基于遥测技术对巴马小型猪部分生理指标的观测
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浙江省科技厅实验动物科技计划项目(2012C37078)。


Measurement of physiological parameters in Bama minipigs by telemetry technology
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    摘要:

    目的 应用遥测技术观察巴马小型猪在清醒自由状态下心电、血压、呼吸、活动等指标昼夜波动变化。方法 取雄性6月龄巴马小型猪6只,行浅表股动脉VAP血管通路植入手术,恢复7 d后,用EMAK遥测系统进行24 h连续清醒自由状态下心电、血压、呼吸、活动指标监测,并用EMAK分析软件对上述指标进行分析。结果 6月龄巴马小型猪心电、血压、呼吸、活动都有昼夜节律变化,白昼心率显著高于黑夜心率(P< 0.01),且白昼PR间期、QRS间期与QT间期均显著低于黑夜(P< 0.05,P< 0.01),白昼平均心率为76.22次/分,黑夜平均心率为67.03次/分,白昼平均PR间期、QRS间期和QT间期分别为109.97 ms、42.72 ms、380.37 ms,黑夜平均PR间期、QRS间期和QT间期为112.32 ms、44.01 ms、389.24 ms。巴马小型猪白昼收缩压、舒张压、平均压都显著高于夜间(P< 0.01),白昼平均收缩压、舒张压、平均压分别为129.57 mmHg、96.75 mmHg、111.73 mmHg,夜间平均收缩压、舒张压、平均压分别为122.81 mmHg、92.65 mmHg、106.19 mmHg,且黑夜收缩压、舒张压、平均压下降率分别为19.89%、19.05%、19.35%。另外,巴马小型猪在白昼的活动情况与呼吸频率都要显著高于夜间(P< 0.01)。结论 利用遥测技术可以对清醒自由状态下巴马小型猪心电、血压、呼吸、活动等进行连续监测,能真实的反应小型猪在24 h内上述生理指标的变化规律,为巴马小型猪在药理毒理研究中的应用提供参考。

    Abstract:

    Objective To measure the circadian rhythm of consecutive monitoring electrocardiogram(ECG), blood pressure, respiration, activities in Bama minipigs by telemetry technology. Methods Six 6-month-old Bama minipigs were implanted with VAP port in Superficial femoral artery, after recovery 7 days, 24 hours ECG, blood pressure, activity and respiratory parameters were recorded and analyzed in the EMAK noninvasive telemetry system. Results The ECG, blood pressure, respiration and activities in Bama minipigs showed circadian rhythm changes, Bama minipigs daytime heart rate was significantly higher than the nighttime heart rate (P< 0.01), and daytime PR interval, QRS interval and QT interval was significantly lower than the nighttime (P< 0.05, P< 0.01), daytime mean heart rate was 76.22 beats/min, nighttime mean heart rate was 67.03 night beats/min; daytime mean PR interval, QRS interval and QT interval were 109.97 ms, 42.72 ms and 380.37 ms, nighttime mean PR interval, QRS interval and QT interval were 112.32ms, 44.01ms and 389.24ms. Bama minipigs daytime systolic blood pressure, diastolic blood pressure and mean blood pressure were significantly higher than the nighttime (P< 0.01), daytime mean systolic blood pressure, diastolic blood pressure and mean blood pressure were 129.57 mmHg, 96.75 mmHg and 111.73 mmHg, nighttime mean systolic blood pressure, diastolic blood pressure, mean blood pressure were 122.81 mmHg, 92.65 mmHg and 106.19 mmHg, and the nighttime reduction rate of systolic blood pressure, diastolic blood pressure and mean blood pressure were 19.89%, 19.05% and 19.35%. In addition, Bama minipigs daytime activity and respiratory rate were significantly higher than the nighttime (P< 0.01). Conclusion It's Feasible to measure the circadian rhythm of electrocardiogram(ECG), blood pressure, activity and respiratory parameters in Bama minipigs by telemetry technology, and can truly shows those physiological parameters of the Bama minipigs within 24h, to provide a reference for pharmacology and toxicology research by using Bama minipigs.

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陈亮,潘永明,朱科燕,陈方明,徐孝平,陈民利.基于遥测技术对巴马小型猪部分生理指标的观测[J].中国比较医学杂志,2014,24(7):30~36.

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  • 最后修改日期:2014-05-06
  • 在线发布日期: 2014-08-19
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