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400038 重庆,陆军军医大学(第三军医大学)第一附属医院肿瘤科
[梁后杰,E-mail: lianghoujie@sina.com LIANG Houjie, E-mail: lianghoujie@sina.com
收稿:2019-11-25,
修回:2020-02-02,
纸质出版:2020-04-15
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郑文玲, 陈艳荣, 欧娟娟, 等. 奥沙利铂致大鼠慢性外周神经毒性的背根神经节内神经递质类物质靶标定量检测研究[J]. 第三军医大学学报, 2020,42(7):684-691.
Wenling ZHENG, Yanrong CHEN, Juanjuan OU, et al. Quantitative detection of targeted neurotransmitters in dorsal root ganglia in rats with chronic peripheral neurotoxicity caused by oxaliplatin[J]. Journal of Third Military Medical University, 2020, 42(7): 684-691.
郑文玲, 陈艳荣, 欧娟娟, 等. 奥沙利铂致大鼠慢性外周神经毒性的背根神经节内神经递质类物质靶标定量检测研究[J]. 第三军医大学学报, 2020,42(7):684-691. DOI: 10.16016/j.1000-5404.201911199.
Wenling ZHENG, Yanrong CHEN, Juanjuan OU, et al. Quantitative detection of targeted neurotransmitters in dorsal root ganglia in rats with chronic peripheral neurotoxicity caused by oxaliplatin[J]. Journal of Third Military Medical University, 2020, 42(7): 684-691. DOI: 10.16016/j.1000-5404.201911199.
目的
2
观察大鼠慢性外周神经毒性模型中奥沙利铂对背根神经节中神经递质类物质浓度的影响。
方法
2
24只雄性SD大鼠(SPF级)按抽签法完全随机分为2组,每组12只,分别为模型组和对照组。采用多累积剂量、多频次腹腔注射(累积剂量48 mg/m
2
模拟人体剂量>1 200 mg/m
2
)的方法建立慢性外周神经毒性模型,利用神经递质类物质靶标定量检测筛选出背根神经内浓度显著改变的神经递质类物质。
结果
2
在奥沙利铂累积剂量为48 mg/m
2
时,可成功构建大鼠慢性外周神经毒性模型;其背根神经节内谷氨酰胺、L-谷氨酸、多巴胺、去甲肾上腺素、3、4-二羟基苯乙酸、香草扁桃酸的浓度较对照组明显增加,尤其以多巴胺及其代谢产物3、4-二羟基苯乙酸的增加最为显著。
结论
2
奥沙利铂慢性蓄积可导致背根神经节内部分神经递质类物质的浓度发生改变,可能与神经元损伤及慢性外周神经毒性发生有关。
Objective
2
To observe the effects of oxaliplatin on the concentration of neurotransmitters in dorsal root ganglia in a rat model of chronic peripheral neurotoxicity.
Methods
2
A total of 24 male SD rats (SPF grade) were randomly divided into model group and normal control group (
n
=12 in each group). The model of chronic peripheral neurotoxicity was established by multiple cumulative doses and multiple intraperitoneal injections (cumulative dose of 48 mg/m
2
simulated human dose
>
1 200 mg/m
2
). The neurotransmitters with significant concentration changes in the dorsal root were screened out by a quantitative detection.
Results
2
At a cumulative dose
of 48 mg/m
2
oxaliplatin
a rat model of chronic peripheral neurotoxicity was established successfully. In the dorsal root
the neurotransmitters with obviously increase in concentration were L-glutamine (58.54±10.46 nmol/L
P
<
0.05)
L-glutamic acid (43.12±7.76 nmol/L
P
<
0.05)
dopamine (0.03±0.02 nmol/L
P
<
0.01)
norepinephrine (0.25±0.04 nmol/L
P
<
0.05)
3、4-dihydroxyphenylacetic acid (0.41±0.01 nmol/L
P
<
0.01)
and vanillylmandelic acid (3.30±0.63 nmol/L
P
<
0.05) when compared with the normal control group. Among them
dopamine and its metabolite 3、4-dihydroxyphenylacetic acid were the most significant.
Conclusion
2
Chronic accumulation of oxaliplatin can cause changes in the concentration of neurotransmitters in the dorsal root ganglia
which may be related to neuronal damage and chronic peripheral neurotoxicity.
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