Unknown

Dataset Information

0

Association of Plasma Claudin-5 with Age and Alzheimer Disease.


ABSTRACT: The blood-brain barrier (BBB) plays pivotal roles in synaptic and neuronal functioning by sealing the space between adjacent microvascular endothelial cells. BBB breakdown is present in patients with mild cognitive impairment (MCI) or Alzheimer disease (AD). Claudin-5 (CLDN-5) is a tetra-spanning protein essential for sealing the intercellular space between adjacent endothelial cells in the BBB. In this study, we developed a blood-based assay for CLDN-5 and investigated its diagnostic utility using 100 cognitively normal (control) subjects, 100 patients with MCI, and 100 patients with AD. Plasma CLDN-5 levels were increased in patients with AD (3.08 ng/mL) compared with controls (2.77 ng/mL). Plasma levels of phosphorylated tau (pTau181), a biomarker of pathological tau, were elevated in patients with MCI or AD (2.86 and 4.20 pg/mL, respectively) compared with control subjects (1.81 pg/mL). In patients with MCI or AD, plasma levels of CLDN-5-but not pTau181-decreased with age, suggesting some age-dependent BBB changes in MCI and AD. These findings suggest that plasma CLDN-5 may a potential biochemical marker for the diagnosis of AD.

SUBMITTER: Tachibana K 

PROVIDER: S-EPMC10855409 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

altmetric image

Publications

Association of Plasma Claudin-5 with Age and Alzheimer Disease.

Tachibana Keisuke K   Hirayama Ryuichi R   Sato Naoyuki N   Hattori Kotaro K   Kato Takashi T   Takeda Hiroyuki H   Kondoh Masuo M  

International journal of molecular sciences 20240124 3


The blood-brain barrier (BBB) plays pivotal roles in synaptic and neuronal functioning by sealing the space between adjacent microvascular endothelial cells. BBB breakdown is present in patients with mild cognitive impairment (MCI) or Alzheimer disease (AD). Claudin-5 (CLDN-5) is a tetra-spanning protein essential for sealing the intercellular space between adjacent endothelial cells in the BBB. In this study, we developed a blood-based assay for CLDN-5 and investigated its diagnostic utility us  ...[more]

Similar Datasets

| S-EPMC3090061 | biostudies-literature
| S-EPMC5089525 | biostudies-literature
| S-EPMC5822204 | biostudies-literature
| S-EPMC6583067 | biostudies-literature
| S-EPMC3111021 | biostudies-literature
| S-BSST1631 | biostudies-other
2022-05-08 | E-MTAB-11103 | biostudies-arrayexpress
| S-EPMC2788799 | biostudies-literature
| S-EPMC6707010 | biostudies-literature
| S-EPMC2838501 | biostudies-literature