Sri Herwiyanti, Sri
Bagian Histologi dan Biologi Sel, Fakultas Kedokteran, Universitas Gadjah Mada

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EFFECT OF 1,2-EPOXY-3[3-3[3,4-DIMETOXYI-PHENIL]-4H-1-BENZOPIRAN-4-ON] PROPANE (EPI) ON SIRTUIN-1 AND NUCLEAR FACTOR-κB EXPRESSION OF MAMMARY TUMORS INDUCED IN SPRAGUE DAWLEY RATS BY DMBA Nurung, Ayyub Harly; Herwiyanti, Sri; Paramita, Dewi Kartikawati
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 48, No 3 (2016)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1108.71 KB) | DOI: 10.19106/JMedSci004803201602

Abstract

ABSTRACT The main factors contribute to breast cancer development is the combination of exogenous and endogenous factors. Endogenous factors include both SIRT1 and NF-kB. Exogenous factor used in this research is 7.12 dimethylbenz(a)anthracene (DMBA). 1,2-epoxy-3[3- 3[3,4-dimetoxy-phenil]-4h-1-benzophiran-4-on] propane (EPI) is a derivative of isoflavone generate from clove leaf oil. To examine the effect of EPI on SIRT1 and NF-kB expression in DMBA-induced Sprague Dawley (SD) rats, and the correlation between SIRT1 and NFkB expressions. Tissue generated form 35 Sprague Dawley female rats aged 2 weeks old were used in this study. Those rats were divided into 7 groups (5 rats/group), namely normal control group; corn oil group; DMBA group; EPI treated groups with 1 mg/kgBW (EPI I), 2 mg/kgBW (EPI II), and 4 mg/kgBW (EPI III), respectively; and doxorubicin group. EPI and doxorubicin were administered from 1st until 15th week, while DMBA were administered from 3rd until 9th week. The paraffin block was prepared from all breast organ of the rats that terminated at the end of week 15th. Examination of SIRT1 and NF-kB expression was performed using light microscope at 400x magnifications, after immunohistochemistry (IHC) staining. Expression level of SIRT1 and NF-kB were analyzed using IHC-profiler plug-in in ImageJ software. SIRT1 and NF-kB expression in EPI treated groups were not significantly different with the one in Doxorubicin group, but lower than DMBA group (p=0.000). There was a positive correlation between SIRT1 and NF-kB expression (p=0.001; r=0.773) in EPI-treated group. EPI was able to prevent an increasing of SIRT1 and NF-kB expression in SD model breast cancer that induced with DMBA. There is a positive correlation between SIRT1 and NF-kB expression in EPI-treated SD rats that were induced by DMBA
Pengaruh Ekstrak Metanol Akar Pasak Bumi (Eurycoma Longifolia, Jack.) terhadap Jumlah Splenosit Mencit Diinfeksi Listeria monocytogenes Darmawati, Idiani; HNES, Marsetyawan; Herwiyanti, Sri
Jurnal Mutiara Medika Vol 11, No 2 (2011)
Publisher : Fakultas Kedokteran dan Ilmu Kesehatan Universitas Muhammadiyah Yogyakarta

