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Tang J, Chen Y, Xue P, Chen Y, Kong H, Lin C, Wang X, Liu S. Exposure to synthetic steroid hormones and precocious puberty in girls: A case-control study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 283:116814. [PMID: 39083867 DOI: 10.1016/j.ecoenv.2024.116814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/15/2024] [Accepted: 07/25/2024] [Indexed: 08/02/2024]
Abstract
Synthetic steroid hormones are an emerging class of environmental pollutants, but their influence on pubertal timing remains unclear. This case-control study explored the association between synthetic steroid hormone exposure and precocious puberty. Using ultrahigh performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), synthetic steroid hormones were detected in urine samples from 229 Chinese girls, aged 6-9 years. Puberty status was assessed using Tanner staging by professional pediatricians. We conducted the least absolute shrinkage and selection operator (LASSO) regression combined with logistic regression. Besides, we evaluated the joint effects of steroid hormone mixture and identified the main contributor using the Weighted quantile sum (WQS) model and Bayesian kernel machine regression (BKMR) model. The logistic regression model reflected an inverse individual association between precocious puberty and halcinonide [OR (95 %CI): 0.20 (0.07, 0.46)], and budesonide [OR (95 %CI): 0.77 (0.62, 0.95)]. In the joint effects utilizing the WQS model, precocious puberty showed a marginal association with steroid hormone mixture, but was not significant [OR (95 %CI): 0.88 (0.75, 1.04)]. Prednisolone (0.31), fluorometholone acetate (0.24), and dexamethasone acetate (0.12) had the highest weight. Consistently, mixture exposure was not associated with precocious puberty in the BKMR model. In conclusion, precocious puberty was associated with halcinonide and budesonide exposure, but not steroid hormone mixture among girls. It highlighted the management of the residual synthetic steroid hormones in the environment and provided a direction for the prevention of precocious puberty.
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Affiliation(s)
- Jingyi Tang
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China; Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Hainan 572022, China
| | - Yao Chen
- Department of Endocrinology and Genetic Metabolism, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Peng Xue
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China; Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Hainan 572022, China
| | - Yang Chen
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China; Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Hainan 572022, China
| | - Huijun Kong
- Department of Pediatrics, Qufu People's Hospital, Qufu, Shandong 273160, China
| | - Cuilan Lin
- Boai Hospital of Zhongshan, Southern Medical University, Zhongshan, Guangdong 528405, China
| | - Xiumin Wang
- Department of Endocrinology and Genetic Metabolism, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Shijian Liu
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China; Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Hainan 572022, China.
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Li Q, Chao T, Wang Y, Xuan R, Guo Y, He P, Zhang L, Wang J. Transcriptome analysis reveals miRNA expression profiles in hypothalamus tissues during the sexual development of Jining grey goats. BMC Genomics 2024; 25:832. [PMID: 39232653 PMCID: PMC11373458 DOI: 10.1186/s12864-024-10735-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 08/22/2024] [Indexed: 09/06/2024] Open
Abstract
BACKGROUND Exploring the physiological and molecular mechanisms underlying goat sexual maturation can enhance breeding practices and optimize reproductive efficiency and is therefore substantially important for practical breeding purposes. As an essential neuroendocrine organ in animals, the hypothalamus is involved in sexual development and other reproductive processes in female animals. Although microRNAs (miRNAs) have been identified as significant regulators of goat reproduction, there is a lack of research on the molecular regulatory mechanisms of hypothalamic miRNAs that are involved in the sexual development of goats. Therefore, we examined the dynamic changes in serum hormone profiles and hypothalamic miRNA expression profiles at four developmental stages (1 day (neonatal, D1, n = 5), 2 months (prepubertal, M2, n = 5), 4 months (sexual maturity, M4, n = 5), and 6 months (breeding period, M6, n = 5)) during sexual development in Jining grey goats. RESULTS Transcriptome analysis revealed 95 differentially expressed miRNAs (DEMs) in the hypothalamus of goats across the four developmental stages. The target genes of these miRNAs were significantly enriched in the GnRH signalling pathway, the PI3K-Akt signalling pathway, and the Ras signalling pathway (P < 0.05). Additionally, 16 DEMs are common among the M2 vs. D1, M4 vs. D1, and M6 vs. D1 comparisons, indicating that the transition from D1 to M2 represents a potentially critical period for sexual development in Jining grey goats. The bioinformatics analysis results indicate that miR-193a/miR-193b-3p-Annexin A7 (ANXA7), miR-324-5p-Adhesion G protein-coupled receptor A1 (ADGRA1), miR-324-3p-Erbb2 receptor tyrosine kinase 2 (ERBB2), and miR-324-3p-Rap guanine nucleotide exchange factor 3 (RAPGEF3) are potentially involved in biological processes such as hormone secretion, energy metabolism, and signal transduction. In addition, we further confirmed that miR-324-3p targets the regulatory gene RAPGEF3. CONCLUSION These results further enrich the expression profile of hypothalamic miRNAs in goats and provide important insights for studying the regulatory effects of hypothalamic miRNAs on the sexual development of goats after birth.
