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Objective
Hyperthyroidism, a prevalent endocrine disorder, can lead to complications such as liver failure due to the liver's essential role in thyroid hormone metabolism. The study aimed to elucidate the respective contributions of 131I and/or ALSS in managing hyperthyroidism alongside liver failure.
Methods
A retrospective analysis was carried out on 74 patients diagnosed with severe liver failure in the context of Graves' disease. Patients were categorized into three groups: group A (n = 34) received 131I treatment, group B (n = 17) underwent 131I and ALSS treatment, and group C (n = 24) received artificial liver support system (ALSS) treatment alone.
Results
Throughout the treatment period, the liver function indexes in all groups exhibited a declining trend. The thyroid function of group A and group B treated with 131I was significantly improved compared to that before treatment. There was no significant change in thyroid function in group C. After the correction of hyperthyroidism, significant improvements were observed in the liver function of individuals in groups A and B, particularly with more noticeable amelioration compared to group C. After two months of treatment, the efficacy rates for the three groups were 79.41%, 82.35%, and 60.87% respectively. Mortality rates of the three groups were 5.88%, 17.65%, and 36% (P < 0.01). Group B, receiving both 131I and ALSS treatments, exhibited a lower mortality rate than group C.
Conclusion
In cases of severe liver failure accompanied by hyperthyroidism, prompt administration of 131I is recommended to alleviate the adverse effects of hyperthyroidism on liver function and facilitate a conducive environment for the recovery of liver functionality.
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Primary hyperparathyroidism has emerged as a prevalent endocrine disorder in clinical settings, necessitating in most cases, surgical intervention for the removal of the diseased gland. This condition is characterised by overactivity of the parathyroid glands, resulting in excessive parathyroid hormone production and subsequent disturbances in calcium homeostasis. The primary mode of management is surgical treatment, relying on the accurate localisation of the pathological parathyroid gland. Precise identification is paramount to ensuring that the surgical intervention effectively targets and removes the diseased gland, alleviating the hyperfunctioning state. However, localising the gland becomes challenging, as discrepancies between the clinical manifestation of active parathyroid and radiological identification are common. Based on our current knowledge, to date, no comprehensive review has been conducted that considers all factors collectively. This comprehensive review delves into the factors contributing to false-negative 99mTc-Sestamibi scans. Our research involved an exhaustive search in the PubMed database for hyperparathyroidism, with the identified literature meticulously filtered and reviewed by the authors. The results highlighted various factors, including multiple parathyroid diseases, nodular goitre, mild disease, or the presence of an ectopic gland that causes discordance. Hence, a thorough consideration of these factors is crucial during the diagnostic workup of hyperparathyroidism. Employing intraoperative PTH assays can significantly contribute to a successful cure of the disease, thereby providing a more comprehensive approach to managing this prevalent endocrine disorder.
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Department of Gynaecology, Obstetrics and Neonatology, First Faculty of Medicine Charles University and General University Hospital in Prague, Prague, Czech Republic
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Introduction
Maternal urinary iodine concentration and blood neonatal thyroid-stimulating hormone (TSH) concentration reflect iodine status in pregnancy and serve as markers of iodine deficiency. As dietary measures in gestational diabetes mellitus (GDM) could affect iodine intake, our study aimed to investigate iodine supply in women with GDM compared to healthy pregnant women and to evaluate its relationship to maternal and neonatal thyroid function.
Methods
Urinary iodine concentration (UIC) and serum TSH, free thyroxine (FT4), and autoantibodies against thyroid peroxidase (TPOAb) were analyzed in 195 women with GDM and 88 healthy pregnant women in the second trimester. Subsequently, neonatal TSH concentrations measured 72 h after delivery in a subgroup of 154 newborns (115 of mothers with GDM and 39 controls) from the national register were analyzed.
