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Sayson LV, Jeon SJ, Ortiz DM, Lee HJ, Campomayor NB, Kim HJ, Kim M. Heukharang ( Lactuca sativa L.) extracts enhanced the sleep behavior of mice: potential involvement of adenosine A 1 and A 2A receptors. Sleep Biol Rhythms 2024; 22:385-394. [PMID: 38962793 PMCID: PMC11217248 DOI: 10.1007/s41105-024-00522-3] [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: 12/21/2023] [Accepted: 02/27/2024] [Indexed: 07/05/2024]
Abstract
A significant proportion of the world's population suffers from insomnia, a disorder characterized by complications in initiating and maintaining sleep. Many medications used to treat insomnia target the γ-aminobutyric acid (GABA) neurotransmitter system. However, these substances, such as benzodiazepines, induce significant adverse consequences, including dependence and memory impairment, after prolonged use. Thus, current studies are aimed at developing therapeutic hypnotics derived from natural sources that may cause less severe side effects. Heukharang is a variety of lettuce from Korea that was discovered to contain sleep-promoting compounds. Therefore, we investigated the potential effects of sub-chronic administration of Heukharang extract (FSD-LS) on sleep behavior (pentobarbital-induced sleeping test), brain wave activity and sleep architecture (electroencephalography), and physiological behavior (open-field test and rota-rod) in mice, along with radioligand binding assays (GABAA, adenosine A1 and A2A receptors). We found that FSD-LS prolonged the total sleep duration and reduced the onset time of sleep, and enhanced delta wave power and non-rapid eye movement (NREM) sleep duration, all indicating persistent sleep-enhancing effects. FSD-LS lacked adverse effects on the spontaneous locomotor activity and motor coordination of mice, unlike diazepam. Pharmacological blocking using caffeine and bicuculline supported the possible involvement of adenosine receptors in the sleep-promoting effects of FSD-LS, with partial contribution from GABA receptor activity. Overall, our study recommends FSD-LS as a potential source for the development of sleep-aiding therapeutics.
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Affiliation(s)
- Leandro Val Sayson
- Department of Pharmacy, Uimyung Research Institute for Neuroscience, Sahmyook University, 815 Hwarang-ro, Nowon-gu, Seoul, 01795 Republic of Korea
| | - Se Jin Jeon
- Department of Pharmacology, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, Gangwon-do 24252 Republic of Korea
| | - Darlene Mae Ortiz
- Department of Pharmacy, Uimyung Research Institute for Neuroscience, Sahmyook University, 815 Hwarang-ro, Nowon-gu, Seoul, 01795 Republic of Korea
- College of Pharmacy, Dongduk Women’s University, 60 Hwarang-ro, Seongbuk-gu, Seoul, 02748 Republic of Korea
| | - Hyun Jun Lee
- Department of Pharmacy, Uimyung Research Institute for Neuroscience, Sahmyook University, 815 Hwarang-ro, Nowon-gu, Seoul, 01795 Republic of Korea
| | - Nicole Bon Campomayor
- Department of Chemistry & Life Science, Sahmyook University, 815 Hwarang-ro, Nowon-gu, Seoul, 01795 Republic of Korea
| | - Hee Jin Kim
- Department of Pharmacy, Uimyung Research Institute for Neuroscience, Sahmyook University, 815 Hwarang-ro, Nowon-gu, Seoul, 01795 Republic of Korea
| | - Mikyung Kim
- Department of Chemistry & Life Science, Sahmyook University, 815 Hwarang-ro, Nowon-gu, Seoul, 01795 Republic of Korea
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Wang C, Huang X, Tang Z, Zhang Y, Wei M, Du S, Song X, Wu Y, Chi Q, Zhuang X, Lina D, Jin Y. Dissolving microneedles loaded with nimodipine for prevention of sleep disorders at a high altitude. Pharm Dev Technol 2024; 29:415-428. [PMID: 38626316 DOI: 10.1080/10837450.2024.2342965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/10/2024] [Indexed: 04/18/2024]
Abstract
Sleep disorders are one of the most common acute reactions on the plateau, which can cause serious complications. However, there is no effective and safe treatment currently available. Nimodipine (NMD) is a dihydropyridine calcium channel blocker with neuroprotective and vasodilating activity, mainly used for the treatment of ischemic brain injury. Commercial oral or injectable NMD formulations are not a good option for central neuron diseases due to their poor brain delivery. In this study, nimodipine dissolving microneedles (NDMNs) were prepared for the prevention of sleep disorders caused by hypoxia. NDMNs were composed of NMD and polyvinyl pyrrolidone (PVP) K90 with a conical morphology and high rigidity. After administration of NDMNs on the back neck of mice, the concentration of NMD in the brain was significantly higher than that of oral medication as was confirmed by the fluorescent imaging on mouse models. NDMNs enhanced cognitive function, alleviated oxidative stress, and improved the sleep quality of mice with high-altitude sleep disorders. The blockage of calcium ion overloading may be an important modulation mechanism. NDMNs are a promising and user-friendly formulation for the prevention of high-altitude sleep disorders.
