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All Journal Jurnal Kedokteran Gigi Universitas Padjadjaran Padjadjaran Journal of Dentistry Padjadjaran Journal of Dental Researchers and Students Jurnal of Syiah Kuala Dentistry Society
Hening Tjaturina Pramesti
Fakultas Kedokteran Gigi Universitas Padjadjaran
Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Streptococcus sanguinis as an opportunistic bacteria in human oral cavity: Adherence, colonization, and invasion Pramesti, Hening Tjaturina
Padjadjaran Journal of Dentistry Vol 28, No 1 (2016): March 2016
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1368.125 KB) | DOI: 10.24198/pjd.vol28no1.13515

Abstract

Streptococcus sanguinis (formerly S. sanguis) is a Gram-positive, facultative anaerobe,  nonmotile , normal  inhabitant of the human oral cavity, and  a member of  the viridans group of streptococci. Among the streptococcus, S. sanguinis is a  primary colonizer in the human tooth surface or it is recognize as a ‘pioneer’ by forming dental plaque. The aim of this paper is to review the role of Streptococcus sanguinis  in the adherence to and  invasion of  human tissues.  S. sanguinis  has been reported  that it is associated  with healthy  tooth  surfaces  but not with caries. S. sanguinis  tend to involved in an interspecies interactions with Streptococcus mutans, which is known as  competition/coexistence within dental biofilm.  In their colonization, this bacteria used enzyme sortase A (SrtA) to cleave  LPXTG-containing proteins sequence and  anchored  the  cell wall, while virulence factors  in infective endocarditis  involved housekeeping functions such as cell wall synthesis, amino acid and nucleic acid synthesis, and the ability to survive under anaerobic conditions.
Contaminant bacteria in traditional-packed honey Pramesti, Hening Tjaturina; Hardjawinata, Karlina; Fath, Putra Qadri
Padjadjaran Journal of Dentistry Vol 19, No 1 (2007): March 2007
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1365.208 KB) | DOI: 10.24198/pjd.vol19no1.14172

Abstract

Honey may be contaminated by microorganisms during its harvesting, processing, and packaging. Honey selected for clinical purposes must safe, sterile, and contain antimicrobial activity, so it must be evaluated using laboratory testing. The aim of this descriptive laboratory study was to isolate and identify the bacterial contaminant in the traditional-packed honey dealing with the use of honey for medical purposes. the colony forming units of honey sample cultured on blood agar were counted using Stuart bacterial colony counter. The suspected bacterial colonies were isolated and identified based on cultural morphology characteristics. The isolates of suspected bacterial colonies were stained according to Gram and Klein method and then were examined by the biochemical reaction. The results showed that there were two contaminant bacteria. Gram-positive cocci which were presumptively identified as coagulase-negative Staphylococci and gram-positive rods which were presumptively identified as Bacillus subtilis. In conclusion, the contaminant bacteria were regarded as low pathogen bacteria. The subtilin enzyme of B subtilis may cause an allergic reaction and coagulase-negative Staphylococci, Staphylococcus epidermidis is also an opportunist pathogen. Inevitably, for medical purposes, traditional-packed honey must be well filtered, water content above 18%, and standardized sterilization without loss of an antibacterial activity or change in properties.
Co-Authors Alia Intan Kusuma Ramadhani Amatul Firdaustia PRATIWI Anisauma UTAMANİNGYAS Erry Mochamad Arief, Erry Mochamad Faisal Kuswandani Felisha Febriane BALAFIF Garinanda, Yasmine Aliyah Karlina Hardjawinata, Karlina Meirina Gartika Putra Qadri Fath, Putra Qadri Putri, Aliati Silvi Kintawati Sinta Dwi ARDIYANTINI Sri Tjahajawati Tadeus Arufan Yasrin, Tadeus Arufan Warta Dewi Winny Yohana, Winny