1
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Conde KM, Wong H, Fang S, Li Y, Yu M, Deng Y, Liu Q, Fang X, Wang M, Shi Y, Ginnard OZ, Yang Y, Tu L, Liu H, Liu H, Yin N, Bean JC, Han J, Burt ME, Jossy SV, Yang Y, Tong Q, Arenkiel BR, Wang C, He Y, Xu Y. Serotonin neurons integrate GABA and dopamine inputs to regulate meal initiation. Metabolism 2024; 163:156099. [PMID: 39667432 DOI: 10.1016/j.metabol.2024.156099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2024] [Revised: 12/04/2024] [Accepted: 12/07/2024] [Indexed: 12/14/2024]
Abstract
Obesity is a growing global health epidemic with limited orally administered therapeutics. Serotonin (5-HT) is one neurotransmitter which remains an excellent target for new weight-loss therapies, but a gap remains in understanding the mechanisms involved in 5-HT produced in the dorsal Raphe nucleus (DRN) and its involvement in meal initiation. Using an optogenetic feeding paradigm, we showed that the 5-HTDRN➔arcuate nucleus (ARH) circuit plays a role in meal initiation. Incorporating electrophysiology and ChannelRhodopsin-2-Assisted Circuit Mapping, we demonstrated that 5-HTDRN neurons receive inhibitory input partially from GABAergic neurons in the DRN, and the 5-HT response can be enhanced by hunger. Additionally, deletion of the GABAA receptor subunit in 5-HT neurons inhibits meal initiation with no effect on the satiation process. Finally, we identified the role of dopaminergic inputs via dopamine receptor D2 in enhancing the response to GABA-induced feeding. Thus, our results indicate that 5-HTDRN neurons are inhibited by synergistic inhibitory actions of GABA and dopamine, for the initiation of a meal.
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Affiliation(s)
- Kristine M Conde
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - HueyZhong Wong
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Shuzheng Fang
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yongxiang Li
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Meng Yu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yue Deng
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Qingzhuo Liu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Xing Fang
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Mengjie Wang
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yuhan Shi
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Olivia Z Ginnard
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yuxue Yang
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Longlong Tu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Hesong Liu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Hailan Liu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Na Yin
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Jonathan C Bean
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Junying Han
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Megan E Burt
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Sanika V Jossy
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yongjie Yang
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Qingchun Tong
- Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Benjamin R Arenkiel
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Chunmei Wang
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yang He
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yong Xu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
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2
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Corona G, Rastrelli G, Sparano C, Vignozzi L, Maggi M. Acquired hypoprolactinemia in men, possible phenotype. Rev Endocr Metab Disord 2024; 25:1109-1119. [PMID: 39066947 PMCID: PMC11624216 DOI: 10.1007/s11154-024-09895-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/15/2024] [Indexed: 07/30/2024]
Abstract
The physiological role of prolactin (PRL) in men is still not well defined. The pathological increase is characterized by sexual function impairment along with possible negative consequences in body composition and metabolic profile. Conversely, the clinical significance of reduced PRL levels was only partially investigated or mainly neglected. The present paper aims to summarize and critically discuss possible phenotypes characterizing male subjects with reduced PRL levels. When possible, meta-analytic results were provided. Available data derived from patients seeking medical care for sexual dysfunction as well as from cross-sectional and longitudinal studies showed that low PRL in males is associated with a worse metabolic phenotype (including diabetes mellitus), mood disturbances (including anxiety and depression), and sexual dysfunctions (including psychogenic erectile and ejaculatory dysfunctions). Whether or not these features are direct consequences of reduced PRL levels or whether the latter reflect other pathway impairments such as serotoninergic failure cannot be clarified. The present data, however, emphasize that a deficiency of PRL should be taken into account and need further investigations.
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Affiliation(s)
| | - Giulia Rastrelli
- Female Endocrinology and Gender Incongruence Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Clotilde Sparano
- Endocrinology Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Pieraccini 6, Florence, 50139, Italy
| | - Linda Vignozzi
- Female Endocrinology and Gender Incongruence Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Mario Maggi
- Endocrinology Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Pieraccini 6, Florence, 50139, Italy.
