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Scientific Reports Aug 2021Converging evidence suggests that oxytocin (OT) is associated with creative thinking (CT) and that release of OT depends on ADP ribosyl-cyclases (CD38 and CD157). Neural...
Converging evidence suggests that oxytocin (OT) is associated with creative thinking (CT) and that release of OT depends on ADP ribosyl-cyclases (CD38 and CD157). Neural mechanisms of CT and OT show a strong association with dopaminergic (DA) pathways, yet the link between CT and CD38, CD157, dopamine receptor D2 (DRD2) and catechol-O-methyltransferase (COMT) peripheral gene expression remain inconclusive, thus limiting our understanding of the neurobiology of CT. To address this issue, two principal domains of CT, divergent thinking (AUT), were assessed. In men, both AUT is associated with gene expression of CD38, CD157, and their interaction CD38 × CD157. There were no significant associations for DA expression (DRD2, COMT, DRD2 × COMT) on both CT measures. However, analysis of the interactions of OT and DA systems reveal significant interactions for AUT in men. The full model explained a sizable 39% of the variance in females for the total CT score. The current findings suggest that OT and DA gene expression contributed significantly to cognition and CT phenotype. This provides the first empirical foundation of a more refined understanding of the molecular landscape of CT.
Topics: ADP-ribosyl Cyclase; ADP-ribosyl Cyclase 1; Adult; Antigens, CD; Catechol O-Methyltransferase; Cognition; Creativity; Dopamine; Dopamine Agents; Female; GPI-Linked Proteins; Gene Expression Regulation; Gene-Environment Interaction; Humans; Male; Membrane Glycoproteins; Oxytocics; Oxytocin; Polymorphism, Single Nucleotide; Receptors, Dopamine D2; Saliva; Sex Factors; Young Adult
PubMed: 34376746
DOI: 10.1038/s41598-021-95724-x -
The FEBS Journal Jan 2023Prostaglandin E2 (PGE2) is one of the most abundant prostaglandins and has been implicated in various diseases. Here, we aimed to explore the role of the PGE2 pathway in...
Prostaglandin E2 (PGE2) is one of the most abundant prostaglandins and has been implicated in various diseases. Here, we aimed to explore the role of the PGE2 pathway in mediating ferroptosis during acute kidney injury. When renal tubular epithelial cells stimulated by H O , the contents of glutathione (GSH) and glutathione peroxidase 4 (GPX4) decreased, whereas the level of lipid peroxide increased. Ferrostatin-1 can effectively attenuate these changes. In this process, the expression levels of cyclooxygenase (COX)-1 and COX-2 were up-regulated. Meanwhile, the expression of microsomal prostaglandin E synthase-2 was elevated, whereas the expression of microsomal prostaglandin E synthase-1 and cytosolic prostaglandin E synthase were down-regulated. Furthermore, the expression of 15-hydroxyprostaglandin dehydrogenase decreased. An excessive accumulation of PGE2 promoted ferroptosis, whereas the PGE2 inhibitor pranoprofen minimized the changes for COX-2, GSH, GPX4 and lipid peroxides. A decrease in the levels of the PGE2 receptor E-series of prostaglandin 1/3 partially restored the decline of GSH and GPX4 levels and inhibited the aggravation of lipid peroxide. Consistent with the in vitro results, increased PGE2 levels led to increased levels of 3,4-methylenedioxyamphetamine, Fe accumulation and decreased GSH and GPX4 levels during renal ischaemia/reperfusion injury injury in mice. Our results indicate that the PGE2 pathway mediated oxidative stress-induced ferroptosis in renal tubular epithelial cells.
