scholarly journals Clinical and Laboratory Evaluation between Serum Cholesterol and Thyroid Stimulating Hormone Level in the Patients of Thyroid Dysfunction and Hypothyroidism

2021 ◽  
Vol 11 (1) ◽  
pp. 3036-3048
Keyword(s):  
Serum Cholesterol ◽  
Thyroid Dysfunction ◽  
Density Lipoprotein ◽  
Thyroid Stimulating Hormone ◽  
Laboratory Evaluation ◽  
P Value ◽  
Cholesterol Levels ◽  
Significant Difference ◽  
Hypothyroid Patients ◽  
Stimulating Hormone

Thyroid hormones regulate lipid and lipoprotein metabolism; Therefore, thyroid dysfunction induces significant changes in lipid levels. This study was carried out to study the prevalence of thyroid disease and observe the association between hypothyroidism and serum cholesterol levels. A cross-sectional study enrolling all 50 diagnosed hypothyroid patients coming to the hospital lab irrespective of age and sex was selected, conducted during 2018-2020. The present study was conducted in the department of biochemistry in fifty hypothyroid male and female cases and 50 healthy controls. Serum triiodothyronine (T3), thyroxine (T4), thyroid-stimulating hormone (TSH), Total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, and Triglycerides were estimated in these patients, and the results were analyzed. Mean values of Serum Cholesterol in cases (<0.001), there was a significant difference between serum cholesterol of hypothyroid cases and controls with p-value <0.001. There was a significant difference between serum TSH of hypothyroid cases and controls with a p-value <0.000. We found that in other investigations FBS, TG, VLDL, T3 & T4, the p-value was found significant among cases and controls. In the present study, we concluded that TSH level is increased and T3 and T4 levels are decreased in hypothyroid patients, creatinine, and cholesterol levels are increased in hypothyroid patients. We observed that there is an increase in TSH levels as age increases. We can say that any change in thyroid hormone levels alters skeletal muscles' functioning and decreases renal perfusion and filtration capacity.

scholarly journals Circulating Angptl3 and Angptl8 Are Increased in Patients with Hypothyroidism

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Longyan Yang ◽  
Ruili Yin ◽  
Zongwei Wang ◽  
Xiaobo Wang ◽  
Yuanyuan Zhang ◽  
...  
Keyword(s):  
Thyroid Dysfunction ◽  
Operating Characteristic ◽  
Characteristic Curve ◽  
Density Lipoprotein ◽  
Control Group ◽  
Thyroid Function Tests ◽  
Cholesterol Levels ◽  
Clinical Indices ◽  
Positive Correlations ◽  
Hypothyroid Patients

Purpose. Angiopoietin-like proteins (Angptls) play critical roles in biological processes, primarily in lipid metabolism. The functional state of the thyroid has a profound influence on metabolism in the human body. Therefore, the aim of this study was to investigate possible changes in serum Angptl3, 4, and 8 levels in hypothyroid patients. Methods. The study included 29 patients with clinical hypothyroidism, 30 patients with subclinical hypothyroidism, and 29 healthy subjects. Baseline clinical indices, including serum thyroid function tests, were recorded and serum Angptl3, 4, and 8 levels were measured across the three groups. Results. Serum Angptl3 and 8 levels were significantly higher in the hypothyroid groups compared to the control group (p < 0.05). There were no differences in Angptl4 levels among the three groups (p > 0.05). Positive correlations were identified between Angptl3 and high-density lipoprotein cholesterol (r = 0.431, p < 0.001), and there was a negative correlation between Angptl3 and total tri-iodothyronine (TT3) (r = -0.220, p = 0.047) and free tri-iodothyronine (r = - 0.279, p = 0.013) levels. Angptl8 was positively correlated with triglyceride (r = 0.267, p = 0.012) and cholesterol levels (r= 0.235, p = 0.028) but was negatively correlated with tri-iodothyronine (r = -0.24, p = 0.031). Furthermore, we used receiver operating characteristic curve analysis to evaluate the diagnostic performance of Angptl3 and 8 in discriminating thyroid dysfunction. The area under curve for detecting thyroid dysfunction based on Angptl3 and Angptl8 was 0.763. Conclusions. Our data show that serum Angptl3 and 8 levels are increased in clinical and subclinical hypothyroid patients and that Angptl3 and 8 may serve as possible biomarkers of hypothyroid disease.

