Release Date: 2024-05-28

Nervous System, Neurons, and Metabolism

Release Date: 2024-05-28

Alzheimer’s disease (AD) is a neurodegenerative disorder that leads to cognitive decline and is the most common form of dementia in the elderly. Neurons, as the primary cells of the central nervous system, are fundamental to brain function. Understanding their structure and functions is crucial for grasping AD mechanisms. Neurons consist of three main components: [...]

Media Type
    Buy from

    Price may vary by retailers

    Work TypeBook Chapter
    Published inAlzheimer’s Disease From Molecular Mechanisms to Clinical Practices
    First Page3
    Last Page36
    DOIhttps://doi.org/10.69860/nobel.9786053359166.1
    LanguageENG
    Page Count34
    Copyright HolderNobel Tıp Kitabevleri
    Licensehttps://nobelpub.com/publish-with-us/copyright-and-licensing
    Alzheimer’s disease (AD) is a neurodegenerative disorder that leads to cognitive decline and is the most common form of dementia in the elderly. Neurons, as the primary cells of the central nervous system, are fundamental to brain function. Understanding their structure and functions is crucial for grasping AD mechanisms.
    Neurons consist of three main components: the cell body (soma), dendrites, and axon. The cell body is the metabolic center of the neuron, containing the nucleus and organelles. Dendrites receive signals from other neurons, while axons transmit these signals to other neurons or muscle cells. Synaptic terminals at the end of axons release neurotransmitters, facilitating communication between neurons.
    Neuronal metabolic activities include energy production, protein synthesis, and intracellular transport. Mitochondria play a crucial role in energy production, and mitochondrial dysfunction is a significant factor in AD. Reduced energy production adversely affects neuronal functionality and survival. In conclusion, the structure and metabolic processes of neurons play a critical role in the pathogenesis of AD. The disruption of neuronal structures and functions leads to the clinical manifestations of AD. Therefore, protecting neurons and supporting their functions are crucial targets in the treatment of AD.The initial part of the book provides an essential understanding of neuron biology, focusing on their functions and energy metabolism. The section examines the structural characteristics of neurons and their roles in neural communication. The chapter emphasizes efficient metabolic pathways, detailing glycolysis, oxidative phosphorylation, and ATP generation, and highlights the critical dependence of neuronal function on a continuous and sufficient energy supply.

    Dildar Konukoglu (Author)
    Professor, Istanbul Cerrahpasa University
    https://orcid.org/0000-0002-6095-264X
    3Dildar Konukoğlu was born on April 18, 1963, in Istanbul. She obtained her medical degree from Ege University in 1987. In 1991, she attained the rank of specialist in Medical Biochemistry. In 1995, she was promoted to the position of associate professor of medical biochemistry and, in 2000, to the rank of professor. She is currently a member of the faculty at the Department of Medical Biochemistry at Cerrahpaşa Medical Faculty and serves as the director of the Medical Biochemistry Laboratory at Cerrahpaşa Medical Faculty Hospital. She also holds the role of Chairman of the Environmental Management Unit of Cerrahpaşa Medical Faculty. Furthermore, she serves as the director of the Istanbul University-Cerrahpaşa Clinical Research Excellence Application and Research Center. She has participated in numerous commissions within the Ministry of Health and currently serves as a member of the Medical Specialty Education Commission. She served as the Head of the Department of Medical Biochemistry from 2016 to 2019. She has advised on 10 postgraduate test projects and participated in 25 completed projects as an executive or researcher. She has published a total of 180 original articles, 130 of which are international. Her WOS H index is 25. She has authored or edited 64 books and has delivered lectures and organized courses at numerous congresses and symposia. Her primary clinical research interests include endocrinology, neurology, nephrology, neonatal metabolic diseases, obesity, and atherosclerosis-related biomolecular mechanisms and pathways. Since 2016, she has served as the Chairman of the Board of Directors of the Association of Clinical Biochemists. She is the Editor-in-Chief of the International Journal of Medical Biochemistry. She is married and has a son.

    • de Carvalho M, Swash M. Upper and lower motor neuron neurophysiology and motor control. Handb Clin Neurol. 2013; 195:17-29.

    • Farley A, Johnstone C, Hendry C, McLafferty E. Nervous system: part 1. Nurs Stand. 2014; 28(31):46-51.

