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Timalsina B, Haque MN, Choi HJ, Dash R, Moon IS. Thymol in Trachyspermum ammi seed extract exhibits neuroprotection, learning, and memory enhancement in scopolamine-induced Alzheimer's disease mouse model. Phytother Res 2023. [PMID: 36808768 DOI: 10.1002/ptr.7777] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/18/2022] [Accepted: 01/29/2023] [Indexed: 02/22/2023]
Abstract
Several reports have stated the neuroprotective and learning/memory effects of Tachyspermum ammi seed extract (TASE) and its principal component thymol; however, little is known about its underlying molecular mechanisms and neurogenesis potential. This study aimed to provide insights into TASE and a thymol-mediated multifactorial therapeutic approach in a scopolamine-induced Alzheimer's disease (AD) mouse model. TASE and thymol supplementation significantly reduced oxidative stress markers such as brain glutathione, hydrogen peroxide, and malondialdehyde in mouse whole brain homogenates. Tumor necrosis factor-alpha was significantly downregulated, whereas the elevation of brain-derived neurotrophic factor and phospho-glycogen synthase kinase-3 beta (serine 9) enhanced learning and memory in the TASE- and thymol-treated groups. A significant reduction in the accumulation of Aβ 1-42 peptides was observed in the brains of TASE- and thymol-treated mice. Furthermore, TASE and thymol significantly promoted adult neurogenesis, with increased doublecortin positive neurons in the subgranular and polymorphic zones of the dentate gyrus in treated-mice. Collectively, TASE and thymol could potentially act as natural therapeutic agents for the treatment of neurodegenerative disorders, such as AD.
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Affiliation(s)
- Binod Timalsina
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Korea
| | - Md Nazmul Haque
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Korea.,Department of Fisheries Biology and Genetics, Patuakhali Science and Technology University, Patuakhali, Bangladesh
| | - Ho Jin Choi
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Korea
| | - Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Korea
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Korea
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Sharma N, Tan MA, An SSA. Mechanistic Aspects of Apiaceae Family Spices in Ameliorating Alzheimer's Disease. Antioxidants (Basel) 2021; 10:1571. [PMID: 34679705 PMCID: PMC8533116 DOI: 10.3390/antiox10101571] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 02/02/2023] Open
Abstract
Alzheimer's disease (AD) is one of the most prevalent neurodegenerative diseases worldwide. In an effort to search for new strategies for treating AD, natural products have become candidates of choice. Plants are a rich source of bioactive and effective compounds used in treating numerous diseases. Various plant extracts are known to display neuroprotective activities by targeting different pathophysiological pathways in association with the diseases, such as inhibiting enzymes responsible for degrading neurotransmitters, reducing oxidative stress, neuroprotection, inhibiting amyloid plaque formation, and replenishing mitochondrial function. This review presented a comprehensive evaluation of the available scientific literature (in vivo, in vitro, and in silico) on the neuroprotective mechanisms displayed by the extracts/bioactive compounds from spices belonging to the Apiaceae family in ameliorating AD.
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Affiliation(s)
- Niti Sharma
- Department of Bionano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-Gu, Seongnam 461-701, Korea;
| | - Mario A. Tan
- College of Science and Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila 1015, Philippines;
| | - Seong Soo A. An
- Department of Bionano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-Gu, Seongnam 461-701, Korea;
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APOE genetic background and sex confer different vulnerabilities to postnatal chlorpyrifos exposure and modulate the response to cholinergic drugs. Behav Brain Res 2019; 376:112195. [DOI: 10.1016/j.bbr.2019.112195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 08/20/2019] [Accepted: 08/28/2019] [Indexed: 01/30/2023]
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Effect of Alkaloid Extract from African Jointfir ( Gnetum africanum) Leaves on Manganese-Induced Toxicity in Drosophila melanogaster. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:8952646. [PMID: 30693067 PMCID: PMC6332884 DOI: 10.1155/2018/8952646] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 10/01/2018] [Indexed: 11/17/2022]
Abstract
Metal-induced toxicity in fruit fly (Drosophila melanogaster) is one of the established models for studying neurotoxicity and neurodegenerative diseases. Phytochemicals, especially alkaloids, have been reported to exhibit neuroprotection. Here, we assessed the protective effect of alkaloid extract from African Jointfir (Gnetum africanum) leaf on manganese- (Mn-) induced toxicity in wild type fruit fly. Flies were exposed to 10 mM Mn, the alkaloid extract and cotreatment of Mn plus extract, respectively. The survival rate and locomotor performance of the flies were assessed 5 days posttreatment, at which point the flies were homogenized and assayed for acetylcholinesterase (AChE) activity, nitric oxide (NO), and reactive oxygen species (ROS) levels. Results showed that the extract significantly reverted Mn-induced reduction in the survival rate and locomotor performance of the flies. Furthermore, the extract counteracted the Mn-induced elevation in AChE activity, NO, and ROS levels. The alkaloid extract of the African Jointfir leaf may hence be a source of useful phytochemicals for the development of novel therapies for the management of neurodegeneration.
