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Open research questions in Neonatal and fetal brain pathology

394 gap statements mined from Neonatal and fetal brain pathology papers in our 7.9M-paper local library, which holds 1,859 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • It also mentions the difficulty of conducting a systematic review and meta-analysis due to the lack of standardised differential criteria and thresholds. The paper highlights the need for further research to better understand the relationships between glucose imbalance, oxidative stress, and inflammation.

    Beyond Numerical Thresholds: A Systems-Level Perspective on Dysglycaemia and the Liver–Brain Axis in Brain Injury · 2026 · DOI

  • ConclusionsTH was associated with mortality reduction in severe HIE overall and at 36-weeks GA, but this benefit remains uncertain at 35-weeks GA.

    A comparison of mortality for neonates aged 35 versus 36 weeks gestational age with hypoxic-ischemic encephalopathy treated with therapeutic hypothermia in the National Inpatient Sample. · 2026 · DOI

  • Melatonin may represent a promising adjunctive strategy to mitigate oxidative stress-related brain dysmaturation in this vulnerable population, warranting further investigation in larger trials.

    Early Oral Melatonin Supplementation Supports White Matter Maturation in Preterm Infants: Neuroprotective Insights of an Antioxidant Molecule · 2026 · DOI

  • Multimodal MRI can provide a useful noninvasive approach for monitoring treatment-related changes in white matter injury and development, supporting further investigation of Mel as a potential therapeutic strategy for PWMI.

    MRI Visualization of Melatonin‐Promoted Oligodendrogenesis and Its Neuroprotective Effects in Preterm White Matter Injury Rat Model · 2026 · DOI

  • Melatonin (Mel), a neuroendocrine hormone with anti-inflammatory and antioxidant properties, has shown neuroprotective potential in neonatal brain injury, although the mechanisms underlying its effects in PWMI remain incompletely understood.

    MRI Visualization of Melatonin‐Promoted Oligodendrogenesis and Its Neuroprotective Effects in Preterm White Matter Injury Rat Model · 2026 · DOI

  • Although hypoxic injury and metabolic dysregulation are well characterized individually, their interplay in CP and the potential role of metabolic modulators remain poorly understood.

    Neonatal high-dose riboflavin attenuates abdominal adiposity and binge eating associated with adipose metabolic remodeling in experimental cerebral palsy · 2026 · DOI

  • While the quality of healthcare for children with CP has formidably improved, the full etiology of the disease has not yet been fully uncovered, and a biological signature of the disease remains incompletely characterized.

    Risk factors and blood biomarker profiles of children diagnosed with cerebral palsy in a Danish cohort of preterm newborns · 2026 · DOI

  • Appropriate neurodevelopmental assessment tools are often unavailable in low- and middle-income countries (LMICs) due to lack of validation, cost and cultural-linguistic challenges.

    Validation of neurodevelopmental assessments for early detection of high-risk infants in Zimbabwe: protocol for the Child Development Observation study (ChiDO study) · 2026 · DOI

  • Neonatal hypoxic-ischemic encephalopathy (HIE) causes severe neurodevelopmental impairment, but the upstream immune mechanisms that initiate this process remain unclear.

    Mast Cell–Microglia Crosstalk Drives Aberrant Synaptic Pruning Through PAR ‐2/ MAPK / NF ‐ κB Signaling in Neonatal Hypoxic–Ischemic Encephalopathy · 2026 · DOI

  • This area remains under-investigated, and the evidence can be difficult to navigate.

    The role of social determinants of health in the developing injured brain · 2025 · DOI

  • Massage is kown to effectively alleviate symptoms of Cerebral Palsy (CP), yet its specific mechanism in CP remains unclear.

    White matter injury in young rats with cerebral palsy: the role of massage in regulating exosomes via the chemokine axis · 2025 · DOI

  • Perillyl alcohol (POH), a natural monoterpene found in various plant essential oils, has shown neuroprotective properties, though its effects on HIE are not well understood.

    Activation of the Nrf2/Keap1 signaling pathway mediates the neuroprotective effect of Perillyl alcohol against cerebral hypoxic-ischemic damage in neonatal rats · 2024 · DOI

  • Neonatal hypoxic-ischemic encephalopathy (HIE) is a severe disease with a poor prognosis, whose clinical treatment is still limited to therapeutic hypothermia with limited efficacy.

    Activation of the Nrf2/Keap1 signaling pathway mediates the neuroprotective effect of Perillyl alcohol against cerebral hypoxic-ischemic damage in neonatal rats · 2024 · DOI

  • Several studies reported an association between early postnatal red blood cell (RBC) transfusion and IVH, however the timing and causality between these two remains unclear.

    Early red blood cell transfusion and the occurrence of intraventricular hemorrhage in very preterm infants · 2024 · DOI

  • However, the relationship between PPAR-γ and microglial polarization in neonatal WMI is not well understood.

