为了解古新河鱼类群落结构特征,于2022年12月对该河进行了1次调查,共采集鱼类13种,隶属于2目4科,其中76.92%为鲤科(Cyprinidae)鱼类。古新河水域鱼类群落优势种为蒙古鲌(Culter mongolicus)、银鲫(Carassius auratus gibelio);4种摄食...为了解古新河鱼类群落结构特征,于2022年12月对该河进行了1次调查,共采集鱼类13种,隶属于2目4科,其中76.92%为鲤科(Cyprinidae)鱼类。古新河水域鱼类群落优势种为蒙古鲌(Culter mongolicus)、银鲫(Carassius auratus gibelio);4种摄食功能群中,杂食性(46.15%)和肉食性(38.46%)鱼类物种数比例较高,共占总物种数的84.62%;3种生态类群中,淡水定居性鱼类占绝大多数(84.62%)。群落Shannon-Wiener多样性指数值偏低,平均值为1.15,且在空间上有差异,1#的H′为0.76,不到2#的1/2,引起原因应与蒙古鲌等优势种空间分布不均及采样点间物种数不同有关。To understand the status of biodiversity and community structure of fish assemblage in the Guxin River, the resource survey was conducted in December 2022. A total of 13 species of fish were collected, belonging to 2 orders and 4 families. Among them, Cyprinidae had the largest number of species, accounting for 76.92%. Culter mongolicus and Carassius auratus gibelio were the dominant species in winter. Omnivorous (46.15%) and Carnivorous (38.46%) fish specices were the most frequent of the four feeding functional groups, which account for 84.62% of the total, and sedentary fish species (84.62%) were the most frequent of three ecological groups. The Shannon-Wiener diversity index of the community was relatively low, with an average value of 1.15. And there were spatial differences, with H′of 1# being 0.76, which was less than half of 2#. The reason for this should be related to the uneven spatial distribution of dominant species such as Mongolian culter and the different number of species between sampling points.展开更多
目的:探讨沉香化气胶囊对糖尿病(diabetes mellitus,DM)大鼠小肠Cajal间质细胞(interstitial cells of Cajal,ICC)、肌间神经丛的影响.方法:将健康♂SD大鼠分为正常对照组、DM模型组、DM模型+中药组.大鼠一次性腹腔注射(ip)链脲佐菌素(S...目的:探讨沉香化气胶囊对糖尿病(diabetes mellitus,DM)大鼠小肠Cajal间质细胞(interstitial cells of Cajal,ICC)、肌间神经丛的影响.方法:将健康♂SD大鼠分为正常对照组、DM模型组、DM模型+中药组.大鼠一次性腹腔注射(ip)链脲佐菌素(STZ,60mg/kg)造模,选取成功模型,DM模型+中药组每天给予中药灌胃,模型组和正常对照组每天给予同等容量的蒸馏水,持续灌胃4wk.所有大鼠干预4wk结束后,给予印度墨汁灌胃测定小肠传输速率,利用免疫组织化学和图像分析观察十二指肠c-Kit、突触素(synaptophysin,Syn)、蛋白基因产物9.5(protein gene product 9.5,PGP9.5)的表达.结果:灌胃4wk后,DM模型+中药组小肠传输速率均比DM模型组明显增加(71.26±5.22 vs 45.52±6.42,P<0.01),仍低于对照组(71.26±5.22 vs 80.40±7.33,P<0.05);DM模型+中药组c-Kit、突触素、PGP9.5的阳性产物面积和吸光度值均比DM模型组明显增加(443.28±24.40 vs 358.83±35.03,832.33±58.78 vs 488.83±58.56,889.17±82.75 vs 445.17±64.06,0.16±0.02 vs 0.13±0.02,0.25±0.02 vs 0.16±0.01,0.24±0.02 vs 0.15±0.01,均P<0.01),仍低于正常对照组(443.28±24.40 vs 557.28±42.35,P<0.01;832.33±58.78 vs 937.67±101.23,P<0.05;889.17±82.75 vs 1050.50±90.22,P<0.01;0.16±0.02 vs 0.18±0.02,P<0.05;0.25±0.02 vs 0.29±0.03,P<0.01;0.24±0.02 vs 0.27±0.02,P<0.01).结论:沉香化气胶囊可以促进糖尿病大鼠小肠肌间神经丛c-Kit、突触素和PGP9.5的表达,提示对受损的DM大鼠小肠ICC、肌间神经丛有部分恢复作用,从而对糖尿病大鼠的胃肠动力障碍有一定的改善效应.展开更多
