Objective:To evaluate thyroid dysfunction prevalence and its consequences in high-risk pregnant women and their children.Methods:In this retrospective cohort study,data from high-risk pregnant women who were referred ...Objective:To evaluate thyroid dysfunction prevalence and its consequences in high-risk pregnant women and their children.Methods:In this retrospective cohort study,data from high-risk pregnant women who were referred to a governmental referral hospital in Qom,Iran from March to August 2022 were collected.The thyroid disorders were determined according to the 2017 American Thyroid Association guidelines.The predictors of a mother's hypothyroidism and its fetal and maternal consequences were assessed.Independent t-test,Chi-square test,and logistic regression were used for bivariate and multivariate analysis.Results:293 women were included.The prevalence of hypothyroidism and hyperthyroidism based on the thyroid stimulating hormone classification was 32.5%and 2.0%.The prevalence of subclinical and overt hypothyroidism was 6.1%and 4.1%,and the prevalence of subclinical and overt hyperthyroidism was 2.4%and 1.4%,respectively.Family history of thyroid disorders was the most important predictor of hypothyroidism during pregnancy(OR=2.6,95%CI=1.0-6.6,P=0.002),while preterm delivery(OR=2.2,95%CI=1.3-6.8,P=0.220)and elevated neonate thyroid stimulating hormone(OR=1.2,95%CI=1.1-1.3,P=0.041)were the most important consequence of hypothyroidism.Conclusions:Hypothyroidism is a highly prevalent thyroid disorder in high-risk pregnant women.Thyroid function screening should be performed in all pregnant women to increase the detection of subclinical and overt hypothyroidism during pregnancy.展开更多
Thyroid hormones are totally involved in the regulation of body weight, lipid metabolism, and insulin resistance. Therefore it is anticipated that thyroid hormones may have a role in the pathogenesis of non alcoholic ...Thyroid hormones are totally involved in the regulation of body weight, lipid metabolism, and insulin resistance. Therefore it is anticipated that thyroid hormones may have a role in the pathogenesis of non alcoholic fatty liver disease(NAFLD) and non alcoholic steatohepatitis(NASH). In this study, we reviewed the current literature on the association between thyroid dysfunction and NAFLD/NASH. A search for English language medical literature reporting an association between thyroid dysfunction and NAFLD/NASH in humans was conducted across PubMed, ISI Web of Science, and Scopus in August, 2013. Out of 140 studies initially identified through the search, 11 relevant articles were included in the final review. Thyroid dysfunctions in the form of overt or subclinical hypothyroidism are prevalent among patients with NAFLD/NASH. Hypothyroidism appears to be an independent risk factor for NAFLD/NASH in some studies; however, other newly published studies failed to find such anassociation. The results of the studies on the role of thyroid abnormalities in NAFLD/NASH are inconsistent, and further research is recommended to determine the relationship between hypothyroidism and NAFLD/NASH and the underlying mechanisms.展开更多
Iodinated contrast media(ICM)has the potential to cause thyroid dysfunction in some patients.However,it is unclear whether this relationship exists in children.We conducted a systematic review and meta-analysis aim to...Iodinated contrast media(ICM)has the potential to cause thyroid dysfunction in some patients.However,it is unclear whether this relationship exists in children.We conducted a systematic review and meta-analysis aim to obtain a general overview of the relationship between ICM exposure and the risk of thyroid dysfunction in children.Methods:Computer search of Web of Science,EMbase,PubMed,Cochrane Library,collection of relevant literature on ICM and thyroid dysfunction in children,the search period was from the establishment of the database to July 2021.Meta-analysis was performed using Stata 14.0 software.Results:A total of 8 literatures with 3497 children.The incidence of hypothyroidism in children with ICM exposure was 0.05(95%CI:0.05,0.12),P<0.0001.Subgroup analysis showed that the incidence of hypothyroidism in ICM exposed children in the European region was 0.21(95%CI:0.13,0.30),P<0.0001,a statistically significant difference.Conclusion:The current evidence shows that children exposed to ICM are at risk for hypothyroidism,with a higher risk in neonates,especially children with congenital heart disease.展开更多
Background:Mushrooms are a good source of many nutrients which are potentially beneficial for chronic diseases.We speculated that due to its abundant nutrients edible mushrooms might have a beneficial effect on the pr...Background:Mushrooms are a good source of many nutrients which are potentially beneficial for chronic diseases.We speculated that due to its abundant nutrients edible mushrooms might have a beneficial effect on the prevention of subclinical thyroid dysfunction(SCTD).Therefore,we designed a large-scale cohort study to examine whether mushrooms consumption is a protective factor for SCTD in adults.Methods:This prospective cohort study investigated 6631 participants(mean age:(45.0±10.2)years;55.1%men).Edible mushrooms consumption was measured at baseline using a validated food frequency questionnaire.SCTD was defined as abnormal serum thyroid-stimulating hormone levels and normal free thyroxine.Cox proportional hazards regression models were used to examine the association of edible mushrooms consumption with incident SCTD.Results:During follow-up period,a total of 262 new cases of SCTD were identified,the incidence rate of subclinical hypothyroidism was 8.9/1000 person-years and subclinical hyperthyroidism was 7.2/1000 person-years.After adjusting potential confounding factors,the multivariable hazard ratios(95%confidence intervals)for subclinical hypothyroidism were 1.00(reference)for almost never,0.53(0.29,0.97)for 1-3 times/week and 0.30(0.10,0.87)for≥4 times/week(P for trend=0.02).It also showed edible mushrooms consumption was inversely associated with subclinical hypothyroidism in obese individuals but not non-obese individuals,the final hazard ratios(95%confidence intervals)were 0.14(0.03,0.73)(P for trend<0.01).Conclusions:This population-based prospective cohort study has firstly demonstrated that higher edible mushrooms consumption was significantly associated with lower incidence of subclinical hypothyroidism among general adult population,especially in obese individuals.展开更多
