scholarly journals Assessment of oxidative stress indicators of West African Dwarf sheep under semi intensive management system

2021 ◽  
Vol 43 (2) ◽  
pp. 78-83
Author(s):  
A. A Jack ◽  
O. A. Jimoh ◽  
U. G. Ihejirika ◽  
U. C. Uwaeziozi ◽  
O. O. Adenekan

Oxidative stress results from increased production of free radicals and reactive oxygen species, and a decrease in antioxidant defense. This study was conducted to assess sexual dimorphism in serum biochemistry and oxidative status of West African dwarf lambs. Sixteen each of rams and ewes 8months old were randomly selected from a herd purchase from livestock market, Oyo. The average body weights of the lambs were 12.08±3.26 and 12.76kg ewes and rams, respectively. Fastened blood samples were collected from the sheep and assayed for serum biochemical, lipid peroxidation, total antioxidant activity, catalase and superoxide dismutase using standard procedures, data obtained were subjected to T-test. The result indicated that both sex had similar serum biochemical indices except total protein. Ewes had significantly higher serum protein than ram. Rams had apparently higher total antioxidant activity and significantly higher serum catalase activity than ewes, while serum lipid peroxidation and superoxide dismutase were statistically similar in both sexes. This indicates that rams have better antioxidant activity than ewes. During oxidative stress prone conditions and environment, measures to boost antioxidant activity of ewes should be emphasized.

2021 ◽  
Vol 43 (1) ◽  
pp. 78-83
Author(s):  
A. A. Jack ◽  
O. A. Jimoh ◽  
U. G. Ihejirika ◽  
U. C, Uwaeziozi ◽  
O. O. Adenekan

Oxidative stress results from increased production of free radicals and reactive oxygen species, and a decrease in antioxidant defense. This study was conducted to assess sexual dimorphism in serum biochemistry and oxidative status of West African dwarf lambs. Sixteen each of rams and ewes 8months old were randomly selected from a herd purchase from livestock market, Oyo. The average body weights of the lambs were 12.08±3.26 and 12.76kg ewes and rams, respectively. Fastened blood samples were collected from the sheep and assayed for serum biochemical, lipid peroxidation, total antioxidant activity, catalase and superoxide dismutase using standard procedures, data obtained were subjected to T-test. The result indicated that both sex had similar serum biochemical indices except total protein. Ewes had significantly higher serum protein than ram. Rams had apparently higher total antioxidant activity and significantly higher serum catalase activity than ewes, while serum lipid peroxidation and superoxide dismutase were statistically similar in both sexes. This indicates that rams have better antioxidant activity than ewes. During oxidative stress prone conditions and environment, measures to boost antioxidant activity of ewes should be emphasized.


2020 ◽  
Vol 44 (4) ◽  
pp. 110-117
Author(s):  
U. G. D. Ihejirika ◽  
O. O. Adenekan ◽  
O. A. Jimoh ◽  
A. A. Jack ◽  
U. C. Uwaeziozi

 This study aims to evaluate variations in serum biochemistry and oxidative status between male and female WestAfrican dwarfgoats under semi intensive management system. Twenty, each of bucks and does (12 months old) were randomly selected from a herd purchased from Oyo livestock market, in Oyo State. The average body weights of the goats were12.08 ± 3.26 and 12.15 ± 1.51kg does and bucks, respectively. Blood samples were collected from fastened goats and assayed for serum biochemicals, lipid peroxidation,  total antioxidant activity, catalase and superoxide dismutase using standard procedures. Data obtained were subjected to T-test. The result showed serum glucose, albumin,  cholesterol, total protein, globulin, triglyceride, creatinine, alanine amino transferase(ALT),aspartate amino transferase(AST) and urea were not significantly (P>0.05) different among the sexes. Serum high density lipoprotein was significantly (P<0.05) higher in does (13.96 mmol/l) than in bucks (5.91mmol/l) and alkaline phosphatase was significantly (P<0.05) higher in bucks (2580.55 IU/L) than in does (1594.58 IU/L). Serum lipid peroxidation, total antioxidant activity and superoxide dismutase were statistically similar (P>0.05) in both sexes. Serum catalase was significantly (P<0.05) higher in bucks than in does. From this study, it can be deduced that serum biochemical indices in does and bucks are similar except for alkaline phosphatase and high density lipoprotein. Bucks recorded higher catalase than does.It could be concluded that during physiological and environmental stress conditions, antioxidant supplementation should be adopted to boost the antioxidant capacity of the does.


