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Navigation of migratory songbirds: a quantum magnetic compass sensor 候鸟导航:量子磁罗盘传感器
Neuroforum Pub Date : 2021-07-01 DOI: 10.1515/nf-2021-0005
Siu Ying Wong, Anders Frederiksen, Maja Hanić, Fabian Schuhmann, Gesa Grüning, P. Hore, I. Solov’yov
{"title":"Navigation of migratory songbirds: a quantum magnetic compass sensor","authors":"Siu Ying Wong, Anders Frederiksen, Maja Hanić, Fabian Schuhmann, Gesa Grüning, P. Hore, I. Solov’yov","doi":"10.1515/nf-2021-0005","DOIUrl":"https://doi.org/10.1515/nf-2021-0005","url":null,"abstract":"Abstract The remarkable ability of migratory birds to navigate accurately using the geomagnetic field for journeys of thousands of kilometres is currently thought to arise from radical pair reactions inside a protein called cryptochrome. In this article, we explain the quantum mechanical basis of the radical pair mechanism and why it is currently the dominant theory of compass magnetoreception. We also provide a brief account of two important computational simulation techniques that are used to study the mechanism in cryptochrome: spin dynamics and molecular dynamics. At the end, we provide an overview of current research on quantum mechanical processes in avian cryptochromes and the computational models for describing them.","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"141 - 150"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42678727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
The retinal circuitry for magnetoreception in migratory birds 候鸟的视网膜磁接收电路
Neuroforum Pub Date : 2021-06-30 DOI: 10.1515/nf-2021-0007
P. K. Seth, Vaishnavi Balaji, Karin Dedek
{"title":"The retinal circuitry for magnetoreception in migratory birds","authors":"P. K. Seth, Vaishnavi Balaji, Karin Dedek","doi":"10.1515/nf-2021-0007","DOIUrl":"https://doi.org/10.1515/nf-2021-0007","url":null,"abstract":"Abstract Night-migratory birds use the Earth’s magnetic field to determine the direction in which they want to migrate. Many studies suggest that this “magnetic compass sense” is light dependent and mediated by blue light sensors, called cryptochromes, which are expressed in the retina of night-migratory birds. In this review, we summarize the evidence that the avian retina processes not only visual information but also magnetic compass information. We also review the current knowledge on cryptochrome expression in the bird retina and highlight open questions which we aim to address within the framework of SFB 1372 Magnetoreception and Navigation in Vertebrates.","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"159 - 166"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44095505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The neuronal correlates of the avian magnetic senses 鸟类磁感应的神经元相关性
Neuroforum Pub Date : 2021-06-25 DOI: 10.1515/nf-2021-0008
Katrin Haase, Isabelle Musielak, D. Heyers
{"title":"The neuronal correlates of the avian magnetic senses","authors":"Katrin Haase, Isabelle Musielak, D. Heyers","doi":"10.1515/nf-2021-0008","DOIUrl":"https://doi.org/10.1515/nf-2021-0008","url":null,"abstract":"Abstract In addition to other natural orientation cues such as the stars, the sun, landmarks and olfactory cues, migrating birds possess the ability to orient by the Earth’s magnetic field. In recent years, neuroscientific research has pinpointed brain regions and connecting neuronal pathways that seem to be involved in processing magnetic information. To date, the most compelling neuroanatomical and behavioural evidence comes from the visual and trigeminal sensory systems. We expect that navigational information from both systems could be integrated in higher-order brain structures, such as the hippocampus and the “decision-making” caudolateral nidopallium. This review summarizes the current state of research on the neurosensory basis of magnetoreception in birds.","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"167 - 174"},"PeriodicalIF":0.0,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49596757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Endless skies and open seas – how birds and fish navigate 无垠的天空和开阔的海洋——鸟类和鱼类如何导航
Neuroforum Pub Date : 2021-06-24 DOI: 10.1515/nf-2021-0009
Lisa Spiecker, Bo Leberecht, Corinna Langebrake, Malien Laurien, Shambhavi Apte, H. Mouritsen, G. Gerlach, M. Liedvogel
