The Effects of Nocturnal Hypoxemia on Cognitive Performance in Andean Highlanders DOI
Elizabeth V. Young, Matea A. Djokic, Erica C. Heinrich

et al.

High Altitude Medicine & Biology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

Many Andean highlanders exposed to chronic hypoxemia are susceptible excessive erythrocytosis (EE) and mountain sickness (CMS). Nocturnal is more marked than diurnal includes sustained intermittent components. The potential for cognitive impairments related nocturnal in this population has not been extensively studied, but improved understanding may provide opportunities the prevention of long-term effects EE CMS.

Language: Английский

The effects of long-term high-altitude exposure on cognition: A meta-analysis DOI
Rui Su,

Shurong Jia,

Niannian Zhang

et al.

Neuroscience & Biobehavioral Reviews, Journal Year: 2024, Volume and Issue: 161, P. 105682 - 105682

Published: April 19, 2024

Language: Английский

Citations

11

A narrative review of periodic breathing during sleep at high altitude: From acclimatizing lowlanders to adapted highlanders DOI Creative Commons
Alexander Patrician, James D. Anholm, Philip N. Ainslie

et al.

The Journal of Physiology, Journal Year: 2024, Volume and Issue: unknown

Published: March 27, 2024

Abstract Periodic breathing during sleep at high altitude is almost universal among sojourners. Here, in the context of acclimatization and adaptation, we provide a contemporary review on periodic altitude, explore whether this an adaptive or maladaptive process. The mechanism(s), prevalence role acclimatized lowlanders are contrasted with available data from adapted indigenous populations (e.g. Andean Tibetan highlanders). It concluded that (1) persists severity proportional to sleeping altitude; (2) does not seem coalesce poor quality such that, acclimatization, there appears be lengthening cycle length minimal impact average oxygen saturation; (3) highlanders appear demonstrate blunting breathing, compared lowlanders, comprising feature withstands negative influences chronic mountain sickness. These observations indicate no obvious consequences; however, attenuated adaptation therefore potentially reflects trait environment. image

Language: Английский

Citations

5

Mechanism, prevention and treatment of cognitive impairment caused by high altitude exposure DOI Creative Commons
Xin Chen, J K Zhang, Yuan Lin

et al.

Frontiers in Physiology, Journal Year: 2023, Volume and Issue: 14

Published: Sept. 4, 2023

Hypobaric hypoxia (HH) characteristics induce impaired cognitive function, reduced concentration, and memory. In recent years, an increasing number of people have migrated to high-altitude areas for work study. Headache, sleep disturbance, impairment from HH, severely challenges the physical mental health affects their quality life efficiency. This review summarizes manifestations, mechanisms, preventive therapeutic methods HH environment affecting function provides theoretical references exploring treating high altitude-induced impairment.

Language: Английский

Citations

13

Ferroptosis pathways: Unveiling the neuroprotective power of cistache deserticola phenylethanoid glycosides DOI Creative Commons
Xianxie Zhang,

Zuoxu Liu,

Zhihui Li

et al.

Journal of Ethnopharmacology, Journal Year: 2024, Volume and Issue: 333, P. 118465 - 118465

Published: June 27, 2024

Cistanche deserticola is a kind of parasitic plant living in the roots desert trees. It rare Chinese medicine, which has effect tonifying kidney Yang, benefiting essence and blood moistening intestinal tract. Cistache phenylethanoid glycoside (PGS), an active component found Ma, have potential tonifying, intellectual enhancing, neuroprotective effects. total capsule been marketed to treat vascular dementia disease. To identify renal, enhancing effects PGS explore exact targets mechanisms PGS. This study systematically investigated four types pathways leading ferroptosis through transcriptome, metabolome, ultrastructure molecular biology techniques explored mechanism by multiple synergistically exert on hypoxia. alleviated learning memory dysfunction pathological injury mice exposed hypobaric hypoxia attenuating hypoxia-induced hippocampal histopathological damage, impairing blood‒brain barrier integrity, increasing oxidative stress levels, expression cognitive proteins. reduced formation lipid peroxides improved upregulating GPX-4/SCL7A311 axis downregulating ACSL4/LPCAT3/LOX axis. also facilitating cellular Fe2+ efflux regulating mitochondrial transport effectively antagonized cell induced erastin (a inducer). demonstrated prevents hypoxic nerve pathways, achieved mice. provides theoretical basis for development application

Language: Английский

Citations

4

Longitudinal assessment of retinal and visual pathway electrophysiology and structure after high altitude exposure DOI
Xiaoling Shi, Minglu Li,

Xinjuan Zhang

et al.

