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Rippamonti J, Dzialowski EM. Thyroid hormone manipulation influences development of endothermy and hatching in white leghorn chickens (Gallus gallus). J Therm Biol 2023; 114:103582. [PMID: 37276745 DOI: 10.1016/j.jtherbio.2023.103582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 06/07/2023]
Abstract
Chickens experience rapid change in their physiology and metabolism during hatching. We propose that thyroid hormones play a major role in regulating the developmental changes associated with attaining endothermy. To better understand the role thyroid hormones play in hatch timing and development of thermogenic capacity and metabolic rate we manipulated plasma thyroid hormone levels in chicken embryos beginning at 80% development (day 17 of a 21-day incubation) with either a single dose of triiodo-L-thyronine (T3) or the thyroperoxidase inhibitor methimazole (MMI). Manipulation of thyroid hormones altered the timing of hatching, accelerating hatching under hyperthyroid conditions, and prolonging hatching with hypothyroid conditions. Effect sizes comparisons of morphological variables between treatment groups revealed larger heart and body masses in hyperthyroid 1-day post hatch animals. Thyroid hormone manipulation influenced the thermal neutral zone for O2 consumption and body temperature during gradual cooling from 35 to 15 °C of externally pipped embryos and 1-day post hatch chicks. Hyperthyroid EP animals had a wider thermal neutral zone during cooling when compared to control animals. At the temperatures tested, the hypothyroid animals did not exhibit a thermal neutral zone. Similar differences between treatments in the breadth of the thermal neutral zone carried through to 1-day post hatch chickens. These findings suggest that thyroid manipulations influence the timing and development of the animal's thermogenic response to cooling.
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Affiliation(s)
- Jessica Rippamonti
- Department of Biological Sciences, University of North Texas, Denton, TX, 76201, USA.
| | - Edward M Dzialowski
- Department of Biological Sciences, University of North Texas, Denton, TX, 76201, USA
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Song Y, Wang X, Ma W, Yang Y, Yan S, Sun J, Zhu X, Tang Y. Graves' disease as a driver of depression: a mechanistic insight. Front Endocrinol (Lausanne) 2023; 14:1162445. [PMID: 37152963 PMCID: PMC10157224 DOI: 10.3389/fendo.2023.1162445] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/05/2023] [Indexed: 05/09/2023] Open
Abstract
Graves' disease (GD) is characterized by diffuse enlargement and overactivity of the thyroid gland, which may be accompanied by other physical symptoms. Among them, depression can dramatically damage patients' quality of life, yet its prevalence in GD has not received adequate attention. Some studies have established a strong correlation between GD and increased risk of depression, though the data from current study remains limited. The summary of mechanistic insights regarding GD and depression has underpinned possible pathways by which GD contributes to depression. In this review, we first summarized the clinical evidence that supported the increased prevalence of depression by GD. We then concentrated on the mechanistic findings related to the acceleration of depression in the context of GD, as mounting evidence has indicated that GD promotes the development of depression through various mechanisms, including triggering autoimmune responses, inducing hormonal disorders, and influencing the thyroid-gut-microbiome-brain axis. Finally, we briefly presented potential therapeutic approaches to decreasing the risk of depression among patients with GD.
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Affiliation(s)
- Yifei Song
- Beijing University of Chinese Medicine, Beijing, China
| | - Xinying Wang
- Beijing University of Chinese Medicine, Beijing, China
| | - Wenxin Ma
- Centre for Evidence-Based Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Yang
- Tongling Municipal hospital, Anhui, China
| | - Shuxin Yan
- Beijing University of Chinese Medicine, Beijing, China
| | - Jiapan Sun
- Department of Geriatrics, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
- *Correspondence: Jiapan Sun, ; Xiaoyun Zhu, ; Yang Tang,
| | - Xiaoyun Zhu
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Jiapan Sun, ; Xiaoyun Zhu, ; Yang Tang,
| | - Yang Tang
- Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Jiapan Sun, ; Xiaoyun Zhu, ; Yang Tang,
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Lin SR, Chen SF, Yang YC, Hsu CY, Shen YC. Association between hyperthyroidism and risk of incident in Parkinson's disease. Endocr Connect 2021; 10:13-20. [PMID: 33263564 PMCID: PMC7923144 DOI: 10.1530/ec-20-0554] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/25/2020] [Indexed: 12/15/2022]
Abstract
Hyperthyroidism contributes to many other disease conditions, including neurodegenerative diseases. Parkinson's disease (PD) is one of the most common neurodegenerative diseases. The purpose of this study was to investigate the risk of PD in patients with hyperthyroidism. A total of 8788 patients with hyperthyroidism and 8788 controls (without hyperthyroidism) matched by age, gender, index year, and Charlson Comorbidity Index (CCI) score were enrolled between 2000 and 2012. Patients were then followed until the end of 2013 using Taiwan's National Health Insurance Research Database, at which time participants who developed PD were identified. Cox regression analysis was used to calculate the hazard ratio (HR) with a 95% CI of PD incidence rate between patients with hyperthyroidism and unaffected controls. Patients with hyperthyroidism had a significantly increased risk of PD compared with unaffected controls (1.21 vs 0.45 per 1000 person-years, HR: 2.69, 95% CI: 1.08-6.66) after adjusting for age, gender, CCI score, comorbidities, and antithyroid therapy. Hyperthyroidism and PD may share common manifestations. After excluding the first year of observation, a similar result is obtained (HR: 2.57, 95% CI: 1.61-4.01). Also, this study found that older age (HR: 3.74-8.53), more comorbidities (HR: 1.58-1.63), and specific comorbidities (brain injury (HR: 1.57) and cerebrovascular disease (HR: 3.44)) were associated with an increased risk of developing PD. Patients with hyperthyroidism have an increased risk of developing PD. Additional prospective clinical studies are warranted to examine the relationship between hyperthyroidism and PD and determine if there is an intervention that could reduce PD risk.
