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Dianti Kurniatami
Abstrak :
Pandemi COVID-19 yang disebabkan oleh virus SARS-CoV-2 saat ini tengah melanda seluruh dunia. Virus ini dapat menyebar dengan mudah dan cepat, oleh karena itu diperlukan metode yang cepat untuk mendeteksi virus ini, salah satunya adalah metode RT-PCR. Salah satu tahapan yang penting dari RT-PCR adalah tahap ekstraksi RNA. Tahapan ekstraksi RNA mengalami perkembangan yang pesat, salah satunya dilakukan dengan prinsip ekstraksi fasa padat. Ekstraksi fasa padat salah satunya dapat menggunakan matriks silika. Pada penelitian ini, akan dilakukan ekstraksi asam nukleat menggunakan silika hasil modifikasi dari Kaolin Bangka Belitung dan Bentonit Pacitan. Kaolin dan bentonit akan melalui tahap purifikasi agar didapatkan MMT dan Na-MMT (untuk bentonit) serta kaolin hasil purifikasi dan silika ekstraksi (untuk kaolin). Modifikasi dilakukan dengan membuat kaolin serta bentonit menjadi silica coarse yang dilakukan packing menjadi bentuk kolom ekstraksi (kolom SPE) dan cakram. Modifikasi kolom dan cakram dilakukan terhadap kit ekstraksi komersial. Melalui karakterisasi FTIR, XRD, dan SEM-EDX telah terkonfirmasi bahwa MMT, Na-MMT, kaolin purifikasi, dan silika ekstraksi telah terbentuk. Kolom SPE dan cakram yang sudah dibuat kemudian dilakukan uji performa sebelum dilakukan ekstraksi asam nukleat. Hasilnya adalah semua variasi tidak dapat dilanjutkan karena sudah mengalami kerusakan saat uji performa. Studi literatur kemudian dilakukan untuk menentukan interaksi yang terjadi antara asam nukleat dengan matriks silika dari kaolin dan bentonit. Interaksinya adalah dapat berupa interaksi elektrostatik, interaksi hidrofobik, ikatan hidrogen, pertukaran ligan, ataupun jembatan kation
The COVID-19 pandemic caused by the SARS-CoV-2 virus is currently sweeping the entire world. This virus can spread easily and quickly, therefore we need a fast method to detect this virus, one of which is the RT-PCR method. One of the important steps of RT-PCR is the extraction stage of RNA. The RNA extraction stage has experienced rapid development, one of which is carried out by the principle of solid phase extraction. One of the solid phase extraction can use a silica matrix. In this research, nucleic acid extraction will be carried out using modified silica from Kaolin Bangka Belitung and Bentonite Pacitan. Kaolin and bentonite will go through the purification stage to obtain MMT and Na-MMT (for bentonite) as well as purified kaolin and extracted silica (for kaolin). Modifications were made by making kaolin and bentonite into silica coarse which was packed into the form of an extraction column (SPE column) and discs. Column and disc modifications are made to commercial extraction kits. Through FTIR, XRD, and SEM-EDX characterization it has been confirmed that MMT, Na-MMT, purified kaolin, and extracted silica have been formed. The SPE column and the disc that have been made are then tested for performance before extracting nucleic acids. The result is that all variations cannot be continued because they were damaged during a performance test. A literature study was then carried out to determine the interactions that occur between nucleic acids and the silica matrix of kaolin and bentonite. The interactions can be in the form of electrostatic interactions, hydrophobic interactions, hydrogen bonds, ligand exchanges, or cation bridges.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
S-Pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Sibley, Charles Gald
New Haven, Connecticut: Yale University Press, 1991
598 SIB p
Buku Teks  Universitas Indonesia Library
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Yelli Yulfita
Abstrak :
Dalam penelitian ini akan membahas tentang pengembangan sistem sequencing pada kode genetik pada platform web. Sistem sequencing adalah proses untuk menentukan urutan basa nukleotida pada molekul DNA. Sistem yang dimasukkan pada input berupa empat basa nukleotida yang di translasi akan menghasilkan output berupa asam amino dan kode genetik yang di translasikan. Proses translasi pada sistem web menggunakan parameter replace. Sistem sequencing menggunakan variasi parameter sesuai dengan jenis kode genetik yang ditranslasikan. Proses konversi mengasilkan nilai rata-rata maksimum kecepatan pada web sebesar 60 fps. ......In this research, we will discuss the development of sequencing systems on genetic codes on web platforms. The sequencing system is the process of determining the sequence of nucleotide based in DNA molecules. The system entered into the input in the form of four nucleotides based that are translated will produce an output in the form of amino acids and the translated genetic code. The translation process on the web system uses the replace parameter. The sequencing system uses variations of parameters according to the type of genetic code being translated. The conversion process produces an average value of maximum speed on the web of 60 fps.
