Author:
Wang Fu-Sheng,Yu Meng-Lu,Li Wei-Zhong,Hong Kai,Xu Chen-Bin,Wang Guang-Huan
Abstract
Abstract
Background
To explore the relationship between the pathological changes of the colon, terminal ileum, lung, liver and kidney, and the changes of Bax, PCNA and PAF in a rat model of NEC.
Methods
One hundred and forty neonatal SD rats were randomly divided into NEC group and control group (70 in each group). NEC group was given hypoxia, cold stimulation and artificial feeding twice a day for 3 consecutive days. The control group was only fed normally. After modeling, From the 1st day to the 7th day, 10 rats were sampled in each group for pathological examination of colon, terminal ileum, lung, liver and kidney tissue. The levels of Bax, PCNA and PAF were investigated by immunohistochemistry.
Results
Compared with the normal group, in the NEC group, on the 1st day, the colon, terminal ileum, lung, liver and kidney showed inflammatory damage. On the 5th day, the inflammatory injury was reduced. The inflammation disappeared on the 7th day. There were differences in the time of apoptosis in the intestine. In the intestine, the proliferation of PCNA was weak at first and then strong. Bax in liver and kidney showed marked apoptosis and apoptosis time increased in the lung. The expression of PCNA increased in lung, liver and kidney, and the expression of PAF increased in lung and liver.
Conclusions
NEC can lead to secondary injury of different degrees in colon, terminal ileum, lung, liver and kidney, and the degree and time of injury and repair were different. In general, organ repair played a leading role on the 4th day after modeling.
Funder
Shantou Science and Technology Projec
Publisher
Springer Science and Business Media LLC
Subject
Pediatrics, Perinatology and Child Health
Reference17 articles.
1. Caplan MS, Fanaroff A. Necrotizing: a historical perspective. Semin Perinatol. 2016;41:2–6.
2. Tanner SM, Berryhill TF, Ellenburg JL, Jilling T, Cleveland DS, Lorenz RG, et al. Pathogenesis of necrotizing enterocolitis: modeling the innate immune response. Am J Pathol. 2015;185:4–16.
3. Ates U, Gollu G, Kucuk G, Billur D, Bingol-Kologlu M, Yılmaz Y, et al. Increase in pro-apoptotic bax expression and decrease in anti-apoptotic bcl-2 expression in newborns with necrotizing enterocolitis. Arch Argent Pediatr. 2016;114:243–7.
4. Miyake H, Li B, Lee C, Koike Y. Liver damage, proliferation, and progenitor cell markers in experimental necrotizing enterocolitis. J Pediatr Surg. 2018;53:909–13.
5. Rabinowitz SS, Dzakpasu P, Piecuch S, Leblanc P, Valencia G, Kornecki E. Platelet-activating factor in infants at risk for necrotizing enterocolitis. J Pediatr. 2001;138:81–6.
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献