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Conejo-González C, Company-Se G, Muñoz-Ferrer A, Vicente I, Núñez A, Abad J. Sleep-Wake Cycle in a Female Crew During an Earth-Based Martian Analogue Mission. Arch Bronconeumol 2024; 60:649-651. [PMID: 38908945 DOI: 10.1016/j.arbres.2024.05.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/28/2024] [Accepted: 05/31/2024] [Indexed: 06/24/2024]
Affiliation(s)
- Carla Conejo-González
- Executive Officer & Crew Biologist of Hypatia I, Hypatia Mars Association, Barcelona, Spain
| | - Georgina Company-Se
- Northern Metropolitan Territorial Management, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; Department of Electronic Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - Aida Muñoz-Ferrer
- Sleep Medicine Unit, Respiratory Medicine Department, Direcció Clínica de l'Àrea del Tòrax, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Department of Respiratory Medicine, Badalona, Spain.
| | - Ignacio Vicente
- Sleep Medicine Unit, Respiratory Medicine Department, Direcció Clínica de l'Àrea del Tòrax, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Department of Respiratory Medicine, Badalona, Spain
| | - Anna Núñez
- Sleep Medicine Unit, Respiratory Medicine Department, Direcció Clínica de l'Àrea del Tòrax, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Jorge Abad
- Sleep Medicine Unit, Respiratory Medicine Department, Direcció Clínica de l'Àrea del Tòrax, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Department of Respiratory Medicine, Badalona, Spain
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2
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Nguyen T, Ong J, Waisberg E, Lee AG. Sleep and optic disc edema in spaceflight associated neuro-ocular syndrome (SANS). Eye (Lond) 2024; 38:2668-2670. [PMID: 38778142 PMCID: PMC11427688 DOI: 10.1038/s41433-024-03119-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 04/13/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Affiliation(s)
- Tuan Nguyen
- Weill Cornell/Rockefeller/Sloan-Kettering Tri-Institutional MD-PhD Program, New York, NY, USA.
| | - Joshua Ong
- Department of Ophthalmology and Visual Sciences, University of Michigan Kellogg Eye Center, Ann Arbor, MI, USA
| | | | - Andrew G Lee
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
- Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, TX, USA
- The Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, USA
- Departments of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medicine, New York, NY, USA
- Department of Ophthalmology, University of Texas Medical Branch, Galveston, TX, USA
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Texas A&M College of Medicine, Bryan, TX, USA
- Department of Ophthalmology, The University of Iowa Hospitals and Clinics, Iowa City, IA, USA
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3
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Han H, Jia H, Wang YF, Song JP. Cardiovascular adaptations and pathological changes induced by spaceflight: from cellular mechanisms to organ-level impacts. Mil Med Res 2024; 11:68. [PMID: 39334239 PMCID: PMC11429428 DOI: 10.1186/s40779-024-00570-3] [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: 03/04/2024] [Accepted: 09/01/2024] [Indexed: 09/30/2024] Open
Abstract
The advancement in extraterrestrial exploration has highlighted the crucial need for studying how the human cardiovascular system adapts to space conditions. Human development occurs under the influence of gravity, shielded from space radiation by Earth's magnetic field, and within an environment characterized by 24-hour day-night cycles resulting from Earth's rotation, thus deviating from these conditions necessitates adaptive responses for survival. With upcoming manned lunar and Martian missions approaching rapidly, it is essential to understand the impact of various stressors induced by outer-space environments on cardiovascular health. This comprehensive review integrates insights from both actual space missions and simulated experiments on Earth, to analyze how microgravity, space radiation, and disrupted circadian affect cardiovascular well-being. Prolonged exposure to microgravity induces myocardial atrophy and endothelial dysfunction, which may be exacerbated by space radiation. Mitochondrial dysfunction and oxidative stress emerge as key underlying mechanisms along with disturbances in ion channel perturbations, cytoskeletal damage, and myofibril changes. Disruptions in circadian rhythms caused by factors such as microgravity, light exposure, and irregular work schedules, could further exacerbate cardiovascular issues. However, current research tends to predominantly focus on disruptions in the core clock gene, overlooking the multifactorial nature of circadian rhythm disturbances in space. Future space missions should prioritize targeted prevention strategies and early detection methods for identifying cardiovascular risks, to preserve astronaut health and ensure mission success.
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Affiliation(s)
- Han Han
- Beijing Key Laboratory of Preclinical Research and Evaluation for Cardiovascular Implant Materials, Animal Experimental Centre, National Centre for Cardiovascular Disease; Department of Cardiac Surgery, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Hao Jia
- Beijing Key Laboratory of Preclinical Research and Evaluation for Cardiovascular Implant Materials, Animal Experimental Centre, National Centre for Cardiovascular Disease; Department of Cardiac Surgery, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Yi-Fan Wang
- Beijing Key Laboratory of Preclinical Research and Evaluation for Cardiovascular Implant Materials, Animal Experimental Centre, National Centre for Cardiovascular Disease; Department of Cardiac Surgery, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Jiang-Ping Song
- Beijing Key Laboratory of Preclinical Research and Evaluation for Cardiovascular Implant Materials, Animal Experimental Centre, National Centre for Cardiovascular Disease; Department of Cardiac Surgery, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
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4
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McHill AW, Sano A, Barger LK, Phillips AJK, Czeisler CA, Klerman EB. Adaptation of sleep to daylight saving time is slower in people consuming a high-fat diet. iScience 2024; 27:110677. [PMID: 39252974 PMCID: PMC11381764 DOI: 10.1016/j.isci.2024.110677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/22/2024] [Accepted: 08/01/2024] [Indexed: 09/11/2024] Open
Abstract
Adaptation of the circadian clock to the environment is essential for optimal health, well-being, and performance. Animal models demonstrate that a high-fat diet impairs circadian adaptation to advances of the light-dark cycle; it is unknown whether this occurs in humans. Utilizing a natural experiment that occurs when humans must advance their behaviors to an earlier hour for daylight saving time (DST), we measured the influence of diet on sleep/wake timing relative to dim-light melatonin onset time. Students with a lower-fat diet rapidly altered their sleep-wake timing to match the imposed time change, whereas those with a high-fat diet were slower to adapt to the time change. Moreover, a faster shift in timing after DST was associated with higher general health, lower body mass index, and higher grade point average. These data suggest that diet may influence the speed of sleep and circadian adaptation, which could have implications for health and performance.
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Affiliation(s)
- Andrew W McHill
- Sleep, Chronobiology, and Health Laboratory, School of Nursing, Oregon Health & Science University, Portland, OR 97239, USA
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, USA
| | - Akane Sano
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA
- Affective Computing Group, Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Laura K Barger
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Andrew J K Phillips
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
- Flinders Health and Medical Research Institute (Sleep Health), Flinders University, Bedford Park, SA, Australia
| | - Charles A Czeisler
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Elizabeth B Klerman
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA
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5
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Seidler RD, Mao XW, Tays GD, Wang T, Zu Eulenburg P. Effects of spaceflight on the brain. Lancet Neurol 2024; 23:826-835. [PMID: 38945144 DOI: 10.1016/s1474-4422(24)00224-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/06/2024] [Accepted: 05/14/2024] [Indexed: 07/02/2024]
Abstract
The number of long duration human spaceflights has increased substantially over the past 15 years, leading to the discovery of numerous effects on the CNS. Microgravity results in headward fluid shifts, ventricular expansion, an upward shift of the brain within the skull, and remodelling of grey and white matter. The fluid changes are correlated with changes to perivascular space and spaceflight associated neuro-ocular syndrome. Microgravity alters the vestibular processing of head tilt and results in reduced tactile and proprioceptive inputs during spaceflight. Sensory adaptation is reflected in postflight effects, evident as transient sensorimotor impairment. Another major concern is that galactic cosmic radiation, which spacefarers will be exposed to when going beyond the magnetosphere around Earth, might have a negative effect on CNS function. Research with rodents points to the potential disruptive effects of space radiation on blood-brain barrier integrity and brain structures. More work is needed to understand and mitigate these effects on the CNS before humans travel to Mars, as the flight durations will be longer than anyone has previously experienced.
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Affiliation(s)
- Rachael D Seidler
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA; Department of Neurology, University of Florida, Gainesville, FL, USA.
| | - Xiao Wen Mao
- Department of Basic Sciences, Division of Biomedical Engineering Sciences, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Grant D Tays
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
| | - Tianyi Wang
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
| | - Peter Zu Eulenburg
- Institute for Neuroradiology, Ludwig-Maximilians University Munich, Munich, Germany
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6
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Jones CW, Overbey EG, Lacombe J, Ecker AJ, Meydan C, Ryon K, Tierney B, Damle N, MacKay M, Afshin EE, Foox J, Park J, Nelson TM, Suhail Mohamad M, Byhaqui SGA, Aslam B, Tali UA, Nisa L, Menon PV, Patel CO, Khan SA, Ebert DJ, Everson A, Schubert MC, Ali NN, Sarma MS, Kim J, Houerbi N, Grigorev K, Garcia Medina JS, Summers AJ, Gu J, Altin JA, Fattahi A, Hirzallah MI, Wu JH, Stahn AC, Beheshti A, Klotz R, Ortiz V, Yu M, Patras L, Matei I, Lyden D, Melnick A, Banerjee N, Mullane S, Kleinman AS, Loesche M, Menon AS, Donoviel DB, Urquieta E, Mateus J, Sargsyan AE, Shelhamer M, Zenhausern F, Bershad EM, Basner M, Mason CE. Molecular and physiological changes in the SpaceX Inspiration4 civilian crew. Nature 2024; 632:1155-1164. [PMID: 38862026 PMCID: PMC11357997 DOI: 10.1038/s41586-024-07648-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
Human spaceflight has historically been managed by government agencies, such as in the NASA Twins Study1, but new commercial spaceflight opportunities have opened spaceflight to a broader population. In 2021, the SpaceX Inspiration4 mission launched the first all-civilian crew to low Earth orbit, which included the youngest American astronaut (aged 29), new in-flight experimental technologies (handheld ultrasound imaging, smartwatch wearables and immune profiling), ocular alignment measurements and new protocols for in-depth, multi-omic molecular and cellular profiling. Here we report the primary findings from the 3-day spaceflight mission, which induced a broad range of physiological and stress responses, neurovestibular changes indexed by ocular misalignment, and altered neurocognitive functioning, some of which match those of long-term spaceflight2, but almost all of which did not differ from baseline (pre-flight) after return to Earth. Overall, these preliminary civilian spaceflight data suggest that short-duration missions do not pose a significant health risk, and moreover present a rich opportunity to measure the earliest phases of adaptation to spaceflight in the human body at anatomical, cellular, physiological and cognitive levels. Finally, these methods and results lay the foundation for an open, rapidly expanding biomedical database for astronauts3, which can inform countermeasure development for both private and government-sponsored space missions.
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Affiliation(s)
- Christopher W Jones
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Eliah G Overbey
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
- Center for STEM, University of Austin, Austin, TX, USA
| | - Jerome Lacombe
- Center for Applied Nanobioscience and Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
- Department of Basic Medical Sciences, College of Medicine Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Adrian J Ecker
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Cem Meydan
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
| | - Krista Ryon
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
| | - Braden Tierney
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
| | - Namita Damle
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
| | - Matthew MacKay
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
| | - Evan E Afshin
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
| | - Jonathan Foox
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA
| | - Jiwoon Park
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | - Theodore M Nelson
- Department of Microbiology & Immunology, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | | | | | | | | | | | | | | | | | | | | | - Michael C Schubert
- Department of Otolaryngology - Head & Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nabila N Ali
- Department of Otolaryngology - Head & Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mallika S Sarma
- Department of Otolaryngology - Head & Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - JangKeun Kim
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | - Nadia Houerbi
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | - Kirill Grigorev
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | - J Sebastian Garcia Medina
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | - Alexander J Summers
- Center for Applied Nanobioscience and Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Jian Gu
- Center for Applied Nanobioscience and Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
- Department of Basic Medical Sciences, College of Medicine Phoenix, University of Arizona, Phoenix, AZ, USA
| | - John A Altin
- The Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
| | - Ali Fattahi
- Center for Applied Nanobioscience and Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Mohammad I Hirzallah
- Departments of Neurology and Neurosurgery, Baylor College of Medicine, Houston, TX, USA
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Jimmy H Wu
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
- The Translational Research Institute for Space Health (TRISH), Houston, TX, USA
| | - Alexander C Stahn
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Afshin Beheshti
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Blue Marble Space Institute of Science, Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, USA
| | - Remi Klotz
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Veronica Ortiz
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Min Yu
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Laura Patras
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA
- Department of Molecular Biology and Biotechnology, Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Irina Matei
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - David Lyden
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Ari Melnick
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
| | | | | | - Ashley S Kleinman
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | | | - Anil S Menon
- University of Texas, Department of Emergency Medicine, Houston, TX, USA
| | - Dorit B Donoviel
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
- The Translational Research Institute for Space Health (TRISH), Houston, TX, USA
| | - Emmanuel Urquieta
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
- The Translational Research Institute for Space Health (TRISH), Houston, TX, USA
| | | | | | - Mark Shelhamer
- Department of Otolaryngology - Head & Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Frederic Zenhausern
- Center for Applied Nanobioscience and Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
- Department of Basic Medical Sciences, College of Medicine Phoenix, University of Arizona, Phoenix, AZ, USA
- The Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ, USA
| | - Eric M Bershad
- Departments of Neurology and Neurosurgery, Baylor College of Medicine, Houston, TX, USA
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Mathias Basner
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
| | - Christopher E Mason
- Department of Physiology, Biophysics and Medicine, Weill Cornell Medicine, New York, NY, USA.
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA.
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, USA.
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7
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白 亚, 孙 晓, 文 巧, 吴 江, 邹 剑, 王 海. [Effects of Extreme Environments on Human Sleep]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2024; 55:1034-1043. [PMID: 39170010 PMCID: PMC11334294 DOI: 10.12182/20240760402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Indexed: 08/23/2024]
Abstract
Recently, with the rapid growth of the global population and the exhaustion of resources, exploration activities in extreme environments such as the polar regions, the outer space, the deep sea, the deep underground and highlands are becoming increasingly more frequent. This in-depth exploration of the external environment and the consequent dramatic changes in lifestyles impact on sleep, a basic life activity of humans, in ways that cannot be overlooked. the basic life activity of human beings. Sleep, a basic life activity and the result of the evolution of organisms to adapt to their environment, is closely associated with sleep homeostasis and endogenous rhythms. However, external environmental changes and lifestyle shifts in extreme environments have had a significant impact on the patterns and the quality of sleep in humans. Furthermore, this impact can lead to many physiological and psychological problems, posing a great threat to human health. In this review, we delved into the specific effects of different extreme natural environments and enclosed environments on sleep, elaborating on how these environments alter the patterns and the quality of sleep in humans. In addition, we summarized the changes in human sleep under extreme environments to help gain a better understanding of the mechanisms by which these specific environments impact human sleep. It is expected that this review will provide a solid theoretical foundation for optimizing long-term survival strategies in extreme environments and help humans adapt to and overcome the challenges posed by extreme environments more effectively.
