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Abstrak :
Prevalensi kematian akibat diare pada bayi dan balita yang tinggi dapat disebabkan oleh Serratia marcescens. Prevalensi kematian akibat pneumonia pada bayi dan balita dapat disebabkan oleh Klebsiella pneumoniae. Prevalensi penyakit endokarditis infektif dapat disebabkan oleh Staphylococcus epidermidis. Namun, resistensi antibiotik menjadi masalah yang serius sehingga dilakukan eksplorasi pada tanaman masoyi yang merupakan tanaman endemik dari Papua. Minyak atsiri dari kulit kayu masoyi yang diperoleh dengan metode distilasi uap dilaporkan berpotensi menghambat pertumbuhan bakteri Streptococcus mutans, Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, Staphylococcus aureus dan Bacillus cereus. Pada penelitian ini, dilakukan determinasi tanaman, pengumpulan dan penyerbukan simplisia kulit kayu masoyi, uji mikroskopik, ekstraksi minyak atsiri dengan metode distilasi air, uji fitokimia golongan terpenoid dan uji aktivitas antibakteri terhadap Klebsiella pneumoniae, Serratia marcescens dan Staphylococcus epidermidis. Minyak atsiri dibuat ke beberapa konsentrasi dengan melarutkan minyak atsiri dengan DMSO dan PEG 400. Uji aktivitas antibakteri menggunakan metode zona hambat (metode difusi cakram) dan metode konsentrasi hambat minimal (makrodilusi) terhadap Klebsiela pneumoniae, Serratia marcescens dan Staphylococcus epidermidis. Hasil metode zona hambat menunjukkan minyak atsiri dengan pelarut DMSO terhadap K.pneumoniae berpotensi lemah (1-1,25 mm) sedangkan, terhadap S.marcescens (10,625-13,25 mm) dan S.epidermidis (11,75- 14,5 mm) berpotensi kuat. Minyak atsiri dengan pelarut PEG 400 terhadap K.pneumoniae (5-9,75 mm), S.marcescens (5,5-8,25 mm) dan S.epidermidis (4,625-7,5 mm) berpotensi sedang. Hasil metode makrodilusi menunjukkan nilai KHM minyak atsiri Cryptocarya massoy (Oken) Kosterm terhadap K.pneumoniae = 125 µg/mL, S.marcescens = 62,5 µg/mL dan S.epidermidis = 31,25 - 15,625 µg/mL. ......The high prevalence of death from diarrhea in infants and toddlers can be caused by Serratia marcescens. The prevalence of death from pneumonia in infants and toddlers can be caused by Klebsiella pneumoniae. The prevalence of infective endocarditis can be caused by Staphylococcus epidermidis. However, antibiotic resistance is a serious problem, so an exploration of the masoyi plant, which is an endemic plant from Papua, was carried out. Essential oil from masoyi bark obtained by steam distillation method has the potential to inhibit the growth of Streptococcus mutans, Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, Staphylococcus aureus and Bacillus cereus as reported. In this study, plant determination, collection and pollination of masoyi bark simplicia, microscopic test, extraction of essential oils by water distillation method, phytochemical test of terpenoids and antibacterial activity tests against Klebsiella pneumoniae, Serratia marcescens and Staphylococcus epidermidis were carried out. The essential oil was made into several concentrations by dissolving the essential oil with DMSO and PEG 400. The antibacterial activity was tested using the zone of inhibition method (disk diffusion method) and the minimal inhibitory concentration method (macrodilution) against Klebsiela pneumoniae, Serratia marcescens and Staphylococcus epidermidis. The results of the inhibition zone method showed that essential oils with DMSO as solvent were potentially weak against K.pneumoniae (1-1.25 mm) while against S.marcescens (10.625-13.25 mm) and S.epidermidis (11.75-14.5 mm). mm) potentially strong. Essential oil with solvent PEG 400 against K. pneumoniae (5-9.75 mm), S. marcescens (5.5-8.25 mm) and S. epidermidis (4.625-7.5 mm) has moderate potential. The results of the macrodilution method showed the MIC value of Cryptocarya massoy (Oken) Kosterm essential oil against K.pneumoniae = 125 g/mL, S.marcescens = 62.5 g/mL and S.epidermidis = 31.25 - 15,625 g/mL.