Results
Median UIC was significantly lower in women with GDM compared to controls (89.50 µg/L vs. 150.05 µg/L; P < 0.001). Optimal iodine intake was found only in nine women with GDM (4.6%) and 33 healthy pregnant women (37.5%) (P < 0.001). Most pregnant women with GDM (88.7%) compared to one half of controls (50%) had iodine deficiency (P < 0.001). Although serum TSH and the prevalence of hypothyroidism (TSH > 4.0 mIU/L) were not different in both groups, hypothyroxinaemia was more prevalent in GDM compared to controls (12.3% vs 3.4%, P = 0.032). Consistently, neonatal TSH > 5.0 mIU/L indicating iodine deficiency, was found in 6 (5.2%) newborns of women with GDM as compared to none in controls. In women with GDM, the prevalence of perinatal complications was significantly lower in those who were taking dietary iodine supplements compared to those who were not (3/39 (7.69%) vs 46/156 (28.85%), P <0.001). In the multiple logistic and linear regression models in women with GDM, hypothyroxinaemia was associated with preterm births, and a negative association of serum FT4 and HbA1c was found.
Conclusion
Iodine deficiency in pregnancy was more prevalent among women with GDM compared to healthy pregnant controls. Serum FT4 negatively correlated with HbA1c, and hypothyroxinaemia was associated with preterm births in women with GDM. Conversely, women with GDM who used dietary iodine supplements had a lower risk of perinatal complications.
Diabetes and Endocrine Unit, National Hospital, Kandy, Sri Lanka
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Refractory hypothyroidism is associated with high morbidity and increased healthcare expenditure. In general, the use of the levothyroxine absorption test looks promising in evaluating refractory hypothyroidism but has shown significant variability in protocols in multiple settings. We intended to assess the usefulness of the levothyroxine absorption test in a low-resource setting and to assess the factors associated with refractory hypothyroidism. A cross-sectional study among age-matched 25 cases of refractory hypothyroidism and 24 treatment-responsive hypothyroid controls was conducted. A supervised levothyroxine absorption test was performed with levothyroxine 1000 μg tablets after a 10-h fast, and serum free tetraiodothyronine (FT4) levels were measured at 0, 1, 2, 3, 4, and 5 h. Descriptive statistics, chi-square test, Student’s t-test, and logistic regression were used in the analysis. Results showed no significant difference in age, body weight, etiology of hypothyroidism, interfering medications, thyroxine storage, and ingestion technique in cases and controls. Cases had a longer duration of hypothyroidism and males had a higher peak FT4 concentration. During pooled analysis, serum FT4 peaked at 3 h with an increment of 149.4% (128.4–170.5%) from baseline and plateaued thereafter. The absolute value of FT4 at 3 h was 41.59 (s.d. 14.14) pmol/L (3.23 ng/dL). We concluded that there was no significant difference in the pattern of levothyroxine absorption in both groups. The most common cause of refractory disease was pseudo-malabsorption. Rapid supervised levothyroxine absorption test with two blood samples for FT4 at baseline and at the peak of absorption (3 h) is simple, convenient, and cost-effective, particularly in low-resource settings.
Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Next-generation sequencing (NGS) is of great benefit to clinical practice in terms of identifying genetic alterations. This study aims to clarify the gene background and its influence on thyroid tumors in the Chinese population. NGS data and corresponding clinicopathological features (sex, age, tumor size, extrathyroidal invasion, metastasis, multifocality, and TNM stage) were collected and analyzed retrospectively from 2844 individual thyroid tumor samples from July 2021 to August 2022. Among the cohort, 2337 (82%) cases possess genetic alterations, including BRAF (71%), RAS (4%), RET/PTC (4%), TERT (3%), RET (2.2%), and TP53 (1.4%). Diagnostic sensitivity before surgery can be significantly increased from 0.76 to 0.91 when cytology is supplemented by NGS. Our results show that BRAF-positive papillary thyroid cancer (PTC) patients tend to have older age, smaller tumor size, less vascular invasion, more frequent tumor multifocality, and a significantly higher cervical lymph node metastatic rate. Mutation at RET gene codons 918 and 634 is strongly correlated with medullary thyroid cancer. However, it did not display more invasive clinical characteristics. TERT-positive patients are more likely to have older age, and have larger tumor size, more tumor invasiveness, and more advanced TNM stage, indicating a poor prognosis. Patients with TERT, RET/PTC1, and CHEK2 mutations are more susceptible to lateral lymph node metastasis. In conclusion, NGS can be a useful tool that provides practical gene evidence in the process of diagnosis and treatment in thyroid tumors.
