Aqueous extract of large cardamom inhibits vascular damage, oxidative stress, and metabolic changes in fructose-fed hypertensive rats

2021 ◽  
pp. 1-11
Author(s):  
Kanthlal Sk ◽  
Arya Vs ◽  
Bindhu Paul–Prasanth ◽  
Vijayakumar M ◽  
Rema Shree Ab ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Aqueous Extract ◽  
Metabolic Changes ◽  
Vascular Damage ◽  
Hypertensive Rats ◽  
Large Cardamom

scholarly journals Folic Acid Can Reduce Hyperhomocysteinemia-induced Vascular Damage by Immune/Inflammatory Response in Spontaneously Hypertensive Rats

2020 ◽  
Author(s):  
Lihua Zhang ◽  
Zhongliang li ◽  
Changcheng Xing ◽  
Ning Gao ◽  
Ping Cao ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Folic Acid ◽  
Spontaneously Hypertensive Rats ◽  
Vascular Damage ◽  
Inflammatory Factors ◽  
Hypertensive Rats ◽  
Stress Indicators ◽  
Spontaneously Hypertensive ◽  
Inflammatory Molecules ◽  
Oxidative Stress Indicators

Abstract Background Hypertension associated with hyperhomocysteinemia (HHcy) is correlated with a high risk of vascular diseases. However, the mechanisms of HHcy-associated hypertensive vascular damage and the efficacy of folic acid (FA) as a treatment have not been fully elucidated. The aim of the present study was to evaluate the role of immune/inflammatory molecules and oxidizing factors in HHcy-associated hypertensive vascular damage, and to observe the intervention effect of FA on the two vascular injury factors. Methods Wistar-Kyoto rats (WKYs) and spontaneously hypertensive rats (SHRs) were administered DL-Hcy intraperitoneally to mimic HHcy and hypertension associated with HHcy for 12 weeks. WKYs and SHRs were randomized into WKY group, HHcy group, SHR group, SHR + HHcy group and SHR + HHcy + FA group. Mean tail artery blood pressure, plasma Hcy, serum SOD and MDA of rats in each group were compared. The thoracic aorta and bilateral carotid artery of rats were harvested for morphometric and immunostaining analyses. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot were used to detect the expression of immune/inflammatory molecules such as TNF-α, IL-6, NF-κB p65/Rela and NF-κB2 and oxidative factors such as Nox2 and Nox4. Results We found that vascular inflammatory factors of vascular adhesion protein-1 (VAP-1), interleukin-6 (IL-6), and nuclear factor-κ-gene binding (NF-κB) p65/Rela in HHcy-associated hypertensive rats were significantly higher than those in SHRs (P༜0.05). While the oxidative stress indicators of Nox2 and Nox4 in HHcy-associated hypertensive rats were not significantly higher than those in SHRs (P༞0.05). Compared with SHRs, FA intervention in HHcy-associated hypertensive rats significantly increased serum superoxide dismutase (SOD) levels (P = 0.000) and significantly reduced vascular inflammatory factors of IL-6 and NF-κB p65/Rela (P༜0.05), but did not significantly change the oxidative stress indicators of Nox2 and Nox4 (P༞0.05). Conclusions HHcy-induced immune/inflammatory response plays a dominant role in vascular damage of HHcy-associated hypertensive rats. In addition to reducing the negative effects of HHcy, FA might involve unique antioxidant effects and inhibition of immune/inflammatory overreaction for HHcy-associated hypertensive rats.

