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Neuroactive steroid biosynthesis during pregnancy predicts future postpartum depression: a role for the 3α and/or 3β-HSD neurosteroidogenic enzymes?
Neuropsychopharmacology
January 2025
Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA, USA.
Postpartum depression (PPD) affects ~10-15% of childbearing individuals, with deleterious consequences for two generations. Recent research has explored the biological mechanisms of PPD, particularly neuroactive steroids (NAS). We sought here to investigate associations between NAS levels and ratios during pregnancy and the subsequent development of depressive symptoms with postpartum onset.
View Article and Find Full Text PDFTofacitinib and budesonide treatment affect stemness and chemokine release in IBD patient-derived colonoids.
Sci Rep
January 2025
Department of Clinical and Molecular Medicine (IKOM), Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Prinsesse Kristinas gt. 1, Trondheim, 7030, Norway.
Restoration of the intestinal epithelial barrier is crucial for achieving mucosal healing, the therapeutic goal for inflammatory bowel disease (IBD). During homeostasis, epithelial renewal is maintained by crypt stem cells and progenitors that cease to divide as they differentiate into mature colonocytes. Inflammation is a major effector of mucosal damage in IBD and has been found to affect epithelial stemness, regeneration and cellular functions.
View Article and Find Full Text PDFHeterotropic allosteric modulation of CYP3A4 in vitro by progesterone: Evidence for improvement in prediction of time-dependent inhibition for macrolides.
Drug Metab Dispos
January 2025
Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana.
Predictions of drug-drug interactions resulting from time-dependent inhibition (TDI) of CYP3A4 have consistently overestimated or mispredicted (ie, false positives) the interaction that is observed in vivo. Recent findings demonstrated that the presence of the allosteric modulator progesterone (PGS) in the in vitro assay could alter the in vitro kinetics of CYP3A4 TDI with inhibitors that interact with the heme moiety, such as metabolic-intermediate complex forming inhibitors. The impact of the presence of 100 μM PGS on the TDI of molecules in the class of macrolides typically associated with metabolic-intermediate complex formation was investigated.
View Article and Find Full Text PDFCholic acid inhibits ovarian steroid hormone synthesis and follicular development through farnesoid X receptor signaling in mice.
Int J Biol Macromol
January 2025
State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China. Electronic address:
This study investigated the effects of cholic acid (CA) on steroid hormone synthesis and follicular development in mouse ovaries and the regulatory mechanism of CA on the expression of steroidogenesis-related genes in granulosa cells. The mice were divided into control and CA groups, and serum and ovarian samples were collected after 1, 2, and 4 months of treatment, respectively. The results showed that CA treatment for 1, 2, and 4 months reduced ovarian weights, disrupted the estrous cycle, decreased the number of antral follicles and corpora lutea, and lowered the serum levels of progesterone and estradiol.
View Article and Find Full Text PDFVitamin D differentiates dopamine neurons in vitro, increasing neurite architecture, dopamine release and expression of relevant synaptic proteins.
J Steroid Biochem Mol Biol
January 2025
Queensland Brain Institute, University of Queensland, Qld 4072, Australia; Queensland Centre for Mental Health Research, Wacol, Qld 4076, Australia. Electronic address:
Epidemiological studies often link circulatory levels of 25 hydroxy vitamin D with an overwhelming variety of disorders. Of such studies, an increasing number are now linking blood 25 hydroxy vitamin D levels with certain brain disorders. Prominent amongst such disorders are schizophrenia and Parkinson's disease.
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