Faculty of Medicine, The University of Sydney, Sydney, Australia
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Faculty of Medicine, The University of Sydney, Sydney, Australia
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Faculty of Medicine, The University of Sydney, Sydney, Australia
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Faculty of Medicine, The University of Sydney, Sydney, Australia
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Department of Anatomical Pathology, NSW Health Pathology, Royal North Shore Hospital, Sydney, Australia
Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, Sydney Australia
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Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
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Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
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Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
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Faculty of Medicine, The University of Sydney, Sydney, Australia
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Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
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Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
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Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
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Faculty of Medicine, The University of Sydney, Sydney, Australia
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Summary
Background
Noise, an unwanted variability in judgment, is ubiquitous in medicine, including in the prescription of radioactive iodine (RAI). Building upon our recently developed predictive risk model, we created an online clinical support tool to facilitate the translation of our model into clinical practice. The aim of this study is to assess the utility of an online clinical support tool to reduce noise in the treatment for patients with differentiated thyroid cancer (DTC).
Methods
The tool was accessible via weblink or a QR code. Activity recommendations were applied to the calculator’s four risk categories: 0 GBq for very low risk, 1 GBq for low risk, 4 GBq for intermediate risk, and 6 GBq for high risk. The tool was applied prospectively to 103 patients who received RAI at Royal North Shore Hospital between 2021 and 2022 and retrospectively to 393 patients treated with RAI between 2017 and 2021.
Results
A significant difference was observed in administered activity between the 2021–2022 and 2017–2021 cohorts in patients stratified as intermediate risk (median activity 3.95 GBq, interquartile range 2.03–4.04 vs 4 GBq, 4–4) and high risk (4.07 GBq, 3.95–5.7 vs 6 GBq, 6–6) with P-values of 0.01 and <0.01, respectively. No difference was seen in low-risk patients (2.01 GBq, 1.03–3.98 vs 1 GBq, 1–4, P = 0.30). Additionally, no clinically significant recurrence was observed between the two cohorts (6.6% vs 4.5%; P = 0.628).
Conclusion
Optimal risk classification and activity recommendation continue to be established. Our data suggest that providing risk stratification and activity recommendation in an easy-to-access online tool can reduce noise and variability in activity prescription for patients with DTC.
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Background
Epigenetics, which involves regulatory modifications that do not alter the DNA sequence itself, is crucial in the development and progression of thyroid cancer. This study aims to provide a comprehensive analysis of the epigenetic research landscape in thyroid cancer, highlighting current trends, major research areas, and potential future directions.
Methods
A bibliometric analysis was performed using data from the Web of Science Core Collection (WOSCC) up to 1 November 2023. Analytical tools such as VOSviewer, CiteSpace, and the R package ‘bibliometrix’ were employed for comprehensive data analysis and visualization. This process identified principal research themes, along with influential authors, institutions, and countries contributing to the field.
Results
The analysis reveals a marked increase in thyroid cancer epigenetics research over the past two decades. Emergent key themes include the exploration of molecular mechanisms and biomarkers, various subtypes of thyroid cancer, implications for therapeutic interventions, advancements in technologies and methodologies, and the scope of translational research. Research hotspots within these themes highlight intensive areas of study and the potential for significant breakthroughs.
Conclusion
This study presents an in-depth overview of the current state of epigenetics in thyroid cancer research. It underscores the potential of epigenetic strategies as viable therapeutic options and provides valuable insights for researchers and clinicians in advancing the understanding and treatment of this complex disease. Future research is vital to fully leverage the therapeutic possibilities offered by epigenetics in the management of thyroid cancer.
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Purpose
This review aims to discuss the psychological aspects of Graves’ ophthalmopathy (GO), estimate the prevalence of depression and anxiety disorders in GO, examine whether these psychiatric disorders are more prevalent in GO than in Graves’ disease (GD) without eye disease, and evaluate the main contributors for depression and anxiety in GO.
Methods
A review of the literature.