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Affiliation(s)
- 亚宁 白
- 四川大学华西医院 耳鼻咽喉头颈外科 (成都 610041)Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - 晓茹 孙
- 四川大学华西医院 耳鼻咽喉头颈外科 (成都 610041)Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- 四川大学深地医学中心 (成都 610041)Deep Under Ground Medical Center, Sichuan University, Chengdu 610041, China
| | - 巧 文
- 四川大学华西医院 耳鼻咽喉头颈外科 (成都 610041)Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- 四川大学深地医学中心 (成都 610041)Deep Under Ground Medical Center, Sichuan University, Chengdu 610041, China
| | - 江 吴
- 四川大学华西医院 耳鼻咽喉头颈外科 (成都 610041)Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- 四川大学深地医学中心 (成都 610041)Deep Under Ground Medical Center, Sichuan University, Chengdu 610041, China
| | - 剑 邹
- 四川大学华西医院 耳鼻咽喉头颈外科 (成都 610041)Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- 四川大学深地医学中心 (成都 610041)Deep Under Ground Medical Center, Sichuan University, Chengdu 610041, China
| | - 海洋 王
- 四川大学华西医院 耳鼻咽喉头颈外科 (成都 610041)Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- 四川大学深地医学中心 (成都 610041)Deep Under Ground Medical Center, Sichuan University, Chengdu 610041, China
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8
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Rutter LA, Cope H, MacKay MJ, Herranz R, Das S, Ponomarev SA, Costes SV, Paul AM, Barker R, Taylor DM, Bezdan D, Szewczyk NJ, Muratani M, Mason CE, Giacomello S. Astronaut omics and the impact of space on the human body at scale. Nat Commun 2024; 15:4952. [PMID: 38862505 PMCID: PMC11166943 DOI: 10.1038/s41467-024-47237-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 03/22/2024] [Indexed: 06/13/2024] Open
Abstract
Future multi-year crewed planetary missions will motivate advances in aerospace nutrition and telehealth. On Earth, the Human Cell Atlas project aims to spatially map all cell types in the human body. Here, we propose that a parallel Human Cell Space Atlas could serve as an openly available, global resource for space life science research. As humanity becomes increasingly spacefaring, high-resolution omics on orbit could permit an advent of precision spaceflight healthcare. Alongside the scientific potential, we consider the complex ethical, cultural, and legal challenges intrinsic to the human space omics discipline, and how philosophical frameworks may benefit from international perspectives.
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Affiliation(s)
- Lindsay A Rutter
- Transborder Medical Research Center, University of Tsukuba, 305-8575, Tsukuba, Japan
- Department of Genome Biology, Institute of Medicine, University of Tsukuba, 305-8575, Tsukuba, Japan
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Henry Cope
- School of Medicine, University of Nottingham, Derby, DE22 3DT, UK
| | - Matthew J MacKay
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, 10065, USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, 10021, USA
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Raúl Herranz
- Centro de Investigaciones Biológicas "Margarita Salas" (CSIC), Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Saswati Das
- Department of Biochemistry, Atal Bihari Vajpayee Institute of Medical Sciences & Dr. Ram Manohar Lohia Hospital, New Delhi, 110001, India
| | - Sergey A Ponomarev
- Department of Immunology and Microbiology, Institute for the Biomedical Problems, Russian Academy of Sciences, 123007, Moscow, Russia
| | - Sylvain V Costes
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, 94035, USA
| | - Amber M Paul
- Embry-Riddle Aeronautical University, Department of Human Factors and Behavioral Neurobiology, Daytona Beach, FL, 32114, USA
| | - Richard Barker
- Department of Botany, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Deanne M Taylor
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Daniela Bezdan
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, 72076, Germany
- NGS Competence Center Tübingen (NCCT), University of Tübingen, Tübingen, 72076, Germany
- yuri GmbH, Meckenbeuren, 88074, Germany
| | - Nathaniel J Szewczyk
- School of Medicine, University of Nottingham, Derby, DE22 3DT, UK
- Ohio Musculoskeletal and Neurological Institute (OMNI), Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, 45701, USA
| | - Masafumi Muratani
- Transborder Medical Research Center, University of Tsukuba, 305-8575, Tsukuba, Japan
- Department of Genome Biology, Institute of Medicine, University of Tsukuba, 305-8575, Tsukuba, Japan
| | - Christopher E Mason
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, 10065, USA.
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, 10021, USA.
- The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY, 10065, USA.
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10065, USA.
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9
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Seylani A, Galsinh AS, Tasoula A, I AR, Camera A, Calleja-Agius J, Borg J, Goel C, Kim J, Clark KB, Das S, Arif S, Boerrigter M, Coffey C, Szewczyk N, Mason CE, Manoli M, Karouia F, Schwertz H, Beheshti A, Tulodziecki D. Ethical considerations for the age of non-governmental space exploration. Nat Commun 2024; 15:4774. [PMID: 38862473 PMCID: PMC11166968 DOI: 10.1038/s41467-023-44357-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 12/05/2023] [Indexed: 06/13/2024] Open
Abstract
Mounting ambitions and capabilities for public and private, non-government sector crewed space exploration bring with them an increasingly diverse set of space travelers, raising new and nontrivial ethical, legal, and medical policy and practice concerns which are still relatively underexplored. In this piece, we lay out several pressing issues related to ethical considerations for selecting space travelers and conducting human subject research on them, especially in the context of non-governmental and commercial/private space operations.
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Affiliation(s)
- Allen Seylani
- School of Medicine, University of California, Riverside. 92521 Botanical Garden Dr, Riverside, CA, 92507, USA
| | - Aman Singh Galsinh
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, AB24 3FX, UK
| | - Alexia Tasoula
- Department of Life Science Engineering, FH Technikum, Vienna, Austria
- Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Anu R I
- Department of Cancer Biology and Therapeutics, MVR Cancer Centre and Research Institute, Calicut, India
- Department of Clinical Biochemistry, MVR Cancer Centre and Research Institute, Calicut, India
| | - Andrea Camera
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Jean Calleja-Agius
- Department of Anatomy, Faculty of Medicine and Surgery, University of Malta, MSD2080, Msida, Malta
| | - Joseph Borg
- Department of Applied Biomedical Science, Faculty of Health Sciences, University of Malta, MSD2080, Msida, Malta
| | - Chirag Goel
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - JangKeun Kim
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Kevin B Clark
- Cures Within Reach, Chicago, IL, 60602, USA
- Peace Innovation Institute, The Hague 2511, Netherlands & Stanford University, Palo Alto, CA, 94305, USA
- Biometrics and Nanotechnology Councils, Institute for Electrical and Electronics Engineers, New York, NY, 10016-5997, USA
| | - Saswati Das
- Department of Biochemistry, Atal Bihari Vajpayee Institute of Medical Sciences, New Delhi, India
| | - Shehbeel Arif
- Center for Data-Driven Discovery in Biomedicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Caroline Coffey
- Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Nathaniel Szewczyk
- Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Christopher E Mason
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Maria Manoli
- School of Law, University of Aberdeen, Aberdeen, AB24 3UB, UK
| | - Fathi Karouia
- Blue Marble Space Institute for Science, Exobiology Branch, NASA Ames Research Center, Moffett Field, CA, USA
- Space Research Within Reach, San Francisco, CA, USA
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Hansjörg Schwertz
- Molecular Medicine Program at the University of Utah, Salt Lake City, UT, 84112, USA.
- Division of Occupational Medicine at the University of Utah, Salt Lake City, UT, 84112, USA.
- Occupational Medicine at Billings Clinic Bozeman, Bozeman, MT, 59715, USA.
| | - Afshin Beheshti
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Blue Marble Space Institute of Science, Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, US.
| | - Dana Tulodziecki
- Department of Philosophy, Purdue University, West Lafayette, IN, USA.
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10
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van Oosterhout WPJ, Perenboom MJL, Terwindt GM, Ferrari MD, Vein AA. Frequency and Clinical Features of Space Headache Experienced by Astronauts During Long-Haul Space Flights. Neurology 2024; 102:e209224. [PMID: 38478846 PMCID: PMC11033988 DOI: 10.1212/wnl.0000000000209224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 12/23/2023] [Indexed: 04/24/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Few anecdotal cases and 1 small retrospective study during short-duration space missions suggest that headache may occur early in flight, as part of the space motion syndrome. Whether headaches may also occur at later stages of space flights is unknown. We aimed to prospectively characterize the incidence, timing, clinical features, and management of space headaches during long-duration flights. METHODS We prospectively evaluated the occurrence, characteristics, and evolution of space headaches and the effects of treatment and countermeasures during long-haul flights with onboard questionnaires and correlated them with prevailing temperature, pressure, and ambient O2 and CO2 levels, measured within the International Space Station. In addition, we analyzed retrospective headache data from a different astronaut cohort. Headache data were reported using descriptive statistics and correlation data with intraindividual logistic regression models. Astronauts were included through (inter)national aerospace organizations. RESULTS In the prospective study, 22/24 (91.7%) astronauts (mean ± SD age: 46.6 ± 6.5 years, 95.8% male) experienced ≥1 episode of headache during a total of 3,596 space days. A total of 378 episodes were reported (median 9; range 1-128) with detailed information on 189. Phenotypically, 170/189 (89.9%) episodes were tension-type headache (TTH) and 19/189 (10.1%) were migraine. Episodes in the first week differed from those in later periods in terms of phenotype (migraine 12/51 [23.5%] vs 7/138 [5.1%]; TTH 39/51 [86.5%] vs 131/138 [94.9%]; overall p = 0.0002) and accompanying symptoms: nausea: 17.6% vs 6.9%, p = 0.05; vomiting: 9.8% vs 0.7%, p = 0.005; nasal congestion: 52.9% vs 29.7%, p = 0.004; facial edema: 41.2% vs 1.4%, p < 0.001; and duration (p = 0.001). Severity and treatments were similar: acute antiheadache medication: 55.6%; other medication: 22.4%; and alternative treatments: 41.1%. Headache occurrence was not associated with temperature or ambient pressure/levels of O2 and CO2 (all p > 0.05). In the retrospective study, 23/42 (54.8%) astronauts (43.5 ± 7.2 years, 90.5% male) reported experiencing ≥1 headache episode during mission. Nasal congestion was the most common (8/33; 24.2%) accompanying symptom. Seventeen of 42 astronauts have been previously described. DISCUSSION Astronauts during space flights frequently experience headaches. These most often have characteristics of TTHs but sometimes have migrainous features, particularly during the first week of flight in astronauts without a history of recurrent headaches before or after the space flight.
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Affiliation(s)
- Willebrordus P J van Oosterhout
- From the Department of Neurology (W.P.J.v.O., M.J.L.P., G.M.T., M.D.F., A.A.V.), Leiden University Medical Center; and Department of Neurology (W.P.J.v.O.), Zaans Medical Center, Zaandam, the Netherlands
| | - Matthijs J L Perenboom
- From the Department of Neurology (W.P.J.v.O., M.J.L.P., G.M.T., M.D.F., A.A.V.), Leiden University Medical Center; and Department of Neurology (W.P.J.v.O.), Zaans Medical Center, Zaandam, the Netherlands
| | - Gisela M Terwindt
- From the Department of Neurology (W.P.J.v.O., M.J.L.P., G.M.T., M.D.F., A.A.V.), Leiden University Medical Center; and Department of Neurology (W.P.J.v.O.), Zaans Medical Center, Zaandam, the Netherlands
| | - Michel D Ferrari
- From the Department of Neurology (W.P.J.v.O., M.J.L.P., G.M.T., M.D.F., A.A.V.), Leiden University Medical Center; and Department of Neurology (W.P.J.v.O.), Zaans Medical Center, Zaandam, the Netherlands
| | - Alla A Vein
- From the Department of Neurology (W.P.J.v.O., M.J.L.P., G.M.T., M.D.F., A.A.V.), Leiden University Medical Center; and Department of Neurology (W.P.J.v.O.), Zaans Medical Center, Zaandam, the Netherlands
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11
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Marmis R, McGoldrick-Ruth L, Kelly MR, Haynes PL. Comparing actigraphy and diary to measure daily and average sleep in firefighters: a Bland-Altman analysis. J Clin Sleep Med 2024; 20:497-503. [PMID: 37950454 PMCID: PMC10985296 DOI: 10.5664/jcsm.10916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/12/2023]
Abstract
STUDY OBJECTIVES This study sought to examine the relationship between actigraphy and the Consensus Sleep Diary to contribute information on their concurrent validity in a sample of career firefighters. METHODS Sixty firefighters were recruited from a large, urban fire department in the southwest United States that utilizes a fire-based emergency medical services system and a 5/6 shift schedule. A total of 329 differences were recorded during participants' 6-day between-shift recovery period. Data was collected utilizing the two most common forms of sleep analysis in an outpatient setting, wrist actigraphy (Actiwatch-2) and the Consensus Sleep Diary. Nine major sleep indices were computed: wake time after sleep onset, total sleep time, sleep onset latency, sleep offset, in-bed time, lights-off time, out-of-bed time, wake time, and sleep efficiency. RESULTS Firefighters overestimated sleep efficiency and underestimated wake after sleep onset by values that were greater than the American Academy of Sleep Medicine a priori clinical significance thresholds. All indices showed very broad limits of agreement. For example, the 95% confidence interval for diary and actigraphic total sleep time estimates fell within a 4.7-hour range. CONCLUSIONS Firefighters receiving recovery sleep between tours demonstrated significantly large disagreements between their daily self-reported sleep and measured actigraphic sleep. Sleep findings from actigraphic and Consensus Sleep Diary sleep assessments in this population should be interpreted cautiously until each method is compared against other reliable sleep analysis methods. Currently it is unclear if clinicians are using properly validated tools when diagnosing shift work disorder or other sleep disorders in firefighters. CITATION Marmis R, McGoldrick-Ruth L, Kelly MR, Haynes PL. Comparing actigraphy and diary to measure daily and average sleep in firefighters: a Bland-Altman analysis. J Clin Sleep Med. 2024;20(4):497-503.
