816 results match your criteria: "School of Aerospace Medicine[Affiliation]"

Enhancement of prefrontal functional connectivity under the influence of concurrent physical load during mental tasks.

Front Hum Neurosci

December 2024

Department of Aerospace Medical Equipment, School of Aerospace Medicine, Air Force Medical University, Xi'an, Shaanxi, China.

Backgrounds: Functional near-infrared spectroscopy (fNIRS) is widely used for the evaluation of mental workload (MWL), but it is not yet clear whether it is affected by physical factors during cognitive tasks. Therefore, the combined effects of physical and cognitive loads on hemodynamic features in the prefrontal cortex were evaluated.

Methods: Thirty-three eligible healthy male subjects were asked to perform three types of cognitive tasks (1-back, 2-back and 3-back).

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Six macroporous resins (MRs) were employed for the adsorption and desorption of neochlorogenic acid-enriched polyphenols from the European plum (NAPEP). X-5 exhibited the most significant neochlorogenic acid adsorption (99.62 %), desorption (44.

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Article Synopsis
  • The U.S. Air Force relies on remotely piloted aircraft (RPA) aircrew and support personnel for critical military missions, which can lead to increased stress and psychological health risks.
  • To counter these issues, a “combat-to-reconstitution” policy was trialed, aimed at giving RPA personnel more downtime for recovery.
  • A study involving 397 RPA personnel gathered mixed feedback on the policy's implementation and highlighted that factors like work overload contributed to stress and potential burnout, pointing to areas for improvement.
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The potential role of the SIRT1-Nrf2 signaling pathway in alleviating hidden hearing loss via antioxidant stress.

Cell Biol Int

December 2024

Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi'an, Shaanxi, China.

Hidden hearing loss (HHL) is characterized by normal audiometric thresholds but impaired auditory function, particularly in noisy environments. In vivo, we employed auditory brainstem response (ABR) testing and ribbon synapses counting to assess changes in mouse hearing function, and observed the morphology of hair cells through scanning electron microscopy. SRT1720 was administered to the cochlea via round window injection.

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Aim: High-altitude cardiac injury is a prevalent form of tissue damage resulting from hypobaric hypoxia (HH). MICU1 is a critical modulator of mitochondrial calcium uptake, with significant implications for the regulation of mitochondrial redox homeostasis. This study sought to examine the impact of MICU1 and elucidate the underlying mechanism in myocardial exposed to HH.

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A biosensory μvessel-gravity device for advancing vascular analysis in space medicine.

Biosens Bioelectron

January 2025

Key Laboratory of Aerospace Medicine of the Ministry of Education, School of Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, China; Key Laboratory of Hazard Assessment and Control in Special Operational Environment of the Ministry of Education, School of Preventive Medicine, Fourth Military Medical University, Xi'an 710032, China. Electronic address:

Studying vascular responses to microgravity (MG) poses significant challenges in space medicine due to the limitations of conventional cell culture and animal models. To address these challenges, we have developed an innovative biosensory μvessel-gravity device that integrates organ-on-a-chip technology, 3D printing, and a 3D clinostat. This device enables cell interaction monitoring and flow shear stress modeling, thereby allowing accurate blood vessel cell sensory to changed mechanical environment.

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Introduction: Follow-up testing is recommended three months after patients initially test positive with Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC). Follow-up testing adherence in the United States has been reported below one third of women, even in universally insured populations. We assessed both the positivity of CT and GC infections in female basic military trainees and the rates of follow-up testing for those who tested positive.

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Article Synopsis
  • A study investigated the relationship between COVID-19 vaccination and the risk of developing venous thrombosis or embolism (VTE) after infection, particularly examining the impact of booster shots.
  • The research analyzed data from Military Health System beneficiaries who tested positive for COVID-19 between 2020 and 2022, finding that vaccinated individuals had significantly lower odds of developing VTE compared to those unvaccinated.
  • Results indicated that the risk of post-COVID-19 VTE was particularly low during the Omicron variant era, and those receiving booster shots had an even greater reduction in VTE risk.
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Unlabelled: Antigen-based rapid diagnostic tests (Ag-RDTs) provide timely results, are simple to use, and are less expensive than molecular assays. Recent studies suggest that antigen-based testing aligns with virus culture-based results (a proxy of contagiousness at the peak viral phase of illness); however, the performance of Ag-RDTs for newer SARS-CoV-2 variants is unclear. In this study, we (i) assessed the performance of Ag-RDTs and diagnostic antibodies to detect a range of SARS-CoV-2 variants and (ii) determined whether Ag-RDT results correlated with culture positivity.