Depok: Fakultas Teknik Universitas Indonesia, 2020
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Ulfah Suryani
Abstrak :
[ABSTRAK
Latar belakang. Hepatitis B merupakan salah satu masalah kesehatan yang serius, diperkirakan lebih dari 2 milyar orang didunia telah terinfeksi virus hepatitis B (VHB). Dari jumlah ini kira-kira 360 juta orang mengalami infeksi khronis. Kematian terutama disebabkan karena sirosis hepatis dan karsinoma hepatoseluler. Salah satu upaya pencegahan penularan infeksi VHB adalah uji saring darah donor terhadap hepatitis B surface antigen (HBsAg) yang merupakan pemeriksaan skrinning yang dilakukan oleh Unit Transfusi Darah (UTD) di negara berkembang seperti Indonesia. Banyak peneliti membuktikan bahwa darah HBsAg negatif masih berpotensi menularkan infeksi VHB. Untuk itu meningkatkan keamanan darah, beberapa negara menambahkan parameter pemeriksaan antibodi terhadap hepatits B core (anti-HBc) sebagai petanda paparan terhadap infeksi VHB dan pemeriksaan antibodi terhadap hepatitis B surface (anti-HBs) sebagai tanda respon imun terhadap infeksi VHB. Dengan berkembangnya teknologi biologi molekuler, masa jendela infeksi VHB dengan seronegatif dapat di ketahui lebih cepat melalui deteksi DNA VHB dengan metode Nucleic Acid Test (NAT) multipleks yang dilanjutkan dengan NAT discriminatory. Beberapa penelitian terdahulu menunjukkan, didapatnya DNA VHB pada spesimen darah donor yang seronegatif dengan metoda NAT. Darah dengan HBsAg negatif, DNA VHB positif dengan atau tanpa anti-HBc dan atau anti-HBs merupakan darah asal donor dengan Hepatitis B Occult (HBO). Prevalensi donor dengan HBO di Indonesia berkisar antara 8- 10%. Metodologi. Penelitian ini menggunakan desain potong lintang (cross sectional) yang dilakukan di UTDP dan Lembaga Biologi Molekul Eijkman, dengan jumlah sampel 4.973 asal subyek donor darah dari 4 UTD daerah DKI, Kota Tanggerang,kota Depok dan Kabupaten Tanggerang. Terhadap sampel penelitian dilakukan pemeriksaan serologis HBsAg,anti-HBc,anti-HBs, NAT, dan PCR kuantitatif dan kualitatif, selanjutnya pada sampel yang HBsAg negatif, NAT positif dan didapatkan hasil PCR kuantitatif positif dilakukan pemeriksaan lanjutan sequencing asam amino untuk mengetahui ada tidaknya mutan HBsAg penyebab lolosnya deteksi serologi HBsAg oleh reagensia HBsAg yang digunakan untuk uji saring darah donor. Hasil. Didapatkan hanya 20 subjek (0,40%) mempunyai hasil HBsAg negatif dan NAT positif multipleks, dan hanya 16 subyek (80%) HBsAg negatif dan NAT discrimenatory positif. Lebih lanjut hasil pemeriksaan anti-HBc negatif dan anti- HBs positif/negatif didapatkan hanya1 subyek (6,25%), anti-HBc positif dan anti- Hbs negatif didapatkan 9 subyek (56,25%), hasil pemerksaan anti-Hbc dan anti- HBs positif 5 subyek (31,25%). Lebih lanjut dilakukan pemeriksaan PCR kualitatif dan didapatkan 3 subyek (18,75%) tidak terdeteksi, , 6 (37,5%) subyek menunjukkan hasil viral load yang low detection (dibawah sensitivitas alat), dan 7 subyek (43,75%) menunjukkan hasil viral load dapat di ketahui. Pada pemeriksaan PCR kualitatif dan sequencing didapatkan 2 subyek (28,57%) ditemukan mutasi pada gen S pada posisi 143 dimana terjadi subsitusi asam amino T143M.
