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The most critical issue impeding the development of innovative cerebrospinal medications is the blood-brain barrier (BBB). The BBB limits the ability of most medications to penetrate the brain to the CNS. The BBB structure and functions are summarized, with the physical barrier generated by endothelial tight junctions and the transport barrier formed by transporters within the membrane and vesicular processes. The functions of connected cells, particularly the end feet of astrocytic glial cells, microglia, and pericytes, are described. The drugs that cross the blood brain barrier are explained below along with their mechanisms. Some of the associated conditions and problems are given.
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http://dx.doi.org/10.2174/0118715249297247240813104929 | DOI Listing |
Neuro Oncol
September 2025
Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA.
Background: Disruption of the blood-brain barrier (BBB) in high-grade brain tumors is characterized by contrast accumulation on diagnostic imaging. This window of opportunity study correlates contrast imaging features with the tumor distribution of BBB-permeable (levetiracetam) and -impermeable (cefazolin) drugs.
Methods: Patients with a clinical diagnosis of a high-grade brain tumor underwent MRI for surgical planning.
Korean J Anesthesiol
September 2025
Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan 15588, the Republic of Korea.
Background: Despite the well-known effects of elevated bilirubin in neonates, its neurotoxic potential in adults remains uncertain. In perioperative and hepatic disease contexts, transient bilirubin elevations are common; however, their direct contribution to cognitive dysfunction has not been clearly established. This study aimed to determine whether transient bilirubin elevation alone can impair cognition and disrupt blood-brain barrier (BBB) function in adult zebrafish, and to compare these effects with those of liver injury.
View Article and Find Full Text PDFCrit Rev Anal Chem
September 2025
School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India.
Neurodegenerative disorders (NDD) i.e., dementia of the Alzheimer's type, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis are a rising worldwide epidemic driven by aging populations and characterized by progressive neuronal impairment.
View Article and Find Full Text PDFACS Chem Neurosci
September 2025
Institute of Cell Engineering, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21215, United States.
Alzheimer's disease (AD) is a neurodegenerative disease characterized by progressive cognitive impairment and neuronal loss, with pathological hallmarks including Aβ plaque deposition and tau tangles. At present, the early diagnosis and treatment of AD still face great challenges, such as limited diagnostic methods, difficulty in blood-brain barrier (BBB) penetration, complex disease mechanisms, and lack of highly effective targeted therapies. Antibody drugs have shown broad prospects in the field of AD due to their high specificity, engineering and multifunctional therapeutic potential, include targeted Aβ clearance, tau pathological regulation, imaging probes, and blood biomarkers.
View Article and Find Full Text PDFJ Biomed Mater Res B Appl Biomater
September 2025
Contipro a.s., Czech Republic.
Drug delivery to the central nervous system (CNS) is primarily hindered by the blood-brain barrier (BBB). To address this, mucoadhesive formulations have been designed to prolong residence time at the application site. In this study, we comprehensively characterized the physicochemical and mucoadhesive properties of hyaluronic acid tyramine (HATA) photocrosslinked hydrogels using rheological methods, nanoindentation, contact angle goniometry, and advanced confocal microscopy.
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