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Mandal PK, Katukojvala S. Rh-Catalyzed Chemodivergent [3+3] Annulations of Diazoenals and α-Aminoketones: Direct Synthesis of Functionalized 1,2-Dihydropyridines and Fused 1,4-Oxazines. Chemistry 2024; 30:e202303862. [PMID: 38165004 DOI: 10.1002/chem.202303862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/25/2023] [Accepted: 01/02/2024] [Indexed: 01/03/2024]
Abstract
Novel rhodium-catalyzed [3+3] annulations of diazoenals and α-amino ketones has been disclosed here. The reactivity of diazoenals has been switched from carbenoid to vinylogous NH-insertion by altering acyclic to cyclic α-amino ketones. In this direction, we report an efficient strategy to synthesize 1,2-dihydropyridines (DHPs) and fused 1,4-oxazines. Mechanistic investigation revealed that the formyl group is necessary for carbenoid [3+3] annulation and the cyclohexyl group is the dictating factor for vinylogous NH- insertion. The synthetic utility of 1,2-dihydropyridines was demonstrated by synthesizing piperidine, pyrido[1,2-a]indole, and 2-pyridone scaffolds. Further, structural diversification of fused 1,4-oxazines resulted in the short synthesis of hexahydroquinolin-2(1H)-ones, hexahydro quinolines and tetrahydroquinolinones via ring opening rearrangement and a new oxidative deformylation, respectively.
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Affiliation(s)
- Pratap Kumar Mandal
- Department of Chemistry, Indian Institute of Science Education & Research, Bhopal, Madhya Pradesh, 462066
| | - Sreenivas Katukojvala
- Department of Chemistry, Indian Institute of Science Education & Research, Bhopal, Madhya Pradesh, 462066
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Ansari F, Sohel M, Haidary MMH, Mostaq MS, Akter S, Nahar A, Labony FZ, Ahmed A, Hasan MS, Babu MH, Amin MN. Therapeutic potential of clinically proven natural products in the management of dementia. Heliyon 2024; 10:e27233. [PMID: 38533051 PMCID: PMC10963206 DOI: 10.1016/j.heliyon.2024.e27233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 02/25/2024] [Accepted: 02/26/2024] [Indexed: 03/28/2024] Open
Abstract
Dementia is a common neurodegenerative disorder connected to damage to nerve cells in the brain. Although some conventional drugs are available for dementia treatments and are still sanctified for dementia patients, their short- and long-term side effects and other limitations make treating patients more challenging. The authors aimed to explain novel options for treating dementia with natural products and unravel some clinically proven natural products. This article systematically reviewed recent studies that have investigated the role of natural products and their bioactive compounds for dementia. PubMed Central, Scopus, and Google Scholar databases of articles were collected, and abstracts were reviewed for relevance to the subject matter.In this review, we provide mechanistic insights of clinically validated natural products, including like- Yokukansan, Souvenaid, BDW, Hupergene, Bacopa monnier, Omega-3, Tramiprostate and Palmitoylethanolamide with which have therapeutic efficacy against dementia in the management of dementia. As shown by studies, certain natural ingredients could be used to treat and prevent dementia. We strongly believe that the medicinal plants and phytoconstituents alone or in combination with other compounds would be effective treatments against dementia with lesser side effects as compared to currently available treatments. Moreover, these products should be studied further in order to develop novel dementia medications.
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Affiliation(s)
- Farzana Ansari
- Department of Biochemistry and Molecular Biology, Laboratory of Nutrition and Health Research, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Md Sohel
- Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Santosh, Tangail, 1902, Bangladesh
- Pratyasha Health Biomedical Research Center, Dhaka, 1230, Bangladesh
| | | | - Md Saqline Mostaq
- Department of Pharmacy, University of Asia Pacific, Dhaka, 1205, Bangladesh
| | - Shamima Akter
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230. Bangladesh
| | - Asrafun Nahar
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230. Bangladesh
| | | | - Arman Ahmed
- Department of Pharmacy, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Mohammed Shamim Hasan
- Department of Pharmacy, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Mohammad Hasem Babu
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230. Bangladesh
| | - Mohammad Nurul Amin
- Pratyasha Health Biomedical Research Center, Dhaka, 1230, Bangladesh
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230. Bangladesh
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Lersch R, Jannadi R, Grosse L, Wagner M, Schneider MF, von Stülpnagel C, Heinen F, Potschka H, Borggraefe I. Targeted Molecular Strategies for Genetic Neurodevelopmental Disorders: Emerging Lessons from Dravet Syndrome. Neuroscientist 2023; 29:732-750. [PMID: 35414300 PMCID: PMC10623613 DOI: 10.1177/10738584221088244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dravet syndrome is a severe developmental and epileptic encephalopathy mostly caused by heterozygous mutation of the SCN1A gene encoding the voltage-gated sodium channel α subunit Nav1.1. Multiple seizure types, cognitive deterioration, behavioral disturbances, ataxia, and sudden unexpected death associated with epilepsy are a hallmark of the disease. Recently approved antiseizure medications such as fenfluramine and cannabidiol have been shown to reduce seizure burden. However, patients with Dravet syndrome are still medically refractory in the majority of cases, and there is a high demand for new therapies aiming to improve behavioral and cognitive outcome. Drug-repurposing approaches for SCN1A-related Dravet syndrome are currently under investigation (i.e., lorcaserin, clemizole, and ataluren). New therapeutic concepts also arise from the field of precision medicine by upregulating functional SCN1A or by activating Nav1.1. These include antisense nucleotides directed against the nonproductive transcript of SCN1A with the poison exon 20N and against an inhibitory noncoding antisense RNA of SCN1A. Gene therapy approaches such as adeno-associated virus-based upregulation of SCN1A using a transcriptional activator (ETX101) or CRISPR/dCas technologies show promising results in preclinical studies. Although these new treatment concepts still need further clinical research, they offer great potential for precise and disease modifying treatment of Dravet syndrome.
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Affiliation(s)
- Robert Lersch
- Department of Pediatrics, Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
| | - Rawan Jannadi
- Department of Pediatrics, Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
- Institute of Human Genetics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
| | - Leonie Grosse
- Department of Pediatrics, Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
| | - Matias Wagner
- Department of Pediatrics, Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
- Institute of Human Genetics, Technical University of Munich, Munich, Germany
- Institute for Neurogenomics, Helmholtz Centre Munich, German Research Center for Health and Environment (GmbH), Munich, Germany
| | - Marius Frederik Schneider
- Metabolic Biochemistry, Biomedical Center Munich, Medical Faculty, Ludwig Maximilians University, Munich, Germany
- International Max Planck Research School (IMPRS) for Molecular Life Sciences, Planegg-Martinsried, Germany
| | - Celina von Stülpnagel
- Department of Pediatrics, Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
- Research Institute for Rehabilitation, Transition and Palliation, Paracelsus Medical Private University (PMU), Salzburg, Austria
| | - Florian Heinen
- Department of Pediatrics, Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
| | - Heidrun Potschka
- Institute of Pharmacology, Toxicology, and Pharmacy, Ludwig Maximilians University, Munich, Germany
| | - Ingo Borggraefe
- Department of Pediatrics, Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
- Comprehensive Epilepsy Center, University Hospital of Munich, Ludwig Maximilians University, Munich, Germany
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Hersant H, He S, Maliha P, Grossberg G. Over the Counter Supplements for Memory: A Review of Available Evidence. CNS Drugs 2023; 37:797-817. [PMID: 37603263 DOI: 10.1007/s40263-023-01031-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/24/2023] [Indexed: 08/22/2023]
Abstract
In 2021, the Global Brain Health Supplement Industry Market size was valued at US$7.6 billion. It is predicted to increase to US$15.59 billion by 2030. Memory and its enhancement are a segment of the market that comprised the highest global revenue share in 2021. In the USA alone, dietary supplement sales reached US$18 billion in 2018. The US Food and Drug Administration (FDA) does not have the authority to approve dietary supplements' safety, effectiveness, or labeling before products go on the market. The FDA often does not even review supplements before they go to market. Supplement manufacturers are thus responsible for ensuring their products are safe and that their claims are truthful. An extensive review of current supplements on the market was performed by surveying memory products for sale at local and national pharmacies and grocery stores. A list of 103 supplements was compiled and the ingredients in these memory supplements were reviewed. The 18 most common ingredients in these supplements were identified. Each of the supplements included at least one of the 18 most common ingredients. Scientific data relative to these ingredients and their effect on memory was searched using PubMed and Cochrane library databases. Currently, there is no compelling evidence for use of apoaequorin, coenzyme Q10, coffee extracts, L-theanine, omega-3 fatty acids, vitamin B6, vitamin B9, or vitamin B12 supplementation for memory. On the other hand, there is some current evidence for memory benefit from supplementation with ashwagandha, choline, curcumin, ginger, Lion's Mane, polyphenols, phosphatidylserine, and turmeric. There are current studies with mixed results regarding the benefit of carnitine, gingko biloba, Huperzine A, vitamin D, and vitamin E supplementation for memory. Dietary supplements geared toward improving cognition are a billion-dollar industry that continues to grow despite lacking a solid scientific foundation for their marketing claims. More rigorous studies are needed relative to the long-term use of these supplements in homogenous populations with standardized measurements of cognition. Health care providers need to be aware of any and all supplements their older adult patients may be consuming and be educated about their side effects and interactions with prescription medications. Lastly, the FDA needs to take an active position relative to monitoring marketed supplements regarding safety, purity and claims of efficacy.
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Affiliation(s)
- Haley Hersant
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA.
| | - Sean He
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA
| | - Peter Maliha
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA
| | - George Grossberg
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA
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Sawangjit R, Chuenchom C, Sanverm T, Chaiyakunapruk N, Jiranukool J, Nithipaijit R, Sadoyu S, Phianchana C, Jinatongthai P. Efficacy and safety of herbal medicine on dementia and cognitive function: An umbrella review of systematic reviews and meta-analysis. Phytother Res 2023. [PMID: 36728740 DOI: 10.1002/ptr.7759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/09/2022] [Accepted: 01/22/2023] [Indexed: 02/03/2023]
Abstract
This study aims to summarize the effects of herbs on dementia and assess the strength of evidence. Six international and local databases were searched from inception to October 2021 for systematic reviews and meta-analyses of clinical trials investigated the effects of herbal medicine on dementia or cognitive function. Two researchers independently extracted data, assessed the methodological quality, and rated the credibility of evidence according to established criteria. Thirty-seven articles evaluating 13 herbal medicines were included. Of these, 65% were rated critically low using AMSTAR2. Of 90 unique outcomes, 41 (45.6%) were statistically significant based on random effects model (p ≤ .05). Only 3 herbs were supported by suggestive evidence whereas the others were supported by weak evidence. The suggestive evidence supported benefits of Chinese herbal medicine (CHM) plus pharmacotherapy (WMD:1.84; 95% CI: 1.34, 2.35) and Vinpocetine (WMD: -0.94; 95%CI: -1.50, -0.38) on improving cognitive function assessing by Montreal Cognitive Assessment and Syndrom-Kurz-Test, respectively. Moreover, suggestive evidence supported benefit of Huperzia serrata on improving Activities of Daily Living (WMD:-7.18; 95%CI: -9.12, -5.23). No SAE was reported. In conclusion, several herbs were used for improving dementia and cognitive function but recent evidence were limited by the small sample size and poor methodological quality. Therefore, further large and well-designed studies are needed to support the evidence.
