牦牛和柴达木黄牛低氧通气反应及颈动脉体NO、NOS的比较研究

doi:10.11843/j.issn.0366-6964.2018.10.024

畜牧兽医学报 ›› 2018, Vol. 49 ›› Issue (10): 2276-2282.doi: 10.11843/j.issn.0366-6964.2018.10.024

牦牛和柴达木黄牛低氧通气反应及颈动脉体NO、NOS的比较研究

张寿¹, 靳国恩², 常兰^1*, 吕军¹, 沈明华¹, 刘惠¹, 顾海燕¹, 雷乃虎³

1. 青海大学农牧学院, 西宁 810016;
2. 青海大学医学院高原医学研究中心, 西宁 810001;
3. 青海省天峻县畜牧兽医工作站, 天峻 817200

收稿日期:2018-02-07 出版日期:2018-10-23 发布日期:2018-10-23
通讯作者: 常兰,E-mail:changlan0123@163.com
作者简介:张寿(1964-),男,青海西宁人,教授,学士,硕士生导师,主要从事高原动物低氧适应研究,E-mail:qhzhangshou@163.com
基金资助:
国家自然科学基金（31360590）

Comparison on Hypoxic Ventilatory Response and NO, NOS of Carotid Body between Yaks and Qaidam Yellow Cattle

ZHANG Shou¹, JIN Guo-en², CHANG Lan^1*, LÜ Jun¹, SHEN Ming-hua¹, LIU Hui¹, GU Hai-yan¹, LEI Nai-hu³

1. College of Agriculture and Animal Husbandary, Qinghai University, Xining 810016, China;
2. Research Center for High Altitude Medical Science, Medical College of Qinghai University, Xining 810001, China;
3. Tianjun County Amimal Husbandry and Veterinary Station of Qinghai, Tianjun 817200, China

Received:2018-02-07 Online:2018-10-23 Published:2018-10-23

摘要/Abstract

摘要：

旨在比较牦牛和柴达木黄牛低氧通气反应（HVR）特征及颈动脉体（CB）中一氧化氮（NO）、一氧化氮合酶（NOS）含量。选择生活在海拔3 200 m临床健康的成年牦牛和柴达木黄牛进行13.9% O₂低氧（模拟海拔6 000 m）通气反应；采用荧光定量PCR、酶联免疫吸附（ELISA）双抗体夹心法和免疫组织化学方法对海拔3 200 m牦牛、柴达木黄牛及模拟海拔6 000 m时CB中的NOS mRNA和蛋白水平表达以及NO含量进行检测。结果表明：牦牛、柴达木黄牛低氧通气反应斜率（△V_E/△SaO₂）分别为（0.21±0.10）和（0.50±0.21）（L·min^-1）/% SaO₂（P<0.01）；海拔3 200 m时，CB中nNOS、eNOS、iNOS基因mRNA和蛋白表达水平在牦牛与柴达木黄牛间差异均不显著（P>0.05），模拟海拔6 000 m时，CB中nNOS、eNOS、iNOS蛋白表达水平在牦牛与柴达木黄牛间差异均不显著（P>0.05），模拟海拔6 000 m的牦牛、柴达木黄牛CB中nNOS、eNOS、iNOS蛋白表达水平分别与海拔3 200 m的牦牛、柴达木黄牛比较差异均不显著（P>0.05）；在模拟海拔6 000 m组，牦牛、柴达木黄牛CB中NO含量均显著高于海拔3 200 m（P<0.01或P<0.05），在模拟海拔6 000 m组，牦牛CB中NO含量极显著高于柴达木黄牛（P<0.01），在海拔3 200 m，牦牛与柴达木黄牛CB中NO含量差异不显著（P>0.05）。结果提示，青藏高原世居牦牛低氧通气反应钝化，而柴达木黄牛对低氧的刺激保持较高的通气反应，急性低氧时牦牛CB内产生大量的NO可抑制对低氧的化学感受。

Abstract:

The aim of the present study to compare the hypoxic ventilatory response (HVR) characteristic and the content of nitric oxide (NO), nitric oxide synthase (NOS) in carotid body (CB) between yaks and Qaidam yellow cattle. In this study, health adult yaks and Qaidam yellow cattle at altitude of 3 200 m were inhaled hypoxic gas of 13.9% O₂, which was simulated to the altitude of 6 000 m; NO and NOS mRNA and NOS protein levels were detected in carotid body of yak and Qaidam yellow cattle living at altitude 3 200 m and simulate-altitude 6 000 m by the real-time quantitative PCR, enzyme-linked immunosorbent assay (ELISA) and immunohistochemical methods. The results showed that the slopes of HVR (△V_E/△SaO₂) in yaks and Qaidam yellow cattle were (0.21±0.10) and (0.50±0.21) (L·min^-1)/% SaO₂ (P<0.01), respectively; There were no significant differences in the expression of the mRNA and protein of nNOS, eNOS, iNOS in CB between yak and Qaidam yellow cattle at altitude 3 200 m (P>0.05), in the expression of the protein of nNOS, eNOS, iNOS in CB between yak and Qaidam yellow cattle at simulate-altitude 6 000 m (P>0.05), in the expression of the protein of nNOS, eNOS, iNOS in yak CB between simulate-altitude 6 000 m and altitude 3 200 m, nor in Qaidam yellow cattle. The NO of the CB in yak and Qaidam yellow cattle at simulate-altitude 6 000 m was significantly higher than that of at altitude 3 200 m (P<0.01,P<0.05), respectively. The content of NO in yak CB was significantly higher than that of Qaidam yellow cattle at simulate-altitude 6 000 m (P<0.01). No significant difference in the content of NO in CB between yaks and Qaidam yellow cattle at altitude 3 200 m (P>0.05). The results suggested that HVR was blunted in Yak in Qinghai-Tibetan Plateau, and there was higher ventilatory response to hypoxia in Qaidam yellow cattles, NO production in the yak CB increases during acute hypoxia, and the elevated levels of NO may suppresses the CB response to hypoxia.

中图分类号:

S852.1

张寿, 靳国恩, 常兰, 吕军, 沈明华, 刘惠, 顾海燕, 雷乃虎. 牦牛和柴达木黄牛低氧通气反应及颈动脉体NO、NOS的比较研究[J]. 畜牧兽医学报, 2018, 49(10): 2276-2282.

ZHANG Shou, JIN Guo-en, CHANG Lan,Lü Jun, SHEN Ming-hua, LIU Hui, GU Hai-yan, LEI Nai-hu. Comparison on Hypoxic Ventilatory Response and NO, NOS of Carotid Body between Yaks and Qaidam Yellow Cattle[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2018, 49(10): 2276-2282.

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牦牛和柴达木黄牛低氧通气反应及颈动脉体NO、NOS的比较研究

Comparison on Hypoxic Ventilatory Response and NO, NOS of Carotid Body between Yaks and Qaidam Yellow Cattle

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