Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

30 September 2015 : Animal Research  

Correlation Between Echo-Tracking Parameters and In Vitro Measurements of Arterial Contraction and Relaxation in Rats Fed a High-Cholesterol Diet

Yi ZhangBCDEF, Wei-Wei ZhanABCEF, Yong-Jie WuBCDE, Bo ZhaoBCDE, Wu-Gang ZhouBCE, Dong-Rui ChenBCE, Wei ZhouBCE, Zhen-Hua LiuBCE, Wei-Min JiangBCE, Lin ZhengBCE

DOI: 10.12659/MSM.894032

Med Sci Monit 2015; 21:2933-2942

Abstract

BACKGROUND: Echo-tracking (ET) is a new technique that allows the assessment of arterial function and stiffness. This study aimed to ascertain the utility of the echo-tracking (ET) technique to assess vascular stiffness in rats with hypercholesterolemia and atherosclerosis.

MATERIAL AND METHODS: ET was used to measure the arterial stiffness of the aorta in cholesterol-fed Sprague-Dawley rats (group T1, n=10, for 4 weeks; group T2, n=10, for 12 weeks) and normal control rats (group C1, n=10; group C2, n=10). In vitro isometric tension experiments were used to measure the maximum contractile tension (MCT) and maximum relaxation percentage (MRR%) of aortic rings. Indicators of arterial stiffness and aortic MCT and MRR% were compared between groups using linear regression analysis. Light microscopic evaluation was used to demonstrate atherosclerotic changes in the aorta.

RESULTS: The rat models were successfully induced; pathological examination of the aortas showed significant atherosclerosis in group T2, but not in groups C1, C2, or T1. The arterial stiffness parameters obtained using ET and aortic rings in vitro showed significant impairments in T1 and T2 rats compared with C1 and C2 controls (all P<0.05 vs. controls). In addition, these impairments were greater in the T2 group than in the T1 group (all P<0.05). Finally, MRR% correlated with the distensibility coefficient (r=0.396, P=0.012), arterial compliance (r=0.317, P=0.047), stiffness parameter b (r=–0.406, P=0.009) and one-point pulse wave β (r=–0.434, P=0.005).

CONCLUSIONS: These results suggest that ET could be used to evaluate the changes in arterial wall elasticity associated with atherosclerosis and hypercholesterolemia.

Keywords: Aorta, Abdominal - physiopathology, Aorta - physiopathology, Arteries - physiopathology, Atherosclerosis - physiopathology, Blood Pressure, Cholesterol - administration & dosage, Diet, Elasticity, Endothelium, Vascular - ultrasonography, Hypercholesterolemia - ultrasonography, Ultrasonography - methods, Vascular Stiffness

0 Comments

Editorial

01 November 2022 : Editorial  

Editorial: Recent Approval of Sotorasib as the First Targeted Therapy for KRAS G12C-Mutated Advanced Non-Small Cell Lung Cancer (NSCLC)

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.938746

Med Sci Monit 2022; 28:e938746

SARS-CoV-2/COVID-19

29 November 2022 : Editorial  

Editorial: The World Health Organization (WHO) Fungal Priority Pathogens List in Response to Emerging Funga...

Med Sci Monit In Press; DOI: 10.12659/MSM.939088  

29 November 2022 : Clinical Research  

Retrospective Study to Identify Risk Factors for Severe Disease and Mortality Using the Modified Early Warn...

Med Sci Monit In Press; DOI: 10.12659/MSM.938647  

24 November 2022 : Clinical Research  

A Prospective Questionnaire-Based Study to Evaluate Factors Affecting the Decision to Receive COVID-19 Vacc...

Med Sci Monit In Press; DOI: 10.12659/MSM.938665  

01 November 2022 : Clinical Research  

Questionnaire-Based Study of 81 Patients in Poland to Evaluate the Course of Inflammatory Bowel Disease and...

Med Sci Monit 2022; 28:e938243

In Press

30 Nov 2022 : Clinical Research  

Retrospective Evaluation of Hematological and Clinical Factors Associated with 30-Day Mortality in 170 Pati...

Med Sci Monit In Press; DOI: 10.12659/MSM.938674  

29 Nov 2022 : Editorial  

Editorial: The World Health Organization (WHO) Fungal Priority Pathogens List in Response to Emerging Funga...

Med Sci Monit In Press; DOI: 10.12659/MSM.939088  

29 Nov 2022 : Clinical Research  

Retrospective Study to Identify Risk Factors for Severe Disease and Mortality Using the Modified Early Warn...

Med Sci Monit In Press; DOI: 10.12659/MSM.938647  

28 Nov 2022 : Clinical Research  

Single-Center Study in Lithuania to Evaluate the Role of Transthoracic Impedance Cardiography in the Diagno...

Med Sci Monit In Press; DOI: 10.12659/MSM.938389  

Most Viewed Current Articles

30 Dec 2021 : Clinical Research  

Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...

DOI :10.12659/MSM.935379

Med Sci Monit 2021; 27:e935379

13 Nov 2021 : Clinical Research  

Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...

DOI :10.12659/MSM.932788

Med Sci Monit 2021; 27:e932788

01 Nov 2020 : Review article  

Long-Term Respiratory and Neurological Sequelae of COVID-19

DOI :10.12659/MSM.928996

Med Sci Monit 2020; 26:e928996

08 Mar 2022 : Review article  

A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...

DOI :10.12659/MSM.936292

Med Sci Monit 2022; 28:e936292

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750