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Affiliation(s)
- Ratree Sawangjit
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mahasarakham University, Mahasarakham, Thailand.,Clinical Trials and Evidence-Based Syntheses Research Unit (CTEBs RU), Mahasarakham University, Mahasarakham, Thailand
| | - Chorthip Chuenchom
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mahasarakham University, Mahasarakham, Thailand
| | - Thanchanok Sanverm
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mahasarakham University, Mahasarakham, Thailand
| | - Nathorn Chaiyakunapruk
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
| | - Jariya Jiranukool
- Department of Psychiatry, Faculty of Medicine, Mahasarakham University, Mahasarakham, Thailand
| | - Rodchares Nithipaijit
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mahasarakham University, Mahasarakham, Thailand.,Clinical Trials and Evidence-Based Syntheses Research Unit (CTEBs RU), Mahasarakham University, Mahasarakham, Thailand
| | | | - Chankiat Phianchana
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mahasarakham University, Mahasarakham, Thailand
| | - Peerawat Jinatongthai
- Pharmacy Practice Division, Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani, Thailand
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Shin HJ, Lim YG, Ha JS, Yang G, Yook TH. Bacterial Reverse Mutation Test of Verbenalin. J Pharmacopuncture 2022; 25:364-368. [PMID: 36628351 PMCID: PMC9806159 DOI: 10.3831/kpi.2022.25.4.364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 08/24/2022] [Accepted: 09/06/2022] [Indexed: 12/30/2022] Open
Abstract
Objectives Verbenalin is a compound found in herbs such as Cornus officinalis and Verbena officinalis. This study investigated whether verbenalin is safe by analyzing its mutagenicity. Methods To examine the mutagenic potential of verbenalin, a bacterial reverse mutation test (Ames test) was conducted with Salmonella typhimurium and Escherichia coli strains. Experiments with and without metabolic activity were performed. Results The mean colony number was less than double that of the control. Growth inhibition and precipitation of verbenalin were not apparent in all strains at different concentrations regardless of metabolic activity. Conclusion Verbenalin did not show any signs of mutagenicity in this study. Additional toxicity studies including repeated oral toxicity, reproductive toxicity, and carcinogenicity tests are needed.
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Affiliation(s)
- Hye Jeong Shin
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Yi Gun Lim
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Ji Su Ha
- Department of Acupuncture & Moxibustion Medicine, National Medical Center, Seoul, Republic of Korea
| | - Gabsik Yang
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Tae Han Yook
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea,Corresponding Author Tae Han Yook, Department of Korean Medicine, College of Korean Medicine, Woosuk University, 61 Seonneomeo 3-gil, Wansan-gu, Jeonju 54986, Republic of Korea, Tel: +82-63-220-8625, E-mail:
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Cunliffe G, Lim YT, Chae W, Jung S. Alternative Pharmacological Strategies for the Treatment of Alzheimer's Disease: Focus on Neuromodulator Function. Biomedicines 2022; 10:3064. [PMID: 36551821 PMCID: PMC9776382 DOI: 10.3390/biomedicines10123064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder, comprising 70% of dementia diagnoses worldwide and affecting 1 in 9 people over the age of 65. However, the majority of its treatments, which predominantly target the cholinergic system, remain insufficient at reversing pathology and act simply to slow the inevitable progression of the disease. The most recent neurotransmitter-targeting drug for AD was approved in 2003, strongly suggesting that targeting neurotransmitter systems alone is unlikely to be sufficient, and that research into alternate treatment avenues is urgently required. Neuromodulators are substances released by neurons which influence neurotransmitter release and signal transmission across synapses. Neuromodulators including neuropeptides, hormones, neurotrophins, ATP and metal ions display altered function in AD, which underlies aberrant neuronal activity and pathology. However, research into how the manipulation of neuromodulators may be useful in the treatment of AD is relatively understudied. Combining neuromodulator targeting with more novel methods of drug delivery, such as the use of multi-targeted directed ligands, combinatorial drugs and encapsulated nanoparticle delivery systems, may help to overcome limitations of conventional treatments. These include difficulty crossing the blood-brain-barrier and the exertion of effects on a single target only. This review aims to highlight the ways in which neuromodulator functions are altered in AD and investigate how future therapies targeting such substances, which act upstream to classical neurotransmitter systems, may be of potential therapeutic benefit in the sustained search for more effective treatments.
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Affiliation(s)
- Grace Cunliffe
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK
| | - Yi Tang Lim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore
- Faculty of Science, National University of Singapore, Singapore 117546, Singapore
| | - Woori Chae
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Republic of Korea
| | - Sangyong Jung
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore
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Atanasova M, Dimitrov I, Ivanov S, Georgiev B, Berkov S, Zheleva-Dimitrova D, Doytchinova I. Virtual Screening and Hit Selection of Natural Compounds as Acetylcholinesterase Inhibitors. Molecules 2022; 27:3139. [PMID: 35630613 PMCID: PMC9145144 DOI: 10.3390/molecules27103139] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 12/10/2022] Open
Abstract
Acetylcholinesterase (AChE) is one of the classical targets in the treatment of Alzheimer's disease (AD). Inhibition of AChE slows down the hydrolysis of acetycholine and increases choline levels, improving the cognitive function. The achieved success of plant-based natural drugs acting as AChE inhibitors, such as galantamine (GAL) from Galanthus genus and huperzine A from Huperzia serrate (approved drug in China), in the treatment of AD, and the fact that natural compounds (NCs) are considered as safer and less toxic compared to synthetic drugs, led us to screen the available NCs (almost 150,000) in the ZINC12 database for AChE inhibitory activity. The compounds were screened virtually by molecular docking, filtered for suitable ADME properties, and 32 ligands from 23 structural groups were selected. The stability of the complexes was estimated via 1 μs molecular dynamics simulation. Ten compounds formed stable complexes with the enzyme and had a vendor and a reasonable price per mg. They were tested for AChE inhibitory and antioxidant activity. Five compounds showed weak AChE inhibition and three of them exhibited high antioxidant activity.
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Affiliation(s)
- Mariyana Atanasova
- Chemistry Department, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.D.); (S.I.); (D.Z.-D.); (I.D.)
| | - Ivan Dimitrov
- Chemistry Department, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.D.); (S.I.); (D.Z.-D.); (I.D.)
| | - Stefan Ivanov
- Chemistry Department, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.D.); (S.I.); (D.Z.-D.); (I.D.)
- Redesign Science, 180 Varick St, New York, NY 10014, USA
| | - Borislav Georgiev
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.G.); (S.B.)
| | - Strahil Berkov
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.G.); (S.B.)
| | - Dimitrina Zheleva-Dimitrova
- Chemistry Department, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.D.); (S.I.); (D.Z.-D.); (I.D.)
| | - Irini Doytchinova
- Chemistry Department, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.D.); (S.I.); (D.Z.-D.); (I.D.)
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Shiryaev VA, Sokolova IV, Gorbachova AM, Rybakov VB, Shiryaev AK, Klimochkin YN. Convenient synthesis of endo,endo- and endo,exo-bicyclo[3.3.1]nonane diamines. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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A Synopsis of Multitarget Potential Therapeutic Effects of Huperzine A in Diverse Pathologies-Emphasis on Alzheimer's Disease Pathogenesis. Neurochem Res 2022; 47:1166-1182. [PMID: 35122609 DOI: 10.1007/s11064-022-03530-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 01/12/2022] [Accepted: 01/15/2022] [Indexed: 10/19/2022]
Abstract
Numerous challenges are confronted when it comes to the recognition of therapeutic agents for treating complex neurodegenerative diseases like Alzheimer's disease (AD). The perplexing pathogenicity of AD embodies cholinergic dysfunction, amyloid beta (Aβ) aggregation, neurofibrillary tangle formation, neuroinflammation, mitochondrial disruption along with vicious production of reactive oxygen species (ROS) generating oxidative stress. In this frame of reference, drugs with multi target components could prove more advantageous to counter complex pathological mechanisms that are responsible for AD progression. For as much as, medicinal plant based pharmaco-therapies are emerging as potential candidates for AD treatment keeping the efficacy and safety parameters in terms of toxicity and side effects into consideration. Huperzine A (Hup A) is a purified alkaloid compound extracted from a club moss called Huperzia serrata. Several studies have reported both cholinergic and non-cholinergic effects of this compound on AD with significant neuroprotective properties. The present review convenes cumulative demonstrations of neuroprotection provided by Hup A in in vitro, in vivo, and human studies in various pathologies. The underlying molecular mechanisms of its actions have also been discussed. However, more profound evidence would certainly promote the therapeutic implementation of this drug thus furnishing decisive insights into AD therapeutics and various other pathologies along with preventive and curative management.
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Amat-ur-Rasool H, Ahmed M, Hasnain S, Ahmed A, Carter WG. In Silico Design of Dual-Binding Site Anti-Cholinesterase Phytochemical Heterodimers as Treatment Options for Alzheimer’s Disease. Curr Issues Mol Biol 2021; 44:152-175. [PMID: 35723391 PMCID: PMC8929005 DOI: 10.3390/cimb44010012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/14/2022] Open
Abstract
The number of patients with neurodegenerative diseases, particularly Alzheimer’s disease (AD), continues to grow yearly. Cholinesterase inhibitors (ChEIs) represent the first-line symptomatic drug treatment for mild-to-moderate AD; however, there is an unmet need to produce ChEIs with improved efficacy and reduced side effects. Herein, phytochemicals with reported anti-acetylcholinesterase (AChE) activity were ranked in silico for their anti-AChE potential. Ligands with a similar or higher binding affinity to AChE than galantamine were then selected for the design of novel dual-binding site heterodimeric drugs. In silico molecular docking of heterodimers with the target enzymes, AChE and butyrylcholinesterase (BuChE), were performed, and anti-cholinesterase binding affinities were compared with donepezil. Drug-likeliness properties and toxicity of the heterodimers were assessed using the SwissADME and ProTox-II webservers. Nine phytochemicals displayed similar or higher binding affinities to AChE than galantamine: sanguinarine > huperzine A > chelerythrine > yohimbine > berberine > berberastine > naringenin > akuammicine > carvone. Eleven heterodimeric ligands were designed with phytochemicals separated by four- or five-carbon alkyl-linkers. All heterodimers were theoretically potent AChE and BuChE dual-binding site inhibitors, with the highest affinity achieved with huperzine-4C-naringenin, which displayed 34% and 26% improved affinity to AChE and BuChE, respectively, then the potent ChEI drug, donepezil. Computational pharmacokinetic and pharmacodynamic screening suggested that phytochemical heterodimers would display useful gastrointestinal absorption and with relatively low predicted toxicity. Collectively, the present study suggests that phytochemicals could be garnered for the provision of novel ChEIs with enhanced drug efficacy and low toxicity.
