scholarly journals Cell shortening and calcium dynamics in epicardial and endocardial myocytes from the left ventricle of Goto-Kakizaki type 2 diabetic rats

2018 ◽  
Vol 103 (4) ◽  
pp. 502-511 ◽  
Author(s):  
Manal Smail ◽  
Lina Al Kury ◽  
Muhammad Anwar Qureshi ◽  
Anatoliy Shmygol ◽  
Murat Oz ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Diabetic Rats ◽  
Calcium Dynamics ◽  
Cell Shortening ◽  
Type 2 Diabetic

Voltage dependence of the Ca2+ transient in endocardial and epicardial myocytes from the left ventricle of Goto–Kakizaki type 2 diabetic rats

2018 ◽  
Vol 446 (1-2) ◽  
pp. 25-33 ◽  
Author(s):  
Lina Al Kury ◽  
Vadym Sydorenko ◽  
Manal M. A. Smail ◽  
Muhammad Anwar Qureshi ◽  
Anatoliy Shmygol ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Voltage Dependence ◽  
Diabetic Rats ◽  
Type 2 Diabetic ◽  
Epicardial Myocytes

Study on the Effect of Cerium Oxide Nanocubes on Full-Thickness Cutaneous Wound Healing of Type 2 Diabetic Rats

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 643-P ◽  
Author(s):  
YANFEI HAN ◽  
LINDONG LI ◽  
YANJUN LIU ◽  
YOU WANG ◽  
CHUNHUA YAN ◽  
...  
Keyword(s):  
Wound Healing ◽  
Cerium Oxide ◽  
Diabetic Rats ◽  
Cutaneous Wound Healing ◽  
Full Thickness ◽  
Cutaneous Wound ◽  
Type 2 Diabetic

On the role of lipid metabolism and lipid peroxidation in the development of retinal disorders in type 2 diabetic rats with myopia

2019 ◽  
Vol 82 (5) ◽  
pp. 56-63
Author(s):  
Abdulhadi Mohammad ◽  
◽  
I. Mikheitseva ◽  
S. Kolomiichuk ◽  
◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Lipid Metabolism ◽  
Diabetic Rats ◽  
Retinal Disorders ◽  
Type 2 Diabetic

Neuroprotection of Maslinic Acid, a Novel Glycogen Phos-phorylase Inhibitor, in Type 2 Diabetic Rats

2010 ◽  
Vol 8 (4) ◽  
pp. 293-297 ◽  
Author(s):  
Teng GUAN ◽  
Yi-Song QIAN ◽  
Meng-Hao HUANG ◽  
Long-Fei HUANG ◽  
Xu-Zhen TANG ◽  
...  
Keyword(s):  
Diabetic Rats ◽  
Maslinic Acid ◽  
Type 2 Diabetic

Blockade of Renin Angiotensin System Ameliorates the Cardiac Arrhythmias and Sympathetic Neural Remodeling in Hearts of Type 2 DM Rat Model

2020 ◽  
Vol 20 (3) ◽  
pp. 464-478 ◽  
Author(s):  
Yomna M. Yehya ◽  
Abdelaziz M. Hussein ◽  
Khaled Ezam ◽  
Elsayed A. Eid ◽  
Eman M. Ibrahim ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cardiac Arrhythmias ◽  
Sympathetic Nerve ◽  
Renin Angiotensin System ◽  
Diabetic Rats ◽  
Angiotensin System ◽  
Type 2 Dm ◽  
Type 2 Diabetic ◽  
Diabetes Induction

Objectives:: The present study was designed to investigate the effects of renin angiotensin system (RAS) blockade on cardiac arrhythmias and sympathetic nerve remodelling in heart tissues of type 2 diabetic rats. Methods:: Thirty-two male Sprague Dawley rats were randomly allocated into 4 equal groups; a) normal control group: normal rats, b) DM group; after type 2 diabetes induction, rats received 2ml oral saline daily for 4 weeks, c) DM+ ACEi: after type 2 diabetes induction, rats were treated with enalapril (10 mg/kg, orally for 4 weeks) and d) DM+ ARBs: after type 2 diabetes induction, rats were treated with losartan (30 mg/kg, orally for 4 weeks). Results:: In type 2 diabetic rats, the results demonstrated significant prolongation in Q-T interval and elevation of blood sugar, HOMA-IR index, TC, TGs, LDL, serum CK-MB, myocardial damage, myocardial MDA, myocardial norepinephrine and tyrosine hydroxylase (TH) density with significant reduction in serum HDL, serum insulin and myocardial GSH and CAT. On the other hand, blockade of RAS at the level of either ACE by enalapril or angiotensin (Ag) receptors by losartan resulted in significant improvement in ECG parameters (Q-T), cardiac enzymes (CK-MB), cardiac morphology, myocardial oxidative stress (low MDA, high CAT and GSH) and myocardial TH density. Conclusions:: RAS plays a role in the cardiac sympathetic nerve sprouting and cardiac arrhythmias induced by type 2 DM and its blockade might have a cardioprotective effect via attenuation of sympathetic nerve fibres remodelling, myocardial norepinephrine contents and oxidative stress.

