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Sirohi R, Negi T, Rawat N, Sagar NA, Sindhu R, Tarafdar A. Emerging technologies for the extraction of bioactives from mushroom waste. J Food Sci Technol 2024; 61:1069-1082. [PMID: 38562595 PMCID: PMC10981648 DOI: 10.1007/s13197-023-05855-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 04/04/2024]
Abstract
Extraction of bioactive compounds for application in nutraceuticals is gaining popularity. For this, there is a search for low-cost substrates that would make the end product and the process more economical. Mushroom waste (stalk, cap, stem etc.) is one such high valued substrate that has received much attention recently due to its rich reserves of terpenoids, polyphenols, sesquiterpenes, alkaloids, lactones, sterols, antioxidative vitamins, anthocyanidins, glycoproteins and polysaccharides, among others. However, there is a need to identify green and hybrid technologies that could make the bioactive extraction process from these substrates safe, efficient and sustainable. To this effect, many emerging technologies (supercritical fluid, ultrasound-, enzyme- and microwave-assisted extraction) have been explored in the last decade which have shown potential for scale-up with high productivity. This review systematically discusses such technologies highlighting the current challenges faced during waste processing and the research directives needed for further advancements in the field.
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Affiliation(s)
- Ranjna Sirohi
- College of Horticulture, Rajasthan Agricultural Research Institute, Jaipur, Rajasthan 302 018 India
- Sri Karan Narendra Agriculture University, Jobner, Rajasthan 303329 India
| | - Taru Negi
- Department of Food Science and Technology,, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145 India
| | - Neha Rawat
- Department of Food Science and Technology,, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145 India
| | - Narashans Alok Sagar
- Department of Biotechnology, University Centre for Research and Development, Chandigarh University, Mohali, Punjab India
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam, Kerala 691505 India
| | - Ayon Tarafdar
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243 122 India
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Negi T, Kumar A, Sharma SK, Rawat N, Saini D, Sirohi R, Prakash O, Dubey A, Dutta A, Shahi NC. Deep eutectic solvents: Preparation, properties, and food applications. Heliyon 2024; 10:e28784. [PMID: 38617909 PMCID: PMC11015381 DOI: 10.1016/j.heliyon.2024.e28784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/16/2024] Open
Abstract
Deep Eutectic Solvents (DESs) emerge as innovative 21st-century solvents, supplanting traditional ones like ethanol and n-hexane. Renowned for their non-toxic, biodegradable, and water-miscible nature with reduced volatility, DESs are mostly synthesized through heating and stirring method. Physicochemical properties such as polarity, viscosity, density and surface tension of DESs influenced their application. This review paper gives the overview of application of eco-benign DESs in fruits, vegetables, cereals, pulses, spices, herbs, plantation crops, oil seed crops, medicinal and aromatic plants, seaweed, and milk for the extraction of bioactive compounds. Also, it gives insight of determination of pesticides, insecticides, hazardous and toxic compounds, removal of heavy metals, detection of illegal milk additive, purification of antibiotics and preparation of packaging film. Methodologies for separating bioactive compounds from DESs extracts are systematically examined. Further, safety regulations of DESs are briefly discussed and reviewed literature reveals prevalent utilization of DES-based bioactive compound rich extracts in cosmetics, indicating untapped potential of their application in the food industry.
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Affiliation(s)
- Taru Negi
- Department of Food Science and Technology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Anil Kumar
- Department of Food Science and Technology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Satish Kumar Sharma
- Department of Food Science and Technology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Neha Rawat
- Department of Food Science and Technology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Deepa Saini
- Department of Food Science and Technology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Ranjna Sirohi
- Sri Karan Narendra Agriculture University, Jobner, 303329, Rajasthan, India
| | - Om Prakash
- Department of Chemistry, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Ashutosh Dubey
- Department of Biochemistry, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Anuradha Dutta
- Department of Foods & Nutrition, College of Community Sciences, Pantnagar, 263145, Uttarakhand, India
| | - Navin Chand Shahi
- Department of Post-Harvest Process and Food Engineering, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, India
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Tarafdar A, Sowmya G, Yogeshwari K, Rattu G, Negi T, Awasthi MK, Hoang A, Sindhu R, Sirohi R. Environmental pollution mitigation through utilization of carbon dioxide by microalgae. Environ Pollut 2023; 328:121623. [PMID: 37072107 DOI: 10.1016/j.envpol.2023.121623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/25/2023] [Accepted: 04/09/2023] [Indexed: 05/09/2023]
Abstract
Anthropogenic emissions of CO2 have reached a critical level and the global surface temperature is expected to rise by 1.5 °C between 2030 and 2050. To ameliorate the current global warming scenario, the research community has been struggling to find more economical and innovative solutions for carbon sequestration. Among such techniques, the use of microalgal species such as Chlorella sp., Dunaliella tertiolecta, Spirulina platensis, Desmodesmus sp., and Nannochloropsis sp., among others have shown high carbon tolerance capacity (10-100%) for establishing carbon capture, utilization and storage systems. To make microalgal-based carbon capture more economical, the microalgal biomass (∼2 g/L) can be converted biofuels, pharmaceuticals and nutraceuticals through biorefinery approach with product yield in the range of 60-99.5%. Further, CRISPR-Cas9 has enabled the knockout of specific genes in microalgal species that can be used to generate low pH tolerant strains with high lipid production. Inspite of the emerging developments in pollution control by microalgae, only limited investigations are available on its economic aspects which indicate a production cost of ∼$ 0.5-15/kg microalgal biomass. This review intends to summarize the advancements in different carbon sequestration techniques while highlighting their mechanisms and major research areas that need attention for economical microalgae-based carbon sequestration.