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Affiliation(s)
- Hafsa Amat-ur-Rasool
- School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Derby DE22 3DT, UK;
- Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore 54590, Pakistan; (M.A.); (S.H.)
| | - Mehboob Ahmed
- Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore 54590, Pakistan; (M.A.); (S.H.)
| | - Shahida Hasnain
- Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore 54590, Pakistan; (M.A.); (S.H.)
| | - Abrar Ahmed
- Faculty of Pharmacy, Punjab University College of Pharmacy, University of the Punjab, Lahore 54590, Pakistan;
| | - Wayne Grant Carter
- School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Derby DE22 3DT, UK;
- Correspondence: ; Tel.: +44-(0)-1332-724738
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Fan F, Liu H, Shi X, Ai Y, Liu Q, Cheng Y. The Efficacy and Safety of Alzheimer's Disease Therapies: An Updated Umbrella Review. J Alzheimers Dis 2021; 85:1195-1204. [PMID: 34924395 DOI: 10.3233/jad-215423] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Evidence summaries for efficacy and safety of frequently employed treatments of Alzheimer's disease (AD) are sparse. OBJECTIVE We aimed to perform an updated umbrella review to identify an efficacious and safe treatment for AD patients. METHODS We conducted a search for meta-analyses and systematic reviews on the Embase, PubMed, The Cochrane Library, and Web of Science to address this knowledge gap. We examined the cognitive functions, behavioral symptoms, global clinical assessment, and Activities of Daily Living as efficacy endpoints, and the incidence of adverse events as safety profiles. RESULTS Sixteen eligible papers including 149 studies were included in the umbrella review. The results showed that AChE inhibitors (donepezil, galantamine, rivastigmine, Huperzine A), Ginkgo biloba, and cerebrolysin appear to be beneficial for cognitive, global performances, and activities of daily living in patients with AD. Furthermore, anti-Aβ agents are unlikely to have an important effect on slowing cognitive or functional impairment in mild to moderate AD. CONCLUSION Our study demonstrated that AChE inhibitors, Ginkgo biloba, and cerebrolysin are the optimum cognitive and activities of daily living medication for patients with AD.
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Affiliation(s)
- Fangcheng Fan
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing, China
| | - Hua Liu
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing, China
| | - Xiaojie Shi
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing, China
| | - Yangwen Ai
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing, China
| | - Qingshan Liu
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing, China
| | - Yong Cheng
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing, China.,College of Life and Environmental Sciences, Minzu University of China, Beijing, China
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13
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Synthesis and Spectral Characterisation of (E)-3-(3-(4 (Dimethylamino)Phenyl)Acrylo-yl)-4-Hydroxy-2H-Chromen-2-One and Their Antibacterial Activity and Acetylcholinesterase Inhibition. J CHEM-NY 2021. [DOI: 10.1155/2021/6101359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
A new coumarin derivative, (E)-3-(3-(4-(dimethylamino) phenyl) acrylo-yl)-4-hydroxy-2H-chromen-2-one (3), was synthesized by the condensation of 3-acetyl-4-hydroxycoumarin (1) with 4-N,N-dimethylaminobenzaldehyde (2) in the presence of piperidine in ethanol. The structure of the synthesized compound was characterized using spectroscopic data (IR and 1H NMR) and elemental analysis. The antimicrobial properties and acetylcholinesterase inhibition activity (AChEI) of coumarin 3 were investigated, with the highest observed AChEI activity providing 48.25% inhibition. The electronic absorption and emission spectra revealed that 3 exists as two, main keto-enol tautomers. The ratios of these tautomers in both protic and aprotic solvents with different polarities and dielectric constants were calculated. The fluorescence of coumarin 3 was enhanced upon increasing the medium viscosity, which was due to the resultant molecular rigidity. This criterion was further investigated using DNA, whereby 3 showed enhanced fluorescence upon its uptake in DNA grooves and was therefore tested as a novel DNA fluorescent stain.
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14
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Anwar H, Rasul A, Iqbal J, Ahmad N, Imran A, Malik SA, Ijaz F, Akram R, Maqbool J, Sajid F, Sun T, Hussain G, Manzoor MF. Dietary biomolecules as promising regenerative agents for peripheral nerve injury: An emerging nutraceutical-based therapeutic approach. J Food Biochem 2021; 45:e13989. [PMID: 34719796 DOI: 10.1111/jfbc.13989] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/29/2021] [Accepted: 10/10/2021] [Indexed: 12/22/2022]
Abstract
Peripheral nerve damage is a debilitating condition that can result in partial or complete functional loss as a result of axonal degeneration, as well as lifelong dependence. Many therapies have been imbued with a plethora of positive features while posing little risks. It is worth noting that these biomolecules work by activating several intrinsic pathways that are known to be important in peripheral nerve regeneration. Although the underlying mechanism is used for accurate and speedy functional recovery, none of them are without side effects. As a result, it is believed that effective therapy is currently lacking. The dietary biomolecules-based intervention, among other ways, is appealing, safe, and effective. Upregulation of transcription factors, neurotrophic factors, and growth factors such as NGF, GDNF, BDNF, and CTNF may occur as a result of these substances' dietary intake. Upregulation of the signaling pathways ERK, JNK, p38, and PKA has also been seen, which aids in axonal regeneration. Although several mechanistic approaches to understanding their involvement have been suggested, more work is needed to reveal the amazing properties of these biomolecules. We have discussed in this article that how different dietary biomolecules can help with functional recovery and regeneration after an injury. PRACTICAL APPLICATIONS: Based on the information known to date, we may conclude that treatment techniques for peripheral nerve injury have downsides, such as complications, donor shortages, adverse effects, unaffordability, and a lack of precision in efficacy. These difficulties cast doubt on their efficacy and raise severe concerns about the prescription. In this situation, the need for safe and effective therapeutic techniques is unavoidable, and dietary biomolecules appear to be a safe, cost-efficient, and effective way to promote nerve regeneration following an injury. The information on these biomolecules has been summarized here. Upregulation of transcription factors, neurotrophic factors, and growth factors, such as NGF, GDNF, BDNF, and CTNF, as well as the ERK, JNK, p38, and PKA, signaling pathways, may stimulate axonal regeneration.
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Affiliation(s)
- Haseeb Anwar
- Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
| | - Azhar Rasul
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
| | - Javed Iqbal
- Department of Neurology, Allied Hospital, Faisalabad Medical University, Faisalabad, Pakistan
| | - Nazir Ahmad
- Institute of Home and Food Sciences, Government College University, Faisalabad, Pakistan
| | - Ali Imran
- Institute of Home and Food Sciences, Government College University, Faisalabad, Pakistan
| | - Shoaib Ahmad Malik
- Department of Biochemistry, Sargodha Medical College, University of Sargodha, Sargodha, Pakistan
| | - Fazeela Ijaz
- Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
| | - Rabia Akram
- Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
| | - Javeria Maqbool
- Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
| | - Faiqa Sajid
- Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
| | - Tao Sun
- Center for Precision Medicine, School of Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen, China
| | - Ghulam Hussain
- Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
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Fu H, Liu M, Yan J, Zhao N, Qu L. Stachydrine Inhibits PC12 Cell Apoptosis Induced by Aβ25-35 in an in vitro Cell Model of Neurocognitive Disorders. LETT DRUG DES DISCOV 2021. [DOI: 10.2174/1570180817999201110115007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Abnormal deposition of amyloid beta (Aβ) is considered the primary
cause of neurocognitive disorders (NCDs). Inhibiting cytotoxicity is an important aspect of the
treatment of NCDs. Stachydrine (STA) has been widely used for gynecological and cardiovascular
disorders. However, whether STA has protective functions in PC12 cells treated with Aβ25-35 remains
unclear.
Introduction:
Traditional Chinese Medicine, stachydrine (STA), is a water-soluble alkaloid of
Leonurus heterophyllus, which can inhibit cell apoptosis, suppress tumor growth, maintain homeostasis
of myocardial cells, and alleviate endothelial dysfunction. This study will investigate the effect
of STA on inhibiting PC12 cell apoptosis induced by Aβ25-35 in an in vitro cell model of neurocognitive
disorders.
Methods:
The differentially expressed genes (DEGs) in cells treated with STA were analyzed according
to the Gene Expression Omnibus (GSE) 85871 data, and the STITCH database was used to
identify the target genes of STA. PC12 cells were treated with Aβ25-35 and/or STA, 3-(4,5-
dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was performed and lactate
dehydrogenase (LDH) activity was determined. The cell cycle distribution was detected by flow
cytometry, and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) or Western
blotting were used to detect the expression of genes or proteins.
Results:
GSE85871 data showed 37 upregulated and 48 downregulated genes among the DEGs
affected by STA. The results from the STITCH database showed that RPS8 and EED were target
genes of STA. GSE1297 analysis showed the 13 most significantly upregulated genes. STA might
affect the occurrence of NCDs through the interaction of TP53 with EED and RPS8. Finally, Aβ25-35
promoted apoptosis and LDH release of PC-12 cells, arrested the cell cycle in the G2/M phase, and
inhibited the expression of the RPS8, EED, Bcl-2 and P53 genes. STA could reverse the effect of
Aβ25-35.
Conclusion:
STA may play an important role in inhibiting apoptosis induced by Aβ25-35 by targeting
the RPS8 and EED genes in the NCDs model in vitro.
