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Yu T, Yu Y, Li X, Xue P, Yu X, Chen Y, Kong H, Lin C, Wang X, Mei H, Wang D, Liu S. Effects of childhood obesity and related genetic factors on precocious puberty: protocol for a multi-center prospective cohort study. BMC Pediatr 2022; 22:310. [PMID: 35624438 PMCID: PMC9135982 DOI: 10.1186/s12887-022-03350-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 05/11/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Childhood obesity has important effects on the onset and development of puberty. Although a number of studies have confirmed the relationship between obesity and precocious puberty, little is known about the pleiotropic genes of obesity and precocious puberty and the interaction between genes and environment. There are four objectives: (1) to analyze the incidence of precocious puberty in the general population in China; (2) to verify the direct effect of obesity on children's precocious puberty using a variety of methods; (3) to verify the effect of obesity and its risk gene polymorphism on precocious puberty in a prospective cohort study; and (4) to analyze the interaction effect of genes and environment on pubertal development. METHODS We will conduct a multi-center prospective cohort study in three cities, which are selected in southern, central, and northern China, respectively. Primary schools in these cities will be selected by a stratified cluster random sampling method. Primary school students from grade 1 to grade 3 (6 to 10 years old) will be selected for the cohort with extensive baseline data collection, including assessment of pubertal development, family demographic information, early development, sleep pattern, dietary pattern, and physical activity. Participants will be followed up for at least three years, and long-term follow-up will depend on future funding. DISCUSSION The findings of this multicenter prospective population-based cohort study may expand previous related puberty development research as well as provide important information on the mechanism of early puberty. Targeted interventions can also be developed to improve adolescent health problems related to puberty development based on the available evidence. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04113070 , prospectively registered on October 2, 2019.
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Affiliation(s)
- Tingting Yu
- Sanya Women and Children's Hospital, managed by Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 339 Yingbin Road, Sanya, 572022, China.,Office of Hospital Infection Management, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ying Yu
- Sanya Women and Children's Hospital, managed by Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 339 Yingbin Road, Sanya, 572022, China
| | - Xiaoqing Li
- Sanya Women and Children's Hospital, managed by Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 339 Yingbin Road, Sanya, 572022, China.,School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peng Xue
- Sanya Women and Children's Hospital, managed by Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 339 Yingbin Road, Sanya, 572022, China.,School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaodan Yu
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yao Chen
- Department of Endocrinology and Genetic Metabolism, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 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
| | - Xiumin Wang
- Department of Endocrinology and Genetic Metabolism, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Mei
- Department of Data Science, School of Population Health, University of Mississippi Medical Center, Jackson, MS, USA
| | - Dan Wang
- Sanya Women and Children's Hospital, managed by Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 339 Yingbin Road, Sanya, 572022, China.
| | - Shijian Liu
- Sanya Women and Children's Hospital, managed by Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 339 Yingbin Road, Sanya, 572022, China. .,School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China. .,Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dongfang Road, Shanghai, 200127, China.
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Zhou J, Zhang F, Zhang S, Li P, Qin X, Yang M, Teng Y, Huang K. Maternal pre-pregnancy body mass index, gestational weight gain, and pubertal timing in daughters: A systematic review and meta-analysis of cohort studies. Obes Rev 2022; 23:e13418. [PMID: 35014751 DOI: 10.1111/obr.13418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/10/2021] [Accepted: 12/18/2021] [Indexed: 11/30/2022]
Abstract
The timing of daughter's puberty onset is constantly earlier. It is still unclear about the maternal pre-pregnancy body mass index (BMI) and gestational weight gain (GWG) as important prenatal factors that may affect offspring's onset of puberty. Thus, we evaluated the association among maternal pre-pregnancy BMI, GWG, and daughters' early pubertal development based on the existing literature. Literature review was conducted in different databases, including Web of Science, Pubmed, Wiley, ScienceDirect, Web of Science, and Chinese National Knowledge Infrastructure databases up to June 2021. We selected random effects model or fixed effects model for meta-analysis according to the I2 statistics value to obtain the summary measurement. A total of 12 cohort studies were included. Compared to maternal pre-pregnancy normal weight, maternal pre-pregnancy overall overweight/obesity (RR = 1.24; 95% CI 1.17 to 1.32), obesity (RR = 1.35; 95% CI 1.23 to 1.48), and overweight (RR = 1.17; 95% CI 1.09 to 1.26) were significantly associated with the increased risk of earlier timing of pubertal onset in daughters. Daughters born of mothers with pre-pregnancy overall overweight/obesity, obesity, and overweight had earlier pubertal onset compared to those born of mothers with normal weight ([mean difference = -3.03, 95% CI: -3.97 to -2.10], [mean difference = -3.50, 95% CI: -5.38 to -1.62], and [mean difference = -2.89, 95% CI: -4.07 to -1.71], respectively). The effects were also significant in the assessed three milestones (menarche, breast development, and pubic hair development). Maternal excessive GWG increased the risk of early pubertal timing in daughters (RR = 1.19; 95% CI 1.09 to 1.30).
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Affiliation(s)
- Jixing Zhou
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Fu Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Shanshan Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Peixuan Li
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Xiaoyun Qin
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Mengting Yang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Yuzhu Teng
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Kun Huang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China.,Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei, China.,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China.,Scientific Research Center in Preventive Medicine, School of Public Health, Anhui Medical University, Hefei, China
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Yue M, Liu Q, Wang F, Zhou W, Liu L, Wang L, Zou Y, Zhang L, Zheng M, Zeng S, Gao J. Urinary neonicotinoid concentrations and pubertal development in Chinese adolescents: A cross-sectional study. ENVIRONMENT INTERNATIONAL 2022; 163:107186. [PMID: 35325769 DOI: 10.1016/j.envint.2022.107186] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 02/14/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Animal studies suggest that exposure to certain neonicotinoids may interfere with the normal function of endocrine system in mammals. However, evidence from human studies is limited. OBJECTIVES This study conducted a cross-sectional analysis to examine urinary neonicotinoids concentrations in Chinese adolescents and its association with pubertal development. METHODS 774 urine samples from 439 boys (median age: 13.7 years; 25th-75th percentile: 12.7-14.5 years) and 335 girls (median age: 13.7 years; 25th-75th percentile: 12.7-14.5 years) were collected for determination of ten neonicotinoids (imidacloprid, nitenpyram, acetamiprid, thiacloprid, imidaclothiz, thiamethoxam, clothianidin, dinotefuran, flonicamid, sulfoxaflor) and one metabolite (N-desmethyl-acetamiprid). Urinary creatinine was detected for concentration adjustment. Pubertal development including pubic hair, axillary hair, genitalia (boys), testicular volume (boys) and breast (girls) assessed by Tanner stages and others (spermarche, facial hair for boys and menarche for girls) were obtained by physical examination and questionnaire. Logistic and bayesian kernel machine regression were used to investigate the association between neonicotinoids concentrations and pubertal developments. RESULTS High detection rates ranged from 72.0% to 100.0% for all neonicotinoids. Boys and girls with thiacloprid concentration at the >75th percentile had lower stage of genitalia development (OR: 0.83, 95% CI: 0.33-0.93) and higher stage of axillary hair development (OR: 1.46, 95% CI: 1.12-3.41), respectively, compared with those at the <25th percentile. The estimate change in genitalia stage was significantly different at or above the 75th percentile concentration of neonicotinoids mixture compared to the 50th percentile concentration. No associations were found between other urinary neonicotinoids and other indicators of puberty. CONCLUSIONS Higher thiacloprid concentration was associated with delayed genitalia development in boys and early axillary hair development in girls. Neonicotinoids mixture was negatively associated with genitalia stage in the joint effect. Given the characteristic of the cross-sectional study, our results need further confirmation of the causal relationship.
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Affiliation(s)
- Min Yue
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Qin Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Feng Wang
- Chongqing Nan'an Center for Disease Control and Prevention, Chongqing 400067, PR China
| | - Wenli Zhou
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Liying Liu
- Chongqing Nan'an Center for Disease Control and Prevention, Chongqing 400067, PR China
| | - Lu Wang
- Chongqing Nan'an Center for Disease Control and Prevention, Chongqing 400067, PR China
| | - Yong Zou
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Liyu Zhang
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Meilin Zheng
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Shaohua Zeng
- China Coal Technology & Engineering Group Chongqing Research Institute, Chongqing 400039, PR China
| | - Jieying Gao
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China.
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Kanellakis S, Karalexi MA, Apostolidou E, Skoufas E, Kontoe M, Bacopoulou F, Tsitsas G, Migdanis A, Boudouvi E, Canellopoulos L, Manios Y. Earlier Age at Menarche Is Associated with Body Fat and Negative Body Image in Adult Life. Behav Med 2022; 49:105-114. [PMID: 35387571 DOI: 10.1080/08964289.2022.2033158] [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] [Indexed: 11/02/2022]
Abstract
Earlier age at menarche is one of the well-documented antecedents of a range of adverse health effects in adulthood including obesity and psychopathological effects. Yet, few researchers have examined the potential association of menarcheal age with body fat distribution, self-perception, and body image. We retrospectively tested a sample (N = 392) of adult women (18-80 years) to examine the associations of age at menarche with body composition and body image indices. Analyses of covariance and multivariable logistic and linear regression were fitted adjusting for age, physical activity level, smoking, and alcohol consumption. Further adjustment was made for body mass index (BMI) and percentage of fat mass. Earlier age at menarche was associated with slightly increased odds of higher BMI and abdominal fat percentage; of note is the positive correlation with lower body composition indices including hip and calf circumferences/skinfolds. Additionally, earlier age at menarche was associated with higher scores in the negative body image scales, namely overweight preoccupation and self-classified weight, whereas lower risks were found for higher scores in the positive body image scales, namely appearance evaluation and body area satisfaction scales. These findings remained significant after correcting for body fat percentage. The present results showed positive associations for earlier age at menarche with gross indices of obesity with the associations mainly confined to distribution of body fat in the lower part of the body, whereas an increased risk of negative body image was also found. Future research could refine our understanding of the biological and psychological mechanisms underlying these associations.
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Affiliation(s)
- Spyridon Kanellakis
- Department of Nutrition and Dietetics, Harokopio University of Athens, Athens, Greece
| | - Maria A Karalexi
- Third Department of Pediatrics, General University Hospital "Attikon," National and Kapodistrian University of Athens, Athens, Greece
| | - Eftychia Apostolidou
- Department of Nutrition and Dietetics, Harokopio University of Athens, Athens, Greece
| | - Estathios Skoufas
- Department of Nutrition and Dietetics, Harokopio University of Athens, Athens, Greece
| | - Maria Kontoe
- Department of Nutrition and Dietetics, Harokopio University of Athens, Athens, Greece
| | - Flora Bacopoulou
- Center for Adolescent Medicine and UNESCO Chair on Adolescent Health Care, First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens, Greece
| | - Georgios Tsitsas
- Counseling Psychology, Harokopio University of Athens, Athens, Greece
| | - Athanasios Migdanis
- Nutrition, Dietetics and Food Technology Department, ATEI of Thessaly, Larissa, Greece
| | - Evangelia Boudouvi
- Third Department of Pediatrics, General University Hospital "Attikon," National and Kapodistrian University of Athens, Athens, Greece
| | - Lissy Canellopoulos
- Department of Psychology, School of Philosophy, National and Kapodistrian University of Athens, Athens, Greece
| | - Yannis Manios
- Department of Nutrition and Dietetics, Harokopio University of Athens, Athens, Greece
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Aghaee S, Quesenberry CP, Deardorff J, Kushi LH, Greenspan LC, Ferrara A, Kubo A. Associations between infant growth and pubertal onset timing in a multiethnic prospective cohort of girls. BMC Pediatr 2022; 22:171. [PMID: 35361165 PMCID: PMC8969386 DOI: 10.1186/s12887-022-03242-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 03/17/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Early puberty increases risk of adverse health conditions throughout the life course. US girls are experiencing earlier puberty without clear reasons. Studies suggest early life factors, such as infant growth, may influence pubertal timing. We assessed the associations between infant growth and onset of breast development (thelarche), pubic hair development (pubarche), and menarche in girls. METHODS A prospective cohort of girls born at a Kaiser Permanente Northern California medical facility in 2005-11 was used. Weight-for-age z-scores were calculated at birth and 24 months. Difference in z-scores greater than 0.67 represent rapid "catch-up" growth, less than -0.67 represent delayed "catch-down" growth, and between -0.67 and 0.67 represent "normal" growth. Pubertal onset was measured using clinician-assessed sexual maturity ratings (SMRs) and defined as the age at transition from SMR 1 to SMR 2 + for both thelarche and pubarche. SMR data was collected through June 2020. Menarche was analyzed as a secondary outcome. Weibull and modified Poisson regression models were used. Models were adjusted for potential confounders. RESULTS There were 15,196 girls included in the study. Approximately 30.2% experienced catch-up growth, 25.8% experienced catch-down growth, and 44% had normal growth. Girls with catch-up growth had increased risk of earlier thelarche (hazard ratio = 1.26, 95% confidence interval (CI): 1.18, 1.35), pubarche (1.38, 95% CI: 1.28, 1.48), and menarche (< 12y, relative risk = 1.52, 95% CI: 1.36, 1.69) compared to those with normal growth, after adjusting for covariates. These associations were partially mediated by childhood body mass index. Catch-down growth was associated with later pubertal onset. CONCLUSIONS Girls who experience infant catch-up growth have higher risk of earlier pubertal development compared to girls with normal growth and the associations are partially explained by childhood obesity. This information may help clinicians to monitor girls who are at high risk of developing earlier.
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Affiliation(s)
- Sara Aghaee
- Kaiser Permanente Northern California Division of Research, 2000 Broadway, Oakland, CA, 94612, USA
| | - Charles P Quesenberry
- Kaiser Permanente Northern California Division of Research, 2000 Broadway, Oakland, CA, 94612, USA
| | - Julianna Deardorff
- Division of Maternal and Child Health, University of California, School of Public Health, 2121 Berkeley Way #5302, Berkeley, CA, 94720, USA
| | - Lawrence H Kushi
- Kaiser Permanente Northern California Division of Research, 2000 Broadway, Oakland, CA, 94612, USA
| | - Louise C Greenspan
- Kaiser Permanente San Francisco Medical Center, 2425 Geary Boulevard, San Francisco, CA, 94115, USA
| | - Assiamira Ferrara
- Kaiser Permanente Northern California Division of Research, 2000 Broadway, Oakland, CA, 94612, USA
| | - Ai Kubo
- Kaiser Permanente Northern California Division of Research, 2000 Broadway, Oakland, CA, 94612, USA.
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Udholm LF, Gaml‐Sørensen A, Arendt LH, Brix N, Lunddorf LLH, Ernst A, Knudsen UB, Hjortdal VE, Ramlau‐Hansen CH. Timing of Pubertal Development in Boys and Girls With Congenital Heart Defects: A Nationwide Cohort Study. J Am Heart Assoc 2022; 11:e023135. [PMID: 35347999 PMCID: PMC9075439 DOI: 10.1161/jaha.121.023135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Children with congenital heart defects (CHD) have an increased risk of developmental delay. It remains sparsely investigated if these patients also have a delayed pubertal development. In this nationwide cohort study, we evaluated if CHD was associated with timing of puberty using longitudinally collected data on pubertal milestones. Methods and Results We used data from the Danish nationwide Puberty Cohort. Information on CHD was obtained from the Danish National Patient Register. Information on pubertal development was obtained from 15 780 children through questionnaires answered half‐yearly from 11 years until 18 years or full maturity. Using a multivariable regression model for censored time‐to‐event data, mean difference in age at attaining each pubertal milestone was estimated, including a combined pubertal marker. Compared with children without CHD, analyses were performed for both CHD overall and subdivided into simple and complex CHD. In a subanalysis, analyses were repeated in children born at term. In total, 137 children (62 boys and 75 girls) had a CHD diagnosis. Overall, no difference in age at pubertal timing was observed for children with CHD compared with unaffected children. The average differences were small for both boys (1.6 [95% CI, −2.6 to 5.7] months) and girls (1.0 [95% CI, −2.5 to 4.4] months). The same differences were observed when subdividing into simple or complex CHD and when restricting to children born at term. Conclusions We found no association between CHD and pubertal timing. For the group of children with complex CHD, we were unable to exclude a later pubertal timing.
