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Chen Y, Zhu G, Yuan T, Ma R, Zhang X, Meng F, Yang A, Du T, Zhang J. Subthalamic nucleus deep brain stimulation alleviates oxidative stress via mitophagy in Parkinson's disease. NPJ Parkinsons Dis 2024; 10:52. [PMID: 38448431 PMCID: PMC10917786 DOI: 10.1038/s41531-024-00668-4] [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: 08/01/2023] [Accepted: 02/23/2024] [Indexed: 03/08/2024] Open
Abstract
Subthalamic nucleus deep brain stimulation (STN-DBS) has the potential to delay Parkinson's disease (PD) progression. Whether oxidative stress participates in the neuroprotective effects of DBS and related signaling pathways remains unknown. To address this, we applied STN-DBS to mice and monkey models of PD and collected brain tissue to evaluate mitophagy, oxidative stress, and related pathway. To confirm findings in animal experiments, a cohort of PD patients was recruited and oxidative stress was evaluated in cerebrospinal fluid. When PD mice received STN stimulation, the mTOR pathway was suppressed, accompanied by elevated LC3 II expression, increased mitophagosomes, and a decrease in p62 expression. The increase in mitophagy and balance of mitochondrial fission/fusion dynamics in the substantia nigra caused a marked enhancement of the antioxidant enzymes superoxide dismutase and glutathione levels. Subsequently, fewer mitochondrial apoptogenic factors were released to the cytoplasm, which resulted in a suppression of caspase activation and reservation of dopaminergic neurons. While interfaced with an mTOR activator, oxidative stress was no longer regulated by STN-DBS, with no neuroprotective effect. Similar results to those found in the rodent experiments were obtained in monkeys treated with chronic STN stimulation. Moreover, antioxidant enzymes in PD patients were increased after the operation, however, there was no relation between changes in antioxidant enzymes and motor impairment. Collectively, our study found that STN-DBS was able to increase mitophagy via an mTOR-dependent pathway, and oxidative stress was suppressed due to removal of damaged mitochondria, which was attributed to the dopaminergic neuroprotection of STN-DBS in PD.
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Affiliation(s)
- Yingchuan Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 100070, Beijing, China
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China
| | - Guanyu Zhu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 100070, Beijing, China
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China
| | - Tianshuo Yuan
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 100070, Beijing, China
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China
| | - Ruoyu Ma
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 100070, Beijing, China
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China
| | - Xin Zhang
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China
- Department of Functional Neurosurgery, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, China
| | - Fangang Meng
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China
- Department of Functional Neurosurgery, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, China
| | - Anchao Yang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 100070, Beijing, China
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China
| | - Tingting Du
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China.
- Department of Functional Neurosurgery, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, China.
| | - Jianguo Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 100070, Beijing, China.
- Beijing Key Laboratory of Neurostimulation, 100070, Beijing, China.
- Department of Functional Neurosurgery, Beijing Neurosurgical Institute, Capital Medical University, 100070, Beijing, China.
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2
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Yasuno H, Masuda Y, Ozaki H, Sano T, Shinozawa T, Watanabe T. Identifying the dataset to define the optimal timing of histopathological examination for central nervous system toxicity in MPTP-induced Parkinson's disease monkey model. J Toxicol Pathol 2023; 36:199-204. [PMID: 37868118 PMCID: PMC10585241 DOI: 10.1293/tox.2023-0010] [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: 02/03/2023] [Accepted: 05/08/2023] [Indexed: 10/24/2023] Open
Abstract
Determining the optimal timing for histopathological examination following exposure to a test article is crucial for assessing neurotoxicity. However, no study has focused on identifying an ideal dataset to define the optimal timing for histopathological examination of central nervous system (CNS) toxicity in monkeys. Therefore, this study aimed to define a predictive endpoint that would guide us in selecting the optimal timing for histopathological examination of CNS toxicity in monkeys. Four cynomolgus monkeys were administered 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) intravenously at a dosage of 0.6 mg/kg twice at 1-week intervals. Necropsies were performed 1 week after the final dose. The Parkinsonian rating (PR) score and temporal changes in neurofilament light chain and glial fibrillary acidic protein concentrations in the cerebrospinal fluid (CSF) and serum were evaluated and compared with the histopathological findings in the brain. The PR score of all animals administered MPTP increased from days 10 to 11, with some degree of individual variability. Microscopically, all animals showed axonal swelling and vacuolation, with or without microgliosis in the nigrostriatal bundle. However, substantial neurodegenerative findings were observed only in animals with high PR scores at necropsy. A slight increase in CSF biomarker levels at necropsy was also observed in animals with high PR scores. However, their correlation with microscopic findings in these animals was unclear. These data suggest that comprehensive clinical observations, such as PR score alone or combined with other CSF biomarkers, could be further evaluated as potential indicators for triggering anatomic CNS evaluations in monkeys following toxic insults.
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Affiliation(s)
- Hironobu Yasuno
- Drug Safety Research and Evaluation, Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yasushi Masuda
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Harushige Ozaki
- Drug Safety Research and Evaluation, Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Tomoya Sano
- Drug Safety Research and Evaluation, Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Tadahiro Shinozawa
- Drug Safety Research and Evaluation, Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Takeshi Watanabe
- Drug Safety Research and Evaluation, Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa 251-8555, Japan
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3
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Haroun M. Review on the Developments of Benzothiazole-containing Antimicrobial Agents. Curr Top Med Chem 2022; 22:2630-2659. [PMID: 36503470 DOI: 10.2174/1568026623666221207161752] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 12/14/2022]
Abstract
The infectious diseases caused by bacterial resistance to antibiotics constitute an increasing threat to human health on a global scale. An increasing number of infections, including tuberculosis, pneumonia, salmonellosis and gonorrhea, are becoming progressively challenging to cure owing to the ineffectiveness of current clinically used antibiotics and presents a serious health threat worldwide in medical community. The major concern of this global health threat is the ability of microorganisms to develop one or several mechanisms of resistance to antibiotics, making them inefficient to therapeutic treatment. The quest for discovering novel scaffold with antimicrobial property is particularly in great need to face future challenges in hospital and healthcare settings. Hence, the development of benzothiazoles is of considerable interest to medicinal chemists. Benzothiazole, being part of an important class of heterocyclic scaffold retains a wide spectrum of various attractive pharmacological activities. Antibiotic resistance represents an increasing burden comprising medical cost, hospital stay and mortality. Several derivatives containing a benzothiazole scaffold, reported in the literature, were found to display remarkable potencies towards diverse Grampositive and Gram-negative bacterial pathogens. The principal focus concerns the antibacterial potential of benzothiazole-based derivatives as antimicrobial agents interacting with targets in bacterial pathogens. In this review, we also disclose the significance of the benzothiazole moiety in the discovery of new antibacterial compounds, the potential of benzothiazole-based derivatives in the case of resistant bacterial strains, optimization of their antibacterial activity, and their future perspectives. The structure-activity relationship study and the mode of action of the title derivatives are highlighted too.
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Affiliation(s)
- Michelyne Haroun
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
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4
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Sharma J, Mishra P, Bhadoria J. 2-aminophenol as a leading reactant for the one pot synthetic strategies towards benzoxazole derivatives: A systematic review. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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5
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Hamid I, Nadeem H, Ansari SF, Khiljee S, Abbasi I, Bukhari A, Arif M, Imran M. 2-Substituted Benzoxazoles as Potent Anti-Inflammatory Agents: Synthesis, Molecular Docking and In Vivo Anti-Ulcerogenic Studies. Med Chem 2021; 18:791-809. [PMID: 34931968 DOI: 10.2174/1573406418666211220125344] [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: 09/08/2021] [Revised: 10/25/2021] [Accepted: 10/31/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Non-steroidal anti-inflammatory drugs (NSAIDs) are the commonly used therapeutic interventions of inflammation and pain that competitively inhibit the cyclooxygenase (COX) enzymes. Several side effects like gastrointestinal and renal toxicities are associated with the use of these drugs. The therapeutic anti-inflammatory benefits of NSAIDs are produced by the inhibition of COX-2 enzymes, while undesirable side effects arise from the inhibition of COX-1 enzymes. OBJECTIVES In the present study, a new series of 2-substituted benzoxazole derivatives 2(a-f) and 3(a-e) were synthesized in our lab as potent anti-inflammatory agents with outstanding gastro-protective potential. The new analogs 2(a-f) and 3(a-e) were designed depending upon the literature review to serve as ligands for the development of selective COX-2 inhibitors. METHODS The synthesized analogs were characterized using different spectroscopic techniques (FTIR, 1HNMR, 13CNMR) and elemental analysis. All synthesized compounds were screened for their binding potential in the protein pocket of COX-2 and evaluated for their anti-inflammatory potential in animals using the carrageenan-induced paw edema method. Further 5 compounds were selected to assess the in vivo anti-ulcerogenic activity in an ethanol-induced anti-ulcer rat model. RESULTS Five compounds (2a, 2b, 3a, 3b and 3c) exhibited potent anti-inflammatory activity and significant binding potential in the COX-2 protein pocket. Similarly, these five compounds demonstrated a significant gastro-protective effect (p<0.01) in comparison to the standard drug, Omeprazole. CONCLUSION Depending upon our results, we hypothesize that 2-substituted benzoxazole derivatives have excellent potential to serve as candidates for the development of selective anti-inflammatory agents (COX-2 inhibitors). However, further assessments are required to delineate their underlying mechanisms.