Results
Both depression and anxiety are associated with GO. The prevalence of depression and anxiety disorders specifically in GO patients was estimated at 18–33% and 26–41%, respectively. The reported prevalence in GD patients ranged from 9% to 70% for depression and from 18% to 88% for anxiety disorders. Significantly higher levels of depression and anxiety were found in GD patients compared with patients with non-autoimmune hyperthyroidism. Conflicting results have been reported regarding the association of antithyroid autoantibodies with depression and anxiety disorders. Serum thyroid hormone levels do not correlate with the severity of depression and anxiety. An improvement of psychiatric symptoms is observed in hyperthyroid patients after treatment of thyrotoxicosis. Moreover, depression and anxiety are significantly related to impaired quality of life (QoL) in GO. Exophthalmos and diplopia were not associated with depression nor anxiety, but orbital decompression and strabismus surgery do seem to improve QoL in GO patients.
Conclusions
The results of this review suggest that altered thyroid hormone levels and autoimmunity are prognostic factors for depression and anxiety in GO. With regard to the visual and disfiguring aspects of GO as contributing factors for depression and anxiety, no decisive conclusions can be made.
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Department of Gynecology and Obstetrics, Copenhagen University Hospital (Hvidovre Hospital), Hvidovre, Denmark
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Carelink Nærhospital, Roskilde, Denmark
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Institute of Clinical Medicine, Faculty of Health and Clinical Research, Copenhagen University, Copenhagen, Denmark
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Université Libre de Bruxelles (ULB), Brussels, Belgium
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Background
Thyroid autoimmunity (TAI) may be present in 1–17% of pregnant women. Monitoring of thyroid function in euthyroid pregnant women positive for anti-thyroperoxidase antibodies (TPOAb+) is recommended.
Objective
To determine the prevalence and possible clinical and biological risk factors of biochemical progression (rise in serum thyroid-stimulating hormone (TSH) > 2.5 mU/L) at second blood sampling during pregnancy, in euthyroid women (TSH ≤ 2.5 mU/L) according to their TPOAb status.
Methods
This study included demographic and biological data from two previously published cohorts (n = 274 women from August 1996 to May 1997 Copenhagen cohort, and n = 66 women from January 2013 to December 2014 Brussels cohort) having at least two measurements of TSH and free thyroxine (FT4) and at least one of TPOAb during spontaneously achieved singleton pregnancies.
Results
The majority of women studied did not show biochemical progression. Only 4.2% progressed, significantly more frequently among TPOAb+ women, as compared to TPOAb− group (9.4 vs 2.7%, P = 0.015). No rise in serum TSH > 4 mU/L at 2nd sampling was observed. Higher baseline TSH levels were associated with biochemical progression in both TPOAb+ (P = 0.05) and TPOAb− women (P < 0.001), whereas maternal age, BMI, multiparity, smoking, FT4, and TPOAb concentrations were not significantly different between women with and without progression.
Conclusions
Only a minority of euthyroid women with thyroid autoimmunity presented biochemical progression and none with a TSH > 4 mU/L. Larger studies are needed to better target the subset of women who would benefit most from repeated thyroid function monitoring during pregnancy.
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Background
Papillary thyroid carcinoma has become increasingly prevalent over the years. Avoiding unnecessary treatments and the risk of complications is essential, as well as understanding the mechanisms of tumor progression and the conditions that indicate a worse prognosis. Assessment of the tumor microenvironment can allow us understand how the immune system organizes itself to contain neoplastic progression.
Methods
We compared characteristics related to the lymphocytic subpopulations in the thyroid tumor microenvironment and lymph nodes in two groups, with and without lymph node metastatic involvement.
Results
Of the 400 cases followed up at a thyroid cancer reference service, 32 were selected, of which, 13 cases did not present lymph node metastasis (N0 group) and 19 had lymph node involvement (N1 group). Clinical data were collected, and immunohistochemical reactions were performed for markers CD4, CD8, FoxP3, CD25, and CD20 in lymph nodes and peritumoral infiltrate. We found that the N1 group had larger tumor sizes, higher risk staging, higher frequency of extrathyroidal extension, shorter disease-free times, and higher expression of CD4+ T lymphocytes in lymph nodes; however, there was no difference in the expression of other markers or in the pattern of lymphocyte distribution in the lymph node.
Conclusion
In cervical lymph nodes, the higher frequency of CD4+ T lymphocytes is related to the presence of metastasis. However, there were no differences in lymphocytic subpopulations in the thyroid tumor microenvironment. The absence of changes in unaffected lymph nodes could not predict any tumor behavior.