    • Farley A, McLafferty E, Johnstone C, Hendry C. Nervous system: part 3. Nurs Stand. 2014; 28(33):46-50.

    • Clark JA, Amara SG. Amino acid neurotransmitter transporters: structure, function, and molecular diversity. Bioessays. 1993; 15(5):323-332.

    • Rangel-Gomez M, Meeter M. Neurotransmitters and Novelty: A Systematic Review. J Psychopharmacol. 2016; 30(1):3-12.

    • Bielefeldt K, Christianson JA, Davis BM. Basic and clinical aspects of visceral sensation: transmission in the CNS. Neurogastroenterol Motil. 2005; 7(4):488-499.

    • Kanning KC, Kaplan A, Henderson CE. Motor neuron diversity in development and disease. Annu Rev Neurosci. 2010; 33:409-440.

    • Azevedo FA, Carvalho LR, Grinberg LT, Farfel JM, Ferretti RE, Leite RE, et al. Equal numbers of neuronal and nonneuronal cells make the human brain an isometrically scaled-up primate brain. J Comp Neurol. 2009; 10; 513(5):532-541.

    • Bean BP. The action potential in mammalian central neurons. Nat Rev Neurosci. 2007; 8(6):451-465.

    • Hyman SE. Neurotransmitters. Curr Biol. 2005; 8;15(5):R154-R158.

    • Bigbee JW. Cells of the Central Nervous System: An Overview of Their Structure and Function. Adv Neurobiol. 2023; 29:41-64.

    • Hutton D, Fadelalla MG, Kanodia AK, Hossain-Ibrahim K. Choroid plexus and CSF: an updated review. Br J Neurosurg. 2022; 36(3):307-315.

    • Debanne D, Campanac E, Bialowas A, Carlier E, Alcaraz G. Axon physiology. Physiol Rev. 2011; 91(2):555-602.

    • Shin M, Wang Y, Borgus JR, Venton BJ. Electrochemistry at the Synapse. Annu Rev Anal Chem. 2019; 12(1):297-321.

    • Dent EW. Dynamic microtubules at the synapse. Curr Opin Neurobiol. 2020; 63:9-14.

    • O'Shea TM, Burda JE, Sofroniew MV. Cell biology of spinal cord injury and repair. J Clin Invest. 2017; 1;127(9):3259-3270.

    • Rocco ML, Soligo M, Manni L, Aloe L. Nerve Growth Factor: Early Studies and Recent Clinical Trials. Curr Neuropharmacol. 2018; 16(10):1455-1465.

    • Tavosanis G. Dendrite enlightenment. Curr Opin Neurobiol. 2021; 69:222-230.

    • Xiao Q, Hu X, Wei Z, Tam KY. Cytoskeleton Molecular Motors: Structures and Their Functions in Neuron. Int J Biol Sci. 2016; 12(9):1083-1092.

    • Donato R. S-100 proteins. Cell Calcium. 1986; 7(3):123-145.

    • Tavosanis G. Dendritic structural plasticity. Dev Neurobiol. 2012; 72(1):73-86.

    • Faridaalee G, Keyghobadi Khajeh F. Serum and Cerebrospinal Fluid Levels of S-100β Is A Biomarker for Spinal Cord Injury, a Systematic Review and Meta-Analysis. Arch Acad Emerg Med. 2019; 7(1): e19.

    • Isgrò MA, Bottoni P, Scatena R. Neuron-Specific Enolase as a Biomarker: Biochemical and Clinical Aspects. Adv Exp Med Biol. 2015; 867:125-143.

    • Vasile F, Dossi E, Rouach N. Human astrocytes: structure and functions in the healthy brain. Brain Struct Funct. 2017; 222(5):2017-2029.

    • Brandebura AN, Paumier A, Onur TS, Allen NJ. Astrocyte contribution to dysfunction, risk, and progression in neurodegenerative disorders. Nat Rev Neurosci. 2023; 24(1):23-39.

    • Chen Z, Yuan Z, Yang S, Zhu Y, Xue M, Zhang J, Leng L. Brain Energy Metabolism: Astrocytes in Neurodegenerative Diseases. CNS Neurosci Ther. 2023; 9(1):24-36.