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Affiliation(s)
- Shih-Rong Lin
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Shih-Fen Chen
- Department of Obstetrics and Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Yu-Cih Yang
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Chung-Y Hsu
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Yu-Chih Shen
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
- Department of Psychiatry, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- School of Medicine, Tzu Chi University, Hualien, Taiwan
- Correspondence should be addressed to Y-C Shen:
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Yuan L, Luan D, Xu X, Yang Q, Huang X, Zhao S, Zhang Y, Zhou Z. Altered attention networks in patients with thyroid dysfunction: A neuropsychological study. Horm Behav 2020; 121:104714. [PMID: 32057820 DOI: 10.1016/j.yhbeh.2020.104714] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 02/07/2020] [Accepted: 02/09/2020] [Indexed: 11/28/2022]
Abstract
Patients with thyroid dysfunction (31 hypothyroid, 32 subclinical hypothyroidism, 34 hyperthyroid, and 30 subclinical hyperthyroidism) and 37 euthyroid control subjects were recruited and performed the attention network test (ANT), which can simultaneously examine the alertness, orientation and execution control of the participants. Patients with hypothyroidism had abnormalities in the alerting network, and those with hyperthyroidism had impairments of the alerting and executive control networks. No attention networks deficit existed in patients with subclinical hyperthyroidism and subclinical hypothyroidism. The anxiety and depression scores of patients with thyroid dysfunction were significantly higher than those of the healthy control group. Covariance analysis demonstrated that interactions between group and Hamilton Anxiety Scale scores, group and HAMD score were not significant, but there was a significant main effect for group when analyzing the difference in values of the alerting network between groups. Further, the efficiency of the executive control network was negatively correlated with the T4 level in the hypothyroidism group, and positively correlated with the T4 level in the hyperthyroidism group. T4 or T3 level and efficiencies of the executive control network had a significant quadratic U-shaped relationship in all participants. In summary, the patients with four kinds of thyroid dysfunction exhibited different characteristics of ANT performance. Patients with thyroid dysfunction had various degrees of anxiety and depression disorders, but anxiety and depression disorders had no effect on the differences in the executive control network between the groups.
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Affiliation(s)
- Lili Yuan
- Department of Neurology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China.
| | - Di Luan
- Department of Neurology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
| | - Xiangjun Xu
- Department of Neurology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
| | - Qian Yang
- Department of Neurology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
| | - Xianjun Huang
- Department of Neurology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
| | - Shoucai Zhao
- Department of Neurology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
| | - Yuanxiang Zhang
- Department of Clinical Pharmacy, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
| | - Zhiming Zhou
- Department of Neurology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
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Yuan L, Zhang Y, Luan D, Xu X, Yang Q, Zhao S, Zhou Z. Reversible Affective Symptoms and Attention Executive Control Network Impairment Following Thyroid Function Normalization in Hyperthyroidism. Neuropsychiatr Dis Treat 2019; 15:3305-3312. [PMID: 32063707 PMCID: PMC6884974 DOI: 10.2147/ndt.s227386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/11/2019] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION Affective symptoms and attention impairments are found in patients with hyperthyroidism. Our previous data have revealed that the patients with hyperthyroidism experience impairments of the attention networks, but it remains unclear whether these disorders persist after the treatment of hyperthyroidism. METHODS Twenty healthy controls and 25 hyperthyroid patients were recruited and performed the attention network test (ANT) which can simultaneously examine the alertness, orientation and execution control components of the participants. The effect of treatment on affective symptom and attention networks impairments were examined in the patient group after 1-year anti-thyroid medication and reaching euthyroidism for at least 3 months. RESULTS Anxiety and depression scores of patients with hyperthyroidism were significantly higher than those of the healthy control group. The patients with hyperthyroidism had impairments of the alerting and executive control networks. Meanwhile, the score of HAMA correlated significantly with thyroid hormone and TSH levels, and there was a negative significant correlation between the score of HAMD and TSH level in all subjects. There was a positive correlation between the value of the executive control network and thyroid hormones' levels in all subjects and in the hyperthyroidism group. Anxiety and depression symptoms were improved with methimazole treatment after euthyroidism was reached. The value of the executive control network no longer differed from that of healthy controls, but deficits in the alerting network of hyperthyroidism still persisted after treatment. CONCLUSION The patients with hyperthyroidism existed affective symptoms and attention networks impairments. Affective symptoms and attention executive control network impairment were improved following thyroid function normalization in hyperthyroidism.
