{{'Search' | translate}}
 

Hybridization oven

Company: Cytiva
Catalog#: RPN2511E
Bio-protocol()
Company-protocol()
Other protocol()

Modification and Application of a Commercial Whole-body Plethysmograph to Monitor Respiratory Abnormalities in Neonatal Mice
Author:
Date:
2017-06-20
[Abstract]  Proper breathing is essential for mammals to acquire oxygen after birth and requires coordinated actions among several tissues, including diaphragm, intercostal muscles, trachea, bronchi, lung and respiration-regulating neurons located in the medulla oblongata. Genetically modified mice that die early postnatally may have respiratory defects caused by maldevelopment of any one of these tissues (Turgeon and Meloche, 2009). Because of the small body size of neonatal pups, whole-body plethysmography can be used to monitor their respiratory activities. In this protocol, we modified the commercial whole-body plethysmograph by increasing metal filters in the pneumotach, connecting an extension tube to the pneumotach and removing the bias flow supply. With these modifications, the sensitivity of ... [摘要]  正确的呼吸对于哺乳动物在出生后获得氧气是必需的,并且需要在位于延髓中的几个组织之间的协调作用,包括隔膜,肋间肌肉,气管,支气管,肺和呼吸调节神经元。 在死后早期死亡的转基因小鼠可能由于这些组织中的任何一种发育不良而引起呼吸道缺陷(Turgeon和Meloche,2009)。 由于新生儿小体型体积小,全身体积描记法可用于监测其呼吸活动。 在本协议中,我们通过增加冲击中的金属过滤器来修改商业全身体积描记器,将延伸管连接到喘振器并除去偏流装置。 通过这些修改,该装置的敏感性显着增加,以便能够在出生后第1天(P1)之前检测新生小鼠的节律性呼吸。
【背景】几个实验室使用自制或定制的体积描记器装置来鉴定转基因新生小鼠的呼吸衰竭(Nsegbe等人,2004; Crone等,2012)。然而,对于这一领域的新手和想要调查小鼠新生儿致死原因的研究人员来说,商业全身体积描记器(WBP,Buxco系统,DSI)是一个合理的选择。
当我们第一次建立这个系统来监测P0小鼠的呼吸时,C57BL / 6新生儿的呼吸活动大部分时间都不能检测到,直到小鼠达到3天龄。因为WBP测量动物室内的压力变化,这是由于呼吸过程中被动物肺吸收和加热的灵感空气引起的,因此增加该装置的检测灵敏度是在P3之前监测C57BL / 6新生儿呼吸的唯一方法。
在本协议中,我们分享了我们在修改该系统方面的经验,可以早在P1和P0可靠地检测C57BL ...

Comments