Book (English)

Knyga

Dievo šokis

Kaip gyventi

Išsiaiškinimai

Malda

Andrius

Užrašai

Mokykla

Juodraštis? FFFFFF

Užrašai EEEEEE

Klausimai FFFFC0

Gvildenimai CAE7FA

Pavyzdžiai? ECD9EC

Šaltiniai? EFCFE1

Duomenys? FFE6E6

Išsiaiškinimai D8F1D8

Pratimai? FF9999

Dievas man? FFECC0

Pavaizdavimai? E6E6FF

Istorija AAAAAA


Asmeniškai? BA9696

Mieli dalyviai! Visa mano kūryba ir kartu visi šie puslapiai yra visuomenės turtas, kuriuo visi kviečiami laisvai naudotis, dalintis, visaip perkurti. - Andrius

Įranga

redaguoti

Žr. Sveikata, Elgesys, Rūkymas

Nikotinas, C10H14N2

Kiekis

  • e-cigaretėse mažiau kaip rūkant
  • rūkant cigarus, pypkes, dūmai neįtraukiami, įtraukiama mažiau nikotino kaip rūkant cigaretes, Armitage, A. K.; Turner (1970). "Absorption of Nicotine in Cigarette and Cigar Smoke through the Oral Mucosa". Nature 226 (5252): 1231–1232. Bibcode 1970Natur.226.1231A. DOI:10.1038/2261231a0. PMID 5422597
  • Chewing tobacco, dipping tobacco, snus ir snuff - kūnui daugiau nikotinu suteikia negu rūkymas.
  • Menthol prailgina nikotino išlikimą kūne, Benowitz NL, Herrera B, Jacob P 3rd., NL; Herrera, B; Jacob P, 3rd (2004). "Mentholated Cigarette Smoking Inhibits Nicotine Metabolism". J Pharmacol Exp Ther 310 (3): 1208–15. DOI:10.1124/jpet.104.066902. PMID 15084646.

http://en.wikipedia.org/wiki/Nicotine

Priklausomybė

Research suggests that, when smokers wish to achieve a stimulating effect, they take short quick puffs, which produce a low level of blood nicotine.[52] This stimulates nerve transmission. When they wish to relax, they take deep puffs, which produce a high level of blood nicotine, which depresses the passage of nerve impulses, producing a mild sedative effect. At low doses, nicotine potently enhances the actions of norepinephrine and dopamine in the brain, causing a drug effect typical of those of psychostimulants. At higher doses, nicotine enhances the effect of serotonin and opiate activity, producing a calming, pain-killing effect. Nicotine is unique in comparison to most drugs, as its profile changes from stimulant to sedative/pain killer in increasing dosages and use.

Technically, nicotine is not significantly addictive, as nicotine administered alone does not produce significant reinforcing properties.[53] However, after coadministration with an MAOI, such as those found in tobacco, nicotine produces significant behavioral sensitization, a measure of addiction potential.

Nikotinas


Naujausi pakeitimai


Puslapis paskutinį kartą pakeistas 2012 liepos 18 d., 15:03
Tweet