<strong>Background:</strong><span style="white-space:normal;font-family:;" "=""> Various thyroid abnormalities have been reported during heart failure (HF). The present ...<strong>Background:</strong><span style="white-space:normal;font-family:;" "=""> Various thyroid abnormalities have been reported during heart failure (HF). The present study aimed to evaluate the burden, type, and associated factors of thyroid disorders in Cameroonian patients with heart failure. <b>Materials and Methods:</b> We conducted a cross-sectional study from January to May 2020, involving volunteer adults followed for heart failure at the Yaoundé Central Hospital. Those receiving treatment that could cause thyroid dysfunction were excluded. Thyroid hormone levels (TSH, free T3, and free T4) were measured by enzyme-linked immunosorbent assay. <b>Results: </b>A total of 63 patients (30 women;47.6%) were included. The median age was 65 (IQR: 56 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 70) years. The main etiology of heart failure was hypertension</span><span style="white-space:normal;font-family:;" "=""> (52.4%) followed by valvular heart disease (14.3%). Thyroid dysfunction was seen in 38 (60.3%, [95% CI: 47.2 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 72.4]) patients, of which 30 (79%) had hypothyroidism and 8 (21%) had hyperthyroidism. The most frequent thyroid dysfunction was Low T3 syndrome in 27% (95% CI: 16.6 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 39.7) of the study population followed sub-clinical hypothyroidism in 19.1% (95% CI: 10.3 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 30.9) of patients. Patients with HF and reduced ejection fraction (HFrEF) were more likely to have hypothyroidism than those with preserved ejection fraction (OR: 3.5, [95% CI: 1.2 - 9.9], p = 0.016). Also, patients with more than one hospital admission in the past 12 months were more likely to have hypothyroidism (OR: 5.3, [95% CI: 1.3 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 21.5], p = 0.013). <b>Conclusion: </b>The burden of thyroid dysfunction was high in this group of patients with HF. These were mainly low T3 syndrome and sub-clinical hypothyroidism. These were associated with heart failure with reduced ejection fraction and those with more than one hospitalization within the past 12-months</span><span style="white-space:normal;font-family:;" "="">.</span>展开更多
The number of newborns born with diseases is increasing recently.Thyroid hormones(THs)are closely related to the growth and development of the newborn in the mother's womb and to the carriage of related diseases a...The number of newborns born with diseases is increasing recently.Thyroid hormones(THs)are closely related to the growth and development of the newborn in the mother's womb and to the carriage of related diseases after birth.Environmental endocrine-disrupting compounds(EDCs)have been proven to harm THs in newborns.Phthalates(PAEs),a typical class of EDCs,are commonly used in toys,childcare materials,and food contact materials,which have been closely connected with neonatal thyroid dysfunction and thyroid-related diseases.As restrictions on PAEs becomemore stringent in neonatal field,numerous PAE alternatives are emerging.Associations between exposure to PAEs and their alternatives and dysfunctions in THs have been explored.Hence,we summarized the body burdens and regional characteristics of PAEs and their alternatives in neonatal urine,cord blood,and meconium.Subsequently,the influences of PAEs and their alternatives on thyroid dysfunction,prematurity,low birth weight,fetal growth restriction,respiratory dysfunction,immune disorders,neurological disorders,and reproductive disorders in newborns were evaluated.Furthermore,we scrutinized the effects of PAEs and their alternatives on the neonatal thyroid from signaling,substance transport,and hormone production to explore the underlying mechanisms of action on neonatal thyroid and thyroid-related disorders.As the declining global trends of healthy newborns and the potential impacts of PAEs and their alternatives on thyroid function,a more comprehensive study is needed to discuss their effects on newborns and their underlying mechanisms.This review facilitates attention to the effects of PAEs and their alternatives on thyroid and thyroid-related disorders in newborns.展开更多
The increasing longevity of patients with transfusion-dependent homozygous beta-thalassemia has brought endocrine complications to the forefront of longterm care.While iron overload remains a central mechanism,additio...The increasing longevity of patients with transfusion-dependent homozygous beta-thalassemia has brought endocrine complications to the forefront of longterm care.While iron overload remains a central mechanism,additional contributors such as hypothalamic dysfunction,neurosecretory disturbances,and chronic inflammation have been identified.Endocrine disorders including hypothyroidism,adrenal insufficiency,hypogonadotropic hypogonadism,hypoparathyroidism,osteoporosis,and growth axis impairment-are prevalent and often underdiagnosed.Diagnostic challenges include normal hormone levels in early stages,necessitating the use of dynamic endocrine testing and pituitary magnetic resonance imaging to detect subclinical dysfunction.Risk is modulated by sex,age,and chelation adherence.Early identification and proactive,multidisciplinary management of endocrine sequelae are essential in reducing morbidity and maintaining functional independence in this aging patient population.展开更多