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Affiliation(s)
- Louise F. Udholm
- Department of Cardiothoracic Surgery Copenhagen University Hospital Copenhagen Denmark
- Department of Clinical Medicine Copenhagen University Copenhagen Denmark
- Department of Public Health Research Unit for Epidemiology Aarhus University Aarhus Denmark
| | - Anne Gaml‐Sørensen
- Department of Public Health Research Unit for Epidemiology Aarhus University Aarhus Denmark
| | - Linn H. Arendt
- Department of Public Health Research Unit for Epidemiology Aarhus University Aarhus Denmark
- Department of Obstetrics and Gynaecology Horsens Regional Hospital Horsens Denmark
| | - Nis Brix
- Department of Public Health Research Unit for Epidemiology Aarhus University Aarhus Denmark
- Department of Clinical Genetics Aarhus University Hospital Aarhus Denmark
| | - Lea L. H. Lunddorf
- Department of Public Health Research Unit for Epidemiology Aarhus University Aarhus Denmark
| | - Andreas Ernst
- Department of Public Health Research Unit for Epidemiology Aarhus University Aarhus Denmark
| | - Ulla B. Knudsen
- Department of Obstetrics and Gynaecology Horsens Regional Hospital Horsens Denmark
- Department of Clinical Medicine Aarhus University Aarhus Denmark
| | - Vibeke E. Hjortdal
- Department of Cardiothoracic Surgery Copenhagen University Hospital Copenhagen Denmark
- Department of Clinical Medicine Copenhagen University Copenhagen Denmark
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Al-Taiar A, Al-Sabah R, Shaban L, Sharaf Alddin R, Durgampudi PK, Galadima H. Is age of menarche directly related to vitamin D levels? Am J Hum Biol 2022; 34:e23731. [PMID: 35179273 DOI: 10.1002/ajhb.23731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/15/2022] [Accepted: 02/04/2022] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Very few studies have examined the direct link between age of menarche and vitamin D level and controversial results have been reported. This study aimed to investigate the association between vitamin D and age of menarche in a group of adolescent girls in an area with plenty of sunshine. METHODS At baseline, data were collected on 722 middle schoolgirls that were randomly selected by probability proportional to size sampling method. Of this group, 598 were followed including 173 who had their menarche during the follow-up. Serum 25-hydroxyvitamin D (25OHD) was measured at baseline using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Data on potential confounders were collected at baseline from the parents using self-administered questionnaire and from schoolgirls through face-to-face interview. Multiple linear regression and time-to-event analysis were used to investigate the association between 25OHD concentration and age of menarche. RESULTS The mean (SD) age of the study group was 12.51 (0.91) years while the main (SD) age of menarche was 11.82 (1.04) years. The prevalence of vitamin D deficiency (<50 nmol/L) among schoolgirls was 91.69%. We found no evidence for the association between 25OHD levels and age of menarche before (β, .00, 95% confidence interval (CI) [-0.01, 0.01]; p = .808) or after (β, .00, 95% CI [-0.01, 0.01]; p = .765) adjusting for potential confounders. We also found no evidence for association between 25OHD status and age of menarche before (p = .424) or after (p = .356) adjusting for potential confounders. Time-to-event analysis showed no association between 25OHD level or status and age of menarche (p = .850). CONCLUSION In Middle Eastern setting, where vitamin D deficiency is common despite plenty of sunshine, vitamin D is not a major determinant of the age at menarche. Regardless of the link between vitamin D and age of menarche, there are several other health benefits of having adequate vitamin D level during childhood and adolescence.
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Affiliation(s)
- Abdullah Al-Taiar
- School of Community & Environmental Health, College of Health Sciences, Old Dominion University, Norfolk, Virginia, USA
| | - Reem Al-Sabah
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Lemia Shaban
- Department of Food Science and Nutrition, College of Life Sciences, Kuwait University, Kuwait City, Kuwait
| | - Reem Sharaf Alddin
- School of Community & Environmental Health, College of Health Sciences, Old Dominion University, Norfolk, Virginia, USA
| | - Praveen K Durgampudi
- School of Community & Environmental Health, College of Health Sciences, Old Dominion University, Norfolk, Virginia, USA
| | - Hadiza Galadima
- School of Community & Environmental Health, College of Health Sciences, Old Dominion University, Norfolk, Virginia, USA
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Marques P, Madeira T, Gama A. Menstrual cycle among adolescents: girls' awareness and influence of age at menarche and overweight. REVISTA PAULISTA DE PEDIATRIA : ORGAO OFICIAL DA SOCIEDADE DE PEDIATRIA DE SAO PAULO 2022; 40:e2020494. [PMID: 35019010 PMCID: PMC8734600 DOI: 10.1590/1984-0462/2022/40/2020494] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 04/07/2021] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To characterize the menstrual cycle (regularity and menstrual flow length), the prevalence of dysmenorrhea and self-monitoring of the cycle in students from Lisbon region, and explore the effect of chronological age, age at menarche and body mass index (BMI) on menstrual disorders. METHODS This is a cross-sectional study with 848 girls aged 12-18 years. A questionnaire about the sociodemographic context and characteristics of the menstrual cycle, and weight and height measures were assessed. BMI was classified according to International Obesity Taskforce criteria. A descriptive analysis of the variables was made, and Odds Ratios (ORs) and 95% confidence intervals (95%CIs) were determined. RESULTS Mean age at menarche was 12.4 years and mean BMI was 22.0kg/m2. Among adolescents, 59% have regular menstrual cycle, 83% have menstrual flow length of ≤6 days. 88% suffered from dysmenorrhea, among which 8,7% declare absenteeism from school and 49% took pain medication, and 65% self-monitor their menstrual cycle. Higher maternal education was associated with a higher self-monitoring of menstrual cycle among the sample (OR 1.60; 95%CI 1.15-2.17). Girls with menarche <12 years-of-age are more likely to have menstrual flow length of >6 days (OR 1.73; 95%CI 1.19-2.51) and dysmenorrhea (OR 1.87; 95%CI 1.11-3.16) than those with menarche ≥12 years-of-age. No significant association between BMI and menstrual cycle variables was observed. CONCLUSIONS The results suggest that menstrual disorders are frequent and may be associated with early menarche, but not with BMI. It is important to encourage self-monitoring of the menstrual cycle to detect menstrual disorders timely and promote health and well-being.
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Affiliation(s)
- Patrícia Marques
- Research Centre for Anthropology and Health, University of Coimbra, Coimbra, Portugal
| | - Tiago Madeira
- Research Centre for Anthropology and Health, University of Coimbra, Coimbra, Portugal
| | - Augusta Gama
- Research Centre for Anthropology and Health, University of Coimbra, Coimbra, Portugal
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Liu M, Cao B, Luo Q, Wang Q, Liu M, Liang X, Wu D, Li W, Su C, Chen J, Gong C. The critical BMI hypothesis for puberty initiation and the gender prevalence difference: Evidence from an epidemiological survey in Beijing, China. Front Endocrinol (Lausanne) 2022; 13:1009133. [PMID: 36387887 PMCID: PMC9641365 DOI: 10.3389/fendo.2022.1009133] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/11/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Although previous studies suggested that there is a certain level of body fat mass before puberty can be initiated, most studies have focused on girls. OBJECTIVE To investigate the relationship between precocious puberty and physical growth in school-aged children in Beijing, China. METHODS 7590 Chinese children (3591 girls and 3999 boys) aged 6-11 years were recruited in Beijing, China. Body mass index (BMI) categories were defined by WHO Child Growth Standards and central obesity were defined by sex-specific waist-to-height ratio cut-offs (≥0.46 for girls, ≥0.48 for boys). Sexual development was assessed using Tanner criteria. RESULTS The prevalence of general obesity and central obesity among boys was higher than that in girls. Girls had a significantly higher precocious puberty rate than boys (5.93% vs. 0.87%), particularly in those aged 7 years old (9.20%). Children in the general obesity and central obesity groups have a higher prevalence of precocious puberty and earlier median ages for the attainment of Tanner B2/T2. For girls with Tanner stages≥II at 6-year-old and 7-year-old, the mean BMI was equivalent to the 50th centile of a normal 9.9-year-old and 11.9-year-old girl, respectively. The mean BMI of boys with Tanner stages≥II at 7-year-old and 8-year-old was correspondent to the 50th centile of a normal 14-year-old and 15.3-year-old boy, respectively. For girls, general obesity appears to contribute to the risk of the development of precocious puberty to a greater extent than central obesity does. For boys, central obesity, but not general obesity, was an independent risk factor for precocious puberty. CONCLUSIONS The prevalence of childhood obesity and precocious puberty was high in China. Precocious puberty was correlated with a large BMI. Boys had a higher threshold of BMI for puberty development than girls. Children with precocious puberty, particularly those with central obesity, should be aware of adverse cardiovascular events.
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Affiliation(s)
- Meijuan Liu
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Bingyan Cao
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Qipeng Luo
- Department of Pain Medicine, Peking University Third Hospital, Beijing, China
| | - Qiao Wang
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Min Liu
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Xuejun Liang
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Di Wu
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Wenjing Li
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Chang Su
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Jiajia Chen
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Chunxiu Gong
- Department of Endocrinology, Genetics and Metabolism, National Center for Children’s Health, Beijing Children’s Hospital, Capital Medical University, Beijing, China
- *Correspondence: Chunxiu Gong,
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Deardorff J, Reeves JW, Hyland C, Tilles S, Rauch S, Kogut K, Greenspan LC, Shirtcliff E, Lustig RH, Eskenazi B, Harley K. Childhood Overweight and Obesity and Pubertal Onset Among Mexican-American Boys and Girls in the CHAMACOS Longitudinal Study. Am J Epidemiol 2022; 191:7-16. [PMID: 33831178 DOI: 10.1093/aje/kwab100] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 12/16/2022] Open
Abstract
Secular trends in earlier initiation of puberty have been observed in recent decades. One risk factor appears to be increases in adiposity, as measured by body mass index. This trend is particularly notable among Latino populations, who have higher rates of overweight/obesity compared with non-Latino White youth. Previous research has focused primarily on White girls, resulting in data gaps regarding male puberty and among potentially high-risk populations. Using data from the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) study, we examined body mass index at age 5 years (2005-2006) and multiple markers of pubertal onset, assessed repeatedly and longitudinally at 7 in-person visits, starting at age 9 and continuing through age 14 (2009-2015), among 336 Mexican Americans in Salinas, California. We observed no associations among boys, but found significantly earlier thelarche in overweight (HR = 1.7, 95% CI: 1.1, 2.7) and obese girls (HR = 1.5, 95% CI: 1.0, 2.4), menarche in overweight girls (HR = 1.6; CI: 1.0, 2.4), and pubarche in obese girls (HR = 1.9; CI: 1.2, 3.0), compared with normal-weight girls. This study examined an understudied population and included key covariates, such as birth weight and early adverse events, which are typically omitted in studies.
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Siegel EL, Kezios KL, Houghton L, Pereira-Eshraghi C, Cirillo P, Cohn BA, Factor-Litvak P. Could maternal thyroid function during pregnancy affect daughters' age at menarche through child growth? A mediation analysis. Reprod Toxicol 2022; 107:33-39. [PMID: 34808459 PMCID: PMC8760156 DOI: 10.1016/j.reprotox.2021.11.004] [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: 09/24/2021] [Revised: 11/04/2021] [Accepted: 11/11/2021] [Indexed: 01/03/2023]
Abstract
Early menarche is associated with adverse health outcomes during adolescence as well as breast and other reproductive cancers later in adulthood. However, the causes of early menarche and the pathways through which they operate are not fully understood. Though maternal thyroid function during pregnancy affects child growth, and rapid childhood growth is associated with a decreased age at menarche, the relationship between prenatal maternal thyroid function and daughters' age at menarche has not been examined. We conducted a mediation analysis in a historical cohort of 260 mother-child pairs to estimate the total and indirect effects of maternal prenatal thyroid function on daughters' age at menarche. No association was observed between thyroid stimulating hormone (TSH) or anti-thyroid peroxidase antibodies (ATPO) and daughters' age at menarche. Using a sample-specific, a-priori cutoff at the 10th percentile, low levels of maternal free thyroxine (FT4) were associated with earlier daughter age at menarche, with a hazard ratio (95 % CI) of 1.70 (1.02, 2.84) comparing the bottom 10th percentile with the top 90th percentile of exposure levels. Higher maternal FT4 was associated with rapid child weight gain from ages 5-9, and rapid child weight gain from ages 5-9 was associated with earlier age at menarche; the estimated indirect effect of this pathway was null. While maternal FT4 is associated with earlier age at menarche in daughters, this is not mediated by rapid weight gain in our study population, suggesting that maternal FT4 is operating through a different pathway.
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Affiliation(s)
- Eva L Siegel
- Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY, USA, 10032,corresponding author: . 722 W 168th St. New York, NY, 10032
| | - Katrina L Kezios
- Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY, USA, 10032
| | - Lauren Houghton
- Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY, USA, 10032
| | - Camila Pereira-Eshraghi
- Department of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, 622 W 168th St, New York, NY, USA, 10032
| | - Piera Cirillo
- Child Health and Development Studies, Center for Research on Women’s and Children’s Health, Public Health Institute, 555 12th Street, Suite 290, Oakland, CA, USA, 94607
| | - Barbara A Cohn
- Child Health and Development Studies, Center for Research on Women’s and Children’s Health, Public Health Institute, 555 12th Street, Suite 290, Oakland, CA, USA, 94607
| | - Pam Factor-Litvak
- Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY, USA, 10032
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Leal FA, Gonçalves GD, Soncini JGM, Staurengo-Ferrari L, Fattori V, Verri Jr WA, Scarano WR, Fernandes GS. Exposure to aluminium chloride during the peripuberal period induces prostate damage in male rats. Acta Histochem 2022; 124:151843. [PMID: 35021147 DOI: 10.1016/j.acthis.2022.151843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/17/2021] [Accepted: 01/04/2022] [Indexed: 11/27/2022]
Abstract
Aluminium (Al) is an important metal, but it can be toxic including for prostate tissue. This study aimed to evaluate whether exposure to aluminium chloride (AlCl3) during the peripubertal period affects ventral prostate development in rats. Male Wistar rats (30 days old) were distributed into three experimental groups: control (sterile 0.9% saline solution), AL7 (7 mg AlCl3/kg) and AL34 (34 mg AlCl3/kg). Animals were treated intraperitoneally from postnatal day (PND) 36-66 (peripubertal period). At PND67, the animals were anaesthetized and euthanized. Blood was collected for testosterone levels. The ventral prostate (VP) was removed, weighed and processed for histochemistry and immunohistochemistry to detect androgen (AR) and Ki67. Stereological and histopathological analyses, mast cell counts, and determinations of myeloperoxidase (MPO) and N-acetyl glycosidase (NAG) activity and IL-6 levels were performed. The AL34 group presented a reduction in body weight and increase in MPO activity compared to the other groups. In both the AL7 and AL34 groups, there was reorganization of the prostatic tissue compartments. There was no significant difference in prostate weight, number of granulated or degranulated mast cells, or testosterone levels. In conclusion, the exposure to aluminium chloride during the peripubertal period impairs the prostatic development.