2019 ◽  
Vol 43 (1) ◽  
Author(s):  
Abubakar Olatunji Jimoh ◽  
Olayinka Abosede Ojo ◽  
Uchechi Daureen Gift Ihejirika

Abstract Background A study was conducted to investigate changes in oxidative stress indicators of West African dwarf (WAD) goats at different reproductive stages. There are a total of 35 dry does, 30 gravid does at first trimester (40–45 days post-mating), 33 gravid does at second trimester (85–90 days post-mating), 31 gravid does at third trimester (135–140 days post-mating), and 40 postpartum does (30–35 days postpartum). Fastened blood samples were collected from all tagged animals and serum obtained. Serum was assayed for lipid peroxidation, total antioxidant activity, glutathione peroxidase, catalase and superoxide dismutase, serum biochemical, glucose, total protein, albumin, cholesterol, triglyceride, high-density lipoprotein, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, urea, and creatinine using standard procedures. Results Result revealed that intense metabolic changes were associated with late prepartum and postpartum does as pronounced in oxidative and biochemical indicators of WAD does. Significant differences were found in serum biochemical indices across the different physiological stages of the doe except for triglyceride and low-density lipoprotein. Antioxidant defense is higher at early and mid-gestation and dry does, through low lipid peroxidation and high antioxidant activity as compared to late gestation and lactation does. Conclusion The observed result shows that the WAD does display oxidative stress during late gestation and lactation owing to intense metabolism. Antioxidant fortification should be employed especially during late gestation and lactation to counteract the oxidative stress in WAD goats.


2015 ◽  
Vol 61 (2) ◽  
pp. 8-11
Author(s):  
M V Faassen ◽  
M S Pankratova ◽  
N N Molitvoslovova ◽  
A A Baizhumanov ◽  
S S Kovalenko ◽  
...  

The state of the blood antioxidant system in the patients presenting with acromegaly. The objective of the present study was to evaluate the total antioxidant activity (TAA) of blood plasma, the levels of non-protein thiols and 2-thyobarbituric acid-active products (TBA-AP), superoxide dismutase (SOD) and catalase (CAT) activities as well as ceruloplasmin (CP) level in the patients presenting with acromegaly. It was shown that plasma TAA and SOD activity in this patients was on the average 20 and 30% lower respectively than in the control subjects. At the same time, the TBA-AP and CP levels increased by 50 and 40% respectively. These data suggest the development of oxidative stress in the acromegalic patients.


2019 ◽  
Vol 4 (1) ◽  
pp. 14-18
Author(s):  
Nadezhda A. Kurashova ◽  
Ekaterina A. Kudeyarova ◽  
Ekaterina O. Kuznetsova

Background.Today infertile marriage is not only a serious medical, but also a socio-demographic and economic problem. Male factor contributes averagely to half of the cases of the disease in couples. Such factors as high levels of reactive oxygen species and oxidative stress have been reported to compromise the process of spermatogenesis and sperm function in men. Oxidative stress is a significant risk factor for male infertility. A pro-oxidant testicular environment may alter the expression profile of functional sperm proteins and result in poor sperm quality.Aims.To study the characteristics of the intensity of the processes of lipoperoxidation and antioxidant status in the ejaculate of men with different variants of spermograms.Materials and methods.We examined 69 men with primary infertility and 155 fertile men. The content of lipid peroxidation components and antioxidant protection was determined by spectrophotometric method.Results.The results of the study in men with infertility and asthenozoospermia showed decreased total antioxidant activity of sperm by 50 % and α-tocopherol by 52 %, and in men with infertility and oligozoospermia, decreased total antioxidant activity of sperm by 47 % and α-tocopherol by 41 %.Conclusions.The analysis indicates a change in the parameters of the system of lipid peroxidation – antioxidant defense system and confirms the development of oxidative stress in them. Depending on the pathological state of the ejaculate in men of reproductive age, lipid peroxidation processes have their own characteristics. In men with oligozoospermia, peroxidation processes occur more intensively. Activation of lipid peroxidation – antioxidant defense system processes can be both a consequence and a cause of various metabolic changes in the human body.


2018 ◽  
Vol 3 (2) ◽  
pp. 11-15
Author(s):  
Ramprasad Kowsalya ◽  
Ashok Prabhu

