Hypertension Biomarkers
Hypertension Biomarkers - Related Videos
08:29
Biomarkers in an Animal Model for Revealing Neural, Hematologic, and Behavioral Correlates of PTSD
0 Views •
Cited by 29 •
2012
We describe a rat model of post traumatic stress disorder (PTSD) that reveals the persistent alterations in neuroendocrine function and the delayed long-term, exaggerated fear response, characteristic of PTSD patients. The animal model and methods described here are useful for correlating biomarkers in brain nuclei, which are mechanistic but cannot be measured in patients, with biomarkers in peripheral white blood cells, which can.
09:40
Hemodynamic Characterization of Rodent Models of Pulmonary Arterial Hypertension
0 Views •
Cited by 35 •
2016
Pulmonary arterial hypertension (PAH) is a disease of pulmonary arterioles that leads to their obliteration and the development of right ventricular failure. Rodent models of PAH are critical in understanding the pathophysiology of PAH. Here we demonstrate hemodynamic characterization, with right heart catheterization and echocardiography, in the mouse and rat.
08:28
An Overview of bGDGT Biomarker Analysis for Paleoclimatology
0 Views •
2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst Throughout this series of videos, natural samples were extracted and purified in search of organic compounds, called biomarkers, that can relate information on climates and environments of the past. One of the samples analyzed was sediment. Sediments accumulate over geologic time in basins, depressions in the Earth into which sediment flows through the action of fluid (water or air), movement, and gravity. Two main types...
06:34
Laser-Induced Chronic Ocular Hypertension Model on SD Rats
0 Views •
Cited by 26 •
2007
Glaucoma is one of the major causes of blindness in the world. Elevated intraocular pressure is a major risk factor. Laser photocoagulation induced ocular hypertension is one of the well established animal models. This video demonstrates how to induce ocular hypertension by Argon laser photocoagulation in rat.
07:24
Sonication Extraction of Lipid Biomarkers from Sediment
0 Views •
2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst The material comprising the living "organic" share of any ecosystem (leaves, fungi, bark, tissue; Figure 1) differs fundamentally from the material of the non-living "inorganic" share (rocks and their constituent minerals, oxygen, water, metals). Organic material contains carbon linked to a series of other carbon and hydrogen molecules (Figure 2), which distinguishes it from inorganic material. Carbon's wide valency range...
FAQs
Renin and aldosterone measurements can provide clues about activation of the renin-angiotensin-aldosterone system, a process associated with blood-pressure elevation. Their value is not simply the presence of an abnormal result; these measurements can help clinicians investigate whether a secondary cause may be contributing, particularly when interpreted alongside blood-pressure findings and other clinical information.
Endothelial dysfunction and inflammation represent different biological processes that may accompany hypertension. Biomarkers reflecting these processes can broaden assessment beyond the pressure reading itself, while urinary albumin adds information about kidney involvement. Considering these signals together may help connect elevated pressure with vascular or organ effects rather than treating all cases as biologically identical.
Blood-pressure measurements quantify the clinical pressure finding, whereas biomarkers can indicate associated mechanisms or injury. This distinction makes them complementary rather than interchangeable. A biomarker panel may add information about renin-angiotensin-aldosterone activity, endothelial dysfunction, inflammation, or renal damage when pressure readings alone do not explain the broader clinical picture.
Assessment adds selected biological or physiological measures to repeated blood-pressure evaluation according to the clinical question. Possible measures include renin, aldosterone, natriuretic peptides, and urinary albumin. Because interpretation depends on clinical context and standardized testing, results should be considered as part of an organized assessment rather than treated as isolated diagnostic answers.
They are particularly useful when clinicians need to distinguish secondary hypertension, estimate cardiovascular or kidney risk, or investigate target-organ effects. The same measurement can therefore serve different purposes depending on the patient’s presentation. Using biomarkers in these settings extends assessment from the blood-pressure value to possible causes, risks, and consequences associated with the condition.
Panels can help group patients according to biological features or risk-related findings and can provide measures to follow during treatment. Their interpretation still requires clinical context, because a panel is not automatically informative simply because it contains several markers. Standardized testing is important for making comparisons meaningful when assessing risk or changes over time.