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Wang Q, Wang H, Du B, Wu Y, Li Z, Niu Y, Ouyang F, Bai K, Wang J, Sun K. Association between physical activity and cardiovascular parameters in 7-year-old children: a Chinese cross-sectional study. BMC Pediatr 2024; 24:522. [PMID: 39138455 PMCID: PMC11320774 DOI: 10.1186/s12887-023-04468-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 12/06/2023] [Indexed: 08/15/2024] Open
Abstract
INTRODUCTION Physical activity (PA) is believed to play an important part in many aspects during childhood and adolescence, especially cardiorespiratory fitness and cardiometabolic health. However, whether different levels of PA in daily life influence the structure or function of heart in school-aged children remains unknown. We aimed to investigate the association between PA and cardiovascular parameters in 7-year-old children. METHODS Follow-up data from the Shanghai Prenatal Cohort Study and the Shanghai Birth Cohort was analyzed. Perinatal information including both maternal and offspring datum was recorded. A refined questionnaire was used to evaluate the frequency and duration of children's PA levels. Blood pressure, echocardiography, and anthropometry assessment were conducted during the follow-up of 7-year-old children. RESULTS Overall, high PA level was associated with higher left ventricle posterior wall thickness in diastole (LVPWd, β coefficient: 0.36, 95% CI: 0.12, 0.61), higher left ventricle mass index (LVMI, β = 0.28, 95% CI: 0.07, 0.48), mitral E/a ratio (β = 0.47, 95% CI: 0.22, 0.71) and slower heart rate (β = -0.32, 95% CI: -0.57, -0.07), compared to low PA level. Medium PA level was associated with lower diastolic blood pressure (DBP, β = -0.18, 95% CI: -0.35, -0.01). In subgroup analysis, increased relative wall thickness (RWT) was found in high PA level boys (β = 0.36, 95% CI: 0.05, 0.67), and systolic blood pressure (SBP) showed a significant decrease in high PA level girls (β = -0.42, 95% CI: -0.78, -0.06). CONCLUSIONS This study suggested non-athlete children having higher PA level were associated with thicker left ventricle (LV) walls and better LV diastolic function, as well as slower heart rate and DBP at the age of 7. Furthermore, disparity in the association between PA level with morphological heart patterns and blood pressure existed in different sex category.
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Affiliation(s)
- Qianchuo Wang
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Hualin Wang
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Bowen Du
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Yujian Wu
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Zhuoyan Li
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Yiwei Niu
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Fengxiu Ouyang
- Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Kai Bai
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China.
| | - Jian Wang
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China.
| | - Kun Sun
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China.
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Joo M, Nam S. Adolescent gut microbiome imbalance and its association with immune response in inflammatory bowel diseases and obesity. BMC Microbiol 2024; 24:268. [PMID: 39030520 PMCID: PMC11264842 DOI: 10.1186/s12866-024-03425-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 07/12/2024] [Indexed: 07/21/2024] Open
Abstract
BACKGROUND Recently, there has been an increase in the number of studies focusing on the association between the gut microbiome and obesity or inflammatory diseases, especially in adults. However, there is a lack of studies investigating the association between gut microbiome and gastrointestinal (GI) diseases in adolescents. METHOD We obtained 16S rRNA-seq datasets for gut microbiome analysis from 202 adolescents, comprising ulcerative colitis (UC), Crohn's disease (CD), obesity (Ob), and healthy controls (HC). We utilized Quantitative Insights Into Microbial Ecology (QIIME) and Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) to acquire Operational Taxonomic Units (OTUs). Subsequently, we analyzed Kyoto Encyclopedia of Genes and Genomes (KEGG) Orthology (KO) terms and pathway enrichment for the identified OTUs. RESULTS In this study, we investigated the difference between the gut microbiomes in adolescents with GI diseases and those in healthy adolescents using 202 samples of 16S rRNA sequencing data. The distribution of the six main gut microbiota (i.e., unclassified Dorea, unclassified Lachnospiraceae, unclassified Ruminococcus, Faecalibacterium prausnitzii, Prevotella copri, unclassified Sutterella) was different based on the status of obesity and inflammatory diseases. Dysbiosis was observed within Lachnospiraceae in adolescents with inflammatory diseases (i.e., UC and CD), and in adolescents with obesity within Prevotella and Sutterella. More specifically, our results showed that the relative abundance of Faecalibacterium prausnitzii and unclassified Lachnospiraceae was more than 10% and 8% higher, respectively, in the UC group compared to the CD, Ob, and HC groups. Additionally, the Ob group had over 20% and over 3% higher levels of Prevotella copri and unclassified Sutterella, respectively, compared to the UC, CD, and HC groups. Also, inspecting associations between the six specific microbiota and KO terms, we found that the six microbiota -relating KO terms were associated with NOD-like receptor signaling. These six taxa differences may affect the immune system and inflammatory response by affecting NOD-like receptor signaling in the host during critical adolescence. CONCLUSION In this study, we discovered that dysbiosis of the microbial community had varying degrees of influence on the inflammatory and immune response pathways in adolescents with inflammatory diseases and obesity.
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Affiliation(s)
- Minjae Joo
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, Incheon, 21999, Korea
| | - Seungyoon Nam
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, Incheon, 21999, Korea.
- Department of Genome Medicine and Science, AI Convergence Center for Medical Science, Gachon Institute of Genome Medicine and Science, Gachon University Gil Medical Center, Gachon University College of Medicine, Dokjeom-Ro 3Beon-Gil, 38-13, Namdong-Gu, Incheon, 21565, Republic of Korea.
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Brown ER, Gettler LT, Rosenbaum S. Effects of social environments on male primate HPG and HPA axis developmental programming. Dev Psychobiol 2024; 66:e22491. [PMID: 38698633 DOI: 10.1002/dev.22491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 03/05/2024] [Accepted: 04/07/2024] [Indexed: 05/05/2024]
Abstract
Developmental plasticity is particularly important for humans and other primates because of our extended period of growth and maturation, during which our phenotypes adaptively respond to environmental cues. The hypothalamus-pituitary-gonadal (HPG) and hypothalamus-pituitary-adrenal (HPA) axes are likely to be principal targets of developmental "programming" given their roles in coordinating fitness-relevant aspects of the phenotype, including sexual development, adult reproductive and social strategies, and internal responses to the external environment. In social animals, including humans, the social environment is believed to be an important source of cues to which these axes may adaptively respond. The effects of early social environments on the HPA axis have been widely studied in humans, and to some extent, in other primates, but there are still major gaps in knowledge specifically relating to males. There has also been relatively little research examining the role that social environments play in developmental programming of the HPG axis or the HPA/HPG interface, and what does exist disproportionately focuses on females. These topics are likely understudied in males in part due to the difficulty of identifying developmental milestones in males relative to females and the general quiescence of the HPG axis prior to maturation. However, there are clear indicators that early life social environments matter for both sexes. In this review, we examine what is known about the impact of social environments on HPG and HPA axis programming during male development in humans and nonhuman primates, including the role that epigenetic mechanisms may play in this programming. We conclude by highlighting important next steps in this research area.
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Affiliation(s)
- Ella R Brown
- Department of Anthropology, University of Michigan, Ann Arbor, Michigan, USA
| | - Lee T Gettler
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana, USA
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, USA
| | - Stacy Rosenbaum
- Department of Anthropology, University of Michigan, Ann Arbor, Michigan, USA
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Qin P, Pan Z, Zhang W, Wang R, Li X, Lu J, Xu S, Gong X, Ye J, Yan X, Liu Y, Li Y, Zhang Y, Fang F. Integrative proteomic and transcriptomic analysis in the female goat ovary to explore the onset of puberty. J Proteomics 2024; 301:105183. [PMID: 38688390 DOI: 10.1016/j.jprot.2024.105183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
Puberty is considered a prerequisite for affecting reproductive performance and productivity. Little was known about molecular changes in pubertal goat ovaries. Therefore, we measured and performed a correlation analysis of the mRNA and proteins changes in the pre-pubertal and pubertal goat ovaries. The results showed that only six differentially expressed genes and differentially abundant proteins out of 18,139 genes and 7550 proteins quantified had significant correlations. CNTN2 and THBS1, discovered in the mRNA-mRNA interaction network, probably participated in pubertal and reproductive regulation by influencing GnRH receptor signals, follicular development, and ovulation. The predicted core transcription factors may either promote or inhibit the expression of reproductive genes and act synergistically to maintain normal reproductive function in animals. The interaction between PKM and TIMP3 with other proteins may impact animal puberty through energy metabolism and ovarian hormone secretion. Pathway enrichment analyses revealed that the co-associated key pathways between ovarian genes and proteins at puberty included calcium signalling pathway and olfactory transduction. These pathways were associated with gonadotropin-releasing hormone synthesis and secretion, signal transmission, and cell proliferation. In summary, these results enriched the potential molecules and signalling pathways that affect puberty and provided new insights for regulating and promoting the onset of puberty. SIGNIFICANCE: This study conducted the first transcriptomic and proteomic correlation analysis of pre-pubertal and pubertal goat ovaries and identified six significantly correlated molecules at both the gene and protein levels. Meanwhile, we were drawn to several molecules and signalling pathways that may play a regulatory role in the onset of puberty and reproduction by influencing reproductive-related gene expression, GnRH receptor signals, energy metabolism, ovarian hormone secretion, follicular development, and ovulation. This information contributed to identify potential biomarkers in pubertal goat ovaries, which was vital for predicting the onset of puberty and improving livestock performance.
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Affiliation(s)
- Ping Qin
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zhihao Pan
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Wei Zhang
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Rui Wang
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xiaoqian Li
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Juntai Lu
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Shuangshuang Xu
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xinbao Gong
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Jing Ye
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xu Yan
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Ya Liu
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yunsheng Li
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yunhai Zhang
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Fugui Fang
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China.
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Mahama S, Weichold K, Fehmer N, Mvungu EN, Natsuaki MN. Pubertal status and body image: An inquiry into experiences of adolescents in Ghana and Kenya. JOURNAL OF RESEARCH ON ADOLESCENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR RESEARCH ON ADOLESCENCE 2024; 34:257-271. [PMID: 38659355 DOI: 10.1111/jora.12953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 03/26/2024] [Accepted: 04/10/2024] [Indexed: 04/26/2024]
Abstract
The current study uses a mixed method design to investigate Kenyan and Ghanaian adolescents' experiences of puberty, and the relations between gender, country of origin, pubertal status, and body image appraisals (N = 86; Ghana = 46, Kenya = 40, 52.9% female aged 13 and 14). Qualitative results revealed seven major themes; puberty means a universal period of growth and transition into adulthood but also evokes negative emotions of shame, anxiety, and embarrassment, being in sync with peers during puberty is important and knowing that others in their lives similarly experience puberty is reassuring. Quantitative results revealed significant gender and country differences in pubertal status and body image. Ghanaian adolescents had more advanced pubertal status and more positive body image appraisals compared to Kenyan adolescents. Moderation analysis results revealed that for the Kenyan sample, post-pubertal males had less favorable body image appraisals than their counterparts who were still pre pubertal whilst for females, post-pubertal girls had more favorable body images than their counterparts. No such effects were observed with the Ghanaian sample. The findings highlight the need for context considerations in understanding body image during the pubertal transition to help identify relevant protective factors for possible interventions. The results affirm the importance of positive body image promotions for adolescents within the African context and suggest the need for much more comprehensive sex education with gender-specific components to help allay fears about puberty, thus preventing the development of possible adaptation problems.
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Affiliation(s)
| | | | - Nora Fehmer
- Friedrich Schiller University of Jena, Jena, Germany
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6
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Liu Z. Association between 25-hydroxyvitamin D concentrations and pubertal timing: 6-14-year-old children and adolescents in the NHANES 2015-2016. Front Endocrinol (Lausanne) 2024; 15:1394347. [PMID: 38841307 PMCID: PMC11150587 DOI: 10.3389/fendo.2024.1394347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/10/2024] [Indexed: 06/07/2024] Open
Abstract
Background The association between 25(OH)D and pubertal timing has not been well studied. The aim of this study was to assess the relationship between 25(OH)D levels and pubertal timing in children. Methods Participants aged 6-14 years who had available nutritional and serum sex hormone (total testosterone (TT) and estradiol (E2)) information (n =1318) were included. We conducted a cross-sectional analysis of the associations between 25(OH)D and sex steroid hormones among children in the National Health and Nutrition Examination Survey, 2015-2016. Puberty was indicated by high levels of steroid hormones (TT≥50 ng/dL in men, E2≥20 pg/ml in women) or menarche. Results Serum 25(OH)D and pubertal status showed the same trend in both males and females. In the male population, the OR values of serum 25(OH)D between 50 and <75 and ≥75 nmol/L were 0.52 (0.25, 1.08) and 0.64 (0.23, 1.75), respectively, compared with serum 25(OH)D<50 nmol/L. The OR of serum 25(OH)D ≥50 nmol/L compared with <50 nmol/L was 0.54 (0.26, 1.10), and the P value was statistically significant (P=0.048). In the female population, when the serum 25(OH)D concentration was <50 nmol/L, the ORs corresponding to a serum 25(OH)D concentration between 50 and <75 and ≥75 nmol/L were 0.53 (0.29, 0.98) and 0.50 (0.19, 1.30), respectively. The OR of serum 25(OH)D≥50 nmol/L compared with <50 nmol/L was 0.52 (0.19, 0.96), and the P value was statistically significant (P=0.037). Conclusions A lower 25(OH)D level was associated with earlier puberty in both girls and boys. There was a negative association between 25(OH)D concentrations and pubertal timing.
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Affiliation(s)
- Ziqin Liu
- The Department of Endocrinology Children’s Hospital of Capital Institute of Pediatrics, Beijing, China
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Proctor KB, Mansoura M, Rodrick E, Volkert V, Sharp WG, Kindler JM. The relationship between food selectivity and stature in pediatric patients with avoidant-restrictive food intake disorder - an electronic medical record review. J Eat Disord 2024; 12:64. [PMID: 38773584 PMCID: PMC11110304 DOI: 10.1186/s40337-024-01020-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 05/13/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND We aimed to characterize stature in pediatric patients with avoidant/restrictive food intake disorder (ARFID), including associations between body size and nutrient intake and height. METHODS We conducted a secondary analysis of pre-treatment data from 60 patients diagnosed with ARFID that were collected from the electronic medical record. Anthropometric measurements were converted to age- and sex-specific Z-scores using pediatric CDC growth charts. Spearman correlations were performed to test the relationship between height and weight/BMI Z-scores as well as height Z-score and diet variables. RESULTS On average, height (-0.35 ± 1.38), weight (-0.58 ± 1.56), and BMI (-0.56 ± 1.48) Z-scores tended to be lower than what would be expected in a generally healthy pediatric population. Percent of individuals with height, weight, or BMI Z-score < -2.0 was 8%, 20%, and 17%, respectively. BMI (P < 0.05) and weight (P < 0.05) were positively associated with height Z-score. Further, intake of some nutrients (e.g., calcium, vitamin D) correlated positively with height Z-score (all P < 0.05). CONCLUSIONS The cross-sectional relationships reported in this study suggest that in children with ARFID, body weight and consumption of bone-augmenting nutrients such as calcium and vitamin D correlated with height. A thorough understanding of the clinical manifestations of malnutrition and longitudinal effects of restrictive eating in patients with ARFID is critical.
