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Calcaterra V, Mameli C, Macedoni M, De Silvestri A, Sgambetterra L, Nosenzo F, Redaelli FC, Petitti A, Bosetti A, Zuccotti G. Investigating the connection among thyroid function, sensitivity to thyroid hormones, and metabolic syndrome in euthyroid children and adolescents affected by type 1 diabetes. J Pediatr Endocrinol Metab 2024; 37:347-352. [PMID: 38462926 DOI: 10.1515/jpem-2023-0565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 02/18/2024] [Indexed: 03/12/2024]
Abstract
OBJECTIVES A connection between thyroid hormones (THs) and diverse metabolic pathways has been reported. We evaluated thyroid function and tissue sensitivity to THs in children and adolescents with T1D in comparison to euthyroid controls. Additionally, we investigate whether a relationship exists between sensitivity indices and metabolic parameters. METHODS A retrospective analysis was conducted on 80 pediatric patients diagnosed with T1D. Clinical parameters, TSH, FT3, FT4, and the presence of MS were documented. Additionally, indices of peripheral sensitivity (FT3/FT4 ratio) and central sensitivity (TSH index, TSHI; TSH T4 resistance index, TT4RI; TSH T3 resistance index, TT3RI) were assessed. Thirty healthy subjects were considered as controls. RESULTS The overall prevalence of MS was 7.27 %, with MS identified in 8 out of 80 (10 %) T1D subjects; none of the controls manifested MS (p<0.01). No significant differences were observed in indexes of tissue sensitivity to THs between subjects with or without MS (all p>0.05). Correlations between THs and indexes of THs tissue sensitivity and metabolic parameters in controls and T1D patients were noted. CONCLUSIONS This study affirms a heightened prevalence of MS in children with T1D compared to controls and underscores the potential role of THs in maintaining metabolic equilibrium.
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Affiliation(s)
- Valeria Calcaterra
- Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia Pavia, Italy
- Department of Pediatrics, Buzzi Children's Hospital Milan, Italy
| | - Chiara Mameli
- Department of Pediatrics, Buzzi Children's Hospital Milan, Italy
- Department of Biomedical and Clinical Science, University of Milano, Milan, Italy
| | | | - Annalisa De Silvestri
- Biometry & Clinical Epidemiology, Scientific Direction, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Federico Nosenzo
- Department of Pediatrics, Buzzi Children's Hospital Milan, Italy
| | | | - Agnese Petitti
- Department of Pediatrics, Buzzi Children's Hospital Milan, Italy
| | | | - Gianvincenzo Zuccotti
- Department of Pediatrics, Buzzi Children's Hospital Milan, Italy
- Department of Biomedical and Clinical Science, University of Milano, Milan, Italy
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Guo M, Wang X, Li Y, Luo A, Zhao Y, Luo X, Li S. Intermittent Fasting on Neurologic Diseases: Potential Role of Gut Microbiota. Nutrients 2023; 15:4915. [PMID: 38068773 PMCID: PMC10707790 DOI: 10.3390/nu15234915] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/13/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
As the global population ages, the prevalence of neurodegenerative diseases is surging. These disorders have a multifaceted pathogenesis, entwined with genetic and environmental factors. Emerging research underscores the profound influence of diet on the development and progression of health conditions. Intermittent fasting (IF), a dietary pattern that is increasingly embraced and recommended, has demonstrated potential in improving neurophysiological functions and mitigating pathological injuries with few adverse effects. Although the precise mechanisms of IF's beneficial impact are not yet completely understood, gut microbiota and their metabolites are believed to be pivotal in mediating these effects. This review endeavors to thoroughly examine current studies on the shifts in gut microbiota and metabolite profiles prompted by IF, and their possible consequences for neural health. It also highlights the significance of dietary strategies as a clinical consideration for those with neurological conditions.
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Affiliation(s)
- Mingke Guo
- Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Department of Anesthesiology, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (M.G.); (X.W.); (Y.L.); (A.L.); (Y.Z.)
| | - Xuan Wang
- Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Department of Anesthesiology, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (M.G.); (X.W.); (Y.L.); (A.L.); (Y.Z.)
| | - Yujuan Li
- Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Department of Anesthesiology, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (M.G.); (X.W.); (Y.L.); (A.L.); (Y.Z.)
| | - Ailin Luo
- Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Department of Anesthesiology, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (M.G.); (X.W.); (Y.L.); (A.L.); (Y.Z.)
| | - Yilin Zhao
- Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Department of Anesthesiology, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (M.G.); (X.W.); (Y.L.); (A.L.); (Y.Z.)
| | - Xiaoxiao Luo
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shiyong Li
- Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Department of Anesthesiology, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (M.G.); (X.W.); (Y.L.); (A.L.); (Y.Z.)
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Cheng H, Hu Y, Zhao H, Zhou G, Wang G, Ma C, Xu Y. Exploring the association between triglyceride-glucose index and thyroid function. Eur J Med Res 2023; 28:508. [PMID: 37946276 PMCID: PMC10636949 DOI: 10.1186/s40001-023-01501-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Thyroid dysfunction is associated with abnormal glucose-insulin homeostasis, and the triglyceride-glucose (TyG) index has been recommended as a convenient surrogate of insulin resistance (IR). This study aimed to investigate the relationship between TyG and thyroid function in the US population. METHODS We analyzed data from the National Health and Nutrition Examination Survey (NHANES) conducted from 2007 to 2012 in a cross-sectional manner. Aside from conventional thyroid parameters, our study evaluated the central sensitivity to thyroid hormones (THs) using the thyroid feedback quantile-based index (TFQI), thyrotropin resistance index (TT4RI), and thyrotropin index (TSHI). To evaluate peripheral sensitivity to THs, we calculated the ratio of free triiodothyronine (FT3) to free thyroxine (FT4) and the sum activity of peripheral deiodinases (SPINA-GD). In the 1848 adults, multivariable linear regression, subgroup, and interaction analyses were employed to estimate the association between TyG and thyroid parameters. The nonlinear relationship was addressed by smooth curve fittings and generalized additive models. RESULTS After adjusting covariates, we demonstrated a significant negative association between TyG and FT4 (β = - 0.57, p < 0.001), and a positive relationship between TyG and thyroid-stimulating hormone (β = 0.34, p = 0.037), as well as TgAb (β = 17.06, p = 0.005). Subgroup analysis indicated that the association between TyG and TgAb was more pronounced in the female subjects (β = 32.39, p < 0.001, p for interaction = 0.021). We also confirmed an inverse correlation between TyG and central sensitivity to THs, as assessed by TSHI and TT4RI (βTSHI = 0.12, p < 0.001; βTT4RI = 2.54, p = 0.023). In terms of peripheral sensitivity to THs, we found a significant positive correlation between TyG and FT3/FT4 (β = 0.03, p = 0.004), and SPINA-GD (β = 2.93, p = 0.004). CONCLUSION The present study established a noteworthy association between TyG and thyroid parameters, indicating a strong link between IR and thyroid dysfunction. Further investigations are warranted to validate these results.
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Affiliation(s)
- Hui Cheng
- Department of General Surgery, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No.155, Hanzhong Road, Qinhuai District, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Yanyan Hu
- Nursing College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Haoran Zhao
- Department of General Surgery, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No.155, Hanzhong Road, Qinhuai District, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Guowei Zhou
- Department of General Surgery, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No.155, Hanzhong Road, Qinhuai District, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Gaoyuan Wang
- Department of General Surgery, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No.155, Hanzhong Road, Qinhuai District, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Chaoqun Ma
- Department of General Surgery, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No.155, Hanzhong Road, Qinhuai District, Nanjing, 210029, Jiangsu, People's Republic of China.
| | - Yan Xu
- Outpatient Department, Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, The Second Hospital of Nanjing, No.1, Zhongfu Road, Gulou District, Nanjing, 210003, Jiangsu, People's Republic of China.
