Biomedical subjects

B Fontana

Publications and source records attributed to B Fontana.

12 recordsLinked to original sources

PubMed1987

[Tiropramide chlorhydrate in premedication for endoscopic retrograde cholangiopancreatography and its effects on the motor activity of Oddi's sphincter].

The activity of tiropramide chlorhydrate in the pre-medication for the endoscopical examinations has been evaluated. In particular ERCP has been studied considering as parameters the timing of the different stages of the examination and the activity of Oddi's sphincter. At the end of endoscopy the pressure of the sphincterial region was measured a 3-way miniature catheter. Patients included in the study were divided into two different groups: group A treated with tiropramide chlorhydrate and diazepam vs group B treated only with diazepam. The group with patients pre-medicated with tiropramide chlorhydrate presented a significant reduction in the timing of the different stages of endoscopy. Endoscopy was better tolerated. Manometry showed an antispastic action of the drug without side effects. An important reduction of the degree and duration of the sphincterial phase activity, with a possible improvement of biliary defluxion into the duodenum, was observed.

Adult↗

PubMed1987

Size and structure of the bird genome. II. Repetitive DNA and sequence organization.

1. Highly repetitive, middle repetitive and single copy DNA were evaluated in 19 species of birds, belonging to nine orders, by means of a reassociation kinetics method. 2. A rather uniform pattern is present in all the species studied (single copy = 60-75%; middle repetitive = 13-20% and highly repetitive 10-20%). 3. Reassociation kinetics of fragments of different length confirms the presence of a long period interspersion pattern. 4. Among different orders, no significant differences are observed. 5. DNA sequence organization seems to be related to genome size, with an inverse correlation between DNA nuclear content and amount of interspersed repetitive sequences.

Animals↗

PubMed1986

Effects of pinaverium bromide in the premedication of endoscopic retrograde cholangio-pancreatography and on motor activity of the sphincter of Oddi.

A double-blind study was carried out in 18 patients with biliary and pancreatic disease to assess the use of pinaverium bromide in premedication for endoscopic retrograde cholangio-pancreatography and its effects on motor activity of the sphincter of Oddi. Patients were divided at random into three groups. One group received 100 mg pinaverium bromide twice daily for 3 days before and then 100 mg 1 hour before the examination, the second group received placebo, and the third had no medication. All patients received 10 to 20 mg diazepam intravenously 10 minutes before endoscopy. Assessments were made of the transit time of various endoscopic phases and patients' tolerance of the procedure. The effects of treatment on the sphincter of Oddi were estimated by means of endoscopic manometry. The results showed that pinaverium bromide allowed transit time reduction in endoscopic procedure, a greater tolerance on the part of the patient and marked reduction in the amplitude and duration of the phasic activity of the sphincter.

Adult↗

PubMed1979