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Affiliation(s)
- Lili Yuan
- Department of Neurology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, People's Republic of China
| | - Yuanxiang Zhang
- Department of Clinical Pharmacy, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, People's Republic of China
| | - Di Luan
- Department of Neurology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, People's Republic of China
| | - Xiangjun Xu
- Department of Neurology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, People's Republic of China
| | - Qian Yang
- Department of Neurology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, People's Republic of China
| | - Shoucai Zhao
- Department of Neurology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, People's Republic of China
| | - Zhiming Zhou
- Department of Neurology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, People's Republic of China
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Delitala AP, Manzocco M, Sinibaldi FG, Fanciulli G. Thyroid function in elderly people: The role of subclinical thyroid disorders in cognitive function and mood alterations. Int J Clin Pract 2018; 72:e13254. [PMID: 30216651 DOI: 10.1111/ijcp.13254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/01/2018] [Accepted: 08/04/2018] [Indexed: 01/06/2023] Open
Affiliation(s)
- Alessandro P Delitala
- U.O.C. di Medicina Interna 2 (Clinica Medica), Azienda Ospedaliero-Universitaria di Sassari, Sassari, Italy
| | - Marta Manzocco
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Federico G Sinibaldi
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Giuseppe Fanciulli
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
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Thyroid hormone manipulation influences development of cardiovascular regulation in embryonic Pekin duck, Anas platyrhynchos domestica. J Comp Physiol B 2018; 188:843-853. [PMID: 29948159 DOI: 10.1007/s00360-018-1166-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/08/2018] [Accepted: 05/22/2018] [Indexed: 12/15/2022]
Abstract
Thyroid hormones are key regulators of avian metabolism and may play a significant role in development at hatching. To better understand the role of thyroid hormones in avian development, we examined autonomic control of heart rate and blood pressure while manipulating thyroid hormone levels in the late stage embryonic Pekin duck (Anas platyrhynchos domestica). Thyroid hormone levels were manipulated on day 24 of a 28-day incubation period with the thyroperoxidase inhibitor methimazole (MMI), triiodothyronine (T3), or saline. On day 25 of incubation, autonomic tone on cardiovascular function was studied by injections of cholinergic and adrenergic receptor antagonists. Embryos from all treatment groups expressed a cholinergic and β-adrenergic tone on heart rate at this age. Cholinergic blockade with atropine produced a larger change in heart rate in the hyperthyroid animals compared with euthyroid animals. In response to β-adrenergic blockade, hyperthyroid conditions produced a larger decrease in heart rate compared with euthyroid animals, with no change in mean arterial blood pressure. In response to α-adrenergic blockade, mean arterial blood pressure decreased in the euthyroid animals and more developed hyperthyroid animals. Collectively, the data indicate that elevated levels of T3 can influence maturation of cholinergic and adrenergic receptor-mediated cardiovascular regulation in developing Pekin ducks near the end of incubation.
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Effects of hypothyroidism on serotonin 1A receptors in the rat brain. Psychopharmacology (Berl) 2018; 235:729-736. [PMID: 29209734 DOI: 10.1007/s00213-017-4799-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 11/08/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE We investigated the effects of hypothyroidism on serotonin 1A receptors in the rat brain in vivo. METHODS Five surgically thyroidectomized male Sprague-Dawley (SD) rats and five hypophysectomized SD rats were used as animal models of hypothyroidism; the same number of sham-operated SD rats served as age-matched controls. After hypothyroidism was confirmed by thyroid function tests, serotonin positron emission tomography (PET) was performed for 120 min. All PET data were spatially normalized to T2-weighted magnetic resonance imaging templates; then, time-activity curves of the hippocampus, septum, and cerebellum were extracted using predefined volume-of-interest templates. Non-displaceable binding values in the hippocampus and septum were calculated using a multilinear reference tissue model and parametric maps were constructed. Both volume-of-interest and voxel-based analyses showed higher brain uptake in the thyroidectomized and hypophysectomized rats compared to the respective sham-operated rats. RESULTS Time-activity curves showed that the brain uptake values for the thyroidectomized and hypophysectomized groups were 21-52% higher than were those in the respective control groups. In the thyroidectomized group, the binding potential values for the hippocampus and septum were 20-26% higher than were those in the sham-thyroidectomized group. In the hypophysectomized group, the binding value for the hippocampus was 23% higher than was that in the sham-hypophysectomized group, whereas the septal binding was not significantly different from that in the sham-hypophysectomized group. Parametric maps for the hypothyroidism also showed significantly higher binding values than did those for the controls. CONCLUSION Our results demonstrate that hypothyroidism elevates serotonin 1A receptor binding in the limbic system.
