In recent years, there has been an increasing interest in space exploration, supported by the accelerated technological advancements in the field. This has led to a new potential environment that humans could be exposed to in the very near future, and therefore an increasing request to evaluate the impact this may have on our body, including health risks associated with this endeavor. A critical component in regulating the human pathophysiology is represented by the cardiovascular system, which may be heavily affected in these extreme environments of microgravity and radiation. This mini review aims to identify the impact of microgravity and radiation on the cardiovascular system. Being able to understand the effect that comes with deep space explorations, including that of microgravity and space radiation, may also allow us to get a deeper understanding of the heart and ultimately our own basic physiological processes. This information may unlock new factors to consider with space exploration whilst simultaneously increasing our knowledge of the cardiovascular system and potentially associated diseases.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8586646 | PMC |
http://dx.doi.org/10.3389/fcell.2021.750775 | DOI Listing |
Free Radic Biol Med
December 2024
Institute of Rocket Force Medicine, Third Military Medical University (Army Medical University), 400038, Chongqing, China; State Key Laboratory of Trauma and Chemical Poisoning, Third Military Medical University (Army Medical University), 400038, Chongqing, China. Electronic address:
Spaceflight-induced osteoporosis (SFOP) is a detrimental healthcare consequence during spaceflight. Weightlessness and ionizing radiation were main environmental factors that contribute to SFOP, especially in the manned deep space voyages. However, currently there is scarce effective method to treat SFOP.
View Article and Find Full Text PDFNPJ Microgravity
December 2024
University of Colorado Anschutz Medical Campus, Department of Obstetrics & Gynecology, Division of Reproductive Sciences, Aurora, CO, USA.
The effects of galactic cosmic radiation on reproductive physiology remain largely unknown. We determined the impact of near-continuous low-dose-rate Californium-252 neutron irradiation (1 mGy/day) as a space-relevant analog on litter size and number of resorptions at embryonic day (E) 12.5 (n = 19 radiated dams, n = 20 controls) and litter size, number of resorptions, fetal growth, and placental signaling and transcriptome (RNA sequencing) at E18.
View Article and Find Full Text PDFNPJ Microgravity
December 2024
Department of Surgery, Hypertension and Vascular Research Center, Wake Forest University School of Medicine, Winston-Salem, NC, USA.
Men and women have different cardiovascular responses to spaceflight; however, few studies have focused on direct comparisons between sexes. We investigated the mechanisms of aortic stiffening in socially and sexually mature 20-week-old male and female Sprague Dawley (SD) rats exposed to hindlimb unloading (HLU) for 14 days. Pulse wave velocity (PWV) was greater in the aortic arch of females after HLU versus control females (n = 6-8).
View Article and Find Full Text PDFCureus
November 2024
Obstetrics and Gynecology, Employees' State Insurance Corporation (ESIC) Medical College and Hospital, Faridabad, Faridabad, IND.
As space travel evolves from brief missions to longer expeditions, and with the rise of space tourism, there is increasing interest in understanding how space travel affects human reproductive physiology and the feasibility of procreation in space. Space travel presents various potential hazards to reproductive health such as exposure to ionizing radiation, exposure to changes in gravity, psychological stress, and disruptions to the endocrine and urogenital systems, as well as the circadian rhythm. This article explores how cosmic radiation and microgravity impact both female and male gametogenesis, embryogenesis, and reproductive physiology.
View Article and Find Full Text PDFFront Physiol
November 2024
Radiation Biosciences laboratory, Medical College of Wisconsin, Milwaukee, WI, United States.
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