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Affiliation(s)
- Ayon Tarafdar
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly, 243122, Uttar Pradesh, India
| | - G Sowmya
- Department of Biotechnology, School of Applied Sciences, Reva University, Bengaluru, Karnataka, 560064, India
| | - K Yogeshwari
- Department of Biotechnology, School of Applied Sciences, Reva University, Bengaluru, Karnataka, 560064, India
| | - Gurdeep Rattu
- National Horticultural Research and Development Foundation (NHRDF), Nashik-Aurangabad Road, Nashik, Maharashtra, 422003, India
| | - Taru Negi
- Department of Food Science and Technology, G.B. Pant University of Agriculture and Technology, Pantnagar 11 263 145, Uttarakhand, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Shaanxi, 712100, China
| | - AnhTuan Hoang
- Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam 691505, Kerala, India
| | - Ranjna Sirohi
- School of Health Sciences and Technology, UPES, Dehradun, 248007, Uttarakhand, India.
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Singh S, Negi T, Sagar NA, Kumar Y, Tarafdar A, Sirohi R, Sindhu R, Pandey A. Sustainable processes for treatment and management of seafood solid waste. Sci Total Environ 2022; 817:152951. [PMID: 34999071 DOI: 10.1016/j.scitotenv.2022.152951] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/30/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
Seafood processing is an important economical activity worldwide and is an integral part of the food chain system. However, their processing results in solid waste generation whose disposal and management is a serious concern. Proteins, amino acids, lipids with high amounts of polyunsaturated fatty acids (PUFA), carotenoids, and minerals are abundant in the discards, effluents, and by-catch of seafood processing waste. As a result, it causes nutritional loss and poses major environmental risks. To solve the issues, it is critical that the waste be exposed to secondary processing and valorization for recovery of value added products. Although chemical waste treatment technologies are available, the majority of these procedures have inherent flaws. Biological solutions, on the other hand, are safe, efficacious, and ecologically friendly while maintaining the intrinsic bioactivities after waste conversion. Microbial fermentation or the actions of exogenously introduced enzymes on waste components are used in most bioconversion processes. Algal biotechnology has recently developed unique technologies for biotransformation of nutrients, which may be employed as a feedstock for the recovery of important chemicals as well as biofuel. Bioconversion methods combined with a bio-refinery strategy offer the potential to enable environmentally-friendly and cost-effective seafood waste management. The refinement of these wastes through sustainable bioprocessing interventions can give rise to various circular bioeconomies within the seafood processing sector. Moreover, a techno-economic perspective on the developed solid waste processing lines and its subsequent environmental impact could facilitate commercialization. This review aims to provide a comprehensive view and critical analysis of the recent updates in seafood waste processing in terms of bioconversion processes and byproduct development. Various case studies on circular bioeconomy formulated on seafood processing waste along with techno-economic feasibility for the possible development of sustainable seafood biorefineries have also been discussed.
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Affiliation(s)
- Shikhangi Singh
- Department of Post Harvest Process and Food Engineering, G. B. Pant University of Agriculture and Technology, Pantnagar, -263 145, Uttarakhand, India
| | - Taru Negi
- Department of Food Science and Technology(,) G. B. Pant University of Agriculture and Technology, Pantnagar 263 125, Uttarakhand, India
| | - Narashans Alok Sagar
- Food Microbiology Lab, Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India
| | - Yogesh Kumar
- Department of Food Engineering and Technology, Saint Longwal Institute of Engineering and Technology, Longowal, Punjab, India
| | - Ayon Tarafdar
- Livestock Production and Management Section(,) ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India
| | - Ranjna Sirohi
- Department of Chemical & Biological Engineering, Korea University, Seoul 136 713, Republic of Korea; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India.
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute of Interdisciplinary Science and Technology, Trivandrum 695 019, Kerala, India
| | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India; Centre for Innovation and Translational Research, CSIR- Indian Institute for Toxicology Research, Lucknow 226 001, Uttar Pradesh, India; Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun 248 007, Uttarakhand, India.
