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Biochemival Characterization of an Antibactrial Glycoprotein from Achatina fulica ferussac Snail Mucus Local Isolate and Their Implication on Bacterial Dental Infection Berniyanti, Titiek; Waskito, Edy Bagus; s, Suwarno
Indonesian Journal of Biotechnology Vol 12, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Snails crawl over a variety of potentially contaminated surfaces and their foot is the primary site of entry forpathogens, parasites and a range of opportunistic organisms, so it is a little wonder that they must have a defensivesystem to protect them. The mucus secreted on the body surfaces of mollusks is known to play crucial role inlocomotion, feeding, osmoregulation, reproduction and protection of epithelial surfaces. The snail mucus alsocontains Glycoaminoglycans (GAGs) which are complex polysaccharides that participate in the regulation ofphysiological processes through the interactions with a wide variety of proteins. GAGs, such as heparin, serve as keyto biological response modifiers, in example for acting asa a target for pathogen and parasitic factors for attachment,invasion, and immune system.For years, it has been known that the mucus secretions from snails Achatina fulica ferussac local isolate can be usedas a medication, and even empirically it is used to treat infected teeth tahat is suffered by people in rural area. Theantibacterial factor was surveyed in the aqueous extract and the mucin fraction of snail Achatina fulica ferussac, andthey exhibited positive antibacterial for Gram-positive, Escherichia coli and Gram negative, Streptococcus mutans. Inthe following study, it has been proved that an antibacterial content in the mucus was a Glycoprotein. It wascomposed of two subunits of Molecular Weight (MW) 71-73 kDa. The GelCode Glycoprotein Staining Kit detectedglycoprotein sugar moieties in polyacrylamide gel and on nitrocellulose membrane, while the glycoproteincarbohydrate estimation kit detected glycoprotein and estimated carbohydrate content. The glycoprotein contentwas 4.537 ± 0.876 for carbohydrate and 6.420 ± 1.242 for protein.Keywords : characterization, glycoprotein, Achatina fullica Ferussac snail mucus, galur Jawa, antibacterialfactor
The effect of gender differences on dentist’s performance (a study in health centers in East Java) Berniyanti, Titiek; Sudiyono, Kromodiharjo
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 4 (2007): (December 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i4.p165-169

Abstract

Gender is a social relationship concept that differentiates role and function between man and women. Equality of rights and obligations between man and woman have been normatively guaranteed and the Constitution does not explicitly discriminate the rights and obligations of woman in law and government, in occupation and decent life, in politics, in religion and beliefs, and in national defend. Related with gender perspective, the need of health worker especially dentist worker has to be determined and planned properly. The productivity is one of the factor on dentist worker, that affect on the quality of health delivary. Some companies try to increase efficiency in performing their activities and try to measure activities they do. In this case, time & motion study method is one of the solutions to help the company measuring their activity. Using these techniques, company can measure the productivity of resources used for every activity. In order to get better performance in cost reduction, the company should assign their cost to the product resulted. Determination of the Standart time to work is one of the method that contain high value of efeciency to gain the productivity. The aim of this study was to learn how gender has an effect on dentist’s work performance. The time of completing dentist’s task i.e: teeth extraction were measured and the standard time were determined. In addition the patient’s respond were measured through questionair. This study was conducted in East Java. The conclusion of this study revealed that there was no difference of work performance between male and female dentist’s.
Side effects of mercury in dental amalgam Berniyanti, Titiek; Hariyani, Ninuk
Dental Journal (Majalah Kedokteran Gigi) Vol 41, No 1 (2008): (March 2008)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v41.i1.p30-34