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3
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Talevi A. Drug-resistant epilepsy: Is there an overlooked association between drug resistant epilepsies and neuropsychiatric comorbidities? Epilepsy Behav 2024; 161:110144. [PMID: 39541743 DOI: 10.1016/j.yebeh.2024.110144] [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: 08/31/2024] [Revised: 10/30/2024] [Accepted: 11/03/2024] [Indexed: 11/16/2024]
Abstract
Despite the introduction of several first-in-class antiseizure medications in the last 15 years and the recent generation of new hypotheses to explain the drug-resistant phenotype in epilepsy, the proportion of patients with refractory epilepsy remains apparently unchanged. Therefore, it is essential to provide new perspectives (or, perhaps, revive old perspectives) to develop more effective therapeutic interventions. Some of the complex comorbid disorders associated with epilepsy, which present similar rates of unresponsive patients and whose refractoriness is possibly mediated by similar causes, could provide keys to implement novel therapeutic interventions. In this article, based on Swanson's ABC model to develop scientific hypotheses, we establish (or rescue) some interesting connections between depression and epilepsy, focusing on the relationship between drug-resistant epilepsy and depression.
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Affiliation(s)
- Alan Talevi
- Laboratory of Bioactive Compound Research and Development (LIDeB), Faculty of Exact Sciences, National University of La Plata (UNLP), Blvd. 120 1489, La Plata (B1904), Buenos Aires, Argentina; Argentinean National Council of Scientific and Technical Research (CONICET), CCT La Plata, La Plata, Buenos Aires, Argentina.
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4
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Chen D, Zhao Z, Shi J, Li S, Xu X, Wu Z, Tang Y, Liu N, Zhou W, Ni C, Ma B, Wang J, Zhang J, Huang L, You Z, Zhang P, Tang Z. Harnessing the sensing and stimulation function of deep brain-machine interfaces: a new dawn for overcoming substance use disorders. Transl Psychiatry 2024; 14:440. [PMID: 39419976 PMCID: PMC11487193 DOI: 10.1038/s41398-024-03156-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 10/04/2024] [Accepted: 10/09/2024] [Indexed: 10/19/2024] Open
Abstract
Substance use disorders (SUDs) imposes profound physical, psychological, and socioeconomic burdens on individuals, families, communities, and society as a whole, but the available treatment options remain limited. Deep brain-machine interfaces (DBMIs) provide an innovative approach by facilitating efficient interactions between external devices and deep brain structures, thereby enabling the meticulous monitoring and precise modulation of neural activity in these regions. This pioneering paradigm holds significant promise for revolutionizing the treatment landscape of addictive disorders. In this review, we carefully examine the potential of closed-loop DBMIs for addressing SUDs, with a specific emphasis on three fundamental aspects: addictive behaviors-related biomarkers, neuromodulation techniques, and control policies. Although direct empirical evidence is still somewhat limited, rapid advancements in cutting-edge technologies such as electrophysiological and neurochemical recordings, deep brain stimulation, optogenetics, microfluidics, and control theory offer fertile ground for exploring the transformative potential of closed-loop DBMIs for ameliorating symptoms and enhancing the overall well-being of individuals struggling with SUDs.
