scholarly journals The Antioxidant Effects of Whey Protein Peptide on Learning and Memory Improvement in Aging Mice Models

Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 2100
Author(s):  
Xiao-Chen Yu ◽  
Zhen Li ◽  
Xin-Ran Liu ◽  
Jia-Ni Hu ◽  
Rui Liu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Learning And Memory ◽  
Whey Protein ◽  
Control Group ◽  
Stress Injury ◽  
Model Control ◽  
Model Control Group ◽  
Protein Group ◽  
Antioxidant Effects

This study investigated the antioxidant effects of whey protein peptide on learning and memory in aging C57BL/6N mice. A total of 72 SPF male C57BL/6N mice were used. Twelve mice were randomly selected as the control group, and the other mice were intraperitoneally injected with D-galactose (100 mg/kg body weight for 6 weeks), during which, the mice in the control group were intraperitoneally injected with the same amount of normal saline. After 6 weeks, the blood was taken from the epicanthus and the serum MDA level was measured, according to which, the mice were randomly divided into the model control group, the whey protein group (1.5 g/kg body weight), and three Whey protein peptide (WHP) intervention groups (0.3 g/kg body weight, 1.5 g/kg body weight, 3.0 g/kg body weight). The water solution of the test sample was administered by oral gavage every day. The intervention period was 30 days, during which, the model control group, the whey protein group, and the whey protein peptide group continued receiving intraperitoneal injections of D-galactose, while the control group continued receiving intraperitoneal injections of normal saline. After the intervention, behavioral experiments were conducted in the following order: open field test, water maze test, and new object recognition test. After the behavioral experiment, the morphology of hippocampal formation was observed by HE staining and TUNEL labeling. Oxidative stress-related indexes in the serum, liver, and brain were detected. Expression levels of the cholinergic system-related enzymes and proinflammatory cytokines in brain tissue were detected. Western blot was used to detect the expression of synaptic plasticity-related proteins in the mouse brain. The results showed that WHP could significantly improve the accumulation of MDA and PC, increase the activities of SOD and GSH-Px, resist oxidative stress injury, and enhance the potential of endogenous antioxidant defense mechanisms. WHP can significantly improve the decline of aging-related spatial exploration, body movement, and spatial and non-spatial learning/memory ability. Its specific mechanism may be related to reducing the degeneration of hippocampal nerve cells, reducing the apoptosis of nerve cells, improving the activity of AChE, reducing the expression of inflammatory factors (TNF-α and IL-1β) in brain tissue, reducing oxidative stress injury, and improving the expression of p-CaMKⅡ and BDNF synaptic plasticity protein. These results indicate that WHP can improve aging-related oxidative stress, as well as learning and memory impairment.

scholarly journals Protective effects and mechanisms of microRNA-182 on oxidative stress in RHiN

2019 ◽  
Vol 14 (1) ◽  
pp. 400-409
Author(s):  
Lihua Li ◽  
Wenna Peng ◽  
Xiangrong Tian
Keyword(s):  
Oxidative Stress ◽  
Superoxide Dismutase ◽  
Survival Rate ◽  
Control Group ◽  
Mrna Levels ◽  
Protective Effects ◽  
Apoptosis Rate ◽  
Model Control ◽  
Model Control Group ◽  
Phosphoinositide 3 Kinase

AbstractTo explore protective effects and related mechanisms of microRNA-182 (miR-182) on oxidative stress in rat hippocampal neurons (RHiN), RHiN cells. As the results, the survival rate and superoxide dismutase levels in H2O2 group were significantly lower than H2O2+miR-182 group (all P<0.05). The malondialdehyde levels and apoptosis rate in H2O2+miR-182 group were significantly lower than H2O2 group (all P<0.05). The mRNA levels and expression levels of mTOR and PI3K in H2O2+miR-182 group were higher than those in H2O2 group (both P<0.05). The experiment of cerebral ischemic oxidative stress model rats showed that the survival rate, apoptosis rate, malondialdehyde and superoxide dismutase levels in miR-182 group were better than model control group. The positive staining intensity of phosphoinositide 3-kinase (mTOR) and phosphoinositide 3-kinase (PI3K) in model control group were significantly lower than miR-182 group (all P<0.05). Increased levels of miR-182 can reduce the damage of H2O2 treatments in RHiN cells. Oxidative stress is decreased in the neuronal cells possibly by activation of the PI3K-AKT-mTOR pathway.