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Affiliation(s)
- Iqra Hamid
- Riphah Institute of Pharmaceutical Sciences, Riphah International University Islamabad, 44000, Pakistan
| | - Humaira Nadeem
- Riphah Institute of Pharmaceutical Sciences, Riphah International University Islamabad, 44000, Pakistan
| | - Sameen Fatima Ansari
- Riphah Institute of Pharmaceutical Sciences, Riphah International University Islamabad, 44000, Pakistan
| | - Sonia Khiljee
- Shahida Islam College of Pharmacy, Lodhran, Punjab , Pakistan
| | - Inzamam Abbasi
- Department of Chemistry, Quaid-e-Azam University Islamabad, 44000, Pakistan
| | - Asma Bukhari
- Riphah Institute of Pharmaceutical Sciences, Riphah International University Islamabad, 44000, Pakistan
| | - Muazzam Arif
- Riphah Institute of Pharmaceutical Sciences, Riphah International University Islamabad, 44000, Pakistan
| | - Muhammad Imran
- Department of Pharmacy, Iqra University Islamabad Campus, Islamabad 44000, Pakistan
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6
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Iskhakova L, Rappel P, Deffains M, Fonar G, Marmor O, Paz R, Israel Z, Eitan R, Bergman H. Modulation of dopamine tone induces frequency shifts in cortico-basal ganglia beta oscillations. Nat Commun 2021; 12:7026. [PMID: 34857767 PMCID: PMC8640051 DOI: 10.1038/s41467-021-27375-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 10/18/2021] [Indexed: 11/21/2022] Open
Abstract
Βeta oscillatory activity (human: 13-35 Hz; primate: 8-24 Hz) is pervasive within the cortex and basal ganglia. Studies in Parkinson's disease patients and animal models suggest that beta-power increases with dopamine depletion. However, the exact relationship between oscillatory power, frequency and dopamine tone remains unclear. We recorded neural activity in the cortex and basal ganglia of healthy non-human primates while acutely and chronically up- and down-modulating dopamine levels. We assessed changes in beta oscillations in patients with Parkinson's following acute and chronic changes in dopamine tone. Here we show beta oscillation frequency is strongly coupled with dopamine tone in both monkeys and humans. Power, coherence between single-units and local field potentials (LFP), spike-LFP phase-locking, and phase-amplitude coupling are not systematically regulated by dopamine levels. These results demonstrate that beta frequency is a key property of pathological oscillations in cortical and basal ganglia networks.
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Affiliation(s)
- L Iskhakova
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel.
- The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
| | - P Rappel
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
- The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - M Deffains
- University of Bordeaux, UMR 5293, IMN, Bordeaux, France
- CNRS, UMR 5293, IMN, Bordeaux, France
| | - G Fonar
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - O Marmor
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
- The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - R Paz
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Z Israel
- Department of Neurosurgery, Hadassah University Hospital, Jerusalem, Israel
| | - R Eitan
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
- Jerusalem Mental Health Center, Hebrew University Medical School, Jerusalem, Israel
- Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - H Bergman
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
- The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Neurosurgery, Hadassah University Hospital, Jerusalem, Israel
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7
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Nazeef M, Shivhare KN, Ali S, Ansari S, Siddiqui IR. Visible-light-mediated one-pot efficient synthesis of 1-aryl-1H,3H-thiazolo[3,4-a]benzimidazoles: a metal-free photochemical approach in aqueous ethanol. Mol Divers 2021; 25:2479-2486. [PMID: 32980996 DOI: 10.1007/s11030-020-10145-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 09/16/2020] [Indexed: 01/10/2023]
Abstract
A new metal-free approach to construct medicinally valuable 1-aryl-1H,3H-thiazolo[3,4-a]benzimidazoles under visible light irradiation in aqueous ethanol medium at room temperature has been developed. The present process was performed with 1,2-phenylenediamines, aromatic aldehydes and 2-mercaptoacetic acid utilizing a simple household 22 W compact fluorescent lamp to generate C-S, C-N bonds through radical intermediates. This visible-light-promoted synthesis provides lower cost, operation simplicity and high functional groups tolerating ability with short reaction time and high yield under mild reaction conditions.
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Affiliation(s)
- Mohd Nazeef
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Km Neha Shivhare
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Shabir Ali
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, India
| | - Saif Ansari
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - I R Siddiqui
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India.
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8
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Benzothiazoles from Condensation of o-Aminothiophenoles with Carboxylic Acids and Their Derivatives: A Review. Molecules 2021; 26:molecules26216518. [PMID: 34770926 PMCID: PMC8587170 DOI: 10.3390/molecules26216518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/14/2021] [Accepted: 10/21/2021] [Indexed: 01/27/2023] Open
Abstract
Nowadays, organic chemists are interested in the field of heterocyclic chemistry due to its use in the synthesis of a great variety of biologically active compounds. Heterocyclic compounds are widely found in nature and are essential for life. Among these, some natural nitrogen containing heterocyclic compounds have been used as chemotherapeutic agents. Their attachment to sugar molecules either as thioglycosides or as nucleosides analogues plays an important role in vital biological processes as well as in synthetic organic chemistry. Molecules containing benzothiazole (BT) nuclei are of this interesting class of compounds because some of them have been found to have a wide variety of biological activities. In this sense, we selected this topic to review and to then summarize the procedures related to the condensation reactions of o-aminothiophenoles (ATPs) as well as their disulfides with carboxylic acids, esters, orthoesters, acyl chlorides, amides, and nitriles. The condensation reactions with carbon dioxide (CO2) are included. Conventional methods with the use of acid and metal catalysts as well as recent green techniques, such as microwave irradiation, the use of ionic liquids, and ultrasound (US) chemistry, which have proven to have many advantages, were found in the review.
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9
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Synthesis, antimicrobial activity, density functional modelling and molecular docking with COVID-19 main protease studies of benzoxazole derivative: 2-(p-chloro-benzyl)-5-[3-(4-ethly-1-piperazynl) propionamido]-benzoxazole. J Mol Struct 2021; 1237:130413. [PMID: 33846658 PMCID: PMC8026219 DOI: 10.1016/j.molstruc.2021.130413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/20/2021] [Accepted: 03/30/2021] [Indexed: 12/28/2022]
Abstract
This study contains synthesis, antimicrobial activity, density functional modelling and molecular docking studies of benzoxazole derivative: 2-(p-chloro-benzyl)-5-[3-(4-ethly-1-piperazynl) propionamido]-benzoxazole. The synthetic procedure of investigated compound is given in detail. The newly synthesized benzoxazole compound and standard drugs were evaluated for their antimicrobial activity against some Gram-positive, Gram-negative bacteria and fungus C. albicans and their drug-resistant isolates. The benzoxazole compound has been characterized by using 1H-NMR, IR and MASS spectrometry and elemental analysis techniques. The molecular structure of the compound in the ground state has been modelling using density functional theory (DFT) with B3LYP/6-311++g(d,p) level. The molecular docking of 2-(p-chloro-benzyl)-5-[3-(4-ethly-1-piperazynl) propionamido]-benzoxazole with COVID-19 main protease has been also performed by using optimized geometry and the experimentally determined dimensional structure of the main protease (M-pro) of COVID-19.
