Narrative review offers qualitative synthesis without reported quantitative outcomes or safety data

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Frontiers in Medicine Published May 19, 2026 Medically reviewed May 19, 2026 Study authors: Chang Li, Baofeng Xu, Rui Liu DOI ↗ By Dr. Ji-eun Park, MD · Brain, Mind & Pain

Key Takeaway

Note qualitative synthesis lacks numerical data and explicit limitations in this narrative review

The source material is a narrative review that synthesizes qualitative arguments rather than presenting primary trial data. The scope of the review covers a topic where the population, setting, and intervention details were not reported in the provided text. Consequently, no specific sample sizes or follow-up durations can be described.

The main synthesized findings rely on qualitative conclusions drawn by the authors. No primary or secondary outcomes were reported with numerical values, and no adverse events or tolerability data were included in the source. The review does not provide pooled effect sizes or confidence intervals.

Limitations acknowledged by the authors regarding the lack of quantitative data are significant. Practice relevance cannot be determined from this source as no specific clinical recommendations or certainty notes were provided. Readers should interpret these qualitative arguments with caution given the absence of numerical grounding.

Study Details

Study typeSystematic review

EvidenceLevel 1

PublishedMay 2026

View Original Abstract ↓

The cerebrovascular endothelium has been reconceptualized from a mere passive barrier to an active regulator of neuroimmune responses. The interaction between immune cells and endothelial cells, particularly at the blood-brain barrier, is pivotal in the context of neuroinflammation and vascular dysfunction associated with various neurological disorders. This comprehensive review synthesizes recent advancements in the molecular and cellular mechanisms that govern this interaction. We investigate how activated endothelial cells interact with immune cells through adhesion pathways, cytokine networks, and metabolic cross-talk, thereby contributing to the pathogenesis of disease. Special attention is given to the influence of vascular aging in exacerbating this dysregulation. Additionally, we assess the translational implications of our findings, including the identification of novel biomarkers, advancements in neuroimaging techniques, and therapeutic strategies aimed at restoring barrier integrity and modulating neuroimmune responses. A comprehensive understanding of the immune-endothelial axis provides a crucial framework for elucidating neurovascular pathophysiology and informing targeted interventions.

Narrative review offers qualitative synthesis without reported quantitative outcomes or safety data

Study Details

Intravenous tenecteplase improves functional outcomes but increases hemorrhage risk in non-large vessel occlusion acute ischemic stroke

Tenecteplase improves stroke recovery but increases bleeding risk in late treatment window

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Narrative review offers qualitative synthesis without reported quantitative outcomes or safety data

Study Details

Intravenous tenecteplase improves functional outcomes but increases hemorrhage risk in non-large vessel occlusion acute ischemic stroke

Tenecteplase improves stroke recovery but increases bleeding risk in late treatment window

Clinical research that matters. Delivered to your inbox.

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