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Wu XQ, Tan B, Du Y, Yang L, Hu TT, Ding YL, Qiu XY, Moutal A, Khanna R, Yu J, Chen Z. Glutamatergic and GABAergic neurons in the vLGN mediate the nociceptive effects of green and red light on neuropathic pain. Neurobiol Dis 2023; 183:106164. [PMID: 37217103 DOI: 10.1016/j.nbd.2023.106164] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023] Open
Abstract
Phototherapy is an emerging non-pharmacological treatment for depression, circadian rhythm disruptions, and neurodegeneration, as well as pain conditions including migraine and fibromyalgia. However, the mechanism of phototherapy-induced antinociception is not well understood. Here, using fiber photometry recordings of population-level neural activity combined with chemogenetics, we found that phototherapy elicits antinociception via regulation of the ventral lateral geniculate body (vLGN) located in the visual system. Specifically, both green and red lights caused an increase of c-fos in vLGN, with red light increased more. In vLGN, green light causes a large increase in glutamatergic neurons, whereas red light causes a large increase in GABAergic neurons. Green light preconditioning increases the sensitivity of glutamatergic neurons to noxious stimuli in vLGN of PSL mice. Green light produces antinociception by activating glutamatergic neurons in vLGN, and red light promotes nociception by activating GABAergic neurons in vLGN. Together, these results demonstrate that different colors of light exert different pain modulation effects by regulating glutamatergic and GABAergic subpopulations in the vLGN. This may provide potential new therapeutic strategies and new therapeutic targets for the precise clinical treatment of neuropathic pain.
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Affiliation(s)
- Xue-Qing Wu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China
| | - Bei Tan
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China
| | - Yu Du
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China
| | - Lin Yang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China
| | - Ting-Ting Hu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China
| | - Yi-La Ding
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China
| | - Xiao-Yun Qiu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China
| | - Aubin Moutal
- Department of Pharmacology and Physiology, School of Medicine, St. Louis University, St. Louis, MO, USA
| | - Rajesh Khanna
- Department of Molecular Pathobiology, College of Dentistry, and NYU Pain Research Center, New York University, New York, NY 10010, USA.
| | - Jie Yu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China.
| | - Zhong Chen
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Basic Medical Science, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310058, China.
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Sun SY, Chen GH. Treatment of Circadian Rhythm Sleep-Wake Disorders. Curr Neuropharmacol 2022; 20:1022-1034. [PMID: 34493186 PMCID: PMC9886819 DOI: 10.2174/1570159x19666210907122933] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 08/09/2021] [Accepted: 09/05/2021] [Indexed: 11/22/2022] Open
Abstract
Circadian rhythm sleep-wake disorders (CRSWDs) are a distinct class of sleep disorders caused by alterations to the circadian time-keeping system, its entrainment mechanisms, or a mismatch between the endogenous circadian rhythm and the external environment. The main clinical manifestations are insomnia and excessive daytime sleepiness that often lead to clinically meaningful distress or cause mental, physical, social, occupational, educational, or other functional impairment. CRSWDs are easily mistaken for insomnia or early waking up, resulting in inappropriate treatment. CRSWDs can be roughly divided into two categories, namely, intrinsic CRSWDs, in which sleep disturbances are caused by alterations to the endogenous circadian rhythm system due to chronic changes in the regulation or capture mechanism of the biological clock, and extrinsic circadian rhythm sleep-wake disorders, in which sleep disorders, such as jet lag or shift-work disorder, result from environmental changes that cause a mismatch between sleep-wakefulness times and internal circadian rhythms. Sleep diaries, actigraphy, and determination of day and night phase markers (dim light melatonin onset and core body temperature minimum) have all become routine diagnostic methods for CRSWDs. Common treatments for CRSWD currently include sleep health education, time therapy, light therapy, melatonin, and hypnotic drug therapy. Here, we review the progress in the epidemiology, etiology, diagnostic evaluation, diagnostic criteria, and treatment of intrinsic CRSWD, with emphasis on the latter, in the hope of bolstering the clinical diagnosis and treatment of CRSWDs.
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Affiliation(s)
- Shi-Yu Sun
- Department of Neurology, First Affiliated Hospital of Anhui University of Science and Technology, First People's Hospital of Huainan, Huainan 232007, Anhui, People's Republic of China
| | - Gui-Hai Chen
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui Province, P.R. China;,Address correspondence to this author at the Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui Province, P.R. China; Tel/Fax:+86-551-82324252; E-mail:
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Okechukwu CE, Okechukwu CE, Torre GL. Effectiveness of bright light exposure, modafinil and armodafinil for improving alertness during working time among nurses on the night shift: A systematic review. INTERNATIONAL JOURNAL OF HEALTHCARE MANAGEMENT 2022. [DOI: 10.1080/20479700.2022.2054508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | | | - Giuseppe La Torre
- Department of Public health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
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