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Cooper ID, Kyriakidou Y, Edwards K, Petagine L, Seyfried TN, Duraj T, Soto-Mota A, Scarborough A, Jacome SL, Brookler K, Borgognoni V, Novaes V, Al-Faour R, Elliott BT. Ketosis Suppression and Ageing (KetoSAge): The Effects of Suppressing Ketosis in Long Term Keto-Adapted Non-Athletic Females. Int J Mol Sci 2023; 24:15621. [PMID: 37958602 PMCID: PMC10650498 DOI: 10.3390/ijms242115621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Most studies on ketosis have focused on short-term effects, male athletes, or weight loss. Hereby, we studied the effects of short-term ketosis suppression in healthy women on long-standing ketosis. Ten lean (BMI 20.5 ± 1.4), metabolically healthy, pre-menopausal women (age 32.3 ± 8.9) maintaining nutritional ketosis (NK) for > 1 year (3.9 years ± 2.3) underwent three 21-day phases: nutritional ketosis (NK; P1), suppressed ketosis (SuK; P2), and returned to NK (P3). Adherence to each phase was confirmed with daily capillary D-beta-hydroxybutyrate (BHB) tests (P1 = 1.9 ± 0.7; P2 = 0.1 ± 0.1; and P3 = 1.9 ± 0.6 pmol/L). Ageing biomarkers and anthropometrics were evaluated at the end of each phase. Ketosis suppression significantly increased: insulin, 1.78-fold from 33.60 (± 8.63) to 59.80 (± 14.69) pmol/L (p = 0.0002); IGF1, 1.83-fold from 149.30 (± 32.96) to 273.40 (± 85.66) µg/L (p = 0.0045); glucose, 1.17-fold from 78.6 (± 9.5) to 92.2 (± 10.6) mg/dL (p = 0.0088); respiratory quotient (RQ), 1.09-fold 0.66 (± 0.05) to 0.72 (± 0.06; p = 0.0427); and PAI-1, 13.34 (± 6.85) to 16.69 (± 6.26) ng/mL (p = 0.0428). VEGF, EGF, and monocyte chemotactic protein also significantly increased, indicating a pro-inflammatory shift. Sustained ketosis showed no adverse health effects, and may mitigate hyperinsulinemia without impairing metabolic flexibility in metabolically healthy women.
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Affiliation(s)
- Isabella D. Cooper
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Yvoni Kyriakidou
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Kurtis Edwards
- Cancer Biomarkers and Mechanisms Group, School of Life Sciences, University of Westminster, London W1W 6UW, UK;
| | - Lucy Petagine
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Thomas N. Seyfried
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA; (T.N.S.); (T.D.)
| | - Tomas Duraj
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA; (T.N.S.); (T.D.)
| | - Adrian Soto-Mota
- Metabolic Diseases Research Unit, National Institute of Medical Sciences and Nutrition Salvador Zubiran, Mexico City 14080, Mexico;
- Tecnologico de Monterrey, School of Medicine, Mexico City 14380, Mexico
| | - Andrew Scarborough
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Sandra L. Jacome
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Kenneth Brookler
- Retired former Research Collaborator, Aerospace Medicine and Vestibular Research Laboratory, Mayo Clinic, Scottsdale, AZ 85259, USA;
| | - Valentina Borgognoni
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Vanusa Novaes
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Rima Al-Faour
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Bradley T. Elliott
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
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Martens H. Invited Review: Increasing Milk Yield and Negative Energy Balance: A Gordian Knot for Dairy Cows? Animals (Basel) 2023; 13:3097. [PMID: 37835703 PMCID: PMC10571806 DOI: 10.3390/ani13193097] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
The continued increase in milk production during the last century has not been accompanied by an adequate dry matter intake (DMI) by cows, which therefore experience a negative energy balance (NEB). NEB is low and of minor importance at low milk yield (MY), such as for the nutrition of one calf, and under these circumstances is considered "natural". MY and low DMI around parturition are correlated and are the reason for the genetic correlation between increasing MY and increasing NEB up to 2000 MJ or more for 2-3 months postpartum in high-genetic-merit dairy cows. The extension and duration of NEB in high-producing cows cannot be judged as "natural" and are compensated by the mobilization of nutrients, particularly of fat. The released non-esterified fatty acids (NEFAs) overwhelm the metabolic capacity of the cow and lead to the ectopic deposition of NEFAs as triglycerides (TGs) in the liver. The subsequent lipidosis and the concomitant hampered liver functions cause subclinical and clinical ketosis, both of which are associated with "production diseases", including oxidative and endoplasmatic stress, inflammation and immunosuppression. These metabolic alterations are regulated by homeorhesis, with the priority of the physiological function of milk production. The prioritization of one function, namely, milk yield, possibly results in restrictions in other physiological (health) functions under conditions of limited resources (NEB). The hormonal framework for this metabolic environment is the high concentration of growth hormone (GH), the low concentration of insulin in connection with GH-dependent insulin resistance and the low concentration of IGF-1, the so-called GH-IGF-1 axis. The fine tuning of the GH-IGF-1 axis is uncoupled because the expression of the growth hormone receptor (GHR-1A) in the liver is reduced with increasing MY. The uncoupled GH-IGF-1 axis is a serious impairment for the GH-dependent stimulation of gluconeogenesis in the liver with continued increased lipolysis in fat tissue. It facilitates the pathogenesis of lipidosis with ketosis and, secondarily, "production diseases". Unfortunately, MY is still increasing at inadequate DMI with increasing NEB and elevated NEFA and beta-hydroxybutyric acid concentrations under conditions of low glucose, thereby adding health risks. The high incidences of diseases and of early culling and mortality in dairy cows are well documented and cause severe economic problems with a waste of resources and a challenge to the environment. Moreover, the growing public concerns about such production conditions in agriculture can no longer be ignored.
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Affiliation(s)
- Holger Martens
- Institute of Veterinary Physiology, Free University of Berlin, Oertzenweg 19b, 14163 Berlin, Germany
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Lv F, Cai X, Li Y, Zhang X, Zhou X, Han X, Ji L. Sensitivity to thyroid hormone and risk of components of metabolic syndrome in a Chinese euthyroid population. J Diabetes 2023; 15:900-910. [PMID: 37429739 PMCID: PMC10590679 DOI: 10.1111/1753-0407.13441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/29/2023] [Accepted: 06/17/2023] [Indexed: 07/12/2023] Open
Abstract
INTRODUCTION To evaluate the association of sensitivity to thyroid hormone with metabolic syndrome (MetS) and its components in a Chinese euthyroid population. METHODS A total of 3573 participants from Pinggu Metabolic Disease Study were analyzed. Serum-free triiodothyronine (FT3), free thyroxine (FT4), thyrotropin (TSH), total adipose tissue (TAT), visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT) area of abdominal, and lumbar skeletal muscle area (SMA) were measured. Central thyroid hormone resistance was calculated by the Thyroid Feedback Quantile-based Index (TFQI) and Chinese-referenced Parametric TFQI (PTFQI), Thyrotroph T4 Resistance Index (TT4RI) and TSH Index (TSHI). Peripheral thyroid hormone resistance was assessed by FT3/FT4 ratio. RESULTS Higher values of TSHI (odds ratio [OR] = 1.167, 95% confidence interval [CI]: 1.079-1.262, p < .001), TT4RI (OR = 1.115, 95% CI: 1.031-1.206, p = .006), TFQI (OR = 1.196, 95% CI: 1.106-1.294, p < .001), PTFQI (OR = 1.194, 95% CI: 1.104-1.292, p < .001), and lower values of FT3/FT4 ratio (OR = 0.914, 95% CI: 0.845-0.990, p = .026) were associated with MetS. Increased levels of TFQI and PTFQI were associated with abdominal obesity, hypertriglyceridemia, and hypertension. Increased levels of TSHI and TT4RI were associated with hypertriglyceridemia, abdominal obesity, low high-density lipoprotein cholesterol. Reduced levels of FT3/FT4 ratio were associated with hyperglycemia, hypertension, and hypertriglyceridemia. The levels of TSHI, TFQI, and PTFQI were negatively related to SMA and positively related to VAT, SAT, and TAT (all p < .05). CONCLUSIONS Reduced thyroid hormone sensitivity was associated with MetS and its components. Impaired thyroid hormone sensitivity might affect the distribution of adipose tissue and muscle.
