Adrenaline and Noradrenaline???

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Adrenaline and Noradrenaline???

Post by biocupid » Mon Jun 18, 2007 7:01 am

I am wondering how can the human hormones,adrenaline and noradrenaline increase the blood glucose level?Pls explain in details.
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Post by Poison » Mon Jun 18, 2007 1:03 pm

They are stress hormones. Prepares the organism for the 'fight or flight' reaction. What does your body needs to think, decide or run away? The answer is glucose. Isn't it?
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Post by david23 » Mon Jun 18, 2007 8:46 pm

I forgot the exact pathways, but look up gluconeogenesis, and the hormones involved. Adrendaline should be one of them. Correct me if I am wrong, no one really remembers these pathways anymore.

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Post by biocupid » Tue Jun 19, 2007 6:36 am

but how can stress hormone increases the level of glucose?
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Post by david23 » Tue Jun 19, 2007 10:18 am

Grrrrrr thats what gluconeogenesis does.

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Post by dark_angel » Tue Jun 19, 2007 11:03 am

Adrenaline stimulates glicogenolysis and inhibates insulin secretion.

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Post by biocupid » Tue Jun 19, 2007 2:16 pm

can u pls explain to me what is glycogenolysis or glyconeogenesis? i am getting confused...
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Post by dark_angel » Tue Jun 19, 2007 8:02 pm

Glycogen is a polysaccharide of glucose (used to store glucose in the liver and muscle cells). Glycogenolysis is the catabolism of glycogen which takes place in the liver and leads to glucose. Glucose then is released in the blood so it incerases blood sugar levels.

Gluconeogenesis is the process of generating glucose from non-sugar (lipids and amino acids).

Both of these processes increase blood glucose level.

To answer your first question: Adrenaline and Noradrenaline not only stimulate these two proceses but it also inhibates insulin secretion. Insulin is the hormon that is responsible of decreasing blood glucose level.

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Post by biocupid » Wed Jun 20, 2007 9:16 am

Thks.......................
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