Effects of Crocin on 6-OHDA-Induced Hemiparkinsonian Rats
Journal name: The Malaysian Journal of Medical Sciences
Original article title: The Effects of Crocin on 6-OHDA-Induced Oxidative/Nitrosative Damage and Motor Behaviour in Hemiparkinsonian Rats
The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access journal published online at least six times a year. It covers all aspects of medical sciences and prioritizes high-quality research.
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Maryam Hosseini, Ziba Rajaei, Hojjatallah Alaei, Mohamadhasan Tajadini
The Malaysian Journal of Medical Sciences:
(A peer-reviewed, open-access journal)
Full text available for: The Effects of Crocin on 6-OHDA-Induced Oxidative/Nitrosative Damage and Motor Behaviour in Hemiparkinsonian Rats
Year: 2016 | Doi: 10.21315/mjms2016.23.6.4
Copyright (license): CC BY 4.0
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Summary of article contents:
Introduction
Parkinson’s disease (PD) is a neurodegenerative disorder characterized by the degeneration of dopaminergic neurons in the substantia nigra, leading to motor deficits. Factors such as oxidative and nitrosative stress have been implicated in the pathology of PD. The study aimed to evaluate the effects of crocin, a compound known for its antioxidant properties found in saffron, on motor behavior and oxidative/nitrosative damage induced by 6-hydroxydopamine (6-OHDA) in a rat model of PD.
Crocin’s Impact on Oxidative Stress
The research found that crocin administration (at doses of 30 and 60 mg/kg) over six weeks did not significantly alleviate the contralateral rotations induced by apomorphine in 6-OHDA-lesioned rats, indicating persistent motor deficits. Although crocin did not reduce lipid peroxidation levels, as evidenced by elevated TBARS in the striatum, it did lead to a significant reduction in tissue nitrite levels at the higher dose, suggesting a protective effect against nitrosative damage. This highlights the potential of crocin in mitigating nitrosative stress in neurodegenerative conditions, despite its ineffectiveness in reversing certain oxidative stress markers in this model.
Conclusion
In conclusion, the study demonstrated that chronic treatment with crocin could effectively prevent nitrosative stress in the striatum in a 6-OHDA-induced model of Parkinson’s disease. However, it had no significant effect on oxidative stress indicators or motor impairments. These findings underscore the complex nature of neurodegenerative mechanisms in PD, suggesting that different pathways of stress contribute to its pathogenesis. Further investigations on higher doses of crocin and its potential synergies with other treatments are warranted to fully elucidate its neuroprotective effects in PD.
FAQ section (important questions/answers):
What are the effects of crocin in Parkinson's disease?
Crocin may help prevent nitrosative damage in the striatum, potentially providing neuroprotective effects. However, it does not significantly reduce motor deficits or oxidative stress associated with Parkinson's disease.
How was crocin administered in the study?
In the study, crocin was injected intraperitoneally at doses of 30 and 60 mg/kg three days before surgery and continued for six weeks in a rat model of Parkinson's disease.
What was the primary method for evaluating motor behavior?
Motor behavior was evaluated using apomorphine-induced rotational behavior in 6-OHDA-lesioned rats, which assessed the degree of dopaminergic neuronal damage in the striatum.
What were the findings regarding oxidative stress levels?
The study found that while crocin did not reduce elevated TBARS levels indicating oxidative stress, it significantly decreased nitrite levels, highlighting its potential effect on nitrosative stress.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Effects of Crocin on 6-OHDA-Induced Hemiparkinsonian Rats�. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Disease:
Disease refers to a deviation from normal physiological function, impacting health. In the context of this study, Parkinson's disease is central, characterized by motor dysfunction and degeneration of neurons, highlighting the need for effective treatments to mitigate symptoms and address underlying causes such as oxidative and nitrosative stress.
2) Sam (Sham):
In scientific research, a sham refers to a control group that undergoes the same procedures as experimental subjects but does not receive the actual treatment. This comparison is crucial to validate findings, particularly in studies exploring the effectiveness of interventions in models of diseases like Parkinson's.