scholarly journals Effect of Contrast Media used in Coronary Angiography on Thyroid Function

2019 ◽  
pp. 339-344
Author(s):  
Khaled S. El-Hadidy ◽  
Rania E. Sheir ◽  
M.N. Salem ◽  
Ahmed M. EL-Dien ◽  
Yasser A. Abd El-Hady
Keyword(s):  
Coronary Angiography ◽  
Contrast Media ◽  
Thyroid Function ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Thyroid Stimulating Hormone ◽  
P Value ◽  
Free T4 ◽  
Iodinated Contrast ◽  
Significant Difference

Radiocontrast-induced thyroid dysfunction prevalence has not been assessed accurately. It is greater among patients with pre-existing thyroid disease. Aim of this work to investigate effect of iodinated radiographic contrast media used in coronary angiography on the thyroid function in euthyroid patients. This study was conducted on 85 patients underwent elective coronary angiography. Baseline assessment of Free Thyroxine (FT4) and Thyroid-stimulating hormone (TSH) for the patients and three months later after Coronary Angiography. We observed that there was a statistically significant increase of TSH levels from baseline till 3 months following administration of contrast media (P-value=0.007). However, there was no statistical significant difference of Free T4 level from baseline till 3 (P-value=0.765). The incidence of increased TSH above normal range was 2.4% after 3 months ( 2 subclinical hypothyroidism cases). We noticed that there were no effect of age, gender, hypertension, diabetes, type of contrast, creatinine level or GFR on increased the level of TSH above normal value after 3 months. So, administration of Iodinated Contrast Media (ICM) associated with thyroid dysfunction mainly subclinical hypothyroidism so we should closely monitor patients after receiving ICM especially who have thyroid dysfunction.

scholarly journals Study on Correlation between Lipid Accumulation Product and Thyroid Stimulating Hormone Levels in Hypothyroidism

2021 ◽  
Author(s):  
Sujatha Rajaragupathy ◽  
Jayagowri Karthikeyan ◽  
Egna Mahalekshmi
Keyword(s):  
Waist Circumference ◽  
Lipid Accumulation ◽  
Thyroid Stimulating Hormone ◽  
P Value ◽  
Healthy Controls ◽  
Lipid Accumulation Product ◽  
Triglyceride Concentration ◽  
Hypothyroid Patients ◽  
Tsh Levels ◽  
Stimulating Hormone

Introduction:Cardiovascular Disease (CVD) is one of the established causes of mortality and morbidity in hypothyroid patients. A predictor of cardiovascular risk in hypothyroid patients becomes essential to prevent the occurrence of cardiac event. One such prognosticator of CVD is the Lipid Accumulation Product (LAP). Aim: To compare the trend of LAP scores in hypothyroid patients with that of healthy controls. Materials and Methods: After obtaining approval from the Ethics Committee, this cross-sectional study was conducted. After obtaining written informed consent, details such as age, gender, waist circumference, serum Thyroid Stimulating Hormone (TSH), and serum triglyceride levels were collected.LAP was calculated among study participants as follows: LAP for men={Waist circumference (cm)-65}×{Triglyceride concentration (mmol/L)}.LAP for women={Waist circumference (cm)-58}×{Triglyceride concentration (mmol/L)}. Statistical analysis was performed with Microsoft excel and Statistical Package for the Social Sciences (SPSS) software version 24.0 for Windows. Results: The total number of participants were 118 among which 59 (50%) were hypothyroid cases and 59 (50%) were healthy controls. The two groups had statistically significant difference in their LAP scores. The mean LAP score among cases and controls was 38.6±15.6 cm.mmol/L and 30.9±13.2 cm.mmol/L, respectively with a p-value of 0.004. The LAP scores showed positive correlation with TSH levels with r-value of 0.784 and p-value <0.001 by Pearson’s correlation. Conclusion: The study concludes that there is a significant correlation between LAP score and TSH levels and LAP scores are significantly higher in hypothyroid patients.