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Role of Sex Hormones at Different Physiobiological Conditions and Therapeutic Potential in MBD2 Mediated Severe Asthma. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7097797. [PMID: 35096261 PMCID: PMC8799366 DOI: 10.1155/2021/7097797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/29/2021] [Indexed: 12/16/2022]
Abstract
Sex hormone has become a “hot topic” to evaluate the hormonal therapeutic potential in severe asthma. Th17 cell is one of the main influencing factors involved in the pathogenesis of severe asthma, hence also called as kernel of severe asthma, and Th17 subtype of non-T2 asthma is less responsive (resistance) to inhaled corticosteroid (ICS), so severe in nature. Methyl-CpG binding domain protein 2 (MBD2) is overexpressed and regulates the Th17 differentiation, showing the possibility of therapeutic target in treating Th17 mediated severe asthma. Sex hormone fluctuates at the different physiobiological conditions of the human body and affects the asthma pathobiology showing its role in asthma prevalence, severity, remission, and therapy. This review briefly overviews the sex hormones, their influence in asthma at the different physiobiological conditions of human body, and MBD2 severe asthma connection with the possible therapeutic potential of sex steroids in MBD2 mediated Th17 predominant severe asthma. Male sex hormone tends to show a beneficial effect and possibly downregulates the expression of Th17 cells via regulating MBD2 through a mechanism distinct from corticosteroid treatment and guides us towards discovery of new therapeutic agent, reduces the asthma-related complications, and promotes long-term survival by lowering the risk of therapy-resistant issues of old age severe asthma.
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Calcaterra V, Verduci E, Magenes VC, Pascuzzi MC, Rossi V, Sangiorgio A, Bosetti A, Zuccotti G, Mameli C. The Role of Pediatric Nutrition as a Modifiable Risk Factor for Precocious Puberty. Life (Basel) 2021; 11:1353. [PMID: 34947884 PMCID: PMC8706413 DOI: 10.3390/life11121353] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 12/19/2022] Open
Abstract
Puberty is a critical phase of growth and development characterized by a complex process regulated by the neuroendocrine system. Precocious puberty (PP) is defined as the appearance of physical and hormonal signs of pubertal development at an earlier age than is considered normal. The timing of puberty has important public health, clinical, and social implications. In fact, it is crucial in psychological and physical development and can impact future health. Nutritional status is considered as one of the most important factors modulating pubertal development. This narrative review presents an overview on the role of nutritional factors as determinants of the timing of sexual maturation, focusing on early-life and childhood nutrition. As reported, breast milk seems to have an important protective role against early puberty onset, mainly due to its positive influence on infant growth rate and childhood overweight prevention. The energy imbalance, macro/micronutrient food content, and dietary patterns may modulate the premature activation of the hypothalamic-pituitary-gonadal axis, inducing precocious activation of puberty. An increase in knowledge on the mechanism whereby nutrients may influence puberty will be useful in providing adequate nutritional recommendations to prevent PP and related complications.
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Affiliation(s)
- Valeria Calcaterra
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
- Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia, 27100 Pavia, Italy
| | - Elvira Verduci
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
- Department of Health Sciences, University of Milan, 20142 Milan, Italy
| | - Vittoria Carlotta Magenes
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
| | - Martina Chiara Pascuzzi
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
| | - Virginia Rossi
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
| | - Arianna Sangiorgio
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
| | - Alessandra Bosetti
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
| | - Gianvincenzo Zuccotti
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
- Department of Biomedical and Clinical Science “L. Sacco”, University of Milan, 20157 Milan, Italy
| | - Chiara Mameli
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.); (V.C.M.); (M.C.P.); (V.R.); (A.S.); (A.B.); (G.Z.); (C.M.)
- Department of Biomedical and Clinical Science “L. Sacco”, University of Milan, 20157 Milan, Italy
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Carwile JL, Seshasayee SM, Aris IM, Rifas-Shiman SL, Claus Henn B, Calafat AM, Sagiv SK, Oken E, Fleisch AF. Prospective associations of mid-childhood plasma per- and polyfluoroalkyl substances and pubertal timing. ENVIRONMENT INTERNATIONAL 2021; 156:106729. [PMID: 34171588 PMCID: PMC8380705 DOI: 10.1016/j.envint.2021.106729] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 05/29/2023]
Abstract
BACKGROUND Exposure to per- and polyfluoroalkyl substances (PFAS) may disrupt pubertal timing. Higher PFAS plasma concentrations have been associated with later pubertal timing in girls, but cross-sectional findings may be explained by reverse causation. OBJECTIVES To assess prospective associations between PFAS plasma concentrations in mid-childhood and markers of pubertal timing in male and female adolescents. METHODS We studied 640 children in Project Viva, a Boston-area prospective cohort. We examined associations of plasma concentrations of 6 PFAS measured at mean 7.9 (SD 0.8) years (2007-2010) with markers of pubertal timing. Parents reported a 5-item pubertal development score at early adolescence (mean 13.1 (SD 0.8) years) and reported age at menarche annually. We calculated age at peak height velocity using research and clinical measures of height. We used sex-specific linear and Cox proportional hazards regression to estimate associations of single PFAS with outcomes, and we used Bayesian Kernel Machine Regression (BKMR) to estimate associations of the PFAS mixture with outcomes. RESULTS Plasma concentrations were highest for perfluorooctane sulfonate (PFOS) [median (IQR) 6.4(5.6) ng/mL], followed by perfluorooctanoate (PFOA) [4.4(3.0) ng/mL]. In early adolescence, girls were further along in puberty than boys [pubertal development score mean (SD) 2.9 (0.7) for girls and 2.2(0.7) for boys; age at peak height velocity mean (SD) 11.2y (1.0) for girls and 13.1y (1.0) for boys]. PFAS was associated with later markers of pubertal timing in girls only. For example, each doubling of PFOA was associated with lower pubertal development score (-0.18 units; 95% CI: -0.30, -0.06) and older age at peak height velocity (0.23 years; 95% CI: 0.06, 0.40)]. We observed similar associations for PFOS, perfluorodecanoate (PFDA), and the PFAS mixture. PFAS plasma concentrations were not associated with age at menarche or markers of pubertal timing in boys. DISCUSSION Higher PFAS plasma concentrations in mid-childhood were associated with later onset of puberty in girls.
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Affiliation(s)
- Jenny L Carwile
- Center for Outcomes Research and Evaluation, Maine Medical Center Research Institute, Portland, ME, USA.
| | - Shravanthi M Seshasayee
- Center for Outcomes Research and Evaluation, Maine Medical Center Research Institute, Portland, ME, USA
| | - Izzuddin M Aris
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Sheryl L Rifas-Shiman
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Antonia M Calafat
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Sharon K Sagiv
- Division of Epidemiology, University of California, Berkeley School of Public Health, Berkeley, CA, USA
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Abby F Fleisch
- Center for Outcomes Research and Evaluation, Maine Medical Center Research Institute, Portland, ME, USA; Pediatric Endocrinology and Diabetes, Maine Medical Center, Portland, ME, USA
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Bruun MR, Ernst A, Arendt LH, Ramlau-Hansen CH, Brix N. Nausea During Pregnancy and Timing of Pubertal Development in Sons and Daughters: A Population-Based Cohort Study. Clin Epidemiol 2021; 13:895-905. [PMID: 34621134 PMCID: PMC8491783 DOI: 10.2147/clep.s324805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/31/2021] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The objective of this study was to explore whether maternal nausea in pregnancy, a potential surrogate marker of endogenous estrogen levels, was associated with age at attaining pubertal milestones in sons and daughters. MATERIALS AND METHODS The study included a total of 14,612 boys and girls born in 2000-2003, from the Danish National Birth Cohort. Information on nausea was reported by mothers during pregnancy in telephone interviews scheduled around gestational week 12 and 30. Their children were invited every six months from 11 years of age until 18 years of full maturation to provide information on current pubertal status. Pubertal milestones included pubic hair, axillary hair and acne for both sexes, besides genital development, voice break and first ejaculation for boys, and breast development and menarche for girls. Mean monthly differences in age at attaining several pubertal milestones for boys and girls were estimated according to duration of nausea in the first trimester (0, 1-6, 7-11, 12 weeks). Further, we explored whether duration of nausea in the first two trimesters (0, 1-8, 9-15 or 16-28 weeks) and severity (measured by co-existence of vomiting and weight loss) were associated with pubertal timing. RESULTS Neither maternal nausea in the first trimester nor duration or severity of nausea in the first two trimesters were associated with pubertal timing. CONCLUSION Our study does not support the hypothesis that nausea in pregnancy - as a surrogate marker of endogenous estrogen levels - is associated with age at attaining pubertal milestones in children.
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Affiliation(s)
- Mette Rahbek Bruun
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark
| | - Andreas Ernst
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark
- Department of Urology, Aarhus University Hospital, Aarhus, Denmark
| | - Linn Håkonsen Arendt
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark
- Department of Obstetrics and Gynecology, Regional Hospital Horsens, Horsens, Denmark
| | | | - Nis Brix
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
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Bo T, Wen J, Gao W, Tang L, Liu M, Wang D. Influence of HFD-induced precocious puberty on neurodevelopment in mice. Nutr Metab (Lond) 2021; 18:86. [PMID: 34530850 PMCID: PMC8447761 DOI: 10.1186/s12986-021-00604-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 07/29/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Precocious puberty is frequently associated with obesity, which will lead to long-term effects, especially on growth and reproduction. However, the effect of precocious puberty on children's neurodevelopment is still unknown. OBJECTIVES Here we evaluated the effect of High fat diet (HFD)-induced precocious puberty on neurodevelopment and behaviors of animals. METHODS Ovaries sections were stained with hematoxylin-eosin (H&E) using standard techniques. Behavioral tests included elevated plus maze (EPM), open field exploration, Y-Maze, marble burying test, and novelty- suppressed feeding. The expression of genes related to puberty and neural development was detected by immunohistochemistry and Western blot. RESULTS Our results showed HFD-induced precocious puberty increased the risk-taking behavior and decreased memory of mice. The content of Tyrosine hydroxylase (TH) and Arginine vasopressin (AVP) in hypothalamus were higher in HFD group than control group. Although the recovery of normal diet will gradually restore the body fat and other physiological index of mice, the anxiety increases in adult mice, and the memory is also damaged. CONCLUSIONS These findings describe the sensitivity of mice brain to HFD-induced precocious puberty and the irrecoverability of neural damage caused by precocious puberty. Therefore, avoiding HFD in childhood is important to prevent precocious puberty and neurodevelopmental impairment in mice.
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Affiliation(s)
- Tingbei Bo
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Wen
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Wenting Gao
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liqiu Tang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Min Liu
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dehua Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China. .,School of Life Science, Shandong University, Qingdao, 266237, China. .,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Hvidt JJ, Brix N, Ernst A, Lunddorf LLH, Ramlau-Hansen CH. Breast feeding and timing of puberty in boys and girls: A nationwide cohort study. Paediatr Perinat Epidemiol 2021; 35:578-589. [PMID: 34080724 DOI: 10.1111/ppe.12767] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 02/25/2021] [Accepted: 03/01/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Breast feeding has been associated with improved infant health, but its impact on pubertal timing remains uncertain, particularly in boys. OBJECTIVE The objective of this study was to investigate the association between duration of breast feeding and pubertal timing in boys and girls. METHODS This population-based cohort study included 13 511 boys and girls from the Puberty Cohort nested within the Danish National Birth Cohort. The children gave half-yearly, self-reported information on pubertal development through questionnaires (Tanner stages, age at menarche, first ejaculation, voice break, axillary hair growth, and acne). Information on breast feeding was provided by the mothers when the children were 6 months of age. We estimated mean differences (in months) in age at attaining each pubertal marker and for overall timing of puberty (combined estimate) for every additional month of exclusive breast feeding. Furthermore, we estimated differences in pubertal age when comparing children never exclusively breastfed and exclusively breastfed <4 months using children exclusively breastfed ≥4 months as reference. In sub-analyses, we further adjusted for infant weight gain and childhood BMI at 7 years to investigate whether these variables mediated the association. RESULTS Boys tended to reach pubertal markers later for every additional month of exclusive breast feeding (combined estimate: 0.2 (95% confidence interval [CI] 0.0, 0.4 months). Never exclusively breastfed boys reached pubertal markers earlier than the boys exclusively breastfed ≥4 months (combined estimate: -4.1 (95% CI -6.7, -1.6) months). Boys exclusively breastfed <4 months also reached pubertal markers earlier than those never exclusively breastfed but with smaller differences. In girls, duration of breast feeding was not associated with pubertal development. When including infant weight gain or childhood BMI, the results remained essentially unchanged. CONCLUSIONS Shorter duration of exclusive breast feeding was associated with earlier pubertal development in boys but not in girls.
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Affiliation(s)
- Julie J Hvidt
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark
| | - Nis Brix
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark.,Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
| | - Andreas Ernst
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark.,Department of Urology, Aarhus University Hospital, Aarhus, Denmark
| | - Lea L H Lunddorf
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark
| | - Cecilia H Ramlau-Hansen
- Department of Public Health, Research Unit for Epidemiology, Aarhus University, Aarhus, Denmark
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69
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Abstract
Onset of puberty, as defined by breast stage 2, appears to be starting at younger ages since the 1940s. There is an ongoing controversy regarding what is normative, as well as what is normal, and the evaluation that is deemed necessary for girls maturing before 8 years of age. There are potential implications of earlier pubertal timing, including psychosocial consequences during adolescence, as well as longer term risks, such as breast cancer and cardiometabolic risks. There are additional consequences derived from slower pubertal tempo, for age of menarche has not decreased as much as age of breast development; these include longer interval between sexual initiation and intentional childbearing, as well as a broadened window of susceptibility to endocrine-related cancers.
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Affiliation(s)
- Colby E Smith
- Division of Adolescent and Transition Medicine, Cincinnati Children's Hospital Medical Center
| | - Frank M Biro
- Division of Adolescent and Transition Medicine, Cincinnati Children's Hospital Medical Center.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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70
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Duffy KA, Bale TL, Epperson CN. Germ Cell Drivers: Transmission of Preconception Stress Across Generations. Front Hum Neurosci 2021; 15:642762. [PMID: 34322003 PMCID: PMC8311293 DOI: 10.3389/fnhum.2021.642762] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 06/10/2021] [Indexed: 11/13/2022] Open
Abstract
Exposure to stress can accelerate maturation and hasten reproduction. Although potentially adaptive, the trade-off is higher risk for morbidity and mortality. In humans, the intergenerational effects of stress have been demonstrated, but the precise mechanisms are unknown. Strikingly, even if parental stress occurs prior to conception, as adults, their offspring show worse mental and physical health. Emerging evidence primarily from preclinical models suggests that epigenetic programming may encode preconception stress exposures in germ cells, potentially impacting the phenotype of the offspring. In this narrative review, we evaluate the strength of the evidence for this mechanism across animals and humans in both males and females. The strongest evidence comes from studies of male mice, in which paternal preconception stress is associated with a host of phenotypic changes in the offspring and stress-induced changes in the small non-coding RNA content in sperm have been implicated. Two recent studies in men provide evidence that some small non-coding RNAs in sperm are responsive to past and current stress, including some of the same ones identified in mice. Although preliminary evidence suggests that findings from mice may map onto men, the next steps will be (1) considering whether stress type, severity, duration, and developmental timing affect germ cell epigenetic markers, (2) determining whether germ cell epigenetic markers contribute to disease risk in the offspring of stress-exposed parents, and (3) overcoming methodological challenges in order to extend this research to females.
