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All Journal Jurnal Kedokteran Syiah Kuala International Journal of Integrated Health Sciences Pharmaciana: Jurnal Kefarmasian Media Ilmu Keolahragaan Indonesia Buletin Farmatera Jurnal Biomedika dan Kesehatan Jurnal Keperawatan dan Fisioterapi (JKF) Jurnal Kesmas dan Gizi (JKG) IJOEP : International Journal of Ecophysiology Narra J

Yamamoto, Zulham

Department Of Histology, Faculty Of Medicine, Universitas Sumatera Utara

Author-ID : 2028145

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Health Professions Immunology & microbiology Medicine & Pharmacology Public Health Other

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MALONDIALDEHYDE (MDA) (ZAT OKSIDAN YANG MEMPERCEPAT PROSES PENUAAN) Novrina Situmorang; Zulham Zulham
JURNAL KEPERAWATAN DAN FISIOTERAPI (JKF) Vol 2 No 2 (2020): Jurnal Keperawatan dan Fisioterapi (JKF)
Publisher : Fakultas Keperawatan dan Fisioterapi Institut Kesehatan Medistra Lubuk Pakam

Malondialdehyde (MDA) is the end product of fat peroxidation due to the breakdown of fatty acid chains which are compounds that toxic to cells. Fat peroxidation is caused by body fat bound to free radicals such as hydroxyl radicals, superoxide anion radicals, and hydrogen peroxide, which are compounds or atoms that have unpaired electrons in their outer orbitals so that they are very reactive to cells or surrounding cell components including lipids. As a result of the lipid peroxidation reaction which is continuous which can cause various diseases and accelerate the aging process, because malondialdehyde causes cell damage. The aging process is the weakening of cells and organs as a whole starting from adulthood slowly and progressing quickly after the age of 50 years, marked by the body begins to ache and wrinkled skin. Naturally, the aging process will occur in every human being, but the process is different, some are fast (the process of premature aging) and some are slow (ageless). Although the aging process occurs for several reasons, free radicals such as melondialdehyde also contribute to accelerating the aging process. Efforts to slow down premature aging due to free radicals, namely antioxidants. As an active ingredient, antioxidants are used to protect skin from oxidation damage and prevent premature aging.

SUPEROKSIDA DISMUTASE (SOD) DAN RADIKAL BEBAS Evirosa Juliartha Simanjuntak; Zulham Zulham
JURNAL KEPERAWATAN DAN FISIOTERAPI (JKF) Vol 2 No 2 (2020): Jurnal Keperawatan dan Fisioterapi (JKF)
Publisher : Fakultas Keperawatan dan Fisioterapi Institut Kesehatan Medistra Lubuk Pakam

Superoxide dismutase (SOD) is an endogenous antioxidant that works by regulating ROS levels. This group of enzymes functions to catalyze the efficient disposal of superoxide anions. Superoxide anions are produced enzymatically and non-enzymatically. In mammals there are 3 types of SOD, namely SOD1 (CuZnSOD), SOD2 (MnSOD), SOD3 (ECSOD). Oxidative stress caused by free radicals has been reported to be involved in several diseases. Various stressors trigger ROS production, also triggering the production of enzymatic antioxidants such as catalase (CAT), hydroperoxidase (HPx) and superoxide dismutase (SOD). Free radicals cause oxidative stress when the amount in the body is excessive, this situation will cause oxidative damage at the cellular, tissue to organ levels that will accelerate the aging process and the onset of disease. Free radicals are molecules that have one or more unpaired electrons and are therefore relatively unstable. Free radicals try to stabilize themselves by taking electrons from other molecules and will produce reactive oxygen species (ROS). If there is a disturbance in the balance of ROS products with antioxidants, oxidative stress will occur which results in damage to cell components. The higher levels of oxidative stress will increase the lipid peroxidation marker which is presented as malondialdehyde (MDA) and decrease the SOD enzyme activity. Thus the role of molecules that have antioxidant activity is very necessary to ward off oxidative stress.

DNMT1 Level as Biomarker for Early Detection of Nasopharyngeal Carcinoma Raudah Putri Syari; Zulham Yamamoto; Farhat; Sry Suryani Widjaja; Ririe Fachrina Malisie
JURNAL KEPERAWATAN DAN FISIOTERAPI (JKF) Vol. 8 No. 1 (2025): Jurnal Keperawatan dan Fisioterapi (JKF)
Publisher : Fakultas Keperawatan dan Fisioterapi Institut Kesehatan Medistra Lubuk Pakam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35451/qwakjv41

Introduction: Nasopharyngeal carcinoma (NPC) is a malignant disease often diagnosed at an advanced stage. Early detection of NPC is necessary to reduce morbidity and mortality of this disease. To date, early detection methods for NPC still have limitations, especially in terms of positive predictive value. Identification of DNA methylation abnormalities has been studied for its role as a marker for early detection of NPC. Objective: This review describes the potential of DNMT1, an enzyme involved in DNA methylation, as a biomarker for early detection of NPC. Methods: We conducted a literature search using PubMed and Google Scholar databases. The keywords used were "nasopharyngeal carcinoma AND DNMT1", nasopharyngeal carcinoma AND early detection, "nasopharyngeal carcinoma AND screening", nasopharyngeal carcinoma OR DNMT1, “DNMT1 OR Carcinoma”, nasopharyngeal carcinoma OR screening, and nasopharyngeal carcinoma OR early detection. Results: Increased DNMT1 expression is associated with global hypermethylation which is part of the early pathogenesis of NPC. LMP1, as an oncoprotein released by EBV, increases DNMT1 expression and activity. Conclusion: High DNMT1 expression in NPC indicates its potential as an early detection method for NPC.

Co-Authors Amin Soebandrio Bambang Prayugo Bayu Dewanto Evirosa Juliartha Simanjuntak Farhat Gembira Arkemo Situmorang Harahap, Desy Aryani Jelita Siregar Kevin Kevin Kusumawati, R. Lia M. Ichwan Mayasari, Evita Muhammad Ichwan Muhammad Ichwan Novrina Situmorang Nuraiza Meutia Pandia, Pandiaman Rahmi Rahmi Rambe, Ismatul Fauziah Raudah Putri Syari Rina Yunita Ririe Fachrina Malisie Sembiring, Rosita J. Sinaga, Bintang YM. Sulviani, Nurul Syahfira A Syahna Wahyuni, Arlinda S. Widjaja, Sry Suryani Yetty Machrina

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