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Frontiers in Endocrinology 2023Some studies have investigated the association between vitamin D levels and precocious puberty (PP) but with limited sample sizes and inconsistent conclusions across... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Some studies have investigated the association between vitamin D levels and precocious puberty (PP) but with limited sample sizes and inconsistent conclusions across studies.
METHODS
Until July 2022, a comprehensive electronic search of works of literature was conducted in MEDLINE, Web of Science, and CNKI (Chinese National Knowledge Infrastructure). A systematic review and meta-analysis of 15 case-control studies with 2145 cases and 2063 controls was conducted to explore the relationship between vitamin D and PP. Stratified analyses by year of publication, country, diagnosis category of PP, child's sex, and methods of 25(OH)D test were conducted.
RESULTS
There was a negative correlation between 25(OH)D concentrations and PP in all study populations (SMD = -1.046, 95%CI = -1.366, -0.726). The pooled SMD remained significant in Chinese studies (SMD = -1.113, 95%CI = -0.486, -0.741), studies published before or after 2018 (SMD = -0.9832 and -1.185, 95%CI = -2.044, -1.133 and -1.755, -0.726), studies with female children (SMD = -1.114, 95%CI = -1.446, -0.781), and studies using electrochemiluminescence to detect 25(OH)D (SMD = -0.999, 95%CI = -1.467, -0.531). Vitamin D deficiency also increased the risk of PP (OR = 1.531, 95%CI = 1.098, 2.134). Unfortunately, heterogeneity was high in all analyses, and there was some publication bias.
CONCLUSION
This systematic review and meta-analysis demonstrated an association between vitamin D and precocious puberty. We recommend more high-quality studies, especially prospective cohort studies with big sample sizes or some randomized controlled intervention trials, to validate the reliability of the results.
Topics: Child; Humans; Female; Vitamin D; Puberty, Precocious; Prospective Studies; Reproducibility of Results; Vitamins
PubMed: 38116317
DOI: 10.3389/fendo.2023.1298374 -
Dermatologic Surgery : Official... Jun 2024Striae are fine lines on the body that occur following rapid skin stretching (i.e., following pregnancy, puberty, weight change). The aim of this systematic review was...
BACKGROUND
Striae are fine lines on the body that occur following rapid skin stretching (i.e., following pregnancy, puberty, weight change). The aim of this systematic review was to assess the current literature on treatment outcomes associated with striae.
OBJECTIVE
(1) To assess the efficacy and safety of different treatment options reported for striae and (2) to determine the most efficient treatment options for each subtype of striae.
METHODS
A systematic search was performed on MEDLINE, Embase, and PubMed with no publication date or language restrictions. All articles with original data and treatment outcomes were included.
RESULTS
One hundred fifty-one studies on the treatment of striae met inclusion criteria (83% female, mean age at diagnosis = 30.2), and 4,806 treatment outcomes of striae were described. Energy-based devices were the most reported modality (56%; n = 2,699/4,806), followed by topicals (19%; n = 919/4,806) and combinations (12%; n = 567/4,806). The highest rates of complete response were injection-based devices for striae distensae (7%; n = 12/172), CO 2 lasers for striae alba (4%; n = 12/341), and platelet-rich plasma injections for striae rubra (31%; n = 4/13).
CONCLUSION
Treatment options for striae are varied, likely indicating a lack of effective treatments due to the diversity in striae subtypes. Improved outcomes in striae management may be achieved with additional research on factors that predict treatment response.
Topics: Female; Humans; Laser Therapy; Striae Distensae; Treatment Outcome; Male
PubMed: 38452322
DOI: 10.1097/DSS.0000000000004151 -
Children (Basel, Switzerland) Nov 2023Polycystic ovary syndrome (PCOS) is a common endocrine disorder that affects women of reproductive age and female adolescents. The diagnosis of PCOS is difficult during... (Review)
Review
BACKGROUND
Polycystic ovary syndrome (PCOS) is a common endocrine disorder that affects women of reproductive age and female adolescents. The diagnosis of PCOS is difficult during puberty due to overlapping of the criteria with normal variations of menstruation during this age period. There are insufficient data on the gut microbiome and PCOS and potential mechanisms linking the two. The present systematic review aimed to detect dysbiosis patterns in youth with PCOS, compared with healthy controls.
METHODS
One hundred seventy-eight studies were identified by a databases search and sixty-eight by a full-text assessment for eligibility; four were included in the systematic review and underwent quality control.
