Higher Thyroid-stimulating Hormone Levels Research Articles

Re-Evaluation of the Prevalence of Permanent Congenital Hypothyroidism in Niigata, Japan: A Retrospective Study.

Although newborn screening (NBS) for congenital hypothyroidism (CH) in Japan started more than 40 years ago, the prevalence of CH remains unclear. Prevalence estimations among NBS-positive CH individuals include those with transient hypothyroidism and transient hyperthyrotropinemia, and re-evaluation with increasing age is necessary to clarify the actual incidence. Thus, we re-evaluated the incidence of permanent CH. Of the 106,114 patients who underwent NBS in the Niigata Prefecture, Japan, between April 2002 and March 2006, 116 were examined further due to high thyroid-stimulating hormone levels (>8 mIU/L) and were included in the study. We retrospectively evaluated their levothyroxine sodium (LT4) replacement therapy status from the first visit to 15 years of age. Of the 116 NBS-positive patients, 105 (91%) were initially examined in our department. Of these, 72 (69%) started LT4 replacement therapy on the first visit. Subsequently, 27 patients continued LT4 replacement until 15 years of age after multiple re-evaluations. The prevalence of permanent CH in the Niigata Prefecture during this period was 1 in 2500–3500 children. Ultimately, 62.5% of patients on LT4 replacement discontinued treatment by 15 years of age. This is the first study to clarify the true prevalence of permanent CH in Japan.

Depression and anxiety at time of implantable cardioverter defibrillator implantation and the biological link with cardiovascular disease

Abstract Funding Acknowledgements Type of funding sources: None. Background Psychological distress, such as symptoms of anxiety and depression, are frequently present in patients receiving an implantable cardioverter defibrillator (ICD) and they are associated with adverse outcomes. Multiple pathophysiological mechanisms may explain the link between psychological distress and cardiovascular disease, such as autonomic dysfunction, neuro-endocrine alterations and chronic inflammation. Purpose The present study aims to examine the prevalence of psychological distress at time of ICD implantation and evaluates the complex interplay between psychological distress, autonomic function, neuro-endocrine alterations and inflammatory status in ICD patients. Methods We conducted a prospective study that included ICD patients receiving an ICD for primary and secondary prevention of sudden cardiac death. Prior to implantation, patients underwent extensive psychological evaluation, including validated questionnaires for depression, anxiety and personality traits. Cardiac status was evaluated by left ventricular ejection fraction (LVEF) assessment, New York Heart Association (NYHA) functional class evaluation, 6-minute walk test (6MWT), and 24-hour Holter monitoring for heart rate variability (HRV). Thyroid function, catecholamine levels and inflammatory status were also evaluated. Results Of 178 patients included (age 64 ± 12, 79% male, LVEF 35 ± 13%), 35% had symptoms of depression and 32% had symptoms of anxiety. Symptoms of depression and anxiety increased significantly with higher NYHA functional class (P < 0.001). Depressive symptoms were associated with a reduced 6MWT (411 ± 128 m versus 488 ± 89 m, P < 0.001), lower LVEF (29 ± 9% versus 36 ± 13%, P = 0.03), higher heart rate (74 ± 13 bpm versus 70 ± 13 bpm, P = 0.02), higher thyroid stimulating hormone levels (1.8 [1.3-2.8] mU/L versus 1.5 [1.0-2.2] mU/L, P = 0.04) and multiple HRV parameters, indicating reduced HRV. Anxiety symptoms were only associated with a reduced 6MWT (433 ± 112 m versus 477 ± 102, P = 0.02). Symptoms of depression or anxiety were not correlated with c-reactive protein, NT-proBNP or catecholamine levels. Conclusion A substantial part of ICD patients has symptoms of depression and anxiety at time of ICD implantation. Depression was correlated with a higher NYHA class, reduced exercise capacity, reduced LV-function and alterations in autonomic function, suggesting a biological link between depression and cardiac status. Whether depression and anxiety leads to an increase in ventricular arrhythmias will be determined during further follow-up. Abstract Figure. NYHA class and psychological distress

Risk factors for hypothyroidism and thyroid hormone replacement after hemithyroidectomy in papillary thyroid carcinoma.

