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"Indonesia merupakan negara dengan beban TB terbesar kedua di dunia. Prevalensi infeksi penyerta jamur paru juga tinggi, salah satunya aspergilosis paru kronik (APK). Alat diagnostik yang baik dan mudah digunakan sangat diperlukan untuk menunjang diagnosis APK, namun data terkait hal tersebut di Indonesia masih terbatas. Penelitian ini bertujuan untuk mengetahui nilai performa diagnostik deteksi antibodi spesifik Aspergillus berbasis ELISA manual dan otomatis pada pasien TB paru. Penelitian ini merupakan uji diagnostik untuk membandingkan hasil deteksi antibodi spesifik Aspergillus berbasis ELISA menggunakan metode manual dan otomatis dari sera pasien TB paru yang diperiksa di Laboratorium Parasitologi FKUI. Dari 62 subjek yang memenuhi kriteria inklusi, 56,5% pasien adalah perempuan. Median usia pasien adalah 34 tahun dengan nilai minimum 16 dan nilai maksimum 72. Proporsi hasil positif ELISA manual adalah 12,9%, sedangkan proporsi hasil positif ELISA otomatis adalah 29%. Metode ELISA manual memiliki nilai performa diagnostik 20% untuk sensitivitas, 90,48% untuk spesifisitas, 61,5% untuk nilai duga positif, dan 59,79% untuk nilai duga negatif. Adapun ELISA otomatis memiliki nilai performa diagnostik 70% untuk sensitivitas, 90,48%untuk spesifisitas, 84,83% untuk nilai duga positif, dan 79,86% untuk nilai duga negatif. Kemampuan diagnostik ELISA manual tidak sebaik otomatis, namun dapat dipertimbangkan sebagai alat diagnosis penapisan yang lebih mudah diakses, khususnya di daerah dengan sumber daya terbatas. Perlu dilakukan penelitian lanjutan mengenai cut-off ELISA manual yang sesuai untuk populasi Indonesia.

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Indonesia is a country with the second largest TB burden in the world. The prevalence of pulmonary fungal infections is also high, one of which is chronic pulmonary aspergillosis (CPA). A good and easy-to-use diagnostic tool is needed to aid CPA diagnosis. This study aims to determine the diagnostic performance value of Aspergillus-specific antibody detection based on manual and automatic ELISA on pulmonary TB patient’s serum carried out at Parasitology Laboratory FMUI. This diagnostic test study compared the results of Aspergillus-specific antibody detection in pulmonary TB patient’s sera based on ELISA using manual and automatic methods. Of the 62 subjects who met the inclusion criteria, 56.5% of the patients were women. The median age of the patients was 34 years with a minimum value of 16 and a maximum value of 72. The proportion of positive results for manual ELISA was 12.9%, while the proportion of positive results for automatic ELISA was 29%. Manual ELISA has a diagnostic performance value of 20% for sensitivity, 90.48% for specificity, 61.5% for a positive predictive value, and 59.79% for a negative predictive value. Meanwhile, automatic ELISA has a diagnostic performance value of 70% for sensitivity, 90.48% for specificity, 84.83% for a positive predictive value, and 79.86% for a negative predictive value. Manual ELISA diagnostic capabilities are not as good as automated one but can be considered as a screening diagnostic tool as it is more accessible, especially in areas with limited resources. It is necessary to study the appropriate cut-off on manual ELISA Indonesian population."

