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Zebrafish Kidney's Response to Fasting
Animals obtain nutrition and energy by eating and to achieve a balance between growth and body health. When the nutrient intake is abnormal, the growth status changes, presumably resulting in changes in the intrinsic immune system. The zebrafish (Danio rerio), a well-known fish model organism, can serve as a suitable model to explore the changes happened to the innate immune system. In this study, the zebrafish underwent 3 weeks of fasting and refeeding for 3 to 7day periods. During this period, zebrafish displayed a specific growth phenomenon so called compensatory growth (CG), accompanied by increased susceptibility to pathogens after starvation. The kidneys suffering starvation displayed an increase of the amount of melano-macrophage centers and appeared oxidative stress, and the antioxidant enzymes activity like CAT, GSH-Px and SOD increased after fasting. In addition, the activity of ALP and lysozyme as well as il-1β mRNA expression enhanced after starvation. Taken together, oxidative stress caused by starvation and the danger-associated molecular patterns produced by injured renal tubules may have contributed to inflammation. This study showed that the function of the innate immune system in zebrafish could be influenced by nutrition status. Further study is needed to explore how starvation increases susceptibility and how the metabolic state influences different kinds of immune cells.
2.Changes in Body Weight and Antibacterial Properties of Zebrafish during Fasting and Refeeding
3. Morphologic Alterations of the Kidneys of Zebrafish during Fasting and Refeeding
4. Oxidative Stress Was Triggered during Fasting and Refeeding
5. The Innate Immune System of the Zebrafish Kidney Was Affected by Fasting and Refeeding
The entry is from 10.3390/biom11060825
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