scholarly journals Evaluation of the Antihyperlipidemic and Antioxidant Effects of Catharanthus roseus Extracted from Vinca minor in Diabetic Rats

2021 ◽  
pp. 1-13
Author(s):  
Shimaa Mohammed Hasnin Aboelnaga
Keyword(s):  
Oxidative Stress ◽  
Protective Role ◽  
Diabetic Rats ◽  
The Body ◽  
Blood Analysis ◽  
Diabetic Patients ◽  
Defence Mechanism ◽  
Glucose Levels ◽  
Antioxidant Effects

The role of oxidative stress is known among the patients of diabetes as the level of reactive oxygen species was high among diabetic patients. This oxidative stress is generated in diabetic patients due to continuous high glucose levels that cause to decrease in the defence mechanism for antioxidant enzymes within the body. The reduction of the antioxidant defence mechanism leads towards the generation of hydroxyl radicals consequently results in lipid peroxidation. The objective of this study is to examine the efficacy of Vincamine extracts as antihyperlipidemic and antioxidant in diabetic rats. To evaluate the antihyperlipidemic and antioxidant effects of Vincamine, adult BB Wistar rats, weighing 150- 170 g were obtained and divided in six groups. Blood analysis was taken measure the observed parameters. The findings showed vincamine display antioxidant, hypoglycaemic and hypolipidemic activity.It is concluded that vincamine hasa protective role and acts as a good antioxidant activity along with effective antidiabetic effects.

Protective role of Sterculia tragacantha aqueous extract on pancreatic gene expression and oxidative stress parameters in streptozotocin-induced diabetic rats

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Basiru Olaitan Ajiboye ◽  
Babatunji Emmanuel Oyinloye ◽  
Jennifer Chidera Awurum ◽  
Sunday Amos Onikanni ◽  
Adedotun Adefolalu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Protective Role ◽  
Diabetic Rats ◽  
Gene Expressions ◽  
Ki 67 ◽  
Oxidative Stress Parameters ◽  
And Oxidative Stress ◽  
Stress Parameters

Abstract Objectives The current study evaluates the protective role of aqueous extract of Sterculia tragacantha leaf (AESTL) on pancreatic gene expressions (insulin, PCNA, PDX-1, KI-67 and GLP-1R) and oxidative stress parameters in streptozotocin-induced diabetic rats. Methods Diabetes mellitus was induced into the experimental Wistar animals via intraperitoneal (IP) injection of streptozotocin (35 mg/kg body weight) and 5% glucose water was given to the rats for 24 h after induction. The animals were categorized into five groups of 10 rats each as follows normal control, diabetic control, diabetic rats administered AESTL (150 and 300 mg/kg body weight) and diabetic rats administered metformin (200 mg/kg) orally for two weeks. Thereafter, the animals were euthanized, blood sample collected, pancreas harvested and some pancreatic gene expressions (such as insulin, PCNA, PDX-1, KI-67, and GLP-1R)s as well as oxidative stress parameters were analyzed. Results The results revealed that AESTL significantly (p<0.05) reduced fasting blood glucose level, food and water intake, and lipid peroxidation in diabetic rats. Diabetic rats administered different doses of AESTL showed a substantial upsurge in body weight, antioxidant enzyme activities, and pancreatic gene expressions (insulin, PCNA, PDX-1, KI-67, and GLP-1R). Conclusions It can therefore be concluded that AESTL has the ability to protect the pancreas during diabetes mellitus conditions.

scholarly journals A Protective Role of Paeoniflorin in Fluctuant Hyperglycemia-Induced Vascular Endothelial Injuries through Antioxidative and Anti-Inflammatory Effects and Reduction of PKCβ1

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Jing-Shang Wang ◽  
Ye Huang ◽  
Shuping Zhang ◽  
Hui-Jun Yin ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Protein Level ◽  
Umbilical Vein ◽  
Protective Role ◽  
Vascular Endothelial ◽  
Glucose Levels ◽  
Umbilical Vein Endothelial Cells

