Calcitriol: Function & 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

Alfacalcidol

Products Alfacalcidol is commercially available in Germany in the form of soft capsules, drops, and as a solution for injection (e.g., EinsAlpha). It is not registered in many countries. Structure and properties Alfacalcidol (C27H44O2, Mr = 400.6 g/mol) corresponds to 1-hydroxycholecalciferol. It is in the form of white crystals and is practically insoluble in water. … Alfacalcidol

Calcifediol

Products Calcifediol was approved in the United States in 2016 and in many countries in 2020 in extended-release capsule form (Rayaldee). Structure and properties Calcifediol (C27H44O2, Mr = 400.6 g/mol) is a hydroxylated derivative of vitamin D3 (cholecalciferol). It is 25-hydroxycholecalciferol or 25-hydroxyvitamin D3. Calcifediol is present in the drug as calcifediol monohydrate, a white … Calcifediol

Testosterone

Synonyms sex hormone, androgen, androstane, sex hormones Introduction Testosterone is a derivative of the sex hormone (androgen). Testosterone occurs in both sexes, but differs in concentration and effect. Tesotosterone is derived from testis (testicle) and steroid. The “inventor” of testosterone was Ernst Lageur, who was the first to extract bull testicles. In men, testosterone is … Testosterone

Side effects | Testosterone

Side effects Among the most frequently observed side effects, especially in the form of overdose abuse are the following: Liver Diseases Kidney damage Cardiac arrhythmias Diseases of the cardiovascular system Arteriosclerosis Gynecomastia (butt formation in men) Steroid acne see: Acne Mental illnesses like depression Poorer memory performance Decrease in sperm count Reduction of the testicles … Side effects | Testosterone

Vitamins Role in the Body

Products Vitamins are commercially available in the form of pharmaceuticals, dietary supplements, medical devices, cosmetics, and foods, among others. Available dosage forms include, for example, tablets, effervescent tablets, syrups, direct granules and injectables. Vitamins are also combined with other active ingredients and, in particular, with minerals and trace elements in a fixed manner. The name … Vitamins Role in the Body

Serotonin

Introduction Serotonin (5-hydroxytryptamine) is a tissue hormone and a neurotransmitter (transmitter of nerve cells). Definition Serotonin is a hormone and neurotransmitter, i.e. messenger substance of the nervous system. Its biochemical name is 5-hydroxy-tryptophan, which means that serotonin is a derivative, i.e. derivative of the amino acid tryptophan. The effect of a hormone and neurotransmitter always … Serotonin

Serotonin Syndrome | Serotonin

Serotonin Syndrome Serotonin can be administered in small doses as a medication if someone is suffering from depression, for example. However, if the approved daily dose that can be taken is exceeded or if serotonin can no longer be broken down correctly or completely, it accumulates in the body and triggers the serotonin syndrome. Syndrome … Serotonin Syndrome | Serotonin

Serotonin vs. dopamine | Serotonin

Serotonin vs. dopamine Dopamine is another neurotransmitter of the brain. It is found in the basal ganglia and the limbic system, where it is involved in thought and perception processes and plays an important role in controlling movement.On the one hand, serotonin and dopamine are active as neurotransmitters, in different areas of the brain with … Serotonin vs. dopamine | Serotonin