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Negi T, Kumar Y, Sirohi R, Singh S, Tarafdar A, Pareek S, Kumar Awasthi M, Alok Sagar N. Advances in bioconversion of spent tea leaves to value-added products. Bioresour Technol 2022; 346:126409. [PMID: 34838972 DOI: 10.1016/j.biortech.2021.126409] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
Spent tea leaves (STL) are generated after the extraction of liquor from processed tea leaves and are regarded as an underutilized waste. STL are rich in essential amino acids, ω-6 and ω-3 fatty acids, alkaloids (theobromine and caffeine), polyphenols (catechin, theaflavins and rutin) and minerals (Ca, P, K, Mg, Mn) that could be utilized for the production of industrially important products. Vermicomposting, anaerobic digestion, silage preparation and fermentation are currently used as low cost methods for the bioconversion of STL to a usable form. Structural, morphological and chemical modification of STL after suitable bioconversion enables its application in the development of biopolymers, biofuels, catechin derivatives, biochar, absorbents for dye, and for removal of Cd, Hg, Cr(IV), As(V) and aspirin. This review discusses the composition, characterization, bioconversion and value added product generation from STL while highlighting prospective applications of STL in developing battery electrodes, nanocatalysts, insulation materials and edible bioactive peptides.
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Affiliation(s)
- Taru Negi
- Department of Food Science and Technology, G. B. Pant University of Agriculture and Technology, Pantnagar 263 145, Uttarakhand, India
| | - Yogesh Kumar
- Department of Food Engineering and Technology, Sant Longowal Institute of Engineering and Technology, 148 106, Punjab, India
| | - Ranjna Sirohi
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea; Centre for Energy and Environmental Sustainability, Lucknow-226 029, Uttar Pradesh, India
| | - Shikhangi Singh
- Department of Post Harvest Process and Food Engineering, G. B. Pant University of Agriculture and Technology, Pantnagar 263 145, Uttarakhand, India
| | - Ayon Tarafdar
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India
| | - Sunil Pareek
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Sonipat 131 028, Haryana, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Narashans Alok Sagar
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Sonipat 131 028, Haryana, India; Food Microbiology Lab, Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India.
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Tarafdar A, Sirohi R, Negi T, Singh S, Badgujar PC, Chandra Shahi N, Kumar S, Jun Sim S, Pandey A. Nanofluid research advances: Preparation, characteristics and applications in food processing. Food Res Int 2021; 150:110751. [PMID: 34865769 DOI: 10.1016/j.foodres.2021.110751] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 09/06/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022]
Abstract
There has been growing interest and substantial improvement in thermal processes for enhancing the heat transfer rate in food industry applications. The replacement of conventional heat transfer fluids with nanofluids is now being considered as a novel and emerging solution to the heat transfer problem of the food processing sector. This review covers state-of-the-art methods for production and application of these nanofluids with emphasis on the decontamination of liquid foods. The review also discusses the influence of processing conditions such as temperature and nanoparticle concentration on the thermal and viscous characteristics of the developed nanofluids. Further, the effect of these developed nanofluids on the quality attributes of food materials has also been reviewed and analyzed. Based on the current technological status, certain knowledge gaps in nanofluid research have been identified, including controlled (shape and size) and systematic experimental studies, stability of nanofluids with increasing thermal cycles, increasing the compatibility of base fluid to nanomaterials, and toxicity and environmental impact assessment.
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Affiliation(s)
- Ayon Tarafdar
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, India.
| | - Ranjna Sirohi
- Department of Biological and Chemical Engineering, Korea University, Seoul, South Korea; Centre for Energy and Environmental Sustainability, Lucknow 226 029, India.
| | - Taru Negi
- Department of Food Science and Technology, G. B. Pant University of Agricultural and Technology, Pantnagar 263 145, India.
| | - Shikhangi Singh
- Department of Food Science and Technology, G. B. Pant University of Agricultural and Technology, Pantnagar 263 145, India.
| | - Prarabdh C Badgujar
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management, Sonipat 131 028, India.
| | - Navin Chandra Shahi
- Department of Post Harvest Process and Food Engineering, G. B. Pant University of Agricultural and Technology, Pantnagar 263 145, India.
| | - Sunil Kumar
- Technology Development Centre, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, India.
| | - Sang Jun Sim
- Department of Biological and Chemical Engineering, Korea University, Seoul, South Korea.
| | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow 226 029, India; Center for Innovation and Translational Research, CSIR- Indian Institute of Toxicology Research, Lucknow 226 001, India.
