chain

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chain

 [chān]
a collection of objects linked together in linear fashion, or end to end, as the assemblage of atoms or radicals in a chemical compound, or an assemblage of individual bacterial cells.
branched chain an open chain of atoms, usually carbon, with one or more side chains attached to it.
closed chain several atoms linked together so as to form a ring, which may be saturated, as in cyclopentane, or aromatic, as in benzene.
H chain (heavy chain) any of the large polypeptide chains of five classes that, paired with the L or light chains, make up the antibody molecule of an immunoglobulin; heavy chains bear the antigenic determinants that differentiate the classes of immunoglobulins. See also heavy chain disease.
J chain a polypeptide occurring in polymeric IgM and IgA molecules.
L chain (light chain) either of the two small polypeptide chains (molecular weight 22,000) that, when linked to H or heavy chains by disulfide bonds, make up the antibody molecule of an immunoglobulin monomer; they are of two types, kappa and lambda, which are unrelated to immunoglobulin class differences.
open chain a series of atoms united in a straight line; components of this series are related to methane.
chain reaction a chemical reaction that is self-propagating; each time a free radical is destroyed a new one is formed.
side chain a group of atoms attached to a larger chain or to a ring.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

chain

(chān),
1. chemistry a series of atoms held together by one or more covalent bonds.
See also: sympathetic trunk.
2. bacteriology a linear arrangement of living cells that have divided in one plane and remain attached to each other.
See also: sympathetic trunk.
3. A series of reactions.
See also: sympathetic trunk.
4. In anatomy, a linked series of structures, for example, ossicular chain, chain ganglia , under ganglion.
See also: sympathetic trunk.
[L. catena]
Farlex Partner Medical Dictionary © Farlex 2012

CHAIN

Abbreviation for:
Contact, Help, Advice, and Information Network (Medspeak-UK)
Contrast Hierarchical Alignment and Interaction Network
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

chain

(chān)
1. chemistry A series of atoms held together by one or more covalent bonds.
2. bacteriology A linear arrangement of living cells that have divided in one plane and remain attached to each other.
3. A series of reactions.
4. anatomy A linked series of structures, e.g., ossicular chain, chain ganglia.
See also: sympathetic trunk
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

chain

(chān)
bacteriology a linear arrangement of living cells that have divided in one plane and remain attached to each other.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Schutte et al., "The link between vascular deterioration and branched chain amino acids in a population with high glycated haemoglobin: the SABPA study," Amino Acids, vol.
The panel authored this assessment of unsaturated branched chain alcohols when used as fragrance ingredients.
Key words: ergogenic aids, hydroxymethylbutyrate, branched chain amino acids, creatine, carnitine, glutamine, sport nutrition, exercise
It will be obvious from the foregoing that there are no clear boundaries between these three recognized classes of petroleum wax, and that a continuous spectrum exists, ranging from the lowest melting point simplest paraffin wax of almost 100% alkane content to the somewhat higher melting point and vastly more complex microcrystalline wax containing almost 100% branched chain iso alkane or `non normal' high molecular weight hydrocarbons.
[ClickPress, Wed Jun 12 2019] The rise in the overall health supplements market is also indirectly leading to the growth of the branched chain amino acid supplements market.
The supplement also includes a variety of branched chain amino acids and enzymes, medium chain triglycerides, prebiotic fiber, resveratrol, green tea extract, CoQlO, grape seed extract, as well as essential vitamins and minerals.
Branched chain amino acids are novel biomarkers for discrimination of metabolic wellness.
Out of these 29 positive cases, 17 were generalized aminoacidurias, 1 were branched chain aminoaciduria, and two cases of methylmalonic aciduria, and one cases each of tyrosinuria and phenylketonuria.
These proteins are rich in branched chain amino acids & arginine which help in maintaining the blood sugar levels as well as curb hunger.
Hydrovon 195 is rich in branched chain amino acids (BCAA's) for post-work out lean muscle maintenance and accelerated muscle recovery and repair.
Searching for CR-mimetics, scientists recently investigated the life span effects of a balanced amino acid mixture high in the branched chain amino acids found in whey.
The branched chain amino acids (BCAAs) may have special utilization in weight loss programs combining exercise with diet.