Antibiotik profilaksis adalah antibiotik yang diberikan pada pasien yang akan menjalani pembedahan untuk mencegah terjadinya infeksi akibat tindakan operasi. Antibiotik profilaksis diberikan secara intravena agar dicapai konsentrasi maksimum di serum/jaringan pada saat operasi. Pemilihan antibiotika profilaksis yang sesuai pada tindakan pembedahan sangat menentukan keberhasilan dalam mencegah terjadinya infeksi luka operasi. Penelitian ini bertujuan untuk mengetahui besarnya angka kejadian infeksi luka operasi dan mengevaluasi penggunaan antibiotika profilaksis dalam pencegahan infeksi luka operasi di rumah sakit Premier Bintaro, Kota Tanggerang. Jenis penelitian ini adalah observasional dengan rancangan studi deskriptif analitik melalui penelusuran data yang dilakukan secara retrospektif pada pasien yang menjalani pembedahan di ruang operasi. Analisa dan evaluasi data berupa deskripsi pola penggunaan antibiotika profilaksis dan angka kejadian infeksi luka operasi serta hubungan antara penggunaan antibiotika profilaksis dengan kejadian infeksi luka operasi. Hasil yang diperoleh dalam penelitian ini menunjukan bahwa angka kejadian infeksi luka operasi pada tindakan pembedahan sebanyak 7 kasus (1,97%) dari jumlah total 355 kasus bedah pada periode penelitian. Antibiotika profilaksis yang paling banyak digunakan adalah sefalosporin generasi III (66,2%). Hasil analisa dengan Fisher exact menunjukkan bahwa sifat operasi, jenis antibiotika dan waktu pemberian antibiotika mempunyai hubungan bermakna dengan kejadian ILO (p <0,05). Dari penelitian terlihat pula bahwa semakin lama operasi berlangsung semakin tinggi risiko infeksi luka operasi. Antibiotik sefalosporin generasi III terbanyak yang digunakan adalah ceftriaxone injeksi.
Objective: The aim of the present study was to formulate bromelain into nanoparticles in order to improve its stability and activity. Methods: Crude bromelain was prepared by protein precipitation from the pineapple stem juice using ammonium sulphate at the concentration of 60% (w/v). Nanoparticles containing crude bromelain were generated using the ionic gelation method with hydroxypropyl cellulose–cysteamine (HPC-cysteamine) conjugate as a matrix. Crude bromelain was then added to the HPC-cysteamine solution for ionic interaction to construct the nanoparticles, which were then analyzed for their particle size and zeta potential. The resulting nanoparticles were mixed with adenosine diphosphate (ADP) to perform anti-platelet aggregation. Results: The nanoparticle had 928.3 nm in particle size and-7.25 mV in zeta potential. Anti-platelet activity of crude bromelain and the nanoparticles were determined with modification of light transmission aggregometry (LTA), in which ADP was used to induce an aggregation while a spectrophotometer UV-Vis was used to measure the absorbance at the wavelength of 600 nm. The result showed that crude bromelain and the nanoparticles rendered percentage inhibition of 8.00±1.17% and 48.56±11.19%, respectively. Conclusion: Based on the result of a one-way analysis of variance (ANOVA), it was concluded that there was a significant difference in percentage inhibition between the two samples. The nanoparticles demonstrated a better anti-platelet aggregation activity compared to crude bromelain.
<p>Mangosteen fruit rind extract contain a lot of antioxidants. α-Mangostin is a component in mangosteen fruit rind that has highest antioxidant effect. The oral solution containing mangosteen fruit rind extract is required an assay method for quality assessment. Determination of a very low concentration of analyte in sample with very complex matrix, such as α-mangostin in oral solution, needs a selective and sensitive method, such as high performance liquid chromatography (HPLC). In this study, α-mangostin assay was performed by reverse phase HPLC system using octadecylsilane (C18) as stationary phase, methanol-water (90:10) as mobile phase, the flow rate is 1.0 mL/min, and the UV detector at 316 nm. The retention time of α-mangostin was 9.622 minutes. Peak of α-mangostin was well separated with resolution of 1.725. Linearity was in the range of 1.67-5.01 ppm with correlation coefficient of 0.9986. The relative standard deviation (RSD) was 1.30 %, the recovery was in the range of 95.80-100.76 </p>
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