Hyperglycemia fluctuation is associated with diabetes mellitus (DM) complications when compared to persistent hyperglycemia. Previous studies have shown that paeoniflorin (PF), through its antiapoptosis, anti-inflammation, and antithrombotic properties, effectively protects against cardiovascular and cerebrovascular disease. However, the mechanism underlying the protection from PF against vascular injuries induced by hyperglycemia fluctuations remains poorly understood. Herein, we investigated the potential protective role of PF on human umbilical vein endothelial cells (HUVECs) subjected to intermittent glucose levels in vitro and in DM rats with fluctuating hyperglycemia in vivo. A remarkable increased apoptosis associated with elevated inflammation, increased oxidative stress, and high protein level of PKCβ1 was induced in HUVECs by intermittently changing glucose for 8 days, and PF recovered those detrimental changes. LY333531, a potent PKCβ1 inhibitor, and metformin manifested similar effects. Additionally, in DM rats with fluctuating hyperglycemia, PF protected against vascular damage as what has been observed in vitro. Taken together, PF attenuates the vascular injury induced by fluctuant hyperglycemia through oxidative stress inhibition, inflammatory reaction reduction, and PKCβ1 protein level repression, suggesting its perspective clinical usage.

scholarly journals The protective role of virgin coconut oil on the alloxan-induced oxidative stress in the liver, kidneys and heart of diabetic rats

2019 ◽  
Vol 10 (4) ◽  
pp. 2114-2124 ◽  
Author(s):  
Siniša Đurašević ◽  
Nebojša Jasnić ◽  
Marko Prokić ◽  
Ilijana Grigorov ◽  
Vesna Martinović ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Coconut Oil ◽  
Protective Role ◽  
Diabetic Rats ◽  
Toxic Effects ◽  
Virgin Coconut Oil ◽  
Tissue Specific

Our results show that VCO supplementation ameliorates some toxic effects of alloxan induced diabetes, and that the changes are tissue specific.

scholarly journals Protective Role of Myricetin on Markers of Oxidative Stress in Human Erythrocytes Subjected to Oxidative Stress

2009 ◽  
Vol 4 (2) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Kanti Bhooshan Pandey ◽  
Neetu Mishra ◽  
Syed Ibrahim Rizvi
Keyword(s):  
Oxidative Stress ◽  
Protective Role ◽  
Protein Carbonyl ◽  
Human Erythrocytes ◽  
The Body ◽  
Protein Carbonyl Content ◽  
Tert Butylhydroperoxide ◽  
Markers Of Oxidative Stress ◽  
Dose Dependent

The protective effect of myricetin against tert-butylhydroperoxide (t-BHP) induced oxidative stress in human erythrocytes was investigated. Incubating erythrocytes with t-BHP (10−5M) caused development of oxidative stress, as evidenced by significant ( p < 0.05) increase in erythrocyte malondialdedyde (MDA) and protein carbonyl content, and decrease in intracellular reduced glutathione (GSH), membrane sulphydryl (-SH) groups. Incubation of erythrocytes with myricetin, simultaneously with t-BHP, protected the erythrocytes from oxidative stress, an effect which was dose-dependent. The results demonstrate that myricetin attenuates t-BHP induced oxidative damage, suggesting that supplementation of diet with myricetin/myricetin rich food may be beneficial in all pathological conditions where the antioxidant system of the body is overwhelmed.

scholarly journals The antioxidant effects of melatonin in blood platelets during exposure to electromagnetic radiation – an in vitro study

2021 ◽  
Vol 75 (1) ◽  
pp. 889-895
Author(s):  
Małgorzata Lewicka ◽  
Magdalena Zawadzka ◽  
Gabriela Henrykowska ◽  
Maciej Rutkowski ◽  
Andrzej Buczyński
Keyword(s):  
Oxidative Stress ◽  
Electromagnetic Radiation ◽  
Blood Platelets ◽  
In Vitro Study ◽  
Oxygen Metabolism ◽  
Protective Role ◽  
Negative Effect ◽  
Antioxidant Effects

Abstract Objectives The article presents the results of an in vitro study aimed at identifying changes in parameters of oxidative stress – concentration of malondialdehyde (MDA), enzymatic activity of superoxide dismutase (SOD-1) and protective antioxidant role of melatonin (MLT) during the exposure of blood platelets to electromagnetic radiation (EMR) emitted by monitors. Methods Platelets were exposed to an EMR for 30- and 60 min. generated by monitors (1 kHz frequency, 220 V/m intensity). In each sample the level of SOD-1 activity and concentration of MDA were determined. Results The MDA concentration increased significantly after 30-and 60-min. irradiation, as compared to control values (2.53 vs 1.36; 3.64 vs 1.36 nmol/109 blood platelets) and after the addition of MLT it decreased (2.53 vs 1.55; 3.64 vs 1.12 nmol/109 blood platelets). The activity of SOD-1 increased significantly compared to control values after 30 min. and 60 min. of exposure to EMR (1.97vs 0.75; 2.08 vs 0.75 U/g of protein), and significantly decreased after the addition of MLT only in samples exposed for 60 min. (2.08 vs 0.95 U/g of protein). Discussion The results demonstrated the possibly negative effect of EMR on oxygen metabolism of blood platelets and indicated a possible protective role of melatonin in this process.