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10
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Guang J, Baker H, Ben-Yishay Nizri O, Firman S, Werner-Reiss U, Kapuller V, Israel Z, Bergman H. Toward asleep DBS: cortico-basal ganglia spectral and coherence activity during interleaved propofol/ketamine sedation mimics NREM/REM sleep activity. NPJ PARKINSONS DISEASE 2021; 7:67. [PMID: 34341348 PMCID: PMC8329235 DOI: 10.1038/s41531-021-00211-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 07/09/2021] [Indexed: 12/20/2022]
Abstract
Deep brain stimulation (DBS) is currently a standard procedure for advanced Parkinson's disease. Many centers employ awake physiological navigation and stimulation assessment to optimize DBS localization and outcome. To enable DBS under sedation, asleep DBS, we characterized the cortico-basal ganglia neuronal network of two nonhuman primates under propofol, ketamine, and interleaved propofol-ketamine (IPK) sedation. Further, we compared these sedation states in the healthy and Parkinsonian condition to those of healthy sleep. Ketamine increases high-frequency power and synchronization while propofol increases low-frequency power and synchronization in polysomnography and neuronal activity recordings. Thus, ketamine does not mask the low-frequency oscillations used for physiological navigation toward the basal ganglia DBS targets. The brain spectral state under ketamine and propofol mimicked rapid eye movement (REM) and Non-REM (NREM) sleep activity, respectively, and the IPK protocol resembles the NREM-REM sleep cycle. These promising results are a meaningful step toward asleep DBS with nondistorted physiological navigation.
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Affiliation(s)
- Jing Guang
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
| | - Halen Baker
- Department of Medical Neurobiology, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Shimon Firman
- Department of Anesthesiology, Critical Care Medicine, and Pain Management, Hadassah Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Uri Werner-Reiss
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Vadim Kapuller
- Department of Pediatric Surgery, Hadassah Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel.,Asuta-Ashdod University Medical Center, Ashdod, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Zvi Israel
- Department of Neurosurgery, Hadassah Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hagai Bergman
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.,Department of Medical Neurobiology, The Hebrew University of Jerusalem, Jerusalem, Israel.,Department of Neurosurgery, Hadassah Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel
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11
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Mathapati SR, Patil KN, Mathakari SS, Suryawanshi AW, Jadhav AH. Fluorinated phosphoric acid as a versatile effective catalyst for synthesis of series of benzimidazoles, benzoxazoles and benzothiazoles at room temperature. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1871345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Sushil R. Mathapati
- Department of Chemistry, Shri Madhavrao Patil Mahavidyalaya, Affiliated to Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Komal N. Patil
- Centre for Nano and Material Sciences (CNMS), Jain University, Bangalore, Karnataka, India
| | - Sujit S. Mathakari
- Department of Chemistry, Shri Madhavrao Patil Mahavidyalaya, Affiliated to Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Appasaheb W. Suryawanshi
- Department of Chemistry, Shri Madhavrao Patil Mahavidyalaya, Affiliated to Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Arvind H. Jadhav
- Centre for Nano and Material Sciences (CNMS), Jain University, Bangalore, Karnataka, India
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12
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Erol M, Celik I, Kuyucuklu G. Synthesis, Molecular Docking, Molecular Dynamics, DFT and Antimicrobial Activity Studies of 5-substituted-2-(p-methylphenyl)benzoxazole Derivatives. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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13
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Kuzu B, Sari O, Erdem SS, Algul O, Menges N. Synthesis of Benzoxazole‐2‐carboxylate Derivatives: Electronic‐ and Position‐effect of Functional Groups and Computational Modeling of the Selectivity for Oxazole Ring. ChemistrySelect 2021. [DOI: 10.1002/slct.202100174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Burak Kuzu
- Department of Pharmaceutical Chemistry Mersin University Mersin Turkey
- Department of Pharmaceutical Chemistry Van Yüzüncü Yil University 65080 Van Turkey
| | - Ozlem Sari
- Department of Chemistry Faculty of Arts and Sciences Kırşehir Ahi Evran University 40100 Kırşehir Turkey
| | - Safiye Sag Erdem
- Department of Chemistry Faculty of Arts and Sciences Marmara University Goztepe Campus 34722 Istanbul Turkey
| | - Oztekin Algul
- Department of Pharmaceutical Chemistry Mersin University Mersin Turkey
| | - Nurettin Menges
- Department of Pharmaceutical Chemistry Van Yüzüncü Yil University 65080 Van Turkey
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14
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Ersan RH, Alagoz MA, Dogen A, Duran N, Burmaoglu S, Algul O. Bisbenzoxazole Derivatives: Design, Synthesis, in Vitro Antimicrobial, Antiproliferative Activity, and Molecular Docking Studies. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1852589] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ronak Haj Ersan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mersin University, Mersin, Turkey
| | - Mehmet Abdullah Alagoz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Inonu University, Malatya, Turkey
| | - Aylin Dogen
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Mersin University, Mersin, Turkey
| | - Nizami Duran
- Department of Medical Microbiology, Medical Faculty, Mustafa Kemal University, Antakya-Hatay, Turkey
| | - Serdar Burmaoglu
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Oztekin Algul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mersin University, Mersin, Turkey
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15
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Erol M, Celik I, Uzunhisarcikli E, Kuyucuklu G. Synthesis, Molecular Docking, and DFT Studies of Some New 2,5-Disubstituted Benzoxazoles as Potential Antimicrobial and Cytotoxic Agents. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1802305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Meryem Erol
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Erciyes University, Kayseri, Turkey
| | - Ismail Celik
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Erciyes University, Kayseri, Turkey
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara University, Ankara, Turkey
| | - Ebru Uzunhisarcikli
- Faculty of Pharmacy, Department of Pharmacology, Erciyes University, Kayseri, Turkey
| | - Gulcan Kuyucuklu
- Faculty of Medicine, Department of Medical Microbiology, Trakya University, Edirne, Turkey
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16
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Karunakar P, Kumar CNSSP. PEG-600-Mediated Efficient and Environmentally Sustainable
Synthesis of N-[4-(1H-Benzazole-2-yl)phenyl]phthalimides. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020070246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Erol M, Celik I, Temiz-Arpaci O, Kaynak-Onurdag F, Okten S. Design, synthesis, molecular docking, density functional theory and antimicrobial studies of some novel benzoxazole derivatives as structural bioisosteres of nucleotides. J Biomol Struct Dyn 2020; 39:3080-3091. [PMID: 32323628 DOI: 10.1080/07391102.2020.1760134] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A series of some novel 2-(p-tert-butylphenyl)-5-(3-substituted-propionamido)benzoxazole derivatives have been designed, synthesized, evaluated for antimicrobial activity and have performed molecular docking studies against penicillin-binding protein 4 (PBP4) and active and allosteric site of PBP2a; were calculated some theoretical quantum parameters and absorption, distribution, metabolism and excretion (ADME) descriptors. B9 acted at minimum inhibitory concentration (MIC) = 8 µg/mL against S. aureus, E. faecalis and their drug-resistant isolates and also formed with GLU145 (1.74 Å) and ILE144 (1.89 Å) two hydrogen bonds at allosteric site of PBP2a with Glide emodel score: -42.168. ΔE of compound B9 had moderate value of all compounds with 0.14742.[Formula: see text]Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Meryem Erol
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Erciyes University, Kayseri, Turkey
| | - Ismail Celik
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Erciyes University, Kayseri, Turkey.,Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara University, Ankara, Turkey
| | - Ozlem Temiz-Arpaci
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara University, Ankara, Turkey
| | - Fatma Kaynak-Onurdag
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Trakya University, Edirne, Turkey
| | - Suzan Okten
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Trakya University, Edirne, Turkey
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18
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Cao H, Liu XJ, Bie FS, Yan P, Ma J, Shi YJ, Han Y. Efficient Synthesis of 2-Functionalized Benzoxazoles Catalyzed by Copper Iodide. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Kmita LC, Ilkiw JL, Rodrigues LS, Targa AD, Noseda ACD, Dos-Santos P, Fagotti J, Trindade ES, Lima MM. Absence of a synergic nigral proapoptotic effect triggered by REM sleep deprivation in the rotenone model of Parkinson´s disease. ACTA ACUST UNITED AC 2020; 12:196-202. [PMID: 31890096 PMCID: PMC6932851 DOI: 10.5935/1984-0063.20190078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Excitotoxicity has been related to play a crucial role in Parkinson's disease (PD) pathogenesis. Pedunculopontine tegmental nucleus (PPT) represents one of the major sources of glutamatergic afferences to nigrostriatal pathway and putative reciprocal connectivity between these structures may exert a potential influence on rapid eye movement (REM) sleep control. Also, PPT could be overactive in PD, it seems that dopaminergic neurons are under abnormally high levels of glutamate and consequently might be more vulnerable to neurodegeneration. We decided to investigate the neuroprotective effect of riluzole administration, a N-methyl-D-aspartate (NMDA) receptor antagonist, in rats submitted simultaneously to nigrostrial rotenone and 24h of REM sleep deprivation (REMSD). Our findings showed that blocking NMDA glutamatergic receptors in the SNpc, after REMSD challenge, protected the dopaminergic neurons from rotenone lesion. Concerning rotenone-induced hypolocomotion, riluzole reversed this impairment in the control groups. Also, REMSD prevented the occurrence of rotenone-induced motor impairment as a result of dopaminergic supersensitivity. In addition, higher Fluoro Jade C (FJC) staining within the SNpc was associated with decreased cognitive performance observed in rotenone groups. Such effect was counteracted by riluzole suggesting the occurrence of an antiapoptotic effect. Moreover, riluzole did not rescue cognitive impairment impinged by rotenone, REMSD or their combination. These data indicated that reductions of excitotoxicity, by riluzole, partially protected dopamine neurons from neuronal death and appeared to be effective in relieve specific rotenone-induce motor disabilities.
