scholarly journals Pulmonary Protective Effects of Propofol on Cisplatin-Induced Oxidative Damage in Male Rats

2020 ◽  
Vol 1 (2) ◽  
pp. 72-75
Author(s):  
Sajjad Makhdoomi ◽  
Akram Oftade ◽  
Sodabe Khodabandehlou ◽  
Akram Ranjbar
Keyword(s):  
Oxidative Stress ◽  
Lung Tissue ◽  
Antioxidant Properties ◽  
Male Rats ◽  
Protective Effects ◽  
Protected Group ◽  
Significant Difference ◽  
Total Antioxidant ◽  
Pulmonary Damage ◽  
Male Wistar Rats

Background: The present study was performed to investigate the protective effects of propofol against cisplatin-induced pulmonary toxicity in rats. Methods: A total of 20 male Wistar rats weighing 180-250 g were divided into four groups of control, the cisplatin-intoxicated group intraperitoneally (IP) injected with cisplatin (7 mg/kg/d for a week), the propofol group (10 mg/kg/d, IP), and the protected group receiving propofol (10 mg/kg/d, IP) poisoned by cisplatin. Then, the biomarkers of total antioxidant capacity (TAC), catalase (CAT) activity, and lipid peroxidation (LPO) were measured in homogeneous lung tissues. Results: The data revealed the evidence of oxidative stress in the lung tissue of cisplatin-intoxicated rats as indicated by an increase in the level of LPO compared with propofol and protected groups (P<0.05). Moreover, TAC decreased in the cisplatin group while it increased in the propofol group compared to cisplatin and protected groups (P<0.05). No significant difference was observed between the groups regarding CAT (P>0.05). Protection with propofol ameliorated the oxidative stress induced by cisplatin in the lung tissue because of the reduction of LPO. Conclusion: According to these results, it seems that propofol provides a remarkable protection against cisplatin-induced oxidative pulmonary damage mediated by its antioxidant properties.

scholarly journals Chemoprotective Potential of Helianthemum confertum Against the Loss of Molecular and Functional Integrity of the Liver Cell in Doxorubicin-Treated Rats

2018 ◽  
Vol 9 (07) ◽  
Author(s):  
Radja Djebbari ◽  
Yasmine Chemam ◽  
Nassima Boubekri ◽  
Zohra Lakroun ◽  
Mohammed Kebieche ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Liver Function ◽  
Histological Study ◽  
Antioxidant Properties ◽  
Liver Cells ◽  
Male Rats ◽  
Protective Effects ◽  
Butanol Extract ◽  
Oxidative Stress Parameters ◽  
Stress Parameters

The objective of the current study was led to reveal the possible protective effects of n-butanol extract of Helianthemum confertum (H. confertum) against doxorubicin (DOX) induced liver damage and its implication on the integrity of liver cells. Adult male rats were randomly divided into groups treated with plant extract (50 mg/kg, 100 mg/kg) for 10 days and/or injected with a single dose of DOX (10 mg/kg). Liver function as well as oxidative stress parameters and histological study were estimated. DOX treated rat’s induced hepatic dysfunction revealed by a significant increase in biochemical parameters (serum transaminases, cholesterol and triglycerides) and disturbance in oxidative stress parameters described by an increase in malondialdehyde (MDA) levels, providing information on the loss of cellular integrity. This later elicited histopathological changes in the liver which was confirmed on histological section chowing necrotic cells. Altghout the DOX-treatment reduced significantly the reduced glutathione (GSH) level and the glutathione peroxidase (GPx) activity. The pretreatment of the animals with n-butanol extract of H. confertumat 50 mg/kg and 100 mg/kg counteracted almost all adverse effects induced by DOX. The results showed a considerable decrease in serum markers of liver function and lipid peroxides. There was significant increase in the GSH level and the activity of antioxidant enzyme (GPx), which allowed the normalization of redox status in liver cells. Data suggest that DOX-induced an oxidative stress in rat’s liver and nbutanol extract of H. confertum exerted antioxidant properties.