{"title":"Endless skies and open seas – how birds and fish navigate","authors":"Lisa Spiecker, Bo Leberecht, Corinna Langebrake, Malien Laurien, Shambhavi Apte, H. Mouritsen, G. Gerlach, M. Liedvogel","doi":"10.1515/nf-2021-0009","DOIUrl":"https://doi.org/10.1515/nf-2021-0009","url":null,"abstract":"Abstract Every year, billions of animals leave their home range and start seasonal migrations in order to find more favorable resources and to escape harsh environmental conditions. These round trips often span thousands of kilometers. To successfully navigate along their route, animals rely on various external references. While landmarks and celestial cues like stars or the sun are easy to imagine as guidance on these journeys, using the geomagnetic field for orientation is more elusive. The geomagnetic field is an omnipresent cue, which can be sensed and relied upon by many animals, even when visual cues are sparse. How magnetic fields can be perceived seems to vary between birds and fish. While birds seem to use a mechanism based on the quantum mechanical properties of electron spins, fish may have evolved a compass similar in its function to the technical devises developed by humans. How these mechanisms work precisely and how they are integrated are research questions addressed in SFB 1372.","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"127 - 139"},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46652442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The secrets of cryptochromes: photoreceptors, clock proteins, and magnetic sensors 隐花色素的秘密:光感受器、时钟蛋白和磁传感器
Neuroforum Pub Date : 2021-06-24 DOI: 10.1515/nf-2021-0006
Rabea Bartölke, Heide Behrmann, Katharina Görtemaker, C. Yee, Jingjing Xu, E. Behrmann, K. Koch
{"title":"The secrets of cryptochromes: photoreceptors, clock proteins, and magnetic sensors","authors":"Rabea Bartölke, Heide Behrmann, Katharina Görtemaker, C. Yee, Jingjing Xu, E. Behrmann, K. Koch","doi":"10.1515/nf-2021-0006","DOIUrl":"https://doi.org/10.1515/nf-2021-0006","url":null,"abstract":"Abstract A class of light-activated proteins in the eyes of birds, called cryptochromes, are thought to act as the primary magnetic sensors allowing night-migratory songbirds to navigate over thousands of kilometers using the earth’s magnetic field. Having evolved from DNA-repairing photolyases, cryptochromes have redirected the energy from light to fuel a variety of other functions: as photoreceptors, as regulators of the circadian clock – and, in some species, most likely as sensors of the magnetic field. While the quantum effects of magnetic fields on cryptochromes are already being studied in detail, almost nothing is known about the signaling cascade involving cryptochrome as the primary receptor protein. Two different screening methods have identified potential interaction partners that suggest an involvement of the visual phototransduction pathway, the visual cycle, potassium channels or glutamate receptors, but more pioneering research is needed to unravel the signaling cascade responsible for transducing the magnetic signal.","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"151 - 157"},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42936750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Magnetoreception and navigation in vertebrates from quantum mechanics to neuroscience and behaviour 从量子力学到神经科学和行为，脊椎动物的磁感受和导航
Neuroforum Pub Date : 2021-06-24 DOI: 10.1515/nf-2021-0016
H. Mouritsen
{"title":"Magnetoreception and navigation in vertebrates from quantum mechanics to neuroscience and behaviour","authors":"H. Mouritsen","doi":"10.1515/nf-2021-0016","DOIUrl":"https://doi.org/10.1515/nf-2021-0016","url":null,"abstract":"","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"123 - 125"},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46773692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DFG research unit 3004: “Synaptic pathology in autoimmune encephalitis” (SYNABS) DFG研究单元3004:“自身免疫性脑炎的突触病理学”(SYNABS)
Neuroforum Pub Date : 2021-06-22 DOI: 10.1515/nf-2021-0015
C. Geis, S. Hallermann
