{"title":"Novel molecular typing reveals the risk of recurrence in patients with early-stage papillary thyroid cancer.","authors":"Mingyu Sun, Bingqing Zhao, Tao Chen, Lijun Yao, Xiaoxin Li, Shaojun Hu, Chengling Chen, Xinbao Gao, Chuangang Tang","doi":"10.1186/s13044-024-00193-9","DOIUrl":"10.1186/s13044-024-00193-9","url":null,"abstract":"<p><strong>Background: </strong>Papillary thyroid cancer (PTC) is an indolent disease with a favorable prognosis but characterized by a high recurrence rate. We aimed to improve precise stratification of recurrence risk in PTC patients with early stage using multi-gene signatures.</p><p><strong>Patients and methods: </strong>The present study was performed using data from The Cancer Genome Atlas (TCGA) and multi-center datasets. Unsupervised consensus clustering was used to obtain the optimal molecular subtypes and least absolute shrinkage and selection operator (LASSO) analysis was performed to identify potential genes for the construction of recurrence signature. Kaplan-Meier survival analysis and the log-rank test was used to detect survival differences. Harrells concordance index (C-index) was used to assess the performance of the DNA damage repair (DDR) recurrence signature.</p><p><strong>Results: </strong>Through screening 8 candidate gene sets, the entire cohort was successfully stratified into two recurrence-related molecular subtypes based on DDR genes: DDR-high subtype and DDR-low subtype. The recurrence rate of DDR-high subtype was significantly lower than DDR-low subtype [HR = 0.288 (95%CI, 0.084-0.986), P = 0.047]. Further, a two-gene DDR recurrence signature was constructed, including PER1 and EME2. The high-risk group showed a significantly worse recurrence-free survival (RFS) than the low-risk group [HR = 10.647 (95%CI, 1.363-83.197), P = 0.024]. The multi-center data demonstrated that proportion of patients with low expression of PER1 and EME2 was higher in the recurrence group than those in the non-recurrence group.</p><p><strong>Conclusions: </strong>These findings could help accurately and reliably identify PTC patients with high risk of recurrence so that they could receive more radical and aggressive treatment strategies and more rigorous surveillance practices.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"17 1","pages":"7"},"PeriodicalIF":2.2,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10983671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140332161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluating the progression to abnormal thyrotropin in euthyroid preconception women: a population-based study.","authors":"Rili Gao, Xinyi Lyu, Ying Yang, Jinrong Fu, Chuanyu Zhao, Haixia Guan, Xu Ma","doi":"10.1186/s13044-024-00192-w","DOIUrl":"10.1186/s13044-024-00192-w","url":null,"abstract":"<p><strong>Background: </strong>Abnormal preconception thyrotropin levels were associated with fecundability and adverse fetomaternal outcomes, however, little is known regarding the natural change of serum thyrotropin in euthyroid preconception women. Thus, we performed a population-based study to evaluate the progression to abnormal thyrotropin in euthyroid preconception women.</p><p><strong>Methods: </strong>This retrospective cohort study used data from the National Free Prepregnancy Checkups Project (NFPCP) collected between 2010 and 2020. Female Han Chinese participants aged 20-49 years who had two repeated NFPCP participations with a time interval of 1.5-3.0 years, confirmed non-pregnant status within this duration, and normal thyrotropin levels during their first participation were included for the analysis of thyrotropin abnormalities during the second NFPCP examination. Data were analyzed between June 1 and October 1, 2023.