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2023 U.S. Department of Veterans Affairs and U.S. Department of Defense Clinical Practice Guideline for the Management of Headache.

Ann Intern Med

December 2024

Aeromedical Consultation Service, U.S. Air Force School of Aerospace Medicine, Wright-Patterson Air Force Base, Ohio; Wright State University Boonshoft School of Medicine, Dayton, Ohio; and Uniformed Services University F. Edward Hebert School of Medicine, Bethesda, Maryland (A.W.F.).

Description: Headache medicine and therapeutics evidence have been rapidly expanding and evolving since the 2020 U.S. Department of Veterans Affairs (VA) and U.

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Cardiac Urea Cycle Activation by Time-Restricted Feeding Protects Against Pressure Overload-Induced Heart Failure.

Adv Sci (Weinh)

December 2024

Key Laboratory of Ministry of Education, School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China.

Heart failure is a leading cause of mortality worldwide, necessitating the development of novel therapeutic and lifestyle interventions. Recent studies highlight a potential role of time-restricted feeding (TRF) in the prevention and treatment of cardiac diseases. Here, it is found that TRF protected against heart failure at different stages in mice.

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Role and mechanism of histone demethylase PHF8 in weightlessness osteoporosis.

Exp Cell Res

October 2024

Department of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China. Electronic address:

Article Synopsis
  • Weightlessness osteoporosis is a significant issue in manned spaceflight, leading to continuous bone deterioration with limited protective measures.
  • This study focuses on how PHF8 regulates osteoporosis by examining its expression in bone marrow mesenchymal stem cells (BMSCs) under simulated weightlessness, including ground-based microgravity and tail suspension models.
  • Findings indicate that simulated weightlessness negatively affects BMSC functions, such as proliferation and osteogenesis, while increasing apoptosis; however, overexpressing PHF8 can mitigate these effects, suggesting it as a potential target for osteoporosis treatment.
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Article Synopsis
  • The study examined 595 SARS-CoV-2 sequences from Military Health System beneficiaries to assess how vaccination affected viral diversity from December 2020 to April 2022.
  • Results indicated that vaccination had limited influence on the diversity of the SARS-CoV-2 spike protein and showed little evidence of a significant sieve effect among major variants.
  • The findings suggest that during periods of rapid variant replacement, other factors overshadowed the influence of vaccination on viral diversity, and caution is needed when using sieve analysis methods in non-clinical trial settings.
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Article Synopsis
  • * The study found that neutralization responses from human and hamster sera before the Omicron variant were highly correlated, suggesting that hamster sera can effectively substitute for human sera in understanding variant differences.
  • * Although the XBB.1.5 booster led to broad neutralization against XBB sub-lineage variants, a significant decrease in effectiveness was noted against the newer JN.1 variant, indicating the potential need for vaccine updates to improve antibody coverage.
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Article Synopsis
  • * Researchers created nanoparticles combining HA and alpha-ketoglutarate (αKG) to enhance stability and release in the knee joint, which showed improved pain relief, mobility, and less cartilage damage in mouse models of OA.
  • * The study suggests these HA-αKG nanoparticles could be a promising treatment for OA, benefiting patients by promoting cartilage health and reducing stress in cartilage cells, potentially leading to quick clinical use.
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The role of GDF15 in attenuating noise-induced hidden hearing loss by alleviating oxidative stress.

Cell Biol Toxicol

September 2024

Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Air Force Medical University, Xi'an, 710032, Shaanxi, China.

Noise-induced hidden hearing loss (HHL) is a newly uncovered form of hearing impairment that causes hidden damage to the cochlea. Patients with HHL do not have significant abnormalities in their hearing thresholds, but they experience impaired speech recognition in noisy environments. However, the mechanisms underlying HHL remain unclear.

