Comparison and relationship between meat colour and antioxidant capacity of different pig breeds

2018 ◽  
Vol 58 (11) ◽  
pp. 2152 ◽  
Author(s):  
Wei Chen ◽  
Qi-fan Zeng ◽  
Hai-peng Xu ◽  
Guo-feng Fang ◽  
Shou-dong Wang ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Superoxide Dismutase Activity ◽  
Pig Breeds ◽  
Total Antioxidant ◽  
Hue Angle ◽  
Meat Colour ◽  
Crossbred Pigs ◽  
Visual Colour

The objectives of this study were to evaluate meat colour, antioxidant performance of longissimus muscle in different pig breeds, including five Chinese native pig breeds, a Chinese bred pig breed as well as a commercial crossbred pig breed, and to analyse the relationships between meat colour and antioxidant capacity. The results showed that the Chinese native and bred pig breeds have higher meat colour and marbling scores than commercial crossbred pigs. The Chinese native and bred pig breeds showed significantly stronger total antioxidant capacity and superoxide dismutase activity, and lower malondialdehyde contents than commercial crossbred pigs. Moreover, the total antioxidant capacity, superoxide dismutase activity were positively correlated with visual colour, a* and chroma, and negatively correlated with L* and hue angle; on the contrary, the malondialdehyde content was negatively correlated with visual colour, marbling, a*, b* and chroma, and positively correlated with L* and hue angle. In addition, principal component 1 and 2 explained 46.41% and 18.30% of the total variance. These results indicated that meat colour and antioxidant capacity were affected by pig breeds, and meat colour was strongly correlated with antioxidant capacity.

scholarly journals Red Cabbage (Brassica oleracea) Ameliorates Diabetic Nephropathy in Rats

2008 ◽  
Vol 5 (3) ◽  
pp. 281-287 ◽  
Author(s):  
Hazem A. H. Kataya ◽  
AlaaEldin A. Hamza
Keyword(s):  
Adverse Effect ◽  
Superoxide Dismutase ◽  
Body Weight ◽  
Antioxidant Capacity ◽  
Brassica Oleracea ◽  
Catalase Activity ◽  
Total Antioxidant Capacity ◽  
Superoxide Dismutase Activity ◽  
Red Cabbage ◽  
Total Antioxidant

The protective action against oxidative stress of red cabbage (Brassica oleracea) extract was investigated. Diabetes was induced in male Wistar rats using streptozotocin (60 mg/kg body weight). Throughout the experimental period (60 days), diabetic rats exhibited many symptoms including loss of body weight, hyperglycemia, polyuria, polydipsia, renal enlargement and renal dysfunction. Significant increase in malondialdehyde, a lipid peroxidation marker, was observed in diabetic kidney. This was accompanied by a significant increase in reduced glutathione and superoxide dismutase activity and a decrease in catalase activity and in the total antioxidant capacity of the kidneys. Daily oral ingestion (1 g/kg body weight) ofB. oleraceaextract for 60 days reversed the adverse effect of diabetes in rats.B. oleraceaextract lowered blood glucose levels and restored renal function and body weight loss. In addition,B. oleraceaextract attenuated the adverse effect of diabetes on malondialdehyde, glutathione and superoxide dismutase activity as well as catalase activity and total antioxidant capacity of diabetic kidneys. In conclusion, the antioxidant and antihyperglycemic properties ofB. oleraceaextract may offer a potential therapeutic source for the treatment of diabetes.

The Effects of Individual Vitamin and Mineral Complex on Some Parameters of Physical Capacity and Blood Oxidative Metabolism in Athletes

2015 ◽  
Vol 22 (4) ◽  
pp. 127-131
Author(s):  
Мартусевич ◽  
A. Martusevich ◽  
Карузин ◽  
K. Karuzin
Keyword(s):  
Superoxide Dismutase ◽  
Antioxidant Capacity ◽  
Oxidative Metabolism ◽  
Total Antioxidant Capacity ◽  
Physical Capacity ◽  
Mineral Complex ◽  
Total Antioxidant ◽  
Oxidative Processes ◽  
The Individual ◽  
Positive Effect

The purpose of this work was the estimation of the effects of the individual technology of metabolic correction on the parameters of the physical capacity and blood oxidative processes in athletes. The authors studied physical capacity indexes and blood oxidative metabolism (by total antioxidant capacity and activity of superoxide dismutase) in 24 athletes of main group (with vitamin and mineral complex) and 30 sportsmen, which got a placebo. It was stated the positive effect of investigated complex on the physical capacity, is realized through the directed optimization of the blood oxidative metabolism, first of all – antioxidant enzymes.

scholarly journals Decreased Superoxide Dismutase Concentrations (SOD) in Plasma and CSF and Increased Circulating Total Antioxidant Capacity (TAC) Are Associated with Unfavorable Neurological Outcome after Aneurysmal Subarachnoid Hemorrhage

2021 ◽  
Vol 10 (6) ◽  
pp. 1188
Author(s):  
Harald Krenzlin ◽  
Dominik Wesp ◽  
Jan Schmitt ◽  
Christina Frenz ◽  
Elena Kurz ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Superoxide Dismutase ◽  
Subarachnoid Hemorrhage ◽  
Brain Injury ◽  
Antioxidant Capacity ◽  
Neurological Outcome ◽  
Total Antioxidant Capacity ◽  
Early Brain Injury ◽  
Fisher Grade ◽  
Total Antioxidant

