China has approximately 14 500 krn long coastline that not only offers to dwell for human being but also exists diverse marine organisms. Nowadays, Chinese marine economy development is rapid and marvelous, while we h...China has approximately 14 500 krn long coastline that not only offers to dwell for human being but also exists diverse marine organisms. Nowadays, Chinese marine economy development is rapid and marvelous, while we have met very serious problem on losing marine biodiversity. Marine biodiversity can be addressed at the level of diversity within species, between the species and of ecosystems. Each level of biodiversity have been at different extents of threatening. Among this species-level diversity may be the most essential and important for these protecting actions. Species is the basic unit of classification and a taxonomic rank, as well as a unit of biodiversity. Removing species from marine ecosystems removes those important functions. We have an ethical responsibility to protect marine biodiversity, but the first step is to understand how many marine species exist, and it is important because it provides a measure of how well we know about marine life and their potential ecosystem functions.展开更多
Postoperative cognitive dysfunction is a crucial public health issue that has been increasingly studied in efforts to reduce symptoms or prevent its occurrence. However, effective advances remain lacking. Hyperbaric o...Postoperative cognitive dysfunction is a crucial public health issue that has been increasingly studied in efforts to reduce symptoms or prevent its occurrence. However, effective advances remain lacking. Hyperbaric oxygen preconditioning has proved to protect vital organs, such as the heart, liver, and brain. Recently, it has been introduced and widely studied in the prevention of postoperative cognitive dysfunction, with promising results. However, the neuroprotective mechanisms underlying this phenomenon remain controversial. This review summarizes and highlights the definition and application of hyperbaric oxygen preconditioning, the perniciousness and pathogenetic mechanism underlying postoperative cognitive dysfunction, and the effects that hyperbaric oxygen preconditioning has on postoperative cognitive dysfunction. Finally, we conclude that hyperbaric oxygen preconditioning is an effective and feasible method to prevent, alleviate, and improve postoperative cognitive dysfunction, and that its mechanism of action is very complex, involving the stimulation of endogenous antioxidant and anti-inflammation defense systems.展开更多
基金The National Natural Science Foundation of China under contract Nos 41876134 and 41276124the Changjiang Scholar Program of Chinese Ministry of Education to Jun Sun
文摘China has approximately 14 500 krn long coastline that not only offers to dwell for human being but also exists diverse marine organisms. Nowadays, Chinese marine economy development is rapid and marvelous, while we have met very serious problem on losing marine biodiversity. Marine biodiversity can be addressed at the level of diversity within species, between the species and of ecosystems. Each level of biodiversity have been at different extents of threatening. Among this species-level diversity may be the most essential and important for these protecting actions. Species is the basic unit of classification and a taxonomic rank, as well as a unit of biodiversity. Removing species from marine ecosystems removes those important functions. We have an ethical responsibility to protect marine biodiversity, but the first step is to understand how many marine species exist, and it is important because it provides a measure of how well we know about marine life and their potential ecosystem functions.
基金supported by the Special Research Foundation of Doctoral Course in Colleges and Universities of China in 2013,No.20133420110009
文摘Postoperative cognitive dysfunction is a crucial public health issue that has been increasingly studied in efforts to reduce symptoms or prevent its occurrence. However, effective advances remain lacking. Hyperbaric oxygen preconditioning has proved to protect vital organs, such as the heart, liver, and brain. Recently, it has been introduced and widely studied in the prevention of postoperative cognitive dysfunction, with promising results. However, the neuroprotective mechanisms underlying this phenomenon remain controversial. This review summarizes and highlights the definition and application of hyperbaric oxygen preconditioning, the perniciousness and pathogenetic mechanism underlying postoperative cognitive dysfunction, and the effects that hyperbaric oxygen preconditioning has on postoperative cognitive dysfunction. Finally, we conclude that hyperbaric oxygen preconditioning is an effective and feasible method to prevent, alleviate, and improve postoperative cognitive dysfunction, and that its mechanism of action is very complex, involving the stimulation of endogenous antioxidant and anti-inflammation defense systems.
