Santoso, Dewi Irawati Soeria
Departemen Fisiologi Medik, Fakultas Kedokteran, Universitas Indonesia

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The benefits and physiological changes of high intensity interval training Soeria Santoso, Dewi Irawati; Boenyamin, Hafizh Ahmad
Universa Medicina Vol 38, No 3 (2019)
Publisher : Faculty of Medicine, Trisakti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.886 KB) | DOI: 10.18051/UnivMed.2019.v38.209-216

Abstract

Physical inactivity have been linked with many major non-communicable diseases and as many as 27.5% of adults globally are considered inactive. Physical activity has been proven to be beneficial in the prevention of many chronic diseases and may reduce the risk of premature death. High intensity interval training (HIIT) has been gaining popularity as a time-efficient alternative for regular exercise training. Current studies show that HIIT is more efficient in improving cardiorespiratory fitness, increasing insulin sensitivity and reducing blood pressure than moderate intensity continuous training (MICT). The advantage of HIIT in fat loss compared to MICT is still unclear, but HIIT might be more efficient in the obese population. The effect of HIIT on increasing aerobic fitness could be caused by increase in stroke volume due to the increase in cardiac contractility, capillary density and mitochondrial adaptation. Fat loss during HIIT could be caused by increased fat oxidation and elevated hormones that drive lipolysis and reduce appetite. While vigorous physical activity may transiently increase the risk of cardiac events. The effect of HIIT on increasing aerobic fitness could be caused by increase in stroke volume due to the increase in cardiac contractility, increased of capillary density and mitochondrial adaptation. While fat loss during HIIT could be caused by an increased fat oxidation, elevated hormones that drives lipolysis and reduces appetite. While vigorous physical activity may transiently increase the risk of cardiac event. High intensity interval training is generally safe even in the elderly population and in people with coronary heart disease.
LOW VITAMIN B12 DIET INCREASES LIVER HOMOCYSTEINE LEVELS AND LEADS TO LIVER STEATOSIS IN RATS Sianipar, Imelda Rosalyn; Ujianti, Irena; Yolanda, Sophie; Jusuf, Ahmad Aulia; Kartinah, Neng Tine; Amani, Patwa; Murti, Krishna Aditya; Soeria Santoso, Dewi Irawati
Universa Medicina Vol 38, No 3 (2019)
Publisher : Faculty of Medicine, Trisakti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (821.825 KB) | DOI: 10.18051/UnivMed.2019.v38.194-201

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Background Nonalcoholic fatty liver disease (NAFLD) is one of the most widespread chronic liver diseases, caused by the development of insulin resistance. One of the mechanisms involved is a disturbance in insulin signaling by certain toxic substances that interact with one of the proteins responsible for the insulin signaling pathway. Increased homocysteine level, upon disruption of the methionine pathway, is associated with insulin resistance. The aim of this study was to evaluate the effect of hyperhomocysteinemia and insulin resistance (HOMA-IR level) induced by dietary vitamin B12 restriction on liver steatosis. Methods A study of laboratory experimental design was conducted involving 18 male Sprague Dawley rats (age 36-40 weeks, BW 300-350 g), that were randomly divided into 3 groups: control, 8-week treatment, and 16-week treatment. Standard AIN-93 diet was administered to the control group, whereas rats in the treatment groups were fed vitamin B12 deficiency-AIN-93M. At the end of treatment, liver homocysteine levels were determined by ELISA, HOMA-IR values were calculated, and steatosis degree of the liver was determined histologically. Statistical analysis was performed using independent t-test. Results A significant increase in liver homocysteine levels was found between the control and both the 8- and 16-week treatment groups (p<0.001). HOMA-IR levels were significantly higher in both treatment groups compared to controls (p<0.001). The area of liver steatosis in both treatment groups was significantly larger than that of the control group (p<0.001). Conclusion Increased homocysteine levels due to dietary vitamin B12 deficiency induces liver steatosis due to insulin resistance in rats.
PERAN LATIHAN FISIK DALAM PENANGANAN OBESITAS: AKSI IRISIN PADA PROSES PENCOKELATAN Dewi Irawati Soeria Santoso; Imelda Rosalyn Sianipar; Neng Tine Kartinah
JURNAL ILMU FAAL OLAHRAGA INDONESIA Vol 3, No 1 (2020)
Publisher : PAIFORI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.616 KB) | DOI: 10.51671/jifo.v3i1.86

