Abstract:
OBJECTIVE:Pancreatic ischemia-reperfusion (IR) has a key role in pancreas surgery and transplantation. Most experimental models evaluate the normothermic phase of the IR. We proposed a hypothermic model of pancreas IR to evaluate the benefic effects of the cold ischemic phase. METHODS:We performed a reproducible model of hypothermic pancreatic IR. The ischemia was induced in the pancreatic tail portion (1-hour ischemia, 4-hour reperfusion) in 36 Wistar rats. They are divided in 3 groups as follows: group 1 (control), sham; group 2, normothermic IR; and group 3, hypothermic IR. In group 3, the temperature was maintained as close to 4.5°C. After reperfusion, serum amylase and lipase levels, inflammatory mediators (tumor necrosis factor α, interleukin 6), and pancreas histology were evaluated. RESULTS:In pancreatic IR groups, amylase, cytokines, and histological damage were significantly increased when compared with group 1. In the group 3, we observed a significant decrease in tumor necrosis factor α (P = 0.004) and interleukin 6 (P = 0.001) when compared with group 2. We did not observe significant difference in amylase (P = 0.867), lipase (P = 0.993), and histology (P = 0.201). CONCLUSIONS:In our experimental model, we reproduced the cold phase of pancreas IR, and the pancreas hypothermia reduced the inflammatory mediators after reperfusion.
journal_name
Pancreasjournal_title
Pancreasauthors
Rocha-Santos V,Ferro OC,Pantanali CA,Seixas MP,Pecora RA,Pinheiro RS,Claro LC,Abdo EE,Chaib E,D'Albuquerque LAdoi
10.1097/MPA.0000000000000150subject
Has Abstractpub_date
2014-08-01 00:00:00pages
946-50issue
6eissn
0885-3177issn
1536-4828journal_volume
43pub_type
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