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  1. Book ; Online ; E-Book: Circadian rhythms in bacteria and microbiomes

    Rust, Michael J. / Johnson, Carl Hirschie

    2021  

    Author's details Carl Hirschie Johnson and Michael Joseph Rust (editors)
    Keywords Prokaryotes ; Circadian rhythms ; Procariotes ; Ritmes circadiaris
    Subject code 579.3
    Language English
    Size 1 online resource (424 pages)
    Publisher Springer
    Publishing place Cham, Switzerland
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    ISBN 3-030-72158-2 ; 3-030-72157-4 ; 978-3-030-72158-9 ; 978-3-030-72157-2
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

    Full text online

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  2. Article: Synechocystis

    Zhao, Chi / Xu, Yao / Wang, Bo / Johnson, Carl Hirschie

    Frontiers in physiology

    2023  Volume 13, Page(s) 1085959

    Abstract: The study of circadian rhythms in bacteria was transformed by studies of the ... ...

    Abstract The study of circadian rhythms in bacteria was transformed by studies of the cyanobacterium
    Language English
    Publishing date 2023-01-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564217-0
    ISSN 1664-042X
    ISSN 1664-042X
    DOI 10.3389/fphys.2022.1085959
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Bioluminescent Sensors for Ca

    Yang, Jie / Johnson, Carl Hirschie

    Frontiers in bioengineering and biotechnology

    2021  Volume 9, Page(s) 773353

    Abstract: Sensitive detection of biological events is a goal for the design and characterization of sensors that can be ... ...

    Abstract Sensitive detection of biological events is a goal for the design and characterization of sensors that can be used
    Language English
    Publishing date 2021-10-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2719493-0
    ISSN 2296-4185
    ISSN 2296-4185
    DOI 10.3389/fbioe.2021.773353
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Spectres of Clock Evolution: Past, Present, and Yet to Come.

    Jabbur, Maria Luísa / Johnson, Carl Hirschie

    Frontiers in physiology

    2022  Volume 12, Page(s) 815847

    Abstract: Circadian clocks are phylogenetically widespread biological oscillators that allow organisms to entrain to environmental cycles and use their steady-state phase relationship to anticipate predictable daily phenomena - such as the light-dark transitions ... ...

    Abstract Circadian clocks are phylogenetically widespread biological oscillators that allow organisms to entrain to environmental cycles and use their steady-state phase relationship to anticipate predictable daily phenomena - such as the light-dark transitions of a day - and prepare accordingly. Present from cyanobacteria to mammals, circadian clocks are evolutionarily ancient and are thought to increase the fitness of the organisms that possess them by allowing for better resource usage and/or proper internal temporal order. Here, we review literature with respect to the ecology and evolution of circadian clocks, with a special focus on cyanobacteria as model organisms. We first discuss what can be inferred about future clock evolution in response to climate change, based on data from latitudinal clines and domestication. We then address our current understanding of the role that circadian clocks might be contributing to the adaptive fitness of cyanobacteria at the present time. Lastly, we discuss what is currently known about the oldest known circadian clock, and the early Earth conditions that could have led to its evolution.
    Language English
    Publishing date 2022-02-11
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2564217-0
    ISSN 1664-042X
    ISSN 1664-042X
    DOI 10.3389/fphys.2021.815847
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Evaluating the Adaptive Fitness of Circadian Clocks and their Evolution.

    Jabbur, Maria Luísa / Dani, Chitrang / Spoelstra, Kamiel / Dodd, Antony N / Johnson, Carl Hirschie

    Journal of biological rhythms

    2024  Volume 39, Issue 2, Page(s) 115–134

    Abstract: Surely most chronobiologists believe circadian clocks are an adaptation of organisms that enhances fitness, but are we certain that this focus of our research effort really confers a fitness advantage? What is the evidence, and how do we evaluate it? ... ...

    Abstract Surely most chronobiologists believe circadian clocks are an adaptation of organisms that enhances fitness, but are we certain that this focus of our research effort really confers a fitness advantage? What is the evidence, and how do we evaluate it? What are the best criteria? These questions are the topic of this review. In addition, we will discuss selective pressures that might have led to the historical evolution of circadian systems while considering the intriguing question of whether the ongoing climate change is modulating these selective pressures so that the clock is still evolving.
    MeSH term(s) Circadian Clocks/genetics ; Circadian Rhythm
    Language English
    Publishing date 2024-01-07
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 896387-3
    ISSN 1552-4531 ; 0748-7304
    ISSN (online) 1552-4531
    ISSN 0748-7304
    DOI 10.1177/07487304231219206
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2872: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  6. Article: Circadian biology and sleep in monogenic neurological disorders and its potential application in drug discovery.