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In recent years, the prevalence of obesity continues to increase, leading to a public health problem. Therefore, the obesity problem needs serious attention and treatment approaches. Exercise is one of the treatment approach to combat obesity because exercise plays a role in beiging/browning process. Beiging is a differentiation process from white adipocyte to beige adipocyte, which has similar characteristics to brown adipocyte and is marked with an increase of UCP-1 expression. Irisin plays a role in increasing UCP-1 expression by activating p38 mitogen-activated protein kinase (MAPK) and extracellular-signal regulated kinase (ERK) signaling. Muscle contraction during exercise can activate PGC-1α, which leads to the synthesis of irisin. Exercise may increase irisin levels in skeletal muscle and consequently, play as a mediator of beiging process in adipose tissue.
Combination of Aerobic Exercise and Continuous Environmental Enrichment Improves Adult Male Rats’ Spatial Memory: Study on Hippocampal Insulin Like Growth Factor 1 (IGF-1) and Fibroblast Growth Factor 2 (FGF-2) Expression Sophie Yolanda; Sri Redjeki; Trinovita Andraini; Dewi Irawati Soeria Santoso; Nurhadi Ibrahim; Rena Mailani
The Indonesian Biomedical Journal Vol 11, No 2 (2019)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v11i2.731

Abstract

BACKGROUND: Memory declines with the progression of age through the neurodegeneration process. Aerobic exercise and environmental enrichment can delay neurodegeneration by improving neuroplasticity via expression of insulin like growth factor 1 (IGF-1), fibroblast growth factor 2 (FGF-2) and other proteins. Combination treatment of aerobic exercise and continuous environmental enrichment and their effect on the expression of IGF-1 and FGF-2 which were expected to improve memory function has not been studied previously. Thus, this study aimed to observe it.METHODS: This is an experimental research using 24 male Wistar rats (Rattus norvegicus, 300-400 g, age 7-8 months) divided randomly into 4 groups: control (C), aerobic exercise (A), continuous (EE), and combination of aerobic exercise and continuous environmental enrichment (A-EE). At the end of an 8-week treatment, rats were sacrificed, and an enzyme-linked immunosorbent assay (ELISA) examination was performed to assess hippocampal IGF-1 and FGF-2 levels.RESULTS: In the 8th week, A-EE group showed the best improvement in rats’ spatial memory (47.84±10.6 %) followed by EE group (45.03±4.1 %), A group (38.61±3.8 %), and C group (22.76±7.12 %). However, A-EE group’s hippocampal IGF-1 (16.21±7.56 ng/mg protein) and FGF-2 (1.29±0.57 ng/mg protein) expression were not higher than other groups.CONCLUSION: Improvement in memory function in the combination group is a result of induction of various growth factors’ expression in the hippocampus, including IGF-1 and FGF-2, but the primary pathway of memory function improvement may be from other growth factors.KEYWORDS: spatial memory, aerobic exercise, environmental enrichment, hippocampus, IGF-1, FGF-2
Effect of Aerobic Exercise on Left Ventricular Connexin43 Expression and Distribution in Juvenile and Young Adult Rats Rustiana Tasya Ariningpraja; ‪Dewi Irawati Soeria Santoso; Ahmad Aulia Jusuf; Alfrina Hany
Journal of Biomedicine and Translational Research Vol 7, No 1 (2021): April 2021
Publisher : Faculty of Medicine, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbtr.v7i1.10690