{"title":"DFG research unit 3004: “Synaptic pathology in autoimmune encephalitis” (SYNABS)","authors":"C. Geis, S. Hallermann","doi":"10.1515/nf-2021-0015","DOIUrl":"https://doi.org/10.1515/nf-2021-0015","url":null,"abstract":"","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"177 - 179"},"PeriodicalIF":0.0,"publicationDate":"2021-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/nf-2021-0015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46107955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nachruf Dr. Jan Kunze (1968–2021) Jan Kunze博士的讣告（1968–2021）
Neuroforum Pub Date : 2021-04-23 DOI: 10.1515/nf-2021-0014
Andreas Gumbert, Ileana L. Hanganu-Opatz
{"title":"Nachruf Dr. Jan Kunze (1968–2021)","authors":"Andreas Gumbert, Ileana L. Hanganu-Opatz","doi":"10.1515/nf-2021-0014","DOIUrl":"https://doi.org/10.1515/nf-2021-0014","url":null,"abstract":"","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"105 - 107"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49668512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neurons interact with the microbiome: an evolutionary-informed perspective 神经元与微生物组相互作用：进化知情视角
Neuroforum Pub Date : 2021-04-01 DOI: 10.1515/nf-2021-0003
Christoph Giez, A. Klimovich, T. Bosch
{"title":"Neurons interact with the microbiome: an evolutionary-informed perspective","authors":"Christoph Giez, A. Klimovich, T. Bosch","doi":"10.1515/nf-2021-0003","DOIUrl":"https://doi.org/10.1515/nf-2021-0003","url":null,"abstract":"Abstract Animals have evolved within the framework of microbes and are constantly exposed to diverse microbiota. Microbes colonize most, if not all, animal epithelia and influence the activity of many organs, including the nervous system. Therefore, any consideration on nervous system development and function in the absence of the recognition of microbes will be incomplete. Here, we review the current knowledge on the nervous systems of Hydra and its role in the host–microbiome communication. We show that recent advances in molecular and imaging methods are allowing a comprehensive understanding of the capacity of such a seemingly simple nervous system in the context of the metaorganism. We propose that the development, function and evolution of neural circuits must be considered in the context of host–microbe interactions and present Hydra as a strategic model system with great basic and translational relevance for neuroscience.","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"89 - 98"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/nf-2021-0003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42431477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Respiratory viral infections and associated neurological manifestations 呼吸道病毒感染及相关神经系统表现
Neuroforum Pub Date : 2021-03-29 DOI: 10.1515/nf-2020-0035
Shirin Hosseini, Kristin Michaelsen-Preusse, M. Korte
{"title":"Respiratory viral infections and associated neurological manifestations","authors":"Shirin Hosseini, Kristin Michaelsen-Preusse, M. Korte","doi":"10.1515/nf-2020-0035","DOIUrl":"https://doi.org/10.1515/nf-2020-0035","url":null,"abstract":"Abstract Respiratory viruses as a major threat to human and animal health today are still a leading cause of worldwide severe pandemics. Although the primary target tissue of these viruses is the lung, they can induce immediate or delayed neuropathological manifestations in humans and animals. Already after the Spanish flu (1918/20) evidence accumulated that neurological diseases can be induced by respiratory viral infections as some patients showed parkinsonism, seizures, or dementia. In the recent outbreak of COVID-19 as well patients suffered from headache, dizziness, nausea, or reduced sense of smell and taste suggesting that SARS-CoV2 may affect the central nervous system (CNS). It was shown that different respiratory viral infections can lead to deleterious complications in the CNS by a direct invasion of the virus into the brain and/or indirect pathways via proinflammatory cytokine expression. Therefore, we will discuss in this review mechanisms how the most prevalent respiratory viruses including influenza and coronaviruses in humans can exert long-lasting detrimental effects on the CNS and possible links to the development of neurodegenerative diseases as an enduring consequence.","PeriodicalId":56108,"journal":{"name":"Neuroforum","volume":"27 1","pages":"53 - 65"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/nf-2020-0035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42600924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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