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Yehia Abdelzaher W, A Abdel-Gaber S, Atef Fawzy M, Hamid Sayed Abo Bakr Ali A, Ezzat Attya M, Geddawy A. Atorvastatin protects against cyclophosphamide-induced thyroid injury in rats via modulation of JNK/ ERK/ p38 MAPK signaling pathway. Int Immunopharmacol 2023; 124:111061. [PMID: 37844467 DOI: 10.1016/j.intimp.2023.111061] [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: 08/24/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Cancer chemotherapy is associated with various tissue toxicities that limit its use. Cyclophosphamide (CYC) is one of the most commonly used antineoplastic and immunosuppressive agent. Thyroid dysfunction is a critical side effect of anticancer drugs. Atorvastatin (ATV) is antihyperlipedemic drug with different tissue protective activities. The aim of this study was to determine the potential protective effect of ATV against CYC-induced thyroid injury in rats. METHODS ATV was administered in the presence and absence of CYC. Thirty-two adult Wistar rats were randomly divided into four groups: control group, ATV group (20 mg/kg/day, p.o. for 14 day), CYC group (200 mg/kg, i.p. on day 9) and ATV/CYC group. Triiodothyronine (T3), thyroxine (T4), reduced glutathione (GSH), malondialdehyde (MDA), total nitrite/nitrate (NOx), p38 mitogen-activated protein kinase (P38MAPK), extracellular signal-regulated kinase (ERK) and c-Jun N-terminal Kinase (JNK) were measured. In addition, thyroid histopathology and caspase 3 immunohistochemistry were performed. RESULTS CYC significantly increased thyroid MDA, NOx, P38MAPK, ERK and JNK with decrease in GSH, T3 and T4 levels. Histopathological features of thyroid lesions and increased caspase 3 immune expression were appeared. ATV significantly normalized distributed oxidative, inflammatory and apoptotic indicators, resulting in an improvement of histopathological features and reduction of caspase 3 immunoexpression. CONCLUSION These findings suggest that ATV protects against CYC-induced thyroid injury by regulating the JNK/ERK/p38-MAPK signaling pathway.
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Affiliation(s)
| | - Seham A Abdel-Gaber
- Department of Pharmacology, Faculty of Medicine Minia University, Minia 61111, Egypt.
| | - Michael Atef Fawzy
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia, Egypt.
| | | | - Mina Ezzat Attya
- Department of Pathology, Faculty of Medicine, Minia University, Minia 61111, Egypt.
| | - Ayman Geddawy
- Department of Pharmacology, Faculty of Medicine Minia University, Minia 61111, Egypt; Department of Basic Medical Sciences, College of Medicine, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia.
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Yan Y, Wang X, Wu H, Chen C, Li X, Yang R, Li F, Yan L, Mu M, Xu M. Short night-time sleep duration is associated with thyroid nodules: A community-based survey from Guangzhou, China. Postgrad Med 2023; 135:290-295. [PMID: 36268949 DOI: 10.1080/00325481.2022.2139485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Sleep plays a critical role in maintaining human health. This study aimed to explore the association between sleep status and thyroid nodules. METHODS A total of 2414 individuals aged 18 or older with euthyroidism were enrolled in this community-based survey. Sleep status was self-reported. Thyroid ultrasonography was performed to measure nodules. Multiple logistic analyses were applied to adjust for confounding factors. RESULTS The percentages of thyroid nodules among individuals who slept <5 hours, 5-8 hours, and >8 hours per night were 57.79% (115/199), 44.19% (833/1885) and 42.73% (141/330), respectively (p = 0.001). Individuals who slept <5 hours per night had a significantly higher percentage of thyroid nodules than those who slept 5-8 hours per night (57.79% vs. 44.19%, p = 0.001) or >8 hours per night (57.79% vs. 42.73%, P < 0.001). However, no similar result was shown between individuals who slept >8 hours and 5-8 hours per night (42.73% vs. 44.19%, p = 0.621). Multiple logistic analysis showed that a sleep duration of <5 hours per night was significantly associated with thyroid nodules (odds ratio (OR) 1.643, 95% confidence interval (CI) 1.084-2.490, p = 0.019) when compared to a sleep duration of >8 hours per night. However, a sleep duration of <5 hours per night was not associated with thyroid nodules compared to a sleep duration of 5-8 hours (OR 1.294, 95% CI 0.918-1.824, p = 0.141). Similarly, no significant differences were seen among sleep duration per day, time of falling asleep, habit of daytime napping or thyroid nodules in multiple logistic analyses (all p > 0.05). CONCLUSIONS Short nighttime sleep duration was associated with thyroid nodules in our community-based population. Screening for thyroid nodules among these individuals is recommended.