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Abstract

Percobaan ini dirancang untuk mempelajari pengaruh ekstrak metanol akar E. longifolia, Jack (MEEL) pada respon imun spesifik dengan penekanan khusus pada jumlah splenoctyes. Desain penelitian adalah posttest only control group design. Empat puluh delapan tikus betina Balb / c yang digunakan di seluruh. Empat puluh delapan tikus yang digunakan berpikir studi, dan dibagi menjadi 4 kelompok. Kelompok pertama sebagai kontrol hanya menerima aquadest. Kelompok II, III, dan IV diberikan 100, 200 , dan 400 mg / kgBB per hari, masing-masing yang MEEL diberikan bersama 14 hari. Kemudian, pada hari-15, diinfeksi Listeria monocytogenes. Observasi dilakukan pada hari 0, 3, dan 10 setelah infeksi. Jumlah splenocytes layak diukur dengan MTT Assay. Data dianalisis menggunakan Anova satu jalan. Hasil penelitian menunjukkan bahwa ekstrak metanol E. longifolia, Jack pada 200 mg / kg BB per hari sejauh 14 hari dapat meningkatkan persentase splenocytes, dan puncaknya terdeteksi pada hari-0 infeksi, pada Kii 11.363% yaitu, pada hari-3 setelah infeksi di KIII, yaitu 10.433% dan pada hari-10 di KIII yaitu 8.907%. Uji Anova menunjukkan perbedaan bermakna dengan pengecualian kelompok I dengan IV, dan II dengan III dan III dengan IV. Disimpulan ekstrak metanol E. longifolia, Jack. root mampu meningkatkan persentase splenocytes di Balb / c tikus yang terinfeksi dengan L. monocytogenes.
The relationship between sirtuin 1 (SIRT1) expression and tumor size, Proliferating Cell Nuclear Antigen (PCNA) expression and histological grading in rat breast carcinoma induced by dimethylbenz()anthracene (DMBA) Padauleng, Novrita; Purnomosari, Dewajani; Herwiyanti, Sri; Harjadi, .; Irianiwati, .; Widyarini, Sitarina
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 45, No 04 (2013)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2060.833 KB) | DOI: 10.19106/JMedScie004504201301

Abstract

Controversy regarding the role of SIRT1 in pathology of cancers exists and is still under debate.SIRT1 could act as either a tumor supressor or tumor promotor. This study was conducted toevaluate the relationship between SIRT1 expression and tumor size, Proliferating Cell NuclearAntigen (PCNA) expression and histological grading in rat breast carcinoma induced bydimethylbenz(á)anthracene (DMBA). Thirty female Sprague Dawley rats were randomly allocatedinto three groups with 10 rats in each group. Group 1 as negative control was just fed thestandard food. Group 2 as vehicle control was fed the standard food and corn oil. Group 3 asinduction group was fed the standard food and induced with DMBA at dose of 20 mg/kg bodyweight (BW) in corn oil twice a week for five weeks. All rats were palpated weekly to determinethe appearance, size and location of tumors. Sixteen weeks after DMBA induction rats weresacrified and histological preparations of the breast carcinoma tissue were then processed forSIRT1 and PCNA expression examination as well as histological grading. The result showed thatSIRT1 expression was significantly higher in breast carcinoma tissue compared to normal gland(26.12 vs 0.05; p = 0.004). SIRT1-positive was observed mostly in poor histological gradecarcinomas (56.2%), and it was not observed in good histological grade carcinomas. However,there was no significantly difference between SIRT1 and histological grading (p = 0.097; r =0.285). A significant correlation between SIRT1 expression and the tumor size (p =0.009; r=0.877), as well as PCNA expression (p =0.000; r =0.790) was observed. In conclusion, thereis relationship between SIRT1 expression and tumor size as well as PCNA expression in rat breastcarcinoma induced by DMBA.
The effects of ethanolic extract of Phaleria macrocarpa (Scheff.) Boerl leaf on macrophage phagocytic activity in diabetic rat model Lestari, Ira Cinta; Ghufron, Muhammad; Herwiyanti, Sri; Sumiwi, Yustina Andwi Ari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 50, No 2 (2018)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