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Affiliation(s)
- Danyang Chen
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhixian Zhao
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jian Shi
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shengjie Li
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xinran Xu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhuojin Wu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yingxin Tang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Na Liu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenhong Zhou
- Wuhan Global Sensor Technology Co., Ltd, Wuhan, Hubei, China
| | - Changmao Ni
- Wuhan Neuracom Technology Development Co., Ltd, Wuhan, Hubei, China
| | - Bo Ma
- Microsystems Technology Center, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Junya Wang
- Microsystems Technology Center, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jun Zhang
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, China
| | - Li Huang
- Wuhan Neuracom Technology Development Co., Ltd, Wuhan, Hubei, China
| | - Zheng You
- Microsystems Technology Center, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Ping Zhang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Zhouping Tang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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5
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Li Y, Kim M, Jiang L, Baron L, Faulkner LD, Olson DP, Li X, Gannot N, Li P, Rui L. SH2B1 Defends Against Energy Imbalance, Obesity, and Metabolic Disease via a Paraventricular Hypothalamus→Dorsal Raphe Nucleus Neurocircuit. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400437. [PMID: 38885417 PMCID: PMC11336965 DOI: 10.1002/advs.202400437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/01/2024] [Indexed: 06/20/2024]
Abstract
SH2B1 mutations are associated with obesity, type 2 diabetes, and metabolic dysfunction-associated steatotic liver disease (MASLD) in humans. Global deletion of Sh2b1 results in severe obesity, type 2 diabetes, and MASLD in mice. Neuron-specific restoration of SH2B1 rescues the obesity phenotype of Sh2b1-null mice, indicating that the brain is a main SH2B1 target. However, SH2B1 neurocircuits remain elusive. SH2B1-expressing neurons in the paraventricular hypothalamus (PVHSH2B1) and a PVHSH2B1→dorsal raphe nucleus (DRN) neurocircuit are identified here. PVHSH2B1 axons monosynaptically innervate DRN neurons. Optogenetic stimulation of PVHSH2B1 axonal fibers in the DRN suppresses food intake. Chronic inhibition of PVHSH2B1 neurons causes obesity. In male and female mice, either embryonic-onset or adult-onset deletion of Sh2b1 in PVH neurons causes energy imbalance, obesity, insulin resistance, glucose intolerance, and MASLD. Ablation of Sh2b1 in the DRN-projecting PVHSH2B1 subpopulation also causes energy imbalance, obesity, and metabolic disorders. Conversely, SH2B1 overexpression in either total or DRN-projecting PVHSH2B1 neurons protects against diet-induced obesity. SH2B1 binds to TrkB and enhances brain-derived neurotrophic factor (BDNF) signaling. Ablation of Sh2b1 in PVHSH2B1 neurons induces BDNF resistance in the PVH, contributing to obesity. In conclusion, these results unveil a previously unrecognized PVHSH2B1→DRN neurocircuit through which SH2B1 defends against obesity by enhancing BDNF/TrkB signaling.
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Affiliation(s)
- Yuan Li
- Department of Molecular & Integrative PhysiologyUniversity of Michigan Medical SchoolAnn ArborMI48109USA
| | - Min‐Hyun Kim
- Department of Molecular & Integrative PhysiologyUniversity of Michigan Medical SchoolAnn ArborMI48109USA
- College of Health SolutionsArizona State UniversityPhoenixAZ85004USA
| | - Lin Jiang
- Department of Molecular & Integrative PhysiologyUniversity of Michigan Medical SchoolAnn ArborMI48109USA
| | - Lorelei Baron
- Department of Molecular & Integrative PhysiologyUniversity of Michigan Medical SchoolAnn ArborMI48109USA
| | - Latrice D. Faulkner
- Department of PediatricsUniversity of Michigan Medical SchoolAnn ArborMI48109USA
| | - David P. Olson
- Department of Molecular & Integrative PhysiologyUniversity of Michigan Medical SchoolAnn ArborMI48109USA
- Department of PediatricsUniversity of Michigan Medical SchoolAnn ArborMI48109USA
- Elizabeth Weiser Caswell Diabetes InstituteUniversity of MichiganAnn ArborMI48109USA
| | - Xingyu Li
- Life Sciences InstituteUniversity of MichiganAnn ArborMI48109USA
| | - Noam Gannot
- Life Sciences InstituteUniversity of MichiganAnn ArborMI48109USA
- Department of Biologic and Materials SciencesSchool of DentistryUniversity of MichiganAnn ArborMI48109USA
| | - Peng Li
- Department of Molecular & Integrative PhysiologyUniversity of Michigan Medical SchoolAnn ArborMI48109USA
- Life Sciences InstituteUniversity of MichiganAnn ArborMI48109USA
- Department of Biologic and Materials SciencesSchool of DentistryUniversity of MichiganAnn ArborMI48109USA
| | - Liangyou Rui
- Department of Molecular & Integrative PhysiologyUniversity of Michigan Medical SchoolAnn ArborMI48109USA