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Affiliation(s)
- Fang Lv
- Department of Endocrinology and MetabolismPeking University People's HospitalBeijingChina
| | - Xiaoling Cai
- Department of Endocrinology and MetabolismPeking University People's HospitalBeijingChina
| | - Yufeng Li
- Department of EndocrinologyBeijing Pinggu HospitalBeijingChina
| | - Xiuying Zhang
- Department of Endocrinology and MetabolismPeking University People's HospitalBeijingChina
| | - Xianghai Zhou
- Department of Endocrinology and MetabolismPeking University People's HospitalBeijingChina
| | - Xueyao Han
- Department of Endocrinology and MetabolismPeking University People's HospitalBeijingChina
| | - Linong Ji
- Department of Endocrinology and MetabolismPeking University People's HospitalBeijingChina
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Levy SB, Bribiescas RG. Hierarchies in the energy budget: Thyroid hormones and the evolution of human life history patterns. Evol Anthropol 2023; 32:275-292. [PMID: 37584402 DOI: 10.1002/evan.22000] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 06/01/2023] [Accepted: 08/01/2023] [Indexed: 08/17/2023]
Abstract
The evolution of human life history characteristics required dramatic shifts in energy allocation mechanisms compared with our primate ancestors. Thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3), are sensitive to energy balance, and are significant determinants for both tissue-specific and whole-body metabolic rate. Thus, thyroid hormones are in part responsible for setting the body's overall energy budget and likely played an important role in the evolution of human life history patterns. We propose that the dynamics of mammalian T3 production, uptake, and action have evolved so that energy allocation prioritizes the high demands of brain development and functioning, often at the expense of growth and reproduction. This paper explores the role of thyroid hormone dynamics in the evolution of human encephalization, prolonged childhood and adolescence, long lifespans, reproduction, and human aging.
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Affiliation(s)
- Stephanie B Levy
- Department of Anthropology, CUNY Hunter College, New York, New York, USA
- New York Consortium in Evolutionary Primatology, New York, New York, USA
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Zhao X, Sun J, Xin S, Zhang X. Predictive Effects of FT3/FT4 on Diabetic Kidney Disease: An Exploratory Study on Hospitalized Euthyroid Patients with T2DM in China. Biomedicines 2023; 11:2211. [PMID: 37626708 PMCID: PMC10452238 DOI: 10.3390/biomedicines11082211] [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: 06/26/2023] [Revised: 07/29/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
OBJECTIVE This study aims to explore the correlation between the free-triiodothyronine (FT3)-to-free-thyroxine (FT4) ratio (FT3/FT4) and diabetic kidney disease (DKD) in patients with type 2 diabetes mellitus (T2DM). METHODS This study retrospectively analyzed 1729 patients with T2DM hospitalized in the Department of Endocrinology, Peking University International Hospital, from January 2017 to August 2021, including 1075 males and 654 females. In accordance with the FT3/FT4, the patients were divided into three groups. RESULTS (1) The levels of glycosylated hemoglobin (HbA1c), fasting blood glucose (FBG) and postprandial blood glucose (PBG) among the three groups were significantly different, with the low FT3/FT4 group having the highest HbA1c, FBG and PBG among the three groups (F = 39.39, p < 0.01; F = 27.04, p < 0.01; F = 5.76, p = 0.03; respectively). (2) The proportion of DKD is the highest in the low FT3/FT4 group and the lowest in the high FT3/FT4 group (χ2 = 25.83, p < 0.01). (3) Logistic regression showed that low FT3/FT4 were independent risk factors for DKD (OR = 2.36, 95 CI% 1.63, 3.43; p = 0.01). CONCLUSION A decrease in the FT3/FT4 is an independent predictor of DKD occurrence in patients with T2DM.
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Affiliation(s)
| | | | | | - Xiaomei Zhang
- Department of Endocrinology, Peking University International Hospital, Beijing 102206, China; (X.Z.)
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Comparative analysis of thyroid hormone systems in rodents with subterranean lifestyle. Sci Rep 2023; 13:3122. [PMID: 36813840 PMCID: PMC9946999 DOI: 10.1038/s41598-023-30179-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 02/17/2023] [Indexed: 02/24/2023] Open
Abstract
African mole-rats are subterranean rodents inhabiting underground burrows. This habitat entails risks of overheating, hypoxia, and scarce food availability. Consequently, many subterranean species have evolved low basal metabolism and low body temperature, but the regulation of these traits at the molecular level were unknown. Measurements of serum thyroid hormone (TH) concentrations in African mole-rats have revealed a unique TH phenotype, which deviates from the typical mammalian pattern. Since THs are major regulators of metabolic rate and body temperature, we further characterised the TH system of two African mole-rat species, the naked mole-rat (Heterocephalus glaber) and the Ansell's mole-rat (Fukomys anselli) at the molecular level in a comparative approach involving the house mouse (Mus musculus) as a well-studied laboratory model in TH research. Most intriguingly, both mole-rat species had low iodide levels in the thyroid and naked mole-rats showed signs of thyroid gland hyperplasia. However, contrary to expectations, we found several species-specific differences in the TH systems of both mole-rat species, although ultimately resulting in similar serum TH concentrations. These findings indicate a possible convergent adaptation. Thus, our study adds to our knowledge for understanding adaptations to the subterranean habitat.
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Derežanin L, Blažytė A, Dobrynin P, Duchêne DA, Grau JH, Jeon S, Kliver S, Koepfli KP, Meneghini D, Preick M, Tomarovsky A, Totikov A, Fickel J, Förster DW. Multiple types of genomic variation contribute to adaptive traits in the mustelid subfamily Guloninae. Mol Ecol 2022; 31:2898-2919. [PMID: 35334142 DOI: 10.1111/mec.16443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 03/06/2022] [Accepted: 03/14/2022] [Indexed: 11/28/2022]
Abstract
Species of the mustelid subfamily Guloninae inhabit diverse habitats on multiple continents, and occupy a variety of ecological niches. They differ in feeding ecologies, reproductive strategies and morphological adaptations. To identify candidate loci associated with adaptations to their respective environments, we generated a de novo assembly of the tayra (Eira barbara), the earliest diverging species in the subfamily, and compared this with the genomes available for the wolverine (Gulo gulo) and the sable (Martes zibellina). Our comparative genomic analyses included searching for signs of positive selection, examining changes in gene family sizes, as well as searching for species-specific structural variants (SVs). Among candidate loci associated with phenotypic traits, we observed many related to diet, body condition and reproduction. For example, for the tayra, which has an atypical gulonine reproductive strategy of aseasonal breeding, we observe species-specific changes in many pregnancy-related genes. For the wolverine, a circumpolar hypercarnivore that must cope with seasonal food scarcity, we observed many changes in genes associated with diet and body condition. All types of genomic variation examined (single nucleotide polymorphisms, gene family expansions, structural variants) contributed substantially to the identification of candidate loci. This strongly argues for consideration of variation other than single nucleotide polymorphisms in comparative genomics studies aiming to identify loci of adaptive significance.
