Argandita Meiftasari
Cancer Chemoprevention Research Center Faculty of Pharmacy, Universitas Gadjah Mada

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Safety Evaluation of Chicken Satay In Yogyakarta Indonesia Based on Benzo[A]Pyrene Content Irnanda, Khairunissa; Meiftasari, Argandita; Nagadi, Standie; Lukitaningsih, Endang
Indonesian Journal of Cancer Chemoprevention Vol 3, No 3 (2012)
Publisher : Indonesian Research Gateway

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Abstract

Chicken  satay  is  one  of  Indonesian  food  which  is  very  popular  and  processed  by direct  flame  over  the  meat.  But,  almost  every  types  of  food  which  are  prepared  by  direct flame  will  produce  chemical  compounds  that  contributes  to  the  incidence  of  cancer. Polycyclic aromatic hydrocarbons (PAH) is a group of compound which can cause cancer and is  resulted  from  the  incomplete  combustion  of  fossil  fuels  or  pyrolysis  of  organic  material containing  carbon  and  hydrogen  atoms.  One  PAH  compound  having  mutagenic  and  highly carcinogenic  effect  is  benzo[a]pyrene  which  is  the  highest  content  found  in  foods  that  are burned directly on the flame. This study aims to establish levels of benzo[a]pyrene contained in  chicken  satay  in  Yogyakarta,  Indonesia  and  to  evaluate  how  it  meets  with  the maximumbenzo[a]pyrene  limit  in  the  burned  food  based  on  National  Agency  of  Drug  and Food  Control  which  is  equal  to  5  ppb  (5  mg/kg).  Analysis  were  performed  by  Gas Chromatography  method  using  helium  as  carrier  gas  and  CPCB-Sil8  as  stationary  phase. After  the  sample  was  prepared  and  analysed  by  GC,  it  is  known  that  the  amount  of benzo[a]pyrene in chicken satay found in Yogyakarta are ranging from 2.5 to 393.32 ppb. The result are quite high and far  above the safety limit determined by  National Agency of Drug and Food Control.Therefore, the result of the research needs to be socialized to the public so that people can be more aware about the danger of food they consume.Keywords: chicken  satay,  benzo[a]pyrene  (BaP),  policyclic  aromatic  hidrocarbon  (PAH), carsinogen, Yogyakarta
PERBANDINGAN INHIBISI BERBAGAI EKSTRAK TUMBUHAN DAN VITAMIN C PADA FOTODEGRADASI TIROSIN YANG DIINDUKSI KETOPROFEN DAN KANDUNGAN FENOLIK TOTALNYA Irianti, Tatang; Fakhrudin, Nanang; Efendi, Efendi; Hartomo, Sigit; Astuti, Siluh Putu Yuni; Kusumaningtyas, Ratih Anggar; Meiftasari, Argandita
Majalah Obat Tradisional Vol 21, No 3 (2016)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/tradmedj.17301

Abstract

Antioksidan mampu menghambat reaksi radikal bebas dan fotodegradasi tirosin dapat disebabkan oleh reaksi radikal. Antioksidan alami dari tumbuhan dapat dimanfaatkan sebagai inhibitornya dan saat ini meningkat dengan pesat penggunaannya. Uji inhibisi fotodegradasi dilakukan dengan menggunakan enam kelompok. Kelompok P1 berisi 2 mL tirosin 0,05 %. Kelompok P2 berisi 2 mL tirosin 0,05 %, 600 μL Rhetoflam (ketoprofen topical) 1 %. Kelompok P3 berisi 2mL tirosin 0,05 %, 600 μL Rhetoflam 1 %, 100 μL ekstrak air daun teh 0,15 %. Kelompok P4 berisi 2 mL tirosin 0,05 %, 600 μL Rhetoflam 1 %, 100 μL ekstrak air buah mahkota dewa 0,15 %. Kelompok P5 berisi 2 mL tirosin 0,05 %, 600 μL Rhetoflam 1 %, 100 μL ekstrak etanol temu kunci 0,15 %. Kelompok P6 berisi 2 mL tirosin 0,05 %, 600 μL Rhetoflam 1 %, 100 μL vitamin C 0,15 %. Setiap kelompok ditambahkan akuades hingga 5,0 mL dan dipejani sinar lampu merkuri selama empat jam. Setelah pemajanan, dilakukan pengukuran kadar tirosin sisa menggunakan metode spektrofotometri visibel. Data yang diperoleh dianalisis menggunakan uji ANOVA dengan tingkat kepercayaan 95 %. Analisis dilanjutkan dengan uji Beda Nyata Jujur. Uji penentuan kadar fenolik total dilakukan menggunakan metode Follin-Ciocalteu. Hasil pengukuran diintrapolasikan ke dalam kurva baku asam galat. Hasil uji fotodegradasi menunjukkan bahwa ekstrak air daun teh, ekstrak air buah mahkota dewa, dan ekstrak etanol rimpang temu kunci dengan kandungan fenolik total 29,64 ± 0,86 %; 8,29 % 0,27 %; dan 7,11 % 0,15 % ekivalen asam galat (EAG) mampu menghambat secara fotodegradsi tirosin dengan aktivitas inhibisi 4,03; 1,58; dan 2,09 kali lebih besar dibanding vitamin C pada kadar sama yaitu 0,15 %.
Safety Evaluation of Chicken Satay In Yogyakarta Indonesia Based on Benzo[a]pyrene Content Irnanda, Khairunissa; Meiftasari, Argandita; Nagadi, Standie; Lukitaningsih, Endang
Indonesian Journal of Cancer Chemoprevention Vol 3, No 3 (2012)
Publisher : Indonesian Society for Cancer Chemoprevention