Thyroid lobectomy is now preferred over total thyroidectomy to preserve thyroid function and reduce complications in patients with low-risk papillary thyroid carcinoma (PTC). One inevitable consequence of thyroidectomy includes hypothyroidism. This study aimed to evaluate the risk factors for hypothyroidism and thyroid hormone replacement after hemithyroidectomy in patients with PTC. We retrospectively studied 353 patients with PTC who underwent hemithyroidectomy with or without central neck dissection from January 2012 to January 2019. We excluded patients who had hypo- or hyperthyroidism preoperatively and those who underwent total or subtotal thyroidectomy. We analyzed various risk factors related to postoperative hypothyroidism and thyroid hormone supplementation. Of the patients, 54.7% showed hypothyroidism after hemithyroidectomy (n=193 with n=157, subclinical hypothyroidism; n=36, overt hypothyroidism). Ninety-one percent of postoperative hypothyroidism cases developed within 7 months postoperatively. Eventually, 43.1% (n=152) of patients received levothyroxine after hemithyroidectomy. Preoperative high thyroid-stimulating hormone (TSH) level and low free thyroxine (fT4) level were significantly associated with postoperative hypothyroidism and the need for thyroid hormone supplementation postoperatively. Preoperative TSH and fT4 levels are predictive risk factors of hypothyroidism and need for supplementation of levothyroxine after hemithyroidectomy in patients with PTC. Finally, approximately 43% of patients need levothyroxine supplementation after hemithyroidectomy, and individual preoperative counseling is necessary for these patients.

Untreated primary hypothyroidism presenting as two rare syndromes

The association of chronic untreated primary hypothyroidism, delayed skeletal growth, and isosexual incomplete precocious puberty together describes Van Wyk Grumbach syndrome (VWGS). Sporadic case reports of this syndrome have been reported. Laboratory investigations reveal high levels of thyroid-stimulating hormone and delayed bone growth. VWGS has seldom been reported in a case of cerebral palsy. Here, we present the cases of two girls aged 11 years and 8 years who presented to our hospital with VWGS, one of whom was a case of spastic quadriparesis cerebral palsy. They were started on thyroxine supplements and showed favorable outcomes, thus emphasizing the importance of recognizing these rare manifestations of hypothyroidism, which on treatment show reversal to the prepubertal state.

A Comparative Study on the Association of Hypothyroidism with Adhesive Capsulitis of Shoulder

Objective: Adhesive capsulitis (AC) is a pathologic condition characterized by pain and limitation of shoulder movements. Thyroid dysfunction often accompanies musculoskeletal disorders, and undiagnosed hypothyroidism can delay response to treatment outcomes. Early diagnosis and treatment of hypothyroidism in patients with AC of shoulder could help to improve pain and disability. This study was done to assess the association of hypothyroidism with AC of shoulder and to find the correlation of severity of pain and disability in AC with hypothyroidism. MATERIALS AND METHODS: In this case–control study, patients who attended PMR OPD during a period of 2 years with pain and limitation of shoulder movements satisfying the inclusion and exclusion criteria were included as cases and patients without AC as controls. Fifty-seven patients were selected as cases and 114 patients as controls. Serum thyroid-stimulating hormone (TSH) level and free tetraiodothyronine level were estimated. Shoulder range of motion (ROM) measurement and radiographs were performed in cases, and the TSH values obtained were compared with the severity of ROM restriction, Visual Analog Scale score, and Shoulder Pain and Disability Index Scale (SPADI) score. Statistical analysis was done using IBM SPSS 20 (SPSS Inc., Chicago, IL, USA). RESULTS: Among cases, 8 (14%) patients had hypothyroidism and 16 (28.1%) had subclinical hypothyroidism, and among controls, 4 (3.5%) had hypothyroidism and 9 (7.9%) had subclinical hypothyroidism. Among the 24 patients with elevated TSH, 16 (66.6%) had mild-to-moderate pain and 8 (33.3%) had severe pain. Mean TSH was elevated in patients with severe pain compared with those with mild-to-moderate pain (5.43 ± 2.31 vs. 3.35 ± 2.48 µIU/mL, P = 0.031). TSH levels showed a positive correlation with SPADI pain score (r =0.335, P = 0.011) and SPADI disability score (r = 0.375, P = 0.004), respectively. There was significant restriction in ROM in patients with higher TSH levels (P < 0.001). CONCLUSION: Patients with AC have higher prevalence of hypothyroidism and subclinical hypothyroidism compared with those who did not. Patients with higher TSH levels had more severe pain, restriction of movement, and overall disability when compared with euthyroid patients. Proper management of hypothyroidism along with the standard measures of management may result in more speedy relief from symptoms and recovery of function in these patients.