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Affiliation(s)
- Kaitlin B Proctor
- Division of Autism & Related Disorders, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
- Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Maryam Mansoura
- Medical College of Georgia, Augusta University, University of Georgia Medical Partnership, Augusta, GA, USA
| | - Eugene Rodrick
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Valerie Volkert
- Division of Autism & Related Disorders, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
- Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - William G Sharp
- Division of Autism & Related Disorders, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
- Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Joseph M Kindler
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA.
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Mohammadalinejad G, Afsharipour B, Yacyshyn A, Duchcherer J, Bashuk J, Bennett E, Pearcey GEP, Negro F, Quinlan KA, Bennett DJ, Gorassini MA. Intrinsic motoneuron properties in typical human development. J Physiol 2024; 602:2061-2087. [PMID: 38554126 PMCID: PMC11262706 DOI: 10.1113/jp285756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/06/2024] [Indexed: 04/01/2024] Open
Abstract
Motoneuron properties and their firing patterns undergo significant changes throughout development and in response to neuromodulators such as serotonin. Here, we examined the age-related development of self-sustained firing and general excitability of tibialis anterior motoneurons in a young development (7-17 years), young adult (18-28 years) and adult (32-53 years) group, as well as in a separate group of participants taking selective serotonin reuptake inhibitors (SSRIs, aged 11-28 years). Self-sustained firing, as measured by ΔF, was larger in the young development (∼5.8 Hz, n = 20) compared to the young adult (∼4.9 Hz, n = 13) and adult (∼4.8 Hz, n = 8) groups, consistent with a developmental decrease in self-sustained firing mediated by persistent inward currents (PIC). ΔF was also larger in participants taking SSRIs (∼6.5 Hz, n = 9) compared to their age-matched controls (∼5.3 Hz, n = 26), consistent with increased levels of spinal serotonin facilitating the motoneuron PIC. Participants in the young development and SSRI groups also had higher firing rates and a steeper acceleration in initial firing rates (secondary ranges), consistent with the PIC producing a steeper acceleration in membrane depolarization at the onset of motoneuron firing. In summary, both the young development and SSRI groups exhibited increased intrinsic motoneuron excitability compared to the adults, which, in the young development group, was also associated with a larger unsteadiness in the dorsiflexion torque profiles. We propose several intrinsic and extrinsic factors that affect both motoneuron PICs and cell discharge which vary during development, with a time course similar to the changes in motoneuron firing behaviour observed in the present study. KEY POINTS: Neurons in the spinal cord that activate muscles in the limbs (motoneurons) undergo increases in excitability shortly after birth to help animals stand and walk. We examined whether the excitability of human ankle flexor motoneurons also continues to change from child to adulthood by recording the activity of the muscle fibres they innervate. Motoneurons in children and adolescents aged 7-17 years (young development group) had higher signatures of excitability that included faster firing rates and more self-sustained activity compared to adults aged ≥18 years. Participants aged 11-28 years of age taking serotonin reuptake inhibitors had the highest measures of motoneuron excitability compared to their age-matched controls. The young development group also had more unstable contractions, which might partly be related to the high excitability of the motoneurons.
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Affiliation(s)
- Ghazaleh Mohammadalinejad
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Babak Afsharipour
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Alex Yacyshyn
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Jennifer Duchcherer
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Jack Bashuk
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Erin Bennett
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Gregory E P Pearcey
- School of Human Kinetics and Recreation, Memorial University of Newfoundland, St John's Canada and Physical Therapy & Human Movement Sciences, Northwestern University, Chicago, IL, USA
| | - Francesco Negro
- Clinical and Experimental Sciences, Universita degli Studi di Brescia, Brescia, Italia
| | - Katharina A Quinlan
- George and Anne Ryan Institute for Neuroscience, Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI, USA
| | - David J Bennett
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, AB, Canada
| | - Monica A Gorassini
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, AB, Canada
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Sabbadin C, Marin L, Manso J, Mozzato C, Camozzi V, Andrisani A, Sacchetti C, Mian C, Scaroni C, Guazzarotti L, Ceccato F. Transition from pediatrics to adult health care in girls with turner syndrome. Expert Rev Endocrinol Metab 2024; 19:229-240. [PMID: 38664997 DOI: 10.1080/17446651.2024.2347265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 04/22/2024] [Indexed: 05/12/2024]
Abstract
INTRODUCTION Turner Syndrome is a rare condition secondary to a complete or partial loss of one X chromosome, leading to a wide spectrum of clinical manifestations. Short stature, gonadal dysgenesis, cardiovascular malformations, and dysmorphic features characterize its common clinical picture. AREAS COVERED The main endocrine challenges in adolescent girls with Turner Syndrome are puberty induction (closely intertwined with growth) and fertility preservation. We discuss the most important clinical aspects that should be faced when planning an appropriate and seamless transition for girls with Turner Syndrome. EXPERT OPINION Adolescence is a complex time for girls and boys: the passage to young adulthood is characterized by changes in the social, emotional, and educational environment. Adolescence is the ideal time to encourage the development of independent self-care behaviors and to make the growing girl aware of her health, thus promoting healthy lifestyle behaviors. During adulthood, diet and exercise are of utmost importance to manage some of the common complications that can emerge with aging. All clinicians involved in the multidisciplinary team must consider that transition is more than hormone replacement therapy: transition in a modern Healthcare Provider is a proactive process, shared between pediatric and adult endocrinologists.
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Affiliation(s)
- Chiara Sabbadin
- Endocrine Unit, Department of Medicine DIMED, University of Padova, Padova, Italy
- Endocrine Unit, University-Hospital of Padova, Padova, Italy
| | - Loris Marin
- Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Jacopo Manso
- Endocrine Unit, Department of Medicine DIMED, University of Padova, Padova, Italy
- Endocrine Unit, University-Hospital of Padova, Padova, Italy
- Pediatric Endocrinology and Adolescence Unit, Department of Women's and Children's Health, University-Hospital of Padova, Padova, Italy
| | - Chiara Mozzato
- Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Valentina Camozzi
- Endocrine Unit, Department of Medicine DIMED, University of Padova, Padova, Italy
- Endocrine Unit, University-Hospital of Padova, Padova, Italy
| | - Alessandra Andrisani
- Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Cinzia Sacchetti
- Associazione Famiglie di Soggetti con Deficit dell'Ormone della Crescita e altre Patologie Rare (AFADOC), Vicenza, Italy
| | - Caterina Mian
- Endocrine Unit, Department of Medicine DIMED, University of Padova, Padova, Italy
- Endocrine Unit, University-Hospital of Padova, Padova, Italy
| | - Carla Scaroni
- Endocrine Unit, Department of Medicine DIMED, University of Padova, Padova, Italy
- Endocrine Unit, University-Hospital of Padova, Padova, Italy
| | - Laura Guazzarotti
- Pediatric Endocrinology and Adolescence Unit, Department of Women's and Children's Health, University-Hospital of Padova, Padova, Italy
| | - Filippo Ceccato
- Endocrine Unit, Department of Medicine DIMED, University of Padova, Padova, Italy
- Endocrine Unit, University-Hospital of Padova, Padova, Italy
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Wang J, Tang Y, Chen G, Yang M, Gao Q, Wang Y, Zhou W. Irisin combined index to diagnose central precocious puberty in girls: a cross-sectional study. BMC Pediatr 2024; 24:275. [PMID: 38671415 PMCID: PMC11046821 DOI: 10.1186/s12887-024-04743-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND To investigate serum irisin levels in girls at different developmental status and explore the significance of irisin for the diagnosis of central precocious puberty (CPP) in girls. METHODS In this cross-sectional study 111 girls were enrolled, including 43 cases of CPP, 44 cases of peripheral precocious puberty (PPP) and 24 cases of girls with normal sexual development as controls. The data on age, weight and height, measured blood levels of luteinizing hormone (LH), follicle stimulating hormone (FSH), estradiol, and irisin were collected. Pelvic Doppler ultrasound was performed to evaluate uterine length, transverse diameter, anteroposterior diameter. The girls were divided into non-CPP group and CPP group according to gonadotropin-releasing hormone (GnRH) stimulation test. RESULTS Serum irisin levels were significantly higher in CPP group than in PPP group and normal control group. Serum irisin level was positively correlated with basal LH level, basal FSH level, peak LH level, peak LH /FSH ratio, uterine volume, bone age, and bone age index. The area under the curve, cut-off value, sensitivity and specificity of serum irisin were 0.958, 219.255 pg/ml, 100% and 80.6%. The combined diagnosis of CPP in girls by serum irisin and serum basal LH combined with uterine volume had an AUC, sensitivity, and specificity of 0.994, 97.6%, and 100%, superior to that of the single index. CONCLUSIONS Serum irisin level in girls with CPP is significantly increased. An irisin combined index could help the diagnosis of CPP in girls.
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Affiliation(s)
- Jie Wang
- Department of Pediatrics, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, China
| | - Yongquan Tang
- Department of Pediatrics, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, China
| | - Guanyu Chen
- Department of Pediatrics, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, China
| | - Mingming Yang
- Department of Pediatrics, Huai'an Clinical College of Xuzhou Medical University, Huai'an, 223300, China
| | - Qian Gao
- Department of Pediatrics, Huai'an Clinical College of Xuzhou Medical University, Huai'an, 223300, China
| | - Yingdan Wang
- Department of Pediatrics, Huai'an Clinical College of Xuzhou Medical University, Huai'an, 223300, China
| | - Wendi Zhou
- Department of Pediatrics, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, China.
- Department of Pediatrics, Huai'an Clinical College of Xuzhou Medical University, Huai'an, 223300, China.
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11
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Shultz SJ, Morrissey MC, Vauhnik R. Anterior knee laxity is greater in athletic females who attain menarche at a younger age. Knee Surg Sports Traumatol Arthrosc 2024; 32:889-895. [PMID: 38454787 DOI: 10.1002/ksa.12138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/13/2024] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
PURPOSE Females with above-average anterior knee laxity values are at increased risk of anterior cruciate ligament (ACL) injury. The purpose of this study was to examine the effects of menarche age (MA) and menarche offset on anterior knee laxity in young, physically active women. METHODS Anterior knee laxity (KT-2000) and menstrual characteristics (per self-report) were recorded in 686 Slovenian sportswomen from team handball, volleyball and basketball club sports (average years sport participation: 7.3 ± 3.6 years). Females were stratified into four groups based on their self-reported age at menarche: 9-11, 12, 13 and 14+ years. Anterior knee laxity was compared across MA groups using a univariate analysis of variance (ANOVA) with Bonferroni correction, with and without controlling for factors that could potentially differ between groups and influence anterior knee laxity. Females were then stratified into four groups based on the number of years they were away from their age at onset of menarche. Groups were compared using a univariate ANOVA with Bonferroni correction, with and without controlling for factors that differed between groups and could influence anterior knee laxity. RESULTS Anterior knee laxity was greater in females who attained menarche at 12 years of age (6.4 ± 1.5 mm) or younger (6.6 ± 1.6 mm) compared to 14 years of age or older (5.8 ± 1.2 mm) (p < 0.001; partial η2 = 0.032). Anterior knee laxity was 0.7-1.4 mm greater in females who were 5 or more years away from menarche compared to those who were within 2 years of menarche (5.8 ± 1.3 mm; p < 0.001). CONCLUSION Anterior knee laxity is greater in females who attained menarche at a younger age and in females who are 5 or more years postmenarche. Age of menarche represents a critical pubertal event that is easy for women to recall and may provide important insights into factors that moderate anterior knee laxity, a risk factor for ACL injury in women. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Sandra J Shultz
- Department of Kinesiology, University of North Carolina, Greensboro, Greensboro, North Carolina, USA
| | - Matthew C Morrissey
- Biomechanical Laboratory, Department of Physiotherapy, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - Renata Vauhnik
- Biomechanical Laboratory, Department of Physiotherapy, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
- Arthron, Institute for Joint and Sports Injuries, Ljubljana, Slovenia
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Unnithan VB, Beaumont A, Rowland T, George K, Stewart L, Sculthorpe N, Lord RN, Oxborough DL. The effect of long-term soccer training on left ventricular structure and function in elite male youth soccer players. Scand J Med Sci Sports 2024; 34:e14594. [PMID: 38454596 DOI: 10.1111/sms.14594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/05/2024] [Accepted: 02/26/2024] [Indexed: 03/09/2024]
Abstract
AIMS Cardiac adaptations in elite, male adolescent youth soccer players have been demonstrated in relation to training status. The time course of these adaptations and the delineation of the influence of volatile growth phases from the training effect on these adaptations remain unclear. Consequently, the aims of the study were to evaluate the impact of 3 years of elite-level soccer training on changes in left ventricular (LV) structure and function in a group of highly trained elite youth male soccer players (SP) as they transitioned through the pre-to-adolescent phase of their growth. METHODS Twenty-two male youth SP from the highest Level of English Premier League Academy U-12 teams were evaluated once a year for three soccer seasons as the players progressed from the U-12 to U-14 teams. Fifteen recreationally active control participants (CON) were also evaluated over the same 3-year period. Two-dimensional transthoracic echocardiography was used to quantify LV structure and function. RESULTS After adjusting for the influence of growth and maturation, training-induced increases in Years 2 and 3 were noted for: LV end diastolic volume (LVEDV; p = 0.02) and LV end systolic volume (LVESV; p = 0.02) in the SP compared to CON. Training-induced decrements were noted for LV ejection fraction (LVEF; p = 0.006) and TDI-S' (p < 0.001). CONCLUSIONS An increase in training volume (Years 2 and 3) were aligned with LV volumetric adaptations and decrements in systolic function in the SP that were independent from the influence of rapid somatic growth. Decrements in systolic function were suggestive of a functional reserve for exercise.