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Nagler J, Schriever SC, De Angelis M, Pfluger PT, Schramm KW. Comprehensive analysis of nine monoamines and metabolites in small amounts of peripheral murine (C57Bl/6 J) tissues. Biomed Chromatogr 2017; 32. [DOI: 10.1002/bmc.4151] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/20/2017] [Accepted: 11/07/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Joachim Nagler
- Helmholtz Center Munich-German Research Center for Environmental Health, Molecular EXposomics; Neuherberg Germany
| | - Sonja C. Schriever
- Helmholtz Center Munich-German Research Center for Environmental Health, NeuroBioloy of Diabetes, Business Campus Garching; Garching Germany
| | - Meri De Angelis
- Helmholtz Center Munich-German Research Center for Environmental Health, Molecular EXposomics; Neuherberg Germany
| | - Paul T. Pfluger
- Helmholtz Center Munich-German Research Center for Environmental Health, NeuroBioloy of Diabetes, Business Campus Garching; Garching Germany
| | - Karl-Werner Schramm
- Helmholtz Center Munich-German Research Center for Environmental Health, Molecular EXposomics; Neuherberg Germany
- Department für Biowissenschaftliche Grundlagen; TUM, Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt; Freising Germany
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Dai F, Yuan L, Fang J, Zhang Q, Wang K. Impaired decision making under risky conditions in the acute phase of Graves' thyroitoxicosis. Neurosci Lett 2017; 661:1-4. [PMID: 28859864 DOI: 10.1016/j.neulet.2017.08.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 07/27/2017] [Accepted: 08/26/2017] [Indexed: 11/29/2022]
Abstract
The patients with Graves' thyroitoxicosis often complain that they have neuropsychiatric symptoms and impaired cognitive function. Decision making is important and complex process involving the interaction and integration of a series of cognitive components. In the 31 newly diagnosed patients with Graves' thyroitoxicosis and 30 healthy controls, we used the Hamilton Anxiety Rating Scale (HAMD), Hamilton Depression Rating Scale (HAMD) and The Game of Dice Task (GDT) to assess the emotion and decision making under risky conditions. The patients with Graves' disease had higher score on HAMA and HAMD, and had poorer performance in GDT than healthy controls. A negative correlation was found between utilization of negative feedback and score of HAMA in the patients with Graves' disease. Our findings in Graves' disease might be association with the extensive brain disorders including prefrontal cortex and the limbic system, and dopamine dysfunction.
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Affiliation(s)
- Fang Dai
- Department of Endocrinology, The First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
| | - Lili Yuan
- Department of Neurology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, PR China
| | - Juan Fang
- Department of Neurology, The First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
| | - Qiu Zhang
- Department of Endocrinology, The First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China.
| | - Kai Wang
- Department of Neurology, The First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China.
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11
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Ozer İ, Guzel I, Orhan G, Erkılınç S, Öztekin N, Ak F, Taşçı Y. A prospective case control questionnaire study for restless leg syndrome on 600 pregnant women. J Matern Fetal Neonatal Med 2017; 30:2895-2899. [DOI: 10.3109/14767058.2016.1170801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- İrfan Ozer
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women’s Health Education and Research Hospital, Ankara, Turkey
| | - Işıl Guzel
- Department of Neurology, Ankara Numune Education and Research Hospital, Ankara, Turkey
| | - Gürdal Orhan
- Department of Neurology, Ankara Numune Education and Research Hospital, Ankara, Turkey
| | - Selçuk Erkılınç
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women’s Health Education and Research Hospital, Ankara, Turkey
| | - Neşe Öztekin
- Department of Neurology, Ankara Numune Education and Research Hospital, Ankara, Turkey
| | - Fikri Ak
- Department of Neurology, Ankara Numune Education and Research Hospital, Ankara, Turkey
| | - Yasemin Taşçı
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women’s Health Education and Research Hospital, Ankara, Turkey
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Delitala AP, Terracciano A, Fiorillo E, Orrù V, Schlessinger D, Cucca F. Depressive symptoms, thyroid hormone and autoimmunity in a population-based cohort from Sardinia. J Affect Disord 2016; 191:82-7. [PMID: 26655116 PMCID: PMC4715961 DOI: 10.1016/j.jad.2015.11.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/24/2015] [Accepted: 11/15/2015] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To evaluate the association between depressive symptoms and thyroid autoimmunity, and the effect of thyroid hormone on the risk of depression. METHODS We included 3138 individuals from SardiNIA project, none of whom was taking thyroid medication and antidepressants. Thyrotropin (TSH), free thyroxine (FT4), and antibodies against thyroperoxidase (TPOAb) were measured in all the sample. Depressive symptoms were assessed with Center for Epidemiologic Studies Depression Scale (CES-D). RESULTS We found no association between TPOAb and depressive symptoms and no linear association between TSH or FT4 levels and depressive symptoms. However, individuals in the lowest and highest FT4 quintiles showed a higher CES-D score compared to individuals in the middle quintile. In addition, participants in the lowest and highest FT4 quintiles had an increased risk of CES-D≥16 with odds ratios of 1.44 (95% CI=1.09-1.89) and 1.33 (95% CI=1.01-1.77), respectively. LIMITATIONS Cross-sectional design of the study. CONCLUSIONS A U-shaped relation was found between FT4 and depressive symptoms: compared to average FT4 values, both high and low thyroid function was associated with more depressive symptoms. Further studies are necessary to determine the exact cause-effect relation of this association.
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Affiliation(s)
- Alessandro P Delitala
- Azienda Ospedaliero-Universitaria di Sassari, Via Michele Coppino 26a, Sassari 07100, Italy.
| | - Antonio Terracciano
- Department of Geriatrics, Florida State University College of Medicine, 1115 W. Call Street, Tallahassee, FL 32306, USA.
| | - Edoardo Fiorillo
- Istituto di Ricerca Genetica e Biomedica (IRGB), Consiglio Nazionale delle Ricerche, c/o Cittadella Universitaria di Monserrato, Cagliari, Italy.
| | - Valeria Orrù
- Istituto di Ricerca Genetica e Biomedica (IRGB), Consiglio Nazionale delle Ricerche, c/o Cittadella Universitaria di Monserrato, Cagliari, Italy.
| | | | - Francesco Cucca
- Istituto di Ricerca Genetica e Biomedica (IRGB), Consiglio Nazionale delle Ricerche, c/o Cittadella Universitaria di Monserrato, Cagliari, Italy; Department of Biomedical Sciences, Azienda Ospedaliero-Universitaria di Sassari, Sassari, Italy.