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Affiliation(s)
- Ryan Marmis
- Department of Physiology, University of Arizona, Tucson, Arizona
| | | | - Monica R. Kelly
- Department of Psychology, University of Arizona, Tucson, Arizona
- Geriatric Research, Education and Clinical Center, VA Greater Los Angeles Healthcare System, Los Angeles, California
- Department of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Patricia L. Haynes
- Department of Health Promotion Sciences, University of Arizona, Tucson, Arizona
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12
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Christian KH, Petitti C, Oretga-Schwartz K, Mulder E, Noppe A, von der Wiesche M, Stern C, Young M, Macias BR, Laurie SS, Lovering AT. Development of optic disc edema during 30 days of hypercapnic head-down tilt bed rest is associated with short sleep duration and blunted temperature amplitude. J Appl Physiol (1985) 2024; 136:753-763. [PMID: 38357726 DOI: 10.1152/japplphysiol.00211.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/16/2024] Open
Abstract
Sleep and circadian temperature disturbances occur with spaceflight and may, in part, result from the chronically elevated carbon dioxide (CO2) levels on the international space station. Impaired sleep may contribute to decreased glymphatic clearance and, when combined with the chronic headward fluid shift during actual spaceflight or the spaceflight analog head-down tilt bed rest (HDTBR), may contribute to the development of optic disc edema. We determined if strict HDTBR combined with mildly elevated CO2 levels influenced sleep and core temperature and was associated with the development of optic disc edema. Healthy participants (5 females) aged 25-50 yr, underwent 30 days of strict 6° HDTBR with ambient Pco2 = 4 mmHg. Measures of sleep, 24-h core temperature, overnight transcutaneous CO2, and Frisén grade edema were made pre-HDTBR, on HDTBR days 4, 17, 28, and post-HDTBR days 4 and 10. During all HDTBR time points, sleep, core temperature, and overnight transcutaneous CO2 were not different than the pre-HDTBR measurements. However, independent of the HDTBR intervention, the odds ratios {mean [95% confidence interval (CI)]} for developing Frisén grade optic disc edema were statistically significant for each hour below the mean total sleep time (2.2 [1.1-4.4]) and stage 2 nonrapid eye movement (NREM) sleep (4.8 [1.3-18.6]), and above the mean for wake after sleep onset (3.6 [1.2-10.6]) and for each 0.1°C decrease in core temperature amplitude below the mean (4.0 [1.4-11.7]). These data suggest that optic disc edema occurring during HDTBR was more likely to occur in those with short sleep duration and/or blunted temperature amplitude.NEW & NOTEWORTHY We determined that sleep and 24-h core body temperature were unaltered by 30 days exposure to the spaceflight analog strict 6° head-down tilt bed rest (HDTBR) in a 0.5% CO2 environment. However, shorter sleep duration, greater wake after sleep onset, and lower core temperature amplitude present throughout the study were associated with the development of optic disc edema, a key finding of spaceflight-associated neuro-ocular syndrome.
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Affiliation(s)
- Kate H Christian
- Department of Human Physiology, University of Oregon, Eugene, Oregon, United States
| | - Carla Petitti
- PeaceHealth Sleep Disorders Center, Springfield, Oregon, United States
| | - Kyra Oretga-Schwartz
- Department of Human Physiology, University of Oregon, Eugene, Oregon, United States
| | - Edwin Mulder
- German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | - Alexandra Noppe
- German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | | | - Claudia Stern
- German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | | | | | | | - Andrew T Lovering
- Department of Human Physiology, University of Oregon, Eugene, Oregon, United States
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Archer SN, Möller-Levet C, Bonmatí-Carrión MÁ, Laing EE, Dijk DJ. Extensive dynamic changes in the human transcriptome and its circadian organization during prolonged bed rest. iScience 2024; 27:109331. [PMID: 38487016 PMCID: PMC10937834 DOI: 10.1016/j.isci.2024.109331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/11/2023] [Accepted: 02/20/2024] [Indexed: 03/17/2024] Open
Abstract
Physiological and molecular processes including the transcriptome change across the 24-h day, driven by molecular circadian clocks and behavioral and systemic factors. It is not known how the temporal organization of the human transcriptome responds to a long-lasting challenge. This may, however, provide insights into adaptation, disease, and recovery. We investigated the human 24-h time series transcriptome in 20 individuals during a 90-day constant bed rest protocol. We show that the protocol affected 91% of the transcriptome with 76% of the transcriptome still affected after 10 days of recovery. Dimensionality-reduction approaches revealed that many affected transcripts were associated with mRNA translation and immune function. The number, amplitude, and phase of rhythmic transcripts, including clock genes, varied significantly across the challenge. These findings of long-lasting changes in the temporal organization of the transcriptome have implications for understanding the mechanisms underlying health consequences of conditions such as microgravity and bed rest.
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Affiliation(s)
- Simon N. Archer
- Surrey Sleep Research Centre, Faculty of Health & Medical Sciences, University of Surrey, Guildford, UK
| | - Carla Möller-Levet
- Bioinformatics Core Facility, Faculty of Health & Medical Sciences, University of Surrey, Guildford, UK
| | - María-Ángeles Bonmatí-Carrión
- Surrey Sleep Research Centre, Faculty of Health & Medical Sciences, University of Surrey, Guildford, UK
- Chronobiology Laboratory, Department of Physiology, University of Murcia, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Emma E. Laing
- Department of Microbiology, Faculty of Health & Medical Sciences, University of Surrey, Guildford, UK
| | - Derk-Jan Dijk
- Surrey Sleep Research Centre, Faculty of Health & Medical Sciences, University of Surrey, Guildford, UK
- UK Dementia Research Institute Care Research & Technology Centre, Imperial College London & University of Surrey, Guildford, UK
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14
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Richmond SB, Seidler RD, Iliff JJ, Schwartz DL, Luther M, Silbert LC, Wood SJ, Bloomberg JJ, Mulder E, Lee JK, De Luca A, Piantino J. Dynamic changes in perivascular space morphology predict signs of spaceflight-associated neuro-ocular syndrome in bed rest. NPJ Microgravity 2024; 10:24. [PMID: 38429289 PMCID: PMC10907584 DOI: 10.1038/s41526-024-00368-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 02/15/2024] [Indexed: 03/03/2024] Open
Abstract
During long-duration spaceflight, astronauts experience headward fluid shifts and expansion of the cerebral perivascular spaces (PVS). A major limitation to our understanding of the changes in brain structure and physiology induced by spaceflight stems from the logistical difficulties of studying astronauts. The current study aimed to determine whether PVS changes also occur on Earth with the spaceflight analog head-down tilt bed rest (HDBR). We examined how the number and morphology of magnetic resonance imaging-visible PVS (MV-PVS) are affected by HDBR with and without elevated carbon dioxide (CO2). These environments mimic the headward fluid shifts, body unloading, and elevated CO2 observed aboard the International Space Station. Additionally, we sought to understand how changes in MV-PVS are associated with signs of Spaceflight Associated Neuro-ocular Syndrome (SANS), ocular structural alterations that can occur with spaceflight. Participants were separated into two bed rest campaigns: HDBR (60 days) and HDBR + CO2 (30 days with elevated ambient CO2). Both groups completed multiple magnetic resonance image acquisitions before, during, and post-bed rest. We found that at the group level, neither spaceflight analog affected MV-PVS quantity or morphology. However, when taking into account SANS status, persons exhibiting signs of SANS showed little or no MV-PVS changes, whereas their No-SANS counterparts showed MV-PVS morphological changes during the HDBR + CO2 campaign. These findings highlight spaceflight analogs as models for inducing changes in MV-PVS and implicate MV-PVS dynamic compliance as a mechanism underlying SANS. These findings may lead to countermeasures to mitigate health risks associated with human spaceflight.
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Affiliation(s)
- Sutton B Richmond
- Department of Applied Physiology and Kinesiology, University of Florida, 1864, Stadium Rd., Gainesville, FL, USA
| | - Rachael D Seidler
- Department of Applied Physiology and Kinesiology, University of Florida, 1864, Stadium Rd., Gainesville, FL, USA
- Norman Fixel Institute for Neurological Diseases, University of Florida, Gainesville, FL, USA
| | - Jeffrey J Iliff
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
- Department of Neurology, University of Washington School of Medicine, Seattle, WA, USA
- VISN 20 Mental Illness Research, Education and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
| | - Daniel L Schwartz
- Layton-NIA Oregon Aging and Alzheimer's Disease Research Center, Department of Neurology, Oregon Health & Science University, Portland, OR, USA
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - Madison Luther
- Department of Pediatrics, Division of Child Neurology, Doernbecher Children's Hospital, Oregon Health and Science University, Portland, OR, USA
| | - Lisa C Silbert
- Layton-NIA Oregon Aging and Alzheimer's Disease Research Center, Department of Neurology, Oregon Health & Science University, Portland, OR, USA
- Veteran's Affairs Portland Health Care System, Neurology, Portland, OR, USA
| | | | | | | | - Jessica K Lee
- Department of Applied Physiology and Kinesiology, University of Florida, 1864, Stadium Rd., Gainesville, FL, USA
- German Aerospace Center (DLR), Cologne, Germany
| | - Alberto De Luca
- Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Juan Piantino
- Department of Pediatrics, Division of Child Neurology, Doernbecher Children's Hospital, Oregon Health and Science University, Portland, OR, USA.
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15
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Piechowski S, Kalkoffen LJ, Benderoth S, Wolf OT, Rittweger J, Aeschbach D, Mühl C. Effects of total sleep deprivation on performance in a manual spacecraft docking task. NPJ Microgravity 2024; 10:21. [PMID: 38383574 PMCID: PMC10881462 DOI: 10.1038/s41526-024-00361-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 02/01/2024] [Indexed: 02/23/2024] Open
Abstract
Sleep deprivation and circadian rhythm disruptions are highly prevalent in shift workers, and also among astronauts. Resulting sleepiness can reduce cognitive performance, lead to catastrophic occupational events, and jeopardize space missions. We investigated whether 24 hours of total sleep deprivation would affect performance not only in the Psychomotor Vigilance Task (PVT), but also in a complex operational task, i.e. simulated manual spacecraft docking. Sixty-two healthy participants completed the manual docking simulation 6df and the PVT once after a night of total sleep deprivation and once after eight hours of scheduled sleep in a counterbalanced order. We assessed the impact of sleep deprivation on docking as well as PVT performance and investigated if sustained attention is an essential component of operational performance after sleep loss. The results showed that docking accuracy decreased significantly after sleep deprivation in comparison to the control condition, but only at difficult task levels. PVT performance deteriorated under sleep deprivation. Participants with larger impairments in PVT response speed after sleep deprivation also showed larger impairments in docking accuracy. In conclusion, sleep deprivation led to impaired 6df performance, which was partly explained by impairments in sustained attention. Elevated motivation levels due to the novelty and attractiveness of the task may have helped participants to compensate for the effects of sleepiness at easier task levels. Continued testing of manual docking skills could be a useful tool both to detect sleep loss-related impairments and assess astronauts' readiness for duty during long-duration missions.
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Affiliation(s)
- Sarah Piechowski
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.
| | - Lennard J Kalkoffen
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Sibylle Benderoth
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Oliver T Wolf
- Department of Cognitive Psychology, Faculty of Psychology, Ruhr University Bochum, Bochum, Germany
| | - Jörn Rittweger
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Department of Pediatrics and Adolescent Medicine, University Hospital Cologne, Cologne, Germany
| | - Daniel Aeschbach
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Institute of Experimental Epileptology and Cognition Research, University of Bonn Medical Center, 53127, Bonn, Germany
| | - Christian Mühl
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
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Jiang N, Zhang Y, Yao C, Chen F, Liu Y, Chen Y, Wang Y, Choudhary MI, Liu X. Hemerocallis citrina Baroni ameliorates chronic sleep deprivation-induced cognitive deficits and depressive-like behaviours in mice. LIFE SCIENCES IN SPACE RESEARCH 2024; 40:35-43. [PMID: 38245346 DOI: 10.1016/j.lssr.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/27/2023] [Accepted: 04/05/2023] [Indexed: 01/22/2024]
Abstract
Sleep deprivation (SD) is common during spaceflight. SD is known to cause cognitive deficits and depression, requiring treatment and prevention. Hemerocallis citrina Baroni (Liliaceae) is a perennial herb with antidepressant, antioxidant, antitumor, anti-inflammatory, and neuroprotective effects.The aim of our study was to investigate the effects of H. citrina extract (HCE) on SD-induced cognitive decline and depression-like behavior and possible neuroinflammation-related mechanisms. HCE (2 g/kg/day, i.g.) or vortioxetine (10 mg/kg/day, i.g.) were given to mice by oral gavage for a total of 28 days during the SD process. HCE treatment was found to ameliorate SD-induced impairment of short- and long-term spatial and nonspatial memory, measured using Y-maze, object recognition, and Morris water maze tests, as well as mitigating SD-induced depression-like behaviors, measured by tail suspension and forced swimming tests. HCE also reduced the levels of inflammatory cytokines (IL-1β, IL-18, and IL-6) in the serum and hippocampus. Furthermore, HCE suppressed SD-induced microglial activation in the prefrontal cortex (PFC) and the CA1 and dentate gyrus (DG) regions of the hippocampus. HCE also inhibited the expression of phosphorylated NF-κB and activation of the NLRP3 inflammasome. In summary, our findings indicated that HCE attenuated SD-induced cognitive impairment and depression-like behavior and that this effect may be mediated by the inhibition of inflammatory progression and microglial activation in the hippocampus, as well as the down-regulation of NF-κB and NLRP3 signaling. The findings of these studies showingTthese results indicate that HCE exerts neuroprotective effects and are consistent with the findings of previous studies, suggesting that HCE is beneficial for the prevention and treatment of cognitive decline and depression in SD.
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Affiliation(s)
- Ning Jiang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Yiwen Zhang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Caihong Yao
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Fang Chen
- Hunan University of Chinese Medicine, Hunan 410000, China
| | - Yupei Liu
- Hunan University of Chinese Medicine, Hunan 410000, China
| | - Yuzhen Chen
- Hunan University of Chinese Medicine, Hunan 410000, China
| | - Yan Wang
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Iqbal Choudhary
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Xinmin Liu
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; Hunan University of Chinese Medicine, Hunan 410000, China.