scholarly journals Liver Dysfunction and Oxidative Stress in Streptozotocin-Induced Diabetic Rats: Protective Role of Artemisia Turanica

2019 ◽  
Vol 22 (2) ◽  
pp. 109-114
Author(s):  
Hassan Bgheri Yazdi ◽  
Vida Hojati ◽  
Abdolhossein Shiravi ◽  
Sara Hosseinian ◽  
Gholamhassan Vaezi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Liver Dysfunction ◽  
Protective Role ◽  
Diabetic Rats ◽  
And Oxidative Stress

scholarly journals Structural Changes in the Urinary Bladder of Streptozotocin-Induced Diabetic Rats and the Possible Protective Role of Insulin

2020 ◽  
Vol 17 (3) ◽  
Author(s):  
Amir M. Bassam Elnagar ◽  
Suhaidah Ibrahim ◽  
Mostafa A. M. Abouelnaga ◽  
Amro Mohamed Soliman
Keyword(s):  
Diabetes Mellitus ◽  
Urinary Bladder ◽  
Protective Role ◽  
Diabetic Rats ◽  
Diabetic Group ◽  
Control Group ◽  
Diabetic Patients ◽  
Pathological Changes ◽  
Histopathological Changes

Introduction: Diabetes mellitus possesses severe adverse effects on the urinary bladder. Urinary bladder dysfunction is a common health problem affecting diabetic patients causing recurrent infections and urinary incontinence. Objective: To evaluate the histopathological changes in the tissue of urinary bladder in Streptozotocin (STZ) diabetic rats and the protective role of insulin. Methods: Thirty rats were classified into three groups: a control group which received no treatment (Group A), STZ diabetic group (Group B) and Insulin diabetic group (Group C). Animals were sacrificed after six weeks and urinary bladders were harvested and processed for light and electron microscopy. Results: Several histopathological changes were observed in the urinary bladder of the diabetic group including an increase in the thickness of the urothelium, epithelial cells with dark nuclei and large lenticular vesicles, and wide intercellular spaces with numerous collagen fibers. Treatment with insulin reduced the pathological changes induced by STZ. Conclusion: Diabetes mellitus caused significant pathological changes in the urinary bladder of experimental rats. For instance, treating diabetic animals with insulin prevented the development of damaging effects of diabetes on the urinary bladder.

Protective role of aqueous extract of Phyllanthus amarus on oxidative stress in pancreas of streptozotocin induced diabetic male Wistar rats

2016 ◽  
Vol 2 (1) ◽  
pp. 23 ◽  
Author(s):  
Sasi Bhusana Rao Bongu ◽  
Saisree Sagree ◽  
Vijayabharathi Gudapareddy ◽  
Malliah Putakala ◽  
Sreenivasulu Nukala ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Aqueous Extract ◽  
Reduced Glutathione ◽  
Protective Role ◽  
Pancreatic Tissue ◽  
Diabetic Rats ◽  
Phyllanthus Amarus ◽  
Glutathione S Transferase ◽  
Male Wistar Rats

Diabetes mellitus has been associated with oxidative stress. The present study was performed to investigate the pancreas protective activities of Phyllanthus amarus aqueous extract (PAAEt) in streptozotocin (STZ) induced diabetic rats. Oral administration of PAAEt (200mg/kg bw) to diabetic rats for 60 days significantly (p<0.05) decreased antioxidant enzymes such as glutathione peroxidase, glutathione-s-transferase, glutathione reductase, superoxide dismutase, catalase and depletion of reduced glutathione in panceas which illustrates that increased lipid peroxidation (107 %) was restored to control levels. Co-treatment with PAAEt revealed the therapeutic efficacy against oxidative stress in pancreatic tissue. Hence extract of this plant could be used as an adjuvant therapy for the prevention and/or management of diabetes.

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