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Sirohi R, Tarafdar A, Singh S, Negi T, Gaur VK, Gnansounou E, Bharathiraja B. Green processing and biotechnological potential of grape pomace: Current trends and opportunities for sustainable biorefinery. Bioresour Technol 2020; 314:123771. [PMID: 32653247 DOI: 10.1016/j.biortech.2020.123771] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
Grape pomace is a high quality biodegradable residue of the winery industry. It is comprised of grape seed, skin and stalks, and is blessed with substantial quantities of phenols, flavonoids and anthocyanins with high antioxidant potential. Currently, there is huge emphasis on the isolation of bioactive molecules of grape pomace using green technologies such as microwave, ultrasound, supercritical fluids, high voltage discharge, enzymatic methods and other hybrid techniques. The major applications of these bioactives are contemplatedas nutraceuticals and extension in shelf-life of perishable foodstuffs. Alternatively, the crude form of grape pomace residues can be used for the production of energy, biofertilizers, biochar, biopolymers, composites, feed for ruminants and also, mushroom cultivation through microbial processing. This review discusses value-addition to grape pomace through biotechnological interventions and green processing, providing state-of-art knowledge on current scenario and opportunities for sustainability.
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Affiliation(s)
- Ranjna Sirohi
- Department of Postharvest Process and Food Engineering, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145, India.
| | - Ayon Tarafdar
- Division of Livestock Production and Management, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly, Uttar Pradesh 243 122, India
| | - Shikhangi Singh
- Department of Postharvest Process and Food Engineering, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145, India
| | - Taru Negi
- Department of Food Science and Technology, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145, India
| | - Vivek Kumar Gaur
- Environmental Biotechnology Division, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow 226 001, India; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | - Edgard Gnansounou
- Bioenergy and Energy Planning Research Group, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - B Bharathiraja
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600 062, India
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Nakamura T, Miyamoto O, Sumitani K, Negi T, Itano T, Nagao S. Do rapid systemic changes of brain temperature have an influence on the brain? Acta Neurochir (Wien) 2003; 145:301-7. [PMID: 12748891 DOI: 10.1007/s00701-002-1065-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND The purpose of the present study was to examine the influence of cooling and rewarming conditions using an accurate brain temperature control system. METHOD The brain temperature of animals was measured with a thermometer while feedback regulation was achieved with a cold (4( degrees )C) and hot (50( degrees )C) water on-off flow system. Brain temperature was well controlled throughout the experiment by using both cold water and hot water simultaneously. Three groups were studied, as follows: 1) the standard group (cooled to 24( degrees )C for 1 hour, kept at 24( degrees )C for 2 hours and rewarmed to 37( degrees )C for 1 hour), 2) the rapid-cooling group (cooled to 24( degrees )C for 30 min, kept at 24( degrees )C for 2 h, and rewarmed to 37( degrees )C for 1 h), 3) the rapid-rewarming group (cooled to 24( degrees )C for 1 h, kept at 24( degrees )C for 2 h, and rewarmed to 37( degrees )C for 30 min) and the normal-control group. FINDINGS An increase of MAP-2 immunoreactivity of the CA1 neurons in the dorsal hippocampus was observed one week but not one month after hypothermia in the rapid-rewarming group. There was also a significant increase in the glutamate and lactate value at the end of rewarming compared with the baseline in the rapid-rewarming group (p<0.01). INTERPRETATION Our results suggest that rapid rewarming after hypothermia triggered an uncoupling of cerebral circulation and metabolism, inducing an increase of extracellular glutamate and lactate, consequently reversible neuronal cell damage.
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Affiliation(s)
- T Nakamura
- Department of Neurological Surgery, Kagawa Medical University, Ikenobe, Kagawa, Japan
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Nakamura T, Miyamoto O, Kawai N, Negi T, Itano T, Nagao S. Long-term activation of the glutamatergic system associated with N-methyl-D-aspartate receptors after postischemic hypothermia in gerbils. Neurosurgery 2001; 49:706-13; discussion 713-4. [PMID: 11523683 DOI: 10.1097/00006123-200109000-00032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE The objective of this study was to investigate whether hypothermia would suppress secondary damage in the chronic postischemic stage, in terms of glutamate excitotoxicity. METHODS Gerbils underwent 5 minutes of ischemia via bilateral common carotid artery occlusion. Seven groups were studied, as follows: 1) ischemia without treatment group; 2) intraischemic hypothermia group; 3) postischemic hypothermia group (32 degrees C for 4 h); 4) MK-801 treatment group (2 mg/kg, every other day for 1 mo); 5) postischemic hypothermia with MK-801 treatment for 1 week group (2 mg/kg, every other day); 6) postischemic hypothermia with MK-801 treatment for 1 month group (2 mg/kg, every other day); and 7) sham-treated control group. One month after ischemia, histological changes in hippocampal CA1 neurons (assessed using hematoxylin and eosin staining) and memory function (assessed using an eight-arm radial maze) were studied. Extracellular glutamate concentrations were monitored by microdialysis during ischemia and hypothermia. Staining of microglia was performed 1 week and 1 month after ischemia. RESULTS MK-801 alone, postischemic hypothermia alone, and postischemic hypothermia with MK-801 treatment for 1 week failed to prevent ischemic neuronal damage and memory function decreases 1 month after the insult (P < 0.05 versus control). However, the postischemic hypothermia with MK-801 treatment for 1 month group exhibited significant protective effects (not significant [P > 0.05] compared with the control group). Extracellular glutamate levels for the intraischemic hypothermia group were significantly low, compared with the postischemic hypothermia group. There was no microglial activation in the postischemic hypothermia at 1 week and 1 month after ischemia groups. CONCLUSION Postischemic hypothermia and long-term intermittent administration of MK-801 demonstrated significant neuronal protection, indicating that long-term glutamatergic activation, with changes in N-methyl-D-aspartate receptors, plays a role in neuronal damage in the chronic postischemic stage.