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13
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Pingitore A, Iervasi G, Forini F. Role of the Thyroid System in the Dynamic Complex Network of Cardioprotection. Eur Cardiol 2016; 11:36-42. [PMID: 30310446 DOI: 10.15420/ecr.2016:9:2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Cardioprotection is a common goal of new therapeutic strategies in patients with coronary artery disease and/or left ventricular dysfunction. Myocardial damage following ischaemia/reperfusion injury lead to left ventricular adverse remodelling through many mechanisms arising from different cell types in different myocardial districts, namely the border and remote zone. Cardioprotection must face this complex, dynamic network of cooperating units. In this scenario, thyroid hormones can represent an effective therapeutic strategy due to the numerous actions and regulating mechanisms carried out at the level of the myocytes, interstitium and the vasculature, as well as to the activation of different pro-survival intracellular pathways involved in cardioprotection.
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Affiliation(s)
| | - Giorgio Iervasi
- Clinical Physiology Institute, National Research Council (CNR), Pisa, Italy
| | - Francesca Forini
- Clinical Physiology Institute, National Research Council (CNR), Pisa, Italy
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14
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Yuan L, Tian Y, Zhang F, Ma H, Chen X, Dai F, Wang K. Decision-Making in Patients with Hyperthyroidism: A Neuropsychological Study. PLoS One 2015; 10:e0129773. [PMID: 26090955 PMCID: PMC4474662 DOI: 10.1371/journal.pone.0129773] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 05/13/2015] [Indexed: 02/08/2023] Open
Abstract
Introduction Cognitive and behavioral impairments are common in patients with abnormal thyroid function; these impairments cause a reduction in their quality of life. The current study investigates the decision making performance in patients with hyperthyroidism to explore the possible mechanism of their cognitive and behavioral impairments. Methods Thirty-eight patients with hyperthyroidism and forty healthy control subjects were recruited to perform the Iowa Gambling Task (IGT), which assessed decision making under ambiguous conditions. Results Patients with hyperthyroidism had a higher score on the Zung Self-Rating Anxiety Scale (Z-SAS), and exhibited poorer executive function and IGT performance than did healthy control subjects. The patients preferred to choose decks with a high immediate reward, despite a higher future punishment, and were not capable of effectively using feedback information from previous choices. No clinical characteristics were associated with the total net score of the IGT in the current study. Conclusions Patients with hyperthyroidism had decision-making impairment under ambiguous conditions. The deficits may result from frontal cortex and limbic system metabolic disorders and dopamine dysfunction.
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Affiliation(s)
- Lili Yuan
- Department of Neurology, First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
| | - Yanghua Tian
- Department of Neurology, First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
| | - Fangfang Zhang
- Department of Neurology, First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
| | - Huijuan Ma
- Department of Neurology, First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
| | - Xingui Chen
- Department of Neurology, First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
| | - Fang Dai
- Department of Endocrinology, First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
- * E-mail: (FD); (KW)
| | - Kai Wang
- Department of Neurology, First Hospital of Anhui Medical University, Hefei, Anhui Province, PR China
- * E-mail: (FD); (KW)
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15
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Rodríguez Martín C, Miranda Riaño S, Celorrio San Miguel M, Prieto de Paula JM. Restless legs syndrome and hypothyroidism. Rev Clin Esp 2015; 215:247-9. [PMID: 25640256 DOI: 10.1016/j.rce.2014.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 12/06/2014] [Indexed: 11/28/2022]
Affiliation(s)
- C Rodríguez Martín
- Servicio de Medicina Interna, Hospital Clínico Universitario de Valladolid, Valladolid, España
| | - S Miranda Riaño
- Servicio de Medicina Interna, Hospital Clínico Universitario de Valladolid, Valladolid, España
| | - M Celorrio San Miguel
- Servicio de Medicina Interna, Hospital Clínico Universitario de Valladolid, Valladolid, España
| | - J M Prieto de Paula
- Servicio de Medicina Interna, Hospital Clínico Universitario de Valladolid, Valladolid, España.
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16
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Fonseca TL, Teixeira MBCG, Miranda-Rodrigues M, Silva MV, Martins GM, Costa CC, Arita DY, Perez JD, Casarini DE, Brum PC, Gouveia CHA. Thyroid hormone interacts with the sympathetic nervous system to modulate bone mass and structure in young adult mice. Am J Physiol Endocrinol Metab 2014; 307:E408-18. [PMID: 25005498 DOI: 10.1152/ajpendo.00643.2013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To investigate whether thyroid hormone (TH) interacts with the sympathetic nervous system (SNS) to modulate bone mass and structure, we studied the effects of daily T3 treatment in a supraphysiological dose for 12 wk on the bone of young adult mice with chronic sympathetic hyperactivity owing to double-gene disruption of adrenoceptors that negatively regulate norepinephrine release, α(2A)-AR, and α(2C)-AR (α(2A/2C)-AR(-/-) mice). As expected, T3 treatment caused a generalized decrease in the areal bone mineral density (aBMD) of WT mice (determined by DEXA), followed by deleterious effects on the trabecular and cortical bone microstructural parameters (determined by μCT) of the femur and vertebra and on the biomechanical properties (maximum load, ultimate load, and stiffness) of the femur. Surprisingly, α(2A/2C)-AR(-/-) mice were resistant to most of these T3-induced negative effects. Interestingly, the mRNA expression of osteoprotegerin, a protein that limits osteoclast activity, was upregulated and downregulated by T3 in the bone of α(2A/2C)-AR(-/-) and WT mice, respectively. β1-AR mRNA expression and IGF-I serum levels, which exert bone anabolic effects, were increased by T3 treatment only in α(2A/2C)-AR(-/-) mice. As expected, T3 inhibited the cell growth of calvaria-derived osteoblasts isolated from WT mice, but this effect was abolished or reverted in cells isolated from KO mice. Collectively, these findings support the hypothesis of a TH-SNS interaction to control bone mass and structure of young adult mice and suggests that this interaction may involve α2-AR signaling. Finally, the present findings offer new insights into the mechanisms through which TH regulates bone mass, structure, and physiology.