    • Hasel P, Aisenberg WH, Bennett FC, Liddelow SA. Molecular and metabolic heterogeneity of astrocytes and microglia. Cell Metab. 2023; 35(4):555-570.

    • Kwon HS, Koh SH. Neuroinflammation in neurodegenerative disorders: the roles of microglia and astrocytes. Transl Neurodegener. 2020; 9(1):42.

    • Butt AM, Papanikolaou M, Rivera A. Physiology of Oligodendroglia. Adv Exp Med Biol. 2019; 1175:117-128.

    • Dawson MR, Levine JM, Reynolds R. NG2-expressing cells in the central nervous system: are they oligodendroglial progenitors? J Neurosci Res. 2000; 61(5):471-479.

    • Stadelmann C, Timmler S, Barrantes-Freer A, Simons M. Myelin in the Central Nervous System: Structure, Function, and Pathology. Physiol Rev. 2019; 99(3):1381-1431.

    • Ligon K, Alberta J, Kho A, Weiss J, Kwaan M, Nutt C, et al. The oligodendroglial lineage marker Olig2 is universally expressed in diffuse gliomas. J Neuropathol Exp Neurol. 2004; 63:499–509.

    • Garcia-Diaz B, Baron-Van Evercooren A. Schwann cells: Rescuers of central demyelination. Glia. 2020; 10):1945-1956.

    • Wright-Jin EC, Gutmann DH. Microglia as Dynamic Cellular Mediators of Brain Function. Trends Mol Med. 2019; 5(11):967-979.

    • Deng S, Gan L, Liu C, Xu T, Zhou S, Guo Y, Zhang Z, Yang GY, Tian H, Tang Y. Roles of Ependymal Cells in the Physiology and Pathology of the Central Nervous System. Aging Dis. 2023; 14(2):468-483.

    • Kabba JA, Xu Y, Christian H, Ruan W, Chenai K, Xiang Y, Zhang L, Saavedra JM, Pang T. Microglia: Housekeeper of the Central Nervous System. Cell Mol Neurobiol. 2018; 38(1):53-71.

    • Li Q., Barres BA. Microglia and macrophages in brain homeostasis and disease. Nature Reviews Immunology. 2018; 18(4):225–242.

    • Lier J, Streit WJ, Bechmann I. Beyond Activation: Characterizing Microglial Functional Phenotypes. Cells. 2021; 10(9):2236.

    • Bolino A. Myelin Biology. Neurotherapeutics. 2021; 18(4):2169-2184.

    • Longbrake E. Myelin Oligodendrocyte Glycoprotein-Associated Disorders. Continuum (Minneap Minn). 2022; 28(4):1171-1193.

    • Pestronk A, Schmidt RE, Bucelli R, Sim J. Schwann cells and myelin in human peripheral nerve: Major protein components vary with age, axon size, and pathology. Neuropathol Appl Neurobiol. 2023; 49(2): e12898.

    • Sedzik J, Jastrzebski JP, Grandis M. Glycans of myelin proteins. J Neurosci Res. 2015; 93(1):1-18.

    • Buchthal F, Carlsen F, Behse F. Schmidt-Lanterman clefts: a morphometric study in human sural nerve. Am J Anat. 1987; 180(2):156-160.

    • Tricaud N. Myelinating Schwann Cell Polarity and Mechanically Driven Myelin Sheath Elongation. Front Cell Neurosci. 2018; 11:414.

    • Lemus HN, Warrington AE, Rodriguez M. Multiple Sclerosis: Mechanisms of Disease and Strategies for Myelin and Axonal Repair. Neurol Clin. 2018; 36(1):1-11.

    • Huang Z, Jordan JD, Zhang Q. Myelin Pathology in Alzheimer's Disease: Potential Therapeutic Opportunities. Aging Dis. 2024; 15(2):698-713.

    • Wolf NI, Ffrench-Constant C, van der Knaap MS. Hypomyelinating leukodystrophies - unravelling myelin biology. Nat Rev Neurol. 2021; 17(2):88-103.

    • Hertzog N, Jacob C. Mechanisms and treatment strategies of demyelinating and dysmyelinating Charcot-Marie-Tooth disease. Neural Regen Res. 2023; 18(9):1931-1939.

    • Engelhardt B, Sorokin L. The blood-brain and the blood-cerebrospinal fluid barriers: function and dysfunction. Semin Immunopathol. 2009; 31(4):497-511.