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Affiliation(s)
- Qing Li
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
| | - Tianle Chao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
| | - Yanyan Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
| | - Rong Xuan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
| | - Yanfei Guo
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
| | - Peipei He
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
| | - Lu Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China
| | - Jianmin Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China.
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Tai'an City, 271014, Shandong Province, China.
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Jeong HR, Hwang IT. The role of MicroRNAs as fine-tuners in the onset of puberty: a comprehensive review. Ann Pediatr Endocrinol Metab 2024; 29:211-219. [PMID: 39231482 PMCID: PMC11374517 DOI: 10.6065/apem.2346238.119] [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: 11/29/2023] [Accepted: 02/06/2024] [Indexed: 09/06/2024] Open
Abstract
MicroRNA (miRNA) are small, noncoding RNA molecules that play pivotal roles in gene expression, various biological processes, and development of disease. MiRNAs exhibit distinct expression patterns depending on time points and tissues, indicating their relevance to the development, differentiation, and somatic growth of organisms. MiRNAs are also involved in puberty onset and fertility. Although puberty is a universal stage in the life cycles of most organisms, the precise mechanisms initiating this process remain elusive. Genetic, hormonal, nutritional, environmental, and epigenetic factors are presumed contributors. The intricate regulation of puberty during growth also suggests that miRNAs are involved. This study aims to provide insight into the understanding of miRNAs roles in the initiation of puberty by reviewing the existing research.
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Affiliation(s)
- Hwal Rim Jeong
- Department of Pediatrics, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Il Tae Hwang
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Giannakopoulos A, Chrysis D. Reversibility of disturbed pituitary function in pediatric conditions with psychological stressors: implications for clinical practice. Hormones (Athens) 2024:10.1007/s42000-024-00536-z. [PMID: 38421589 DOI: 10.1007/s42000-024-00536-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
The complex communication network between the central nervous system and the hypothalamic-pituitary axis forms the basis of endocrine functional plasticity, which facilitates adaptation to changing internal and external conditions, but also makes it vulnerable to the negative effects of stressful psychological factors. Herein, clinical conditions such as functional hypothalamic amenorrhea, eating disorders, growth faltering, post-traumatic stress disorder, and pubertal disorders that may emerge during childhood or adolescence, their origin possibly including psychological stressors, are analyzed regarding their genetic susceptibility and reversibility of endocrine function. A discussion on the optimization of therapeutic management defined by managing stress and maximizing the degree and rate of reversibility follows.
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Affiliation(s)
- Aristeidis Giannakopoulos
- Division of Pediatric Endocrinology, Department of Pediatrics, Medical School of Patras, University Hospital, Rio, 26504, Patras, Greece.
