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All Journal Folia Medica Indonesiana Dental Journal (Majalah Kedokteran Gigi)
Wahyu Setyarini
Institute of Tropical Disease, Universitas Airlangga, Surabaya
Dentistry Other

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The distribution of Streptococcus mutans and Streptococcus sobrinus in children with dental caries severity level Nur Dianawati; Wahyu Setyarini; Ira Widjiastuti; Rini Devijanti Ridwan; K. Kuntaman
Dental Journal (Majalah Kedokteran Gigi) Vol. 53 No. 1 (2020): March 2020
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v53.i1.p36-39

Abstract

Background: The prevalence of dental caries is high worldwide and specifically in Indonesia, especially in children. Cariogenic bacteria are the major cause of dental caries. Streptococcus mutans (S. mutans) is one of the bacteria often associated with caries, due to its ability in producing acid and forming the biofilm for bacterial colonisation on the surface of oral cavities. In addition to S. mutans, Streptococcus sobrinus (S. sobrinus) bacteria are also thought to play an important role in the process of caries. Purpose: This study aims to analyse the distribution of S. mutans and S. sobrinus in children with seriously high dental caries levels. Methods: This study was an observational analytical study. Bacterial isolation was conducted in carious lesions of 50 paediatric patients 6-12 years old with superficial dental caries. Samples of caries lesions were put directly into a tube containing the Brain Heart Infusion Broth (BHI-B) and incubated at 37o C for 24 hours. The samples were sub-cultured on selective tryptone yeast cystine sucrose bacitracin (TYCSBHimedia) agar, and then incubated for two days. Bacterial identification was then performed using the polymerase chain reaction (PCR) Multiplex method. Statistical analysis with Chi-square. Results: The total number of children with dental caries included in this study was 50. Among these, 94% showed positive for S. mutans and 30% positive for S. sobrinus. The analysis of the prevalence of bacterial colonisation (S. mutans and S. sobrinus) based on caries severity and the Simplified Oral Hygiene Index (OHI-S), showed there was no significant difference (p> 0.05). Conclusion: This study showed that among 50 caries noted in the children, 94% were colonised S. mutans and 30% S. sobrinus. There was no significant difference between the colonisation of S. mutans and S. sobrinus among children from the severe to mild decayed exfoliated filling teeth (DEFT) category, and between bad and good OHI-S.
Molecular Genotyping of Tsst-1 Gene Staphylococcus Aureus from Clinical Specimen Marinda Dwi Puspitarini; Wahyu Setyarini; Usman Hadi; Kuntaman Kuntaman
Folia Medica Indonesiana Vol. 57 No. 2 (2021): June
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.093 KB) | DOI: 10.20473/fmi.v57i2.17559

Abstract

Staphylococcus aureus (S. aureus) is the most common pathogen in humans that causes various infections. Variations in infections due to S. aureus are related to the presence of virulence factors, one of which is Toxic Shock Syndrome Toxin-1 (TSST-1) which is the main cause of Toxic Shock Syndrome (TSS). This study aimed to explore the genetic pattern of the tsst-1 genes among MSSA and MRSA from clinical isolates of patients at Dr. Soetomo Academic Hospital, Surabaya-Indonesia. PCR examination was performed on 106 clinical samples of S. aureus isolates to determine the presence of the tsst-1 genes; subsequently, phylogenetic analysis was performed. The positive tsst-1 genes were found in 3 (5.7%) MSSA isolates and 2 (3.8%) MRSA isolates from 106 samples, of which were divided into 53 MSSA isolates and 53 MRSA isolates. No significant difference was noticed between the tsst-1 genes on both the MSSA and MRSA bacteria (p = 0.648). The positive tsst-1 genes were found in 1 (4.5%) of pus specimens and 2 (16.7%) of blood specimens from MSSA isolates. However, the positive tsst-1 genes were found in neither sputum nor urine specimens. The genes were found in 2 (16.7%) of blood specimens from MRSA isolates. Based on the phylogenetic tree, Indonesian tsst-1 isolates belonged to the same clade as Japan, Iran, Iraq, India, Egypt and the United Kingdom isolates. The prevalence of tsst-1 genes of both MSSA and MRSA from clinical isolates in Dr. Soetomo Academic Hospital Surabaya are 5.7% and 3.8%, respectively. The tsst-1 genes of Surabaya-Indonesia, Japan, Iran, Iraq, India, Egypt and the United Kingdom belonged to the same clade.
Phylogenetic and Transmission Patterns of Extended-Spectrum β- Lactamase –Producing Escherichia Coli among Neonatal’s Gut Flora in Indonesia Rakhmatul Binti Sulistya; Kuntaman Kuntaman; Eko Budi Koendhori; Terza Aflika Happy; Wahyu Setyarini
Folia Medica Indonesiana Vol. 57 No. 3 (2021): September
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (476.223 KB) | DOI: 10.20473/fmi.v57i3.22828

Abstract

This study aimed to explore the phylogenetic pattern of Extended-spectrum β-lactamase-producing Escherichia coli in the gut flora of neonatal into groups A, B1, B2, D and tracing the presence of spreading among the age group of neonatal. Multiplex PCR was conducted to classify the phylogenetic group of ESBL producing E. coli into groups of commensals (A, B1) and pathogen (B2, D). The spread of bacterial agents among the host (neonatal) was conducted by the RAPD-PCR method with two random primers. Among 34 bacterial isolates were identified among early neonatal group A (22,2%), B1 (11,1%), B2 (22,2%) D (33,3%) and postneonatal groups A (8%), B1 (4%), B2 (36%) D (40%). It was not a statistically significant difference (p=0.388). The dominance of pathogenic groups B2 and D as many as 70,6%. From 34 samples was found 34 types of RAPD indicated there were not any bacterial spread among neonatal. The ESBL producing E. coli among early neonatal and postneonatal were dominated by the pathogenic group of B2 and D (total=70,6%), but they were not statistically significant. There was not any spreading of bacterial agents among individual gut flora of neonatal.
Co-Authors Eko Budi Koendhori, Eko Budi Ira Widjiastuti K. Kuntaman Kuntaman Kuntaman Kuntaman Kuntaman Marinda Dwi Puspitarini Nur Dianawati Rakhmatul Binti Sulistya Rini Devijanti Ridwan Terza Aflika Happy Usman Hadi