Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
Latar Belakang: Fibrosis hati disebabkan cedera hati kronis akan menjadi sirosis. Vesikel ekstraseluler (VE) dan Hepatocyte Growth Factor (HGF) banyak dipelajari sebagai terapi fibrosis dan regenerasi hati. Penelitian ini memanfaatkan kombinasi VE dan recombinant human-HGF ( rh-HGF) sebagai terapi alternatif fibrosis hati pada model tikus ligasi duktus bilier (LDB). Metode: Sebelas tikus Sprague Dawley (SD) menjalani LDB, 5 tikus kontrol dan 6 tikus mendapat perlakuan injeksi VE 150 uL dan rh-HGF 0,1 mg intravena sejak 3 minggu pasca LDB, selama 7 hari. Satu tikus kontrol diterminasi 3 minggu pasca LDB sebagai data dasar. Tikus-tikus kelompok kontrol dan perlakuan diterminasi pada 1 hari dan 2 minggu setelah injeksi terakhir. Dilakukan penilaian skor Laennec hati serta kadar HGF, alanine aminotransferase (ALT) dan aspartate aminotransferase (AST). Hasil: Histopatologi 3 minggu pasca LDB menunjukkan skor Laennec 2. Skor fibrosis kelompok kontrol (KK) dan kelompok perlakuan (KP) 1 minggu dan 2 minggu pasca injeksi VE dan rh-HGF seluruhnya dengan skor 2. Kadar HGF pada KP lebih rendah secara signifikan dibandingkan dengan KK 1 hari pasca injeksi terakhir (1,35+0,06 vs 1,53+0,06; p<0,001), semakin menurun setelah 2 minggu pasca injeksi terakhir namun tidak bermakna secara statistik 0,83 (0,73-0,84) vs 0,76 (0,73-0,80) p=0,248). Kadar AST 1 hari pasca injeksi terakhir; KK 1,66+0,05 KP 0,91+0,12 debgan p = 0,001. Setelah 2 minggu pasca injeksi; kadar AST pada kedua kelompok menurun 1,12 (1,11-1,22) vs (0,96+0,03); p=0,021). Kadar ALT pada kelompok perlakuan lebih rendah secara signifikan pada 1 hari pasca injeksi dan 2 minggu pasca injeksi dengan nilai p<0,001 dan 0,033a ......Background: Fibrosis of the liver due to a chronic liver injury will become cirrhosis at the end-stage. The Extracellular Vesicles (EV) and hepatocyte growth factor (HGF) are recently learned as much as fibrosis and liver regeneration therapy. This study aims to know the result of using a combination of EV and recombinant human HGF (rh-HGF) as an alternative therapy due to liver fibrosis on the rat bile duct ligation (BDL) model. Methods: Eleven BDL Sprague Dawley (SD) were divided into two groups, five mice as the untreated control group and six mice as the treatment group was getting an EV 150 ul and rh-hgf 0.1 mg intravenous injection three weeks after BDL, for seven days. One control rat is expanded three weeks after BDL as baseline data. The control and treatment group mice were projected at day one and two weeks after the final injection. This study was assessed from liver fibrosis by using Laennec score, alanine aminotransferase (ALT), aspartate aminotransferase (AST), and Hepatocyte Growth Factor (HGF) level. Results: Scoring of histopathology by using the Laennec score at 3 weeks after BDL was 2. Meanwhile scoring of fibrosis of the control group and treatment group at 1 week and 2 weeks after ve and rh-hgf injection were 2. HGF level of the treatment group was lower significantly than control group at day 1 after last injection (1,35+0,06 vs 1,53+0,06; p<0,001), and within 2 weeks, the number of HGF levels decreased but statistically insignificant; 0,83 (0,73-0,84) vs 0,76 (0,73-0,80) p=0,248). AST level at day 1 after last injection; control group vs treatment group ;1,66+0,05 vs 0,91+0,12, p value = 0,001. 2 weeks after injection; AST level for both group were become lower 1,12 (1,11-1,22) vs (0,96+0,03); p=0,021), and ALT level on treatment group was significantly lower at day 1 and 2 weeks after injection with p value <0,001 and 0, 033a

Abstrak :

Pendahuluan: Konsumsi alkohol dalam jangka panjang dapat berakibat pada fibrosis hati. Fibrosis hati ditandai oleh matriks ekstraseluler yang berlebihan. Alkohol akan mengaktifkasi sel stelata hepatik (HSC) yang memegang peran utama dalam fibrosis hati. Saat ini, tidak ada standar manajemen untuk fibrosis hati. Alfa mangostin telah dilaporkan memiliki aktivitas antioksidan pada steatosis hati, namun aktivitas antioksidannya pada fibrosis hati masih belum diketahui. Penelitian ini menggunakan alfa mangostin untuk mengetahui pengaruhnya terhadap ekspresi mRNA antioksidan, MnSOD dan GPx, pada HSC yang diinduksi asetaldehida.

Metode: Penelitian ini merupakan eksperimen in-vitro yang menggunakan galur sel stelata hepatik-LX2 dengan 6 kelompok perlakuan: kelompok yang tidak diobati, yang mendapat perlakuan asetaldehida, asetaldehida dan sorafenib, asetaldehida dan alfa mangostin 10 µM, asetaldehida dan alfa mangostin 20 µM, dan alfa mangostin 10 µM. Ekspresi mRNA MnSOD dan GPx dari RNA diukur dengan mesin qRT PCR.

Hasil: Alfa mangostin 10 μM meningkatkan ekspresi mRNA GPx secara signifikan (p<0,05), namun tidak mempengaruhi ekspresi mRNA MnSOD. Alfa mangostin 20 µM meningkatkan ekspresi mRNA dari MnSOD dan GPx secara signifikan (p<0,05). Peningkatan ekspresi mRNA MnSOD dan GPx sebanding dengan peningkatan dosis alfa mangostin.

Kesimpulan: Alpha mangostin meningkatkan kadar antioxidan, MnSOD dan GPx, dalam model HSC yang diinduksi asetaldehida.

---

Background: The chronic consumption of alcohol can eventually lead to liver fibrosis. Liver fibrosis is characterized by excessive extracellular matrix. Alcohol will activate hepatic stellate cells (HSCs) which play an important role in fibrogenesis. Currently, there are no standardized treatment for liver fibrosis. Alpha mangostin has been reported to have antioxidant activity on hepatic steatosis, however its antioxidant activity on liver fibrosis is still unknown. This research will use alpha mangostin to identify its effect on the mRNA expression of antioxidant, MnSOD and GPx, in acetaldehyde-induced HSC.

Method: The research is an in vitro experiment utilizing hepatic stellate cell line – LX2 with 6 treatment groups: the untreated group, the treated groups with acetaldehyde, acetaldehyde and sorafenib, acetaldehyde and alpha mangostin 10 µM, acetaldehyde and alpha mangostin 20 µM, and alpha mangostin 10 µM. The mRNA expression of MnSOD and GPx were obtained from the RNA that was measured by qRT PCR machine.

Results: Alpha mangostin 10 µM significantly increased GPx mRNA expression (p <0,05), however it did not affect MnSOD mRNA expression. However, alpha mangostin 20 µM significantly increased the mRNA expression of MnSOD and GPx (p <0,05). The increase of the MnSOD and GPx mRNA expression is linear to the increase of alpha mangostin dose.

Conclusion: Alpha mangostin increases antioxidant, MnSOD and GPx, levels in acetaldehydeinduced HSC models.