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Affiliation(s)
- T Nakamura
- Department of Neurological Surgery, Kagawa Medical University, Japan
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Miyamoto O, Nakamura T, Yamagami S, Negi T, Tokuda M, Matsui H, Itano T. Depression of long term potentiation in gerbil hippocampus following postischemic hypothermia. Brain Res 2000; 873:168-72. [PMID: 10915827 DOI: 10.1016/s0006-8993(00)02521-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
To investigate the mechanism of chronic cell death following postischemic hypothermia, the change of N-methyl-D-aspartate receptor (NMDAR) were examined by immunohistochemistry of NMDAR1 and long-term potentiation (LTP) in the CA1 subfield of the gerbil hippocampus. At 1 week following postischemic hypothermia (32 degrees Cx4 h), all CA1 neurons survived; however, immunoreactivity of NMDAR1 increased in neuronal perikarya whereas decreased in dendrites in the CA1 neurons. The abnormality was still observed in remaining CA1 neurons at 1 month after hypothermia. LTP was also significantly depressed at 1 week after hypothermia. These results suggest that some abnormalities in the glutamate receptor may be caused by ischemia; such abnormality would persist in spite of hypothermia treatment, resulting in the depression of LTP.
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Affiliation(s)
- O Miyamoto
- Department of Biology, Kagawa Medical University, Miki-cho, Japan
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Miyamoto O, Sumitani K, Nakamura T, Yamagami S, Miyata S, Itano T, Negi T, Okabe A. Clostridium perfringens epsilon toxin causes excessive release of glutamate in the mouse hippocampus. FEMS Microbiol Lett 2000; 189:109-13. [PMID: 10913875 DOI: 10.1111/j.1574-6968.2000.tb09215.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The mechanism of neurotoxicity of Clostridium perfringens epsilon toxin to the mouse brain was investigated. Intravenous injection in mice with the toxin caused seizure and excited hippocampal neurons. Microdialysis revealed that epsilon toxin induced excessive glutamate release in the hippocampus. Both the seizure and glutamate release were attenuated by prior injection with riluzole, an inhibitor of pre-synaptic glutamate release, suggesting that this toxin enhances glutamate efflux, leading to seizure and hippocampal neuronal damage.
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Affiliation(s)
- O Miyamoto
- Department of Biology, Kagawa Medical University, Japan
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Nakamura T, Miyamoto O, Yamagami S, Toyoshima T, Negi T, Itano T, Nagao S. The chronic cell death with DNA fragmentation after post-ischaemic hypothermia in the gerbil hippocampus. Acta Neurochir (Wien) 1999; 141:407-12; discussion 412-3. [PMID: 10352751 DOI: 10.1007/s007010050317] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The long-term effects of post-ischaemic hypothermia are controversial. The purpose of this study was to examine the long-term effects of post-ischaemic hypothermia on neuronal survival in gerbils in terms of morphology and function. Hypothermia was induced at 32 degrees C for 4 h immediately after ischaemia. Examination was performed at 1 week and at 1 month after ischaemia. Post-ischaemic hypothermia prevented CA1 neuronal damage 1 week after ischaemia. At 1 month after ischaemic insult, however, the degree of the protective effect of post-ischaemic hypothermia was reduced in the lateral and medial CA1 areas. DNA fragmentation was also observed at 1 month. The errors in the 8-arm radial maze trial were increased at 1 month. These data may indicate that cells in the CA1 area are very vulnerable to ischaemia and die after post-ischaemic hypothermia, and that their death is associated with apoptosis.
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Affiliation(s)
- T Nakamura
- Department of Neurological Surgery, Kagawa Medical University, Japan
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13
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Yamagami S, Miyamoto O, Nakamura T, Okada Y, Negi T, Hayashida Y, Nagao S, Itano T. Suppression of hyperemia after brain ischemia by L-threo-3,4-dihydroxyphenylserine. Neuroreport 1998; 9:2939-43. [PMID: 9804294 DOI: 10.1097/00001756-199809140-00004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Although several studies have shown that L-threo3,4-dihydroxyphenylserine (DOPS) may provide a neuroprotective effect against ischemic brain damage, its protective mechanism is not fully understood. Glutamate release and hippocampal blood flow in ischemia with administration of DOPS were investigated to elucidate the neuroprotective mechanism of DOPS. Pre- (but not post-) ischemic administration of DOPS rescued 73% of hippocampal CA1 neurons (p < 0.001, compared with ischemia only) 1 week after transient global ischemia in gerbils. While glutamate release induced by ischemia was not affected, the increase of hippocampal blood flow during reperfusion was significantly suppressed by DOPS. These results demonstrate that DOPS may prevent reperfusion injury by suppression of hyperemia after ischemia, resulting in neuroprotection.