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Affiliation(s)
- Viswanath B Unnithan
- Division of Sport and Exercise, School of Health and Life Sciences, Sport and Physical Activity Research Institute, University of the West of Scotland, Hamilton, UK
| | - Alexander Beaumont
- School of Science, Technology and Health, York St. John University, York, UK
| | - Thomas Rowland
- Division of Sport and Exercise, School of Health and Life Sciences, Sport and Physical Activity Research Institute, University of the West of Scotland, Hamilton, UK
| | - Keith George
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Laura Stewart
- School of Computing, Engineering, and Physical Sciences, University of the West of Scotland, Paisley, UK
| | - Nicholas Sculthorpe
- Division of Sport and Exercise, School of Health and Life Sciences, Sport and Physical Activity Research Institute, University of the West of Scotland, Hamilton, UK
| | - Rachel N Lord
- Cardiff Centre for Health, Activity and Wellbeing Research, Cardiff Metropolitan University, Cardiff, UK
| | - David L Oxborough
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
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13
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Gunawan SP, Huang SY, Wang CC, Huynh LBP, Nguyen NN, Hsu SY, Chen YC. Sleep deprivation alters pubertal timing in humans and rats: the role of the gut microbiome. Sleep 2024; 47:zsad308. [PMID: 38065690 DOI: 10.1093/sleep/zsad308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/27/2023] [Indexed: 02/09/2024] Open
Abstract
STUDY OBJECTIVES Evidence implied that sleeping duration is associated with the timing of puberty and that sleep deprivation triggers early pubertal onset in adolescents. Sleep deprivation can affect metabolic changes and gut microbiota composition. This study investigated the effects of sleep deprivation on pubertal onset and gut microbiota composition in animal models and a human cohort. METHODS This study comprised 459 boys and 959 girls from the Taiwan Pubertal Longitudinal Study. Sleep duration was evaluated using the self-report Pittsburgh Sleep Quality Index questionnaire. Early sexual maturation was defined by pediatric endocrinologist assessments. Mediation analyses were done to examine the association between sleep parameters, obesity, and early sexual maturation. Besides, Sprague Dawley juvenile rats were exposed to 4 weeks of chronic sleep deprivation. Vaginal opening (VO) and preputial separation (PS) were observed every morning to determine pubertal onset in female and male rats. RESULTS The sleep-deprived juvenile rats in the sleep-deprived-female (SDF) and sleep-deprived-male (SDM) groups experienced delayed VO (mean VO days: 33 days in control; 35 days in SDF; p-value < 0.05) and PS (mean PS days: 42 days in control; 45 days in SDM; p-value < 0.05), respectively. Relative to their non-sleep-deprived counterparts, the sleep-deprived juvenile rats exhibited lower body weight and body fat percentage. Significant differences in relative bacterial abundance at genus levels and decreased fecal short-chain-fatty-acid levels were identified in both the SDF and SDM groups. In the human cohort, insufficient sleep increased the risk of early sexual maturation, particularly in girls (OR, 1.44; 95% CI: 1.09 to 1.89; p-value < 0.01). Insufficient sleep also indirectly affected early sexual maturation in girls, with obesity serving as the mediator. CONCLUSIONS Overall, sleep deprivation altered the timing of puberty in both animal and human models but in different directions. In the rat model, sleep deprivation delayed the pubertal onset in juvenile rats through gut dysbiosis and metabolic changes, leading to a low body weight and body fat percentage. In the human model, sleep deprivation led to fat accumulation, causing obesity in girls, which increased the risk of early puberty.
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Affiliation(s)
| | - Shih-Yi Huang
- Graduate Institute of Metabolism and Obesity Sciences Taipei Medical University, Taipei, Taiwan
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Chun-Chi Wang
- Department of Family Medicine, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Linh Ba Phuong Huynh
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Nam Nhat Nguyen
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shih-Yuan Hsu
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yang-Ching Chen
- Graduate Institute of Metabolism and Obesity Sciences Taipei Medical University, Taipei, Taiwan
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Family Medicine, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Orszulak D, Niziński K, Bil A, Gawlik A, Ziora K, Drosdzol-Cop A. The effect of gonadoliberin analog treatment in precocious puberty on polycystic ovarian syndrome prevalence in adulthood. Front Endocrinol (Lausanne) 2024; 15:1314752. [PMID: 38327564 PMCID: PMC10847246 DOI: 10.3389/fendo.2024.1314752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/04/2024] [Indexed: 02/09/2024] Open
Abstract
Precocious puberty is diagnosed when pubertal characteristics appear before the age of 8 years in females. The most common form is gonadotropin-dependent, called axial. The primary method of treatment is administration of gonadotrophin-releasing hormone analogues (GnRHa). The aim of the study was to verify hypothesis that GnRHa therapy in the childhood may be of additive risk factor for polycystic ovary syndrome (PCOS) in adulthood. Material and Methods The study group consists of 24 women (median age 22 88 years, median BMI 23.5) treated with GnRHa for central precocious puberty in childhood. The control group includes 40 women (median age 23 years, median BMI 25.6) diagnosed with isolated premature thelarche and not using GnRHa in the childhood. Anthropometric measurements, ultrasound examination of minor pelvis and hormonal profile were performed. PCOS diagnosis was based on Rotterdam criteria. Results The study confirmed a higher prevalence of PCOS in the study group (50%) than in the control group (10%); p=0.0006. Significant, linear correlation between free testosterone levels and ovarian size was found in the study group (R=0.45 p= 0.03). Conclusions GnRHa therapy during childhood may have a potential influence on incidence of PCOS in the adulthood. Therefore, in this group of patients long-term follow-up focused on screening for PCOS would seem beneficial.
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Affiliation(s)
- Dominika Orszulak
- Department of Gynaecology, Obstetrics and Oncological Gynaecology, Medical University of Silesia in Katowice, Katowice, Poland
| | - Kacper Niziński
- Department of Gynaecology, Obstetrics and Oncological Gynaecology, Medical University of Silesia in Katowice, Katowice, Poland
| | - Adriana Bil
- Department of Gynecology and Obstetrics, Andrzej Frycz Modrzewski Cracow University, Cracow, Poland
| | - Aneta Gawlik
- Department of Pediatrics and Pediatric Endocrinology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Katarzyna Ziora
- Department of Paediatrics, Faculty of Medical Science in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Agnieszka Drosdzol-Cop
- Department of Gynaecology, Obstetrics and Oncological Gynaecology, Medical University of Silesia in Katowice, Katowice, Poland
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Aref Y, Fat SC, Ray E. Recent insights into the role of hormones during development and their functional regulation. Front Endocrinol (Lausanne) 2024; 15:1340432. [PMID: 38318293 PMCID: PMC10841574 DOI: 10.3389/fendo.2024.1340432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Introduction Hormones play a vital role in development from conception to birth and throughout the human lifespan. These periods are logically divided into fetal development, pre-pubertal growth, puberty, and adulthood. Deviations from standard physiological levels and release patterns of constituent hormones can lead to pathology affecting the normal developmental trajectory. Research is ongoing to better understand the mechanisms of these hormones and how their modulation affects development. Methods This article focuses on recent developments in understanding the role hormones play in development. We also cover recent discoveries in signaling pathways and hormonal regulation. Results New and continuing research into functional hormone regulation focuses on sex hormones, gonadotropic hormones, growth hormones, insulin-like growth factor, thyroid hormone, and the interconnectedness of each of these functional axes. Currently, the abundance of work focuses on fertility and correction of sex hormone levels based on an individual's condition and stage in life. Discussion Continuing research is needed to fully understand the long-term effects of hormone modulation in growth and sexual development. The role of each hormone in parallel endocrine axes should also be more thoroughly investigated to help improve the safety and efficacy in endocrine pharmacotherapeutics.
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Affiliation(s)
| | | | - Edward Ray
- Cedars-Sinai Medical Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, Los Angeles, CA, United States
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Ludar H, Levy-Shraga Y, Admoni O, Majdoub H, Aronovitch KM, Koren I, Rath S, Elias-Assad G, Almashanu S, Mantovani G, Hamiel OP, Tenenbaum-Rakover Y. Clinical and Molecular Characteristics and Long-term Follow-up of Children With Pseudohypoparathyroidism Type IA. J Clin Endocrinol Metab 2024; 109:424-438. [PMID: 37669316 DOI: 10.1210/clinem/dgad524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/07/2023]
Abstract
CONTEXT Pseudohypoparathyroidism type IA (PHPIA) is a rare genetic disorder characterized by hormone resistance and a typical phenotype named Albright hereditary osteodystrophy. Unawareness of this rare disease leads to delays in diagnosis. OBJECTIVE The aims of this study were to describe the clinical and molecular characteristics of patients with genetically confirmed GNAS mutations and to evaluate their long-term outcomes. METHODS A retrospective search for all patients diagnosed with PHPIA in 2 referral centers in Israel was conducted. RESULTS Nine children (8 females) belonging to 6 families were included in the study. Five patients had GNAS missense mutations, 2 had deletions, and 2 had frameshift mutations. Four mutations were novel. Patients were referred at a mean age of 2.4 years due to congenital hypothyroidism (5 patients), short stature (2 patients), or obesity (2 patients), with a follow-up duration of up to 20 years. Early obesity was observed in the majority of patients. Elevated parathyroid hormone was documented at a mean age of 3 years; however, hypocalcemia became evident at a mean age of 5.9 years, about 3 years later. All subjects were diagnosed with mild to moderate mental retardation. Female adult height was very short (mean -2.5 SD) and 5 females had primary or secondary amenorrhea. CONCLUSION Long-term follow-up of newborns with a combination of congenital hypothyroidism, early-onset obesity, and minor dysmorphic features associated with PHPIA is warranted and molecular analysis is recommended since the complete clinical phenotype may develop a long time after initial presentation.
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Affiliation(s)
- Hanna Ludar
- Pediatric Endocrinology and Diabetes Unit, Clalit Health Services, 35024 Haifa and Western Galilee District, Israel
| | - Yael Levy-Shraga
- Pediatric Endocrinology and Diabetes Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, 52620 Ramat-Gan, Israel
- Sackler School of Medicine, Tel-Aviv University, 69978 Tel-Aviv, Israel
| | - Osnat Admoni
- Pediatric Endocrine Clinic, Clalit Health Services, 17673 Northern Region, Israel
| | - Hussein Majdoub
- Pediatric Endocrinology and Diabetes Unit, Clalit Health Services, 35024 Haifa and Western Galilee District, Israel
| | - Kineret Mazor Aronovitch
- Pediatric Endocrinology and Diabetes Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, 52620 Ramat-Gan, Israel
- Sackler School of Medicine, Tel-Aviv University, 69978 Tel-Aviv, Israel
| | - Ilana Koren
- Pediatric Endocrinology and Diabetes Unit, Clalit Health Services, 35024 Haifa and Western Galilee District, Israel
- The Rappaport Faculty of Medicine, Technion, Institute of Technology, 32000 Haifa, Israel
| | - Shoshana Rath
- Pediatric Endocrine Clinic, Clalit Health Services, 17673 Northern Region, Israel
- Endocrinology and Diabetes Service, Tzafon Medical Center, 15208 Teveria, Israel
| | - Ghadir Elias-Assad
- Pediatric Endocrine Clinic, Clalit Health Services, 17673 Northern Region, Israel
- Pediatric Endocrine Institute, Saint Vincent Hospital, 16511 Nazareth, Israel
| | - Shlomo Almashanu
- The National Newborn Screening Program, Ministry of Health, Tel Hashomer, 52620 Ramat Gan, Israel
| | - Giovanna Mantovani
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Endocrinology Unit, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Orit Pinhas Hamiel
- Pediatric Endocrinology and Diabetes Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, 52620 Ramat-Gan, Israel
- Sackler School of Medicine, Tel-Aviv University, 69978 Tel-Aviv, Israel
| | - Yardena Tenenbaum-Rakover
- The Rappaport Faculty of Medicine, Technion, Institute of Technology, 32000 Haifa, Israel
- Consulting Medicine in Pediatric Endocrinology, Clalit Health Services, 18343 Afula, Israel
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17
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Wettengl C, Karlsson R, Olstad BH, Gonjo T. Load-Velocity Profile and Active Drag in Young Female Swimmers: An Age-Group Comparison. Int J Sports Physiol Perform 2024; 19:44-52. [PMID: 37857381 DOI: 10.1123/ijspp.2022-0213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/09/2023] [Accepted: 09/16/2023] [Indexed: 10/21/2023]
Abstract
PURPOSE The present study aimed to establish differences in load-velocity profiling, active drag (AD), and drag coefficient (Cd) between 3 age groups of female swimmers. METHODS Thirty-three swimmers (11, 13, or 16 y old) were recruited. The individual load-velocity profile was determined for the 4 competitive swimming strokes. The maximal velocity (V0), maximal load (L0), L0 normalized to the body mass, AD, and Cd were compared between the groups. A 2-way analysis of variance and correlation analysis were conducted. RESULTS Compared with their younger counterparts, 16-year-old swimmers generally had larger V0, L0, and AD, which was particularly evident when comparing them with 11-year-old swimmers (P ≤ .052). The exception was breaststroke, where no differences were observed in L0 and AD and Cd was smaller in the 16-year-old group than the 11-year-old group (P = .03). There was a negative correlation between Cd and V0 for all groups in backstroke (P ≤ .038) and for the 11-year-old group and 13-year-old group in breaststroke (P ≤ .022) and front crawl (P ≤ .010). For the 16-year-old group, large correlations with V0 were observed for L0, L0 normalized to the body mass, and AD (P ≤ .010) in breaststroke and for L0 and AD with V0 in front crawl (P ≤ .042). In butterfly, large negative correlations with V0 were observed in the 13-year-old group for all parameters (P ≤ .027). CONCLUSIONS Greater propulsive force is likely the factor that differentiates the oldest age group from the younger groups, except for breaststroke, where a lower Cd (implying a better technique) is evident in the oldest group.
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Affiliation(s)
- Christina Wettengl
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
- Institute for Physiotherapy, Zurich University of Applied Sciences, Winterthur, Switzerland
| | - Rebecca Karlsson
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Bjørn H Olstad
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Tomohiro Gonjo
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
- Department of Rehabilitation and Sport Sciences, Bournemouth University, Poole, United Kingdom
- School of Energy, Geoscience, Infrastructure and Society, Institute for Life and Earth Sciences, Heriot-Watt University, Edinburgh, United Kingdom
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Bindels-de Heus KGCB, Hagenaar DA, Mous SE, Dekker I, van der Kaay DCM, Kerkhof GF, Elgersma Y, Moll HA, de Wit MCY. Bone health in children with Angelman syndrome at the ENCORE Expertise Center. Eur J Pediatr 2024; 183:103-111. [PMID: 37831301 PMCID: PMC10857954 DOI: 10.1007/s00431-023-05231-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023]
Abstract
Angelman syndrome (AS) is a rare genetic disorder due to lack of UBE3A function on chromosome 15q11.2q13 caused by a deletion, uniparental paternal disomy (UPD), imprinting center disorder (ICD), or pathological variant of the UBE3A gene. AS is characterized by developmental delay, epilepsy, and lack of speech. Although fractures are observed frequently in our clinical practice, there are few studies on bone health in AS. The aim of this study is to investigate bone health in children with AS. In this prospective cohort study, we describe bone health in 91 children with AS visiting the ENCORE Expertise Center for AS between April 2010 and December 2021. Bone health was assessed with the bone health index (BHI) in standard deviation score (SDS) measured by digital radiogrammetry of the left hand using BoneXpert software. Risk factors analyzed were age, sex, genetic subtype, epilepsy, anti-seizure medication use, mobility, body mass index (BMI), and onset of puberty. Children with AS had a mean BHI of -1.77 SDS (SD 1.4). A significantly lower BHI was found in children with a deletion (-2.24 SDS) versus non-deletion (-1.02 SDS). Other factors associated with reduced BHI-SDS were inability to walk and late onset of puberty. Children with a history of one or more fractures (22%) had a significantly lower BHI than children without fractures (-2.60 vs -1.56 SDS). Longitudinal analysis showed a significant decrease in BHI-SDS with age in all genetic subtypes. Conclusions: Children with AS have a reduced bone health. Risk factors are deletion genotype, no independent walking, and late onset of puberty. Bone health decreased significantly with age. What is Known: • Children with neurological disorders often have a low bone health and higher risk of fractures. • Little is known about bone health in children with Angelman syndrome (AS). What is New: • Children with AS showed a reduced bone health and this was significantly associated with having a deletion, not being able to walk independently, and late onset of puberty. • Longitudinal analysis showed a significant decrease in bone health as children got older.
