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Journal : Majalah Kedokteran Gigi Indonesia

Ekspresi COX-2 dan Jumlah Neutrofil Fase Inflamasi pada Proses Penyembuhan Luka Setelah Pemberian Sistemik Ekstrak Etanolik Rosela (Hibiscus sabdariffa) (studi in vivo pada Tikus Wistar) Kusumastuti, Endah; Handajani, Juni; Susilowati, Heni
Majalah Kedokteran Gigi Indonesia Vol 21, No 1 (2014)
Publisher : Majalah Kedokteran Gigi Indonesia

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Abstract

Inflamasi merupakan respon alami tubuh terhadap adanya kerusakan jaringan. Salah satu medikamen untuk mengatasi inflamasi adalah antiinflamasi non steroid (AINS). Penggunaan AINS mempunyai beberapa efek samping dan dalam beberapa hal penggunaan tanaman obat dinilai lebih aman. Rosela merupakan salah satu tanaman obat yang mempunyai potensi sebagai antiinflamasi. Penelitian ini bertujuan untuk mengetahui efek pemberian sistemik ekstrak etanolik rosela terhadap ekspresi COX-2 dan jumlah neutrofil fase inflamasi pada proses penyembuhan luka. Bunga rosela didapatkan dari perkebunan di Dusun Bulusari Desa Pojok Kecamatan Tarokan Kabupaten Kediri Jawa Timur. Pembuatan ekstrak rosela dilakukan di LPPT unit I UGM Yogjakarta dengan cara perkolasi. Tikus putih galur Wistar sebanyak 36 ekor diberi perlukaan dengan punch biopsi ɵ 3 mm pada mukosa bukal. Subjek dibagi menjadi 3 kelompok, masing-masing kelompok 12 ekor tikus. Pembagian kelompok terdiri dari kontrol negatif (saline), kontrol positif (ibuprofen 20 mg/kg BB) dan perlakuan (ekstrak rosela 500 mg/kg BB). Pemberian minum sesuai kelompoknya sehari sekali selama 4 hari. Pada hari ke-1, ke-2, ke-3 dan ke-4 tikus dikorbankan lalu jaringan mukosa yang mengalami perlukaan dibuat preparat histologis. Pewarnaan Hematoksilin Eosin (HE) dilakukan untuk mengamati jumlah neutrofil. Ekspresi COX-2 diamati pada preparat dengan pewarnaan imunohistokimia menggunakan rabbit polyclonal antibody COX-2 (Lab Vision, USA). Jumlah neutrofil dan ekspresi COX-2 dihitung di bawah mikroskop cahaya lalu data dianalisi menggunakan ANAVA dan LSD. Hasil penelitian menunjukkan bahwa ekspresi COX-2 dan jumlah neutrofil lebih rendah pada kelompok perlakuan dibanding kontrol. Pengamatan klinis pada hari ke-4 juga tampak luka seluruh subjek telah menutup sempurna setelah pemberian minum rosela. Disimpulkan bahwa ekstrak etanolik rosela mempunyai kemampuan menghambat ekspresi COX-2 dan menurunkan jumlah neutrofil sehingga dapat digunakan sebagai bahan anti-inflamasi. ABSTRACT: Expression of COX-2 and The Number of Neutrophil in Inflammation stage of Wound Healing Process after Systemic Administration of Ethanolic Extract Rosela. Inflammation is an initial stage of body’s natural response to tissue damage.The use  empirically plants often used for traditional medicine because it is easily found in the community and fewer side effects. Flavanoid presence of roselle (Hibiscus sabdariffa) is thought to have anti inflammatory effects. This study aimed to know the effect of systemic administration of Roselle ethanolic extract toward COX-2 expression and neutrophils number in the inflammatory phase of wound healing processes. Roselle was obtained from plantations in Bulusari hamlet, Tarokan, Kediri, EastJava. Making roselle extract was performed in LPPT unit 1 UGM Yogyakarta by percolation ways. Wistar rats were given a total of 36 injuries with ɵ 3 mm punch biopsy of the buccal mucosa. Subjects were divided into three groups, each group of 12 rats. The division consists of the negative control group (saline), positive control (ibuprofen 20 mg/kg) and treatment (roselle extract 500 mg/kg). Giving drink suitable group once daily for four days. On day 1, the 2nd, 3rd and fourth rats were sacrificed, and mucosal tissue injury was made histological preparat. Hematoxylin eosin staining (HE) was performed to observe the number of neutrophils. COX-2 expression was found in preparations for immunohistochemical staining using rabbit polyclonal COX-2 antibody (Lab Vision, USA). The number of neutrophils and expression of COX-2 is calculated under a light microscope data were analyzed using Two-way ANOVA and LSD. The results showed that the expression of COX-2 and neutrophil number were least in the treatment group compared to the control. Clinical observation on day four also appears around the wound has completely closed the subject after administration of roselle drink. It was concluded that the ethanolic extract of roselle can inhibit COX-2 expression and decrease the number of neutrophils that can be used as an anti-inflammatory ingredient. 
Ekspresi Caspase-3 pada Sel Epitel Rongga Mulut (Kb Cell Line) setelah Paparan Ekstrak Kopi Hutomo, Suryani; Suryanto, Yanti Ivana; Susilowati, Heni; Rudolf Phym, Agustinus; Maheswara, Devi Chretella
Majalah Kedokteran Gigi Indonesia Vol 21, No 2 (2014)
Publisher : Majalah Kedokteran Gigi Indonesia