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Affiliation(s)
- Lorena Derežanin
- Leibniz Institute for Zoo and Wildlife Research (IZW, Alfred Kowalke Straße 17, 10315, Berlin, Germany
| | - Asta Blažytė
- Department of Biomedical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology (UNIST, Ulsan, 44919, Republic of Korea
| | - Pavel Dobrynin
- Computer Technologies Laboratory, ITMO University, 49 Kronverkskiy Pr, 197101, Saint Petersburg, Russia
| | - David A Duchêne
- Center for Evolutionary Hologenomics, The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5, 1353, Copenhagen, Denmark
| | - José Horacio Grau
- amedes Genetics, amedes Medizinische Dienstleistungen GmbH, Jägerstr. 61, 10117, Berlin, Germany
| | - Sungwon Jeon
- Department of Biomedical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology (UNIST, Ulsan, 44919, Republic of Korea.,Clinomics Inc, Ulsan, 44919, Republic of Korea
| | - Sergei Kliver
- Institute of Molecular and Cellular Biology, SB RAS, 8/2 Acad. Lavrentiev Ave, Novosibirsk, 630090, Russia
| | - Klaus-Peter Koepfli
- Computer Technologies Laboratory, ITMO University, 49 Kronverkskiy Pr, 197101, Saint Petersburg, Russia.,Smithsonian-Mason School of Conservation, 1500 Remount Road, Front Royal, VA, 22630, USA.,Smithsonian Conservation Biology Institute, Center for Species Survival, National Zoological Park, 1500 Remount Road, Front Royal, VA, 22630, USA
| | - Dorina Meneghini
- Leibniz Institute for Zoo and Wildlife Research (IZW, Alfred Kowalke Straße 17, 10315, Berlin, Germany
| | - Michaela Preick
- Institute for Biochemistry and Biology, Faculty of Mathematics and Natural Sciences, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, OT, Germany
| | - Andrey Tomarovsky
- Computer Technologies Laboratory, ITMO University, 49 Kronverkskiy Pr, 197101, Saint Petersburg, Russia.,Institute of Molecular and Cellular Biology, SB RAS, 8/2 Acad. Lavrentiev Ave, Novosibirsk, 630090, Russia.,Novosibirsk State University, 1 Pirogova str, Novosibirsk, 630090, Russia
| | - Azamat Totikov
- Computer Technologies Laboratory, ITMO University, 49 Kronverkskiy Pr, 197101, Saint Petersburg, Russia.,Institute of Molecular and Cellular Biology, SB RAS, 8/2 Acad. Lavrentiev Ave, Novosibirsk, 630090, Russia.,Novosibirsk State University, 1 Pirogova str, Novosibirsk, 630090, Russia
| | - Jörns Fickel
- Leibniz Institute for Zoo and Wildlife Research (IZW, Alfred Kowalke Straße 17, 10315, Berlin, Germany.,Institute for Biochemistry and Biology, Faculty of Mathematics and Natural Sciences, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, OT, Germany
| | - Daniel W Förster
- Leibniz Institute for Zoo and Wildlife Research (IZW, Alfred Kowalke Straße 17, 10315, Berlin, Germany
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11
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Zhang H, Yang S, Zhu W, Niu T, Wang Z, An K, Xie Z, Wang P, Huang X, Wang C, Shangguan H, Yuan Y, Wang S. Free Triiodothyronine Levels are Related to Executive Function and Scene Memory in Type 2 Diabetes Mellitus Patients Without Diagnosed Thyroid Diseases. Diabetes Metab Syndr Obes 2022; 15:1041-1050. [PMID: 35411164 PMCID: PMC8994555 DOI: 10.2147/dmso.s355656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/15/2022] [Indexed: 11/23/2022] Open
Abstract
PURPOSE We aim to determine the role of free triiodothyronine (FT3), the main active ingredient of thyroid hormones (THs), in type 2 diabetes mellitus (T2DM) patients with mild cognitive impairment (MCI). PATIENTS AND METHODS A total of 255 T2DM patients without diagnosed thyroid diseases were recruited and divided into MCI group and healthy cognition group. Neuropsychological functions were observed by multidimensional cognitive function scales in including MoCA, Digit Span Test (DST), Verbal Fluency Test (VFT), Clock drawing test (CDT), Trail Making Test (TMT) A and B, Instantaneously Recalled Auditory Verbal Learning Test (AVLT-IR), Delayed Recalled Auditory Verbal Learning Test (AVLT-DR) and Logical Memory Test (LMT). Correlation and logistic regression analyses were performed to explore the association between FT3 and diabetic cognitive dysfunction. RESULTS Compared with 147 normal cognition patients, 108 MCI patients exhibited lower FT3 and higher HOMA-IR. FT3 level was not only positively correlated with MoCA scores, but DST, VFT and LMT, while negatively associated with TMTB. Furthermore, there is a negative association between FT3 and HOMA-IR. Logistic regression showed that decreased FT3 is a risk factor of MCI in T2DM patients. Although FT3 is not the risk factor of MCI after homeostasis model assessment of insulin resistance (HOMA-IR) was entered as an independent variable, lower FT3 is associated with VFT and LMT adjusted by age, education, BMI, DM duration, HBP duration, smoking, HbA1c and HOMA-IR. CONCLUSION Lower FT3 levels may involve in MCI, especially for executive function and scene memory in T2DM patients without diagnosed thyroid diseases.
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Affiliation(s)
- Haoqiang Zhang
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, People’s Republic of China
| | - Shufang Yang
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
- Department of Endocrinology, Taizhou People’s Hospital, Taizhou, People’s Republic of China
| | - Wenwen Zhu
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Tong Niu
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Zheng Wang
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Ke An
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Zuoling Xie
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Pin Wang
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Xi Huang
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Chenchen Wang
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Haiyan Shangguan
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Yang Yuan
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
| | - Shaohua Wang
- Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, People’s Republic of China
- Correspondence: Shaohua Wang; Yang Yuan, Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, No. 87 Dingjiaqiao Road, Nanjing, 210009, People’s Republic of China, Tel +86-25-83262815; +86-13814003661, Fax +86-25-83285132, Email ;
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12
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Choi W, Park JY, Hong AR, Yoon JH, Kim HK, Kang HC. Association between triglyceride-glucose index and thyroid function in euthyroid adults: The Korea National Health and Nutritional Examination Survey 2015. PLoS One 2021; 16:e0254630. [PMID: 34264998 PMCID: PMC8281995 DOI: 10.1371/journal.pone.0254630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/30/2021] [Indexed: 12/05/2022] Open
Abstract
Objectives Low-normal thyroid function is associated with numerous metabolic risk factors including insulin resistance (IR). Triglyceride-glucose (TyG) index is a new surrogate marker of IR calculated by fasting triglyceride and glucose levels. Here, we investigated the association between thyroid function and TyG index in non-diabetic euthyroid adults. Methods This cross-sectional study was based on data from the Korean National Health and Nutritional Examination Survey 2015 including 1482 individuals (741 men and 741 women). Serum thyrotropin (TSH) and free thyroxine (fT4) levels were measured. Results After adjusting for confounders, there was an inverse relationship of TyG index with fT4 in men (β = –0.094, P = 0.009) and a positive relationship of TyG index with TSH in women (β = 0.078, P = 0.018). The lowest fT4 tertile in men (P = 0.001) and the highest TSH tertile in women (P = 0.010) exhibited increased TyG index after adjusting for confounders. The lowest fT4 tertile also showed increased homeostatic model assessment for IR (HOMA-IR) only in men (P = 0.006). Odds ratios (ORs) for the high TyG index, which was defined as the highest TyG quartile decreased in the highest and second highest tertile of fT4 in men (OR = 0.41 and OR = 0.45, respectively; P < 0.001) and increased in highest tertile of TSH in women (OR = 1.81, P = 0.031) after adjusting for confounders. The OR for high HOMA-IR defined as the highest HOMA-IR quartile was also lower in the highest and second highest fT4 tertiles in men (both OR = 0.47; P = 0.003). Conclusions This is the first study to suggest that TyG index is a good surrogate marker of IR in evaluating its relationship with thyroid function.
