RESUMEN
This study was carried out to investigate the frequency of E. gingivalis in the gingival crevices of patients with periodontitis compared to normal subjects. Flagyl therapy was tried in cases with periodontitis. Also the frequency of this amoeba was investigated in patients receiving chemotherapy to be compared to normal subjects. The results revealed that higher frequency was observed in patients with periodontitis and flagyl therapy reduced this frequency. Cases under chemotherapy showed higher frequency than the normal control. Histopathological sections from the gingiva of periodontitis patients did not show any amoeba invading the tissue.
Asunto(s)
Entamoeba/aislamiento & purificación , Entamebiasis/complicaciones , Encía/parasitología , Neoplasias/tratamiento farmacológico , Periodontitis/complicaciones , Adulto , Animales , Entamebiasis/tratamiento farmacológico , Humanos , Metronidazol/uso terapéutico , Neoplasias/complicacionesRESUMEN
Hexosediphosphatase (D-fructose-1,6-bisphosphate 1-phosphohydrolase, EC 3.1.3.11) has been isolated, purified, and crystallized, from previously isolated spinach chloroplasts. The effects of various anions, cations, and sulfhydryl compounds were tested, and activation by Mg2+, glycine, HCO3-, and sulfhydryl compounds is described. The purified enzyme is very specific for fructose 1,6-diphosphate and does not attack sedoheptulose-1,7-bisphosphate. The S20 value of the enzyme was 7.7, from which the molecular weight of the enzyme was estimated as 140,000.