文献类型： 外文期刊

作者： Zhang, Hao ¹ ; Chen, Yanan ¹ ; Chen, Yueping ¹ ; Li, Yue ⁵ ; Jia, Peilu ¹ ; Ji, Shuli ¹ ; Zhou, Yanmin ¹ ; Wang, Tian ¹ ;

作者机构： 1.Nanjing Agr Univ, Coll Anim Sci & Technol, Nanjing 210095, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Coll Vet Med, Postdoctoral Res Stn Clin Vet Med, Nanjing 210095, Jiangsu, Peoples R China

3.Shanghai Key Lab Vet Biotechnol, Shanghai 200240, Peoples R China

4.Nanjing Agr Univ, Coll Food Sci & Technol, Postdoctoral Res Stn Food Sci & Engn, Nanjing 210095, Jiangsu, Peoples R China

5.Jiangsu Acad Agr Sci, Inst Anim Sci, Nanjing 210014, Peoples R China

关键词： broiler; immunological stress; intestinal injury; lipopolysaccharide; oxidative damage; pterostilbene

期刊名称：JOURNAL OF ANIMAL SCIENCE （ 影响因子：3.159； 五年影响因子：2.912 ）

ISSN： 0021-8812

年卷期： 2020 年 98 卷 1 期

页码：

收录情况： SCI

摘要： The present study explored the potential effect of pterostilbene as a prophylactic treatment on the lipopolysaccharide (LPS)-induced intestinal injury of broiler chickens by monitoring changes in mucosal injury indicators, redox status, and inflammatory responses. In total, 192 one-day-old male Ross 308 broiler chicks were randomly divided into four groups. This trial consisted of a 2 x 2 factorial design with a diet factor (supplemented with 0 or 400 mg/kg pterostilbene from 1 to 22 d of age) and a stress factor (intraperitoneally injected with saline or LPS at 5.0 mg/kg BW at 21 da of age). The results showed that LPS challenge induced a decrease in BW gain (P < 0.001) of broilers during a 24-h period postinjection; however, this decrease was prevented by pterostilbene supplementation (P = 0.031). Administration of LPS impaired the intestinal integrity of broilers, as indicated by increased plasma diamine oxidase (DAO) activity (P = 0.014) and D-lactate content (P < 0.001), reduced jejunal villus height (VH; P < 0.001) and the ratio of VH to crypt depth (VH:CD; P < 0.001), as well as a decreased mRNA level of jejunal tight junction protein 1 (ZO-1; P = 0.002). In contrast, pterostilbene treatment increased VH:CD (P = 0.018) and upregulated the mRNA levels of ZO-1 (P = 0.031) and occludin (P = 0.024) in the jejunum. Consistently, pterostilbene counteracted the LPS-induced increased DAO activity (P = 0.011) in the plasma. In addition, the LPS-challenged broilers exhibited increases in nuclear accumulation of nuclear factor kappa B (NF-kappa B) p65 (P < 0.001), the protein content of tumor necrosis factor a (P = 0.033), and the mRNA abundance of IL-1 beta (P = 0.042) and nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3; P = 0.019). In contrast, pterostilbene inhibited the nuclear translocation of NF-kappa B p65 (P = 0.039) and suppressed the mRNA expression of IL-1 beta (P = 0.003) and NLRP3 (P = 0.049) in the jejunum. Moreover, pterostilbene administration induced a greater amount of reduced glutathione (P = 0.017) but a lower content of malondialdehyde (P = 0.023) in the jejunum of broilers compared with those received a basal diet. Overall, the current study indicates that dietary supplementation with pterostilbene may play a beneficial role in alleviating the intestinal damage of broiler chicks under the conditions of immunological stress.