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Affiliation(s)
- S Yamagami
- Department of Physical Education, Kagawa University, Takamatsu, Japan
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14
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Miyamoto O, Minami J, Toyoshima T, Nakamura T, Masada T, Nagao S, Negi T, Itano T, Okabe A. Neurotoxicity of Clostridium perfringens epsilon-toxin for the rat hippocampus via the glutamatergic system. Infect Immun 1998; 66:2501-8. [PMID: 9596708 PMCID: PMC108230 DOI: 10.1128/iai.66.6.2501-2508.1998] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The neurotoxicity of epsilon-toxin, one of the major lethal toxins produced by Clostridium perfringens type B, was studied by histological examination of the rat brain. When the toxin was injected intravenously at a lethal dose (100 ng/kg), neuronal damage was observed in many areas of the brain. Injection of the toxin at a sublethal dose (50 ng/kg) caused neuronal damage predominantly in the hippocampus: pyramidal cells in the hippocampus showed marked shrinkage and karyopyknosis, or so-called dark cells. The dark cells lost the immunoreactivity to microtubule-associated protein-2, a postsynaptic somal and dendric marker, while acetylcholinesterase-positive fibers were not affected. Timm's zinc staining revealed that zinc ions were depleted in the mossy layers of the CA3 subfield containing glutamate as a synaptic transmitter. The cerebral blood flow in the hippocampus was not altered significantly before or after administration of the toxin, as measured by laser-Doppler flowmetry, excluding the possibility that the observed histological change was due to a secondary effect of ischemia in the hippocampus. Prior injection of either a glutamate release inhibitor or a glutamate receptor antagonist protected the hippocampus from the neuronal damage caused by epsilon-toxin. These results suggest that epsilon-toxin acts on the glutamatergic system and evokes excessive release of glutamate, leading to neuronal damage.
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Affiliation(s)
- O Miyamoto
- Departments of Biology, Kagawa Medical University, Ikenobe, Kagawa 761-0793, Japan
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15
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Shimada M, Negi T, Itano T, Hayasaki H, Konishi M, Watanabe M, Murakami TH. Changes in the spine density on apical dendrites of pyramidal neurons in the motor area of the cerebral cortex after callosotomy: a study by a modified Golgi-Cox method in the mouse. Kaibogaku Zasshi 1997; 72:545-52. [PMID: 9465558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Changes in the number of spines on apical dendrites of pyramidal neurons in layers III and V of the motor area of the cerebral cortex were examined in the young adult mice (30-60 days old) by a modified Golgi-Cox method and laser scanning microscopy on the 1st, 6th, 10th and 12th days after callosotomy. The anterior part of the callosal body, including rostrum, genu and truncus corporis callosi, was sectioned with a razor blade. The numbers of spines on apical dendrites and their oblique branches of pyramidal neurons were counted at the level of layer II for layer III pyramidal neurons and at the level of layer III for layer V pyramidal neurons. The density of spines was increased on all these dendritic parts during 10 days after callosotomy; the diameters of spine stems and dendrites were also increased. These changes, however, appeared to be transient as they were decreased almost to normal level on the 12th day after callosotomy.
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Affiliation(s)
- M Shimada
- Department of Anatomy, Osaka Medical College, Japan
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16
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Shimada M, Negi T, Itano T, Tamayama T, Murakami TH. Forelimb muscle contraction induced by cerebral cortical stimulation after callosotomy: a myographic study in the mouse. Kaibogaku Zasshi 1997; 72:215-218. [PMID: 9251298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The effect of callosotomy upon motor control by the cerebral cortex on the forelimb was examined in the mouse. On the 10th day after callosotomy in the rostral or caudal part of the corpus callosum, the forelimb area of the cerebral motor cortex was stimulated intracortically with a microelectrode and muscle contraction of the forelimb was recorded by electromyography. Muscle contraction was observed in the contralateral forelimb in the mice of which callosal fibers were cut in the caudal part of the corpus callosum including the splenium corporis callosi as well as in the normal mice. On the other hand, muscle contraction was observed in the ipsilateral forelimb in the mice of which callosal fibers were incised in the rostral part of the corpus callosum including the genu, rostrum and trunk. The latency of the muscle contraction was about 0.5 msec in the both groups of the callosotomized mice, as well as in the normal mice.