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Affiliation(s)
- Karen G C B Bindels-de Heus
- Dept. of Pediatrics, Erasmus MC Sophia Children's Hospital, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, The Netherlands.
| | - Doesjka A Hagenaar
- Dept. of Pediatrics, Erasmus MC Sophia Children's Hospital, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, The Netherlands
- Dept. of Child- and Adolescent Psychiatry and Psychology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Sabine E Mous
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, The Netherlands
- Dept. of Child- and Adolescent Psychiatry and Psychology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Ilonka Dekker
- Dept. of Pediatrics, Erasmus MC Sophia Children's Hospital, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | | | - Gerthe F Kerkhof
- Dept. of Pediatric Endocrinology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Ype Elgersma
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, The Netherlands
- Dept. of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Henriette A Moll
- Dept. of Pediatrics, Erasmus MC Sophia Children's Hospital, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, The Netherlands
| | - Marie-Claire Y de Wit
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, The Netherlands
- Dept. of Neurology and Pediatric Neurology, Erasmus MC, Rotterdam, The Netherlands
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19
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Carson MD, Westwater C, Novince CM. Adolescence and the Microbiome: Implications for Healthy Growth and Maturation. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1900-1909. [PMID: 37673331 PMCID: PMC10699129 DOI: 10.1016/j.ajpath.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 09/08/2023]
Abstract
The gut microbiota was initially thought to develop into a stable, adult-like profile during early postnatal life. The formation of the gut microbiota during early life has been shown to contribute to healthy growth and has lifelong implications for host health. Adolescence, the developmental period between childhood and adulthood, is a critical window for healthy growth and maturation. The composition of the gut microbiota in adolescents is distinct from that of children and adults, which supports the premise that the gut microbiota continues to develop during adolescence toward an adult-like profile. Research has begun to shift its focus from understanding the gut microbiome at the extremes of the life span to evaluating the importance of the gut microbiome during adolescence and its role in healthy development. This article provides an overview of adolescent development, host-microbiota interactions, and experimental models used to discern effects of gut microbiota on health and disease. Herein, the role of the gut microbiota is reviewed as it relates to adolescent: i) brain development, cognition, and behavior; ii) metabolism and adiposity; and iii) skeletal growth and bone mass accrual. Future directions are addressed, including omics investigations defining mechanisms through which the gut microbiota influences adolescent development. Furthermore, we discuss advancing noninvasive interventions targeting the adolescent gut microbiota that could be employed to support healthy growth and maturation.
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Affiliation(s)
- Matthew D Carson
- Departments of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Caroline Westwater
- Departments of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina; Department of Microbiology and Immunology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Chad M Novince
- Departments of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina; Division of Endocrinology, Department of Pediatrics, College of Medicine, Medical University of South Carolina, Charleston, South Carolina; Division of Periodontics, Department of Stomatology, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina.
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20
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Burlo F, Lorenzon B, Tamaro G, Fabretto A, Buonomo F, Peinkhofer M, Vidonis V, Vittori G, Faleschini E, Barbi E, Tornese G. Prevalence and characteristics of thelarche variant. Front Endocrinol (Lausanne) 2023; 14:1303989. [PMID: 38107513 PMCID: PMC10722224 DOI: 10.3389/fendo.2023.1303989] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/17/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction Girls with early thelarche may show an intermediate clinical picture between isolated premature thelarche (PT) and central precocious puberty (CPP), defined as "thelarche variant" (TV), characterized by an FSH-predominant response, although a univocal definition is lacking. Methods Retrospective analysis on 91 girls with early thelarche (<8 years) and advanced bone age and/or accelerated growth who underwent 104 LHRH tests. Patients were classified into CPP (LH peak ≥5 IU/L; n = 28, 31%), TV (FSH peak ≥20 IU/L, LH peak <5 IU/L; n = 15, 16%), or PT (FSH peak <20 IU/L and LH peak <5 IU/L; n = 48, 53%). Results TV patients were younger (5.51 years) and with less advanced bone age (+0.8 years). They had higher basal and peak FSH (2.5 and 26.6 IU/L) and lower basal and peak LH/FSH ratios (0.08 and 0.11). The prevalence of presence of ovarian follicles >5 mm in TV (42%) was similar to CPP but significantly higher than PT, whereas maximum ovarian volume was smaller in TV (1.0 cm3). At the last follow-up visit (available in 60% of the cases), 44% of TV developed CPP compared with 14% of PT (p = 0.04). At first evaluation, those who progressed to CPP had a higher basal FSH (3.2 IU/L), lower LH/FSH ratio (0.07), and a higher peak LH (4.1 IU/L) compared with those who did not progress to CPP (basal FSH 1.9 IU/L, p < 0.01; basal LH/FSH ratio 0.12, p < 0.01; peak LH 2.8 IU/L, p = 0.02). Conclusion Using laboratory parameters only as a definition, we identified the clinical, laboratory, and imaging features of TV: these girls showed less advanced bone age and FSH predominance also at baseline, with smaller ovaries but with follicles >5 mm. Almost half of girls initially diagnosed as TV developed CPP at last follow-up visit, and these girls had higher baseline FSH, lower baseline LH/FSH ratio, and higher peak LH at first evaluation. Therefore, TV may represent a "precocious prepuberty" in which the FSH predominance may initially limit the progression into proper puberty, but it may eventually trigger full puberty (even CPP, depending on the girls' age).
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Affiliation(s)
- Francesca Burlo
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Beatrice Lorenzon
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Gianluca Tamaro
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Antonella Fabretto
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Francesca Buonomo
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Martina Peinkhofer
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Viviana Vidonis
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Giada Vittori
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Elena Faleschini
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Egidio Barbi
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Gianluca Tornese
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
- Institute for Maternal and Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
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21
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Micangeli G, Paparella R, Tarani F, Menghi M, Ferraguti G, Carlomagno F, Spaziani M, Pucarelli I, Greco A, Fiore M, Tarani L. Clinical Management and Therapy of Precocious Puberty in the Sapienza University Pediatrics Hospital of Rome, Italy. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1672. [PMID: 37892335 PMCID: PMC10604951 DOI: 10.3390/children10101672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/28/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023]
Abstract
Puberty identifies the transition from childhood to adulthood. Precocious puberty is the onset of signs of pubertal development before age eight in girls and before age nine in boys, it has an incidence of 1/5000-1/10,000 with an F:M ratio ranging from 3:1 to 20:1. Precocious puberty can be divided into central, also known as gonadotropin-dependent precocious puberty or true precocious puberty, and peripheral, also recognized as gonadotropin-independent precocious puberty or precocious pseudopuberty. Thus, the main aim of this narrative report is to describe the standard clinical management and therapy of precocious puberty according to the experience and expertise of pediatricians and pediatric endocrinologists at Policlinico Umberto I, Sapienza University of Rome, Italy. In the suspicion of early sexual maturation, it is important to collect information regarding the age of onset, the speed of maturation of secondary sexual features, exposure to exogenous sex steroids and the presence of neurological symptoms. The objective examination, in addition to the evaluation of secondary sexual characteristics, must also include the evaluation of auxological parameters. Initial laboratory investigations should include serum gonadotropin levels (LH and FSH) and serum levels of the sex steroids. Brain MRI should be performed as indicated by the 2009 Consensus Statement in all boys regardless of chronological age and in all girls with onset of pubertal signs before 6 years of age. The gold standard in the treatment of central precocious puberty is represented by GnRH analogs, whereas, as far as peripheral forms are concerned, the triggering cause must be identified and treated. At the moment there are no reliable data establishing the criteria for discontinuation of GnRH analog therapy. However, numerous pieces of evidence suggest that the therapy should be suspended at the physiological age at which puberty occurs.
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Affiliation(s)
- Ginevra Micangeli
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (R.P.)
| | - Roberto Paparella
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (R.P.)
| | - Francesca Tarani
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (R.P.)
| | - Michela Menghi
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (R.P.)
| | - Giampiero Ferraguti
- Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (F.C.); (M.S.)
| | - Francesco Carlomagno
- Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (F.C.); (M.S.)
| | - Matteo Spaziani
- Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (F.C.); (M.S.)
| | - Ida Pucarelli
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (R.P.)
| | - Antonio Greco
- Department of Sensory Organs, Sapienza University of Rome, 00185 Rome, Italy
| | - Marco Fiore
- Institute of Biochemistry and Cell Biology, IBBC-CNR, 00185 Rome, Italy
| | - Luigi Tarani
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy (R.P.)
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22
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Hernández-Pérez JG, López DS, Rodríguez-Valentín R, Vázquez-Salas RA, Sierra-Santoyo A, Torres-Sánchez L. Late puberty onset and lack of acne during adolescence reduce high-grade prostate cancer at adulthood. Prostate 2023; 83:1342-1350. [PMID: 37415324 DOI: 10.1002/pros.24596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/31/2023] [Accepted: 06/27/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND The interplay between pubertal events patterns (PEP) and prostate cancer (PCa) remains poorly understood. Therefore, we investigated the association of PEP with the odds of PCa, and PCa histological differentiation in men residents of Mexico city. METHODS In this case-control study, we analyzed the information of 371 incident prostate cancer cases and 775 controls matched on age (±5 years). High-grade prostate cancer was classified with Gleason score at diagnosis as ≥8. With information related to beard growth, age at maximum height attainment, and acne severity, the k-medoids algorithm was used to identify three mutually exclusive PEP (early, intermediate, and late). This association was evaluated using multivariable nonconditional logistic regression models. RESULTS Men with late PEP, characterized by age at maximum height attainment at around 23 years and no history of acne, was inversely associated with incident (odds ratio [OR]: 0.27; 95% confidence interval [CI]: 0.15-0.48, p trend <0.01) and high-grade prostate cancer (OR: 0.24; 95% CI: 0.09-0.59, p trend <0.01). Similar associations were observed even after adjusting by IGF-1 (OR: 0.19; 95% CI: 0.06-0.58) and androgens excretion (OR: 0.21; 95% CI: 0.06-0.66). Only the association between the absence of acne and prostate cancer remained significant after adjustment by these biomarkers. CONCLUSIONS This study suggests that pubertal characteristics might be helpful in identifying risk groups, among which, secondary prevention strategies could be applied. Also, the results agree with previous work suggesting other potential biological mechanisms involved in the etiology of prostate cancer such as the infectious and inflammatory pathways.
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Affiliation(s)
| | - David S López
- Department of Epidemiology, School of Public and Population Health, The University of Texas Medical Branch, Galveston, Texas, USA
| | - Rocío Rodríguez-Valentín
- Center for Population Health Research, National Institute of Public Health (INSP), Cuernavaca, Morelos, México
| | - Ruth Argelia Vázquez-Salas
- Center for Population Health Research, National Institute of Public Health (INSP), Cuernavaca, Morelos, México
| | - Adolfo Sierra-Santoyo
- Department of Toxicology, Center for Research and Advanced Studies of the National Polytechnic Institute (Cinvestav-IPN), Mexico City, Mexico
| | - Luisa Torres-Sánchez
- Center for Population Health Research, National Institute of Public Health (INSP), Cuernavaca, Morelos, México
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23
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Bindels-de Heus KGCB, Hagenaar DA, Dekker I, van der Kaay DCM, Kerkhof GF, Elgersma Y, de Wit MCY, Mous SE, Moll HA. Hyperphagia, Growth, and Puberty in Children with Angelman Syndrome. J Clin Med 2023; 12:5981. [PMID: 37762921 PMCID: PMC10532359 DOI: 10.3390/jcm12185981] [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: 07/28/2023] [Revised: 09/05/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Angelman Syndrome (AS) is a rare genetic disorder caused by lack of maternal UBE3A protein due to a deletion of the chromosome 15q11.2-q13 region, uniparental paternal disomy, imprinting center defect, or pathogenic variant in the UBE3A gene. Characteristics are developmental delay, epilepsy, behavioral, and sleep problems. There is some evidence for hyperphagia, shorter stature, and higher BMI compared to neurotypical children, but longitudinal studies on growth are lacking. In this study, we analyzed prospectively collected data of 145 children with AS, who visited the ENCORE Expertise Center between 2010 and 2021, with a total of 853 visits. Children showed an elevated mean score of 25 on the Dykens Hyperphagia questionnaire (range 11-55) without genotype association. Higher scores were significantly associated with higher body mass index (BMI) standard deviation scores (SDS) (p = 0.004). Mean height was -1.2 SDS (SD 1.3), mean BMI-SDS was 0.6 (SD 1.7); 43% had a BMI-SDS > 1 and 20% had a BMI-SDS > 2. Higher BMI-SDS was significantly associated with non-deletion genotype (p = 0.037) and walking independently (p = 0.023). Height SDS decreased significantly with age (p < 0.001) and BMI-SDS increased significantly with age (p < 0.001. Onset of puberty was normal. In conclusion, children with AS showed moderate hyperphagia, lower height SDS, and higher BMI-SDS compared to norm data, with increasing deviation from the norm with age. It is uncertain how loss of maternal UBE3A function may influence growth. Attention to diet, exercise, and hyperphagia from an early age is recommended to prevent obesity and associated health problems.
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Affiliation(s)
- Karen G. C. B. Bindels-de Heus
- Department of Pediatrics, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.A.H.); (I.D.); (H.A.M.)
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands (M.-C.Y.d.W.); (S.E.M.)
| | - Doesjka A Hagenaar
- Department of Pediatrics, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.A.H.); (I.D.); (H.A.M.)
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands (M.-C.Y.d.W.); (S.E.M.)
- Department of Child- and Adolescent Psychiatry and Psychology, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Ilonka Dekker
- Department of Pediatrics, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.A.H.); (I.D.); (H.A.M.)
| | - Danielle C. M. van der Kaay
- Department of Pediatric Endocrinology, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.C.M.v.d.K.); (G.F.K.)
| | - Gerthe F. Kerkhof
- Department of Pediatric Endocrinology, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.C.M.v.d.K.); (G.F.K.)
| | - ENCORE Expertise Center for AS
- ENCORE Expertise Center for Neurodevelopmental Disorders, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Ype Elgersma
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands (M.-C.Y.d.W.); (S.E.M.)
- Department of Clinical Genetics, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Marie-Claire Y. de Wit
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands (M.-C.Y.d.W.); (S.E.M.)
- Department of Neurology and Pediatric Neurology, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Sabine E. Mous
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands (M.-C.Y.d.W.); (S.E.M.)
- Department of Child- and Adolescent Psychiatry and Psychology, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Henriette A. Moll
- Department of Pediatrics, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.A.H.); (I.D.); (H.A.M.)
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands (M.-C.Y.d.W.); (S.E.M.)
