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The ameliorative effects of Nigella sativa, thymoquinone, and bentonite against aflatoxicosis in broilers via AFAR and Nrf2 signalling pathways, and down-regulation of caspase-3    
Yazarlar
Mehmet Burak Ateş
Selçuk Üniversitesi, Türkiye
Mustafa Ortatatlı
Selçuk Üniversitesi, Türkiye
Halis Uğuz
Türkiye
Özgür Özdemir
Selçuk Üniversitesi, Türkiye
Doç. Dr. Funda TERZİ Doç. Dr. Funda TERZİ
Kastamonu Üniversitesi, Türkiye
Mustafa Kemal Çiftçi
İstanbul Gelişim Üniversitesi, Türkiye
Fatih Hatipoğlu
Selçuk Üniversitesi, Türkiye
Özet
1. Aflatoxins (AFs) are metabolites which especially have toxic effects on proteins, and are detoxified by the aflatoxin-B1 aldehyde reductase (AFAR) pathway. In this pathway, the aldo-keto reductase family 7, member A2 (AKR7A2) enzyme, which is controlled by nucleic-related erythroid factor 2 (Nrf2), plays an active role. However, data on the efficacy of this critical pathway in broilers is limited. 2. The aim of the following study was to investigate the changes in the expression levels of AKR7A2, Nrf2, and caspase-3, and the effects of Nigella sativa seeds (NS), thymoquinone (TMQ), and bentonite (BNT) in broilers exposed to AFs. 3. One-hundred broilers were divided into ten groups (control (CNT); AF; NS; TMQ; BNT; AF+TMQ; AF+NS; AF+BNT; AF+BNT+NS; AF+BNT+TMQ) and fed for 28 d. AF, TMQ, NS and BNT were added to diets at levels of 2 mg/kg, 300 mg/kg, 50 g/kg and 10 g/kg respectively. 4. The addition of AF to the diet decreased AKR7A2 and Nrf2 levels dramatically, but increased caspase-3 (P < 0.01). TMQ, NS and BNT additions to the diet eliminated all negative effects caused by AF (P < 0.01); and AKR7A2 and Nrf2 were further raised in TMQ and NS groups when compared to the control group. TMQ and NS showed a positive effect on detoxification parameters when given together with BNT. 5. Supplementation with NS and TMQ enhanced AF detoxification via the AFAR pathway, by increasing AKR7A2 and Nrf2 levels, in addition to reducing hepatocyte apoptosis.
Anahtar Kelimeler
AKR7A2 | apoptosis | black cumin | liver | Mycotoxin | Nrf2
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı British Poultry Science
Dergi ISSN 0007-1668
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 06-2022
Cilt No 63
Sayı 3
Sayfalar 332 / 339
Doi Numarası 10.1080/00071668.2021.1998366
Makale Linki https://www.tandfonline.com/doi/full/10.1080/00071668.2021.1998366