scholarly journals Montelukast Protects Against Renal Damage Due to Cadmium Toxicity: In vivo and In vitro Experiments

2021 ◽  
Vol 15 (4) ◽  
pp. 223-232
Author(s):  
Farnoosh Kaviani ◽  
◽  
Missagh Jalali ◽  
Elham Hoveizi ◽  
Javad Jamshidian ◽  
...  
Keyword(s):  
Vitamin E ◽  
Cell Damage ◽  
Cadmium Toxicity ◽  
Antioxidant Properties ◽  
Protective Effects ◽  
Human Embryonic Kidney Cells ◽  
Pre Treatment ◽  
Gpx Activity

Background: The protective effects of Montelukast (Mont), as an anti-inflammatory drug, against cadmium-induced kidney cell damage have already been studied and identified. Since the significant part of cadmium nephrotoxicity is caused by oxidative stress, this in vivo and in vitro study was conducted to investigate the possible role of Montelukast antioxidant properties in the protection. Methods: In the in vivo section, 42 rats were treated in seven groups of six rats as follows: Control; Cadmium Chloride (CdCl2) control; Montelukast control; CdCl2 plus Montelukast treatment; CdCl2 with Montelukast pre-treatment; Vitamin E control; CdCl2 plus Vitamin E treatment. In the in vitro section, human embryonic kidney cells (HEK293) were treated with CdCl2; Montelukast; Combined CdCl2 and Montelukast; Vitamin E; Combined CdCl2 and Vitamin E. Results: Montelukast, in both treatment and pretreatment forms, reduced serum urea, creatinine, and potassium levels compared to CdCl2 group, in vivo. Similar to vitamin E, the pre-treatment with Montelukast was associated with a significant decrease in Nitric Oxide (NO) and Total Antioxidant Capacity (TAC) in serum and renal tissue, and a significant increase in Glutathione Peroxidase (GPX) activity in serum compared those in the CdCl2 group. In the in vitro section of the study, Montelukast significantly reduced Malondialdehyde (MDA) and NO while the TAC level, Superoxide Dismutase (SOD), and the GPX activity increased significantly. Conclusion: Overall, the antioxidant effects of Montelukast appear to play a prominent role in preventing the renal toxicity due to cadmium exposure.

scholarly journals A REVIEW ON POTENTIAL PROPERTIES AND THERAPEUTIC APPLICATIONS OF LYCOPENE

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Bharat Kwatra
Keyword(s):  
Animal Studies ◽  
Inflammatory Responses ◽  
Cell Damage ◽  
Antioxidant Properties ◽  
Epidemiological Studies ◽  
Protective Effects ◽  
Beneficial Role

The present review is based mainly on papers published between 2000 and 2011 and gives information about the properties of the carotenoid lycopene in chemical and biological systems and its possible role in preventing cardiovascular diseases (CVD). The main aim of this report is to highlight its role as an antioxidant, also reported are bioactive properties that may influence the development of foam cells and protection against endothelial cell damage. The paper will also examine recent observations that lycopene may improve blood flow and reduce inflammatory responses. Lycopene possesses antioxidant properties in vitro, and some epidemiological studies have reported protective effects against the progression of CVD. The oxidation of human low density lipoproteins (LDL) is a fundamental mechanism in the initiation of atherosclerosis. A beneficial role of lycopene as antioxidant in the prevention of CVD is suggested but the data are still controversial. Lycopene is believed to be the most potent carotenoid antioxidant in vitro. Tissue culture experiments and animal studies support potential cardioprotective effects for lycopene and other carotenoids in the blood. Most studies showed beneficial effects of lycopene to individuals who are antioxidant-deficient like elderly patients, or humans exposed to higher levels of oxidative stress like smokers, diabetics, hemodialysis patients and acute myocardial infarction patients. By defining the right population and combining antioxidant potentials of lycopene with vitamins and other bioactive plant compounds, the beneficial role of lycopene in CVD can be clarified in future studies. Keywords: Atherosclerosis, isomerization, in vitro, in vivo, LDL oxidatin

scholarly journals Norepinephrine Protects against Methamphetamine Toxicity through β2-Adrenergic Receptors Promoting LC3 Compartmentalization

2021 ◽  
Vol 22 (13) ◽  
pp. 7232
Author(s):  
Gloria Lazzeri ◽  
Carla L. Busceti ◽  
Francesca Biagioni ◽  
Cinzia Fabrizi ◽  
Gabriele Morucci ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Light Chain ◽  
Adrenergic Receptors ◽  
Cell Damage ◽  
Protective Effects ◽  
Autophagy Flux ◽  
Brain Areas ◽  
Indirect Consequence

