Evaluation of pulmonary artery pressure, blood indices, and myocardial microcirculation in rats returning from high altitude to moderate altitude DOI Creative Commons
Chunlong Yan, Jinfeng Ma,

Dengfeng Tian

et al.

European Radiology Experimental, Journal Year: 2024, Volume and Issue: 8(1)

Published: Nov. 20, 2024

Abstract Background To investigate changes in pulmonary artery pressure (PAP), blood indices, and myocardial microcirculation rats returning from high altitude (HA) to moderate (MA). Methods Forty 4-week-old male Sprague-Dawley were randomly divided into four groups with ten each group. One group was transported the MA area (MA-group), other three HA (HA-group-A, HA-group-B, HA-group-C). After 28 weeks of age, for 0 days, 10 20 respectively. PAP, routine tests, computed tomography perfusion indices measured. Results Compared MA-group, body weight HA-groups decreased ( p < 0.05), PAP HA-group-A HA-group-B increased 0.05). In groups, initially then decreased. red cells (RBC), hemoglobin (HGB), hematocrit (HCT) HA-group-A, RBC, HGB, HCT gradually 0.05) while MCV PLT HA-group-C group, flow (BF) volume (BV) TTP first BF BV Pathological results showed that fiber arrangement disordered, cell space widened Conclusion parameters, exhibited significant changes. Relevance statement This study provides an experimental basis understanding physiological pathological mechanisms during process deacclimatization offers new insights prevention treatment syndrome. Key Points raised a real plateau environment. Myocardial detected by CT imaging. The unacclimated deacclimated hyperperfusion Graphical

Language: Английский

A Review of Cognitive Control: Advancement, Definition, Framework, and Prospect DOI Creative Commons
Zhen–Fei Liu, Xunhe Yin

Actuators, Journal Year: 2025, Volume and Issue: 14(1), P. 32 - 32

Published: Jan. 15, 2025

The operational environments of engineering systems are becoming increasingly complex and require automatic control to be more intelligent. Cognitive extends the domain intelligent control, whereby cognitive science theories applied guide design make them conform human cognition paradigm behave like a real person, hence improving physical performance. has been investigated in several fields, but comprehensive review covering all these fields yet provided any paper. This paper first presents development related works. Then, relationship between is analyzed, based on which definition framework summarized from perspective automation control. then compared with similar concepts, such as radio radar, methods, robust adaptive Finally, main issues, research directions, prospects discussed. We expect that this will contribute

Language: Английский

Citations

0

Virtual reality tourism as a therapeutic tool: Assessing the well-being benefits of repeated restorative environment exposures for individuals with GAD DOI
Fumei Guo, Mimi Li, Guyang Lin

et al.

Tourism Management, Journal Year: 2025, Volume and Issue: 110, P. 105178 - 105178

Published: March 12, 2025

Language: Английский

Citations

0

Effects of Acute Hypoxic Exposure in Simulated Altitude in Healthy Adults on Cognitive Performance: A Systematic Review and Meta-Analysis DOI Creative Commons
María Ramírez-delaCruz, Alfredo Bravo-Sánchez, Jorge Sánchez-Infante

et al.

Biology, Journal Year: 2024, Volume and Issue: 13(10), P. 835 - 835

Published: Oct. 17, 2024

The neurocognitive response following hypoxia has received special interest. However, it is necessary to understand the impact of acute hypoxic exposure induced by simulated altitude on cognitive performance. This study aimed determine effects in healthy adults reaction time, accuracy, memory, and attention. Five electronic databases were searched. inclusion criteria were: (1) Experimental studies involving a intervention air generator performance; (2) Conducted (males and/or females; aged 18–50 years) without pathologies or health/mental problems. Four meta-analyses performed: (3) (4) Finally, 37 included meta-analysis. Hypoxia detrimental time (standard mean difference (SMD) −0.23; 95% confidence interval (CI) −0.38–−0.07; p = 0.004), accuracy (SMD −0.20; CI −0.38–−0.03; 0.02), memory −0.93; CI: −1.68–−0.17; 0.02). Nevertheless, attention was not affected during −0.06; −0.23–0.11; 0.47). Acute controlled lab conditions appears be performance, specifically memory.

Language: Английский

Citations

1

The recovery of decreased executive attention in Tibetan migrants at high‐altitude DOI

Nian‐Nian Wang,

Sifang Yu,

Dongmei Chen

et al.

European Journal of Neuroscience, Journal Year: 2024, Volume and Issue: 60(10), P. 6525 - 6542

Published: Oct. 18, 2024

Abstract Attention is one of the basic cognitive functions sensitive to high altitude, and most studies have focussed on exposure times approximately 3 years; however, it unclear how attention changes in migrants who lived worked at altitude for nearly 20 years. We explored dynamics attentional networks neurophysiological mechanisms over 3–20 years using Attentional Network Test combined with Electrocardiograph Electroencephalography found a consistent quadratic correlation between executive control efficiency, P3 amplitude heart rate variability (HRV), decrease followed by an increase/relative stability, 10 being breakpoint. However, neither linear nor trajectories were observed alerting orienting network. Mediation analysis revealed that mediated increase efficiency time depends Correlations HRV suggest U‐shaped may be related body homeostasis maintained autonomic nervous system, serve as marker migrants' adaptation/recovery from high‐altitude exposure.

Language: Английский

Citations

0

Evaluation of pulmonary artery pressure, blood indices, and myocardial microcirculation in rats returning from high altitude to moderate altitude DOI Creative Commons
Chunlong Yan, Jinfeng Ma,

Dengfeng Tian

et al.

European Radiology Experimental, Journal Year: 2024, Volume and Issue: 8(1)

Published: Nov. 20, 2024

Abstract Background To investigate changes in pulmonary artery pressure (PAP), blood indices, and myocardial microcirculation rats returning from high altitude (HA) to moderate (MA). Methods Forty 4-week-old male Sprague-Dawley were randomly divided into four groups with ten each group. One group was transported the MA area (MA-group), other three HA (HA-group-A, HA-group-B, HA-group-C). After 28 weeks of age, for 0 days, 10 20 respectively. PAP, routine tests, computed tomography perfusion indices measured. Results Compared MA-group, body weight HA-groups decreased ( p < 0.05), PAP HA-group-A HA-group-B increased 0.05). In groups, initially then decreased. red cells (RBC), hemoglobin (HGB), hematocrit (HCT) HA-group-A, RBC, HGB, HCT gradually 0.05) while MCV PLT HA-group-C group, flow (BF) volume (BV) TTP first BF BV Pathological results showed that fiber arrangement disordered, cell space widened Conclusion parameters, exhibited significant changes. Relevance statement This study provides an experimental basis understanding physiological pathological mechanisms during process deacclimatization offers new insights prevention treatment syndrome. Key Points raised a real plateau environment. Myocardial detected by CT imaging. The unacclimated deacclimated hyperperfusion Graphical

Language: Английский

Citations

0