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Affiliation(s)
- Korrina A. Duffy
- Colorado Center for Women’s Behavioral Health and Wellness, Department of Psychiatry, University of Colorado School of Medicine, Aurora, CO, United States
| | - Tracy L. Bale
- Center for Epigenetic Research in Child Health and Brain Development, Department of Pharmacology and Psychiatry, University of Maryland School of Medicine, Baltimore, MD, United States
| | - C. Neill Epperson
- Colorado Center for Women’s Behavioral Health and Wellness, Department of Psychiatry, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Family Medicine, University of Colorado School of Medicine, Aurora, CO, United States
- Center for Women’s Health Research, University of Colorado School of Medicine, Aurora, CO, United States
- Helen and Arthur E. Johnson Depression Center, University of Colorado School of Medicine, Aurora, CO, United States
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71
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Yang H, Luo S, Liang X, Lin Q, Cheng T, Zeng L, Tang F, Wu D. The association between family impact and health-related quality of life of children with idiopathic central precocious puberty in Chongqing, China. Health Qual Life Outcomes 2021; 19:171. [PMID: 34174889 PMCID: PMC8236152 DOI: 10.1186/s12955-021-01805-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Idiopathic central precocious puberty (ICPP) reduces patient health-related quality of life (HRQoL). The impacts of disease and treatment on families are also an important concern. This study aimed to assess the association between family impact and HRQoL of children with ICPP. METHODS We conducted a case-control study in Chongqing, China. A case group of 134 children with ICPP aged 5-12 years and their caregivers was recruited from a children's hospital in Chongqing. A total of 210 gender- and age-matched subjects from two primary schools were selected as controls. PedsQLTM4.0 Generic Core Scales (GCS) and PedsQL™ Family Impact Module (FIM) were used in this study. RESULTS Children with ICPP scored lower than controls in all HRQoL domains except physical functioning. In particular, the two groups were significantly different in emotional functioning scores (d = 0.414, P < 0.001). Compared with controls, ICPP families had lower scores in all dimensions of the FIM scale (d = 0.288-1.030, all P < 0.05). Factors associated with HRQoL of ICPP patients included: age of patients, type of medical treatment, employment status of caregivers, educational level of caregivers, parent HRQoL and family functioning (all P < 0.05). CONCLUSIONS Children with ICPP demonstrated lower quality of life and greater family impact compared to healthy controls. In addition, less impact of disease on parent HRQoL and family functioning was associated with better HRQoL of ICPP patients, patients aged older, treated with drug combination, cared by employed or well-educated caregivers reported better HRQoL. Health care professionals should pay more attention to younger patients treated with GnRHa alone, and provide targeted interventions for caregivers depending on their demographic background to reduce family impact and thereby improve patient HRQoL.
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Affiliation(s)
- Hong Yang
- Department of General Medicine, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Jinyu Avenue No. 20, Yubei, Chongqing, 400010, China
| | - Shunqing Luo
- Department of General Medicine, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Jinyu Avenue No. 20, Yubei, Chongqing, 400010, China.
| | - Xiaohua Liang
- Clinical Epidemiology and Biostatistics Department, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, China International Science and Technology Cooperation Center of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Zhongshan 2nd Road No. 136, Yuzhong, Chongqing, 400016, China.
| | - Qin Lin
- Department of Endocrinology and Internal Medicine, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Zhongshan 2nd Road No. 136, Yuzhong, Chongqing, 400016, China
| | - Ting Cheng
- Department of General Medicine, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Jinyu Avenue No. 20, Yubei, Chongqing, 400010, China
| | - Li Zeng
- Department of General Medicine, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Jinyu Avenue No. 20, Yubei, Chongqing, 400010, China
| | - Fang Tang
- Department of General Medicine, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Jinyu Avenue No. 20, Yubei, Chongqing, 400010, China
| | - Di Wu
- Department of General Medicine, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Jinyu Avenue No. 20, Yubei, Chongqing, 400010, China
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Liang Z, Ma H, Song Q, Sun D, Zhou T, Heianza Y, Chen D, Qi L. Joint Associations of Actual Age and Genetically Determined Age at Menarche With Risk of Mortality. JAMA Netw Open 2021; 4:e2115297. [PMID: 34190994 PMCID: PMC8246309 DOI: 10.1001/jamanetworkopen.2021.15297] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
IMPORTANCE Previous studies have shown an association between actual age at menarche and risk of all-cause mortality; however, the results are inconsistent, and no study has analyzed the joint associations between genetic susceptibility and actual age at menarche with the risk of mortality in prospective cohorts. OBJECTIVES To investigate joint associations of actual age and genetically determined age at menarche with risk of all-cause mortality. DESIGN, SETTING, AND PARTICIPANTS This prospective cohort study was conducted using data from the UK Biobank population across the United Kingdom from March 13, 2006, to October 1, 2010. A total of 264 546 women aged between 39 and 71 years with actual menarcheal age were included in this study; 246 676 of these women had genetic data available. Actual age at menarche was obtained from the touchscreen questionnaire at recruitment from 2006 to 2010. Genetically determined age at menarche was assessed by a genetic risk score. Statistical analysis was performed from August 22 to December 12, 2019. EXPOSURE Age at menarche. MAIN OUTCOMES AND MEASURES A multivariable Cox proportional hazards regression model was used to assess associations of actual or genetically determined age at menarche with risk of all-cause mortality. RESULTS The mean (SD) age of the study population at baseline was 56.4 (8.0) years, and the mean (SD) age at menarche included in the analyses was 13.0 (1.6) years. During a median of 9.0 years (range, 8.3-9.7 years) of follow-up, 7761 deaths were documented among the women with actual age at menarche, and 7054 deaths were documented among the women with genetically determined age at menarche. Both the actual age at menarche and the genetically determined age at menarche showed a U-shaped association with the risk of all-cause mortality (lowest actual age [<12 years] vs reference age [15 years]: hazard ratio [HR], 1.16 [95% CI, 1.07-1.26]; highest actual age [≥16 years] vs reference age [15 years]: HR, 1.17 [95% CI, 1.05-1.31]; P < .001 for quadratic trend; genetic risk score [GRS] of 1 vs reference score [GRS of 4]: HR, 1.10 [95% CI, 1.01-1.19; GRS of 6 vs reference score [GRS of 4]: HR, 1.09 [95% CI, 1.00-1.18]; P = .03 for quadratic trend). Significant interactions were also found between actual age at menarche and genetically determined age at menarche with all-cause mortality (HR of mortality associated with age of menarche <12 year was 1.24 [95% CI, 1.10-1.40] in the GRS of 1 group and 1.44 [95% CI, 1.21-1.72] in the GRS of 6 group; P = .001 for interaction). Women with mismatch of actual age and genetically determined age at menarche had the highest mortality risks; participants with the lowest genetic risk score and the highest age at menarche had an HR of 2.12 (95% CI, 1.58-2.83), and participants with the highest GRS and the lowest age at menarche had an HR of 1.44 (95% CI, 1.21-1.72). CONCLUSIONS AND RELEVANCE The results suggest that both actual age and genetically determined age at menarche exhibit U-shaped associations with all-cause mortality. Women with mismatch of actual age and genetically determined age at menarche may have the highest risk of all-cause mortality.
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Affiliation(s)
- Zhaoxia Liang
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
- Department of Obstetrics and Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Hao Ma
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Qiying Song
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
- Department of Maternal and Child Health, School of Public Health, Peking University, Beijing, China
| | - Dianjianyi Sun
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Tao Zhou
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Yoriko Heianza
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Danqing Chen
- Department of Obstetrics and Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Lu Qi
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
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Wang G, Tang WY, Ji H, Wang X. Prenatal exposure to mercury and precocious puberty: a prospective birth cohort study. Hum Reprod 2021; 36:712-720. [PMID: 33367618 DOI: 10.1093/humrep/deaa315] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 10/19/2020] [Indexed: 11/15/2022] Open
Abstract
STUDY QUESTION Is in utero exposure to mercury associated with the risk of precocious puberty? SUMMARY ANSWER Prenatal exposure to high levels of mercury was associated with increased risk of precocious puberty, which was strengthened by concomitant maternal cardiometabolic conditions and adverse birth outcomes. WHAT IS KNOWN ALREADY The developing fetus is sensitive to mercury, a well-known endocrine disruptor which impacts the endocrine and reproductive system. STUDY DESIGN, SIZE, DURATION This study included 1512 mother-child pairs from the Boston Birth Cohort, a longitudinal cohort which recruited at birth and followed prospectively up to 21 years of age. PARTICIPANTS/MATERIALS, SETTING, METHODS Mother-child pairs, from a predominantly urban minority population, were enrolled from 2002 to 2013. Prenatal exposure was assessed by maternal mercury concentration in red blood cells (RBCs) collected at 1-3 days after delivery. Precocious puberty was defined based on International Classification of Disease codes. Cox proportional hazards models were applied to the association between maternal mercury concentrations and the risk of precocious puberty. MAIN RESULTS AND THE ROLE OF CHANCE The median (interquartile range) of maternal mercury concentrations among children with and without precocious puberty were 3.4 (1.9-4.6) µg/l and 2.0 (1.0-3.7) µg/l, respectively. Compared to those in the lowest tertile for mercury, the highest tertile was associated with increased risk of precocious puberty, with an adjusted hazard ratio (HR) of 2.41, 95% CI: 1.16-5.03. In addition, concomitant maternal cardiometabolic conditions and adverse birth outcomes strengthened the effects of mercury on the risk of precocious puberty. The highest risk of precocious puberty was observed among children who had adverse birth outcomes and whose mothers had high RBC-mercury concentrations along with cardiometabolic conditions, with an HR of 4.76 (95% CI: 1.66-13.60) compared to children with favorable profiles of all three risk factors. LIMITATIONS, REASONS FOR CAUTION Precocious puberty was defined based on medical records, not on a direct assessment, which may have led to underdiagnosis and the inability to make a subclassification. The study included a predominately urban, low-income, minority population and as such our findings may not be widely generalizable. WIDER IMPLICATIONS OF THE FINDINGS Prenatal Hg exposure was associated with an increased risk of precocious puberty. This risk was strengthened by concomitant maternal cardiometabolic conditions during pregnancy and adverse birth outcomes. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the NIH/National Institute of Environmental Health Sciences, NIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development and the Health Resources and Services Administration of the U.S. Department of Health and Human Services. The authors declare no conflicts of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Guoying Wang
- Department of Population, Family and Reproductive Health, Center on the Early Life Origins of Disease, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Wan-Yee Tang
- Department of Environmental Health and Engineering, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.,Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Hongkai Ji
- Department of Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Xiaobin Wang
- Department of Population, Family and Reproductive Health, Center on the Early Life Origins of Disease, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.,Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Goldberg M, Ciesielski Jones AJ, McGrath JA, Barker-Cummings C, Cousins DS, Kipling LM, Meadows JW, Kesner JS, Marcus M, Monteilh C, Sandler DP. Urinary and salivary endocrine measurements to complement Tanner staging in studies of pubertal development. PLoS One 2021; 16:e0251598. [PMID: 33984062 PMCID: PMC8118248 DOI: 10.1371/journal.pone.0251598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/28/2021] [Indexed: 11/24/2022] Open
Abstract
Background Many studies investigating pubertal development use Tanner staging to assess maturation. Endocrine markers in urine and saliva may provide an objective, sensitive, and non-invasive method for assessing development. Objective Our objective was to examine whether changes in endocrine levels can indicate the onset of pubertal development prior to changes in self-rated Tanner stage. Methods Thirty-five girls and 42 boys aged 7 to 15 years were enrolled in the Growth and Puberty (GAP) study, a longitudinal pilot study conducted from 2007–2009 involving children of women enrolled in the Agricultural Health Study (AHS) in Iowa. We collected saliva and urine samples and assessed pubertal development by self-rated Tanner staging (pubic hair, breast development (girls), genital development (boys)) at three visits over six months. We measured dehydroepiandrosterone (DHEA) in saliva and creatinine-adjusted luteinizing hormone (LH), testosterone, follicle stimulating hormone (FSH), estrone 3-glucuronide (E13G) and pregnanediol 3-glucuronide (Pd3G) concentrations in first morning urine. We evaluated the relationships over time between Tanner stage and each biomarker using repeated measures analysis. Results Among girls still reporting Tanner breast stage 1 at the final visit, FSH levels increased over the 6-month follow-up period and were no longer lower than higher stage girls at the end of follow-up. We observed a similar pattern for testosterone in boys. By visit 3, boys still reporting Tanner genital stage 1 or pubic hair stage 1 had attained DHEA levels that were comparable to those among boys reporting Tanner stages 2 or 3. Conclusions Increasing concentrations of FSH in girls and DHEA and testosterone in boys over a 6-month period revealed the start of the pubertal process prior to changes in self-rated Tanner stage. Repeated, non-invasive endocrine measures may complement the more subjective assessment of physical markers in studies determining pubertal onset.
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Affiliation(s)
- Mandy Goldberg
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
- * E-mail: (MG); (DPS)
| | | | - John A. McGrath
- Social & Scientific Systems, Inc., Durham, North Carolina, United States of America
| | | | - Deborah S. Cousins
- Social & Scientific Systems, Inc., Durham, North Carolina, United States of America
| | - Lauren M. Kipling
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Juliana W. Meadows
- Division of Applied Research and Technology, National Institute for Occupational Safety & Health, Cincinnati, Ohio, United States of America
| | - James S. Kesner
- Division of Applied Research and Technology, National Institute for Occupational Safety & Health, Cincinnati, Ohio, United States of America
| | - Michele Marcus
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
- Departments of Environmental Health and Pediatrics, Emory University Schools of Public Health and Medicine, Atlanta, Georgia, United States of America
| | - Carolyn Monteilh
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
- * E-mail: (MG); (DPS)
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Luo X, Liang Y, Hou L, Wu W, Ying Y, Ye F. Long-term efficacy and safety of gonadotropin-releasing hormone analog treatment in children with idiopathic central precocious puberty: A systematic review and meta-analysis. Clin Endocrinol (Oxf) 2021; 94:786-796. [PMID: 33387371 PMCID: PMC8248422 DOI: 10.1111/cen.14410] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 12/11/2020] [Accepted: 12/13/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To investigate the long-term efficacy and safety of gonadotropin-releasing hormone analog (GnRHa) treatment in children with idiopathic central precocious puberty (CPP). METHOD The protocol was registered with International Prospective Register of Systematic Reviews (CRD42018102792). PubMed, EMBASE and the Cochrane Library were searched for eligible comparative and single-arm studies. RESULTS We identified a total of 98 studies that included 5475 individuals. The overall risk of bias of the eligible studies ranged from critical to moderate. The overall quality of evidence for each outcome ranged from very low to moderate. Evidence-based comparative studies showed that GnRHa treatment increase final adult height (FAH, cm; studies = 4, n = 242; mean difference [MD] = 4.83; 95% confidence interval [CI], 2.32 to 7.34; I2 = 49%) and decrease body mass index (BMI, kg/m2 ; studies = 3, n = 334; MD = -1.01; 95% CI, -1.64 to -0.37; I2 = 0%) in girls with idiopathic CPP compared with no treatment. The incidence of polycystic ovary syndrome (PCOS) did not significantly differ with and without GnRHa treatment (studies = 3, n = 179; risk ratio = 1.21; 95% CI, 0.46 to 3.15; I2 = 48%). The evidence for other long-term outcomes was very weak to deduce the effects of GnRHa treatment. Further, limited evidence is available on its effects in boys. CONCLUSION Compared with no treatment, evidence indicates that GnRHa treatment increase FAH and decrease BMI in girls with idiopathic CPP. GnRHa treatment did not evidently increase the risk of PCOS. However, evidence regarding other key long-term outcomes (such as infertility and malignant or metabolic diseases) was considered very weak to suggest the benefits or side effects of GnRHa treatment. Additional high-quality evidence is needed before firm conclusions can be drawn.