Norepinephrine (NE) neurons and extracellular NE exert some protective effects against a variety of insults, including methamphetamine (Meth)-induced cell damage. The intimate mechanism of protection remains difficult to be analyzed in vivo. In fact, this may occur directly on target neurons or as the indirect consequence of NE-induced alterations in the activity of trans-synaptic loops. Therefore, to elude neuronal networks, which may contribute to these effects in vivo, the present study investigates whether NE still protects when directly applied to Meth-treated PC12 cells. Meth was selected based on its detrimental effects along various specific brain areas. The study shows that NE directly protects in vitro against Meth-induced cell damage. The present study indicates that such an effect fully depends on the activation of plasma membrane β2-adrenergic receptors (ARs). Evidence indicates that β2-ARs activation restores autophagy, which is impaired by Meth administration. This occurs via restoration of the autophagy flux and, as assessed by ultrastructural morphometry, by preventing the dissipation of microtubule-associated protein 1 light chain 3 (LC3) from autophagy vacuoles to the cytosol, which is produced instead during Meth toxicity. These findings may have an impact in a variety of degenerative conditions characterized by NE deficiency along with autophagy impairment.

scholarly journals Daphnetin Attenuated Cisplatin-Induced Acute Nephrotoxicity With Enhancing Antitumor Activity of Cisplatin by Upregulating SIRT1/SIRT6-Nrf2 Pathway

2020 ◽  
Vol 11 ◽  
Author(s):  
Xiaoye Fan ◽  
Wei Wei ◽  
Jingbo Huang ◽  
Liping Peng ◽  
Xinxin Ci
Keyword(s):  
Oxidative Stress ◽  
Mitochondrial Dysfunction ◽  
Cell Damage ◽  
Protective Effects ◽  
Normal Tissues ◽  
Nrf2 Signaling Pathway ◽  
Apoptosis Pathways ◽  
Underlying Mechanisms

Cisplatin (CDDP) is a widely used drug for cancer treatment that exhibits major side effects in normal tissues, such as nephrotoxicity in kidneys. The Nrf2 signaling pathway, a regulator of mitochondrial dysfunction, oxidative stress and inflammation, is a potential therapeutic target in CDDP-induced nephrotoxicity. We explored the underlying mechanisms in wild-type (WT) and Nrf2−/− mice on CDDP-induced renal dysfunction in vivo. We found that Nrf2 deficiency aggravated CDDP-induced nephrotoxicity, and Daph treatment significantly ameliorated the renal injury characterized by biochemical markers in WT mice and reduced the CDDP-induced cell damage. In terms of the mechanism, Daph upregulated the SIRT1 and SIRT6 expression in vivo and in vitro. Furthermore, Daph inhibited the expression level of NOX4, whereas it activated Nrf2 translocation and antioxidant enzymes HO-1 and NQO1, and alleviated oxidative stress and mitochondrial dysfunction. Moreover, Daph suppressed CDDP-induced NF-κB and MAPK inflammation pathways, as well as p53 and cleaved caspase-3 apoptosis pathways. Notably, the protective effects of Daph in WT mice were completely abrogated in Nrf2−/− mice. Moreover, Daph enhanced, rather than attenuated, the tumoricidal effect of CDDP.

scholarly journals Investigation of invitro Antioxidant and invivo Protective Effects of Hypericum triquetrifolium Seed Methanol Extracts against Cyclophosphamide-Induced Acute Myelotoxicity, Hemotoxicity and Hepatotoxicity in Rats

2018 ◽  
Author(s):  
Songul Cetik Yildiz ◽  
Cumali Keskin ◽  
Adnan Ayhanci
Keyword(s):  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Stress Index ◽  
Total Phenolic ◽  
Rat Tissues ◽  
Protective Effects ◽  
Methanol Extracts

