Lappuse 1 no 267 rezultātiem
Ulcerative colitis (UC) is characterized by impairment of the epithelial barrier and the formation of ulcer-type lesions, which result in local leaks and generalized alterations of mucosal tight junctions. Ultimately, this results in increased basal permeability. Although disruption of the
Ulcerative colitis is one of the few diseases in which smoking appears to confer some benefit (1). We report a patient whose ulcerative colitis deteriorated on several occasions on stopping cigarettes, and improved on restarting smoking. As a result, she continued smoking despite developing airflow
Previous reports have suggested that there may be a protective effect of active cigarette smoking on the risk of ulcerative colitis. Because passive smoking may also have other health consequences, the authors examined the effect of exposure to environmental tobacco smoke during childhood on adult
Our goal was to determine the effect of transdermal nicotine on cytokine and mucin gene transcription in ulcerative colitis (UC). Sixty-four nonsmoking patients with active UC were randomly assigned to transdermal nicotine (maximum dose 22 mg/day) or placebo for 4 weeks. Clinical assessment and
BACKGROUND
Distal ulcerative colitis usually responds to treatment with rectal mesalamine, but the management of refractory cases is poorly defined.
OBJECTIVE
To evaluate the possible therapeutic benefit of transdermal nicotine versus oral mesalamine.
METHODS
Thirty patients with left-sided
BACKGROUND
Ulcerative colitis is predominantly a disease of non-smokers, and transdermal nicotine is therapeutic but often results in side-effects. Administration of nicotine as a liquid rectal enema results in less systemic nicotine absorption.
OBJECTIVE
To determine the safety and clinical
Smoking has a dichotomous effect on inflammatory bowel disease, ameliorating disease activity in ulcerative colitis but having a deleterious effect on Crohn's disease. This effect is thought to be due to nicotine. We investigated the effect of chronic nicotine administration on the small and large
BACKGROUND
Ulcerative colitis (UC) is a common and difficult-to-treat disease. In non-smokers the relative risk of developing UC is 2.9 compared with smokers, who tend to have a later onset and a milder disease. Nicotine is the component of cigarette smoke responsible for the favorable effects in
Epidemiological evidence suggests that ulcerative colitis is a disease of nonsmokers, while Crohn's disease is a disease of smokers. The relative risk of developing ulcerative colitis is not only greater in nonsmokers, in addition there appears to be a rebound effect in smokers who quit, with the
BACKGROUND
Smoking increases plasma fibrinogen and cardiovascular risk whereas transdermal nicotine may not. Fibrinogen is an acute phase protein and may reflect disease activity in ulcerative colitis.
OBJECTIVE
To examine the effect of topical nicotine on plasma fibrinogen and any relationship
BACKGROUND
Since transdermal nicotine is of value in the treatment of active ulcerative colitis but is often associated with side-effects, an alternative in the form of topical therapy with nicotine enemas has been developed.
METHODS
In an open study, 22 patients with active colitis, all
The etiology of ulcerative colitis (UC) remains unknown, although the risk of developing UC is apparently higher in non-smokers and ex-smokers. We have demonstrated in a colitis animal model that exposure to tobacco smoke could attenuate UC pathogenesis. The present study aimed to investigate and
BACKGROUND
Transdermal nicotine is of value in active ulcerative colitis but causes adverse events because of systemic absorption. Nicotine enemas may give rise to fewer adverse events.
OBJECTIVE
To assess the pharmacokinetics of nicotine enemas in three doses.
METHODS
Thirteen volunteers, all
Nicotine is protective in ulcerative colitis but not Crohn's disease of the small intestine, but little is known about the effects of nicotine on Clostridium difficile toxin A-induced enteritis. Isolated ileal or colonic segments in anesthetized rats were pretreated with nicotine bitartrate or other
BACKGROUND
Smoking has a detrimental effect in Crohn's disease (CD), but this may be due to factors in smoking other than nicotine. Given that transdermal nicotine benefits ulcerative colitis (UC), and there is a considerable overlap in the treatment of UC and CD, the possible beneficial effect of