Impairment of the antioxidant properties of serum albumin in patients with diabetes: protective effects of metformin

2008 ◽  
Vol 114 (3) ◽  
pp. 251-256 ◽  
Author(s):  
Patrice Faure ◽  
Nicolas Wiernsperger ◽  
Camille Polge ◽  
Alain Favier ◽  
Serge Halimi
Keyword(s):  
Oxidative Stress ◽  
Fluorescence Quenching ◽  
Serum Albumin ◽  
Structural Changes ◽  
Antioxidant Properties ◽  
Protective Effects ◽  
Control Subjects ◽  
Significant Difference ◽  
Patients With Diabetes ◽  
Healthy Control

Free radical production is increased during diabetes. Serum albumin is a major antioxidant agent, and structural modification of albumin induced by glucose or free radicals impairs its antioxidant properties. Therefore the aim of the present study was to compare the antioxidant capacities and structural changes in albumin in patients with T2DM (Type 2 diabetes mellitus) treated with MET (metformin) or SU (sulfonylureas) and in healthy control subjects. Structural changes in albumin were studied by fluorescence quenching in the presence of acrylamide. Albumin thiols and fructosamines, reflecting oxidized and glycation-induced changes in serum albumin respectively, were assessed. Structural changes in albumin were demonstrated by a significant decrease in fluorescence quenching in patients with T2DM, with patients treated with MET exhibiting a significant difference in the conformation of albumin compared with patients treated with SU. Oxidation, resulting in a significant decrease in thiol groups and plasma total antioxidant capacity, and glycation, associated with a significant increase in fructosamines, were both found when comparing healthy control subjects with patients with T2DM. When patients treated with MET were compared with those treated with SU, oxidative stress and glycation were found to be significantly lower in MET-treated patients. In conclusion, patients with T2DM have a decrease in the antioxidant properties of serum albumin which may aggravate oxidative stress and, thus, contribute to vascular and metabolic morbidities. Moreover, a significant protection of albumin was found in patients with T2DM treated with MET.

scholarly journals Thymoquinone, but Not Metformin, Protects against Gentamicin-Induced Nephrotoxicity and Renal Dysfunction in Rats

2021 ◽  
Vol 11 (9) ◽  
pp. 3981
Author(s):  
Mansour Alsharidah ◽  
Abdel-Moneim Hafez Abdel-Moneim ◽  
Ashwag Saleh Alsharidah ◽  
Mugahid A. Mobark ◽  
Arshad Husain Rahmani ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Serum Creatinine ◽  
Antioxidant Properties ◽  
Male Rats ◽  
Control Group ◽  
Protective Effects ◽  
Concurrent Administration ◽  
Protective Mechanisms ◽  
Oxidative Markers ◽  
Tract Infections

Background: Gentamicin (GM) is an antibiotic that is widely used to treat many Gram-negative bacteria, such as those involved in urinary tract infections. However, being nephrotoxic, GM dose adjustment and reno-protective elements must be concurrently administered with GM to minimize kidney damage. Oxidative stress plays a pivotal role in the pathogenesis of GM-induced nephrotoxicity. Thymoquinone (TQ) is a promising therapeutic substance, that is being extensively studied in many diseases, such as diabetes mellitus, cancer, hypertension, and others. The powerful antioxidant properties of TQ may greatly help in minimizing GM nephrotoxicity. Metformin (MF) is a well-known, clinically approved oral hypoglycaemic drug that has many other actions, including antioxidant properties. The aim of this work was to evaluate the possible antioxidant and reno-protective effects of TQ and metformin in GM-induced nephrotoxicity in the same model (rats) at the same time. In addition, we aimed to further understand the effects underlying GM-induced nephrotoxicity. Methods: Twenty male rats were randomly divided into four equal groups: the first group (control) received distilled water; the second group received GM only; the third group received concurrent oral TQ and GM; and the fourth group received concurrent oral MF and GM. After 4 weeks, renal function and histopathology, as well as levels of the oxidative markers glutathione peroxidase-1 (GLPX1), superoxide dismutase (SOD), and malondialdehyde (MDA) in the kidney tissues, were assessed. Results: Compared with the control group, and as expected, the GM-injected rats showed significant biochemical and histological changes denoting renal damage. Compared with GM-injected rats, the concurrent administration of TQ with GM significantly reduced the levels of serum creatinine, serum urea, and tissue MDA and significantly increased the levels of GLPX1 and SOD. Concurrent metformin administration with GM significantly increased the levels of both GLPX1 and SOD and significantly decreased the levels of tissue MDA but had no significant effect on serum creatinine and urea levels. Compared with GM-injected rats, the addition of either TQ or MF resulted in a reduction in endothelial proliferation and mesangial hypercellularity. Conclusions: Both TQ and MF effectively alleviated the oxidative stress in GM-induced nephrotoxicity in rats, with TQ but not MF producing a complete reno-protective effect. Further studies for evaluation of different reno-protective mechanisms of TQ should be conducted.