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Affiliation(s)
- Yuerong Yan
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Xiaoyi Wang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Hongshi Wu
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Caixia Chen
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Xiaohui Li
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Rongxue Yang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Feng Li
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Li Yan
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Muchao Mu
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
| | - Mingtong Xu
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, China
- Guang Dong Clinical Research Center for Metabolic Diseases
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Giusti M, Sidoti M. Normal thyroid volume in subjects evaluated in a primary ambulatory setting in Liguria. Minerva Endocrinol (Torino) 2023; 48:19-26. [PMID: 33435646 DOI: 10.23736/s2724-6507.20.03312-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
BACKGROUND Ultrasonography (US) is the simplest method of evaluating thyroid volume (TV). The current normal TV in Liguria is not known. The aim of this study was to obtain normative data on TV in Liguria, Italy. METHODS From 3552 files of endocrine evaluations registered in a primary outpatient setting, we selected 483 files on euthyroid subjects (383 females and 100 males) with a normal echoic pattern on US. The inclusion criterion was the absence of thyroperoxidase autoantibodies and drugs known to interfere with thyroid hormone secretion or metabolism. TV was calculated by means of US. Anthropometric characteristics, smoking habits and the district where subjects lived were registered. RESULTS Less than 50% of patients were not taking any drug. The percentage of obesity was similar in both sexes. TSH levels were similar in males and females. Median TV was 8.0 mL (IQR: 6.7-9.8 mL) in females and 11.8 mL (9.3-15.6 mL) in males (P<0.0001). In females, TV was greater (P=0.01) in smokers than in non-smokers. In both sexes, the right lobe was significantly (P<0.0001) larger in volume than the left. Post-hoc analysis did not show any differences among age-groups in either females or males. In females, but not in males, TV differed significantly (P=0.0002) according to the district of residence. A significant positive correlation was found in both groups between TV and weight, height, BMI and BSA. CONCLUSIONS Reference values of TV in the Ligurian population are now available. TV in the general population could be compared with these normative data.
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Affiliation(s)
- Massimo Giusti
- Unit of Endocrinology, Centro Diagnostico Priamar, Savona, Italy - .,Unit of Endocrinology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy -
| | - Marilena Sidoti
- Unit of Endocrinology, Centro Diagnostico Priamar, Savona, Italy.,School of Endocrinology and Metabolism, ASL 1, Sanremo, Imperia, Italy
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Song B, Lu C, Teng D, Shan Z, Teng W. Association between different metabolic phenotypes of obesity and thyroid disorders among Chinese adults: a nationwide cross-sectional study. Front Endocrinol (Lausanne) 2023; 14:1158013. [PMID: 37152970 PMCID: PMC10162017 DOI: 10.3389/fendo.2023.1158013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/05/2023] [Indexed: 05/09/2023] Open
Abstract
Background Increased body mass index (BMI) and metabolic abnormalities both have potential associations with thyroid disease. The aim of this study was to investigate the correlation between different metabolic phenotypes of obesity and thyroid disorders using nationwide data from China. Methods Data were collected from a cross-sectional survey called the Thyroid Disorders, Iodine Status, and Diabetes Epidemiological Survey conducted between 2015 and 2017 in China. A total of 69007 subjects aged 18 years or older were defined and divided into six groups on the basis of BMI and metabolic health status: metabolically healthy normal weight (MHNW), metabolically unhealthy normal weight (MUNW), metabolically healthy overweight (MHOW), metabolically unhealthy overweight (MUOW), metabolically healthy obesity (MHO), and metabolically unhealthy obesity (MUO). We estimated the odds ratios (ORs) and confidence intervals [CIs] for different thyroid disorders according to metabolic phenotypes using multivariate logistic regression models. Results In our study, we found that the prevalence of subclinical hypothyroidism was almost as high in the MUNW