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Background: Gap Junction (GJ) plays a role in supporting the heart electricity. Connexin43 (Cx43) as the main protein constituent of GJ in left cardiac ventricle, will increase in number and slightly redistributed to the lateral sides of cardiomyocytes after aerobic exercise in adulthood. The effects of aerobic exercise that begin at childhood are not well known.Objective: This study aims to observe the effect of aerobic exercise which started from childhood on left ventricle Cx43 distribution.Methods: This study was conducted on 28 male Juvenile (4 weeks) and young adult (8 weeks) rats, divided into 7 groups: 1) Juvenile rats undergoing 4 weeks of exercise (E-J4); 2) Control E-J4 (C-J4); 3) Juvenile rats undergoing 8 weeks of exercise (E-J8); 4) Control EJ-8 (C-J8); 5) Juvenile rats undergoing 12 weeks of exercise (E-J12; 6); Young adult rats undergoing 8 weeks of exercise (E-Yo8); 7) Control E-J12 and E-Yo8 (C-JY128). Exercise group will undergo different length of duration, starting from week 4 until 12 weeks. Cx43 was identified by immunohistochemical staining and analyzed with ImageJ software. Comparison was analyzed using independent t-test.Results: Insignificant lower of total Cx43 expression in E-J4 (64200.45 + 4243.676 total area, p >0.05) compared to control. In contrast, a significant higher of total Cx43 expression was observed in EJ-8, EJ-12 and E-Yo8 (80152.95 + 3760.481, p = 0.001; 75596.775 + 3976.333, p = 0,002; 81216.85+ 2475.768, p = 0,000). Slightly higher of lateral Cx43 redistribution occurred in all aerobic exercise, with significant lateralization in E-J8 and E-Yo8.Conclusion: Aerobic exercise increases Cx43 and slightly redistributed to lateral myocytes under normal condition both in juvenile and young adult rats.
Superior mesenteric artery blood flow in infants of very preterm and very low birthweight and its related factors Evita Karianni Bermanshah Ifran; Wresti Indriatmi; Tetty Yuniarti; Nadjib Advani; Saleha Sungkar; Dewi Irawati Soeria Santoso; Rinawati Rohsiswatmo; Yvan Vandenplas; Badriul Hegar
Paediatrica Indonesiana Vol 63 No 2 (2023): March 2023
Publisher : Indonesian Pediatric Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14238/pi63.2.2023.80-7

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Abstract Background Significant hemodynamic changes in preterm infants during early life could have consequences, especially on the intestinal blood flow. Alteration of superior mesenteric artery (SMA) blood flow may lead to impairment in gut function and feeding intolerance. Objectives To assess SMA blood flow velocity in very preterm and/or very low birth weight (VLBW) infants in early life and to elucidate the factors influencing them. Methods This is a cross-sectional study conducted in NICU at Cipto Mangunkusumo Hospital, Jakarta. Superior mesenteric artery (SMA) blood flow was evaluated by peak systolic velocity (PSV), end diastolic velocity (EDV), and resistive index (RI) measurement using Color Doppler US at < 48 hours after birth. Maternal and neonatal data that could be potentially associated with SMA blood flow were obtained. Bivariate analyses were conducted with a P value of < 0.05 considered significant. Results We examined 156 infants eligible for the study. PSV, EDV, and RI of SMA blood flow were not related to both gestational age and birth weight. Infant with small for gestational age (SGA) showed significantly lower EDV median [15.5 (range 0.0-32.8) vs 19.4 (range 0.0-113.0)] and higher RI [0.80 (range 0.58-1.00) vs 0.78 (range 0.50-1.00)] compared to appropriate for gestational age (AGA). Infants born from mother with preeclampsia showed lower PSV median [(78.2 (range 32.0-163.0) vs 89.7 (range 29.2-357.0)]) and EDV [16.2 (range 0.0-48.5) vs 19.4 (range 0.0-113.0)] compared to without PE, while absent/reverse end-diastolic velocity (AREDV) revealed a lower EDV median [16.9 (range 0.0 – 32.4) vs 19.4 (range 0.0 – 113.0)] compared to no AREDV. Furthermore, infants with hs-PDA showed lower EDV median [16.2 (range 0.0-113.0) vs 19.4 (range 0.0-71.1)] but higher RI median [0.80 (range 0.50-1.00) vs 0.78 (range 0.55-1.00)] compared to non hs-PDA. No difference in SMA blood flow across other factors was observed.
Perubahan Aktivitas Listrik Jantung pada Tikus yang Diberi Latihan Fisik Aerobik Serta Henti Latih William .; Dewi Irawati Soeria Santoso; Isdoni .; Riki Siswandi
Jurnal Kedokteran Meditek Vol. 21 No. 55 Januari - April 2015
Publisher : Fakultas Kedokteran Universitas Kristen Krida Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36452/jkdoktmeditek.v21i55.1199

