ReviewNeurotoxicity research2024
Blunted Melatonin Circadian Rhythm in Parkinson's Disease: Express Bewilderment.
Review in Neurotoxicity research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Mendelian randomization analysis reveals causal links between specific immune cell phenotypes and Parkinson's disease.Clinics (Sao Paulo, Brazil) · 2026Article
- The sleep-wake cycle: molecular mechanisms, disorders, and therapeutic targets in the context of energy metabolism.Signal transduction and targeted therapy · 2026Review
- Bidirectional Mechanisms Linking Circadian Rhythm Disruption and Parkinson's Disease: Chronobiomarkers and Therapeutic Implications.International journal of molecular sciences · 2026Review
- Time vortex: the circadian-dopaminergic dialogue in Parkinson's disease.NPJ Parkinson's disease · 2026Review
- Repurposing of doxycycline as a novel therapeutic avenue for management of parkinson's disease.Inflammopharmacology · 2026Review
- Melatonin Amplitude, but Not Phase, Is Associated with Sleep Efficiency in the Arctic.Bulletin of experimental biology and medicine · 2026Article
- Randomized, double-blind, placebo-controlled pilot study of metformin as an adjunctive therapy in Parkinson's disease.Frontiers in pharmacology · 2025Article
- Lead Phytomolecules for Treating Parkinson's Disease.Central nervous system agents in medicinal chemistry · 2025Review
- Interplay of oxidative stress and Inflammasome activation and clinical indices in Parkinson's disease: insights from serum SIRT1, Nrf2, and NLRP3 levels and PDQ-39-a cross-sectional study.Frontiers in neuroscience · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Melatonin (MTN) is a neuro-hormone released from the pineal gland. MTN secretion is regulated by different neuronal circuits, including the retinohypothalamic tract and suprachiasmatic nucleus (SCN), which are affected by light. MTN is neuroprotective in various neurodegenerative diseases, including Parkinson's disease (PD). MTN circulating level is highly blunted in PD. However, the underlying causes were not fully clarified. Thus, the present review aims to discuss the potential causes of blunted MTN levels in PD. Distortion of MTN circadian rhythmicity in PD patients causies extreme daytime sleepiness. The underlying mechanism for blunted MTN response may be due to reduction for light exposure, impairment of retinal light transmission, degeneration of circadian pacemaker and dysautonomia. In conclusion, degeneration of SCN and associated neurodegeneration together with neuroinflammation and activation of NF-κB and NLRP3 inflammasome, induce dysregulation of MTN secretion. Therefore, low serum MTN level reflects PD severity and could be potential biomarkers. Preclinical and clinical studies are suggested to clarify the underlying causes of low MTN in PD.
Indexed as
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.