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Abstract Title:

Astaxanthin Reduces the Severity of Intestinal Damage in a Neonatal Rat Model of Necrotizing Enterocolitis.

Abstract Source:

Am J Perinatol. 2021 Apr 14. Epub 2021 Apr 14. PMID: 33853144

Abstract Author(s):

Hasan Akduman, Cuneyt Tayman, Veli Korkmaz, Filiz Akduman, Nurdan D Fettah, Başak K Gürsoy, Tugba T Turkmenoglu, Murat Çağlayan

Article Affiliation:

Hasan Akduman

Abstract:

OBJECTIVE:  This study aimed to ascertain the effects of astaxanthin (ASX) in an experimental necrotizing enterocolitis (NEC) model using rat pups.

STUDY DESIGN:  Forty-two pups born from five Wistar albino rats were randomly divided into three groups as the control group, NEC + placebo (saline), and NEC + ASX. Pups in the NEC + ASX group were given 100 mg/kg/day oral ASX from day 1 to day 4 of the study. Saline of 2 mL/kg was given to theNEC + placebo group. Histopathological, immunohistochemical (caspase-3), and biochemical evaluations including the total antioxidant status (TAS), total oxidant status (TOS), superoxide dismutase (SOD), glutathione (GSH), lipid hydroperoxide (LPO), 8-hydroxydeoxyguanosine (8-OHdG), advanced oxidation protein products (AOPP), myeloperoxidase (MPO), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and nuclear factor erythroid 2-related factor 2 (Nfr-2) activities were all performed.

RESULTS:  A better survival rate and weight gain were demonstrated in the NEC + ASX group ( < 0.05). In the histopathological evaluation, the severity of intestinal damage was significantly reduced in the NEC + ASX group, as well as decreased apoptosis (enzyme-linked immunosorbent assay [ELISA] for caspase-3; = 0.001). The biochemical analyses of intestinal tissue TOS, oxidative stress index (OSI; TOS/TAS), IL-1β, LPO, 8-OHdG, AOPP, caspase-3 ( < 0.001 for all), and TNF-α and MPO ( = 0.001 for both parameters) levels were lower in the NEC + ASX group than in the NEC + placebo group. Nrf-2, TAS, GSH, and SOD levels were higher in the NEC + ASX group than in the NEC + placebo group ( = 0.001, 0.001,<0.001, and 0.01, respectively).

CONCLUSION:  ASX treatment has been shown to effectively reduce the severity of intestinal damage in NEC due to its antioxidant, anti-inflammatory, and antiapoptotic properties.

KEY POINTS: · NEC causes extremely high morbidity and mortality, as well as many complications.. · We investigated the effectiveness of ASX in the experimental NEC model created in rat pups.. · First study examining the effect of ASX on the experimental NEC rat model..

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