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Affiliation(s)
- Xiaoping Luo
- Department of PediatricsTongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yan Liang
- Department of PediatricsTongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Ling Hou
- Department of PediatricsTongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Wei Wu
- Department of PediatricsTongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yanqin Ying
- Department of PediatricsTongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Feng Ye
- Department of PediatricsTongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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Marks KJ, Howards PP, Smarr MM, Flanders WD, Northstone K, Daniel JH, Calafat AM, Sjödin A, Marcus M, Hartman TJ. Prenatal exposure to mixtures of persistent endocrine disrupting chemicals and early menarche in a population-based cohort of British girls. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 276:116705. [PMID: 33592441 PMCID: PMC8111784 DOI: 10.1016/j.envpol.2021.116705] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 01/29/2021] [Accepted: 02/05/2021] [Indexed: 05/11/2023]
Abstract
Exposure to endocrine disrupting chemicals (EDCs) is ubiquitous. EDC exposure, especially during critical periods of development like the prenatal window, may interfere with the body's endocrine system, which can affect growth and developmental outcomes such as puberty. Most studies have examined one EDC at a time in relation to disease; however, humans are exposed to many EDCs. By studying mixtures, the human experience can be more closely replicated. We investigated the association of prenatal exposure to persistent EDCs (poly- and perfluoroalkyl substances (PFAS), polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCPs)) as mixtures with early menarche among female offspring in a nested case-control study within the Avon Longitudinal Study of Parents and Children (ALSPAC) recruited in the United Kingdom in 1991-1992. Concentrations of 52 EDCs were quantified in maternal serum samples collected during pregnancy. Daughter's age at menarche was ascertained through mailed questionnaires sent annually. We used repeated holdout weighted quantile sum (WQS) regression and Bayesian kernel machine regression (BKMR) to examine the association between prenatal exposure to multiple EDCs and early menarche (<11.5 (n = 218) vs. ≥11.5 years (n = 230)) for each chemical class separately (PFAS, PCBs, and OCPs) and for all three classes combined. Models adjusted for maternal age at menarche, maternal education, parity, pre-pregnancy body mass index, maternal age, prenatal smoking, and gestational week at sample collection. Mixture models showed null associations between prenatal exposure to EDC mixtures and early menarche. Using WQS regression, the odds ratio for early menarche for a one-decile increase in chemical concentrations for all three classes combined was 0.89 (95% CI: 0.76, 1.05); using BKMR, the odds ratio when all exposures were at the 60th percentile compared to the median was 0.98 (95% CI: 0.91, 1.05). Results suggest the overall effect of prenatal exposure to persistent EDC mixtures is not associated with early menarche.
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Affiliation(s)
- Kristin J Marks
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States; National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States; Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States.
| | - Penelope P Howards
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Melissa M Smarr
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - W Dana Flanders
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States; National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Kate Northstone
- Department of Population Health Sciences, Bristol Medical School, Bristol, United Kingdom
| | - Johnni H Daniel
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Andreas Sjödin
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Michele Marcus
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States; Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Terryl J Hartman
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States; National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States
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77
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Vanacker C, Bouret SG, Giacobini P, Prévot V. [Precocious puberty and neuropilin-1 signaling in GnRH neurons]. Med Sci (Paris) 2021; 37:366-371. [PMID: 33908854 DOI: 10.1051/medsci/2021035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The survival of the species depends on two closely interlinked processes: the correct functioning of the reproductive system, and the balance between the energy needs of an individual and the supply of energy sources through feeding. These two processes are regulated in the hypothalamus, which produces neurohormones that control various physiological functions. Among these neurohormones, GnRH controls not only the maturation and function of the reproductive organs, including the ovaries and the testes, during puberty and in adulthood, but also sexual attraction. Recent evidence suggest that neuropilin-1-mediated signaling in GnRH-synthesizing neurons could be a linchpin that holds together various neuroanatomical, physiological and behavioral adaptations involved in triggering puberty and achieving reproductive function.
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Affiliation(s)
- Charlotte Vanacker
- Univ. Lille, Inserm, CHU Lille, Équipe développement et plasticité du cerveau neuroendocrine, FHU 1 000 jours pour la Santé, Lille Neuroscience et Cognition, UMR-S1172, 1 place de Verdun, 59045 Lille Cedex, France
| | - Sébastien G Bouret
- Univ. Lille, Inserm, CHU Lille, Équipe développement et plasticité du cerveau neuroendocrine, FHU 1 000 jours pour la Santé, Lille Neuroscience et Cognition, UMR-S1172, 1 place de Verdun, 59045 Lille Cedex, France
| | - Paolo Giacobini
- Univ. Lille, Inserm, CHU Lille, Équipe développement et plasticité du cerveau neuroendocrine, FHU 1 000 jours pour la Santé, Lille Neuroscience et Cognition, UMR-S1172, 1 place de Verdun, 59045 Lille Cedex, France
| | - Vincent Prévot
- Univ. Lille, Inserm, CHU Lille, Équipe développement et plasticité du cerveau neuroendocrine, FHU 1 000 jours pour la Santé, Lille Neuroscience et Cognition, UMR-S1172, 1 place de Verdun, 59045 Lille Cedex, France
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78
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de Morais Oliveira DA, Lupi LA, Silveira HS, de Almeida Chuffa LG. Protein restriction during puberty alters nutritional parameters and affects ovarian and uterine histomorphometry in adulthood in rats. Int J Exp Pathol 2021; 102:93-104. [PMID: 33729619 PMCID: PMC7981593 DOI: 10.1111/iep.12388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 11/23/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
In a large part of the population inefficient ingestion of proteins, whether for cultural, aesthetic or economic reasons, is a global concern. Low-protein diets can cause severe functional complications, mainly during the development and maturation of organs and systems, including the female reproductive system. The present study investigated the effect of nutritional protein restriction during puberty on the oestrous cycle and expression of sex steroid receptors (AR, ERα e ERβ) in ovarian and uterine tissues of adult rats. Protein restriction promoted lower body weight gain, feed efficiency and higher caloric intake. There was an increase in the oestrus phase arrest without changing the total length of the oestrous cycle. The consumption of low-protein diet also reduced the thickness of the uterine endometrium (uterine epithelium and endometrial stroma) in addition to increasing the number of primary and atretic follicles in the ovaries. Furthermore, the low-protein diet reduced the levels of androgen receptor (AR) and increased the oestrogen receptor β (ERβ) in the ovary, while no significant changes were observed in the uterus. Our study reinforces the importance of adequate protein intake during puberty, since physiological changes in this developmental period interfere with the histomorphometry of the ovaries and uteri, possibly resulting in impaired folliculogenesis and fertility in the reproductive period.
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Affiliation(s)
- Diego Augusto de Morais Oliveira
- Department of Structural and Functional BiologyInstitute of BiosciencesUNESP ‐ São Paulo State UniversityBotucatu, São PauloBrazil
- Graduate Program in NutritionInstitute of Biosciences of BotucatuUNESPSão PauloBrazil
| | - Luiz Antonio Lupi
- Department of Structural and Functional BiologyInstitute of BiosciencesUNESP ‐ São Paulo State UniversityBotucatu, São PauloBrazil
| | - Henrique Spaulonci Silveira
- Department of Structural and Functional BiologyInstitute of BiosciencesUNESP ‐ São Paulo State UniversityBotucatu, São PauloBrazil
| | - Luiz Gustavo de Almeida Chuffa
- Department of Structural and Functional BiologyInstitute of BiosciencesUNESP ‐ São Paulo State UniversityBotucatu, São PauloBrazil
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79
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Ernst A, Brix N, Lunddorf LLH, Olsen J, Ramlau-Hansen CH. Placental weight Z-score and pubertal timing: A population-based cohort study. Paediatr Perinat Epidemiol 2021; 35:206-216. [PMID: 33016465 DOI: 10.1111/ppe.12712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/08/2020] [Accepted: 06/28/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The placenta provides nutrients, oxygen, and hormonal support for adequate fetal growth and development of the hormonal axes, which are important for pubertal timing later in life. OBJECTIVES We investigated if an indicator of poor placental function, low gestational age-specific Z-score for placental weight at birth, was associated with earlier pubertal timing. METHODS The study is based on a population-based cohort of 15 195 singleton boys and girls (68% of 22 439 invited) born 20 to 43 weeks of gestation (2000-2003) nested within the Danish National Birth Cohort. Placental Z-score was estimated from data collected at birth. Between 2012 and 2018, the children returned half-yearly web-based questionnaires from age of 11 years on status of the pubertal milestones: Tanner stages, voice break, first ejaculation, menarche, acne, and axillary hair. We estimated adjusted monthly differences in mean age at attaining the pubertal milestones and pubertal timing overall with placental Z-score continuously and as restricted cubic splines. Further, we explored whether growth by birthweight Z-score and body mass index Z-score around 7 years mediated the associations. RESULTS Placental Z-score was positively associated with age at attaining most of the pubertal milestones in girls, particularly for age at menarche, but not in boys. Effect sizes were modest, and when combining all pubertal milestones, one standard deviation increase in placental Z-score was associated with 0.5 months (95% confidence interval [CI] 0.2, 0.9) later pubertal timing overall in girls. The associations in girls were largely mediated through fetal growth. CONCLUSIONS Assuming that placental Z-score correlates with placental function, these findings suggest that placental dysfunction (low placental Z-score) advances pubertal timing in girls slightly by reducing fetal growth. Future studies need to evaluate whether placental weight sufficiently captures intrauterine growth of importance for pubertal development and search for other potential candidates reflecting placental function.
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Affiliation(s)
- Andreas Ernst
- Research Unit for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark.,Section for Pediatric Urology, Department of Urology, Aarhus University Hospital, Aarhus, Denmark
| | - Nis Brix
- Research Unit for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Lea L H Lunddorf
- Research Unit for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Jørn Olsen
- Research Unit for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark.,Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
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80
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Yang B, Ostbye T, Huang X, Li Y, Fang B, Wang H, Liu Q. Maternal Age at Menarche and Pubertal Timing in Boys and Girls: A Cohort Study From Chongqing, China. J Adolesc Health 2021; 68:508-516. [PMID: 32798100 DOI: 10.1016/j.jadohealth.2020.06.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 06/08/2020] [Accepted: 06/13/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE This study explored the association of maternal age at menarche (AAM) with pubertal timing among girls and boys in Chongqing, China. METHODS Pubertal development of 1,237 children (542 girls and 695 boys) were examined half-yearly through inspection and palpation from April 2014 to June 2019. Characteristics of parents and maternal AAM were collected by a parental questionnaire at baseline. Maternal AAM was used both as a continuous and a categorical variable in Cox regression models. RESULTS A total of 1,198 children (528 girls and 670 boys) were included in the study. In the simple Cox model, earlier maternal AAM was associated with girls' earlier menarche, breast and pubic hair development, and boys' first ejaculation, testicular development, and genital development. When adjusting for children's body mass index z-scores (BMIz) and socioeconomic covariates, we found that girls whose mothers had early AAM had a higher risk of earlier onset of menarche (hazard ratio [HR]: .922, 95% confidence interval [CI]: .852-.998 for continuous maternal AAM, HR: 1.297, 95% CI: 1.041-1.616 for maternal AAM ≤13 years), and boys whose mother achieved menarche earlier experienced a higher risk of earlier onset of first ejaculation (HR: .896, 95% CI: .830-.968). Children's BMIz were related to all nine pubertal milestones. Parental education and relationship, birth weight, parity, and family type were also associated with pubertal timing. CONCLUSIONS Earlier maternal AAM was related to earlier pubertal timing in both girls and boys in Chongqing, especially girls' age at menarche and boys' first ejaculation. Children's BMIz was the most consistent factor for pubertal timing. Children's BMIz and socioeconomic conditions had greater influence on most pubertal milestones than maternal AAM.
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Affiliation(s)
- Bo Yang
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, Chongqing, China
| | - Truls Ostbye
- Department of Family Medicine & Community Health and Duke Global Health Institute, Duke University, Durham, North Carolina
| | - Xin Huang
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, Chongqing, China
| | - Yueyue Li
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, Chongqing, China
| | - Bo Fang
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, Chongqing, China
| | - Hong Wang
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, Chongqing, China
| | - Qin Liu
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, Chongqing, China.
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81
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Bacon ER, Brinton RD. Epigenetics of the developing and aging brain: Mechanisms that regulate onset and outcomes of brain reorganization. Neurosci Biobehav Rev 2021; 125:503-516. [PMID: 33657435 DOI: 10.1016/j.neubiorev.2021.02.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 02/17/2021] [Accepted: 02/23/2021] [Indexed: 12/11/2022]
Abstract
Brain development is a life-long process that encompasses several critical periods of transition, during which significant cognitive changes occur. Embryonic development, puberty, and reproductive senescence are all periods of transition that are hypersensitive to environmental factors. Rather than isolated episodes, each transition builds upon the last and is influenced by consequential changes that occur in the transition before it. Epigenetic marks, such as DNA methylation and histone modifications, provide mechanisms by which early events can influence development, cognition, and health outcomes. For example, parental environment influences imprinting patterns in gamete cells, which ultimately impacts gene expression in the embryo which may result in hypersensitivity to poor maternal nutrition during pregnancy, raising the risks for cognitive impairment later in life. This review explores how epigenetics induce and regulate critical periods, and also discusses how early environmental interactions prime a system towards a particular health outcome and influence susceptibility to disease or cognitive impairment throughout life.
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Affiliation(s)
- Eliza R Bacon
- Department of Neuroscience, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA; The Center for Precision Medicine, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Roberta Diaz Brinton
- Department of Neuroscience, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA; Center for Innovation in Brain Science, School of Medicine, University of Arizona, Tucson, AZ, 85721, USA.
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82
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Campisi SC, Humayun KN, Wasan Y, Soofi SB, Islam M, Hussain A, Shakeel A, Vandermorris A, Söder O, Bhutta ZA. The relationship between pubertal timing and under-nutrition in rural Pakistan. J Adolesc 2021; 88:58-66. [PMID: 33618265 DOI: 10.1016/j.adolescence.2021.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Sexual development in females and males are routinely measured according to the Tanner Stages. Sparse data exist on the timing of pubertal milestones in Pakistan. To fill this gap, the age of attainment of pubertal milestones and their relationship with nutritional status was explored among children and adolescents living in the rural district of Matiari, Pakistan. METHODS Anthropometry, nutrition biomarkers and Tanner Stage were assessed among girls aged 9.0-14.9 years (n = 723) and boys aged 10.0-15.9 years (n = 662) who were free from known disease in the rural District of Matiari, Pakistan. Median age was calculated for all Tanner Stages and menarche. Multivariable linear regressions were undertaken to determine covariates associated with the timing (age) of pubertal milestones. RESULTS Among participants living in this rural community, the median age of puberty onset for girls was 11.9 years (95%CI:10.9; 12.5) and boys was 12.3 years (95%CI:11.5; 12.9). Age at first menarche was 12.9 years (95%CI:12.1; 13.3). Undernutrition was widespread among adolescents in this community. Thirty-seven percent of females and 27.0% of males were stunted while 20.5% of females and 31.3% of males were thin. Only 8% (n = 58) of females and 12% (n = 78) of males were free from any nutrient deficiency with most adolescents having two or three nutrient deficiencies. CONCLUSIONS Undernutrition (stunting or thinness) was associated with relatively older ages for early puberty stages but not puberty completion. This may decrease the duration of the pubertal growth spurt and curtail potential catch-up growth that may occur during puberty. Efforts to decrease nutrient deficiencies, stunting and thinness beyond childhood should be made in rural Pakistan.
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Affiliation(s)
- Susan C Campisi
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning (PGCRL), 686 Bay Street, 11th Floor, Suite 11.9805, Toronto, ON, M5G 0A4, Canada; Department of Nutritional Sciences, University of Toronto, 1 King's Circle College, Toronto, Ontario, M5S 1A8, Canada.
| | - Khadija N Humayun
- Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan.
| | - Yaqub Wasan
- Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan.
| | - Sajid B Soofi
- Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan.
| | - Muhammad Islam
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning (PGCRL), 686 Bay Street, 11th Floor, Suite 11.9805, Toronto, ON, M5G 0A4, Canada.
| | - Amjad Hussain
- Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan.
| | - Agha Shakeel
- Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan.
| | - Ashley Vandermorris
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning (PGCRL), 686 Bay Street, 11th Floor, Suite 11.9805, Toronto, ON, M5G 0A4, Canada; Hospital for Sick Children, Division of Adolescent Medicine, 555 University Ave, Toronto, ON, M5G 1X8, Canada.
| | - Olle Söder
- Pediatric Endocrinology Division, Department of Women's and Children's Health, Tomtebodavägen 17A, Karolinska Institutet, SE-17176, Stockholm, Sweden.
| | - Zulfiqar A Bhutta
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning (PGCRL), 686 Bay Street, 11th Floor, Suite 11.9805, Toronto, ON, M5G 0A4, Canada; Department of Nutritional Sciences, University of Toronto, 1 King's Circle College, Toronto, Ontario, M5S 1A8, Canada; Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road, PO Box 3500, Karachi, 74800, Pakistan; Dalla Lana School of Public Health University of Toronto, 155 College Street, 6th Floor, Toronto, ON, M5T 3M7, Canada.