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Affiliation(s)
- Huan Fu
- Department of Anesthesiology, First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Mei Liu
- Department of Anesthesiology, First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jinxiu Yan
- Department of Anesthesiology, First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Na Zhao
- Department of Anesthesiology, First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Liangchao Qu
- Department of Anesthesiology, First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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16
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Singh AK, Rai SN, Maurya A, Mishra G, Awasthi R, Shakya A, Chellappan DK, Dua K, Vamanu E, Chaudhary SK, Singh MP. Therapeutic Potential of Phytoconstituents in Management of Alzheimer's Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:5578574. [PMID: 34211570 PMCID: PMC8208882 DOI: 10.1155/2021/5578574] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/28/2021] [Indexed: 01/03/2023]
Abstract
Since primitive times, herbs have been extensively used in conventional remedies for boosting cognitive impairment and age-associated memory loss. It is mentioned that medicinal plants have a variety of dynamic components, and they have become a prominent choice for synthetic medications for the care of cognitive and associated disorders. Herbal remedies have played a major role in the progression of medicine, and many advanced drugs have already been developed. Many studies have endorsed practicing herbal remedies with phytoconstituents, for healing Alzheimer's disease (AD). All the information in this article was collated from selected research papers from online scientific databases, such as PubMed, Web of Science, and Scopus. The aim of this article is to convey the potential of herbal remedies for the prospect management of Alzheimer's and related diseases. Herbal remedies may be useful in the discovery and advancement of drugs, thus extending new leads for neurodegenerative diseases such as AD. Nanocarriers play a significant role in delivering herbal medicaments to a specific target. Therefore, many drugs have been described for the management of age-linked complaints such as dementia, AD, and the like. Several phytochemicals are capable of managing AD, but their therapeutic claims are restricted due to their lower solubility and metabolism. These limitations of natural therapeutics can be overcome by using a targeted nanocarrier system. This article will provide the primitive remedies as well as the development of herbal remedies for AD management.
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Affiliation(s)
- Anurag Kumar Singh
- Centre of Experimental Medicine & Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Sachchida Nand Rai
- Centre of Biotechnology, University of Allahabad, Prayagraj 211002, India
| | - Anand Maurya
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Gaurav Mishra
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Rajendra Awasthi
- Amity Institute of Pharmacy, Amity University Uttar Pradesh, Noida 201303, Uttar Pradesh, India
| | - Anshul Shakya
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Assam 786004, Dibrugarh, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, Kuala Lumpur 57000, Malaysia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney (UTS), Ultimo, New South Wales, Australia
| | - Emanuel Vamanu
- Faculty of Biotechnology, University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 1 District, 011464, Bucharest, Romania
| | - Sushil Kumar Chaudhary
- Faculty of Pharmacy, DIT University, Mussoorie-Diversion Road, Makkawala, Dehradun 248 009, Uttarakhand, India
| | - M. P. Singh
- Centre of Biotechnology, University of Allahabad, Prayagraj 211002, India
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17
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Ghassab-Abdollahi N, Mobasseri K, Dehghani Ahmadabad A, Nadrian H, Mirghafourvand M. The effects of Huperzine A on dementia and mild cognitive impairment: An overview of systematic reviews. Phytother Res 2021; 35:4971-4987. [PMID: 33851462 DOI: 10.1002/ptr.7126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/03/2021] [Accepted: 03/30/2021] [Indexed: 01/23/2023]
Abstract
Cognitive impairments are a part of the neurocognitive disorders which deteriorate the normal cognitive function. An overview of systematic reviews (SRs) was conducted to summarize the findings of SRs and meta-analyses on the effectiveness of Huperzine A (Hup A) in dementia and mild cognitive impairment (MCI). A literature search was conducted since inception to December 2020. We used the AMSTAR tool to assess the methodological quality of SRs. The quality of evidence of primary studies was evaluated according to the SRs authors' assessment. Six SRs met our inclusion criteria. The results showed that Hup A has beneficial effects on cognitive function and Activities of Daily Living (ADLs) in Alzheimer's disease, but in vascular dementia and MCI, there was little or no evidence to conclusion. There is insufficient evidence of the effectiveness of Hup A on the quality of life and global clinical assessment. None of the SRs reported any serious side effects. Despite the promising effects of Hup A on cognition and ADLs, there is insufficient evidence to support the effectiveness of Hup A in cognitive impairments due to the high heterogeneity of SRs and the low quality of primary studies. High-quality, large multicenter RCTs with long-term follow-up in different settings are warranted.
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Affiliation(s)
- Nafiseh Ghassab-Abdollahi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Health Education & Promotion, School of Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khorshid Mobasseri
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Health Education & Promotion, School of Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Dehghani Ahmadabad
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Health Education & Promotion, School of Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Haidar Nadrian
- Social Determinants of Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mojgan Mirghafourvand
- Social Determinants of Health Research Center, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
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18
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Singhal M, Serna C, Kalaria D, Kalia YN. Effect of continuous and multi-phasic current profiles on the iontophoretic transport of pramipexole, rasagiline and huperzine A: Depicting temporal variation and biodistribution in the skin. Int J Pharm 2021; 599:120445. [PMID: 33675928 DOI: 10.1016/j.ijpharm.2021.120445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/23/2021] [Accepted: 02/26/2021] [Indexed: 01/07/2023]
Abstract
Transdermal iontophoresis is an interesting option for the non-invasive controlled delivery of therapeutic agents to treat neurodegenerative diseases. The current profile controls drug delivery kinetics and enables complex drug input profiles to be obtained. The aim of this study was to investigate the temporal variation in transport of pramipexole (PRA), rasagiline (RAS) and huperzine A (HUP) using continuous and multi-phasic current profiles by measuring cumulative permeation, transdermal flux and drug retention in the skin upon modulation of the applied current profile during a single experiment in vitro. Initial experiments with continuous current were conducted to establish a correlation between total delivery of PRA, RAS and HUP (i.e. sum of the cumulative permeation and skin deposition) and the amount of charge transferred. Subsequent experiments with multi-phasic current profiles, confirmed that the relationship between amounts of charge transferred and total delivery was able to predict the total delivery of each drug. Experimental values were within ± 15% of the predicted values. Current density and duration of current application were also shown to have a significant impact on the skin biodistribution of PRA. These results also provide insight into the rate of formation of iontophoretic drug reservoirs in the skin.
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Affiliation(s)
- Mayank Singhal
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1 rue Michel Servet, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - 1 Rue Michel Servet, 1211 Geneva, Switzerland
| | - César Serna
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1 rue Michel Servet, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - 1 Rue Michel Servet, 1211 Geneva, Switzerland
| | - Dhaval Kalaria
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1 rue Michel Servet, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - 1 Rue Michel Servet, 1211 Geneva, Switzerland
| | - Yogeshvar N Kalia
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1 rue Michel Servet, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - 1 Rue Michel Servet, 1211 Geneva, Switzerland.
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19
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Titov AA, Kobzev MS, Catto M, Candia MD, Gambacorta N, Denora N, Pisani L, Nicolotti O, Borisova TN, Varlamov AV, Voskressensky LG, Altomare CD. Away from Flatness: Unprecedented Nitrogen-Bridged Cyclopenta[ a]indene Derivatives as Novel Anti-Alzheimer Multitarget Agents. ACS Chem Neurosci 2021; 12:340-353. [PMID: 33395258 DOI: 10.1021/acschemneuro.0c00706] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Nature-inspired, bridged polycyclic molecules share low similarity with currently available drugs, containing preferentially planar and/or achiral moieties. This "Escape from Flatland" scenario, aimed at exploring pharmacological properties of atypical molecular scaffolds, finds interest in synthetic routes leading to tridimensional-shaped molecules. Herein we report on the synthesis of N-bridged cyclopenta[a]indene derivatives, achieved through microwave-assisted thermal rearrangement of allene 3-benzazecines with high diastereoselectivity. The biological evaluation disclosed selective inhibition of human acetylcholinesterase or butyrylcholinesterase, depending on the substitution around the molecular core, which was rationalized by means of docking simulations. The most potent BChE inhibitor 31 was effective in neuroprotection from glutamatergic excitotoxicity and displayed low intrinsic cytotoxicity and good brain penetration. Overall, compound 31 and its close congeners 34 and 35 acted as multitarget agents addressing different biological events involved in neurodegeneration, particularly in the progression of Alzheimer's disease.
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Affiliation(s)
- Alexander A. Titov
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russian Federation
| | - Maxim S. Kobzev
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russian Federation
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Modesto de Candia
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Nicola Gambacorta
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Nunzio Denora
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Leonardo Pisani
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Orazio Nicolotti
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Tatiana N. Borisova
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russian Federation
| | - Alexey V. Varlamov
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russian Federation
| | - Leonid G. Voskressensky
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russian Federation
| | - Cosimo D. Altomare
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
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20
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Wahid M, Ali A, Saqib F, Aleem A, Bibi S, Afzal K, Ali A, Baig A, Khan SA, Bin Asad MHH. Pharmacological exploration of traditional plants for the treatment of neurodegenerative disorders. Phytother Res 2020; 34:3089-3112. [DOI: 10.1002/ptr.6742] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Muqeet Wahid
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
- Institute of Food Science and Nutrition Bahauddin Zakariya University Multan Pakistan
| | - Anam Ali
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Fatima Saqib
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Ambreen Aleem
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Sumbal Bibi
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Khurram Afzal
- Institute of Food Science and Nutrition Bahauddin Zakariya University Multan Pakistan
| | - Atif Ali
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Ayesha Baig
- Department of Biotechnology COMSATS University Islamabad Abbottabad Pakistan
| | - Shujaat Ali Khan
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Muhammad Hassham Hassan Bin Asad
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
- Department of Genetics, Institute of Fundamental Medicine and Biology Kazan Federal University Kazan Russia
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21
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Pottoo FH, Sharma S, Javed MN, Barkat MA, Harshita, Alam MS, Naim MJ, Alam O, Ansari MA, Barreto GE, Ashraf GM. Lipid-based nanoformulations in the treatment of neurological disorders. Drug Metab Rev 2020; 52:185-204. [PMID: 32116044 DOI: 10.1080/03602532.2020.1726942] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Faheem Hyder Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Shrestha Sharma
- Department of Pharmacy, School of Medical and Allied Sciences, K.R. Mangalam University, Gurgaon, India
| | - Md. Noushad Javed
- Department of Pharmaceutics, School of Pharmaceutical Sciences and Research, Jamia Hamdard University, New Delhi, India
- School of Pharmaceutical Sciences, Apeejay Stya University, Gurugram, India
| | - Md. Abul Barkat
- Department of Pharmacy, School of Medical and Allied Sciences, K.R. Mangalam University, Gurgaon, India
| | - Harshita
- Department of Pharmacy, School of Medical and Allied Sciences, K.R. Mangalam University, Gurgaon, India
| | - Md. Sabir Alam
- Department of Pharmacy, School of Medical and Allied Sciences, K.R. Mangalam University, Gurgaon, India
| | - Mohd. Javed Naim
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences and Research, Jamia Hamdard University, New Delhi, India
| | - Ozair Alam
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences and Research, Jamia Hamdard University, New Delhi, India
| | - Mohammad Azam Ansari
- Department of Epidemic Disease Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - George E. Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
- Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Ghulam Md. Ashraf
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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22
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Agrawal M, Saraf S, Saraf S, Dubey SK, Puri A, Patel RJ, Ajazuddin, Ravichandiran V, Murty US, Alexander A. Recent strategies and advances in the fabrication of nano lipid carriers and their application towards brain targeting. J Control Release 2020; 321:372-415. [PMID: 32061621 DOI: 10.1016/j.jconrel.2020.02.020] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 12/20/2022]
Abstract
In last two decades, the lipid nanocarriers have been extensively investigated for their drug targeting efficiency towards the critical areas of the human body like CNS, cardiac region, tumor cells, etc. Owing to the flexibility and biocompatibility, the lipid-based nanocarriers, including nanoemulsion, liposomes, SLN, NLC etc. have gained much attention among various other nanocarrier systems for brain targeting of bioactives. Across different lipid nanocarriers, NLC remains to be the safest, stable, biocompatible and cost-effective drug carrier system with high encapsulation efficiency. Drug delivery to the brain always remains a challenging issue for scientists due to the complex structure and various barrier mechanisms surrounding the brain. The application of a suitable nanocarrier system and the use of any alternative route of drug administration like nose-to-brain drug delivery could overcome the hurdle and improves the therapeutic efficiency of CNS acting drugs thereof. NLC, a second-generation lipid nanocarrier, upsurges the drug permeation across the BBB due to its unique structural properties. The biocompatible lipid matrix and nano-size make it an ideal drug carrier for brain targeting. It offers many advantages over other drug carrier systems, including ease of manufacturing and scale-up to industrial level, higher drug targeting, high drug loading, control drug release, compatibility with a wide range of drug substances, non-toxic and non-irritant behavior. This review highlights recent progresses towards the development of NLC for brain targeting of bioactives with particular reference to its surface modifications, formulations aspects, pharmacokinetic behavior and efficacy towards the treatment of various neurological disorders like AD, PD, schizophrenia, epilepsy, brain cancer, CNS infection (viral and fungal), multiple sclerosis, cerebral ischemia, and cerebral malaria. This work describes in detail the role and application of NLC, along with its different fabrication techniques and associated limitations. Specific emphasis is given to compile a summary and graphical data on the area explored by scientists and researchers worldwide towards the treatment of neurological disorders with or without NLC. The article also highlights a brief insight into two prime approaches for brain targeting, including drug delivery across BBB and direct nose-to-brain drug delivery along with the current global status of specific neurological disorders.