Background: Subarachnoid hemorrhage (SAH) is a devastating disease with high morbidity and mortality. Hypoxia-induced changes and hemoglobin accumulation within the subarachnoid space are thought to lead to oxidative stress, early brain injury, and delayed vasospasm. This study aimed to evaluate the antioxidant status and its impact on neurological outcome in patients with aneurysmal SAH. Methods: In this prospective observational study, 29 patients with aneurysmal SAH were included (mean age 54.7 ± 12.4). Blood and cerebrospinal fluid (CSF) samples were collected on days (d) 1, 3, and 7. In addition, 29 patients without intracranial hemorrhage served as controls. The antioxidant system was analyzed by glutathione peroxidase (GSH-Px; U/L) and total and free glutathione-sulfhydryl (GSH; mg/L) in the plasma. Superoxide dismutase (SOD, U/mL) and total antioxidant capacity (TAC, µmol/L) were measured in the serum and CSF. Clinical data were compiled on admission (Hunt and Hess grade, Fisher grade, and GCS). Neurological and cognitive outcome (modified Rankin scale (mRS), Glasgow Outcome Scale Extended (GOSE) and Montreal Cognitive Assessment (MoCA)) was assessed after 6 weeks (6 w) and 6 months (6 m). Results: Plasma levels of SOD increased from day 1 to 7 after SAH (d1: 1.22 ± 0.36 U/L; d3: 1.25 ± 0.33 U/L, p = 0.99; d7: 1.52 ± 0.4 U/L, p = 0.019) and were significantly higher compared to controls (1.11 ± 0.27 U/L) at day 7 (p < 0.001). Concordantly, CSF levels of SOD increased from day 1 to 7 after SAH (d1: 1.22 ± 0.41 U/L; d3: 1.77 ± 0.73 U/L, p = 0.10; d7: 2.37 ± 1.29 U/L, p < 0.0001) without becoming significantly different compared to controls (1.74 ± 0.8 U/L, p = 0.09). Mean plasma TAC at day 1 (d1: 77.87 ± 49.72 µmol/L) was not statistically different compared to controls (46.74 ± 32.42 µmol/L, p = 0.25). TAC remained unchanged from day 1 to 7 (d3: 92.64 ± 68.58 µmol/L, p = 0.86; d7: 74.07 ± 54.95 µmol/L, p = 0.8) in plasma. TAC in CSF steeply declined from day 1 to 7 in patients with SAH becoming significantly different from controls at days 3 and 7 (d3: 177.3 ± 108.7 µmol/L, p = 0.0046; d7: 85.35 ± 103.9 µmol/L, p < 0.0001). Decreased SOD levels in plasma and CSF are associated with a worse neurological outcome 6 weeks (mRS: CSF p = 0.0001; plasma p = 0.027/GOSE: CSF p = 0.001; plasma p = 0.001) and 6 months (mRS: CSF p = 0.001; plasma p = 0.09/GOSE: CSF p = 0.001; plasma p = 0.001) after SAH. Increased plasma TAC correlated with a worse neurological outcome 6 weeks (mRS: p = 0.001/GOSE p = 0.001) and 6 months (mRS p = 0.001/GOSE p = 0.001) after SAH. Conclusion: In our study, a reduction in the antioxidative enzyme SOD and elevated TAC were associated with a poorer neurological outcome reflected by mRS and GOSE at 6 weeks and 6 months after SAH. A lower initial SOD CSF concentration was associated with the late deterioration of cognitive ability. These findings support the mounting evidence of the role of oxidative stress in early brain injury formation and unfavorable outcome after SAH.

scholarly journals Antioxidative responses to seasonal changes and chemiluminescence assay of Astragalus onobrychis leaves extract

2013 ◽  
Vol 11 (2) ◽  
pp. 123-132
Author(s):  
Dragoljub Miladinović ◽  
Budimir Ilić ◽  
Stevo Najman ◽  
Olga Cvetković ◽  
Aleksandra Šajnović ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Enzyme Activity ◽  
Glutathione Peroxidase ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Seasonal Changes ◽  
Antioxidant Enzyme Activity ◽  
Guaiacol Peroxidase ◽  
Stages Of Growth ◽  
Total Antioxidant

AbstractThe aim of this study was to research the seasonal changes of antioxidant enzyme activity and total antioxidant capacity in leaves of Astragalus onobrychis L. subsp. chlorocarpus (Griseb.) S. Kozuharov et D.K. Pavlova. Leaves of A. onobrychis were collected during the different stages of growth and analyzed for antioxidant enzyme activity: superoxide dismutase, catalase, guaiacol peroxidase, glutathione peroxidase. Quantities of malonyldialdehyde, superoxide radicals, and hydroxyl radicals were measured as well as the content of soluble proteins. Furthermore, total antioxidant capacity was determined by the inhibition of chemiluminescence activity of blood phagocytes by leaf extracts. Stages of vegetation significantly affected the accumulation of superoxide radicals, but there were no significant differences in hydroxyl radical quantity and lipid peroxidation levels during vegetation. Soluble proteins vary greatly between different stages of growth. Seasonal changes were found to have an effect on enzymatic activities. During the spring season, guaiacol peroxidase showed the highest levels. Catalase and glutathione peroxidase increased their activities in summer, while, during the autumn season, superoxide dismutase showed maximum activity. On the basis of chemiluminescence assay, it can be concluded that leaf extract of A. onobrychis possesses a significant antioxidant capacity thus protecting plants during environmental stress.

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