Abstrak :
Antibiotika golongan penisilin adalah antibiotika yang paling luas serta paling banyak digunakan untuk terapi pasien infeksi. Dari berbagai studi diperoleh fakta bahwa telah banyak mikroba resisten terhadap penisilin. Pemberian penisilin yang telah resisten berbahaya bagi pasien dengan penyakit infeksi, selain itu lebih lambatnya penemuan obat baru serta lebih mahalnya harga obat baru merupakan hal penting yang berhubungan dengan kejadian resistensi. Resistensi sendiri dapat berubah menurut waktu dan berbeda di setiap tempat. Penelitian ini bertujuan untuk mengetahui pola resistensi bakteri yang diisolasi dari darah di Laboratorium Mikrobiologi Klinik Fakultas Kedokteran Universitas Indonesia (LMK FKUI) terhadap beberapa antibiotik penisilin, yaitu amoksilin, sulbenisilin, amoksilin/asam klavulanat , tikarsilin dan oksasilin selama periode 2001-2006. Pada penelitian ini digunakan data isolat darah dengan bakteri positif yang diisolasi di LMK FKUI selama periode 2001-2006. Data diolah dengan menggunakan piranti lunak WHONET 5.4. Dari 791 isolat darah, didapatkan enam bakteri tersering penyebab bakteremia yaitu Staphylococcus epidermidis (25%), Acinetobacter anitratus (16%), Pseudomonas aeruginosa (13%), Klebsiella pneumoniae (8%), Staphylococcus aureus (6%), dan Salmonella Typhi (5%). Hasil uji resitensi menunjukkan kejadian resistensi bakteri terhadap amoksilin sudah tinggi pada Klebsiella pneumoniae , masih cukup rendah pada Salmonella Typhi, sedangkan keampuhannya terhadap Staphylococcus epidermidis, dan Staphylococcus aureus mulai menurun. Kejadian resistensi bakteri terhadap sulbenisilin rendah pada Staphylococcus epidermidis,Staphylococcus aureus dan Salmonella Typhi , dan sudah cukup tinggi pada Klebsiella pneumoniae. Kejadian amoksilin/asam klavulanat sudah tinggi pada Acinetobacter anitratus dan Pseudomonas aeruginosa dan masih cukup rendah pada Klebsiella pneumoniae, Salmonella Typhi, Staphylococcus epidermidis, dan Staphylococcus aureus. Kejadian resistensi bakteri terhadap tikarsilin sudah tinggi pada Acinetobacter anitratus, Pseudomonas aeruginosa dan Klebsiella pneumoniae dan masih cukup rendah pada, Salmonella Typhi,dan Staphylococcus epidermidis. Kejadian resistensi Staphylococcus aureus terhadap oksasilin masih cukup rendah, sedangkan keampuhan oksasilin terhadap Staphylococcus epidermidis mulai menurun. ......The group of penicillins antibiotics is the widest and the most used antibiotics for infection patient therapy. From several studies, there is a fact that many microbes have resistence to penicillins. The giving of penicillin that has resisted to a patient who gets an infection may be perilous. Besides that, the slower invention of new medicines and the more expensive their prices are important factors related to the resistance. The resistance itself may change in every second of time and would be different in some places. The research which was conducted in Clinical Microbiology Laboratory FMUI aims to know the pattern of the resistance of bacteria which is isolated from blood toward several kinds of penicillin; they are amoxicillin, sulbenicillin, amoxicillin/ clauvalanic acid, ticarcillin, and oxacillin between 2001-2006. The data was processed using WHONET 5.4 software. From 174 isolat bloods, there are six kinds of bacteria that often cause bacterimia; they are Staphylococcus epidermidis (25%), Acinetobacter anitratus (16%), Pseudomonas aeroginosa (13%), Klebsiella pneumoniae (8%), Staphylococcus aureus (6%), and Salmonella typhi (5%). The result of resistance test shows that the frequency of bacteria’s resistance toward amoxillin has been high in Klebsiella pneumoniae and still low in Salmonella Typhi, on the other hand, the effectiveness of amoxicillin toward Staphylococcus epidermidis and Staphylococcus aerus is getting decreased. The frequency of bacteria’s resistance toward sulbenicillin still low in Staphylococcus epidermidis, Staphylococcus aerus and Salmonella Typhi and has been high in Klebsiella pneumoniae. The frequency of bacteria’s resistance toward amoxicillin/ clavulaic acid has been high in Acinetobacter anitratus and Pseudomonas aeruginosa and still low in Klebsiella pneumoniae, Salmonella Typhi, Staphylococcus epidermidis, and Staphylococcus aureus. The frequency of bacteria’s resistance toward ticarcillin has been high in Acinetobacter anitratus, Pseudomonas aeuginosa and Klebsiella pneumoniae and still low in Salmonella Typhi and Staphylococcus epidermidis. The frequency of Staphylococcus aerus is still low. On the other hand, the effectiveness of oxacillin toward Staphylococcus epidermidis is getting decreased.

Abstrak :
This book provides a series of reports from the 1st International Conference on Model Hosts. This first of its kind meeting focused on invertebrate, vertebrate and amoeboid systems used for the study of host-pathogen interactions, virulence and immunity, as well as on the relevance of these pathogenesis systems and mammalian models. Importantly, a common, fundamental set of molecular mechanisms is employed by a significant number of microbial pathogens against a widely divergent array of metazoan hosts. Moreover, the evolutionarily conserved immune responses of these model hosts have contributed important insights to our understanding of the innate immune response of mammals.