    The Neuroprotective Mechanisms of PPAR ‐γ: Inhibition of Microglia‐Mediated Neuroinflammation and Oxidative Stress in a Neonatal Mouse Model of Hypoxic‐Ischemic White Matter Injury · 2024 · DOI

  • Variability in CTG interpretation remains a significant limitation affecting its clinical utility. Comparative analyses with adjunctive techniques, such as fetal electrocardiogram (ECG) ST-segment waveform analysis, have yielded inconsistent findings, with no clear evidence of superiority in improving neonatal health outcomes.

    Admission Cardiotocography in Term Pregnancies for Predicting Intrapartum Interventions and Early Neonatal Outcomes: A Systematic Review · 2026 · DOI

  • The review is limited to studies published in the English language. The search strategy may not have identified all relevant studies. The review is a scoping review, which aims to identify and summarize the current literature, rather than a systematic review, which aims to provide a comprehensive and exhaustive summary.

    Microvascular ultrasound imaging of the neonatal brain: a scoping review · 2026 · DOI

  • There is a need for standardised protocols and normative datasets for advanced ultrasound techniques in neonatal brain imaging. There is a lack of longitudinal outcome linkage and diagnostic effectiveness studies for these techniques.

    Microvascular ultrasound imaging of the neonatal brain: a scoping review · 2026 · DOI

  • The issues of hypoxic-ischemic encephalopathy remain relevant. There is a need to study the diagnosis and clinical consequences of perinatal lesions of the central nervous system.

    CLINICAL CHARACTERISTICS OF HYPOXIC-ISCHEMIC ENCEPHALOPATHY IN NEWBORNS · 2026 · DOI

  • Future studies should investigate what parenting, family functioning and social characteristics of high-SES families are associated with outcomes in PTB, as these may be important targets for intervention. Despite a large body of literature reporting that higher SES is associated with improved brain and behavioral development in PTB, little is known about the characteristics of the high SES environment.

    The intersection of neuroscience, socioeconomic status, and preterm birth · 2026 · DOI

  • Deep learning models have poor representation ability on tabular data.

    Fetal health state detection method based on parameters efficient ensembling of deep learning · 2026 · DOI

  • Perinatal lesions of the nervous system can lead to disability in children. Brain lesions during the perinatal period play a leading role in further dysadaptation and disability in children.

    CLINICAL CHARACTERISTICS OF HYPOXIC-ISCHEMIC ENCEPHALOPATHY IN NEWBORNS · 2026 · DOI

  • The Apgar score has limited predictive value for long-term neurological outcomes. It may be influenced by several factors, including prematurity and maternal medications. The score was not originally designed to predict long-term neurological outcomes.

    Apgar Score: Utility, limitations, and clinical implications in neonatal practice · 2026 · DOI

  • A systematic review and meta-analysis could be conducted once standardised differential criteria and thresholds are consensually defined, - A leave-one-out or multivariate meta-analysis could be…

    Beyond Numerical Thresholds: A Systems-Level Perspective on Dysglycaemia and the Liver–Brain Axis in Brain Injury · 2026 · DOI

  • Using an asynchronous consensus exercise conducted over email, the advisory group and the patient/family representatives shaped and agreed a set of 15 recommendations (Table 4 and Supplement 5).

    Improving UK data on avoidable perinatal brain injury: consultations and co-creation of recommendations · 2026 · DOI

Most-cited papers in Neonatal and fetal brain pathology

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Open questions raised by papers listed on this page include: (1) It also mentions the difficulty of conducting a systematic review and meta-analysis due to the lack of standardised differential criteria and thresholds (“Beyond Numerical Thresholds: A Systems-Level Perspective on Dysglycaemia and…”, 2026); (2) Although hypoxic injury and metabolic dysregulation are well characterized individually, their interplay in CP and the potential role of metabolic modulators remain poorly understood (“Neonatal high-dose riboflavin attenuates abdominal adiposity and binge eating…”, 2026); (3) While the quality of healthcare for children with CP has formidably improved, the full etiology of the disease has not yet been fully uncovered, and a biological signature of the disease remains incompletely characterized (“Risk factors and blood biomarker profiles of children diagnosed with cerebral…”, 2026); (4) Appropriate neurodevelopmental assessment tools are often unavailable in low- and middle-income countries (LMICs) due to lack of validation, cost and cultural-linguistic challenges (“Validation of neurodevelopmental assessments for early detection of high-risk…”, 2026); (5) Neonatal hypoxic-ischemic encephalopathy (HIE) causes severe neurodevelopmental impairment, but the upstream immune mechanisms that initiate this process remain unclear (“Mast Cell–Microglia Crosstalk Drives Aberrant Synaptic Pruning Through PAR ‐2/…”, 2026). 394 gap statements have been mined from Neonatal and fetal brain pathology papers in our 7.9M-paper local library, which holds 1,859 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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