Plasma levels of prolactin were increased following intravenous self-administration of heroin by young men with a history of heroin addiction. Following 10 days of controlled heroin usage, tolerance could be demonstrated to the acute prolactin-releasing effect of heroin. There was no evidence that a single dose of naltrexone affected basal prolactin levels.
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http://dx.doi.org/10.1016/0091-3057(80)90431-1 | DOI Listing |
J Clin Endocrinol Metab
January 2025
Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Context: Pachydermoperiostosis (primary hypertrophic osteoarthropathy, PHO) usually due to biallelic loss-of-function variants in HPGD and SLCO2A1, has some features overlapping with acromegaly and often referred to endocrinologists. A detailed endocrine assessment is not available for these patients.
Objective: To assess the genetic and endocrine characteristics of PHO patients referred to endocrine centres with a possible diagnosis of acromegaly.
Subst Abuse Rehabil
January 2025
Department of Pharmacology and Toxicology, Faculty of Medicine, Umm Al Qura University, Makkah, Saudi Arabia.
Background: Many studies indicate that high and multiple doses of anabolic-androgenic steroids (AAS) for athletic enhancement can result in serious and irreversible adverse effects. A study that includes laboratory blood testing to evaluate the direct effects of AAS agents among users has not been previously undertaken. The purpose of this study was to investigate the adverse effects of the use of AAS by athletes and to determine whether AAS use leads to changes in certain blood parameters.
View Article and Find Full Text PDFJCEM Case Rep
February 2025
Clinica Medica 3, Department of Medicine-DIMED, University Hospital of Padova, Padova 35128, Italy.
Growth hormone (GH) secretion by the pituitary is regulated by stimulatory and inhibitory pathways such as growth hormone releasing hormone (GHRH) and somatostatin, respectively, being also modulated by different neurotransmitters acting at the hypothalamic/pituitary level. The pineal gland hormone melatonin regulates GH secretion in many mammals, including humans, although its role in modulating GH secretion has been debated. We describe the case of a young woman chronically taking melatonin for sleep disturbances, referring to her general practitioner for flushing that appeared just after starting melatonin intake.
View Article and Find Full Text PDFArch Endocrinol Metab
January 2025
Henry Ford Health Hermelin Brain Tumor Center Department of Neurosurgery DetroitMI USA Henry Ford Health, Omics Laboratory, Hermelin Brain Tumor Center, Department of Neurosurgery, Detroit, MI, USA.
The aim of this study is to describe the management and evolution of a patient with the rare condition of double lactotroph tumors and assess the role of intraoperative ultrasonography (IOUS) for their detection and methylation-based liquid biopsy for their diagnosis and monitoring. A 29-year-old woman diagnosed with double lactotroph tumors through hormonal and MRI workup underwent surgical resection due to cabergoline intolerance. To detect a tumor missing through visual inspection, IOUS was performed.
View Article and Find Full Text PDFJ Mol Endocrinol
January 2025
L Maletinska, Biochemistry, Czech Academy of Sciences, Praha, Czech Republic.
Lipopolysaccharides (LPS) are major components of Gram-negative bacteria. LPS not only induce endotoxemia and inflammation, but also contribute to various diseases. In experimental settings, LPS administration serves as a model for acute inflammatory responses.
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