Research Article
Treadmill Exercise during Pregnancy Decreased Vulnerability to
Neonatal Hypoxia-Ischemia through Reducing Inflammation and
Increasing Antiapoptotic Gene Expressions and Antioxidant
Capacity in Rats
Elahe Gorgij ,
1
Hamed Fanaei ,
2,3
Parichehr Yaghmaei ,
1
Mohammad Reza Shahraki ,
3
and Hadi Mirahmadi
4
1
Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
2
Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
3
Department of Physiology, Zahedan University of Medical Sciences, Zahedan, Iran
4
Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
Correspondence should be addressed to Hamed Fanaei; fanaeih@yahoo.com
Received 6 January 2021; Revised 18 March 2021; Accepted 31 March 2021; Published 14 April 2021
Academic Editor: Taskin Duman
Copyright © 2021 Elahe Gorgij et al. This is an open access article distributed under the Creative Commons Attribution License,
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Background. The purpose of present study was to assess the impact of maternal treadmill exercise during pregnancy on
inflammation, oxidative stress, expression of Bax and Bcl-2 genes, and brain-derived neurotrophic factor (BDNF) level in
neonatal rat brain after the hypoxia-ischemia injury. Material and Methods. A total of 24 female Wistar rats were utilized in this
research. Two groups are randomly considered for rats: (1) not exercised through pregnancy and (2) exercised during
pregnancy. Offsprings were divided into four groups including after delivery: (1) sham, (2) sham/exercise (sham/EX), (3) HI,
and (4) HI+exercise. HI was induced in pups at postnatal day 8. Neurobehavioral tests were done seven days after HI induction.
Then, the brain tissue was taken from the skull to estimate Bcl-2 and Bax gene expressions, BDNF, cerebral edema, infarct
volume, inflammatory factors, oxidative stress, and neurological function. Results. The BDNF level in the HI+exercise group was
considerably higher than the HI, sham, and sham/EX groups. Tumor necrosis factor (TNF-α), C-reactive protein (CRP), and the
whole oxidant capacity (TOC) levels in the HI group were significantly higher than the sham and sham/EX groups. TNF-α,
CRP, and TOC levels in the HI+exercise group were significantly lower than the HI group. Total antioxidant capacity (TAC)
level in the HI+exercise group was significantly higher than the HI group. Infarct volume and edema percent in the HI+exercise
group were significantly lower than the HI group. Neurological function in the HI+exercise group was significantly better than
the HI group. Bax expression in the HI+exercise group was significantly lower than the HI group. Bcl-2 expression in the HI
+exercise group was significantly higher than the HI group. In the sham group, BDNF, TNF-α, CRP, TAC, TOC, edema levels,
and neurological function had no significant difference with the sham/EX group. Conclusion. It appears that the maternal
treadmill exercise during pregnancy exerts a supportive impact against neonatal HI brain injury through increasing antioxidant
capacity, Bcl-2 expression, and BDNF levels and decreasing inflammation that is resulted in the lower infarct volume and
sensorimotor dysfunction.
1. Introduction
In cardiovascular, metabolic, endocrine, and musculoskeletal
systems of the mother and external elements like nutritional
intake, emotional support, and environmental situations,
pregnancy induces complex biological modifications that
have a significant role to modulate intrauterine milieu and
ongoing fetal development [1]. The mother’s condition dur-
ing pregnancy has profound effects on how the fetus grows
and develops. Changes in the health of the pregnant mother
can affect the condition of important organs of the fetus, such
as the cardiovascular organs and the nervous system [1].
Hindawi
Stroke Research and Treatment
Volume 2021, Article ID 5512745, 10 pages
https://doi.org/10.1155/2021/5512745