| | - Dionisios Chrysis
- Division of Pediatric Endocrinology, Department of Pediatrics, Medical School of Patras, University Hospital, Rio, 26504, Patras, Greece
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Abreu AP. Unveiling the Central Regulation of Pubertal Development. J Clin Endocrinol Metab 2024; 109:e1307-e1308. [PMID: 37589951 DOI: 10.1210/clinem/dgad486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/18/2023]
Affiliation(s)
- Ana Paula Abreu
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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Tang J, Yu T, Jiang Y, Xue P, Kong H, Lin C, Liu S, Tian Y. The association between sleep and early pubertal development in Chinese children: a school population-based cross-sectional study. Front Endocrinol (Lausanne) 2023; 14:1259172. [PMID: 38075047 PMCID: PMC10704028 DOI: 10.3389/fendo.2023.1259172] [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: 07/15/2023] [Accepted: 11/07/2023] [Indexed: 12/18/2023] Open
Abstract
Background There is an increasing tendency toward early pubertal development, and sleep might be related to pubertal onset. We aimed to investigate the association of sleep duration and bedtime with early pubertal development. Methods This was a cross-sectional study of 8,007 children (53.6% boys) from Qufu city, Shandong province and Zhongshan city, Guangdong province, China. Data on sleep duration and bedtime were obtained by questionnaire. Early pubertal development was the primary outcome and it was evaluated by the pediatrician according to Tanner staging. Logistic regression models were used to separately examine the association between sleep duration or bedtime and early pubertal development, controlling body mass index (BMI), dietary pattern, soft drink, feeding pattern and mother's BMI. Results In boys, short sleep duration was strongly related to early pubertal development [OR (95%CI): 4.26 (1.30, 13.94)], and this association was intensified after adjusted BMI, dietary pattern, soft drink, feeding pattern and mother's BMI. In girls, OR (95%CI) was 1.62 (1.04, 2.51), and increased after controlling BMI. Bedtime was associated with early pubertal development on weekdays [OR (95%CI): 6.39 (1.54, 26.45) in boys and 1.93 (1.23, 3.05) in girls], but not on weekends [OR (95%CI): 2.49 (0.61, 10.21) in boys; 1.31 (0.76, 2.25) in girls]. Conclusion This study underscores the positive association between the risk of early pubertal development and insufficient sleep duration and late bedtime.
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Affiliation(s)
- Jingyi Tang
- Hainan Branch, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Sanya, China
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Tingting Yu
- Hainan Branch, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Sanya, China
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yanrui Jiang
- Department of Developmental and Behavioral Pediatrics, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Peng Xue
- Hainan Branch, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Sanya, China
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Huijun Kong
- Department of Pediatrics, Qu Fu People’s Hospital, Qufu, Shandong, China
| | - Cuilan Lin
- BoAi Hospital of Zhongshan, Southern Medical University, Zhongshan, Guangdong, China
| | - Shijian Liu
- Hainan Branch, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Sanya, China
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ying Tian
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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McAuley ABT, Varley I, Herbert AJ, Suraci B, Baker J, Johnston K, Kelly AL. Maturity-Associated Polygenic Profiles of under 12-16-Compared to under 17-23-Year-Old Male English Academy Football Players. Genes (Basel) 2023; 14:1431. [PMID: 37510335 PMCID: PMC10380058 DOI: 10.3390/genes14071431] [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: 06/07/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The purpose of this study was to examine polygenic profiles previously associated with maturity timing in male academy football players across different age phases. Thus, 159 male football players from four English academies (U12-16, n = 86, aged 13.58 ± 1.58 years; U17-23, n = 73, aged 18.07 ± 1.69 years) and 240 male European controls were examined. Polygenic profiles comprised 39 single nucleotide polymorphisms and were analysed using unweighted and weighted total genotype scores (TGSs; TWGSs). There were significant differences in polygenic profiles between groups, whereby U17-23 players had more genetic variants associated with later maturity compared to U12-16 players (TGS, p = 0.010; TWGS, p = 0.024) and controls (TGS, p = 0.038; TWGS, p = 0.020). More specifically, U17-23 players had over two-times the odds of possessing >36 later-maturing alleles than <30 compared to U12-16 players (odds ratio (OR) = 2.84) and controls (OR = 2.08). These results suggest there was a greater proportion of relatively later-maturing players as maturation plateaus towards adulthood, which may be explained by the 'underdog hypothesis'. This study provides the first known molecular evidence that supports the notion that a maturity selection bias exists within male academy football.