    • Keaney J, Campbell M. The dynamic blood-brain barrier. FEBS J. 2015; 282(21):4067-4079.

    • Kadry H, Noorani B, Cucullo L. A blood-brain barrier overview on structure, function, impairment, and biomarkers of integrity. Fluids Barriers CNS. 2020; 17(1):69.

    • Barichello T (ed). Blood-Brain Barrier. Springer Science+Business Media, LLC, part of Springer Nature 2019; ISSN 1940-6045.

    • Felmlee MA, Jones RS, Rodriguez-Cruz V, Follman KE, Morris ME. Monocarboxylate Transporters (SLC16): Function, Regulation, and Role in Health and Disease. Pharmacol Rev. 2020; 72(2):466-485.

    • Goaillard JM, Marder E. Ion Channel Degeneracy, Variability, and Covariation in Neuron and Circuit Resilience. Annu Rev Neurosci. 2021; 44:335-357.

    • Nguyen LN, Ma D, Shui G, Wong P, Cazenave-Gassiot A, Zhang X, et al. Mfsd2a is a transporter for the essential omega-3 fatty acid docosahexaenoic acid. Nature. 2014; 509(7501):503-506.

    • Patching SG. Glucose Transporters at the Blood-Brain Barrier: Function, Regulation and Gateways for Drug Delivery. Mol Neurobiol. 2017; 54(2):1046-1077.

    • Cai Z, Qiao PF, Wan CQ, Cai M, Zhou NK, Li Q. Role of Blood-Brain Barrier in Alzheimer's Disease. J Alzheimers Dis. 2018; 63(4):1223-1234.

    • Lajoie JM, Shusta EV. Targeting receptor-mediated transport for delivery of biologics across the blood-brain barrier. Annu Rev Pharmacol Toxicol. 2015; 55:613-631.

    • Profaci CP, Munji RN, Pulido RS, Daneman R. The blood–brain barrier in health and disease: Important unanswered questions. J Exp Med. 2020; 217(4): e20190062.

    • Sweeney MD, Zhao Z, Montagne A, Nelson AR, Zlokovic BV. Blood-Brain Barrier: From Physiology to Disease and Back. Physiol Rev. 2019; 99(1):21-78.

    • Uprety A, Kang Y, Kim SY. Blood-brain barrier dysfunction as a potential therapeutic target for neurodegenerative disorders. Arch Pharm Res. 2021; 44(5):487-498.

    • Hrishi AP, Sethuraman M. Cerebrospinal Fluid (CSF) Analysis and Interpretation in Neurocritical Care for Acute Neurological Conditions. Indian J Crit Care Med. 2019; 23(Suppl 2): S115-S119.

    • Mundt L (ed). Graff’s Textbook of Urinalysis and Body Fluids. 3rd edition. Jones & Bartlett Learning; 2015.

    • Hepnar D, Adam P, Žáková H, Krušina M, Kalvach P, Kasík J, et al. Recommendations for cerebrospinal fluid analysis. Folia Microbiol (Praha). 2019; 64(3):443-452.

    • Long B, Koyfman A, Runyon MS. Subarachnoid Hemorrhage: Updates in Diagnosis and Management. Emerg Med Clin North Am. 2017; 35(4):803-824.

    • Chen B, Tian DS, Bu BT. A Comparison of IgG Index and Oligoclonal Band in the Cerebrospinal Fluid for Differentiating between RRMS and NMOSD. Brain Sci. 2021; 12(1):69.

    • Bjerke M, Engelborghs S. Cerebrospinal Fluid Biomarkers for Early and Differential Alzheimer's Disease Diagnosis. J Alzheimers Dis. 2018; 62(3):1199-1209.

    • Fu Y, Zhao D, Yang L. Protein-based biomarkers in cerebrospinal fluid and blood for Alzheimer's disease. J Mol Neurosci. 2014; 54(4):739-747.

    • Lewczuk P, Riederer P, O'Bryant SE, et al. Cerebrospinal fluid and blood biomarkers for neurodegenerative dementias: An update of the Consensus of the Task Force on Biological Markers in Psychiatry of the World Federation of Societies of Biological Psychiatry. World J Biol Psychiatry. 2018; 19(4):244-328.