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Affiliation(s)
- Luana C Kmita
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil
| | - Jessica L Ilkiw
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil
| | - Lais S Rodrigues
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil.,Federal University of Paraná, Department of Pharmacology - Curitiba - Paraná - Brazil
| | - Adriano Ds Targa
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil.,Federal University of Paraná, Department of Pharmacology - Curitiba - Paraná - Brazil
| | - Ana Carolina D Noseda
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil.,Federal University of Paraná, Department of Pharmacology - Curitiba - Paraná - Brazil
| | - Patrícia Dos-Santos
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil
| | - Juliane Fagotti
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil
| | - Edvaldo S Trindade
- Federal University of Paraná, Department of Cell Biology - Curitiba - Paraná - Brazil
| | - Marcelo Ms Lima
- Federal University of Paraná. Department of Physiology - Curitiba - Paraná - Brazil.,Federal University of Paraná, Department of Pharmacology - Curitiba - Paraná - Brazil
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20
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Kerckhove N, Busserolles J, Stanbury T, Pereira B, Plence V, Bonnetain F, Krakowski I, Eschalier A, Pezet D, Balayssac D. Effectiveness assessment of riluzole in the prevention of oxaliplatin-induced peripheral neuropathy: RILUZOX-01: protocol of a randomised, parallel, controlled, double-blind and multicentre study by the UNICANCER-AFSOS Supportive Care intergroup. BMJ Open 2019; 9:e027770. [PMID: 31182448 PMCID: PMC6561607 DOI: 10.1136/bmjopen-2018-027770] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
INTRODUCTION Most patients (>70%) experience acute neuropathic symptoms shortly after oxaliplatin infusions. These symptoms are not always resolved between infusions. Overall, 30%-50% of patients suffer from chronic oxaliplatin-induced peripheral neuropathy (OIPN). This cumulative and dose-dependent sensory neuropathy limits compliance or results in oxaliplatin-based chemotherapies to be substituted with less neurotoxic agents. These treatment changes impair clinical outcomes, and may be associated with comorbidities, such as distress, depression and anxiety. Currently, no drug used to prevent or treat OIPN is sufficiently effective to be used routinely in clinical practice. There is, thus, an unmet therapeutic need to reduce the intensity of and/or prevent OIPN. We hypothesised that riluzole would be an excellent candidate to address this public health issue. Riluzole is approved for treating amyotrophic lateral sclerosis. In animals, there is a beneficial effect on sensorimotor and pain disorders, as well as related comorbidities, after repeated administration of oxaliplatin. In humans, riluzole has shown neuroprotective, anxiolytic and antidepressive effects. METHODS AND ANALYSIS RILUZOX-01 trial was designed as a randomised, controlled, double-blind study to evaluate the efficacy of riluzole to prevent OIPN. Patients with colorectal cancer and initiating adjuvant oxaliplatin-based chemotherapy are eligible. Patients (n=210) will be randomly assigned to either riluzole or placebo, concomitantly with chemotherapy. The primary endpoint is the change in OIPN intensity, assessed by the sensory scale of the QLQ-CIPN20, after six 2-week cycles of chemotherapy. Secondary endpoints include incidence and severity of neuropathy, grade of sensory neuropathy, intensity and features of neuropathic pain, health-related quality of life, disease-free survival, overall survival and safety. ETHICS AND DESSIMINATION The study was approved by a French ethics committee (ref:39/18_1, 'Comité de Protection des Personnes' Ouest-IV, France) and plans to start enroling patients in September 2019. The trial is registered in EudraCT and clinicaltrials.gov. TRIAL REGISTRATION NUMBER N°2017-002320-25; NCT03722680.
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Affiliation(s)
- Nicolas Kerckhove
- Medical pharmacology, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
- Institut Analgesia, Faculty of medicine, Clermont-Ferrand, France
- INSERM 1107, NEURO-DOL Basic and Clinical Pharmacology of Pain, University Clermont Auvergne, Clermont-Ferrand, France
| | - Jérome Busserolles
- INSERM 1107, NEURO-DOL Basic and Clinical Pharmacology of Pain, University Clermont Auvergne, Clermont-Ferrand, France
| | | | - Bruno Pereira
- DRCI, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | | | | | | | - Alain Eschalier
- Institut Analgesia, Faculty of medicine, Clermont-Ferrand, France
- INSERM 1107, NEURO-DOL Basic and Clinical Pharmacology of Pain, University Clermont Auvergne, Clermont-Ferrand, France
| | - Denis Pezet
- INSERM 1107, NEURO-DOL Basic and Clinical Pharmacology of Pain, University Clermont Auvergne, Clermont-Ferrand, France
- University Hospital of Clermont-Ferrand, Digestive and hepatobiliary surgery, Clermont-Ferrand, France
| | - David Balayssac
- INSERM 1107, NEURO-DOL Basic and Clinical Pharmacology of Pain, University Clermont Auvergne, Clermont-Ferrand, France
- DRCI, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
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21
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Kim T, Lee SA, Noh T, Choi P, Choi SJ, Song BG, Kim Y, Park YT, Huh G, Kim YJ, Ham J. Synthesis, Structure Revision, and Cytotoxicity of Nocarbenzoxazole G. JOURNAL OF NATURAL PRODUCTS 2019; 82:1325-1330. [PMID: 30958679 DOI: 10.1021/acs.jnatprod.9b00072] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The total synthesis of nocarbenzoxazoles F (1) and G (2), originally obtained from the marine-derived halophilic bacterial strain Nocardiopsis lucentensis DSM 44048, was achieved via a simple and versatile route involving microwave-assisted construction of a benzoxazole skeleton, followed by carbon-carbon bond formation with the corresponding aryl bromides. Unfortunately, the 1H and 13C NMR spectra of natural nocarbenzoxazole G did not agree with those of the synthesized compound. In particular, the spectra of the isolated and synthesized compounds showed considerable differences in the signals from the protons and carbons in the aryl group. The revised structure was validated by the total synthesis of the actual nocarbenzoxazole G (8c) molecule, which is a regioisomer of the compound that was reported earlier as nocarbenzoxazole G. The synthesized derivatives showed specific cytotoxicity to the human cervical carcinoma cell line, HeLa, but did not have any remarkable effect on the other cell lines.
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Affiliation(s)
- Taejung Kim
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Sin-Ae Lee
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Taesub Noh
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Pilju Choi
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Seon-Jun Choi
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Bong Geun Song
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Youngseok Kim
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Young-Tae Park
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Gyuwon Huh
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
- Division of Bio-Medical Science & Technology , University of Science and Technology (UST) , 217 Gajeong-ro, Yuseong-gu , Daejeon 34113 , Republic of Korea
| | - Young-Joo Kim
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
| | - Jungyeob Ham
- Natural Products Research Institute , Korea Institute of Science and Technology (KIST) , 679 Saimdang-ro , Gangneung 25451 , Republic of Korea
- Division of Bio-Medical Science & Technology , University of Science and Technology (UST) , 217 Gajeong-ro, Yuseong-gu , Daejeon 34113 , Republic of Korea
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22
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Zhang J, Qiao M, Chen L, Dong Y, Jiao C, Liao S, Wu Y. Thiol substrate-promoted dehydrogenative cyclization of arylmethyl thiols with ortho-substituted amines: a universal approach to heteroaromatic compounds. Org Chem Front 2019. [DOI: 10.1039/c9qo00554d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thiol substrate-promoted one-pot synthesis of a library of heteroaromatic compounds was developed.