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Ogunsuyi OB, Ademiluyi AO, Oboh G, Oyeleye SI, Dada AF. Green leafy vegetables from two Solanum spp. ( Solanum nigrum L and Solanum macrocarpon L) ameliorate scopolamine-induced cognitive and neurochemical impairments in rats. Food Sci Nutr 2018; 6:860-870. [PMID: 29983948 PMCID: PMC6021738 DOI: 10.1002/fsn3.628] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/30/2018] [Accepted: 02/11/2018] [Indexed: 12/17/2022] Open
Abstract
This study examined the modulatory effect of Black nightshade (Solanum nigrum L) and African eggplant (Solanum macrocarpon L) leaves on cognitive function, antioxidant status, and activities of critical enzymes of monoaminergic and cholinergic systems of neurotransmission in scopolamine-administered rats. Cognitive impairment was induced in albino rats pretreated with dietary inclusions of Black nightshade (BN) and African eggplant (AE) leaves by single administration (i.p.) of scopolamine (2 mg/kg body weight). Prior to termination of the experiment, the rats were subjected to spontaneous alternation (Y-maze) test to assess their spatial working memory. Thereafter, activities of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), monoamine oxidase (MAO), arginase, and antioxidant enzymes (catalase, SOD, and GST) of rat brain homogenate were determined. Also, the malondialdehyde (MDA), nitrite, and GSH contents of the homogenate were determined. The results showed that pretreatment with dietary inclusions of AE and BN significantly reversed the impairment in the rats' spatial working memory induced by scopolamine. Similarly, elevations in activities of AChE, BChE, and MAO induced by scopolamine were significantly reversed in rats pretreated with dietary inclusions of AE and BN. In addition, impaired antioxidant status induced by scopolamine was reversed by pretreatment with dietary inclusions of AE and BN. This study has shown that dietary inclusions of AE and BN could protect against cognitive and neurochemical impairments induced by scopolamine, and hence, these vegetables could be used as a source of functional foods and nutraceuticals for the prevention and management of cognitive impairments associated diseases such as Alzheimer's disease.
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Affiliation(s)
- Opeyemi B. Ogunsuyi
- Department of Biomedical TechnologyFederal University of TechnologyAkureNigeria
- Department of BiochemistryFederal University of TechnologyAkureNigeria
| | | | - Ganiyu Oboh
- Department of BiochemistryFederal University of TechnologyAkureNigeria
| | - Sunday I. Oyeleye
- Department of Biomedical TechnologyFederal University of TechnologyAkureNigeria
- Department of BiochemistryFederal University of TechnologyAkureNigeria
| | - Abayomi F. Dada
- SLT Department (Biochemistry Unit)Federal Polytechnic EdeEdeOsun StateNigeria
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Yadav M, Jindal DK, Parle M, Kumar A, Dhingra S. Targeting oxidative stress, acetylcholinesterase, proinflammatory cytokine, dopamine and GABA by eucalyptus oil (Eucalyptus globulus) to alleviate ketamine-induced psychosis in rats. Inflammopharmacology 2018; 27:301-311. [PMID: 29464495 DOI: 10.1007/s10787-018-0455-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 02/07/2018] [Indexed: 01/02/2023]
Abstract
Essential oil of eucalyptus species is among the most common traded essential oils in the world. There is an increasing interest in the application of eucalyptus oil as a natural additive in food and pharmaceutical industry. The present study was undertaken to identify the phytoconstituents present in the essential oil of Eucalyptus globulus leaves (EO) and ascertain their protective effect against ketamine-induced psychosis in rats. GC-MS technique was used for analysis of phytoconstituents present in EO. Ketamine (50 mg/kg, i.p.) was used to induce psychosis in rats. Photoactometer, forced swim test and pole climb avoidance test were used to evaluate the protective effects of the EO (500, 1000 and 2000 mg/kg, p.o.) on acute and chronic administration. Bar test was used to test the side effect of EO. Biochemical and neurochemical estimations were carried out to explore the possible mechanism of action. GC-MS analysis of EO showed the presence of a number of biologically active compounds. EO at the dose of 500, 1000 and 2000 mg/kg, p.o. on acute and chronic administration, decreased locomotor activity, immobility duration and latency to climb the pole. EO was effective to facilitate the release of GABA, increase GSH levels, inhibit dopamine neurotransmission and decrease TNF-α levels as well as diminish AChE activity in different regions of the brain. EO at the dose of 500, 1000 mg/kg did not produce cataleptic behavior in rats. EO at the dose of 500, 1000 mg/kg produced protective effects against ketamine-induced psychosis and can be further explored clinically against neuropsychiatric disorders.
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Affiliation(s)
- Monu Yadav
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, India
| | - Deepak Kumar Jindal
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, India
| | - Milind Parle
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, India
| | - Anil Kumar
- University Institute of Pharmaceutical Sciences, UGC Center of Advanced Study (UGC-CAS) in Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Sameer Dhingra
- Faculty of Medical Sciences, School of Pharmacy, The University of the West Indies, St. Augustine Campus, St. Augustine, Trinidad and Tobago.
