Results 81 to 90 of about 49,768 (263)

Torpor‐assisted migration: Regular use of shallow torpor reduces rest‐phase energy expenditure for songbirds during migration

Journal of Animal Ecology, EarlyView.
Migrating songbirds regularly use shallow torpor (up to 98% of birds for some species) to save energy (up to 42%) during inactive periods. This Ruby‐crowned Kinglet Corthylio calendula that was captured after a spring snowstorm highlights the value of being able to save energy when encountering unfavourable conditions.
Ryan A. C. Leys, Lily Hou, Liam P. McGuire   +2 more
wiley   +1 more source

Non-Shivering Thermogenesis in Birds: A Role for Skeletal Muscle

Avian non-shivering thermogenesis (NST) is still a controversial topic. Empirical data collected in the past two decades have demonstrated that NST is potentially one of the mechanisms deployed by birds to modulate their thermoregulation.
Bicudo, José Eduardo Pereira Wilken, Pani, Punyadhara, Bicego, Kênia Cardoso [UNESP]   +2 more
core   +1 more source

The role of thermogenesis.

, 2015
Intuitively, an animal that is able to produce more heat internally (e.g. through BAT-thermogenesis) could tolerate having a greater exposed surface area.
Roderich Groß (791841), Jonathan Glancy (791840), James V. Stone (376998), Stuart P. Wilson (201058)   +3 more
core   +1 more source

Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model

Integrative Zoology, EarlyView.
UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang, Yuehua Wang, Hang Zhang, Guiping Xu, Shixia Xu, Guang Yang   +5 more
wiley   +1 more source

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

Loss of histone methyltransferase Smyd3 triggers WAT browning and adaptive thermogenesis via enhancing PPARγ expression in a H4K20me3-dependent manner

Journal of Translational Medicine
Adaptive thermogenesis driven by brown/beige adipose tissue has gained attention as a promising strategy for combating obesity. Histone methyltransferase SET and MYND Domain Containing 3 (Smyd3) is strongly associated with metabolic and cardiovascular ...
Meiling Shu, Youzhen Ma, Dandan Zhao, Chen Meng, Lang Chen, Leihao Wang, Jing Liu, Di Yang   +7 more
doaj   +1 more source

Gut Microbiota of Gray Snub‐Nosed Monkeys: Adaptation to Seasonal Variations Through Energy Compensation and Thermogenesis

Integrative Zoology, EarlyView.
Based on metagenome‐assembled genomes (MAGs), the gut microbiota of the gray snub‐nosed monkeys recovered 1229 non‐redundant MAGs. The gut microbiota showed an enhanced capacity to produce energy substrates with increased conversion activity of these substrates during winter.
Yue Sun, Mingyi Zhang, Xiaochen Wang, Xiaolong Huang, Yanze Yu, Huijuan Pan, Haibo Li, Lei Shi, Wei Yang, Chen Zhang, Bo Ding, Xun Liu, Jianfeng Li, Changjiang Qian, Boxing Cheng, Chao Zhang, Jingcheng Ran, Ming Li   +17 more
wiley   +1 more source

Thermogenesis and Deacclimatization in Mice Raised at High Altitud [PDF]

, 1990
:T he male mice were raised in the tent of Yatsugatake laboratory (2，400m above the sea leve ，)l YG， for about one month from October to November in 1986 and in the laboratory of matsumoto (6 10m above the sea le ，v)le MG. The average ambient temperature
上田, 五雨, 金子, みち代, 米川, 正利, 柳平, 坦徳, 浅野, 功治, 竹岡, みち子, 樫村, 修生, 酒井, 秋男   +7 more
core  

Comparative Genomics and Functional Evidence for Convergent Adaptation to Hypoxia in Mammals

Integrative Zoology, EarlyView.
This study reveals convergent selection in mammals adapted to hypoxia. Functional assays demonstrate that amino acid mutations reduce oxidative stress, attenuate hypoxia‐induced injury, and modulate the hypoxia‐inducible transcription factor (HIF)‐driven hypoxic response.
Hao Dong, Chunxu Wang, Enqing Pei, Liang Zhao, Simin Chai, Ran Tian   +5 more
wiley   +1 more source

Seasonal Dynamics of Community and Function of Gut Microbiome in Taihangshan Macaque (Macaca mulatta tcheliensis): Inferred From Metagenomic Data

Integrative Zoology, EarlyView.
A total of 435 non‐redundant metagenome‐assembled genomes (MAGs) were obtained from fecal samples of Taihangshan macaque across all four seasons. The alpha diversity of the gut microbiome in spring and winter was significantly higher than in summer and autumn. Furthermore, marked differences were detected in functional pathways and carbohydrate enzymes
Yanyan Zhou, Qi Shao, Chunbo Liu, Jundong Tian, Xiaowen Guan, Xi Zhang, Jiqi Lu   +6 more
wiley   +1 more source