Exercise and Stevia Rebaudiana (R) Extracts Attenuate Diabetic Cardiomyopathy in Type 2 Diabetic Rats: Possible Underlying Mechanisms

2020 ◽  
Vol 20 (7) ◽  
pp. 1117-1132
Author(s):  
Abdelaziz M. Hussein ◽  
Elsayed A. Eid ◽  
Ismaeel Bin-Jaliah ◽  
Medhat Taha ◽  
Lashin S. Lashin
Keyword(s):  
Oxidative Stress ◽  
Blood Glucose ◽  
Diabetic Cardiomyopathy ◽  
Caspase 3 ◽  
Stevia Rebaudiana ◽  
Diabetic Rats ◽  
Control Group ◽  
Underlying Mechanisms ◽  
Type 2 Diabetic

Background and Aims: In the current work, we studied the effects of exercise and stevia rebaudiana (R) extracts on diabetic cardiomyopathy (DCM) in type 2 diabetic rats and their possible underlying mechanisms. Methods: : Thirty-two male Sprague Dawley rats were randomly allocated into 4 equal groups; a) normal control group, b) DM group, type 2 diabetic rats received 2 ml oral saline daily for 4 weeks, c) DM+ Exercise, type 2 diabetic rats were treated with exercise for 4 weeks and d) DM+ stevia R extracts: type 2 diabetic rats received methanolic stevia R extracts. By the end of the experiment, serum blood glucose, HOMA-IR, insulin and cardiac enzymes (LDH, CK-MB), cardiac histopathology, oxidative stress markers (MDA, GSH and CAT), myocardial fibrosis by Masson trichrome, the expression of p53, caspase-3, α-SMA and tyrosine hydroxylase (TH) by immunostaining in myocardial tissues were measured. Results: T2DM caused a significant increase in blood glucose, HOMA-IR index, serum CK-MB and LDH, myocardial damage and fibrosis, myocardial MDA, myocardial α-SMA, p53, caspase-3, Nrf2 and TH density with a significant decrease in serum insulin and myocardial GSH and CAT (p< 0.05). On the other hand, treatment with either exercise or stevia R extracts significantly improved all studied parameters (p< 0.05). Moreover, the effects of stevia R was more significant than exercise (p< 0.05). Conclusion: Both exercise and methanolic stevia R extracts showed cardioprotective effects against DCM and Stevia R offered more cardioprotective than exercise. This cardioprotective effect of these lines of treatment might be due to attenuation of oxidative stress, apoptosis, sympathetic nerve density and fibrosis and upregulation of the antioxidant transcription factor, Nrf2.

Regulatory effects of hawthorn polyphenols on hyperglycemic, inflammatory, insulin resistance responses, and alleviation of aortic injury in type 2 diabetic rats

2021 ◽  
Vol 142 ◽  
pp. 110239
Author(s):  
Suwen Liu ◽  
Jincheng Yu ◽  
Mengfan Fu ◽  
Xinfang Wang ◽  
Xuedong Chang
Keyword(s):  
Insulin Resistance ◽  
Aortic Injury ◽  
Diabetic Rats ◽  
Regulatory Effects ◽  
Type 2 Diabetic

Pulmonary impairment in type 2 diabetic rats and its improvement by exercise

2021 ◽  
Author(s):  
Liz Maria Queiroz Machado ◽  
Daniel Silveira Serra ◽  
Thayanne Gomes Neves ◽  
Francisco Sales Ávila Cavalcante ◽  
Vânia Marilande Ceccatto ◽  
...  
Keyword(s):  
Diabetic Rats ◽  
Pulmonary Impairment ◽  
Type 2 Diabetic
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