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Affiliation(s)
- Chunqing Wang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xin Huang
- Department of Cognitive Sciences, Institute of Military Cognition and Brain Sciences, Beijing, China
| | - Ziyan Tang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yizhi Zhang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Meng Wei
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
| | - Shumin Du
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xingshuang Song
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yanping Wu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qiang Chi
- The 967th Hospital of Joint Logistic Support Force, Dalian, China
| | - Xiaomei Zhuang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Du Lina
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
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Simpson BK, Rangwani R, Abbasi A, Chung JM, Reed CM, Gulati T. Disturbed laterality of non-rapid eye movement sleep oscillations in post-stroke human sleep: a pilot study. Front Neurol 2023; 14:1243575. [PMID: 38099067 PMCID: PMC10719949 DOI: 10.3389/fneur.2023.1243575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 11/08/2023] [Indexed: 12/17/2023] Open
Abstract
Sleep is known to promote recovery post-stroke. However, there is a paucity of data profiling sleep oscillations in the post-stroke human brain. Recent rodent work showed that resurgence of physiologic spindles coupled to sleep slow oscillations (SOs) and concomitant decrease in pathological delta (δ) waves is associated with sustained motor performance gains during stroke recovery. The goal of this study was to evaluate bilaterality of non-rapid eye movement (NREM) sleep-oscillations (namely SOs, δ-waves, spindles, and their nesting) in post-stroke patients vs. healthy control subjects. We analyzed NREM-marked electroencephalography (EEG) data in hospitalized stroke-patients (n = 5) and healthy subjects (n = 3). We used a laterality index to evaluate symmetry of NREM oscillations across hemispheres. We found that stroke subjects had pronounced asymmetry in the oscillations, with a predominance of SOs, δ-waves, spindles, and nested spindles in affected hemisphere, when compared to the healthy subjects. Recent preclinical work classified SO-nested spindles as restorative post-stroke and δ-wave-nested spindles as pathological. We found that the ratio of SO-nested spindles laterality index to δ-wave-nested spindles laterality index was lower in stroke subjects. Using linear mixed models (which included random effects of concurrent pharmacologic drugs), we found large and medium effect size for δ-wave nested spindle and SO-nested spindle, respectively. Our results in this pilot study indicate that considering laterality index of NREM oscillations might be a useful metric for assessing recovery post-stroke and that factoring in pharmacologic drugs may be important when targeting sleep modulation for neurorehabilitation post-stroke.