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Affiliation(s)
- Wonsuk Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Ji Yong Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - A. Ram Hong
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- * E-mail:
| | - Jee Hee Yoon
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hee Kyung Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Ho-Cheol Kang
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
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13
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Mousseaux C, Schwarz C, Garcia H, Mohamadou I, Mesnard L, Luque Y. The Case | A lockdown-related metabolic acidosis. Kidney Int 2021; 99:273-274. [PMID: 33390235 DOI: 10.1016/j.kint.2020.07.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/07/2020] [Accepted: 07/16/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Cyril Mousseaux
- Unité de soins intensifs néphrologiques, AP-HP, Hôpital Tenon, Paris, France.
| | - Chloë Schwarz
- Unité de soins intensifs néphrologiques, AP-HP, Hôpital Tenon, Paris, France
| | - Hugo Garcia
- Unité de soins intensifs néphrologiques, AP-HP, Hôpital Tenon, Paris, France
| | - Inna Mohamadou
- Service d'urologie et de transplantation rénales, AP-HP, Hôpital Pitié Salpêtrière, Paris, France
| | - Laurent Mesnard
- Unité de soins intensifs néphrologiques, AP-HP, Hôpital Tenon, Paris, France
| | - Yosu Luque
- Unité de soins intensifs néphrologiques, AP-HP, Hôpital Tenon, Paris, France
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14
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Little AG. Thyroid hormone regulation of thermal acclimation in ectotherms: Physiological mechanisms and ecoevolutionary implications. Mol Cell Endocrinol 2021; 530:111285. [PMID: 33891994 DOI: 10.1016/j.mce.2021.111285] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 02/07/2021] [Accepted: 04/12/2021] [Indexed: 02/07/2023]
Abstract
The pathways that regulate adaptive thermal plasticity in ectothermic vertebrates have received little attention relative to those in birds and mammals. However, there is increasing evidence that thyroid hormone represents a critical regulator of thermal plasticity in both ectothermic and endothermic vertebrates. In this review, I summarize the evidence for thyroid hormone-mediated thermal compensation responses in ectothermic vertebrates, with specific focus on effects on the whole animal, skeletal muscle, and cardiac muscle. Interestingly, these effects can differ wildly between focal tissues and species. I move on to discuss what the role of thyroid hormone in ectotherm thermal plasticity can reveal about stressor interactions and central vs. peripheral levels of thyroid hormone regulation. Lastly, I focus on the conserved nature of thyroid hormone signaling in animal thermal responses, with specific reference to the ectotherm → endotherm spectrum. I use this framework to highlight research avenues that will further resolve the evolutionary trajectory of thyroid hormone actions across animals. I hope to emphasize what thyroid hormone-mediated cold acclimation in a 3 cm fish can contribute to ongoing debates surrounding the impacts of stressor interactions, the potential costs of plasticity, the evolution of endothermy, and the impacts of global change.
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Affiliation(s)
- A G Little
- Department of Biology, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
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15
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Nikooyeh B, Shariatzadeh N, Rismanchi M, Hollis BW, Neyestani TR. Daily intake of yogurt drink fortified either with vitamin D alone or in combination with added calcium causes a thyroid-independent increase of resting metabolic rate in adults with type 2 diabetes: a randomized double blind clinical trial. Appl Physiol Nutr Metab 2021; 46:1363-1369. [PMID: 34077684 DOI: 10.1139/apnm-2021-0248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We investigated the effect of daily intake of yogurt drink fortified with either vitamin D alone or with added calcium on resting metabolic rate (RMR), thyroid hormones and homeostatic model assessment for insulin resistance (HOMA-IR) in subjects with type 2 diabetes (T2D). A total of 75 adult subjects with T2D were randomly assigned to one of the three groups to receive either D-fortified yogurt drink (DY; 1000 IU vitamin D/d), Ca-D-fortified yogurt drink (CDY; 1000 IU vitamin D plus 500 mg calcium), or plain yogurt drink (PY) for 12 weeks. All assessments were done at the baseline and after the intervention. The concentrations of anti-thyroid peroxidase antibody (anti-TPO-Ab), intact parathyroid hormone (iPTH) and thyroid stimulating hormone (TSH) had significant decline compared with baseline values only in CDY group. The mean RMR increased in both DY and CDY groups (p<0.001 for both). Also, changes of serum concentrations of 25(OH)D (B= 2.96, 95%CI= 1.3- 4.6, p=0.001) and iPTH (B= -2.41, 95%CI= -4.5- -0.31, p=0.025) remained significant predictors of RMR changes even after adjustment for changes of serum concentrations of TSH (B= -18.2, 95%CI= -61.7- 25.2, p=0.406). Daily intake of vitamin D together with calcium at physiological doses has attenuating effect on anti-TPO-Ab and TSH. Also, vitamin D with or without added calcium causes a significant thyroid-independent increase in RMR in euthyroid subjects with T2D. Registered at clinicaltrials.gov as NCT01229891. Novelty: Daily intake of vitamin D with calcium at physiological doses has attenuating effect on anti-TPO-Ab and TSH. Vitamin D with or without added calcium causes a thyroid-independent increase in RMR in euthyroid subjects with T2D.
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Affiliation(s)
- Bahareh Nikooyeh
- National Nutrition and Food Technology Research Institute, 226734, Laboratory of Nutrition Research, Tehran, Tehran, Iran (the Islamic Republic of);
| | - Nastaran Shariatzadeh
- National Nutrition and Food Technology Research Institute, 226734, Laboratory of Nutrition Research, Tehran, Tehran, Iran (the Islamic Republic of);
| | - Marjan Rismanchi
- National Nutrition and Food Technology Research Institute, 226734, Tehran, Tehran, Iran (the Islamic Republic of);
| | - Bruce W Hollis
- Medical University of South Carolina, 2345, Department of Pediatrics, Charleston, United States;
| | - Tirang R Neyestani
- Shahid Beheshti University of Medical Sciences, 556492, Tehran, Iran (the Islamic Republic of), 19839-63113;
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16
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Deal CK, Volkoff H. Response of the thyroid axis and appetite-regulating peptides to fasting and overfeeding in goldfish (Carassius auratus). Mol Cell Endocrinol 2021; 528:111229. [PMID: 33662475 DOI: 10.1016/j.mce.2021.111229] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/14/2022]
Abstract
The thyroid axis is a major regulator of metabolism and energy homeostasis in vertebrates. There is conclusive evidence in mammals for the involvement of the thyroid axis in the regulation of food intake, but in fish, this link is unclear. In order to assess the effects of nutritional status on the thyroid axis in goldfish, Carassius auratus, we examined brain and peripheral transcripts of genes associated with the thyroid axis [thyrotropin-releasing hormone (TRH), thyrotropin-releasing hormone receptors (TRH-R type 1 and 2), thyroid stimulating hormone beta (TSHβ), deiodinase enzymes (DIO2, DIO3) and UDP-glucoronsyltransferase (UGT)] and appetite regulators [neuropeptide Y (NPY), proopiomelanocortin (POMC), agouti-related peptide (AgRP) and cholecystokinin (CCK)] in fasted and overfed fish for 7 and 14 day periods. We show that the thyroid axis responds to overfeeding, with an increase of brain TRH and TSHβ mRNA expression after 14 days, suggesting that overfeeding might activate the thyroid axis. In fasted fish, hepatic DIO3 and UGT transcripts were downregulated from 7 to 14 days, suggesting a time-dependent inhibition of thyroid hormone degradation pathways. Nutritional status had no effect on circulating levels of thyroid hormone. Central appetite-regulating peptides exhibited temporal changes in mRNA expression, with decreased expression of the appetite-inhibiting peptide POMC from 7 to 14 days for both fasted and overfed fish, with no change in central NPY or AgRP, or intestinal CCK transcript expression. Compared to control fish, fasting increased AgRP mRNA expression at both 7 and 14 days, and POMC expression was higher than controls only at 7 days. Our results indicate that nutritional status time-dependently affects the thyroid axis and appetite regulators, although no clear correlation between thyroid physiology and appetite regulators could be established. Our study helps to fill a knowledge gap in current fish endocrinological research on the effects of energy balance on thyroid metabolism and function.
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Affiliation(s)
- Cole K Deal
- Departments of Biology, Memorial University of Newfoundland, St. John's, NL, A1B 3X9, Canada
| | - Helene Volkoff
- Departments of Biology, Memorial University of Newfoundland, St. John's, NL, A1B 3X9, Canada; Departments of Biochemistry, Memorial University of Newfoundland, St. John's, NL, A1B 3X9, Canada.
