{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T17:35:33Z","timestamp":1791653733490,"version":"4.3.4"},"reference-count":78,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2025,1,8]],"date-time":"2025-01-08T00:00:00Z","timestamp":1736294400000},"content-version":"unspecified","delay-in-days":7,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["J Dev Orig Health Dis"],"published-print":{"date-parts":[[2025]]},"abstract":"<jats:title>Abstract<\/jats:title>\n\t  <jats:p>Preterm birth exposes the neonate to hypoxic-ischaemic and excitotoxic insults that impair neurodevelopment and are magnified by the premature loss of placentally supplied, inhibitory neurosteroids. The cerebellum is a neuronally dense brain region, which undergoes critical periods of development during late gestation, when preterm births frequently occur. We propose that neurosteroid replacement therapy using tiagabine and zuranolone will protect the cerebellum against preterm-associated insults. Guinea pig dams received c-section surgery preterm (gestational age (GA) 64) or at term (GA70) with preterm pups administered tiagabine (2.5 mg\/kg\/day), zuranolone (1 mg\/kg\/day) or vehicle (15% \u03b2-cyclodextrin) until term equivalent age (GA70). Behavioural testing was performed at corrected postnatal day 8 (PND8) and PND41 with tissue collection occurring at PND42. Neurodevelopmental markers (MBP, OLIG2 and NeuN) were assessed within the cerebellum by immunohistochemistry, whilst GABAergic and glutamatergic pathway expression was quantified using high throughput RT-PCR. Zuranolone and, to a lesser extent, tiagabine were able to protect against hyperactive behaviour at PND8 in males, whilst in females, a less marked hyperactive phenotype was present with neither treatment impacting behaviour further. Both treatments improved MBP staining, whilst tiagabine was found to restore oligodendrocyte maturation in females only. GABAergic and glutamatergic pathway expression was found to be restored by both treatments in females. Overall, this study demonstrates the neuroprotective attributes of neurosteroid replacement therapy using tiagabine and zuranolone, thereby demonstrating their potential to mitigate long-term neurodevelopmental impairments. Furthermore, the sexually dimorphic effects observed suggest future investigations may show increased benefit by using sex-specific treatment regimes.<\/jats:p>","DOI":"10.1017\/s2040174424000394","type":"journal-article","created":{"date-parts":[[2025,1,8]],"date-time":"2025-01-08T10:35:15Z","timestamp":1736332515000},"update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":1,"title":["Neurosteroid replacement therapy using tiagabine and zuranolone restores cerebellar neurodevelopment and reduces hyperactive behaviour following preterm birth"],"prefix":"10.1017","volume":"16","author":[{"given":"Carlton L.","family":"Pavy","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3268-4609","authenticated-orcid":false,"given":"Julia C.","family":"Shaw","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hannah K.","family":"Palliser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roisin A.","family":"Moloney","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan J.","family":"Hirst","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2025,1,8]]},"reference":[{"key":"S2040174424000394_ref18","doi-asserted-by":"publisher","DOI":"10.1038\/nrn920"},{"key":"S2040174424000394_ref55","doi-asserted-by":"publisher","DOI":"10.1017\/S2040174415001075"},{"key":"S2040174424000394_ref54","doi-asserted-by":"publisher","DOI":"10.1016\/j.psyneuen.2021.105423"},{"key":"S2040174424000394_ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.clp.2006.09.004"},{"key":"S2040174424000394_ref73","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M500381200"},{"key":"S2040174424000394_ref37","first-page":"Cd004661","article-title":"Magnesium sulphate for women at risk of preterm birth for neuroprotection of the fetus","volume":"5","author":"Shepherd","year":"2024","journal-title":"Cochrane Database Syst Rev"},{"key":"S2040174424000394_ref14","doi-asserted-by":"publisher","DOI":"10.3389\/fcell.2022.1068288"},{"key":"S2040174424000394_ref29","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0092862"},{"key":"S2040174424000394_ref3","doi-asserted-by":"publisher","DOI":"10.1016\/j.siny.2012.01.007"},{"key":"S2040174424000394_ref25","volume-title":"Neuroscience. 2nd edition","author":"Purves","year":"2001"},{"key":"S2040174424000394_ref35","doi-asserted-by":"publisher","DOI":"10.3345\/cep.2021.00164"},{"key":"S2040174424000394_ref22","doi-asserted-by":"publisher","DOI":"10.1007\/s00431-011-1409-6"},{"key":"S2040174424000394_ref30","doi-asserted-by":"publisher","DOI":"10.1007\/s12311-015-0715-3"},{"key":"S2040174424000394_ref43","doi-asserted-by":"publisher","DOI":"10.1016\/j.jns.2020.117277"},{"key":"S2040174424000394_ref72","doi-asserted-by":"publisher","DOI":"10.1126\/science.1975955"},{"key":"S2040174424000394_ref66","doi-asserted-by":"publisher","DOI":"10.1002\/ana.22627"},{"key":"S2040174424000394_ref46","first-page":"Cd001908","article-title":"Tiagabine add-on therapy for drug-resistant focal epilepsy","volume":"10","author":"Bresnahan","year":"2019","journal-title":"Cochrane Database Syst Rev"},{"key":"S2040174424000394_ref52","doi-asserted-by":"publisher","DOI":"10.1017\/S2040174415000069"},{"key":"S2040174424000394_ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.addr.2021.04.021"},{"key":"S2040174424000394_ref75","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropharm.2007.09.013"},{"key":"S2040174424000394_ref56","doi-asserted-by":"publisher","DOI":"10.1016\/j.psyneuen.2022.105705"},{"key":"S2040174424000394_ref62","doi-asserted-by":"publisher","DOI":"10.1038\/s41380-023-02173-1"},{"key":"S2040174424000394_ref2","doi-asserted-by":"publisher","DOI":"10.1016\/j.siny.2015.12.011"},{"key":"S2040174424000394_ref8","unstructured":"8. 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