group as in the MUO group, the prevalence of overt hyperthyroidism was highest in the MUNW group and Graves' disease was highest in the MHO group. Our results also suggested that the prevalence of goiter and thyroid nodules increased with increased BMI values and that the MUO group had the highest incidence. Multivariate logistic regression analysis indicated that subjects with unhealthy metabolic phenotypes (MUNW, MUOW, and MUO) all had an increased risk of subclinical hypothyroidism, regardless of their BMI. MUNW subjects had an approximately 1.6-fold higher risk of overt hyperthyroidism and a 1.8-fold higher risk of Graves' disease than their metabolically healthy counterparts (MHNW). The present study also demonstrated that the MUO group had the highest risk of goiter and thyroid nodules among the metabolic phenotypes of obesity. Conclusion Based on our study, we found that metabolic abnormalities and obesity play different roles in various thyroid diseases. Metabolically unhealthy individuals, both with and without obesity, have a higher risk of thyroid disorders than metabolically healthy individuals without obesity.
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Anti-inflammatory and immunomodulatory effects of rosuvastatin in patients with low-to-moderate cardiovascular risk. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2022; 72:303-315. [PMID: 36651514 DOI: 10.2478/acph-2022-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/21/2021] [Indexed: 01/25/2023]
Abstract
Statins have shown anti-inflammatory pleiotropic effects in subjects with/at risk of cardiovascular disease. The aim of this study was to evaluate the inflammatory/immunomodulatory properties of rosuvastatin in subjects at low-to-moderate cardiovascular risk. Data was collected from patients' records, physical examination and blood sampling. Subjects were assigned to rosuvastatin 20 mg per day. Rosuvastatin significantly decreased C-reactive protein (p = 0.045), and increased vascular endothelial growth factor (p = 0.004) and epidermal growth factor (p = 0.009). A multivariate analysis identified total cholesterol (p = 0.027) and vascular endothelial growth factor (p = 0.011) to be independently associated with rosuvastatin treatment. Given beneficial/harmful role of growth factors, vascular endothelial growth factor (VEGF) and epidermal growth factor (EGF), in cardiovascular disease, one would suggest the need for routine monitoring of growth factor levels, especially in patients on long-term statin therapy.
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Zhang F, Teng D, Tong N, Wang G, Li Y, Yu X, Shan Z, Teng W. Gender-Specific Associations Between Metabolic Disorders and Thyroid Nodules: A Cross-Sectional Population-Based Study from China. Thyroid 2022; 32:571-580. [PMID: 35317620 DOI: 10.1089/thy.2021.0686] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background: Metabolic disorders (MDs) and the metabolic syndrome (MetS) may be associated with thyroid diseases. The aim of this study was to investigate the relationship between MDs and various types of thyroid nodules (TNs), according to gender. Methods: We analyzed cross-sectional data from the Thyroid Disorders, Iodine Status, and Diabetes Epidemiological (TIDE) survey in China. A total of 56,729 subjects ≥18 years of age were included. Thyroid gland morphology was assessed by thyroid standardized ultrasonography. A multivariate logistic regression model was used to explore the odds ratio (OR) and confidence intervals [CIs] for any associations between MDs and TNs. Subgroup analyses were conducted according to gender and TN type (solitary, S-TN; multiple, M-TNs). Results: The prevalence of TNs was increased in several MDs, and was higher in women than men regardless of whether they suffered from MDs (22.0%, CI [21.6-22.5%] vs. 15.7%, CI [15.3-16.7%], p < 0.001). TNs were associated with the presence of MDs (OR = 1.189, CI [1.107-1.278], p < 0.001), hypercholesterolemia (OR = 1.235, CI [1.177-1.296], p < 0.001), high low-density lipoprotein cholesterol (LDL-C; OR = 1.249, CI [1.186-1.316], p < 0.001), and hyperuricemia (OR = 1.206, CI [1.126-1.293], p < 0.001). MDs and MetS were, respectively, significantly associated with TNs, S-TNs, and M-TNs in men, while MDs were significantly associated with the three TN profiles in women. With respect to dyslipidemia, hypercholesterolemia and high LDL-C had the strongest association with TNs, whereas hypertriglyceridemia had no effect. Conclusions: TNs (especially M-TNs) may be associated with MDs and their various components, and there appear to be some gender-specific associations.
