Nonsurgical treatment of a Class III malocclusion with maxillary skeletal retrusion using rapid maxillary expansion and reverse pull headgear.
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Adolescent↗
Biomedical subjects
S S Law
Publications and source records attributed to S S Law.
Diagnostic exercise. A radiopaque entity.
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Aged↗
Differentiation of sugar assimilation characteristics and colony phenotypes in pathogenic and commensal oral candidal isolates.
A comparison of sugar assimilation patterns has been made using 72 oral candidal isolates recovered from diseased and non-diseased patients. Significant differences were demonstrated between isolates recovered from diseased versus healthy mouths. In addition, significant changes in colony phenotype (switch frequency and morphologic predominance) were found to relate to predictive data generated from carbon source utilization data. These results suggest that biochemical properties and colony phenotypic characteristics may hold promise in predicting the behavior of oral candidal isolates in disease.
Adolescent↗
Transport of L-proline and its regulation in Leishmania tropica promastigotes.
Leishmania tropica promastigotes transport L-proline through an active uptake system that has saturation kinetics, temperature dependence, a requirement for metabolic energy and transport against a concentration gradient. In experiments lasting 10 min, less than 10% of the proline transported is incorporated into macromolecules. The remainder is largely unaltered proline with an intracellular concentration nearly 60 times that in the reaction mixture. The uptake system has a relatively broad specificty; it is competitively inhibited by D-proline as well as by alanine, methionine, valine, azetidine-2-carboxylate, thioproline, 3,4-dehydropoline, hydroxyproline and alpha-aminoisobutyric acid. Pre-established intracellular proline pools exchange with external proline as well as compounds that compete with it for uptake. Evidence is presented that feedback inhibition and transinhibition may regulate proline uptake in this organism.
Amino Acids↗