目的本文旨在通过计量学分析探讨近十年国内外运动处方的研究进展,分析该领域国内外关注热点及发展趋势异同点,为我国运动处方制定提供参考意见,以期进一步推动该领域的发展。方法从中国知网和Web of Science数据库中筛选出相关的中英...目的本文旨在通过计量学分析探讨近十年国内外运动处方的研究进展,分析该领域国内外关注热点及发展趋势异同点,为我国运动处方制定提供参考意见,以期进一步推动该领域的发展。方法从中国知网和Web of Science数据库中筛选出相关的中英文文献。利用数据库内置的计量统计和可视化显示功能,以及陈超美博士开发的CiteSpace V软件,对文献进行可视化演示分析和知识图谱绘造。结果通过信息检索和甄选,共获得449篇中文文献和2923篇英文文献。分析结果显示,国内外对运动处方研究的关注度呈稳定并有上升趋势,其关注热点主要集中在体医融合领域。相较于国外研究的广泛和细化程度,国内研究相对局限,国外更注重多学科交叉融合研究。其中,慢性病防治是现在研究热点;扩大运动处方适用范围,并不局限于治病领域将会是未来重要研究方向。结论国内的未来研究应加强多学科交叉融合,扩大运动处方研究范围和对象,更加科学合理有效地适用于老年群体,为未来促进老年人身体健康、延年益寿指引方向。展开更多
目的探讨改良俯卧位通气对清醒病毒性肺炎患者呼吸循环、康复指标、并发症的影响。方法选取2021年8月—2023年6年就诊的134例病毒性肺炎,按照随机数字表法分为研究组、对照组,各67例,对照组采用常规俯卧位通气,研究组采用改良俯卧位通...目的探讨改良俯卧位通气对清醒病毒性肺炎患者呼吸循环、康复指标、并发症的影响。方法选取2021年8月—2023年6年就诊的134例病毒性肺炎,按照随机数字表法分为研究组、对照组,各67例,对照组采用常规俯卧位通气,研究组采用改良俯卧位通气。比较2组康复指标、血气指标[氧合指数(PaO_(2)/FiO_(2))、动脉血二氧化碳分压(PaCO_(2))、动脉血氧分压(PaO_(2))、血氧饱和度(SpO_(2))]、血流动力学指标[心率(HR)、中心静脉压(CVP)、平均动脉压(MAP)]、呼吸功能指标[平台压(Pplat)、气道峰压(Ppeak)、平均气道压(Pmean)]、炎症指标[白细胞介素-6(IL-6)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)、肿瘤坏死因子-α(TNF-α)]、并发症及压力性损伤发生率。结果研究组住院时间短于对照组(P<0.05);2组俯卧2、4、8、12、16 h PaCO_(2)、PaO_(2)、PaO_(2)/FiO_(2)、SpO_(2),以及俯卧24、36 h时Ppeak、Pmean、Pplat、GM-CSF、IL-6、TNF-α均较俯卧前得以明显改善(P<0.05),但2组间比较差异无统计学意义(P>0.05);2组组间、组内不同时间点CVP、MAP、HR比较,差异无统计学意义(P>0.05);研究组并发症总发生率2.99%(2/67)低于对照组11.94%(8/67),压力性损伤发生率2.99%(2/67)低于对照组13.43%(9/67)(P<0.05)。结论在清醒病毒性肺炎患者中,改良俯卧位通气可达到与常规俯卧位通气相近的辅助治疗效果,能改善机体氧合功能、呼吸循环功能,降低并发症及压力性损伤发生风险,加速病情康复。展开更多
Endothelial PAS domain protein 1（EPAS1）, also called hypoxia-inducible factor-2, is a key regulatory factor of hypoxic responses and plays an essential role in high-altitude adaptation in mammalian species. In this ...Endothelial PAS domain protein 1（EPAS1）, also called hypoxia-inducible factor-2, is a key regulatory factor of hypoxic responses and plays an essential role in high-altitude adaptation in mammalian species. In this study, polymorphisms of EPAS1 were detected in 217 individuals from 2 Tibetan pig populations and 3 low-altitude pig breeds by DNA pooling, PCR-SSCP, PCR-RFLP and DNA sequencing methods. A total of 14 synonymous polymorphisms were identified in the coding region. The analysis suggested that SNP1（G963A）, SNP7（C1632T）, SNP10（G1929A） and SNP11（G1947A） showed potential association with high-altitude environment because of their particular variation patterns in Tibetan pigs. Linkage disequilibrium（LD） of these SNPs was analyzed. One common LD block including 5 SNPs clustering in exon 12 was identified in all studied pig populations. Haplotype H1（AGGTC） in LD block was dominant in Tibetan pigs（76.6 and 74.2% in Linzhi（LZ） and Chayu（CY） pigs, respectively） and segregated at higher frequency than that in low-altitude pig breeds（52.3, 58.7 and 56.2% in Wuzhishan（WZS）, Min（M） and Laiwu（LW） pigs, respectively）, indicating that H1 may relate to adaptation to high altitude in Tibetan pigs. These findings raise hope that EPAS1 gene can be a candidate gene that involved in adaptation of high altitude in Tibetan pigs.展开更多