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Affiliation(s)
- Fan Zhang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, P.R. China
| | - Di Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, P.R. China
| | - Nanwei Tong
- Department of Endocrinology and Metabolism, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Guixia Wang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, P.R. China
| | - Yongze Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, P.R. China
| | - Xiaohui Yu
- Department of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, P.R. China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, P.R. China
| | - Weiping Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, P.R. China
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Song X, Luo Z, Sun H, Hao L. Systematic review and meta-analysis of the diagnostic value of radionuclide imaging for thyroid nodules. Gland Surg 2021; 10:3351-3361. [PMID: 35070895 PMCID: PMC8749081 DOI: 10.21037/gs-21-766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/15/2021] [Indexed: 04/06/2024]
Abstract
BACKGROUND There are many studies on diagnostic imaging of thyroid nodules, among which radionuclide scanning imaging has been proven to be very effective in identifying malignant lesions of thyroid nodules and is now widely used in the clinical detection of thyroid nodules. METHODS Studies on radionuclide imaging in the diagnosis of thyroid nodules were searched in multiple Chinese and English databases, including PubMed, Web of Science, Embase, and The Cochrane Library as of July 1, 2021. The search terms included "clinical experiment", "thyroid nodule", "radionuclide imaging", "thyroid mass", "thyroid masses", "postoperative pathology", and "histopathology". The basic information and evaluation indicators in the literature were screened and extracted. Subsequently, meta-analysis was performed using RevMan 5.3 and Stata 13 software provided by the Cochrane system. In addition, forest plots and summary receiver operating characteristic (SROC) curves were drawn. RESULTS Seven randomized controlled trails (RCTs) were included in this study. The radionuclide imaging of thyroid nodule showed the area under SROC curve of 0.38. The combined diagnostic sensitivity and specificity were 0.66 [95% confidence interval (CI): 0.46, 0.89] and 0.36 (95% CI: 0.21, 0.59), respectively. The combined positive likelihood ratio (LR) and negative LR were 0.66 (95% CI: 0.53, 0.87) and 0.67 (95% CI: 0.43, 0.95), respectively. In addition, the combined diagnostic odds ratio (OR) was 4.45 (95% CI: 0.25, 10.57). DISCUSSION In this study, meta-analysis was used to confirm the application value of radionuclide imaging in the diagnosis of thyroid nodules. In the future, the value of radionuclide imaging in the diagnosis of thyroid nodules should be compared with other imaging detection methods.