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Affiliation(s)
- Jinli Zhang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
- P.R. China
- College of Chemistry and Molecular Engineering
| | - Mengjun Qiao
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
- P.R. China
| | - Ling Chen
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
- P.R. China
| | - Yibo Dong
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
- P.R. China
| | - Chengkang Jiao
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Shengqi Liao
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
- P.R. China
- College of Chemistry and Molecular Engineering
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23
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Synthesis and Evaluation of N-[1-(((3,4-Diphenylthiazol-2(3 H)-ylidene)amino)methyl)cyclopentyl]acetamide Derivatives for the Treatment of Diseases Belonging to MAOs. J CHEM-NY 2018. [DOI: 10.1155/2018/3547942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A series of N-[1-(((3,4-diphenylthiazol-2(3H)-ylidene)amino)methyl)cyclopentyl]acetamide derivatives (4a-4i) were synthesized in good yield and assayed for their inhibitory potency against monoamine oxidase (MAO) isoforms. Structures of newly synthesized compounds were characterized by IR, 1H-NMR, 13C-NMR, and mass spectroscopic methods. The inhibitory activity of compounds (4a-4i) against hMAO-A and hMAO-B enzymes was elucidated by using in vitro fluorometric method using Amplex Red® reagent. In the hMAO-A inhibition assay, compounds 4a, 4b, 4c, and 4i exhibited similar activity with standard drug moclobemide (IC50 = 6.061 ± 0.262 µM) with IC50 values of 7.06 ± 0.18 µM, 6.56 ± 0.20 µM, 6.78 ± 0.15 µM, and 7.09 ± 0.17 µM, respectively. According to hMAO-B inhibition results, compounds 4a, 4b, and 4c displayed significant activity with IC50 values of 0.42 ± 0.012 µM, 0.36 ± 0.014 µM, and 0.69 ± 0.020 µM, respectively. In the wake of all these results, it was understood that compound 4b was found to be the most potent derivative in the series against both isoforms and selective as MAO-B inhibitor. The cytotoxicity test was performed for compounds 4a, 4b, and 4c, and it was found that these compounds were noncytotoxic at the concentration of their IC50 values. Also, enzyme kinetic and docking studies of compound 4b were performed against MAO-B. It was observed that 4b showed a reversible and noncompetitive inhibition type. The important binding modes of this compound with active site of hMAO-B were shown owing to in silico studies.
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Kakkar S, Tahlan S, Lim SM, Ramasamy K, Mani V, Shah SAA, Narasimhan B. Benzoxazole derivatives: design, synthesis and biological evaluation. Chem Cent J 2018; 12:92. [PMID: 30101384 PMCID: PMC6087707 DOI: 10.1186/s13065-018-0459-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 07/31/2018] [Indexed: 11/16/2022] Open
Abstract
Background A new series of benzoxazole analogues was synthesized and checked for their in vitro antibacterial, antifungal and anticancer activities. Results and discussion The synthesized benzoxazole compounds were confirmed by IR, 1H/13C-NMR, mass and screened for their in vitro antimicrobial activity against Gram-positive bacterium: Bacillus subtilis, four Gram-negative bacteria: Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Salmonella typhi and two fungal strains: Candida albicans and Aspergillus niger using tube dilution technique and minimum inhibitory concentration (MIC) was noted in µM and compared to ofloxacin and fluconazole. Human colorectal carcinoma (HCT116) cancer cell line was used for the determination of in vitro anticancer activity (IC50 value) by Sulforhodamine B assay using 5-fluorouracil as standard drug. Conclusion The performed study indicated that the compounds 1, 10, 13, 16, 19, 20 and 24 had highest antimicrobial activity with MIC values comparable to ofloxacin and fluconazole and compounds 4, 6, 25 and 26 had best anticancer activity in comparison to 5-fluorouracil.![]()
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Affiliation(s)
- Saloni Kakkar
- Faculty of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Sumit Tahlan
- Faculty of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Siong Meng Lim
- Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia.,Collaborative Drug Discovery Research (CDDR) Group, Pharmaceutical Life Sciences Community of Research, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor Darul Ehsan, Malaysia
| | - Kalavathy Ramasamy
- Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia.,Collaborative Drug Discovery Research (CDDR) Group, Pharmaceutical Life Sciences Community of Research, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor Darul Ehsan, Malaysia
| | - Vasudevan Mani
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraidah, 51452, Kingdom of Saudi Arabia
| | - Syed Adnan Ali Shah
- Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia.,Atta-ur-Rahman Institute for Natural Products Discovery (AuRIns), Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia
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NH3(CH2)5NH3BiCl5: an efficient and recyclable catalyst for the synthesis of benzoxazole, benzimidazole and benzothiazole heterocycles. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1465-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Omaka ON, Ekennia AC, Njoku NN, Onwudiwe DC. Nickel(II) and copper(II) complexes of 2,2’-bibenzo[ d
]thiazole: Synthesis, characterisation and biological studies. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Omaka N. Omaka
- Department of Chemistry; Federal University Ndufu-Alike Ikwo (FUNAI); P.M B 1010 Abakaliki Ebonyi State Nigeria
| | - Anthony C. Ekennia
- Department of Chemistry; Federal University Ndufu-Alike Ikwo (FUNAI); P.M B 1010 Abakaliki Ebonyi State Nigeria
| | - Nwaji N. Njoku
- Department of Chemistry; Federal University Ndufu-Alike Ikwo (FUNAI); P.M B 1010 Abakaliki Ebonyi State Nigeria
| | - Damian C. Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology; North-West University (Mafikeng Campus); Private Bag X2046 Mmabatho South Africa
- Department of Chemistry, School of Mathematical and Physical Sciences, Faculty of Agriculture, Science and Technology; North-West University (Mafikeng Campus); Private Bag X2046 Mmabatho 2735 South Africa
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27
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Alghanmi RM, Soliman SM, Basha MT, Habeeb MM. Electronic spectral studies and DFT computational analysis of hydrogen bonded charge transfer complexes between chloranilic acid and 2,5-dihydroxy-p-benzoquinone with 2-amino-4-methylbenzothiazole in methanol. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.02.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Association of riluzole and dantrolene improves significant recovery after acute spinal cord injury in rats. Spine J 2018; 18:532-539. [PMID: 29155254 DOI: 10.1016/j.spinee.2017.10.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 10/15/2017] [Accepted: 10/26/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Damage to the spinal cord can result in irreversible impairment or complete loss of motor, sensory, and autonomic functions. Riluzole and dantrolene have been shown to provide neuroprotection by reducing neuronal apoptosis after brain and spinal cord injury (SCI) in several animal models of neurologic disorders. As these drugs protect the injured spinal cord through different mechanisms, we investigated the cumulative effects of riluzole and dantrolene. PURPOSE This study aimed to investigate the neuroprotective efficacy of the combined administration of riluzole and dantrolene in experimental thoracic SCI. STUDY DESIGN Twenty-nine Wistar rats were laminectomized at T12 and divided in five groups. Rats in GI (n=6) underwent laminectomy alone and were treated with placebo. Rats in GII (n=6) underwent laminectomy followed by SCI and were treated with placebo. Rats in GIII (n=5) underwent laminectomy followed by SCI and were treated with riluzole and placebo 15 minutes and 1 hour after laminectomy, respectively. Rats in GIV (n=6) underwent laminectomy followed by SCI and were treated with placebo and dantrolene 15 minutes and 1 hour after laminectomy, respectively. Rats in GV (n=6) underwent laminectomy followed by SCI and were treated with riluzole and dantrolene 15 minutes and 1 hour after laminectomy, respectively. A compressive trauma was performed to induce SCI. METHODS Behavioral testing of hind limb function was performed using the Basso Beattie Bresnahan locomotor rating scale, which revealed significant recovery in the group treated with the association of riluzole and dantrolene compared with other groups. After euthanasia, the spinal cord was evaluated using light microscopy and immunochemistry with anti-NeuN and transferase dUTP nick-end-labeling (TUNEL) staining. RESULTS Animals treated with the association of riluzole and dantrolene showed a larger number of NeuN-positive neurons adjacent to the epicenter of injury (p≤.05). Furthermore, the TUNEL staining was similar between animals treated with riluzole and dantrolene and those that did not receive spinal cord trauma (p>.05). CONCLUSIONS These results showed that riluzole and dantrolene have a synergistic effect in neuroprotection after traumatic SCI by decreasing apoptotic cell death.
