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Fetal growth outcomes following peri-implantation exposure of Long-Evans rats to noise and ozone differ by sex

Biology of sex differences, 2019-12, Vol.10 (1), p.54-13, Article 54 [Peer Reviewed Journal]

2019. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s). 2019 ;ISSN: 2042-6410 ;EISSN: 2042-6410 ;DOI: 10.1186/s13293-019-0270-6 ;PMID: 31791410

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Title:
Fetal growth outcomes following peri-implantation exposure of Long-Evans rats to noise and ozone differ by sex
Author: Miller, Colette N ; Kodavanti, Urmila P ; Stewart, Erica J ; Schladweiler, Mette C ; Richards, Judy H ; Snow, Samantha J ; Henriquez, Andres R ; Oshiro, Wendy M ; Farraj, Aimen K ; Hazari, Mehdi S ; Dye, Janice A
Subjects: Air pollution ; Air Pollution - adverse effects ; Animals ; Birth weight ; Blood flow ; Environmental Exposure - adverse effects ; Female ; Fetal Development ; Fetal Growth Retardation - etiology ; Fetal Growth Retardation - physiopathology ; Fetuses ; Food ; Gestation ; Growth rate ; Implantation ; Inhalation ; Intrauterine growth restriction ; Laboratories ; Low-birth-weight ; Male ; Noise ; Noise - adverse effects ; Noise pollution ; Nutrient status ; Ozone ; Ozone - adverse effects ; Placenta ; Pollutants ; Preeclampsia ; Pregnancy ; Progeny ; Rats, Long-Evans ; Regional Blood Flow ; Sex Characteristics ; Sex differences ; Ultrasound ; Uterine Artery - physiology ; Uterus
Is Part Of: Biology of sex differences, 2019-12, Vol.10 (1), p.54-13, Article 54
Description: Exposure to air pollution and high levels of noise have both been independently associated with the development of adverse pregnancy outcomes including low birth weight. However, exposure to such environmental stressors rarely occurs in isolation and is often co-localized, especially in large urban areas. The purpose of this study was to compare the effects of combined exposure to noise (N) or ozone (O ), compared to either exposure alone. Long-Evans dams were exposed to air or 0.4 ppm ozone for 4 h on gestation day (GD) 5 and 6, coinciding with implantation receptivity. A subset of dams from each exposure group was further exposed to intermittent white noise (~ 85 dB) throughout the dark cycle following each inhalation exposure (n = 14 - 16/group). Uterine artery ultrasound was performed on GD 15 and 21. Fetal growth characteristics and indicators of placental nutrient status were measured at GD 21. Exposure to ozone + quiet (O + Q) conditions reduced uterine arterial resistance at GD 15 compared to air + quiet (A + Q) exposure, with no further reduction by GD 21. By contrast, exposure to air + noise (A + N) significantly increased uterine arterial resistance at both GD 15 and 21. Notably, while peri-implantation exposure to O + Q conditions reduced male fetal weight at GD 21, this effect was not observed in the air + noise (A + N) or the ozone + noise (O + N) exposure groups. Fetal weight in female offspring was not reduced by ozone exposure alone (O + Q), nor was it affected by air + noise (A + N) or by combined ozone + noise (O + N) exposure. These data indicate that exposure to ozone and noise differentially impact uterine blood flow, particularly at mid-gestation, with only ozone exposure being associated with sex-dependent fetal growth retardation in male offspring.
Publisher: England: BioMed Central
Language: English
Identifier: ISSN: 2042-6410
EISSN: 2042-6410
DOI: 10.1186/s13293-019-0270-6
PMID: 31791410
Source: ProQuest One Psychology
GFMER Free Medical Journals
MEDLINE
PubMed Central
ROAD: Directory of Open Access Scholarly Resources
ProQuest Central
DOAJ Directory of Open Access Journals
Springer Nature OA Free Journals

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Fetal growth outcomes following peri-implantation exposure of Long-Evans rats to noise and ozone differ by sex

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