Steptococcus
Mostrando 1-7 de 7 artigos, teses e dissertações.
-
1. Cloning, expression and purification of proteins of surface, PsaA and fragments of PspA from Streptococcus pneumoniae / Clonagem, expressão e purificação das proteínas de superfície, PsaA e fragmentos de PspA de Streptococcus pneumoniae
Streptococcus pneumoniae is the main causative agent of bacterial pneumonia. The current vaccines available contain capsular polysaccharide conjugated or not with carrier proteins. However these are either too expensive or do not protect the high-risk groups. Surface proteins of S. pneumoniae, such as PsaA and PspA, are considered strong vaccine candidates.
Publicado em: 2005
-
2. EVALUATION IN VITRO OF POTENTIAL ANTIMICROBIALS OF HYPTIS PECTINATA AND COLUTORIES ON STEPTOCOCCUS MUTANS / AVALIAÇÃO in vitro DO POTENCIAL ANTIMICROBIANO DO ÓLEO ESSENCIAL DE Hyptis pectinata (L.) Poit. E DE COLUTÓRIOS SOBRE OS Streptococcus mutans
A odontologia moderna enfatiza a importância do controle do biofilme dental para melhorar a saúde oral. O uso na terapêutica odontológica de colutórios tem um papel crucial na redução do biofilme. A eficácia destas substâncias foi extensivamente avaliada em vários estudos. A pesquisa farmacológica de plantas medicinais é necessária diante de sua
Publicado em: 2005
-
3. AVALIAÇÃO in vitro DO POTENCIAL ANTIMICROBIANO DO ÓLEO ESSENCIAL DE Hyptis pectinata (L.) Poit. E DE COLUTÓRIOS SOBRE OS Streptococcus mutans / EVALUATION IN VITRO OF POTENTIAL ANTIMICROBIALS OF HYPTIS PECTINATA AND COLUTORIES ON STEPTOCOCCUS MUTANS
The modern dentistry emphasizes the importance of the control of the dental biofilm to improve the oral health. The use in the odontologic therapeutics rinses has a crucial paper in the reduction of the biofilm. The effectiveness of these substances was appraised extensively in several studies. The pharmacologic research of medicinal plants is necessary due
Publicado em: 2005
-
4. Effects of Dextranases on Attachment of Streptococcus mutans to Hydroxyapatite
A Fusarium dextranase and a Penicillium dextranase were compared for their relative ability to quantitatively reduce the adsorption of 3H-labeled Steptococcus mutans cells onto hydroxyapatite. Fusarium dextranase-treated hydroxyapatite disks caused a statistically significant decrease in the hydroxyapatite adsorption of both the OMZ 176 and NCTC 10449 strain
-
5. Characterization of extracellular glucosyltransferase activity of Steptococcus mutans.
The extracellular glycosyltransferase activity of Sterptococcus mutans GS-5 has been resolved into two non-overlapping fractions after gel filtration chromatography on Bio Gel A-15 columns. The activity eluting in the void volume, fraction A, was highly aggregated and synthesized both soluble and insoluble glucans. The activity retarded by the resin, fractio
-
6. Rapid differentiation of the major causative agents of bacterial meningitis by use of frequency-pulsed electron capture gas-liquid chromatography: analysis of amines.
The major causative agents of bacterial meningitis (Haemophilus influenzae serogroup B, Neisseria meningitidis serogroups B and C, Klebsiella pneumoniae, Steptococcus pneumoniae, and two types of Escherichia coli) were cultured in a chemically defined medium, and selected strains were further studied in Todd-Hewitt medium. After acidic extraction of the spen
-
7. Relationship Between the Concentration of Bacteria in Saliva and the Colonization of Teeth in Humans
The relationship between the salivary concentration of bacteria and their number that can be recovered from tooth surfaces has been studied in 12 human subjects. The mean salivary concentration of naturally occurring Steptococcus mutans and lactobacilli, determined on selective media, was 3.7 × 105 and 3.8 × 105 colony-forming units (CFU) per ml, respectiv