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83
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Oehme NHB, Roelants M, Bruserud IS, Madsen A, Bjerknes R, Rosendahl K, Juliusson PB. Low BMI, but not high BMI, influences the timing of puberty in boys. Andrology 2021; 9:837-845. [PMID: 33544961 DOI: 10.1111/andr.12985] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Previous studies investigating the association between weight status and onset of puberty in boys have been equivocal. It is currently unclear to what extent weight class influences puberty onset and progression. OBJECTIVES To explore the relationship between degree of sexual maturation and anthropometric measures in Norwegian boys. METHODS The following endpoints were collected in a Norwegian cross-sectional study of 324 healthy boys aged 9-16: ultrasound-determined testicular volume (USTV), total serum testosterone, Tanner pubic hair stage, height, weight, waist circumference (WC), subscapular skinfolds (SSF), and body fat percentage (%BF). Testicular volume-for-age z-scores were used to classify "early," "average," or "late" maturing boys. Ordinal logistic regression analyses with a proportional odds model were applied to analyze the association between anthropometric variables and age-adjusted degree of pubertal development, with results expressed as age-adjusted odds ratios (AOR). Cumulative incidence curves for reaching pubertal milestones were stratified by BMI. RESULTS Boys with a low BMI for age (BMIz < -1) were less likely to have reached a pubertal testicular volume (USTV ≥ 2.7 mL) or a pubertal serum level of testosterone (≥0.5 nmol/L) compared to normal weight boys (AOR 0.3, p = 0.038, AOR 0.3, p = 0.026, respectively), and entered puberty on average with a delay of approximately eight months. Boys with high BMI for age (BMIz > 1) exhibited a comparable timing as normal weight boys. The same was found for WC. Pubertal markers were not associated with SSF or %BF. CONCLUSION By examining the association between puberty and weight status classified as low, average, or high, we found that a low BMI or WC for age were associated with a less advanced pubertal development and delayed timing of puberty in boys. No significant association was observed for a high BMI or WC. Moreover, no significant effects of SSF or %BF were observed. A low weight status should also be considered when assessing pubertal development in boys.
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Affiliation(s)
- Ninnie Helen Bakken Oehme
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Mathieu Roelants
- Environment and Health, Department of Public Health and Primary Care, KU Leuven - University of Leuven, Leuven, Belgium
| | - Ingvild Saervold Bruserud
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Andre Madsen
- Department of Medical Biochemistry and Pharmacology, Hormone Laboratory, Haukeland University Hospital, Bergen, Norway
| | - Robert Bjerknes
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Karen Rosendahl
- Department of Radiology, University Hospital of North Norway, Tromsø, Norway.,Department of Clinical Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Petur B Juliusson
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Pediatrics, Haukeland University Hospital, Bergen, Norway.,Department of Health Registry Research and Development, Norwegian Institute of Public Health, Oslo, Norway
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84
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Rostamzadeh S, Saremi M, Vosoughi S, Bradtmiller B, Janani L, Farshad AA, Taheri F. Analysis of hand-forearm anthropometric components in assessing handgrip and pinch strengths of school-aged children and adolescents: a partial least squares (PLS) approach. BMC Pediatr 2021; 21:39. [PMID: 33446142 PMCID: PMC7809846 DOI: 10.1186/s12887-020-02468-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 12/11/2020] [Indexed: 12/21/2022] Open
Abstract
Background The purpose of this study was to examine the influence of hand-forearm anthropometric dimensions on handgrip and pinch strengths among 7–18 years children and adolescents and to investigate the extent to which these variables can be used to predict hand strength. Methods Four types of hand strengths including handgrip, tip to tip, key, and three-jaw chuck pinches were measured in 2637 healthy children and adolescents (1391 boys and 1246 girls) aged 7–18 years using standard adjustable Jamar hydraulic hand dynamometer and pinch gauge. A set of 17 hand-forearm anthropometric dimensions were also measured with an accurate digital caliper and tape measure. Results No significant differences were found between the hand strengths of boys and girls up to the age of 10 years. Gender related differences in handgrip and pinches were observed from the age of 11 years onwards, with boys always being stronger. The dominant hand was stronger than the non-dominant hand (8% for handgrip and by about 10% for all three types of pinches). The strongest correlations were found between the hand length and hand strengths (r > 0.83 for handgrip and three all pinches; p < 0.001, 2-tailed). Based on the partial least squares (PLS) analysis, 8 out of 17 anthropometric indices including hand length, hand circumference, thumb length, index finger length, middle finger length, and forearm length had considerable loadings in the PLS analysis, which together accounted for 46% of the total variance. Conclusions These results may be used by health professionals in clinical settings as well as by designers to create ergonomic hand tools.
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Affiliation(s)
- Sajjad Rostamzadeh
- Occupational Health Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Saremi
- Workplace Health Promotion Research Center, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shahram Vosoughi
- Department of Occupational Health Engineering, Occupational Health Research Center, Faculty of Health, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, Iran.
| | | | - Leila Janani
- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Asghar Farshad
- Occupational Health Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Taheri
- Occupational Health Research Center, Iran University of Medical Sciences, Tehran, Iran
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85
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Hamlat EJ, Prather AA, Horvath S, Belsky J, Epel ES. Early life adversity, pubertal timing, and epigenetic age acceleration in adulthood. Dev Psychobiol 2021; 63:890-902. [PMID: 33423276 DOI: 10.1002/dev.22085] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 09/05/2020] [Accepted: 12/07/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Given associations linking early life adversity, pubertal timing, and biological aging, we examined the direct and indirect effects of early life trauma on adult biological aging (via age of menarche). METHODS Participants were premenopausal women (N = 183). Path models evaluated whether early life trauma predicted early pubertal timing and thereby, adult epigenetic age acceleration (indexed via four epigenetic clocks: Horvath DNAm Age, Hannum DNAm Age, DNAm PhenoAge, and DNAm GrimAge). Secondary analyses explored the effects of type of trauma (abuse and neglect) and adult chronic stress status (caregiver of child with autism and non-caregiver). RESULTS Early life trauma and earlier age at menarche independently predicted accelerated aging based on one of the four epigenetic clocks, DNAm GrimAge, though early life trauma was not associated with age of menarche. Childhood abuse, but not neglect, predicted faster epigenetic aging; results did not differ by chronic stress status. CONCLUSIONS Early trauma and early menarche appear to exert independent effects on DNAm GrimAge, which has been shown to be the strongest epigenetic predictor of mortality risk. This study identifies a potential correlate or determinant of accelerated epigenetic aging-menarcheal age. Future research should address the limitations of this study by using racially diverse samples.
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Affiliation(s)
| | | | | | - Jay Belsky
- University of California, Davis, CA, USA
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86
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Liu C, Liu X, Zhang X, Yang B, Huang L, Wang H, Yu H. Referential Values of Testicular Volume Measured by Ultrasonography in Normal Children and Adolescents: Z-Score Establishment. Front Pediatr 2021; 9:648711. [PMID: 33777868 PMCID: PMC7991569 DOI: 10.3389/fped.2021.648711] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 02/08/2021] [Indexed: 12/11/2022] Open
Abstract
Objective: To establish Z-score regression equation derived from age for testicular volume measured by ultrasonography in normal boys aged 0 to 18 years old. Method: The length (L), width (W), and height (H) of 3,328 testicles from 1,664 Chinese boys were measured by ultrasonography. Lambert's formula: L × W × H × 0.71 was used to calculate testicular volume. Z-score regression equation derived from age was established by regression analysis of predicted values of testicular volume and standard deviations. Result: There was no significant difference between left and right testicular volumes. Testicular volume was positively correlated with age, and logarithmic transformation of testicular volume can show a fine curve fit with age. To establish Z-score regression equation derived from age, the predicted values of testicular volume used cubic regression equations, and the standard deviation used square regression equations. The Z-score regression equation derived from age was calculated by the formula: z = [lg (L × W × H × 0.71) - (-0.3524-0.01759 × x+0.009417 × x2-0.0001840 × x3)]/(0.1059+0.01434 × x-0.0005324 × x2). Conclusion: The current study provided a reference value for testicular volume of boys aged 0 to 18 years old. Z-score regression equation derived from age for testicular volume can be established. Z-score will be of great value for the testicular development assessment and disease diagnosis and follow-up.
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Affiliation(s)
- Chen Liu
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiao Liu
- Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Xiangxiang Zhang
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Boyang Yang
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Lan Huang
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongying Wang
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongkui Yu
- Department of Ultrasonography, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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Xie L, Tang Q, Yao D, Gu Q, Zheng H, Wang X, Yu Z, Shen X. Effect of Decaffeinated Green Tea Polyphenols on Body Fat and Precocious Puberty in Obese Girls: A Randomized Controlled Trial. Front Endocrinol (Lausanne) 2021; 12:736724. [PMID: 34712203 PMCID: PMC8546255 DOI: 10.3389/fendo.2021.736724] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/20/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Obesity has been reported to be an important contributing factor for precocious puberty, especially in girls. The effect of green tea polyphenols on weight reduction in adult population has been shown, but few related studies have been conducted in children. This study was performed to examine the effectiveness and safety of decaffeinated green tea polyphenols (DGTP) on ameliorating obesity and early sexual development in girls with obesity. DESIGN This is a double-blinded randomized controlled trial. Girls with obesity aged 6-10 years old were randomly assigned to receive 400 mg/day DGTP or isodose placebo orally for 12 weeks. During this period, all participants received the same instruction on diet and exercise from trained dietitians. Anthropometric measurements, secondary sexual characteristics, B-scan ultrasonography of uterus, ovaries and breast tissues, and related biochemical parameters were examined and assessed pre- and post-treatment. RESULTS Between August 2018 and January 2020, 62 girls with obesity (DGTP group n = 31, control group n = 31) completed the intervention and were included in analysis. After the intervention, body mass index, waist circumference, and waist-to-hip ratio significantly decreased in both groups, but the percentage of body fat (PBF), serum uric acid (UA), and the volumes of ovaries decreased significantly only within the DGTP group. After controlling confounders, DGTP showed a significantly decreased effect on the change of PBF (β = 2.932, 95% CI: 0.214 to 5.650), serum UA (β = 52.601, 95% CI: 2.520 to 102.681), and ovarian volumes (right: β = 1.881, 95% CI: 0.062 to 3.699, left: β = 0.971, 95% CI: 0.019 to 1.923) in girls with obesity. No side effect was reported in both groups during the whole period. CONCLUSION DGTP have shown beneficial effects of ameliorated obesity and postponed early sexual development in girls with obesity without any adverse effects. CLINICAL TRIAL REGISTRATION [https://clinicaltrials.gov/ct2/show/NCT03628937], identifier [NCT03628937].
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Affiliation(s)
- Luyao Xie
- Department of Clinical Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingya Tang
- Department of Clinical Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Die Yao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiuyun Gu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Zheng
- Department of Clinical Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaodi Wang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiping Yu
- Department of Nutrition and Dietetics, University of North Florida, Jacksonville, FL, United States
| | - Xiuhua Shen
- Department of Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Xiuhua Shen,
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Miltenburg Caspersen L, Sonnesen L. Secular trend of the skeletal maturation in relation to peak height velocity-a comparison between two groups of children born 1969-1973 and 1996-2000. Eur J Orthod 2020; 42:612-618. [PMID: 31942968 DOI: 10.1093/ejo/cjz098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
BACKGROUND/OBJECTIVES The aims were to study the presence of a secular trend in (a) age at peak height velocity (PHV), (b) velocity at PHV, and (c) duration of skeletal maturation in relation to PHV. MATERIAL/METHOD Two groups of children: 100 children (63 boys, 37 girls) born between 1969-1973 and 71 children (49 boys, 22 girls) born between 1996 and 2000, were compared. Age and velocity at PHV were measured on individual growth velocity curves. Skeletal maturation stages were assessed on hand-wrist radiographs, and duration from the skeletal maturation stages to PHV was determined. RESULTS Age at PHV occurred significantly earlier (0.47 years, CI 95% 0.19-0.76, P < 0.001), and velocity at PHV was significantly higher (0.68 cm/year, CI 95% 1.47-2.06, P < 0.003) in children born 1996-2000 compared to 1969-1973. No significant difference in duration of skeletal maturation was seen between the groups. Skeletal maturation stages occurred significantly in the following order before PHV for both genders: PP2= 2.18 years (P = 0.002), MP3= 1.60 year (P = 0.008), S 1.07 year (P = 0.003), and MP3cap 0.38 year (P = 0.037). LIMITATIONS Most radiographs were taken before PHV, the duration thus mainly reflects the early event of pubertal growth spurt. CONCLUSION A secular trend was evident: significantly decreased age at PHV and significantly increased velocity at PHV. No evidence of a secular trend regarding duration of the skeletal maturation in relation to PHV was found. Due to the declining age at PHV, the skeletal maturation stages occurred earlier in relation to chronological age.