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A benzothiazole/piperazine derivative with acetylcholinesterase inhibitory activity: Improvement in streptozotocin-induced cognitive deficits in rats. Pharmacol Rep 2017; 69:1349-1356. [DOI: 10.1016/j.pharep.2017.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 05/05/2017] [Accepted: 06/16/2017] [Indexed: 01/12/2023]
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30
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Benzthiazoline-2-thione (BTT) revisited: An experimental and theoretical endeavor to understand UV-spectra. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.08.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Daravath S, Kumar MP, Rambabu A, Vamsikrishna N, Ganji N, Shivaraj. Design, synthesis, spectral characterization, DNA interaction and biological activity studies of copper(II), cobalt(II) and nickel(II) complexes of 6-amino benzothiazole derivatives. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Karimian A, Mohammadzadeh Kakhki R, Kargar Beidokhti H. Magnetic Co-doped NiFe2O4Nanocomposite: A Heterogeneous and Recyclable Catalyst for the One-Pot Synthesis of Benzimidazoles, Benzoxazoles and Benzothiazoles under Solvent-Free Conditions. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Azam Karimian
- Department of Chemistry, Faculty of Sciences; University of Gonabad; Gonabad Iran
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Huot P, Sgambato-Faure V, Fox SH, McCreary AC. Serotonergic Approaches in Parkinson's Disease: Translational Perspectives, an Update. ACS Chem Neurosci 2017; 8:973-986. [PMID: 28460160 DOI: 10.1021/acschemneuro.6b00440] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Parkinson's disease (PD) has long been seen as a disorder caused by degeneration of the dopaminergic system, leading to the classic motor manifestations of the disease. However, there is now overwhelming evidence that PD is more than a disease merely caused by dopamine depletion. It is well-known that a myriad of other neurotransmitters are affected by the disease process. One such neurotransmitter is serotonin (5-HT). 5-HT has been shown to play a role in several motor and nonmotor manifestations of PD, including tremor, cognition, depression and psychosis. 5-HT also seems to play a critical role in L-3,4-dihydroxyphenylalanine (L-DOPA)-induced dyskinesia. A breadth of preclinical studies and clinical trials have been conducted that aimed at modulating the 5-HT system in order to alleviate depression, cognitive deficits, psychosis, and dyskinesia. In this Review, we summarize recent advances in the 5-HT field in PD, but with a translational emphasis. We start by presenting a novel nonhuman primate model of PD that presents with dual dopamine and 5-HT lesions. We then present preclinical and clinical data that introduce new concepts, such as the use of biased and partial agonists, as well as molecules recently introduced to the field of PD, such as eltoprazine, pimavanserin, nelotanserin, and SYN-120, to enhance therapeutic benefit while minimizing adverse events, notably on parkinsonian disability.
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Affiliation(s)
- Philippe Huot
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montreal, QC H2X 0A9, Canada
- Department
of Pharmacology, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Unité
des Troubles du Mouvement André Barbeau, Centre Hospitalier de l’Université de Montréal, Montreal, QC H2L 4M1, Canada
- Division
of Neurology, Centre Hospitalier de l’Université de Montréal, Montreal, QC, Canada
| | - Véronique Sgambato-Faure
- Institute of Cognitive
Neuroscience Marc Jeannerod, UMR 5229 CNRS, 69 675 Cedex Bron, France
- University Lyon 1, 69100 Villeurbanne, France
| | - Susan H. Fox
- Movement
Disorder Clinic, Toronto Western Hospital, University of Toronto, Toronto, ON M5T2S8, Canada
| | - Andrew C. McCreary
- Janssen Vaccines & Prevention B.V., Archimedesweg 4, 2333 CN Leiden, The Netherlands
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Non-human primate models of PD to test novel therapies. J Neural Transm (Vienna) 2017; 125:291-324. [PMID: 28391443 DOI: 10.1007/s00702-017-1722-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 04/04/2017] [Indexed: 12/13/2022]
Abstract
Non-human primate (NHP) models of Parkinson disease show many similarities with the human disease. They are very useful to test novel pharmacotherapies as reviewed here. The various NHP models of this disease are described with their characteristics including the macaque, the marmoset, and the squirrel monkey models. Lesion-induced and genetic models are described. There is no drug to slow, delay, stop, or cure Parkinson disease; available treatments are symptomatic. The dopamine precursor, L-3,4-dihydroxyphenylalanine (L-Dopa) still remains the gold standard symptomatic treatment of Parkinson. However, involuntary movements termed L-Dopa-induced dyskinesias appear in most patients after chronic treatment and may become disabling. Dyskinesias are very difficult to manage and there is only amantadine approved providing only a modest benefit. In this respect, NHP models have been useful to seek new drug targets, since they reproduce motor complications observed in parkinsonian patients. Therapies to treat motor symptoms in NHP models are reviewed with a discussion of their translational value to humans. Disease-modifying treatments tested in NHP are reviewed as well as surgical treatments. Many biochemical changes in the brain of post-mortem Parkinson disease patients with dyskinesias are reviewed and compare well with those observed in NHP models. Non-motor symptoms can be categorized into psychiatric, autonomic, and sensory symptoms. These symptoms are present in most parkinsonian patients and are already installed many years before the pre-motor phase of the disease. The translational usefulness of NHP models of Parkinson is discussed for non-motor symptoms.
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Naeimi H, Rouzegar Z, Rahmatinejad S. Catalyst-free microwave-promoted one pot synthesis of 2-aryl benzoxazoles using MnO2 nanoparticles as a convenient oxidant under mild condition. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2909-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yang P, Wang R, Wu H, Du Z, Fu Y. Pd-Catalyzed C−H Arylation of Benzothiazoles with Diaryliodonium Salt: One-Pot Synthesis of 2-Arylbenzothiazoles. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600514] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Peng Yang
- Key Laboratory of Eco-Environment Related Polymer Materials of Ministry of Education; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 P. R. China
| | - Rui Wang
- Key Laboratory of Eco-Environment Related Polymer Materials of Ministry of Education; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 P. R. China
| | - Hui Wu
- Key Laboratory of Eco-Environment Related Polymer Materials of Ministry of Education; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 P. R. China
| | - Zhengyin Du
- Key Laboratory of Eco-Environment Related Polymer Materials of Ministry of Education; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 P. R. China
| | - Ying Fu
- Key Laboratory of Eco-Environment Related Polymer Materials of Ministry of Education; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 P. R. China
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Pirbasti FG, Mahmoodi NO. Green and Highly Efficient Synthesis of Mono- and Bis-Benzothiazoles in the Presence of Fe(SD)3under Ultrasound Irradiation. J CHIN CHEM SOC-TAIP 2016. [DOI: 10.1002/jccs.201600200] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Padalkar VS, Borse BN, Gupta VD, Phatangare KR, Patil VS, Umape PG, Sekar N. Synthesis and antimicrobial activity of novel 2-substituted benzimidazole, benzoxazole and benzothiazole derivatives. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2011.12.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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Tejaswi S, Kumar MP, Rambabu A, Vamsikrishna N, Shivaraj. Synthesis, Structural, DNA Binding and Cleavage Studies of Cu(II) Complexes Containing Benzothiazole Cored Schiff Bases. J Fluoresc 2016; 26:2151-2163. [DOI: 10.1007/s10895-016-1911-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 08/15/2016] [Indexed: 01/17/2023]
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Deffains M, Iskhakova L, Katabi S, Haber SN, Israel Z, Bergman H. Subthalamic, not striatal, activity correlates with basal ganglia downstream activity in normal and parkinsonian monkeys. eLife 2016; 5. [PMID: 27552049 PMCID: PMC5030093 DOI: 10.7554/elife.16443] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/22/2016] [Indexed: 02/02/2023] Open
Abstract
