Prothrombin Fragment 1.2 (F1.2) in Relation with Plasma Leakage Dan Thrombocytopenia in Dengue Infection

Latar belakang: Manifestasi klinis demam berdarah Dengue (DBD) adalah kebocoran plasma dan trombositopenia. Salah satu teori penyebab kedua hal tersebut adalah kadar trombin yang meningkat akibat aktivasi koagulasi. Kadar trombin dapat diwakili oleh kadar F1.2. Tujuan penelitian ini adalah untuk mengetahui hubungan antara kadar F1.2 dengan kebocoran plasma dan trombositopenia pada infeksi Dengue. Metode: Desain penelitian ini adalah potong lintang, mengggunakan plasma EDTA dari pasien terinfeksi virus Dengue. Subyek penelitian adalah 10 subyek dengan kebocoran plasma dan 10 subyek tanpa kebocoran plasma pada infeksi Dengue, 6 sampel berpasangan untuk perbandingan fase kritis dan fase konvalesen, 26 sampel untuk uji korelasi antara kadar F1.2 dengan jumlah trombosit. Hasil: Penelitian menunjukkan kadar F1.2 pada pasien terinfeksi virus Dengue dengan kebocoran plasma (rerata ± 2SD) 147,4 ± 105,82 pg/mL lebih tinggi secara bermakna dibanding tanpa kebocoran plasma 51,3 ±39,92 pg/mL. Kadar F1.2 pada fase kritis dengan median 186,3 (108,6-223,2) pg/mL lebih tinggi secara bermakna dibanding fase konvalesen 46,5 (27,4-51,9) pg/mL. Terdapat korelasi negatif yang bermakna dengan kekuatan sedang antara kadar F1.2 dengan jumlah trombosit, nilai r = - 0,609. Kesimpulan: Terdapat peningkatan aktivasi koagulasi yang ditunjukkan dengan peningkatan kadar F1.2 pada fase kritis, berkaitan dengan kebocoran plasma dan trombositopenia pada pasien terinfeksi virus Dengue. Kata kunci: infeksi Dengue, kebocoran plasma, trombin, fragmen protrombin (F1.2), trombositopenia Background: Clinical manifestations of Dengue hemorrhagic fever are plasma leakage and thrombocytopenia. Both manifestations are thought to be caused by an increased thrombin level due to activation of coagulation. The aim of this study is to look for any association between F1.2 level and plasma leakage and also between F1.2 level and thrombocytopenia in Dengue infected patients. Methods: This study used EDTA plasma from patients infected with Dengue virus. The study design was cross sectional. The thrombin level was represented by the prothrombin fragment 1.2 (F1.2) level. Twenty subjects were enrolled in this study, consisted of 10 subjects with plasma leakage and 10 without plasma leakage, 6 pairs of samples in critical phase and convalescent phase, 26 samples for correlation test between F1.2 level and platelet count. Results: In this study, it was found that the F1.2 level in patients with plasma leakage (mean ± 2 SD) 147.4 ± 105.82 pg/mL is significantly higher compared to patients without plasma leakage 51.3 ±39.92 pg/mL, and the F1.2 level in critical phase has a median of 186.3 (108.6-223.2) pg/mL which is significantly higher compared to convalescent phase 46.5(27.4-51.9) pg/mL. Also it was found that a medium negative correlation between F1.2 level and the thrombocyte count existed, r = - 0.609. Conclusion: The results of the study suggest that there was increased coagulation activation at critical phase in patients infected with Dengue virus associated with plasma leakage and thrombocytopenia

Jaringan Mikro Arus Searah (Dc Microgrid) sebagai Upaya Ketersediaan Energi Listrik dalam Pengembangan Energi Terbarukan