Antioxidant and vasorelaxant effects of aqueous extract of large cardamom in L-NAME induced hypertensive rats

2020 ◽  
Vol 42 (7) ◽  
pp. 581-589
Author(s):  
S K Kanthlal ◽  
Jipnomon Joseph ◽  
Bindhu Paul ◽  
Vijayakumar M ◽  
Uma Devi P
Keyword(s):  
Aqueous Extract ◽  
Hypertensive Rats ◽  
Large Cardamom

Aqueous Extract of Tetrapleura tetraptera (Mimosaceae) Prevents Hypertension, Dyslipidemia and Oxidative Stress in High Salt-sucrose Induced Hypertensive Rats

Pharmacologia ◽  
2012 ◽  
Vol 3 (9) ◽  
pp. 397-405 ◽  
Author(s):  
Dimo Theophile ◽  
Bella Ndzana Martin Thi ◽  
Ngo Lemba Tom Esther ◽  
Aboubakar Oumarou Bibi Farou ◽  
Tsala David Emery
Keyword(s):  
Oxidative Stress ◽  
Aqueous Extract ◽  
High Salt ◽  
Hypertensive Rats ◽  
Tetrapleura Tetraptera ◽  
And Oxidative Stress

Attenuation of oxidative stress in hepatic and pancreatic tissues of STZ-induced diabetic rats treated with aqueous extract of Vochysia rufa

Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
NM De Gouveia ◽  
IB Moraes ◽  
RMF Sousa ◽  
MB Neto ◽  
AV Mundim ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Aqueous Extract ◽  
Diabetic Rats

Ruta montana evokes antihypertensive activity through increase of prosta-glandins release in L-NAME-induced hypertensive rats

2020 ◽  
Vol 20 ◽  
Author(s):  
El-Ouady Fadwa ◽  
Mohamed Eddouks
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Aqueous Extract ◽  
Antihypertensive Effect ◽  
Antihypertensive Activity ◽  
Computer Assisted ◽  
Hypertensive Rats ◽  
Vasorelaxant Effect ◽  
Vasorelaxant Activity ◽  
Ruta Montana

Aims: The aim of the study was to investigate experimentally the antihypertensive effect of Ruta Montana. Background: Ruta montana L. is traditionally used in Moroccan herbal medicine to treat hypertension. This study aimed to evaluate experimentally the hypotensive and vasoactive properties of this plant. Objective: The objective of the study was to evaluate the effect of the aqueous extract of Ruta Montana on blood pressure parameters in LNAME-induced hypertensive rats and to determine the vasorelaxant activity of this aqueous extract. Methods: The antihypertensive effect of the aqueous extract obtained from Ruta montana aerial parts (RMAPAE) (200 mg/kg) was evaluated in normal and anesthetized hypertensive rats. Blood pressure parameters (systolic blood pressure (SBP), mean blood pressure (MBP) and diastolic blood pressure (DBP)) and heart rate were measured using a tail-cuff and a computer-assisted monitoring device. The acute and chronic effect of RMAPAE was recorded during 6 hours for the acute experiment and during 7 days for the sub-chronic test. In the other set, the vasorelaxant effect of RMAPAE on the contractile response was undertaken in isolated thoracic aorta. Results: The results indicated that RMAPAE extract significantly decreased SBP, MBP, DBP and heart rate in L-NAMEinduced hypertensive rats. Furthermore, RMAPAE was demonstrated to induce a dose dependent relaxation in the aorta precontracted with Epinephrine or KCl. More interestingly, this vasorelaxant activity of RMAPAE seems to be probably mediated through the prostaglandins pathway. Conclusion: The present study illustrates the beneficial action of Ruta montana on hypertension and supports then its use as an antihypertensive agent.

In Vivo Evidence for Microvascular Oxidative Stress in Spontaneously Hypertensive Rats

Hypertension ◽  
1995 ◽  
Vol 25 (5) ◽  
pp. 1083-1089 ◽  
Author(s):  
Hidekazu Suzuki ◽  
Allen Swei ◽  
Benjamin W. Zweifach ◽  
Geert W. Schmid-Schönbein
Keyword(s):  
Oxidative Stress ◽  
Spontaneously Hypertensive Rats ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive

scholarly journals Metabolic Changes and Oxidative Stress in Diabetic Kidney Disease

Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1143
Author(s):  
Midori Sakashita ◽  
Tetsuhiro Tanaka ◽  
Reiko Inagi
Keyword(s):  
Oxidative Stress ◽  
Kidney Disease ◽  
Stress Responses ◽  
Diabetic Kidney Disease ◽  
Renin Angiotensin System ◽  
Therapeutic Agents ◽  
Metabolic Changes ◽  
Diabetic Kidney ◽  
Glucose Levels ◽  
Patients With Diabetes

Diabetic kidney disease (DKD) is a major cause of end-stage kidney disease, and it is crucial to understand the pathophysiology of DKD. The control of blood glucose levels by various glucose-lowering drugs, the common use of inhibitors of the renin–angiotensin system, and the aging of patients with diabetes can alter the disease course of DKD. Moreover, metabolic changes and associated atherosclerosis play a major role in the etiology of DKD. The pathophysiology of DKD is largely attributed to the disruption of various cellular stress responses due to metabolic changes, especially an increase in oxidative stress. Therefore, many antioxidants have been studied as therapeutic agents. Recently, it has been found that NRF2, a master regulator of oxidative stress, plays a major role in the pathogenesis of DKD and bardoxolone methyl, an activator of NRF2, has attracted attention as a drug that increases the estimated glomerular filtration rate in patients with DKD. This review outlines the altered stress responses of cellular organelles in DKD, their involvement in the pathogenesis of DKD, and discusses strategies for developing therapeutic agents, especially bardoxolone methyl.

scholarly journals In Vitro and In Vivo Antioxidant Properties of Taraxacum officinale in Nω-Nitro-l-Arginine Methyl Ester (L-NAME)-Induced Hypertensive Rats

Antioxidants ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 309
Author(s):  
Olukayode O. Aremu ◽  
Adebola O. Oyedeji ◽  
Opeoluwa O. Oyedeji ◽  
Benedicta N. Nkeh-Chungag ◽  
Constance R. Sewani Rusike
Keyword(s):  
Oxidative Stress ◽  
Free Radical ◽  
Methyl Ester ◽  
Leaf Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Hypertensive Rats ◽  
Total Antioxidant

Oxidative stress has gained attention as one of the fundamental mechanisms responsible for the development of hypertension. The present study investigated in vitro and in vivo antioxidant effects of 70% ethanol-water (v/v) leaf and root extracts of T. officinale (TOL and TOR, respectively). Total phenolic and flavonoid content of plant extracts were assessed using Folin Ciocalteau and aluminium chloride colorimetric methods; while, 2,2-diphenyl-1-picrlhydrazyl (DPPH), 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and ferric reducing antioxidant power (FRAP) protocols were used to determine the free radical scavenging and total antioxidant capacities (TAC), respectively. The in vivo total antioxidant capacity and malondialdehyde acid (MDA) levels for lipid peroxidation tests were performed on organ homogenate samples from Nω-nitro-L-arginine methyl ester (L-NAME)-induced hypertensive rats treated with leaf extract, TOL (500 mg/kg/day) and TOR (500 mg/kg/day) for 21 days. Results showed that compared to TOR, TOL possessed significantly higher (p < 0.01) polyphenol (4.35 ± 0.15 compared to 1.14 ± 0.01) and flavonoid (23.17 ± 0.14 compared to 3 ± 0.05) content; free radical scavenging activity (EC50 0.37 compared to 1.34 mg/mL) and total antioxidant capacities (82.56% compared to 61.54% ABTS, and 156 ± 5.28 compared to 40 ± 0.31 FRAP) and both extracts showed no toxicity (LD50 > 5000 mg/kg). TOL and TOR significantly (p < 0.01) elevated TAC and reduced MDA levels in targets organs. In conclusion, T. officinale leaf extract possesses significant anti-oxidant effects which conferred significant in vivo antioxidant protection against free radical-mediated oxidative stress in L-NAME-induced hypertensive rats.

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