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Affiliation(s)
- Xin Song
- Specialty of Geriatric Endocrinology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Zhongmei Luo
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
- Geriatric ICU, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Haiyan Sun
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
- Geriatric ICU, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Lingna Hao
- Specialty of Geriatric Endocrinology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
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Trivedi LU, Femnou Mbuntum L, Halm EA, Mansi I. Is Statin Use Associated With Risk of Thyroid Diseases? Results of a Retrospective Cohort Study. Ann Pharmacother 2021; 55:1110-1119. [PMID: 33412925 DOI: 10.1177/1060028020986552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Given the ubiquity of statin use and prevalence of thyroid diseases, such as thyroid cancer, hyperthyroidism, and thyroiditis, understanding their association deserves further attention. OBJECTIVE To examine the association between statin use and thyroid cancer, thyrotoxicosis, goiter, and thyroiditis. METHODS Using Tricare data, 2 propensity score (PS)-matched cohorts of statin users and nonusers were formed: (1) a PS-matched general cohort (all patients aged 30-85 years) and (2) a PS-matched healthy cohort (excluded patients with cardiovascular diseases or severe comorbidities). Outcomes were thyroid cancer, thyrotoxicosis, goiter, and thyroiditis. Odds ratios (ORs) and 95% CIs of outcomes were estimated using conditional regression analysis. RESULTS Of 43 438 patients, the PS-matched general cohort matched 6342 statin users to 6342 nonusers. The OR of thyroid cancer was 0.62 (95% CI = 0.39-0.996). There was no significant difference between statin users and nonusers in risk of thyrotoxicosis (OR = 0.88; 95% CI = 0.71-1.09), goiter (OR = 0.9; 95% CI = 0.77-1.03), or thyroiditis (OR = 0.78; 95% CI = 0.53-1.15). In the PS-matched healthy cohort (3351 statin users to 3351 nonusers), there was no difference between statin users and nonusers in any outcome. Limitations of the study include its retrospective observational design and use of administrative codes in outcomes ascertainment. CONCLUSION AND RELEVANCE This study did not demonstrate any association of statins with harmful effects on thyroid diseases, which offers assurance to clinicians and patients. Furthermore, statin use appears to be associated with a decreased risk of thyroid cancer, but more studies are needed.
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Affiliation(s)
| | | | - Ethan A Halm
- University of Texas Southwestern, Dallas, TX, USA
| | - Ishak Mansi
- University of Texas Southwestern, Dallas, TX, USA.,VA North Texas Health System, Dallas, TX, USA
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Zhang F, Li Y, Yu X, Wang X, Lin Z, Song B, Tian L, Feng C, Shan Z, Teng W. The Relationship and Gender Disparity Between Thyroid Nodules and Metabolic Syndrome Components Based on a Recent Nationwide Cross-Sectional Study and Meta-Analysis. Front Endocrinol (Lausanne) 2021; 12:736972. [PMID: 34621243 PMCID: PMC8490942 DOI: 10.3389/fendo.2021.736972] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/30/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) has a potential connection with thyroid disease, but its relationship with thyroid nodules (TNs) is still controversial. This study aims to clarify the relationship between MetS and TNs, and this relationship in the subgroup of gender. METHODS The recent nationwide cross-sectional study called Thyroid Disorders, Iodine Status, and Diabetes Epidemiological survey provided the newest data on the relationship between MetS and TNs from China and included 56,729 subjects. We also researched related literature in PubMed, EMBASE, Cochrane Library, and MEDLINE until Oct 30, 2020, in order to perform a meta-analysis. The relevant articles were examined, and the eligible studies were included to assess the association between MetS and TNs. RESULTS The meta-analysis included 15 studies (involving 468,845 subjects). Of these, 14 studies were from the databases, and one study was this cross-sectional data. The meta-analysis showed that TNs were associated with a higher prevalence of MetS (OR=1.87, 95% CI: 1.44-2.45) and the components of MetS, including central obesity (OR=1.41, 95% CI: 1.15-1.72), hypertriglyceridemia (OR=1.13, 95% CI: 1.10-1.15), low high-density lipoprotein cholesterolemia (OR=1.11, 95% CI: 1.02-1.20), abnormal blood pressure (OR=1.68, 95% CI: 1.62-1.75), and hyperglycemia (OR=1.59, 95% CI: 1.46-1.74). Central obesity displayed gender differences, being a risk factor in males (OR=1.38, 95% CI: 1.02-1.86) but not in females (OR=1.47, 95% CI: 0.97-2.23). CONCLUSION TNs were indeed associated with a higher prevalence of MetS. In addition, its component diseases, such as central obesity, hypertriglyceridemia, abnormal blood pressure, and hyperglycemia, were also associated with TNs. Females with MetS or its components had a higher risk of suffering from TNs than males.
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