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Tang L, Li P, Zhou H, Li L. A longitudinal study of thyroid markers during pregnancy and the risk of gestational diabetes mellitus and post-partum glucose metabolism. Diabetes Metab Res Rev 2021; 37:e3441. [PMID: 33486811 PMCID: PMC8243952 DOI: 10.1002/dmrr.3441] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 12/07/2020] [Accepted: 01/02/2021] [Indexed: 12/11/2022]
Abstract
AIMS To determine the relationship between thyroid markers during pregnancy and gestational diabetes mellitus (GDM) or post-partum glucose metabolism. MATERIALS AND METHODS Based on pregnancy 75-g oral glucose tolerance test (OGTT) results, 1467 subjects were grouped into normal glucose tolerance (NGTp; n = 768) and GDM (n = 699) groups. Furthermore, based on post-partum 75-g OGTT results, 286 GDM subjects, screened for glucose metabolism after delivery, were grouped into NGTd (n = 241) and abnormal glucose tolerance (AGT; n = 45) groups. RESULTS Maternal age, family history of diabetes, acanthosis nigricans, previous adverse pregnancy outcomes and caesarean section incidence, and thyroid positive antibody rates were higher in the GDM group than in the NGTp group. In the first trimester, free triiodothyronine (FT3), thyroid peroxidase antibody (TPOAb) and thyroglobulin antibody (TgAb) levels were higher in the GDM group than in the NGTp group. In the second trimester, free thyroxine (FT4) levels were lower and TPOAb and TgAb levels were higher in the GDM group than in the NGTp group. After adjusting for confounding factors, FT3, TPOAb and TgAb (first trimester), and FT4, TPOAb and TgAb (second trimester) were risk factors for GDM. TPOAb and TgAb levels were higher in the AGT group than in the NGTd group and were potential predictors of abnormal post-partum glucose tolerance. CONCLUSIONS GDM risk significantly increased with increased FT3 (first trimester), TPOAb and TgAb (first and second trimesters) or with decreased FT4 (second trimester). Presence of thyroid antibodies predicted post-partum glucose abnormalities in subjects with GDM.
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Affiliation(s)
- Lei Tang
- Department of EndocrinologyShengjing Hospital of China Medical UniversityShenyangLiaoningChina
| | - Ping Li
- Department of EndocrinologyShengjing Hospital of China Medical UniversityShenyangLiaoningChina
| | - Hua Zhou
- Department of NephrologyShengjing Hospital of China Medical UniversityShenyangLiaoningChina
| | - Ling Li
- Department of EndocrinologyShengjing Hospital of China Medical UniversityShenyangLiaoningChina
- Liaoning Province Key Laboratory of Endocrine DiseasesShenyangLiaoningChina
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The Unity of Redox and Structural Remodeling of Brown Adipose Tissue in Hypothyroidism. Antioxidants (Basel) 2021; 10:antiox10040591. [PMID: 33921249 PMCID: PMC8068806 DOI: 10.3390/antiox10040591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/30/2021] [Accepted: 04/07/2021] [Indexed: 12/20/2022] Open
Abstract
Brown adipose tissue (BAT) is important for maintaining whole-body metabolic and energy homeostasis. However, the effects of hypothyroidism, one of the most common diseases worldwide, which increases the risk of several metabolic disorders, on BAT redox and metabolic homeostasis remain mostly unknown. We aimed to investigate the dynamics of protein expression, enzyme activity, and localization of antioxidant defense (AD) enzymes in rat interscapular BAT upon induction of hypothyroidism by antithyroid drug methimazole for 7, 15, and 21 days. Our results showed an increased protein expression of CuZn- and Mn-superoxide dismutase, catalase, glutamyl-cysteine ligase, thioredoxin, total glutathione content, and activity of catalase and thioredoxin reductase in hypothyroid rats, compared to euthyroid control. Concomitant with the increase in AD, newly established nuclear, mitochondrial, and peroxisomal localization of AD enzymes was found. Hypothyroidism also potentiated associations between mitochondria, peroxisomes, and lipid bodies, creating specific structural-functional units. Moreover, hypothyroidism induced protein expression and nuclear translocation of a master regulator of redox-metabolic homeostasis, nuclear factor erythroid 2-related factor 2 (Nrf2), and an increased amount of 4-hydroxynonenal (4-HNE) protein adducts. The results indicate that spatiotemporal overlap in the remodeling of AD is orchestrated by Nrf2, implicating the role of 4-HNE in this process and suggesting the potential mechanism of redox-structural remodeling during BAT adaptation in hypothyroidism.
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Gu L, Yang J, Gong Y, Ma Y, Yan S, Huang Y, Wang Y, Peng Y. Lower free thyroid hormone levels are associated with high blood glucose and insulin resistance; these normalize with metabolic improvement of type 2 diabetes. J Diabetes 2021; 13:318-329. [PMID: 32981234 DOI: 10.1111/1753-0407.13118] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/03/2020] [Accepted: 09/23/2020] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE This study aimed to explore the relationship of thyroid function and glucose metabolism and to investigate the changes in thyroid function after National Metabolic Management Center (MMC) management in type 2 diabetic mellitus (T2DM). METHODS A total of 2000 euthyroid participants from MMC in Shanghai General Hospital and a community physical examination were recruited. They were categorized into four groups: normal glucose tolerance (NGT, n = 132), prediabetes (N = 147), DM well-controlled (T2DM with glycosylated hemoglobin [HbA1c] ≤ 7%, n = 505), and DM uncontrolled (T2DM with HbA1c > 7%, n = 1216). The parameters were compared among the groups and their changes before and after MMC follow-up in DM uncontrolled group were observed. RESULTS Free triiodothyronine (FT3) and free thyroxine (FT4) levels varied significantly among groups. FT3 and FT4 levels negatively correlated with HbA1c level (P < 0.05), and positively correlated with the estimated glucose disposal rate (eGDR) (P < 0.05). Following MMC management, blood glucose and insulin resistance in the DM uncontrolled group were dramatically improved (P < 0.001). Meanwhile, FT3 was elevated compared to the baseline (from 4.51 ± 0.78 pmol/L to 4.68 ± 0.87 pmol/L, P < 0.05), and reverse triiodothyronine (r-T3) decreased from 1.03 ± 0.24 nmol/L to 0.92 ± 0.25 nmol/L (P < 0.001). Thyroid-stimulating hormone significantly decreased as well (P < 0.001). CONCLUSIONS Decreased free thyroid hormone levels in normal range were associated with high glucose and insulin resistance. After MMC management, improvement of blood glucose and insulin resistance were accompanied by the restoration of low-normal thyroid function.
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Affiliation(s)
- Liping Gu
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiaying Yang
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yujia Gong
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuhang Ma
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuai Yan
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yunhong Huang
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yufan Wang
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongde Peng
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Ha J, Lee J, Lim DJ, Lee JM, Chang SA, Kang MI, Kim MH. Association of serum free thyroxine and glucose homeostasis: Korea National Health and Nutrition Examination Survey. Korean J Intern Med 2021; 36:S170-S179. [PMID: 32506867 PMCID: PMC8009147 DOI: 10.3904/kjim.2019.160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/07/2019] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND/AIMS Thyroid hormones are involved in wide range of glucose metabolism functions. Overt thyroid dysfunctions are related to altered glucose homeostasis. However, it is not conclusive as to whether subtle changes in thyroid hormones within normal ranges can induce alterations in glucose homeostasis. The aim of this study was to evaluate the association between thyroid hormone and glucose homeostasis parameters in subjects without overt thyroid dysfunction based on nationwide population data. METHODS In the Sixth Korea National Health and Nutrition Examination Survey 2015 (n = 7,380), data were collected from subjects with insulin and thyroid function measurements who were older than 19-years-old. After the exclusion of 5,837 subjects, a total of 1,543 patients were included in the analysis. Subjects were categorized into the quartiles of the free thyroxine (FT4). Fasting glucose, insulin, homeostatic model assessment of insulin resistance and hemoglobin A1c (HbA1c) levels were considered to be glucose homeostasis parameters. RESULTS Subjects with the highest FT4 quartile showed significantly lower fasting insulin and HbA1c levels. A significant inverse correlation FT4 and HbA1c levels was observed (β = -0.261, p = 0.025). In the logistic regression analysis, the highest quartile of FT4 was demonstrated to lower the risk of HbA1c to a greater degree than the median by approximately 40%, after adjusting for confounders, compared to the lowest quartile (p = 0.028). CONCLUSION We demonstrated subjects with a lower FT4 quartile exhibited high risk of HbA1c levels above the median value in a representative Korean population. Subjects with the lowest FT4 quartile should be cautiously managed in terms of altered glucose homeostasis.