Topics: Mice; Animals; Dinoprostone; Ferroptosis; Cyclooxygenase 2; Prostaglandin-E Synthases; Lipid Peroxides; Oxidative Stress; Epithelial Cells
PubMed: 36031392
DOI: 10.1111/febs.16609 -
Frontiers in Endocrinology 2022The vertebrate nonapeptide families arginine vasopressin (AVP) and oxytocin (OXT) are considered to have evolved from a single vasopressin-like peptide present in... (Review)
Review
The vertebrate nonapeptide families arginine vasopressin (AVP) and oxytocin (OXT) are considered to have evolved from a single vasopressin-like peptide present in invertebrates and termed arginine vasotocin in early vertebrate evolution. Unprecedented genome sequence availability has more recently allowed new insight into the evolution of nonapeptides and especially their receptor families in the context of whole genome duplications. In bony fish, nonapeptide homologues of AVP termed arginine vasotocin (Avp) and an OXT family peptide (Oxt) originally termed isotocin have been characterized. While reproductive roles of both nonapeptide families have historically been studied in several vertebrates, their roles in teleost reproduction remain much less understood. Taking advantage of novel genome resources and associated technological advances such as genetic modifications in fish models, we here critically review the current state of knowledge regarding the roles of nonapeptide systems in teleost reproduction. We further discuss sources of plasticity of the conserved nonapeptide systems in the context of diverse reproductive phenotypes observed in teleost fishes. Given the dual roles of preoptic area (POA) synthesized Avp and Oxt as neuromodulators and endocrine/paracrine factors, we focus on known roles of both peptides on reproductive behaviour and the regulation of the hypothalamic-pituitary-gonadal axis. Emphasis is placed on the identification of a gonadal nonapeptide system that plays critical roles in both steroidogenesis and gamete maturation. We conclude by highlighting key research gaps including a call for translational studies linking new mechanistic understanding of nonapeptide regulated physiology in the context of aquaculture, conservation biology and ecotoxicology.
Topics: Animals; Oxytocin; Vasotocin; Fishes; Reproduction; Arginine Vasopressin
PubMed: 36313759
DOI: 10.3389/fendo.2022.1005863 -
Revista Brasileira de Ginecologia E... Jun 2023
Topics: Humans; Pregnancy; Female; Misoprostol; Obstetrics; Oxytocics; Gynecology
PubMed: 37494579
DOI: 10.1055/s-0043-1770931 -
Communications Biology Feb 2020Oxytocin, a nonapeptide hormone, has a key role in female reproductive functions as well as in social memory in the brain. In our recent article, we reported that... (Review)
Review
Oxytocin, a nonapeptide hormone, has a key role in female reproductive functions as well as in social memory in the brain. In our recent article, we reported that oxytocin is transported from the peripheral blood into the brain by the receptor for advanced glycation end-products (RAGE) in endothelial cells at the blood−brain barrier. Additionally, we found that oral oxytocin is absorbed by RAGE on intestinal epithelial cells at the blood−intestinal barrier. From a physiological perspective, we herein outline the continuing research regarding oxytocin and social behaviour.
Topics: Animals; Blood-Brain Barrier; Brain; Female; Humans; Oxytocin; Pregnancy; Protein Transport; Receptor for Advanced Glycation End Products
PubMed: 32054984
DOI: 10.1038/s42003-020-0799-2 -
Ugeskrift For Laeger Sep 2021Medical abortion with combined mifepristone and misoprostol is a highly effective, safe, and widely used method for medical termination of pregnancy. In this review, it... (Review)
Review
Medical abortion with combined mifepristone and misoprostol is a highly effective, safe, and widely used method for medical termination of pregnancy. In this review, it is shown that self-testing with a urine human chorionic gonadotropin stix (detection limit greater than 25 IU/l) four weeks after administration of medication is a safe, practical, and cheap method to determine successful termination.
Topics: Abortion, Induced; Drug Therapy, Combination; Female; Humans; Mifepristone; Misoprostol; Pregnancy; Research Design
PubMed: 34596513
DOI: No ID Found -
Frontiers in Endocrinology 2020In this review, the role of oxytocin and oxytocin-like agents (acting via the oxytocin receptor and belonging to the oxytocin-family) in the male reproductive tract is... (Review)
Review
In this review, the role of oxytocin and oxytocin-like agents (acting via the oxytocin receptor and belonging to the oxytocin-family) in the male reproductive tract is considered. Previous research (dating back over 60 years) is revised and connected with recently found aspects of the role oxytocin plays in male reproductive health. The local expression of oxytocin and its receptor in the male reproductive tract of different species is summarized. Colocalization and possible crosstalk to other agents and receptors and their resulting effects are discussed. The role of the newly reported oxytocin focused signaling pathways in the male reproductive tract, other than mediating contractility, is critically examined. The structure and effect of the most promising oxytocin-agonists and -antagonists are reviewed for their potential in treating male disorders with origins in the male reproductive tract such as prostate diseases and ejaculatory disorders.
