View clinical trials related to Vascular Stiffness.
Filter by:The research is designed as a randomized, 2-arm, parallel, controlled, human clinical trial to investigate the effects of avocado and mango consumption for 8 weeks on indices of macro- and micro- vascular function in individuals with prediabetes. FMD of the brachial artery, pulse wave velocity (PWV), central blood pressure (cBP), and Optical Coherence Tomography Angiography (OCTA) of the eye will be used for vascular assessments. The research plan will also explore cognitive and kidney function benefits of regular avocado and mango intake using specified cognitive tasks and kidney function biomarkers
Efforts to identify individuals at a higher risk for adverse cardiovascular outcomes focus on traditional risk factors, such as age, gender, smoking status, blood pressure, and cholesterol; however, this approach does not directly assess cardiovascular function and underestimates the risk of experiencing adverse cardiovascular outcomes in women. This prospective, observational trial will examine the ability of the Assessment of Large and Small Artery Elasticity for the Early Detection of Cardiovascular Disease screening protocol, a series of non-invasive procedures to identify middle-aged and older women who are at elevated risk for experiencing an adverse cardiovascular event in the five-year period after screening. The predictive value of the Assessment of Large and Small Artery Elasticity for the Early Detection of Cardiovascular Disease protocol will also be compared to the Framingham Risk Score to determine if one method has better sensitivity for estimating risk for an adverse cardiovascular outcome.
Vitamin K is required for the activation of the inhibitor of vascular calcification: Matrix Gla Protein (MGP). In an earlier study the beneficial effect of menaquinone-7 (MK-7), a vitamin K2 form, was observed on the stiffness of the vessel wall in postmenopausal women. It decreased the circulating form of inactive MGP and improved the vascular elasticity (local) and aortic pulse wave velocity (regional). The decrease of circulating inactive MGP was observed after 2-3 months MK-7 supplementation and the effect of MK-7 on the clinical endpoints was observed within 3 years of supplementation. It is demonstrated in several studies that cardiovascular risk increases with decreasing vitamin K intake and increasing levels of inactive MGP. In this study the investigators select subjects in the highest tertile of circulating inactive MGP. This study group will consist of subjects with increased cardiovascular risk and it is expected that effects of MK-7 on clinical endpoints in this group will be measurable within 1 year of supplementation. Vascular stiffness can be determined with different techniques. The vascular characteristics determined with Pulse Wave Velocity (PWV), ultrasound of the common carotid artery and accelerated plethysmography (APG) with a fingertip device will be compared in a follow-up study.