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Abstract

Kopi adalah minuman yang biasa dikonsumsi oleh masyarakat sehari-hari. Telah diketahui bahwa kopi mengandung kafein seperti yang terdapat juga pada teh dan coklat. Kandungan terbanyak kafein terdapat pada kopi. Kafein mempunyai struktur kimia 1, 3, 7- trimethylxanthine dan merupakan derivat xanthine. Senyawa ini dapat menginduksi kematian sel yang mengarah pada apoptosis, namun mekanisme yang terlibat belum diketahui dengan jelas. Tingginya konsumsi kopi di dunia yang selalu meningkat mengindikasikan perlunya dilakukan penelitian untuk mengetahui efek kafein pada epitel rongga mulut yang berkontak langsung dengan kafein. Penelitian terdahulu melaporkan bahwa ekstrak kopi menyebabkan kerusakan sel yang sebagian besar mengarah pada apoptosis, tetapi mekanismenya belum jelas. Tujuan penelitian ini adalah untuk menganalisis mekanisme kematian sel KB yang diinduksi oleh kafein melalui aktivasi caspase-3. Sel KB sebagai model epitel oral (5x10⁴sel) dikultur dalam DMEM menggunakan 24 wells microplate selama 24 jam sebelum perlakuan. Sel selanjutnya dipapar dengan kafein dengan konsentrasi 100 µg/ml, 200 µg/ml, 400 µg/ml dan diinkubasi selama 24 dan 48 jam dalam DMEM. Doxorubicin (0,5625 µg/ml) digunakan sebagai kontrol positif induksi apoptosis. Teknik imunositokimia terhadap caspase-3 dilakukan pada sel setelah dipapar kafein untuk mengamati adanya ekspresi caspase-3 sebagai ciri apoptosis. Identifikasi caspase-3 dilakukan menggunakan mikroskop fase kontras. Ekspresi protein caspase-3 terdeteksi pada sitoplasma sel KB. Hasil penelitian ini menunjukkan adanya ekspresi caspase-3 aktif yang ditandai dengan warna cokelat dengan intensitas kuat pada sitoplasma sebagian besar sel setelah dipapar kafein dengan konsentrasi 100 μg/ml dan 200 µg/ml selama 24 jam. Disimpulkan bahwa ekstrak kopi menyebabkan apoptosis sel KB melalui jalur aktivasi caspase-3. ABSTRACT: The Expression of Caspase-3 in Oral Cavity (Kb Cell Line) after Exposure to Coffee Extract. People widely consume coffee in daily meals. It is known there is caffeine found in coffee like it is found in tea and chocolate. Caffeine is found in the greatest amount of coffee. This 1, 3, 7- trimethyl xanthine substance is a derivate of xanthine that is consumed by almost all people in the world. This substance could induce cell death that mainly is apoptosis, but how the mechanism has not been clearly understood. Considering that coffee is widely consumed in the whole world, it is necessary to conduct an experiment to find any possible effect of caffeine to oral epitel that make direct exposure to caffeine. This experiment is targeted to analyze the mechanism of cell death which caused by caffeine through activation of caspase-3. KB cells as oral epithelial model (5x1044 sel) were cultured in DMEM using 24 well microplate for 24 hours before treatment. Then caffeine was given with concentration of 100 µg/ml, 200 µg/ml and 400 µg/ml. Cells were then incubated for 24 and 48 hours period in DMEM. Doxorubicin (0,5625 µg/ml) was used as a positive control of apoptosis induction. Immunocytochemistry technique was then done to observe any caspase three expression as a marker for apoptosis. Identification of active caspase-3 was then done using contrast phase microscope. The results showed expression of caspase-3 in KB cells cytoplasm which observed as high intensity of brown colored molecules in cell cytoplasm after 100 μg/ml and 200 µg/ml caffeine exposure in 24 hours. It was concluded that coffee extract induce KB cells apoptosis through caspase-3 activation mechanism.
Dealing with the high-risk potential of COVID-19 cross-infection in dental practice Yulianto, Heribertus Dedy Kusuma; Purwanti, Nunuk; Utami, Trianna Wahyu; Dewi, Anne Handrini; Listyarifah, Dyah; Ruspita, Intan; Nur, Asikin; Susilowati, Heni
Majalah Kedokteran Gigi Indonesia Vol 6, No 1 (2020): April
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.56588