Association between preoperative serum TSH and tumor status in patients with papillary thyroid microcarcinoma.

Thyroid-stimulating hormone (TSH) is a growth factor affecting the initiation or progression of papillary thyroid cancer (PTC). However, the relationship between preoperative serum TSH and papillary thyroid microcarcinoma (PTMC) remains controversial. To investigate the relationship between preoperative serum TSH and tumor status of PTMC, a multicentered retrospective study was performed from January 2014 to December 2016. The cohort of this study consisted of 1997 patients who underwent thyroid surgery. Serum TSH concentrations were measured and PTMC was diagnosed based on the post-operation pathological report. Results showed that the preoperative serum TSH concentration was not related to age and gender but was positively associated with tumor size. Furthermore, higher TSH level was associated with extra-thyroidal extension and lymph node metastasis (LNM). These results indicated that TSH might not be involved in the development of PTMC but may be associated with PTMC progression. Preoperative serum TSH concentration should be considered as risk predictor for tumor progression in patients with PTMC.

Cognitive Impairment and Associated Factors Among Adult Hypothyroid Patients in Referral Hospitals, Amhara Region, Ethiopia: Multicenter Cross-Sectional Study.

BackgroundCognitive impairment is a common complication of hypothyroidism that affects the patient’s quality of life in different aspects. In Ethiopia, though the prevalence of hypothyroidism is high the magnitude of cognitive impairment among these patients is not known. Therefore, the current study is aimed at determining the prevalence of cognitive impairment and associated factors among adult hypothyroid patients.MethodsAn institution-based cross-sectional study was employed from February 24 to May 22, 2020, to assess the prevalence of cognitive impairment and associated factors among adult hypothyroid patients. Data was collected by a pretested interviewer-administered structured questionnaire and standardized Mini-mental state examination (SMMSE) tool. A cluster sampling technique was used. Data was entered into Epidata version 4.6 and exported into a statistical package for social science (SPSS) version 25 for further analysis. Both bivariable and multivariable logistic regression analyses were done. A 95% confidence interval and P-value <0.05 were used to declare statistical significance.ResultsA total of 216 adult hypothyroid patients were included with a response rate of 98.6%. The mean age was 42.5 (± 11) years. The prevalence of cognitive impairment was 27.3% (95% CI (21.7, 33.8)) and it was significantly associated with increased age (AOR = 1.23, 95% CI (1.11, 1.34)), increased duration of illness (AOR = 1.48, 95% CI (1.14, 1.90)) and high thyroid-stimulating hormone (TSH) level (AOR = 1.3, 95% CI (1.1, 1.6)).ConclusionThe prevalence of cognitive impairment among hypothyroid patients was high. Increased age, increased duration of illness and high TSH levels were significantly associated with cognitive impairment. Hence, early screening of cognitive impairment among hypothyroid patients with increased age, increased duration of illness and high TSH level should be given due emphasis to increase patients quality of life.