RESULTS
The results of the study were controversial in accordance to findings from the literature. A change in gut microbiome α diversity was found in PCOS adolescents, with no significant alterations in β diversity. Almost all studies found Firmicutes, Bacteroidetes, and Actinobacteria in abundance in both groups, with changes in family composition and fluctuations at the phylum level. A statistically significant association between these changes and clinical or biochemical features of the syndrome was described.
CONCLUSIONS
This systematic review confirmed gut microbiota dysbiosis in youth with PCOS. However, further data are needed to clarify these changes and to build a strategy to prevent the syndrome.
PubMed: 38136074
DOI: 10.3390/children10121872 -
European Journal of Endocrinology Jan 2024Hypogonadotropic hypogonadism is characterized by inadequate secretion of pituitary gonadotropins, leading to absent, partial, or arrested puberty. In males, classical... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Hypogonadotropic hypogonadism is characterized by inadequate secretion of pituitary gonadotropins, leading to absent, partial, or arrested puberty. In males, classical treatment with testosterone promotes virilization but not testicular growth or spermatogenesis. To quantify treatment practices and efficacy, we systematically reviewed all studies investigating gonadotropins for the achievement of pubertal outcomes in males with hypogonadotropic hypogonadism.
DESIGN
Systematic review and meta-analysis.
METHODS
A systematic review of Medline, Embase, Global Health, and PsycINFO databases in December 2022. Risk of Bias 2.0/Risk Of Bias In Non-randomized Studies of Interventions/National Heart, Lung, and Blood Institute tools for quality appraisal. Protocol registered on PROSPERO (CRD42022381713).
RESULTS
After screening 3925 abstracts, 103 studies were identified including 5328 patients from 21 countries. The average age of participants was <25 years in 45.6% (n = 47) of studies. Studies utilized human chorionic gonadotropin (hCG) (n = 93, 90.3% of studies), human menopausal gonadotropin (n = 42, 40.8%), follicle-stimulating hormone (FSH) (n = 37, 35.9%), and gonadotropin-releasing hormone (28.2% n = 29). The median reported duration of treatment/follow-up was 18 months (interquartile range 10.5-24 months). Gonadotropins induced significant increases in testicular volume, penile size, and testosterone in over 98% of analyses. Spermatogenesis rates were higher with hCG + FSH (86%, 95% confidence interval [CI] 82%-91%) as compared with hCG alone (40%, 95% CI 25%-56%). However, study heterogeneity and treatment variability were high.
CONCLUSIONS
This systematic review provides convincing evidence of the efficacy of gonadotropins for pubertal induction. However, there remains substantial heterogeneity in treatment choice, dose, duration, and outcomes assessed. Formal guidelines and randomized studies are needed.
Topics: Humans; Male; Chorionic Gonadotropin; Follicle Stimulating Hormone; Gonadotropin-Releasing Hormone; Gonadotropins; Hypogonadism; Klinefelter Syndrome; Spermatogenesis; Testis; Testosterone; Young Adult
PubMed: 38128110
DOI: 10.1093/ejendo/lvad166 -
The World Journal of Biological... 2024Adrenergic dysregulation has been proposed as a possible underlying mechanism in feeding and eating disorders (FED). This review aims to synthesise the current evidence... (Review)
Review
BACKGROUND
Adrenergic dysregulation has been proposed as a possible underlying mechanism in feeding and eating disorders (FED). This review aims to synthesise the current evidence on the role of adrenergic dysregulation in the pathogenesis and management of FED.
METHODS
A systematic review was conducted in MEDLINE, Cochrane Library, and Clinicaltrials.gov. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was adopted. Preclinical, clinical, and pharmacological studies assessing the adrenergic system in FED were included.
RESULTS
Thirty-one out of 1415 recognised studies were included. Preclinically, studies on adrenaline's anorectic impact, receptor subtypes, and effects on hepatic function in rats show that catecholamine anorexia is primarily alpha-adrenergic, whereas beta-adrenergic anorexia can be obtained only after puberty, implying an impact of sexual hormones. Clinically, catecholamine levels may be higher in FED patients than in healthy controls (HC). Individuals with anorexia nervosa (AN) may show higher epinephrine-induced platelet aggregability response than HC. Pharmacological trials suggest that the alpha-2-adrenergic medication clonidine may not lower AN symptoms, but agents regulating the adrenaline-noradrenaline neurotransmission (bupropion, reboxetine, duloxetine, sibutramine) have been found to improve binge eating symptoms.