Abstract

Dental amalgam is an alloy composed of mixture of approximately equal parts of elemental liquid mercury and an alloy powder. The popularity of amalgam arises from excellent long term performance, ease of use and low cost. Despite the popularity of dental amalgam as restorative material, there have been concerns regarding the potential adverse health and environmental effects arising from exposure to mercury in amalgam. They have long been believed to be of little significance as contributors to the overall body burden of mercury, because the elemental form of mercury is rapidly consumed in the setting reaction of the restoration. In 1997, 80% of dentist in Indonesia still using amalgam as an alternative material, and 60% of them treat the rest of unused amalgam carelessly. In recent years, the possible environmental and health impact caused by certain routines in dental practice has attracted attention among regulators. As part of point source reduction strategies, the discharge of mercury/amalgam-contaminated wastes has been regulated in a number of countries, even though it has been documented that by adopting appropriate mercury hygiene measures, the impact of amalgam use in dentistry is minimal. The purpose of this paper is to examine on studies that relate mercury levels in human to the presence of dental amalgams. It is concluded that even though mercury used in filling is hazardous, if normal occupational recommendations for proper mercury hygiene routines and source of reduction strategies are followed, no occupational health risk can be assumed.
Apoptosis of Rattus novergicus gingival fibroblasts caused by silver nano-particles gel exposure Widowati, Kharinna; Berniyanti, Titiek; Rahayu, Retno Pudji
Dental Journal (Majalah Kedokteran Gigi) Vol 48, No 3 (2015): (September 2015)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v48.i3.p135-138

Abstract

Background: The use of silver nanoparticle are growing, especially in medical science. It’s used in many concentration. In dentistry, it’s used to decrease halitosis, periodontal diseases, and wound healing. It can affect the viability of the cells, give bad effects to the human’s health and environment if used in a long duration and in certain concentration. Purpose: The purpose of this study was to learn the apoptosis of gingival fibroblasts in Rattus novergicus which is exposed with 15 µg/ml silver nano-particle gel by the expression of caspase-3. Method: This study used 9 male wistar rats and were divided into 3 groups. Sample in group A were cut (hurt) in the oral gingiva and exposed to Ag-Np gel 15 µg/ml for 3 days. After 3 days, they were sacrificed and cut the gingival fibroblasts off 3x4 cm size with scalpel. Samples in group B were cut in the oral gingiva and exposed to Ag-Np Gel 15 µg/ml for 5 days. After 5 days they were sacrificed and the gingival fibroblasts off 3 x 4 cm with a scalpel. Samples in group C were cut in the oral gingiva and exposed to none for 3 days then cut the gingival fibroblasts off 3 x 4 cm size with scalpel. The expressions of caspase-3 in the apoptotic and wound healing process were analyzed by Immunohistochemical test. This data was analyzed by using the t-test method. Result: Mean expression numbers of caspase-3 in the group A=5.67; group B=11.33; and group C (control)=18.67. T-test sign.number of group A and C=0.009; group B & C=0.000. Conclusion: The exposure of 15 µg/ml silver gel nanoparticle to gingival fibroblasts of Rattus novergicus reduces the expressions of caspase-3 in the day-3 and day-5 post exposure. The amounts of cell death through the apoptotic pathway which were analyzed by the expressions of caspase-3 will decrease too.
The correlation between the use of personal protective equipment and level wild-type p53 of dental technicians in Surabaya Rohmaniar, Puspa Dila; Berniyanti, Titiek; Rahayu, Retno Pudji
Dental Journal (Majalah Kedokteran Gigi) Vol 50, No 1 (2017): (March 2017)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v50.i1.p19-22

Abstract

Background: Exposure of metals among dental technicians that come from the working environment can lead to the formation reactive oxygen species (ROS). ROS can cause mutations in the p53 gene (p53). The mutation is transversion mutation GuanineThymine. p53 mutations can lead to low expression of the wild-type p53 protein (p53). Wild-type p53 involved in many biological processes such as regulation of genes involved in cell cycle, cell growth after DNA damage, and apoptosis. However, exposure to metals among dental technicians can be prevented through the use of personal protective equipment (PPE) during work. Purpose: The purpose of this study was to analyze the correlation between the use of personal protective equipment to wild-type p53 protein levels among dental technicians in Surabaya. Method: This study was observational analytic with cross sectional approach. 40 samples were taken by random sampling. Data were retrieved through interviews and observations. Wild-type p53 was analyzed from saliva with indirect ELISA method. Analysis of data used Kolmogorov Smirnov normality test and a Pearson correlation test. Value significance was p<0.05 (95% confidence level). Result: There was a significant association between the use of personal protective equipment with wild-type p53 levels with p=0.002 Conclusion: The use PPE properly is positively correlated with the wild-type p53 protein levels of dental technicians in Surabaya.
Correlation between working positions and lactic acid levels with musculoskeletal complaints among dentists Putriwijaya, Fiory Dioptis; Berniyanti, Titiek; Diyatri, Indeswati
Dental Journal (Majalah Kedokteran Gigi) Vol 49, No 4 (2016): (December 2016)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v49.i4.p201-205

