ArticleMolecules (Basel, Switzerland)2025
Astaxanthin Mitigates ADHD Symptoms in Spontaneously Hypertensive Rats via Dopaminergic Modulation and Brain-Gut Axis Regulation.
Article in Molecules (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Molecular mechanisms and therapeutic potential of natural products and traditional Chinese medicine formulas in ADHD: a review of preclinical evidence.Frontiers in pharmacology · 2026Review
- Effect of Sacubitril/Valsartan, Ivabradine, and Captopril on Anxiety-like Behavior in Spontaneously Hypertensive Rats.International journal of molecular sciences · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
Attention Deficit Hyperactivity Disorder (ADHD) is a prevalent neurodevelopmental disorder that significantly impacts learning, daily functioning, and personal development. Astaxanthin (ASTA), a naturally occurring antioxidant, has garnered interest as a potential therapeutic agent for various diseases, particularly in mitigating oxidative stress. This study explores a novel application of ASTA in the context of ADHD, aiming to investigate its therapeutic effects and underlying mechanisms. Spontaneously hypertensive rats (SHRs), widely used ADHD model animals, were treated with ASTA (50/100 mg/kg/day) for three weeks, 5 mg/kg/day atomoxetine (ATO) as the positive, and Wistar Kyoto (WKY) rats as control. Behavioral improvements were assessed using the open field test (OFT) and the Morris water maze (MWM). Biochemical analyses were conducted to evaluate changes in the levels of various neurotrophic factors, while histological examinations were performed to assess neuroprotective effects. Additionally, the role of ASTA in the brain-gut axis was investigated. The behavioral symptoms of hyperactivity, anxiety, and impaired spatial memory in ADHD animals were mitigated by ASTA. This improvement is primarily attributed to the restoration of neurotransmitter levels, particularly dopamine (DA), achieved through the modulation of several critical components within the dopamine system, including dopamine receptor 1 (DR1), dopamine transporter (DAT), tyrosine hydroxylase (TH), and synaptic-associated protein 25 (SNAP-25). Additionally, regulating the serotonin transporter (SERT) and glial cell-derived neurotrophic factor (GDNF) supports the recovery of serotonin levels and facilitates optimal brain development. Furthermore, cerebellar cells were protected, and the structure of the intestinal microbiota was regulated. ASTA can mitigate ADHD symptoms in SHR through the modulation of the dopaminergic system, multiple neurotransmitters, neurotrophic factors, and the neuro-intestinal environment, which establishes ASTA as a promising nutraceutical candidate for adjunctive therapy in pediatric ADHD.
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Registered trials
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