Serum gastrin concentration and changes in G and D cell densities in gastric antrum in children with chronic gastritis.

BACKGROUND: Elevated gastrin concentration leading to gastritis is explained as the effect of change in the density of D and G cells. The aim of the study was to determine and compare fasting serum gastrin concentrations, G and D cell densities in gastric antrum mucosa in children with chronic gastritis and in children with no gastritis or Helicobacter pylori infection. MATERIAL AND METHODS: A total of 184 patients aged 6-18 years, with chronic abdominal pain underwent endoscopic examination. We created three groups: I--patients with chronic gastritis and H. pylori infection; II--patients with chronic gastritis but no H. pylori infection; III--patients with neither gastric mucosal abnormalities nor H. pylori infection. G and D cell densities were determined in the biopsy specimens (using Rbalpha H Gastrin & Somatostatin antibodies). Fasting serum gastrin concentrations were measured using a Beckmann gamma-counter and a GASK-PR kit. RESULTS: The mean serum gastrin concentration in group I was higher when compared with group II (p = 0.04) and group III (p = 0.019). No statistically significant differences were found between groups II and III (p = 0.91). There were no statistically significant differences in G and D cell densities between groups. CONCLUSION: The mean G/D cell ratios in groups I and III were almost identical. The mean fasting serum gastrin concentration was higher in children with both chronic gastritis and H. pylori infection compared with patients without infection or without antral inflammation. No difference in the G cell density or D cell density in children was found, regardless of the presence or absence of gastritis or H. pylori infection.

[B Streptococcus and other pathogenic bacteria colonization in hospitals in the Gdansk Metro Area]. / Kolonizacja bakteryjna noworodków ze szczególnym uwzglednieniem paciorkowców grupy B.

A survey of group B Streptococcus and other pathogenic bacteria colonization was carried out on 658 neonates in 8 neonatal wards of hospitals in the Gdansk Metro Area and the district of Gdansk. Out of pathogenic bacteria Haemophilus and enteric bacteria the most frequently were isolated. The percentage of Staphylococcus aureus was relatively low (19.4). The group B Streptococcus frequency in throat was established as 3.8% and ranging from 1.7 to 8.8% in particular wards. In two cases group B streptococcus were not isolated. In probes taken from anus of newborn tested typical enteric flora dominated and E coli and Klebsiella sp were the most frequently encountered. Profile and frequency of bacterial colonization indicated that epidemiological situation in majority of particular wards in similar.