After several rounds of phased ups and downs of development,rural animal husbandry finally presents a shrinking and depressed development situation under the comprehensive action of the failure of transformation and u...After several rounds of phased ups and downs of development,rural animal husbandry finally presents a shrinking and depressed development situation under the comprehensive action of the failure of transformation and upgrading and the increasing production costs and breeding risks.Actively exploring and guiding the healthy and sound development of rural animal husbandry is not only an important measure to promote the construction of ecological agriculture,but also the main starting point to realize the revitalization of rural industry.This paper analyzes the present situation of the development of rural animal husbandry in recent years,the influence of animal husbandry on the construction of ecological agriculture and the revitalization of rural industry,and puts forward the corresponding measures,in order to promote the steady and efficient development of animal husbandry in the grand strategy of revitalizing rural industry.展开更多
Development of agri-culture and animalhusbandry in Tibetover the past 50years has played animportant role in local eco-nomic development. However,with China’s accession to theWTO,the goal of agriculturalproduction an...Development of agri-culture and animalhusbandry in Tibetover the past 50years has played animportant role in local eco-nomic development. However,with China’s accession to theWTO,the goal of agriculturalproduction and livestockbreeding is changing fromproviding the public with foodto increasing the income offarmers and herders. Whilethe public shows more con-cern for market economicdevelopment and protection展开更多
Children are being exposed to an increasingly greater variety of anesthetics with advances in pediatric and obstetric surgery. Recent animal and retrospective human data suggest that the general anes- thetics commonly...Children are being exposed to an increasingly greater variety of anesthetics with advances in pediatric and obstetric surgery. Recent animal and retrospective human data suggest that the general anes- thetics commonly used in pediatric medicine could he damaging to the developing brain when used at clinical concentrations. In viw~ primate and rodent models have shown that neonatal exposure to clinical concentrations of anesthetics causes neural apoptosis and long-term cognitive impairment. Many general anesthetics.展开更多
The effects of clinically relevant doses of commonly prescribed stimulants methylphenidate （MPH）, d-am- phetamine （d-AMPH）, and dl-AMPH or mixed amphetamine salts （MAS） such as Adderall, on short- and long-term ...The effects of clinically relevant doses of commonly prescribed stimulants methylphenidate （MPH）, d-am- phetamine （d-AMPH）, and dl-AMPH or mixed amphetamine salts （MAS） such as Adderall, on short- and long-term gene neuroadaptations in developing animals have not been widely investigated. In the present review, the effects of oral stimulant administration were compared with those of the subcutaneous or intra-peritoneal route. A selective set of stud- ies between 1979 and 2010, which incorporated in their design developmental period, clinically relevant doses of stimu- lants, and repeated daily doses were reviewed. These studies indicate that neuroadaptation to chronic stimulants includes blunting of stimulated immediate early gene expression, sensitivity of younger （prepubertal） brain to smaller dosages of stimulants, and the persistence of some effects, especially behavioral neuroadaptations, into adulthood. In addition, oral amphetamines （MAS） have more profound effects than does oral MPH. Further animal developmental studies are required to understand potential long-term neuroadaptations to low, daily oral doses of stimulants. Implications for clinical practice were also discussed.展开更多
文摘After several rounds of phased ups and downs of development,rural animal husbandry finally presents a shrinking and depressed development situation under the comprehensive action of the failure of transformation and upgrading and the increasing production costs and breeding risks.Actively exploring and guiding the healthy and sound development of rural animal husbandry is not only an important measure to promote the construction of ecological agriculture,but also the main starting point to realize the revitalization of rural industry.This paper analyzes the present situation of the development of rural animal husbandry in recent years,the influence of animal husbandry on the construction of ecological agriculture and the revitalization of rural industry,and puts forward the corresponding measures,in order to promote the steady and efficient development of animal husbandry in the grand strategy of revitalizing rural industry.
文摘Development of agri-culture and animalhusbandry in Tibetover the past 50years has played animportant role in local eco-nomic development. However,with China’s accession to theWTO,the goal of agriculturalproduction and livestockbreeding is changing fromproviding the public with foodto increasing the income offarmers and herders. Whilethe public shows more con-cern for market economicdevelopment and protection
基金supported by the Japan Society for the Promotion of Science,Tokyo,JapanGrant No.23890054 and 25861361
文摘Children are being exposed to an increasingly greater variety of anesthetics with advances in pediatric and obstetric surgery. Recent animal and retrospective human data suggest that the general anes- thetics commonly used in pediatric medicine could he damaging to the developing brain when used at clinical concentrations. In viw~ primate and rodent models have shown that neonatal exposure to clinical concentrations of anesthetics causes neural apoptosis and long-term cognitive impairment. Many general anesthetics.
基金supported by the IWK Health Centre, Nova Scotia Heath Research Foundation (NSHRF), Canadian Institute of Health Research (CIHR), the Atlee Endowment and NRC-Marine Biosciences
文摘The effects of clinically relevant doses of commonly prescribed stimulants methylphenidate （MPH）, d-am- phetamine （d-AMPH）, and dl-AMPH or mixed amphetamine salts （MAS） such as Adderall, on short- and long-term gene neuroadaptations in developing animals have not been widely investigated. In the present review, the effects of oral stimulant administration were compared with those of the subcutaneous or intra-peritoneal route. A selective set of stud- ies between 1979 and 2010, which incorporated in their design developmental period, clinically relevant doses of stimu- lants, and repeated daily doses were reviewed. These studies indicate that neuroadaptation to chronic stimulants includes blunting of stimulated immediate early gene expression, sensitivity of younger （prepubertal） brain to smaller dosages of stimulants, and the persistence of some effects, especially behavioral neuroadaptations, into adulthood. In addition, oral amphetamines （MAS） have more profound effects than does oral MPH. Further animal developmental studies are required to understand potential long-term neuroadaptations to low, daily oral doses of stimulants. Implications for clinical practice were also discussed.
