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A study of bile canalicular contractions in isolated hepatocytes

✍ Scribed by M. James Phillips; Chikara Oshio; Mamoru Miyairi; Hart Katz; Charles R. Smith


Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
739 KB
Volume
2
Category
Article
ISSN
0270-9139

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✦ Synopsis


Living hepatocytes observed under standard methods of cell isolation and culture show frequent active contractions of bile canaliculi when viewed by time-lapse cinephotomicrography. This report gives details of the methods used to show the contractions. In addition, the characteristics of the contraction pattern are defined and analyzed. The contractions are regular, canalicular contraction time (systole) lasts 60 sec, and the most probably interval between contractions is 5 1/2 min. The finding of a regular pattern of contraction suggests an ordered, programmed, and integrated mechanism which entails a high degree of communication and functional coordination between neighboring hepatocytes.


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