    Shi, Shu-Qun / Johnson, Carl Hirschie

    Current opinion in behavioral sciences

    2018  Volume 25, Page(s) 23–30

    Abstract: Sleep disturbances are common in people with monogenic neurological disorders and they dramatically affect the life of individuals with the disorders and their families. The associated sleep problems are probably caused by multiple factors that have not ... ...

    Abstract Sleep disturbances are common in people with monogenic neurological disorders and they dramatically affect the life of individuals with the disorders and their families. The associated sleep problems are probably caused by multiple factors that have not been elucidated. Study of the underlying molecular cause, behavioral phenotypes, and reciprocal interactions in several single-gene disorders (Angelman Syndrome, Fragile X Syndrome, Rett Syndrome, and Huntington's Disease) leads to the suggestion that sleep disruption and other symptoms may directly result from abnormal operation of circadian systems due to genetic alteration and/or conflicting environmental cues for clock entrainment. Therefore, because circadian patterns modify the symptoms of neurological disorders, treatments that modulate our daily rhythms may identify heretofore unappreciated therapies for the underlying disorders.
    Language English
    Publishing date 2018-07-04
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2352-1546
    ISSN 2352-1546
    DOI 10.1016/j.cobeha.2018.06.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Host circadian behaviors exert only weak selective pressure on the gut microbiome under stable conditions but are critical for recovery from antibiotic treatment.

    Chi Zhao / Kevin Kelly / Maria Luísa Jabbur / Marcell Paguaga / Megan Behringer / Carl Hirschie Johnson

    PLoS Biology, Vol 20, Iss 11, p e

    2022  Volume 3001865

    Abstract: The circadian rhythms of hosts dictate an approximately 24 h transformation in the environment experienced by their gut microbiome. The consequences of this cyclic environment on the intestinal microbiota are barely understood and are likely to have ... ...

    Abstract The circadian rhythms of hosts dictate an approximately 24 h transformation in the environment experienced by their gut microbiome. The consequences of this cyclic environment on the intestinal microbiota are barely understood and are likely to have medical ramifications. Can daily rhythmicity in the gut act as a selective pressure that shapes the microbial community? Moreover, given that several bacterial species have been reported to exhibit circadian rhythms themselves, we test here whether a rhythmic environment is a selective pressure that favors clock-harboring bacteria that can anticipate and prepare for consistent daily changes in the environment. We observed that the daily rhythmicity of the mouse gut environment is a stabilizing influence that facilitates microbiotal recovery from antibiotic perturbation. The composition of the microbiome recovers to pretreatment conditions when exposed to consistent daily rhythmicity, whereas in hosts whose feeding and activity patterns are temporally disrupted, microbiotal recovery is incomplete and allows potentially unhealthy opportunists to exploit the temporal disarray. Unexpectedly, we found that in the absence of antibiotic perturbation, the gut microbiome is stable to rhythmic versus disrupted feeding and activity patterns. Comparison of our results with those of other studies reveals an intriguing correlation that a stable microbiome may be resilient to one perturbation alone (e.g., disruption of the daily timing of host behavior and feeding), but not to multiple perturbations in combination. However, after a perturbation of the stable microbiome, a regular daily pattern of host behavior/feeding appears to be essential for the microbiome to recover to the original steady state. Given the inconsistency of daily rhythms in modern human life (e.g., shiftwork, social jet-lag, irregular eating habits), these results emphasize the importance of consistent daily rhythmicity to optimal health not only directly to the host, but also indirectly by preserving the host's ...
    Keywords Biology (General) ; QH301-705.5
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Host circadian behaviors exert only weak selective pressure on the gut microbiome under stable conditions but are critical for recovery from antibiotic treatment.

    Zhao, Chi / Kelly, Kevin / Jabbur, Maria Luísa / Paguaga, Marcell / Behringer, Megan / Johnson, Carl Hirschie

    PLoS biology

    2022  Volume 20, Issue 11, Page(s) e3001865

    Abstract: The circadian rhythms of hosts dictate an approximately 24 h transformation in the environment experienced by their gut microbiome. The consequences of this cyclic environment on the intestinal microbiota are barely understood and are likely to have ... ...