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AbstrakLatar Belakang: Latihan fisik aerobik telah lama diketahui memberikan pengaruh yang baik kepada tubuh,  latihan fisik aerobik yang rutin dan dalam jangka waktu lama dapat membuat jantung mengalami remodeling. Proses remodeling ini bukan hanya terjadi pada struktur tetapi juga pada kelistrikan jantung, beberapa studi menunjukkan remodeling listrik jantung yang terjadi mengakibatkan berbagai bentuk aritmia, dan belum banyak yang diketahui tentang remodeling listrik jantung setelah henti latih.Metode: Pemeriksaan EKG dilakukan pada tikus Wistar jantan yang telah menjalani latihan fisik aerobik  selama empat minggu dan 12 minggu. Pemeriksaan EKG juga dilakukan lagi setelah empat minggu periode henti latih. Kecepatan alat treadmill yang digunakan adalah 20 m/menit, dengan lama durasi latihan selama 20 menit dengan diselingi masa istirahat selama 90 detik setiap lima menit tikus tersebut berlari.Hasil: Tidak terdapat perbedaan bermakna untuk voltase dan durasi gelombang P pada semua kelompok perlakuan. Terjadi peningkatan voltase gelombang R pada kelompok latihan fisik aerobik empat minggu dan 12 minggu (p<0,05). Tidak terdapat perbedaan bermakna untuk voltase gelombang R pada kelompok henti latih. Terdapat pemanjangan durasi segmen dan interval PR pada kelompok latihan fisik aerobik empat minggu dan 12 minggu (terutama pada kelompok latihan fisik aerobik 4 minggu dengan p<0,05). Tidak terdapat perbedaan bermakna durasi segmen dan interval PR pada kelompok henti latih. Terjadi pemanjangan durasi repolarisasi ventrikel (durasi gelombang T, interval QT) pada kelompok latihan fisik aerobik empat minggu dan 12 minggu (terutama pada kelompok latihan fisik aerobik 4 minggu, p<0,05). Tidak terdapat perbedaan bermakna untuk durasi gelombang T, interval QT pada kelompok henti latih. Terjadi penurunan frekuensi denyut jantung istirahat pada kelompok latihan fisik aerobik empat minggu dan 12 minggu (terutama pada kelompok latihan fisik empat minggu, p<0,05). Tidak terdapat perbedaan bermakna untuk frekuensi denyut jantung istirahat pada kelompok henti latih.Kesimpulan: Terjadi perubahan aktivitas listrik jantung (interval QT, interval PR, durasi gelombang T dan voltase gelombang R), perubahan frekuensi denyut jantung istirahat tikus Wistar jantan setelah latihan fisik aerobik selama empat minggu dan 12 minggu. Henti latih mengembalikan perubahan aktivitas listrik jantung dan perubahan frekuensi denyut jantung istirahat tersebut.Kata kunci: Aktivitas listrik jantung, EKG, latihan fisik aerobik, henti latih    AbstractBackground: Aerobic training have long been known to give a good impact to body, aerobic training if been done routinely and with long period of time will make remodeling process to the heart. This remodeling process is not only occur in structure but also in heart electrical activity, several study reveal that this electrical activity may cause many form of aritmia, there also evidence that structural remodeling that also cause electrical changes is a persistent process, if structural remodeling persistent process, what will happen to heart electrical activity of this persistent structural remodeling after detraining is still less known. Methods: Electrocardiogram (ECG) is conducted in male Wistar rat that have completed 4 weeks, 12 weeks aerobic training, 4 weeks and 12 weeks aerobic training with 4 weeks detraining. The speed that been use is 20 m/minute with 20 minute training duration and 90 second intermitten resting interval for every 5 minute training. Results: There is no difference for P wave voltage and duration in all groups. R wave voltage is increase in 4, 12 weeks aerobic training group (p < 0.05). There is no significant difference for R wave voltage in detraining group. PR segment and interval is prolonged in 4, 12 weeks aerobic training group (especially in 4 weeks aerobic training group, p < 0.05). There is no significant difference for PR segment and interval in detraining group. Ventricular repolarization time (T wave duration, QT interval) is prolonged in 4, 12 weeks aerobic training group (especially in 4 weeks aerobic training group, p < 0.05). There is no significant difference for T wave duration and QT interval in detraining group. Resting heart rate is lower in 4, 12 weeks aerobic training group (especially in 4 weeks aerobic training group, p<0.05). There is no significant difference for resting heart rate in detraining group.Conclusion: Male Wistar rat heart electrical activity (QT interval, PR interval, T wave duration time and R wave voltage) and resting heart rate change after 4 weeks and 12 weeks aerobic training. Detraining restore that changes. Keywords: Heart electrical activity, Electrocardiogram (ECG), Aerobic training, Detraining Keywords: Heart electrical activity, ECG, Aerobic training, Detraining
Ekspresi Protein Foxo1 dan Gen Glukosa 6 Fosfatase pada Tikus dengan Diet Restriksi Vitamin B12 Imelda Rosalyn Sianipar; Trinovita Andraini; Dewi Irawati Soeria Santoso; Irena Ujianti; Marcel Antoni
Jurnal Kedokteran Meditek Vol 28 No 2 (2022): MEI-AGUSTUS
Publisher : Fakultas Kedokteran Universitas Kristen Krida Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36452/jkdoktmeditek.v28i2.2351