ABSTRACT
Background. Hepatitis B is one of the most serious health problem. It is estimated that more than 2 bilion people have been infected by this virus, of which 360 milion are chronically infected with severe and fatal risk especially of cirrosis and hepatocellular carcinoma. One of the main ways to prevent transfusion transmitted HBV infection is blood screening for HBsAg. However, many studies have proven that HBsAg negative blood can still be infection. Therefore to enhance blood safety same countries have added antibody parameters in blood screening of donors – antibody for hepatitis B core antigen (anti-HBc) as marker for HBV infection and antibody for hepatitis B surface antigen (anti-HBs) as marker for immunological response to HBV infection. And with the development of molecular biology technology, HBV infection can be knowing faster in seronegative windows period with HBV DNA examination inspection by methods Nucleic Acid Test (NAT) multiplex and discrimenatory. In fact the results of seronegative blood is still there HBV virus with NAT, and this result we can called with the Occult hepatitis B (HBO). Prevalence of donors with HBO ranges 8- 10% in Indonesia. This study aims to determine the efectivity analized by NAT method blood donor with HBO to see continuity with the examination of anti-HBc, anti-HBs, viral load, and the cause of the HBO that mutations in the gene encoding HBsAg. Methodology. This study used a cross-sectional design (cross-sectional) conducted in UTDP and Eijkman Institute for Molecular Biology, with a sample of 4,973 sampless blood bloods donor from 4 units of blood transfusion area of Jakarta, Tangerang City, Depok and Bekasi district. Against sample serological examination HBsAg, anti-HBc, anti-HBs, NAT, quantitative and qualitative PCR, then samples were HBsAg negative, positive NAT and quantitative PCR positive results obtained further investigation amino acid sequencing to determine whether there is a mutant HBsAg cause serological detection of HBsAg escape by HBsAg reagents used for screening of blood donors Result. There was 20 samples (0.40%) had results of HBsAg negative and positive NAT multiplex, and only 16 samples (80%) HBsAg negative and positive discrimenatory NAT. Furthermore, the results of the examination of anti-HBc and anti-HBs negative positive / negative obtained only 1 samples (6.25%), anti-HBc positive and negative anti-Hbs obtained 9 samples (56.25%), and anti-HBc , anti- HBs positive are 5 samples (31.25%). and then , qualitative PCR examination and had 3 samples (18.75%), is not detected, 6 (37.5%) samples, and some samples showed a low viral load results detection (sensitivity under tools value), and 6 samples (43.75%) shows viral load is positive. In qualitative PCR and sequencing obtained 2 samples (28.57%) found a mutation in the S gene at position 143 where there T143M amino acid substitution.;Background. Hepatitis B is one of the most serious health problem. It is estimated that more than 2 bilion people have been infected by this virus, of which 360 milion are chronically infected with severe and fatal risk especially of cirrosis and hepatocellular carcinoma. One of the main ways to prevent transfusion transmitted HBV infection is blood screening for HBsAg. However, many studies have proven that HBsAg negative blood can still be infection. Therefore to enhance blood safety same countries have added antibody parameters in blood screening of donors – antibody for hepatitis B core antigen (anti-HBc) as marker for HBV infection and antibody for hepatitis B surface antigen (anti-HBs) as marker for immunological response to HBV infection. And with the development of molecular biology technology, HBV infection can be knowing faster in seronegative windows period with HBV DNA examination inspection by methods Nucleic Acid Test (NAT) multiplex and discrimenatory. In fact the results of seronegative blood is still there HBV virus with NAT, and this result we can called with the Occult hepatitis B (HBO). Prevalence of donors with HBO ranges 8- 10% in Indonesia. This study aims to determine the efectivity analized by NAT method blood donor with HBO to see continuity with the examination of anti-HBc, anti-HBs, viral load, and the cause of the HBO that mutations in the gene encoding HBsAg. Methodology. This study used a