scholarly journals The Effect of Staphylococcus spp., Streptococcus spp. and Enterobacteriaceae on the Development of Whey Protein Levels and Oxidative Stress Markers in Cows with Diagnosed Mastitis

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1591
Author(s):  
Kamila Puppel ◽  
Aleksandra Kalińska ◽  
Magdalena Kot ◽  
Jan Slósarz ◽  
Małgorzata Kunowska-Slósarz ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Whey Proteins ◽  
Oxidative Stress Markers ◽  
Bacterial Strains ◽  
High Concentration ◽  
Protein Levels ◽  
Stress Markers ◽  
Staphylococcus Spp ◽  
Β Lactoglobulin ◽  
And Oxidative Stress

Mastitis is one of the most common diseases of high-yielding dairy cows, and over 90% of cases are caused by Streptococcus spp., Enterobacteriaceae, or Staphylococcus spp. Certain groups of proteins are very significant in terms of the cow’s antioxidant, bacteriostatic, and germicidal properties: lysozyme (Lz), lactoferrin (Lf), and β-lactoglobulin (BLG). This study aimed to determine the influence of Staphylococcus spp., Streptococcus spp., and Enterobacteriaceae on the secretion of bioactive whey proteins and oxidative stress markers. From the herd, 60 multiparous cows with diagnosed mastitis were selected. Samples were taken individually from each quarter and pooled, which gave 60 samples. Enterobacteriaceae did not affect the BLG synthesis, whereas lysozyme and lactoferrin responded to a high concentration of these bacterial strains. In the case of Staphylococcus spp. infection, the BLG level increased. These strains did not affect the levels of di-malonic aldehyde (MDA), lactoferrin, and lysozyme. In contrast, they were significantly influenced by Streptococcus spp. In summary, the levels of whey proteins and oxidative stress markers changed depending on the bacterial strain inducing inflammation. Lysozyme and lactoferrin may be markers of udder inflammation caused by Enterobacteriaceae and Streptococcus spp., whereas β-lactoglobulin may prove useful in diagnosing Staphylococcus spp. induced mastitis.

scholarly journals Intermittent High Glucose Enhances Apoptosis in INS-1 Cells

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Xiao-li Shi ◽  
Yue-zhong Ren ◽  
Jing Wu
Keyword(s):  
Oxidative Stress ◽  
Beta Cells ◽  
High Glucose ◽  
Cell Apoptosis ◽  
Oxidative Stress Markers ◽  
Intracellular Level ◽  
High Concentration ◽  
Stress Markers ◽  
Intermittent High Glucose ◽  
And Oxidative Stress

To investigate the effect of intermittent high glucose (IHG) and sustained high glucose (SHG) on inducingβ-cell apoptosis and the potential involved mechanisms, INS-1 beta cells were incubated for 72 h in the medium containing different glucose concentrations: control (5.5 mmol/L), SHG (33.3 mmol/L), and IHG (5.5 mmol/L and 33.3 mmol/L glucose alternating every 12 h). Cell viability, apoptosis rate, and oxidative-stress markers were determined. The results showed that the apoptosis induced by IHG was more obvious than that by SHG. Simultaneously, the intracellular level of oxidative stress was more significantly increased in INS-1 cells exposed to IHG. These findings suggest that intermittent high glucose could be more deleterious toβ-cell than a constant high concentration of glucose, this may be due to the aggravation of oxidative stress triggered by intermittent high glucose.

Comparison of Salivary Antioxidants and Oxidative Stress Status in Gestational Diabetes Mellitus and Healthy Pregnant Women

2020 ◽  
Vol 20 ◽  
Author(s):  
Fatemeh Ahmadi-Motamayel ◽  
Shima Fathi ◽  
Mohammad Taghi Goodarzi ◽  
Shiva Borzouei ◽  
Jalal Poorolajal ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Pregnant Women ◽  
Oxidative Stress Markers ◽  
Blood Samples ◽  
Stress Markers ◽  
Total Antioxidant ◽  
Total Oxidative Stress ◽  
And Oxidative Stress

