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Sanchez MR, Wang Y, Cho TS, Schnapp WI, Schmit MB, Fang C, Cai H. Dissecting a disynaptic central amygdala-parasubthalamic nucleus neural circuit that mediates cholecystokinin-induced eating suppression. Mol Metab 2022; 58:101443. [PMID: 35066159 PMCID: PMC8844644 DOI: 10.1016/j.molmet.2022.101443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/09/2022] [Accepted: 01/13/2022] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE Cholecystokinin (CCK) plays a critical role in regulating eating and metabolism. Previous studies have mapped a multi-synapse neural pathway from the vagus nerve to the central nucleus of the amygdala (CEA) that mediates the anorexigenic effect of CCK. However, the neural circuit downstream of the CEA is still unknown due to the complexity of the neurons in the CEA. Here we sought to determine this circuit using a novel approach. METHODS It has been established that a specific population of CEA neurons, marked by protein kinase C-delta (PKC-δ), mediates the anorexigenic effect of CCK by inhibiting other CEA inhibitory neurons. Taking advantage of this circuit, we dissected the neural circuit using a unique approach based on the idea that neurons downstream of the CEA should be disinhibited by CEAPKC-δ+ neurons while being activated by CCK. We also used optogenetic assisted electrophysiology circuit mapping and in vivo chemogenetic manipulation methods to determine the circuit structure and function. RESULTS We found that neurons in the parasubthalamic nucleus (PSTh) are activated by the activation of CEAPKC-δ+ neurons and by the peripheral administration of CCK. We demonstrated that CEAPKC-δ+ neurons inhibit the PSTh-projecting CEA neurons; accordingly, the PSTh neurons can be disynaptically disinhibited or "activated" by CEAPKC-δ+ neurons. Finally, we showed that chemogenetic silencing of the PSTh neurons effectively attenuates the eating suppression induced by CCK. CONCLUSIONS Our results identified a disynaptic CEA-PSTh neural circuit that mediates the anorexigenic effect of CCK and thus provide an important neural mechanism of how CCK suppresses eating.
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Affiliation(s)
| | - Yong Wang
- Department of Neuroscience, University of Arizona, Tucson, AZ, USA; Department of Physiology and Pathophysiology, Xi'an Jiaotong University Health Science Center, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, PR China
| | - Tiffany S Cho
- Department of Neuroscience, University of Arizona, Tucson, AZ, USA
| | - Wesley I Schnapp
- Department of Neuroscience, University of Arizona, Tucson, AZ, USA; Graduate Interdisciplinary Program in Neuroscience, University of Arizona, Tucson, AZ, USA
| | - Matthew B Schmit
- Department of Neuroscience, University of Arizona, Tucson, AZ, USA; Graduate Interdisciplinary Program in Neuroscience, University of Arizona, Tucson, AZ, USA
| | - Caohui Fang
- Department of Neuroscience, University of Arizona, Tucson, AZ, USA
| | - Haijiang Cai
- Department of Neuroscience, University of Arizona, Tucson, AZ, USA; Bio5 Institute and Department of Neurology, University of Arizona, Tucson, AZ, USA.
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Hung TKW, Dong TS, Chen Z, Elashoff D, Sinsheimer JS, Jacobs JP, Lagishetty V, Vora P, Stains J, Mayer EA, Gupta A. Understanding the Heterogeneity of Obesity and the Relationship to the Brain-Gut Axis. Nutrients 2020; 12:nu12123701. [PMID: 33266058 PMCID: PMC7761087 DOI: 10.3390/nu12123701] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 12/26/2022] Open
Abstract
Obesity is best understood as a multifactorial metabolic imbalances disorder. In a cross-sectional study, we aimed to explore sociodemographic and dietary determinants of obesity in relation to brain-gut homeostasis among overweight and obese individuals. Multivariate logistic regression models were used to examine obesity and its association with sociodemographic and dietary factors. Biological variables examined included the gut microbiome, fecal amino acid metabolites and brain structural volumes. Among 130 participants, there were higher odds of obesity if individuals were Hispanic (adjusted odds ratio (aOR) 1.56, p = 0.014). Compared to non-Hispanics, Hispanics differed in gut microbial composition (p = 0.046) with lower microbial species richness (Chao1) (p = 0.032) and evenness (Shannon) (p = 0.0029). Fourteen of the twenty fecal amino acids including branch-chain- and aromatic- amino acids were increased among Hispanics (q < 0.05). Brain structural volumes in reward regions were decreased in Hispanics (pallidum, q = 0.036; brainstem, q = 0.011). Correlation patterns suggest complex brain-gut interactions differ by Hispanic ethnicity. In conclusion, Hispanics expressed a unique brain-gut microbial signature, which was associated with obesity despite sociodemographic and dietary differences. Addressing ethnic disparities guided by biologic phenotypes may unlock novel understanding of obesity heterogeneity and treatment strategies.