"Latar belakang: Indonesia memiliki beban tuberkulosis (TB) paru tinggi. Aspergilosis paru kronik (APK) sering ditemukan pada pasien TB. Diagnosis APK menjadi tantangan di Indonesia karena keterbatasan sumber daya. Diperlukan alat diagnostik yang mudah, murah, dan memberikan hasil cepat dengan akurasi baik untuk membantu menegakkan diagnosis APK. Penelitian ini bertujuan untuk mengetahui nilai diagnostik ICT Aspergillus pada pasien TB paru.Metode: Penelitian ini berdesain potong lintang dan merupakan bagian dari penelitian payung tentang diagnosis APK pada pasien TB paru di Jakarta. Serum pasien TB paru yang memenuhi kriteria inklusi diperiksa menggunakan ICT Aspergillus (LDBio, Diagnostics, Lyon, France) dan IgG Spesifik Aspergillus ELISA (Bordier affinity products, Crissier, Switzerland) sesuai protokol di Laboratorium Mikologi Departemen Parasitologi FKUI pada Februari-November 2021.Hasil: Dari 105 subjek penelitian yang memenuhi kriteria inklusi, sebanyak 58,1% adalah laki-laki. Rerata usia pasien 47,1617,1 tahun. Proporsi hasil positif ICT Aspergillus adalah 10,5% dan IgG spesifik Aspergillus ELISA 43,8%. Sensitivitas ICT Aspergillus 23,9%, dengan spesifisitas 100%, nilai duga positif 100%, dan nilai duga negatif 62,8%.Kesimpulan: Kemampuan diagnostik ICT Aspergillus belum optimal sebagai alat skrining, tetapi dapat dipertimbangkan sebagai alat diagnosis pasien TB paru suspek APK pada daerah dengan sumber daya terbatas.

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ackground: Indonesia has high pulmonary tuberculosis (TB) burden. Chronic pulmonary aspergillosis (CPA) is common in pulmonary TB patients. Diagnosing CPA is challenging in Indonesia because of the limited resources available. A new rapid and robust diagnostic tool is needed. This research aims to evaluate the diagnostic value of the ICT Aspergillus in pulmonary TB patients.

Methods: This cross-sectional study is a part of the CPA diagnostic research of pulmonary TB patients. Pulmonary TB patients' serum fulfilling the inclusion criteria were assessed using ICT Aspergillus (LDBio, Diagnostics, Lyon, France) and Aspergillus-specific IgG ELISA (Bordier affinity products, Crissier, Switzerland) in Mycology Laboratory of Parasitology Department FMUI in February-November 2021.

Results: From 105 subjects included, the proportion of men 58,1% with 47,1617,1 years age means. The Aspergillus IgG was positive in 10,5% patients with ICT, and 43,8% with ELISA. The sensitivity of ICT Aspergillus was 23,9%, the specificity was 100%, the positive predictive value was 100%, and the negative predictive value was 62,8%.

Conclusion: ICT Aspergillus has a fair diagnostic capacity in pulmonary TB patients as screening tools for CPA. However, the usage of ICT Aspergillus as point-of-care test in limited-resource settings needs to be considered."

"Latar belakang: Pasien asma persisten berisiko mengalami penyakit jamur paru, termasuk aspergilosis bronkopulmoner alergika (ABPA) dan aspergilosis paru kronik (APK). Deteksi IgG spesifik Aspergillus metode enzyme-linked immunosorbent assay (ELISA) merupakan pemeriksaan mikologi yang direkomendasikan untuk diagnosis APK. Metode baru yang lebih praktis adalah immunochromatography test (ICT) Aspergillus, tetapi data hasil pemeriksaan tersebut masih terbatas di Indonesia. Penelitian ini bertujuan untuk mengetahui nilai diagnostik ICT Aspergillus dibandingkan dengan metode ELISA pada pasien asma persisten.Metode: Uji diagnostik dilakukan untuk mengetahui nilai diagnostik ICT Aspergillus dibandingkan dengan IgG spesifik Aspergillus metode ELISA. Bahan klinis berasal dari serum pasien asma persisten di RSUP Persahabatan pada tahun 2021 yang memenuhi kriteria inklusi. Deteksi antibodi kedua metode tersebut dilaksanakan di laboratorium Departemen Parasitologi FKUI untuk mengetahui proporsi, sensitivitas, spesifisitas, nilai duga positif dan negatif.Hasil: Deteksi antibodi spesifik Aspergillus kedua metode dilakukan terhadap 50 serum pasien. Proporsi hasil positif ICT Aspergillus 16%, sedangkan ELISA 32%. Nilai diagnostik ICT Aspergillus dibandingkan ELISA menunjukkan sensitivitas 25%, spesifisitas 88,24%, nilai duga positif 50%, dan nilai duga negatif 71,43%.Kesimpulan: Pemeriksaan ICT Aspergillus belum dapat direkomendasikan sebagai pemeriksaan standar diagnosis APK pada pasien asma persisten karena memiliki sensitivitas rendah