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Affiliation(s)
- Jeonghoon Ha
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeongmin Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Dong-Jun Lim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jung-Min Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang-Ah Chang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Moo-Il Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Min-Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Correspondence to Min-Hee Kim, M.D. Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 1021 Tongil-ro, Eunpyeong-gu, Seoul 03312, Korea Tel: +82-2-961-4537 Fax: +82-2-968-7250 E-mail:
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21
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Dong T, Zhao F, Yuan K, Zhu X, Wang N, Xia F, Lu Y, Huang Z. Association Between Serum Thyroid-Stimulating Hormone Levels and Salivary Microbiome Shifts. Front Cell Infect Microbiol 2021; 11:603291. [PMID: 33718264 PMCID: PMC7952758 DOI: 10.3389/fcimb.2021.603291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 01/11/2021] [Indexed: 01/10/2023] Open
Abstract
High serum thyroid-stimulating hormone (TSH) levels are linked to many metabolic disorders, but the effects of TSH levels on the oral microbiota are still largely unknown. This study aimed to explore the association between the salivary microbiome in adults and serum TSH levels. Saliva and fasting blood samples were obtained from a health census conducted in Southeast China. All participants were divided according to serum TSH levels. The microbial genetic profiles and changes were acquired by 16S rDNA sequencing and bioinformatics analysis. Relevant anthropometric and biochemical measurements such as insulin resistance, blood lipids, and body composition were evaluated with laboratory tests and physical examinations. The salivary microbiome in individuals with higher TSH level showed significantly higher taxa diversity. Principal coordinates analysis and partial least squares discriminant analysis showed distinct clustering in the Abnormal and Normal Groups (Adonis, P=0.0320). Granulicatella was identified as a discriminative genus for comparison of the two groups. Fasting serum insulin, Homeostatic Model Assessment for Insulin Resistance, and hemoglobin A1 were elevated in the Abnormal Group (P<0.05), showing the presence of insulin resistance in individuals with abnormal higher serum TSH levels. Distance-based redundancy analysis revealed the association of this distinctive difference with salivary microbiome. In conclusion, shifts in microbial profile were observed in the saliva of individuals with different serum TSH levels, and insulin resistance may play an important role in the biochemical and microbial alteration.
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Affiliation(s)
- Ting Dong
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Fen Zhao
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Keyong Yuan
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Xiaohan Zhu
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Ningjian Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fangzhen Xia
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingli Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhengwei Huang
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
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22
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Liu B, Wang Z, Fu J, Guan H, Lyu Z, Wang W. Sensitivity to Thyroid Hormones and Risk of Prediabetes: A Cross-Sectional Study. Front Endocrinol (Lausanne) 2021; 12:657114. [PMID: 34017311 PMCID: PMC8129566 DOI: 10.3389/fendo.2021.657114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/14/2021] [Indexed: 01/12/2023] Open
Abstract
CONTEXT Thyroid hormone influences glucose homeostasis through central and peripheral regulations. To date, the link between sensitivity to thyroid hormones and prediabetes remains unknown. We aimed to investigate the association between thyroid hormones sensitivity and risk of prediabetes in both general and euthyroid populations. METHODS Participants with serum free triiodothyronine (FT3), free thyroxine (FT4), and thyrotropin (TSH) measurements from the health checkup programs of the First Hospital of China Medical University were collected. We measured the parameters representing central and peripheral sensitivities to thyroid hormones (central sensitivity, assessed by calculating Thyroid Feedback Quantile-based Index (TFQI), TSH Index (TSHI), and Thyrotroph Thyroxine Resistance Index (TT4RI); peripheral sensitivity, evaluated by FT3/FT4 ratio). Associations between thyroid hormones sensitivities and risk of prediabetes were assessed with logistic regression. RESULTS A total of 4378 participants (mean age ± SD, 49 ± 11 years) were included, with 1457 (33%) subjects had prediabetes. The risk of prediabetes was negatively associated with levels of TSHI (odds ratio [OR] 0.91; 95% confidence interval [CI], 0.85-0.97), TT4RI (OR 0.91; 95% CI, 0.84-0.99) and Parametric TFQI (PTFQI) (OR 0.89; 95% CI, 0.83-0.95) among all subjects. The association remained significant in euthyroid subjects and euthyroid subjects with negative thyroid autoimmunity. Higher FT3/FT4 ratio was associated with a mild increased risk of prediabetes (95% CI 1.09; 1.02-1.16). Compared with subjects in the lowest quartile of PTFQI, those in the highest quartile had lower risk of prediabetes (0.70; 95% CI, 0.58-0.84). CONCLUSIONS Decreased central sensitivity to thyroid hormones is associated with lower risk of prediabetes. This demonstrates the complex interaction between thyroid system and glucose metabolism. Future studies are warranted to confirm our findings and underlying mechanisms.
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Affiliation(s)
- Bingyang Liu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zixiao Wang
- Department of Physical Examination Center, The First Hospital of China Medical University, Shenyang, China
| | - Jinrong Fu
- Department of Endocrinology and Metabolism, The First Hospital of China Medical University, Shenyang, China
| | - Haixia Guan
- Department of Endocrinology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhaohui Lyu
- Department of Endocrinology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
- *Correspondence: Wei Wang, ; Zhaohui Lyu,
| | - Wei Wang
- Department of Physical Examination Center, The First Hospital of China Medical University, Shenyang, China
- *Correspondence: Wei Wang, ; Zhaohui Lyu,
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23
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Fröhlich E, Wahl R. Physiological Role and Use of Thyroid Hormone Metabolites - Potential Utility in COVID-19 Patients. Front Endocrinol (Lausanne) 2021; 12:587518. [PMID: 33981284 PMCID: PMC8109250 DOI: 10.3389/fendo.2021.587518] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 03/31/2021] [Indexed: 01/09/2023] Open
Abstract
Thyroxine and triiodothyronine (T3) are classical thyroid hormones and with relatively well-understood actions. In contrast, the physiological role of thyroid hormone metabolites, also circulating in the blood, is less well characterized. These molecules, namely, reverse triiodothyronine, 3,5-diiodothyronine, 3-iodothyronamine, tetraiodoacetic acid and triiodoacetic acid, mediate both agonistic (thyromimetic) and antagonistic actions additional to the effects of the classical thyroid hormones. Here, we provide an overview of the main factors influencing thyroid hormone action, and then go on to describe the main effects of the metabolites and their potential use in medicine. One section addresses thyroid hormone levels in corona virus disease 19 (COVID-19). It appears that i) the more potently-acting molecules T3 and triiodoacetic acid have shorter half-lives than the less potent antagonists 3-iodothyronamine and tetraiodoacetic acid; ii) reverse T3 and 3,5-diiodothyronine may serve as indicators for metabolic dysregulation and disease, and iii) Nanotetrac may be a promising candidate for treating cancer, and resmetirom and VK2809 for steatohepatitis. Further, the use of L-T3 in the treatment of severely ill COVID-19 patients is critically discussed.
