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Previous case reports and the results of this study suggest a real link between beta-blockers and aphthous ulcers. Our study did not confirm a role of other drugs but a few interesting case reports with positive reintroduction have to be considered. These results could be beneficial for patients, as healing may occur when the incriminated drug is discontinued.

During the 15 years from January 1984 to December 1998 the Limoges University Hospital screened 22,859 pregnant patients for hepatitis B surface antigen (HBs Ag) and identified 149 positives. The overall prevalence (0.65%) was intermediate between prevalences observed among women of French origin (0.29%), French West Indies islands (5.68%) and of foreign origin particulary South East Asian origin (7.14%) and Sub Saharan African origin (6.52%). Hepatitis B Virus (HBV) replication markers was detected with relative low frequence (HBe Ag: 14.4%; HBV-DNA: 13.7-20%) among HBs Ag positive mothers. Markers of delta hepatitis virus was found among 10.5% of the HBs Ag carrier pregnant women. During the 15 years study period variations of the global prevalence were not statistically significant. Universal prenatal screening and infant immunisation could greatly contribute to the control of HBV infection if the polemic about the hepatitis B vaccination recently propagated in France will not have a negative effect on the acceptance and national programme of vaccination.

The study included 140 patients with Parkinson’s disease (PD) and 280 non-Parkinson age-matched controls to evaluate environmental risk factors associated with PD. The effect of exposure to environmental and dietary factors was determined using conditional logistic regression. This multivariate analysis showed that PD in first-degree relatives and tea drinking were the main risk factors for PD. Smoking appeared to be a protective factor. Exposure to toxic compounds was not a significant risk factor. Further research is needed to validate that tea consumption increases the risk of PD.

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