期刊
FRONTIERS IN BIOSCIENCE-LANDMARK
卷 11, 期 -, 页码 570-580出版社
FRONTIERS IN BIOSCIENCE INC
DOI: 10.2741/1819
关键词
genetic polymorphism; necrotizing enterocolitis; preterm neonate; risk factors; review
Necrotizing enterocolitis (NEC) is a common, life-threatening neonatal gastrointestinal disease; it affects approximately 11% of extremely premature neonates. The etiology of NEC is multifactorial. Risk factors may roughly be grouped into four main categories: prematurity; transient ischemia of the intestine; local/systemic inflammation predisposing the bowel to injury, and therapeutic interventions. Recent studies have shown that carrier state of genetic polymorphisms may be associated with perinatal morbidity, including NEC. In perinatal disorders, the significance of genetic variants of cytokines, the renin-angiotensin-aldosterone system, and surfactant proteins have been investigated most widely. Positive findings indicate the implication of genetic polymorphisms of proinflammatory cytokines in premature birth; angiotensin converting enzyme in perinatal adaptation and angiotensin type 1 receptor in the closure of ductus arteriosus; surfactant proteins A and B in respiratory distress syndrome; interleukin (IL)-6 in sepsis, and IL-4-receptor alpha chain and IL-18 in NEC. This review provides an insight into the genetics of NEC and summarizes genetic data in light of pathologic processes leading to NEC.
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