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Affiliation(s)
- Tatiana L Fonseca
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marilia B C G Teixeira
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Marcos V Silva
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Gisele M Martins
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Cristiane C Costa
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Danielle Y Arita
- Department of Internal Medicine, Renal Division, Federal University of São Paulo School of Medicine, São Paulo, Brazil; and
| | - Juliana D Perez
- Department of Internal Medicine, Renal Division, Federal University of São Paulo School of Medicine, São Paulo, Brazil; and
| | - Dulce E Casarini
- Department of Internal Medicine, Renal Division, Federal University of São Paulo School of Medicine, São Paulo, Brazil; and
| | - Patricia C Brum
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Cecilia H A Gouveia
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil;
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17
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Yuan L, Tian Y, Zhang F, Dai F, Luo L, Fan J, Wang K. Impairment of attention networks in patients with untreated hyperthyroidism. Neurosci Lett 2014; 574:26-30. [DOI: 10.1016/j.neulet.2014.05.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 04/29/2014] [Accepted: 05/08/2014] [Indexed: 10/25/2022]
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18
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Abstract
Individuals with congenital hypothyroidism (CH), even those diagnosed and treated early, experience selective cognitive deficits, the most striking of which involves the visuocognitive domain. However, the range and nature of their visuocognitive disturbances is not fully understood. We assessed a range of higher-order visuocognitive abilities in 19 children and adolescents with CH and 19 age- and sex-matched typically developing peers (TD) using a battery of neuropsychological tests and a novel self-report measure of sense of direction. CH scored lower than TD on direct tests of visuocognitive function (judging line orientation, parts-to-whole localization, copying three-dimensional block towers, discriminating designs, and matching unfamiliar faces in ¾ profile-view) as well as on self-reported problems in spatial ability. Visuocognitive problems were not global as CH and TD did not differ at copying two-dimensional block designs, mentally rotating and matching abstract shapes, or at matching unfamiliar front-view faces, design features, or designs that engaged either figure-ground segregation, visual constancy, or closure. Early and concurrent thyroid stimulating hormone (TSH) levels were associated with visuocognitive ability, although attention and working memory were not. Individuals with CH exhibit selective visuocognitive weaknesses, some of which are related to early and concurrent TSH levels.
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19
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Hassan WA, Rahman TA, Aly MS, Shahat AS. Alterations in monoamines level in discrete brain regions and other peripheral tissues in young and adult male rats during experimental hyperthyroidism. Int J Dev Neurosci 2013; 31:311-8. [DOI: 10.1016/j.ijdevneu.2013.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 03/03/2013] [Accepted: 03/03/2013] [Indexed: 11/26/2022] Open
Affiliation(s)
- Wafaa A. Hassan
- National Organisation for Drug Control and ResearchHormone Evaluation Department11511CairoEgypt
| | | | - Mona S. Aly
- Cairo UniversityFaculty of Science, Zoology DepartmentCairo12613Egypt
| | - Asmaa S. Shahat
- National Organisation for Drug Control and ResearchHormone Evaluation Department11511CairoEgypt
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20
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Hassan WA, Aly MS, Rahman TA, Shahat AS. Impact of experimental hypothyroidism on monoamines level in discrete brain regions and other peripheral tissues of young and adult male rats. Int J Dev Neurosci 2013; 31:225-33. [PMID: 23411049 DOI: 10.1016/j.ijdevneu.2013.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 01/17/2013] [Accepted: 02/01/2013] [Indexed: 10/27/2022] Open
Abstract
The levels of dopamine (DA), norepinephrine (NE) and serotonin (5-HT) in different brain regions as well as in blood plasma, cardiac muscle and adrenal gland of young and adult male albino rats were measured following experimentally induced hypothyroidism. Hypothyroidism induced by daily oral administration of propylthiouracil (PTU, 5mg/kg body wt) caused a significant reduction in DA levels in most of the tissues examined of both young and adult rats after 21 and 28 days, in NE levels after all the time intervals studied in young rats, and after 21 and 28 days in adult rats. 5-HT exhibited a significant reduction in the selected brain regions and blood plasma after 21 and 28 days and in cardiac muscle after all the time intervals in the two age groups of animals. It may be suggested that the changes in monoamine levels induced by hypothyroidism may be due to disturbance in the synthesis and release of these amines through the neurons impairment or may be due to an alteration pattern of their synthesizing and/or degradative enzymes.