Background: Rheumatoid Arthritis is a chronic disease and a leading cause of disability in people with advancing age. Disease modifying antirheumatic drugs have become the mainstay of management in rheumatoid arthritis. Among these drugs, methotrexate the most frequently used agent has a proven anti-inflammatory action and is known to slow down the progression of the disease. Hence the present study is undertaken to evaluate the effect of methotrexate on the oxidant and antioxidant status in patients with rheumatoid arthritis on methotrexate.Methods: A total of 40 rheumatoid arthritis patients and 40 controls were enrolled for the study. The rheumatoid arthritis patients were further divided into patients on methotrexate (group I) and patients without methotrexate (group II). The lipid peroxidation index -Malondialdehyde and total antioxidant activity, superoxide dismutase and glutathione levels were analyzed in all the participants.Results: A significant increase in total antioxidant activity (p = 0.048) and decrease in lipid peroxidation (p = 0.04) was found in methotrexate treated arthritis patients compared to patients without methotrexate. A significant negative correlation (p=0.01) was found between MDA and total antioxidant activity in both groups of patients whereas, the antioxidant enzyme superoxide dismutase was positively correlated with lipid peroxide levels. Conclusion: In conclusion low dose methotrexate seems to act as an effective anti-inflammatory drug and may also play an important role in minimizing the oxidative stress in rheumatoid arthritis. Serum total antioxidant activity is significantly raised in subjects with altered liver function profile.


2006 ◽  
Vol 131 (1) ◽  
pp. 104-109 ◽  
Author(s):  
Rosa Vilaplana ◽  
M. Carme Valentines ◽  
Peter Toivonen ◽  
Christian Larrigaudière

In order to determine the effects that 1-methylcyclopropene (1-MCP) may have on antioxidant metabolism during cold storage, apples (Malus ×domestica Borkh. cv. Golden Smoothee) were treated with 625 nL·L−1 1-MCP immediately after harvest and stored in air for 3 months. Differences in total antioxidant activity and ascorbate levels were determined during storage and related to the activity of the antioxidant enzymes superoxide dismutase [SOD (EC 1.15.1.1)], catalase [CAT (EC 1.11.1.6)], and peroxidase [POX (EC 1.11.1.7)] in pulp. The level of oxidative stress in the pulp tissue was also established by determining changes in levels of hydrogen peroxide and in the content of peroxidative markers during storage. Controls and 1-MCP-treated fruit exhibited similar changes in total antioxidant activity and ascorbate levels. However, significant differences in oxidative stress levels were found between treated and untreated fruit. 1-MCP-treated fruit exhibited lower levels of hydrogen peroxide and significantly lower levels in peroxidative markers, especially at the end of the storage period. In line with this last result, 1-MCP-treated fruit also exhibited greater enzymatic antioxidant potential and, more specifically, a higher level of POX activity. Collectively, these results showed that 1-MCP did not detrimentally affect the antioxidant potential of the fruit and provided evidence to support the hypothesis that the beneficial effects of 1-MCP on ripening are not exclusively limited to its effect on ethylene, but also include direct effects on peroxidation and POX enzyme activity.


Author(s):  
Udedi Stanley Chidi ◽  
Ani Onuabuchi Nnenna ◽  
Asogwa Kingsley Kelechi ◽  
Maduji Fitzcharles Chijindu ◽  
Okafor Clinton Nebolisa

This study investigated the in-vitro antioxidant activity of ethanol leaf extract of Justicia carnea and its effect on antioxidant status of alloxan-induced diabetic albino rats. The in-vitro antioxidant activity was assayed by determining the total phenol, flavonoids, ascorbic acid, β-carotene and lycopene contents and by using 2,2 diphenyl-1-picrylhydrazyl (DPPH) radical, reducing antioxidant power and inhibition of lipid peroxidation antioxidant systems. Oxidative stress was produced in rats by single intraperitoneal injection of 150 mg/kg alloxan and serum concentration of malonaldehyde (MDA), superoxide dismutase (SOD) and catalase (CAT) were determined. Five experimental groups of rats (n=6) were used for the study. Two groups of diabetic rats received oral daily doses of 100 and 200 mg/kg Justicia carnea leaf extract respectively while gilbenclamide (5 mg/ml); a standard diabetic drug was also given to a specific group for 14 days. From the result, the leaf extract contained a higher concentration of flavonoids followed byphenols, ascorbic acid, lycopene and β-carotene. The extract displayed more potent reducing power ability with EC50 of 40 µg/ml compared to BHA (EC50 of 400µg/ml). The percentage DPPH radical scavenging activity of the extract was also higher with EC50 of 200µg/ml and increased with increase in concentration while BHA had EC50of 320µg/ml. The inhibition of lipid peroxidation also increased with increase in concentration with EC50 of 58µg/ml and comparable with BHA (EC50=60µg/ml). The effect of the plant extract on antioxidant enzyme activities was concentration-dependent. Administration of 100mg/kg of the plant extract resulted in a significant decrease (p<0.05) in serum MDA concentration, while 200 mg/kg of the extract caused a significant (p˂0.05) increase in superoxide dismutase (SOD) and catalase activities with a non-significant increase (p>0.05) in the serum level of MDA when compared with the diabetic untreated group. These findings suggest that ethanol leaf extract of Justicia carnea have antioxidant properties and could handle diabetes-induced oxidative stress.


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