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Introduction: Patients with persistent asthma are at risk of developing pulmonary mycoses, including allergic bronchopulmonary aspergillosis (ABPA) and chronic pulmonary aspergillosis (CPA). Aspergillus immunochromatography test (ICT) is a new practical method to detect Aspergillus-specific antibodies, but data on ICT results are still limited in Indonesia. This study aims to determine the diagnostic value of Aspergillus ICT compared to ELISA in persistent asthma patients.

Methods: Diagnostic tests were carried out to determine the diagnostic value of Aspergillus ICT. The antibody detection on the sera of persistent asthma patients at Persahabatan General Hospital in 2021 who met inclusion criteria was carried out in the laboratory of Parasitology Department, FMUI to determine the proportion, sensitivity, specificity, positive and negative predictive values.

Results: Detection of Aspergillus-specific antibodies was performed on 50 patient sera using ICT and ELISA. The proportion of positive results for Aspergillus ICT revealed 16%, while the ELISA 32%. The diagnostic value of Aspergillus ICT compared to ELISA showed a sensitivity of 25%, specificity of 88.24%, a positive predictive value of 50%, and a negative predictive value of 71.43%.

Conclusion: Aspergillus ICT could not be recommended as a standard examination for CPA diagnosis in persistent asthma patients due to its low sensitivity."

"Latar belakang: Indonesia memiliki beban tuberkulosis yang tinggi. Kerusakan paru yang ditimbulkan mendasari terjadinya aspergillosis paru kronik (APK). Salah satu kriteria diagnosis APK ialah bukti keterlibatan Aspergillus. Mempertimbangkan keterbatasan kultur, deteksi antibodi ELISA menjadi modalitas alternatif. Penelitian ini bertujuan membandingkan performa diagnostik pemeriksaan IgG spesifik Aspergillus ELISA manual dan otomatis pada pasien riwayat TB paru. Metode: Penelitian potong lintang ini membandingkan pemeriksaan IgG spesifik Aspergillus ELISA manual Bordier dan ELISA otomatis Immulite menggunakan serum pasien dengan riwayat TB. Performa diagnostik dibandingkan dalam bentuk proporsi hasil positif, sensitivitas, spesifisitas, nilai duga positif, nilai duga negatif. Hasil: Terdapat total 68 subjek, dengan median usia 34,5 tahun, proporsi lansia 11,76% dan proporsi laki-laki 42,65%. Proporsi hasil positif pemeriksaan IgG spesifik Aspergillus ELISA manual dan ELISA otomatis masing-masing 13,24% dan 48,53%. Pemeriksaan IgG spesifik Aspergillus ELISA manual memiliki sensitivitas 20,83%, spesifisitas 90,91%, nilai duga positif 55,56%, dan nilai duga negatif 67,80%. Pemeriksaan IgG spesifik Aspergillus ELISA otomatis menunjukkan sensitivitas 91,67%, spesifisitas 75%, nilai duga positif 66,67%, dan nilai duga negatif 94,29%. Kesimpulan: Performa diagnostik dan teknis pemeriksaan IgG spesifik Aspergillus ELISA otomatis lebih baik dibandingkan ELISA manual, tetapi pemilihan modalitas diagnosis perlu mempertimbangkan faktor keterjangkauan, aksesibilitas, dan akurasi sesuai kebutuhan dan ketersediaan sumber daya.