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Affiliation(s)
- Mukta Agrawal
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Swarnlata Saraf
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India
| | - Shailendra Saraf
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India
| | - Sunil Kumar Dubey
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS-PILANI), Pilani Campus, Rajasthan, India
| | - Anu Puri
- RNA Structure and Design Section, RNA Biology Laboratory (RBL), Center for Cancer Research, NCI-Frederick, NIH, Frederick, USA
| | - Ravish J Patel
- Ramanbhai Patel College of Pharmacy (RPCP), Charotar University of Sciences and Technology (CHARUSAT), Gujarat 388421, India
| | - Ajazuddin
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - V Ravichandiran
- National Institute of Pharmaceutical Education and Research (NIPER-Kolkata), Ministry of Chemicals & Fertilizers, Govt. of India, Chunilal Bhawan 168, Maniktala Main Road, Kolkata 700054, India
| | - Upadhyayula Suryanarayana Murty
- National Institute of Pharmaceutical Education and Research (NIPER-Guwahati), Department of Pharmaceuticals, Ministry of Chemicals & Fertilizers, Govt. of India, NH 37, NITS Mirza, Kamrup, 781125 Guwahati, Assam, India
| | - Amit Alexander
- National Institute of Pharmaceutical Education and Research (NIPER-Guwahati), Department of Pharmaceuticals, Ministry of Chemicals & Fertilizers, Govt. of India, NH 37, NITS Mirza, Kamrup, 781125 Guwahati, Assam, India.
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Jiang Y, Liu C, Zhai W, Zhuang N, Han T, Ding Z. The Optimization Design Of Lactoferrin Loaded HupA Nanoemulsion For Targeted Drug Transport Via Intranasal Route. Int J Nanomedicine 2019; 14:9217-9234. [PMID: 31819426 PMCID: PMC6885571 DOI: 10.2147/ijn.s214657] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 10/21/2019] [Indexed: 01/11/2023] Open
Abstract
Background Huperzine A (HupA) is a selective acetylcholinesterase inhibitor used to treat Alzheimer's disease. The existing dosage of HupA lacks brain selectivity and can cause serious side effects in the gastrointestinal and peripheral cholinergic systems. Purpose The aim of this study was to develop and characterize a HupA nanoemulsion (NE) and a targeted HupA-NE modified with lactoferrin (Lf) for intranasal administration. Methods The NE was formulated using pseudo-ternary phase diagrams and optimized with response surface methodology. Particle size distribution and zeta potential were evaluated, and transmission electron microscopy was performed. We investigated the transport mechanisms of HupA-NEs into hCMEC/D3 cells, an in vitro model of the blood-brain barrier. HupA-NE, Lf-HupA-NE, and HupA solution were intranasally administered to rats to investigate the brain-targeting effects of these formulations. A drug targeting index (DTI) was calculated to determine brain-targeting efficiency. Results Optimized HupA-NE had a particle size of 15.24±0.67 nm, polydispersity index (PDI) of 0.128±0.025, and zeta potential of -4.48±0.97 mV. The composition of the optimized HupA-NE was 3.00% isopropyl myristate (IPM), 3.81% Capryol 90, and 40% Cremophor EL + Labrasol. NEs, particularly Lf-HupA-NE, were taken up into hCMEC/D3 cells to a greater extent than pure drug alone. Western blot analysis showed that hCMEC/D3 cells contained P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), and multidrug resistance associated protein 1 (MRP1) transporters. The likely mechanisms resulting in higher NE transport to the brain were uptake by specific transporters and transcytosis. In vivo, intranasal Lf-HupA-NE significantly enhanced drug delivery to the brain compared to HupA-NE, which was confirmed by differences in pharmacokinetic parameters. The DTI of Lf-HupA-NE (3.2±0.75) demonstrated brain targeting, and the area under the curve for Lf-HupA-NE was significantly higher than that for HupA-NE. Conclusion Lf-HupA-NE is a promising nasal drug delivery carrier for facilitating delivery of HupA to the central nervous system.
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Affiliation(s)
- Yueyao Jiang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Chenqi Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Wanchen Zhai
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Ning Zhuang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Tengfei Han
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Zhiying Ding
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, People's Republic of China
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Burtea A, DeForest J, Li X, Rychnovsky SD. Total Synthesis of (-)-Himeradine A. Angew Chem Int Ed Engl 2019; 58:16193-16197. [PMID: 31491044 DOI: 10.1002/anie.201910129] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Indexed: 01/09/2023]
Abstract
(-)-Himeradine A is a complex lycopodium alkaloid with seven rings and ten stereogenic centers that shows anticancer activity against lymphoma L1210 cells. A total synthesis has been developed that builds off prior work on (+)-fastigiatine. A 2,4,6-trisubstitited piperidine ring forms the core of the quinolizidine segment, and was prepared by diastereoselective reduction of a pyridine and classic resolution of an intermediate. The remaining secondary amine was introduced with a catalyst-controlled Overman rearrangement. The piperidine segment was coupled in a B-alkyl Suzuki reaction with a bicyclic bromoenone, which was a key intermediate for the synthesis of (+)-fastigiatine. The final transformation featured a transannular Mannich reaction and cyclization to complete the quinolizidine. Five bonds and four new rings were generated in this one-pot procedure. (-)-Himeradine A was prepared in 17 steps in the longest linear sequence.
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Affiliation(s)
- Alexander Burtea
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, Irvine, CA, 92697, USA
| | - Jacob DeForest
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, Irvine, CA, 92697, USA
| | - Xinting Li
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, Irvine, CA, 92697, USA
| | - Scott D Rychnovsky
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, Irvine, CA, 92697, USA
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In vitro and in silico analysis of novel astaxanthin-s-allyl cysteine as an inhibitor of butyrylcholinesterase and various globular forms of acetylcholinesterases. Int J Biol Macromol 2019; 140:1147-1157. [DOI: 10.1016/j.ijbiomac.2019.08.168] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/02/2019] [Accepted: 08/19/2019] [Indexed: 12/30/2022]
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Burtea A, DeForest J, Li X, Rychnovsky SD. Total Synthesis of (−)‐Himeradine A. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Alexander Burtea
- Department of Chemistry1102 Natural Sciences IIUniversity of California, Irvine Irvine CA 92697 USA
| | - Jacob DeForest
- Department of Chemistry1102 Natural Sciences IIUniversity of California, Irvine Irvine CA 92697 USA
| | - Xinting Li
- Department of Chemistry1102 Natural Sciences IIUniversity of California, Irvine Irvine CA 92697 USA
| | - Scott D. Rychnovsky
- Department of Chemistry1102 Natural Sciences IIUniversity of California, Irvine Irvine CA 92697 USA
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Tang Y, Li N, Zou Y, Ai Y, Ma GL, Osman EEA, Xiong J, Li J, Jin ZX, Hu JF. LC-MS guided isolation and dereplication of Lycopodium alkaloids from Lycopodium cernuum var. sikkimense of different geographical origins. PHYTOCHEMISTRY 2019; 160:25-30. [PMID: 30682681 DOI: 10.1016/j.phytochem.2019.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/28/2018] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Lycopodium alkaloids (LAs) are the characteristic metabolites of club mosses. Chemical differences often exist in different specimens of a single plant species collected from different geographic origins. In this study, a preliminary LC-MS detection and dereplication analyses of alkaloidal constituents of Lycopodium cernuum var. sikkimense (Müll. Hal.) C.B. Clarke (LCVS2) collected from Fujian province led to the isolation and characterization of three undescribed LAs, lycocernuskines A-C, and six known cernuane-type LAs. The known compounds were previously isolated from the same plant species (LCVS1) collected from Chongqing, and so their dereplication in LCVS2 was accomplished based on their retention times (tR) and the quasi-molecular ion peaks in the LC-MS fingerprint. Chemical structures were identified by spectroscopic methods, single-crystal X-ray diffraction analysis, and electronic circular dichroism calculations. Lycocernuskines A and B are the first two examples of C-12 hydroxylated phlegmarane-type LAs bearing a nitrone residue at the quinoline ring. The isolates were evaluated for their anti-AChE and neuroprotective effects.
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Affiliation(s)
- Yu Tang
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, PR China
| | - Na Li
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, 318000, Zhejiang, PR China
| | - Yike Zou
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yanran Ai
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA, 02138, USA
| | - Guang-Lei Ma
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, PR China
| | - Ezzat E A Osman
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, PR China; Laboratory of Medicinal Chemistry, Theodor Bilharz Research Institute, Kornaish El-Nile St., Giza, 12411, Egypt
| | - Juan Xiong
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, PR China
| | - Junmin Li
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, 318000, Zhejiang, PR China.
| | - Ze-Xin Jin
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, 318000, Zhejiang, PR China
| | - Jin-Feng Hu
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, 318000, Zhejiang, PR China.