BACKGROUND Thyroid dysfunction during pregnancy is an important disease affecting the health of mothers and children.Two-dimensional(2D)shear wave elastography(SWE)is the newest ultrasonic elastography technology and ...BACKGROUND Thyroid dysfunction during pregnancy is an important disease affecting the health of mothers and children.Two-dimensional(2D)shear wave elastography(SWE)is the newest ultrasonic elastography technology and its value in differentiating benign and malignant thyroid nodules has been widely recognized.However,the value of 2D SWE in evaluating and predicting thyroid function is unclear.AIM To explore prospectively the value of 2D SWE quantitative analysis for the evaluation of thyroid function in the first trimester.METHODS We included outpatients of reproductive age in the Department of Gynecology in Shanghai Changning Maternity and Infant Health Hospital between March 2023 and March 2024 who had conventional ultrasound examination and 2D SWE of the thyroid.They also underwent transvaginal ultrasound examination to confirm early intrauterine pregnancy and serum thyroid stimulating hormone(TSH)level was measured.The patients were divided into pregnant with normal TSH,pregnant with abnormal TSH,and nonpregnant with normal TSH.Conventional ultrasound and 2D SWE results were compared among the three groups.RESULTS A total of 108 patients were included in the study;57 in the pregnant with normal TSH group,18 in the pregnant with abnormal TSH group and 33 were in the nonpregnant with normal TSH group.Thyroid size,thyroid echotexture,2D SWE quantitative parameters including mean elasticity in the region of interest and maximal elasticity in the region of interest showed no significant differences among the three groups(P>0.05).CONCLUSION Conventional ultrasound and 2D SWE features could not reflect the level of serum TSH.展开更多
Background The prevalence and the spectrum of thyroid dysfunction in the mainland of China are not adequately understood. We performed a population-based study to determine the prevalence of major thyroid dysfunctions...Background The prevalence and the spectrum of thyroid dysfunction in the mainland of China are not adequately understood. We performed a population-based study to determine the prevalence of major thyroid dysfunctions including overt and subclinical hyper- and hypothyroidism in a stable cohort. Methods All active and retired employees aged 20 years and older （11 067） of Sinopec Zhenhai Refining ＆ Chemical Company in Ningbo participated in the cross-sectional survey with a questionnaire and blood samples. Results A total of 10 405 individuals attended for screening. Using biochemical definitions 95.5% were euthyroid. The prevalence of former diagnosed hyperthyroidism was 1.1% in females and 0.4% in males, hypothyroidism 1.7% and 0.3%, and thyroid surgery 1.2% and 0.3%, respectively. In both sex the prevalence increased with age. Twenty-four percent of individuals with thyroid surgery or medications had abnormal thyroid-stimulating hormone （TSH） levels. In individuals without a history of thyroid disease, the prevalence of pathological TSH values in females and males were TSH 〉10 mU/L 0.60% and 0.29%; TSH 4.8-9.9 mU/L 5.71% and 2.25%; TSH 〈0.3 mU/L 0.87% and 0.41%, respectively. Overt hyper- and hypothyroidism were uncommon （0.2%, 0.3%, respectively）. The prevalence of subclinical hyper- and hypothyroidism was 0.4% and 3.4%, respectively. Subclinical hypothyroidism was more common in females （male 2.4% vs. female 5.8%, P 〈0.001） and with increasing age （P 〈0.001）. Conclusions The prevalence of thyroid dysfunction is 4.5% in the cohort. Among individuals with thyroid medications or surgery, only 75.7% were within the normal range of TSH. These results indicate that thyroid dysfunction is common in Chinese adults.展开更多
Background:Sudden sensorineural hearing loss(SSHL)refers to the sudden occurrence of unexplained sensorineural hearing loss.The present study showed that different systemic diseases had different influence on the occu...Background:Sudden sensorineural hearing loss(SSHL)refers to the sudden occurrence of unexplained sensorineural hearing loss.The present study showed that different systemic diseases had different influence on the occurrence and hearing outcome of SSHL.Thyroid hormone is one of the important factors for the development of fetal ear and auditory function.However,the distribution of thyroid dysfunction in SSHL patients and the effect of thyroid dysfunction on the occurrence and hearing outcome of SSHL has not been studied.Methods:In this study,a retrospective analysis had been done in 676 patients with SSHL.We had described the distribution of thyroid function in patients with SSHL in detail,and by the statistical method,analyzed the relationship between the hearing outcome and thyroid dysfunction,respectively.Results:In all patients,24.41%(165/676)had abnormal thyroid function testing results.The onset age of SSHL in FT3 abnormal group(including low and high group)was younger than that in normal FT3 group.Recovery group had more patients with lower-than-normal T3 level as compared to non-recovery patients.Significant associations between T3 levels and hearing outcome were observed in the subgroup with longer time elapse between symptom onset and treatment(≥14 d).Conclusion:The incidence of thyroid dysfunction in SSHL is significantly higher than in the general population.There was obvious relationship between T3 and FT3 item of thyroid dysfunction and the onset time and hearing outcome of SSHL,which indicated that T3 or FT3 indicator may be one of the affecting factors for the SSHL.Early screening and diagnosis of thyroid dysfunction,especial T3 level,may help to evaluate the prognosis in SSHL patients.展开更多
Background:More than 75 million procedures with intravascular iodine-based contrast media(ICM)are performed worldwide every year,and some patients undergoing these procedures do not have normal thyroid function.The lo...Background:More than 75 million procedures with intravascular iodine-based contrast media(ICM)are performed worldwide every year,and some patients undergoing these procedures do not have normal thyroid function.The long-term effects of ICM in patients with mild thyroid dysfunction(TD)are unclear.Methods:This prospective cohort study was conducted in China.Patients with stable angina pectoris with total triiodothyronine(TT3)reduction,normal thyroid-stimulating hormone,and reverse triiodothyronine(rT3)were enrolled and divided into high-dose(≥100 mL ICM)and low-dose groups(<100 mL ICM).We dynamically investigated the trends in thyroid function,rT3,and thyroid antibodies one year after ICM exposure.Results:A total of 154 patients completed 6 months of follow-up and 149 completed 1 year of follow-up.Thyroglobulin antibody(TGAB)levels were elevated in 41(26.6%)patients before ICM exposure,11(7.1%)of whom also had elevated thyroid peroxidase antibody levels.Transient subclinical TD occurred 6 months after ICM exposure;75.5%(34/45)of post-operative TD occurred in the high-dose group.One patient developed severe hypothyroidism with myxedema,requiring drug intervention 1 year after ICM exposure.The level of rT3 showed no statistically significant changes during post-operative follow-up(P=0.848).The TGAB level decreased at 6th month(P<0.001),but increased at 1 year after ICM exposure(P=0.002).Conclusions:Patients with T3 reduction are at a risk of transient subclinical TD and hypothyroidism after a single large dose of ICM.Follow-up of this population at 9-12 months after ICM exposure is warranted.展开更多