scholarly journals Effects of hydroalcoholic extract of Rosa damascena Mill on the cardiac angiogenesis in diabetic male rats

2020 ◽  
Vol 22 (2) ◽  
pp. 82-87
Author(s):  
Shiva Nosrati ◽  
Mohammad Zarei ◽  
Iraj Salehi ◽  
Sara Soleimani Asl ◽  
Alireza Komaki ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Defense ◽  
Antioxidant Properties ◽  
Serum Levels ◽  
Diabetic Rats ◽  
The Body ◽  
Male Rats ◽  
Rosa Damascena ◽  
Hydroalcoholic Extract ◽  
Significant Difference

Background and aims: The cardiac angiogenesis is one of the complications of diabetes. The oxidative stress occurs when there is an imbalance between the production of free radicals and antioxidant defense of the body. In diabetes mellitus, hyperglycemia induces increased oxidative stress through biological processes. Diabetes is also associated with reduced antioxidant defense by reducing glutathione, catalase, and superoxide dismutase. Rosa damascena Mill has antioxidant properties. This study aimed to investigate the effects of hydroalcoholic extract of R. damascena Mill on cardiac angiogenesis in diabetic rats. Methods: In this experimental study carried out in 2016, a total of 48 adult male Wistar rats (190-200 g) were randomly divided into 8 groups (n=6) including control, extracts (200, 400, and 1000 mg/kg), diabetic, and diabetic plus extracts (200, 400, and 1000 mg/kg). Diabetes was induced by intraperitoneal (i.p.) injection of streptozotocin (STZ) (50 mg/kg) and the rats were gavaged with different doses of extract for 30 days. At the end of the treatment, serum levels of vascular endothelial growth factor (VEGF) were determined by enzymelinked immunosorbent assay and the rat hearts were removed for immunohistochemistry study. Results: The treatment with hydroalcoholic extract of R. damascene Mill had no significant effect on cardiac capillary density [F (7, 40)=0.5, P>0.05] and the serum levels of VEGF [F (7, 40)=0.406, P>0.05]. However, there was no significant difference in blood glucose level in extract groups compared to control rats as well as diabetic plus extract groups compared to diabetic rats [F (7,40)=0.787, P>0.05]. Conclusion: According to our results, the hydroalcoholic extract of R. damascene Mill had no effect on cardiac angiogenesis in the normal and diabetic subjects. These findings were probably due to the insufficient amounts of effective ingredients, especially flavonoids, in this plant, or the duration of extract administration.

scholarly journals Alleviation of Oxidative Stress in Dental Pulp Cells Following 4-Hexylresorcinol Administration in a Rat Model

2021 ◽  
Vol 11 (8) ◽  
pp. 3637
Author(s):  
Jun-Ho Chang ◽  
Dae-Won Kim ◽  
Seong-Gon Kim ◽  
Tae-Woo Kim
Keyword(s):  
Oxidative Stress ◽  
Dental Pulp ◽  
Therapeutic Effects ◽  
Protective Effects ◽  
Mandibular Incisor ◽  
Tnf Α ◽  
Total Antioxidant ◽  
Pulp Cells ◽  
Pre Treatment