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Synthesis and insecticidal bioactivities of 2,3-dihydroimidazo[1,2-a]pyridin-5(1H)-one derivatives. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Liang J, Li J, Jia R, Wang Y, Wu R, Zhang H, Hang L, Xu Y. Identification of the optimal cognitive drugs among Alzheimer's disease: a Bayesian meta-analytic review. Clin Interv Aging 2018; 13:2061-2073. [PMID: 30425461 PMCID: PMC6201988 DOI: 10.2147/cia.s184968] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
PURPOSE The increasing prevalence of Alzheimer's disease (AD) demands more effective drugs, which are still unclear. The aim of this study is to compare the effectiveness of six drugs, such as donepezil, rivastigmine, galantamine, memantine, huperzine-A, and tacrine, in senior AD patients and identify the most effective one to improve patients' cognitive function. METHODS A system of search strategies was used to identify relevant studies including randomized controlled trials and clinical controlled trials evaluating the efficacy of six drugs in patients with AD. We updated relevant studies that were published before March 2018 as full-text articles. Using Bayesian network meta-analysis (NMA), we ranked cognitive ability objectively based on Mini-Mental State Examination (MMSE). Pairwise and NMAs were sequentially performed for the efficacy of drugs compared to each drug or control group through the trials included. RESULTS Among the 35 trials included, no obvious heterogeneity (I 2=0.0%, P=0.583) was revealed according to the pooled data for cognition in NMA and the mean difference (MD) of memantine (MD=1.7, 95% CI: 0.73, 2.8) showed that the memantine was significantly efficacious in the treatment group in terms of MMSE. Followed by galantamine, huperzine-A, rivastigmine, tacrine, and donepezil. CONCLUSION As the first NMA comparing the major drugs in market for AD, our study suggests that memantine might have a more significant benefit on cognition than other five drugs available.
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Affiliation(s)
- Jinghong Liang
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
| | - Jiayu Li
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
| | - Ruixia Jia
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
| | - Yingquan Wang
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
| | - Rongkun Wu
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
| | - Hongbo Zhang
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
| | - Lei Hang
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
| | - Yong Xu
- Department of Child Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China,
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Choo CY, Mohd Nor NA, Sahidan N, A. L, Hitotsuyanagi Y. Biomarkers identification of Lycopodiaceae and Huperziaceae species from peninsular Malaysia with HPLC chromatographic profiling and partial least square analysis. SEPARATION SCIENCE PLUS 2018. [DOI: 10.1002/sscp.201800085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chee-Yan Choo
- MedChem Herbal Research Group, Faculty of Pharmacy, Universiti Teknologi MARA Selangor Branch; Puncak Alam Campus; Selangor Malaysia
| | - Nurul Ain Mohd Nor
- MedChem Herbal Research Group, Faculty of Pharmacy, Universiti Teknologi MARA Selangor Branch; Puncak Alam Campus; Selangor Malaysia
| | - NorShahidah Sahidan
- MedChem Herbal Research Group, Faculty of Pharmacy, Universiti Teknologi MARA Selangor Branch; Puncak Alam Campus; Selangor Malaysia
| | - Latiff A.
- Faculty of Sciences and Technology; Universiti Kebangsaan Malaysia; Bangi Malaysia
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Akintunde JK, Irondi AE, Ajani EO, Olayemi TV. Neuroprotective effect of dietary black seed flour on key enzymes linked with neuronal signaling molecules in rats exposed to mixture of environmental metals. J Food Biochem 2018. [DOI: 10.1111/jfbc.12573] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- J. K. Akintunde
- Toxicology and Safety Unit, Faculty of Public Health, College of Medicine, Department of Environmental Health Sciences; University of Ibadan; Inadan Nigeria
- Department of Biochemistry, School of Basic Medical Sciences, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
| | - A. E. Irondi
- Department of Biochemistry, School of Basic Medical Sciences, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
| | - E. O. Ajani
- Department of Biochemistry, School of Basic Medical Sciences, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
| | - T. V. Olayemi
- Chemistry Unit, Department of Chemical, Physical and Geological, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
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Liu Q, Wang SC, Ding K. Research advances in the treatment of Alzheimer's disease with polysaccharides from traditional Chinese medicine. Chin J Nat Med 2018; 15:641-652. [PMID: 28991525 DOI: 10.1016/s1875-5364(17)30093-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 12/19/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by the loss of patients' memory and their cognitive abilities and the mechanism is not completely clear. Although a variety of drugs have been approved for the AD treatment, substances which can prevent and cure AD are still in great need. The effect of polysaccharides from traditional Chinese medicine (TCM) on anti-AD has gained great progress and attained more and more attention in recent years. In this review, research advances in TCM-polysaccharides on AD made in this decade are summarized.
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Affiliation(s)
- Qin Liu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Shun-Chun Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Kan Ding
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
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Sahoo AK, Dandapat J, Dash UC, Kanhar S. Features and outcomes of drugs for combination therapy as multi-targets strategy to combat Alzheimer's disease. JOURNAL OF ETHNOPHARMACOLOGY 2018; 215:42-73. [PMID: 29248451 DOI: 10.1016/j.jep.2017.12.015] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alzheimer's disease (AD), a deleterious neurodegenerative disorder that impairs memory, cognitive functions and may lead to dementia in late stage of life. The pathogenic cause of AD remains incompletely understood and FDA approved drugs are partial inhibitors rather than curative. Most of drugs are synthetic or natural products as galanthamine is an alkaloid obtained from Galanthus spp. Huperzine A, an alkaloid found in Huperzia spp., gingkolides a diterpenoids from Gingko biloba and many ethnobotanicals like Withania somnifera (L.) Dunal., Physostigma venenosum Balf., Bacopa monnieri (L.) Wettst., Centella asiatica (L.) Urb. have been used by traditional Indian, Chinese, and European system of medicines in AD. Clinical significance opioid alkaloid in Papaver somniferum has shown another dimension to this study. Over exploitation of medicinal plants with limited bioactive principles has provided templates to design synthetic drugs in AD e.g. rivastigmine, phenserine, eptastigmine based on chemical structure of physostigmine of Physostigma venenosum Balf. Even ZT-1 a prodrug of Hup A and memogain a prodrug of galantamine has achieved new direction in drug development in AD. All these first-line cholinesterase-inhibitors are used as symptomatic treatments in AD. Single modality of "One-molecule-one-target" strategy for treating AD has failed and so future therapies on "Combination-drugs-multi-targets" strategy (CDMT) will need to address multiple aspects to block the progression of pathogenesis of AD. Besides, cholinergic and amyloid drugs, in this article we summarize proteinopathy-based drugs as AD therapeutics from a variety of biological sources. In this review, an attempt has been made to elucidate the molecular mode of action of various plant products, and synthetic drugs investigated in various preclinical and clinical tests in AD. It also discusses current attempts to formulate a comprehensive CDMT strategy to counter complex pathogenesis in AD. MATERIALS AND METHODS Information were collected from classical books on medicinal plants, pharmacopoeias and scientific databases like PubMed, Scopus, GoogleScholar, Web of Science and electronic searches were performed using Cochrane Library, Medline and EMBASE. Also published scientific literatures from Elsevier, Taylor and Francis, Springer, ACS, Wiley publishers and reports by government bodies and documentations were assessed. RESULTS 60 no. of natural and synthetic drugs have been studied with their significant bioactivities. A decision matrix designed for evaluation of drugs for considering to the hypothetic "CDMT" strategy in AD. We have introduced the scoring pattern of individual drugs and based on scoring pattern, drugs that fall within the scoring range of 18-25 are considered in the proposed CDMT. It also highlights the importance of available natural products and in future those drugs may be considered in CDMT along with the qualified synthetic drugs. CONCLUSION A successful validation of the CDMT strategy may open up a debate on health care reform to explore other possibilities of combination therapy. In doing so, it should focus on clinical and molecular relationships between AD and CDMT. A better understanding of these relationships could inform and impact future development of AD-directed treatment strategies. This strategy also involves in reducing costs in treatment phases which will be affordable to a common man suffering from AD.
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Affiliation(s)
- Atish Kumar Sahoo
- Phytotherapy Research Lab., Medicinal & Aromatic Plant Division, Regional Plant Resource Centre, Forest & Environment Department, Govt. of Odisha, Nayapalli, Bhubaneswar 751015, India.
| | - Jagnehswar Dandapat
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar 751004, India
| | - Umesh Chandra Dash
- Phytotherapy Research Lab., Medicinal & Aromatic Plant Division, Regional Plant Resource Centre, Forest & Environment Department, Govt. of Odisha, Nayapalli, Bhubaneswar 751015, India
| | - Satish Kanhar
- Phytotherapy Research Lab., Medicinal & Aromatic Plant Division, Regional Plant Resource Centre, Forest & Environment Department, Govt. of Odisha, Nayapalli, Bhubaneswar 751015, India
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Visualization of Altered Hippocampal Connectivity in an Animal Model of Alzheimer's Disease. Mol Neurobiol 2018; 55:7886-7899. [PMID: 29488134 PMCID: PMC6132739 DOI: 10.1007/s12035-018-0918-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 01/21/2018] [Indexed: 12/22/2022]
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by cognitive decline and neurodegeneration in the hippocampus. Despite the pathological importance of the hippocampal degeneration in AD, little topographical evidence exists of impaired hippocampal connectivity in patients with AD. To investigate the anatomical connections of the hippocampus, we injected the neurotracer 1,1′-dioctadecyl-3,3,3′3,3′-tetramethyl-indocarbocyanine perchlorate (DiI) into the hippocampi of 5XFAD mice, which were used as an animal model of AD. In wild-type controls, DiI-containing cells were found in the entorhinal cortex, medial septum, locus coeruleus, dorsal raphe, substantia nigra pars compacta, and olfactory bulb. Hippocampal inputs were decreased in multiple brain regions in the 5XFAD mice compared to wild-type littermate mice. These results are the first to reveal alterations at the cellular level in hippocampal connectivity in the brains of 5XFAD mice. These results suggest that anatomical mapping of hippocampal connectivity will elucidate new pathogenic mechanisms and therapeutic targets for AD treatment.