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24
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Burns JS, Bather JR, Sergeyev O, Lee MM, Korrick SA, Sokolov S, Kovalev S, Koch HM, Lebedev AT, Mínguez-Alarcón L, Hauser R, Williams PL. Longitudinal association of prepubertal urinary phthalate metabolite concentrations with pubertal progression among a cohort of boys. ENVIRONMENTAL RESEARCH 2023; 233:116330. [PMID: 37348639 PMCID: PMC10575624 DOI: 10.1016/j.envres.2023.116330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/19/2023] [Accepted: 06/03/2023] [Indexed: 06/24/2023]
Abstract
BACKGROUND Epidemiological studies have reported associations of anti-androgenic phthalate metabolite concentrations with later onset of male puberty, but few have assessed associations with progression. OBJECTIVES We examined the association of prepubertal urinary phthalate metabolite concentrations with trajectories of pubertal progression among Russian boys. METHODS At enrollment (ages 8-9 years), medical history, dietary, and demographic information were collected. At entry and annually to age 19 years, physical examinations including testicular volume (TV) were performed and spot urines collected. Each boy's prepubertal urine samples were pooled, and 15 phthalate metabolites were quantified by isotope dilution LC-MS/MS at Moscow State University. Metabolites of anti-androgenic parent phthalates were included: butylbenzyl (BBzP), di-n-butyl (DnBP), diisobutyl (DiBP), di(2-ethylhexyl) (DEHP) and diisononyl (DiNP) phthalates. We calculated the molar sums of DEHP, DiNP, and all AAP metabolites. We used group-based trajectory models (GBTMs) to identify subgroups of boys who followed similar pubertal trajectories from ages 8-19 years based on annual TV. We used multinomial and ordinal regression models to evaluate whether prepubertal log-transformed phthalate metabolite concentrations were associated with slower or faster pubertal progression trajectories, adjusting for covariates. RESULTS 304 boys contributed a total of 752 prepubertal urine samples (median 2, range: 1-6) for creation of individual pools. The median length of follow-up was 10.0 years; 79% of boys were followed beyond age 15. We identified three pubertal progression groups: slower (34%), moderate (43%), and faster (23%) progression. A standard deviation increase in urinary log-monobenzyl phthalate (MBzP) concentrations was associated with higher adjusted odds of being in the slow versus faster pubertal progression trajectory (aOR 1.47, 95% CI 1.06-2.04). None of the other phthalate metabolites were associated with pubertal progression. CONCLUSIONS On average, boys with higher concentrations of prepubertal urinary MBzP had a slower tempo of pubertal progression, perhaps attributable to the disruption of androgen-dependent biological pathways.
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Affiliation(s)
- J S Burns
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA.
| | - J R Bather
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 2, 4th Floor, Boston, MA, 02115, USA
| | - O Sergeyev
- Group of Epigenetic Epidemiology, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, Room 322, 119992, Moscow, Russia
| | - M M Lee
- Nemours Children's Health/Sidney Kimmel Medical School, Jefferson University, 1600 Rockland Road, Wilmington, DE, USA
| | - S A Korrick
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 401 Park Drive, 3rd Floor West, Boston, MA, 02215, USA
| | - S Sokolov
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russia
| | - S Kovalev
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russia
| | - H M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - A T Lebedev
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russia
| | - L Mínguez-Alarcón
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 401 Park Drive, 3rd Floor West, Boston, MA, 02215, USA
| | - R Hauser
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health Kresge Building, 9th Floor, Boston, MA, 02115, USA
| | - P L Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 2, 4th Floor, Boston, MA, 02115, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health Kresge Building, 9th Floor, Boston, MA, 02115, USA
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25
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Riederer MF. Growth Spurts and Athletic Training. Sports Health 2023; 15:631-632. [PMID: 37643012 PMCID: PMC10467480 DOI: 10.1177/19417381231187909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023] Open
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Calcaterra V, Magenes VC, Tagi VM, Grazi R, Bianchi A, Cena H, Zuccotti G, Fabiano V. Association between Vitamin D Levels, Puberty Timing, and Age at Menarche. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1243. [PMID: 37508740 PMCID: PMC10378582 DOI: 10.3390/children10071243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/15/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
Pubertal development represents the process of physical maturation where an adolescent reaches sexual maturity and attains reproductive function. The effects of vitamin D are mainly mediated by the vitamin D receptor (VDR), which is expressed in almost all body cells, including the ovary and human pituitary gland and animal hypothalamus. Thus, vitamin D has gained great interest as pathogenic factor of pubertal disorders and fertility. This narrative review aimed to provide a broad overview of the available literature regarding the association between vitamin D levels, puberty timing, and age at menarche. A review of the data on the involvement of micronutrient deficiency, as a modifiable cause of pubertal disorders, is important for the prediction and prevention of deficiencies as well as for fertility protection and should be considered a public health priority. Reported data support that vitamin D is a regulator of neuroendocrine and ovarian physiology and, more in detail, a deficiency of vitamin D is involved in altered pubertal timing. Considering the long-term consequences of early pubertal development and early menarche, the detection of modifiable causes is crucial in preventive strategies. Future studies in humans and with an increased scale are needed to elucidate the vitamin D role in sexual maturation and puberty development.
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Affiliation(s)
- Valeria Calcaterra
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
- Pediatric Department, Buzzi Children's Hospital, 20154 Milano, Italy
| | | | | | - Roberta Grazi
- Pediatric Department, Buzzi Children's Hospital, 20154 Milano, Italy
| | - Alice Bianchi
- Pediatric Department, Buzzi Children's Hospital, 20154 Milano, Italy
| | - Hellas Cena
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, Clinical Scientific Institutes Maugeri IRCCS, 27100 Pavia, Italy
| | - Gianvincenzo Zuccotti
- Pediatric Department, Buzzi Children's Hospital, 20154 Milano, Italy
- Department of Biomedical and Clinical Science, University of Milano, 20157 Milano, Italy
| | - Valentina Fabiano
- Pediatric Department, Buzzi Children's Hospital, 20154 Milano, Italy
- Department of Biomedical and Clinical Science, University of Milano, 20157 Milano, Italy
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Zhao Y, Gong JX, Ji YT, Zhao XY, He L, Cai SZ, Yan XM. Cross-sectional study of characteristics of body composition of 24,845 children and adolescents aged 3-17 years in Suzhou. BMC Pediatr 2023; 23:358. [PMID: 37442965 PMCID: PMC10339479 DOI: 10.1186/s12887-023-04134-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 06/16/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND We aimed to analyze the characteristics of the body composition of children and adolescents aged 3-17 in Suzhou, China. METHODS A cross-sectional study between January 2020 and June 2022 using bioelectrical impedance was conducted to determine the fat mass (FM), fat-free mass (FFM), skeletal muscle mass, and protein and mineral contents of 24,845 children aged 3-17 who attended the Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, China. Measurement data was presented in tables as mean ± SD, and groups were compared using the independent samples t-test. RESULTS FM and fat-free mass increased with age in both boys and girls. The fat-free mass of girls aged 14-15 decreased after reaching a peak, and that of boys in the same age group was higher than that of the girls (p < 0.05). There were no significant differences in FM between boys and girls younger than 9- and 10-years old. The percentage body fat (PBF) and FM index of girls increased rapidly between 11 and 15 years of age (p < 0.05), and those of boys aged 11-14 were significantly lower (p < 0.05), suggesting that the increase in body mass index (BMI) was mainly contributed by muscle mass (MM) in boys. CONCLUSIONS The body composition of children and adolescents varies according to their age and sex. A misdiagnosis of obesity made on the basis of BMI alone can be avoided if BMI is used in combination with FM index, percentage body fat, and other indexes.
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Affiliation(s)
- Yan Zhao
- Department of Pediatrics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215003, China
| | - Jin-Xin Gong
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Yi-Ting Ji
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Xiao-Yun Zhao
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Lu He
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Shi-Zhong Cai
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China.
| | - Xiang-Ming Yan
- Department of Urology, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China.
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28
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Nair-Collins M, Joffe AR. Frequent Preservation of Neurologic Function in Brain Death and Brainstem Death Entails False-Positive Misdiagnosis and Cerebral Perfusion. AJOB Neurosci 2023; 14:255-268. [PMID: 34586014 DOI: 10.1080/21507740.2021.1973148] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Some patients who have been diagnosed as "dead by neurologic criteria" continue to exhibit certain brain functions, most commonly, neuroendocrine functions. This preservation of neurologic function after the diagnosis of "brain death" or "brainstem death" is an ongoing source of controversy and concern in the medical, bioethics, and legal literatures. Most obviously, if some brain function persists, then it is not the case that all functions of the entire brain have ceased and hence, declaring such a patient to be "dead" would be a false positive, in any nation with so-called "whole brain death" laws. Furthermore, and perhaps more concerning, the preservation of any brain function necessarily entails the preservation of some amount of brain perfusion, thereby raising the concern as to whether additional areas of neural tissue may remain viable, including areas in the brainstem. These and other considerations cast significant doubt on the reliability of diagnosing either "brain death" or "brainstem death."
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Affiliation(s)
| | - Ari R Joffe
- University of Alberta and Stollery Children's Hospital
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29
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González-Domínguez Á, Domínguez-Riscart J, Millán-Martínez M, Mateos-Bernal RM, Lechuga-Sancho AM, González-Domínguez R. Trace elements as potential modulators of puberty-induced amelioration of oxidative stress and inflammation in childhood obesity. Biofactors 2023; 49:820-830. [PMID: 36929162 DOI: 10.1002/biof.1946] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 02/23/2023] [Indexed: 03/18/2023]
Abstract
Although puberty is known to influence obesity progression, the molecular mechanisms underlying the role of sexual maturation in obesity-related complications remains largely unexplored. Here, we delve into the impact of puberty on the most relevant pathogenic hallmarks of obesity, namely oxidative stress and inflammation, and their association with trace element blood status. To this end, we studied a well-characterized observational cohort comprising prepubertal (N = 46) and pubertal (N = 48) children with obesity. From all participants, plasma and erythrocyte samples were collected and subjected to metallomics analysis and determination of classical biomarkers of oxidative stress and inflammation. Besides the expected raise of sexual hormones, pubertal children displayed better inflammatory and oxidative control, as reflected by lower levels of C-reactive protein and oxidative damage markers, as well as improved antioxidant defense. This was in turn accompanied by a healthier multielemental profile, with increased levels of essential elements involved in the antioxidant system and metabolic control (metalloproteins containing zinc, molybdenum, selenium, and manganese) and decreased content of potentially deleterious species (total copper, labile free iron). Therefore, our findings suggest that children with obesity have an exacerbated inflammatory and oxidative damage at early ages, which could be ameliorated during pubertal development by the action of trace element-mediated buffering mechanisms.
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Affiliation(s)
- Álvaro González-Domínguez
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
| | - Jesús Domínguez-Riscart
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
- Unidad de Endocrinología Pediátrica y Diabetes, Servicio de Pediatría, Hospital Universitario Puerta del Mar, Cádiz, Spain
| | - María Millán-Martínez
- Associate Unit CSIC-University of Huelva "Atmospheric Pollution", Center for Research in Sustainable Chemistry - CIQSO, University of Huelva, Huelva, Spain
- Department of Chemistry, Faculty of Experimental Sciences, University of Huelva, Huelva, Spain
| | - Rosa María Mateos-Bernal
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
- Área de Bioquímica y Biología Molecular, Departamento de Biomedicina, Biotecnología y Salud Pública, Universidad de Cádiz, Cádiz, Spain
| | - Alfonso María Lechuga-Sancho
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
- Unidad de Endocrinología Pediátrica y Diabetes, Servicio de Pediatría, Hospital Universitario Puerta del Mar, Cádiz, Spain
- Departamento Materno Infantil y Radiología, Facultad de Medicina, Universidad de Cádiz, Cádiz, Spain
| | - Raúl González-Domínguez
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
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30
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Uğurlu AK, Bideci A, Demirel AM, Kaplanoğlu GT, Dayanır D, Gülbahar Ö, Bulut TSD, Döğer E, Çamurdan MO. Is blue light exposure a cause of precocious puberty in male rats? Front Endocrinol (Lausanne) 2023; 14:1190445. [PMID: 37409230 PMCID: PMC10319012 DOI: 10.3389/fendo.2023.1190445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/24/2023] [Indexed: 07/07/2023] Open
Abstract
Purpose Our study aimed to examine the effects of blue light exposure on prepubertal male rats' puberty and testis tissue. Methods Eighteen 21-day-old male Sprague Dawley rats were divided into three groups consisting of six rats in each group: Control Group (CG), Blue Light-6 hours (BL-6), and Blue Light-12 hours (BL-12). CG rats were maintained with 12/12-hour light-dark cycles. The rats of BL-6 and BL-12 were exposed to blue light (450-470nm/irradiance level 0.03uW/cm2) for 6 hours and 12 hours, respectively. Rats were exposed to blue light until the first signs of puberty. The ELISA method was used to analyze the serum levels of FSH, LH, testosterone, DHEA-S, leptin, ghrelin, melatonin, glutathione, glutathione peroxidase, and malondialdehyde. Testes were dissected for histomorphological examination. Results The medians of the pubertal entry days of the CG, BL-6, and BL-12 were 38th, 30th, and 28th days, respectively. (p:0.001) The FSH, LH, and testosterone concentrations of all groups were similar. The FSH concentration increased as the LH concentration increased (r: 0.82 p: 0.001). The serum LH concentration increased as serum testosterone, and DHEAS decreased, respectively (r: -0.561, p: 0.01) (r:-0.55 p:0.01). Testicular lengths and weights of the BL groups were smaller compared to CG (p: 0.03),(p: 0.04). GPx was higher for BL-6 and BL-12 than the CG (p:0.021, p:0.024). Testis tissue was compatible with the pubertal period in all groups. As the blue light exposure time increased, spermatogenesis was suppressed, and capillary dilatation and edema in the testis tissue increased. Conclusion Our study is the first to show the effects of blue light exposure on male rats' puberty process. And we showed that exposure to blue light and the duration of exposure lead to precocious puberty in male rats. The blue light exposure suppressed spermatogenesis, marked vasodilatation in the interstitial area of the testis, and disrupted the integrity of the basement membrane. These findings intensified with increasing exposure time.
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Affiliation(s)
| | - Aysun Bideci
- Department of Pediatric Endocrinology, Faculty of Medicine, Gazi University, Ankara, Türkiye
| | - Ayşe Mürşide Demirel
- Department of Basic Pharmaceutical Sciences Faculty of Pharmacy, Laboratory Animals Breeding and Experimental Research Center, Faculty of Pharmacy, Gazi University, Ankara, Türkiye
| | - Gülnur Take Kaplanoğlu
- Department of Histology and Embryology, Faculty of Medicine, Gazi University, Ankara, Türkiye
| | - Duygu Dayanır
- Department of Histology and Embryology, Faculty of Medicine, Gazi University, Ankara, Türkiye
| | - Özlem Gülbahar
- Department of Medical Biochemistry, Faculty of Medicine, Gazi University, Ankara, Türkiye
| | | | - Esra Döğer
- Department of Pediatric Endocrinology, Faculty of Medicine, Gazi University, Ankara, Türkiye
| | - Mahmut Orhun Çamurdan
- Department of Pediatric Endocrinology, Faculty of Medicine, Gazi University, Ankara, Türkiye
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31
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Micangeli G, Profeta G, Colloridi F, Pirro F, Tarani F, Ferraguti G, Spaziani M, Isidori AM, Menghi M, Fiore M, Tarani L. The role of the pediatrician in the management of the child and adolescent with gender dysphoria. Ital J Pediatr 2023; 49:71. [PMID: 37316904 DOI: 10.1186/s13052-023-01466-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 05/01/2023] [Indexed: 06/16/2023] Open
Abstract
Gender dysphoria is a clinical condition characterized by significant distress due to the discordance between biological sex and gender identity. Currently, gender dysphoria is also found more frequently in children and adolescents, thanks to greater social sensibleness and new therapeutic possibilities. In fact, it is estimated that the prevalence of gender dysphoria in pediatric age is between 0.5% and 2% based on the statistics of the various countries. Therefore, the pediatrician cannot fail to update himself on these issues and above all should be the reference figure in the management of these patients. Even if the patient must be directed to a referral center and be followed up by a multidisciplinary team, the treating pediatrician will care to coordinate the clinical and therapeutic framework. The aim of the present report is therefore to integrate literature data with our clinical experience to propose a new clinical approach in which the pediatrician should be the reference in the care of these patients, directing them towards the best therapeutic approach and staying in contact with the specialists of the referral center.