The striatum and the subthalamic nucleus (STN) constitute the input stage of the basal ganglia (BG) network and together innervate BG downstream structures using GABA and glutamate, respectively. Comparison of the neuronal activity in BG input and downstream structures reveals that subthalamic, not striatal, activity fluctuations correlate with modulations in the increase/decrease discharge balance of BG downstream neurons during temporal discounting classical condition task. After induction of parkinsonism with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), abnormal low beta (8-15 Hz) spiking and local field potential (LFP) oscillations resonate across the BG network. Nevertheless, LFP beta oscillations entrain spiking activity of STN, striatal cholinergic interneurons and BG downstream structures, but do not entrain spiking activity of striatal projection neurons. Our results highlight the pivotal role of STN divergent projections in BG physiology and pathophysiology and may explain why STN is such an effective site for invasive treatment of advanced Parkinson's disease and other BG-related disorders. DOI:http://dx.doi.org/10.7554/eLife.16443.001 The symptoms of Parkinson’s disease include tremor and slow movement, as well as loss of balance, depression and problems with sleep and memory. The death of neurons in a region of the brain called the substantia nigra pars compacta is one of the major hallmarks of Parkinson’s disease. These neurons produce a chemical called dopamine, and their death reduces dopamine levels in another area of the brain called the striatum. This structure is one of five brain regions known collectively as the basal ganglia, which form a circuit that helps to control movement. The most effective treatment currently available for advanced Parkinson’s disease entails lowering electrodes deep into the brain in order to shut down the activity of part of the basal ganglia. However, the target is not the striatum; instead it is a structure called the subthalamic nucleus. The striatum and the subthalamic nucleus are the two input regions of the basal ganglia: each sends signals to the other three structures downstream. So why does targeting the subthalamic nucleus, but not the striatum, reduce the symptoms of Parkinson’s disease? To shed some light on this issue, Deffains et al. recorded the activity of neurons in the basal ganglia before and after injecting two monkeys with a drug called MPTP. Related to heroin, MPTP produces symptoms in animals that resemble those of Parkinson’s disease. Before the injections, spontaneous fluctuations in the activity of the subthalamic nucleus produced matching changes in the activity of the three downstream basal ganglia structures. Fluctuations in the activity of the striatum, by contrast, had no such effect. Moreover, injecting the monkeys with MPTP caused the basal ganglia to fire in an abnormal highly synchronized rhythm, similar to that seen in Parkinson’s disease. Crucially, the subthalamic nucleus contributed to this abnormal rhythm, whereas the striatum did not. The results presented by Deffains et al. provide a concrete explanation for why inactivating the subthalamic nucleus, but not the striatum, reduces the symptoms of Parkinson’s disease. Further research is now needed to explore how the striatum controls the activity of downstream regions of the basal ganglia, both in healthy people and in those with Parkinson's disease. DOI:http://dx.doi.org/10.7554/eLife.16443.002
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Affiliation(s)
- Marc Deffains
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel.,The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University, Jerusalem, Israel
| | - Liliya Iskhakova
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel.,The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University, Jerusalem, Israel
| | - Shiran Katabi
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Suzanne N Haber
- Department of Pharmacology and Physiology, University of Rochester School of Medicine, Rochester, United States
| | - Zvi Israel
- Department of Neurosurgery, Hadassah University Hospital, Jerusalem, Israel
| | - Hagai Bergman
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
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Hebade MJ, Kamble RD, Hese SV, Mogle PP, Ambhore AN, Kadam SN, Dawane BS. A rapid, mild, and efficient method for C-5 iodination/thiocyanation of 2-aminothiazoles. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2016.1149851] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Madhav J. Hebade
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, India
| | - Rahul D. Kamble
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, India
| | - Shrikant V. Hese
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, India
| | - Pratima P. Mogle
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, India
| | - Ajay N. Ambhore
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, India
| | - Shuddhodan N. Kadam
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, India
| | - Bhaskar S. Dawane
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, India
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Cho CH, Kim EA, Kim J, Choi SY, Yang SJ, Cho SW. N-Adamantyl-4-methylthiazol-2-amine suppresses amyloid β-induced neuronal oxidative damage in cortical neurons. Free Radic Res 2016; 50:678-90. [PMID: 27002191 DOI: 10.3109/10715762.2016.1167277] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Recently, we have reported that N-adamantyl-4-methylthiazol-2-amine (KHG26693) successfully reduced the production of oxidative stress in streptozotocin-induced diabetic rats and lipopolysaccharide-induced BV-2 microglial cells by increasing their antioxidant capacity. However, antioxidative effects of KHG26693 against Aβ (Aβ)-induced oxidative stress have not yet been reported. In the present study, we further investigated the antioxidative function of KHG26693 in Aβ-mediated primary cultured cortical neurons. We showed here that KHG26693 attenuated Aβ-induced cytotoxicity, increase of Bax/Bcl-2 ratio, elevation of caspase-3 expression, and impairment of mitochondrial membrane potential in cultured primary cortical neurons. KHG26693 also decreases the Aβ-mediated formation of malondialdehyde, reactive oxygen species, and NO production by decreasing nitric oxide synthase (iNOS) and NADPH oxidase level. Moreover, KHG26693 suppress the Aβ-induced oxidative stress through a possible mechanism involving attenuation of GSH and antioxidant enzyme activities such as glutathione reductase and glutathione peroxidase (GPx). Finally, pretreatment of cortical neurons with KHG26693 significantly reduced the Aβ-induced protein oxidation and nitration. To our knowledge, this is the first report, showing that KHG26693 significantly attenuates Aβ-induced oxidative stress in primary cortical neurons, and may prove attractive strategies to reduce Aβ-induced neural cell death.
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Affiliation(s)
- Chang Hun Cho
- a Department of Biochemistry and Molecular Biology , University of Ulsan College of Medicine , Seoul , Republic of Korea
| | - Eun-A Kim
- b Department of Biomedical Laboratory Science , Konyang University , Daejeon , Republic of Korea
| | - Jiae Kim
- a Department of Biochemistry and Molecular Biology , University of Ulsan College of Medicine , Seoul , Republic of Korea
| | - Soo Young Choi
- c Department of Biomedical Science and Research Institute for Bioscience and Biotechnology , Hallym University , Chunchon , Republic of Korea
| | - Seung-Ju Yang
- b Department of Biomedical Laboratory Science , Konyang University , Daejeon , Republic of Korea
| | - Sung-Woo Cho
- a Department of Biochemistry and Molecular Biology , University of Ulsan College of Medicine , Seoul , Republic of Korea
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Naeimi H, Heidarnezhad A. Facile one-pot synthesis of 2-arylbenzothiazoles catalyzed by H 3PO 4/TiO 2-ZrO 2 (1/1) under solvent-free conditions. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1159697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Hossein Naeimi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Arash Heidarnezhad
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
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Asakawa T, Fang H, Sugiyama K, Nozaki T, Hong Z, Yang Y, Hua F, Ding G, Chao D, Fenoy AJ, Villarreal SJ, Onoe H, Suzuki K, Mori N, Namba H, Xia Y. Animal behavioral assessments in current research of Parkinson's disease. Neurosci Biobehav Rev 2016; 65:63-94. [PMID: 27026638 DOI: 10.1016/j.neubiorev.2016.03.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/22/2016] [Accepted: 03/22/2016] [Indexed: 12/21/2022]
Abstract
Parkinson's disease (PD), a neurodegenerative disorder, is traditionally classified as a movement disorder. Patients typically suffer from many motor dysfunctions. Presently, clinicians and scientists recognize that many non-motor symptoms are associated with PD. There is an increasing interest in both motor and non-motor symptoms in clinical studies on PD patients and laboratory research on animal models that imitate the pathophysiologic features and symptoms of PD patients. Therefore, appropriate behavioral assessments are extremely crucial for correctly understanding the mechanisms of PD and accurately evaluating the efficacy and safety of novel therapies. This article systematically reviews the behavioral assessments, for both motor and non-motor symptoms, in various animal models involved in current PD research. We addressed the strengths and weaknesses of these behavioral tests and their appropriate applications. Moreover, we discussed potential mechanisms behind these behavioral tests and cautioned readers against potential experimental bias. Since most of the behavioral assessments currently used for non-motor symptoms are not particularly designed for animals with PD, it is of the utmost importance to greatly improve experimental design and evaluation in PD research with animal models. Indeed, it is essential to develop specific assessments for non-motor symptoms in PD animals based on their characteristics. We concluded with a prospective view for behavioral assessments with real-time assessment with mobile internet and wearable device in future PD research.