</p><p><strong>Results: </strong>This study included 186,095 euthyroid women of reproductive age (mean ± SD, 26.72 ± 4.70 years) whose preconception thyrotropin levels were between 0.37 and 4.87 mIU/L. The median follow-up time was 2.13 (IQR, 1.85-2.54) years. A total of 8,497 (4.57%) women developed abnormal thyrotropin, including 4,118 (2.21%) subnormal thyrotropin and 4,379 (2.35%) supranormal thyrotropin. Compared with the reference group (thyrotropin 1.01-2.00 mIU/L), the lower baseline thyrotropin group had greater risk of developing subnormal thyrotropin, and the higher baseline thyrotropin group had greater risk of developing supranormal thyrotropin. Moreover, the restricted cubic spline analysis revealed a U-shaped dose-response association of baseline thyrotropin levels or thyrotropin multiples of the median (MOM) levels against risk of subnormal thyrotropin in the follow-up, and a J-shaped dose-response association against risk of supranormal thyrotropin levels in the follow-up. We further found that baseline thyrotropin outside of 1.43-1.93 mIU/L or baseline thyrotropin MOM outside 0.59-1.36 would hava a higher risk of developing of abnormal thyrotropin.</p><p><strong>Conclusions: </strong>Both low and high baseline thyrotropin were associated with a significantly increased risk of developing abnormal thyrotropin outcomes. The optimal preconception baseline thyrotropin levels may be between 1.43 mIU/L and 1.93 mIU/L or baseline thyrotropin MoM between 0.59 and 1.36 to minimize progression toward abnormal thyrotropin after 1.5-3.0 years. These findings may help with counseling of preconception thyroid function monitoring.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"17 1","pages":"5"},"PeriodicalIF":2.2,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10926655/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140094829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"When to settle for SETTLE! A lesson learned from our cases.","authors":"Bangalore Rammohan Nagarjun, Shailee Mehta, Jahnavi Gandhi, Priti Trivedi, Priyank Rathod","doi":"10.1186/s13044-023-00189-x","DOIUrl":"10.1186/s13044-023-00189-x","url":null,"abstract":"<p><p>Spindle epithelial tumor with thymic like elements (SETTLE) is a biphasic tumor composed of epithelial and spindle cell components. It is an uncommon indolent tumor arising in the thyroid gland and most commonly affects the children and young adults. This entity is mostly overlooked because of its rarity and diagnostic difficulty on morphology. We discuss two cases of SETTLE with varied presentation, diagnostic challenges and lessons learnt from them.SETTLE should be considered as a differential especially when dealing with a thyroid lesion in young and adolescent. The article discusses the histologic details and common mimickers to be borne in mind aiding in arrival at the final diagnosis on biopsy specimens.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"17 1","pages":"6"},"PeriodicalIF":2.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10913219/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140029223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thyroid ResearchPub Date : 2024-02-19DOI: 10.1186/s13044-024-00191-x
Jie Liu, Jingchao Yu, Yanan Wei, Wei Li, Jinle Lu, Yating Chen, Meng Wang
{"title":"Ultrasound radiomics signature for predicting central lymph node metastasis in clinically node-negative papillary thyroid microcarcinoma.","authors":"Jie Liu, Jingchao Yu, Yanan Wei, Wei Li, Jinle Lu, Yating Chen, Meng Wang","doi":"10.1186/s13044-024-00191-x","DOIUrl":"10.1186/s13044-024-00191-x","url":null,"abstract":"<p><strong>Background: </strong>Whether prophylactic central lymph node dissection is necessary for patients with clinically node-negative (cN0) papillary thyroid microcarcinoma (PTMC) remains controversial. Herein, we aimed to establish an ultrasound (US) radiomics (Rad) score for assessing the probability of central lymph node metastasis (CLNM) in such patients.</p><p><strong>Methods: </strong>480 patients (327 in the training cohort, 153 in the validation cohort) who underwent thyroid surgery for cN0 PTMC at two institutions between January 2018 and December 2020 were included. Radiomics features were extracted from the US images. Least absolute shrinkage and selection operator logistic regression were utilized to generate a Rad score. A nomogram consisting of the Rad score and clinical factors was then constructed for the training cohort. Both cohorts assessed model performance using discrimination, calibration, and clinical usefulness.