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Introduction: Indonesia has high tuberculosis (TB) burden. The resulting lung damage underlies chronic pulmonary aspergillosis (CPA) development. CPA is diagnosed in patients with evidence of Aspergillus involvement as one of its criteria. Taking into account the limitations of culture, ELISA antibody detection becomes alternative modality. This study aims to compare diagnostic performance between manual and automated ELISA for Aspergillus-specific IgG in patients with treated TB. Method: This cross-sectional study compares Aspergillus-specific IgG test using Bordier manual ELISA and Immulite automated ELISA on sera from patients with treated TB. Diagnostic performance was compared in positive test proportion, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV). Result: There are 68 subjects, with median age of 34,5 years, elderly subjects proportion of 11,76%, male proportion of 42,65%. Positive results proportion from Aspergillus-specific IgG manual and automated ELISA are 13,24% and 48,53%, respectively. Manual ELISA shows 20,83% sensitivity, 90,91% specificity, 55,56% PPV, 67,80% NPV. Automated ELISA shows 91,67% sensitivity, 75% specificity, 66,67% PPV, 94,29% NPV. Conclusion: Technical and diagnostic performance of automated ELISA Aspergillus-specific IgG test is better than manual ELISA, but choosing diagnostic modality needs consideration on factors such as affordability, accessibility, and accuracy according to the needs and available resources."

"Latar belakang: Tuberkulosis (TB) dapat menimbulkan komplikasi yang disebabkan oleh infeksi Aspergillus spp, yaitu Aspergillosis Paru Kronik (APK) pada kavitasi di paru. Enzyme-linked Immunosorbent Assay (ELISA) otomatis dan Uji Imunokromatografi (ICT) adalah dua dari metode-metode yang menunjang diagnosis klinis APK. Kedua metode tersebut mendeteksi antibodi Aspergillus spp. Keduanya memiliki keunggulan dan kekurangan masing-masing, namun belum ada studi yang membandingkan hasil dari performa diagnosis APK kedua uji tersebut pada pasien akhir pengobatan TB. Metode: Penelitian ini bersifat deskriptif analitik dengan desain potong lintang. Pemeriksaan ELISA otomatis subjek memiliki ambang > 11,5 sebagai hasil positif. Pemeriksaan ICT subjek memiliki hasil positif jika terlihat garis pada masing-masing kolom T dan C, sedangkan hasil positif hanya terlihat satu garis pada kolom C. Hasil: Jumlah subjek keseluruhan adalah 62 subjek dan diperoleh 20 (32,3%) subjek terdiagnosis APK. Hasil positif pemeriksaan ELISA otomatis adalah 27 (43,5%) subjek, sedangkan pemeriksaan ICT adalah 2 (3,2%) subjek. Sensitivitas dan spesifisitas ELISA otomatis masing-masing adalah 75% dan 71,43%, sedangkan ICT adalah 10% dan 100%. Simpulan: ELISA otomatis memiliki performa diagnosis yang lebih baik dibandingkan ICT untuk diagnosis APK, namun ELISA otomatis masih belum tersedia secara adekuat di wilayah Indonesia sehingga penggunaan ICT tetap digunakan sebagai pemeriksaan APK.

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Introduction: Tuberculosis (TB) can cause complications caused by Aspergillus spp infection, namely Chronic Pulmonary Aspergillosis (CPA) in cavitation of the lungs. Automated Enzyme-linked Immunosorbent Assay (ELISA) and Immunochromatography Test (ICT) are two of the methods that support the clinical diagnosis of CPA. Both methods detect Aspergillus spp. antibodies. Both have their advantages and disadvantages, but there is no study that compares the results of the diagnostic performance of the CPA of the two tests in patients at the end of TB treatment.

Methods: This research was analytic descriptive with a cross-sectional design. Automated ELISA examination of subjects had a threshold > 11.5 as a positive result. ICT examination of subjects had positive results if there was a line in each T and C columns, while positive results only showed one line in C column.

Results: The total number of subjects were 62 subjects and 20 (32.3%) subjects diagnosed with CPA. Subjects showed positive results of automated ELISA examination were 27 (43.5%) subjects, while ICT examinations were 2 (3.2%) subjects. The sensitivity and specificity of the automated ELISA were 75% and 71.43%, respectively, while the ICT was 10% and 100%.

Conclusion: Automated ELISA has better diagnostic performance than ICT for CPA diagnosis, but automated ELISA was not adequately available in the Indonesian region so ICT was still used as CPA examination."