scholarly journals Goiter at Diagnosis Might Be Predicting Factor for Early Onset Intractable Graves’ Disease

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A830-A830
Author(s):  
Sungeun Kim ◽  
Goong Ho Nam ◽  
Nayeong Lee ◽  
Seulki Kim ◽  
Moon Bae Ahn ◽  
...  
Keyword(s):  
Early Onset ◽  
Clinical Course ◽  
Thyroid Stimulating Hormone ◽  
P Value ◽  
Thyroid Peroxidase ◽  
Graves Disease ◽  
Thyroid Autoantibody ◽  
Significant Difference ◽  
Predicting Factor ◽  
Stimulating Hormone

Abstract Introduction: The clinical course of Graves’ disease (GD) treated with anti-thyroid drug (ATD) treatment were reviewed with the aim of establishing criteria able to predict intractable GD. Methods: The clinical course of 116 patients with GD who agreed to participate in this study between March 2009 and August 2019 in the pediatric endocrine clinic at Seoul St. Mary’s and St. Vincent’s Hospitals were reviewed. We defined an intractable as hyperthyroidism persistent over 2 years of ATD or relapsed after ATD withdrawal or had been treated ATD for at least 5 years [1-3]. Result: Of 116 patients diagnosed with GD, 37 patients (31.8%) had remission and 79 (68.2%) had intractable GD. Between intractable and remission GD group, there were no significant difference of female percentage, age at diagnosis, thyroid associated ophthalmopathy, serum levels of triiodothyronine (T3), free tetraiodothyronine (T4), Thyroid stimulating hormone (TSH) and positive rate of thyroid autoantibody (Thyroid peroxidase (TPO), Thyroglobulin (Tg), Thyroid stimulating hormone receptor (TSHR)). In intractable GD patients, the frequency of goiter at diagnosis is higher than remission group (89.9% [71/79] and 70.3% [26/37], P-value = 0.014). In correlation analysis, intractable GD showed positive correlation with goiter (R=0.247, P-value = 0.008). In multivariate logistic analyses, goiter is showed strong relationship with intractable GD (odds ratio, 3.793; 95% confidence interval, 1.367-10.524) after adjusting age and sex. Conclusion: Our study supported that goiter at initial presentation might be predicting factor for early onset intractable GD.

Percentile transformation and recalibration functions allow harmonization of thyroid-stimulating hormone (TSH) immunoassay results

2020 ◽  
Vol 58 (10) ◽  
pp. 1663-1672 ◽  
Author(s):  
Andrea Padoan ◽  
Aldo Clerico ◽  
Martina Zaninotto ◽  
Tommaso Trenti ◽  
Renato Tozzoli ◽  
...  
Keyword(s):  
Robust Regression ◽  
Reference Intervals ◽  
Thyroid Stimulating Hormone ◽  
Validation Dataset ◽  
New Approach ◽  
Coefficients Of Variation ◽  
Significant Difference ◽  
Before And After ◽  
Roche Diagnostics ◽  
Stimulating Hormone