cross-sectional design (cross-sectional) conducted in UTDP and Eijkman Institute for Molecular Biology, with a sample of 4,973 sampless blood bloods donor from 4 units of blood transfusion area of Jakarta, Tangerang City, Depok and Bekasi district. Against sample serological examination HBsAg, anti-HBc, anti-HBs, NAT, quantitative and qualitative PCR, then samples were HBsAg negative, positive NAT and quantitative PCR positive results obtained further investigation amino acid sequencing to determine whether there is a mutant HBsAg cause serological detection of HBsAg escape by HBsAg reagents used for screening of blood donors Result. There was 20 samples (0.40%) had results of HBsAg negative and positive NAT multiplex, and only 16 samples (80%) HBsAg negative and positive discrimenatory NAT. Furthermore, the results of the examination of anti-HBc and anti-HBs negative positive / negative obtained only 1 samples (6.25%), anti-HBc positive and negative anti-Hbs obtained 9 samples (56.25%), and anti-HBc , anti- HBs positive are 5 samples (31.25%). and then , qualitative PCR examination and had 3 samples (18.75%), is not detected, 6 (37.5%) samples, and some samples showed a low viral load results detection (sensitivity under tools value), and 6 samples (43.75%) shows viral load is positive. In qualitative PCR and sequencing obtained 2 samples (28.57%) found a mutation in the S gene at position 143 where there T143M amino acid substitution.;Background. Hepatitis B is one of the most serious health problem. It is estimated that more than 2 bilion people have been infected by this virus, of which 360 milion are chronically infected with severe and fatal risk especially of cirrosis and hepatocellular carcinoma. One of the main ways to prevent transfusion transmitted HBV infection is blood screening for HBsAg. However, many studies have proven that HBsAg negative blood can still be infection. Therefore to enhance blood safety same countries have added antibody parameters in blood screening of donors – antibody for hepatitis B core antigen (anti-HBc) as marker for HBV infection and antibody for hepatitis B surface antigen (anti-HBs) as marker for immunological response to HBV infection. And with the development of molecular biology technology, HBV infection can be knowing faster in seronegative windows period with HBV DNA examination inspection by methods Nucleic Acid Test (NAT) multiplex and discrimenatory. In fact the results of seronegative blood is still there HBV virus with NAT, and this result we can called with the Occult hepatitis B (HBO). Prevalence of donors with HBO ranges 8- 10% in Indonesia. This study aims to determine the efectivity analized by NAT method blood donor with HBO to see continuity with the examination of anti-HBc, anti-HBs, viral load, and the cause of the HBO that mutations in the gene encoding HBsAg. Methodology. This study used a cross-sectional design (cross-sectional) conducted in UTDP and Eijkman Institute for Molecular Biology, with a sample of 4,973 sampless blood bloods donor from 4 units of blood transfusion area of Jakarta, Tangerang City, Depok and Bekasi district. Against sample serological examination HBsAg, anti-HBc, anti-HBs, NAT, quantitative and qualitative PCR, then samples were HBsAg negative, positive NAT and quantitative PCR positive results obtained further investigation amino acid sequencing to determine whether there is a mutant HBsAg cause serological detection of HBsAg escape by HBsAg reagents used for screening of blood donors Result. There was 20 samples (0.40%) had results of HBsAg negative and positive NAT multiplex, and only 16 samples (80%) HBsAg negative and positive discrimenatory NAT. Furthermore, the results of the examination of anti-HBc and anti-HBs negative positive / negative obtained only 1 samples (6.25%), anti-HBc positive and negative anti-Hbs obtained 9 samples (56.25%), and anti-HBc , anti- HBs positive are 5 samples (31.25%). and then , qualitative PCR examination and had 3 samples (18.75%), is not detected, 6 (37.5%) samples, and some samples showed a low viral load results detection (sensitivity under tools value), and 6 samples (43.75%) shows viral load is positive. In qualitative PCR and sequencing obtained 2 samples (28.57%) found a mutation in the S gene at position 143 where there T143M amino acid