Objective This study explored whether thyroglobulin and thyroid disease prevalence rates were higher in pregnant Chinese women with a median urinary iodine concentration of 100-149μg/L,compared with those with a medi...Objective This study explored whether thyroglobulin and thyroid disease prevalence rates were higher in pregnant Chinese women with a median urinary iodine concentration of 100-149μg/L,compared with those with a median urinary iodine concentration of 150-249μg/L maintained through sustainable universal salt iodization.Methods This was a cross-sectional study in which 812 healthy pregnant women were enrolled to collect samples of their household edible salt,urine,and blood during their routine antenatal care in the18 counties in Fujian Province,China.The levels of salt iodine concentration,urinary iodine concentration(UIC),free triiodothyronine(FT3),free thyroid hormone(FT4),thyroid-stimulating hormone(TSH),thyroglobulin(Tg),thyroid peroxidase antibody and thyroglobulin antibody were assessed during the routine antenatal care visits.Results The median UIC(m UIC)in pregnant women was 130.8μg/L(interquartile range=91.5-198.1μg/L)in the counties with an m UIC of 100-149μg/L(Group I),and 172.0μg/L(interquartile range=123.5-244.4μg/L)in the counties with an m UIC of 150-249μg/L(Group II).Goiter prevalence and thyroid nodule detection rates showed no difference between Group I and Group II(P>0.05).Except for FT4 values,the TSH,FT4,FT3,Tg and Tg values>40(μg/L)and the thyroid diseases prevalence rate(TDR)showed no significant differences between Group I and Group II(P>0.05),whether or not iodine supplementation measures were taken.Conclusion Compared with an m UIC of 150-249μg/L,not only there was no difference in thyroid morphology,but also the Tg value,rate of Tg values>40μg/L,and TDR were not higher in pregnant women in the counties with an m UIC of 100-149μg/L achieved through sustainable universal salt iodization in Fujian Province,China.展开更多
The improvement in accuracy of in vitro diagnosis has always been the focus of early screening of thyroid dysfunction.We constructed a microfluidic chip based on a polystyrene polymer substrate.Total triiodothyronine(...The improvement in accuracy of in vitro diagnosis has always been the focus of early screening of thyroid dysfunction.We constructed a microfluidic chip based on a polystyrene polymer substrate.Total triiodothyronine(TT3),total thyroxine(TT4),free triiodothyronine(FT3),free thyroxine(FT4),and thyrotropin(TSH) in human whole blood samples were analysed by fluorescence immunoassay to evaluate thyroid function.The results indicate that the microfluidic chip shows a good linear relationship in the detection of TT3,TT4,FT3,FT4,and TS H standards,and the correlation coefficient(r) is not less than0.9900.In addition,the chip also has strong anti-interference(RSD%≤5%) and good repeatability(CV≤8%),and its inter-batch differences are small(CV ≤15%).The results of practical application in clinical thyroid function mea surement indicated its high accuracy(r≥0.9900).It provides a new method for the determination of thyroid function and lays a foundation for subsequent clinical application.展开更多
To evaluate the characteristics and synthesis activity of osteoblasts extracted from the calvaria of offspring of rats exposed to maternal hyperthyroidism.Twelve adult Wistar rats were divided into two groups,one cont...To evaluate the characteristics and synthesis activity of osteoblasts extracted from the calvaria of offspring of rats exposed to maternal hyperthyroidism.Twelve adult Wistar rats were divided into two groups,one control and one treated with daily administration of L-thyroxine by an orogastric tube(50μg/animal/day)during pregnancy.Three days after delivery and confirmation of the mothers’hyperthyroidism,the offspring were euthanized for the extraction of osteoblasts from the calvaria.At 7,14,and 21 days,proliferation activity was assessed using MTT assay,while alkaline phosphatase(ALP)activity was assessed by the BCIP/NBT method.At 21 days,the total area of the mineralized matrix stained by von Kossa was evaluated by morphometry.The expression of gene transcripts for Runx2,Bmp2,Fgfr1,collagen type 1(Col1),osteocalcin(Oc),and osteopontin(Op)were evaluated by real-time RT-PCR.Means were compared using the Student’s t-test.FA activity was significantly higher at 14 and 21 days in cultures of osteoblasts extracted from offspring exposed to maternal hyperthyroidism,while MTT conversion was significantly lower at 21 days in this group.Osteoblast cultures of neonates exposed to maternal hyperthyroidism also showed a larger total area of mineralized matrix and greater expression of gene transcripts for Oc and Op.Maternal hyperthyroidism increases the activity of matrix synthesis,alkaline phosphatase activity,and expression of gene transcripts for osteocalcin and osteopontin in the osteoblasts,extracted from the calvaria of the offspring,which may be one of the mechanisms of premature fusion of cranial sutures.展开更多
Background Visfatin, a visceral fat-derived adipocytokine, plays a significant physiological function in lipid metabolism. However, the precise function of visfatin and its regulation by thyroid hormones are still unk...Background Visfatin, a visceral fat-derived adipocytokine, plays a significant physiological function in lipid metabolism. However, the precise function of visfatin and its regulation by thyroid hormones are still unknown. This study observed the plasma visfatin concentrations in subjects with hyperthyroidism and hypothyroidism in vivo, and investigated the possible reaulation mechanism between visfatin and tri-iodothvronine （T3） in vitro as a further interpretation.展开更多
基金funded financially by the Vice Chancellor for Research and Technology Development at Qom University of Medical Sciences.
