison ◽  
N. Smith ◽  
K. Darzy ◽  
S. Shalet ◽  
...  

Abstract Context: TSH is known to have a circadian rhythm, but the relationship between this and any rhythm in T4 and T3 has not been clearly demonstrated. Objective: With a view to optimizing thyroid hormone replacement therapy, we have used modern assays for free T4 (FT4) and free T3 (FT3) to investigate circadian rhythmicity. Setting: The study was performed at a university hospital. Design and Subjects: This was a cross-sectional study in 33 healthy individuals with 24-h blood sampling (TSH in 33 and FT4 and FT3 in 29 individuals) and cosinor analysis. Results: Of the individuals, 100% showed a sinusoidal signal in TSH, for FT4 76%, and for FT3 86% (P &lt; 0.05). For FT4 and FT3, the amplitude was low. For TSH the acrophase occurred at a clock time of 0240 h, and for FT3 approximately 90 minutes later at 0404 h. The group cosinor model predicts that TSH hormone levels remain above the mesor between 2020 and 0820 h, and for FT3 from 2200–1000 h. Cross correlation of FT3 with TSH showed that the peak correlation occurred with a delay of 0.5–2.5 h. When time-adjusted profiles of TSH and FT3 were compared, there was a strong correlation between FT3 and TSH levels (ρ = 0.80; P &lt; 0.0001). In contrast, cross correlation revealed no temporal relationship between FT4 and TSH. Conclusions: FT3 shows a circadian rhythm with a periodicity that lags behind TSH, suggesting that the periodic rhythm of FT3 is due to the proportion of T3 derived from the thyroid. Optimizing thyroid hormone replacement may need to take these rhythms into account.


2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Wiliane J. T. Marbou ◽  
Victor Kuete

The prevalence of metabolic syndrome (MetS) and its associated risks remain unappreciated in Bamboutos Division, west region of Cameroon. This study aimed to evaluate the prevalence of MetS, its individual components, and associated risk factors among Bamboutos Division’s adults population using a Joint Interim Statement of the International Diabetes Federation (IDF) Task Force on Epidemiology and Prevention definitions parameters. A cross-sectional study was conducted from May 2016 to May 2018 in Mbouda ADLUCEM Hospital and Mbouda District Hospital, two reference hospitals in Bamboutos Division, west region of Cameroon. Interview, physical and clinical examinations, and lipid and fasting blood glucose measurements were conducted for 604 adults. The definition of MetS proposed by IDF was used. The prevalence of MetS was 32.45% with highly significant female predominance (46.11% for females and 14.01 % for males). In the entire participants, the most common abnormalities were low-HDL (82.78%) and hypertriglyceridemia (53.97%) [p<0.001]. Participants with obesity (OR: 16.34; 95% CI: 9.21-28.96), overweight (OR: 7.45; 95% CI: 4.17-13.30), and highest hs-CRP (hs-CRP >11 mg/l) had a higher risk of developing MetS. The most common MetS component was abdominal obesity (OR: 353.13; 95% CI: 136.16-915.81). MetS is prevalent among Bamboutos Division’s adults in west region of Cameroon and abdominal obesity is the most common MetS component. This study highlights the need for evidence-based prevention, diagnosis, and management of MetS and its associated factors among Bamboutos Division’s adults in Cameroon.


2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Kei Nakajima ◽  
Yulan Li ◽  
Hiroshi Fuchigami ◽  
Hiromi Munakata