Taking No.3 alfalfa(Medicago sativa)as the material,the effects of selenium and cobalt elements on seed germination of alfalfa at different temperatures were studied through germination test.The results showed that se...Taking No.3 alfalfa(Medicago sativa)as the material,the effects of selenium and cobalt elements on seed germination of alfalfa at different temperatures were studied through germination test.The results showed that selenium and cobalt promoted seed germination of alfalfa,and improved germination potential,germination rate,germination index and vigor index.With the increasing proportion of selenium and cobalt,the numerical value of each index first increased then decreased.The seed germinations in A15 and B12 treatments were the best at 10℃ and 20℃,while those in A1 and B1 treatments were the worst.展开更多
【目的】研究新疆特克斯河斑重唇鱼形态特征及年龄与生长等生态学特性。【方法】2019~2021年采样观察特克斯河斑重唇鱼,运用经典生物学测量方法鉴定年龄,分析其生长性状。【结果】特克斯河斑重唇鱼,体延长,被细鳞,侧线完全,形态特征不...【目的】研究新疆特克斯河斑重唇鱼形态特征及年龄与生长等生态学特性。【方法】2019~2021年采样观察特克斯河斑重唇鱼,运用经典生物学测量方法鉴定年龄,分析其生长性状。【结果】特克斯河斑重唇鱼,体延长,被细鳞,侧线完全,形态特征不同于其他水系,差异较大,体背色泽灰褐色,有不同的黑色斑点,腹部浅黄泛灰白。斑重唇鱼,体长均值(143.66±57.94)mm,体重均值(64.81±92.10)g,年龄均值(4.08±2.49*);体长与体重拟合关系式为W_(总)=5.80×10^(-6) L ^(3.1653)(R^(2)=0.9521),属于异速生长;体长与体高、头长、吻长、眼间距、尾柄长和尾柄高相关性较高,与体宽和眼径的相关性较低。特克斯河斑重唇鱼(n=120)渐进体长L_(∞)=346.79 mm,k=0.07,W_(∞)=634.97 g,t_(0)=-0.34,t_(i)=12.46。生长方程:L_(t)=346.79(1-e^(-0.09(t+0.34))),W_(t)=634.97(1-e^(-0.09(t+0.34)))3.1653。【结论】特克斯河斑重唇鱼形态不同于其他水系,高原冷水鱼类,属异速生长,适应性欠佳,拐点年龄大,生长缓慢,生长性状不稳定。展开更多
文摘目的本文旨在通过计量学分析探讨近十年国内外运动处方的研究进展,分析该领域国内外关注热点及发展趋势异同点,为我国运动处方制定提供参考意见,以期进一步推动该领域的发展。方法从中国知网和Web of Science数据库中筛选出相关的中英文文献。利用数据库内置的计量统计和可视化显示功能,以及陈超美博士开发的CiteSpace V软件,对文献进行可视化演示分析和知识图谱绘造。结果通过信息检索和甄选,共获得449篇中文文献和2923篇英文文献。分析结果显示,国内外对运动处方研究的关注度呈稳定并有上升趋势,其关注热点主要集中在体医融合领域。相较于国外研究的广泛和细化程度,国内研究相对局限,国外更注重多学科交叉融合研究。其中,慢性病防治是现在研究热点;扩大运动处方适用范围,并不局限于治病领域将会是未来重要研究方向。结论国内的未来研究应加强多学科交叉融合,扩大运动处方研究范围和对象,更加科学合理有效地适用于老年群体,为未来促进老年人身体健康、延年益寿指引方向。
文摘目的探讨改良俯卧位通气对清醒病毒性肺炎患者呼吸循环、康复指标、并发症的影响。方法选取2021年8月—2023年6年就诊的134例病毒性肺炎,按照随机数字表法分为研究组、对照组,各67例,对照组采用常规俯卧位通气,研究组采用改良俯卧位通气。比较2组康复指标、血气指标[氧合指数(PaO_(2)/FiO_(2))、动脉血二氧化碳分压(PaCO_(2))、动脉血氧分压(PaO_(2))、血氧饱和度(SpO_(2))]、血流动力学指标[心率(HR)、中心静脉压(CVP)、平均动脉压(MAP)]、呼吸功能指标[平台压(Pplat)、气道峰压(Ppeak)、平均气道压(Pmean)]、炎症指标[白细胞介素-6(IL-6)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)、肿瘤坏死因子-α(TNF-α)]、并发症及压力性损伤发生率。结果研究组住院时间短于对照组(P<0.05);2组俯卧2、4、8、12、16 h PaCO_(2)、PaO_(2)、PaO_(2)/FiO_(2)、SpO_(2),以及俯卧24、36 h时Ppeak、Pmean、Pplat、GM-CSF、IL-6、TNF-α均较俯卧前得以明显改善(P<0.05),但2组间比较差异无统计学意义(P>0.05);2组组间、组内不同时间点CVP、MAP、HR比较,差异无统计学意义(P>0.05);研究组并发症总发生率2.99%(2/67)低于对照组11.94%(8/67),压力性损伤发生率2.99%(2/67)低于对照组13.43%(9/67)(P<0.05)。结论在清醒病毒性肺炎患者中,改良俯卧位通气可达到与常规俯卧位通气相近的辅助治疗效果,能改善机体氧合功能、呼吸循环功能,降低并发症及压力性损伤发生风险,加速病情康复。