</p><p><strong>Results: </strong>Based on the six most valuable radiomics features, the Rad score was calculated for each patient. A multivariate analysis revealed that a higher Rad score (P < 0.001), younger age (P = 0.006), and presence of capsule invasion (P = 0.030) were independently associated with CLNM. A nomogram integrating these three factors demonstrated good calibration and promising clinical utility in the training and validation cohorts. The nomogram yielded areas under the curve of 0.795 (95% confidence interval [CI], 0.745-0.846) and 0.774 (95% CI, 0.696-0.852) in the training and validation cohorts, respectively.</p><p><strong>Conclusions: </strong>The radiomics nomogram may be a clinically useful tool for the individual prediction of CLNM in patients with cN0 PTMC.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"17 1","pages":"4"},"PeriodicalIF":2.2,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10875890/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139900560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thyroid ResearchPub Date : 2024-02-05DOI: 10.1186/s13044-023-00184-2
Adeel Ahmad Khan, Shahd I Ibrahim, Fateen Ata, Bara Wazwaz, Mohammad Abdulalim Hanoun, Sirajeddin Belkhair, Zaina Seros Rohani, Zeinab Dabbous
{"title":"Clinical characteristics and outcomes of patients with TSH-secreting pituitary adenoma and Graves' disease - a case report and systematic review.","authors":"Adeel Ahmad Khan, Shahd I Ibrahim, Fateen Ata, Bara Wazwaz, Mohammad Abdulalim Hanoun, Sirajeddin Belkhair, Zaina Seros Rohani, Zeinab Dabbous","doi":"10.1186/s13044-023-00184-2","DOIUrl":"10.1186/s13044-023-00184-2","url":null,"abstract":"<p><strong>Background: </strong>Coexistence of TSH-secreting pituitary adenoma (TSHoma) and Graves' disease (GD) is rare and complicates the management decision.</p><p><strong>Methods: </strong>We present a case of the co-existence of TSHoma and GD. In addition, we systematically searched articles describing TSHoma and GD in the same patient published until 20th March 2023, using Pubmed, Scopus and Embase.</p><p><strong>Case presentation: </strong>A 46-year-old man presented with symptoms of thyrotoxicosis. His thyroid function tests showed serum TSH 3.35 (reference range 0.3-4.2) mIU/L, FT3 19.7 (3.7-6.4) pmol/L, and FT4 68.9 (11-23.3) pmol/L. The serum TSH receptor antibody was 11.5 mIU/L (positive at ≥ 1.75 mIU/L). Pituitary magnetic resonance imaging showed macroadenoma compressing the optic chiasm. The patient underwent trans-sphenoidal resection of pituitary adenoma. Postoperatively, he remained on maintenance carbimazole and octreotide.</p><p><strong>Results: </strong>Fourteen articles comprising 15 patients were identified from the systemic search. A total of 16 patients (including the current case) were included in the systematic review. The mean (± SD) age at diagnosis was 41 ± 13.6 years. The majority were females (75%). The median (IQR) TSH was 1.95 (0.12-5.5) mIU/L, the median (IQR) free T3 was 11.7 (7.6-19.7) pmol/L and the median (IQR) free T4 level was 47.6 (33.3-64.4) pmol/L. Ten (76.9%) patients had positive TSH receptor antibody levels. 84.6% had pituitary macroadenoma. Pituitary surgery was performed in 12 (75%) patients. At the last follow-up, 4 (25%) patients had complete resolution of symptoms after pituitary surgery, 3 (18.7%) were on maintenance treatment with thionamides for GD, 1 (6.25%) on beta-blockers and 1 (6.25%) on somatostatin analog.</p><p><strong>Conclusion: </strong>TSHoma and GD can co-exist, and it is essential to identify this rare association as it can significantly impact treatment strategies.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"17 1","pages":"3"},"PeriodicalIF":2.