The aim of the study was to evaluate the diagnostic and prognostic significance of leptin receptor isoforms in adrenal tumors. In a single-center study, 96 patients (19 with adrenal cortical carcinoma and 77 with benign tumors) underwent an adrenalectomy. A total of 14 unaffected adrenal gland tissues from kidney donors were used as controls. Fasting blood samples were collected for laboratory tests, and mRNA expressions of leptin receptor isoforms were assessed by RT-qPCR. The study analyzed correlations between mRNA expressions and clinical data and measured NCI-H295R cell proliferation via a real-time cell analyzer. All adrenal lesions expressed leptin receptor isoforms. Significantly lower LepR1 expression was observed in carcinoma tissues than in adenomas and controls ( = 0.016). Expressions of LepR3&LepR6 were correlated with overall survival ( = 0.036), while LepR2&LepR4 and LepR5 expressions were inversely related to morning serum cortisol levels ( = 0.041). Leptin reduced NCI-H295R cell proliferation ( < 0.0001). The study highlights the diagnostic and prognostic significance of leptin receptor isoforms in adrenal tumors. Specifically, LepR1 may serve as a diagnostic marker for carcinomas, while LepR3&LepR6 have potential use as prognostic markers.
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http://dx.doi.org/10.3390/ijms25168682 | DOI Listing |
Biochem Biophys Res Commun
December 2024
Yancheng Clinical College, Xuzhou Medical University, Yancheng, 224000, PR China. Electronic address:
Diabetes is one of the most prevalent metabolic disorders, and its incidence has been experiencing a steady annual rise in recent years. Diabetic peripheral neuropathy (DPN) represents the most frequent adverse complication, exerting a profound impact on the quality of life for those suffering from diabetes. The etiology of DPN is complex, including impaired mitochondrial function.
View Article and Find Full Text PDFWorld J Exp Med
December 2024
Department of Internal Medicine, Gayatri Vidya Parishad Institute of Healthcare and Medical Technology, Visakhapatnam 530048, Andhra Pradesh, India.
Obesity is increasingly prevalent worldwide, with genetic factors contributing to its development. The hypothalamic leptin-melanocortin pathway is central to the regulation of appetite and weight; leptin activates the proopiomelanocortin neurons, leading to the production of melanocortin peptides; these in turn act on melanocortin 4 receptors (MC4R) which suppress appetite and increase energy expenditure. MC4R mutations are responsible for syndromic and non-syndromic obesity.
View Article and Find Full Text PDFPediatr Res
December 2024
Division of Molecular Genetics, Department of Pediatrics, Columbia University Irving Medical Center, New York, NY, USA.
Obesity and weight regulation disorders are determined by the combined effects of genetics and environment. Polygenic obesity results from the combination of common variants in several genes which predisposes the individual to obesity and its related complications. In contrast, monogenic obesity results from changes in single genes, especially those in leptin-melanocortin pathway, and presents with early onset severe obesity, with or without other syndromic features.
View Article and Find Full Text PDFNeurosci Lett
December 2024
AdipoBrain, Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, 28660 Madrid, Spain. Electronic address:
Neurosci Lett
December 2024
Department of Anatomy and Neurobiology, Graduate School of Medicine, Nippon Medical School, Bunkyo-ku, Tokyo 113-8602, Japan.
Kisspeptin and galanin-like peptide (GALP) neurons in the hypothalamic arcuate nucleus (ARC) are involved in gonadotropin-releasing hormone (GnRH) neuron-mediated pulsatile luteinizing hormone (LH) secretion. Zucker fatty (ZF) rats display a leptin receptor gene abnormality and suppressed pulsatile LH secretion. ZF rats reportedly exhibit low hypothalamic GALP and kisspeptin expression, and GALP administration induces LH release in ZF rats.
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