An ion channel is a tansmembrane protein that forms a pore in the membrane and allows ions to pass through it. Ions are electrically charged particles; they can be postitive but also negatively charged. They are in constant exchange between the cell and its environment or another neighboring cell. What is an ion channel? The … Ion Channel: Function & Diseases
Levodopa is a prescription medication used to treat disorders of the central nervous system. The active ingredient is L-dopa, the precursor of a neurotransmitter that can cross the blood–brain barrier to reach the site of the disease. Parkinson’s disease is among the most common conditions for therapy with levodopa. What is levodopa? Parkinson’s disease is … Levodopa: Effects, Uses & Risks
Products Serotonin itself is not commercially available as a drug, but numerous agents interfere with serotonin metabolism. Structure and properties Serotonin (C10H12N2O, Mr = 176.2 g/mol) is a tryptamine (5-hydroxytryptamine) hydroxylated at position 5.
Rods are the retinal photoreceptors responsible for light-sensitive monochromatic night vision and peripheral vision. The main concentration of rods is outside the yellow spot (fovea centralis) located centrally on the retina, which is mainly populated with three different types of cones for color and sharp vision during the day and in bright twilight. What are … Rods: Structure, Function & Diseases
Frey syndrome is the term used to describe abnormal sweating that is triggered in the face and neck area during the consumption of food or by various stimuli such as chewing or tasting. What is Frey syndrome? Frey syndrome (Gustatory sweating, Auriculotemporal syndrome) is a very pronounced sweating in the neck and head area that … Frey Syndrome: Causes, Symptoms & Treatment
Almost everyone has experienced it themselves: you sit in a long meeting or attend a lecture, and slowly your eyes fall shut and you nod off. Even a certain sleepiness after a sumptuous lunch, the so-called soup coma, is nothing out of the ordinary. However, if sleep often overtakes you completely unprepared and uncontrollably during … Narcolepsy (Sleeping Sickness)
Narcolepsy symptoms are usually differentiated based on four different main symptoms. These four main narcolepsy symptoms are also named as symptom complex or narcoleptic tetrad. These four symptoms of narcolepsy are sleep compulsions, cataplexies, abnormal sleep patterns, and sleep paralysis. Narcolepsy symptom #1: sleep compulsion. Sleeping sickness (popularly known as compulsive slumbering) is often initially … Symptoms of Narcolepsy
Nerve fibers are structures in the nervous system that arise from the cell body of neurons as thin, elongated projections. They act as a kind of conduit by transmitting electrical impulses and enabling interconnectedness between neurons. In this way, information can be processed in the nervous system and commands can be sent to the receiving … Nerve Fiber: Structure, Function & Diseases
Glutamine is a non-essential proteinogenic amino acid. It plays a central role in the organism in all metabolic processes and in building proteins. Glutamine is most abundant in the free pool of amino acids. What is glutamine? Glutamine represents a non-essential amino acid, which contains an acid amide group in addition to the amino group … Glutamine: Function & Diseases
A triptan is a drug used to treat cluster headaches and migraines. Triptans are particularly well suited to control moderate to severe migraine attacks. What is triptan? A triptan is a drug used to treat cluster headaches and migraines. Triptans belong to the group of migraine medications and are administered for acute migraines as well … Triptan: Effects, Uses & Risks
Fluphenazine is an active ingredient that has been used successfully as a neuroleptic in human medicine since the 1960s due to its properties. Fluphenazine is indicated for psychotic syndromes with delusions and hallucinations, diagnosed schizophrenia, and psychomotor agitation states, among other conditions. What is fluphenazine? The medical drug fluphenazine was approved in the Federal Republic … Fluphenazine: Effects, Uses & Risks
What is that? /Definition Acetylcholine is one of the most important neurotransmitters both in humans and in many other organisms. In fact, acetylcholine already occurs in unicellular organisms and is considered to be a very old substance in the history of development. At the same time, it is the longest known neurotransmitter (it was first … Acetylcholine