Background: One of the most common complications of pregnant women is gestational diabetes mellitus (GDM). Oxidative stress can play an important role in GDM. Objective: The aim of this study was to evaluate salivary antioxidants and oxidative stress markers in GDM. Method: Twenty pregnant women with GDM and 20 healthy pregnant women with normal blood glucose test participated in this study. Five mL of unstimulated saliva samples were collected. Spectrophotometric assay was carried out for sialochemical analysis. Stata software was used for data analysis. Results: The GDM group exhibited no significant difference in salivary total antioxidant capacity and malondialdehyde compared to the healthy control group. All of antioxidants markers, the uric acid, total antioxidant, peroxidase and catalase, decreased in GDM group that the difference of peroxidase and catalase was statistically significant. All of oxidative stress markers, the salivary malondyaldehid, total oxidative stress and total thiol, increased in GDM group. GDM group exhibited significantly higher salivary total oxidative stress levels. Conclusion: Catalase level was significantly lower and total oxidative stress was significantly higher. These two markers might have significant importance and might exhibit early changes compared to other factors in GDM. . Some of salivary antioxidants might have diagnostic, prognostic or therapeutic implications in GDM. Other studies with large sample size on salivary and blood samples need to be done to confirm this properties and salivary samples using instead of blood samples in GDM biomarkers changes.

Evaluation of Salivary Antioxidants and Oxidative Stress Markers in Type 2 Diabetes Mellitus: A Retrospective Cohort Study

2020 ◽  
Vol 20 (4) ◽  
pp. 584-590 ◽  
Author(s):  
Shima Fathi ◽  
Shiva Borzouei ◽  
Mohammad Taghi Goodarzi ◽  
Jalal Poorolajal ◽  
Fatemeh Ahmadi-Motamayel
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Control Group ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Type 2 Dm ◽  
Patients With Diabetes ◽  
The Difference ◽  
And Oxidative Stress

Background: Diabetes Mellitus (DM) is a progressive metabolic disorder. Objective: The aim of this study was to investigate the relationship between antioxidant and oxidative stress markers in the saliva of patients with type 2 DM and a healthy control group. Methods: In this study, 20 patients with diabetes and 20 healthy individuals were evaluated. Salivary antioxidants markers consisted of total antioxidant capacity (TAC), uric acid (UA), peroxidase and catalase. Oxidative stress markers included total oxidant status (TOS), malondealdehyde (MDA) and total thiol (SH). Sialochemical analysis was performed with spectrophotometric assay. All the statistical analyses were conducted using STATA software. Results: TAC decreased significantly in patients with diabetes. Although salivary UA and peroxidase were lower in patients with diabetes compared to the control group, the difference was not significant. Salivary catalase in patients with diabetes was significantly lower than that in the control group. MDA and TOS exhibited significantly higher levels in type 2 DM. SH levels were slightly higher in DM. Conclusions: According to the results of the present study, there were some changes in the salivary levels of some antioxidants and oxidative stress markers in patients with type 2 DM and could be measured as an indicator of serum changes..

Minocycline effects on cerebral edema: Relations with inflammatory and oxidative stress markers following traumatic brain injury in mice

2009 ◽  
Vol 1291 ◽  
pp. 122-132 ◽  
Author(s):  
Shadi Homsi ◽  
Fabiola Federico ◽  
Nicole Croci ◽  
Bruno Palmier ◽  
Michel Plotkine ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Cerebral Edema ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
And Oxidative Stress

Possible Effects of Lycopene and Silymarin on Rat Liver Functions and Oxidative Stress Markers

2014 ◽  
Vol 39 (3) ◽  
pp. 344-350 ◽  
Author(s):  
Aysun Kilic Suloglu, PhD ◽  
Assoc. Prof. Gozde Girgin, PhD ◽  
Prof. Guldeniz Selmanoglu, PhD ◽  
Serdar Balci, MD ◽  
Prof. Terken Baydar, PhD
Keyword(s):  
Oxidative Stress ◽  
Rat Liver ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Liver Functions ◽  
And Oxidative Stress
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