Graefe s Archive for Clinical and Experimental Ophthalmology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

Language: Английский

Citations

0

Neurologische und psychiatrische Notfälle im Gebirge DOI
Katharina Hüfner, Marika Falla

Springer eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 341 - 365

Published: Jan. 1, 2025

Citations

0

The effects of sleep deprivation, acute hypoxia, and exercise on cognitive performance: A multi-experiment combined stressors study DOI Creative Commons
Thomas B. Williams, Juan I. Badariotti, Jo Corbett

et al.

Physiology & Behavior, Journal Year: 2023, Volume and Issue: 274, P. 114409 - 114409

Published: Nov. 16, 2023

Both sleep deprivation and hypoxia have been shown to impair executive function. Conversely, moderate intensity exercise is known improve In a multi-experiment study, we tested the hypotheses that would ameliorate any decline in function after i) three consecutive nights of partial (PSD) (Experiment 1) ii) isolated combined effects single night total (TSD) acute 2). Using rigorous randomised controlled crossover design, 12 healthy participants volunteered each experiment (24 total, 5 females). both experiments seven (2-choice reaction time, logical relations, manikin, mathematical processing, 1-back, 2-back, 3-back) tasks were completed at rest during 20-min semi-recumbent, cycling. Tasks following conditions: before PSD habitual normoxia (FIO2 = 0.12) one TSD Although on functions inconsistent, (regardless hypoxic status) reduced functions. Significantly, regardless or status, are improved an bout exercise. These novel data indicate improves performance TSD, status. The key determinants and/or mechanism(s) responsible for this improvement still need be elucidated. Future work should seek identify these mechanisms translate significant findings into occupational skilled settings.

Language: Английский

Citations

8

Cognitive performance during exposure to moderate normobaric hypoxia after sleep restriction: Relationship to physiological and stress biomarkers DOI
Pierre Fabries,

Anaïs Pontiggia,

Ulysse Comte

et al.

Physiology & Behavior, Journal Year: 2024, Volume and Issue: 287, P. 114666 - 114666

Published: Aug. 30, 2024

Language: Английский

Citations

3

High altitude adaptation, common high-altitude disorders and the effects of high altitude on mental health DOI Creative Commons
Johannes Burtscher, Katharina Hüfner, Martin Kopp

et al.

Sports Psychiatry, Journal Year: 2024, Volume and Issue: 3(4), P. 197 - 208

Published: Nov. 1, 2024

Abstract: Introduction: The human brain is a highly oxygen-dependent organ. Low environmental oxygen availability (e.g., hypobaric hypoxia at altitude) major challenge to the and numerous endogenous cellular systemic responses therefore are in place mitigate hypoxic stress. When dose of stress surpasses adaptive capabilities brain, cerebral forms high-altitude illnesses can develop, prevalence which increases with altitude. Hypoxia also trigger psychotic symptoms. Despite that, effects altitude exposures on people pre-existing mental disorders surprisingly scarcely investigated. Methods: In this narrative review we summarize literature brain’s put them context somatic consequences exposure from an interdisciplinary perspective. Results: We identify knowledge gaps high clinical relevance related safety exposures, particularly for individuals disorders. Conclusions: Taken together, research into vulnerability neuropsychiatric risk developing symptoms different populations (diseased, healthy, athletes) urgently needed provide appropriate evidence-based counselling treatment.

Language: Английский

Citations

1

Exercise performance reduction and preventive measures in highland sports. DOI

Boshen Li,

Jun Yang,

Peng Wang

et al.

PubMed, Journal Year: 2023, Volume and Issue: 48(10), P. 1464 - 1478

Published: Oct. 28, 2023

The plateau is a special environment with low pressure, oxygen, temperature, and high ultraviolet radiation. exercise performance of people on the generally reduced, which seriously affects life health living in entering plateau. In recent years, prevention treatment injury caused by altitude hypoxia has attracted wide attention. It shown that higher longer duration exercise, faster stationing, greater impact people's sports performance. Rapid entry into long-term stay have an explosive power, endurance fine operation. Advances medical technology enable various methods to be used acclimate environments. However, vitro intervention are costly, easy rebound possess limited effects. Therefore, drug obviously more economical choice. Chemical drugs increase efficiency improving ischemic hypoxic symptoms heart brain, increasing lung ventilation arterial oxygenation capacity, accelerating elimination adverse product accumulation after exercise. Single Chinese medicine, patent compound preparations can improve promoting body metabolism, muscle endurance, enhancing immunity, other mechanisms. Traditional medicine unique advantage application prospect damage.

Language: Английский

Citations

1