In 2019,the newly emerged SARS-CoV-2 virus caused pneumonia-like illness.The disease rapidly spread globally,leading to a worldwide outbreak referred to as the COVID-19 pandemic.
Heat stress induced by long periods of high ambient temperature decreases animal productivity,leading to heavy economic losses.This devastating situation for livestock production is even becoming worse under the prese...Heat stress induced by long periods of high ambient temperature decreases animal productivity,leading to heavy economic losses.This devastating situation for livestock production is even becoming worse under the present climate change scenario.Strategies focused to breed animals with better thermotolerance and climatic resilience are keenly sought these days to mitigate impacts of heat stress especially in high input livestock production systems.The 70-kDa heat shock proteins(HSP70) are a protein family known for its potential role in thermo-tolerance and widely considered as cellular thermometers.HSP70 function as molecular chaperons and have major roles in cellular thermotolerance,apoptosis,immune-modulation and heat stress.Expression of HSP70 is controlled by various factors such as,intracellular pH,cyclic adenosine monophosphate(cyclic AMP),protein kinase C and intracellular free calcium,etc.Over expression of HSP70 has been observed under oxidative stress leading to scavenging of mitochondrial reactive oxygen species and protection of pulmonary endothelial barrier against bacterial toxins.Polymorphisms in flanking and promoter regions in HSP70 gene have shown association with heat tolerance,weaning weight,milk production,fertility and disease susceptibility in livestock.This review provides insight into pivotal roles of HSP70 which make it an ideal candidate genetic marker for selection of animals with better climate resilience,immune response and superior performance.展开更多
基金the Primary and Secondary Healthcare Department,Punjab for the financial support to this project。
文摘In 2019,the newly emerged SARS-CoV-2 virus caused pneumonia-like illness.The disease rapidly spread globally,leading to a worldwide outbreak referred to as the COVID-19 pandemic.
基金supported by grants from National Key Research and Development Program of China (2016YFD0500507, 2018YFD0501600)Natural Science Foundation of China (31460613,31560649).
文摘Heat stress induced by long periods of high ambient temperature decreases animal productivity,leading to heavy economic losses.This devastating situation for livestock production is even becoming worse under the present climate change scenario.Strategies focused to breed animals with better thermotolerance and climatic resilience are keenly sought these days to mitigate impacts of heat stress especially in high input livestock production systems.The 70-kDa heat shock proteins(HSP70) are a protein family known for its potential role in thermo-tolerance and widely considered as cellular thermometers.HSP70 function as molecular chaperons and have major roles in cellular thermotolerance,apoptosis,immune-modulation and heat stress.Expression of HSP70 is controlled by various factors such as,intracellular pH,cyclic adenosine monophosphate(cyclic AMP),protein kinase C and intracellular free calcium,etc.Over expression of HSP70 has been observed under oxidative stress leading to scavenging of mitochondrial reactive oxygen species and protection of pulmonary endothelial barrier against bacterial toxins.Polymorphisms in flanking and promoter regions in HSP70 gene have shown association with heat tolerance,weaning weight,milk production,fertility and disease susceptibility in livestock.This review provides insight into pivotal roles of HSP70 which make it an ideal candidate genetic marker for selection of animals with better climate resilience,immune response and superior performance.
