Ukurasa 1 kutoka 22 matokeo
OBJECTIVE
To determine in vitro susceptibility of Porphyromonas gingivalis, P salivosa and P circumdentaria to seven antimicrobial agents by agar dilution and Epsilometer test methods and to assess the effectiveness of these antimicrobial agents in reducing the numbers of each Porphyromonas spp in
Very limited molecular epidemiological data are available on the role of Actinomyces spp. in the pathogenesis of caries in the primary dentition. Therefore, we investigated their distribution in supragingival plaque of ethnic Chinese preschool children from Singapore and Hong Kong, either with or
Checkerboard DNA-DNA hybridization (CKB) is a technique that provides a simultaneous quantitative analysis of 40 microbial species against up to 28 mixed microbiota samples on a single membrane; using digoxigenin (DIG)-labeled, whole-genome DNA probes. Developed initially to study the predominantly
Recrudescent herpes labialis (RHL) is a disease caused by herpes simplex virus (HSV), predominantly type 1 (HSV-1). We have monitored HSV-1 shedding in the oral cavity by polymerase chain reaction (PCR) and enzyme-linked immunosorbent assays (ELISA) using digoxigenin-labeled primers designed to
A dot-blot hybridisation assay using isolated high molecular weight DNA as whole chromosomal probes of the cat pigmented asaccharolytic Bacteroides/Porphyromonas species was used against both purified high molecular weight DNA and DNA released on membranes from whole cells for the identification of
A dot-blot hybridisation assay using high molecular weight DNA as whole chromosomal probes was used to differentiate Bacteroides tectum from Bacteroides fragilis. 32P-labelled probes were compared with digoxigenin (DIG)-labelled probes. The whole chromosomal probes were specific--differentiating B.
A minimal topological difference (MTD) approach is made to describe quantitative structure-activity relationships (QSAR) for the Na+, K+-ATPase inhibitory activity of cardiotonic steroids. The calculations take into account 20 derivatives of digitoxigenin, digoxigenin, and gitoxigenin with small
Cellular DNA from 25 Actinomyces naeslundii and Actinomyces viscosus strains belonging to the 7 taxonomic clusters of Fillery et al. (1978) and several unclustered strains was obtained by enzymatic and N-lauroylsarcosine/guanidine isothiocyanate treatment of whole cells, followed by extraction of
OBJECTIVE
The poor sensitivity of phenotypic identification techniques has hampered the taxonomic differentiation of Actinomyces. Hence we developed a sensitive and specific, PCR-based oligonucleotide-DNA hybridization technique to detect Actinomyces spp. and, used this method to detect these
Temporal and spatial distribution of a gene encoding murine bone morphogenetic protein 4 (mBMP-4) during fracture repair were investigated in mice by RT-PCR and in situ hybridization. For in situ hybridization, fractured ribs and surrounding tissues were decalcified and hybridized with a
Human herpesvirus 8 (HHV-8) is a new virus which has been reported in Kaposi's sarcoma and some lymphoproliferative disorders such as Castleman's disease and body-cavity-based lymphoma. Because HHV-8 shares homology with Epstein-Barr virus (EBV), we searched for the presence of HHV-8 DNA sequences
OBJECTIVE
The traditional, biochemical and enzymatic methods of identifying Actinomyces species are frequently confounded by the similar phenotypic characteristics shared by the different members of this genus. Therefore, we developed novel species-specific oligonucleotide probes to accurately
Human fetal parietal cortical tissue was transplanted to cortical cavities in immunosuppressed rats. Protoplasmic astrocytes in the human cortical grafts highly expressed human angiotensinogen mRNA as identified with 35S-labeled and digoxigenin-labeled riboprobes combined with immunohistochemistry
Normal transverse growth of long bones is by periosteal appositional bone formation, balanced by endosteal resorption. Changes in the distribution of cells that are expressing collagen mRNAs during growth were determined using digoxigenin-labelled riboprobes. In neonatal rabbit tibiae osteoblasts
Archival oral tissues comprising 51 squamous cell carcinomas, 18 non-malignant lesions and 7 normal mucosa samples were investigated for human herpesvirus-6 (HHV-6)-encoded antigens and HHV-6 DNA. The virus-specific antigens were detected by an immunohistochemical method using monoclonal antibodies.