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Affiliation(s)
- Ginevra Micangeli
- Department of Pediatrics, "Sapienza" University of Rome, Rome, Italy
| | - Giovanni Profeta
- Department of Pediatrics, "Sapienza" University of Rome, Rome, Italy
| | | | - Federica Pirro
- Department of Pediatrics, "Sapienza" University of Rome, Rome, Italy
| | - Francesca Tarani
- Department of Pediatrics, "Sapienza" University of Rome, Rome, Italy
| | - Giampiero Ferraguti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Matteo Spaziani
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - Andrea M Isidori
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - Michela Menghi
- Department of Pediatrics, "Sapienza" University of Rome, Rome, Italy
| | - Marco Fiore
- Institute of Biochemistry and Cell Biology, IBBC-CNR, Rome, Italy.
| | - Luigi Tarani
- Department of Pediatrics, "Sapienza" University of Rome, Rome, Italy.
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Uhing A, Ahmed A, Salamat S, Chen M. A Rare Case of Precocious Puberty Secondary to an LH-secreting Pituitary Adenoma. JCEM CASE REPORTS 2023; 1:luad055. [PMID: 37908585 PMCID: PMC10580444 DOI: 10.1210/jcemcr/luad055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Indexed: 11/02/2023]
Abstract
An 8-year, 7-month-old male presented with puberty symptoms, including a 1.5-year history of facial hair with 9 months of phallic growth, body odor, and acne. Physical examination revealed phallic enlargement but only 4 mL testes bilaterally. Laboratory evaluation revealed markedly elevated LH and testosterone, but a prepubertal FSH level and minimally elevated adrenal androgens. A magnetic resonance imaging scan of the head revealed an anterior pituitary adenoma, and after the patient failed to respond to leuprolide, he was initiated on spironolactone and anastrozole to minimize pubertal progression before transsphenoidal adenomectomy. Postoperatively, the patient had rapid reduction of LH and testosterone, with subsequent cessation of pubertal progression, confirming the diagnosis of an LH-secreting pituitary adenoma despite negative immunoreactivity for LH and FSH. Functioning gonadotroph adenomas are rare and have been documented only in small case series and case reports. When active, these most commonly secrete FSH or co-secrete FSH and LH, and only very rarely result in precocious puberty. Here, we describe a rare case of an isolated LH-secreting functioning gonadotroph adenoma resulting in precocious puberty. This case reinforces the need to critically analyze departures from the typical pubertal sequence and to expand one's differential to include etiologies that can cause unbalanced secretion of gonadotropins.
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Affiliation(s)
- Anna Uhing
- School of Medicine and Public Health, Department of Pediatrics, University of Wisconsin, Madison, WI 53792, USA
| | - Azam Ahmed
- School of Medicine and Public Health, Department of Neurological Surgery, University of Wisconsin, Madison, WI 53792, USA
| | - Shahriar Salamat
- School of Medicine and Public Health, Department of Pathology, University of Wisconsin, Madison, WI 53792, USA
| | - Melinda Chen
- School of Medicine and Public Health, Department of Pediatrics, University of Wisconsin, Madison, WI 53792, USA
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Dirajlal-Fargo S, Strah M, Ailstock K, Sattar A, Karungi C, Nazzinda R, Kityo C, Musiime V, Funderburg N, McComsey GA. Persistent immune activation and altered gut integrity over time in a longitudinal study of Ugandan youth with perinatally acquired HIV. Front Immunol 2023; 14:1165964. [PMID: 37056779 PMCID: PMC10086119 DOI: 10.3389/fimmu.2023.1165964] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Introduction Perinatally acquired HIV infection (PHIV) occurs during a critical window of immune development. We investigated changes in systemic inflammation and immune activation in adolescents with PHIV and those without HIV (HIV-) in Uganda. Methods A prospective observational cohort study was performed in 2017-2021 in Uganda. All participants were between 10-18 years of age and without active co-infections. PHIVs were on ART with HIV-1 RNA level ≤400 copies/mL. We measured plasma and cellular markers of monocyte activation, T-cell activation (expression of CD38 and HLA-DR on CD4+ and CD8+), oxidized LDL, markers of gut integrity and fungal translocation. Groups were compared using Wilcoxon rank sum tests. Changes from baseline were examined with 97.5% confidence intervals on relative fold change. P values were adjusted for false discovery rate. Results We enrolled 101 PHIV and 96 HIV-; among these, 89 PHIV and 79 HIV- also had measurements at 96 weeks. At baseline, median (Q1, Q3) age was 13 yrs (11,15), and 52% were females. In PHIV, median CD4+ cell counts were 988 cells/µL (638, 1308), ART duration was 10 yrs (8, 11), and 85% had viral load <50 copies/mL throughout the study, 53% of participants had a regimen switch between visits, 85% of whom switched to 3TC, TDF and DTG. Over 96 weeks, while hsCRP decreased by 40% in PHIV (p=0.12), I-FABP and BDG both increased by 19 and 38% respectively (p=0.08 and ≤0.01) and did not change in HIV- (p≥0.33). At baseline, PHIVs had higher monocyte activation (sCD14) (p=0.01) and elevated frequencies of non-classical monocytes (p<0.01) compared to HIV- which remained stable over time in PHIV but increased by 34% and 80% respectively in HIV-. At both time points, PHIVs had higher T cell activation (p ≤ 0.03: CD4+/CD8+ T cells expressing HLA-DR and CD38). Only in PHIV, at both timepoints, oxidized LDL was inversely associated with activated T cells(p<0.01). Switching to dolutegravir at week 96 was significantly associated an elevated level of sCD163 (β=0.4, 95% CI=0.14,0.57, p<0.01), without changes in other markers. Conclusion Ugandan PHIV with viral suppression have some improvement in markers of inflammation over time, however T-cell activation remains elevated. Gut integrity and translocation worsened only in PHIV over time. A deeper understanding of the mechanisms causing immune activation in ART treated African PHIV is crucial.
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Affiliation(s)
- Sahera Dirajlal-Fargo
- Division of Pediatrics, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
- Division of Infectious Diseases, Rainbow Babies and Children’s Hospital, Cleveland, OH, United States
- School of Medicine and Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Monika Strah
- School of Medicine and Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Kate Ailstock
- School of Health and Rehabilitation Sciences, Ohio State University School of Health and Rehabilitation Sciences, Columbus, OH, United States
| | - Abdus Sattar
- School of Medicine and Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, United States
| | | | | | - Cissy Kityo
- Joint Clinical Research Centre, Kampala, Uganda
| | - Victor Musiime
- Joint Clinical Research Centre, Kampala, Uganda
- Makerere University, Kampala, Uganda
| | - Nicholas Funderburg
- School of Health and Rehabilitation Sciences, Ohio State University School of Health and Rehabilitation Sciences, Columbus, OH, United States
| | - Grace A. McComsey
- Division of Pediatrics, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
- Division of Infectious Diseases, Rainbow Babies and Children’s Hospital, Cleveland, OH, United States
- School of Medicine and Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, United States
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Sliz E, Tyrmi JS, Rahmioglu N, Zondervan KT, Becker CM, Uimari O, Kettunen J. Evidence of a causal effect of genetic tendency to gain muscle mass on uterine leiomyomata. Nat Commun 2023; 14:542. [PMID: 36726022 PMCID: PMC9892568 DOI: 10.1038/s41467-023-35974-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/10/2023] [Indexed: 02/03/2023] Open
Abstract
Uterine leiomyomata (UL) are the most common tumours of the female genital tract and the primary cause of surgical removal of the uterus. Genetic factors contribute to UL susceptibility. To add understanding to the heritable genetic risk factors, we conduct a genome-wide association study (GWAS) of UL in up to 426,558 European women from FinnGen and a previous UL meta-GWAS. In addition to the 50 known UL loci, we identify 22 loci that have not been associated with UL in prior studies. UL-associated loci harbour genes enriched for development, growth, and cellular senescence. Of particular interest are the smooth muscle cell differentiation and proliferation-regulating genes functioning on the myocardin-cyclin dependent kinase inhibitor 1 A pathway. Our results further suggest that genetic predisposition to increased fat-free mass may be causally related to higher UL risk, underscoring the involvement of altered muscle tissue biology in UL pathophysiology. Overall, our findings add to the understanding of the genetic pathways underlying UL, which may aid in developing novel therapeutics.
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Affiliation(s)
- Eeva Sliz
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.
- Biocenter Oulu, Oulu, Finland.
| | - Jaakko S Tyrmi
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland
- Biocenter Oulu, Oulu, Finland
| | - Nilufer Rahmioglu
- Oxford Endometriosis CaRe Centre, Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Krina T Zondervan
- Oxford Endometriosis CaRe Centre, Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Christian M Becker
- Oxford Endometriosis CaRe Centre, Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Outi Uimari
- Department of Obstetrics and Gynecology, Oulu University Hospital, Oulu, Finland
- PEDEGO Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland
- Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Johannes Kettunen
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland
- Biocenter Oulu, Oulu, Finland
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35
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Peeters N, Hanssen B, De Beukelaer N, Vandekerckhove I, Walhain F, Huyghe E, Dewit T, Feys H, Van Campenhout A, Van den Broeck C, Calders P, Desloovere K. A comprehensive normative reference database of muscle morphology in typically developing children aged 3-18 years-a cross-sectional ultrasound study. J Anat 2023; 242:754-770. [PMID: 36650912 PMCID: PMC10093158 DOI: 10.1111/joa.13817] [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: 07/22/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 01/19/2023] Open
Abstract
During childhood, muscle growth is stimulated by a gradual increase in bone length and body mass, as well as by other factors, such as physical activity, nutrition, metabolic, hormonal, and genetic factors. Muscle characteristics, such as muscle volume, anatomical cross-sectional area, and muscle belly length, need to continuously adapt to meet the daily functional demands. Pediatric neurological and neuromuscular disorders, like cerebral palsy and Duchenne muscular dystrophy, are characterized by impaired muscle growth, which requires treatment and close follow-up. Nowadays ultrasonography is a commonly used technique to evaluate muscle morphology in both pediatric pathologies and typically developing children, as it is a quick, easy applicable, and painless method. However, large normative datasets including different muscles and a large age range are lacking, making it challenging to monitor muscle over time and estimate the level of pathology. Moreover, in order to compare individuals with different body sizes as a result of age differences or pathology, muscle morphology is often normalized to body size. Yet, the usefulness and practicality of different normalization techniques are still unknown, and clear recommendations for normalization are lacking. In this cross-sectional cohort study, muscle morphology of four lower limb muscles (medial gastrocnemius, tibialis anterior, the distal compartment of the semitendinosus, rectus femoris) was assessed by 3D-freehand ultrasound in 118 typically developing children (mean age 10.35 ± 4.49 years) between 3 and 18 years of age. The development of muscle morphology was studied over the full age range, as well as separately for the pre-pubertal (3-10 years) and pubertal (11-18 years) cohorts. The assumptions of a simple linear regression were checked. If these assumptions were fulfilled, the cross-sectional growth curves were described by a simple linear regression equation. Additional ANCOVA analyses were performed to evaluate muscle- or gender-specific differences in muscle development. Furthermore, different scaling methods, to normalize muscle morphology parameters, were explored. The most appropriate scaling method was selected based on the smallest slope of the morphology parameter with respect to age, with a non-significant correlation coefficient. Additionally, correlation coefficients were compared by a Steiger's Z-test to identify the most efficient scaling technique. The current results revealed that it is valid to describe muscle volume (with exception of the rectus femoris muscle) and muscle belly length alterations over age by a simple linear regression equation till the age of 11 years. Normalizing muscle morphology data by allometric scaling was found to be most useful for comparing muscle volumes of different pediatric populations. For muscle lengths, normalization can be achieved by either allometric and ratio scaling. This study provides a unique normative database of four lower limb muscles in typically developing children between the age of 3 and 18 years. These data can be used as a reference database for pediatric populations and may also serve as a reference frame to better understand both physiological and pathological muscle development.