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Strauss V, Rey Moreno MC, Vogt J, Dammann M, Schneider S, Gröters S, van Ravenzwaay B. Acetylcholinesterase measurement in various brain regions and muscles of juvenile, adolescent, and adult rats. Toxicol Mech Methods 2017; 27:666-676. [DOI: 10.1080/15376516.2017.1349849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Volker Strauss
- Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | | | - Jeanette Vogt
- Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Martina Dammann
- Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Steffen Schneider
- Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Sibylle Gröters
- Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
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Momtazi-Borojeni AA, Sadeghi-Aliabadi H, Rabbani M, Ghannadi A, Abdollahi E. Cognitive enhancing of pineapple extract and juice in scopolamine-induced amnesia in mice. Res Pharm Sci 2017. [PMID: 28626484 PMCID: PMC5465835 DOI: 10.4103/1735-5362.207198] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The objective of the present study was to evaluate the cognitive enhancing of pineapple juice and ethanolic extract in scopolamine-induced cognitive deficit mice. The ethanolic extract of pineapple (Ananas comosus (L.) Merr.) was prepared by maceration method and its juice was obtained by a homogenizer. Object recognition task was used to evaluate the mice memory. Exploration time in the first and second trial was recorded. The differences in exploration time between a familiar and a novel object in the second trial were taken as a memory index. Animals were randomly assigned into 15 groups of 6 each including: control group (normal saline + vehicle), positive control group (scopolamine + rivastigmine), seven experimental groups (received scopolamine alone or scopolamine + ethanolic extract of pineapple in different doses), six other experimental groups were treated by ethanolic extract or juice of pineapple in different doses. Scopolamine (100 μL, 1 mg/kg, i.p.) and pineapple juice or extract (50, 75 and 100 mg/kg, i.p.) were administered 40 and 30 min before starting the second trial in the experimental groups. Object discrimination was impaired after scopolamine administration. Results showed that juice and ethanolic extract of pineapple significantly restored object recognition ability in mice treated with scopolamine. These finding suggested that pineapple had a protective role against scopolamine-induced amnesia, indicating its ability in management of cognitive disorders.
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Affiliation(s)
- Amir Abbas Momtazi-Borojeni
- Student Research Committee, Nanotechnology Research Centre, Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, I.R. Iran
| | - Hojjat Sadeghi-Aliabadi
- Department of Pharmaceutical Chemistry and Isfahan Pharmaceutical Sciences Research Centre, School of Pharmacy and Pharmaceutical Sciences Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Mohammed Rabbani
- Department of Pharmacology and Isfahan Pharmaceutical Sciences Research Centre, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Alireza Ghannadi
- Department of Pharmacognosy and Isfahan Pharmaceutical Sciences Research Centre, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Elham Abdollahi
- Department of Medical Immunology and Allergy, School of Medicine, Mashhad University of Medical Sciences, Mashhad, I.R. Iran
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Saravanan K, Kalaiarasi C, Kumaradhas P. Understanding the conformational flexibility and electrostatic properties of curcumin in the active site of rhAChE via molecular docking, molecular dynamics, and charge density analysis. J Biomol Struct Dyn 2017; 35:3627-3647. [DOI: 10.1080/07391102.2016.1264891] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kandasamy Saravanan
- Laboratory of Biocrystallography and Computational Molecular Biology, Department of Physics, Periyar University, Salem, 636 011, India
| | - Chinnasamy Kalaiarasi
- Laboratory of Biocrystallography and Computational Molecular Biology, Department of Physics, Periyar University, Salem, 636 011, India
| | - Poomani Kumaradhas
- Laboratory of Biocrystallography and Computational Molecular Biology, Department of Physics, Periyar University, Salem, 636 011, India
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Herbal Medicine for the Treatment of Vascular Dementia: An Overview of Scientific Evidence. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:7293626. [PMID: 28115971 PMCID: PMC5223013 DOI: 10.1155/2016/7293626] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 10/31/2016] [Indexed: 12/14/2022]
Abstract
Dementia is a leading cause of mental and physical disability. Vascular dementia (VaD) is the second most common cause of dementia after Alzheimer's disease (AD) constituting 10–15% of the dementia population. Currently there are no approved pharmaceutical options for VaD and the conventional anti-AD therapies provide only modest, short-term relief of symptoms associated with VaD. Herbal medicines have been used for the management of dementia-like symptoms for centuries and may provide viable therapies for VaD due to their multicomponent and multitarget approach. This review is designed to provide an updated overview on the current status of herbal medicine research, with an emphasis on Chinese herbal medicine, for the treatment of VaD or dementia. A case study is also provided to demonstrate the development process of a novel standardized complex herbal formulation for VaD. The article reveals some preliminary evidence to support the use of single and complex herbal preparations for VaD and dementia. Multiple issues in relation to clinical and preclinical research have been identified and future research directions are discussed.
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Time Course, Behavioral Safety, and Protective Efficacy of Centrally Active Reversible Acetylcholinesterase Inhibitors in Cynomolgus Macaques. Neurochem Res 2016; 42:1962-1971. [DOI: 10.1007/s11064-016-2120-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/16/2016] [Accepted: 11/21/2016] [Indexed: 01/18/2023]
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Wong JC, Dutton SBB, Collins SD, Schachter S, Escayg A. Huperzine A Provides Robust and Sustained Protection against Induced Seizures in Scn1a Mutant Mice. Front Pharmacol 2016; 7:357. [PMID: 27799911 PMCID: PMC5065986 DOI: 10.3389/fphar.2016.00357] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 09/20/2016] [Indexed: 01/21/2023] Open
Abstract
De novo loss-of-function mutations in the voltage-gated sodium channel (VGSC) SCN1A (encoding Nav1.1) are the main cause of Dravet syndrome (DS), a catastrophic early-life encephalopathy associated with prolonged and recurrent early-life febrile seizures (FSs), refractory afebrile epilepsy, cognitive and behavioral deficits, and a 15–20% mortality rate. SCN1A mutations also lead to genetic epilepsy with febrile seizures plus (GEFS+), which is an inherited disorder characterized by early-life FSs and the development of a range of adult epilepsy subtypes. Current antiepileptic drugs often fail to protect against the severe seizures and behavioral and cognitive deficits found in patients with SCN1A mutations. To address the need for more efficacious treatments for SCN1A-derived epilepsies, we evaluated the therapeutic potential of Huperzine A, a naturally occurring reversible acetylcholinesterase inhibitor. In CF1 mice, Hup A (0.56 or 1 mg/kg) was found to confer protection against 6 Hz-, pentylenetetrazole (PTZ)-, and maximal electroshock (MES)-induced seizures. Robust protection against 6 Hz-, MES-, and hyperthermia-induced seizures was also achieved following Hup A administration in mouse models of DS (Scn1a+/−) and GEFS+ (Scn1aRH/+). Furthermore, Hup A-mediated seizure protection was sustained during 3 weeks of daily injections in Scn1aRH/+ mutants. Finally, we determined that muscarinic and GABAA receptors play a role in Hup A-mediated seizure protection. These findings indicate that Hup A might provide a novel therapeutic strategy for increasing seizure resistance in DS and GEFS+, and more broadly, in other forms of refractory epilepsy.
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Affiliation(s)
- Jennifer C Wong
- Department of Human Genetics, Emory University Atlanta, GA, USA
| | - Stacey B B Dutton
- Department of Human Genetics, Emory UniversityAtlanta, GA, USA; Department of Biology, Agnes Scott CollegeAtlanta, GA, USA
| | | | - Steven Schachter
- Department of Neurology, Harvard Medical School, Beth Israel Deaconess Medical Center, and Massachusetts General Hospital Boston, MA, USA
| | - Andrew Escayg
- Department of Human Genetics, Emory University Atlanta, GA, USA
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Urra J, Blohberger J, Tiszavari M, Mayerhofer A, Lara HE. In vivo blockade of acetylcholinesterase increases intraovarian acetylcholine and enhances follicular development and fertility in the rat. Sci Rep 2016; 6:30129. [PMID: 27440195 PMCID: PMC4954984 DOI: 10.1038/srep30129] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 06/27/2016] [Indexed: 12/17/2022] Open
Abstract
Growth and differentiation of ovarian follicles are regulated by systemic and local factors, which may include acetylcholine (ACh). Granulosa cells (GCs) of growing follicles and luteal cells produce ACh and in cultured GCs it exerts trophic actions via muscarinic receptors. However, such actions were not studied in vivo. After having established that rat ovarian GCs and luteal cells express the ACh-metabolizing enzyme ACh esterase (AChE), we examined the consequences of local application of an AChE inhibitor, huperzine A (HupA), by osmotic minipump delivery into the ovarian bursa of hemiovariectomized rats. Saline was used in the control group. Local delivery of HupA for 4 weeks increased ovarian ACh content. Estrus cyclicity was not changed indicating a locally restricted range of HupA action. The number of primordial and primary follicles was unaffected, but small secondary follicles significantly increased in the HupA group. Furthermore, a significant increase in the number of corpora lutea suggested increased ovulatory events. In support, as shown upon mating, HupA-treated females had significantly increased implantation sites and more pups. Thus the data are in support of a trophic role of ACh in follicular development and ovulation and point to an important role of ACh in female fertility.
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Affiliation(s)
- Javier Urra
- Laboratory of Neurobiochemistry, Faculty of Chemistry and Pharmaceutical Sciences, Universidad de Chile, 8380492 Independencia, Santiago, Chile
| | - Jan Blohberger
- BMC, Cell Biology, Anatomy III, Ludwig-Maximilian-University (LMU), 82152 Planegg, Germany
| | - Michelle Tiszavari
- Laboratory of Neurobiochemistry, Faculty of Chemistry and Pharmaceutical Sciences, Universidad de Chile, 8380492 Independencia, Santiago, Chile
| | - Artur Mayerhofer
- BMC, Cell Biology, Anatomy III, Ludwig-Maximilian-University (LMU), 82152 Planegg, Germany
| | - Hernan E Lara
- Laboratory of Neurobiochemistry, Faculty of Chemistry and Pharmaceutical Sciences, Universidad de Chile, 8380492 Independencia, Santiago, Chile
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Munawar R, Mushtaq N, Arif S, Ahmed A, Akhtar S, Ansari S, Meer S, Saify ZS, Arif M. Synthesis of 9-Aminoacridine Derivatives as Anti-Alzheimer Agents. Am J Alzheimers Dis Other Demen 2016; 31:263-9. [PMID: 26385945 PMCID: PMC10852649 DOI: 10.1177/1533317515603115] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2024]
Abstract
In the present study, some 9-aminoacridine derivatives have been synthesized by condensation of 9-aminoacridine with substituted phenacyl, benzoyl, and benzyl halides (RM1-RM6). Compounds were investigated for acetylcholinesterase and butyrylcholinesterase inhibition potential, considering these enzymes playing a key role in Alzheimer's disease. All derivatives showed better inhibition of enzymes than the standard galantamine, whereas except RM4, all exhibit better results than tacrine, a well-known acridine derivative used for the treatment of Alzheimer's disease.
