0000000000369069
AUTHOR
A. G. Press
Gastric emptying of indigestible tablets in relation to composition and time of ingestion of meals studied by metal detector.
Enteric-coated tablets leave the stomach mainly during the interdigestive phase. Composition as well as time of ingestion of meals may influence their gastric emptying considerably. In 12 normal volunteers gastric emptying of a plastic tablet with a metal core was followed by a metal detector in relation to different compositions and various times of ingestion of meals. With an empty stomach and after ingestion of 250 ml water, the mean time for gastric emptying of the tablet was 38 +/- 11 min (mean +/- SEM) and 38 +/- 8 min. Two hundred fifty milliliters of milk (652 kJ) and a formula diet (1000 kJ) delayed gastric emptying time to 128 +/- 14 and 152 +/- 6 min, respectively (P less than 0.…
Influence of Senna, Fibre, and Fibre + Senna on Colonic Transit in Loperamide-induced Constipation
Retarded colonic transit and disturbed defecation are the most prominent pathophysiological mechanisms in constipation. Both may be influenced by bulking agents and by laxatives such as senna. Direct measurements of the influence of such substances on colonic transit are rare mainly because of technical problems. We measured gastric emptying, small and large intestinal transit in 24 healthy volunteers by a newly developed method employing a metal detector. Twelve persons taking a normal diet received loperamide in a dose sufficient to double the individual transit time. All subjects measured gastrointestinal transit time under normal conditions and with Sennatin containing purified sennosid…
Antibodies to cytoskeletal proteins in patients with Crohn's disease
. The immunologic basis of inflammatory bowel disease has been the focus of interest of a series of studies on Crohn's disease and the process of immune sensitization at the gastrointestinal mucosal level is functionally poorly understood. To date only few contradictory reports concerning the incidence of autoantibodies in patients with this disease exist. The aim of this study was to investigate the sera drawn from 60 patients suffering from biopsy-proven Crohn's disease to evaluate the prevalence of autoantibodies against nuclear antigens and cytoskeletal proteins. Using standard methods, no anti-nuclear antibodies or antibodies to extractable nuclear antigens could be detected. All sera …
Einfluß der Nahrungsaufnahme auf die Magenentleerung magensaftresistenter Tabletten und Kapseln*
To test the effect of food intake on gastric emptying of gastric juice-resistant drugs, emptying time of a 11 x 6 mm tablet and a 20 x 7 mm capsule was measured by means of a metal detector in 10 healthy persons (5 men and 5 women; mean age 25 [18-30] years) after fasting and after eating three main and three in-between meals. After fasting the tablets left the stomach after 78 +/- 18 min, the capsules after 60 +/- 16 min, while meal intake delayed emptying by a factor of 10 to 12 +/- 1.3 hours and 10 +/- 1.8 hours, respectively. The slightly shorter emptying time of capsules was statistically not significant. The results indicate that gastric juice-resistant tablets taken during day-time m…
Effect of loperamide on jejunal electrolyte and water transport, prostaglandin E 2-induced secretion and intestinal transit time in man
Jejunal perfusion was performed in 12 healthy volunteers to evaluate the dose dependent effects of loperamide on intestinal absorption, stimulated secretion and transit. In 6 volunteers intestinal perfusion of the jejunal segment with isotonic NaCl solution was followed by addition of loperamide in increasing doses (2–8 mg·l−1). The volunteers were pretreated with 1 mg·l−1 prostaglandin E2 (PgE2) in the perfusate before addition of 4 mg·l−1 loperamide. Phenolsulphonphtalein (PSP) boluses (2 ml) were given to measure mean transit time (MTT). Loperamide 2 mg·l−1 converted the minor secretion after perfusion with the standard solution (water −1.45 ml·min−1, Na −0.09 and Cl −0.04 mmol·min−1) to…
Effect of lactose, lactulose and bisacodyl on gastrointestinal transit studied by metal detector.
SUMMARY Aim and methods: To study the effect of 45 g lactose, 30 g lactulose and 10 mg bisacodyl on gastrointestinal transit in 30 healthy volunteers by metal detector and Hinton marker method. The first set of measurements were performed under standard conditions. In a second stage, transit was slowed to twice the original value by loperamide to simulate constipation conditions. Results: Bisacodyl drastically accelerated small and large intestinal transit. Colonic transit was shortened to 23 % and to 31% of control values, without and with loperamide. Bisacodyl increased stool weight and decreased stool consistency in all persons. Lactulose marginally shortened small intestinal transit (P=…
Azathioprine combined with prednisolone or monotherapy with prednisolone in active Crohn's disease
Abstract Background: The role of azathioprine (AZA) in the treatment of active Crohn's disease (CD) is still controversial. This study examined whether AZA combined with standard prednisolone therapy improved the therapeutic outcome compared with monotherapy with prednisolone. Methods: Forty-two patients with a Crohn's Disease Activity Index (CDAI) of > 150 were randomized into two groups. Both received 60 mg of prednisolone daily in a tapering regimen to a maintenance dose of 10 mg. In addition, group 1 received 2.5 mg AZA/kg body wt and group 2 received a placebo over the whole study period of 4 months. Results: At the end of the trial, 16 of 21 patients (76%) in group 1 were in remission…