文摘Objective:To evaluate thyroid dysfunction prevalence and its consequences in high-risk pregnant women and their children.Methods:In this retrospective cohort study,data from high-risk pregnant women who were referred to a governmental referral hospital in Qom,Iran from March to August 2022 were collected.The thyroid disorders were determined according to the 2017 American Thyroid Association guidelines.The predictors of a mother's hypothyroidism and its fetal and maternal consequences were assessed.Independent t-test,Chi-square test,and logistic regression were used for bivariate and multivariate analysis.Results:293 women were included.The prevalence of hypothyroidism and hyperthyroidism based on the thyroid stimulating hormone classification was 32.5%and 2.0%.The prevalence of subclinical and overt hypothyroidism was 6.1%and 4.1%,and the prevalence of subclinical and overt hyperthyroidism was 2.4%and 1.4%,respectively.Family history of thyroid disorders was the most important predictor of hypothyroidism during pregnancy(OR=2.6,95%CI=1.0-6.6,P=0.002),while preterm delivery(OR=2.2,95%CI=1.3-6.8,P=0.220)and elevated neonate thyroid stimulating hormone(OR=1.2,95%CI=1.1-1.3,P=0.041)were the most important consequence of hypothyroidism.Conclusions:Hypothyroidism is a highly prevalent thyroid disorder in high-risk pregnant women.Thyroid function screening should be performed in all pregnant women to increase the detection of subclinical and overt hypothyroidism during pregnancy.
文摘Thyroid hormones are totally involved in the regulation of body weight, lipid metabolism, and insulin resistance. Therefore it is anticipated that thyroid hormones may have a role in the pathogenesis of non alcoholic fatty liver disease(NAFLD) and non alcoholic steatohepatitis(NASH). In this study, we reviewed the current literature on the association between thyroid dysfunction and NAFLD/NASH. A search for English language medical literature reporting an association between thyroid dysfunction and NAFLD/NASH in humans was conducted across PubMed, ISI Web of Science, and Scopus in August, 2013. Out of 140 studies initially identified through the search, 11 relevant articles were included in the final review. Thyroid dysfunctions in the form of overt or subclinical hypothyroidism are prevalent among patients with NAFLD/NASH. Hypothyroidism appears to be an independent risk factor for NAFLD/NASH in some studies; however, other newly published studies failed to find such anassociation. The results of the studies on the role of thyroid abnormalities in NAFLD/NASH are inconsistent, and further research is recommended to determine the relationship between hypothyroidism and NAFLD/NASH and the underlying mechanisms.
基金This study supported by the Chongqing Technology Innovation and Application Development Project(No.cstc2019jscx-msxmX0242)Training program of talent innovation ability of Army Medical Center of PLA,NO.2019CXHLC014。
文摘Iodinated contrast media(ICM)has the potential to cause thyroid dysfunction in some patients.However,it is unclear whether this relationship exists in children.We conducted a systematic review and meta-analysis aim to obtain a general overview of the relationship between ICM exposure and the risk of thyroid dysfunction in children.Methods:Computer search of Web of Science,EMbase,PubMed,Cochrane Library,collection of relevant literature on ICM and thyroid dysfunction in children,the search period was from the establishment of the database to July 2021.Meta-analysis was performed using Stata 14.0 software.Results:A total of 8 literatures with 3497 children.The incidence of hypothyroidism in children with ICM exposure was 0.05(95%CI:0.05,0.12),P<0.0001.Subgroup analysis showed that the incidence of hypothyroidism in ICM exposed children in the European region was 0.21(95%CI:0.13,0.30),P<0.0001,a statistically significant difference.Conclusion:The current evidence shows that children exposed to ICM are at risk for hypothyroidism,with a higher risk in neonates,especially children with congenital heart disease.
基金supported by grants from the National Natural Science Foundation of China (81941024)Tianjin Major Public Health Science and Technology Project (21ZXGWSY00090)+2 种基金National Health Commission of China (SPSYYC 2020015)Food Science and Technology Foundation of Chinese Institute of FoodScience and Technology (2019-12)2014 and 2016 Chinese NutritionSociety (CNS) Nutrition Research Foundation -DSM Research Fund(2016-046, 2014-071 and 2016-023), China
文摘Background:Mushrooms are a good source of many nutrients which are potentially beneficial for chronic diseases.We speculated that due to its abundant nutrients edible mushrooms might have a beneficial effect on the prevention of subclinical thyroid dysfunction(SCTD).Therefore,we designed a large-scale cohort study to examine whether mushrooms consumption is a protective factor for SCTD in adults.Methods:This prospective cohort study investigated 6631 participants(mean age:(45.0±10.2)years;55.1%men).Edible mushrooms consumption was measured at baseline using a validated food frequency questionnaire.SCTD was defined as abnormal serum thyroid-stimulating hormone levels and normal free thyroxine.Cox proportional hazards regression models were used to examine the association of edible mushrooms consumption with incident SCTD.Results:During follow-up period,a total of 262 new cases of SCTD were identified,the incidence rate of subclinical hypothyroidism was 8.9/1000 person-years and subclinical hyperthyroidism was 7.2/1000 person-years.After adjusting potential confounding factors,the multivariable hazard ratios(95%confidence intervals)for subclinical hypothyroidism were 1.00(reference)for almost never,0.53(0.29,0.97)for 1-3 times/week and 0.30(0.10,0.87)for≥4 times/week(P for trend=0.02).It also showed edible mushrooms consumption was inversely associated with subclinical hypothyroidism in obese individuals but not non-obese individuals,the final hazard ratios(95%confidence intervals)were 0.14(0.03,0.73)(P for trend<0.01).Conclusions:This population-based prospective cohort study has firstly demonstrated that higher edible mushrooms consumption was significantly associated with lower incidence of subclinical hypothyroidism among general adult population,especially in obese individuals.
