To understand the function of porcine adipocyte-special membrane protein （PAMP） gene and the difference of fat deposition ability among various lean pig breeds, a full-length porcine adipocyte-special membrane prote...To understand the function of porcine adipocyte-special membrane protein （PAMP） gene and the difference of fat deposition ability among various lean pig breeds, a full-length porcine adipocyte-special membrane protein （PAMP） gene was successfully amplified using reverse transcription polymerase chain reaction （RT-PCR） and 5＇-rapid amplification of cDNA end （5＇-RACE）. The open reading frame was 1 587 bp encoding 529 amino acids. The nucleotide sequence of the fulllength PAMP gene was deposited in the GenBank under the accession number EF433431. The PAMP gene mRNA expression was analyzed on three lean pig breeds by quantitative reverse transcription polymerase chain reaction （QRTPCR）. The PAMP gene mRNA levels in YHM （Yorkshire × Hampshire × Meishan） pig and DLY （Duroc × Landrance × Yorkshire） pig were about 0.82 and 0.38 times of that in SW （Shanxi-White） pig, respectively.展开更多
Mobile devices are effective tools for language learning and have positive effect on the development of language skills,heighten learners’ language learning attitudes and motivation, and support learner interaction, ...Mobile devices are effective tools for language learning and have positive effect on the development of language skills,heighten learners’ language learning attitudes and motivation, and support learner interaction, collaboration, and the coconstruction of knowledge. In spite of the popularity of mobile dictionaries among students, research on the effect of this app on students’language learning, especially focusing on the students from vocational school in rural area, is still scarce. So the purpose ofthe current study is probing into the effect of using mobile dictionaries on lower-intermediate students’ language learning, focusingon the students from vocational school in rural areas, in contrast to using printed dictionaries. This proposal is arranged as follows:section one presents the research background; section two reviews literatures; section three provides research problems and research design; section four presents data analysis and anticipated results. This proposal ends with conclusions. In term of researchaims, a mixed method of quantitative and qualitative will be applied with the main aim of probing the effect of using mobile dictionaries on students’ English learning and the opinions of students’on using the mobile dictionaries in English learning. Researchmethods in the form of quasi-experimental pre-and post-tests, questionnaires, interview will be undertaken to collect data.展开更多
目的研究杏鲍菇多肽对铅致大鼠骨骼损伤的干预作用。方法 27只21日龄(60±5)g清洁级健康雄性SD大鼠随机分为对照(基础饲料+去离子水)、染铅(基础饲料+0.2%醋酸铅水)、试验(基础饲料添加2%杏鲍菇多肽+0.2%醋酸铅水)共3组。饲养60 d后...目的研究杏鲍菇多肽对铅致大鼠骨骼损伤的干预作用。方法 27只21日龄(60±5)g清洁级健康雄性SD大鼠随机分为对照(基础饲料+去离子水)、染铅(基础饲料+0.2%醋酸铅水)、试验(基础饲料添加2%杏鲍菇多肽+0.2%醋酸铅水)共3组。饲养60 d后,取全血及股骨,测定血清与骨组织中骨钙素(BGP)、甲状旁腺激素(PTH)、降钙素(CT)的含量和碱性磷酸酶(AKP)的活性,利用ICP法测定股骨中二价矿物元素的含量,通过HE染色观察骨组织形态变化,用荧光定量RT-PCR法测定骨组织中TRPV5、TRPV6、NCX1和PMCA1b基因的m RNA表达量。结果铅暴露会导致大鼠体重增长较慢;BGP、CT、钙、锌、铁、铜含量,AKP活性及TRPV5和TRPV6 m RNΑ表达量显著或极显著下降(P<0.05或P<0.01);PTH和铅含量、NCX1和PMCA1b m RNΑ表达量显著或极显著上升(P<0.05或P<0.01)。补充一定剂量杏鲍菇多肽后,血清中AKP的活力显著上升(P<0.05),股骨中铅含量显著下降(P<0.05),骨损伤减轻,明显改善骨组织病理性变化,股骨中TRPV6 m RNΑ表达量显著上升(P<0.05)。结论补充适量的杏鲍菇多肽可缓解染铅导致的大鼠骨骼损伤。展开更多
