Results 141 to 150 of about 279,349 (317)

Mechanisms and drug therapy of pulmonary hypertension at high altitude

, 2013
Pulmonary vasoconstriction represents a physiological adaptive mechanism to high altitude. If exaggerated, however, it is associated with important morbidity and mortality.
Allemann, Yves, Scherrer, Urs, Rimoldi, S.F., Sartori, Claudio, Rexhaj, E., Rexhaj, Emrush, Sartori, C., Scherrer, U., Allemann, Y., Rimoldi, Stefano   +9 more
core   +1 more source

High altitude polycythemia and its maladaptive mechanisms: an updated review

Frontiers in Medicine
High altitude polycythemia is a maladaptation of highlanders exposed to hypoxic environment, leading to high blood viscosity and severe cardiorespiratory dysfunction.
Shijie Tang, Shijie Tang, Shijie Tang, Wenwen Zhou, Wenwen Zhou, Ling Chen, Ling Chen, Hui Yan, Hui Yan, Lei Chen, Lei Chen, Lei Chen, Fengming Luo, Fengming Luo, Fengming Luo   +14 more
doaj   +1 more source

Mid‐Domain Effect and Wooded Habitat Shape Mediterranean Reptile Communities

Biological Diversity, EarlyView.
Analyzing a large number of reptiles observed across protected areas in Central Italy, we tested whether the mid‐domain effect explains hump‐shaped richness–elevation patterns. Species richness was best predicted by the combined influence of geometric constraints and woodland cover, revealing two contrasting species clusters and offering a robust ...
Daniele Dendi, Lauren De Nardi, Giovanni Amori, Luca Luiselli   +3 more
wiley   +1 more source

Adaptive Genomic Divergence Across Altitudes in Capsella bursa‐pastoris

Biological Diversity, EarlyView.
Genomic divergence was observed between high‐altitude and low‐altitude populations of Capsella bursa‐pastoris in China, consistent with an important role of ecological factors. Candidate adaptive loci associated with enhanced energy metabolism, photoprotection, and growth plasticity under altitudinal stress were identified.
Lu Liu, Jia Li, Xin Liu, Xue‐Jun Ge, Hui‐Run Huang   +4 more
wiley   +1 more source

Delivery during Exercise at Altitude

, 2009
Hypoxia-induced hyperventilation is critical to improve blood oxygenation, particularly when the arterial Po2 lies in the steep region of the O2 dissociation curve of the hemoglobin (ODC).
Carsten Lundby, Lundby, Carsten, José A. L. Calbet, Calbet, José A.L.   +3 more
core   +1 more source

Correction to “Evolution and Domestication of a Novel Biosynthetic Gene Cluster Contributing to the Flavonoid Metabolism and High‐Altitude Adaptability of Plants in the Fagopyrum Genus”

Advanced Science, EarlyView.
wiley   +1 more source

Host, vector, and parasite dynamics: exploring intrinsic and extrinsic factors shaping tick‐borne filarial nematode transmission

Biological Reviews, EarlyView.
ABSTRACT Tick‐borne filarial nematodes are a complex and understudied group of parasites that rely on ticks for transmission in vertebrates. This review examines how intrinsic and extrinsic factors may influence the successful transmission of filarial nematodes in tick vectors, drawing insights from extensively studied haematophagous dipteran vector ...
Oluwaseun D. Ajileye, Gabriel L. Hamer, Sarah A. Hamer, Guilherme G. Verocai, Jessica E. Light   +4 more
wiley   +1 more source

Incidence of High Altitude Illnesses among Unacclimatized Persons Who Acutely Ascended to Tibet

, 2010
Ren, Yusheng, Zhongming Fu, Weimin Shen, Ping Jiang, Yanlin He, Shaojun Peng, Zonggui Wu, and Bo Cui. Incidence of high altitude illnesses among unacclimatized persons who acutely ascended to Tibet. High Alt. Med. Biol.
Zhongming Fu, Ping Jiang, Jiang, Ping, Bo Cui, He, Yanlin, Wu, Zonggui, Ren, Yusheng, Peng, Shaojun, Zonggui Wu, Weimin Shen, Yusheng Ren, Shen, Weimin, Shaojun Peng, Cui, Bo, Fu, Zhongming, Yanlin He   +15 more
core   +1 more source

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

Biological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen, Mohamed Khalil Meliane, Zachery B. Holmes, Karl E. Miller, William J. Barichivich, Emilie Dedeban, Alex Furst, Miranda Imeri, Peyton E. Niebanck, Samantha Nunn, Kailee Pearson, Nicole Rita, Brier Ryver, Dakotah Shaffer, Susan C. Walls, E. Hance Ellington   +15 more
wiley   +1 more source

Flight of the dragons: a global review of migration in Odonata

Biological Reviews, EarlyView.
ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund, Myles Menz, Jason W. Chapman, Alexander Hayward   +3 more
wiley   +1 more source