PMID- 35113852 OWN - NLM STAT- MEDLINE DCOM- 20220210 LR - 20240226 IS - 1545-7885 (Electronic) IS - 1544-9173 (Print) IS - 1544-9173 (Linking) VI - 20 IP - 2 DP - 2022 Feb TI - A feature of maternal sleep apnea during gestation causes autism-relevant neuronal and behavioral phenotypes in offspring. PG - e3001502 LID - 10.1371/journal.pbio.3001502 [doi] LID - e3001502 AB - Mounting epidemiologic and scientific evidence indicates that many psychiatric disorders originate from a complex interplay between genetics and early life experiences, particularly in the womb. Despite decades of research, our understanding of the precise prenatal and perinatal experiences that increase susceptibility to neurodevelopmental disorders remains incomplete. Sleep apnea (SA) is increasingly common during pregnancy and is characterized by recurrent partial or complete cessations in breathing during sleep. SA causes pathological drops in blood oxygen levels (intermittent hypoxia, IH), often hundreds of times each night. Although SA is known to cause adverse pregnancy and neonatal outcomes, the long-term consequences of maternal SA during pregnancy on brain-based behavioral outcomes and associated neuronal functioning in the offspring remain unknown. We developed a rat model of maternal SA during pregnancy by exposing dams to IH, a hallmark feature of SA, during gestational days 10 to 21 and investigated the consequences on the offspring's forebrain synaptic structure, synaptic function, and behavioral phenotypes across multiples stages of development. Our findings represent a rare example of prenatal factors causing sexually dimorphic behavioral phenotypes associated with excessive (rather than reduced) synapse numbers and implicate hyperactivity of the mammalian target of rapamycin (mTOR) pathway in contributing to the behavioral aberrations. These findings have implications for neuropsychiatric disorders typified by superfluous synapse maintenance that are believed to result, at least in part, from largely unknown insults to the maternal environment. FAU - Vanderplow, Amanda M AU - Vanderplow AM AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Kermath, Bailey A AU - Kermath BA AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Bernhardt, Cassandra R AU - Bernhardt CR AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Gums, Kimberly T AU - Gums KT AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Seablom, Erin N AU - Seablom EN AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Radcliff, Abigail B AU - Radcliff AB AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Ewald, Andrea C AU - Ewald AC AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Jones, Mathew V AU - Jones MV AD - Department of Neuroscience, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Baker, Tracy L AU - Baker TL AUID- ORCID: 0000-0001-9047-3052 AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Watters, Jyoti J AU - Watters JJ AUID- ORCID: 0000-0003-1051-506X AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. FAU - Cahill, Michael E AU - Cahill ME AUID- ORCID: 0000-0003-0574-2655 AD - Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America. LA - eng GR - R01 HL105511/HL/NHLBI NIH HHS/United States GR - R01 HL142752/HL/NHLBI NIH HHS/United States GR - R25 GM083252/GM/NIGMS NIH HHS/United States GR - T32 HD041921/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20220203 PL - United States TA - PLoS Biol JT - PLoS biology JID - 101183755 RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Animals MH - Autistic Disorder/etiology MH - *Behavior, Animal MH - Disease Models, Animal MH - Female MH - Hypoxia/*physiopathology MH - Male MH - Pregnancy MH - Prenatal Exposure Delayed Effects/*etiology/physiopathology MH - Prosencephalon/growth & development/physiopathology MH - Rats, Sprague-Dawley MH - Sex Characteristics MH - Sleep Apnea Syndromes MH - Synapses/*pathology MH - TOR Serine-Threonine Kinases MH - Rats PMC - PMC8812875 COIS- The authors have declared that no competing interests exist. EDAT- 2022/02/04 06:00 MHDA- 2022/02/11 06:00 PMCR- 2022/02/03 CRDT- 2022/02/03 17:17 PHST- 2021/04/13 00:00 [received] PHST- 2021/11/29 00:00 [accepted] PHST- 2022/02/03 17:17 [entrez] PHST- 2022/02/04 06:00 [pubmed] PHST- 2022/02/11 06:00 [medline] PHST- 2022/02/03 00:00 [pmc-release] AID - PBIOLOGY-D-21-00991 [pii] AID - 10.1371/journal.pbio.3001502 [doi] PST - epublish SO - PLoS Biol. 2022 Feb 3;20(2):e3001502. doi: 10.1371/journal.pbio.3001502. eCollection 2022 Feb.