{
    "abstract": "Pulsatile gonadotropin-releasing hormone (GnRH) release is critical for reproduction. Disruptions to GnRH secretion patterns may contribute to polycystic ovary syndrome (PCOS). Prenatally androgenized (PNA) female mice recapitulate many neuroendocrine abnormalities observed in PCOS patients. PNA and development induce changes in spontaneous GnRH neuron firing rate, response to synaptic input, and the afterhyperpolarization potential of the action potential. We hypothesized potassium currents are altered by PNA treatment and/or development. Whole-cell patch-clamp recordings were made of transient and residual potassium currents of GnRH neurons in brain slices from 3-week-old and adult control and PNA females. At 3\u2009weeks of age, PNA treatment increased transient current density versus controls. Development and PNA altered voltage-dependent activation and inactivation of the transient current. In controls, transient current activation and inactivation were depolarized at 3\u2009weeks of age versus in adulthood. In GnRH neurons from 3-week-old mice, transient current activation and inactivation were more depolarized in control than PNA mice. Development and PNA treatment interacted to shift the time-dependence of inactivation and recovery from inactivation. Notably, in cells from adult PNA females, recovery was prolonged compared to all other groups. Activation of the residual current occurred at more depolarized membrane potentials in 3-week-old than adult controls. PNA depolarized activation of the residual current in adults. These findings demonstrate the properties of GnRH neuron potassium currents change during typical development, potentially contributing to puberty, and further suggest PNA treatment may both alter some typical developmental changes and induce additional modifications, which together may underlie aspects of the PNA phenotype. There was not any clinical trial involved in this work.",
    "authors": [
        {
            "affiliation": "The Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.",
            "firstname": "Jennifer",
            "initials": "J",
            "lastname": "Jaime"
        },
        {
            "affiliation": "Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.",
            "firstname": "R Anthony",
            "initials": "RA",
            "lastname": "DeFazio"
        },
        {
            "affiliation": "The Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.\nDepartment of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.\nDepartment of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA.\nDepartment of Obstetrics & Gynecology, University of Michigan, Ann Arbor, Michigan, USA.\nThe Reproductive Sciences Program, University of Michigan, Ann Arbor, Michigan, USA.",
            "firstname": "Suzanne M",
            "initials": "SM",
            "lastname": "Moenter"
        }
    ],
    "conclusions": null,
    "copyrights": "\u00a9 2024 The Authors. Journal of Neuroendocrinology published by John Wiley & Sons Ltd on behalf of British Society for Neuroendocrinology.",
    "doi": "10.1111/jne.13373\n10.1210/endo-111-5-1737\n10.1210/endo.130.1.1727719\n10.1210/endo-109-2-376\n10.1210/endo-128-1-509\n10.1055/s-2003-43304\n10.1507/endocrj.k09e-185\n10.1210/jc.2013-2809\n10.1016/j.steroids.2011.12.007\n10.1111/jne.13093\n10.1210/jcem-30-4-435\n10.1210/jcem-65-2-233\n10.1385/ENDO:30:1:3\n10.1210/jcem.79.1.8027216\n10.1016/j.fertnstert.2005.09.037\n10.1159/000341682\n10.1371/journal.pmed.1003132\n10.1073/pnas.0308058101\n10.1095/biolreprod.105.039800\n10.1016/j.taap.2010.05.017\n10.1210/en.2010-0823\n10.1210/en.2012-1283\n10.1073/pnas.1415038112\n10.1210/en.2017-00768\n10.1523/JNEUROSCI.2304-17.2018\n10.1002/0471142301.nsa04is48\n10.1210/me.2002-0163\n10.1111/j.1365-2826.2011.02145.x\n10.1523/ENEURO.0362-22.2022\n10.1038/s41598-020-63583-7\n10.1113/jphysiol.2010.191973\n10.1113/JP274474\n10.1113/jphysiol.1987.sp016517\n10.1523/ENEURO.0126-21.2021\n10.1210/me.2002-0155\n10.1085/jgp.70.5.549\n10.1007/s002490000091\n10.3389/neuro.03.020.2009\n10.1210/endocr/bqaa166\n10.1523/JNEUROSCI.2355-22.2023\n10.3389/fncel.2019.00265\n10.1016/0006-8993(85)91269-7\n10.1177/1073858409341085\n10.1016/s0896-6273(02)01173-x\n10.1038/nrn1949\n10.1016/j.nbd.2008.02.002\n10.1016/s0896-6273(01)00449-4\n10.1007/s00232-014-9670-z\n10.1523/ENEURO.0306-21.2021\n10.1016/j.devbrainres.2004.08.001\n10.1113/jphysiol.2007.128702\n10.1186/1744-8069-7-16\n10.1007/s12975-013-0297-7\n10.1101/cshperspect.a022871\n10.1073/pnas.0504270102\n10.1523/JNEUROSCI.2988-17.2017\n10.1523/JNEUROSCI.0378-19.2019\n10.1016/j.ebiom.2019.05.065\n10.1242/jeb.245222\n10.1001/jama.270.21.2590\n10.1016/s0735-1097(96)00454-8\n10.1007/s12576-016-0459-y\n10.1007/s12576-017-0590-4\n10.1007/s00210-014-1057-2\n10.3390/cancers7020813",
    "journal": "Journal of neuroendocrinology",
    "keywords": [
        "GnRH",
        "androgens",
        "polycystic ovary syndrome",
        "puberty"
    ],
    "methods": null,
    "publication_date": "2024-02-26",
    "pubmed_id": "38403894\n6751801\n1727719\n6788538\n1702704\n14593549\n19609045\n24423288\n22172593\n35083794\n5435284\n3597703\n17185786\n8027216\n16580394\n24002403\n32574161\n15096602\n15744016\n20621667\n21159854\n22778229\n25550522\n28938422\n29374136\n19575469\n12456806\n21518033\n36446571\n32332769\n20519310\n29214635\n2443676\n34135001\n10614664\n12351691\n591911\n11156298\n20057933\n33095238\n37536982\n31263403\n3002544\n20236949\n12526765\n16791145\n18387812\n11580900\n24838692\n34503965\n15464222\n17331991\n21345196\n24323720\n27141079\n16230634\n29263236\n31628184\n31178425\n36805713\n8230644\n8996300\n27241707\n1422988\n29332211\n25344202\n26010603",
    "results": null,
    "title": "Development and prenatal exposure to androgens alter potassium currents in gonadotropin-releasing hormone neurons from female mice.",
    "xml": "<Element 'PubmedArticle' at 0x7885025a6610>"
}