AbstractBackgroundThe comparability of thyroid-stimulating hormone (TSH) results cannot be easily obtained using SI-traceable reference measurement procedures (RPMs) or reference materials, whilst harmonization is more feasible. The aim of this study was to identify and validate a new approach for the harmonization of TSH results.MethodsPercentile normalization was applied to 125,419 TSH results, obtained from seven laboratories using three immunoassays (Access 3rd IS Thyrotropin, Beckman Coulter Diagnostics; Architect System, Abbott Diagnostics and Elecsys, Roche Diagnostics). Recalibration equations (RCAL) were derived by robust regressions using bootstrapped distribution. Two datasets, the first of 119 EQAs, the second of 610, 638 and 639 results from Access, Architect and Elecsys TSH results, respectively, were used to validate RCAL. A dataset of 142,821 TSH values was used to derive reference intervals (RIs) after applying RCAL.ResultsAccess, Abbott and Elecsys TSH distributions were significantly different (p < 0.001). RCAL intercepts and slopes were −0.003 and 0.984 for Access, 0.032 and 1.041 for Architect, −0.031 and 1.003 for Elecsys, respectively. Validation using EQAs showed that before and after RCAL, the coefficients of variation (CVs) or among-assay results decreased from 10.72% to 8.16%. The second validation dataset was used to test RCALs. The median of between-assay differences ranged from −0.0053 to 0.1955 mIU/L of TSH. Elecsys recalibrated to Access (and vice-versa) showed non-significant difference. TSH RI after RCAL resulted in 0.37–5.11 mIU/L overall, 0.49–4.96 mIU/L for females and 0.40–4.92 mIU/L for males. A significant difference across age classes was identified.ConclusionsPercentile normalization and robust regression are valuable tools for deriving RCALs and harmonizing TSH values.

scholarly journals High serum cholesterol levels in persons with 'high-normal' TSH levels: should one extend the definition of subclinical hypothyroidism?

1998 ◽  
pp. 141-145 ◽  
Author(s):  
G Michalopoulou ◽  
M Alevizaki ◽  
G Piperingos ◽  
D Mitsibounas ◽  
E Mantzos ◽  
...  
Keyword(s):  
Total Cholesterol ◽  
Serum Cholesterol ◽  
Subclinical Hypothyroidism ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
High Serum ◽  
High Serum Cholesterol ◽  
Cholesterol Levels ◽  
Group D ◽  
Tsh Levels

OBJECTIVE: The association between established hypothyroidism and high cholesterol levels is well known. The aim of the present study was to investigate the effect of thyroxine (T4) administration on cholesterol levels in hypercholesterolemic subjects with TSH levels within the normal range ('high-normal' TSH compared with 'low-normal' TSH). DESIGN AND METHODS: We determined TSH levels in 110 consecutive patients referred for hypercholesterolemia (serum cholesterol >7.5 mmol/l). Those with 'high-normal' TSH (2.0-4.0 microU/ml) as well as those with 'low-normal' TSH (0.40-1.99 microU/ml) were randomly assigned to receive either 25 or 50 microg T4 daily for two months. Thus, groups A and B (low-normal TSH) received 25 and 50 microg T4 respectively and groups C and D (high-normal TSH) received 25 and 50 microg T4 respectively. Serum T4, tri-iodothyronine (T3), TSH, free thyroxine index, resin T3 uptake and thyroid autoantibodies (ThAab) as well as total cholesterol, high and low density lipoprotein cholesterol (HDL, LDL), and triglycerides were determined before and at the end of the two-month treatment period. RESULTS: TSH levels were reduced in all groups. The most striking effect was observed in group D (TSH levels before: 2.77+/-0.55, after: 1.41+/-0.85 microU/ml, P < 0.01). Subjects in groups C and D had a higher probability of having positive ThAabs. A significant reduction in total cholesterol (P < 0.01) and LDL (P < 0.01) was observed after treatment only in group D. In those subjects in group D who were ThAab negative, there was no significant effect of thyroxine on cholesterol levels. CONCLUSIONS: Subjects with high-normal TSH levels combined with ThAabs may, in fact, have subclinical hypothyroidism presenting with elevated cholesterol levels. It is possible that these patients might benefit from thyroxine administration.

scholarly journals Management of thyroid disease in pregnancy – Room for improvement in the first trimester