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Affiliation(s)
- Tetsuya Asakawa
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu-city, Shizuoka, Japan; Department of Psychiatry, Hamamatsu University School of Medicine, Hamamatsu-city, Shizuoka, Japan.
| | - Huan Fang
- Department of Pharmacy, Jinshan Hospital of Fudan University, Shanghai, China
| | - Kenji Sugiyama
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu-city, Shizuoka, Japan
| | - Takao Nozaki
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu-city, Shizuoka, Japan
| | - Zhen Hong
- Department of Neurology, Huashan Hospital of Fudan University, Shanghai, China
| | - Yilin Yang
- The First People's Hospital of Changzhou, Soochow University School of Medicine, Changzhou, China
| | - Fei Hua
- The First People's Hospital of Changzhou, Soochow University School of Medicine, Changzhou, China
| | - Guanghong Ding
- Shanghai Key Laboratory of Acupuncture Mechanism and Acupoint Function, Fudan University, Shanghai, China
| | - Dongman Chao
- Department of Neurosurgery, The University of Texas McGovern Medical School,Houston, TX, USA
| | - Albert J Fenoy
- Department of Neurosurgery, The University of Texas McGovern Medical School,Houston, TX, USA
| | - Sebastian J Villarreal
- Department of Neurosurgery, The University of Texas McGovern Medical School,Houston, TX, USA
| | - Hirotaka Onoe
- Functional Probe Research Laboratory, RIKEN Center for Life Science Technologies, Kobe, Japan
| | - Katsuaki Suzuki
- Department of Psychiatry, Hamamatsu University School of Medicine, Hamamatsu-city, Shizuoka, Japan
| | - Norio Mori
- Department of Psychiatry, Hamamatsu University School of Medicine, Hamamatsu-city, Shizuoka, Japan
| | - Hiroki Namba
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu-city, Shizuoka, Japan
| | - Ying Xia
- Department of Neurosurgery, The University of Texas McGovern Medical School,Houston, TX, USA.
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Bardajee GR, Mohammadi M, Yari H, Ghaedi A. Simple and efficient protocol for the synthesis of benzoxazole, benzoimidazole and benzothiazole heterocycles using Fe(III)–Schiff base/SBA-15 as a nanocatalyst. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.10.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zolfigol MA, Khazaei A, Alaie S, Baghery S, Maleki F, Bayat Y, Asgari A. Experimental and theoretical approving of anomeric based oxidation in the preparation of 2-sbstituted benz-(imida, oxa and othia)-zoles using [2,6-DMPy-NO2]C(NO2)3 as a novel nano molten salt catalyst. RSC Adv 2016. [DOI: 10.1039/c6ra13231f] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis of [2,6-DMPy-NO2]C(NO2)3 as a novel NMS and its application in the synthesis of 2-sbstituted benz-(imida, oxa and othia)-zoles via a new mechanistic approach was supported by theoretical studies.
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Affiliation(s)
| | - Ardeshir Khazaei
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Saied Alaie
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Saeed Baghery
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Farahnaz Maleki
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Yadollah Bayat
- Faculty of Chemistry and Chemical Engineering
- Malek Ashtar University of Technology
- Tehran
- Iran
| | - Asiye Asgari
- Faculty of Chemistry and Chemical Engineering
- Malek Ashtar University of Technology
- Tehran
- Iran
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Darlot F, Moro C, El Massri N, Chabrol C, Johnstone DM, Reinhart F, Agay D, Torres N, Bekha D, Auboiroux V, Costecalde T, Peoples CL, Anastascio HDT, Shaw VE, Stone J, Mitrofanis J, Benabid AL. Near-infrared light is neuroprotective in a monkey model of Parkinson disease. Ann Neurol 2015; 79:59-75. [PMID: 26456231 DOI: 10.1002/ana.24542] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 10/07/2015] [Accepted: 10/08/2015] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To examine whether near-infrared light (NIr) treatment reduces clinical signs and/or offers neuroprotection in a subacute 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) monkey model of Parkinson disease. METHODS We implanted an optical fiber device that delivered NIr (670 nm) to the midbrain of macaque monkeys, close to the substantia nigra of both sides. MPTP injections (1.5-2.1mg/kg) were made over a 5- to 7-day period, during which time the NIr device was turned on. This was then followed by a 3-week survival period. Monkeys were evaluated clinically (eg, posture, bradykinesia) and behaviorally (open field test), and their brains were processed for immunohistochemistry and stereology. RESULTS All monkeys in the MPTP group developed severe clinical and behavioral impairment (mean clinical scores = 21-34; n = 11). By contrast, the MPTP-NIr group developed much less clinical and behavioral impairment (n = 9); some monkeys developed moderate clinical signs (mean scores = 11-15; n = 3), whereas the majority--quite remarkably--developed few clinical signs (mean scores = 1-6; n = 6). The monkeys that developed moderate clinical signs had hematic fluid in their optical fibers at postmortem, presumably limiting NIr exposure and overall clinical improvement. NIr was not toxic to brain tissue and offered neuroprotection to dopaminergic cells and their terminations against MPTP insult, particularly in animals that developed few clinical signs. INTERPRETATION Our findings indicate NIr to be an effective therapeutic agent in a primate model of the disease and create the template for translation into clinical trials.
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Affiliation(s)
- Fannie Darlot
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Cécile Moro
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Nabil El Massri
- Departments of Anatomy, University of Sydney, Sydney, New South Wales, Australia
| | - Claude Chabrol
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Daniel M Johnstone
- Departments of Physiology, University of Sydney, Sydney, New South Wales, Australia
| | - Florian Reinhart
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Diane Agay
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Napoleon Torres
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Dhaïf Bekha
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Vincent Auboiroux
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Thomas Costecalde
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
| | - Cassandra L Peoples
- Departments of Anatomy, University of Sydney, Sydney, New South Wales, Australia
| | | | - Victoria E Shaw
- Departments of Anatomy, University of Sydney, Sydney, New South Wales, Australia
| | - Jonathan Stone
- Departments of Physiology, University of Sydney, Sydney, New South Wales, Australia
| | - John Mitrofanis
- Departments of Anatomy, University of Sydney, Sydney, New South Wales, Australia
| | - Alim-Louis Benabid
- University Grenoble Alpes, CEA, LETI, CLINATEC, MINATEC Campus, Grenoble, France
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Amoozadeh A, Azadeh RA, Rahmani S, Salehi M, Kubicki M, Dutkiewicz G. Nano-Titania-Supported Sulfonic-Acid-Catalyzed Synthesis of 2-Arylbenzothiazole Derivatives Under Solvent Free Conditions. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2015.1031753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ali Amoozadeh
- Department of Chemistry, Semnan University, Semnan, 35131-19111, Semnan, Iran
| | - Rahmat Allah Azadeh
- Department of Chemistry, Semnan University, Semnan, 35131-19111, Semnan, Iran
| | - Salman Rahmani
- Department of Chemistry, Semnan University, Semnan, 35131-19111, Semnan, Iran
| | - Mehdi Salehi
- Department of Chemistry, Semnan University, Semnan, 35131-19111, Semnan, Iran
| | - Maciej Kubicki
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska, 61-614, Poznan, Poland
| | - Grzegorz Dutkiewicz
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska, 61-614, Poznan, Poland
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Prajapti SK, Nagarsenkar A, Guggilapu SD, Babu BN. B(C6F5)3 as versatile catalyst: an efficient and mild protocol for the one-pot synthesis of functionalized piperidines and 2-substituted benzimidazole derivatives. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.10.074] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chand S, Al-Omary FAM, El-Emam AA, Shukla VK, Prasad O, Sinha L. Study on molecular structure, spectroscopic behavior, NBO, and NLO analysis of 3-methylbezothiazole-2-thione. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:129-41. [PMID: 25813170 DOI: 10.1016/j.saa.2015.03.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/26/2015] [Accepted: 03/05/2015] [Indexed: 10/23/2022]
Abstract
Experimentally observed spectral data (FT-TR and FT-Raman) of 3-methylbezothiazole-2-thione (3MBT2T) were compared with the spectral data obtained by DFT/B3LYP method using 6-311++G(d,p) basis set. UV-Vis spectrum of the title compound was recorded and the electronic properties, such as frontier molecular orbitals and band gap energies were calculated by TD-DFT approach. The molecular properties like dipole moment, polarizability, first static hyperpolarizability, molecular electrostatic potential surface (MEPs), and contour map were calculated to get a better comprehension of the properties of the title molecule. Natural bond orbital (NBO) analysis was applied to investigate the stability of the molecule arising from charge delocalization. Global and local reactivity descriptors were also computed to predict reactivity and reactive sites on the molecule.
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Affiliation(s)
- Satish Chand
- Department of Physics, University of Lucknow, 226007 Lucknow, India
| | - Fatmah A M Al-Omary
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ali A El-Emam
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Vikas K Shukla
- Department of Physics, University of Lucknow, 226007 Lucknow, India
| | - Onkar Prasad
- Department of Physics, University of Lucknow, 226007 Lucknow, India
| | - Leena Sinha
- Department of Physics, University of Lucknow, 226007 Lucknow, India.
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