Exhaled nitric oxide decreases in association with attendance at an asthma summer cAMP.

Attendance at a summer asthma camp has been associated with improved outcomes in children with asthma. We hypothesized that one mechanism involved in improved asthma outcomes is reduction in airway inflammation. To investigate this, we measured the fractional concentration of exhaled nitric oxide (FeNO), lung function (forced expiratory volume in 1 sec, FEV(1)) and asthma control (Juniper Asthma Control Questionnaire, ACQ) from children at the beginning and end of a 1-week asthma summer camp.

Chemoprevention of azoxymethane-induced colonic carcinogenesis by supplemental dietary ursodeoxycholic acid.

The present studies were conducted at the Universities of Chicago and Arizona to examine and compare the effects of supplemental dietary ursodeoxycholic acid to cholic acid, a known tumor promoter, and to piroxicam, a known chemopreventive agent, in the azoxymethane (AOM) model of experimental colonic carcinogenesis. Male Fischer 344 rats were utilized in these experiments. All animals were fed a basal diet (AIN-76) supplemented with 0.

Hemobilia: computed tomographic diagnosis.

A case of postbiopsy hemobilia is presented in which computed tomographic (CT) scanning showed blood within the gallbladder appearing as high-density material measuring 67-91 HU. Residual clots were seen by CT and ultrasound 8 days after the acute episode. These findings were confirmed by serial CT scans in two monkeys in whom blood was experimentally injected into the gallbladder.