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10840192/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139681668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Thyroid storm in pregnancy: a review.","authors":"Vidhu Vadini, Prabhav Vasistha, Almog Shalit, Spyridoula Maraka","doi":"10.1186/s13044-024-00190-y","DOIUrl":"10.1186/s13044-024-00190-y","url":null,"abstract":"<p><strong>Background: </strong>Thyroid storm is a state of circulating thyroid hormone excess leading to multiorgan dysfunction and systemic decompensation. It typically occurs in the setting of poorly controlled hyperthyroidism and a precipitating illness or event. Management of thyroid storm in pregnancy poses unique diagnostic and therapeutic challenges.</p><p><strong>Main body: </strong>Thyroid storm is a clinical diagnosis characterized by hyperpyrexia, tachyarrhythmias, congestive heart failure, gastrointestinal and neuropsychiatric disturbances. However, diagnostic scoring systems have not been validated in pregnancy. Treatment involves specialist consultation, supportive care, and pharmacological options such as anti-thyroid medications, beta blockers, iodine solutions, glucocorticoids, and cholestyramine. These must be adapted and modified in pregnancy to prevent fetal and maternal complications.</p><p><strong>Conclusion: </strong>There is a critical need to recognize thyroid storm during pregnancy and initiate proper medical interventions promptly.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"17 1","pages":"2"},"PeriodicalIF":2.2,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10792856/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139479475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thyroid ResearchPub Date : 2024-01-03DOI: 10.1186/s13044-023-00188-y
Cristhian Garcia, Paola Solis-Pazmino, Eddy P Lincango, Andrea S Cho-Tana, Luis Figueroa, Oscar J Ponce, Juan P Brito, Erivelto Volpi
{"title":"Radiofrequency ablation for thyroid nodules in Ecuador: a cross-sectional study.","authors":"Cristhian Garcia, Paola Solis-Pazmino, Eddy P Lincango, Andrea S Cho-Tana, Luis Figueroa, Oscar J Ponce, Juan P Brito, Erivelto Volpi","doi":"10.1186/s13044-023-00188-y","DOIUrl":"10.1186/s13044-023-00188-y","url":null,"abstract":"<p><strong>Objectives: </strong>To describe the demographic characteristics and clinical outcomes following the first cohort of patients with Bening Thyroid Nodule (BTN) and (Papillary Thyroid Microcarcinoma) (PTMC) treated with Radiofrequency Ablation (RFA)in Ecuador.</p><p><strong>Methods: </strong>Single-center, cross-sectional study. We included adults undergoing RFA for BTN and PTMC between July 2019 and May 2022. Descriptive statistics and the Wilcoxon signed-rank test were used to compare some pre- and post-intervention outcomes.</p><p><strong>Results: </strong>We included 44 patients with 36 BTNs and eight PTMCs. The median age was 45.80 years (IQR 16-79 years), and most patients had normal thyroid function (72.72%). The median follow-up time was 7.80 months (IQR1.0-34.0). Nodules were primarily solid (43.21%) or predominantly solid (56.81%). The pre-RFA median volume in the benign lesions group was 10.30 ml (IQR 1.86-18.97). After ablation, the 1-month, 3-month, 6-month, and 12-month median volumes were 6.90 (IQR 0.48-10.15; p < 0.01) mL, 5.72 (IQR 0.77-7.25; p = 0.045); 0.98 (IQR 0.25-3.64; p < 0.01), and 0.11 (IQR 0.07-11.26; p = 0.026), respectively. The volume rate reduction was 47.20%, 72.20%, 74.00%, and 96.20% at 1, 3, 6, and 12-month follow-ups, respectively. The pre-RFA median volume in the PTMC group was 0.25 ml (IQR 0.19-0.48). After ablation, the 1-month, 3-month, and 6-month mean volumes were 0.19 (range 0.12-0.31; p = 0.120) mL, 0.10 (IQR 0.05-0.15; p = 0.13), and 0.01 (IQR 0.005-0.04; p = 0.364), respectively.</p><p><strong>Conclusions: </strong>In this first report from Ecuador, we found that RFA may be a feasible alternative for treating benign and malignant thyroid nodules in the short term. Long-term data are needed to evaluate oncologic outcomes in PTMC patients.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"17 1","pages":"1"},"PeriodicalIF":2.2,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10763036/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139088929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thyroid ResearchPub Date : 2023-12-06DOI: 10.1186/s13044-023-00187-z