文摘<strong>Background:</strong><span style="white-space:normal;font-family:;" "=""> Various thyroid abnormalities have been reported during heart failure (HF). The present study aimed to evaluate the burden, type, and associated factors of thyroid disorders in Cameroonian patients with heart failure. <b>Materials and Methods:</b> We conducted a cross-sectional study from January to May 2020, involving volunteer adults followed for heart failure at the Yaoundé Central Hospital. Those receiving treatment that could cause thyroid dysfunction were excluded. Thyroid hormone levels (TSH, free T3, and free T4) were measured by enzyme-linked immunosorbent assay. <b>Results: </b>A total of 63 patients (30 women;47.6%) were included. The median age was 65 (IQR: 56 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 70) years. The main etiology of heart failure was hypertension</span><span style="white-space:normal;font-family:;" "=""> (52.4%) followed by valvular heart disease (14.3%). Thyroid dysfunction was seen in 38 (60.3%, [95% CI: 47.2 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 72.4]) patients, of which 30 (79%) had hypothyroidism and 8 (21%) had hyperthyroidism. The most frequent thyroid dysfunction was Low T3 syndrome in 27% (95% CI: 16.6 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 39.7) of the study population followed sub-clinical hypothyroidism in 19.1% (95% CI: 10.3 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 30.9) of patients. Patients with HF and reduced ejection fraction (HFrEF) were more likely to have hypothyroidism than those with preserved ejection fraction (OR: 3.5, [95% CI: 1.2 - 9.9], p = 0.016). Also, patients with more than one hospital admission in the past 12 months were more likely to have hypothyroidism (OR: 5.3, [95% CI: 1.3 </span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "=""> 21.5], p = 0.013). <b>Conclusion: </b>The burden of thyroid dysfunction was high in this group of patients with HF. These were mainly low T3 syndrome and sub-clinical hypothyroidism. These were associated with heart failure with reduced ejection fraction and those with more than one hospitalization within the past 12-months</span><span style="white-space:normal;font-family:;" "="">.</span>
基金supported by the National Natural Science Foundation of China(No.22225605)the National Key Research and Development Program of China(No.2023YFC3706600)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB0750200).
文摘The number of newborns born with diseases is increasing recently.Thyroid hormones(THs)are closely related to the growth and development of the newborn in the mother's womb and to the carriage of related diseases after birth.Environmental endocrine-disrupting compounds(EDCs)have been proven to harm THs in newborns.Phthalates(PAEs),a typical class of EDCs,are commonly used in toys,childcare materials,and food contact materials,which have been closely connected with neonatal thyroid dysfunction and thyroid-related diseases.As restrictions on PAEs becomemore stringent in neonatal field,numerous PAE alternatives are emerging.Associations between exposure to PAEs and their alternatives and dysfunctions in THs have been explored.Hence,we summarized the body burdens and regional characteristics of PAEs and their alternatives in neonatal urine,cord blood,and meconium.Subsequently,the influences of PAEs and their alternatives on thyroid dysfunction,prematurity,low birth weight,fetal growth restriction,respiratory dysfunction,immune disorders,neurological disorders,and reproductive disorders in newborns were evaluated.Furthermore,we scrutinized the effects of PAEs and their alternatives on the neonatal thyroid from signaling,substance transport,and hormone production to explore the underlying mechanisms of action on neonatal thyroid and thyroid-related disorders.As the declining global trends of healthy newborns and the potential impacts of PAEs and their alternatives on thyroid function,a more comprehensive study is needed to discuss their effects on newborns and their underlying mechanisms.This review facilitates attention to the effects of PAEs and their alternatives on thyroid and thyroid-related disorders in newborns.
文摘The increasing longevity of patients with transfusion-dependent homozygous beta-thalassemia has brought endocrine complications to the forefront of longterm care.While iron overload remains a central mechanism,additional contributors such as hypothalamic dysfunction,neurosecretory disturbances,and chronic inflammation have been identified.Endocrine disorders including hypothyroidism,adrenal insufficiency,hypogonadotropic hypogonadism,hypoparathyroidism,osteoporosis,and growth axis impairment-are prevalent and often underdiagnosed.Diagnostic challenges include normal hormone levels in early stages,necessitating the use of dynamic endocrine testing and pituitary magnetic resonance imaging to detect subclinical dysfunction.Risk is modulated by sex,age,and chelation adherence.Early identification and proactive,multidisciplinary management of endocrine sequelae are essential in reducing morbidity and maintaining functional independence in this aging patient population.
基金Supported by the Natural Science Foundation of Shanghai,No.22ZR1458200Medical Ph.D Innovative Talent Base Project of Changning District,No.RCJD2021B09+1 种基金Key Specialty of Changning District,No.20231004Shanghai Changning Maternity and Infant Health Hospital Start-Up Project,No.2020Y-14.
