ArticleJournal of neuroscience methods2015
Methodology and effects of repeated intranasal delivery of DNSP-11 in a rat model of Parkinson's disease.
Article in Journal of neuroscience methods, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
8 citing papers in PubMed, 22 citations in OpenAlex.
- Peptides Targeting GDNF Family Receptor Alpha 1 (GFRα1) Mimic Glial Cell Line-Derived Neurotrophic Factor (GDNF) Bioactivity.Journal of medicinal chemistry · 2026Article
- Research progress on intranasal treatment for Parkinson's disease.Neuroprotection (Chichester, England) · 2024Review
- Novel Hominid-Specific IAPP Isoforms: Potential Biomarkers of Early Alzheimer's Disease and Inhibitors of Amyloid Formation.Biomolecules · 2023Article
- Is activation of GDNF/RET signaling the answer for successful treatment of Parkinson's disease? A discussion of data from the culture dish to the clinic.Neural regeneration research · 2022Review
- Small Molecules and Peptides Targeting Glial Cell Line-Derived Neurotrophic Factor Receptors for the Treatment of Neurodegeneration.International journal of molecular sciences · 2020Review
- Spatial and temporal immunoreactivity in the rat brain using an affinity purified polyclonal antibody to DNSP-11.Journal of chemical neuroanatomy · 2019Article
- Intranasal Erythropoietin Protects CA1 Hippocampal Cells, Modulated by Specific Time Pattern Molecular Changes After Ischemic Damage in Rats.Journal of molecular neuroscience : MN · 2019Article
- Methodology and effects of repeated intranasal delivery of DNSP-11 in awake Rhesus macaques.Journal of neuroscience methods · 2018Article
Corrections and comments
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
Abstract
backgroundTo circumvent the challenges associated with delivering large compounds directly to the brain for the treatment of Parkinson's disease (PD), non-invasive procedures utilizing smaller molecules with protective and/or restorative actions on dopaminergic neurons are needed. NEW
methodWe developed a methodology for evaluating the effects of a synthetic neuroactive peptide, DNSP-11, on the nigrostriatal system using repeated intranasal delivery in both normal and a unilateral 6-hydroxydopamine (6-OHDA) lesion rat model of PD.
resultsNormal rats repeatedly administered varying doses of DNSP-11 intranasally for 3 weeks exhibited a significant increase in dopamine (DA) turnover in both the striatum and substantia nigra (SN) at 300μg, suggestive of a stimulative effect of the dopaminergic system. Additionally, a protective effect was observed following repeated intranasal administration in 6-OHDA lesioned rats, as suggested by: a significant decrease in d-amphetamine-induced rotation at 2 weeks; a decrease in DA turnover in the lesioned striatum; and an increased sparing of tyrosine hydroxylase (TH) positive (+) neurons in a specific sub-region of the lesioned substantia nigra pars compacta (SNpc). Finally, tracer studies showed (125)I-DNSP-11 distributed diffusely throughout the brain, including the striatum and SN, as quickly as 30min after a single intranasal dose. COMPARISON WITH EXISTING
methodsThe results of bilateral intranasal administration of DNSP-11 are compared to our unilateral single infusion studies to the brain in rats.
conclusionsThese studies support that DNSP-11 can be delivered intranasally and maintain its neuroactive properties in both normal rats and in a unilateral 6-OHDA rat model of PD.
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