Damaged dental pulp undergoes oxidative stress and 4-hexylresorcinol (4HR) is a well-known antioxidant. In this study, we aimed to evaluate the therapeutic effects of a 4HR ointment on damaged dental pulp. Pulp cells from rat mandibular incisor were cultured and treated with 4HR or resveratrol (1–100 μM). These treatments (10–100 μM) exerted a protective effect during subsequent hydrogen peroxide treatments. The total antioxidant capacity and glutathione peroxidase activity were significantly increased following 4HR or resveratrol treatment (p < 0.05), while the expression levels of TNF-α and IL1β were decreased following the exposure to 4HR pre-treatment in an in vitro model. Additionally, the application of 4HR ointment in an exposed dental pulp model significantly reduced the expression of TNF-α and IL1β (p < 0.05). Conclusively, 4HR exerted protective effects against oxidative stress in dental pulp tissues through downregulating TNF-α and IL1β.

scholarly journals The effects of naloxone, diazepam, and quercetin on seizure and sedation in acute on chronic tramadol administration: an experimental study

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Samaneh Nakhaee ◽  
Khadijeh Farrokhfall ◽  
Ebrahim Miri-Moghaddam ◽  
Mohsen Foadoddini ◽  
Masoumeh Askari ◽  
...  
Keyword(s):  
Estimating Equation ◽  
Male Rats ◽  
Average Weight ◽  
Protective Effects ◽  
Chi Square ◽  
Significance Level ◽  
Sedation Level ◽  
Male Wistar Rats ◽  
Level 3 ◽  
Level 2

Abstract Background Tramadol is a widely used synthetic opioid. Substantial research has previously focused on the neurological effects of this drug, while the efficacy of various treatments to reduce the associated side effects has not been well studied. This study aimed to evaluate the protective effects of naloxone, diazepam, and quercetin on tramadol overdose-induced seizure and sedation level in male rats. Methods The project was performed with 72 male Wistar rats with an average weight of 200–250 g. The rats were randomly assigned to eight groups. Tramadol was administered intraperitoneally at an initial dose of 25 mg/kg/day. On the 14th day, tramadol was injected at 75 mg/kg, either alone or together with naloxone, diazepam, and quercetin (acute and chronic) individually or in combination. The rats were monitored for 6 h on the last day, and the number, the duration, and the severity of seizures (using the criteria of Racine) were measured over a 6-h observation period. The sedation level was also assessed based on a 4-point criterion, ranging from 0 to 3. Data were analyzed in SPSS software using Kruskal–Wallis, Chi-square, regression analysis, and generalized estimating equation (GEE) tests. The significance level was set at P < 0.05. Results The naloxone-diazepam combination reduced the number, severity, and cumulative duration of seizures compared to tramadol use alone and reduced the number of higher-intensity seizures (level 3, 4) to a greater extent than other treatments. Naloxone alone reduced the number and duration of seizures but increased the number of mild seizures (level 2). Diazepam decreased the severity and duration of seizures. However, it increased the number of mild seizures (level 2). In comparison with the tramadol alone group, the acute quercetin group exhibited higher numbers of mild (level 2) and moderate (level 3) seizures. Chronic quercetin administration significantly increased the number of mild seizures. In the GEE model, all groups had higher sedation levels than the saline only group (P < 0.001). None of the protocols had a significant effect on sedation levels compared to the tramadol group. Conclusion The combined administration of naloxone and diazepam in acute-on-chronic tramadol poisoning can effectively reduce most seizure variables compared to tramadol use alone. However, none of the treatments improved sedation levels.

scholarly journals Ethanol Extract of Maclura tricuspidata Fruit Protects SH-SY5Y Neuroblastoma Cells against H2O2-Induced Oxidative Damage via Inhibiting MAPK and NF-κB Signaling