Studies have shown that low forced vital capacity (LFVC) is associated with atherosclerosis. However, it is unclear whether LFVC is associated with resting electrocardiographic ST-T abnormalities, a common finding that is prognostic for cardiovascular events. Therefore, pulmonary functions, ST-T abnormalities defined with Minnesota Code, and cardiometabolic risk factors were examined in a cross-sectional study of 1,653 asymptomatic adults without past history of coronary heart diseases. The prevalence of diabetes, metabolic syndrome, and ST-T abnormalities significantly increased with decreasing percent of predicted forced vital capacity (%PFVC). ST-T abnormalities were observed in 73 subjects (4.4% in total). Multiple logistic regression analysis showed that, compared with the highest quartile of %PFVC (≥99.7%), the lowest quartile of %PFVC (≤84.2%) was persistently associated with ST-T abnormalities even after further adjustment for diabetes or metabolic syndrome (odds ratio (95%CI): 2.44 (1.16–5.14) and 2.42 (1.15–5.10), resp.). Similar trends were observed when subjects were divided into quartiles according to percent of predicted forced expiratory volume in 1 second (FEV1), but not the ratio of FEV1/FVC. In conclusion, LFVC may be associated with ST-T abnormalities independent of metabolic abnormalities in asymptomatic adults, suggesting a plausible link between impaired pulmonary defects and cardiovascular diseases.


2021 ◽  
Vol 32 (2) ◽  
pp. 170-174
Author(s):  
Md Shahed Morshed ◽  
Tahniyah Haq ◽  
Shahjada Selim ◽  
Habibul Ghani ◽  
Ibrahim Faisal ◽  
...  

Background: Vitamin D may play important role in the pathogenesis of several components of metabolic syndrome (MS). The aim of this study was to observe the association of vitamin D with MS and its components in Bangladeshi adults with prediabetes. Methods: This cross-sectional study was done among 117 newly detected nonpregnant adults with prediabetes [age (years): 36.30±9.99; BMI (kg/ m2): 28.89±4.35, mean±SD; M/F: 23/94] based on American Diabetes Association 2018 criteria. Metabolic syndrome was diagnosed by any three of five criteria: central obesity; elevated blood pressure, fasting blood glucose & triglyceride (TG) and lower HDL cholesterol. Glucose was measured by glucose oxidase, lipid by glycerol phosphate dehydrogenase-peroxidase and vitamin D by high performance liquid chromatography method. Vitamin D <20 ng/ml was considered as deficiency (VDD). Results: Among all the variables only TG was significantly higher in patients with VDD than those without VDD (³20 ng/ml) [163.0 (135.50, 224.50) vs. 143.50 (101.25, 190.0), median (IQR), p=0.048]. There were no significant correlations [p=NS for all] and associations of vitamin D with MS or its components in linear and logistic regression [p=NS for all]. Conclusions: Except TG vitamin D has no associations with MS or its components in Bangladeshi adults with prediabetes. Bangladesh J Medicine July 2021; 32(2) : 170-174


Author(s):  
Anand N. ◽  
Vidya T. A.

Background: Metabolic syndrome includes a constellation of various metabolic abnormalities that have been associated with cardiovascular disease, stroke and all-cause mortality in the general population. It has now been established that it is also associated with renal dysfunction. This study was done to assess renal function in metabolic syndrome in Indian population as well as its correlation with different parameters of the metabolic syndrome.Methods: A cross-sectional study was conducted in a university hospital from 2014 - 2015. Renal functions were studied in 100 obese individuals, 50 with and 50 without metabolic syndrome after informed consent and the results were analysed.Results: 100 obese individuals, 50 with and 50 without metabolic syndrome were compared. All underwent a physical examination and relevant investigations. All parameters of renal function showed significant derangement in cases as compared to controls. 38 patients (76%) among the cases (N=50) of metabolic syndrome had altered renal functions versus 9 patients (18%) among controls (n=50). Individually, there was a significant correlation of altered renal function (reduced estimated glomerular filtration rate eGFR and presence of microalbuminuria) with fasting blood glucose and systolic blood pressure (p=0.001), diastolic pressure (p=0.003) and triglyceride levels (p=0.036). High density lipoprotein-cholesterol levels did not show a significant correlation.Conclusions: Obese individuals with metabolic syndrome have significant derangement of renal functions as compared to those without metabolic syndrome. Most parameters of the syndrome are also independently associated with alteration of renal functions.


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