scholarly journals Whey Protein Concentrate WPC-80 Intensifies Glycoconjugate Catabolism and Induces Oxidative Stress in the Liver of Rats

Nutrients ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1178 ◽  
Author(s):  
Marta Żebrowska-Gamdzyk ◽  
Mateusz Maciejczyk ◽  
Anna Zalewska ◽  
Katarzyna Guzińska-Ustymowicz ◽  
Anna Tokajuk ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Whey Protein ◽  
Transforming Growth Factor ◽  
Transforming Growth Factor Β1 ◽  
Whey Protein Concentrate ◽  
Control Group ◽  
Protein Concentrate ◽  
Male Wistar Rats ◽  
Tgf Β1

The aim of this study was to evaluate the effect of whey protein concentrate (WPC-80) on glycoconjugate catabolism, selected markers of oxidative stress and liver inflammation. The experiment was conducted on male Wistar rats (n = 63). The animals from the study group were administered WPC-80 at a dose of 0.3 or 0.5 g/kg body weight for 7, 14 or 21 days, while rats from the control group received only 0.9% NaCl. In liver homogenates, we assayed the activity of N-acetyl-β-D-hexosaminidase (HEX), β-glucuronidase (GLU), β-galactosidase (GAL), α-mannosidase (MAN), α-fucosidase (FUC), as well as the level of reduced glutathione (GSH), malondialdehyde (MDA), interleukin-1β (IL-1β) and transforming growth factor-β1 (TGF-β1). A significantly higher activity of HEX, GLU, MAN and FUC were found in the livers of rats receiving WPC-80 compared to controls. Serum ALT and AST were significantly higher in the animals supplemented with WPC-80 at a dose of 0.5 g/kg body weight for 21 days. In the same group of animals, enhanced level of GSH, MDA, IL-1β and TGF-β1 were also observed. WPC-80 is responsible for intensive remodelling of liver tissue and induction of oxidative stress especially at a dose of 0.5 g/kg body weight.

Effect of Opuntia dejecta (Salm-Dyck) flowers in liver of fructose-fed rats: Biochemicals, enzymatic and histological studies

2021 ◽  
pp. 096032712110134
Author(s):  
O Zouaoui ◽  
K Adouni ◽  
A Jelled ◽  
A Thouri ◽  
A Ben Chrifa ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Body Weight ◽  
Diabetes Type 2 ◽  
Male Rats ◽  
Control Group ◽  
Standard Drug ◽  
High Fructose ◽  
Group A ◽  
Histological Architecture

Phytochemical composition and antioxidant activity of flowers decoction at post-flowering stage (F3D) of Opuntia dejecta were determined. The obtained findings demonstrate that F3D has a marked antioxidant activity in all tested assays. Furthermore, the present study was designed to test the protective activity of F3D against induced Diabetes type 2 (DT2) in male rats. Those metabolic syndromes were induced by a high-fructose diet (HFD) (10% fructose solution) for a period of 20 weeks. F3D was administered orally (100 and 300 mg/kg body weight) daily for the last 4 weeks. Metformin (150 mg/kg body weight) was used as a standard drug and administrated orally for the last 4 weeks. The results showed a significant increase in blood glucose, triglycerides and hepatic markers (ALAT, ASAT and ALK-P) in HFD group. A significant increase in hepatic TBARS and a significant decrease in SOD, CAT and GPX were observed in fructose fed rats compared to control group. Administration of F3D showed a protective effect in biochemical and oxidative stress parameters measured in this study. Also, oral administration of F3D restored the histological architecture of rat liver in comparison with rats fed HFD. In conclusion, F3D attenuated hepatic oxidative stress in fructose-fed rats.

scholarly journals Effects of Propolis Extract Supplementation during Pregnancy on Stress Oxidative and Pregnancy Outcome: Levels of Malondialdehyde, 8-Oxo-2′-Deoxogunosine, Maternal Body Weight, and Number of Fetuses

2021 ◽  
Vol 31 (3) ◽  
pp. 156
Author(s):  
Joko Wahyu Wibowo ◽  
Minidian Fasitasari ◽  
Siti Thomas Zulaikhah
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Pregnancy Outcomes ◽  
Feeding Tube ◽  
Control Group ◽  
Maternal Body ◽  
Control Group Design ◽  
Pregnant Rats ◽  
Propolis Extract ◽  
Group I

