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Articles 1 - 6 of 6
Full-Text Articles in Aerospace Medicine
Assessing The Impact Of Various Factors On Hypoxic Response, Reese Kim, Allysa Hayden
Assessing The Impact Of Various Factors On Hypoxic Response, Reese Kim, Allysa Hayden
Discovery Day - Daytona Beach
Hypoxia is a condition in which the body’s tissues are deprived of oxygen and has deleterious effects on cognition, perception, and performance. Hypoxia has a myriad of symptoms such as euphoria, difficulty concentrating, headache, fatigue, nausea, dizziness, tunnel vision, and more. Outward signs of hypoxia include cyanosis (blueing of the fingertips and lips), tremors, loss of coordination, pallor, and complexion change, and can be used to notice the onset of hypoxia in others. Many factors are known to contribute to the manifestation of hypoxia, namely altitude, exposure duration, and certain physiological conditions such as heart problems and low blood flow …
Using H2ax As A Biological Indicator To Assess Radiation-Induced Bone Loss In Microgravity Environments, Angeline Nichols, Enoch Tonkin, Ana Lobaton, Jahzara Hope
Using H2ax As A Biological Indicator To Assess Radiation-Induced Bone Loss In Microgravity Environments, Angeline Nichols, Enoch Tonkin, Ana Lobaton, Jahzara Hope
Discovery Day - Daytona Beach
Long-duration space missions expose astronauts to microgravity and chronic low-dose radiation, both greatly impacting skeletal health. While mechanical unloading in microgravity is a well-known driver of bone loss, recent evidence indicates that radiation independently contributes to bone deterioration by increasing osteoclast activity, which remodel bone faster, and suppress osteoblast differentiation. H2AX, a histone protein that rapidly phosphorylates into y-H2AX in response to the double strands of DNA breaking, has emerged as a sensitive biological marker for radiation exposure. This project aims to determine the efficacy of H2AX in the presence of radiation-induced DNA damage in bone marrow, compared to microgravity …
Analysis Of Non-Thermal Plasma’S Effects On Melanoma: A Biological Examination, Violet Ochrietor, Mia Nilsen, Arden Rodriguez, Ally Schwennesen
Analysis Of Non-Thermal Plasma’S Effects On Melanoma: A Biological Examination, Violet Ochrietor, Mia Nilsen, Arden Rodriguez, Ally Schwennesen
Discovery Day - Daytona Beach
Melanoma is a serious form of skin cancer that may present as a real and increased risk during long-term spaceflight due to radiation exposure and limited treatment options. Non-Thermal Plasma (NTP) has emerged as a promising therapeutic tool due to its ability to generate reactive oxygen and nitrogen species (ROS and RNS) that affect cellular functioning without causing temperature related damage to surrounding tissues. This project investigates the effects of NTP on melanoma cells through a biological examination of exposure time, frequency of plasma, and cellular growth conditions. Human melanoma cells and keratinocytes will be cultured and exposed to the …
The Effect Of Snris On Pilot Reaction Time In Simulated Flight, Isabella Owen, Aidan Roach, Micah Henry, Casey Tressler
The Effect Of Snris On Pilot Reaction Time In Simulated Flight, Isabella Owen, Aidan Roach, Micah Henry, Casey Tressler
Discovery Day - Daytona Beach
Many aviators who are prescribed serotonin and norepinephrine reuptake inhibitors (SNRI) or selective serotonin reuptake inhibitors (SSRI) to treat mental health disorders such as major depressive disorder, general anxiety disorder, or post-traumatic stress disorder must halt their duties for a set amount of time. This is due to aviation authorities having data that suggests SNRIs and SSRIs lead to inhibitions in mental processes that can cause crashes or death. Most of the research that has been conducted examined the effects of SSRIs on individuals without mental health disorders in non-flight settings. This study will explore the effect SNRIs have on …
Antagomir Treatment For Deep-Space Simulated Changes In The Liver Of Mice, Natalie P. Hayslip
Antagomir Treatment For Deep-Space Simulated Changes In The Liver Of Mice, Natalie P. Hayslip
Honors Undergraduate Theses
With the start of NASA’s Artemis program, astronauts will soon leave the protection of Earth’s magnetosphere. Previous studies have established a theme of liver dysregulation associated with the harmful radiation and microgravity experienced in deep space. MicroRNAs (miRNAs) are key regulators of many of the pathologies observed during and after spaceflight, including hepatic fibrosis, making them strong potential biomarkers and therapeutic targets. Therefore, in the present study we investigated the effects of simulated microgravity, galactic cosmic radiation (GCR), and solar particle events (SPE) on miRNAs and mRNAs involved in the TGF-β signaling pathway, a key regulator of fibrosis, senescence, and …
Enabling Human Space Exploration Missions Through Progressively Earth Independent Medical Operations (Eimo), Dana R Levin, Jon Steller, Arian Anderson, Jay Lemery, Benjamin Easter, David C Hilmers, Kris R Lehnhardt
Enabling Human Space Exploration Missions Through Progressively Earth Independent Medical Operations (Eimo), Dana R Levin, Jon Steller, Arian Anderson, Jay Lemery, Benjamin Easter, David C Hilmers, Kris R Lehnhardt
Faculty, Staff and Students Publications
Goal: Current Space Medicine operations depend on terrestrial support to manage medical events. As astronauts travel to destinations such as the Moon, Mars, and beyond, distance will substantially limit this support and require increasing medical autonomy from the crew. This paper defines Earth Independent Medical Operations (EIMO) and identifies key elements of a conceptual EIMO system. Methods: The NASA Human Research Program Exploration Medical Capability Element held a 2-day conference at Johnson Space Center in Houston, TX with NASA experts representing all aspects of Space Medicine. Results: EIMO will be a process enabling progressively resilient deep space exploration systems and …