UI - Tesis Membership :: Kembali

UI - Tesis Membership :: Kembali

Deteksi DNA adduct 8-OHDG secara in vitro dan in vivo dalam urin pasien kanker paru = Detection of DNA adduct 8-OHDG in vitro and in vivo in urine of lung cancer patients.

Dwi Endah Larasati; Budiawan, supervisor; Septelia Inawati Wanandi, supervisor; Ridla Bakri, examiner; Munawar Khalil, examiner; Antonius Herry Cahyana, examiner (Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2021)

 Abstrak

Deteksi DNA adduct dapat dijadikan sebagai pendekatan untuk mendeteksi dini risiko kanker. Salah satu produk kerusakan oksidatif DNA adalah 8-hidroksi-2’-deoksiguanosin (8-OHdG). Penelitian ini dilakukan untuk mendeteksi 8-OHdG secara in vitro dan in vivo. Studi in vitro dilakukan dengan inkubasi 2’-deoksiguanosin dengan H2O2 dan akrilamida pada variasi pH 7,4 dan 8,4 selama 24 jam dalam suhu 37 oC. Kemudian hasil inkubasi dianalisis menggunakan HPLC. Sedangkan secara in vivo dilakukan deteksi 8-OHdG dalam urin pasien kanker paru stadium III-IV, urin perokok, dan urin non perokok dengan menggunakan LCMS/MS. Pada validasi instrumen HPLC diperoleh nilai regresi linier 0,9985, nilai LOD dan LOQ sebesar 6,108 ppb dan 20,361 ppb. Sedangkan untuk LCMS/MS diperoleh nilai regresi linier sebesar 1, nilai LOD dan LOQ sebesar 1,819 ppb and 6,066 ppb. Hasil penelitian menunjukkan bahwa paparan H2O2 dan akrilamida dapat membentuk 8-OHdG. Konsentrasi 8-OHdG yang terbentuk dari inkubasi 2-deoksiguanosin dan H2O2 serta 2-deoksiguanosin, H2O2, dan akrilamida maksimum pada pH 8,4 yakni sebesar 2,151 ppm dan 2,617 ppm. 8-Hidroksi-2’-Deoksiguanosin terdeteksi dalam urin pasien kanker paru, perokok, dan non perokok masing-masing sebesar 4,668 – 19,919 ppb, 6,873 – 12,111 ppb, -0,502 – 6,578 ppb. Nilai rata-rata konsentrasi 8-OHdG dalam sampel urin pasien kanker paru, perokok dan non perokok masing-masing sebesar 9,710 ppb, 10,226 ppb, dan 3,080 ppb.

DNA adduct detection could be an approach to early detection of risk cancer. One of oxidative DNA damage products is 8-hydroxy-2’-deoxyguanosine (8-OHdG). This study was conducted to detect DNA adduct 8-OHdG in vitro and in vivo. In vitro study was started to incubate 2’-deoxyguanosine added by H2O2 and acrylamide in various pH for 24 hours at 37 oC. Then the result was analyzed with HPLC. In vivo study was conducted detection 8-OHdG in urine of lung cancer patients with stage III-IV disease, smokers and non smokers using LCMS/MS. Instrument validation (HPLC) was yielded linear regression value 0,9985, LOD and LOQ as much as 6,108 ppb and 20,361 ppb as well as validation instrument of LCMS/MS was yielded linier regression value 1, LOD and LOQ as much as 1,819 ppb and 6,066 ppb.The results of study found exposure of H2O2 to 2-deoxyguanosine induced 8-OHdG formation and the addition of acrylamide increased 8-OHdG formation. The highest 8-OHdG level obtained by incubation of 2’-deoxyguanosine and H2O2 then 2’deoxyguanosine, H2O2 and acrylamide at pH 8,4 as much as 2,151 ppm and 2,617 ppm. 8-Hydroxy-2’-Deoxyguanosine was detected in urine of lung cancer patients, smokers and non smokers respectively 4,668 – 19,919 ppb, 6,873 – 12,111 ppb, -0,502 – 6,578 ppb. The mean value of 8-hydroxy-2’-deoxyguanosine in urine of lung cancer patients, smokers and non smokers as much as 9,710 ppb, 10,226 ppb, and 3,080 ppb.

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Jenis Koleksi : UI - Tesis Membership
No. Panggil : T-pdf
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Entri tambahan-Nama badan :
Program Studi :
Subjek :
Penerbitan : Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2021
Bahasa : ind
Sumber Pengatalogan : LibUI ind rda
Tipe Konten : text
Tipe Media : computer
Tipe Carrier : online resource
Deskripsi Fisik : xvii, 58 pages : illustration + appendix
Naskah Ringkas :
Lembaga Pemilik : Universitas Indonesia
Lokasi : Perpustakaan UI
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No. Panggil No. Barkod Ketersediaan
T-pdf 15-22-48670558 TERSEDIA
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