文摘为了解古新河鱼类群落结构特征,于2022年12月对该河进行了1次调查,共采集鱼类13种,隶属于2目4科,其中76.92%为鲤科(Cyprinidae)鱼类。古新河水域鱼类群落优势种为蒙古鲌(Culter mongolicus)、银鲫(Carassius auratus gibelio);4种摄食功能群中,杂食性(46.15%)和肉食性(38.46%)鱼类物种数比例较高,共占总物种数的84.62%;3种生态类群中,淡水定居性鱼类占绝大多数(84.62%)。群落Shannon-Wiener多样性指数值偏低,平均值为1.15,且在空间上有差异,1#的H′为0.76,不到2#的1/2,引起原因应与蒙古鲌等优势种空间分布不均及采样点间物种数不同有关。To understand the status of biodiversity and community structure of fish assemblage in the Guxin River, the resource survey was conducted in December 2022. A total of 13 species of fish were collected, belonging to 2 orders and 4 families. Among them, Cyprinidae had the largest number of species, accounting for 76.92%. Culter mongolicus and Carassius auratus gibelio were the dominant species in winter. Omnivorous (46.15%) and Carnivorous (38.46%) fish specices were the most frequent of the four feeding functional groups, which account for 84.62% of the total, and sedentary fish species (84.62%) were the most frequent of three ecological groups. The Shannon-Wiener diversity index of the community was relatively low, with an average value of 1.15. And there were spatial differences, with H′of 1# being 0.76, which was less than half of 2#. The reason for this should be related to the uneven spatial distribution of dominant species such as Mongolian culter and the different number of species between sampling points.
文摘目的:探讨沉香化气胶囊对糖尿病(diabetes mellitus,DM)大鼠小肠Cajal间质细胞(interstitial cells of Cajal,ICC)、肌间神经丛的影响.方法:将健康♂SD大鼠分为正常对照组、DM模型组、DM模型+中药组.大鼠一次性腹腔注射(ip)链脲佐菌素(STZ,60mg/kg)造模,选取成功模型,DM模型+中药组每天给予中药灌胃,模型组和正常对照组每天给予同等容量的蒸馏水,持续灌胃4wk.所有大鼠干预4wk结束后,给予印度墨汁灌胃测定小肠传输速率,利用免疫组织化学和图像分析观察十二指肠c-Kit、突触素(synaptophysin,Syn)、蛋白基因产物9.5(protein gene product 9.5,PGP9.5)的表达.结果:灌胃4wk后,DM模型+中药组小肠传输速率均比DM模型组明显增加(71.26±5.22 vs 45.52±6.42,P<0.01),仍低于对照组(71.26±5.22 vs 80.40±7.33,P<0.05);DM模型+中药组c-Kit、突触素、PGP9.5的阳性产物面积和吸光度值均比DM模型组明显增加(443.28±24.40 vs 358.83±35.03,832.33±58.78 vs 488.83±58.56,889.17±82.75 vs 445.17±64.06,0.16±0.02 vs 0.13±0.02,0.25±0.02 vs 0.16±0.01,0.24±0.02 vs 0.15±0.01,均P<0.01),仍低于正常对照组(443.28±24.40 vs 557.28±42.35,P<0.01;832.33±58.78 vs 937.67±101.23,P<0.05;889.17±82.75 vs 1050.50±90.22,P<0.01;0.16±0.02 vs 0.18±0.02,P<0.05;0.25±0.02 vs 0.29±0.03,P<0.01;0.24±0.02 vs 0.27±0.02,P<0.01).结论:沉香化气胶囊可以促进糖尿病大鼠小肠肌间神经丛c-Kit、突触素和PGP9.5的表达,提示对受损的DM大鼠小肠ICC、肌间神经丛有部分恢复作用,从而对糖尿病大鼠的胃肠动力障碍有一定的改善效应.
