Medications

Acetylcholine: A key chemical in neurons (nerve cells) that acts as a neurotransmitter and carries information across the synaptic cleft, the space between two nerve cells. Abbreviated ACh. Last Editorial Review: 4/27/2011 5:27:15 PM Neuron: A ne...

Acetyl phosphate - Medical

Acetyl phosphate: A molecular ion which plays a role in the synthesis of the four-carbon fatty acid, butyric acid. The formula for acetyl phosphate is: CH3COPO42-.Last Editorial Review: 4/14/2004 Synthesis: Putting together different entities to ...

Hyperimmune Egg

What other names is Hyperimmune Egg known by? Egcel, Egg Albumen, Egg Extract, Egg Powder with Immune Components, HEY, Hyperimmune Egg Powder, Hyperimmune Hen Egg, Hyperimmun Oeuf, Hyperimmunized Egg Yolk, IgY, Immune Egg, Immunoglobulin Egg Extract...

Acetyl coenzyme A - Medical

Acetyl coenzyme A: An important metabolic intermediate, derived from various pathways, such as glycolysis, fatty acid oxidation, and degradation of some amino acids. It also represents a key intermediate in lipid biosynthesis. Commonly referred to as...

Acetyl CoA - Medical

Acetyl CoA: See: Acetyl coenzyme A. Last Editorial Review: 4/13/2004 Acetyl coenzyme A: An important metabolic intermediate, derived from various pathways, such as glycolysis, fatty acid oxidation, and degradation of some amino acids. It also repre...

Hydroxymethylbutyrate (Hmb)

What other names is Hydroxymethylbutyrate (hmb) known by? Beta-hydroxy-beta-methylbutyrate, B-Hydroxy B-Methylbutyrate Monohydreate, Beta-Hydroxy-Beta-Methylbutyric Acid, Calcium B-Hydroxy B-Methylbutyrate Monohydrate, Calcium HMB, Hidroximetilbutir...

Acetone - Medical

Acetone: In the body, a chemical that is formed when the body uses fat instead of glucose (sugar) for energy. The formation of acetone means that cells lack insulin or cannot effectively use available insulin to burn glucose for energy. Acetone...

Hydrazine Sulfate

What other names is Hydrazine Sulfate known by? Sehydrin, Sulfate d'Hydrazine, Sulfato de Hidracina. What is Hydrazine Sulfate? Hydrazine sulfate is a chemical used in industry. Some people use it as medicine. Possibly Ineffective for... Colon a...

Acetoacetate - Medical

Acetoacetate: A molecular ion, CH3COCH2COO-, derived from acetoacetic acid. Last Editorial Review: 4/14/2004...

Acetic acid - Medical

Acetic acid: The acid most commonly associated with vinegar. Acetic acid is a two-carbon carboxylic acid. Its formula is: CH3COOH. It is the most commercially important organic acid and is used in the manufacture of a broad range of chemical products...

Hydrangea

What other names is Hydrangea known by? Hortensia, Hydrangea arborscens, Mountain Hydrangea, Seven Barks, Smooth Hydrangea, Viburnum alnifolium, Viburnum americanum, Wild Hydrangea. What is Hydrangea? Hydrangea is a plant. The root and rhizome (un...

Acetate - Medical

Acetate: A molecular ion derived from acetic acid. The formula of acetate is CH3COO-.Last Editorial Review: 4/14/2004 Acetic acid: The acid most commonly associated with vinegar. Acetic acid is a two-carbon carboxylic acid. Its formula is: CH3COOH. ...

Acetaminophen - Medical

Acetaminophen: A pain reliever and fever reducer. Brand name: Tylenol. The exact mechanism of action of acetaminophen is not known. Acetaminophen relieves pain by elevating the pain threshold (that is, by requiring a greater amount of pain to develop...

Acetabulum - Medical

Acetabulum: The cup-shaped socket of the hip joint. In fact, in Latin an "acetabulum" is cup, a vinegar cup. The acetabulum is a feature of the pelvis. The head (upper end) of the femur (the thighbone) fits into the acetabulum and articulates w...

Hyaluronic Acid

What other names is Hyaluronic Acid known by? Acide Hyaluronique, Ácido Hialurónico, Glycoaminoglycan, Hyaluran, Hyaluronan, Hyaluronate Sodium, Hylan, Sodium Hyaluronate. What is Hyaluronic Acid? Hyaluronic acid is a substance that is ...