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Affiliation(s)
- Nicky Peeters
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Rehabilitation Sciences, University of Ghent, Ghent, Belgium
| | - Britta Hanssen
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Rehabilitation Sciences, University of Ghent, Ghent, Belgium
| | | | | | - Fenna Walhain
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Anatomy, Anton de Kom University of Suriname, Paramaribo, Suriname
| | - Ester Huyghe
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Tijl Dewit
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, Belgium
| | - Hilde Feys
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Anja Van Campenhout
- Department of Pediatric Orthopedics, Department of Orthopedics, University Hospitals Leuven, Leuven, Belgium.,Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | | | - Patrick Calders
- Department of Rehabilitation Sciences, University of Ghent, Ghent, Belgium
| | - Kaat Desloovere
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, Belgium
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de Almeida-Neto PF, Neto RB, Medeiros I, de Oliveira FCS, de Oliveira Filho AG, de Matos DG, Dantas PMS, de Araújo Tinôco Cabral BG. Relative age effect in elite Brazilian athletes in different combat sports: an observational study. SPORT SCIENCES FOR HEALTH 2023; 19:113-121. [PMID: 36249347 PMCID: PMC9547565 DOI: 10.1007/s11332-022-01007-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022]
Abstract
Background The relative age effect (RAE) suggests that, due to maturity, young athletes born in the first quartiles of the year may have advantages over those born in the last quartiles of the year. Thus, it is important to evaluate the RAE in different sports and to consider the particularities of the subdivisions of the sports categories. Objective To analyze the RAE in the top 20 of the Brazilian rankings in different combat sports. Methods Observational study that analyzed the national databases for the year 2019 (from categories U-11 to U-18) made publicly available by the Brazilian confederations of karate, taekwondo and fencing. We obtained data on date of birth, age category and body weight of all modalities, type of fencing competition weapon (Epee, Foie and Saber) and type of karate modality (kumite and kata) from the top 20 places in each ranking. The final sample consisted of 1,486 athletes (Age: 14.2 ± 2.3. Male-53.2%. Female-46.8%). To identify the RAE, we performed a contingency analysis and compared the results between the sexes within the same sport. Results There was RAE in the U-11, U-12, U-15 and U-17 fencing categories (p < 0.05), being higher in the female categories (p < 0.05). The RAE was higher for males in the Epee test, and similar between the sexes for the Saber and Foie tests. In karate, RAE occurred in categories U-14 and U-16 (p < 0.05), being higher in males (p < 0.05). The RAE was similar between the sexes in the kumite modality (p < 0.05). There was no RAE for the kata modality in karate (p > 0.05) and for the Taekwondo categories (p > 0.05). Conclusion The results showed the existence of a relative age effect in elite athletes ranked (top 20 places in each ranking) only for the sport of fencing and karate kumite. Graphical abstract
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- grid.411233.60000 0000 9687 399XHealth Sciences Center, CCS-UFRN, Federal University of Rio Grande do Norte, Natal, RN 59012-570 Brazil ,grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Rui Barboza Neto
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Iago Medeiros
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Fernanda Cristina Silva de Oliveira
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Abel Gomes de Oliveira Filho
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Dihogo Gama de Matos
- grid.21613.370000 0004 1936 9609Cardiovascular and Physiology of Exercise Laboratory, University of Manitoba, Winnipeg, Canada
| | - Paulo Moreira Silva Dantas
- grid.411233.60000 0000 9687 399XHealth Sciences Center, CCS-UFRN, Federal University of Rio Grande do Norte, Natal, RN 59012-570 Brazil ,grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Breno Guilherme de Araújo Tinôco Cabral
- grid.411233.60000 0000 9687 399XHealth Sciences Center, CCS-UFRN, Federal University of Rio Grande do Norte, Natal, RN 59012-570 Brazil ,grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
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Black SR, Scalco MD, Mackin D, Shirtcliff EA, Klein DN. Longitudinal patterns of neuroendocrine coupling from middle childhood to early adolescence. Dev Psychobiol 2022; 64:e22340. [PMID: 36426796 PMCID: PMC9708093 DOI: 10.1002/dev.22340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 08/09/2022] [Accepted: 09/21/2022] [Indexed: 11/06/2022]
Abstract
Recent scholarship has highlighted the importance of understanding relations between hormones, rather than studying hormones in isolation. Considering neuroendocrine coupling, or the coordination of hypothalamic-pituitary-adrenal axis and hypothalamic-pituitary-gonadal axis hormones over time, is one way to investigate how systems governing stress responsiveness and pubertal development covary during critical periods. To date, however, most work has considered hormone coupling cross-sectionally. The current study investigated neuroendocrine coupling in a longitudinal sample from the Northeastern United States. Youth (N = 437, 53% male, 90% White) provided saliva samples for analysis of diurnal hormone activity at ages 9 (three samples per day across 3 days) and 12 (one sample per day on the same weekday for 4 weeks). At both timepoints, samples collected 30-min after waking were assayed for cortisol, dehydroepiandrosterone (DHEA), and testosterone. Multilevel growth modeling was used to determine how levels of morning cortisol changed in tandem with DHEA and testosterone. Morning cortisol-DHEA coupling varied by child sex, as males' cortisol-DHEA diminished over time, especially among pubertally advanced males. Females, in contrast, demonstrated strengthening cortisol-DHEA coupling over time, especially more pubertally advanced females. Morning cortisol-testosterone coupling did not vary by sex or pubertal status, demonstrating strengthening associations between ages 9 and 12. The current findings contribute to the literature on hormone coupling across development and expand this work into an earlier developmental phase than previously investigated.
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Affiliation(s)
- Sarah R. Black
- Department of Psychology, University of New Orleans, New Orleans, LA
| | - Matthew D. Scalco
- Department of Psychology, University of New Orleans, New Orleans, LA
| | - Daniel Mackin
- Department of Psychology, Stony Brook University, Stony Brook, NY
| | | | - Daniel N. Klein
- Department of Psychology, Stony Brook University, Stony Brook, NY
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Wood EK, Sullivan EL. The Influence of Diet on Metabolism and Health Across the Lifespan in Nonhuman Primates. CURRENT OPINION IN ENDOCRINE AND METABOLIC RESEARCH 2022; 24. [PMID: 35425871 DOI: 10.1016/j.coemr.2022.100336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The macro and micronutrient composition and the overall quantity of the diet are important predictors of physical and psychological health and, as a consequence, behavior. Translational preclinical models are critical to identifying the mechanisms underlying these relationships. Nonhuman primate models are particularly instrumental to this line of research as they exhibit considerable genetic, social, and physiological similarities, as well as similarities in their developmental trajectories to humans. This review aims to discuss recent contributions to the field of diet and metabolism and health using nonhuman primate models. The influence of diet composition on health and physiology across the lifespan will be the primary focus, including recent work examining the impact of maternal diet programming of offspring physiologic and behavioral developmental outcomes.
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Affiliation(s)
- Elizabeth K Wood
- Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239
| | - Elinor L Sullivan
- Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239
- Oregon National Primate Research Center, 505 NW 185 Avenue, Beaverton, OR 97006
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Muscle power differences between upper and lower limbs in adolescent athletes: an approach of expert researchers. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-022-00928-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Bassi G, Mishra S. Prohibitin-1 plays a regulatory role in Leydig cell steroidogenesis. iScience 2022; 25:104165. [PMID: 35434552 PMCID: PMC9010647 DOI: 10.1016/j.isci.2022.104165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/20/2021] [Accepted: 03/24/2022] [Indexed: 10/31/2022] Open
Abstract
Mitochondria are essential for steroidogenesis. In steroidogenic cells, the initiation of steroidogenesis from cholesterol occurs on the matrix side of the inner mitochondrial membrane by the enzyme P450scc. This requires cholesterol import from the cytoplasm through the outer mitochondrial membrane, facilitated by the StAR protein. The subsequent steps leading to P450scc remain elusive. Here we report that the male transgenic mice that expressed a mutant form of a mitochondrial protein prohibitin-1 (PHB1Tyr114Phe) from the Fabp-4 gene promoter displayed smaller testes, higher testosterone, and lower gonadotropin levels compared with PHB1-expressing and wild-type mice. A subsequent analysis of the testis and Leydig cells from the mice revealed that PHB1 played a previously unknown regulatory role in Leydig cell steroidogenesis. This includes a role in coordinating cell signaling, cholesterol homeostasis, and mitochondrial biology pertaining to steroidogenesis. The implications of our finding are broad as the initial stages of steroidogenesis are indistinguishable across steroidogenic cells. Tyr114Phe-PHB-1 transgenic male mice reveal PHB-1’s role in testosterone production PHB-1 coordinates steroidogenic signaling and events in testosterone biosynthesis Tyr114 residue in PHB-1 plays a regulatory role in testosterone production
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Matsuo LH, Adami F, Pereira LJ, Silva DAS, Vasconcelos FDAG, Longo GZ, Vieira FGK, Hinnig PDF. Age at menarche and its association with overweight including obesity and socio‐economic conditions of Brazilian schoolgirls: A time‐trend analysis. NUTR BULL 2022; 47:70-81. [DOI: 10.1111/nbu.12544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Luísa Harumi Matsuo
- Postgraduate Program in Nutrition Federal University of Santa Catarina Florianópolis Brazil
| | - Fernando Adami
- Laboratory of Epidemiology and Data Analysis University Center Health ABC Santo André Brazil
| | | | | | | | - Giana Zarbato Longo
- Postgraduate Program in Nutrition Federal University of Santa Catarina Florianópolis Brazil
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Ucciferri CC, Dunn SE. Effect of puberty on the immune system: Relevance to multiple sclerosis. Front Pediatr 2022; 10:1059083. [PMID: 36533239 PMCID: PMC9755749 DOI: 10.3389/fped.2022.1059083] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/03/2022] [Indexed: 12/03/2022] Open
Abstract
Puberty is a dynamic period marked by changing levels of sex hormones, the development of secondary sexual characteristics and reproductive maturity. This period has profound effects on various organ systems, including the immune system. The critical changes that occur in the immune system during pubertal onset have been shown to have implications for autoimmune conditions, including Multiple Sclerosis (MS). MS is rare prior to puberty but can manifest in children after puberty. This disease also has a clear female preponderance that only arises following pubertal onset, highlighting a potential role for sex hormones in autoimmunity. Early onset of puberty has also been shown to be a risk factor for MS. The purpose of this review is to overview the evidence that puberty regulates MS susceptibility and disease activity. Given that there is a paucity of studies that directly evaluate the effects of puberty on the immune system, we also discuss how the immune system is different in children and mice of pre- vs. post-pubertal ages and describe how gonadal hormones may regulate these immune mechanisms. We present evidence that puberty enhances the expression of co-stimulatory molecules and cytokine production by type 2 dendritic cells (DC2s) and plasmacytoid dendritic cells (pDCs), increases T helper 1 (Th1), Th17, and T follicular helper immunity, and promotes immunoglobulin (Ig)G antibody production. Overall, this review highlights how the immune system undergoes a functional maturation during puberty, which has the potential to explain the higher prevalence of MS and other autoimmune diseases seen in adolescence.
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Affiliation(s)
- Carmen C Ucciferri
- Department of Immunology, The University of Toronto, Toronto, ON, Canada
| | - Shannon E Dunn
- Department of Immunology, The University of Toronto, Toronto, ON, Canada.,Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, Canada.,Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada
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Prosperi S, Chiarelli F. Early and precocious puberty during the COVID-19 pandemic. Front Endocrinol (Lausanne) 2022; 13:1107911. [PMID: 36699035 PMCID: PMC9868951 DOI: 10.3389/fendo.2022.1107911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
During the year 2020, the COVID-19 pandemic rapidly became a severe health emergency worldwide. In order to contrast the spread of the novel SARS-CoV-2, many countries implemented extraordinary restrictive measures, such as a strict lockdown and school closures. The pandemic had a great impact on children and adolescents' daily life, leading to a much more sedentary lifestyle, to larger use of electronic devices and to an increase in stress-related symptoms. These conspicuous changes acted as disruptors of children's normal development. Since the beginning of the pandemic, many studies reported an increase in the number of precocious puberty cases as well as a faster progression rate of puberty itself, if compared to the pre-pandemic years. In this review, our aim was to evaluate the incidence of new cases of early and precocious puberty during the COVID-19 pandemic, analyzing variations in the timing of puberty and in pubertal progression rate, and to investigate the role of environmental and lifestyle factors during the pandemic in modulating the physiopathology of pubertal development. While a direct effect of SARS-CoV-2 infection remains, at the moment, a remote hypothesis, both physical and psychological factors related to the pandemic seem to have a role in triggering GnRH pulsatile secretion leading to earlier pubertal onset. It is indeed important to stress the need to clarify the exact role of COVID-19 in early pubertal onset comparing data from all over the world; long-term comprehensive studies are also pivotal to explain whether this phenomenon will continue while we resume pre-pandemic habits.
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Huang S, Chen Z, Chen R, Zhang Z, Sun J, Chen H. Analysis of risk factors and construction of a prediction model for short stature in children. Front Pediatr 2022; 10:1006011. [PMID: 36561487 PMCID: PMC9763591 DOI: 10.3389/fped.2022.1006011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/31/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Short stature in children is an important global health issue. This study aimed to analyze the risk factors associated with short stature and to construct a clinical prediction model and risk classification system for short stature. METHODS This cross-sectional study included 12,504 children aged 6-14 years of age from 13 primary and secondary schools in Pingshan District, Shenzhen. A physical examination was performed to measure the height and weight of the children. Questionnaires were used to obtain information about children and their parents, including sex, age, family environment, social environment, maternal conditions during pregnancy, birth and feeding, and lifestyle. The age confounding variable was adjusted through a 1 : 1 propensity score matching (PSM) analysis and 1,076 children were selected for risk factor analysis. RESULTS The prevalence of short stature in children aged 6-14 years was 4.3% in the Pingshan District, Shenzhen. The multivariate logistic regression model showed that the influencing factors for short stature were father's height, mother's height, annual family income, father's level of education and parents' concern for their children's height in the future (P < 0.05). Based on the short stature multivariate logistic regression model, a short stature nomogram prediction model was constructed. The area under the ROC curve (AUC) was 0.748, indicating a good degree of discrimination of the nomogram. According to the calibration curve, the Hosmer-Lemesio test value was 0.917, and the model was considered to be accurate. Based on a risk classification system derived from the nomogram prediction model, the total score of the nomogram was 127.5, which is considered the cutoff point to divides all children into low-risk and high-risk groups. CONCLUSION This study analyzed the risk factors for short stature in children and constructed a nomogram prediction model and a risk classification system based on these risk factors, as well as providing short stature screening and assessment individually.
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Affiliation(s)
- Shaojun Huang
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiqi Chen
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Rongping Chen
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhen Zhang
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jia Sun
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Hong Chen
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Faienza MF, Urbano F, Moscogiuri LA, Chiarito M, De Santis S, Giordano P. Genetic, epigenetic and enviromental influencing factors on the regulation of precocious and delayed puberty. Front Endocrinol (Lausanne) 2022; 13:1019468. [PMID: 36619551 PMCID: PMC9813382 DOI: 10.3389/fendo.2022.1019468] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
The pubertal development onset is controlled by a network of genes that regulate the gonadotropin releasing hormone (GnRH) pulsatile release and the subsequent increase of the circulating levels of pituitary gonadotropins that activate the gonadal function. Although the transition from pre-pubertal condition to puberty occurs physiologically in a delimited age-range, the inception of pubertal development can be anticipated or delayed due to genetic and epigenetic changes or environmental conditions. Most of the genetic and epigenetic alterations concern genes which encode for kisspeptin, GnRH, LH, FSH and their receptor, which represent crucial factors of the hypothalamic-pituitary-gonadal (HPG) axis. Recent data indicate a central role of the epigenome in the regulation of genes in the hypothalamus and pituitary that could mediate the flexibility of pubertal timing. Identification of epigenetically regulated genes, such as Makorin ring finger 3 (MKRN3) and Delta-like 1 homologue (DLK1), respectively responsible for the repression and the activation of pubertal development, provides additional evidence of how epigenetic variations affect pubertal timing. This review aims to investigate genetic, epigenetic, and environmental factors responsible for the regulation of precocious and delayed puberty.
