Context: Hyperthyroidism is frequently associated with emotional distress. The underlying cerebral processes of the endocrine-induced mood changes are unclear.
Objective: The objective of this study was to investigate, for the first time, the neuronal correlates of thyrotoxicosis-associated psychic symptoms using positron emission tomography (PET).
Design: The study was designed as a cross-sectional trial.
Setting: The study was performed at joint nuclear medicine and thyroid clinics.
Patients: Twelve patients with untreated Graves' hyperthyroidism were evaluated.
Methods: Levels of emotional distress were self-rated by means of the Hospital Anxiety and Depression Scale. Both patients and 20 age- and gender-matched euthyroid controls underwent a brain fluorodeoxyglucose PET scan. Subsequently, the functional relationship between brain metabolism and the psychometric scores was analyzed.
Results: Compared with controls and visualized by fluorodeoxyglucose PET, hyperthyroid patients showed a decreased (P < 0.0001) glucose metabolism in the limbic system (uncus and inferior temporal gyrus). Activation foci in the posterior cingulate and in the inferior parietal lobe were correlated with both anxiety and depression scales (P < 0.001). Compared with patients with normal anxiety levels, those with increased anxiety yielded an enhanced glucose metabolism (P < 0.001) in the bilateral sensory association cortex. Serum free T3/free T4 levels negatively correlated with regional glucose metabolism in the medial posterior cingulate.
Conclusions: Thyrotoxicosis and associated psychic symptoms are correlated to regional metabolic changes in the main structures of the limbic/paralimbic system.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1210/jc.2006-0573 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Novel Therapies for Right Ventricular Failure.
Curr Cardiol Rep
January 2025
Pediatric Advanced Heart Failure and Heart Transplant Program, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS, USA.
Purpose Of Review: Traditionally viewed as a passive player in circulation, the right ventricle (RV) has become a pivotal force in hemodynamics. RV failure (RVF) is a recognized complication of primary cardiac and pulmonary vascular disorders and is associated with a poor prognosis. Unlike treatments for left ventricular failure (LVF), strategies such as adrenoceptor signaling inhibition and renin-angiotensin system modulation have shown limited success in RVF.
View Article and Find Full Text PDFPro-Arg, The Potential Anti-Diabetes Peptide, Screened from Almond by In-Silico Analysis.
Plant Foods Hum Nutr
January 2025
College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, 404100, China.
Insulin resistance was considered to be the most important clinical phenotype of type 2 diabetes (T2DM). Almond is a widely-consumed nut and long-term intake was beneficial to alleviating insulin resistance in patients with T2DM. Hence, screening of anti-diabetic peptides from almond proteins was feasible based on the effectiveness of peptides in the treatment of T2DM.
View Article and Find Full Text PDFPalmitate potentiates the SMAD3-PAI-1 pathway by reducing nuclear GDF15 levels.
Cell Mol Life Sci
January 2025
Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, Unitat de Farmacologia, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028, Barcelona, Spain.
Nuclear growth differentiation factor 15 (GDF15) reduces the binding of the mothers' against decapentaplegic homolog (SMAD) complex to its DNA-binding elements. However, the stimuli that control this process are unknown. Here, we examined whether saturated fatty acids (FA), particularly palmitate, regulate nuclear GDF15 levels and the activation of the SMAD3 pathway in human skeletal myotubes and mouse skeletal muscle, where most insulin-stimulated glucose use occurs in the whole organism.
View Article and Find Full Text PDFDevelopment and validation of a risk prediction model for gestational diabetes mellitus in women of advanced maternal age during the first trimester.
FASEB J
January 2025
Department of Obstetrics and Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200011, China.
With the global rise in advanced maternal age (AMA) pregnancies, the risk of gestational diabetes mellitus (GDM) increases. However, few GDM prediction models are tailored for AMA women. This study aims to develop a practical risk prediction model for GDM in AMA women.
View Article and Find Full Text PDF[Research advances in maturity-onset diabetes of the young].
Zhongguo Dang Dai Er Ke Za Zhi
January 2025
Department of Endocrine, Genetics and Metabolism, Children's Hospital Affiliated to Xi'an Jiaotong University, Xi'an 710003, China.
Maturity-onset diabetes of the young (MODY) is a special type of diabetes characterized by clinical features including early onset of diabetes (before 30 years of age), autosomal dominant inheritance, impaired glucose-induced insulin secretion, and hyperglycemia. So far, 14 types of MODY have been reported, accounting for about 1%-5% of the patients with diabetes. MODY often presents with an insidious onset, and although 14 subtypes have been identified for MODY, it is frequently misdiagnosed as type 1 or type 2 diabetes due to overlapping clinical features and high costs and limitations of genetic testing.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!