Results 61 to 70 of about 34,892 (283)

Comprehensive viewpoints on heart rate variability at high altitude

Clinical and Experimental Hypertension, 2023
Objectives Hypoxia is a physiological state characterized by reduced oxygen levels in organs and tissues. It is a common clinicopathological process and a major cause of health problems in highland areas.  Heart rate variability (HRV) is a measure of the
Jun Hou, Keji Lu, Peiwen Chen, Peng Wang, Jing Li, Jiali Yang, Qing Liu, Qiang Xue, Zhaobing Tang, Haifeng Pei   +9 more
doaj   +1 more source

Respiratory parameters at varied altitudes in intermittent mining work [PDF]

, 2017
Objectives: Workers in the mining industry in altitude are subjected to several risk factors, e.g., airborne silica and low barometric pressure. The aim of this study has been to assess the risks for this work category, evaluating single risk factors as ...
Bacaloni, Alessandro, Insogna, Susanna, Sinibaldi, Federica, Steffanina, Alessia, Zamora Saà, Margarita Cecilia   +4 more
core   +2 more sources

Elevated Hemoglobin Levels and Risk of ST‐Segment Elevation Myocardial Infarction in High‐Altitude Acute Coronary Syndrome: A Retrospective Analysis

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background High‐altitude populations typically exhibit elevated hemoglobin (Hb) levels due to chronic hypoxic exposure; however, the impact of this elevation on the risk of ST‐segment elevation myocardial infarction (STEMI) remains unclear. Existing evidence is primarily derived from low‐altitude populations and cannot be directly extrapolated
Jing Li, Lin‐Feng Liu, Gusang Lamu, Yang Jin, Gesang Gawa, Zhen‐Long Chang, Xiao‐Xia Liu, Zhen‐Zhong Yang, Gesang Luobu, Baima Lamu, Dawa Ciren   +10 more
wiley   +1 more source

Physiological aspects of altitude training and the use of altitude simulators [PDF]

Srpski Arhiv za Celokupno Lekarstvo, 2005
Altitude training in various forms is widely practiced by athletes and coaches in an attempt to improve sea level endurance. Training at high altitude may improve performance at sea level through altitude acclimatization, which improves oxygen transport ...
Ranković Goran, Radovanović Dragan
doaj   +1 more source

Effect of Acetazolamide and Zoledronate on Simulated High Altitude-Induced Bone Loss

Frontiers in Endocrinology, 2022
Exposure to hypobaric hypoxia at high altitude puts mountaineers at risk of acute mountain sickness. The carbonic anhydrase inhibitor acetazolamide is used to accelerate acclimatization, when it is not feasible to make a controlled and slow ascend ...
Mikkel Bo Brent, Ulf Simonsen, Jesper Skovhus Thomsen, Annemarie Brüel   +3 more
doaj   +1 more source

Variants of the low oxygen sensors EGLN1 and HIF-1AN associated with acute mountain sickness. [PDF]

, 2014
Two low oxygen sensors, Egl nine homolog 1 (EGLN1) and hypoxia-inducible factor 1-α inhibitor (HIF-1AN), play pivotal roles in the regulation of HIF-1α, and high altitude adaption may be involved in the pathology of acute mountain sickness (AMS).
Huang, Lan, Jin, Jun, Li, Huijie, Qin, Jun, Zhang, Enhao, Zhang, Jihang   +5 more
core   +3 more sources

Powerful yet challenging: mechanistic niche models for predicting invasive species potential distribution under climate change

Ecography, EarlyView.
Risk assessments of invasive species present one of the most challenging applications of species distribution models (SDMs) due to the fundamental issues of distributional disequilibrium, niche changes, and truncation. Invasive species often occupy only a fraction of their potential environmental and geographic ranges, as their spatiotemporal dynamics ...
Erola Fenollosa, Sean E. H. Pang, Natalie J. Briscoe, Antoine Guisan, Roberto Salguero-Gómez   +4 more
wiley   +1 more source

Understanding pre‐eclampsia and fetal growth restriction at high altitude: A narrative review

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Pre‐eclampsia (PE) and fetal growth restriction (FGR) are among the leading causes of maternal and perinatal morbidity and mortality worldwide. Both conditions are more frequent and severe at high altitudes due to physiological changes in oxygen availability and vascular adaptation.
Víctor S. Rangel, Juliana Malagón Castillo, Juan David Duarte, Mariana Abril Barreto, Alejandra Vivas Ramirez, José Alejandro Daza, Ángela María Ruiz‐Sternberg   +6 more
wiley   +1 more source

Phosphodiesterase Type 5 Inhibitors, Sport and Doping [PDF]

, 2017
Phosphodiesterase type 5 inhibitors (PDE5i) (e.g., sildenafil, tadalafil, vardenafil, and avanafil) are drugs commonly used to treat erectile dysfunction, pulmonary arterial hypertension, and benign prostatic hyperplasia.
Borrione, Paolo, CECI GALANOS, Roberta, Crescioli, Clara, Di Luigi, Luigi, Duranti, Guglielmo, Sabatini, Stefania, Sansone, Andrea, Sansone, Massimiliano, Sgrò, Paolo   +8 more
core   +1 more source

The role of the gut microbiome in the regulation of high‐altitude adaptation

iMeta, EarlyView.
This study is the first to elucidate mechanisms of high‐altitude adaptation from the perspective of the rumen ecosystem by using indigenous yaks and Holstein cows that have lived at high altitude since birth as comparative models. Through a systematic comparison of their rumen ecology using multi‐omics approaches—including rumen metagenomics ...
Xinyu Zhang, Senlin Zhu, Michael Kreuzer, Shoukun Ji, Wei Wang, Yanliang Bi, Shengli Li   +6 more
wiley   +1 more source