In general, we divide our lives into waking and sleeping phases. While we can consciously control the phases of activity in the waking state, this is not readily possible in the sleep phase. The brain controls with a multitude of hormones and messenger substances those processes that switch the body active and inactive and keep … Basic Rest-Activity Cycle: Function, Tasks, Role & Diseases
Carotid stenosis is the narrowing of the carotid artery, which supplies oxygen and nutrients to the brain. The condition is caused by deposits in the artery. Carotid stenosis is one of the most common causes of stroke. What is carotid stenosis? Smoking and little exercise are huge contributors to stroke. Carotid stenosis is a narrowing … Carotid Artery Stenosis: Causes, Symptoms & Treatment
Symptoms Drug-induced prolongation of the QT interval can rarely lead to severe arrhythmias. This is polymorphic ventricular tachycardia, known as torsade de pointes arrhythmia. It can be seen on the ECG as a wave-like structure. Due to the dysfunction, the heart cannot maintain blood pressure and can only pump insufficient blood and oxygen to the … Prolongation of the QT Interval
Decongestants are drugs that exert a decongestant effect and are used as supportive agents in the treatment of allergic diseases. They are not a uniform group of active substances. The individual substances act according to different mechanisms but with the same result of mucosal decongestion in each case. What are decongestants? Decongestants are drugs that … Decongestants: Effect, Uses & Risks
Intermittent fasting or interval fasting is a new trend among dietary habits and diets. This article aims to shed light on what intermittent fasting is, how it works and what it brings to the human organism. What is interval fasting? The word “intermittere” comes from Latin and means to suspend or interrupt. As the name … Intermittent Fasting: Treatment, Effects & Risks
Bilirubin is a breakdown product in hemoglobin metabolism. Macrophages continuously break down old erythrocytes in the liver and spleen to generate bilirubin. If this process is disturbed, the substance accumulates and jaundice develops. What is bilirubin? Bilirubin is the breakdown product of red blood pigment. This pigment is also known as hemoglobin. Red blood cells … Bilirubin: Structure, Function & Diseases
Common buckthorn belongs to the nightshade family and is classified in the genus buckthorn. The original home of this plant is China, where it is widely used as a medicinal plant. Its fruit is known as goji berry. Occurrence and cultivation of the common buckthorn. Also known as common buckthorn, common devil’s twine or Chinese … Common Buckthorn: Applications, Treatments, Health Benefits
When a noticeable amount of blood is gathered in any part of the body and redness with swelling develops, it is called hyperemia. Often, a blood vessel has dilated due to irritation, an insect bite, or inflammation. Hyperemia can also be produced artificially. What is hyperemia? The definition of hyperemia is consequently: As opposed to … Hyperemia: Causes, Symptoms & Treatment
The contractility of the heart is the force with which the heart contracts and causes blood to move. It depends on several factors and can be influenced by medications. What is the force of contraction? The contractile force of the heart is the force with which the heart contracts and causes blood to move. A … Contractile Force: Function, Tasks, Role & Diseases
Calcitriol is a very potent secosteroid that resembles steroid hormones because of its structure. It is hydroxylated in a wide variety of tissues, but predominantly in the kidneys, and is sometimes prescribed as a medication. What is calcitriol? Unlike other vitamins, vitamin D can be produced in the body itself. Deficiency symptoms only occur when … Calcitriol: Function & Diseases
Products Dexmedetomidine is commercially available as a concentrate for the preparation of an infusion solution (Dexdor). It was approved in many countries in 2012. Structure and properties Dexmedetomidine (C13H16N2, Mr = 200.3 g/mol) is an imidazole derivative and the -enantiomer of medetomidine. It is structurally closely related to detomidine and is present in drugs as … Dexmedetomidine
Heart transplantation is the transplantation of organs from a donor to a recipient. What is heart transplantation? In a heart transplant, the still-active heart of a donor is implanted in a recipient. In a heart transplant, a donor’s still-active heart is implanted in a recipient. A heart transplant is mainly necessary in cases of heart … Heart Transplantation: Treatment, Effects & Risks