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14499/indonesianjcanchemoprev3iss3pp432-436

Abstract

Chicken satay is one of Indonesian food which is very popular and processed by direct flame over the meat. But, almost every types of food which are prepared by direct flame will produce chemical compounds that contributes to the incidence of cancer. Polycyclic aromatic hydrocarbons (PAH) is a group of compound which can cause cancer and is resulted from the incomplete combustion of fossil fuels or pyrolysis of organic material containing carbon and hydrogen atoms. One PAH compound having mutagenic and highly carcinogenic effect is benzo[a]pyrene which is the highest content found in foods that are burned directly on the flame. This study aims to establish levels of benzo[a]pyrene contained in chicken satay in Yogyakarta, Indonesia and to evaluate how it meets with the maximumbenzo[a]pyrene limit in the burned food based on National Agency of Drug and Food Control which is equal to 5 ppb (5 mg/kg). Analysis were performed by Gas Chromatography method using helium as carrier gas and CPCB-Sil8 as stationary phase. After the sample was prepared and analysed by GC, it is known that the amount of benzo[a]pyrene in chicken satay found in Yogyakarta are ranging from 2.5 to 393.32 ppb. The result are quite high and far above the safety limit determined by National Agency of Drug and Food Control.Therefore, the result of the research needs to be socialized to the public so that people can be more aware about the danger of food they consume.Keywords: chicken satay, benzo[a]pyrene (BaP), policyclic aromatic hidrocarbon (PAH), carsinogen, Yogyakarta
Red Betel Leaves Methanolic Extract (Piper crocatum Ruiz & Pav.) Increases Cytotoxic Effect of Doxorubicin on WiDr Colon Cancer Cells through Apoptosis Induction Wulandari, Nindi; Meiftasari, Argandita; Fadliyah, Hilyatul; Jenie, Riris Istighfari
Indonesian Journal of Cancer Chemoprevention Vol 9, No 1 (2018)
Publisher : Indonesian Society for Cancer Chemoprevention

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14499/indonesianjcanchemoprev9iss1pp1-8

Abstract

Doxorubicin is a chemotherapeutic agent that causes a lot of side effects in high doses. Thus, combination with a co-chemotherapeutic agent which can increase its toxicity on cancer cells, is needed to reduce its therapeutic dose. Red betel leaves (Piper crocatum Ruiz & Pav.) have been known to contain flavonoids and alkaloids that have anticancer activity. This study was conducted to determine the cytotoxic effect and apoptosis induction of red betel leaves methanolic extract (RBM), doxorubicin (dox) and the combination of them on WiDr cells as model of colon cancer. RBM was extracted by soxhlet method using methanol. Cytotoxicity assay was performed using MTT assay for both single and combination treatments for 24 hours to determine IC50 and CI as their parameters. Apoptosis induction was analyzed by double staining method using ethidium bromide-acridine orange staining. Treatment of RBM and dox on WiDr cells for 24 hours showed cytotoxic activity with IC50 100 μg/mL and 1.6 μM respectively. Combination of RBM and dox performed synergism effect with CI<0.9 (p<0.05). Combination of RBM (12.5 μg/mL) and dox (0.4 μM) increased the number of apoptosis cells compared to each single treatment. Based on this study, it can be concluded that red betel leaves methanolic extract is potential to be developed as a co-chemotherapeutic agent of doxorubicin on colon cancer but still need further study to disclose the underlying molecular mechanisms.Keywords :  Red betel leaves (Piper crocatum Ruiz & Pav.), doxorubicin, WiDr cells, co- chemotherapeutic agent
Ethanolic Extract of Hedyotis corymbosa and Its Combination with 5-FU Inhibit Cyclin D Expression on WiDr Colorectal Cancer Cell Meiftasari, Argandita; W.P., Januar Caesar; Novarina, Annisa; W., Julika Yovi; Jenie, Riris Istighfari
Indonesian Journal of Cancer Chemoprevention Vol 7, No 1 (2016)
Publisher : Indonesian Society for Cancer Chemoprevention

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14499/indonesianjcanchemoprev7iss1pp25-30

Abstract

Hedyotis corymbosa has been used for long time as an important component in several folklore medicine formula to clinically treat various types of cancer, including colorectal cancer (CRC). Previously, Hedyotis corymbosa ethanolic extract (HEE) which contain ursolic acid reported to inhibit CRC growth via induction of cancer cell apop­tosis and blocked the cell cycle, preventing G1 to S progression where cyclin D highly espressed in this phase. 5-fluorouracil (5FU), the first line chemotherapy of colorectal cancer have had resistence and possessed several side effects such as neutropenia, immunosuppression, diarrhea, and also constipation. Therefore, the aim of this research is to conduct the antiproliferative effect and molecular analysis of HEE and its combination with 5FU. Molecular docking study was also done to approach the specific protein target of the compound. Antiproliferative effect was conducted by MTT assay, while cyclin D expression  was examined by immunofluorescence. The proliferative effect showed that both HEE and 5-FU had cytotoxic effect with IC50 value of 65 µg/mL and 90 µM respectively, meanwhile the combination of HEE and 5FU have synergism effect with CI = 0.48 on dose HEE = 22 µg/mL and 5FU= 6.25 µM. Immunofluorescence assay showed HEE and its combination with 5FU suppressed the expression of cyclin D. From molecular docking simulation, ursolic acid performed stable interaction with cyclin D. Our findings suggest that HEE may be an effective treat­ment for co-chemotherapic for 5-FU through inhibition of cyclin D expression.Keywords : Hedyotis corymbosa, 5-fluorouracil, colorectal cancer,  WiDr, cyclin D