3) Activity:
Activity within the study context refers to the behavioral responses assessed, particularly motor functions in animal models. Measuring activity levels post-intervention helps researchers determine the efficacy of treatments, such as crocin, in mitigating symptoms associated with conditions like Parkinson's disease and overall neuroprotection.
4) Study (Studying):
Study refers to the scientific investigation conducted to assess the therapeutic effects of crocin on motor behavior and oxidative damage in a Parkinson's disease model. It emphasizes the systematic approach to contribute to understanding the potential for crocin as a neuroprotective agent and its implications for future therapies.
5) Animal:
Animal refers to the model organisms, specifically male Wistar rats, utilized in the study. These models are crucial for biomedical research, allowing the assessment of disease mechanisms and the evaluation of potential therapeutic interventions in a living system before proceeding to human clinical trials.
6) Death:
Death in this context pertains to the neurodegeneration associated with Parkinson's disease, highlighting the loss of dopaminergic neurons and its implications for motor function. Understanding the mechanisms leading to neuronal death is essential in developing effective treatments to slow disease progression and enhance quality of life.
7) Table:
Table generally refers to a systematic presentation of data compiled during research. Tables are essential for summarizing findings, such as biochemical analysis results or behavioral assessments, making complex data accessible and interpretable for readers, facilitating comparisons, and supporting conclusions drawn regarding treatment efficacy.
8) Post:
Post specifies the temporal context after specific interventions, such as post-surgery or post-treatment assessments. Evaluating outcomes after treatment provides insights into the effectiveness of pharmacological agents like crocin, aiding in understanding the drug's potential benefits in mitigating the effects of conditions such as Parkinson's disease.
9) Sharman (Sarma, Sharma, Sarman):
Sharma signifies a named author, particularly in studies related to neurodegeneration and treatment evaluations. Identifying contributing researchers emphasizes the collaboration within the scientific community and contributes to the legitimacy of the research findings regarding crocin's potential effects in topics such as oxidative stress.
10) Gupta:
Gupta is another author associated with the study discussing the effects of crocin and other pharmacological treatments. Author contributions are essential for academic recognition and accountability, reinforcing the validation of research methodologies and findings concerning interventions for neurodegenerative diseases.
11) Food:
Food generally refers to dietary components which can influence health and disease outcomes. In the context of this study, it may relate to how dietary substances, including crocin derived from saffron (Crocus sativus), impact neuroprotection and the pathophysiology of conditions like Parkinson's disease.
12) Pharmacological:
Pharmacological pertains to drugs and their effects on biological systems. This study investigates the pharmacological properties of crocin, assessing its potential as a therapeutic agent for Parkinson's disease, particularly regarding its antioxidant and neuroprotective properties against oxidative and nitrosative stress in neuronal tissues.
13) Crocus sativus:
Crocus sativus, or saffron, is the plant from which crocin, the compound studied, is derived. It is known for its pharmacological properties, including antioxidant effects. Saffron's constituents represent a vital area of research for potential therapeutic applications in neurodegenerative diseases like Parkinson's due to their neuroprotective effects.
14) Inflammation:
Inflammation refers to the body's immune response, which can contribute to neurodegenerative processes in diseases like Parkinson's. The study's focus on crocin includes exploring its anti-inflammatory properties and assessing how these effects may mitigate neuronal damage caused by oxidative and nitrosative stress in the striatum.
15) Srivastava (Sri-vastava, Shrivastava, Shri-vastava):
Srivastava typically refers to a researcher whose contributions are documented in scientific literature. Identifying authors such as Srivastava highlights collaborative efforts in researching neurodegeneration and therapeutic agents, fostering credibility in findings related to interventions for conditions like Parkinson's disease through shared knowledge.
16) Substance:
Substance indicates the active chemicals or compounds explored in research. In this case, substances like crocin are examined for their neuroprotective properties. Identifying these substances is essential for understanding the potential effects of various treatments on conditions affecting the nervous system, particularly oxidative stress-related diseases.