substitution.;Background. Hepatitis B is one of the most serious health problem. It is estimated that more than 2 bilion people have been infected by this virus, of which 360 milion are chronically infected with severe and fatal risk especially of cirrosis and hepatocellular carcinoma. One of the main ways to prevent transfusion transmitted HBV infection is blood screening for HBsAg. However, many studies have proven that HBsAg negative blood can still be infection. Therefore to enhance blood safety same countries have added antibody parameters in blood screening of donors – antibody for hepatitis B core antigen (anti-HBc) as marker for HBV infection and antibody for hepatitis B surface antigen (anti-HBs) as marker for immunological response to HBV infection. And with the development of molecular biology technology, HBV infection can be knowing faster in seronegative windows period with HBV DNA examination inspection by methods Nucleic Acid Test (NAT) multiplex and discrimenatory. In fact the results of seronegative blood is still there HBV virus with NAT, and this result we can called with the Occult hepatitis B (HBO). Prevalence of donors with HBO ranges 8- 10% in Indonesia. This study aims to determine the efectivity analized by NAT method blood donor with HBO to see continuity with the examination of anti-HBc, anti-HBs, viral load, and the cause of the HBO that mutations in the gene encoding HBsAg. Methodology. This study used a cross-sectional design (cross-sectional) conducted in UTDP and Eijkman Institute for Molecular Biology, with a sample of 4,973 sampless blood bloods donor from 4 units of blood transfusion area of Jakarta, Tangerang City, Depok and Bekasi district. Against sample serological examination HBsAg, anti-HBc, anti-HBs, NAT, quantitative and qualitative PCR, then samples were HBsAg negative, positive NAT and quantitative PCR positive results obtained further investigation amino acid sequencing to determine whether there is a mutant HBsAg cause serological detection of HBsAg escape by HBsAg reagents used for screening of blood donors Result. There was 20 samples (0.40%) had results of HBsAg negative and positive NAT multiplex, and only 16 samples (80%) HBsAg negative and positive discrimenatory NAT. Furthermore, the results of the examination of anti-HBc and anti-HBs negative positive / negative obtained only 1 samples (6.25%), anti-HBc positive and negative anti-Hbs obtained 9 samples (56.25%), and anti-HBc , anti- HBs positive are 5 samples (31.25%). and then , qualitative PCR examination and had 3 samples (18.75%), is not detected, 6 (37.5%) samples, and some samples showed a low viral load results detection (sensitivity under tools value), and 6 samples (43.75%) shows viral load is positive. In qualitative PCR and sequencing obtained 2 samples (28.57%) found a mutation in the S gene at position 143 where there T143M amino acid substitution.;Background. Hepatitis B is one of the most serious health problem. It is estimated that more than 2 bilion people have been infected by this virus, of which 360 milion are chronically infected with severe and fatal risk especially of cirrosis and hepatocellular carcinoma. One of the main ways to prevent transfusion transmitted HBV infection is blood screening for HBsAg. However, many studies have proven that HBsAg negative blood can still be infection. Therefore to enhance blood safety same countries have added antibody parameters in blood screening of donors – antibody for hepatitis B core antigen (anti-HBc) as marker for HBV infection and antibody for hepatitis B surface antigen (anti-HBs) as marker for immunological response to HBV infection. And with the development of molecular biology technology, HBV infection can be knowing faster in seronegative windows period with HBV DNA examination inspection by methods Nucleic Acid Test (NAT) multiplex and discrimenatory. In fact the results of seronegative blood is still there HBV virus with NAT, and this result we can called with the Occult hepatitis B (HBO). Prevalence of donors with HBO ranges 8- 10% in Indonesia. This study aims to determine the efectivity analized by NAT method blood donor with HBO to see continuity with the examination of anti-HBc, anti-HBs, viral load, and the cause of the HBO that mutations in the gene encoding HBsAg. Methodology. This study used a cross-sectional