CONCLUSION
Adrenergic dysregulation may be involved in the pathophysiology of FED. More research is needed to comprehend underlying mechanisms and treatment implications.
Topics: Humans; Rats; Animals; Anorexia; Feeding and Eating Disorders; Anorexia Nervosa; Catecholamines; Epinephrine; Adrenergic Agents; Bulimia Nervosa
PubMed: 37691603
DOI: 10.1080/15622975.2023.2245458 -
International Journal of Molecular... Apr 2024This study examines the impact of insulin-like growth factor 1 (IGF-1) and insulin-like growth factor 2 (IGF-2) on various aspects of children's health-from the realms... (Review)
Review
This study examines the impact of insulin-like growth factor 1 (IGF-1) and insulin-like growth factor 2 (IGF-2) on various aspects of children's health-from the realms of growth and puberty to the nuanced characteristics of metabolic syndrome, diabetes, liver pathology, carcinogenic potential, and cardiovascular disorders. A comprehensive literature review was conducted using PubMed, with a Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method employing specific keywords related to child health, obesity, and insulin-like growth factors. This study reveals associations between insulin-like growth factor 1 and birth weight, early growth, and adiposity. Moreover, insulin-like growth factors play a pivotal role in regulating bone development and height during childhood, with potential implications for puberty onset. This research uncovers insulin-like growth factor 1 and insulin-like growth factor 2 as potential biomarkers and therapeutic targets for metabolic dysfunction-associated liver disease and hepatocellular carcinoma, and it also highlights the association between insulin-like growth factors (IGFs) and cancer. Additionally, this research explores the impact of insulin-like growth factors on cardiovascular health, noting their role in cardiomyocyte hypertrophy. Insulin-like growth factors play vital roles in human physiology, influencing growth and development from fetal stages to adulthood. The impact of maternal obesity on children's IGF levels is complex, influencing growth and carrying potential metabolic consequences. Imbalances in IGF levels are linked to a range of health conditions (e.g., insulin resistance, glucose intolerance, metabolic syndrome, and diabetes), prompting researchers to seek novel therapies and preventive strategies, offering challenges and opportunities in healthcare.
Topics: Pregnancy; Child; Female; Humans; Insulin-Like Growth Factor I; Insulin-Like Growth Factor II; Metabolic Syndrome; Obesity; Insulin-Like Peptides; Diabetes Mellitus
PubMed: 38612776
DOI: 10.3390/ijms25073966 -
Nutrients May 2024Eating disorders (EDs) are mental health illnesses with a multifactorial origin. At present, no review of indexed publications studying their prevalence in Spain is... (Review)
Review
INTRODUCTION
Eating disorders (EDs) are mental health illnesses with a multifactorial origin. At present, no review of indexed publications studying their prevalence in Spain is available.
MATERIAL AND METHODS
A scoping review (PROSPERO -CRD42019140884-) was carried out through systematic searches (MEDLINE, EMBASE and PsycINFO) until January 2022. Papers published in Spanish/English analysing the prevalence of EDs in Spain (population < 65 years) were selected.
RESULTS
A total of 766 articles were identified (186 eliminated as duplicates). A total of 580 articles were analysed on the basis of title and abstract, and 67 articles were selected for full-text analysis. A total of 37 studies analysed the prevalence of EDs in Spain.
CONCLUSIONS
This is the first scoping review to analyse the prevalence of EDs in Spain. Puberty and adolescence are the most extensively studied stages. There is a high heterogeneity in the use of ED screening tools and a paucity of information on diagnostic tools.
Topics: Humans; Spain; Feeding and Eating Disorders; Prevalence; Adolescent; Female; Male; Adult; Child; Young Adult; Middle Aged
PubMed: 38794750
DOI: 10.3390/nu16101513 -
Journal of Pediatric and Adolescent... Aug 2023Menstrual dysfunction can impact both the physical and emotional health of young people. Multiple chronic diseases have been associated with menstrual dysfunction in... (Review)
Review
STUDY OBJECTIVE
Menstrual dysfunction can impact both the physical and emotional health of young people. Multiple chronic diseases have been associated with menstrual dysfunction in adults; however, there is little research in adolescents, despite nonadherence and suboptimal illness control in this group. We aimed to identify the impact of chronic illness on the age of menarche and the menstrual cycle in adolescents.
