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Filename: controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
Line: 249
Function: _error_handler
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File: /var/www/html/application/controllers/Detail.php
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Filename: models/Detail_model.php
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Dehydroepiandrosterone (DHEA) and its sulfated metabolite (DHEAS) are dynamically regulated before birth and the onset of puberty. Yet, the origins and purpose of increasing DHEA[S] in postnatal development remain elusive. Here, we draw attention to this pre-pubertal surge from the adrenal gland-the adrenarche-and discuss whether this is the result of intra-adrenal gene expression specifically affecting the zona reticularis (ZR), if the ZR is influenced by the hypothalamic-pituitary axis, and the possible role of spino-sympathetic innervation in prompting increased ZR activity. We also discuss whether neural DHEA[S] synthesis is coordinately regulated with the developing adrenal gland. We propose that DHEA[S] is crucial in the brain maturation of humans prior to and during puberty, and suggest that the function of the adrenarche is to modulate, adapt and rewire the pre-adolescent brain for new and ever-changing social challenges. The etiology of DHEA[S] synthesis, neurodevelopment and recently described 11-keto and 11-oxygenated androgens are difficult to investigate in humans owing to: (i) ethical restrictions on mechanistic studies, (ii) the inability to predict which individuals will develop specific mental characteristics, and (iii) the difficulty of conducting retrospective studies based on perinatal complications. We discuss new opportunities for animal studies to overcome these important issues.
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http://dx.doi.org/10.3390/ijms22094296 | DOI Listing |
Environ Pollut
December 2024
Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China. Electronic address:
Bisphenol F (BPF) is an environmental endocrine disruptor capable of crossing the placental barrier and affecting the growth and development of offspring. Despite its potential impact, systematic research about effects of BPF on the reproductive function of male offspring remains limited. In this study, pregnant female mice were exposed to BPF at doses of 40, 400, and 4000 μg/kg during gestation and lactation, respectively, to evaluate its impact on testicular damage, testosterone levels, and spermatogenesis of male offspring (F1 generation), and further explore the mechanisms using transcriptomics.
View Article and Find Full Text PDFBone
December 2024
Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. Electronic address:
Background: Differences in bone metabolism between patients with adrenal Cushing's syndrome (ACS) and Cushing's disease (CD) have been noted, but the impact of steroid hormones on bone metabolism remains underexplored. The purpose of this study is to explore the differences in bone metabolism between the two subtypes of Cushing's syndrome and the correlation between hormones synthesized by the adrenal reticulum and bone metabolism.
Method: This retrospective study included 75 premenopausal women, consisting of 33 patients with CD and 42 patients with ACS.
Clin Chim Acta
December 2024
Endocrine Laboratory, Department of Laboratory Medicine, Amsterdam UMC, Location University of Amsterdam, Amsterdam Gastroenterology Endocrinology & Metabolism, Meibergdreef 9, Amsterdam 1105 AZ, the Netherlands; Endocrine Laboratory, Department of Laboratory Medicine, Amsterdam UMC, Location Vrije Universiteit Amsterdam, Amsterdam Gastroenterology Endocrinology & Metabolism, De Boelelaan 1117, Amsterdam 1081 HV, the Netherlands; Endocrine Laboratory, Department of Laboratory Medicine, Amsterdam UMC, Location University of Amsterdam, Amsterdam Reproduction & Development, Meibergdreef 9, Amsterdam 1105 AZ, the Netherlands; Endocrine Laboratory, Department of Laboratory Medicine, Amsterdam UMC, Location Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development, De Boelelaan 1117, Amsterdam 1081 HV, the Netherlands. Electronic address:
Background: An important aspect of the shift towards dried blood spots (DBS) as a sample matrix for laboratory measurements, is the availability of robust liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods that can reliably quantify analyte concentrations in DBS. The development and validation of these LC-MS/MS methods, however, concerns an extensive process, for which large amounts of DBS samples are required. DBS are usually obtained from capillary blood samples, but they can also be prepared from venous (residual) blood samples, which are widely available in clinical laboratories.
View Article and Find Full Text PDFScand J Clin Lab Invest
December 2024
Hormone Laboratory, Department of Medical Biochemistry and Biochemical Endocrinology and Metabolism Research Group, Oslo University Hospital, Aker, Oslo, Norway.
Saliva samples offer the possibility to obtain stress-free non-invasive samples, also for home-testing, especially useful when blood collection is either undesirable or difficult. The aim of this work was to develop an LC-MS/MS method to determine clinically relevant steroid hormones cortisol, cortisone, 11-deoxycortisol, 21-deoxycortisol, 17OH-progesterone, aldosterone, corticosterone, deoxycorticosterone, testosterone, androstenedione, DHEAS, DHEA, 17OH-pregnenolone, betamethasone and dexamethasone. A special effort was made to adapt the method to neonatal population with respect to choice of saliva as matrix, low sample volumes, selection of analytes and multiplexing.
View Article and Find Full Text PDFBMC Genomics
December 2024
Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China.
Background: The ovary is a central organ in the reproductive system that produces oocytes and synthesizes and secretes steroid hormones. Healthy development and regular cyclical change in the ovary is crucial for regulating reproductive processes. However, the key genes and metabolites that regulate ovarian development and pregnancy have not been fully elucidated.
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