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Affiliation(s)
- Benjamin K. Simpson
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Rohit Rangwani
- Department of Biomedical Sciences, Center for Neural Science and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Bioengineering Graduate Program, Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, Los Angeles, CA, United States
| | - Aamir Abbasi
- Department of Biomedical Sciences, Center for Neural Science and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Jeffrey M. Chung
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Chrystal M. Reed
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Tanuj Gulati
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Center for Neural Science and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Bioengineering Graduate Program, Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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Zhang XW, Chen L, Chen CF, Cheng J, Zhang PP, Wang LC. Dexmedetomidine modulates neuronal activity of horizontal limbs of diagonal band via α2 adrenergic receptor in mice. BMC Anesthesiol 2023; 23:327. [PMID: 37784079 PMCID: PMC10544551 DOI: 10.1186/s12871-023-02278-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/11/2023] [Indexed: 10/04/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Dexmedetomidine (DEX) is widely used in clinical sedation which has little effect on cardiopulmonary inhibition, however the mechanism remains to be elucidated. The basal forebrain (BF) is a key nucleus that controls sleep-wake cycle. The horizontal limbs of diagonal bundle (HDB) is one subregions of the BF. The purpose of this study was to examine whether the possible mechanism of DEX is through the α2 adrenergic receptor of BF (HDB). METHODS In this study, we investigated the effects of DEX on the BF (HDB) by using whole cell patch clamp recordings. The threshold stimulus intensity, the inter-spike-intervals (ISIs) and the frequency of action potential firing in the BF (HDB) neurons were recorded by application of DEX (2 µM) and co-application of a α2 adrenergic receptor antagonist phentolamine (PHEN) (10 µM). RESULTS DEX (2 µM) increased the threshold stimulus intensity, inhibited the frequency of action potential firing and enlarged the inter-spike-interval (ISI) in the BF (HDB) neurons. These effects were reversed by co-application of PHEN (10 µM). CONCLUSION Taken together, our findings revealed DEX decreased the discharge activity of BF (HDB) neuron via α2 adrenergic receptors.
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Affiliation(s)
- Xia-Wei Zhang
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, China
| | - Lei Chen
- Departments of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 230031, Hefei, China
| | - Chang-Feng Chen
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, China
| | - Juan Cheng
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, China
| | - Ping-Ping Zhang
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, China
| | - Lie-Cheng Wang
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, China.
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Zhang W, Gao T, Liu F, Zhang H, Wang S. Perioperative sleep disorders in gynaecological daycase surgery patients and analysis of risk factors: protocol for a cross-sectional study. BMJ Open 2023; 13:e074677. [PMID: 37751958 PMCID: PMC10533728 DOI: 10.1136/bmjopen-2023-074677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/11/2023] [Indexed: 09/30/2023] Open
Abstract
INTRODUCTION Sleep disorders are clinical syndromes of disturbed sleep-wake rhythms and abnormal sleep quality. They have various causes, but their main manifestations are difficulty falling asleep, sleep disruption and daytime fatigue. These are common clinical symptoms in perioperative patients, especially in gynaecological patients. There is a lack of research on the factors influencing perioperative sleep disorders in gynaecological patients. The aim of this study is to assess the prevalence of sleep disorders in gynaecological surgery patients and to analyse the possible factors influencing them to provide new ideas for improving sleep disorders in this patient population. METHODS AND ANALYSIS This cross-sectional, descriptive and observational survey is planned to include 480 gynaecological day surgery patients. All patients who meet the inclusion criteria are eligible to join the study. The study will record preoperative diagnosis, surgical procedure, duration of surgery, type of anaesthesia, anaesthetic drugs, sleep quality, anxiety and depression levels and pain indices 30 days before and 1, 2, 3 and 30 days after surgery. ETHICS AND DISSEMINATION The study was approved by the Ethics Committee of Beijing Shijitan Hospital Affiliated with Capital Medical University (Approval Number: sjtkyll-lx-2022(109)) before the start of recruitment. The results of the study will be disseminated through peer-reviewed publications and conference presentations. TRIAL REGISTRATION NUMBER ChiCTR2200064533.