Pengembangan sumber energi terbarukan merupakan pengembangan sumber energi yang potensial,seperti tenaga angin, matahari, dan sel bahan bakar hidrogen. Pembangkit listrik terdistribusimemberikan solusi atas penggunaan jaringan listrik mikro arus searah ( JLMAS), PengembanganJLMAS akan memberikan konstribusi dalam pengembangan distribusi pembangkitan dari beberapaenergi terbarukan dalam mengatasi ketersediaan energi listrik. JLMAS merupakan gabungan daribeberapa energi terbarukan yang menyuplai ke jaringan mikro, yang dapat bekerja bersamaandengan jaringan distribusi utama melalui konverter dua arah ( Biderectional Converter DC-AC)maupun bekerja sendiri dalam jaringan listrik mikro arus searah, makalah ini menjelaskan konsepJLMAS yang dapat diterapkan dalam sistim jaringan distribusi dari beberapa energi terbaruka

Evaluasi Elektrokardiogram Interval QTc dan JTc pada Penderita Malaria Vivaks yang Diberikan Dihidroartemisinin-Piperakuin dan Primakuin

Dihidroartemisinin-piperakuin (DHA-PPQ) telah digunakan secara global sebagai terapi malaria vivaks. Salah satu efek samping DHA-PPQ adalah pemanjangan repolarisasi ventrikel yang dapat menimbulkanaritmia ventrikuler yaitu Torsade de Pointes (TdP). Studi before-after ini bertujuan untuk mengetahuiperbedaan rerata interval QTc dan JTc penderita malaria vivaks sebelum dan sesudah pemberian DHA-PPQdan primakuin (PQ). Penelitian dilakukan di Lembaga Biologi Molekuler Eijkman, Jakarta pada bulan Mei-Juli2015. Sumber data adalah data sekunder hasil rekaman EKG pada penelitian utama “Safety, tolerability, andefficacy of artesunat-pyonaridine or dihydroartemisinin-piperaquine in combination with primaquine as radicalcure for P.vivax in Indonesian soldiers” tahun 2010. Subyek yang masuk kriteria seleksi pada pemberianDHA-PPQ dan PQ, masing-masing berjumlah 24 subyek dan 14 subyek. Interval QT dan JT dalam penelitianini menggunakan dua formula yang sudah dikoreksi terhadap frekuensi denyut jantung yaitu formula Bazett(QTcB, JTcB) dan Fridericia (QTcF, JTcF). Pemberian DHA-PPQ menunjukkan pemanjangan rerata intervalQTcF secara bermakna dibandingkan baseline yaitu sebesar 14,42 milidetik terjadi di D3 predose dan 20,53milidetik di D3 postdose. Rerata pemanjangan interval JTcF setelah pemberian DHA-PPQ adalah 13,43milidetik di D3 postdose. Pada pemberian PQ terdapat perbedaan nilai rerata interval QTcB dibandingkanbaseline sebesar 19,42 milidetik. Rerata pemanjangan interval JTcF dibandingkan baseline 16,50 milidetik diD42 postdose dan secara statistik bermakna. Kata kunci: dihidroartemisinin-piperakuin, primakuin, malaria vivaks, Torsade de Pointes, interval QTc, interval JTc.   Electrocardiogram Evaluation of QTc and JTc Interval of DihydroartemisininPiperaquine and Primaquine Therapies Given to The Vivax Malaria Patient

Oxygen Hyperbaric Therapy in Patients with Radiation Proctitis

Background: Cervical cancer is the most common female Malignancy in developing countries, including Indonesia. It usually occurs at the age of 20 years, reaches the peak incidence at the age of 35-55 years, and afterwards, the incidence declines. Radiotherapy is the most important treatment method in cervical cancer, especially for local advanced stage or stage IIb-IVa. It is also effective for the early stage. Oxygen hyperbaric therapy (OHBT) is defined as 100% oxygen (O2) administration of 2-3 ATA (Absolute Atmospheres) pressures in a high-pressure room. OHBT accelerates wound healing by improving oxygen perfusion around the wound and by increasing angiogenesis through Nitric Oxide Synthetase (NOS). Methods: The study was conducted at Cipto Mangunkusumo hospital, while OHBT was provided at Dr. Mintoharjo Navy Hospital. Block randomization was performed, Resulting 32 patients in OHBT group and 33 patients in control group; both groups were at normal distribution. The prevalence of radiation proctitis in OHBT and control group was determined using chi-square test. Results: By comparing the prevalence of radiation proctitis between OHBT and the control group, show that OHBT could decrease proctitis prevalence by p = 0.03. Conclusions: This study indicates that OHBT may reduce the prevalence of radiation proctitis. The OHBT is save and secure to the patients