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Affiliation(s)
- Tony K. W. Hung
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
| | - Tien S. Dong
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
- Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA 90095, USA
- UCLA Microbiome Center, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, CA 90095, USA
| | - Zixi Chen
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA 90095, USA
| | - David Elashoff
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- Department of Computational Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA;
- Department of Biostatistics, UCLA Fielding School of Public Health, Los Angeles, CA 90095, USA
| | - Janet S. Sinsheimer
- Department of Computational Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA;
- Department of Biostatistics, UCLA Fielding School of Public Health, Los Angeles, CA 90095, USA
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Jonathan P. Jacobs
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
- Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA 90095, USA
- UCLA Microbiome Center, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, CA 90095, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA 90095, USA
| | - Venu Lagishetty
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- UCLA Microbiome Center, Los Angeles, CA 90095, USA
| | - Priten Vora
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA 90095, USA
| | - Jean Stains
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
- Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA 90095, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA 90095, USA
| | - Emeran A. Mayer
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
- Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA 90095, USA
- UCLA Microbiome Center, Los Angeles, CA 90095, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA 90095, USA
- Ahmanson-Lovelace Brain Mapping Center, UCLA, Los Angeles, CA 90095, USA
| | - Arpana Gupta
- Division of Hematology and Oncology, University of California, Los Angeles, CA 90095, USA; (T.K.W.H.); (T.S.D.); (Z.C.); (D.E.); (J.P.J.); (V.L.); (P.V.); (J.S.); (E.A.M.)
- David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
- Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA 90095, USA
- UCLA Microbiome Center, Los Angeles, CA 90095, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA 90095, USA
- Correspondence:
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Dong TS, Gupta A, Jacobs JP, Lagishetty V, Gallagher E, Bhatt RR, Vora P, Osadchiy V, Stains J, Balioukova A, Chen Y, Dutson E, Mayer EA, Sanmiguel C. Improvement in Uncontrolled Eating Behavior after Laparoscopic Sleeve Gastrectomy Is Associated with Alterations in the Brain-Gut-Microbiome Axis in Obese Women. Nutrients 2020; 12:E2924. [PMID: 32987837 PMCID: PMC7599899 DOI: 10.3390/nu12102924] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Bariatric surgery is proven to change eating behavior and cause sustained weight loss, yet the exact mechanisms underlying these changes are not clearly understood. We explore this in a novel way by examining how bariatric surgery affects the brain-gut-microbiome (BGM) axis. METHODS Patient demographics, serum, stool, eating behavior questionnaires, and brain magnetic resonance imaging (MRI) were collected before and 6 months after laparoscopic sleeve gastrectomy (LSG). Differences in eating behavior and brain morphology and resting-state functional connectivity in core reward regions were correlated with serum metabolite and 16S microbiome data. RESULTS LSG resulted in significant weight loss and improvement in maladaptive eating behaviors as measured by the Yale Food Addiction Scale (YFAS). Brain imaging showed a significant increase in brain volume of the putamen (p.adj < 0.05) and amygdala (p.adj < 0.05) after surgery. Resting-state connectivity between the precuneus and the putamen was significantly reduced after LSG (p.adj = 0.046). This change was associated with YFAS symptom count. Bacteroides, Ruminococcus, and Holdemanella were associated with reduced connectivity between these areas. Metabolomic profiles showed a positive correlation between this brain connection and a phosphatidylcholine metabolite. CONCLUSION Bariatric surgery modulates brain networks that affect eating behavior, potentially through effects on the gut microbiota and its metabolites.
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Affiliation(s)
- Tien S. Dong
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; (T.S.D.); (A.G.); (J.P.J.); (V.L.); (E.A.M.)
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90025, USA
| | - Arpana Gupta
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; (T.S.D.); (A.G.); (J.P.J.); (V.L.); (E.A.M.)
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
- David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; (Y.C.); (E.D.)
| | - Jonathan P. Jacobs
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; (T.S.D.); (A.G.); (J.P.J.); (V.L.); (E.A.M.)
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90025, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
- David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; (Y.C.); (E.D.)
| | - Venu Lagishetty
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; (T.S.D.); (A.G.); (J.P.J.); (V.L.); (E.A.M.)
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90025, USA
| | - Elizabeth Gallagher
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
| | - Ravi R. Bhatt
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine at USC, University of Southern California, Los Angeles, CA 90033, USA
| | - Priten Vora
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
| | - Vadim Osadchiy
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
- Department of Urology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Jean Stains
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
| | - Anna Balioukova
- UCLA Center for Obesity and METabolic Health (COMET), Los Angeles, CA 90024, USA;
| | - Yijun Chen
- David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; (Y.C.); (E.D.)
- UCLA Center for Obesity and METabolic Health (COMET), Los Angeles, CA 90024, USA;
| | - Erik Dutson
- David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; (Y.C.); (E.D.)
- UCLA Center for Obesity and METabolic Health (COMET), Los Angeles, CA 90024, USA;
| | - Emeran A. Mayer
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; (T.S.D.); (A.G.); (J.P.J.); (V.L.); (E.A.M.)