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17
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Zhang C, Chen Y, Fan Z, Xin B, Wu B, Lv K. Sleep-Monitoring Technology Progress and Its Application in Space. Aerosp Med Hum Perform 2024; 95:37-44. [PMID: 38158578 DOI: 10.3357/amhp.6249.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
INTRODUCTION: Sleep is an indispensable physiological phenomenon. The complexity of sleep and the time it occupies in human life determine that its quality is positively correlated with human health. Since polysomnography was used in spaceflight in 1967, the sleep problem during astronaut flight has been studied in depth for more than 50 yr, and many solutions have been proposed, but astronauts have always had sleep problems during orbital flight. Insufficient sleep and changes in the rhythm of human sleep-wake activity will lead to disturbance of the human body's internal rhythm indicators, which will lead to psychological and emotional fluctuations and reduced cognitive ability, decision-making ability, teamwork, and work performance. NASA has identified operational errors due to sleep deprivation and altered circadian rhythms as an important risk factor in the key biomedical roadmap for long-term flight, so the importance of sleep monitoring in spaceflight is self-evident. On-orbit sleep-monitoring methods include both subjective and objective aspects. We review objective sleep-monitoring technology based on its application, main monitoring physiological indicators, intrusive advantages, and limitations. This paper reviews the subjective and objective sleep evaluation methods for on-orbit applications, summarizes the progress, advantages, and disadvantages of current ground sleep-monitoring technologies and equipment, and looks forward to the application prospects of new sleep-monitoring technologies in spaceflight.Zhang C, Chen Y, Fan Z, Xin B, Wu B, Lv K. Sleep-monitoring technology progress and its application in space. Aerosp Med Hum Perform. 2024; 95(1):37-44.
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Flynn-Evans EE, Rueger M, Liu AM, Galvan-Garza RC, Natapoff A, Oman CM, Lockley SW. Effectiveness of caffeine and blue-enriched light on cognitive performance and electroencephalography correlates of alertness in a spaceflight robotics simulation. NPJ Microgravity 2023; 9:93. [PMID: 38114500 PMCID: PMC10730879 DOI: 10.1038/s41526-023-00332-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 10/25/2023] [Indexed: 12/21/2023] Open
Abstract
Human cognitive impairment associated with sleep loss, circadian misalignment and work overload is a major concern in any high stress occupation but has potentially catastrophic consequences during spaceflight human robotic interactions. Two safe, wake-promoting countermeasures, caffeine and blue-enriched white light have been studied on Earth and are available on the International Space Station. We therefore conducted a randomized, placebo-controlled, cross-over trial examining the impact of regularly timed low-dose caffeine (0.3 mg per kg per h) and moderate illuminance blue-enriched white light (~90 lux, ~88 melEDI lux, 6300 K) as countermeasures, separately and combined, in a multi-night simulation of sleep-wake shifts experienced during spaceflight among 16 participants (7 F, ages 26-55). We find that chronic administration of low-dose caffeine improves subjective and objective correlates of alertness and performance during an overnight work schedule involving chronic sleep loss and circadian misalignment, although we also find that caffeine disrupts subsequent sleep. We further find that 90 lux of blue-enriched light moderately reduces electroencephalogram (EEG) power in the theta and delta regions, which are associated with sleepiness. These findings support the use of low-dose caffeine and potentially blue-enriched white light to enhance alertness and performance among astronauts and shiftworking populations.
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Affiliation(s)
- Erin E Flynn-Evans
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, 02115, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, 02115, Boston, MA, USA
- Fatigue Countermeasures Laboratory, Human Systems Integration Division, NASA Ames Research Center, Moffett Field, CA, 94035, USA
| | - Melanie Rueger
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, 02115, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, 02115, Boston, MA, USA
| | - Andrew M Liu
- Human Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Raquel C Galvan-Garza
- Human Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Alan Natapoff
- Human Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Charles M Oman
- Human Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Steven W Lockley
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, 02115, Boston, MA, USA.
- Division of Sleep Medicine, Harvard Medical School, 02115, Boston, MA, USA.
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19
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Albornoz-Miranda M, Parrao D, Taverne M. Sleep disruption, use of sleep-promoting medication and circadian desynchronization in spaceflight crewmembers: Evidence in low-Earth orbit and concerns for future deep-space exploration missions. Sleep Med X 2023; 6:100080. [PMID: 37533816 PMCID: PMC10391686 DOI: 10.1016/j.sleepx.2023.100080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/08/2023] [Accepted: 07/02/2023] [Indexed: 08/04/2023] Open
Abstract
Introduction The spaceflight environment presents unique demands on human physiology; among those demands, is sleep. Sleep loss and circadian desynchronization is a major concern for future deep- exploration plans, including long-term crewed missions to the Moon and Mars. Aims Analyze evidence of sleep disruption in crewmembers during low-Earth orbit missions, identify the use of sleep-promoting medication among crewmembers and deepen the comprehension of challenges to sleep physiology for future missions to the Moon and Mars. Results Evidence consistently indicates a loss of sleep and circadian rhythm disruption during low-Earth orbit missions. Sleep duration is shortened especially the night before a critical operation and during circadian-misaligned sleep episodes. The prevalence of sleep-promoting medication ranges between 71% and 78%; medication is more frequently taken on circadian-misaligned sleep episodes. Regarding the Moon, Apollo astronauts had variable sleep duration. For some, sleep was restful while others had poor-quality sleep. Many reported fatigue and errors due to the lack of rest. A loss of the 24-h light/dark might be expected due to the Moon's complex illumination characteristics. Regarding Mars, one main challenge will consist in synchronizing the circadian clock to a Martian day (24.65 h).
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Affiliation(s)
| | - Diego Parrao
- School of Medicine, University of O'Higgins, Avenida Libertador Bernardo O'Higgins 611, Rancagua, Chile
| | - Maximiliano Taverne
- Faculty of Physical and Mathematical Sciences, University of Chile, Beauchef 850, Santiago, Chile
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20
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Divya Harika P, Mehta KH, Pulluri SS, Rana P, Rajani H, Aiman A. Oral Health in Zero Gravity: A Comprehensive Review of Orofacial Effects and Countermeasures in Spaceflights. Cureus 2023; 15:e49035. [PMID: 38116347 PMCID: PMC10728690 DOI: 10.7759/cureus.49035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2023] [Indexed: 12/21/2023] Open
Abstract
Space is a complex and challenging setting encompassing the region beyond Earth's atmosphere where astronauts and spacecraft operate. The unique conditions of spaceflights, particularly microgravity and radiation, pose significant challenges to astronaut health, including the orofacial region. It has effects on saliva production, microbial composition, and oral hygiene practices, which influence oral health status, such as increased risk of dental caries, gum diseases, oral discomfort, temporomandibular joint dysfunctions, sialoliths, pain and dysesthesia in the teeth and oral mucosa, masticatory muscle atrophy, and oral cancer which can be detrimental during prolonged missions. Hence, a comprehensive approach to dental care in space is imperative to ensure astronauts' well-being and overall health as we strive to extend our presence beyond Earth. This literature review paper sheds light on the intricate effects of space on the orofacial region and delves into the unique challenges astronauts face in upholding optimal oral health while in space. It explores the current state of dentistry in space and discusses advancements and strategies that aim to maintain optimal oral health for astronauts during extended space missions.
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Affiliation(s)
- Pedada Divya Harika
- Oral Medicine and Radiology, Panineeya Institute of Dental Sciences & Research Centre, Hyderabad, IND
| | - Karan Hiral Mehta
- Oral Medicine and Radiology, Government Dental College Kadapa, Kadapa, IND
| | | | - Priyanka Rana
- Oral Medicine and Radiology, Postgraduate Institute of Medical Education and Research, Chandigarh, IND
| | - Hanmandla Rajani
- Oral Medicine and Radiology, Panineeya Institute of Dental Sciences & Research Centre, Hyderabad, IND
| | - Ayesha Aiman
- Oral Medicine and Radiology, Panineeya Institute of Dental Sciences & Research Centre, Hyderabad, IND
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21
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Robin A, Van Ombergen A, Laurens C, Bergouignan A, Vico L, Linossier MT, Pavy-Le Traon A, Kermorgant M, Chopard A, Py G, Green DA, Tipton M, Choukér A, Denise P, Normand H, Blanc S, Simon C, Rosnet E, Larcher F, Fernandez P, de Glisezinski I, Larrouy D, Harant-Farrugia I, Antunes I, Gauquelin-Koch G, Bareille MP, Billette De Villemeur R, Custaud MA, Navasiolava N. Comprehensive assessment of physiological responses in women during the ESA dry immersion VIVALDI microgravity simulation. Nat Commun 2023; 14:6311. [PMID: 37813884 PMCID: PMC10562467 DOI: 10.1038/s41467-023-41990-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/26/2023] [Indexed: 10/11/2023] Open
Abstract
Astronauts in microgravity experience multi-system deconditioning, impacting their inflight efficiency and inducing dysfunctions upon return to Earth gravity. To fill the sex gap of knowledge in the health impact of spaceflights, we simulate microgravity with a 5-day dry immersion in 18 healthy women (ClinicalTrials.gov Identifier: NCT05043974). Here we show that dry immersion rapidly induces a sedentarily-like metabolism shift mimicking the beginning of a metabolic syndrome with a drop in glucose tolerance, an increase in the atherogenic index of plasma, and an impaired lipid profile. Bone remodeling markers suggest a decreased bone formation coupled with an increased bone resorption. Fluid shifts and muscular unloading participate to a marked cardiovascular and sensorimotor deconditioning with decreased orthostatic tolerance, aerobic capacity, and postural balance. Collected datasets provide a comprehensive multi-systemic assessment of dry immersion effects in women and pave the way for future sex-based evaluations of countermeasures.
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Affiliation(s)
- Adrien Robin
- Univ Angers, CRC, CHU Angers, Inserm, CNRS, MITOVASC, Equipe CARME, SFR ICAT, F-49000, Angers, France.
| | | | - Claire Laurens
- Institute of Metabolic and Cardiovascular Diseases, INSERM, Paul Sabatier University, UMR1297, Toulouse, France
| | - Audrey Bergouignan
- Anschutz Health and Wellness Center, Division of Endocrinology, University of Colorado, Aurora, CO, USA
| | - Laurence Vico
- INSERM, University Jean Monnet, Mines Saint-Etienne, U 1059, Saint Etienne, France
| | | | - Anne Pavy-Le Traon
- Department of Neurology, CHU Toulouse and I2MC-INSERM 1297, Toulouse, France
| | - Marc Kermorgant
- Department of Neurology, CHU Toulouse and I2MC-INSERM 1297, Toulouse, France
| | - Angèle Chopard
- DMEM, Montpellier University, INRAE, Montpellier, France
| | - Guillaume Py
- DMEM, Montpellier University, INRAE, Montpellier, France
| | - David Andrew Green
- Centre of Human and Applied Physiological Sciences, King's College London, London, UK
| | - Michael Tipton
- Extreme Environments Laboratory, School of Sport, Health and Exercise Science, University of Portsmouth, Portsmouth, PO1 2EF, UK
| | - Alexander Choukér
- Laboratory of Translational Research Stress and Immunity, Department of Anesthesiology, Hospital of the Ludwig-Maximilians-University (LUM), Munich, Germany
| | - Pierre Denise
- Université de Caen Normandie, Inserm, COMETE U1075, CYCERON, CHU de Caen, F-14000, Caen, France
| | - Hervé Normand
- Université de Caen Normandie, Inserm, COMETE U1075, CYCERON, CHU de Caen, F-14000, Caen, France
| | - Stéphane Blanc
- DEPE-IPHC - Département Ecologie, Physiologie et Ethologie, Strasbourg, France
| | - Chantal Simon
- CarMeN Laboratory, INSERM 1060, INRA 1397, University Claude Bernard Lyon1, Human Nutrition Research Center Rhône-Alpes, Oullins, France
| | - Elisabeth Rosnet
- Faculty of Sport Sciences, Université de Reims Champagne-Ardenne, Reims, France
| | | | - Peter Fernandez
- INSERM, University Jean Monnet, Mines Saint-Etienne, U 1059, Saint Etienne, France
| | - Isabelle de Glisezinski
- Institute of Metabolic and Cardiovascular Diseases, INSERM, Paul Sabatier University, UMR1297, Toulouse, France
| | - Dominique Larrouy
- Institute of Metabolic and Cardiovascular Diseases, INSERM, Paul Sabatier University, UMR1297, Toulouse, France
| | - Isabelle Harant-Farrugia
- Institute of Metabolic and Cardiovascular Diseases, INSERM, Paul Sabatier University, UMR1297, Toulouse, France
| | - Inês Antunes
- Telespazio Belgium S.R.L. for the European Space Agency, Noordwijk, The Netherlands
| | | | | | | | - Marc-Antoine Custaud
- Univ Angers, CRC, CHU Angers, Inserm, CNRS, MITOVASC, Equipe CARME, SFR ICAT, F-49000, Angers, France.
| | - Nastassia Navasiolava
- Univ Angers, CRC, CHU Angers, Inserm, CNRS, MITOVASC, Equipe CARME, SFR ICAT, F-49000, Angers, France.
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22
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Mahalmani V, Medhi B. Space medicine: Hunting for pharmacologist's guide in dealing with drugs in microgravity. Indian J Pharmacol 2023; 55:281-285. [PMID: 37929405 PMCID: PMC10751531 DOI: 10.4103/ijp.ijp_591_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/10/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023] Open
Affiliation(s)
- Vidya Mahalmani
- Department of Pharmacology, Jawaharlal Nehru Medical College, KAHER, Belagavi, Karnataka, India
| | - Bikash Medhi
- Department of Pharmacology, PGIMER, Chandigarh, India
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23
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Pathare NN, Fayet-Moore F, Fogarty JA, Jacka FN, Strandwitz P, Strangman GE, Donoviel DB. Nourishing the brain on deep space missions: nutritional psychiatry in promoting resilience. Front Neural Circuits 2023; 17:1170395. [PMID: 37663891 PMCID: PMC10469890 DOI: 10.3389/fncir.2023.1170395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
The grueling psychological demands of a journey into deep space coupled with ever-increasing distances away from home pose a unique problem: how can we best take advantage of the benefits of fresh foods in a place that has none? Here, we consider the biggest challenges associated with our current spaceflight food system, highlight the importance of supporting optimal brain health on missions into deep space, and discuss evidence about food components that impact brain health. We propose a future food system that leverages the gut microbiota that can be individually tailored to best support the brain and mental health of crews on deep space long-duration missions. Working toward this goal, we will also be making investments in sustainable means to nourish the crew that remains here on spaceship Earth.