Abstract

Pada penelitian awal didapatkan diet restriksi vitamin B12 menyebabkan hiperhomosisteinemia dan resistensi insulin, yang ditandai oleh hiperglikemia dan meningkatnya nilai Homeostatic Model Assessment for Insulin Resistance (HOMA-IR). Dengan menggunakan sampel jaringan biologik tersimpan, hati tikus Spraque-Dawley dari penelitian tersebut, penelitian lanjutan ini bertujuan mengetahui penyebab hiperglikemia, dalam hubungannya dengan proses glukoneogenesis, dengan melihat ekspresi forkhead box protein-O1 (FoxO1) dan gen glukosa 6 fosfatase (G6Pc). Adapun sampel terdiri dari 4 kelompok: kelompok kontrol dan tiga kelompok dengan diet restriksi vitamin B12 masing-masing selama 4, 8, dan 12 minggu. Ekspresi FoxO1 diperiksa dengan metode kuantitatif Western-Blot, sedangkan gen G6Pc diperiksa dengan metode real-time Polymerase Chain Reaction (rt-PCR). Hasil yang diperoleh, tidak terdapat perbedaan bermakna ekspresi FoxO1 (P > 0,05) dan gen G6Pc (P > 0,05) antara kelompok tikus kontrol dan kelompok diet restriksi vitamin B12. Hal ini menunjukkan, hiperglikemia pada diet restriksi vitamin B12 tidak terkait dengan glukoneogenesis. Pada kondisi resistensi insulin, insulin masih dapat meneruskan efek metaboliknya melalui jalur lain, seperti melalui reseptor yang memiliki kemiripan struktur dan fungsi dengan reseptor insu   lin. Penyebab-penyebab lain terjadinya hiperglikemia seperti gangguan utilisasi glukosa oleh sel dan gangguan proses glikogenesis perlu diteliti lebih lanjut.
Peran HIIT dan MICT terhadap Kadar Angiotensin II, Ekspresi Fibronektin, dan Gambaran Histologis Aorta pada Model Tikus Hipertensi Induksi NOS Inhibitor Naibaho, Fitri Boru; Santoso, Dewi Irawati Soeria; Paramita, Nurul; Jalma, Monica Dwi; Goenarjo, Roman Ardian; Sianipar, Imelda Rosalyn
eJournal Kedokteran Indonesia Vol. 12 No. 2 (2024): Vol. 12 No. 2 - Agustus 2024
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Salah satu mekanisme adaptif terhadap hipertensi adalah perubahan struktur pembuluh darah, sehingga perubahan tekanan darah berhubungan dengan perubahan struktur aorta. High-Intensity Interval Training (HIIT) dan Moderate-Intensity Continuous Training (MICT) berperan menurunkan hipertensi dan memperbaiki kerusakan pembuluh darah. Tujuan penelitian ini ialah untuk mengetahui perbandingan HIIT dan MICT terhadap kadar angiotensin dan fibronektin tikus hipertensi yang diinduksi N(gamma)-nitro-L-arginine methyl ester (L-NAME) dengan desain penelitian eksperimental. Penelitian ini dilakukan di empat Laboratorium di lingkungan Fakultas Kedokteran Universitas Indonesia pada bulan Maret 2023–Januari 2024. Penelitian ini menggunakan 24 ekor tikus putih jantan galur Wistar (Rattus Novergicus) usia 10–13  minggu dengan berat 220–300 g di awal