Topics: Animals; Arginine Vasopressin; Genitalia, Male; Hormone Antagonists; Humans; Male; Oxytocin; Prostatic Neoplasms; Receptors, Oxytocin; Signal Transduction
PubMed: 33193084
DOI: 10.3389/fendo.2020.565731 -
Pharmacology 2021Postpartum hemorrhage (PPH) remains a common cause of maternal mortality worldwide. Medical intervention plays an important role in the prevention and treatment of PPH.... (Review)
Review
BACKGROUND
Postpartum hemorrhage (PPH) remains a common cause of maternal mortality worldwide. Medical intervention plays an important role in the prevention and treatment of PPH. Prostaglandins (PGs) are currently recommended as second-line uterotonics, which are applied in cases of persistent bleeding despite oxytocin treatment.
SUMMARY
PG agents that are constantly used in clinical practice include carboprost, sulprostone, and misoprostol, representing the analogs of PGF2α, PGE2, and PGE1, respectively. Injectable PGs, when used to treat PPH, are effective in reducing blood loss but probably induce cardiovascular or respiratory side effects. Misoprostol is characterized by oral administration, low cost, stability in storage, broad availability, and minimal side effects. It remains a treatment option for uterine atony in low-resource settings, but its effectiveness as a uterotonic for independent application may be limited. Key Messages: The present review article discusses the physiological roles of various natural PGs, evaluates the existing evidence of PG analogs in the prevention and treatment of PPH, and finally provides a reference to assist obstetricians in selecting appropriate uterotonics.
Topics: Carboprost; Dinoprostone; Drug Administration Routes; Drug Stability; Female; Humans; Misoprostol; Postpartum Hemorrhage; Prostaglandins; Receptors, Prostaglandin; Uterus
PubMed: 34237742
DOI: 10.1159/000516631 -
Journal of Physiological Investigation Jan 2024Oxytocin (OXT), a neuropeptide originating from the hypothalamus and traditionally associated with peripheral functions in parturition and lactation, has emerged as a... (Review)
Review
Oxytocin (OXT), a neuropeptide originating from the hypothalamus and traditionally associated with peripheral functions in parturition and lactation, has emerged as a pivotal player in the central regulation of the autonomic nervous system (ANS). This comprehensive ANS, comprising sympathetic, parasympathetic, and enteric components, intricately combines sympathetic and parasympathetic influences to provide unified control. The central oversight of sympathetic and parasympathetic outputs involves a network of interconnected regions spanning the neuroaxis, playing a pivotal role in the real-time regulation of visceral function, homeostasis, and adaptation to challenges. This review unveils the significant involvement of the central OXT system in modulating autonomic functions, shedding light on diverse subpopulations of OXT neurons within the paraventricular nucleus of the hypothalamus and their intricate projections. The narrative progresses from the basics of central ANS regulation to a detailed discussion of the central controls of sympathetic and parasympathetic outflows. The subsequent segment focuses specifically on the central OXT system, providing a foundation for exploring the central role of OXT in ANS regulation. This review synthesizes current knowledge, paving the way for future research endeavors to unravel the full scope of autonomic control and understand multifaceted impact of OXT on physiological outcomes.
Topics: Oxytocin; Humans; Autonomic Nervous System; Animals
PubMed: 38780268
DOI: 10.4103/EJPI.EJPI-D-23-00037 -
The Journal of Maternal-fetal &... Dec 2023With the development of precision medicine and artificial intelligence, the infusion of many drugs has been intelligently controlled according to patients' conditions.... (Review)
Review
With the development of precision medicine and artificial intelligence, the infusion of many drugs has been intelligently controlled according to patients' conditions. However, the infusion of oxytocin (OT) still relies on medical staff responsible for implementing artificial regulation based on observation of fetal electronic monitoring and other maternal and fetal conditions. In this review, we discussed recent trends in intelligent infusion systems, the development status and dilemma of intelligent control of OT infusion, the drug intelligent feedback control system principle, and current risks and challenges to further promote obstetric informatization.
Topics: Pregnancy; Female; Humans; Oxytocin; Artificial Intelligence; Fetal Monitoring; Fetus; Fetal Diseases
PubMed: 37403363
DOI: 10.1080/14767058.2023.2230512