blockade

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blockade

 [blok-ād´]
1. in pharmacology, the blocking of the effect of a neurotransmitter or hormone by a drug.
2. in histochemistry, a chemical reaction that modifies certain chemical groups and blocks a specific staining method.
adrenergic blockade selective inhibition of the response to sympathetic impulses transmitted by epinephrine or norepinephrine at alpha or beta receptor sites of an effector organ or postganglionic adrenergic neuron. See also adrenergic blocking agent.
cholinergic blockade selective inhibition of cholinergic nerve impulses at autonomic ganglionic synapses, postganglionic parasympathetic effectors, or neuromuscular junctions. See also cholinergic blocking agent.
ganglionic blockade inhibition by drugs of nerve impulse transmission at autonomic ganglionic synapses; see also ganglionic blocking agent.
narcotic blockade inhibition of the euphoric effects of narcotic drugs by the use of other drugs, such as methadone, in the treatment of addiction.
neuromuscular blockade a failure in neuromuscular transmission that can be induced pharmacologically or result from any of various disturbances at the myoneural junction. See also neuromuscular blocking agent.
sympathetic blockade block of nerve impulse transmission between a preganglionic sympathetic fiber and the ganglion cell.

block·ade

(blok-ād'),
1. The occupation of receptors by an antagonist so that usual agonists are relatively ineffective.
2. Receptor blockade, blocking the effect of a hormone at the cell surface.
3. Arrest of nerve impulse conduction or transmission at autonomic synaptic junctions, autonomic receptor sites, or neuromuscular junctions by various means, most often pharmacotherapy.
4. Intravenous injection of large amounts of colloidal dyes or other substances to block reticuloendothelial cells (for example, phagocytosis is temporarily prevented).

block·ade

(blok-ād')
1. Isolation of an organ, tissue, or system from communication with orinfluence by external forces or events.
2. Receptor blockade, blocking the effect of a hormone at the cell surface.
3. Arrest of peripheral nerve conduction or transmission at autonomic synaptic junctions, autonomic receptor sites, or myoneural junctions by a drug.
4. The occupation of receptors by an antagonist so that usual agonists are relatively ineffective.

blockade

The use of a drug to occupy, seal, or otherwise render inoperative, a receptor for natural hormones or neurotransmitters.

Patient discussion about blockade

Q. what does a sun block cream do? and what are a UV rays?

A. It blocks out harmful Ultra violet rays from the skin as the previous entries have related; however it can also block your ability to produce vitamin D. If you live in a northerly area or one that receives limited sunlight, its recommended to get at least 15 minutes of sun a day (this is probably best done with minimal sunblock) and according to personnal sun sensitivity. Another thing to keep in mind is that sunblock works best if applied 20 minutes before sun exposure.

Q. my son is 5 and half yrs old.he is having veezing and 75%block in one nose because of adenod.is is curable he has taken steriods for one and half yrs but with not much relief for veezing. then we switched on to ayur medicines,where he had some pigmentation at some places in his body. so again we are back to allopathy. he has one nasal steriod spray now with few other medicines. in his last test, dr, said he has adenod about 75% blcok in one nose, he has prescribed medicines for one month. he has also said that a small surgery can be done to remove adenod. i would like to know how long this surgry wil take and how much of rest he wil have to take. and if this adenod is removed, wil his other problem like veezing be cured? indira rajesh

A. it's a pretty common surgery from what i remember. most of our family has any kind of nasal problem...sinusitis..adenoids...just name it. the surgery is entering through the mouth (under full sedation) and lasering/curetting - removed. it took about a week to recover , eating soft foods..and it worked!

More discussions about blockade
References in periodicals archive ?
For the young blockaders, the presence of the Elders validated their course of action, since Haida law teaches that young people must follow the wisdom of their Elders when it comes to the right way to interact with nature.
I hoped I could find a way to explain the Grassy Narrows blockaders' reasons for taking direct action in a way that non-Natives--academics and nonacademics alike--would find moving enough that they might be inclined, first of all, to find out what they could do to support Grassy Narrows and other Native communities facing similar challenges and, second, to examine their own role in perpetuating what many Anishinaabe people see as a colonial system that condones environmental racism.
With high enough stakes, a blockader might use the minimum force necessary to ensure compliance, but serious diplomatic repercussions could follow disabling fire directed against a foreign vessel (e.g., a Greek or Norwegian supertanker).
He did not clarify whether the army rejected his orders or whether it will actually act against the blockaders of oil ports any time soon.
Imphal, Oct 22 (ANI): A student rally organized under the banner of Sadar Hills Private Schools Association, Kangpokpi has urged the blockaders to reach an amicable solution with the government to end the stalemate.
Navy blockaders enjoyed greater success, Lord Lyons received more requests for assistance.
And today, you see the fact that a lot of Arab regimes give lip service to the Palestinian cause but then you see what the Egyptians are doing on the border with the help of the US army corp of engineers; obviously in their mind it's clear the Egyptian government has thrown in its walk on the side of the blockaders. So yes, there are certain themes that are repeated.
Officers said the music has proved very popular and we can only suggest that the fuel blockaders get similar relief with a trip down to The Sage Gateshead for a few verses of hey nonny-no.
Over 5,000 people came from across BC to support the Clayoquot Sound strategy, and more specifically the logging community, in an event billed as "Ucluelet Rendezvous '93." (118) In counter-protest to the blockade, "200 litres of human excrement were dumped by the logging blockaders' information site." (119) Many environmental supporters would argue that this was merely industry-backed protest.
The blockaders have five binders full of support letters from people throughout North America and the world.