The prevalence and related factors of metabolic syndrome in outpatients with first-episode drug-naive major depression comorbid with anxiety

Metabolic syndrome (MetS) is associated with depression, but its role in major depressive disorder comorbid with anxiety (AMD) is unclear. This study aimed to investigate the prevalence and clinical correlates of MetS in first-episode drug-naive (FEDN) patients with AMD in a Chinese Han population. In total, 1380 FEDN outpatients with AMD were recruited in this cross-sectional study. The sociodemographic features, clinical characteristics, history of suicide attempts, thyroid-stimulating hormone (TSH) levels, and MetS parameters of each subject were evaluated. All subjects were rated on the Hamilton Depression Rating Scale (HAM-D), Hamilton Anxiety Rating Scale (HAM-A), and the Positive and Negative Syndrome Scale positive symptom subscale. The prevalence of MetS among AMD patients was 8.04%. Compared to the non-MetS group, age, age of onset, TSH level, HAM-A and HAM-D scores, history of attempted suicide, and comorbid psychiatric symptoms were higher in the MetS group. Those in this group were also more likely to be married, and they had a lower educational level. Furthermore, age, psychiatric symptoms, suicide attempts, and higher TSH levels were independently associated with MetS in AMD patients. This study suggests a lower prevalence of MetS in FEDN patients with AMD in a Chinese Han population. Older age, comorbid psychiatric symptoms, history of attempted suicide, and higher TSH levels are related factors for MetS in AMD patients.

Depression Level Among Thyroid Disorder Patients and Its Correlation

Objective: Patients with thyroid disorders were found to experience depression due to several factors. The aims of this study was to measure depression level among thyroid disorder patients and examine the correlation between depression and Thyroid Stimulating Hormone (TSH) and free Thyroxine (fT4), stressful life events and social support level. Methods: A cross sectional study was carried out at one of the non-profit hospital at central region of Peninsular Malaysia. 153 thyroid patients were selected by using simple random sampling technique. The ethical approval was sought from IIUM Research Ethics Committee (IREC563) and the Medical Research and Ethics Committee (MREC) (NMRR-15-2127-28667). Several tools were used in this study including Depression Anxiety Stress Scale-42 (DASS-42), list of Life Threatening Experiences (LTE), Multidimensional Scale of Perceived Social Support (MSPSS); and Thyroid Function Test including TSH and fT4 were reviewed from the patient’s file. A correlation test was used to analyse the data by using SPSS version 21.0. Results: About 15% (n=23) out of 153 thyroid disorder patients had varies degree of depression (males - 7.8% (n=3) and females – 17.3% (n=20)). Also, there were positive correlation between depression and TSH (r=0.235, p=0.03), stressful life events (r=0.264, p=0.001) and negative correlation (r=-0.068, p=0.402) with perceived social support from family. Conclusion: These findings suggested that thyroid disorder patients had depression and the factors associated with depression were high TSH level, recent stressful life events and low social support from the family. These factors can be considered while assessing thyroid disorder patients who had symptoms of depression.

The association between anxiety and depression with 25(OH)D and thyroid stimulating hormone levels.

To evaluate the relationships between the serum levels of these parameters and mood disorders, including depression and anxiety. One hundred and fifty patients (77 with anxiety and 73 with depression), aged 18 to 79 years old, who were referred to the Neuro Psychiatry Clinic of Uskudar University in Istanbul, Turkey were included in this study from June 2018 to December 2018. According to the Beck Anxiety Inventory and Beck Depression Inventory II results, the anxiety patients met the mild and moderate anxiety criteria and the depression patients met the moderate and severe depression criteria, respectively. Venous blood samples were collected after overnight fasting, and the 25(OH)D and thyroid stimulating hormone (TSH) levels were measured. The data showed a significantly higher TSH level in the females when compared to their male counterparts in the severe depression subgroup (p=0.011). A serum TSH evaluation may be considered as a useful biochemical marker for more efficient depression management.

Hypercholesterolemia Is an Associated Factor for Risk of Differentiated Thyroid Cancer in Chinese Population.