17) Species:
Species refers to distinct biological classifications, in this case, particularly focused on the animal model used in the study. Research based on specific species is crucial for understanding the physiological and behavioral responses relevant to human conditions, facilitating the translation of findings into potential therapeutic applications.
18) Science (Scientific):
Science encompasses the systematic study aimed at understanding natural phenomena, including health and disease. The relevance of scientific inquiry in this study is evident in the exploration of crocin's therapeutic potential; it underpins the methodologies and analyses that lead to evidence-based conclusions regarding treatment for Parkinson's disease.
19) Vimala:
Vimala identifies an author involved in the study, representing collaborative research efforts. Attribution of authors lends credibility and emphasizes the interdisciplinary contributions necessary for advancing understanding of therapeutic interventions, such as crocin, in the context of neurodegenerative diseases like Parkinson's.
20) Mishra (Misra):
Mishra typically denotes a contributor to the scientific research documented. Authors' involvement underscores teamwork and knowledge synthesis required for validating findings and enhancing the understanding of the effects of treatments such as crocin on brain health and related neurodegenerative disorders.
21) Shukla (Sukla):
Shukla is another author listed as part of the research team focused on pharmacological interventions and neurodegenerative diseases. Naming authors like Shukla emphasizes collaborative contributions in the scientific community, reinforcing the collective efforts necessary for expanding research on restorative therapies for conditions such as Parkinson's.
22) Kumar:
Kumar is mentioned as an author, reinforcing the collaborative nature of research in pharmacology, especially focusing on treatments that address oxidative stress in diseases like Parkinson's. Author representation highlights the diversity of expertise that enhances credibility and authority in scientific discussions of data.
23) Patel:
Patel identifies another author contributing to the research on neuroprotective substances, emphasizing the collective work in exploring effective treatments. The inclusion of diverse author backgrounds broadens the study's insights and furthers the advancement of understanding regarding therapeutic options for conditions like Parkinson's disease.
24) Water:
Water is a fundamental solvent in biological systems and research protocols. In pharmacological studies, it often serves as a medium for drug formulations and biological assays. The role of water is crucial for proper experimental conditions, influencing the stability and activity of the compounds being tested, such as crocin.
25) Drug:
Drug denotes compounds used in the study, particularly focusing on their therapeutic effects in treating diseases. In this context, crocin is examined for its potential as a neuroprotective agent against Parkinson's disease, showcasing the emphasis on drug efficacy and safety in experimental models.
26) Rati:
Radi refers to an author associated with scientific research, underscoring the collaborative efforts in exploring pharmacological agents. Author attributions enhance the integrity of the research, vital for establishing trust and accountability for findings related to interventions in neurodegenerative diseases.
27) Qian:
Qian is likely another author whose contributions inform the research outcomes. Including various scientists' names emphasizes the multidisciplinary approach in pharmacological studies, particularly in assessing compounds like crocin for therapeutic application in conditions such as Parkinson's disease.
28) Life:
Life signifies the dynamic processes and biological systems investigated in studies. The research assesses how treatments can enhance life quality in individuals affected by neurodegenerative disorders like Parkinson's. Exploring compounds for their beneficial effects can lead to advancements in managing such diseases effectively.
29) Accumulation (Accumulating, Accumulate):
Accumulation refers to the build-up of harmful substances, such as reactive oxygen species (ROS), which can lead to cellular damage and neurodegeneration in the context of Parkinson's disease. Understanding how crocin might mitigate this accumulation helps elucidate potential therapeutic pathways and protective mechanisms against oxidative damage.
30) Observation:
Observation is a vital research component involving the careful monitoring of experimental outcomes, such as behavioral changes in animal models post-treatment. Systematic observation ensures data integrity and supports conclusions drawn about the effectiveness of pharmacological agents like crocin in alleviating symptoms of Parkinson's disease.
31) Discussion:
Discussion pertains to the exposition and interpretation of research findings, allowing for an analysis of the results derived from experiments. A strong discussion context facilitates the contextualization of the study, drawing comparisons with existing literature and highlighting implications for further research and clinical applications.