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Affiliation(s)
- Louise Miltenburg Caspersen
- Section for Orthodontics, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Liselotte Sonnesen
- Section for Orthodontics, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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O’Keeffe LM, Frysz M, Bell JA, Howe LD, Fraser A. Puberty timing and adiposity change across childhood and adolescence: disentangling cause and consequence. Hum Reprod 2020; 35:2784-2792. [PMID: 33242326 PMCID: PMC7744159 DOI: 10.1093/humrep/deaa213] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 06/23/2020] [Indexed: 12/27/2022] Open
Abstract
STUDY QUESTION Is earlier puberty more likely a result of adiposity gain in childhood than a cause of adiposity gain in adulthood? SUMMARY ANSWER Pre-pubertal fat mass is associated with earlier puberty timing but puberty timing is not associated with post-pubertal fat mass change. WHAT IS KNOWN ALREADY Age at puberty onset has decreased substantially in the last several decades. Whether reducing childhood adiposity prevents earlier puberty and if early puberty prevention itself also has additional independent benefits for prevention of adult adiposity is not well understood. STUDY DESIGN, SIZE, DURATION Prospective birth cohort study of 4176 participants born in 1991/1992 with 18 232 repeated measures of fat mass from age 9 to 18 years. PARTICIPANTS/MATERIALS, SETTING, METHODS We used repeated measures of height from 5 to 20 years to identify puberty timing (age at peak height velocity, aPHV) and repeated measures of directly measured fat mass from age 9 to 18 years, from a contemporary UK birth cohort study to model fat mass trajectories by chronological age and by time before and after puberty onset. We then examined associations of these trajectories with puberty timing separately in females and males. MAIN RESULTS AND THE ROLE OF CHANCE In models by chronological age, a 1-year later aPHV was associated with 20.5% (95% confidence interval (CI): 18.6-22.4%) and 23.4% (95% (CI): 21.3-25.5%) lower fat mass in females and males, respectively, at 9 years. These differences were smaller at age 18 years: 7.8% (95% (CI): 5.9-9.6%) and 12.4% (95% (CI): 9.6-15.2%) lower fat mass in females and males per year later aPHV. Trajectories of fat mass by time before and after puberty provided strong evidence for an association of pre-pubertal fat mass with puberty timing, and little evidence of an association of puberty timing with post-pubertal fat mass change. The role of chance is likely to be small in this study given the large sample sizes available. LIMITATIONS, REASONS FOR CAUTION Participants included in our analyses were more socially advantaged than those excluded. The findings of this work may not apply to non-White populations and further work examining associations of puberty timing and fat mass in other ethnicities is required. WIDER IMPLICATIONS OF THE FINDINGS Previous research has relied on self-reported measures of puberty timing such as age of voice breaking in males, has lacked data on pre-and post-pubertal adiposity together and relied predominantly on indirect measures of adiposity such as BMI. This has led to conflicting results on the nature and direction of the association between puberty timing and adiposity in females and males. Our work provides important clarity on this, suggesting that prevention of adiposity in childhood is key for prevention of early puberty, adult adiposity and associated cardiovascular risk. In contrast, our findings suggest that prevention of early puberty without prevention of childhood adiposity would have little impact on prevention of adult adiposity. STUDY FUNDING/COMPETING INTEREST(S) The UK Medical Research Council and Wellcome (Grant ref: 102215/2/13/2) and the University of Bristol provide core support for Avon Longitudinal Study of Parents and Children (ALSPAC). L.M.O.K. is supported by a UK Medical Research Council Population Health Scientist fellowship (MR/M014509/1) and a Health Research Board (HRB) of Ireland Emerging Investigator Award (EIA-FA-2019-007 SCaRLeT). J.A.B. is supported by the Elizabeth Blackwell Institute for Health Research, University of Bristol and the Wellcome Trust Institutional Strategic Support Fund (204813/Z/16/Z). L.D.H. and A.F. are supported by Career Development Awards from the UK Medical Research Council (grants MR/M020894/1 and MR/M009351/1, respectively). All authors work in a unit that receives funds from the UK Medical Research Council (grant MC_UU_00011/3, MC_UU_00011/6). No competing interests to declare. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Linda M O’Keeffe
- School of Public Health, University College Cork, Cork, Ireland
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, Bristol, UK
| | - Monika Frysz
- School of Public Health, University College Cork, Cork, Ireland
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
| | - Joshua A Bell
- School of Public Health, University College Cork, Cork, Ireland
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
| | - Laura D Howe
- School of Public Health, University College Cork, Cork, Ireland
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
| | - Abigail Fraser
- School of Public Health, University College Cork, Cork, Ireland
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
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Central Ceramide Signaling Mediates Obesity-Induced Precocious Puberty. Cell Metab 2020; 32:951-966.e8. [PMID: 33080217 DOI: 10.1016/j.cmet.2020.10.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 07/30/2020] [Accepted: 09/30/2020] [Indexed: 12/17/2022]
Abstract
Childhood obesity, especially in girls, is frequently bound to earlier puberty, which is linked to higher disease burden later in life. The mechanisms underlying this association remain elusive. Here we show that brain ceramides participate in the control of female puberty and contribute to its alteration in early-onset obesity in rats. Postnatal overweight caused earlier puberty and increased hypothalamic ceramide content, while pharmacological activation of ceramide synthesis mimicked the pubertal advancement caused by obesity, specifically in females. Conversely, central blockade of de novo ceramide synthesis delayed puberty and prevented the effects of the puberty-activating signal, kisspeptin. This phenomenon seemingly involves a circuit encompassing the paraventricular nucleus (PVN) and ovarian sympathetic innervation. Early-onset obesity enhanced PVN expression of SPTLC1, a key enzyme for ceramide synthesis, and advanced the maturation of the ovarian noradrenergic system. In turn, obesity-induced pubertal precocity was reversed by virogenetic suppression of SPTLC1 in the PVN. Our data unveil a pathway, linking kisspeptin, PVN ceramides, and sympathetic ovarian innervation, as key for obesity-induced pubertal precocity.
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91
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Aghaee S, Deardorff J, Greenspan LC, Quesenberry CP, Kushi LH, Kubo A. Early life household intactness and timing of pubertal onset in girls: a prospective cohort study. BMC Pediatr 2020; 20:464. [PMID: 33109126 PMCID: PMC7592583 DOI: 10.1186/s12887-020-02345-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/14/2020] [Indexed: 11/25/2022] Open
Abstract
Background Girls who experience early-life familial stress may have heightened risk of early puberty, which has adverse implications for adolescent and adult health. We assessed the association between household intactness and pubertal onset using a racially/ethnically diverse cohort of girls from Northern California. Methods A prospective cohort study of 26,044 girls born in 2003-10. Girls living with both parents from birth up to 6 years were considered to come from “intact” households while others constituted “non-intact” households. Pubertal development was measured using pediatrician-assessed Tanner staging for breast and pubic hair. Pubertal onset was defined as the transition from Tanner Stage 1 to 2+ for breast (thelarche) and pubic hair (pubarche). Menarche data was collected from routine well-child questionnaires. Weibull regression models accommodating left, right, and interval censoring were used to determine risk of earlier thelarche and pubarche, and logistic regressions were used to assess the risk of early menarche (age < 12). Results Girls exposed to non-intact households before age 2 years were at increased risk for earlier thelarche and pubarche with significant effect modification by race/ethnicity, compared with girls from intact households. The associations were strongest among Black girls (adjusted hazard ratio [HR]: 1.60, 95% confidence interval [CI]: 1.29,1.98; HR: 1.42, 95%CI: 1.15,1.77 for thelarche and pubarche, respectively). There were no significant associations among Asian/Pacific Islanders. Girls who lived in non-intact households before age 2 years were also at increased risk for earlier menarche, but without race/ethnic interaction. Adjustment for prepubertal obesity did not change these associations. Associations between living in non-intact households after age 2 years and early puberty were weaker but still significant. Conclusions Exposure to a non-intact household early in life may increase the risk of early puberty in girls. Future psychosocial interventions focused on improving family cohesiveness and efforts to reduce childhood stress among families that are non-intact may mitigate these negative associations, thereby preventing future adverse health effects of early puberty and health disparities.
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Affiliation(s)
- Sara Aghaee
- Kaiser Permanente Division of Research, 2000 Broadway, CA, 94612, Oakland, USA
| | - Julianna Deardorff
- Division of Maternal and Child Health, School of Public Health, University of California, 2121 Berkeley Way #5302, CA, 94720, Berkeley, USA
| | - Louise C Greenspan
- Kaiser Permanente San Francisco Medical Center, 2425 Geary Boulevard, CA, 94115, San Francisco, USA
| | | | - Lawrence H Kushi
- Kaiser Permanente Division of Research, 2000 Broadway, CA, 94612, Oakland, USA
| | - Ai Kubo
- Kaiser Permanente Division of Research, 2000 Broadway, CA, 94612, Oakland, USA.
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Klein KO, Freire A, Gryngarten MG, Kletter GB, Benson M, Miller BS, Dajani TS, Eugster EA, Mauras N. Phase 3 Trial of a Small-volume Subcutaneous 6-Month Duration Leuprolide Acetate Treatment for Central Precocious Puberty. J Clin Endocrinol Metab 2020; 105:5879679. [PMID: 32738042 PMCID: PMC7442270 DOI: 10.1210/clinem/dgaa479] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/21/2020] [Indexed: 11/26/2022]
Abstract
CONTEXT Gonadotropin-releasing hormone agonists (GnRHas) are standard of care for central precocious puberty (CPP). A 6-month subcutaneous injection has recently been approved by the Food and Drug Administration. OBJECTIVE Determine efficacy, pharmacokinetics, and safety of 6-month 45-mg subcutaneous leuprolide acetate for CPP. DESIGN Phase 3 multicenter, open-label, single-arm study. SETTING 25 sites in 6 countries. SUBJECTS 64 GnRHa-naïve children with CPP (age: 7.5 ± 0.1 years) received study drug: 59 completed the study. INTERVENTION(S) 2 doses of 45-mg subcutaneous leuprolide acetate (0.375 mL) at 0 and 24 weeks; children were followed for 48 weeks. MAIN OUTCOME MEASURE(S) Percentage of children with serum luteinizing hormone (LH) <4 IU/L 30 minutes following GnRHa stimulation at week 24. RESULTS 54/62 (87%) children achieved poststimulation LH <4 IU/L at week 24; 49/56 (88%) girls and 1/2 boys maintained peak LH <4 IU/L at week 48. Mean growth velocity decreased from 8.9 cm/year at week 4 to 6.0 cm/year at week 48. Mean bone age was advanced 3.0 years beyond chronological age at screening and 2.7 years at week 48. Breast pubertal stage regressed or was stable in 97% of girls and external genitalia development regressed in both boys. Adverse events were mild and did not cause treatment discontinuation. CONCLUSIONS A small volume of 45-mg subcutaneous leuprolide acetate administered at a 6-month interval effectively suppressed pubertal hormones and stopped or caused regression of pubertal progression. This long-acting GnRHa preparation of leuprolide acetate is a new, effective, and well-tolerated therapy for children with CPP.
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Affiliation(s)
- Karen O Klein
- Rady Children’s Hospital and University of California, San Diego, California
- Correspondence and Reprint Requests: Karen O. Klein, MD, Endocrinology/Diabetes, Institute/University/Hospital, Rady Children’s Hospital, 3020 Children’s Way, San Diego, CA 92123, USA. E-mail:
| | - Analía Freire
- Centro de Investigaciones Endocrinológicas “Dr. César Bergadá” (CEDIE) CONICET – FEI – División de Endocrinología, Hospital de Niños Ricardo Gutierrez, Buenos Aires, Argentina
| | - Mirta Graciela Gryngarten
- Centro de Investigaciones Endocrinológicas “Dr. César Bergadá” (CEDIE) CONICET – FEI – División de Endocrinología, Hospital de Niños Ricardo Gutierrez, Buenos Aires, Argentina
| | - Gad B Kletter
- MultiCare Institute for Research and Innovation, Tacoma, Washington
| | - Matthew Benson
- Nemours Children’s Hospital, Orlando, Florida
- Nemours Children’s Health System, Jacksonville, Florida
| | - Bradley S Miller
- University of Minnesota Masonic Children’s Hospital, Minneapolis, Minnesota
| | - Tala S Dajani
- School of Osteopathic Medicine in Arizona, A.T. Still University, Mesa, Arizona
| | - Erica A Eugster
- Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana
| | - Nelly Mauras
- Nemours Children’s Health System, Jacksonville, Florida
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Huang Y, Wang P, Law JCF, Zhao Y, Wei Q, Zhou Y, Zhang Y, Shi H, Leung KSY. Organic UV filter exposure and pubertal development: A prospective follow-up study of urban Chinese adolescents. ENVIRONMENT INTERNATIONAL 2020; 143:105961. [PMID: 32679395 DOI: 10.1016/j.envint.2020.105961] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/03/2020] [Accepted: 07/04/2020] [Indexed: 05/09/2023]
Abstract
BACKGROUND UV filters, widely used in personal care and industrial products, are being found in the environment and, in humans where with limited understanding on their potential health effects, especially during puberty. OBJECTIVES To examine the association between UV filter exposure and pubertal development in a prospective follow-up study. METHODS This study included 521 elementary and high school students from a suburban area of Shanghai. The initial study was done in October to November 2011; the follow-up study in April to May 2013. Twelve urinary organic UV filters were quantified, and the pubertal development was assessed at each study period by trained physicians using Tanner staging. We used (ordered) logistic regression model and multilevel mixed-effect (ordered) logistic regression model to assess cross-sectional and longitudinal effects between urinary concentration of five major UV filters and pubertal development of stages, onset and pace. RESULTS Ethylhexyl methoxycinnamate (EHMC) and its metabolite 4'-methoxyacetophenone (4'-MAP), two benzophenone derivatives (BP-2, BP-3) and Ethylhexyl dimethyl PABA (OD-PABA) were the most extensively detected UV filters in urine with geometric means (95% CI) in 2010 and 2012 as 1.77 (1.599, 1.956) and 2.28 (1.985, 2.622) ng/mL for EHMC; 4.55 (4.219, 4.907) and 5.26 (4.783, 5.775) ng/mL for 4'-MAP; 4.38 (4.011, 4.774) and 5.74 (5.023, 6.562) ng/mL for BP-2; 0.83 (0.760, 0.903) and 1.09 (0.967, 1.220) ng/mL for BP-3; 5.37 (4.949, 5.820) and 5.80 (5.193, 6.486) pg/mL for OD-PABA. Significant trend P-values (P < 0.05) include: EHMC and its metabolite were negatively correlated with stages of testicular volume and genital development; BP-3 was also negatively correlated with stages of testicular volume in boys, while OD-PABA positively correlated with stages of pubic hair and breast development in girls. Also, EHMC was associated with later pubertal onset of pubic hair and testicular volumes in boys, while OD-PABA correlated with earlier pubertal onset of breast development in girls. OD-PABA also significantly speeded up the progression of pubic hair and breast development in girls. DISCUSSION UV filters were extensively detected. Exposure to EHMC and BP-3 was significantly associated with later pubertal development in boys, and OD-PABA was associated with earlier pubertal development in girls. It demonstrates that the UV filters so widely used in personal care products and widely detected in environments are finding their way back into people where they are distorting endocrine function of adolescents.
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Affiliation(s)
- Yanran Huang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Pengpeng Wang
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Japhet Cheuk-Fung Law
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Yingya Zhao
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Qian Wei
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Yuhan Zhou
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Yunhui Zhang
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China.
| | - Huijing Shi
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China.
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China.
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Vanacker C, Trova S, Shruti S, Casoni F, Messina A, Croizier S, Malone S, Ternier G, Hanchate NK, Rasika S, Bouret SG, Ciofi P, Giacobini P, Prevot V. Neuropilin-1 expression in GnRH neurons regulates prepubertal weight gain and sexual attraction. EMBO J 2020; 39:e104633. [PMID: 32761635 PMCID: PMC7527814 DOI: 10.15252/embj.2020104633] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 07/01/2020] [Accepted: 07/13/2020] [Indexed: 12/26/2022] Open
Abstract
Hypothalamic neurons expressing gonadotropin-releasing hormone (GnRH), the "master molecule" regulating reproduction and fertility, migrate from their birthplace in the nose to their destination using a system of guidance cues, which include the semaphorins and their receptors, the neuropilins and plexins, among others. Here, we show that selectively deleting neuropilin-1 in new GnRH neurons enhances their survival and migration, resulting in excess neurons in the hypothalamus and in their unusual accumulation in the accessory olfactory bulb, as well as an acceleration of mature patterns of activity. In female mice, these alterations result in early prepubertal weight gain, premature attraction to male odors, and precocious puberty. Our findings suggest that rather than being influenced by peripheral energy state, GnRH neurons themselves, through neuropilin-semaphorin signaling, might engineer the timing of puberty by regulating peripheral adiposity and behavioral switches, thus acting as a bridge between the reproductive and metabolic axes.