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Affiliation(s)
- Alexander B T McAuley
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| | - Ian Varley
- Department of Sport Science, Nottingham Trent University, Nottingham NG11 8NS, UK
| | - Adam J Herbert
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| | - Bruce Suraci
- Academy Coaching Department, AFC Bournemouth, Bournemouth BH7 7AF, UK
| | - Joseph Baker
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
| | - Kathryn Johnston
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
| | - Adam L Kelly
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
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Magnotto JC, Mancini A, Bird K, Montenegro L, Tütüncüler F, Pereira SA, Simas V, Garcia L, Roberts SA, Macedo D, Magnuson M, Gagliardi P, Mauras N, Witchel SF, Carroll RS, Latronico AC, Kaiser UB, Abreu AP. Novel MKRN3 Missense Mutations Associated With Central Precocious Puberty Reveal Distinct Effects on Ubiquitination. J Clin Endocrinol Metab 2023; 108:1646-1656. [PMID: 36916482 PMCID: PMC10653150 DOI: 10.1210/clinem/dgad151] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/02/2023] [Accepted: 03/10/2023] [Indexed: 03/15/2023]
Abstract
CONTEXT Loss-of-function mutations in the maternally imprinted genes, MKRN3 and DLK1, are associated with central precocious puberty (CPP). Mutations in MKRN3 are the most common known genetic etiology of CPP. OBJECTIVE This work aimed to screen patients with CPP for MKRN3 and DLK1 mutations and analyze the effects of identified mutations on protein function in vitro. METHODS Participants included 84 unrelated children with CPP (79 girls, 5 boys) and, when available, their first-degree relatives. Five academic medical institutions participated. Sanger sequencing of MKRN3 and DLK1 5' upstream flanking and coding regions was performed on DNA extracted from peripheral blood leukocytes. Western blot analysis was performed to assess protein ubiquitination profiles. RESULTS Eight heterozygous MKRN3 mutations were identified in 9 unrelated girls with CPP. Five are novel missense mutations, 2 were previously identified in patients with CPP, and 1 is a frameshift variant not previously associated with CPP. No pathogenic variants were identified in DLK1. Girls with MKRN3 mutations had an earlier age of initial pubertal signs and higher basal serum luteinizing hormone and follicle-stimulating hormone compared to girls with CPP without MRKN3 mutations. Western blot analysis revealed that compared to wild-type MKRN3, mutations within the RING finger domain reduced ubiquitination whereas the mutations outside this domain increased ubiquitination. CONCLUSION MKRN3 mutations were present in 10.7% of our CPP cohort, consistent with previous studies. The novel identified mutations in different domains of MKRN3 revealed different patterns of ubiquitination, suggesting distinct molecular mechanisms by which the loss of MRKN3 results in early pubertal onset.
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Affiliation(s)
- John C Magnotto
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Alessandra Mancini
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Keisha Bird
- Division of Endocrinology, Diabetes, and Metabolism, Nemours Children's Health, Jacksonville, FL 32207, USA
| | - Luciana Montenegro
- Unidade de Endocrinologia do Desenvolvimento, Laboratório de Hormônios e Genética Molecular/LIM42, Hospital das Clínicas, Disciplina de Endocrinologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Filiz Tütüncüler
- Department of Pediatrics and Pediatric Endocrinology Unit, Trakya University Faculty of Medicine, Edirne 22030, Turkey
| | - Sidney A Pereira
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Vitoria Simas
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Leonardo Garcia
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Stephanie A Roberts
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Division of Endocrinology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Delanie Macedo
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Melissa Magnuson
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Priscila Gagliardi
- Division of Endocrinology, Diabetes, and Metabolism, Nemours Children's Health, Jacksonville, FL 32207, USA
| | - Nelly Mauras
- Division of Endocrinology, Diabetes, and Metabolism, Nemours Children's Health, Jacksonville, FL 32207, USA
| | - Selma F Witchel
- Pediatric Endocrinology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Rona S Carroll
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ana Claudia Latronico
- Unidade de Endocrinologia do Desenvolvimento, Laboratório de Hormônios e Genética Molecular/LIM42, Hospital das Clínicas, Disciplina de Endocrinologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Ursula B Kaiser
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ana Paula Abreu
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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Su PH, Huang JY, Wang SLJ, Chang HP. Phthalates exposure and pubertal development in a 15-year follow-up birth cohort study in Taiwan. Front Endocrinol (Lausanne) 2023; 14:1065918. [PMID: 37288299 PMCID: PMC10242106 DOI: 10.3389/fendo.2023.1065918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/10/2023] [Indexed: 06/09/2023] Open
Abstract
