OBJECTIVE: Research on determinants of well-being in patients on thyroid hormone replacement therapy is warranted, as persistent fatigue-related complaints are common in this population. In this study, we evaluated the impact of different states of hypothyroidism on fatigue and fatigue-related symptoms. Furthermore, the relationship between fatigue and the TSH receptor (TSHR)-Asp727Glu polymorphism, a common genetic variant of the TSHR, was analyzed. DESIGN: A cross-sectional study was performed in 278 patients (140 patients treated for differentiated thyroid carcinoma (DTC) and 138 with autoimmune hypothyroidism (AIH)) genotyped for the TSHR-Asp727Glu polymorphism. METHODS: The multidimensional fatigue inventory (MFI-20) was used to assess fatigue, with higher MFI-20 scores indicating more fatigue-related complaints. MFI-20 scores were related to disease status and Asp727Glu polymorphism status. RESULTS: AIH patients scored significantly higher than DTC patients on all five MFI-20 subscales (P<0.001), independent of clinical and thyroid hormone parameters. The frequency of the TSHR-Glu727 allele was 7.2%. Heterozygous DTC patients had more favorable MFI-20 scores than wild-type DTC patients on four of five subscales. The modest effect of the TSHR-Asp727Glu polymorphism on fatigue was found in DTC patients only. CONCLUSIONS: AIH patients had significantly higher levels of fatigue compared with DTC patients, which could not be attributed to clinical or thyroid hormone parameters. The modest effect of the TSHR-Asp727Glu polymorphism on fatigue in DTC patients should be confirmed in other cohorts.
OBJECTIVE: Research on determinants of well-being in patients on thyroid hormone replacement therapy is warranted, as persistent fatigue-related complaints are common in this population. In this study, we evaluated the impact of different states of hypothyroidism on fatigue and fatigue-related symptoms. Furthermore, the relationship between fatigue and the TSH receptor (TSHR)-Asp727Glu polymorphism, a common genetic variant of the TSHR, was analyzed. DESIGN: A cross-sectional study was performed in 278 patients (140 patients treated for differentiated thyroid carcinoma (DTC) and 138 with autoimmune hypothyroidism (AIH)) genotyped for the TSHR-Asp727Glu polymorphism. METHODS: The multidimensional fatigue inventory (MFI-20) was used to assess fatigue, with higher MFI-20 scores indicating more fatigue-related complaints. MFI-20 scores were related to disease status and Asp727Glu polymorphism status. RESULTS: AIH patients scored significantly higher than DTCpatients on all five MFI-20 subscales (P<0.001), independent of clinical and thyroid hormone parameters. The frequency of the TSHR-Glu727 allele was 7.2%. Heterozygous DTCpatients had more favorable MFI-20 scores than wild-type DTCpatients on four of five subscales. The modest effect of the TSHR-Asp727Glu polymorphism on fatigue was found in DTCpatients only. CONCLUSIONS: AIH patients had significantly higher levels of fatigue compared with DTCpatients, which could not be attributed to clinical or thyroid hormone parameters. The modest effect of the TSHR-Asp727Glu polymorphism on fatigue in DTCpatients should be confirmed in other cohorts.
Authors: David T Hughes; David Reyes-Gastelum; Kevin J Kovatch; Ann S Hamilton; Kevin C Ward; Megan R Haymart Journal: Surgery Date: 2019-09-30 Impact factor: 3.982
Authors: Jacqueline Jonklaas; Antonio C Bianco; Anne R Cappola; Francesco S Celi; Eric Fliers; Heike Heuer; Elizabeth A McAninch; Lars C Moeller; Birte Nygaard; Anna M Sawka; Torquil Watt; Colin M Dayan Journal: Eur Thyroid J Date: 2021-02-16
Authors: Jacqueline Jonklaas; Antonio C Bianco; Anne R Cappola; Francesco S Celi; Eric Fliers; Heike Heuer; Elizabeth A McAninch; Lars C Moeller; Birte Nygaard; Anna M Sawka; Torquil Watt; Colin M Dayan Journal: Thyroid Date: 2021-02 Impact factor: 6.568
Authors: A Sansone; S Kliesch; M Dugas; R Sandhowe-Klaverkamp; A M Isidori; S Schlatt; M Zitzmann Journal: J Endocrinol Invest Date: 2021-04-03 Impact factor: 4.256