    • Beishon LC, Hosford P, Gurung D, Brassard P, Minhas JS, Robinson TG, et al. The role of the autonomic nervous system in cerebral blood flow regulation in dementia: A review. Auton Neurosci. 2022; 240:102985.

    • Venkat P, Chopp M, Chen J. New insights into coupling and uncoupling of cerebral blood flow and metabolism in the brain. Croat Med J. 2016; 57(3):223-228.

    • Jha MK, Morrison BM. Glia-neuron energy metabolism in health and diseases: New insights into the role of nervous system metabolic transporters. Exp Neurol. 2018; 309:23-31.

    • Yuan TF, Gu S, Shan C, Marchado S, Arias-Carrión O. Oxidative Stress and Adult Neurogenesis. Stem Cell Rev Rep. 2015; 11(5):706-709.

    • Dienel GA. Brain Glucose Metabolism: Integration of Energetics with Function. Physiol Rev. 2019; 99(1):949-1045.

    • López-Gambero AJ, Martínez F, Salazar K, Cifuentes M, Nualart F. Brain Glucose-Sensing Mechanism and Energy Homeostasis. Mol Neurobiol. 2019; 56(2):769-796.

    • Trigo D, Avelar C, Fernandes M, Sá J, da Cruz E Silva O. Mitochondria, energy, and metabolism in neuronal health and disease. FEBS Lett. 2022; 596(9):1095-1110.

    • Panov A, Orynbayeva Z, Vavilin V, Lyakhovich V. Fatty acids in energy metabolism of the central nervous system. Biomed Res Int. 2014:472459.

    • Schönfeld P, Reiser G. How the brain fights fatty acids' toxicity. Neurochem Int. 2021; 148:105050.

    • Jensen NJ, Wodschow HZ, Nilsson M, Rungby J. Effects of Ketone Bodies on Brain Metabolism and Function in Neurodegenerative Diseases. Int J Mol Sci. 2020; 21(22):8767.

    • Engin AB, Engin ED, Karakus R, Aral A, Gulbahar O, Engin A. N-Methyl-D aspartate receptor-mediated effect on glucose transporter-3 levels of high glucose exposed-SH-SY5Y dopaminergic neurons. Food Chem Toxicol. 2017; 109(Pt 1):465-471.

    • Sajadi E, Sajedianfard J, Hosseinzadeh S, Taherianfard M. Effect of insulin and cinnamon extract on spatial memory and gene expression of GLUT1, 3, and 4 in streptozotocin-induced Alzheimer's model in rats. Iran J Basic Med Sci. 2023; 26(6):680-687.

    • Tang BL. Glucose, glycolysis, and neurodegenerative diseases. J Cell Physiol. 2020; 235(11):7653-7662.

    • Tang BL. Neuroprotection by glucose-6-phosphate dehydrogenase and the pentose phosphate pathway. J Cell Biochem. 2019; 20(9):14285-14295.

    • Alaamery M, Albesher N, Aljawini N, Alsuwailm M, Massadeh S, Wheeler MA, Chao CC, Quintana FJ. Role of sphingolipid metabolism in neurodegeneration. J Neurochem. 2021; 158(1):25-35.

    • Montesinos J, Guardia-Laguarta C, Area-Gomez E. The fat brain. Curr Opin Clin Nutr Metab Care. 2020; 23(2):68-75.

    • Zhang J, Liu Q. Cholesterol metabolism and homeostasis in the brain. Protein Cell. 2015; 6(4):254-264.

    • Kim HY, Huang BX, Spector AA. Phosphatidylserine in the brain: metabolism and function. Prog Lipid Res. 2014; 56:1-18.

    • Poitelon Y, Kopec AM, Belin S. Myelin Fat Facts: An Overview of Lipids and Fatty Acid Metabolism. Cells. 2020; 9(4):812.

    • Ayub M, Jin HK, Bae JS. Novelty of Sphingolipids in the Central Nervous System Physiology and Disease: Focusing on the Sphingolipid Hypothesis of Neuroinflammation and Neurodegeneration. Int J Mol Sci. 2021; 22(14):7353.

    • Yoon JH, Seo Y, Jo YS, Lee S, Cho E, Cazenave-Gassiot A, et al. Brain lipidomics: From functional landscape to clinical significance. Sci Adv. 2022; 8(37): eadc9317.

    Share This Chapter!