"ABSTRAKKasus infeksi measles baik individu maupun kejadian luar biasa KLB di Indonesia masih banyak ditemui. Konfirmasi infeksi measles klinis hanya dapat dilakukan di Laboratorium Nasional. Keterbatasan kit komersial yang rutin digunakan menyebabkan pemeriksaan menjadi terhambat. Pengembangan in house plate coating spesifik IgM measles dengan indirect ELISA dilakukan dengan memodifikasi dan mengoptimasi microtiter plate dengan kultur virus measles. Kultur virus measles didapat dengan menumbuhkannya pada kultur sel vero/hSLAM. Optimasi plate coating dilakukan menggunakan kultur virus measles dengan isolat MO/38/V/07 dan J/10/358/Riau dalam pengenceran 1:1 mdash;1:2.048 dan inaktif atau tidaknya virus pada saat coating dilakukan. Optimasi pemeriksaan indirect ELISA untuk in house plate coating dilakukan dengan konsentrasi konjugat 1:10, 1:25, dan 1:50. In house plate coating telah dioptimasi dan menunjukkan hasil optimum untuk mendeteksi IgM measles pada pengenceran 1:16 dengan isolat MO/38/V/07 dalam keadaan inaktif dan pemeriksaan menggunakan konsentrasi konjugat 1:25.

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ABSTRAKCases of infection measles both individuals and extraordinary events outbreak in Indonesia are still widely encountered. Confirmation of measles clinical infection can only be done at the National Laboratory. The limitations of commercial kits that are routinely used cause the examination to be inhibited. The development of a specific IgM measles in house plate coating with indirect ELISA is done by modifying and optimizing the microtiter plate with measles virus culture. Viral culture measles obtained by growing it on cell culture vero hSLAM. Optimization of plate coating was done using culture of measles virus with MO 38 V 07 and J 10 358 Riau isolates in dilution of 1 1 mdash 1.2048 and inactivation or active of virus at the time of coating. Optimization of indirect ELISA examination for in house plate coating is done with conjugate concentration 1 10, 1 25, and 1 50. In house plate coating was optimized and showed optimum results for detecting IgM measles at 1 16 dilution with MO 38 V 07 isolates in inactivation and examination indirect ELISA using a 1 25 conjugate concentration."

"[ABSTRAKPendahuluan : Kanker kolorektal termasuk salah satu morbiditas terbanyak di Indonesia dengan hasil terapi yang cenderung memprihatinkan untuk stadium lanjut lokal. Oleh karena itu diperlukan kemoradiasi neoajuvan yang merupakan terapi standar sesuai guideline untuk kanker rektum stadium lanjut lokal, meskipun demikian espons yang dihasilkan sangat bervariasi dan dipengaruhi oleh berbagai faktor, termasuk hipoksia jaringan. Osteopontin adalah penanda hipoksia endogen yang berkorelasi signifikan dengan tekanan oksigen tumor. Osteopontin juga merupakan penanda hipoksia kronis yang lebih akurat dibandingkan Carbonic Anhydrase IX (CAIX), Glucose Transporter 1 (GLUT1), dan Lactate Dehydrogenase A (LDH A) tetapi belum pernah dilakukan penelitian yang mengukur kadar OPN secara kuantitatif pada jaringan kanker rektum serta mengkorelasikannya dengan respons pengecilan tumor pada kemoradiasi neoajuvan.Metode dan Materi: Dilakukan skrining data pasien dari Rekam Medis Departemen Radioterapi. Empat belas pasien yang memenuhi kriteria inklusi dan eksklusi dianalisis retrospektif dari bulan Februari sampai dengan bulan Mei 2015. Pencitraan radiologi pasca kemoradiasi dibandingkan dengan sebelum kemoradiasi, sementara jaringan rectum didapatkan dari blok parafin yang didapatkan dari biopsi sebelum kemoradiasi. Evaluasi radiologi diukur menggunakan kriteria RECIST 1.1. Kadar OPN diperiksa menggunakan metode ELISA dan diukur menggunakan spektrofometer.Hasil : Rerata kadar OPN adalah 0.5678 ± 0.26 ng/mL. Terdapat korelasi berbanding terbalik yang kuat (r= -0.630, p= 0.016) antara kadar OPN dan pengecilan tumor. Nilai ambang batas OPN ≥0.538 ng/mL memprediksikan ketidakresponsifan terhadap kemoradiasi neoajuvan dengan tingkat sensitivitas 100% dan spesifisitas 81,8%. Meskipun demikian, tidak terdapat korelasi antara kadar OPN dengan Hemoglobin.Kesimpulan : Penelitian ini menunjukkan bahwa hipoksia terdapat pada pasien dengan kanker rektum stadium lanjut lokal dan merupakan karakter yang menandai turunnya respons pengecilan tumor terhadap kemoradiasi neoajuvan. Kadar OPN yang makin tinggi menunjukkan kondisi hipoksia yang lebih buruk dan respons yang lebih buruk untuk pengecilan tumor.