Early Screening of Hemoglobinopathy in Indonesia Using Erythrocyte Indices

BACKGROUND: The mutation spectrums of hemoglobinopathy are different among populations that yield a different result of erythrocyte indices. Calculation of erythrocyte indices with some formula has been reported to differentiate between hemoglobinopathy and non-hemoglobinopathy, but its cut-off should be recalculated specific for each population to gain a better sensitivity and specificity. We aimed to evaluate red blood cell count (RBC), Mentzer index, red cell distribution width (RDW), RDW index (RDWI), Shine and Lal index (S&L) and Green and King index (G&K) to screen hemoglobinopathy in Indonesia.METHODS: A retrospective cross-sectional study was performed on 202 subjects. The diagnosis of hemoglobinopathy was determined based on the results of complete blood count (CBC) data, high-performance liquid chromatography (HPLC) and Hemoglobin H (HbH) inclusion body. The ferritin concentration was checked to determine the status of iron. The erythrocytes indices were analyzed and calculated to predict hemoglobinopathy. RESULTS: A total 202 subjects who met the criteria were involved in this study. Fifty percent showed pure hemoglobinopathy and 4% showed a combination of thalassemia and hemoglobinopathy. The hemoglobin concentration and RBC were significantly higher, and the mean corpuscular volume (MCV) and RDW were significantly lower in hemoglobinopathy compared to iron deficiency. The difference was not significant if the hemoglobinopathy was combined with iron deficiency. By this study\u27s cut-off, the G&K and RDWI showed the highest accuracy, sensitivity, and specificity.CONCLUSION: The new cut-off of erythrocyte index and its calculation to screen hemoglobinopathy in Indonesia showed a higher sensitivity and specificity, especially for G&K and RDWI with cut-off 73 and 228, respectively. The presence of iron deficiency in hemoglobinopathy could decrease the sensitivity

A Clinical Trial on Biological Half Life of Bioactive Protein from Lumbricus rubellus, DLBS1033 in Healthy Volunteers

Background: DLBS1033 is a bioactive protein fraction extracted from Lumbricus rubellus, with fibrinogenolytic, fibrinolytic and anti-aggregation activities reported in an in vitro study. Plasma half-life is an important parameter to calculate its dose. This study was conducted to evaluate the biological half-life of DLBS1033 by measuring serial plasmin-antiplasmin (PAP) complex. PAP complex is a stable and inactive compound as a result of fibrinolysis process. Methods: this was an open-label clinical trial in healthy adult subjects. Subjects were divided into two groups to receive single dose drugs (received 3 x 490 mg) or repeated administration until steady state conditions (3 x 490 mg/day for 3 days). Blood samples for PAP complex measurement were collected at time 0 (before drug administration for single dose group), then at 0.5, 1, 1.5, 2, 3, 6, 8, 10, 12, and 24 hours after drug administration. Safety parameters used in this study were creatinine, prothrombin time (PT), activated partial thromboplastin time (aPTT), SGOT, and SGPT. Results: the biological half-life of DLBS1033 was calculated based on the mean of PAP complex concentration on each time sampling. In single dose group, the highest mean of PAP complex concentration was reached before drug administration. Our result showed that the activity of DLBS1033 could not be determined after single dose administration. In steady state condition, the PAP complex concentration increase in 2 hours after last drug administration. The biological half-life of DLBS1033 was 8.6 hours. There were no significant safety findings on all laboratory parameters and no serious adverse events. Conclusion: it is concluded that the fibrinolytic effects of DLBS1033 can be measured in steady state condition. The biological half-life of DLBS1033 in steady state condition was 8.6 hours. There were no serious adverse events on two groups of subjects