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Affiliation(s)
- Charlotte Vanacker
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Sara Trova
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Sonal Shruti
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Filippo Casoni
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Andrea Messina
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Sophie Croizier
- Center for Integrative GenomicsUniversity of LausanneLausanneSwitzerland
| | - Samuel Malone
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Gaetan Ternier
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Naresh Kumar Hanchate
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - S Rasika
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Sebastien G Bouret
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Philippe Ciofi
- Inserm U1215Neurocentre MagendieBordeauxFrance
- Université de BordeauxBordeauxFrance
| | - Paolo Giacobini
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
| | - Vincent Prevot
- Laboratory of Development and Plasticity of the Neuroendocrine BrainUniv. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR‐S 1172LilleFrance
- FHU, 1000 Days for HealthLilleFrance
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95
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Sinai T, Bromberg M, Axelrod R, Shimony T, Stark AH, Keinan-Boker L. Menarche at an Earlier Age: Results from Two National Surveys of Israeli Youth, 2003 and 2016. J Pediatr Adolesc Gynecol 2020; 33:459-465. [PMID: 32339696 DOI: 10.1016/j.jpag.2020.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/18/2020] [Accepted: 04/18/2020] [Indexed: 11/15/2022]
Abstract
STUDY OBJECTIVE To assess emergent changes in the age at menarche and investigate associated factors in Israeli adolescents in 2003 and 2016. DESIGN Cross-sectional study. SETTING Two national representative school-based surveys (first and second "Mabat Youth"). PARTICIPANTS Both surveys included female students in 7th-12th grades (ages 11-19 years). The first (N = 3328) was conducted between the years 2003 and 2004, and the second (N = 2535) from 2015 to 2016. INTERVENTIONS The survey questionnaire was self-administered and anthropometric measurements were performed by trained personnel. MAIN OUTCOME MEASURES The current age at menarche in Israeli girls was determined and independent factors (demographic, clinical, and lifestyle) examined. Changes that occurred since the past national survey more than a decade ago were documented. RESULTS The estimated median age at menarche declined from 13.0 (interquartile range, 12.0-14.0) years in 2003-2004 to 12.5 (interquartile range, 12.0-13.0) years in 2015-2016 (P < .0001). Jewish girls reached menarche earlier than Arab girls, but both populations experienced a similar downward trend in the past approximately 14 years. Greater body mass index, higher socioeconomic status, and immigrant status were associated with younger menarche onset (P < .001). Age at menarche remained lower in 2015-2016 vs 2003-2004, even after adjustment for these potential confounders, with a high hazard ratio (HR), which decreased as a function of survival time (t): HRt = 15.417 × 0.813t. CONCLUSION This study confirms the decline in age at menarche in Israel. Findings were associated with body mass index and population group but also indicated that other factors are likely involved.
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Affiliation(s)
- Tali Sinai
- Israel Center for Disease Control, Israel Ministry of Health, Ramat Gan, Israel; School of Nutritional Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.
| | - Michal Bromberg
- Israel Center for Disease Control, Israel Ministry of Health, Ramat Gan, Israel; School of Public Health, Tel Aviv University, Tel Aviv, Israel
| | - Rachel Axelrod
- Israel Center for Disease Control, Israel Ministry of Health, Ramat Gan, Israel
| | - Tal Shimony
- Israel Center for Disease Control, Israel Ministry of Health, Ramat Gan, Israel
| | - Aliza H Stark
- School of Nutritional Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Lital Keinan-Boker
- Israel Center for Disease Control, Israel Ministry of Health, Ramat Gan, Israel; School of Public Health, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
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96
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Erdem Guzel E, Kaya N, Tektemur A, Ulker N, Yardimci A, Akkoc RF, Canpolat S, Ozan IE. Chronic effects of maternal tobacco-smoke exposure and/or α-lipoic acid treatment on reproductive parameters in female rat offspring. Syst Biol Reprod Med 2020; 66:387-399. [PMID: 32951465 DOI: 10.1080/19396368.2020.1815248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Prenatal tobacco-smoke exposure negatively affects the reproductive functions of female offspring and oxidative stress plays a major role at this point. Alpha-lipoic acid (ALA), well known as a biological antioxidant, has been used as a nutritional supplement and as a therapeutic agent in the treatment of certain complications during pregnancy. We aimed to investigate the effects of maternal tobacco-smoke exposure and/or ALA administration on puberty onset, sexual behavior, gonadotrophin levels, apoptosis-related genes, apoptotic cell numbers and oxidative stress markers in the adult female rat offspring. Sprague-Dawley rats were divided into four groups; control, tobacco smoke (TS), TS+ALA and ALA groups. Animals were exposed to TS and/or ALA for 8 weeks before pregnancy and throughout pregnancy. All treatments ended with birth and later newborn female rats were selected for each experimental group. The experiment ended at postnatal day 74-77. Maternal tobacco smoke advanced the onset of puberty in the female offspring of the TS group (p < 0.05). In all treatment groups; the mean number of anogenital investigations and lordosis quality scores showed a decline, serum luteinizing hormone levels significantly increased (p < 0.05) and several histopathological changes in ovaries were observed compared to the control group. In addition, an increase in apoptotic marker levels and apoptotic cell numbers was detected in the ovaries of all treatment groups. Decreased TAS and increased TOS levels were detected in all treatment groups compared to control. These findings suggested that maternal tobacco smoke and/or ALA administration may be leading to the impaired reproductive health of female offspring. Abbreviations: ALA: alpha-lipoic acid; LH: luteinizing hormone; FSH: follicle-stimulating hormone; TAS: total antioxidant status; TOS: total oxidant status; Apaf1: apoptotic protease-activating factor 1; Casp3: caspase 3; Casp9: caspase 9; CF: cyst follicles; 4-HNE: 4-Hidroxynonenal; 8-OHdG: 8-hydroxydeoxyguanosine; TUNEL: terminal deoxynucleotidyl transferase-mediated deoxyuridine-biotin nick end labeling; ROS: reactive oxygen species; GnRHR: gonadotropin-releasing hormone receptor; HPG: hypothalamic-pituitary-gonadal; AMPK: AMP-activated protein kinase; ELISA: enzyme-linked immunosorbent assay; cDNA: complementary DNA; qPCR: quantitative real-time PCR; FC: follicular cysts; PF: primary follicle; SF: secondary follicle; GF: graafian follicle; CL: corpus luteum; DF: degenerated follicle; AF: atretic follicle.
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Affiliation(s)
- Elif Erdem Guzel
- Department of Midwifery, Faculty of Health Sciences, Mardin Artuklu University , Mardin, Turkey
| | - Nalan Kaya
- Department of Histology and Embryology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ahmet Tektemur
- Department of Medical Biology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Nazife Ulker
- Department of Physiology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ahmet Yardimci
- Department of Physiology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ramazan Fazil Akkoc
- Department of Anatomy, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Sinan Canpolat
- Department of Physiology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ibrahim Enver Ozan
- Department of Histology and Embryology, Faculty of Medicine, Firat University , Elazig, Turkey
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97
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Chow JC, Chou TY, Tung TH, Yuh YS. Recent pubertal timing trends in Northern Taiwanese children: Comparison with skeletal maturity. J Chin Med Assoc 2020; 83:870-875. [PMID: 32902941 PMCID: PMC7478199 DOI: 10.1097/jcma.0000000000000360] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND International studies have reported an early age of onset of puberty in girls and boys. However, the current situation of puberty onset in Taiwanese children is unknown. In this study, the timing of menarche and pubertal change in testicular volume (TV) in Taiwanese children was examined, and bone age (BA) was used as an internal somatic maturity scale and compared with the chronological age (CA) at pubertal timing. METHODS Clinical data from October 1, 2010, to March 31, 2018, were retrospectively collected from a general hospital in Taipei. The data of patients who were diagnosed with endocrine/genetic disorders were excluded. Clinical data included CA, timing of menarche, and X-ray images of TV and BA. BA was determined by a senior pediatrician and a senior pediatric radiologist. The reliability and validity of BA readings were tested. Collected data were analyzed statistically. RESULTS Overall, TV records of 241 boys and the menarche timing data of 98 girls were collected from 1823 children. CA for menarche was 11.35 ± 1.06 years (mean ± SD), and BA for menarche was 12.95 ± 0.80 years. CA and BA at TV = 15 mL in male puberty was 12.32 ± 1.22 and 13.46 ± 0.68 years, respectively. A stronger correlation was observed between TV and BA than between TV and CA during the pubertal period. CONCLUSION The secular trend of earlier puberty timing continues. The decline rate of menarche timing was approximately 0.43 years per decade in the past 30 years. Among boys, an advance of more than 1 year in pubertal timing age was observed over the past 20 years. BA and TV showed high correlation during puberty.
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Affiliation(s)
- Jeffrey C. Chow
- Department of Pediatrics, Cheng Hsin General Hospital, Taipei, Taiwan, ROC
| | - Ting Ywan Chou
- Department of Radiology, Cardinal Tien Hospital, Taipei, Taiwan, ROC
- Department of Medical Education, College of Medicine, Fu Jen Catholic University, Taipei, Taiwan, ROC
| | - Tao-Hsin Tung
- Department of Medical Education and Research, Cheng Hsin General Hospital, Taipei, Taiwan, ROC
| | - Yeong-Seng Yuh
- Department of Pediatrics, Cheng Hsin General Hospital, Taipei, Taiwan, ROC
- Department of Pediatrics, National Defense Medical Center, Taipei, Taiwan, ROC
- Address correspondence. Dr. Yeong-Seng Yuh, Department of Pediatrics, Cheng Hsin General Hospital, 45, Zhenxing Street, Taipei 112, Taiwan, ROC. E-mail address: (Y.-S. Yuh)
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98
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Colich NL, Rosen ML, Williams ES, McLaughlin KA. Biological aging in childhood and adolescence following experiences of threat and deprivation: A systematic review and meta-analysis. Psychol Bull 2020; 146:721-764. [PMID: 32744840 DOI: 10.1037/bul0000270] [Citation(s) in RCA: 190] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Life history theory argues that exposure to early life adversity (ELA) accelerates development, although existing evidence for this varies. We present a meta-analysis and systematic review testing the hypothesis that ELA involving threat (e.g., violence exposure) will be associated with accelerated biological aging across multiple metrics, whereas exposure to deprivation (e.g., neglect, institutional rearing) and low-socioeconomic status (SES) will not. We meta-analyze 54 studies (n = 116,010) examining associations of ELA with pubertal timing and cellular aging (telomere length and DNA methylation age), systematically review 25 studies (n = 3,253) examining ELA and neural markers of accelerated development (cortical thickness and amygdala-prefrontal cortex functional connectivity) and evaluate whether associations of ELA with biological aging vary according to the nature of adversity experienced. ELA overall was associated with accelerated pubertal timing (d = -0.10) and cellular aging (d = -0.21), but these associations varied by adversity type. Moderator analysis revealed that ELA characterized by threat was associated with accelerated pubertal development (d = -0.26) and accelerated cellular aging (d = -0.43), but deprivation and SES were unrelated to accelerated development. Systematic review revealed associations between ELA and accelerated cortical thinning, with threat-related ELA consistently associated with thinning in ventromedial prefrontal cortex, and deprivation and SES associated with thinning in frontoparietal, default, and visual networks. There was no consistent association of ELA with amygdala-PFC connectivity. These findings suggest specificity in the types of early environmental experiences associated with accelerated biological aging and highlight the importance of evaluating how accelerated aging contributes to health disparities and whether this process can be mitigated through early intervention. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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99
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Oehme NHB, Roelants M, Særvold Bruserud I, Madsen A, Eide GE, Bjerknes R, Rosendahl K, Juliusson PB. Reference data for testicular volume measured with ultrasound and pubic hair in Norwegian boys are comparable with Northern European populations. Acta Paediatr 2020; 109:1612-1619. [PMID: 31899821 DOI: 10.1111/apa.15159] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/06/2019] [Accepted: 01/02/2020] [Indexed: 12/15/2022]
Abstract
AIM To estimate references for testicular volume measured with ultrasound and Tanner stages of pubic hair in Norwegian boys, and to compare the timing of puberty with data from similar populations. METHODS Testicular volume was derived from ultrasound measurements of testicular volume in a cross-sectional study of 514 healthy boys. A continuous testicular volume for age reference curve was estimated with the LMS method. Tanner stages for pubic hair were clinically assessed in 452 boys. Age references for pubertal milestones were estimated with probit regression. RESULTS Puberty onset, defined by an ultrasound testicular volume of 2.7 mL, equivalent to an orchidometer volume of 4 mL, occurred at a mean (SD) age of 11.7 (1.1) years. The reference range was 9.7 (3rd) to 13.7 years (97th percentile). Pubic hair (Tanner stage 2) appeared on average at 11.8 (1.2) years with a corresponding reference range of 9.5-14.1 years. CONCLUSION The references for testicular volume measured with ultrasound are continuous in age and allow for the quantification of pubertal development. The age distribution of reaching pubertal milestones was comparable with data from other Northern European countries.
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Affiliation(s)
- Ninnie Helen Bakken Oehme
- Department of Clinical Science University of Bergen Bergen Norway
- Department of Pediatrics Haukeland University Hospital Bergen Norway
| | - Mathieu Roelants
- Environment and Health Department of Public Health and Primary Care KU Leuven–University of Leuven Leuven Belgium
| | - Ingvild Særvold Bruserud
- Department of Clinical Science University of Bergen Bergen Norway
- Department of Pediatrics Haukeland University Hospital Bergen Norway
| | - Andre Madsen
- Department of Clinical Science University of Bergen Bergen Norway
- The Hormone Laboratory Haukeland University Hospital Bergen Norway
| | - Geir Egil Eide
- Centre for Clinical Research Haukeland University Hospital Bergen Norway
- Department of Global Public Health and Primary Care University of Bergen Bergen Norway
| | - Robert Bjerknes
- Department of Clinical Science University of Bergen Bergen Norway
- Department of Pediatrics Haukeland University Hospital Bergen Norway
| | - Karen Rosendahl
- Department of Radiology Haukeland University Hospital Bergen Norway
- Department of Clinical Medicine University of Bergen Bergen Norway
| | - Petur B. Juliusson
- Department of Clinical Science University of Bergen Bergen Norway
- Department of Pediatrics Haukeland University Hospital Bergen Norway
- Department of Health Registries Norwegian Institute of Public Health Bergen Norway
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100
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Erthal RP, Siervo G, Staurengo-Ferrari L, Fattori V, Pescim RR, Verri WA, Fernandes G. Impairment of postnatal epididymal development and immune microenvironment following administration of low doses of malathion during juvenile and peripubertal periods of rats. Hum Exp Toxicol 2020; 39:1487-1496. [PMID: 32495713 DOI: 10.1177/0960327120930076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Malathion is an organophosphate pesticide widely used for agricultural crops and for vector control of Aedes aegypti. Humans are exposed to this environmental contaminant by ingesting contaminated food. The juvenile and peripubertal periods are critical for the postnatal development of the epididymis and are when animals are most vulnerable to toxic agents. Since juveniles and adolescents are developing under exposure to the insecticide malathion, the aim of the present study was to evaluate the effects of exposure to low doses of malathion on postnatal epididymal development in rats. Male Wistar rats were exposed to malathion daily via gavage at doses of 10 mg kg-1 (M10 group) or 50 mg kg-1 (M50 group) for 40 days (postnatal days (PNDs) 25-65). The control group received the vehicle (0.9% saline) under the same conditions. On PND 40, the epididymides were removed, weighed and used for histological analysis and determination of the inflammatory profile and sperm count. Sperm from the vas deferens were subjected to sperm motility analysis. The M50 group showed tissue remodelling in the caput and cauda epididymides and increased neutrophil and macrophage migration in the caput epididymis. The M10 group showed decreased motile spermatozoa and IL-6 levels in the caput epididymis. Both doses decreased the IL-1β level and altered the morphology of the same region. These results show that malathion exposure may impair postnatal epididymal development. Furthermore, alterations of the immune system in the epididymal environment are presented as new findings regarding the action of malathion on the epididymis.
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Affiliation(s)
- R P Erthal
- Department of General Pathology, Biological Sciences Center, State University of Londrina - UEL, Londrina, Paraná, Brazil
| | - Geml Siervo
- Department of General Pathology, Biological Sciences Center, State University of Londrina - UEL, Londrina, Paraná, Brazil
| | - L Staurengo-Ferrari
- Department of General Pathology, Biological Sciences Center, State University of Londrina - UEL, Londrina, Paraná, Brazil
| | - V Fattori
- Department of General Pathology, Biological Sciences Center, State University of Londrina - UEL, Londrina, Paraná, Brazil
| | - R R Pescim
- Department of Statistics, Exact Sciences Center, State University of Londrina - UEL, Londrina, Paraná, Brazil
| | - W A Verri
- Department of General Pathology, Biological Sciences Center, State University of Londrina - UEL, Londrina, Paraná, Brazil
| | - Gsa Fernandes
- Department of General Biology, Biological Sciences Center, State University of Londrina - UEL, Londrina, Paraná, Brazil
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