Acetabular labrum - Medical

Acetabular labrum: A ring of fibrocartilage (fibrous cartilage) that runs around the acetabulum (cup) of the hip joint and increases its depth. The head of the femur (the bone in the thigh) fits in the acetabulum. The labrum deepens this cavity and ...

Acetabular - Medical

Acetabular: Pertaining to the acetabulum, the cup-shaped socket of the hip joint which is a key feature of the pelvis. The head (upper end) of the femur (the thighbone) fits into the acetabulum and articulates with it, forming a ball-and-sock...

Aceruloplasminemia - Medical

Aceruloplasminemia: A genetic disorder in which there is absence of the protein ceruloplasmin from blood and accumulation of iron in the pancreas, liver and brain, causing diabetes and progressive neurodegeneration with the tremors and gait abnormali...

Huperzine A

What other names is Huperzine A known by? HupA, Huperzina A, Huperzine, Huperzine A, Selagine. What is Huperzine A? Huperzine A is a substance purified from a plant called Chinese club moss. People use it as medicine. Be careful not to confuse hup...

Acentric chromosome - Medical

Acentric chromosome: A fragment of a chromosome (one of the microscopically visible carriers of the genetic material DNA) that is lacking a centromere (the "waist" of the chromosome essential for the division and the retention of the chromoso...

Humic Acid

What other names is Humic Acid known by? Acide Humique, Extrait d'Humique, Humate, Humic Extract. What is Humic Acid? Humic acid is a chemical produced by decaying plants. People use it to make medicine. Insufficient Evidence to Rate Effectivenes...

Acellular vaccine - Medical

Acellular vaccine: A vaccine that may contain cellular material but does not contain complete cells. Last Editorial Review: 11/15/2001 6:55:00 AM Cell: The basic structural and functional unit in people and all living things. Each cell is a small...

Acellular - Medical

Acellular: Not made up of cells or divided into cells. Or lacking intact cells as, for example, an acellular vaccine which may contain cellular material but not complete cells. Last Editorial Review: 11/15/2001 6:56:00 AM Cell: The basic structura...

Hu Zhang

What other names is Hu Zhang known by? Fallopia Japonica, Fleece Flower, Giant Knotweed, He Shou Wu, Hu Zhang Extract, Hu Zhang Root, Itadori, Japanese Bamboo, Japanese Knotweed, Japanese Knotwood, Mexican Bamboo, PCWE, Polygoni Multiflora, Polygonu...

ACEI - Medical

ACEI: ACE inhibitor.Last Editorial Review: 11/13/2004 ACE inhibitors: A drug that inhibits ACE (angiotensin converting enzyme) which is important to the formation of angiotensin II. Angiotensin II causes arteries in the body to constrict and t...

ACE2 (angiotensin converting enzyme 2) - Medical

ACE2 (angiotensin converting enzyme 2): An essential regulator of heart function. Also may be involved in the embryonic development of the heart. The ACE2 gene has been mapped to the X chromosome (band Xp22). Last Editorial Review: 9/28/2003...

Houseleek

What other names is Houseleek known by? Aaron's Rod, Ayegreen, Ayron, Bullock's Eye, Hens and Chickens, Joubarbe, Jupiter's Beard, Jupiter's Eye, Liveforever, Sempervivum tectorum, Sengreen, Siempreviva Mayor, Thor's Beard, Thunder Plant. What is H...

ACE inhibitors - Medical

ACE inhibitors: A drug that inhibits ACE (angiotensin converting enzyme) which is important to the formation of angiotensin II. Angiotensin II causes arteries in the body to constrict and thereby raises the blood pressure. ACE inhibitors lower ...

Hound's Tongue

What other names is Hound's Tongue known by? Cynoglossi Herba, Cynoglossi Radix, Cynoglossum Officinale, Dog-Bur, Dog's Tongue, Gypsy Flower, Hounds Tongue, Langue de Chien, Sheep-Lice, Woolmat. What is Hound's Tongue? Hound's tongue is a plant. P...

ACE (angiotensin converting enzyme) - Medical

ACE (angiotensin converting enzyme): The angiotensins are peptides (substances smaller than proteins) that act as vasoconstricting agents (causing blood vessels to narrow). Narrowing the diameter of the blood vessels sends up the blood press...