- Elizabeth Weiser Caswell Diabetes InstituteUniversity of MichiganAnn ArborMI48109USA
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMI48109USA
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6
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Liu H, Liu Z, Wong HK, Xu N, Liu Q, Li Y, Liu Y, Wong H, Burt ME, Jossy SV, Han J, He Y. Therapeutic Strategies Against Metabolic Imbalance in a Male Mouse Model With 5-HT2CR Loss-of-Function. Endocrinology 2024; 165:bqae063. [PMID: 38815086 DOI: 10.1210/endocr/bqae063] [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: 04/08/2024] [Revised: 05/07/2024] [Accepted: 05/28/2024] [Indexed: 06/01/2024]
Abstract
The serotonin 2C receptor (5-HT2CR)-melanocortin pathway plays well-established roles in the regulation of feeding behavior and body weight homeostasis. Dysfunctions in this system, such as loss-of-function mutations in the Htr2c gene, can lead to hyperphagia and obesity. In this study, we aimed to investigate the potential therapeutic strategies for ameliorating hyperphagia, hyperglycemia, and obesity associated with a loss-of-function mutation in the Htr2c gene (Htr2cF327L/Y). We demonstrated that reexpressing functional 5-HT2CR solely in hypothalamic pro-opiomelanocortin (POMC) neurons is sufficient to reduce food intake and body weight in Htr2cF327L/Y mice subjected to a high-fat diet (HFD). In addition, 5-HT2CR expression restores the responsiveness of POMC neurons to lorcaserin, a selective agonist for 5-HT2CR. Similarly, administration of melanotan II, an agonist of the melanocortin receptor 4 (MC4R), effectively suppresses feeding and weight gain in Htr2cF327L/Y mice. Strikingly, promoting wheel-running activity in Htr2cF327L/Y mice results in a decrease in HFD consumption and improved glucose homeostasis. Together, our findings underscore the crucial role of the melanocortin system in alleviating hyperphagia and obesity related to dysfunctions of the 5-HT2CR, and further suggest that MC4R agonists and lifestyle interventions might hold promise in counteracting hyperphagia, hyperglycemia, and obesity in individuals carrying rare variants of the Htr2c gene.
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MESH Headings
- Animals
- Receptor, Serotonin, 5-HT2C/metabolism
- Receptor, Serotonin, 5-HT2C/genetics
- Male
- Mice
- Hyperphagia/metabolism
- Hyperphagia/genetics
- Pro-Opiomelanocortin/metabolism
- Pro-Opiomelanocortin/genetics
- Diet, High-Fat
- Obesity/metabolism
- Obesity/genetics
- Receptor, Melanocortin, Type 4/genetics
- Receptor, Melanocortin, Type 4/metabolism
- Receptor, Melanocortin, Type 4/agonists
- alpha-MSH/pharmacology
- alpha-MSH/analogs & derivatives
- Loss of Function Mutation
- Hypothalamus/metabolism
- Body Weight/drug effects
- Eating/drug effects
- Eating/physiology
- Eating/genetics
- Neurons/metabolism
- Neurons/drug effects
- Disease Models, Animal
- Hyperglycemia/metabolism
- Hyperglycemia/genetics
- Mice, Inbred C57BL
- Benzazepines
- Peptides, Cyclic
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Affiliation(s)
- Hailan Liu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zhaoxun Liu
- Nursing Department, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
- Department of Emergency, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
| | - HueyXian Kelly Wong
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Pediatrics, Section of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Nathan Xu
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Pediatrics, Section of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Qingzhuo Liu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yongxiang Li
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yao Liu
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Pediatrics, Section of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
| | - HueyZhong Wong
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Megan E Burt
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sanika V Jossy
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Junying Han
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yang He
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Pediatrics, Section of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
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7
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Conde KM, Wong H, Fang S, Li Y, Yu M, Deng Y, Liu Q, Fang X, Wang M, Shi Y, Ginnard OZ, Yang Y, Tu L, Liu H, Liu H, Yin N, Bean JC, Han J, Burt ME, Jossy SV, Yang Y, Tong Q, Arenkiel BR, Wang C, He Y, Xu Y. 5-HT Neurons Integrate GABA and Dopamine Inputs to Regulate Meal Initiation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.26.591360. [PMID: 38746314 PMCID: PMC11092489 DOI: 10.1101/2024.04.26.591360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Obesity is a growing global health epidemic with limited effective therapeutics. Serotonin (5-HT) is one major neurotransmitter which remains an excellent target for new weight-loss therapies, but there remains a gap in knowledge on the mechanisms involved in 5-HT produced in the