BackgroundHyperlipidemia has been hypothesized as a risk factor for thyroid cancer. However, the association between hypercholesterolemia and thyroid cancer is unclear, especially in Chinese population without available published data. We conducted this study to investigate the relationship between hypercholesterolemia and differentiated thyroid cancer (DTC) in Chinese population.MethodsThree thousand seven hundred forty-eight patients were enrolled in the study, including 2,021 DTC patients and 1,727 benign subjects with benign thyroid nodules. Demographic characteristics, medical history, and clinical hematological examination were collected. Stratified analyses of association between hypercholesterolemia and risk of DTC were done. Multivariable logistic regression models were used to estimate the association between hypercholesterolemia and the risk of thyroid nodules being malignant. This study protocol was approved by the ethics committee of Shandong Provincial Qianfoshan Hospital and assigned in ClinicalTrials.gov protocol registration and results system (NCT03006289, https://clinicaltrials.gov/ct2/show/NCT03006289).ResultsThe level of serum total cholesterol in patients with DTC is higher than that in benign subjects (P < 0.001). After adjusting hypercholesterolemia, age (P < 0.001), triglyceride (P = 0.003), and thyroid stimulating hormone (TSH) (P < 0.001) are found to be confounding factors. The risk of DTC in patients younger than 45 years old is 2.08 times than that of patients older than 45 years old (odds ratio = 0.48, 95% CI (0.38, 0.61), P < 0.001). A high TSH level is highly associated with the increased risk of DTC (P < 0.001). The multivariable logistic regression analysis revealed that the absence of hypercholesterolemia could reduce the risk of thyroid nodules being malignant (odds ratio = −0.75, 95% CI (−1.39, −0.12), P = 0.02). Comparing to the higher level of serum total cholesterol (>5.7 mmol/L), the closer the serum total cholesterol level is to normal (3.17–5.7 mmol/L), the less the risk of thyroid nodules being malignant is, and this difference is statistically significant (odds ratio = −0.67, 95% CI (−1.31, −0.03), P = 0.040). However, this difference is not found in the group of patients with lower level of total cholesterol (<3.17 mmol/L, odds ratio = 0.43, 95% CI (−1.22, 2.09), P = 0.068), suggesting that hypocholesterolemia is not a protective factor in the risk of thyroid nodules being malignant.ConclusionsHypercholesterolemia is an associated factor for risk of DTC in Chinese population.

Burnout and metabolic syndrome among healthcare workers: Is subclinical hypothyroidism a mediator?

ObjectivesEvidence suggests that subclinical hypothyroidism (SCH) is associated with burnout and metabolic syndrome (MetS). We examined the relationship between burnout and MetS among healthcare workers (HCWs) and investigated the potential mediation of SCH.MethodsThis cross‐sectional study included HCWs from a tertiary medical center; demographic data were obtained using a questionnaire. Burnout was evaluated according to the Chinese version of the Maslach Burnout Inventory–Health Services Survey (MBI–HSS). MetS and thyroid function data were obtained from a physical check‐up. Logistic regression models were used to evaluate the adjusted odds ratio (aOR), and mediation analysis was employed to examine the mediation effect.ResultsAmong 945 non‐doctor/nurse and 1868 doctor/nurse staff, MetS was 30% and 14%, respectively, and the prevalence of burnout was nearly 6.5%. The results showed that burnout induced higher aOR of MetS in the doctor/nurse group (1.27, 95% confidence interval [CI]: 1.05‐3.62). Thyroid‐stimulating hormone (TSH) showed a positive association factor of MetS in doctor/nurse group‐adjusted burnout (aOR = 1.15, 95% CI: 1.01‐4.19). A higher TSH level was associated with an increased odds of MetS in younger doctor/nurse staff with burnout syndrome (aOR = 1.74; 95% CI: 1.04‐3.22). There was a borderline significant mediation effect of SCH in the association between burnout and MetS in doctor/nurse staff.ConclusionsThe results showed that higher TSH levels were positively associated with burnout and MetS in doctor/nurse professionals, especially in the young cohort. Burnout may rely on the borderline mediation effect of SCH, which is likely to affect MetS.

Evaluation of thyroid function and thyroid autoimmune disease in patients with non-alcoholic fatty liver disease.