2021 ◽  
Vol 22 (13) ◽  
pp. 6946
Author(s):  
Weishun Tian ◽  
Suyoung Heo ◽  
Dae-Woon Kim ◽  
In-Shik Kim ◽  
Dongchoon Ahn ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Free Radical ◽  
Oxidative Damage ◽  
Cell Damage ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Biologically Active ◽  
Mitogen Activated Protein Kinase ◽  
Protective Effects ◽  
Neuroprotective Effects

Free radical generation and oxidative stress push forward an immense influence on the pathogenesis of neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease. Maclura tricuspidata fruit (MT) contains many biologically active substances, including compounds with antioxidant properties. The current study aimed to investigate the neuroprotective effects of MT fruit on hydrogen peroxide (H2O2)-induced neurotoxicity in SH-SY5Y cells. SH-SY5Y cells were pretreated with MT, and cell damage was induced by H2O2. First, the chemical composition and free radical scavenging properties of MT were analyzed. MT attenuated oxidative stress-induced damage in cells based on the assessment of cell viability. The H2O2-induced toxicity caused by ROS production and lactate dehydrogenase (LDH) release was ameliorated by MT pretreatment. MT also promoted an increase in the expression of genes encoding the antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT). MT pretreatment was associated with an increase in the expression of neuronal genes downregulated by H2O2. Mechanistically, MT dramatically suppressed H2O2-induced Bcl-2 downregulation, Bax upregulation, apoptotic factor caspase-3 activation, Mitogen-activated protein kinase (MAPK) (JNK, ERK, and p38), and Nuclear factor-κB (NF-κB) activation, thereby preventing H2O2-induced neurotoxicity. These results indicate that MT has protective effects against H2O2-induced oxidative damage in SH-SY5Y cells and can be used to prevent and protect against neurodegeneration.

The protective effects of 1,3-butanediol acetoacetate diester on decompression sickness in rats

2021 ◽  
Author(s):  
Kun Zhang ◽  
Haidong Zhang ◽  
Hongjie Yi ◽  
Guoyang Huang ◽  
Xupeng Zhao ◽  
...  
Keyword(s):  
Inflammatory Responses ◽  
Decompression Sickness ◽  
Bubble Formation ◽  
Antioxidant Properties ◽  
Oxygen Toxicity ◽  
Causative Factor ◽  
Male Rats ◽  
Drug Candidate ◽  
Pharmacokinetic Analysis ◽  
Protective Effects

Inert gas bubbles are widely accepted as the causative factor of decompression sickness (DCS), resulting in gas embolism and systemic inflammatory responses. The anticonvulsive ketone ester 1,3-butanediol acetoacetate diester (BD-AcAc2) was reported to have the characteristics of increasing blood oxygen partial pressure and anti-inflammation, and was thought to have the potential to reduce bubble formation and alleviate the pathological process of DCS. This study aims to investigate the potential protection of BD-AcAc2 against DCS in a rat model. A single dose of BD-AcAc2 was administered orally to adult male rats (5 g/kg body weight), followed by pharmacokinetic analysis or simulated air dives. After decompression, signs of DCS were monitored, and blood was sampled for biochemical measurements. Blood ketosis peaked at 2 h and lasted for more than 4 h.The incidence of DCS was decreased and postponed significantly in rats treated with BD-AcAc2 compared with those treated with saline (P<0.05). Though BD-AcAc2 failed to reduce bubble load (P>0.05), it showed an obvious decreasing trend. BD-AcAc2 significantly increased blood ppO2 and ameliorated oxidative and inflammatory responses, representing by increased plasma MDA, IL-1, IL-6 and TNF-α and decreased glutathione thiol (P<0.05), while blood pH remained unchanged (P>0.05). These results suggest that BD-AcAc2 exerted beneficial effects on DCS rats mainly related to increasing ppO2, anti-inflammatory and antioxidant properties. Together with its capacity for delaying CNS oxygen toxicity seizures, BD-AcAc2 might be an ideal drug candidate for DCS prevention and treatment.