2016 ◽  
Vol 9 (3) ◽  
pp. 126-129 ◽  
Author(s):  
Helen Robinson ◽  
Philip Robinson ◽  
Michael D’Emden ◽  
Kassam Mahomed
Keyword(s):  
General Practitioner ◽  
Thyroid Function ◽  
Thyroid Disease ◽  
Thyroid Dysfunction ◽  
First Trimester ◽  
Antenatal Clinic ◽  
Thyroid Stimulating Hormone ◽  
Thyroid Function Tests ◽  
In Pregnancy ◽  
Stimulating Hormone

Background First-trimester care of maternal thyroid dysfunction has previously been shown to be poor. This study evaluates early management of thyroid dysfunction in pregnancy in Australia. Methods Patients reviewed by the Obstetric Medicine team for thyroid dysfunction from 1 January 2012 to 30 June 2013 were included. Data were collected on gestation at referral from the patient’s general practitioner to the antenatal clinic, information provided in the referral letter, thyroid function tests and thyroid medications. Results Eighty-five women were included in the study. At the time of general practitioner referral to antenatal services, 19% of women with preexisting thyroid disease had no thyroid function tested. Forty-three percent had an abnormal thyroid-stimulating hormone defined as being outside the laboratory-specific pregnancy reference range if available, or outside the level of 0.1–2.5 mIu/L in the first trimester, 0.2–3.0 mIu/L in the second trimester and 0.3–3.0 mIu/L in the third trimester. Only 21% of women increased their thyroxine dose prior to their first antenatal clinic review. Conclusion This study highlights that a significant proportion of women with known thyroid disease either have untested thyroid function in the first trimester or a thyroid-stimulating hormone outside of levels recommended by guidelines.

A Randomized, Double Blind Clinical Study to Assess the Effects of a Gamma-oryzanol-enriched Rice Bran Oil on Lipid Profile in the Hypercholesterolemic Patients

2021 ◽  
Vol 104 (Suppl. 1) ◽  
pp. S64-S69
Keyword(s):  
Risk Factor ◽  
Cholesterol Level ◽  
Rice Bran ◽  
Serum Cholesterol ◽  
Disease Risk ◽  
Rice Bran Oil ◽  
P Value ◽  
Significant Difference ◽  
Gamma Oryzanol ◽  
The Impact

Background: Hypercholesterolemia is a risk factor for developing coronary artery disease. Lifestyle modification including an intake of healthy food as well as medication have approved effect in lowering serum cholesterol. Objective: The primary objective of the present study was to determine the impact of a gamma-oryzanol-enriched rice bran oil, a product of Thailand, on serum cholesterol level. Materials and Methods: A total of in 54 hypercholesterolemic patients were divided into two groups; RBOh (20,000 ppm of gammaoryzanol, n = 27), and RBOn (5,000 ppm gamma-oryzanol, n = 27). The assigned RBO (15 ml) was intake each day for 8 weeks. Fasting serum lipids were measured at baseline and at the 4th and 8th weeks of the intervention. All patients were advised about lifestyle modifications. Results: When compared to the baseline, subjects received RBOh showed a significant difference in 2 parameters including a reduction of cholesterol level at 8th weeks (p-value = 0.0101), and decrease in LDL-C level at the end of 8th weeks (p-value = 0.0013). In the group treated with RBOn, a significant increase in HDL-C level at the end of 8th weeks (p-value = 0.0303) without any effect on total cholesterol or LDL was observed. No sign of toxic effect on liver or renal functions was seen in both treatment groups. Conclusion: RBO with gamma-oryzanol-enriched could decrease cholesterol and LDL-C level in hypercholesterolemic patients. Therefore, gamma-oryzanol-enriched RBO is a functional food that may reduce cardiovascular disease risk factor. Keywords: Hypercholesterolemia, Rice bran oil, Gamma-oryzanol, Oryza sativa

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