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A unique multiple diffusion growth chamber, an Ecologen, designed for the study of interactions among microorganisms, was introduced as a means of growing xenic cultures of Entamoeba gingivalis with Crithidia sp. or Yersinia enterocolitica. Entamoeba gingivalis was grown in the central diffusion reservoir of the Ecologen connected to separate growth(More)
We tested a health education intervention program to reduce passive smoking in infancy. The aim was to develop an instrument for study of tobacco smoke exposure and childhood respiratory illness. One hundred and eighty-four women who had smoked during pregnancy were allocated by month of delivery to an intervention group, to a minimal contact group, or to a(More)
Hereditary atypical hemolytic uremic syndrome (aHUS), a dramatic disease frequently leading to dialysis, is associated with germline mutations of the CFH, CD46, or CFI genes. After identification of the mutation in an affected aHUS patient, single-site gene testing of relatives is the preventive care perspective. However, clinical data for family(More)
A clinical survey of Entamoeba gingivalis was conducted in patients with advanced periodontal disease. A total of 100 specimens were taken from 10 patients (four females and six males) who were each sampled at 10 disto-facial random sites. The oral hygiene of the persons scored from good to fair to poor and very poor. The age of the test persons ranged from(More)
Aniline and 11 different chloroanilines were added to soil. No azo compound was formed from aniline, but all monochloro-and some dichloroanilines were transformed to their corresponding dichloro-and tetrachloroazobenzenes. Other dichloroanilines and the trichloroanilines were stable in soil. Peroxidase catalyzed the formation of azo compounds by some(More)
The adherence of Streptococcus mutans to smooth glass surfaces was studied in the presence of the artificial sweeteners, saccharin, acesulfame K and aspartame. The cells were grown aerobically in 2% yeast extract, 1% sucrose medium with artificial sweetener added in concentrations from 0.02 to 20.00 mg/ml. The artificial sweeteners tested reduced overall(More)
  • H A Linke
  • 1977
Sodium saccharin in concentrations from 0.02 to 20.00 m g/m l inhibits the in vitro growth of glucose-grown cariogenic and other streptococci, and suppresses, esp. at the higher concentration range, the ferm entative acid production of these m icroorganism s to acid levels much lower than the critical pH of 5.5. These observations indicate a possible caries(More)