Aim of the studyEvaluation of thyroid function and thyroid autoimmunity in patients with non-alcoholic fatty liver disease (NAFLD).Material and methodsA case control study. Fifty patients with NAFLD and 50 control subjects matched by gender and age were recruited. Serum thyroid stimulating hormone (TSH) and free thyroxine (FT4) were measured to assess thyroid function. Thyroid autoimmune disease was evaluated by measuring thyroid peroxidase antibody (TPOAb) and anti-thyroglobulin antibodies (TgAb). The FIB-4 score and the APRI score were calculated to assess the degree of fibrosis. The association between thyroid parameters and NAFLD was explored.ResultsAbout one quarter of patients with NAFLD had hypothyroidism compared to 10% of the control group whilst 6% of NAFLD patients had hyperthyroidism compared to 2% of the controls. NAFLD cases showed substantially higher TSH and lower FT4 compared to controls; meanwhile, levels of fibrosis indices (FIB-4 and APRI score) were significantly higher among hypothyroid patients in both cases and controls. TSH had a positive strong correlation with FIB-4 and APRI score, whereas FT4 had a negative significant correlation with both fibrosis indicators, and this clinical relationship was similar in NAFLD cases and controls.ConclusionsHypothyroidism is more prevalent among patients with NAFLD compared to controls and high levels of TSH with low FT4 might be a risk factor for NAFLD and may impact the development of liver fibrosis. The role of thyroid autoimmunity in NAFLD needs further assessment. NAFLD patients should be monitored by yearly TSH and FT4 testing.

ENDOCRINE DISTURBANCES INDUCED BY LOW-DOSE ORGANOPHOSPHATE EXPOSURE IN MALE WISTAR RATS.

Organophosphate exposure induces many endocrine effects. In this study we observed the effects of acute stress induced by cholinesterase inhibition on the main hormonal axes. We included thirteen weanling Wistar rats that were subjected to organophosphate exposure. They were first tested for baseline levels of butyrylcholinesterase, cortisol, free triiodothyronine, thyroxine, thyroid-stimulating hormone and prolactin. Secondly, chlorpyrifos was administered. Next samples were taken to determine the level of all the above-mentioned parameters. Butyrylcholinesterase was significantly decreased after exposure (p<0.001). Cortisol levels were significantly higher after clorpyrifos administration (358.75±43 vs. 241.2±35 nmoL/L)(p<0.01). Although prolactin had a growing trend (450.25±24.65 vs. 423±43.4 uI/mL), the results were not statistically significant. Both free triiodothyronine and thyroxine were significantly higher after exposure. Surprisingly, thyroid-stimulating hormone level almost doubled after exposure with high statistical significance (p<0.001), suggesting a central stimulation of thyroid axis. Butyrylcholinesterase level was proportional with thyroid-stimulating hormone level (p=0.02) and thyroxine level was inversely correlated to the cortisol level (p=0.01). Acute cholinesterase inhibition may induce high levels of cortisol, free triiodothyronine, thyroxine and thyroid-stimulating hormone. From our knowledge this is the first study dedicated to the assessment of acute changes of hormonal status in weanling animals after low-dose organophosphate exposure.Conclusion. Acute cholinesterase inhibition may cause acute phase hormonal disturbances specific to shocked patients.

Association between blood lead levels and metabolic syndrome considering the effect of the thyroid-stimulating hormone based on the 2013 Korea National health and nutrition examination survey.

Imbalances in thyroid-stimulating hormone (TSH) levels are associated with metabolic syndrome (MetS), and the underlying mechanism is partly in alignment with that of lead exposure causing MetS. Many studies have reported the association between lead exposure and MetS, but no study has considered the possibility of TSH mediating lead's effect on MetS. Therefore, we aimed to examine the association between lead exposure and MetS considering TSH as a partial mediator. The data of 1,688 adults (age ≥19 years) from the Korea National Health and Nutrition Examination Survey in 2013 were analyzed. The prevalence of MetS in the Korean population was 21.9%, and the geometric mean of blood lead and serum TSH levels were 1.96 μg/dL and 2.17 μIU/mL, respectively. The associations between blood lead levels, serum TSH levels, and MetS were determined through a multiple logistic regression analysis. Blood lead levels were positively associated with high TSH levels (upper 25%) with an odds ratio (OR) and 95% confidence interval (CI) of 1.79 (1.24, 2.58) per doubled lead levels. The increase in blood lead and serum TSH levels both positively increased the odds of developing MetS. The OR of MetS per doubling of blood lead level was 1.53 (1.00, 2.35), and was not attenuated after adjusting for TSH levels. These findings suggest that higher levels of blood lead are positively associated with serum TSH levels and MetS. By exploring the role of TSH as a partial mediator between lead and MetS, we verified that lead exposure has an independent relationship with MetS, regardless of TSH levels.