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ABSTRACTIntroduction: Colorectal carcinoma is one of the common cancer in Indonesia with concerned clinical outcome for locally advanced stage, therefore neoadjuvant chemoradiation (CRT) is needed. Neoadjuvant CRT is the mainstay treatment for locally advanced rectal carcinoma, however the response is varied due to many factors, including tissue hypoxia. Osteopontin (OPN) is an emerging endogen hypoxic marker with significant correlation with tumor pO2, also more accurate chronic hypoxic marker compared to Carbonic Anhydrase IX (CAIX), Glucose Transporter 1 (GLUT1), and Lactate Dehydrogenase A (LDH A) but there's no research that measured OPN quantity in rectal cancer tissue and correlate it with tumor shrinkage response in neoadjuvant CRT.Methods and Materials: Patients? data was screened from Radiotherapy Department Medical Record Archieves. Fourteen patients that meet the inclusion and exclusion criteria were analyzed retrospectively from February to May 2015. Radiology imaging post CRT compared to the imaging pre CRT, while the rectum tissue obtained from Formalin-Fixed Paraffin Embedded (FFPE) tissue from biopsy sampling before CRT. Radiology evaluation was measured using RECIST 1.1. OPN level was conducted using ELISA method and measured with spectrophotometry.Results: The mean OPN concentration is 0.5678 ± 0.26 ng/mL. There was a significant strong negative correlation (r = -0.630, p= 0.016) between the OPN level and tumor shrinkage. OPN cut off value ≥0.538 ng/ml predicts non-responsiveness of neoadjuvant CRT with 100% sensitivity and 81.8% specificity. However, there is no correlation between OPN concentration and Hemoglobin concentration.Conclusion: This study showed that hypoxia occurs in patients with locally advanced rectal carcinoma, and characterizes decreasing tumor shrinkage response in neoadjuvant CRT. Higher level of OPN suggests worse level of hypoxic condition and worse response of tumor shrinkage., Introduction: Colorectal carcinoma is one of the common cancer in Indonesia with concerned clinical outcome for locally advanced stage, therefore neoadjuvant chemoradiation (CRT) is needed. Neoadjuvant CRT is the mainstay treatment for locally advanced rectal carcinoma, however the response is varied due to many factors, including tissue hypoxia. Osteopontin (OPN) is an emerging endogen hypoxic marker with significant correlation with tumor pO2, also more accurate chronic hypoxic marker compared to Carbonic Anhydrase IX (CAIX), Glucose Transporter 1 (GLUT1), and Lactate Dehydrogenase A (LDH A) but there’s no research that measured OPN quantity in rectal cancer tissue and correlate it with tumor shrinkage response in neoadjuvant CRT. Methods and Materials: Patients’ data was screened from Radiotherapy Department Medical Record Archieves. Fourteen patients that meet the inclusion and exclusion criteria were analyzed retrospectively from February to May 2015. Radiology imaging post CRT compared to the imaging pre CRT, while the rectum tissue obtained from Formalin-Fixed Paraffin Embedded (FFPE) tissue from biopsy sampling before CRT. Radiology evaluation was measured using RECIST 1.1. OPN level was conducted using ELISA method and measured with spectrophotometry. Results: The mean OPN concentration is 0.5678 ± 0.26 ng/mL. There was a significant strong negative correlation (r = -0.630, p= 0.016) between the OPN level and tumor shrinkage. OPN cut off value ≥0.538 ng/ml predicts non-responsiveness of neoadjuvant CRT with 100% sensitivity and 81.8% specificity. However, there is no correlation between OPN concentration and Hemoglobin concentration. Conclusion: This study showed that hypoxia occurs in patients with locally advanced rectal carcinoma, and characterizes decreasing tumor shrinkage response in neoadjuvant CRT. Higher level of OPN suggests worse level of hypoxic condition and worse response of tumor shrinkage.]"