Abstract

The World Health Organization reported that the SARS-CoV-2 virus has infected more than 5 million people around the world. Dental care providers and health care professionals need to be aware of the high-risk potential of crossinfection since the routes of virus transmission commonly happen through droplets and aerosols. This review aimed at collecting essential knowledge about the COVID-19 needed by dental practitioners. The review focused on the oral involvement in COVID-19, the role of oral transmission as the high-risk potential of cross-infection and recommended strategies to minimize the risk of cross-infection in dental practice. We searched all the published clinical features from PubMed, Google Scholar, Scopus and hand searched library online databases, from January 2015 until May 2020. Keywords used were “COVID-19”, “Dentistry”, “Dental protection”, “Cross-contamination”, “Aerosol and non aerosol”, and ”Povidone-iodine” with their combinations. We identified 52 articles to review after the initial selection with inclusion and exclusion criteria. Results showed use of topical applications of povidine-iodine and viricidal mouthwash could significantly reduce the high-risk of cross-infection from dentistry patients who are asymptomatic with COVID-19 infection. Further safeguards include suspending all non-emergency procedures temporarily and closely screening patients for symptoms which may be suspected to be COVID-19 infection.
Co-Authors Ady, Pangeran Pandu Bayu Agustinus Rudolf Phym, Agustinus Agustiya, Arvi Alma Linggar Jonarta Andriana, Myra Anne Handrini Dewi Aprilia, Sintya Asikin Nur Atsushi Tabata Ayun Febriana Azzahra, Annisa Annur Dea Cahyani, Yessica Denise Utami Putri, Denise Utami Devi Chretella Maheswara, Devi Chretella Dewi Agustina Dewi Widyaningsih Dyah Irnawati Dyah Listyarifah Edy Meiyanto Endah Kusumastuti Fahlevi, Bunga Farida, Dwi Ana Farmasyanti, Cendrawasih Andusyana Fery Setiawan Hanif, Hilmy Irsyadi Hardiyani, Reisca Tiara Hargyatni, Titin Hary Hermawan Hayuningtyas, Widya Galuh Henny Henny, Henny Heribertus Dedy Kusuma Yulianto Hermawan Prasetyanto HIDAYAT, ERWAN NUR Hideaki Nagamune Hirohiko Okamura Innayati Oktiana Yudasari, Innayati Oktiana Intan Ruspita, Intan Irsalina, Nadia Iswari, Febri Nandia Sri Jaelani, Jaelani Juni Handajani Katsuhiko Hirota Kaya Yoshida Kuijpers-Jagtman, Anne Marie Kustami, Endang Kusumaningsih, Dhevi Dadi Kusumaningtyas, Dhevi Dadi Lisdrianto Hanindriyo Lukis, Prima Agusti Mariana, Septanus Rita Maulana, Putri Anindya Mohammad Khafid Mu'tashim, Muhammad Faris Mun‘im, Abdul Nunuk Purwanti Pertiwi, Heppy Atma Prabowo, Adi Prakosa, Basma Rosandi Prawira, Anggun Wida Ratnaningrum Ratnaningrum, Ratnaningrum Retnosari Andrajati Sati, Dian Laras Selvy, Mutiara Septiani, Intan Dzahabiyah Shofiana, Umu Salma Siagian, JW Siti Sunarintyas Siwi, Dyanasti P. Sulistyowati, Pemilia Suryani Hutomo, Suryani Suryanto, Yanti Ivana Tatsuji Haneji Titin Hargyatni Trianna Wahyu Utami Wijayanti, Afifah Arum Wulandari Wulandari Yoga, Ika Yoichiro Miyake Yosaphat Bayu Rosanto Ziadah, Tsai'un Nur