Positive Thyroid Peroxidase Antibody and Thyroglobulin Antibody are Associated With Better Clinicopathologic Features of Papillary Thyroid Cancer

ObjectiveTo compare the thyroid autoantibody status of patients with papillary thyroid cancer (PTC) and benign nodular goiter as well as possible associations between thyroid autoantibodies and clinicopathologic features of PTC. MethodsA total of 3934 participants who underwent thyroidectomy were enrolled in this retrospective study. Patients were divided into PTC and benign nodule groups according to pathological diagnosis. Based on the preoperative serum antibody results, PTC patients were divided into thyroid peroxidase antibody (TPOAb)-positive, thyroglobulin antibody (TgAb)-positive, dual TPOAb- and TgAb-positive, or antibody-negative groups. ResultsOf the 3934 enrolled patients, 2926 (74.4%) were diagnosed with PTC. Multivariate regression analyses suggested that high thyroid-stimulating hormone levels (adjusted odds ratio [OR] = 1.732, 95% CI [1.485-2.021], P < .001), positive TgAb (adjusted OR = 1.768, 95% CI [1.436-2.178], P < .001), and positive TPOAb (adjusted OR = 1.452, 95% CI [1.148-1.836], P = .002) were independent risk factors for predicting malignancy of thyroid nodules. Multinomial multiple logistic regression analyses indicated that positive TPOAb alone was an independent predictor of less central lymph node metastasis in PTC patients (adjusted OR = 0.643, 95% CI [0.448-0.923], P = .017), whereas positive TgAb alone was significantly associated with less extrathyroidal extension (adjusted OR = 0.778, 95% CI [0.622-0.974], P = .028). PTC patients with dual-positive TPOAb and TgAb displayed a decreased incidence of extrathyroidal extension (adjusted OR = 0.767, 95% CI [0.623-0.944], P = .012) and central lymph node metastasis (adjusted OR = 0.784, 95% CI [0.624-0.986], P = .037). ConclusionAlthough preoperative positive TPOAb and TgAb are independent predictive markers for PTC, they are also associated with better clinicopathologic features of PTC.

The Role of Thyroid Hormones and Autoantibodies in Metabolic Dysfunction Associated Fatty Liver Disease: TgAb May Be a Potential Protective Factor.

BackgroundPrevious studies have shown that metabolic dysfunction associated fatty liver disease (MAFLD) is associated with thyroid hormones (THs), immunity, and inflammation status, but few studies involved thyroid autoimmunity. This study aimed to evaluate the role of THs, thyroid autoantibodies, inflammatory biomarkers in MAFLD, its cofactors, and other possible determinants.Materials and MethodsIn the study, a total of 424 Chinese patients were selected and categorized as non-MAFLD and MAFLD. Serum thyroid hormone, thyroid autoantibody and high-sensitive C-reactive protein (hsCRP) levels were measured. The data of blood pressure, the serum lipid profile, glucose and liver enzymes were collected. The differences and association between research findings were examined and analyzed by Wilcoxon Signed Rank Test, One-Way ANOVA test and Multiple Logistic Regression models.ResultsThe study showed significant increase in the prevalence of MAFLD with high thyroid stimulating hormone (TSH) levels (P < 0.01) and abnormal high-sensitive C-reactive protein (hsCRP) levels (P < 0.01). The proportion of MAFLD patients decreased significantly with the rise of free thyroxine (FT4) (P = 0.04), thyrotropin receptor antibodies (TRAb) (P < 0.01), anti-thyroglobulin antibodies (TgAb) (P < 0.01), and thyroid peroxidase antibodies (TPOAb) levels (P < 0.01). Based on logistic regression analysis, MAFLD was significantly associated with lower levels of TgAb (P < 0.01), TPOAb (P < 0.01), and higher levels of hsCRP (P < 0.01) in male. In female, elevated TgAb (P < 0.01) may be a protective factor, while higher levels of hsCRP (P < 0.01) showed increased risk of MAFLD. Logistic models were adjusted for age, BMI, SBP, DBP, FBG, ALT, AST, TC, TG, LDL, HDL.ConclusionsTaken together, TgAb may be a potential protective factor for MAFLD and elevated hsCRP level should be considered as an independent risk factor for MAFLD in both genders. TPOAb also demonstrated protective effect, but only in male. The prevalence of MAFLD increased with higher TSH levels and lower FT4, TRAb levels, but no significant association were found. However, Our findings provide a new insight into the pathogenesis of MAFLD by further investigating the impact of THs, thyroid autoimmunity, and inflammation on MAFLD patients.