The aim of this study was to investigate in-vitro antioxidant properties and in-vivo protective effects of different concentrations of Hypericum triquetrifolium Turra. (HT) seed methanol extracts against acute hepatotoxicity, myelotoxicity and hematotoxicity in rats exposed to overdose of cyclophosphamide (CP). HT seed methanol extracts were tested in view of its in-vitro antioxidant activities as total phenolic contents and DPPH free radical-scavenging activity. To investigate in-vivo protective effects of HT seed methanol extracts on rat tissues; tested animals were divided into nine groups. Three groups only were treated with HT extracts (25, 50 and 100 mg/kg HT) for 6 days. Three groups were pre-treated with the extract of HT (25, 50 and 100 mg/kg HT) for 6 days and on the last day they were injected with single dose of CP (150-mg/kg body weight). Two groups were used as control groups and one group was only treated with CP (150 mg/kg) on the 6th day. The toxic effects of CP and protective effects of HT extracts on the nucleated cells which were produced by bone marrow and serum alanine transaminase (ALT), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), oxidative stress index (OSI) levels were investigated biochemically. Additionally, liver tissue samples were examined histopathologically. Our results show that HT seed methanol extract has high total phenolic content and antioxidant activity. Over dose CP administration caused hepatotoxicity, myelotoxicity and hematotoxicity on rat. Whereas, 25, 50 and 100 mg/kg HT plus CP administered groups showed significant protective effects on nucleated cells. And 25, 50, 100 mg/kg HT plus CP treated groups showed an important decrease on serum ALT, ALP, LDH and OSI levels when compared with CP treated group. Our results showed that the administration of different HT doses with high doses of CP significantly reduced hepatotoxicity, myelotoxicity and hematoxicity on rats.

scholarly journals Protective Effects of Aqueous Extract ofLuehea divaricataagainst Behavioral and Oxidative Changes Induced by 3-Nitropropionic Acid in Rats

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Aline Alves Courtes ◽  
Letícia Priscila Arantes ◽  
Rômulo Pillon Barcelos ◽  
Ingrid Kich da Silva ◽  
Aline Augusti Boligon ◽  
...  
Keyword(s):  
Locomotor Activity ◽  
Aqueous Extract ◽  
Antioxidant Properties ◽  
Male Rats ◽  
Protective Effects ◽  
Neuroprotective Effects ◽  
Nitropropionic Acid ◽  
3 Nitropropionic Acid

Huntington’s disease (HD) is an autosomal dominant neurodegenerative disease. Accordingly, 3-nitropropionic acid (3-NP) has been found to effectively produce HD-like symptoms.Luehea divaricata(L. divaricata), popularly known in Brazil as “açoita-cavalo,” may act as a neuroprotective agentin vitroandin vivo. We evaluated the hypothesis that the aqueous extract ofL. divaricatacould prevent behavioral and oxidative alterations induced by 3-NP in rats. 25 adult Wistar male rats were divided into 5 groups: (1) control, (2)L. divaricata(1000 mg/kg), (3) 3-NP, (4)L. divaricata(500 mg/kg) + 3-NP, and (5)L. divaricata(1000 mg/kg) + 3-NP. Groups 2, 4, and 5 receivedL. divaricatavia intragastric gavage daily for 10 days. Animals in groups 3, 4, and 5 received 20 mg/kg 3-NP daily from days 8–10. At day 10, parameters of locomotor activity and biochemical evaluations were performed. Indeed, rats treated with 3-NP showed decreased locomotor activity compared to controls. Additionally, 3-NP increased levels of reactive oxygen species and lipid peroxidation and decreased ratio of GSH/GSSG and acetylcholinesterase activity in cortex and/or striatum. Our results suggest that rats pretreated withL. divaricataprior to 3-NP treatment showed neuroprotective effects when compared to 3-NP treated controls, which may be due to its antioxidant properties.

Protective Effect of Schisandrin on Hydrogen Peroxide-Induced Damage in PC12 Cells

2013 ◽  
Vol 750-752 ◽  
pp. 1545-1548
Author(s):  
Kuang Ren ◽  
Yan Chun Wang ◽  
Hong Yan Fan
Keyword(s):  
Protein Expression ◽  
Pc12 Cells ◽  
Antioxidant Properties ◽  
Immunocytochemical Staining ◽  
Potential Candidate ◽  
Protective Effects ◽  
Neuroprotective Effects ◽  
Pre Treatment ◽  
Vitro Model

In this study, schisandrin was assessed for potential protective effects on pheochromocytoma cell line (PC12 cells). Using PC12 cells damage induced by H2O2(25μmol/L) as in vitro model. After pre-treatment with different concentration of schisandrin (0.3, 0.6, 1.2μM) for 24h, MTT assay was used to detect the cell viability, the supernatant of cells was collected to examine the levels of nitric oxide (NO) in each sample, and immunocytochemical staining was adopted to observe the expression levels of bcl-2. Results showed that schisandrin at different concentrations could increase the viability of PC12 cells and decrease the levels of NO in the culture medium. There were significant differences between schisandrin group and H2O2group (P<0.05,P<0.01). Immunocytochemical staining result revealed that schisandrin could upregulate bcl-2 protein expression. In summary, schisandrin shown significant neuroprotective effects on H2O2-injured PC12 cells through antioxidant properties and upregulate bcl-2 protein expression, and could be a potential candidate for intervention in neurodegenerative diseases.