design (cross-sectional) conducted in UTDP and Eijkman Institute for Molecular Biology, with a sample of 4,973 sampless blood bloods donor from 4 units of blood transfusion area of Jakarta, Tangerang City, Depok and Bekasi district. Against sample serological examination HBsAg, anti-HBc, anti-HBs, NAT, quantitative and qualitative PCR, then samples were HBsAg negative, positive NAT and quantitative PCR positive results obtained further investigation amino acid sequencing to determine whether there is a mutant HBsAg cause serological detection of HBsAg escape by HBsAg reagents used for screening of blood donors Result. There was 20 samples (0.40%) had results of HBsAg negative and positive NAT multiplex, and only 16 samples (80%) HBsAg negative and positive discrimenatory NAT. Furthermore, the results of the examination of anti-HBc and anti-HBs negative positive / negative obtained only 1 samples (6.25%), anti-HBc positive and negative anti-Hbs obtained 9 samples (56.25%), and anti-HBc , anti- HBs positive are 5 samples (31.25%). and then , qualitative PCR examination and had 3 samples (18.75%), is not detected, 6 (37.5%) samples, and some samples showed a low viral load results detection (sensitivity under tools value), and 6 samples (43.75%) shows viral load is positive. In qualitative PCR and sequencing obtained 2 samples (28.57%) found a mutation in the S gene at position 143 where there T143M amino acid substitution., Background. Hepatitis B is one of the most serious health problem. It is estimated that more than 2 bilion people have been infected by this virus, of which 360 milion are chronically infected with severe and fatal risk especially of cirrosis and hepatocellular carcinoma. One of the main ways to prevent transfusion transmitted HBV infection is blood screening for HBsAg. However, many studies have proven that HBsAg negative blood can still be infection. Therefore to enhance blood safety same countries have added antibody parameters in blood screening of donors – antibody for hepatitis B core antigen (anti-HBc) as marker for HBV infection and antibody for hepatitis B surface antigen (anti-HBs) as marker for immunological response to HBV infection. And with the development of molecular biology technology, HBV infection can be knowing faster in seronegative windows period with HBV DNA examination inspection by methods Nucleic Acid Test (NAT) multiplex and discrimenatory. In fact the results of seronegative blood is still there HBV virus with NAT, and this result we can called with the Occult hepatitis B (HBO). Prevalence of donors with HBO ranges 8- 10% in Indonesia. This study aims to determine the efectivity analized by NAT method blood donor with HBO to see continuity with the examination of anti-HBc, anti-HBs, viral load, and the cause of the HBO that mutations in the gene encoding HBsAg. Methodology. This study used a cross-sectional design (cross-sectional) conducted in UTDP and Eijkman Institute for Molecular Biology, with a sample of 4,973 sampless blood bloods donor from 4 units of blood transfusion area of Jakarta, Tangerang City, Depok and Bekasi district. Against sample serological examination HBsAg, anti-HBc, anti-HBs, NAT, quantitative and qualitative PCR, then samples were HBsAg negative, positive NAT and quantitative PCR positive results obtained further investigation amino acid sequencing to determine whether there is a mutant HBsAg cause serological detection of HBsAg escape by HBsAg reagents used for screening of blood donors Result. There was 20 samples (0.40%) had results of HBsAg negative and positive NAT multiplex, and only 16 samples (80%) HBsAg negative and positive discrimenatory NAT. Furthermore, the results of the examination of anti-HBc and anti-HBs negative positive / negative obtained only 1 samples (6.25%), anti-HBc positive and negative anti-Hbs obtained 9 samples (56.25%), and anti-HBc , anti- HBs positive are 5 samples (31.25%). and then , qualitative PCR examination and had 3 samples (18.75%), is not detected, 6 (37.5%) samples, and some samples showed a low viral load results detection (sensitivity under tools value), and 6 samples (43.75%) shows viral load is positive. In qualitative PCR and sequencing obtained 2 samples (28.57%) found a mutation in the S gene at position 143 where there T143M amino acid substitution.]