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Building on our strategic framework and operational model, we will discuss findings from our ethnographic study entitled, "The Impact of Catastrophic Injury Exposure on Resilience in Special Operations Surgical Teams (SOST)." Our goal is to establish that medical-martial creativity supports Special Operation Forces (SOF) medics' ability to fluidly modulate pressure amid real-time military medical decision-making in austere environments. We will use qualitative quotes to explore how SOST medics express medical-martial creativity in support of unconventional resilience.

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Background: Firearm injuries are the leading cause of death among children aged 0 to 17 years in the United States.

Objective: To examine the factors associated with recurrent firearm injury among children who presented with acute (index) nonfatal firearm injury in the St. Louis region.

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Aerobic glycolysis is critical for tumor growth and metastasis. Previously, we have found that the overexpression of the inhibitor of growth 5 (ING5) inhibits lung cancer aggressiveness and epithelial-mesenchymal transition (EMT). However, whether ING5 regulates lung cancer metabolism reprogramming remains unknown.

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Wildlife fecal samples were collected across two Air Force installations to evaluate the effectiveness of commercially available DNA and RNA extraction kits. Four DNA kits, two DNA/RNA kits and one RNA only kit were used. Sample extracts were evaluated on nucleic acid concentration, TapeStation DNA or RNA Integrity Number values and presence of PCR inhibitors.

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JOURNAL/nrgr/04.03/01300535-202507000-00032/figure1/v/2024-09-09T124005Z/r/image-tiff A microgravity environment has been shown to cause ocular damage and affect visual acuity, but the underlying mechanisms remain unclear. Therefore, we established an animal model of weightlessness via tail suspension to examine the pathological changes and molecular mechanisms of retinal damage under microgravity.

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25-Hydroxycholesterol inhibits Hantavirus infection by reprogramming cholesterol metabolism.

Free Radic Biol Med

November 2024

Department of Microbiology, School of Preclinical Medicine, Air Force Medical University: Fourth Military Medical University, Xi'an, Shaanxi, 710032, China. Electronic address:

Article Synopsis
  • Hantavirus causes severe diseases with high mortality rates, and current treatments are lacking; however, Type I interferon has shown promise when administered early.
  • The study reveals that Hantaan virus (HTNV) increases the expression of the enzyme cholesterol 25-hydroxylase (CH25H), which then helps inhibit HTNV infection through cholesterol regulation.
  • It suggests that 25-hydroxycholesterol (25HC) and cholesterol-lowering statins could be repurposed as effective antiviral treatments against hantavirus infections, highlighting the potential of targeting cholesterol metabolism in developing new therapies.
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Article Synopsis
  • Organizations today are complex and constantly evolving, with the Military Health System undergoing significant changes to improve healthcare delivery, including a transition to the Air Force Medical Command (AFMEDCOM) structure.
  • In February 2024, a diverse group of stakeholders convened to explore medical education and training for the Air Force using systems theory and ecosystem mapping, aiming to create a more resilient organizational model.
  • The paper discusses the ecosystem approach's theoretical framework and its application in restructuring the Air Force Medical Service (AFMS) for better stakeholder relationships and re-optimization in response to challenges like Great Power Competition.
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We sequenced and genotyped severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza, adenovirus, and respiratory syncytial virus, among other pathogens, from residual anterior nasal swabs self-collected for rapid SARS-CoV-2 antigen testing at the US Naval Academy. This is a key proof-of-concept for an acute respiratory infection surveillance approach, which could leverage prevalent SARS-CoV-2 antigen self-testing.

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A Baseline Model of PTSD From the ACES Cohort.

Mil Med

August 2024

59th Medical Wing/Science and Technology, Joint Base San Antonio-Lackland Air, Force Base, TX 78236, USA.

Introduction: Post-traumatic stress disorder (PTSD) is a primary military psychiatric condition with complex etiology including strong genetic and/or environmental influences. Environmental influences and demographics can play a role in supporting underlying genetic traits for clinical utility evaluation as risk modifying factors. We are undertaking an IRB approved study to evaluate polygenic scores of PTSD risk in the adverse childhood experience and serotonin (ACES) transporter cohort.

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