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Affiliation(s)
- Eleonore Fröhlich
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, University Hospital Tuebingen, Tuebingen, Germany
- Center for Medical Research, Medical University Graz, Graz, Austria
| | - Richard Wahl
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, University Hospital Tuebingen, Tuebingen, Germany
- *Correspondence: Richard Wahl,
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24
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Kong X, Wang J, Gao G, Tan M, Ding B, Li H, Ma J. Association between Free Thyroxine Levels and Diabetic Retinopathy in Euthyroid Patients with Type 2 Diabetes Mellitus. Endocr Res 2020; 45:111-118. [PMID: 31773995 DOI: 10.1080/07435800.2019.1690504] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Background: This study aimed to evaluate the association between thyroid parameters and diabetic retinopathy (DR) in euthyroid patients with type 2 diabetes mellitus (T2DM).Materials and Methods: In this cross-sectional study, a total of 911 euthyroid patients with T2DM (539 men and 372 women; mean age, 60.81 ± 12.93 years) were enrolled. Clinical factors were assessed and free triiodothyronine (FT3), free thyroxine (FT4) and thyroid-stimulating hormone (TSH) levels were measured. DR was diagnosed using fundus fluorescein angiography.Results: Compared with patients without DR (n = 718), patients with DR (n = 193) exhibited lower FT3 (4.40 ± 0.58 vs. 4.50 ± 0.51 pmol/L; P = .019) and FT4 (14.86 ± 2.09 vs. 15.91 ± 2.18 pmol/L; P < .001) and higher TSH (1.86 [1.22, 2.66] vs. 1.58 [1.14, 2.34] µIU/mL; P = .015) levels. After adjustment for potential DR risk factors, patients in the highest tertile of plasma FT4 levels had a 0.332-fold likelihood of developing DR compared with those in the lowest tertile of plasma FT4 levels (Ptrend < 0.001). The prevalence of DR showed a significantly decreasing trend across the three tertiles based on FT4 levels (31.35%, 19.08% and 13.16%; Ptrend < 0.001). Similar results were obtained for the presence of proliferative DR.Conclusion: These findings suggest that low-normal FT4 levels are associated with the prevalence of DR in euthyroid patients with T2DM.
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Affiliation(s)
- Xiaocen Kong
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jian Wang
- Department of intensive care unit, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Gu Gao
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Mingjuan Tan
- Department of Clinical Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Bo Ding
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Huiqin Li
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jianhua Ma
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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25
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Akasheh RT, Kroeger CM, Trepanowski JF, Gabel K, Hoddy KK, Kalam F, Cienfuegos S, Varady KA. Weight loss efficacy of alternate day fasting versus daily calorie restriction in subjects with subclinical hypothyroidism: a secondary analysis. Appl Physiol Nutr Metab 2019; 45:340-343. [PMID: 31751150 DOI: 10.1139/apnm-2019-0554] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study compared the weight loss efficacy of alternate-day fasting (ADF) versus daily calorie restriction (CR) in adults with subclinical hypothyroidism. After 6 months, body weight decreased (P < 0.001) similarly by ADF (-7% ± 1%) and CR (-8% ± 2%). Insulin resistance decreased (P < 0.05) more by ADF versus CR. Free thyroxin and thyroid-stimulating hormone remained unchanged. Thus, ADF and CR produce similar weight loss in this population, without affecting thyroid hormone levels. Novelty Intermittent fasting and daily restriction produce similar reductions in body weight in subjects with subclinical hypothyroidism.
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Affiliation(s)
- Rand T Akasheh
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA.,Department of Nutrition and Dietetics, American University of Madaba, Madaba, Jordan
| | - Cynthia M Kroeger
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA.,Charles Perkins Center, The University of Sydney, Sydney, NSW, Australia
| | - John F Trepanowski
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Kelsey Gabel
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Kristin K Hoddy
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Faiza Kalam
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Sofia Cienfuegos
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Krista A Varady
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA
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26
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Kineman RD, del Rio-Moreno M, Sarmento-Cabral A. 40 YEARS of IGF1: Understanding the tissue-specific roles of IGF1/IGF1R in regulating metabolism using the Cre/loxP system. J Mol Endocrinol 2018; 61:T187-T198. [PMID: 29743295 PMCID: PMC7721256 DOI: 10.1530/jme-18-0076] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 05/09/2018] [Indexed: 12/13/2022]
Abstract
It is clear that insulin-like growth factor-1 (IGF1) is important in supporting growth and regulating metabolism. The IGF1 found in the circulation is primarily produced by the liver hepatocytes, but healthy mature hepatocytes do not express appreciable levels of the IGF1 receptor (IGF1R). Therefore, the metabolic actions of IGF1 are thought to be mediated via extra-hepatocyte actions. Given the structural and functional homology between IGF1/IGF1R and insulin receptor (INSR) signaling, and the fact that IGF1, IGF1R and INSR are expressed in most tissues of the body, it is difficult to separate out the tissue-specific contributions of IGF1/IGF1R in maintaining whole body metabolic function. To circumvent this problem, over the last 20 years, investigators have taken advantage of the Cre/loxP system to manipulate IGF1/IGF1R in a tissue-dependent, and more recently, an age-dependent fashion. These studies have revealed that IGF1/IGF1R can alter extra-hepatocyte function to regulate hormonal inputs to the liver and/or alter tissue-specific carbohydrate and lipid metabolism to alter nutrient flux to liver, where these actions are not mutually exclusive, but serve to integrate the function of all tissues to support the metabolic needs of the organism.
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Affiliation(s)
- Rhonda D Kineman
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago,1819 W Polk St. M/C 646 Chicago, IL, 60612
- Research and Development Division, Jesse Brown VA Medical Center, Suite 6215, MP 191, 820 S Damen Ave. Chicago, IL 60612
- Corresponding author: Rhonda D Kineman, . University of Illinois at Chicago, Medicine, 1819 W. Polk St., MC 640, Chicago, IL, USA 60612
| | - Mercedes del Rio-Moreno
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago,1819 W Polk St. M/C 646 Chicago, IL, 60612
| | - André Sarmento-Cabral
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago,1819 W Polk St. M/C 646 Chicago, IL, 60612
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27
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Martinez B, Khudyakov J, Rutherford K, Crocker DE, Gemmell N, Ortiz RM. Adipose transcriptome analysis provides novel insights into molecular regulation of prolonged fasting in northern elephant seal pups. Physiol Genomics 2018; 50:495-503. [PMID: 29625017 DOI: 10.1152/physiolgenomics.00002.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The physiological and cellular adaptations to extreme fasting in northern elephant seals ( Mirounga angustirostris, NES) are remarkable and may help to elucidate endocrine mechanisms that regulate lipid metabolism and energy homeostasis in mammals. Recent studies have highlighted the importance of thyroid hormones in the maintenance of a lipid-based metabolism during prolonged fasting in weaned NES pups. To identify additional molecular regulators of fasting, we used a transcriptomics approach to examine changes in global gene expression profiles before and after 6-8 wk of fasting in weaned NES pups. We produced a de novo assembly and identified 98 unique protein-coding genes that were differentially expressed between early and late fasting. Most of the downregulated genes were associated with lipid, carbohydrate, and protein metabolism. A number of downregulated genes were also associated with maintenance of the extracellular matrix, consistent with tissue remodeling during weight loss and the multifunctional nature of blubber tissue, which plays both metabolic and structural roles in marine mammals. Using this data set, we predict potential mechanisms by which NES pups sustain metabolism and regulate adipose stores throughout the fast, and provide a valuable resource for additional studies of extreme metabolic adaptations in mammals.
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Affiliation(s)
- Bridget Martinez
- Department of Molecular & Cellular Biology, University of California, Merced, California.,Department of Medicine, St. George's University School of Medicine, St. George, Grenada.,Department of Anatomy, University of Otago , Dunedin , New Zealand.,Department of Physics and Engineering, Los Alamos National Laboratory , Los Alamos, New Mexico
| | - Jane Khudyakov
- Department of Biological Sciences, University of the Pacific , Stockton, California
| | - Kim Rutherford
- Department of Anatomy, University of Otago , Dunedin , New Zealand
| | - Daniel E Crocker
- Department of Biology, Sonoma State University , Rohnert Park, California
| | - Neil Gemmell
- Department of Anatomy, University of Otago , Dunedin , New Zealand
| | - Rudy M Ortiz
- Department of Molecular & Cellular Biology, University of California, Merced, California
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