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Affiliation(s)
- Wafaa A Hassan
- National Organization for Drug Control and Research, Hormone Evaluation Department, Cairo 11511, Egypt.
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21
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Moodley K, Botha J, Raidoo DM, Naidoo S. Immuno-localisation of anti-thyroid antibodies in adult human cerebral cortex. J Neurol Sci 2011; 302:114-7. [DOI: 10.1016/j.jns.2010.11.027] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 11/24/2010] [Accepted: 11/30/2010] [Indexed: 10/18/2022]
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22
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Abstract
Thyroid hormones play a critical role in the metabolic activity of the adult brain, and neuropsychiatric manifestations of thyroid disease have long been recognised. However, it is only recently that methodology such as functional neuroimaging has been available to facilitate investigation of thyroid hormone metabolism. Although the role of thyroid hormones in the adult brain is not yet specified, it is clear that without optimal thyroid function, mood disturbance, cognitive impairment and other psychiatric symptoms can emerge. Additionally, laboratory measurements of peripheral thyroid function may not adequately characterise central thyroid metabolism. Here, we review the relationship between thyroid hormone and neuropsychiatric symptoms in patients with primary thyroid disease and primary mood disorders.
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Affiliation(s)
- M Bauer
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
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23
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Minai OA, Malik N, Foldvary N, Bair N, Golish JA. Prevalence and characteristics of restless legs syndrome in patients with pulmonary hypertension. J Heart Lung Transplant 2008; 27:335-40. [PMID: 18342758 DOI: 10.1016/j.healun.2007.12.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Revised: 12/04/2007] [Accepted: 12/17/2007] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND Patients with pulmonary hypertension (PH) have an increased prevalence of risk factors for restless legs syndrome (RLS). We performed a cross-sectional study to determine the prevalence and characteristics of RLS in this population. METHODS Patients filled out two questionnaires during a visit: (1) a diagnostic tool for RLS, based on the core clinical features; and (2) a 10-question rating scale used to assess severity. Data were obtained by medical record review with regard to demographics, characteristics of PH and known RLS risk factors. RESULTS Restless legs syndrome was found in 43.6% (24 of 55) (mean age +/- SD: 49 +/- 14 years; 41 women, 14 men) of patients and 54% of these had moderate or severe RLS. Patients with RLS were younger but gender differences were not appreciated. Presence of RLS did not correlate with measures of PH severity; however, patients with RLS were more likely to have a better 6-minute walk distance (p = 0.015) and lower BNP level (p = 0.07) and less likely to be WHO Class IV or require oxygen during the 6-minute walk test. Patients with a history of hypothyroidism (67%; p = 0.04) and those on opioids for relief of leg pain (69%) were more likely to have RLS. CONCLUSIONS Patients with PH had a very high prevalence of RLS and most had moderate or severe symptoms. RLS was more common in more active patients and those who were hypothyroid or on opioids for relief of leg pain. Patients with PH should be screened for RLS because good treatment options are available.
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Affiliation(s)
- Omar A Minai
- Department of Pulmonary, Allergy, and Critical Care Medicine and Sleep Disorders Center, Cleveland Clinic Foundation, Cleveland, Ohio 44195-5038, USA.
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24
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Ahmed OM, El‐Gareib A, El‐bakry A, Abd El‐Tawab S, Ahmed R. Thyroid hormones states and brain development interactions. Int J Dev Neurosci 2007; 26:147-209. [DOI: 10.1016/j.ijdevneu.2007.09.011] [Citation(s) in RCA: 202] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2007] [Revised: 09/17/2007] [Accepted: 09/26/2007] [Indexed: 12/20/2022] Open
Affiliation(s)
- Osama M. Ahmed
- Zoology Department, Faculty of ScienceBeni Suef UniversityEgypt
| | - A.W. El‐Gareib
- Zoology Department, Faculty of ScienceCairo UniversityEgypt
| | - A.M. El‐bakry
- Zoology Department, Faculty of ScienceBeni Suef UniversityEgypt
| | | | - R.G. Ahmed
- Zoology Department, Faculty of ScienceBeni Suef UniversityEgypt
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25
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Minai OA, Golish JA, Yataco JC, Budev MM, Blazey H, Giannini C. Restless legs syndrome in lung transplant recipients. J Heart Lung Transplant 2007; 26:24-9. [PMID: 17234513 DOI: 10.1016/j.healun.2006.10.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2006] [Revised: 10/03/2006] [Accepted: 10/19/2006] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Given the increased incidence of steroid-induced diabetes and drug-induced anemia, renal dysfunction and neuropathy, we believed that lung transplant recipients would be at an increased risk of developing restless legs syndrome (RLS). We performed a cross-sectional, observational study to determine the prevalence and characteristics of RLS in this population. METHODS Patients filled out two questionnaires during a routine visit: (1) a diagnostic tool for RLS, based on the core clinical features; and (2) a 10-question rating scale used to assess severity. Data were obtained by medical record review with regard to demographics, lung transplant characteristics and known risk factors for RLS. RESULTS Forty-two lung transplant recipients (age 46.6 +/- 15.4 years [mean +/- SD]; 24 women, 18 men) without a family history of RLS were recruited. RLS was found in 47.6% (20 of 42) of the patients and 80% had moderate or severe RLS. Seventy-five percent of those with RLS were women (p = 0.03). RLS patients had a serum calcium level that was higher than those without RLS (p = 0.05) and were more likely to be recipient (p = 0.02) or donor positive (p = 0.07) for cytomegalovirus (CMV). All 4 hypothyroid patients on replacement therapy were in the RLS group. The prevalence of diabetes mellitus and chronic renal failure were not significantly different between the RLS and non-RLS groups. CONCLUSIONS There was a very high prevalence of RLS in our lung transplant population and most patients had moderate or severe symptoms. RLS patients were more likely to be women, donor or recipient positive for CMV, hypothyroid, and to have an elevated serum calcium level.