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Affiliation(s)
- Wensi Zhang
- Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Teng Gao
- Peking University Sixth Hospital, Beijing, China
- Peking University Institute of Mental Health, Beijing, China
| | - Fanglin Liu
- Peking University, Beijing, China
- Department of Neurobiology, Peking University Health Science Center, Beijing, China
| | - Haijing Zhang
- Department of Anaesthesiology, Capital Medical University, Beijing, China
| | - Shaoheng Wang
- Department of Anaesthesiology and Surgical Critical Care Medicine, Capital Medical University, Beijing, China
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Zhu J, Chen C, Wu J, He M, Li S, Fang Y, Zhou Y, Xu H, Sadigh-Eteghad S, Manyande A, Zheng F, Chen T, Xu F, Ma D, Wang J, Zhang Z. Effects of propofol and sevoflurane on social and anxiety-related behaviours in sleep-deprived rats. Br J Anaesth 2023; 131:531-541. [PMID: 37543435 DOI: 10.1016/j.bja.2023.05.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 08/07/2023] Open
Abstract
BACKGROUND Sleep disorders can profoundly affect neurological function. We investigated changes in social and anxiety-related brain functional connectivity induced by sleep deprivation, and the potential therapeutic effects of the general anaesthetics propofol and sevoflurane in rats. METHODS Twelve-week-old male Sprague-Dawley rats were subjected to sleep deprivation for 20 h per day (from 14:00 to 10:00 the next day) for 4 consecutive weeks. They were free from sleep deprivation for the remaining 4 h during which they received propofol (40 mg kg-1 i.p.) or sevoflurane (2% for 2 h) per day or no treatment. These cohorts were instrumented for EEG/EMG recordings on days 2, 14, and 28. Different cohorts were used for open field and three-chambered social behavioural tests, functional MRI, nuclear magnetic resonance spectroscopy, and positron emission tomography imaging 48 h after 4 weeks of sleep deprivation. RESULTS Propofol protected against sleep deprivation-induced anxiety behaviours with more time (44.7 [8.9] s vs 24.2 [4.1] s for the sleep-deprivation controls; P<0.001) spent in the central area of the open field test and improved social preference index by 30% (all P<0.01). Compared with the sleep-deprived rats, propofol treatment enhanced overall functional connectivity by 74% (P<0.05) and overall glucose metabolism by 30% (P<0.01), and improved glutamate kinetics by 20% (P<0.05). In contrast, these effects were not found after sevoflurane treatment. CONCLUSIONS Unlike sevoflurane, propofol reduced sleep deprivation-induced social and anxiety-related behaviours. Propofol might be superior to sevoflurane for patients with sleep disorders who receive anaesthesia, which should be studied in clinical studies.
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Affiliation(s)
- Jinpiao Zhu
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Chang Chen
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Jinfeng Wu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China
| | - Mengying He
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, China; Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China
| | - Shuang Li
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China
| | - Yuanyuan Fang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, China; Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China
| | - Yan Zhou
- Frontier Science Center for Immunology and Metabolism, and Medical Research Institute at School of Medicine, Wuhan University, Wuhan, China
| | - Haibo Xu
- Department of Radiology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Anne Manyande
- School of Human and Social Sciences, University of West London, London, UK
| | - Feng Zheng
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Ting Chen
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Fuqiang Xu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China
| | - Daqing Ma
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK; Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jie Wang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Zongze Zhang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, China.
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Zhang B, Zhang P, L T, Cao Y, Chen T, Chen C, Zhang Z, Zhong Q. P2X7 Receptor in microglia contributes to propofol-induced unconsciousness by regulating synaptic plasticity in mice. Neuroscience 2023:S0306-4522(23)00223-3. [PMID: 37211083 DOI: 10.1016/j.neuroscience.2023.05.012] [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: 10/06/2022] [Revised: 04/16/2023] [Accepted: 05/14/2023] [Indexed: 05/23/2023]
Abstract
Propofol infusion is processed through the wake-sleep cycle in neural connections, and the ionotropic purine type 2X7 receptor (P2X7R) is a nonspecific cation channel implicated in sleep regulation and synaptic plasticity through its regulation of electric activity in the brain. Here, we explored the potential roles of P2X7R of microglia in propofol-induced unconsciousness. Propofol induced loss of the righting reflex in male C57BL/6 wild-type mice and increased spectral power of the slow wave and delta wave of the medial prefrontal cortex (mPFC), all of which were reversed with P2X7R antagonist A-740003 and strengthened with P2X7R agonist Bz-ATP. Propofol increased the P2X7R expression level and P2X7R immunoreactivity with microglia in the mPFC, induced mild synaptic injury and increased GABA release in the mPFC, and these changes were less severe when treated with A-740003 and were more obvious when treated with Bz-ATP. Electrophysiological approaches showed that propofol induced a decreased frequency of sEPSCs and an increased frequency of sIPSCs, A-740003 decrease frequency of sEPSCs and sIPSCs and Bz-ATP increase frequency of sEPSCs and sIPSCs under propofol anesthesia. These findings indicated that P2X7R in microglia regulates synaptic plasticity and may contribute to propofol-mediated unconsciousness.