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Affiliation(s)
- Nihar N. Pathare
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, United States
| | | | - Jennifer A. Fogarty
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, United States
- Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Translational Research Institute for Space Health (TRISH), Houston, TX, United States
| | - Felice N. Jacka
- Food and Mood Centre, Institute for Mental and Physical Health and Clinical Translation (IMPACT) Strategic Research Centre, Deakin University, Geelong, VIC, Australia
- Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia
| | | | - Gary E. Strangman
- Neural Systems Group, Division of Health Sciences and Technology, Massachusetts General Hospital, Harvard Medical School and Harvard-MIT, Charlestown, MA, United States
- Department of Psychology, Harvard University, Cambridge, MA, United States
| | - Dorit B. Donoviel
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, United States
- Translational Research Institute for Space Health (TRISH), Houston, TX, United States
- Department of Pharmacology and Chemical Biology, Baylor College of Medicine, Houston, TX, United States
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24
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Faerman A, Clark JB, Sutton JP. Neuropsychological considerations for long-duration deep spaceflight. Front Physiol 2023; 14:1146096. [PMID: 37275233 PMCID: PMC10235498 DOI: 10.3389/fphys.2023.1146096] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/09/2023] [Indexed: 06/07/2023] Open
Abstract
The deep space environment far beyond low-Earth orbit (LEO) introduces multiple and simultaneous risks for the functioning and health of the central nervous system (CNS), which may impair astronauts' performance and wellbeing. As future deep space missions to Mars, moons, or asteroids will also exceed current LEO stay durations and are estimated to require up to 3 years, we review recent evidence with contemporary and historic spaceflight case studies addressing implications for long-duration missions. To highlight the need for specific further investigations, we provide neuropsychological considerations integrating cognitive and motor functions, neuroimaging, neurological biomarkers, behavior changes, and mood and affect to construct a multifactorial profile to explain performance variability, subjective experience, and potential risks. We discuss the importance of adopting a neuropsychological approach to long-duration deep spaceflight (LDDS) missions and draw specific recommendations for future research in space neuropsychology.
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Affiliation(s)
- Afik Faerman
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, United States
| | - Jonathan B. Clark
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, United States
- Department of Neurology, Baylor College of Medicine, Houston, TX, United States
| | - Jeffrey P. Sutton
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, United States
- Translational Research Institute for Space Health, Baylor College of Medicine, Houston, TX, United States
- Department of Medicine, Baylor College of Medicine, Houston, TX, United States
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25
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Sanford LD, Adkins AM, Boden AF, Gotthold JD, Harris RD, Shuboni-Mulligan D, Wellman LL, Britten RA. Sleep and Core Body Temperature Alterations Induced by Space Radiation in Rats. Life (Basel) 2023; 13:life13041002. [PMID: 37109531 PMCID: PMC10144689 DOI: 10.3390/life13041002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/09/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Sleep problems in astronauts can arise from mission demands and stress and can impact both their health and ability to accomplish mission objectives. In addition to mission-related physical and psychological stressors, the long durations of the proposed Mars missions will expose astronauts to space radiation (SR), which has a significant impact on the brain and may also alter sleep and physiological functions. Therefore, in this study, we assessed sleep, EEG spectra, activity, and core body temperature (CBT) in rats exposed to SR and compared them to age-matched nonirradiated rats. Male outbred Wistar rats (8-9 months old at the time of the study) received SR (15 cGy GCRsim, n = 15) or served as age- and time-matched controls (CTRL, n = 15) without irradiation. At least 90 days after SR and 3 weeks prior to recording, all rats were implanted with telemetry transmitters for recording EEG, activity, and CBT. Sleep, EEG spectra (delta, 0.5-4 Hz; theta, 4-8 Hz; alpha, 8-12 Hz; sigma, 12-16 Hz; beta, 16-24 Hz), activity, and CBT were examined during light and dark periods and during waking and sleeping states. When compared to the CTRLs, SR produced significant reductions in the amounts of dark period total sleep time, total nonrapid eye movement sleep (NREM), and total rapid eye movement sleep (REM), with significant decreases in light and dark period NREM deltas and dark period REM thetas as well as increases in alpha and sigma in NREM and REM during either light or dark periods. The SR animals showed modest increases in some measures of activity. CBT was significantly reduced during waking and sleeping in the light period. These data demonstrate that SR alone can produce alterations to sleep and temperature control that could have consequences for astronauts and their ability to meet mission demands.
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Affiliation(s)
- Larry D Sanford
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Austin M Adkins
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Alea F Boden
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Justin D Gotthold
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Ryan D Harris
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Dorela Shuboni-Mulligan
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Laurie L Wellman
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Richard A Britten
- Center for Integrative Neuroscience and Inflammatory Diseases, Radiation Oncology, Eastern Virginia Medical School, Norfolk, VA 23507, USA
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26
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Capri M, Conte M, Ciurca E, Pirazzini C, Garagnani P, Santoro A, Longo F, Salvioli S, Lau P, Moeller R, Jordan J, Illig T, Villanueva MM, Gruber M, Bürkle A, Franceschi C, Rittweger J. Long-term human spaceflight and inflammaging: Does it promote aging? Ageing Res Rev 2023; 87:101909. [PMID: 36918115 DOI: 10.1016/j.arr.2023.101909] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Spaceflight and its associated stressors, such as microgravity, radiation exposure, confinement, circadian derailment and disruptive workloads represent an unprecedented type of exposome that is entirely novel from an evolutionary stand point. Within this perspective, we aimed to review the effects of prolonged spaceflight on immune-neuroendocrine systems, brain and brain-gut axis, cardiovascular system and musculoskeletal apparatus, highlighting in particular the similarities with an accelerated aging process. In particular, spaceflight-induced muscle atrophy/sarcopenia and bone loss, vascular and metabolic changes, hyper and hypo reaction of innate and adaptive immune system appear to be modifications shared with the aging process. Most of these modifications are mediated by molecular events that include oxidative and mitochondrial stress, autophagy, DNA damage repair and telomere length alteration, among others, which directly or indirectly converge on the activation of an inflammatory response. According to the inflammaging theory of aging, such an inflammatory response could be a driver of an acceleration of the normal, physiological rate of aging and it is likely that all the systemic modifications in turn lead to an increase of inflammaging in a sort of vicious cycle. The most updated countermeasures to fight these modifications will be also discussed in the light of their possible application not only for astronauts' benefit, but also for older adults on the ground.
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Affiliation(s)
- Miriam Capri
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Maria Conte
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy.
| | - Erika Ciurca
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Chiara Pirazzini
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Paolo Garagnani
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy; Clinical Chemistry Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, Stockholm, Sweden; CNR Institute of Molecular Genetics, Unit of Bologna, Bologna, Italy; Center for Applied Biomedical Research (CRBA), St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Aurelia Santoro
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Federica Longo
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Stefano Salvioli
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Patrick Lau
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Ralf Moeller
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Jens Jordan
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Medical Faculty, University of Cologne, Cologne, Germany
| | - Thomas Illig
- Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Maria-Moreno Villanueva
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, Konstanz, Germany
| | - Markus Gruber
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, Konstanz, Germany
| | - Alexander Bürkle
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Claudio Franceschi
- Department of Applied Mathematics of the Institute of ITMM, National Research Lobachevsky State University of Nizhny Novgorod, the Russian Federation
| | - Jörn Rittweger
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Department of Pediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
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27
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Le Roy B, Martin-Krumm C, Pinol N, Dutheil F, Trousselard M. Human challenges to adaptation to extreme professional environments: A systematic review. Neurosci Biobehav Rev 2023; 146:105054. [PMID: 36682426 DOI: 10.1016/j.neubiorev.2023.105054] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023]
Abstract
NASA is planning human exploration of the Moon, while preparations are underway for human missions to Mars, and deeper into the solar system. These missions will expose space travelers to unusual conditions, which they will have to adapt to. Similar conditions are found in several analogous environments on Earth, and studies can provide an initial understanding of the challenges for human adaptation. Such environments can be marked by an extreme climate, danger, limited facilities and supplies, isolation from loved ones, or mandatory interaction with others. They are rarely encountered by most human beings, and mainly concern certain professions in limited missions. This systematic review focuses on professional extreme environments and captures data from papers published since 2005. Our findings provide an insight into their physiological, biological, cognitive, and behavioral impacts for better understand how humans adapt or not to them. This study provides a framework for studying adaptation, which is particularly important in light of upcoming longer space expeditions to more distant destinations.
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Affiliation(s)
- Barbara Le Roy
- Stress Neurophysiology Unit, French Armed Forces Biomedical Research Institute, Brétigny-sur-Orge Cedex, France; CNES, Paris, France; APEMAC/EPSAM, EA 4360 Metz Cedex, France.
| | - Charles Martin-Krumm
- Stress Neurophysiology Unit, French Armed Forces Biomedical Research Institute, Brétigny-sur-Orge Cedex, France; APEMAC/EPSAM, EA 4360 Metz Cedex, France; École de Psychologues Praticiens, Catholic Institute of Paris, EA Religion, Culture et société, Paris, France
| | - Nathalie Pinol
- Université Clermont Auvergne, Health Library, Clermont-Ferrand, France
| | - Frédéric Dutheil
- University Hospital of Clermont-Ferrand, CHU Clermont-Ferrand, Occupational and Environmental Medicine, WittyFit, F 63000 Clermont-Ferrand, France; Université Clermont Auvergne, CNRS, LaPSCo, Physiological and Psychosocial Stress, 34 Avenue Carnot, 63 037 Clermont-Ferrand, France
| | - Marion Trousselard
- Stress Neurophysiology Unit, French Armed Forces Biomedical Research Institute, Brétigny-sur-Orge Cedex, France; APEMAC/EPSAM, EA 4360 Metz Cedex, France; French Military Health Service Academy, Paris, France
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28
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Zhang P, Yan J, Liu Z, Zhou Q. Impeded frontal-occipital communications during Go/Nogo tasks in humans owing to mental workload. Behav Brain Res 2023; 438:114182. [PMID: 36309243 DOI: 10.1016/j.bbr.2022.114182] [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: 07/16/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 12/05/2022]
Abstract
Human brains rely on oscillatory coupling mechanisms for regulating access to prefrontal cognitive resources, dynamically communicating between the frontal and remote cortex. We worry that communications across cortical regions will be impeded when humans in extreme space environments travel with mental load work, affecting the successful completion of missions. Here, we monitored crews of workers performing a Go/Nogo task in space travel, accompanied by acquisitions of electroencephalography (EEG) signals. These data demonstrated that when the target stimulus suddenly changed to the non-target stimulus, an instantaneous communication mechanism between the frontal and occipital cortex was established by theta-gamma phase-amplitude coupling (PAC). However, this frontal-occipital communication was impeded because of the mental workload of space travel. 86 healthy volunteers who participated in the ground imitation further indicated that mental workload caused decoupled theta-gamma PAC during the Go/Nogo task, impeding frontal-occipital communications and behavioral performance. We also found that the degree of theta-gamma PAC coupling in space was significantly lower than on the ground, indicating that mental workload and other hazards worsen the impeded frontal-occipital communications of humans. These results could guide countermeasures for the inadaptability of humans working in spaceflight.
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Affiliation(s)
- Peng Zhang
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Juan Yan
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Zhongqi Liu
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Qianxiang Zhou
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China.
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29
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Blackwell AA, Tracz JA, Fesshaye AS, Tidmore A, Osterlund Oltmanns JR, Schaeffer EA, Lake RI, Wallace DG, Britten RA. Fine motor deficits exhibited in rat string-pulling behavior following exposure to sleep fragmentation and deep space radiation. Exp Brain Res 2023; 241:427-440. [PMID: 36574036 DOI: 10.1007/s00221-022-06527-z] [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: 09/17/2022] [Accepted: 12/06/2022] [Indexed: 12/28/2022]
Abstract
Deep space flight missions will expose astronauts to multiple stressors, including sleep fragmentation and space radiation. There is debate over whether sleep disruptions are an issue in deep space. While these stressors independently impair sensorimotor function, the combined effects on performance are currently unknown. String-pulling behavior involves highly organized bimanual reach-to-grasp and withdraw movements. This behavior was examined under rested wakeful conditions and immediately following one session of sleep fragmentation in Sham and irradiated rats 3 months after exposure (10 cGy 4Helium or 5-ion simulated Galactic Cosmic Radiation). Sleep fragmentation disrupted several aspects of string-pulling behavior, such that rats' ability to grasp the string was reduced, reach endpoint concentration was more variable, and distance traveled by the nose increased in the Y-range compared to rested wakeful performance. Overall, irradiated rats missed the string more than Sham rats 3 months post-exposure. Irradiated rats also exhibited differential impairments at 3 months, with additional deficits unveiled after sleep fragmentation. 4Helium-exposed rats took longer to approach the string after sleep fragmentation. Further, rats exposed to 4Helium traveled shorter withdraw distances 3 months after irradiation, while this only emerged in the other irradiated group after sleep fragmentation. These findings identify sleep fragmentation as a risk for fine motor dysfunction in Sham and irradiated conditions, in addition to radiation exposure. There may be complex temporal alterations in performance that are stressor- and ion-dependent. Thus, it is critical to implement appropriate models of multi-flight stressors and performance assessments in preparation for future deep space flight missions.