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Yadav M, Parle M, Jindal DK, Sharma N. Potential effect of spermidine on GABA, dopamine, acetylcholinesterase, oxidative stress and proinflammatory cytokines to diminish ketamine-induced psychotic symptoms in rats. Biomed Pharmacother 2018; 98:207-213. [DOI: 10.1016/j.biopha.2017.12.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 11/13/2017] [Accepted: 12/04/2017] [Indexed: 12/31/2022] Open
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Yadav M, Parle M, Jindal DK, Dhingra S. Protective effects of stigmasterol against ketamine-induced psychotic symptoms: Possible behavioral, biochemical and histopathological changes in mice. Pharmacol Rep 2018; 70:591-599. [PMID: 29679883 DOI: 10.1016/j.pharep.2018.01.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 11/30/2017] [Accepted: 01/09/2018] [Indexed: 01/18/2023]
Abstract
BACKGROUND Stigmasterol, a naturally occurring phytoestrogen has been reported to possess many pharmacological activities. The aim of the present study was to screen the effect of stigmasterol against ketamine-induced mice model of psychosis. METHODS The behavioural studies included an assessment of locomotor activity, stereotypic behaviours, immobility duration, step down latency and effects on catalepsy. Biochemical estimations involved the estimations of GABA, dopamine, GSH, MDA, TNF-α, total protein content and AChE activity. Histopathological changes and effect on androgenic parameters were also evaluated. RESULTS Stigmasterol treated animals showed significant decrease in locomotor activity, stereotypic behaviours, immobility duration and increased step down latency. Biochemical estimations revealed increased GABA, GSH levels and decreased dopamine, MDA, TNF-α levels and AChE activity. These findings were confirmed by histopathological changes in the cortex part of the brain. Further, stigmasterol was not found to cause catalepsy and any adverse effect on the reproductive system. CONCLUSION This study concluded that stigmasterol could ameliorate ketamine-induced behavioral, biochemical and histopathological alterations in mice showing its potential effects in the management of psychotic symptoms.
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Affiliation(s)
- Monu Yadav
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Milind Parle
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, India.
| | - Deepak Kumar Jindal
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Sameer Dhingra
- Faculty of Medical Sciences, School of Pharmacy, The University of the West Indies, St. Augustine, Trinidad and Tobago
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Yadav M, Parle M, Sharma N, Dhingra S, Raina N, Jindal DK. Brain targeted oral delivery of doxycycline hydrochloride encapsulated Tween 80 coated chitosan nanoparticles against ketamine induced psychosis: behavioral, biochemical, neurochemical and histological alterations in mice. Drug Deliv 2017; 24:1429-1440. [PMID: 28942680 PMCID: PMC8241001 DOI: 10.1080/10717544.2017.1377315] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/01/2017] [Accepted: 09/05/2017] [Indexed: 12/28/2022] Open
Abstract
To develop statistically optimized brain targeted Tween 80 coated chitosan nanoparticulate formulation for oral delivery of doxycycline hydrochloride for the treatment of psychosis and to evaluate its protective effect on ketamine induced behavioral, biochemical, neurochemical and histological alterations in mice. 32 full factorial design was used to optimize the nanoparticulate formulation to minimize particle size and maximize entrapment efficiency, while independent variables chosen were concentration of chitosan and Tween 80. The optimized formulation was characterized by particle size, drug entrapment efficiency, Fourier transform infrared, Transmission electron microscopy analysis and drug release behavior. Pure doxycycline hydrochloride (25 and 50 mg/kg, p.o.) and optimized doxycycline hydrochloride encapsulated Tween 80 coated chitosan nanoparticles (DCNPopt) (equivalent to 25 mg/kg doxycycline hydrochloride, p.o.) were explored against ketamine induced psychosis in mice. The experimental studies for DCNPopt, with mean particle size 237 nm and entrapment efficiency 78.16%, elucidated that the formulation successfully passed through blood brain barrier and exhibited significant antipsychotic activity. The underlying mechanism of action was further confirmed by behavioral, biochemical, neurochemical estimations and histopathological study. Significantly enhanced GABA and GSH level and diminished MDA, TNF-α and dopamine levels were observed after administration of DCNPopt at just half the dose of pure doxycycline hydrochloride, showing better penetration of doxycyline hydrochloride in the form of Tween 80 coated nanoparticles through blood brain barrier. This study demonstrates the hydrophilic drug doxycycline hydrochloride, loaded in Tween 80 coated chitosan nanoparticles, can be effectively brain targeted through oral delivery and therefore represents a suitable approach for the treatment of psychotic symptoms.
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Affiliation(s)
- Monu Yadav
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science & Technology, Hisar, India
| | - Milind Parle
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science & Technology, Hisar, India
| | - Nidhi Sharma
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science & Technology, Hisar, India
| | - Sameer Dhingra
- Faculty of Medical Sciences, School of Pharmacy, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Neha Raina
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science & Technology, Hisar, India
| | - Deepak Kumar Jindal
- Faculty of Medical Sciences, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science & Technology, Hisar, India
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