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2014
T58764
UI - Tesis Membership  Universitas Indonesia Library
cover
Melati Arum Satiti
Abstrak :
Latar belakang: Pasien dengan hemofilia dan Von Willebrand (VWD) memiliki risiko infeksi terkait transfusi, salah satunya adalah infeksi hepatitis C (HCV). Skrining darah donor terbaru adalah nucleic acid testing (NAT) dengan window period 3 hari. Berdasarkan rekapitulasi pasien hemofilia dewasa di RS Cipto Mangunkusumo tahun 2012, ditemukan 38% mengalami infeksi HCV dan dua diantaranya sudah didiagnosis dengan sirosis hati. Pengobatan infeksi HCV secara dini dapat menurunkan risiko sirosis hati. Namun saat ini belum ada data mengenai proporsi infeksi HCV pada hemofilia dan VWD anak yang menggunakan NAT dan tidak menggunakan NAT untuk skrining darah donor. Tujuan: Mengetahui proporsi infeksi HCV pada pasien hemofilia dan VWD anak yang tidak menggunakan skrining NAT dan yang menggunakan skrining NAT. Metode: Penelitian ini menggunakan desain kohort retrospektif yang dilakukan terhadap pasien hemofilia dan Von Willebrand (VWD) anak dengan riwayat transfusi komponen darah. Subyek penelitian dieksklusi bila memiliki riwayat penggunaan jarum suntik bergantian dan ibu dengan riwayat infeksi HCV C. Subyek penelitian dibagi menjadi kelompok tidak menggunakan skrining NAT dan menggunakan skrining NAT. Kemudian dilakukan pemeriksaan anti HCV pada tiap kelompok. Subyek dengan hasil anti HCV reaktif menjalani pemeriksaan HCV RNA. Kemudian dilakukan analisa risiko relatif (RR) antara penggunaan skrining NAT terhadap proporsi infeksi HCV. Hasil: Studi dilakukan terhadap 108 subyek penelitian mendapatkan proporsi anti HCV reaktif pada kelompok yang tidak menggunakan skrining NAT sebesar 3,3% (3/91) dan pada kelompok yang mengguanakan skrining NAT sebesar 0% (0/17). Analisis hubungan antara penggunaan skrining NAT dan anti HCV reaktif ditemukan hasil RR = 1,034 (IK95% 0,996-1,074) dengan nilai P 0,448 dan kekuatan penelitian 8,3%. Hasil pemeriksaan HCV RNA tidak ditemukan virus pada kedua subyek dengan anti HCV reaktif. Simpulan: Proporsi anti HCV reaktif pada kelompok dengan riwayat transfusi komponen darah yang tidak menggunakan skrining NAT lebih besar dibandingkan dengan kelompok yang menggunakan skrining NAT. Namun hasil pemeriksaan HCV RNA tidak ditemukan virus pada seluruh subyek dengan anti HCV reaktif. Title of the article : Hepatitis C Infection Related to Blood Transfusion in Children with Hemofilia and Von Willebrand Before and After the Implementation of Nucleic Acid Testing as the Method of Blood Donor Screening. ......Background: Patient with hemophilia and Von Willebrand (VWD) have an increased risk of acquiring transfusion transmitted infection (TTI). The latest technology of blood donor screening method were using nucleic acid testing (NAT). In 2012, there were 38% of adult with hemophilia acquiring hepatitis C infection in Cipto Mangunkusumo hospital and two of them had developed liver cirrhosis. Early initiation of therapy may prevent the progression of hepatitis C (HCV) infection into liver cirrhosis. Currently, there is no data regarding the incidence of HCV infection in children with hemophilia and VWD before and after the implementation of NAT for blood donor screening. Aim: To determine the incidence of HCV infection in children with hemophilia and VWD who were not using NAT compares to the one who were using NAT as their blood screening method. Method: It is a cohort retrospective study of children with hemophilia and VWD with history of blood transfusion. The exclusion criteria were personal history of sharing needle and having mother with history of HCV