Purpose Phthalates are ubiquitous endocrine disruptors that can affect pubertal development in children. The association of fetal and childhood levels of phthalates with pubertal development were explored. Methods We conduct a population-based birth cohort study to investigate the association between prenatal and childhood exposure to phthalates and pubertal development. Initially, a total of 445 children were recruited from 2000 to 2001, of which 90 children were followed for 15 years which measurements of urine and development assessed at 2, 5, 8, 11, and 14 years. We defined higher Tanner stage as the 14-year-old Tanner stage ≥ 4 and 5 for boys and girls, respectively. A logistic regression analysis was conducted to estimate the crude and adjusted odds ratio of a higher Tanner stage at 14 years old. The Pearson correlation coefficient and multiple linear regression were used to estimate the association of testicular volume, uterine volume, ovarian volume, and blood hormones at 14 years of age with the log-transformed concentration of phthalates at 2, 5, 8, 11, and 14 years. Results In boys, a significantly different geometric mean of mono-benzyl phthalate (MBzP) was observed in 11-year-olds; 6.82 and 2.96 in the lower Tanner stage group and higher Tanner stage group. In girls, a significant difference in the geometric mean of mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) in 11-year-olds and mono-ethyl phthalate (MEP) in 2-year-olds was observed; MEHHP was 32.97 and 18.13 in the lower Tanner stage group and higher Tanner stage group, and MEP was 26.54 and 65.74 in the lower Tanner stage group and higher Tanner stage group, respectively. Uterine volume at 14 years old was negatively associated with several phthalate metabolites (MEHP at 8 years old, MnBP at 8 years old, MBzP at 14 years old, MMP prenatally, MMP at 8 years old, and MEP at 8 years old) after adjusting for covariates. However, no significant correlations were found between phthalate metabolites and ovarian or testicular volume. Conclusion Phthalate exposure at certain time points may influence the reproductive development of children during puberty; however, further studies should be conducted to determine the causal nature of this association.
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Affiliation(s)
- Pen-Hua Su
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Jing-Yang Huang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shu-Li Julie Wang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
- Department of Public Health, National Defense Medical Center, Taipei, Taiwan
| | - Hua-Pin Chang
- Department of Nursing, Asia University, Taichung, Taiwan
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Khabibullina DA, Kolodkina AA, Vizerov TV, Zubkova NA, Bezlepkina OB. [Gonadotropin-dependent precocious puberty: genetic and clinical characteristics]. PROBLEMY ENDOKRINOLOGII 2023; 69:58-66. [PMID: 37448272 DOI: 10.14341/probl13215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/12/2023] [Accepted: 01/22/2023] [Indexed: 07/15/2023]
Abstract
BACKGROUND In 90% cases of girls and 25-60% cases of boys the cause of gonadotropin-dependent precocious puberty (PP) is unclear. Up to 25-27.5% of gonadotropin-dependent PP cases are monogenic and suggest autosomal-dominant inheritance with incomplete sex-dependent penetrance. To date, mutations in genes KISS1, KISS1R, MKRN3, DLK1 have been described as causal variants leading to precocious hypothalamic-pituitary axis activation in childhood. Genetic testing in patients with hereditary forms of PP can expand our knowledge of underlying molecular mechanisms of the disease and it is also necessary for genetic counselling. AIM To study clinical features and genetic characteristics of patients with idiopathic gonadotropin-dependent precocious puberty. MATERIALS AND METHODS A group of patients with idiopathic gonadotropin-dependent precocious puberty and positive family history (early or precocious puberty) was examined. Laboratory and instrumental diagnostic tests, full-exome sequencing (NGS, next-generation sequencing) were provided for all patients. RESULTS The study included 30 patients (29 girls, 1 boy) with idiopathic gonadotropin-dependent precocious puberty. The median of patients age at the time of the examination was 7,2 years [6,5; 7,7]. Positive family history presented in all cases: in 40% of patients on father's side, in 37% - on mother's side, in 23% of patients PP was diagnosed in siblings. The fullexome sequencing was conducted to 21 patients: in 61,9% of cases (95% CI [40;79]) nucleotide variants were identified in genes, associated with gonadotropin-dependent precocious puberty. MKRN3 gene defect was detected in most cases (77% cases (95% CI [49; 92]), which consistent with international data on its highest prevalence in the monogenic forms of PP. In 23% of cases (95% CI [7; 50]) nucleotide variants were identified in other candidate genes associated with neuroontogenesis and neuroendocrine regulation mechanisms of hypothalamic-pituitary axis. CONCLUSION Our study confirms that detailed family history data in children with PP provides a rational approach to molecular-genetic testing. Data of inheritance pattern and clinical manifestations will simplify the diagnosis of hereditary forms of disease and enhance genetic counselling of families, followed by timely examination and administration of pathogenetic therapy.
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