[A scientometric analysis of leukoplakia and erythroplakia].

Background: The oral leukoplakia and erythroplakia is one of the most common epithelial precursor lesions of the oral squamous cell carcinoma. Transformation rates are approximately 0.9-17% in 10 years for leukoplakia and in 14-50% for the erythroplakia.

Mobile Air Quality Studies (MAQS)-an international project.

Due to an increasing awareness of the potential hazardousness of air pollutants, new laws, rules and guidelines have recently been implemented globally. In this respect, numerous studies have addressed traffic-related exposure to particulate matter using stationary technology so far. By contrast, only few studies used the advanced technology of mobile exposure analysis.

[Leukoplakia and erythroplakia--two orale precursor lesions].

The oral leukoplakia/erythroplakia is one of the most common epithelial precursor lesions of the oral squamous cell carcinoma. A clinical distinction is drawn between homogeneous and non-homogeneous as well as proliferative verrucous leukoplakia and erythroplakia. Due to the fact that the oral squamous cell carcinoma has a poor prognosis it is very important to decrease morbidity and mortality by systematic primary, secondary and tertiary prevention of the oral leukoplakia/erythroplakia.

Angiotensin metabolites can stimulate receptors of the Mas-related genes family.

The Mas protooncogene encodes a G protein-coupled receptor, we identified, also by using the specific angiotensin-(1-7) antagonist A-779, to be associated with intracellular signaling of the angiotensin (Ang) II metabolite Ang-(1-7). Recently, Mas-related genes (Mrg) have been identified coding for the Mrg-receptor family. All family members share high sequence homology to Mas.