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Affiliation(s)
- Ashley A Blackwell
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA, 23507, USA. .,Center for Integrative Neuroscience and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA, 23507, USA.
| | - Jovanna A Tracz
- School of Medicine, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
| | - Arriyam S Fesshaye
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA, 23507, USA
| | - Alyssa Tidmore
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA, 23507, USA
| | | | - Ericka A Schaeffer
- Department of Psychology, Northern Illinois University, DeKalb, IL, 60115, USA
| | - Rami I Lake
- Department of Psychology, Northern Illinois University, DeKalb, IL, 60115, USA
| | - Douglas G Wallace
- Department of Psychology, Northern Illinois University, DeKalb, IL, 60115, USA
| | - Richard A Britten
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA, 23507, USA.,Center for Integrative Neuroscience and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA, 23507, USA.,Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
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Hirayama J, Hattori A, Takahashi A, Furusawa Y, Tabuchi Y, Shibata M, Nagamatsu A, Yano S, Maruyama Y, Matsubara H, Sekiguchi T, Suzuki N. Physiological consequences of space flight, including abnormal bone metabolism, space radiation injury, and circadian clock dysregulation: Implications of melatonin use and regulation as a countermeasure. J Pineal Res 2023; 74:e12834. [PMID: 36203395 DOI: 10.1111/jpi.12834] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/03/2022] [Accepted: 10/04/2022] [Indexed: 12/15/2022]
Abstract
Exposure to the space environment induces a number of pathophysiological outcomes in astronauts, including bone demineralization, sleep disorders, circadian clock dysregulation, cardiovascular and metabolic dysfunction, and reduced immune system function. A recent report describing experiments aboard the Space Shuttle mission, STS-132, showed that the level of melatonin, a hormone that provides the biochemical signal of darkness, was decreased during microgravity in an in vitro culture model. Additionally, abnormal lighting conditions in outer space, such as low light intensity in orbital spacecraft and the altered 24-h light-dark cycles, may result in the dysregulation of melatonin rhythms and the misalignment of the circadian clock from sleep and work schedules in astronauts. Studies on Earth have demonstrated that melatonin regulates various physiological functions including bone metabolism. These data suggest that the abnormal regulation of melatonin in outer space may contribute to pathophysiological conditions of astronauts. In addition, experiments with high-linear energy transfer radiation, a ground-based model of space radiation, showed that melatonin may serve as a protectant against space radiation. Gene expression profiling using an in vitro culture model exposed to space flight during the STS-132 mission, showed that space radiation alters the expression of DNA repair and oxidative stress response genes, indicating that melatonin counteracts the expression of these genes responsive to space radiation to promote cell survival. These findings implicate the use of exogenous melatonin and the regulation of endogenous melatonin as countermeasures for the physiological consequences of space flight.
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Affiliation(s)
- Jun Hirayama
- Department of Clinical Engineering, Faculty of Health Sciences & Division of Health Sciences, Graduate School of Sustainable Systems Science, Komatsu University, Komatsu, Japan
| | - Atsuhiko Hattori
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Japan
| | | | - Yukihiro Furusawa
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Yoshiaki Tabuchi
- Life Science Research Center, University of Toyama, Toyama, Japan
| | - Masahiro Shibata
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Japan
| | | | - Sachiko Yano
- Japan Aerospace Exploration Agency, Tsukuba, Japan
| | - Yusuke Maruyama
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Japan
| | - Hajime Matsubara
- Noto Center for Fisheries Science and Technology, Kanazawa University, Noto-cho, Ishikawa, Japan
| | - Toshio Sekiguchi
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Noto-cho, Japan
| | - Nobuo Suzuki
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Noto-cho, Japan
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Krittanawong C, Singh NK, Scheuring RA, Urquieta E, Bershad EM, Macaulay TR, Kaplin S, Dunn C, Kry SF, Russomano T, Shepanek M, Stowe RP, Kirkpatrick AW, Broderick TJ, Sibonga JD, Lee AG, Crucian BE. Human Health during Space Travel: State-of-the-Art Review. Cells 2022; 12:cells12010040. [PMID: 36611835 PMCID: PMC9818606 DOI: 10.3390/cells12010040] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022] Open
Abstract
The field of human space travel is in the midst of a dramatic revolution. Upcoming missions are looking to push the boundaries of space travel, with plans to travel for longer distances and durations than ever before. Both the National Aeronautics and Space Administration (NASA) and several commercial space companies (e.g., Blue Origin, SpaceX, Virgin Galactic) have already started the process of preparing for long-distance, long-duration space exploration and currently plan to explore inner solar planets (e.g., Mars) by the 2030s. With the emergence of space tourism, space travel has materialized as a potential new, exciting frontier of business, hospitality, medicine, and technology in the coming years. However, current evidence regarding human health in space is very limited, particularly pertaining to short-term and long-term space travel. This review synthesizes developments across the continuum of space health including prior studies and unpublished data from NASA related to each individual organ system, and medical screening prior to space travel. We categorized the extraterrestrial environment into exogenous (e.g., space radiation and microgravity) and endogenous processes (e.g., alteration of humans' natural circadian rhythm and mental health due to confinement, isolation, immobilization, and lack of social interaction) and their various effects on human health. The aim of this review is to explore the potential health challenges associated with space travel and how they may be overcome in order to enable new paradigms for space health, as well as the use of emerging Artificial Intelligence based (AI) technology to propel future space health research.
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Affiliation(s)
- Chayakrit Krittanawong
- Department of Medicine and Center for Space Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX 77030, USA
- Translational Research Institute for Space Health, Houston, TX 77030, USA
- Department of Cardiovascular Diseases, New York University School of Medicine, New York, NY 10016, USA
- Correspondence: or (C.K.); (B.E.C.); Tel.: +1-713-798-4951 (C.K.); +1-281-483-0123 (B.E.C.)
| | - Nitin Kumar Singh
- Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
| | | | - Emmanuel Urquieta
- Translational Research Institute for Space Health, Houston, TX 77030, USA
- Department of Emergency Medicine and Center for Space Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Eric M. Bershad
- Department of Neurology, Center for Space Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Scott Kaplin
- Department of Cardiovascular Diseases, New York University School of Medicine, New York, NY 10016, USA
| | - Carly Dunn
- Department of Dermatology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Stephen F. Kry
- Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | | | - Marc Shepanek
- Office of the Chief Health and Medical Officer, NASA, Washington, DC 20546, USA
| | | | - Andrew W. Kirkpatrick
- Department of Surgery and Critical Care Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada
| | | | - Jean D. Sibonga
- Division of Biomedical Research and Environmental Sciences, NASA Lyndon B. Johnson Space Center, Houston, TX 77058, USA
| | - Andrew G. Lee
- Department of Ophthalmology, University of Texas Medical Branch School of Medicine, Galveston, TX 77555, USA
- Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, TX 77030, USA
- Department of Ophthalmology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Department of Ophthalmology, Texas A and M College of Medicine, College Station, TX 77807, USA
- Department of Ophthalmology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA
- Departments of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medicine, New York, NY 10021, USA
| | - Brian E. Crucian
- National Aeronautics and Space Administration (NASA) Johnson Space Center, Human Health and Performance Directorate, Houston, TX 77058, USA
- Correspondence: or (C.K.); (B.E.C.); Tel.: +1-713-798-4951 (C.K.); +1-281-483-0123 (B.E.C.)
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32
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Barkaszi I, Ehmann B, Tölgyesi B, Balázs L, Altbäcker A. Are head-down tilt bedrest studies capturing the true nature of spaceflight-induced cognitive changes? A review. Front Physiol 2022; 13:1008508. [PMID: 36582360 PMCID: PMC9792854 DOI: 10.3389/fphys.2022.1008508] [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: 07/31/2022] [Accepted: 10/26/2022] [Indexed: 12/15/2022] Open
Abstract
Although a number of studies have examined cognitive functions in space, the reasons behind the observed changes described by space research and anecdotal reports have not yet been elucidated. A potential source of cognitive changes is the cephalad fluid shift in the body caused by the lack of hydrostatic pressure under microgravity. These alterations can be modeled under terrestrial conditions using ground-based studies, such as head-down tilt bedrest (HDBR). In this review, we compare the results of the space and HDBR cognitive research. Results for baseline and in-flight/in-HDBR comparisons, and for baseline and post-flight/post-HDBR comparisons are detailed regarding sensorimotor skills, time estimation, attention, psychomotor speed, memory, executive functions, reasoning, mathematical processing, and cognitive processing of emotional stimuli. Beyond behavioral performance, results regarding brain electrical activity during simulated and real microgravity environments are also discussed. Finally, we highlight the research gaps and suggest future directions.
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Affiliation(s)
- Irén Barkaszi
- Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary
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Aziz S, Raza MA, Noreen M, Iqbal MZ, Raza SM. Astropharmacy: Roles of Pharmacist in Space. Innov Pharm 2022; 13:10.24926/iip.v13i3.4956. [PMID: 36627911 PMCID: PMC9815863 DOI: 10.24926/iip.v13i3.4956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Since disease is a natural aspect of life, human deep space missions will largely depend on preventing disease, diagnosis, and treatment. Pharmaceuticals are used to identify, treat, prevent, or cure illnesses, but they are unstable on Earth and even more so in space. What if the pharmacist could prepare small quantities of medicines in space, on site, as needed? The alteration in pharmacokinetic and pharmacodynamic (PK-PD) and pharmacogenomics with flying and medications will need to be customised for each person individually and specifically at the point of need because of drug stability issues. We can't meet the expense of bringging everything we might need, so pharmacists must devise ways to manufacture medications in-situ and on-demand. With this skill, pharmacists would be able to fulfill the demand of any exploration mission that involved spaceflight with robust pharmaceuticals that would be stable enough to last the duration of the mission, comprehensive enough to treat all potential medical events, safe, and effective, notwithstanding the known PK-PD and pharmacogenetic alterations that take place during spaceflight. The purpose of this article was to review topics related with Astropharmacy. The topics include: the need of Astropharmacy in space, health-related problems caused by hostile space conditions, storage problems in space, methods to establish the stability and effectiveness of pharmaceutical products in space, and alteration in human physiology including PK-PD and pharmacogenomics and highlight the pharmacist's potential roles in the pharmacies orbiting the space.
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Affiliation(s)
- Shireen Aziz
- Faculty of Pharmacy, The University of Faisalabad, Punjab, Pakistan,School of Pharmacy, Zhengzhou University, Henan, China,Faculty of Pharmacy, University of Sargodha, Punjab, Pakistan
| | - Muhammad Ahmer Raza
- Faculty of Pharmacy, The University of Faisalabad, Punjab, Pakistan,Department of Pharmacy Practice, The University of Lahore, Punjab, Pakistan
| | - Misbah Noreen
- Faculty of Pharmacy, The University of Faisalabad, Punjab, Pakistan
| | | | - Shahid Masood Raza
- Faculty of Pharmacy, The University of Faisalabad, Punjab, Pakistan,School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China,Corresponding author: Shahid Masood Raza School of Pharmacy, Tongji Medical College Huazhong University of Science and Technology Hubei, China;
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Seoane-Viaño I, Ong JJ, Basit AW, Goyanes A. To infinity and beyond: Strategies for fabricating medicines in outer space. Int J Pharm X 2022; 4:100121. [PMID: 35782363 PMCID: PMC9240807 DOI: 10.1016/j.ijpx.2022.100121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 02/06/2023] Open
Abstract
Recent advancements in next generation spacecrafts have reignited public excitement over life beyond Earth. However, to safeguard the health and safety of humans in the hostile environment of space, innovation in pharmaceutical manufacturing and drug delivery deserves urgent attention. In this review/commentary, the current state of medicines provision in space is explored, accompanied by a forward look on the future of pharmaceutical manufacturing in outer space. The hazards associated with spaceflight, and their corresponding medical problems, are first briefly discussed. Subsequently, the infeasibility of present-day medicines provision systems for supporting deep space exploration is examined. The existing knowledge gaps on the altered clinical effects of medicines in space are evaluated, and suggestions are provided on how clinical trials in space might be conducted. An envisioned model of on-site production and delivery of medicines in space is proposed, referencing emerging technologies (e.g. Chemputing, synthetic biology, and 3D printing) being developed on Earth that may be adapted for extra-terrestrial use. This review concludes with a critical analysis on the regulatory considerations necessary to facilitate the adoption of these technologies and proposes a framework by which these may be enforced. In doing so, this commentary aims to instigate discussions on the pharmaceutical needs of deep space exploration, and strategies on how these may be met. Space is a hostile environment that threatens human health and drug stability. Data on the behaviour of medicines in space is critical but lacking. Novel drug manufacturing and delivery strategies are needed to safeguard crewmembers’ safety. Chemputing, synthetic biology, and 3D printing are examples of such emerging technologies. A regulatory framework for space medicines must be implemented to assure quality.
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Affiliation(s)
- Iria Seoane-Viaño
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Paraquasil Group (GI-2109), Faculty of Pharmacy, Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela (USC), Santiago de Compostela 15782, Spain
| | - Jun Jie Ong
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Abdul W. Basit
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
- FabRx Ltd., 3 Romney Road, Ashford, Kent TN24 0RW, UK
- Corresponding authors at: Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
| | - Alvaro Goyanes
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
- FabRx Ltd., 3 Romney Road, Ashford, Kent TN24 0RW, UK
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia, The Institute of Materials (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela (USC), Santiago de Compostela, 15782, Spain
- Corresponding authors at: Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
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35
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Rahman SA, Kent BA, Grant LK, Clark T, Hanifin JP, Barger LK, Czeisler CA, Brainard GC, St Hilaire MA, Lockley SW. Effects of dynamic lighting on circadian phase, self-reported sleep and performance during a 45-day space analog mission with chronic variable sleep deficiency. J Pineal Res 2022; 73:e12826. [PMID: 35996978 PMCID: PMC11316501 DOI: 10.1111/jpi.12826] [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: 03/23/2022] [Revised: 07/29/2022] [Accepted: 08/20/2022] [Indexed: 10/15/2022]
Abstract
Spaceflight exposes crewmembers to circadian misalignment and sleep loss, which impair cognition and increase the risk of errors and accidents. We compared the effects of an experimental dynamic lighting schedule (DLS) with a standard static lighting schedule (SLS) on circadian phase, self-reported sleep and cognition during a 45-day simulated space mission. Sixteen participants (mean age [±SD] 37.4 ± 6.7 years; 5 F; n = 8/lighting condition) were studied in four-person teams at the NASA Human Exploration Research Analog. Participants were scheduled to sleep 8 h/night on two weekend nights, 5 h/night on five weekday nights, repeated for six 7-day cycles, with scheduled waketime fixed at 7:00 a.m. Compared to the SLS where illuminance and spectrum remained constant during wake (~4000K), DLS increased the illuminance and short-wavelength (blue) content of white light (~6000K) approximately threefold in the main workspace (Level 1), until 3 h before bedtime when illuminance was reduced by ~96% and the blue content also reduced throughout (~4000K × 2 h, ~3000K × 1 h) until bedtime. The average (±SE) urinary 6-sulphatoxymelatonin (aMT6s) acrophase time was significantly later in the SLS (6.22 ± 0.34 h) compared to the DLS (4.76 ± 0.53 h) and more variable in SLS compared to DLS (37.2 ± 3.6 min vs. 28.2 ± 2.4 min, respectively, p = .04). Compared to DLS, self-reported sleep was more frequently misaligned relative to circadian phase in SLS RR: 6.75, 95% CI 1.55-29.36, p = .01), but neither self-reported sleep duration nor latency to sleep was different between lighting conditions. Accuracy in the abstract matching and matrix reasoning tests were significantly better in DLS compared to SLS (false discovery rate-adjusted p ≤ .04). Overall, DLS alleviated the drift in circadian phase typically observed in space analog studies and reduced the prevalence of self-reported sleep episodes occurring at an adverse circadian phase. Our results support incorporating DLS in future missions, which may facilitate appropriate circadian alignment and reduce the risk of sleep disruption.
