Increasing stocking density causes inhibition of metabolic–antioxidant enzymes and elevates mRNA levels of heat shock protein 70 in rainbow trout

2011 ◽  
Vol 141 (1) ◽  
pp. 69-75 ◽  
Author(s):  
Ercüment Aksakal ◽  
Deniz Ekinci ◽  
Orhan Erdoğan ◽  
Şükrü Beydemir ◽  
Zuhal Alım ◽  
...  
Keyword(s):  
Antioxidant Enzymes ◽  
Rainbow Trout ◽  
Heat Shock ◽  
Heat Shock Protein ◽  
Heat Shock Protein 70 ◽  
Stocking Density ◽  
Mrna Levels

Influence of stock density on digestive enzyme activity (trypsin), heat shock protein 70 (HSP70), and oxidative stress biomarkers of narrow clawed crayfish, Astacus leptodactylus Eschscholtz, 1823 (Decapoda, Astacidae)

Crustaceana ◽  
2016 ◽  
Vol 89 (10) ◽  
pp. 1193-1202 ◽  
Author(s):  
Ö. Aksu ◽  
F. Kutluyer ◽  
E. Can ◽  
M. Eri̇şi̇r ◽  
F. Benzer
Keyword(s):  
Oxidative Stress ◽  
Enzyme Activity ◽  
Heat Shock ◽  
Heat Shock Protein ◽  
Heat Shock Protein 70 ◽  
Digestive Enzyme ◽  
Stocking Density ◽  
Astacus Leptodactylus ◽  
Oxidative Stress Biomarkers ◽  
Stress Biomarkers

Stocking density causes changes in behaviour and physiology of aquatic animals and high density can cause oxidative damage in living cells. Therefore, experiments were designed to investigate the effects of stocking density on the oxidant-antioxidant response (glutathione (GSH), glutathione peroxidase (GSH-Px), catalase (CAT), and malondialdehyde (MDA)), digestive enzyme activity (trypsin), and heat shock protein 70 (HSP70) of narrow clawed crayfish (Astacus leptodactylus). The experiment was conducted to assess effects by stocking 3, 6, 9 and 12 crayfish/m2. Crayfish were stocked into 12 fiberglass tanks, three replicates per treatment and fed for 45 days. Our results indicated that activity of GSH-Px, MDA, and GSH levels increased in hepatopancreas () and muscle tissues () with increasing stock concentration while CAT activity decreased (). Trypsin and HSP70 insignificantly increased in haemolymph. In conclusion, oxidative stress biomarkers were negatively influenced by increased quantitative changes in stocking density.

Handling stress does not affect the expression of hepatic heat shock protein 70 and conjugation enzymes in rainbow trout treated with β-naphthoflavone

Life Sciences ◽  
1997 ◽  
Vol 61 (2) ◽  
pp. 117-127 ◽  
Author(s):  
Mathilakath M. Vijayan ◽  
Cristina Pereira ◽  
Robert B. Forsyth ◽  
Christopher J. Kennedy ◽  
George K. Iwama
Keyword(s):  
Rainbow Trout ◽  
Heat Shock ◽  
Heat Shock Protein ◽  
Heat Shock Protein 70 ◽  
Handling Stress

Creutzfeldt-Jakob disease: heat shock protein 70 mRNA levels in mononuclear blood cells and clinical study

2000 ◽  
Vol 247 (12) ◽  
pp. 929-934 ◽  
Author(s):  
Woei-Cherng Shyu ◽  
Ming-Ching Kao ◽  
Wei-Yuan Chou ◽  
Yaw-Don Hsu ◽  
Bing-Wen Soong
Keyword(s):  
Clinical Study ◽  
Heat Shock ◽  
Heat Shock Protein ◽  
Blood Cells ◽  
Heat Shock Protein 70 ◽  
Mrna Levels ◽  
Jakob Disease ◽  
Mononuclear Blood Cells
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