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Affiliation(s)
- M Shimada
- Department of Anatomy, Osaka Medical College, Takatsuki City Osaka, Japan
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Hosokawa J, Itano T, Usuki T, Tokuda M, Matsui H, Janjua NA, Suwaki H, Okada Y, Negi T, Murakami TH. Morphological changes in the hippocampus in amygdaloid kindled mouse. Epilepsy Res 1995; 20:11-20. [PMID: 7713056 DOI: 10.1016/0920-1211(94)00058-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
To clarify the origin and maintenance of epileptogenesis, morphological changes in the hippocampus of amygdaloid-kindled mice were analyzed at different stages of kindling. The granule cell size in dentate gyrus and the pyramidal cell size in CA1 were clearly decreased depending on seizure stage. The cell size in CA2 was increased and density in dentate gyrus and CA2 was reduced, significantly. The morphological changes in hippocampus associated with kindling must be closely related to the acquisition and the maintenance of epileptogenesis. The results support the hypothesis that seizure-induced damage of neurons may lead to formation of new synaptic connections that produce abnormal hyperexitability and result in seizures.
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Affiliation(s)
- J Hosokawa
- Dept. of Physiology, Kagawa Medical School, Japan
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Abstract
The corticospinal projections of mice with callosal agenesis were investigated using electro-physiological and horseradish peroxidase techniques. In the normal mouse, intracortical stimulation of the motor area with the microelectrode resulted in contralateral contraction of the forelimb, whereas ipsilateral contraction was observed in the acallosal mouse. Hence, mice with congenital absence of the corpus callosum show physiologically ipsilateral motor control. Furthermore, latency of the forelimb contraction elicited by electrical stimulation of the acallosal mouse was slightly shorter than that of the normal mouse. On the other hand, it was confirmed by a horseradish peroxidase technique that the corticospinal tract and peripheral motor neurons in the spinal cord of the acallosal mouse were identical to those of the normal mouse.
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Affiliation(s)
- Y Nakatsuka
- Department of Anatomy, Osaka Medical College, Japan
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Yamamoto Y, Itano T, Miyamoto O, Tokuda M, Matsui H, Janjua NA, Suwaki H, Okada Y, Negi T, Murakami TH. Effect of ceruletide on epileptogenesis in amygdaloid kindled rats. Brain Res 1993; 630:353-6. [PMID: 8118705 DOI: 10.1016/0006-8993(93)90678-g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The inhibitory effects of ceruletide (CLT), a cholecystokinin-8 (CCK)-like peptide, were investigated in the epileptogenesis in the amygdaloid kindled rats. Lower doses of CLT (20-80 micrograms/kg) inhibited the progression of kindling process. After acquiring C5 stage, a higher dose (160 micrograms/kg) was required to suppress the seizure susceptibility. These results, in light of several previous studies showing no serious side effects, suggest that CLT might be useful as an anti-epileptogenic agent for clinical usage.
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Affiliation(s)
- Y Yamamoto
- Department of Physiology, Kagawa Medical School, Japan
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Fujisawa M, Miyamoto O, Itano T, Tokuda M, Matsui H, Nagao S, Negi T, Hatase O. Ceruletide suppresses rotational behavior in lesioned rats via CCKA receptors. Eur J Pharmacol 1993; 238:127-30. [PMID: 8405076 DOI: 10.1016/0014-2999(93)90516-k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The effects and pharmacological mechanisms underlying the inhibiting effect of ceruletide, a cholecystokinin (CCK)-related peptide, on apomorphine-induced turning behavior in 6-hydroxydopamine lesioned rats were investigated. For this purpose, selective CCKA and CCKB receptor antagonists were used. Ceruletide (50-400 micrograms/kg, s.c.) dose dependently suppressed apomorphine-induced rotational behavior. The antiapomorphine effect of ceruletide was reversed by the selective CCKA receptor antagonist, devazepide, but not by the selective CCKB receptor antagonist, L-365,260. This suggests that the suppression ceruletide exerts on hyperactive nigrostriatal dopamine neurons is mediated by CCKA receptors.
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Affiliation(s)
- M Fujisawa
- Department of Neurosurgery, Kagawa Medical School, Japan
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Miyamoto O, Itano T, Yamamoto Y, Tokuda M, Matsui H, Janjua NA, Suwaki H, Okada Y, Murakami TH, Negi T. Effect of embryonic hippocampal transplantation in amygdaloid kindled rat. Brain Res 1993; 603:143-7. [PMID: 8453471 DOI: 10.1016/0006-8993(93)91312-g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Embryonic neural tissue was transplanted into previously kindled rats. A thirteen- to fourteen-day embryonic hippocampal cell suspension was grafted in the stratum oriens near the CA2 area of the hippocampus. Almost 80% of the animals had a good recovery and became seizure-free. Injection of neocortical cells or saline did not show any positive effect on the kindling susceptibility. Although 20 day embryonic cell transplantation was also effective, the effect did not last as long as the 13- to 14-day embryonic transplantation. These observations open the possibility that the neural grafts may be used for therapy of medically intractable epilepsies.