    Abstract The circadian rhythms of hosts dictate an approximately 24 h transformation in the environment experienced by their gut microbiome. The consequences of this cyclic environment on the intestinal microbiota are barely understood and are likely to have medical ramifications. Can daily rhythmicity in the gut act as a selective pressure that shapes the microbial community? Moreover, given that several bacterial species have been reported to exhibit circadian rhythms themselves, we test here whether a rhythmic environment is a selective pressure that favors clock-harboring bacteria that can anticipate and prepare for consistent daily changes in the environment. We observed that the daily rhythmicity of the mouse gut environment is a stabilizing influence that facilitates microbiotal recovery from antibiotic perturbation. The composition of the microbiome recovers to pretreatment conditions when exposed to consistent daily rhythmicity, whereas in hosts whose feeding and activity patterns are temporally disrupted, microbiotal recovery is incomplete and allows potentially unhealthy opportunists to exploit the temporal disarray. Unexpectedly, we found that in the absence of antibiotic perturbation, the gut microbiome is stable to rhythmic versus disrupted feeding and activity patterns. Comparison of our results with those of other studies reveals an intriguing correlation that a stable microbiome may be resilient to one perturbation alone (e.g., disruption of the daily timing of host behavior and feeding), but not to multiple perturbations in combination. However, after a perturbation of the stable microbiome, a regular daily pattern of host behavior/feeding appears to be essential for the microbiome to recover to the original steady state. Given the inconsistency of daily rhythms in modern human life (e.g., shiftwork, social jet-lag, irregular eating habits), these results emphasize the importance of consistent daily rhythmicity to optimal health not only directly to the host, but also indirectly by preserving the host's microbiome in the face of perturbations.
    MeSH term(s) Humans ; Mice ; Animals ; Gastrointestinal Microbiome ; Circadian Rhythm ; Microbiota ; Bacteria ; Anti-Bacterial Agents/pharmacology
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2022-11-09
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2126776-5
    ISSN 1545-7885 ; 1544-9173
    ISSN (online) 1545-7885
    ISSN 1544-9173
    DOI 10.1371/journal.pbio.3001865
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 6193: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  9. Article ; Online: A BRET Ca

    Cumberbatch, Derrick / Mori, Tetsuya / Yang, Jie / Mi, Dehui / Vinson, Paige / Weaver, C David / Johnson, Carl Hirschie

    Science signaling

    2022  Volume 15, Issue 747, Page(s) eabq7618

    Abstract: The intrinsic fluorescence of samples confounds the use of fluorescence-based sensors. This is of particular concern in high-throughput screening (HTS) applications using large chemical libraries containing intrinsically fluorescent compounds. To ... ...

    Abstract The intrinsic fluorescence of samples confounds the use of fluorescence-based sensors. This is of particular concern in high-throughput screening (HTS) applications using large chemical libraries containing intrinsically fluorescent compounds. To overcome this problem, we developed a bioluminescence resonance energy transfer (BRET) Ca
    MeSH term(s) Energy Transfer ; Fluorescence Resonance Energy Transfer/methods ; High-Throughput Screening Assays ; Humans ; Luminescent Measurements/methods ; Small Molecule Libraries/pharmacology
    Chemical Substances Small Molecule Libraries
    Language English
    Publishing date 2022-08-16
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2417226-1
    ISSN 1937-9145 ; 1945-0877
    ISSN (online) 1937-9145
    ISSN 1945-0877
    DOI 10.1126/scisignal.abq7618
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Time-optimized feeding is beneficial without enforced fasting.

    Kelly, Kevin P / Ellacott, Kate L J / Chen, Heidi / McGuinness, Owen P / Johnson, Carl Hirschie

    Open biology

    2021  Volume 11, Issue 10, Page(s) 210183

    Abstract: Time-restricted feeding (TRF) studies underscore ... ...

    Abstract Time-restricted feeding (TRF) studies underscore that
    MeSH term(s) Animals ; Circadian Clocks ; Circadian Rhythm ; Corticosterone/blood ; Diet, High-Fat/adverse effects ; Energy Metabolism ; Fasting/blood ; Feeding Behavior/physiology ; Lipid Peroxidation ; Male ; Mice ; Obesity/blood ; Obesity/chemically induced ; Obesity/prevention & control
    Chemical Substances Corticosterone (W980KJ009P)
    Language English
    Publishing date 2021-10-06
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2630944-0
    ISSN 2046-2441 ; 2046-2441
    ISSN (online) 2046-2441
    ISSN 2046-2441
    DOI 10.1098/rsob.210183
    Database MEDical Literature Analysis and Retrieval System OnLINE

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