dorsal Raphe nucleus (DRN) and its involvement in meal initiation. Using a closed-loop optogenetic feeding paradigm, we showed that the 5-HTDRN→arcuate nucleus (ARH) circuit plays an important role in regulating meal initiation. Incorporating electrophysiology and ChannelRhodopsin-2-Assisted Circuit Mapping, we demonstrated that 5-HTDRN neurons receive inhibitory input partially from GABAergic neurons in the DRN, and the 5-HT response to GABAergic inputs can be enhanced by hunger. Additionally, deletion of the GABAA receptor subunit in 5-HT neurons inhibits meal initiation with no effect on the satiation process. Finally, we identified the instrumental role of dopaminergic inputs via dopamine receptor D2 in 5-HTDRN neurons in enhancing the response to GABA-induced feeding. Thus, our results indicate that 5-HTDRN neurons are inhibited by synergistic inhibitory actions of GABA and dopamine, which allows for the initiation of a meal.
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Affiliation(s)
- Kristine M. Conde
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - HueyZhong Wong
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Shuzheng Fang
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yongxiang Li
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Meng Yu
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yue Deng
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Qingzhuo Liu
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Xing Fang
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Mengjie Wang
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yuhan Shi
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Olivia Z. Ginnard
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yuxue Yang
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Longlong Tu
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Hesong Liu
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Hailan Liu
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Na Yin
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Jonathan C. Bean
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Junying Han
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Megan E. Burt
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Sanika V. Jossy
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yongjie Yang
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Qingchun Tong
- Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Benjamin R. Arenkiel
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Chunmei Wang
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yang He
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Yong Xu
- USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
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Sun B, Cao X, Xin M, Guan R. Treatment of Depression with Acupuncture Based on Pathophysiological Mechanism. Int J Gen Med 2024; 17:347-357. [PMID: 38314195 PMCID: PMC10838506 DOI: 10.2147/ijgm.s448031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 01/21/2024] [Indexed: 02/06/2024] Open
Abstract
Depression is a prevalent mental disorder and has a profound impact on an individual's psychological and physical well-being. It is characterized by a persistently depressed mood, loss of interest, energy loss, and cognitive dysfunction. In recent years, more and more people have changed to mental diseases, such as depression, anxiety, mania and so on. In the incidence of depression, covering all ages, but still mainly young and middle-aged women. Traditional treatments for depression mainly rely on medication and psychotherapy, but these methods are not effective for all patients and are often accompanied by certain side effects. Therefore, finding safe and effective alternative or adjuvant treatments has become a priority. Here we highlight the research progress of acupuncture in the treatment of depression and to explore the mechanism of acupuncture in the treatment of depression. Acupuncture treatment of depression is an ancient and effective method, the mechanism involves multiple biological pathways, for example, by regulating neurotransmitter levels, regulating the neuroendocrine axis, improving neuroplasticity, anti-inflammatory and other effects, improving emotional state and play an antidepressant role. To provide evidence to support the widespread use of acupuncture in clinical practice. We hope to provide new treatment ideas and methods for patients with depression, and even reduce the incidence of depression.
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Affiliation(s)
- Bo Sun
- Neurology Department, The 962nd Hospital of the PLA Joint Logistic Support Force, Harbin, People’s Republic of China
| | - Xuewei Cao
- Cardiopulmonary Department, Jiamusi Hospital of Traditional Chinese Medicine, Harbin, People’s Republic of China
| | - Ming Xin
- Neurology Department, Xin Wanhe Acupuncture Clinic, Harbin, People’s Republic of China
| | - Ruiqian Guan
- Massage Department, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, People’s Republic of China
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