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All Journal Jurnal Kedokteran Meditek Journal of Biomedicine and Translational Research The Indonesian Biomedical Journal Jurnal Kedokteran Meditek
Dewi Irawati Soeria Santoso
Departemen Fisiologi Medik, Fakultas Kedokteran, Universitas Indonesia
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience Public Health

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Perubahan Aktivitas Listrik Jantung pada Tikus yang Diberi Latihan Fisik Aerobik Serta Henti Latih ., William; Santoso, Dewi Irawati Soeria; ., Isdoni; Siswandi, Riki
Jurnal Kedokteran Meditek Vol. 21 No. 55 Januari - April 2015
Publisher : Jurnal Kedokteran Meditek

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

Abstract

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
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

Abstract

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.
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

Abstract

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.
Co-Authors ., William Ahmad Aulia Jusuf Alfrina Hany Imelda Rosalyn Sianipar Irena Ujianti Isdoni Bustaman Jeanne J. Pawitan Marcel Antoni Nurhadi Ibrahim Nurjati Chairani Siregar Prasetyo S. Redjeki Rena Mailani Riki Siswandi Rustiana Tasya Ariningpraja Sophie Yolanda Sri Redjeki TATI NURHAYATI Trinovita Andraini Trinovita Andraini William .