scholarly journals Potential Anticancer Properties of Grape Antioxidants

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Kequan Zhou ◽  
Julian J. Raffoul
Keyword(s):  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Grape Juice ◽  
Phenolic Antioxidants ◽  
Protective Effects ◽  
Exciting Field ◽  
Grape Skin ◽  
Seed Extracts

Dietary intake of foods rich in antioxidant properties is suggested to be cancer protective. Foods rich in antioxidant properties include grape (Vitis vinifera), one of the world’s largest fruit crops and most commonly consumed fruits in the world. The composition and cancer-protective effects of major phenolic antioxidants in grape skin and seed extracts are discussed in this review. Grape skin and seed extracts exert strong free radical scavenging and chelating activities and inhibit lipid oxidation in various food and cell modelsin vitro. The use of grape antioxidants are promising against a broad range of cancer cells by targeting epidermal growth factor receptor (EGFR) and its downstream pathways, inhibiting over-expression of COX-2 and prostaglandin E2 receptors, or modifying estrogen receptor pathways, resulting in cell cycle arrest and apoptosis. Interestingly, some of these activities were also demonstrated in animal models. However,in vivostudies have demonstrated inconsistent antioxidant efficacy. Nonetheless, a growing body of evidence from human clinical trials has demonstrated that consumption of grape, wine and grape juice exerts many health-promoting and possible anti-cancer effects. Thus, grape skin and seed extracts have great potential in cancer prevention and further investigation into this exciting field is warranted.

scholarly journals Bioactivity of vitamin E

2006 ◽  
Vol 19 (2) ◽  
pp. 174-186 ◽  
Author(s):  
Regina Brigelius-Flohé
Keyword(s):  
Vitamin E ◽  
Molecular Basis ◽  
Antioxidant Properties ◽  
The Body ◽  
The Novel ◽  
Transfer Protein ◽  
Almost All ◽  
Selection Of

More than 80 years after the discovery of the essentiality of vitamin E for mammals, the molecular basis of its action is still an enigma. From the eight different forms of vitamin E, only α-tocopherol is retained in the body. This is in part due to the specific selection of RRR-α-tocopherol by the α-tocopherol transfer protein and in part by its low rate of degradation and elimination compared with the other vitamers. Since the tocopherols have comparable antioxidant properties and some tocotrienols are even more effective in scavenging radicals, the antioxidant capacity cannot be the explanation for its essentiality, at least not the only one. In the last decade, a high number of so-called novel functions of almost all forms of vitamin E have been described, including regulation of cellular signalling and gene expression. α-Tocopherol appears to be most involved in gene regulation, whereas γ-tocopherol appears to be highly effective in preventing cancer-related processes. Tocotrienols appear to be effective in amelioration of neurodegeneration. Most of the novel functions of individual forms of vitamin E have been demonstrated in vitro only and require in vivo confirmation. The distinct bioactivities of the various vitamers are discussed, considering their metabolism and the potential functions of metabolites.

scholarly journals Role of Vitamin E and the Orexin System in Neuroprotection

2021 ◽  
Vol 11 (8) ◽  
pp. 1098
Author(s):  
Maria Ester La Torre ◽  
Ines Villano ◽  
Marcellino Monda ◽  
Antonietta Messina ◽  
Giuseppe Cibelli ◽  
...  
Keyword(s):  
Vitamin E ◽  
Neurodegenerative Diseases ◽  
Antioxidant Properties ◽  
Phenotypic Change ◽  
The Central Nervous System ◽  
Specific Receptors

Microglia are the first line of defense at the level of the central nervous system (CNS). Phenotypic change in microglia can be regulated by various factors, including the orexin system. Neuroinflammation is an inflammatory process mediated by cytokines, by the lack of interaction of specific receptors such as the OX2-OX2R complex, caused by systemic tissue damage or, more often, associated with direct damage to the CNS. Chronic activation of microglia could lead to long-term neurodegenerative diseases. This review aims to explore how tocopherol (vitamin E) and the orexin system may play a role in the prevention and treatment of microglia inflammation and, consequently, in neurodegenerative diseases thanks to its antioxidant properties. The results of animal and in vitro studies provide evidence to support the use of tocopherol for a reduction in microglia inflammation as well as a greater activation of the orexinergic system. Although there is much in vivo and in vitro evidence of vitamin E antioxidant and protective abilities, there are still conflicting results for its use as a treatment for neurodegenerative diseases that speculate that vitamin E, under certain conditions or genetic predispositions, can be pro-oxidant and harmful.

Sign in / Sign up

Export Citation Format

Share Document