文摘BACKGROUND Thyroid dysfunction during pregnancy is an important disease affecting the health of mothers and children.Two-dimensional(2D)shear wave elastography(SWE)is the newest ultrasonic elastography technology and its value in differentiating benign and malignant thyroid nodules has been widely recognized.However,the value of 2D SWE in evaluating and predicting thyroid function is unclear.AIM To explore prospectively the value of 2D SWE quantitative analysis for the evaluation of thyroid function in the first trimester.METHODS We included outpatients of reproductive age in the Department of Gynecology in Shanghai Changning Maternity and Infant Health Hospital between March 2023 and March 2024 who had conventional ultrasound examination and 2D SWE of the thyroid.They also underwent transvaginal ultrasound examination to confirm early intrauterine pregnancy and serum thyroid stimulating hormone(TSH)level was measured.The patients were divided into pregnant with normal TSH,pregnant with abnormal TSH,and nonpregnant with normal TSH.Conventional ultrasound and 2D SWE results were compared among the three groups.RESULTS A total of 108 patients were included in the study;57 in the pregnant with normal TSH group,18 in the pregnant with abnormal TSH group and 33 were in the nonpregnant with normal TSH group.Thyroid size,thyroid echotexture,2D SWE quantitative parameters including mean elasticity in the region of interest and maximal elasticity in the region of interest showed no significant differences among the three groups(P>0.05).CONCLUSION Conventional ultrasound and 2D SWE features could not reflect the level of serum TSH.
文摘Background The prevalence and the spectrum of thyroid dysfunction in the mainland of China are not adequately understood. We performed a population-based study to determine the prevalence of major thyroid dysfunctions including overt and subclinical hyper- and hypothyroidism in a stable cohort. Methods All active and retired employees aged 20 years and older （11 067） of Sinopec Zhenhai Refining ＆ Chemical Company in Ningbo participated in the cross-sectional survey with a questionnaire and blood samples. Results A total of 10 405 individuals attended for screening. Using biochemical definitions 95.5% were euthyroid. The prevalence of former diagnosed hyperthyroidism was 1.1% in females and 0.4% in males, hypothyroidism 1.7% and 0.3%, and thyroid surgery 1.2% and 0.3%, respectively. In both sex the prevalence increased with age. Twenty-four percent of individuals with thyroid surgery or medications had abnormal thyroid-stimulating hormone （TSH） levels. In individuals without a history of thyroid disease, the prevalence of pathological TSH values in females and males were TSH 〉10 mU/L 0.60% and 0.29%; TSH 4.8-9.9 mU/L 5.71% and 2.25%; TSH 〈0.3 mU/L 0.87% and 0.41%, respectively. Overt hyper- and hypothyroidism were uncommon （0.2%, 0.3%, respectively）. The prevalence of subclinical hyper- and hypothyroidism was 0.4% and 3.4%, respectively. Subclinical hypothyroidism was more common in females （male 2.4% vs. female 5.8%, P 〈0.001） and with increasing age （P 〈0.001）. Conclusions The prevalence of thyroid dysfunction is 4.5% in the cohort. Among individuals with thyroid medications or surgery, only 75.7% were within the normal range of TSH. These results indicate that thyroid dysfunction is common in Chinese adults.
基金This work was supported by National Natural Science Foundation of China,China(81530032,81500794 and 81370021)Military Medical Youth Project of PLA General Hospital,China(QNC19051)+2 种基金National Key Basic Research Program of China,China(2014CB943001)China Postdoctoral Science Foundation,China(2017M613326)Key Research and Development Project of Hainan Province,China(ZDYF2017076).
文摘Background:Sudden sensorineural hearing loss(SSHL)refers to the sudden occurrence of unexplained sensorineural hearing loss.The present study showed that different systemic diseases had different influence on the occurrence and hearing outcome of SSHL.Thyroid hormone is one of the important factors for the development of fetal ear and auditory function.However,the distribution of thyroid dysfunction in SSHL patients and the effect of thyroid dysfunction on the occurrence and hearing outcome of SSHL has not been studied.Methods:In this study,a retrospective analysis had been done in 676 patients with SSHL.We had described the distribution of thyroid function in patients with SSHL in detail,and by the statistical method,analyzed the relationship between the hearing outcome and thyroid dysfunction,respectively.Results:In all patients,24.41%(165/676)had abnormal thyroid function testing results.The onset age of SSHL in FT3 abnormal group(including low and high group)was younger than that in normal FT3 group.Recovery group had more patients with lower-than-normal T3 level as compared to non-recovery patients.Significant associations between T3 levels and hearing outcome were observed in the subgroup with longer time elapse between symptom onset and treatment(≥14 d).Conclusion:The incidence of thyroid dysfunction in SSHL is significantly higher than in the general population.There was obvious relationship between T3 and FT3 item of thyroid dysfunction and the onset time and hearing outcome of SSHL,which indicated that T3 or FT3 indicator may be one of the affecting factors for the SSHL.Early screening and diagnosis of thyroid dysfunction,especial T3 level,may help to evaluate the prognosis in SSHL patients.
基金supported by grants from the Hospital Level Project of Tianjin Chest Hospital in 2018(No.2018XKC08)funded by the Tianjin Key Medical Discipline(Specialty)Construction Project.
文摘Background:More than 75 million procedures with intravascular iodine-based contrast media(ICM)are performed worldwide every year,and some patients undergoing these procedures do not have normal thyroid function.The long-term effects of ICM in patients with mild thyroid dysfunction(TD)are unclear.Methods:This prospective cohort study was conducted in China.Patients with stable angina pectoris with total triiodothyronine(TT3)reduction,normal thyroid-stimulating hormone,and reverse triiodothyronine(rT3)were enrolled and divided into high-dose(≥100 mL ICM)and low-dose groups(<100 mL ICM).We dynamically investigated the trends in thyroid function,rT3,and thyroid antibodies one year after ICM exposure.Results:A total of 154 patients completed 6 months of follow-up and 149 completed 1 year of follow-up.Thyroglobulin antibody(TGAB)levels were elevated in 41(26.6%)patients before ICM exposure,11(7.1%)of whom also had elevated thyroid peroxidase antibody levels.Transient subclinical TD occurred 6 months after ICM exposure;75.5%(34/45)of post-operative TD occurred in the high-dose group.One patient developed severe hypothyroidism with myxedema,requiring drug intervention 1 year after ICM exposure.The level of rT3 showed no statistically significant changes during post-operative follow-up(P=0.848).The TGAB level decreased at 6th month(P<0.001),but increased at 1 year after ICM exposure(P=0.002).Conclusions:Patients with T3 reduction are at a risk of transient subclinical TD and hypothyroidism after a single large dose of ICM.Follow-up of this population at 9-12 months after ICM exposure is warranted.