Tamer Mohamed Elsherbiny
{"title":"Twice or thrice weekly levothyroxine provides similar rates of adherence and post-Ramadan euthyroidism compared to daily levothyroxine during Ramadan fasting.","authors":"Tamer Mohamed Elsherbiny","doi":"10.1186/s13044-023-00187-z","DOIUrl":"10.1186/s13044-023-00187-z","url":null,"abstract":"<p><strong>Background: </strong>Having to take levothyroxine (L-T4) on a daily basis, on an empty stomach is burdensome and may impair adherence, especially during Ramadan fasting. A long half-life and autoregulation of thyroid hormone levels allows for twice or thrice weekly administration of L-T4. This study aims to establish twice or thrice weekly L-T4 dosing as a convenient and effective practice during Ramadan fasting.</p><p><strong>Methods: </strong>The study included 2 groups; twice or thrice weekly (TTW) group included patients assigned to take L-T4 twice or thrice a week, and standard daily dosing (SDT) group included patients assigned to take L-T4 daily. Patients freely chose between three L-T4 regimens: before Iftar, before Suhor, or before the next fast. Thyroid status was assessed before and within 6 weeks after Ramadan. Only euthyroid patients were included.</p><p><strong>Results: </strong>TTW group included 57 patients, while SDT group included 91 patients. Pre-Ramadan TSH in TTW group (1.80 ± 0.88 µIU/L) was higher compared to SDT group (1.39 ± 0.72 µIU/L) [P = 0.003]. Similar adherence rates were observed in both groups, 96.5% in TTW group versus 89% in SDT group, [P = 0.13]. similar rates of post-Ramadan euthyroidism were also found in both groups, 91.2% in TTW group versus 94.5% in SDT group, [P = 0.509]. TTW group preferred regimen 1 (64.9%) significantly more than SDT group (35.2%) [P = 0.001].</p><p><strong>Conclusion: </strong>Twice or thrice weekly levothyroxine results in similarly high rates of adherence (96.5%) and post-Ramadan euthyroidism (91.2%) compared to daily levothyroxine during Ramadan fasting.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"16 1","pages":"44"},"PeriodicalIF":2.2,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10698921/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138488643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thyroid ResearchPub Date : 2023-11-13DOI: 10.1186/s13044-023-00186-0
Mia Holley, Salman Razvi, Rosie Dew, Ian Maxwell, Scott Wilkes
{"title":"Assessing the cardiovascular effects of levothyroxine use in an ageing United Kingdom population (ACEL-UK) protocol: a cohort and target trial emulation study.","authors":"Mia Holley, Salman Razvi, Rosie Dew, Ian Maxwell, Scott Wilkes","doi":"10.1186/s13044-023-00186-0","DOIUrl":"10.1186/s13044-023-00186-0","url":null,"abstract":"<p><strong>Background: </strong>Subclinical hypothyroidism is diagnosed when serum thyroid stimulating hormone levels are higher whilst free thyroxine levels remain within their respective reference ranges. These reference ranges are uniformly applied in all adults, despite serum thyroid stimulating hormone levels naturally increasing with age. Research has found that mildly elevated thyroid stimulating hormone levels may be associated with some benefits in ageing patients, including reduced mortality and better cardiorespiratory fitness. Levothyroxine is typically prescribed to patients with hypothyroidism, but no conclusive evidence exists on whether levothyroxine therapy is beneficial or detrimental in older subclinical hypothyroid patients. Despite this, prescriptions for levothyroxine are increasing year-on-year. This study aims to determine if receiving levothyroxine affects the cardiovascular and bone health outcomes of subclinical patients in primary care aged 50 years and over.