<p>Oxidative stress is related to pregnancy complications that could increase maternal and infant mortality. This study aimed to determine the effect of propolis extract supplementation during pregnancy on oxidative stress level and pregnancy outcomes utilizing Malonedealdehyde (MDA) and 8-Oxo-2′-Deoxogunosine (8-OHdG) levels, maternal body weight, and the average number of fetuses as the parameters. The study was conducted by using a posttest only control group design on 24 pregnant Wistar rats, which were divided into four groups. Group I was control, Group II-IV were the treatment groups given propolis extract of 1.8mg, 3.6mg, and 7.2mg/200gBW/day, respectively. The standard feed given was AIN93G dose of 20g/day and distilled water ad libitum. Propolis extract was given using a gastric feeding tube every morning for 20 days. At the end of the treatment, body weight was meisured and blood collected for assessed MDA and 8-OHdG levels  by ELISA method  and then we performed abdominal surgery to count number of fetuses. The result are there were decreasing level of MDA and 8-OHDG by administration of propolis significantly (p&lt;0.05) group: I: 2,04±0,091, II: 1,55±0,067, III: 1,05±0,176, IV: 0,73±0,075 (mmol/mL) (p=0.001); 8 OHdG level (ng/mL) group I: 10,02±0,403, II: 8,60±0,078, III: 7,89±0,051, IV: 7,53±0,063 (p=0,001). Average of maternal body weight (g) were increased: group I: 228,33±3,93, II: 237,17±4,36, III: 244,83±4,02, IV: 248,00±5,76 (p=0,001) and Average number of fetuses tend to increased as well, group I : 8,5±0,05, II: 7,8±0,41, III: 9,5±1,05, IV: 9,6±0,52 (p=0,02). The conclusion of this research are supplementation of propolis extract in pregnant rats can reduce oxidative stress and improve pregnancy outcomes.</p>

Butylated hydroxyanisole alleviates ferric nitrilotriacetate induced nephrotoxicity in rats by abrogation of oxidative stress

2013 ◽  
Vol 3 (2) ◽  
pp. 65-70
Author(s):  
Sabah Ansar ◽  
Mohammad Iqbal ◽  
Noura Al Jameil
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Body Weight ◽  
Antioxidant Enzymes ◽  
Control Group ◽  
Butylated Hydroxyanisole ◽  
Chemopreventive Agent ◽  
Microsomal Lipid Peroxidation ◽  
Hydrogen Peroxide Generation

In this study the effect of butylated hydroxyanisole (BHA), a phenolic antioxidantused in food on Ferric‐Nitrilotriacetate (Fe–NTA) induced nephrotoxicity is reported. Fe‐NTA (9 mg Fe/kg body weight, intraperitoneally) treatment enhanced the renal microsomal lipid peroxidation and hydrogen peroxide generation to ~2‐2.5 folds compared to saline‐treated control and glutathione levels and the activities of antioxidant enzymes decreased to a range of 2–2.5 fold in kidney. These changes were reversed significantly in animals receiving a pretreatment of BHA. Pretreatment with BHA prior to Fe‐ NTA treatment reduced microsomal lipid peroxidation and hydrogen peroxide generation to 1.3‐1.5 fold compared to control group and glutathione and the activities of antioxidant enzymes increased to a range of 1.5‐2 folds in kidney. Fe‐NTA administration enhanced value of blood urea nitrogen and creatinine to 3.7 and 2.5 fold respectively as compared to their corresponding control group. Administration of Fe‐NTA to rats receiving a pretreatment of BHA led to a significant diminution in both of these values. The results indicate that BHA is a potent chemopreventive agent and suppresses Fe‐NTA induced nephrotoxicity in rats.

scholarly journals miR-155-5p Promotes Oxalate- and Calcium-Induced Kidney Oxidative Stress Injury by Suppressing MGP Expression

2020 ◽  
Vol 2020 ◽  
pp. 1-14 ◽  
Author(s):  
Kehua Jiang ◽  
Jianxin Hu ◽  
Guangheng Luo ◽  
Dalong Song ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Calcium Oxalate ◽  
Luciferase Reporter ◽  
Control Group ◽  
Ros Generation ◽  
High Dose ◽  
Positive Staining ◽  
Stress Injury ◽  
Oxidative Stress Injury ◽  
Ldh Release

