Results 91 to 100 of about 34,730 (280)

High‐Altitude Adaptation of Frogs (Case Study: Nanorana parkeri): From Physiological Phenotypes to AltitudeOmics

Integrative Zoology, EarlyView.
High altitudes are challenging for the animals that inhabit these environments. The Xizang plateau frog (Nanorana parkeri) survives in high‐altitude environments through a synergistic strategy of metabolic remodeling and protein expression adjustment to optimize energy efficiency and enhance cellular protection.
Xuejing Zhang, Yonggang Niu, Shengkang Men, Yanghuilin Zhang, Xiaolong Tang, Kenneth B. Storey, Qiang Chen   +6 more
wiley   +1 more source

The effect of combined glutamate receptor blockade in the NTS on the hypoxic ventilatory response in awake rats differs from the effect of individual glutamate receptor blockade. [PDF]

, 2014
Ventilatory acclimatization to hypoxia (VAH) increases the hypoxic ventilatory response (HVR) and causes persistent hyperventilation when normoxia is restored, which is consistent with the occurrence of synaptic plasticity in acclimatized animals ...
Carr, John A, Nguyen, Jetson, Pamenter, Matthew E, Powell, Frank L   +3 more
core   +2 more sources

Cenozoic Tectonics Ignite Mitochondrial Codon Innovations Propelling Canid Body Size Evolution and Transcontinental Radiations

Integrative Zoology, EarlyView.
We decode mitochondrial genomes across all extant canids, revealing lineage‐specific codon optimization driven by altitude, predation, and body size. A tripartite framework integrates geological events, metabolic constraints, and adaptive radiation to explain carnivore evolution.
Xiaoyang Wu, Xibao Wang, Yongquan Shang, Yao Chen, Haotian Cai, Tian Xia, Qinguo Wei, Weilai Sha, Honghai Zhang   +8 more
wiley   +1 more source

The physiology and biomechanics of avian flight at high altitude [PDF]

, 2006
Many birds fly at high altitude, either during long-distance flights or by virtue of residence in high-elevation habitats. Among the many environmental features that vary systematically with altitude, five have significant consequences for avian flight ...
Altshuler, Douglas L., Dudley, Robert
core  

Genomic Investigations Unveil the Genetic Underpinnings of Environmental Adaptation in African Goat Populations

Integrative Zoology, EarlyView.
This study integrates genomics and landscape genetics to analyze African goat environmental adaptation. Analyzing 1591 samples, it finds population structure differentiates geographically into four groups, with gene flow between wild Yura goats and North Africans.
Weifeng Peng, Yihua Wang, Yiyuan Zhang, Lei Gao, Lili Wu, Shuping Wang, Yiyang Gao, Wanlu Shi, Kaixin Lu, Rong Deng, Junting Li, Jing Han, Xiaohui Lu, Yujie Liu, Xiaojiao Tang, Yunxia Zhang, Guoyin Li, Li Huang, Mingsheng Yang, Xiaoyan Li   +19 more
wiley   +1 more source

Adapting to Urban Heights: Multidimensional Gradients Drive Nest‐Selection Plasticity and Trade‐Offs in a Human‐Commensal Sparrow

Integrative Zoology, EarlyView.
Urban Eurasian tree sparrows exhibit pronounced nest‐site plasticity, exploiting vertical building space while preferring lower nest heights when sites are abundant. Nest decisions are driven by altitude and building height rather than other factors, indicating a shift toward anthropogenic resources in cities.
Yang Wang, Guanqun Kou, Fangyuan Liu, Xu Liu, Juyong Li, Jie Wang, Qian Zhang, Yuan Yin, Limin Wang, John C. Wingfield, Fumin Lei, Dongming Li   +11 more
wiley   +1 more source

Iron Physiology and Its Impact on Atopic Diseases: An EAACI Taskforce Report

Allergy, EarlyView.
ABSTRACT Iron is essential for oxygen transport, energy metabolism, and immune regulation. Yet iron deficiency is the most common micronutrient disorder across all age groups, affecting nearly one quarter of the global population. Iron deficiency triggers nutritional immunity, a host defense mechanism that withholds and redistributes iron, contributing
Franziska Roth‐Walter, Ioana Agache, Beatriz Cabanillas, Roberto Berni Canani, Pasquale Comberiati, Holger Garn, Cristina Gomez‐Casado, Karin Hufnagl, Ekaterina Khaleva, Gregorio P. Milani, Daniel Munblit, Nikolaos Douladiris, Liam O'Mahony, Frank Redegeld, Carmen Riggioni, Peter K. Smith, Betty van Esch, Emilia Vassilopoulou, Carina Venter, Diego G. Peroni   +19 more
wiley   +1 more source

Nonlinear effects of altitude on child growth in Peru : a multilevel analysis [PDF]

Growth at high altitude has been the object of many investigations after experimental studies on animals showed that hypoxia at high altitude slows growth. Many studies have also looked at the Andean populations and found different results. Even though a
Gragnolati, Michele, Marini, Alessandra
core  

Acute Physiological and Performance Responses to High-Intensity Resistance Circuit Training in Hypoxic and Normoxic Conditions. [PDF]

, 2017
The aim of this study was to analyze physical performance and physiological variables during high-intensity resistance circuit training (HRC) with the addition of 2 levels (moderate and high) of systemic hypoxia.
Alcaraz Ramón, Pedro Emilio, Camacho, A, Freitas, Tomás T., Jiménez Díaz, José Fernando, Ramos Campo, Domingo Jesús, Rubio Arias, Jacobo Ángel   +5 more
core   +2 more sources

Hypoxia Exacerbates Periapical Periodontitis‐Associated Pathological Bone Loss via the Hypoxia‐Inducible Factor‐2α‐Calmodulin‐Dependent Protein Kinase IV Axis

Cell Proliferation, EarlyView.
Hypoxia exposure activates HIF‐2α, which binds to the Camk4 promoter to enhance RANKL‐mediated osteoclast differentiation, leading to aggravated alveolar bone resorption in periapical periodontitis. ABSTRACT Periapical periodontitis is one of the most common inflammatory bone destructive diseases. Epidemiological evidence suggests that hypoxia exposure,
Kang Gao, Yifan Xu, Haoran Du, Zixiao Li, Xiaochen Fang, Minghui Wang, Jia Liu, Xu Zha, Xianglong Han, Weihua Guo, Xicheng Liu, Jian Zhou   +11 more
wiley   +1 more source