</p><p><strong>Methods: </strong>This project includes a retrospective cohort analysis and a target trial emulation study using electronic patient records collected between 2006 and 2021 and recorded in The Health Improvement Network database. The primary outcome of this study is to compare the cardiovascular outcomes of subclinical hypothyroid patients aged over 50 years treated with levothyroxine compared to those untreated. Secondary outcomes are bone health and all-cause mortality outcomes. Descriptive and inferential statistics will both be employed to analyse the data. Secondary analysis will explore confounding factors, including age, sex, smoking status, body mass index, co-morbidities, and levothyroxine dosage.</p><p><strong>Discussion: </strong>There needs to be a greater understanding of the potential risks of the current treatment for older patients with subclinical hypothyroidism in a primary care setting. We will investigate the clinical importance of this issue and whether older subclinical hypothyroid patients have poorer outcomes when treated. Clarifying this concern may help address the healthcare resource implications of ageing patients being misclassified as having mild hypothyroidism, as these patients are more likely to repeat their blood tests. This could reduce prescription wastage and improve patient outcomes and quality of life in the ageing population.</p><p><strong>Trial registration: </strong>Not applicable.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"16 1","pages":"43"},"PeriodicalIF":2.2,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10641939/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89719905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thyroid ResearchPub Date : 2023-11-06DOI: 10.1186/s13044-023-00176-2
Berenike Rogge, Marcus Heldmann, Krishna Chatterjee, Carla Moran, Martin Göttlich, Jan Uter, Tobias A Wagner-Altendorf, Julia Steinhardt, Georg Brabant, Thomas F Münte, Anna Cirkel
{"title":"Changes in brain structure in subjects with resistance to thyroid hormone due to THRB mutations.","authors":"Berenike Rogge, Marcus Heldmann, Krishna Chatterjee, Carla Moran, Martin Göttlich, Jan Uter, Tobias A Wagner-Altendorf, Julia Steinhardt, Georg Brabant, Thomas F Münte, Anna Cirkel","doi":"10.1186/s13044-023-00176-2","DOIUrl":"10.1186/s13044-023-00176-2","url":null,"abstract":"<p><strong>Background: </strong>Being critical for brain development and neurocognitive function thyroid hormones may have an effect on behaviour and brain structure. Our exploratory study aimed to delineate the influence of mutations in the thyroid hormone receptor (TR) ß gene on brain structure.</p><p><strong>Methods: </strong>High-resolution 3D T1-weighted images were acquired in 21 patients with a resistance to thyroid hormone ß (RTHß) in comparison to 21 healthy matched-controls. Changes in grey and white matter, as well as cortical thickness were evaluated using voxel-based morphometry (VBM) and diffusion tensor imaging (DTI).</p><p><strong>Results: </strong>RTHß patients showed elevated circulating fT4 & fT3 with normal TSH concentrations, whereas controls showed normal thyroid hormone levels. RTHß patients revealed significantly higher scores in a self-rating questionnaire for attention deficit hyperactivity disorder (ADHD). Imaging revealed alterations of the corticospinal tract, increased cortical thickness in bilateral superior parietal cortex and decreased grey matter volume in bilateral inferior temporal cortex and thalamus.</p><p><strong>Conclusion: </strong>RTHb patients exhibited structural changes in multiple brain areas. Whether these structural changes are causally linked to the abnormal behavioral profile of RTHß which is similar to ADHD, remains to be determined.</p>","PeriodicalId":39048,"journal":{"name":"Thyroid Research","volume":"16 1","pages":"34"},"PeriodicalIF":2.2,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10433577/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10100365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}