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Affiliation(s)
- O Miyamoto
- Dept of Physiology, Kagawa Medical School, Japan
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Minamoto Y, Itano T, Tokuda M, Matsui H, Janjua NA, Hosokawa K, Okada Y, Murakami TH, Negi T, Hatase O. In vivo microdialysis of amino acid neurotransmitters in the hippocampus in amygdaloid kindled rat. Brain Res 1992; 573:345-8. [PMID: 1354551 DOI: 10.1016/0006-8993(92)90786-9] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Extracellular concentrations of gamma-aminobutyric acid (GABA), glutamate (Glu) and aspartate (Asp) were determined by microdialysis in rat hippocampus during various amygdaloid kindled stages. The values of GABA and Glu were increased 3-4 times in C2-C3 stages in comparison with the values in control animals. After reaching the C5 stages, these values were increased 3-7 times. However, the concentration of Asp decreased depending on the kindling stage, reaching the lowest value of 33% in comparison with the normal value. The observed changes may be related to kindling induced seizures.
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Affiliation(s)
- Y Minamoto
- Department of Physiology, Kagawa Medical School, Japan
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Matuo Y, Nishi N, Negi T, Tanaka Y, Wada F. Isolation and characterization of androgen-dependent non-histone chromosomal protein from dorsolateral prostate of rats. Biochem Biophys Res Commun 1982; 109:334-40. [PMID: 7181921 DOI: 10.1016/0006-291x(82)91725-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Matuo Y, Nishi N, Negi T, Wada F. Difference in androgen-dependent change of non-histone proteins between dorsolateral and ventral prostates of rats. Biochem Biophys Res Commun 1982; 107:209-16. [PMID: 7126203 DOI: 10.1016/0006-291x(82)91690-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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25
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Kayama Y, Negi T, Sugitani M, Iwama K. Effects of locus coeruleus stimulation on neuronal activities of dorsal lateral geniculate nucleus and perigeniculate reticular nucleus of the rat. Neuroscience 1982; 7:655-66. [PMID: 6280101 DOI: 10.1016/0306-4522(82)90071-9] [Citation(s) in RCA: 101] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In rats anesthetized with urethane, a stimulating electrode was introduced to the locus coeruleus by observing the antidromic field response to single shock stimulation of the dorsal pathway of noradrenergic axons. Effects of locus coeruleus stimulation were studied on activities of relay neurons and intrinsic interneurons of the dorsal lateral geniculate nucleus and on those of neurons in the perigeniculate reticular nucleus. The intrinsic interneurons and the perigeniculate reticular neurons are believed to exert inhibition upon the relay neurons. The relay neurons were activated by repetitive stimulation of locus coeruleus; spontaneous discharges were increased in rate and the threshold of response to single shock stimulation of the optic nerve was lowered. The activation was rarely seen in rats pretreated with alpha-methyl-p-tyrosine. Iontophoretic application of phentolamine, an alpha-blocker, effectively antagonized the activation, whereas an iontophoretic beta-blocker and cholinergic blockers were virtually ineffective. The activation of the relay neurons was suggested to be due to a direct action of noradrenaline, released by locus coeruleus stimulation. Locus coeruleus stimulation inhibited the interneurons and activated the perigeniculate reticular neurons; spontaneous or light-evoked discharges were suppressed in the interneurons and tonic discharges were elicited in the perigeniculate reticular neurons. These effects of locus coeruleus stimulation were mimicked by noradrenaline applied iontophoretically. Activation of the perigeniculate reticular neurons was antagonized by an iontophoretic alpha-blocker but not by a beta-blocker. Two special features emerge from the present results: (1) the locus coeruleus exerts different effects upon the two neuronal constituents of the dorsal lateral geniculate nucleus, excitation of the relay neurons and inhibition of the intrinsic interneurons; (2) a suggestion previously advocated that locus-coeruleus-induced excitation of the lateral geniculate relay neurons would be due to inhibition of inhibitory neurons (disinhibition) does not hold true, at least with respect to the perigeniculate reticular neurons; the latter neurons have been proved to exert a powerful inhibition upon the geniculate relay neurons and they are excited by stimulation of the locus coeruleus.
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Yamaguchi Y, Niwa K, Negi T. [Proceedings: 329. Psychophysiological study of concentration of attention connected with the theta waves in the frontal NEGs as its index (author's transl)]. Nihon Seirigaku Zasshi 1973; 35:520-1. [PMID: 4799897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Negi T, Samejima T, Irie M. Studies on yeast inorganic pyrophosphatase modification of sulfhydryl groups by 5,5'-dithiobis(2-nitrobenzoic acid). J Biochem 1971; 70:359-63. [PMID: 5094214 DOI: 10.1093/oxfordjournals.jbchem.a129648] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Irie M, Yabuta A, Negi T, Tomita K. Hydrolysis of nucleoside di- and tri-phosphates by alkaline inorganic pyrophosphatases of rat liver and yeast. J Biochem 1970; 67:59-63. [PMID: 5416894 DOI: 10.1093/oxfordjournals.jbchem.a129234] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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