
科学技术与工程

中国技术经济学会
肿瘤恶液质模型小鼠胃肠激素及胃肠黏膜结构的变化
Changes in Gastrointestinal Hormones and Gastrointestinal Mucosa Structure in Tumor Cachexia Model Mice
为探讨肿瘤恶液质模型小鼠胃肠激素水平及胃十二指肠黏膜结构的变化,将20只小鼠随机分为空白组和模型组,模型组通过肺癌原位移植建立肿瘤恶液质动物模型,观察体质量、肺质量、血红蛋白、血清总蛋白、血清白蛋白、血清胃蛋白酶原、血清饥饿素及胃、十二指肠黏膜变化。结果表明:实验第18天,模型组小鼠体质量为14.21 g±1.19 g,低于空白组19.09 g±0.63 g,有统计学差异(P<0.001);模型组小鼠肺质量为0.17 g±0.05 g,高于空白组0.14 g±0.02 g,无统计学差异(P>0.05);模型组小鼠血红蛋白、血清白蛋白和血清总蛋白分别为92.10 g/L±27.13 g/L、14.69 g/L±3.29 g/L、33.09 g/L±7.11 g/L,均低于空白组129.40 g/L±29.47 g/L、33.75 g/L±4.26 g/L、69.94 g/L±8.45 g/L,有统计学差异(P<0.01);模型组小鼠血清胃蛋白酶原、血清饥饿素分别为54.85 ng/mL±4.18 ng/mL、4292.34 ng/mL±431.57 ng/mL,均低于空白组72.18 ng/mL±6.94 ng/mL、5469.26 ng/mL±482.357 ng/mL,有统计学差异(P<0.01);模型组小鼠胃十二指肠黏膜不完整,绒毛结构受损变短,黏膜肌层结构不清晰。研究结果揭示了胃十二指肠黏膜受损以及胃肠激素分泌水平下降是肿瘤恶液质的发病机制的重要组成部分,也体现了中医“脾胃为气血生化之源”的理论思想。
To explore the changes in gastrointestinal hormone levels and gastric duodenal mucosal structure in tumor cachexia model mice.20 mice were randomly divided into a blank group and a model group. The model group established a tumor cachexia animal model through lung cancer in situ transplantation, and observed changes in body mass, lung mass, hemoglobin, serum total protein, serum albumin, serum pepsinogen, serum ghrelin, and gastric duodenal mucosa. On the 18th day of the experiment, the body weight of the model group mice was 14.21 g±1.19 g, which was lower than that of the blank group 19.09 g±0.63 g, with statistical differences (P<0.001). The lung mass of the model group mice was 0.17 g±0.05 g, which was higher than that of the blank group 0.14 g±0.02 g, with no statistical difference (P>0.05). The hemoglobin, serum albumin, and total serum protein of the model group mice were 92.10±27.13 g/L, 14.69 g/L±3.29 g/L, and 33.09 g/L±7.11 g/L, respectively, all lower than those of the blank group at 129.40 g/L±29.47 g/L, 33.75 g/L±4.26 g/L, and 69.94 g/L±8.45 g/L, with statistical differences (P<0.01). The serum levels of pepsinogen and serum ghrelin in the model group mice were 54.85 ng/mL±4.18 ng/mL and 4292.34 ng/mL±431.57 ng/mL, respectively, which were lower than those in the blank group at 72.18 ng/mL±6.94 ng/mL and 5469.26 ng/mL±482.357 ng/mL, respectively, with statistical differences (P<0.01). The model group of mice had incomplete gastric and duodenal mucosa, damaged and shortened villus structure, and unclear mucosal muscle layer structure. Damage to the gastric and duodenal mucosa and decreased secretion of gastrointestinal hormones are important components of the pathogenesis of tumor cachexia, and also reflect the theoretical idea of traditional Chinese medicine that “the spleen and stomach are the source of qi and blood biochemistry”.
肿瘤恶液质 / 血清胃蛋白酶原 / 血清饥饿素 / 胃十二指肠黏膜
cancer cachexia / serum pepsinogen / serum hunger hormone / gastroduodenal mucosa
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国家自然科学基金(81173178)
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