This study was aimed to test our hypothesis that dopamine synthesized in the neurons of the brain is delivered to the general circulation in rats during prenatal and early postnatal periods, i.e. before the establishment of the blood-brain barrier. Using the high performance liquid chromatography, it was demonstrated that the dopamine concentration and content in the peripheral blood in fetuses and neonatal rats (i.e. before the establishment of the blood-brain barrier) greatly exceeded those in adult rats. Moreover, the establishment of the blood-brain barrier was accompanied by the significant increase of the dopamine concentration in the brain. A drop of the dopamine concentration in fetal plasma after the microsurgical lesion of the forebrain and mesencephalon (encephalectomy) are considered as direct evidence in favour of our hypothesis.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Engineering EVs-Mediated mRNA Delivery Regulates Microglia Function and Alleviates Depressive-Like Behaviors.
Adv Mater
January 2025
Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Jiangsu, 210009, P. R. China.
The development of new non-neurotransmitter drugs is an important supplement to the clinical treatment of major depressive disorder. The latest development of mRNA therapy provides the possibility for the treatment of some major diseases. The endoplasmic reticulum (ER) and mitochondria constitute a highly interconnected set of fundamental organelles within cells.
View Article and Find Full Text PDFXixin Decoction's novel mechanism for alleviating Alzheimer's disease cognitive dysfunction by modulating amyloid-β transport across the blood-brain barrier to reduce neuroinflammation.
Front Pharmacol
January 2025
Key Research Laboratory for Prevention and Treatment of Cerebrospinal diseases, Shaanxi Provincial Administration of Traditional Chinese Medicine, Xianyang, China.
Purpose: Xixin Decoction (XXD) is a classical formula that has been used to effectively treat dementia for over 300 years. Modern clinical studies have demonstrated its significant therapeutic effects in treating Alzheimer's disease (AD) without notable adverse reactions. Nevertheless, the specific mechanisms underlying its efficacy remain to be elucidated.
View Article and Find Full Text PDFMAPPING THE CEREBROSPINAL FLUID PROTEOME IN BIPOLAR DISORDER.
Biol Psychiatry
January 2025
Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Background: Bipolar disorder (BD) is a severe psychiatric condition with unclear etiology and no established biomarkers. Here, we aimed to characterize the cerebrospinal fluid (CSF) proteome in euthymic BD individuals to identify potential protein biomarkers.
Methods: We employed nano-flow liquid chromatography coupled to high-resolution mass spectrometry to quantify over 2,000 CSF proteins in 374 individuals from two independent clinical cohorts (n=164+89 and 66+55 cases and controls, respectively).
Butylphthalide may inhibit blood-brain barrier disruption through complement-related pathways to alleviate cognitive impairment in epileptic mice.
Epilepsy Behav
January 2025
Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China. Electronic address:
Background: Temporal lobe epilepsy is often accompanied by comorbid symptoms such as anxiety, depression, and cognitive dysfunction. Research indicates a close relationship between blood-brain barrier (BBB) impairment and these symptoms. DL-3n-butylphthalide (NBP) has been reported to protect the BBB, but the molecular mechanisms by which NBP protects the BBB in epilepsy models remain unclear.
View Article and Find Full Text PDFExercise preconditioning increases circulating exosome miR-124 expression and alleviates apoptosis in rats with cerebral ischemia-reperfusion injury.
Brain Res
January 2025
The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin 15000, China. Electronic address:
Objectives: Exercise as a non-pharmacological intervention can exert beneficial effects directly through exosomes crossing the blood-brain barrier and reduce apoptosis after cerebral ischaemia/reperfusion injury (CI/RI). miRNA-124 (miR-124) is present in exosomes and plays an important role in regulating cerebral neurological activity; however, the mechanism of the relationship between exercise and the activity of exosomes and apoptosis after CI/RI remains unclear. Therefore, the present study investigated the effects of exercise preconditioning on cerebral ischemia/reperfusion injury from the perspective of exosomal miR-124 and apoptosis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!