Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1093/conphys/cow078 |
Body water conservation through selective brain cooling by the carotid rete: a physiological feature for surviving climate change? | |
Strauss, W. Maartin1,2; Hetem, Robyn S.1,3; Mitchell, Duncan1,4; Maloney, Shane K.1,4; O’Brien, Haley D.5; Meyer, Leith C. R.1,6; Fuller, Andrea1,6 | |
通讯作者 | Strauss, W. Maartin |
来源期刊 | CONSERVATION PHYSIOLOGY
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ISSN | 2051-1434 |
出版年 | 2017 |
卷号 | 5 |
英文摘要 | Some mammals have the ability to lower their hypothalamic temperature below that of carotid arterial blood temperature, a process termed selective brain cooling. Although the requisite anatomical structure that facilitates this physiological process, the carotid rete, is present in members of the Cetartiodactyla, Felidae and Canidae, the carotid rete is particularly well developed in the artiodactyls, e.g. antelopes, cattle, sheep and goats. First described in the domestic cat, the seemingly obvious function initially attributed to selective brain cooling was that of protecting the brain from thermal damage. However, hyperthermia is not a prerequisite for selective brain cooling, and selective brain cooling can be exhibited at all times of the day, even when carotid arterial blood temperature is relatively low. More recently, it has been shown that selective brain cooling functions primarily as a water-conservation mechanism, allowing artiodactyls to save more than half of their daily water requirements. Here, we argue that the evolutionary success of the artiodactyls may, in part, be attributed to the evolution of the carotid rete and the resulting ability to conserve body water during past environmental conditions, and we suggest that this group of mammals may therefore have a selective advantage in the hotter and drier conditions associated with current anthropogenic climate change. A better understanding of how selective brain cooling provides physiological plasticity to mammals in changing environments will improve our ability to predict their responses and to implement appropriate conservation measures. |
英文关键词 | Artiodactyl success brain temperature carotid arterial blood temperature osmoregulation physiological plasticity rostral epidural rete mirabile |
类型 | Article |
语种 | 英语 |
国家 | South Africa ; Australia ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000402598000001 |
WOS关键词 | ANTELOPE ANTILOCAPRA-AMERICANA ; ARTERIAL-BLOOD TEMPERATURES ; EOCENE-OLIGOCENE TRANSITION ; ANGULARIS OCULI VEIN ; ARID-ZONE MAMMALS ; OX BOS-TAURUS ; HYPOTHALAMIC TEMPERATURE ; ARTIODACTYL SUCCESS ; CORE TEMPERATURE ; NATURAL HABITAT |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences ; Physiology |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology ; Physiology |
来源机构 | University of Western Australia |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198200 |
作者单位 | 1.Univ Witwatersrand, Sch Physiol, Fac Heath Sci, Brain Funct Res Grp, ZA-2193 Johannesburg, South Africa; 2.Univ South Africa, Dept Environm Sci, ZA-1709 Johannesburg, South Africa; 3.Univ Witwatersrand, Fac Sci, Sch Anim Plant & Environm Sci, ZA-2050 Johannesburg, South Africa; 4.Univ Western Australia, Sch Anat Physiol & Human Biol, Perth, WA 6009, Australia; 5.Oklahoma State Univ, Ctr Hlth Sci, Dept Anat & Cell Biol, Oklahoma City, OK 74107 USA; 6.Univ Pretoria, Fac Vet Sci, Dept Paraclin Sci, ZA-0110 Pretoria, South Africa |
推荐引用方式 GB/T 7714 | Strauss, W. Maartin,Hetem, Robyn S.,Mitchell, Duncan,et al. Body water conservation through selective brain cooling by the carotid rete: a physiological feature for surviving climate change?[J]. University of Western Australia,2017,5. |
APA | Strauss, W. Maartin.,Hetem, Robyn S..,Mitchell, Duncan.,Maloney, Shane K..,O’Brien, Haley D..,...&Fuller, Andrea.(2017).Body water conservation through selective brain cooling by the carotid rete: a physiological feature for surviving climate change?.CONSERVATION PHYSIOLOGY,5. |
MLA | Strauss, W. Maartin,et al."Body water conservation through selective brain cooling by the carotid rete: a physiological feature for surviving climate change?".CONSERVATION PHYSIOLOGY 5(2017). |
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