"Penelitian karakterisasi morfometrik dan molekuler penting dilakukan untuk mengetahui keanekaragaman spesies Gyrodactylus sp. yang menginfeksi ikan lele (Clarias gariepinus). Hasil penelitian dapat digunakan untuk pengembangan metode deteksi serta pengendalian penyakit parasitik pada ikan air tawar lainnya. Penelitian bertujuan untuk mengidentifikasi karakter morfometrik dan molekuler parasit cacing Gyrodactylus sp. yang ditemukan pada ikan lele (Clarias gariepinus). Identifikasi Gyrodactylus dilakukan dengan analisis median hook dan daerah internal transcribed spacer (ITS) 1 and 2 pada DNA ribosom. Tahapan penelitian meliputi koleksi parasit, pengamatan secara mikroskopis, pengukuran karakter morfometrik, ekstraksi DNA, amplifikasi, visualisasi hasil PCR, sekuensing dan analisis data. Hasil analisis karakter morfometrik diperoleh data panjang tubuh sebesar 850,00 ± 246,22 (500?1150) μm, lebar tubuh 116,36 ± 19,30 (80?155) μm, panjang faring 52,50 ± 3,54 (50?55) μm, lebar faring 48,75 ± 1,77 (47,5?50) μm, panjang opisthaptor 56,98 ± 8,24 (44-75) μm, lebar opisthaptor 115,12 ± 18,17 (90-150) μm, panjang total jangkar 96,37 ± 7,10 (75-110) μm, panjang ruas jangkar 50,29 ± 5,72 (40?62,5) μm, panjang poros jangkar 55,15 ± 6,69 (37-70) μm, panjang akar jangkar 43,80 ± 6,16 (32-55) μm, jarak celah jangkar 31,15 ± 6,91 (24-50) μm, panjang total kait tepi 30,00 ± 3,10 (26-35) μm, panjang lengkung kait tepi 5,13 ± 1,53 (3,2-7,5) μm dan panjang poros kait tepi 24,87 ± 2,23 (22,80-29) μm. Analisis PCR sampel DNA Gyrodactylussp. berhasil dilakukan berdasarkan munculnya pita DNA (band) pada kisaran ukuran 1.009 bp-1.014 bp. Hasil analisis filogenetik menunjukkan Gyrodactylus sp. memiliki kekerabatan terdekat dengan spesies Gyrodactylus rysavyi dengan homologi mencapai 99%. Berdasarkan karakterisasi morfometrik dan molekuler dapat disimpulkan bahwa Gyrodactylus sp. hasil penelitian merupakan spesies Gyrodactylus rysavyi.