Oxalate and calcium are the major risk factors for calcium oxalate (CaOx) stone formation. However, the exact mechanism remains unclear. This study was designed to confirm the potential function of miR-155-5p in the formation of CaOx induced by oxalate and calcium oxalate monohydrate (COM). The HK-2 cells were treated by the different concentrations of oxalate and COM for 48 h. We found that oxalate and COM treatment significantly increased ROS generation, LDH release, cellular MDA levels, and H2O2 concentration in HK-2 cells. The results of qRT-PCR and western blot showed that expression of NOX2 was upregulated, while that of SOD-2 was downregulated following the treatment with oxalate and COM in HK-2 cells. Moreover, the results of miRNA microarray analysis showed that miR-155-5p was significantly upregulated after oxalate and COM treated in HK-2 cells, but miR-155-5p inhibitor treatment significantly decreased ROS generation, LDH release, cellular MDA levels, and H2O2 concentration in HK-2 cells incubated with oxalate and COM. miR-155-5p negatively regulated the expression level of MGP via directly targeting its 3′-UTR, verified by the Dual-Luciferase Reporter System. In vivo, polarized light optical microphotography showed that CaOx crystal significantly increased in the high-dose oxalate and Ca2+ groups compared to the control group. Furthermore, IHC analyses showed strong positive staining intensity for the NOX-2 protein in the high-dose oxalate and Ca2+-treated mouse kidneys, and miR-155-5p overexpression can further enhance its expression. However, the expression of SOD-2 protein was weakly stained. In conclusion, our study indicates that miR-155-5p promotes oxalate- and COM-induced kidney oxidative stress injury by suppressing MGP expression.

Antioxidant potential of thyme extract: alleviation of N-nitrosodiethylamine-induced oxidative stress

2008 ◽  
Vol 27 (3) ◽  
pp. 215-221 ◽  
Author(s):  
P Rana ◽  
G Soni
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Test Group ◽  
Normal Diet ◽  
Lower Degree ◽  
Control Group ◽  
Albino Rats ◽  
Stress Induction ◽  
And Control

Protective role of thyme extract against N-nitrosodiethylamine (NDEA)-induced oxidative stress has been evaluated in albino rats. For this, one group of rats were fed diet supplemented with thyme extract (0.5%) and served as the test group, whereas animals of the other group fed on normal diet served as the control group. The rats were fed on respective diets for a period of 2 weeks after which stress was induced to half the animals of each group by i.p. administration of NDEA at 200 mg/kg body weight. Animals were killed 48 h post stress-induction period. Feed intake and body weight decreased significantly in both test and control groups, the effect being less in test group. Increase in osmotic fragility and in-vitro lipid peroxidation (LPO) on stress induction was of lower degree in the test group. NDEA toxicity was mainly reflected in liver as evidenced by increased activities of plasma aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase. The effect was of lower degree in test group as compared with that in the control group. Increase in urea levels observed following NDEA administration was also of lower degree in test groups. Blood glutathione (GSH) levels increased more so in test group compared with control group on stress induction. The activities of superoxide dismutase (SOD), peroxidase (Px), and catalase (CAT) activities decreased significantly on stress induction in erythrocytes. LPO increased in all the tissues through varying degree, and the increase was appreciably of lower degree in test group. The activity of SOD increased significantly in both test and control group on stress induction, whereas activities of Px and CAT decreased following NDEA treatment, and the effects were of lower degree in test group. Thus, supplementation of diet with thyme extract can improve antioxygenic potential and hence help to prevent oxidative stress.

scholarly journals Comparative Study of the Antioxidant Effects of Metformin, Glibenclamide, and Repaglinide in Alloxan-Induced Diabetic Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Bonaventure Chukwunonso Obi ◽  
Theophine Chinwuba Okoye ◽  
Victor Eshu Okpashi ◽  
Christiana Nonye Igwe ◽  
Edwin Olisah Alumanah
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Diabetic Complications ◽  
Significant Proportion ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Diabetic Control Group ◽  
Antioxidant Effects ◽  
And Oxidative Stress