Reproductive Outcomes in Cases of Subclinical Hypothyroidism and Thyroid Autoimmunity: A Narrative Review.

Thyroid diseases are relatively common in women in the reproductive period. It is currently understood that clinically-evident thyroid disorders may impair ovulation and, consequently, fertility. However, to date it has not been proven that high serum levels of thyroid-stimulating hormone and/or positivity for antithyroid antibodies are associated to a reduction in fertility, mainly in the absence of altered thyroxine levels. The present comprehensive review aims to present current data on the association between subclinical hypothyroidism and/or thyroid autoimmunity and reproductive outcomes.

Thyroid Functions in Children on Levetiracetam or Valproic Acid Therapy

AbstractThe aim of this study was to investigate the thyroid functions in children receiving levetiracetam or valproate monotherapy. We retrospectively reviewed the records of children with controlled epilepsy receiving valproic acid (VPA group) or levetiracetam monotherapy (LEV group) for at least 6 months. Free thyroxine 4 levels (fT4) and thyroid stimulating hormone (TSH) levels were compared between VPA group, LEV group, and age- and gender-matched healthy children (control group). A total of 190 children were included in the study: 63 were in the VPA, 60 in the LEV, and 67 in the control group. Although there was no significant difference regarding average fT4 levels, higher TSH levels were found in the VPA group when compared with the LEV and control groups (p &lt; 0.001 and p &lt; 0.001, respectively). There was no significant difference in terms of fT4 and TSH values in the LEV group when compared with the control group (p = 0.56 and p = 0.61, respectively). Subclinical hypothyroidism (defined as a TSH level above 5 uIU/mL with a normal fT4 level was detected in 16% of patients in the VPA group, none in the LEV and control groups. Our study found that VPA therapy is associated with an increased risk of subclinical hypothyroidism while LEV had no effect on thyroid function tests.

Use of a Novel Thyroid-Stimulating Hormone Model for Predicting the Progression of Hepatocellular Carcinoma.

BackgroundIndividuals with hepatocellular carcinoma (HCC) are at risk of tumor recurrence after surgical resection, which affects their survival. The aim of the present study was to establish a model for predicting tumor progression in patients with HCC.MethodsTo develop and validate the efficacy of a novel prognostic model, a retrospective cohort with HCC (n = 1005) at Beijing Ditan Hospital was enrolled from January 2008 and June 2017. Furthermore, a prospective cohort (n = 77) was recruited to validate the association between thyroid-stimulating hormone (TSH) levels and tumor progression in patients with HCC.ResultsThe model used in predicting the progression of HCC included four variables (namely, Barcelona Clinic Liver Cancer [BCLC] stage, presence of portal vein tumor thrombus, alpha-fetoprotein level, and TSH level). The AUROC of the 1-year progression-free survival (PFS) model was 0.755 and 0.753 in the deriving cohort and validation cohort, respectively, and these values were significantly higher than those of the Child–Pugh score, Model for End-stage Liver Disease (MELD), tumor–lymph node–metastasis (TNM) staging system, Okuda classification, and CLIP score. A simple assessment using a nomogram showed the 1-year PFS rate of patients with HCC. In the prospective cohort, the KM curve showed that the high TSH level group had a shorter PFS than the low TSH level (p = 0.001).ConclusionThe prognostic model of HCC progression was superior to other well-known classical tumor scoring systems. A high TSH level was correlated to poor outcome, particularly those with advanced HCC.