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
- David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; (Y.C.); (E.D.)
| | - Claudia Sanmiguel
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; (T.S.D.); (A.G.); (J.P.J.); (V.L.); (E.A.M.)
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90025, USA
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California, Los Angeles, CA 90095, USA; (E.G.); (R.R.B.); (P.V.); (V.O.); (J.S.)
- David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; (Y.C.); (E.D.)
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Saganuwan SA. Chemistry and Effects of Brainstem Acting Drugs. Cent Nerv Syst Agents Med Chem 2020; 19:180-186. [PMID: 31223094 DOI: 10.2174/1871524919666190620164355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 05/02/2019] [Accepted: 05/07/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND Brain is the most sensitive organ, whereas brainstem is the most important part of Central Nervous System (CNS). It connects the brain and the spinal cord. However, a myriad of drugs and chemicals affects CNS with severe resultant effects on the brainstem. METHODS In view of this, a number of literature were assessed for information on the most sensitive part of brain, drugs and chemicals that act on the brainstem and clinical benefit and risk assessment of such drugs and chemicals. RESULTS Findings have shown that brainstem regulates heartbeat, respiration and because it connects the brain and spinal cord, all the drugs that act on the spinal cord may overall affect the systems controlled by the spinal cord and brain. The message is sent and received by temporal lobe, occipital lobe, frontal lobe, parietal lobe and cerebellum. CONCLUSION Hence, the chemical functional groups of the brainstem and drugs acting on brainstem are complementary, and may produce either stimulation or depression of CNS.
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Affiliation(s)
- Saganuwan Alhaji Saganuwan
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Federal University of Agriculture, P.M.B. 2373, Makurdi, Benue State, Nigeria
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Cuéllar R, Montero S, Luquín S, García-Estrada J, Melnikov V, Virgen-Ortiz A, Lemus M, Pineda-Lemus M, de Álvarez-Buylla E. BDNF and AMPA receptors in the cNTS modulate the hyperglycemic reflex after local carotid body NaCN stimulation. Auton Neurosci 2017; 205:12-20. [PMID: 28254195 DOI: 10.1016/j.autneu.2017.02.001] [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: 04/20/2016] [Revised: 11/29/2016] [Accepted: 02/01/2017] [Indexed: 11/30/2022]
Abstract
The application of sodium cyanide (NaCN) to the carotid body receptors (CBR) (CBR stimulation) induces rapid blood hyperglycemia and an increase in brain glucose retention. The commissural nucleus tractus solitarius (cNTS) is an essential relay nucleus in this hyperglycemic reflex; it receives glutamatergic afferents (that also release brain derived neurotrophic factor, BDNF) from the nodose-petrosal ganglia that relays CBR information. Previous work showed that AMPA in NTS blocks hyperglycemia and brain glucose retention after CBR stimulation. In contrast, BDNF, which attenuates glutamatergic AMPA currents in NTS, enhances these glycemic responses. Here we investigated the combined effects of BDNF and AMPA (and their antagonists) in NTS on the glycemic responses to CBR stimulation. Microinjections of BDNF plus AMPA into the cNTS before CBR stimulation in anesthetized rats, induced blood hyperglycemia and an increase in brain arteriovenous (a-v) of blood glucose concentration difference, which we infer is due to increased brain glucose retention. By contrast, the microinjection of the TrkB antagonist K252a plus AMPA abolished the glycemic responses to CBR stimulation similar to what is observed after AMPA pretreatments. In BDNF plus AMPA microinjections preceding CBR stimulation, the number of c-fos immunoreactive cNTS neurons increased. In contrast, in the rats microinjected with K252a plus AMPA in NTS, before CBR stimulation, c-fos expression in cNTS decreased. The expression of AMPA receptors GluR2/3 did not change in any of the studied groups. These results indicate that BDNF in cNTS plays a key role in the modulation of the hyperglycemic reflex initiated by CBR stimulation.
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Affiliation(s)
- R Cuéllar
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Ave. 25 de Julio 965, Colima 28045, Mexico; Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Guadalajara 44340, Mexico
| | - S Montero
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Ave. 25 de Julio 965, Colima 28045, Mexico; Facultad de Medicina, Universidad de Colima, Ave. Universidad 333, Colima 28040, Mexico
| | - S Luquín
- Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Guadalajara 44340, Mexico
| | - J García-Estrada
- Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Guadalajara 44340, Mexico; División de Investigación Quirúrgica, Centro de Investigación Biomédica de Occidente, IMSS, Guadalajara, Mexico
| | - V Melnikov
- Facultad de Medicina, Universidad de Colima, Ave. Universidad 333, Colima 28040, Mexico
| | - A Virgen-Ortiz
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Ave. 25 de Julio 965, Colima 28045, Mexico
| | - M Lemus
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Ave. 25 de Julio 965, Colima 28045, Mexico
| | - M Pineda-Lemus
- Facultad de Medicina, Universidad de Colima, Ave. Universidad 333, Colima 28040, Mexico
| | - E de Álvarez-Buylla
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Ave. 25 de Julio 965, Colima 28045, Mexico.
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