基金sponsored by the Fujian Provincial Health Technology Project[2020CXA020]Fujian Provincial Natural Science Funding[2020J01093]Construction of Fujian Provincial Scientific and Technological Innovation Platform[2019Y2001]
文摘Objective This study explored whether thyroglobulin and thyroid disease prevalence rates were higher in pregnant Chinese women with a median urinary iodine concentration of 100-149μg/L,compared with those with a median urinary iodine concentration of 150-249μg/L maintained through sustainable universal salt iodization.Methods This was a cross-sectional study in which 812 healthy pregnant women were enrolled to collect samples of their household edible salt,urine,and blood during their routine antenatal care in the18 counties in Fujian Province,China.The levels of salt iodine concentration,urinary iodine concentration(UIC),free triiodothyronine(FT3),free thyroid hormone(FT4),thyroid-stimulating hormone(TSH),thyroglobulin(Tg),thyroid peroxidase antibody and thyroglobulin antibody were assessed during the routine antenatal care visits.Results The median UIC(m UIC)in pregnant women was 130.8μg/L(interquartile range=91.5-198.1μg/L)in the counties with an m UIC of 100-149μg/L(Group I),and 172.0μg/L(interquartile range=123.5-244.4μg/L)in the counties with an m UIC of 150-249μg/L(Group II).Goiter prevalence and thyroid nodule detection rates showed no difference between Group I and Group II(P>0.05).Except for FT4 values,the TSH,FT4,FT3,Tg and Tg values>40(μg/L)and the thyroid diseases prevalence rate(TDR)showed no significant differences between Group I and Group II(P>0.05),whether or not iodine supplementation measures were taken.Conclusion Compared with an m UIC of 150-249μg/L,not only there was no difference in thyroid morphology,but also the Tg value,rate of Tg values>40μg/L,and TDR were not higher in pregnant women in the counties with an m UIC of 100-149μg/L achieved through sustainable universal salt iodization in Fujian Province,China.
文摘The improvement in accuracy of in vitro diagnosis has always been the focus of early screening of thyroid dysfunction.We constructed a microfluidic chip based on a polystyrene polymer substrate.Total triiodothyronine(TT3),total thyroxine(TT4),free triiodothyronine(FT3),free thyroxine(FT4),and thyrotropin(TSH) in human whole blood samples were analysed by fluorescence immunoassay to evaluate thyroid function.The results indicate that the microfluidic chip shows a good linear relationship in the detection of TT3,TT4,FT3,FT4,and TS H standards,and the correlation coefficient(r) is not less than0.9900.In addition,the chip also has strong anti-interference(RSD%≤5%) and good repeatability(CV≤8%),and its inter-batch differences are small(CV ≤15%).The results of practical application in clinical thyroid function mea surement indicated its high accuracy(r≥0.9900).It provides a new method for the determination of thyroid function and lays a foundation for subsequent clinical application.
基金supported by grants from the Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq)Fundação de Amparo a Pesquisa de Minas Gerais(Fapemig)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior(Capes).
文摘To evaluate the characteristics and synthesis activity of osteoblasts extracted from the calvaria of offspring of rats exposed to maternal hyperthyroidism.Twelve adult Wistar rats were divided into two groups,one control and one treated with daily administration of L-thyroxine by an orogastric tube(50μg/animal/day)during pregnancy.Three days after delivery and confirmation of the mothers’hyperthyroidism,the offspring were euthanized for the extraction of osteoblasts from the calvaria.At 7,14,and 21 days,proliferation activity was assessed using MTT assay,while alkaline phosphatase(ALP)activity was assessed by the BCIP/NBT method.At 21 days,the total area of the mineralized matrix stained by von Kossa was evaluated by morphometry.The expression of gene transcripts for Runx2,Bmp2,Fgfr1,collagen type 1(Col1),osteocalcin(Oc),and osteopontin(Op)were evaluated by real-time RT-PCR.Means were compared using the Student’s t-test.FA activity was significantly higher at 14 and 21 days in cultures of osteoblasts extracted from offspring exposed to maternal hyperthyroidism,while MTT conversion was significantly lower at 21 days in this group.Osteoblast cultures of neonates exposed to maternal hyperthyroidism also showed a larger total area of mineralized matrix and greater expression of gene transcripts for Oc and Op.Maternal hyperthyroidism increases the activity of matrix synthesis,alkaline phosphatase activity,and expression of gene transcripts for osteocalcin and osteopontin in the osteoblasts,extracted from the calvaria of the offspring,which may be one of the mechanisms of premature fusion of cranial sutures.
基金This study was partially supported by grants from the National Natural Science Foundation of China （No. 30270636 and 30671015）.
文摘Background Visfatin, a visceral fat-derived adipocytokine, plays a significant physiological function in lipid metabolism. However, the precise function of visfatin and its regulation by thyroid hormones are still unknown. This study observed the plasma visfatin concentrations in subjects with hyperthyroidism and hypothyroidism in vivo, and investigated the possible reaulation mechanism between visfatin and tri-iodothvronine （T3） in vitro as a further interpretation.