METHODS
Studies were extracted of female adolescents aged 10-19 who had a chronic physical illness. Data included outcomes on age of menarche and/or menstrual cycle quality. Exclusion criteria aimed to exclude diseases where menstrual dysfunction was a known part of the disease pathophysiology (ie, polycystic ovarian syndrome) or in which medications were used that directly impacted gonadal function. A literature search (to January 2022) was performed on the EMBASE, PubMed, and Cochrane library databases. Two widely used modified quality analysis tools were used.
RESULTS
Our initial search netted 1451 articles, of which 95 full texts were examined and 43 met the inclusion criteria. Twenty-seven papers focused on type 1 diabetes (T1D), with 8 papers examining adolescents with cystic fibrosis and the remaining studying inflammatory bowel disease, juvenile idiopathic arthritis, coeliac disease, and chronic renal disease. Metanalysis of 933 patients with T1D vs 5244 controls demonstrated a significantly later age of menarche in T1D (by 0.42 years; P ≤ .00001). There was also a significant association between higher HbA1c and insulin dose (IU/kg) and later age of menarche. Eighteen papers reviewed other aspects of menstruation, including dysmenorrhea, oligomenorrhoea, amenorrhea, and ovulatory function, with variable findings.
CONCLUSION
Most studies were small and in single populations. Despite this, there was evidence of delayed menarche and some evidence of irregular menses in those with cystic fibrosis and T1D. Further structured studies are needed to evaluate menstrual dysfunction in adolescents and how it relates to their chronic illness.
Topics: Adult; Female; Humans; Adolescent; Menstruation; Diabetes Mellitus, Type 1; Cystic Fibrosis; Menstruation Disturbances; Menarche; Menstrual Cycle; Chronic Disease
PubMed: 37192680
DOI: 10.1016/j.jpag.2023.05.005 -
Biological Psychiatry Jun 2024Puberty is a time of intense reorganization of brain structure and a high-risk period for the onset of mental health problems, with variations in pubertal timing and... (Review)
Review
Puberty is a time of intense reorganization of brain structure and a high-risk period for the onset of mental health problems, with variations in pubertal timing and tempo intensifying this risk. We conducted two systematic reviews of papers published up to 1 February 2024 focusing on (1) the role of brain structure in the relationship between puberty and mental health, and (2) precision psychiatry research evaluating the utility of puberty in making individualized predictions of mental health in young people. The first review provides inconsistent evidence on whether and how pubertal and psychopathological processes could interact in relation to brain development. While most studies found an association between early puberty and mental health difficulties in adolescents, evidence on whether brain structure mediates this relationship is mixed. The pituitary gland was found to be associated with mental health status during this time, possibly through its central role in regulating puberty and its function in the hypothalamic- pituitary-gonadal (HPG) and hypothalamic-pituitary-adrenal (HPA) axes. In the second review, the design of studies that have explored puberty in predictive models did not allow for a quantification of its predictive power. However, when puberty was evaluated through physically observable characteristics rather than hormonal measures, it was more commonly identified as a predictor of depression, anxiety, and suicidality in adolescence. Social processes might be more relevant than biological ones in the link between puberty and mental health problems, and represent an important target for educational strategies.
PubMed: 38925264
DOI: 10.1016/j.biopsych.2024.06.012 -
Journal of Functional Morphology and... Dec 2023A healthy lifestyle from early childhood is a crucial factor that influences bone-related factors in adulthood. In this context, physical education or psychomotricity... (Review)
Review
A healthy lifestyle from early childhood is a crucial factor that influences bone-related factors in adulthood. In this context, physical education or psychomotricity from early childhood is an important opportunity to face this problem. The present article aims to systematically summarize school-based interventions, evaluated through randomized controlled trial design, that influence the bones of children from early childhood. A systematic review of relevant articles was carried out using four main databases (PubMed, ProQuest Central (including 26 databases), Scopus, and Web of Sciences) until 12 November 2023. From a total of 42 studies initially found, 12 were included in the qualitative synthesis. In brief terms, from early childhood and during puberty, children's bones are particularly responsive to exercise, making this an ideal time for interventions to maximize bone health. Therefore, incorporating physical activity into school curriculums is a strategic approach for enhancing bone health in children. Mainly, plyometric exercises can significantly enhance bone density and geometry. Nevertheless, collaboration among educators, healthcare professionals, and parents is key for designing and implementing these effective interventions.
PubMed: 38535411
DOI: 10.3390/jfmk9010002