Diabetes mellitus is one of the serious global health problems affecting a significant proportion of both developed and developing countries. Overproduction of free radicals and oxidative stress has been associated with the development of diabetic complications. In the present study, the antioxidant effects of metformin (MET), glibenclamide (GLI), and repaglinide (REP) were evaluated in alloxan-induced diabetic rats. The findings from this study may possibly help in understanding the efficacy of these standard drugs in managing the complications arising from diabetes mellitus (DM). Alloxan (130 mg/kg BW) was administered as a single dose to induce diabetes. Four (4) groups of rats (n=6) were used; group 1 served as diabetic control while groups 2, 3, and 4 were the diabetic test groups that received MET (25 mg/kg), GLI (2.5 mg/kg), and REP (0.5 mg/kg), respectively. The result of the study showed significant (p<0.05) improvement in the altered antioxidant enzymes (SOD, CAT) and GSH concentration in diabetic treated rats compared with the diabetic control group. MET and REP produced significant effect on the MDA concentration while GLI showed insignificant reduction in the MDA concentration compared with the diabetic control. Findings from this study suggest that the administration of MET, GLI, and REP exerts significant antioxidant effects in alloxan-induced diabetic rats, thus contributing to the protective effect against oxidative stress-induced damage during diabetic complications.

scholarly journals The Effect of Different Laser Irradiation on Cyclophosphamide-Induced Leucopenia in Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Jizhong Zhao ◽  
Ke Cheng ◽  
Haiping Deng ◽  
Ling Zhao ◽  
Lanlan Liu ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Normal Control ◽  
Sham Group ◽  
Control Group ◽  
Sham Treatment ◽  
Irradiation Group ◽  
Model Control ◽  
Model Control Group ◽  
Wbc Count ◽  
First Time

Objective. To assess the effect of different lasers on cyclophosphamide- (CTX-) induced leucopenia in rats.Methods. 11 rats were normal control and 55 rats were injected with a dose of 80 mg/kg CTX for the first time and 40 mg/kg on the 6th and the 11th days to establish a leucopenia model. Rats of the irradiation groups received a 5-minute laser irradiation with either single 10.6 μm or 650 nm laser or alternatively 10.6 μm–650 nm laser irradiation, besides a sham treatment on acupoint Dazhui (DU 14) and acupoint Zusanli (ST 36) of both sides, 8 times for 16 days. Normal and model control group received no treatment.Results. On day 16 after the first CTX injection, the WBC counts from all the laser irradiation groups were significantly higher than those from the model control and the sham group (P<0.05), while there were no significant differences compared with the normal control (P>0.05). The TI of 10.6 μm–650 nm laser irradiation group was significantly higher than that of the model control group (P<0.05).Conclusions. The single and combined 10.6 μm and 650 nm laser irradiation on ST36 and DU14 accelerated the recovery of the WBC count in the rats with leucopenia.

scholarly journals Exenatide Delays the Progression of Nonalcoholic Fatty Liver Disease in C57BL/6 Mice, Which May Involve Inhibition of the NLRP3 Inflammasome through the Mitophagy Pathway

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Ning Shao ◽  
Xin-Yang Yu ◽  
Xue-Fei Ma ◽  
Wen-Jian Lin ◽  
Ming Hao ◽  
...  
Keyword(s):  
Body Weight ◽  
Liver Disease ◽  
Fatty Liver ◽  
Nonalcoholic Fatty Liver Disease ◽  
Nlrp3 Inflammasome ◽  
Fatty Liver Disease ◽  
The Body ◽  
Control Group ◽  
Stress Injury ◽  
Nonalcoholic Fatty Liver

Objective. This study is aimed at investigating whether exenatide (Exe) delays the progression of nonalcoholic fatty liver disease (NAFLD) in C57BL/6 mice by targeting the NLRP3 inflammasome through the autophagy/mitophagy pathway. Methods. Thirty male C57BL/6 mice were randomly divided into three groups: control group (n=10), model group (n=10), and Exe (exenatide) group (n=10). Mouse models of NAFLD and diabetes were established using a high-fat diet and streptozocin. Results. The levels of fasting blood glucose (FBG), total cholesterol (TC), and triglyceride (TG) in the serum were significantly reduced after Exe treatment. The body weight, liver weight/body weight, and number of lipid droplets in the liver significantly decreased in Exe-treated mice. Treatment with Exe markedly reduced the levels of liver lipids, malondialdehyde (MDA), and alanine aminotransferase (ALT) in serum and livers. The number of autophagosomes increased significantly in the Exe group. The expression of LC3A/B-II/I, Beclin-1, Parkin, and BNIP3L increased significantly, whereas NLRP3 and IL-1β proteins were suppressed after Exe treatment. Conclusion. We successfully established a mouse model of NAFLD and diabetes. Exe may reduce oxidative stress injury and inhibit the NLRP3 inflammasome by enhancing the autophagy/mitophagy pathway in liver, which has a protective effect on the liver in NAFLD and diabetes in C57BL/6 mice.

Sign in / Sign up

Export Citation Format

Share Document