gag

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gag

 [gag]
1. a surgical device fitting between the upper and lower jaws to prevent the mouth from closing during operative procedures of the mouth or throat.
2. to retch, or strive to vomit; see also gag reflex.

GAG

Abbreviation for glycosaminoglycan.

gag

(gag),
1. To retch; to cause to retch or heave.
2. To prevent from talking.
3. An instrument adjusted between the teeth to keep the mouth from closing during operations in the mouth or throat.

gag

(gag)
1. a surgical device for holding the mouth open.
2. to retch, or to strive to vomit.

GAG

abbr.
glycosaminoglycan

gag

(găg)
n.
1. A device placed in the mouth to keep it open, as in dentistry.
2. The act or an instance of gagging or choking.
v. gagged, gagging, gags
v.tr.
1. To cause to choke, retch, or undergo a regurgitative spasm.
2. To keep (the mouth) open by using a dental gag.
v.intr.
To experience a regurgitative spasm in the throat, as from revulsion to a food or smell or in reflexive response to an introduced object.

gag

Etymology: ME, gaggen, to strangle
1 n, a dental device for holding the jaws open during oral surgery or dental restoration. Also called mouth prop or bite block.
2 v, to retch or attempt to vomit.

gag

Sexology
A device that may be worn during bondage and BDSM role-play, which prevents the wearer—who is generally the submissive partner—from speaking. Usually gags are combined with physical restraints, which enhances the wearer’s sense of helplessness.

HIV-1 gene

Any of the genes present in the human immunodeficiency virus. See AIDS.
HIV genes
art/trs gene rev gene, see there.
env gene Encodes viral coat proteins gp 120 and gp 41, which mediate CD4 binding and membrane fusion, controlled by tat and rev
gag gene Encodes nucleocapsid core proteins including p24
nef gene 3´ orf, B gene, ORF-2 gene Encodes a protein of unknown function found in infected Pts that may down-regulate viral expression–nef deletion results in a five-fold increase in viral DNA synthesis and replication
pol gene Encodes reverse transcriptase, protease, integrase and ribonuclease
R gene Encodes TAR–transcription activating response element, which has a nonspecific immunodeficiency effect
rev gene art/trs gene Encodes a 19 kD post-transcriptional protein regulator required for HIV replication, up-regulating HIV synthesis by transactivating anti-repression, ↑ levels of envelope RNA by regulating the env gene; inactivation of rev prevents viral replication–as measured by the successful production of the p24 glycoprotein by infected monocytes can be massively ↑ by adding cytokines to culture medium
tat gene Encodes a potent 14 kD transcription activator that amplifies HIV replication, the inactivation prevents viral replication
vif gene Facilitates infectivity of free HIV
vpr gene Encodes a weak transcription activator
vpu gene Unique to HIV-1, encodes a 16 kD product which, when mutated, has a 5-10-fold Ø in replicative capacity and is critical for efficient budding of virions NEJM 1991; 324:308rv
†Gene encoding regulatory protein
‡Gene encoding structural protein

gag

(gag)
1. To retch; to cause to retch or heave.
2. To prevent from talking.
3. An instrument adjusted between the teeth to keep the mouth from closing during operations in the mouth or throat.

gag

1. A viral gene necessary for viral replication.
2. A device used by dental and other surgeons to keep the mouth wide open and allow oral treatment.

GAG

Abbreviation for glycosaminoglycan.

gag

(gag)
1. Device put in someone's mouth to prevent speech or closing of the mouth.
2. To retch; to cause to retch.

gag,

n a surgical device for holding the oral cavity open.
gag reflex,
n a normal neural reflex elicited by touching the soft palate or posterior pharynx; the response is a symmetric elevation of the palate, a retraction of the tongue, and a contraction of the pharyngeal muscles. It is used as a test of the integrity of the vagus and glossopharyngeal nerves.

gag

1. a surgical device for holding the mouth open. See also mouth speculum.
2. to retch, or strive to vomit.

mouth gag (1)
gag (2) reflex
elevation of the soft palate and retching elicited by touching the back of the tongue or the wall of the pharynx; called also pharyngeal reflex.

Patient discussion about gag

Q. Does GAG really help? My mother suffers from osteoarthritis, and after taking a lot of pain-killers someone offered us to try glycosaminoglycans. Does it really help? It’s quite expensive….

A. As far as I know it wasn’t proved in well-controlled trials to benefit the patients over placebo, so if it’s a consideration for you, I’m not sure it justifies the price. However, I’m only a lay-man, so consulting a professional (i.e. a doctor) is better.

More discussions about gag