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Research on morphometric and molecular characterization important to determine the diversity of Gyrodactylus sp. infected on African catfish. The results of this research can be used to develop detection methods of other fish parasites diseases. The present study aimed to identify morphometric and molecular characteristic of the Gyrodactylus sp. parasite on African catfish (Clarias gariepinus). Gyrodactylus was identified using median hook morphology and by sequencing the nuclear ribosomal DNA internal transcribed spacer (ITS) 1 and 2. Methods of this study included of sampling, microscopic examination, morphometric measurement and analysis, DNA extraction, PCR amplification, visualization, sequensing, and data analyses. The morphometric analysis of Gyrodactylus specimens reported as body length 850,00 ± 246,22 (500?1150) μm, body width 116,36 ± 19,30 (80-155) μm, pharynx length 52,50 ± 3,54 (50-55) μm, pharynx width 48,75 ± 1,77 (47,5-50) μm, opisthaptor length 56,98 ± 8,24 (44-75) μm, opisthaptor width 115,12 ± 18,17 (90-150) μm, hamulus total length 96,37 ± 7,10 (75-110) μm, hamulus point length 50,29 ± 5,72 (40-62,5) μm, hamulus shaft length 55,15 ± 6,69 (37?70) μm, hamulus root length 43,80 ± 6,16 (32-55) μm, hamulus aperture distance 31,15 ± 6,91 (24-50) μm, marginal hook total length 30,00 ± 3,10 (26-35) μm, marginal hook sickle length 5,13 ± 1,53 (3,2-7,5) μm and marginal hook shaft length 24,87 ± 2,23 (22,80-29) μm. PCR analysis showed an expected band of 1.009 bp-1.014 nucleotides in length on Gyrodactylus sp. DNA sample. Phylogenetic analysis showed Gyrodactylus sp.was closely related to Gyrodactylus rysavyi species with 99% similarity. Based on morphometric and molecular characterization, Gyrodactylus sp. specimens were described as Gyrodactylus rysavyi."

"Infeksi virus dengue merupakan masalah serius dengan angka kejadian yang terus meningkat setiap tahun dan hampir separuh populasi dunia beresiko terinfeksi. Infeksi sekunder virus dengue seringkali dihubungkan dengan tingkat keparahan penyakit yang ditimbulkan. Oleh karenanya sangat penting untuk dapat membedakan infeksi primer dan sekunder virus dengue. Uji Hi merupakan uji serologi yang direkomendasikan oleh badan kesehatan dunia (World Health Organization/WHO) untuk membedakan tipe infeksi tersebur. Namun selain secara teknis rnempunyai banyak kekurangan, uji ini juga seringkali kurang tepat dalam mengklasifikasikan antara infeksi primer dengan sekunder. Studi ini dilakukan untuk mengevaluasi performa uji HI dalam membedakan infeksi primer dan sekunder yaitu dengan membandingkan uji tersebut dengan PRNT. Penelitian ini juga mengeva1uasi performa ELISA lgG sebagai kandidat metode altematif. Dari 19 kasus infeksi primer berdasarkan PRNT, semua kasus (100%) juga ditetapkan sebagai infeksi primer dengan Hi dan ELISA lgG. Namun dari 73 kasus infeksi sekunder. hasil HI yang bersesuaian dengan PRNT hanya 31 5% sementara EUSA lgG sebanyak 98,6%. Dapat dikatakan HI merniliki performa yang baik dalam menentukan infeksi primer tetapi kurang baik pada infeksi sekunder. AnalisB; statistik juga memperkuat perbedaan performa uji HI dan ELISA tersebut dengan nilai p=O (p1280. Tipe infeksi pada titer H1 antara 160-640 tidak dapat didefinisikan.

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Dengue infections have become a global concern since its increasing incidence with almost half of world's population at risk. Secondary or multiple dengue virus infection is often implicated in the severity of the diseases. Therefore, discriminating dengue infection between primary versus secondary is very important. World Health Organization recommends hem-agglutination inhibition (HI) assay as the reference test to distinguish the infection. But besides its technical drawbacks, HI interpretations often misclassified between primary and secondary. In this study, we try to evaluate HI performance by comparing the assay with Plaque Reduction Neutralization Test (PRNT). We also evaluate enzyme linked immunosorbent assay (ELISA) lgG perfonnance as suggested alternative method. Of 19 primary infection cases determined by PRNT, all of them (100"/o) also defined as primary infection by both HI and ELISA lgG. From 72 of secondary infection cases, only 31.5 % of HI result that had agreement with PRNT, meanwhile ELISA lgG 98.6%. In this case, we found that HI is good in determination of primary but poor in secondary infection. Statistical analysis revealed that HI and ELISA IgG performance is significantly different with p O (p"