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Affiliation(s)
- Maria Felicia Faienza
- Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
- Giovanni XXIII Pediatric Hospital, Bari, Italy
- *Correspondence: Maria Felicia Faienza,
| | | | | | | | - Stefania De Santis
- Department of Pharmacy-Pharmaceutical Science, University of Bari “Aldo Moro”, Bari, Italy
| | - Paola Giordano
- Giovanni XXIII Pediatric Hospital, Bari, Italy
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
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Perkins DR, Talbot JS, Lord RN, Dawkins TG, Baggish AL, Zaidi A, Uzun O, Mackintosh KA, McNarry MA, Cooper SM, Lloyd RS, Oliver JL, Shave RE, Stembridge M. The influence of maturation on exercise-induced cardiac remodelling and haematological adaptation. J Physiol 2021; 600:583-601. [PMID: 34935156 DOI: 10.1113/jp282282] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/15/2021] [Indexed: 11/08/2022] Open
Abstract
KEY POINTS It has long been hypothesised that cardiovascular adaptation to endurance training is augmented following puberty. We investigated whether differences in cardiac and haematological variables exist, and to what extent, between endurance-trained vs. untrained, pre- and post-peak height velocity (PHV) children, and how these central factors relate to maximal oxygen consumption. Using echocardiography to quantify left ventricular (LV) morphology and carbon monoxide rebreathing to determine blood volume and haemoglobin mass, we identified that training-related differences in LV morphology are evident in pre-PHV children, with haematological differences also observed between pre-PHV girls. However, the breadth and magnitude of cardiovascular remodelling was more pronounced post-PHV. Cardiac and haematological measures provide significant predictive models for maximal oxygen consumption in children that are much stronger post-PHV, suggesting that other important determinants within the oxygen transport chain could account for the majority of variance in before puberty. ABSTRACT Cardiovascular and haematological adaptations to endurance training facilitate greater maximal oxygen consumption, and such adaptations maybe augmented following puberty. Therefore, we compared left ventricular (LV) morphology (echocardiography), blood volume, haemoglobin (Hb) mass (CO-rebreathe) and in endurance-trained and untrained boys (n = 42, age = 9.0-17.1 years, = 61.6±7.2 mL∙kg∙min, and n = 31, age = 8.0-17.7 years, O2max = 46.5±6.1 mL∙kg∙min, respectively) and girls (n = 45, age = 8.2-17.0 years, O2max = 51.4±5.7 mL∙kg∙min and n = 36, age = 8.0-17.6 years, O2max = 39.8±5.7 mL∙kg∙min, respectively). Pubertal stage was estimated via maturity offset, with participants classified as pre- or post-peak height velocity (PHV). Pre-PHV, only a larger LV end-diastolic volume/lean body mass (EDV/LBM) for trained boys (+0.28 mL∙kgLBM , P = 0.007) and a higher Hb mass/LBM for trained girls (+1.65 g∙kgLBM , P = 0.007) were evident compared to untrained controls. Post-PHV, LV mass/LBM (boys:+0.50 g∙kgLBM , P = 0.0003; girls:+0.35 g∙kgLBM , P = 0.003), EDV/LBM (boys:+0.35 mL∙kgLBM , P<0.0001; girls:+0.31 mL∙kgLBM, P = 0.0004), blood volume/LBM (boys:+12.47 mL∙kgLBM , P = 0.004; girls:+13.48 mL∙kgLBM , P = 0.0002.) and Hb mass/LBM (boys:+1.29 g∙kgLBM , P = 0.015; girls:+1.47 g∙kgLBM , P = 0.002) were all greater in trained vs. untrained groups. Pre-PHV, EDV (R2 adj = 0.224, P = 0.001) in boys, and Hb mass and interventricular septal thickness (R2 adj = 0.317, P = 0.002) in girls partially accounted for the variance in O2max . Post-PHV, stronger predictive models were evident via the inclusion of LV wall thickness and EDV in boys (R2 adj = 0.608, P<0.0001), and posterior wall thickness and Hb mass in girls (R2 adj = 0.490, P<0.0001). In conclusion, cardiovascular adaptation to exercise training is more pronounced post-PHV, with evidence for a greater role of central components for oxygen delivery. Abstract figure legend: Schematic diagram depicting cardiac structural and haematological differences between trained and untrained boys and girls, pre-peak height velocity (PHV) and post-PHV alongside cardiac and haematological variables contributions to the variance in O2max . Cardiac and haematological variables are greater in trained vs. untrained pre-pubertal children, and a greater number and magnitude of differences are observed at post-PHV. These variables provide significant predictive models for maximal oxygen consumption in children and are much stronger post-PHV, suggesting that other important determinants within the oxygen transport chain could account for the majority of variance in O2max before puberty. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Dean R Perkins
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Jack S Talbot
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Rachel N Lord
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Tony G Dawkins
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom.,Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, Canada
| | - Aaron L Baggish
- Cardiovascular Performance Program, Massachusetts General Hospital, Boston
| | - Abbas Zaidi
- University Hospital of Wales, Cardiff, United Kingdom
| | - Orhan Uzun
- University Hospital of Wales, Cardiff, United Kingdom
| | - Kelly A Mackintosh
- Applied Sports, Technology, Exercise and Medicine (A-STEM) Research Centre, Swansea University, Swansea, United Kingdom
| | - Melitta A McNarry
- Applied Sports, Technology, Exercise and Medicine (A-STEM) Research Centre, Swansea University, Swansea, United Kingdom
| | - Stephen-Mark Cooper
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Rhodri S Lloyd
- Youth Physical Development Centre, Cardiff Metropolitan University, Cardiff, United Kingdom.,Sports Performance Research Institute New Zealand, AUT University, Auckland, New Zealand.,Centre for Sport Science and Human Performance, Waikato Institute of Technology, Waikato, New Zealand
| | - Jon L Oliver
- Youth Physical Development Centre, Cardiff Metropolitan University, Cardiff, United Kingdom.,Sports Performance Research Institute New Zealand, AUT University, Auckland, New Zealand
| | - Rob E Shave
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, Canada
| | - Mike Stembridge
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
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Ziqin L, Qinwei S, Xiaobo C, Xiaohui L. The utility of serum inhibin B, anti-Müllerian hormone and insulin growth factor-1 in predicting a positive response to GnRH analogs for diagnosing central precocious puberty in girls. J Pediatr Endocrinol Metab 2021; 34:1257-1262. [PMID: 34291618 DOI: 10.1515/jpem-2021-0137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/30/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The use of inhibin B (INHB), anti-Müllerian hormone (AMH) and insulin-like growth factor-1 (IGF-1) in differentiating central precocious puberty (CPP) from non-CPP was evaluated. METHODS In total, 115 Chinese girls were recruited (CPP: 44, non-CPP: 71). The diagnostic performance of INHB, AMH and IGF-1 in differentiating CPP from non-CPP was analyzed using receiver operating characteristic (ROC) curves. RESULTS INHB levels were higher in the CPP group than in the non-CPP group (55.56 ± 22.42 vs. 32.97 ± 15.59 pg/mL; p<0.001). AMH levels were similar in the CPP and non-CPP groups (6.63 ± 3.74 vs. 5.70 ± 3.15 pg/mL; p=0.158), and IGF-1 levels were much higher in the CPP group than in the non-CPP group (290.75 ± 79.78 vs. 200.10 ± 54.01 pg/mL; p<0.001). The area under the ROC curve (AUC) was greatest for INHB (0.819, standard error (SE) 0.041), followed by IGF-1 (0.809, SE 0.047) and AMH (0.567, SE 0.057). Among the ROC curves including combinations of these parameters, the AUC for INHB + IGF-1 was 0.849 and that for INHB + AMH was 0.768. CONCLUSIONS Serum INHB and IGF-1 measurements could predict positive responses to gonadotropin-releasing hormone (GnRH) analog stimulation in girls with precocious puberty.
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Affiliation(s)
- Liu Ziqin
- Department of Endocrinology, Capital Institute of Pediatrics, Beijing, P. R. China
- Peking Union Medical College Graduate School, Beijing, P. R. China
| | - Song Qinwei
- Department of Clinical Laboratory, Capital Institute of Pediatrics, Beijing, P. R. China
| | - Chen Xiaobo
- Department of Endocrinology, Capital Institute of Pediatrics, Beijing, P. R. China
| | - Li Xiaohui
- Peking Union Medical College Graduate School, Beijing, P. R. China
- Department of Cardiology, Capital Institute of Pediatrics, Beijing, P. R. China
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48
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Wood CL, Page J, Foggin J, Guglieri M, Straub V, Cheetham TD. The impact of testosterone therapy on quality of life in adolescents with Duchenne muscular dystrophy. Neuromuscul Disord 2021; 31:1259-1265. [PMID: 34702655 PMCID: PMC8721209 DOI: 10.1016/j.nmd.2021.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/19/2021] [Accepted: 09/21/2021] [Indexed: 11/04/2022]
Abstract
Testosterone therapy for pubertal induction was associated with improvements in QoL. Physical changes during puberty played an important role. Low self-esteem was also a prevailing theme. Parent-reported QoL scores were lower than patient-reports, consistent with other literature. Data from this study will provide a useful foundation for future work.
Duchenne muscular dystrophy (DMD) is the most common muscular dystrophy in childhood. It is associated with progressive muscle function decline and premature death. Long-term oral glucocorticoid use slows muscle weakness but is associated with several side effects including delayed puberty. This study assessed the impact of a 2-year incremental intramuscular testosterone regimen on quality of life (QoL) in a cohort of 15 adolescents with DMD. The Pediatric Quality of Life Inventory (PedsQL) Neuromuscular module was used to assess QoL and was completed by parent-child dyads. Semi-structured interviews were carried out to understand patient views on testosterone therapy. QoL scores increased in 10 of the 15 participants during treatment, with a mean total PedsQL score of 74.6 pre-treatment v 80.2 post treatment (p = 0.04). This was supported by comments in the semi-structured interviews. Parent-reported PedsQL scores were lower than their child's post treatment (p = 0.007). Testosterone therapy for pubertal induction was associated with an improvement in QoL and the observed physical changes during puberty played an important role. Low self-esteem was also a prevailing theme. This data supports the inclusion of testosterone therapy for pubertal induction as a Standard of Care.
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Affiliation(s)
- C L Wood
- Translational and Clinical Research Institute, Newcastle University UK; Department of Paediatric Endocrinology, Newcastle upon Tyne Hospitals NHS Foundation Trust UK.
| | - J Page
- John Walton Muscular Dystrophy Research Centre, Newcastle University and Newcastle Hospitals NHS Foundation Trust UK
| | - J Foggin
- Department of Paediatric Endocrinology, Newcastle upon Tyne Hospitals NHS Foundation Trust UK
| | - M Guglieri
- Translational and Clinical Research Institute, Newcastle University UK; John Walton Muscular Dystrophy Research Centre, Newcastle University and Newcastle Hospitals NHS Foundation Trust UK
| | - V Straub
- Translational and Clinical Research Institute, Newcastle University UK; John Walton Muscular Dystrophy Research Centre, Newcastle University and Newcastle Hospitals NHS Foundation Trust UK
| | - T D Cheetham
- Translational and Clinical Research Institute, Newcastle University UK; Department of Paediatric Endocrinology, Newcastle upon Tyne Hospitals NHS Foundation Trust UK
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49
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Barbieri F, Inzaghi E, Caruso Nicoletti M, Cassio A, Grandone A, DE Sanctis L, Bizzarri C. Biological clock and heredity in pubertal timing: what is new? Minerva Pediatr (Torino) 2021; 73:537-548. [PMID: 34264049 DOI: 10.23736/s2724-5276.21.06511-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Puberty represents a milestone during a person's life and is characterized by several physical and psychological changes which end with the achievement of sexual maturation and of fertility. Puberty onset depends on a series of sophisticated, not completely understood, mechanisms certainly involving Gonadotropin-Releasing Hormone (GnRH) and its effects on pituitary gonadotropins. As recent evidence has demonstrated that pubertal timing deeply affects future adult health life, much efforts have been performed in order to clarify the exact actors involved in the onset and progression of puberty. Genetic factors are undoubtedly essential players in the regulation of pubertal development, accounting for approximately 50-80% of its variability. Mutations in genes such as KISS1, MKRN3 and DLK1 have been associated with central precocious puberty. Interestingly, a possible involvement of epigenetic mechanisms has been proposed as additional element able to affect pubertal phase. Environmental factors have recently attracted much attention. Indeed, an overall decrease in the age of puberty has been observed in the last decades. As genetic factors require long time to exert their effect, other players, such as environmental ones, may be involved. Special focus has been posed on nutritional status, endocrine-disrupting chemicals with non-conclusive results. Pubertal timing deeply affects future life, suggesting the need to clarify mechanisms driving pubertal onset and progression, in order to identify tailored therapeutic strategies and targets.
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Affiliation(s)
- Flavia Barbieri
- Pediatric Section, Department of translational Medical Sciences, Federico II University of Naples, Naples, Italy
| | - Elena Inzaghi
- Department of Pediatrics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Manuela Caruso Nicoletti
- Pediatric Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Alessandra Cassio
- Pediatric Unit, Department of Medical and Surgical Sciences, S.Orsola-Malpighi University Hospital, Bologna, Italy
| | - Anna Grandone
- Departement of Women's and Children's Health and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Napoli, Italy
| | - Luisa DE Sanctis
- Pediatric Endocrinology Unit, Department of Public Health and Pediatric Sciences, University of Turin, Turin, Italy
| | - Carla Bizzarri
- Unit of Endocrinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy -
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50
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Bastos VC, Vitório JG, Martins-Chaves RR, Leite-Lima F, Lebron YAR, Moreira VR, Duarte-Andrade FF, Pereira TDSF, Santos LVDS, Lange LC, de Macedo AN, Canuto GAB, Gomes CC, Gomez RS. Age-Related Metabolic Pathways Changes in Dental Follicles: A Pilot Study. FRONTIERS IN ORAL HEALTH 2021; 2:677731. [PMID: 35048024 PMCID: PMC8757705 DOI: 10.3389/froh.2021.677731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/12/2021] [Indexed: 01/10/2023] Open
Abstract
Aging is not a matter of choice; it is our fate. The “time-dependent functional decline that affects most living organisms” is coupled with several alterations in cellular processes, such as cell senescence, epigenetic alterations, genomic instability, stem cell exhaustion, among others. Age-related morphological changes in dental follicles have been investigated for decades, mainly motivated by the fact that cysts and tumors may arise in association with unerupted and/or impacted teeth. The more we understand the physiology of dental follicles, the more we are able to contextualize biological events that can be associated with the occurrence of odontogenic lesions, whose incidence increases with age. Thus, our objective was to assess age-related changes in metabolic pathways of dental follicles associated with unerupted/impacted mandibular third molars from young and adult individuals. For this purpose, a convenience sample of formalin-fixed paraffin-embedded (FFPE) dental follicles from young (<16 y.o., n = 13) and adult (>26 y.o., n = 7) individuals was selected. Samples were analyzed by high-performance liquid chromatography-mass spectrometry (HPLC-MS)-based untargeted metabolomics. Multivariate and univariate analyses were conducted, and the prediction of altered pathways was performed by mummichog and Gene Set Enrichment Analysis (GSEA) approaches. Dental follicles from young and older individuals showed differences in pathways related to C21-steroid hormone biosynthesis, bile acid biosynthesis, galactose metabolism, androgen and estrogen biosynthesis, starch and sucrose metabolism, and lipoate metabolism. We conclude that metabolic pathways differences related to aging were observed between dental follicles from young and adult individuals. Our findings support that similar to other human tissues, dental follicles associated with unerupted tooth show alterations at a metabolic level with aging, which can pave the way for further studies on oral pathology, oral biology, and physiology.
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Affiliation(s)
- Victor Coutinho Bastos
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Jéssica Gardone Vitório
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Roberta Rayra Martins-Chaves
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Flávia Leite-Lima
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Yuri Abner Rocha Lebron
- Department of Sanitary and Environmental Engineering, School of Engineering, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Victor Rezende Moreira
- Department of Sanitary and Environmental Engineering, School of Engineering, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Filipe Fideles Duarte-Andrade
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Lucilaine Valéria de Souza Santos
- Department of Sanitary and Environmental Engineering, School of Engineering, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Liséte Celina Lange
- Department of Sanitary and Environmental Engineering, School of Engineering, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Adriana Nori de Macedo
- Department of Chemistry, Exact Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Carolina Cavaliéri Gomes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- *Correspondence: Ricardo Santiago Gomez
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