Spontaneously Hypertensive Rat
Spontaneously Hypertensive Rat - Related Videos
06:34
Laser-Induced Chronic Ocular Hypertension Model on SD Rats
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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.
02:21
Spontaneity
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2020
A spontaneous process is one that occurs naturally under certain conditions. A nonspontaneous process, on the other hand, will not take place unless it is “driven” by the continual input of energy from an external source. Processes have a natural tendency to occur in one direction under a given set of conditions. Water will naturally flow downhill (spontaneous process), but uphill flow (nonspontaneous process) requires outside intervention such as the use of a pump. Iron exposed to the earth’s...
09:23
Shunt Surgery, Right Heart Catheterization, and Vascular Morphometry in a Rat Model for Flow-induced Pulmonary Arterial Hypertension
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Cited by 15 •
2017
This protocol describes a surgical procedure to create a model for flow-induced pulmonary arterial hypertension (PAH) in rats and the procedures to analyze the principle hemodynamic and histological end-points in this model.
09:40
Hemodynamic Characterization of Rodent Models of Pulmonary Arterial Hypertension
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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.
08:50
5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat
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Cited by 30 •
2013
A two-stage method to establish chronic kidney disease (CKD) in the Lewis rat by surgically removing 5/6th of renal mass is described. Combination of the surgical procedure, NOS-inhibition and a high-salt diet leads to a model resembling human CKD, allowing study of causal mechanisms and development of novel therapeutic interventions.
FAQs
Elevated vascular resistance provides a physiological basis for examining how chronic hypertension changes cerebral blood flow and vascular reactivity. These vascular alterations can modify the environment in which neural tissue functions, allowing researchers to connect systemic blood-pressure abnormalities with neurovascular regulation and neural consequences. The model therefore supports studies that treat vascular control as an important contributor to brain dysfunction.
Normotensive controls help separate effects caused by high blood pressure from effects associated with genetic background or development. When the spontaneously hypertensive rat and a normotensive strain show different cerebral, behavioral, or neural outcomes, the comparison provides context for interpreting whether hypertension contributes to those findings. This design strengthens conclusions about blood-pressure-dependent brain changes.
Progressive hypertension can be examined in relation to altered cerebral blood flow, vascular reactivity, neural function, and blood-brain barrier dysfunction. Studying these features together helps researchers evaluate whether vascular abnormalities accompany broader brain injury rather than treating blood pressure as an isolated measurement. The resulting perspective is relevant to understanding how sustained hypertension may affect neural tissue over time.
Researchers use the model to examine how elevated blood pressure relates to the control of cerebral blood flow and the responsiveness of brain vessels. Comparisons with normotensive rats can reveal changes in neurovascular regulation that are associated with hypertension. This approach connects vascular physiology with neural function and helps identify mechanisms relevant to hypertension-related brain injury.
The model supports investigations of stroke susceptibility, blood-brain barrier dysfunction, cognition, and hypertension-related brain injury. These applications broaden the analysis from systemic hypertension to its functional and structural consequences in the nervous system. By examining several outcomes, researchers can study how vascular changes may relate to cognitive or neurological effects and evaluate potential therapeutic strategies.
Researchers can use comparisons involving spontaneously hypertensive and normotensive rats to assess whether a therapeutic strategy changes outcomes linked to hypertension. Relevant endpoints include cerebral blood flow, vascular reactivity, blood-brain barrier dysfunction, cognition, and brain injury. Such studies help determine whether an intervention addresses nervous-system consequences rather than only the presence of elevated blood pressure.