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Affiliation(s)
- Shadab A Rahman
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Brianne A Kent
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Leilah K Grant
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | | | - John P Hanifin
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA
| | - Laura K Barger
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Charles A Czeisler
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - George C Brainard
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA
| | - Melissa A St Hilaire
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Steven W Lockley
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
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Abstract
Exploring space is one of the most attractive goals that humanity ever set, notwithstanding, there are some psychological and psychopathological risks that should be considered. Several studies identified some possible hazards of space travels and related physical and psychological consequences on astronauts. If some psychological reactions are obviously inherent to the characteristics of the spaceships (habitability, confinement, psychological, and interpersonal relationships), other (disturbances of sleep-wake cycle, personality changes, depression, anxiety, apathy, psychosomatic symptoms, neurovestibular problems, alterations in cognitive function, and sensory perception) represent a clear warning of possible central nervous system (CNS) alterations, possibly due to microgravity and cosmic radiation. Such conditions and eventual CNS changes might compromise the success of missions and the ability to cope with unexpected events and may lead to individual and long-term impairments. Therefore, further studies are needed, perhaps, requiring the birth of a novel branch of psychology/psychiatry that should not only consider the risks related to space exploration, but the implementation of targeted strategies to prevent them.
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Zhang P, Yan J, Liu Z, Yu H, Zhao R, Zhou Q. Extreme conditions affect neuronal oscillations of cerebral cortices in humans in the China Space Station and on Earth. Commun Biol 2022; 5:1041. [PMID: 36180522 PMCID: PMC9525319 DOI: 10.1038/s42003-022-04018-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 09/21/2022] [Indexed: 02/06/2023] Open
Abstract
Rhythmical oscillations of neural populations can reflect working memory performance. However, whether neuronal oscillations of the cerebral cortex change in extreme environments, especially in a space station, remains unclear. Here, we recorded electroencephalography (EEG) signals when volunteers and astronauts were executing a memory task in extreme working conditions. Our experiments showed that two extreme conditions affect neuronal oscillations of the cerebral cortex and manifest in different ways. Lengthy periods of mental work impairs the gating mechanism formed by theta-gamma phase-amplitude coupling of two cortical areas, and sleep deprivation disrupts synaptic homeostasis, as reflected by the substantial increase in theta wave activity in the cortical frontal-central area. In addition, we excluded the possibility that nutritional supply or psychological situations caused decoupled theta-gamma phase-amplitude coupling or an imbalance in theta wave activity increase. Therefore, we speculate that the decoupled theta-gamma phase-amplitude coupling detected in astronauts results from their lengthy periods of mental work in the China Space Station. Furthermore, comparing preflight and inflight experiments, we find that long-term spaceflight and other hazards in the space station could worsen this decoupling evolution. This particular neuronal oscillation mechanism in the cerebral cortex could guide countermeasures for the inadaptability of humans working in spaceflight.
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Affiliation(s)
- Peng Zhang
- grid.64939.310000 0000 9999 1211School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 China ,grid.64939.310000 0000 9999 1211Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191 China
| | - Juan Yan
- grid.198530.60000 0000 8803 2373China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, 100088 China
| | - Zhongqi Liu
- grid.64939.310000 0000 9999 1211School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 China ,grid.64939.310000 0000 9999 1211Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191 China
| | - Hongqiang Yu
- grid.418516.f0000 0004 1791 7464China Astronaut Research and Training Center, Beijing, 100193 China
| | - Rui Zhao
- grid.418516.f0000 0004 1791 7464China Astronaut Research and Training Center, Beijing, 100193 China
| | - Qianxiang Zhou
- grid.64939.310000 0000 9999 1211School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 China ,grid.64939.310000 0000 9999 1211Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191 China
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38
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Seidler RD, Stern C, Basner M, Stahn AC, Wuyts FL, zu Eulenburg P. Future research directions to identify risks and mitigation strategies for neurostructural, ocular, and behavioral changes induced by human spaceflight: A NASA-ESA expert group consensus report. Front Neural Circuits 2022; 16:876789. [PMID: 35991346 PMCID: PMC9387435 DOI: 10.3389/fncir.2022.876789] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
A team of experts on the effects of the spaceflight environment on the brain and eye (SANS: Spaceflight-Associated Neuro-ocular Syndrome) was convened by NASA and ESA to (1) review spaceflight-associated structural and functional changes of the human brain and eye, and any interactions between the two; and (2) identify critical future research directions in this area to help characterize the risk and identify possible countermeasures and strategies to mitigate the spaceflight-induced brain and eye alterations. The experts identified 14 critical future research directions that would substantially advance our knowledge of the effects of spending prolonged periods of time in the spaceflight environment on SANS, as well as brain structure and function. They used a paired comparison approach to rank the relative importance of these 14 recommendations, which are discussed in detail in the main report and are summarized briefly below.
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Affiliation(s)
- Rachael D. Seidler
- Department of Applied Physiology & Kinesiology, Health and Human Performance, University of Florida, Gainesville, FL, United States
| | - Claudia Stern
- Department of Clinical Aerospace Medicine, German Aerospace Center (DLR) and ISS Operations and Astronauts Group, European Astronaut Centre, European Space Agency (ESA), Cologne, Germany
- *Correspondence: Claudia Stern,
| | - Mathias Basner
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Alexander C. Stahn
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Floris L. Wuyts
- Department of Physics, University of Antwerp, Antwerp, Belgium
- Laboratory for Equilibrium Investigations and Aerospace (LEIA), Antwerp, Belgium
| | - Peter zu Eulenburg
- German Vertigo and Balance Center, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
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39
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Mian A, Aamir Mian M. Space Medicine: Inspiring a new generation of physicians. Postgrad Med J 2022:7150864. [PMID: 37137531 DOI: 10.1136/pmj-2022-141875] [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: 04/27/2022] [Accepted: 06/18/2022] [Indexed: 11/03/2022]
Abstract
Space medicine is critical in enabling safe human exploration of space. The discipline focuses on supporting human survival, health, and performance in the austere environment of space. It is set to grow ever more important as significant transitions in the standard of space operations in the suborbital, low earth orbit (LEO) and beyond LEO domains will take place in the coming years. NASA along with their international and commercial partners have committed to returning to the Moon through the Artemis missions in this decade with the aim of achieving a permanent sustainable human presence on the lunar surface. Additionally, the development of reusable rockets is set to increase the number and frequency of humans going to space by making space travel more accessible. Commercial spaceflight and missions beyond LEO present many new challenges which space medicine physicians and researchers will need to address. Space medicine operates at the frontier of exploration, engineering, science and medicine. Aviation and Space Medicine (ASM) is the latest specialty to be recognised by the Royal College of Physicians and the General Medical Council in the UK. In this paper, we provide an introduction to space medicine, review the effects of spaceflight on human physiology and health along with countermeasures, medical and surgical issues in space, the varied roles of the ASM physician, challenges to UK space medicine practice and related research, and finally we explore the current representation of space medicine within the undergraduate curriculum.
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Affiliation(s)
- Areeb Mian
- Department of Surgery, University of Cambridge, Cambridge, UK
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40
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Unconscious mind activates central cardiovascular network and promotes adaptation to microgravity possibly anti-aging during 1-year-long spaceflight. Sci Rep 2022; 12:11862. [PMID: 35831420 PMCID: PMC9279338 DOI: 10.1038/s41598-022-14858-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 06/14/2022] [Indexed: 12/12/2022] Open
Abstract
The intrinsic cardiovascular regulatory system (β, 0.00013–0.02 Hz) did not adapt to microgravity after a 6-month spaceflight. The infraslow oscillation (ISO, 0.01–0.10 Hz) coordinating brain dynamics via thalamic astrocytes plays a key role in the adaptation to novel environments. We investigate the adaptive process of a healthy astronaut during a 12-month-long spaceflight by analyzing heart rate variability (HRV) in the LF (0.01–0.05 Hz) and MF1 (0.05–0.10 Hz) bands for two consecutive days on four occasions: before launch, at 1-month (ISS01) and 11-month (ISS02) in space, and after return to Earth. Alteration of β during ISS01 improved during ISS02 (P = 0.0167). During ISS01, LF and MF1 bands, reflecting default mode network (DMN) activity, started to increase at night (by 43.1% and 32.0%, respectively), when suprachiasmatic astrocytes are most active, followed by a 25.9% increase in MF1-band throughout the entire day during ISS02, larger at night (47.4%) than during daytime. Magnetic declination correlated positively with β during ISS01 (r = 0.6706, P < 0.0001) and ISS02 (r = 0.3958, P = 0.0095). Magnetic fluctuations may affect suprachiasmatic astrocytes, and the DMN involving ISOs and thalamic astrocytes may then be activated, first at night, then during the entire day, a mechanism that could perhaps promote an anti-aging effect noted in other investigations.
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41
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Charvat JM, Leonard D, Barlow CE, DeFina LF, Willis BL, Lee SMC, Stenger MB, Mercaldo SF, Van Baalen M. Long-term Cardiovascular Risk in Astronauts: Comparing NASA Mission Astronauts With a Healthy Cohort From the Cooper Center Longitudinal Study. Mayo Clin Proc 2022; 97:1237-1246. [PMID: 35787853 DOI: 10.1016/j.mayocp.2022.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/29/2022] [Accepted: 04/05/2022] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To determine the long-term cardiovascular disease risk of astronauts with spaceflight exposure compared with a well-matched cohort. METHODS National Aeronautics and Space Administration (NASA) astronauts are selected into their profession based upon education, unique skills, and health and are exposed to cardiovascular disease risk factors during spaceflight. The Cooper Center Longitudinal Study (CCLS) is a generally healthy cohort from a preventive medicine clinic in Dallas, Texas. Using a matched cohort design, astronauts who were selected beginning April 1, 1959, (and each subsequent selection class through 2009) and exposed to spaceflight were matched to CCLS participants who met astronaut selection criteria; 1514 CCLS participants matched to 303 astronauts in a 5-to-1 ratio on sex, date of birth, and age. The outcome of cardiovascular mortality through December 31, 2016, was determined by death certificate or National Death Index. RESULTS There were 11 deaths caused by cardiovascular disease (CVD) among astronauts and 46 among CCLS participants. There was no evidence of increased mortality risk in astronauts (hazard ratio [HR]=1.10; 95% confidence interval [CI], 0.50 to 2.45) with adjustment for baseline cardiovascular covariates. However, the secondary outcome of CVD events showed an increased adjusted risk in astronauts (HR=2.41; 95% CI, 1.26 to 4.63). CONCLUSION No increased risk of CVD mortality was observed in astronauts with spaceflight exposure compared with a well-matched cohort, but there was evidence of increased total CVD events. Given that the duration of spaceflight will increase, particularly on missions to Mars, continued surveillance and mitigation of CVD risk is needed to ensure the safety of those who venture into space.
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Affiliation(s)
| | | | | | | | | | - Stuart M C Lee
- JSC Cardiovascular and Vision Laboratory, KBR, Houston, Texas, USA
| | | | - Sarah F Mercaldo
- Lifetime Surveillance of Astronaut Health, KBR, Houston, Texas, USA
| | - Mary Van Baalen
- National Aeronautics and Space Administration, Houston, Texas, USA
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42
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Huff JL, Plante I, Blattnig SR, Norman RB, Little MP, Khera A, Simonsen LC, Patel ZS. Cardiovascular Disease Risk Modeling for Astronauts: Making the Leap From Earth to Space. Front Cardiovasc Med 2022; 9:873597. [PMID: 35665268 PMCID: PMC9161032 DOI: 10.3389/fcvm.2022.873597] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/26/2022] [Indexed: 11/24/2022] Open
Abstract
NASA has recently completed several long-duration missions to the International Space Station and is solidifying plans to return to the Moon, with an eye toward Mars and beyond. As NASA pushes the boundaries of human space exploration, the hazards of spaceflight, including space radiation, levy an increasing burden on astronaut health and performance. The cardiovascular system may be especially vulnerable due to the combined impacts of space radiation exposure, lack of gravity, and other spaceflight hazards. On Earth, the risk for cardiovascular disease (CVD) following moderate to high radiation doses is well-established from clinical, environmental, and occupational exposures (largely from gamma- and x-rays). Less is known about CVD risks associated with high-energy charged ions found in space and increasingly used in radiotherapy applications on Earth, making this a critical area of investigation for occupational radiation protection. Assessing CVD risk is complicated by its multifactorial nature, where an individual's risk is strongly influenced by factors such as family history, blood pressure, and lipid profiles. These known risk factors provide the basis for development of a variety of clinical risk prediction models (CPMs) that inform the likelihood of medical outcomes over a defined period. These tools improve clinical decision-making, personalize care, and support primary prevention of CVD. They may also be useful for individualizing risk estimates for CVD following radiation exposure both in the clinic and in space. In this review, we summarize unique aspects of radiation risk assessment for astronauts, and we evaluate the most widely used CVD CPMs for their use in NASA radiation risk assessment applications. We describe a comprehensive dual-use risk assessment framework that supports both clinical care and operational management of space radiation health risks using quantitative metrics. This approach is a first step in using personalized medicine for radiation risk assessment to support safe and productive spaceflight and long-term quality of life for NASA astronauts.
