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Updated: Mar 22, 2026
A Piglet Model of Neonatal Hypoxic-Ischemic Encephalopathy
Published on: May 16, 2015
From maternal nutrition to neonatal neuroprotection: Passion fruit stilbenes in hypoxia-ischemia
Pierre Goudeneche1, Ifrah Omar Ibrahim1, Marie-Christine Beauvieux2
1Univ. Bordeaux, CNRS, CRMSB, UMR 5536, Bordeaux F-33000, France.
Insights
Maternal passion fruit extract supplementation protects newborns from brain injury caused by hypoxia-ischemia (HI). This approach, combined with therapeutic hypothermia, offers enhanced neuroprotection and improved outcomes.
Area of Science:
- Neuroscience
- Perinatal Medicine
- Pharmacology
Background:
- Neonatal hypoxia-ischemia (HI) is a leading cause of infant brain damage and long-term neurological issues.
- Current therapeutic hypothermia (TH) offers limited protection and has a narrow therapeutic window.
- Preventive neuroprotective strategies are crucial for improving outcomes in neonatal HI.
Purpose of the Study:
- To evaluate the neuroprotective effects of maternal passion fruit extract supplementation in a rat model of neonatal HI.
- To assess the compatibility and combined efficacy of passion fruit extract with post-HI therapeutic hypothermia.
- To investigate the impact on brain injury, oxidative stress, inflammation, and behavioral outcomes.
Main Methods:
- Pregnant rats received passion fruit extract during late gestation and early lactation.
- Neonatal HI was induced at postnatal day 7, followed by therapeutic hypothermia in select groups.
- Brain injury was assessed via MRI and histology; behavioral outcomes were evaluated up to 50 days post-birth.
Main Results:
- Maternal passion fruit extract significantly reduced brain lesion volumes and attenuated oxidative and inflammatory markers.
- Supplementation improved sensorimotor and cognitive performance in offspring exposed to HI.
- Combining passion fruit extract with hypothermia enhanced structural protection, with extract alone sometimes showing superior behavioral benefits.
Conclusions:
- Maternal passion fruit extract provides robust neuroprotection against neonatal HI and is compatible with therapeutic hypothermia.
- The combined approach offers enhanced outcomes, representing a scalable, low-risk, and cost-effective adjunct strategy.
- This strategy holds promise for improving the long-term neurological health of infants affected by HI.
Background:
Neonatal hypoxia-ischemia (HI) remains a major cause of perinatal morbidity and mortality, leading to lifelong neurological sequelae. Therapeutic hypothermia is the current standard of care but provides only partial protection and must be applied within a narrow therapeutic window. Complementary or preventive neuroprotective strategies are therefore needed. Maternal supplementation with plant-derived polyphenols has shown promising effects in reducing oxidative stress, neuroinflammation, and neuronal loss in experimental models of neonatal HI. Passion fruit extract, rich in stilbenes such as piceatannol, represents a potential neuroprotective candidate, yet its compatibility with post-HI hypothermia has not been systematically evaluated.
Methods:
Pregnant rats received oral supplementation with a passion fruit extract of defined polyphenolic composition during the last week of gestation and the first week of lactation. Neonatal HI was induced at postnatal day 7, followed by therapeutic hypothermia (2 h, 32 °C) in selected groups. All experimental groups were compared versus sham (controls) group. Brain injury was assessed using MRI and histology, while behavioral outcomes were evaluated from the neonatal to juvenile period (50 days old).
Results:
Maternal supplementation with passion fruit extract significantly reduced lesion volumes, attenuated oxidative and inflammatory markers, and improved sensorimotor and cognitive performance. When combined with hypothermia, structural protection was further enhanced, although passion fruit extract alone sometimes provided superior benefit in specific behavioral tests, suggesting possible overlapping or modulatory mechanisms.
Conclusion:
Maternal supplementation with passion fruit extract offers robust neuroprotection against neonatal HI and is compatible with post-HI therapeutic hypothermia. This combined preventive and therapeutic approach may represent a scalable, low-risk, and cost-effective adjunct strategy to enhance outcomes in neonatal HI.