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Abstract

Diabetic patients suffer inflammation and immune deficiency as a consequence of the decrease in macrophage phagocytic activity, thus making them vulnerable to infection. The ability of Ethanolic Extract of Phaleria macrocarpa Leaf (EEPML) to increase macrophage phagocytic activity has also a potential in the diabetic case. EEPML also has anti-inflammatory effect. In this study the EEPML potential to increase peritoneal macrophage phagocytic activity and change M1 and M2 macrophage percentage in diabetic rat model is investigated. This was a quasi experimental study with post test only control group design. Fourty five male Sprague Dawley rats within the age of 8 weeks were classified into normal control group, diabetic control group with solvent, diabetic with 7mg/200g, 14mg/200g, and 28mg/200g of EEPML peroral administration, once a day. The diabetic rat model was made with streptozotocin and nicotinamide injection. The rats were terminated in 3rd, 14th and 25th day of extract administration. Peritoneal fluid was isolated then cultured for macrophage phagocytic activity assay with latex beads. M1 and M2 macrophage percentage was  analyzed using flow cytometry with anti CD40 and CD206 antibody. Result of statistical analysis show that  active macrophage and phagocytic index mean of EEPML rat groups on day 3, 14 and 25 was significantly higher than the control group. The mean of M1 macrophage percentage of EEPML rat groups was significantly higher than control on day 3 and 14, and lower on day 25, while mean of M2 macrophage percentage didn’t show any significant difference within groups. Conclusion of this study is administration of EEPML increases peritoneal macrophage phagocytic activity on day 3, 14 and 25. This is also increases M1 macrophage percentage on day 14, decrease M1 macrophage percentage on day 25, and doesn’t change peritoneal M2 macrophage percentage in diabetic rat model.
Ekpresi Sirt1 pada Karsinoma Payudara Tikus yang Diinduksi Dimethylbenz (α) Anthracene dan Hubungannya dengan Derajat Histologis, Ukuran Tumor serta Ekpresi PCNA Padauleng, Novrita; Purnomosari, Dewajani; Herwiyanti, Sri; Harjadi, Harjadi; Irianiwati, Irianiwati; Widyarini, Sitarina
Jurnal Kedokteran Vol 5 No 2 (2016)
Publisher : Faculty of Medicine Universitas Mataram

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Abstract

Latar belakang: Karsinoma payudara terjadi melalui proses kompleks yang melibatkan mutasi serta modifikasi epigenetik. Kontribusi Sirt1 pada modifikasi epigenetik terjadi melalui aktivitas deasetilasi Sirt1 terhadap beberapa gen penekan maupun pemicu pertumbuhan karsinoma, sehingga transkripsi gen-gen tersebut menjadi inaktif. Penelitian ini bertujuan membandingkan ekspresi Sirt1 pada karsinoma payudara tikus yang diinduksi DMBA dengan kelenjar normal, serta melihat ada tidaknya hubungan antara ekspresi Sirt1 dengan derajat histologis, ukuran tumor, dan ekspresi PCNA.Metode: Sebanyak 30 ekor tikus Sprague dawley betina, dibagi menjadi 3 kelompok, yaitu pakan, kontrol vehicle (minyak jagung), dan karsinoma payudara (induksi DMBA). Analisis jaringan payudara menggunakan teknik imunohistokimia untuk protein Sirt1 dan PCNA, serta pengecatan hematoksilin eosin untuk derajat histologis.Hasil: Ekspresi Sirt1 pada karsinoma payudara tikus lebih tinggi secara bermakna dibandingkan ekspresinya di kelenjar payudara normal (26,12 vs 0,05; p=0,004). Ekspresi Sirt1 positif lebih banyak dijumpai pada karsinoma payudara dengan derajat histologis buruk (56,2%), dan tidak dijumpai pada karsinoma payudara dengan derajat histologis baik. Uji statistik menunjukkan hubungan yang sangat bermakna antara ekspresi Sirt1 dengan ukuran tumor (textitp=0,009;r=0,877) dan ekspresi PCNA (p=0,000; r=0,790).Kesimpulan: Protein Sirt1 pada penelitian ini cenderung sebagai pemicu pertumbuhan karsinomapayudara, dan ekspresi Sirt1 positif lebih banyak dijumpai pada karsinoma payudara dengan derajathistologis buruk. Peningkatan ekspresi Sirt1 disertai dengan peningkatan ukuran tumor dan ekspresiPCNA.