Abstract

Background: Musculoskeletal complaints have been common for dentists since their body is unknowingly often in inappropriate positions when caring for patients. For example, they bend towards patients, suddenly move, and then rotate from one side to another. The repetitive movements are done in long term. High activities and sufficient recovery time can cause a buildup of lactic acid in their blood leading to obstruction of the energy intake from the aerobic system in their muscle cells, resulting in fatigue. As a result, such conditions trigger decreased muscle performances. Purpose: This study aimed to determine the correlation between working positions and lactic acid levels with the risk of musculoskeletal disorders among dentists at Public Health Centers in Surabaya. Method: This research was an analytical observational research using cross sectional approach. Sampling technique used in this research was cluster random sampling with nineteen samples. To evaluate the working positions of those samples, a rapid entire body assessment (REBA) method was used. Meanwhile, to observe the musculoskeletal disorders of those samples, a Nordic body map was used. Data obtained then were analyzed using Pearson correlation test with a significance level (p<0.05). Result: Results of data analysis using the Pearson correlation test showed that the significance value obtained was 0.036. It indicates that there was a correlation between the working positions and the lactic acid levels with the musculoskeletal disorders in those dentists. The results of the Pearson correlation test also revealed that there was a correlation between the working positions and the lactic acid levels among those dentists with a significance value of 0.025. Conclusion: It may be concluded that the wrong body positions during working can increase lactic acid level in the body of dentists. The increased level of lactic acid then can affect their muscles, leading to the high risk of musculoskeletal disorders.
Biochemival Characterization of an Antibactrial Glycoprotein from Achatina fulica ferussac Snail Mucus Local Isolate and Their Implication on Bacterial Dental Infection Berniyanti, Titiek; Waskito, Edy Bagus; Suwarno, S.
Indonesian Journal of Biotechnology Vol 12, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijbiotech.7765

Abstract

Snails crawl over a variety of potentially contaminated surfaces and their foot is the primary site of entry forpathogens, parasites and a range of opportunistic organisms, so it is a little wonder that they must have a defensivesystem to protect them. The mucus secreted on the body surfaces of mollusks is known to play crucial role inlocomotion, feeding, osmoregulation, reproduction and protection of epithelial surfaces. The snail mucus alsocontains Glycoaminoglycans (GAGs) which are complex polysaccharides that participate in the regulation ofphysiological processes through the interactions with a wide variety of proteins. GAGs, such as heparin, serve as keyto biological response modifiers, in example for acting asa a target for pathogen and parasitic factors for attachment,invasion, and immune system.For years, it has been known that the mucus secretions from snails Achatina fulica ferussac local isolate can be usedas a medication, and even empirically it is used to treat infected teeth tahat is suffered by people in rural area. Theantibacterial factor was surveyed in the aqueous extract and the mucin fraction of snail Achatina fulica ferussac, andthey exhibited positive antibacterial for Gram-positive, Escherichia coli and Gram negative, Streptococcus mutans. Inthe following study, it has been proved that an antibacterial content in the mucus was a Glycoprotein. It wascomposed of two subunits of Molecular Weight (MW) 71-73 kDa. The GelCode Glycoprotein Staining Kit detectedglycoprotein sugar moieties in polyacrylamide gel and on nitrocellulose membrane, while the glycoproteincarbohydrate estimation kit detected glycoprotein and estimated carbohydrate content. The glycoprotein contentwas 4.537 ± 0.876 for carbohydrate and 6.420 ± 1.242 for protein.Keywords : characterization, glycoprotein, Achatina fullica Ferussac snail mucus, galur Jawa, antibacterialfactor