Protective effects of resveratrol against X-ray irradiation by regulating antioxidant defense system

2018 ◽  
Vol 53 (4) ◽  
pp. 293-298
Author(s):  
S. Salehi ◽  
MR. Bayatiani ◽  
P. Yaghmaei ◽  
S. Rajabi ◽  
MT. Goodarzi ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Antioxidant Defense System ◽  
The Body ◽  
Male Rat ◽  
Protective Effects ◽  
Control Groups ◽  
Sod Activity ◽  
X Ray ◽  
Total Antioxidant ◽  
Ethanol Ethanol

Ionizing radiation interacts with biomolecules to produce free radicals, which can damage all components of the cell. The aim of this study was to evaluate the protective effects of different doses of resveratrol against X-ray-induced damage in male rat. The animals were divided into five groups, each composed of six rats: two groups as control groups received saline or ethanol (ethanol in saline, 25%, V/V as a vehicle). Two groups received resveratrol (5 and 10 mg/kg.bwt) for 30 days before X-ray exposure. One group received X-ray. The rats were sacrificed 24 h after the last exposure, blood samples were collected and serum level of malondialdehyde (MDA), total antioxidant capacity (TAC), and the activities of superoxide dismutase (SOD) and catalase (CAT) were measured by spectrophotometric method. X-ray irradiation significantly increased the levels of MDA and decreased TAC as well as SOD activity as compared with control groups. Furthermore, resveratrol pretreatment led to remarkable decrease in MDA concentration and increase in the activities of SOD and CAT as well as TAC compared to those of controls. Our results revealed antioxidant properties of resveratrol and suggest it as a potent radioprotector to ameliorate X-irradiation induced damage in the body.

scholarly journals A Polysaccharide Purified from Morchella conica Pers. Prevents Oxidative Stress Induced by H2O2 in Human Embryonic Kidney (HEK) 293T Cells

2018 ◽  
Vol 19 (12) ◽  
pp. 4027 ◽  
Author(s):  
Na Xu ◽  
Yi Lu ◽  
Jumin Hou ◽  
Chao Liu ◽  
Yonghai Sun
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activities ◽  
Average Molecular Weight ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Ultrastructural Observation ◽  
Protective Effects ◽  
Ferrous Ions ◽  
Nuclear Condensation ◽  
Morchella Conica

Morchella conica Pers. (M. conica) has been used both as a medical and edible mushroom and possesses antimicrobial properties and antioxidant activities. However, the antioxidant properties of polysaccharides purified from M. conica have not been studied. The aim of this study was to investigate the in vitro antioxidant properties of a polysaccharide NMCP-2 (neutral M. conica polysaccharides-2) purified from M. conica, as determined by radical scavenging assay and H2O2-induced oxidative stress in HEK 293T cells. Results showed that NMCP-2 with an average molecular weight of 48.3 kDa possessed a much stronger chelating ability on ferrous ions and a higher ability to scavenge radical scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH) than the other purified fraction of NMCP-1 from M. conica. Moreover, 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyltetra-zolium bromide (MTT) assay showed that NMCP-2 dose-dependently preserved cell viability of H2O2-induced cells. The NMCP-2 pretreated group reduced the generation of reactive oxygen species (ROS) content and increased the mitochondria membrane potential (MMP) levels. In addition, Hoechst 33342 staining revealed cells treated with NMCP-2 declined nuclear condensation. Ultrastructural observation revealed that NMCP-2 pretreatment alleviated the ruptured mitochondria when exposed to H2O2. Furthermore, western blot analysis showed that NMCP-2 prevented significant downregulation of the protein expression of Bax, cleaved caspases 3, and upregulated Bcl-2 levels. These results suggest the protective effects of NMCP-2 against H2O2-induced injury in HEK 293T cells. NMCP-2 could be used as a natural antioxidant of functional foods and natural drugs.

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