infection. Subjects were divided into the group of subjects who were using NAT and not using NAT for blood donor screening method. Anti HCV examination were performed on each group. HCV RNA examination were carried out only on subjects with reactive anti HCV result. Relative risk (RR) of using NAT related to the incidence of HCV infection were then calculated. Results: Study in 108 subjects reported the incidence of reactive anti HCV in a group who were not using NAT around 2% (2/91) compared to other group who were using NAT around 0% (0/17). The association between NAT implementation and the incidence of HCV infection showed RR = 1.022 (CI95% 0.991-1.054) with P value of 0.54 and power of 8.4%. HCV RNA examination showed no virus were found on both subjects with reactive anti HCV. Conclusion: The incidence of reactive anti HCV was higher in the group who were not using NAT compared to the other group who were using NAT as their blood screening method. However, HCV RNA showed no virus were found on all subjects with reactive anti HCV. It is recommended to consider NAT as screening method due to 3 subjects were found to have history of hepatitis C infection in current study.
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2019
T57611
UI - Tesis Membership  Universitas Indonesia Library
cover
Stuart MacNeill, editor
Abstrak :
High-fidelity chromosomal DNA replication underpins all life on the planet. In humans, there are clear links between chromosome replication defects and genome instability, genetic disease and cancer, making a detailed understanding of the molecular mechanisms of genome duplication vital for future advances in diagnosis and treatment. Building on recent exciting advances in protein structure determination, the book will take the reader on a guided journey through the intricate molecular machinery of eukaryotic chromosome replication and provide an invaluable source of information, ideas and inspiration for all those with an interest in chromosome replication, whether from a basic science, translational biology and medical research perspective.
Dordrecht: [, Springer], 2012
e20417323
eBooks  Universitas Indonesia Library
cover
Abstrak :
Despite a half century of structural, biophysical and biochemical investigations of ribonucleic acids, they are still mysterious. RNAs stand at fertile crossroads of disciplines, integrating concepts from genomics, proteomics, dynamics as well as biochemistry and molecular biology. From 20 years it is clear, that genetic regulation of eukaryotic organisms has been misunderstood for the last years that the expression of genetic information is effected only by proteins. Basic understanding of nucleic acids has enhanced our foundation to probe novel biological functions. This is especially evident for RNA molecules whose functionality, maturation, and regulation require formation of correct secondary structure through encoded base-pairing interactions.
Berlin: Springer, 2012
e20418025
eBooks  Universitas Indonesia Library
cover
Bindereif, Albrecht, editor
Abstrak :
This volume covers the most important aspects of biosynthesis, processing, and functions of RNA in trypanosomes, ranging from transcription to RNA editing, mRNA splicing/translation/turnover, processing of transfer and ribosomal RNA, RNA interference, and current transcriptome-wide analyses. Recent progress in RNA-focused research in trypanosomatids promises to yield novel insights into trypanosome-specific features, as well as to reveal in the process new potential therapeutic strategies for combating these parasitic diseases.
Berlin: [Springer, ], 2012
e20417748
eBooks  Universitas Indonesia Library