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Affiliation(s)
- Omar A Minai
- Department of Pulmonary, Allergy, and Critical Care, Cleveland Clinic, Cleveland, Ohio 44195-5038, USA.
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26
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Tan EK, Chan LL. Movement disorders associated with hyperthyroidism: Expanding the phenotype. Mov Disord 2006; 21:1054-5. [PMID: 16615065 DOI: 10.1002/mds.20883] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Tan EK, Ho SC, Koh L, Pavanni R. An urge to move with L-thyroxine: clinical, biochemical, and polysomnographic correlation. Mov Disord 2005; 19:1365-7. [PMID: 15378680 DOI: 10.1002/mds.20219] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
We report on the cause and effect relationship of restless legs syndrome (RLS) with L-thyroxine treatment in a hypothyroid patient with low serum ferritin. Upon challenge and withdrawal of L-thyroxine, there was a significant change in the International Restless Legs Syndrome Study Group severity score (26/40 to 6/40), the periodic limb movements (PMLS) index (20/hour to 10/hour), the number of arousals due to PLMS (59 to 22), sleep efficiency (74 to 85%), and biochemical parameters. RLS symptoms can complicate thyroxine replacement in at-risk hypothyroid patients with low serum ferritin. Early diagnosis and iron replacement could significantly reduce patient morbidity.
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Affiliation(s)
- Eng-King Tan
- Department of Neurology, Singapore General Hospital, Singapore.
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28
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Tan EK, Ho SC, Eng P, Loh LM, Koh L, Lum SY, Teoh ML, Yih Y, Khoo D. Restless legs symptoms in thyroid disorders. Parkinsonism Relat Disord 2004; 10:149-51. [PMID: 15036169 DOI: 10.1016/j.parkreldis.2003.11.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2003] [Revised: 11/20/2003] [Accepted: 11/25/2003] [Indexed: 11/28/2022]
Abstract
Dopaminergic dysfunction is associated with thyroid disorders and restless legs syndrome (RLS). In a 'face-to-face' interview, we evaluated for RLS using the diagnostic criteria of the International Restless Legs Syndrome Study Group (IRLSSG) in patients diagnosed biochemically with either hyper- or hypothyroidism, and in controls without thyroid disorders. Amongst 146 consecutive patients with biochemically confirmed thyroid disorders, none satisfied all the IRLSSG criteria of RLS, similar to the control population (0.2%, 1/434). However, we found 8.2% (12/146) with RLS-like symptoms (satisfied the first 3 IRLSSG criteria) compared to 0.9% (4/434) in the controls (p < 0.0001). Four (33.3%) of these patients reported complete resolution of these symptoms after treatment for their thyroid condition. In conclusion, while RLS-like symptoms were observed in some patients with thyroid disorders, our study demonstrates no significant difference of RLS prevalence between patients with thyroid disorders and euthyroid controls.
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Affiliation(s)
- E K Tan
- Department of Neurology, Division of Medicine, Singapore General Hospital, Outram Road, Singapore, Singapore 169608.
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29
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Queiroz MS, Shao Y, Ismail-Beigi F. Effect of thyroid hormone on uncoupling protein-3 mRNA expression in rat heart and skeletal muscle. Thyroid 2004; 14:177-85. [PMID: 15072699 DOI: 10.1089/105072504773297849] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Thyroid hormones (triiodothyronine [T3] and thyroxine [T4]) stimulate UCP-3 expression in skeletal muscle. We examined whether thyroid hormone-induced changes in uncoupling protein (UCP)-3 mRNA expression are related to directs effects of T3 or reflect secondary effects of the hormone through stimulation of renin-angiotensin or beta-adrenergic systems. Hyperthyroidism was produced by three injections of 100 microg T3/100 g body weight on alternate days with or without concomitant treatment with either captopril (an angiotensin-converting enzyme [ACE] inhibitor), propranolol (a beta-blocker) or clenbuterol (a beta2-agonist). The relative abundance of UCP-3 mRNA was measured in ventricular myocardium and skeletal muscle (gastrocnemius and soleus). T3 resulted in a significant increase in the relative abundance of UCP-3 in heart and skeletal muscle (p < 0.05), and the effect was not altered by captopril or propanolol; the inhibitors alone had no effect of UCP-3 mRNA content. There was no synergistic or additive effect of T3 and clenbuterol on UCP-3 mRNA expression in skeletal muscle. Increased UCP-3 mRNA levels were associated with increased UCP-3 protein expression in skeletal muscle. We conclude that the effect of T3 on UCP-3 expression in cardiac and skeletal muscle is not dependent on either angiotensin II or the beta-adrenergic system and probably reflects a direct action of the hormone on UCP-3 gene expression.
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Affiliation(s)
- Marcia Silva Queiroz
- Department of Medicine and of Physiology and Biophysics, Case Western Reserve University, Cleveland, Ohio 44106-4951, USA
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