32) Container:
Container signifies the physical environment, such as a plexiglass chamber utilized during observational studies to assess animal behaviors. Ensuring appropriate conditions within the container is critical for reducing external stimuli, which may influence the measured behaviors in models exploring treatments for neurodegenerative conditions.
33) Observing:
Observing refers to the actions taken by researchers to monitor and analyze behaviors or reactions in experimental subjects. This critical step in scientific research generates the data required to draw meaningful conclusions regarding treatment efficacy, effectiveness, and behavioral changes associated with interventions in disease models.
34) Toxicity:
Toxicity indicates the degree to which a substance can harm organisms. The study assesses the neurotoxic effects of 6-OHDA, which induces symptoms of Parkinson's in rats. Understanding toxicity profiles is vital for developing safe therapeutic interventions, ensuring that treatments minimize adverse effects while providing benefits.
35) Incision:
Incision refers to the surgical procedure performed during the study to induce lesions in the brain, simulating Parkinson's disease. Detailed descriptions of incisions are necessary for replicating studies, ensuring proper methodologies are followed that contribute to the accuracy and reliability of the research outcomes.
36) Nature:
Nature represents the biological and environmental context of the study. It underscores the importance of understanding natural processes affecting health and disease, particularly when investigating the effects of compounds like crocin in transforming or restoring physiological functions altered by neurodegenerative conditions.
37) Reason:
Reason encompasses the rationale behind conducting the study, which is to explore the potential benefits of crocin in mitigating oxidative and nitrosative stress in Parkinson's disease models. Clearly-defined reasons for research guide experimental design and support the relevance of the findings to broader therapeutic advancements.
38) Diet:
Diet refers to nutritional intake, including compounds like crocin from saffron, explored in therapeutic contexts. Understanding the impact of diet on health can elucidate how certain dietary components may contribute positively to conditions like Parkinson's disease, offering insights into preventive and symptomatic treatment strategies.
39) Male:
Male specifies the gender of the animal subjects used in the study, vital for ensuring consistent results and eliminating potential variations due to sex-based physiological differences. Using male rats strengthens the study's integrity, as hormonal differences can influence neurobiological responses in pharmacological experimentation.
Other Science Concepts:
Discover the significance of concepts within the article: �Effects of Crocin on 6-OHDA-Induced Hemiparkinsonian Rats�. Further sources in the context of Science might help you critically compare this page with similair documents:
Crocus sativus, Spinal Cord, Statistical analysis, Antioxidant activity, Pharmacological activities, Experimental model, Experimental group, Oxidative stress, Memory impairment, Reactive oxygen species, Parkinson's disease, One-way ANOVA, Lipid peroxidation, Anti-inflammatory effect, Oxidative damage, Antioxidant Effect, Radical Scavenging Activity, Biochemical analysis, Chronic administration, Nitric oxide, Chronic treatment, Protective effect, Neuroprotective effect, Antioxidant status, Inflammatory response, Neurodegeneration, Neurodegenerative disease, Statistical method, Cerebral Ischemia, Antihyperlipidemic effect, Free Radical, Crocin, Dopamine receptor, Glutathione peroxidase activity, Peroxidase activity, Dopaminergic system, Oxidative stress-related diseases, Wistar rat, Striatum, Neurotoxin, Nitric oxide synthase, TBARS level, Reactive nitrogen species, Dopamine Agonist, Motor activity, Cell death, Microglial activation, Inducible nitric oxide synthase, Nitrite levels, Dopamine transporter, Apoptotic pathway, Mitochondrial function, Protein Oxidation, Glutathione level, Parkinson disease, Motor deficit, Dopamine Depletion, Dopaminergic neuron, Oxidative cascade, Nitric oxide synthesis, Tukey post-hoc test, Green tea polyphenols, Sham group, Nitrite concentration, Experimental atherosclerosis, Lipid peroxidation level, Nitrosative stress, Rat brain, Peroxynitrite.