基金the National Natural Science Foundation of China (20011089)the Fi-nance Department Achievement Transformation Project of Shanxi Province in China (2005)
文摘To understand the function of porcine adipocyte-special membrane protein （PAMP） gene and the difference of fat deposition ability among various lean pig breeds, a full-length porcine adipocyte-special membrane protein （PAMP） gene was successfully amplified using reverse transcription polymerase chain reaction （RT-PCR） and 5＇-rapid amplification of cDNA end （5＇-RACE）. The open reading frame was 1 587 bp encoding 529 amino acids. The nucleotide sequence of the fulllength PAMP gene was deposited in the GenBank under the accession number EF433431. The PAMP gene mRNA expression was analyzed on three lean pig breeds by quantitative reverse transcription polymerase chain reaction （QRTPCR）. The PAMP gene mRNA levels in YHM （Yorkshire × Hampshire × Meishan） pig and DLY （Duroc × Landrance × Yorkshire） pig were about 0.82 and 0.38 times of that in SW （Shanxi-White） pig, respectively.
文摘Mobile devices are effective tools for language learning and have positive effect on the development of language skills,heighten learners’ language learning attitudes and motivation, and support learner interaction, collaboration, and the coconstruction of knowledge. In spite of the popularity of mobile dictionaries among students, research on the effect of this app on students’language learning, especially focusing on the students from vocational school in rural area, is still scarce. So the purpose ofthe current study is probing into the effect of using mobile dictionaries on lower-intermediate students’ language learning, focusingon the students from vocational school in rural areas, in contrast to using printed dictionaries. This proposal is arranged as follows:section one presents the research background; section two reviews literatures; section three provides research problems and research design; section four presents data analysis and anticipated results. This proposal ends with conclusions. In term of researchaims, a mixed method of quantitative and qualitative will be applied with the main aim of probing the effect of using mobile dictionaries on students’ English learning and the opinions of students’on using the mobile dictionaries in English learning. Researchmethods in the form of quasi-experimental pre-and post-tests, questionnaires, interview will be undertaken to collect data.
文摘目的研究杏鲍菇多肽对铅致大鼠骨骼损伤的干预作用。方法 27只21日龄(60±5)g清洁级健康雄性SD大鼠随机分为对照(基础饲料+去离子水)、染铅(基础饲料+0.2%醋酸铅水)、试验(基础饲料添加2%杏鲍菇多肽+0.2%醋酸铅水)共3组。饲养60 d后,取全血及股骨,测定血清与骨组织中骨钙素(BGP)、甲状旁腺激素(PTH)、降钙素(CT)的含量和碱性磷酸酶(AKP)的活性,利用ICP法测定股骨中二价矿物元素的含量,通过HE染色观察骨组织形态变化,用荧光定量RT-PCR法测定骨组织中TRPV5、TRPV6、NCX1和PMCA1b基因的m RNA表达量。结果铅暴露会导致大鼠体重增长较慢;BGP、CT、钙、锌、铁、铜含量,AKP活性及TRPV5和TRPV6 m RNΑ表达量显著或极显著下降(P<0.05或P<0.01);PTH和铅含量、NCX1和PMCA1b m RNΑ表达量显著或极显著上升(P<0.05或P<0.01)。补充一定剂量杏鲍菇多肽后,血清中AKP的活力显著上升(P<0.05),股骨中铅含量显著下降(P<0.05),骨损伤减轻,明显改善骨组织病理性变化,股骨中TRPV6 m RNΑ表达量显著上升(P<0.05)。结论补充适量的杏鲍菇多肽可缓解染铅导致的大鼠骨骼损伤。
