Search Results - "Upners, Emmie N."
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Dynamic Changes of Reproductive Hormones in Male Minipuberty: Temporal Dissociation of Leydig and Sertoli Cell Activity
Published in The journal of clinical endocrinology and metabolism (01-06-2022)“…The male hypothalamic-pituitary-gonadal (HPG) axis is transiently active during the first months of life with surging serum concentrations of reproductive…”
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Exposure to 15 phthalates and two substitutes (DEHTP and DINCH) assessed in trios of infants and their parents as well as longitudinally in infants exclusively breastfed and after the introduction of a mixed diet
Published in Environment international (01-03-2022)“…[Display omitted] •Metabolites of 15 phthalates and the two substitutes DEHTP and DINCH were analyzed in urine from Danish infants and their…”
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Benzophenones, bisphenols and other polychlorinated/phenolic substances in Danish infants and their parents – including longitudinal assessments before and after introduction to mixed diet
Published in Environment international (01-11-2022)“…[Display omitted] •Urinary concentrations of 12 out of 22 benzophenones, bisphenols and other phenols were observed in healthy Danish infants and their…”
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Longitudinal evaluation of breast tissue in healthy infants: Prevalence and relation to reproductive hormones and growth factors
Published in Frontiers in endocrinology (Lausanne) (01-12-2022)“…Breast tissue in infancy is a rather undescribed phenomenon. We aimed to describe the prevalence and progression of palpable breast tissue in healthy boys and…”
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An Intramuscular Injection of Mixed Testosterone Esters Does Not Acutely Enhance Strength and Power in Recreationally Active Young Men
Published in Frontiers in physiology (23-09-2020)“…Purpose : Limited data are available on the acute performance-enhancing effects of single-dose administration of testosterone in healthy humans. Studies of…”
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Serum LH/FSH ratios in 87 infants with differences of sex development
Published in Endocrine Connections (01-03-2023)“…The ratio between luteinizing hormone (LH) and follicle-stimulating hormone (FSH) has previously been described as an excellent marker of sex in healthy…”
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Evaluation and phenotypic characteristics of 293 Danish girls with tall stature: effects of oral administration of natural 17β-estradiol
Published in Pediatric research (01-11-2016)“…Background: Reduction of adult height by sex steroid treatment was introduced decades ago in tall statured children, but controlled trials are lacking and…”
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Polygenic Scores for Adult Testosterone and SHBG Levels Are Associated With Reproductive Hormone Levels in Male Infants
Published in The journal of clinical endocrinology and metabolism (13-08-2024)“…Abstract Context The hypothalamic-pituitary-gonadal axis's transient activity in infancy, i.e, minipuberty, is considered crucial for male reproductive…”
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A Biphasic Pattern of Reproductive Hormones in Healthy Female Infants: The COPENHAGEN Minipuberty Study
Published in The journal of clinical endocrinology and metabolism (01-09-2022)“…Minipuberty, a period of a transient activation of the hypothalamic-pituitary-gonadal (HPG) axis in both sexes, enables evaluation of gonadal function in…”
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Anogenital Distance in Healthy Infants: Method-, Age- and Sex-related Reference Ranges
Published in The journal of clinical endocrinology and metabolism (01-09-2020)“…Abstract Context The use of anogenital distance (AGD) in clinical and epidemiological settings is increasing; however, sex-specific reference data on AGD and…”
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Does height and IGF-I determine pubertal timing in girls?
Published in Pediatric research (01-07-2021)“…Background Pubertal timing is closely linked to growth regulated by the growth hormone/insulin-like factor (GH/IGF) axis that includes IGF-regulating factors…”
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Dynamic changes in LH/FSH ratios in infants with normal sex development
Published in European journal of endocrinology (01-07-2022)“…Objective Little is known about the ratio between luteinizing hormone (LH) and follicle-stimulating hormone (FSH) during infancy. This study aimed to evaluate…”
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Stability and detectability of testosterone esters in dried blood spots after intramuscular injections
Published in Drug testing and analysis (01-11-2022)“…While misuse of testosterone esters is widespread in elite and recreational sports, direct detection of intact testosterone esters in doping control samples is…”
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Sex- and age-specific reference intervals of 16 steroid metabolites quantified simultaneously by LC-MS/MS in sera from 2458 healthy subjects aged 0 to 77 years
Published in Clinica chimica acta (15-08-2024)“…•A novel, specific, and sensitive isotope diluted LC-MS/MS method was developed for simultaneous quantitation of 16 steroid hormone metabolites.•Steroid…”
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Dynamic Changes in Serum IGF-I and Growth During Infancy: Associations to Body Fat, Target Height, and PAPPA2 Genotype
Published in The journal of clinical endocrinology and metabolism (01-01-2022)“…IGF-I is important for postnatal growth and may be of diagnostic value in infants suspected of pituitary disease; however, little is known about the impact of…”
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Timing of Puberty, Pubertal Growth, and Adult Height in Short Children Born Small for Gestational Age Treated With Growth Hormone
Published in The journal of clinical endocrinology and metabolism (01-08-2022)“…Abstract Context Growth hormone (GH) is used to treat short children born small for gestational age (SGA); however, the effects of treatment on pubertal timing…”
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Cohort profile: The COPENHAGEN Minipuberty Study—A longitudinal prospective cohort of healthy full‐term infants and their parents
Published in Paediatric and perinatal epidemiology (01-09-2021)“…Background The hypothalamic‐pituitary‐gonadal (HPG) axis governs sexual maturation and reproductive function in humans. In early postnatal life, it is…”
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Urinary concentration of phthalates and bisphenol A during minipuberty is associated with reproductive hormone concentrations in infant boys
Published in International journal of hygiene and environmental health (01-05-2023)“…The transient postnatal activation of the hypothalamic-pituitary-gonadal hormone axis is termed minipuberty and considered an important developmental period,…”
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Changes in blood parameters after intramuscular testosterone ester injections – Implications for anti‐doping
Published in Drug testing and analysis (01-08-2020)“…Testosterone treatment stimulates the production of red blood cells and alters iron homeostasis. Thus, we investigated whether the ‘haematological module’ of…”
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