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Affiliation(s)
- Janice L. Huff
- National Aeronautics and Space Administration, Langley Research Center, Hampton, VA, United States
- *Correspondence: Janice L. Huff
| | - Ianik Plante
- KBR, Houston, TX, United States
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX, United States
| | - Steve R. Blattnig
- National Aeronautics and Space Administration, Langley Research Center, Hampton, VA, United States
| | - Ryan B. Norman
- National Aeronautics and Space Administration, Langley Research Center, Hampton, VA, United States
| | - Mark P. Little
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services (DHHS), Radiation Epidemiology Branch, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
| | - Amit Khera
- Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Lisa C. Simonsen
- National Aeronautics and Space Administration, NASA Headquarters, Washington, DC, United States
| | - Zarana S. Patel
- KBR, Houston, TX, United States
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX, United States
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43
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The effect of prolonged spaceflight on cerebrospinal fluid and perivascular spaces of astronauts and cosmonauts. Proc Natl Acad Sci U S A 2022; 119:e2120439119. [PMID: 35412862 PMCID: PMC9169932 DOI: 10.1073/pnas.2120439119] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Long-duration spaceflight induces changes to the brain and cerebrospinal fluid compartments and visual acuity problems known as spaceflight-associated neuro-ocular syndrome (SANS). The clinical relevance of these changes and whether they equally affect crews of different space agencies remain unknown. We used MRI to analyze the alterations occurring in the perivascular spaces (PVS) in NASA and European Space Agency astronauts and Roscosmos cosmonauts after a 6-mo spaceflight on the International Space Station (ISS). We found increased volume of basal ganglia PVS and white matter PVS (WM-PVS) after spaceflight, which was more prominent in the NASA crew than the Roscosmos crew. Moreover, both crews demonstrated a similar degree of lateral ventricle enlargement and decreased subarachnoid space at the vertex, which was correlated with WM-PVS enlargement. As all crews experienced the same environment aboard the ISS, the differences in WM-PVS enlargement may have been due to, among other factors, differences in the use of countermeasures and high-resistive exercise regimes, which can influence brain fluid redistribution. Moreover, NASA astronauts who developed SANS had greater pre- and postflight WM-PVS volumes than those unaffected. These results provide evidence for a potential link between WM-PVS fluid and SANS.
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44
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Tesei D, Jewczynko A, Lynch AM, Urbaniak C. Understanding the Complexities and Changes of the Astronaut Microbiome for Successful Long-Duration Space Missions. Life (Basel) 2022; 12:life12040495. [PMID: 35454986 PMCID: PMC9031868 DOI: 10.3390/life12040495] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/17/2022] [Accepted: 03/24/2022] [Indexed: 12/12/2022] Open
Abstract
During space missions, astronauts are faced with a variety of challenges that are unique to spaceflight and that have been known to cause physiological changes in humans over a period of time. Several of these changes occur at the microbiome level, a complex ensemble of microbial communities residing in various anatomic sites of the human body, with a pivotal role in regulating the health and behavior of the host. The microbiome is essential for day-to-day physiological activities, and alterations in microbiome composition and function have been linked to various human diseases. For these reasons, understanding the impact of spaceflight and space conditions on the microbiome of astronauts is important to assess significant health risks that can emerge during long-term missions and to develop countermeasures. Here, we review various conditions that are caused by long-term space exploration and discuss the role of the microbiome in promoting or ameliorating these conditions, as well as space-related factors that impact microbiome composition. The topics explored pertain to microgravity, radiation, immunity, bone health, cognitive function, gender differences and pharmacomicrobiomics. Connections are made between the trifecta of spaceflight, the host and the microbiome, and the significance of these interactions for successful long-term space missions.
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Affiliation(s)
- Donatella Tesei
- Department of Biotechnology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria;
| | - Anna Jewczynko
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
| | - Anne M. Lynch
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Camilla Urbaniak
- ZIN Technologies Inc., Middleburg Heights, OH 44130, USA
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
- Correspondence:
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45
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Sawyers L, Anderson C, Boyd MJ, Hessel V, Wotring V, Williams PM, Toh LS. Astropharmacy: Pushing the boundaries of the pharmacists’ role for sustainable space exploration. Res Social Adm Pharm 2022; 18:3612-3621. [DOI: 10.1016/j.sapharm.2022.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 01/01/2023]
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46
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Jones CW, Basner M, Mollicone DJ, Mott CM, Dinges DF. Sleep deficiency in spaceflight is associated with degraded neurobehavioral functions and elevated stress in astronauts on six-month missions aboard the International Space Station. Sleep 2022; 45:6505235. [PMID: 35023565 PMCID: PMC8919197 DOI: 10.1093/sleep/zsac006] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/09/2021] [Indexed: 01/14/2023] Open
Abstract
Astronauts are required to maintain optimal neurobehavioral functioning despite chronic exposure to the stressors and challenges of spaceflight. Sleep of adequate quality and duration is fundamental to neurobehavioral functioning, however astronauts commonly experience short sleep durations in spaceflight (<6 h). As humans embark on long-duration space exploration missions, there is an outstanding need to identify the consequences of sleep deficiency in spaceflight on neurobehavioral functions. Therefore, we conducted a longitudinal study that examined the sleep-wake behaviors, neurobehavioral functions, and ratings of stress and workload of N = 24 astronauts before, during, and after 6-month missions aboard the International Space Station (ISS). The computerized, Reaction SelfTest (RST), gathered astronaut report of sleep-wake behaviors, stress, workload, and somatic behavioral states; the RST also objectively assessed vigilant attention (i.e. Psychomotor Vigilance Test-Brief). Data collection began 180 days before launch, continued every 4 days in-flight aboard the ISS, and up to 90 days post-landing, which produced N = 2,856 RSTs. Consistent with previous ISS studies, astronauts reported sleeping ~6.5 h in-flight. The adverse consequences of short sleep were observed across neurobehavioral functions, where sleep durations <6 h were associated with significant reductions in psychomotor response speed, elevated stress, and higher workload. Sleep durations <5 h were associated with elevated negative somatic behavioral states. Furthermore, longer sleep durations had beneficial effects on astronaut neurobehavioral functions. Taken together, our findings highlight the importance of sleep for the maintenance of neurobehavioral functioning and as with humans on Earth, astronauts would likely benefit from interventions that promote sleep duration and quality.
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Affiliation(s)
| | | | | | | | - David F Dinges
- Corresponding author. David F. Dinges, Unit for Experimental Psychiatry, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 1013 Blockley Hall, 423 Guardian Drive, Philadelphia, PA, 19104, USA.
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47
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Yamazaki EM, Rosendahl-Garcia KM, Casale CE, MacMullen LE, Ecker AJ, Kirkpatrick JN, Goel N. Left Ventricular Ejection Time Measured by Echocardiography Differentiates Neurobehavioral Resilience and Vulnerability to Sleep Loss and Stress. Front Physiol 2022; 12:795321. [PMID: 35087419 PMCID: PMC8787291 DOI: 10.3389/fphys.2021.795321] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/02/2021] [Indexed: 01/04/2023] Open
Abstract
There are substantial individual differences (resilience and vulnerability) in performance resulting from sleep loss and psychosocial stress, but predictive potential biomarkers remain elusive. Similarly, marked changes in the cardiovascular system from sleep loss and stress include an increased risk for cardiovascular disease. It remains unknown whether key hemodynamic markers, including left ventricular ejection time (LVET), stroke volume (SV), heart rate (HR), cardiac index (CI), blood pressure (BP), and systemic vascular resistance index (SVRI), differ in resilient vs. vulnerable individuals and predict differential performance resilience with sleep loss and stress. We investigated for the first time whether the combination of total sleep deprivation (TSD) and psychological stress affected a comprehensive set of hemodynamic measures in healthy adults, and whether these measures differentiated neurobehavioral performance in resilient and vulnerable individuals. Thirty-two healthy adults (ages 27-53; 14 females) participated in a 5-day experiment in the Human Exploration Research Analog (HERA), a high-fidelity National Aeronautics and Space Administration (NASA) space analog isolation facility, consisting of two baseline nights, 39 h TSD, and two recovery nights. A modified Trier Social Stress Test induced psychological stress during TSD. Cardiovascular measure collection [SV, HR, CI, LVET, BP, and SVRI] and neurobehavioral performance testing (including a behavioral attention task and a rating of subjective sleepiness) occurred at six and 11 timepoints, respectively. Individuals with longer pre-study LVET (determined by a median split on pre-study LVET) tended to have poorer performance during TSD and stress. Resilient and vulnerable groups (determined by a median split on average TSD performance) showed significantly different profiles of SV, HR, CI, and LVET. Importantly, LVET at pre-study, but not other hemodynamic measures, reliably differentiated neurobehavioral performance during TSD and stress, and therefore may be a biomarker. Future studies should investigate whether the non-invasive marker, LVET, determines risk for adverse health outcomes.
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Affiliation(s)
- Erika M. Yamazaki
- Biological Rhythms Research Laboratory, Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, United States
| | | | - Courtney E. Casale
- Biological Rhythms Research Laboratory, Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, United States
| | - Laura E. MacMullen
- Division of Sleep and Chronobiology, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Adrian J. Ecker
- Division of Sleep and Chronobiology, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - James N. Kirkpatrick
- Division of Cardiology, Department of Medicine, University of Washington, Seattle, WA, United States
| | - Namni Goel
- Biological Rhythms Research Laboratory, Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, United States
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48
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Casario K, Howard K, Cordoza M, Hermosillo E, Ibrahim L, Larson O, Nasrini J, Basner M. Acceptability of the Cognition Test Battery in Astronaut and Astronaut-Surrogate Populations. ACTA ASTRONAUTICA 2022; 190:14-23. [PMID: 34803193 PMCID: PMC8601114 DOI: 10.1016/j.actaastro.2021.09.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Sustained high levels of astronaut cognitive performance are a prerequisite for mission success. A neuropsychological battery of 10 brief cognitive tests (Cognition) covering a range of cognitive domains was specifically developed for high performing astronauts to objectively assess cognitive performance. Extended mission durations require repeated cognitive testing and thus high acceptability of the Cognition software to the astronaut population. The aim of this qualitative study was to evaluate acceptability of Cognition to astronauts and astronaut surrogate populations. METHODS Cognition was administered repeatedly to N=87 subjects (mean age ±SD 35.1 ±8.7 years, 52.8% male) on a laptop or iPad across five individual studies on the International Space Station or in space analog environments on Earth. Following completion of each study, participants were interviewed regarding their experience using Cognition in a semi-structured debrief. Participant comments were analyzed using a qualitative conventional content analysis approach. RESULTS The majority of participants' comments (86.1%) were coded as positive or neutral in valence, with most positive comments relating to software usability, engagement, and overall design. Among the 10 Cognition tests, subjects liked the Visual Object Learning Test most (28 likes, 32.2% of participants), while the Emotion Recognition Test was liked least (44 dislikes, 50.6% of participants). Some subjects (36.8%) were frustrated with the level of difficulty of some of the 10 Cognition tests, especially during early administrations, which was by design to avoid ceiling effects in repeated administrations of high-performers. Technical difficulties were rare (20.7% of participants), and most often observed in environments with restricted internet access. Most participants (82.3% of those who commented) liked the feedback provided by Cognition after each test, which includes a graph showing performance history. CONCLUSION Cognition was found to be acceptable to astronaut and astronaut-surrogate populations across a variety of settings and mission durations. Participant feedback provided was used to further improve Cognition and increase its acceptability during sustained space missions.
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Affiliation(s)
- K Casario
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - K Howard
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - M Cordoza
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - E Hermosillo
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - L Ibrahim
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - O Larson
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - J Nasrini
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - M Basner
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
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Carlstrom LP, Eltanahy A, Perry A, Rabinstein AA, Elder BD, Morris JM, Meyer FB, Graffeo CS, Lundgaard I, Burns TC. A clinical primer for the glymphatic system. Brain 2021; 145:843-857. [PMID: 34888633 DOI: 10.1093/brain/awab428] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 11/02/2021] [Accepted: 11/07/2021] [Indexed: 11/14/2022] Open
Abstract
The complex and dynamic system of fluid flow through the perivascular and interstitial spaces of the central nervous system has new-found implications for neurological diseases. Cerebrospinal fluid movement throughout the CNS parenchyma is more dynamic than could be explained via passive diffusion mechanisms alone. Indeed, a semi-structured glial-lymphatic (glymphatic) system of astrocyte-supported extracellular perivascular channels serves to directionally channel extracellular fluid, clearing metabolites and peptides to optimize neurologic function. Clinical studies of the glymphatic network has to date proven challenging, with most data gleaned from rodent models and post-mortem investigations. However, increasing evidence suggests that disordered glymphatic function contributes to the pathophysiology of CNS aging, neurodegenerative disease, and CNS injuries, as well as normal pressure hydrocephalus. Unlocking such pathophysiology could provide important avenues toward novel therapeutics. We here provide a multidisciplinary overview of glymphatics and critically review accumulating evidence regarding its structure, function, and hypothesized relevance to neurological disease. We highlight emerging technologies of relevance to the longitudinal evaluation of glymphatic function in health and disease. Finally, we discuss the translational opportunities and challenges of studying glymphatic science.
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Affiliation(s)
- Lucas P Carlstrom
- Departments of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905 USA
| | - Ahmed Eltanahy
- Departments of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905 USA
| | - Avital Perry
- Departments of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905 USA
| | | | - Benjamin D Elder
- Departments of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905 USA
| | | | - Fredric B Meyer
- Departments of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905 USA
| | | | - Iben Lundgaard
- Departments of Experimental Medical Science, Lund University, Lund 228 11 Sweden.,Wallenberg Center for Molecular Medicine, Lund University, Lund 228 11 Sweden
| | - Terry C Burns
- Departments of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905 USA
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Mehta RK, Nuamah J. Relationship Between Acute Physical Fatigue and Cognitive Function During Orthostatic Challenge in Men and Women: A Neuroergonomics Investigation. HUMAN FACTORS 2021; 63:1437-1448. [PMID: 32686497 DOI: 10.1177/0018720820936794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND Postflight orthostatic challenge (OC), resulting from blood pooling in lower extremities, is a major health concern among astronauts that fly long-duration missions. Additionally, astronauts undergo physical demanding tasks resulting in acute fatigue, which can affect performance. However, the effects of concurrent OC and acute physical fatigue on performance have not been adequately investigated. OBJECTIVE The purpose of this study was to determine the relationship between acute physical fatigue and cognitive function during OC. METHODS Sixteen healthy participants performed the mental arithmetic task and psychomotor tracking tasks in the absence and presence of a prior 1-hour physically fatiguing exercise, on separate days under OC (induced via lower body negative pressure). We recorded task performances on the cognitive tests and prefrontal cortex oxygenation using functional near-infrared spectroscopy, along with physiological and subjective responses. RESULTS The introduction of the cognitive tasks during OC increased cerebral oxygenation; however, oxygenation decreased significantly with the cognitive tasks under the acute fatigue conditions, particularly during the tracking task and in males. These differences were accompanied by comparable task performances. DISCUSSION The findings suggest that mental arithmetic is a more effective countermeasure than psychomotor tracking under acute physical fatigue during OC. Whereas females did not show a significant difference in cerebral oxygenation due to task, males did, suggesting that it may be important to consider gender differences when developing countermeasures against OC.
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