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Affiliation(s)
- Rabya Munawar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Nousheen Mushtaq
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Sadia Arif
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Ahsaan Ahmed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Shamim Akhtar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Sumaira Ansari
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Sadia Meer
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Zafar S Saify
- HEJ Research Institute of Chemical Sciences (ICCBS), University of Karachi, Karachi, Pakistan
| | - Muhammad Arif
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
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Chang KH, Chen IC, Lin HY, Chen HC, Lin CH, Lin TH, Weng YT, Chao CY, Wu YR, Lin JY, Lee-Chen GJ, Chen CM. The aqueous extract of Glycyrrhiza inflata can upregulate unfolded protein response-mediated chaperones to reduce tau misfolding in cell models of Alzheimer's disease. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:885-96. [PMID: 27013866 PMCID: PMC4778784 DOI: 10.2147/dddt.s96454] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background Alzheimer’s disease (AD) and several neurodegenerative disorders known as tauopathies are characterized by misfolding and aggregation of tau protein. Although several studies have suggested the potential of traditional Chinese medicine (TCM) as treatment for neurodegenerative diseases, the role of TCM in treating AD and tauopathies have not been well explored. Materials and methods Tau protein was coupled to the DsRed fluorophore by fusing a pro-aggregation mutant of repeat domain of tau (ΔK280 tauRD) with DsRed. The ΔK280 tauRD-DsRed fusion gene was then used to generate Tet-On 293 and SH-SY5Y cell clones as platforms to test the efficacy of 39 aqueous extracts of TCM in reducing tau misfolding and in neuroprotection. Results Seven TCM extracts demonstrated a significant reduction in tau misfolding and reactive oxidative species with low cytotoxicity in the ΔK280 tauRD-DsRed 293 cell model. Glycyrrhiza inflata and Panax ginseng also demonstrated the potential to improve neurite outgrowth in the ΔK280 tauRD-DsRed SH-SY5Y neuronal cell model. G. inflata further rescued the upregulation of ERN2 (pro-apoptotic) and downregulation of unfolded-protein-response-mediated chaperones ERP44, DNAJC3, and SERP1 in ΔK280 tauRD-DsRed 293 cells. Conclusion This in vitro study provides evidence that G. inflata may be a novel therapeutic for AD and tauopathies. Future applications of G. inflata on animal models of AD and tauopathies are warranted to corroborate its effect of reducing misfolding and potential disease modification.
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Affiliation(s)
- Kuo-Hsuan Chang
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan, Republic of China
| | - I-Cheng Chen
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan, Republic of China
| | - Hsuan-Yuan Lin
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan, Republic of China
| | - Hsuan-Chiang Chen
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan, Republic of China
| | - Chih-Hsin Lin
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan, Republic of China
| | - Te-Hsien Lin
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan, Republic of China
| | - Yu-Ting Weng
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan, Republic of China
| | - Chih-Ying Chao
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan, Republic of China
| | - Yih-Ru Wu
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan, Republic of China
| | - Jung-Yaw Lin
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan, Republic of China
| | - Guey-Jen Lee-Chen
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan, Republic of China
| | - Chiung-Mei Chen
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan, Republic of China
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Verma N, Beretvas SN, Pascual B, Masdeu JC, Markey MK. New scoring methodology improves the sensitivity of the Alzheimer's Disease Assessment Scale-Cognitive subscale (ADAS-Cog) in clinical trials. ALZHEIMERS RESEARCH & THERAPY 2015; 7:64. [PMID: 26560146 PMCID: PMC4642693 DOI: 10.1186/s13195-015-0151-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 09/28/2015] [Indexed: 01/11/2023]
Abstract
Introduction As currently used, the Alzheimer’s Disease Assessment Scale-Cognitive subscale (ADAS-Cog) has low sensitivity for measuring Alzheimer’s disease progression in clinical trials. A major reason behind the low sensitivity is its sub-optimal scoring methodology, which can be improved to obtain better sensitivity. Methods Using item response theory, we developed a new scoring methodology (ADAS-CogIRT) for the ADAS-Cog, which addresses several major limitations of the current scoring methodology. The sensitivity of the ADAS-CogIRT methodology was evaluated using clinical trial simulations as well as a negative clinical trial, which had shown an evidence of a treatment effect. Results The ADAS-Cog was found to measure impairment in three cognitive domains of memory, language, and praxis. The ADAS-CogIRT methodology required significantly fewer patients and shorter trial durations as compared to the current scoring methodology when both were evaluated in simulated clinical trials. When validated on data from a real clinical trial, the ADAS-CogIRT methodology had higher sensitivity than the current scoring methodology in detecting the treatment effect. Conclusions The proposed scoring methodology significantly improves the sensitivity of the ADAS-Cog in measuring progression of cognitive impairment in clinical trials focused in the mild-to-moderate Alzheimer’s disease stage. This provides a boost to the efficiency of clinical trials requiring fewer patients and shorter durations for investigating disease-modifying treatments. Electronic supplementary material The online version of this article (doi:10.1186/s13195-015-0151-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nishant Verma
- Department of Biomedical Engineering, The University of Texas at Austin, 107 W. Dean Keeton Street Stop C0800, Austin, TX, 78712, USA. .,NeuroTexas Institute Research Foundation, St. David's HealthCare, 1015 E. 32nd Street Suite 404, Austin, TX, 78705, USA.
| | - S Natasha Beretvas
- Department of Educational Psychology, The University of Texas at Austin, 1 University Station D5800, Austin, TX, 78712, USA.
| | - Belen Pascual
- Nantz National Alzheimer Center, Houston Methodist Neurological Institute, 6560 Fannin Street, Houston, TX, 77030, USA.
| | - Joseph C Masdeu
- Nantz National Alzheimer Center, Houston Methodist Neurological Institute, 6560 Fannin Street, Houston, TX, 77030, USA.
| | - Mia K Markey
- Department of Biomedical Engineering, The University of Texas at Austin, 107 W. Dean Keeton Street Stop C0800, Austin, TX, 78712, USA. .,Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street FCT14.50000, Houston, TX, 77030, USA.
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Proteomics in Traditional Chinese Medicine with an Emphasis on Alzheimer's Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:393510. [PMID: 26557146 PMCID: PMC4628675 DOI: 10.1155/2015/393510] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 07/27/2015] [Indexed: 12/12/2022]
Abstract
In recent years, there has been an increasing worldwide interest in traditional Chinese medicine (TCM). This increasing demand for TCM needs to be accompanied by a deeper understanding of the mechanisms of action of TCM-based therapy. However, TCM is often described as a concept of Chinese philosophy, which is incomprehensible for Western medical society, thereby creating a gap between TCM and Western medicine (WM). In order to meet this challenge, TCM research has applied proteomics technologies for exploring the mechanisms of action of TCM treatment. Proteomics enables TCM researchers to oversee various pathways that are affected by treatment, as well as the dynamics of their interactions with one another. This review discusses the utility of comparative proteomics to better understand how TCM treatment may be used as a complementary therapy for Alzheimer's disease (AD). Additionally, we review the data from comparative AD-related TCM proteomics studies and establish the relevance of the data with available AD hypotheses, most notably regarding the ubiquitin proteasome system (UPS).
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46
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Stavrou IJ, Breitbach ZS, Kapnissi-Christodoulou CP. Combined use of cyclofructans and an amino acid ester-based ionic liquid for the enantioseparation of huperzine A and coumarin derivatives in CE. Electrophoresis 2015; 36:3061-8. [DOI: 10.1002/elps.201500367] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 08/27/2015] [Accepted: 08/28/2015] [Indexed: 01/03/2023]
Affiliation(s)
| | - Zachary S. Breitbach
- Department of Chemistry and Biochemistry; University of Texas at Arlington; Arlington USA
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Fonseca-Santos B, Gremião MPD, Chorilli M. Nanotechnology-based drug delivery systems for the treatment of Alzheimer's disease. Int J Nanomedicine 2015; 10:4981-5003. [PMID: 26345528 PMCID: PMC4531021 DOI: 10.2147/ijn.s87148] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Alzheimer's disease is a neurological disorder that results in cognitive and behavioral impairment. Conventional treatment strategies, such as acetylcholinesterase inhibitor drugs, often fail due to their poor solubility, lower bioavailability, and ineffective ability to cross the blood-brain barrier. Nanotechnological treatment methods, which involve the design, characterization, production, and application of nanoscale drug delivery systems, have been employed to optimize therapeutics. These nanotechnologies include polymeric nanoparticles, solid lipid nanoparticles, nanostructured lipid carriers, microemulsion, nanoemulsion, and liquid crystals. Each of these are promising tools for the delivery of therapeutic devices to the brain via various routes of administration, particularly the intranasal route. The objective of this study is to present a systematic review of nanotechnology-based drug delivery systems for the treatment of Alzheimer's disease.
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Affiliation(s)
- Bruno Fonseca-Santos
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Maria Palmira Daflon Gremião
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
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Lai S, Zhang M, Xu D, Zhang Y, Qiu L, Tian C, Zheng JC. Direct reprogramming of induced neural progenitors: a new promising strategy for AD treatment. Transl Neurodegener 2015; 4:7. [PMID: 25949812 PMCID: PMC4422611 DOI: 10.1186/s40035-015-0028-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 04/03/2015] [Indexed: 12/23/2022] Open
Abstract
Alzheimer's disease (AD) is a prominent form of dementia, characterized by aggregation of the amyloid β-peptide (Aβ) plaques and neurofibrillary tangles, loss of synapses and neurons, and degeneration of cognitive functions. Currently, although a variety of medications can relieve some of the symptoms, there is no cure for AD. Recent breakthroughs in the stem cell field provide promising strategies for AD treatment. Stem cells including embryonic stem cells (ESCs), neural stem cells (NSCs), mesenchymal stem cells (MSCs), and induced pluripotent stem cells (iPSCs) are potentials for AD treatment. However, the limitation of cell sources, safety issues, and ethical issues restrict their applications in AD. Recently, the direct reprogramming of induced neural progenitor cells (iNPCs) has shed light on the treatment of AD. In this review, we will discuss the latest progress, challenges, and potential applications of direct reprogramming in AD treatment.
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Affiliation(s)
- Siqiang Lai
- />Tenth People’s Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Min Zhang
- />Tenth People’s Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Dongsheng Xu
- />Tenth People’s Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
- />University of Nebraska Medical Center, Omaha, NE 68198-5930 USA
| | - Yiying Zhang
- />Tenth People’s Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Lisha Qiu
- />Tenth People’s Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Changhai Tian
- />Tenth People’s Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
- />University of Nebraska Medical Center, Omaha, NE 68198-5930 USA
| | - Jialin Charlie Zheng
- />Tenth People’s Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
- />University of Nebraska Medical Center, Omaha, NE 68198-5930 USA
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Zhu DD, Chen XB, Huang R, Yan SJ, Lin J. Three-component solvent-free synthesis of fluorine substituted bicyclic pyridines. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Hu S, Wang R, Cui W, Zhang Z, Mak S, Xu D, Choi C, Tsim KW, Carlier PR, Lee M, Han Y. Inhibiting β-Amyloid-Associated Alzheimer’s Pathogenesis In Vitro and In Vivo by a Multifunctional Dimeric Bis(12)-hupyridone Derived from Its Natural Analogue. J Mol Neurosci 2014; 55:1014-21. [DOI: 10.1007/s12031-014-0458-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 10/29/2014] [Indexed: 10/24/2022]
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