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Affiliation(s)
- Bo Zhang
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China, 430022
| | - Panpan Zhang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, East Lake Road, Wuhan, Hubei, China, 430071; Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China, 430022
| | - Tingting L
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, East Lake Road, Wuhan, Hubei, China, 430071
| | - Yue Cao
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, East Lake Road, Wuhan, Hubei, China, 430071
| | - Ting Chen
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, East Lake Road, Wuhan, Hubei, China, 430071
| | - Chang Chen
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, East Lake Road, Wuhan, Hubei, China, 430071
| | - Zongze Zhang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, East Lake Road, Wuhan, Hubei, China, 430071.
| | - Qi Zhong
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, East Lake Road, Wuhan, Hubei, China, 430071.
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Kroeger D, Vetrivelan R. To sleep or not to sleep - Effects on memory in normal aging and disease. AGING BRAIN 2023; 3:100068. [PMID: 36911260 PMCID: PMC9997183 DOI: 10.1016/j.nbas.2023.100068] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 11/03/2022] [Accepted: 01/20/2023] [Indexed: 01/31/2023] Open
Abstract
Sleep behavior undergoes significant changes across the lifespan, and aging is associated with marked alterations in sleep amounts and quality. The primary sleep changes in healthy older adults include a shift in sleep timing, reduced slow-wave sleep, and impaired sleep maintenance. However, neurodegenerative and psychiatric disorders are more common among the elderly, which further worsen their sleep health. Irrespective of the cause, insufficient sleep adversely affects various bodily functions including energy metabolism, mood, and cognition. In this review, we will focus on the cognitive changes associated with inadequate sleep during normal aging and the underlying neural mechanisms.
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Affiliation(s)
- Daniel Kroeger
- Anatomy, Physiology, and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, United States
| | - Ramalingam Vetrivelan
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, United States
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Luo D, Chen S, Zhang Y. Effects of different injection methods of propofol anesthesia on the behavior and electroencephalography recording in mice. IBRAIN 2022; 8:109-116. [PMID: 37786422 PMCID: PMC10529194 DOI: 10.1002/ibra.12030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 10/04/2023]
Abstract
Propofol is commonly used in mice studies on the mechanism of general anesthesia. The administration routes of propofol include intraperitoneal injection, single tail vein injection, and continuous tail vein pumping. The aim of this study is to compare the effects of the three injection methods on the behavior and electroencephalography (EEG) recording in mice. Mice were divided into an intraperitoneal injection group, a single tail vein injection group, and a continuous tail vein pumping group according to the propofol administration route. The indexes for observation were: time of loss of righting reflex (LORR), time of resumption of righting reflex (RORR), and change in the number of EEG spindle waves during anesthesia. The LORR and RORR were detected again after 1 week to determine the repeatability of the three administration routes. Death and behavioral change after anesthesia recovery in mice were recorded in the three groups. For propofol administration in mice, intraperitoneal injection induced long-duration anesthesia, but the depth of anesthesia was shallow and there was a risk of anesthesia accidents. A small dose of propofol administered through a single tail vein can induce loss of consciousness but the LORR time was not recorded, hence the metrics during induction of anesthesia were not investigated. Continuous tail vein pumping produced stable behavior and EEG recording during anesthesia induction and recovery in mice, and the individual difference was small. Continuous tail vein pumping is an ideal administration route for studying the mechanism of loss of consciousness of propofol anesthesia in mice, which could provide reference data for future mice experiments using propofol.
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Affiliation(s)
- Dan Luo
- College of AnesthesiologyZunyi Medical UniversityZunyiGuizhouChina
| | - Shi‐Yu Chen
- College of AnesthesiologyZunyi Medical UniversityZunyiGuizhouChina
| | - Yu Zhang
- Guizhou Key Laboratory of Anesthesia and Organ ProtectionZunyi Medical UniversityZunyiGuizhouChina
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