基金supported by the National Natural Science Foundation of China(31272403)the Determination of Molecular Characterization for Genetically Modified Organism,China(2013ZX08012-002)the Livestock and Poultry Sharing Platform in China(2013)
文摘Endothelial PAS domain protein 1（EPAS1）, also called hypoxia-inducible factor-2, is a key regulatory factor of hypoxic responses and plays an essential role in high-altitude adaptation in mammalian species. In this study, polymorphisms of EPAS1 were detected in 217 individuals from 2 Tibetan pig populations and 3 low-altitude pig breeds by DNA pooling, PCR-SSCP, PCR-RFLP and DNA sequencing methods. A total of 14 synonymous polymorphisms were identified in the coding region. The analysis suggested that SNP1（G963A）, SNP7（C1632T）, SNP10（G1929A） and SNP11（G1947A） showed potential association with high-altitude environment because of their particular variation patterns in Tibetan pigs. Linkage disequilibrium（LD） of these SNPs was analyzed. One common LD block including 5 SNPs clustering in exon 12 was identified in all studied pig populations. Haplotype H1（AGGTC） in LD block was dominant in Tibetan pigs（76.6 and 74.2% in Linzhi（LZ） and Chayu（CY） pigs, respectively） and segregated at higher frequency than that in low-altitude pig breeds（52.3, 58.7 and 56.2% in Wuzhishan（WZS）, Min（M） and Laiwu（LW） pigs, respectively）, indicating that H1 may relate to adaptation to high altitude in Tibetan pigs. These findings raise hope that EPAS1 gene can be a candidate gene that involved in adaptation of high altitude in Tibetan pigs.
基金Supported by Key Scientific and Technological Project of Guangxi Province(GKG15248003-21)Basic Scientific Research Project of Animal Husbandry Research Institute of Guangxi Zhuang Au-tonomous Region(GMYK2019-10)
文摘Taking No.3 alfalfa(Medicago sativa)as the material,the effects of selenium and cobalt elements on seed germination of alfalfa at different temperatures were studied through germination test.The results showed that selenium and cobalt promoted seed germination of alfalfa,and improved germination potential,germination rate,germination index and vigor index.With the increasing proportion of selenium and cobalt,the numerical value of each index first increased then decreased.The seed germinations in A15 and B12 treatments were the best at 10℃ and 20℃,while those in A1 and B1 treatments were the worst.
文摘【目的】研究新疆特克斯河斑重唇鱼形态特征及年龄与生长等生态学特性。【方法】2019~2021年采样观察特克斯河斑重唇鱼,运用经典生物学测量方法鉴定年龄,分析其生长性状。【结果】特克斯河斑重唇鱼,体延长,被细鳞,侧线完全,形态特征不同于其他水系,差异较大,体背色泽灰褐色,有不同的黑色斑点,腹部浅黄泛灰白。斑重唇鱼,体长均值(143.66±57.94)mm,体重均值(64.81±92.10)g,年龄均值(4.08±2.49*);体长与体重拟合关系式为W_(总)=5.80×10^(-6) L ^(3.1653)(R^(2)=0.9521),属于异速生长;体长与体高、头长、吻长、眼间距、尾柄长和尾柄高相关性较高,与体宽和眼径的相关性较低。特克斯河斑重唇鱼(n=120)渐进体长L_(∞)=346.79 mm,k=0.07,W_(∞)=634.97 g,t_(0)=-0.34,t_(i)=12.46。生长方程:L_(t)=346.79(1-e^(-0.09(t+0.34))),W_(t)=634.97(1-e^(-0.09(t+0.34)))3.1653。【结论】特克斯河斑重唇鱼形态不同于其他水系,高原冷水鱼类,属异速生长,适应性欠佳,拐点年龄大,生长缓慢,生长性状不稳定。