penelitian. Tikus dibagi menjadi empat kelompok yaitu: tikus kontrol, tikus yang diberi L-NAME secara oral selama 5 minggu, tikus L-NAME yang diberi perlakuan HIIT dan kelompok tikus L-NAME yang diberi perlakuan MICT. Penelitian awal menunjukkan tikus HIIT mengalami penurunan berat badan yang bermakna  dibandingkan kontrol. Pada tikus yang diinduksi L-Name, tekanan darah  meningkat dibandingkan kelompok kontrol. Setelah perlakuan 5 minggu,tekanan darah pada kelompok L-NAME, HIIT dan MICT menurun tidak bermakna  dibandingkan dengan kontrol.  Kadar angiotensin II pada kelompok HIIT menunjukkan penurunan tekanan darah secara bermakna  dibandingkan MICT dan HIIT secara bermakna  lebih berperan dalam menurunkan kadar fibronektin dibandingkan MICT. Disimpulkan induksi L-NAME dapat menyebabkan hipertensi dan HIIT dapat  menurunkan berat badan, kadar angiotensin II, dan kadar fibronektin dibandingkan MICT. HIIT lebih berperan menurunkan risiko hipertensi dibandingkan MICT.
Effect of Hibiscus sabdariffa Linn. on the development of atherosclerosis in diabetes mellitus: a rapid review Fakhrul Gamal Putra; Nurul Paramita; Dewi Irawati Soeria Santoso
Indonesian Journal of Biomedicine and Clinical Sciences Vol 57 No 1 (2025)
Publisher : Published by Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/inajbcs.v57i1.19981

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Atherosclerosis is closely linked to disturbances in lipid metabolism and chronic inflammation. In diabetes mellitus (DM), hyperglycemia exacerbates atherosclerosis by inducing structural changes in blood vessel endothelium through chronic inflammation triggered by oxidized low-density lipoprotein (OxLDL) formation. Inflammation plays a major role in atherosclerosis pathogenesis, with OxLDL, nuclear factor kappa B (NFkB), intercellular adhesion molecule-1 s(ICAM-1), and vascular cell adhesion molecule-1 (VCAM-1) being crucial players in this process. Hibiscus (Hibiscus sabdariffa Linn.) a medicinal plant rich in polyphenols, is believed to have a role to prevent atherosclerosis development through its antioxidant activity, inhibiting vascular smooth muscle cell (VSMC) proliferation, and modulating inflammation pathways. This review explores the potential of hibiscus to prevent atherosclerosis development in DM, focusing on its phytochemical compounds and their impact on oxidative stress, hyperlipidemia, and inflammation pathways. The review highlights the importance of targeting VSMC proliferation, migration, and inflammatory responses mediated by ICAM-1 and VCAM-1 to attenuate atherosclerosis progression. Hibiscus shows promise as a natural treatment for atherosclerosis, but further research is still needed to fully understand its mechanisms and therapeutic potential.