Dwi Cahyani Ratna Sari
Departement Of Anatomy, Faculty Of Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia

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Neuroprotective effect of vitamin D3 toward apoptosis induced by ethanol in CA1 pyramidal cells of rat hippocampus Junaedy Yunus Djoko Prakosa Dwi Cahyani Ratna Sari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 44, No 01 (2012)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1610.308 KB)

Abstract

As an antioxidant, Vitamin D3 can protect neurons from damage caused by oxidative stress.Ethanol is known to have neurotoxic effects by inducing an increase in oxidative stress. One ofthe brain regions that is most sensitive to neurotoxic effects induced by ethanol is hippocampus,especially its CA1 region. This study was aimed to determine the neuroprotective effects ofvitamin D3 in preventing the apoptosis in CA1 hippocampal pyramidal cells induced by ethanol.Fifteen male Wistar rats (Rattus norvegicus) were randomly divided into three groups. The controlgroup was given daily normal saline solution intraperitoneally. The ethanol group was given20% ethanol solution at a dose of 3 g/kg BW/day intraperitoneally. The vitamin D3 group wasgiven vitamin D3 1 μg/kg BW/day in 20% ethanol solution at a dose of 3 g/kg BW/dayintraperitoneally. After 30 days, the rats were sacrificed, their brains were perfused with PBSfollowed by fixative and the hippocampus was dissected for histological preparations.Immunohistochemical staining for caspase was performed. Percentage of apoptotic CA1hippocampal pyramidal cells was calculated. The results showed there was no significant difference(p> 0.05) on the total number of pyramidal cells between the control group (20.52 ± 1.31), theethanol group (19.02 ± 1.60), and the vitamin D3 group (21. 06 ± 0.70) per field of view.However there was a significant increase (p<0.05) in the percentage of apoptotic CA1hippocampal pyramidal cells in in the ethanol group (16.09 ± 0.67%) compared to the controlgroup (10.60 ± 0.95%). Vitamin D3 significantly (p<0.05) prevented an increase in the percentageof apoptotic CA1 hippocampal pyramidal cells in the vitamin D3 group (10.82 ± 0.64%). Inconclusion, vitamin D3 had a neuroprotective effect to prevent an increase in apoptosis in CA1hippocampal pyramidal cells to the neurotoxic effects induced by ethanol.
Prefrontal cortex cell proliferation of adult rats after chronic stress treated with ethanolic extract of Centella asiatica (L) Urban. Yuniasih Mulyani Jubeliene Taihuttu; Ginus Partadiredja; Dwi Cahyani Ratna Sari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 48, No 1 (2016)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1127.045 KB) | DOI: 10.19106/JMedSci004801201601

Abstract

The decrease of proliferation level of cells in several regions of adult brain is found afterstress exposure. One of such area is prefrontal cortex. Herbal medicine as antistresshas been used widely. Centella asiatica (L) Urban extract was reported to have potentcompounds to increase brain function. The objective of this study is to investigate theeffects of ethanolic extract C. asiatica on cell proliferation of the adult prefrontal cortexin rats (PFC) after chronic stress. Adult male Sprague-Dawley rats, weighing 260-390g were randomly assigned into six experimental groups, with five rats per group, i.e.Group 1 as nomal control without chronic stress, Group 2 as stress control, Group 3 aspositive control given fluoxetine, Group 4-6 as treatment groups given 150; 300 and 600of ethanolic extrac C. asiatica, respectively. Extract were administered orally to the ratsfollowing a period of restraint duration of 6 hours/day for 21 days. Bromodeoxyuridine(BrdU) immunohistochemistry was used to label the proliferated cells. Physical fractionatormethod was used to estimate the total number of proliferated cells. One-way analysis ofvariance (ANOVA) followed by Tukey post hoc test was used to evaluate the differencebetween groups. BrdU-labeled cells on medial prefrontal cortex were as follows:1715.3±1345.1 (Group 1), 2659.2±2250.6 (Group 2), 4077.4±2415.3 (Group 3),1784.1±908.3 (Group 4), 3056.6±4263.3 (Group 5), and 2153.4±2259.4 (Group 6).No significance difference between groups was observed (p>0.05). In conclusion, theadministration of ethanolic extract of C. asiatica does not influence cell proliferation onprefrontal cortex of rats after chronic stress.
Prolonged Kidney Ischemia-Reperfusion Injury Associates with Inflammation, Vascular Remodelling, and Myofibroblast Formation Nur Arfian*; Hilma Kholida Ats-tsani; Pratiwi Indah Sayekti; Dwina Agrila Lakabela; Amelia Amelia; Toni Febriyanto; Hana Rutyana Putri Antonio; Dian Prasetyo Wibisono; Dwi Cahyani Ratna Sari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 50, No 1 (2018)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1436.153 KB) | DOI: 10.19106/JMedSci005001201801

Abstract

Prolonged kidney ischemia-reperfusion injury (IRI) is the important risk factor for leading to chronic kidney disease (CKD). Persistent hypoxia and inflammation are considered as the main pathogenesis of chronic injury, followed by myofibroblast expansion and fibrosis process. Tubular injury, cell proliferation, and vasoconstriction, as acute compensatory responses, are restored in chronic phase. The aim of the study was to investigate the relation between inflammation, vascular remodeling, and myofibroblast formation as response to ischemia injury after prolonged kidney ischemia-reperfusion (I/R). Fifteen male Swiss mice aged 3-4 months were used as kidney I/R injury model after bilateral pedicle renal clamping. Rats were divided into 3 groups with five rats in each group i.e. control group (sham operation/SO), acute I/R model (IR1), and chronic I/R model (IR12). PAS staining was used for scoring tubular injury. Fibrosis was assessed using sirius red and a-SMA immunostaining for myofibroblast expansion. PCNA and CD68 immunostaining were used for identifying cell proliferation and macrophage infiltration. RT-PCR was conducted for assessing MCP-1, HIF-1a, and ppET-1 expression, which were quantified using ImageJ software. Data were analyzed using one way ANOVA and Kruskal-Wallis test with significance level of p<0.05. Significantly increase of tubular injury score (p<0.001) and PCNA positive cell (p<0.001) in IR1 group compared to SO were observed, otherwise HIF-1a of IR12 enhanced (p<0.05). Macrophage cell count (p<0.01) and MCP-1 expression (p<0.05), were significantly increase in IR1 and IR12 injury, compared to SO. Wall thickness of arteries was significantly increase (p<0.05) as well as decrease of vascular lumen area (p<0.05), followed by enhancement of ppET-1 expression (p<0.01) in IR1 group and restored significantly (p<0.05) in IR12 group. Fibrosis fraction-area and myofibroblast expansion were significantly increase gradually from IR1 to IR12 injury (p<0.01). In conclusion, prolonged kidney I/R injury induces the sustainability of hypoxia and inflammatory response, which promotes myofibroblast formation, and decrease the response of vascular remodelling. 
Ethanolic extract of the Centella asiatica (L.) Urb. leaf decreases cerebellar brain-derived neurotrophic factor (BDNF) levels in rats after chronic stress Dwi Cahyani Ratna Sari; Desby Juananda; Mawaddah Ar-Rochmah; Muhammad Mansyur Romi; Nur Arfian
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 50, No 2 (2018)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (770.994 KB) | DOI: 10.19106/JMedSci005002201801

Abstract

Chronic stress produces glucocorticoid-induced neurotoxicity that may lead to alterations of the brain-derived neurotrophic factor (BDNF) concentration in the brain. Cerebellum is known to be severely affected by glucocorticoids-associated oxidative damage. Centella asiatica (L.) Urb. may protect neurons from oxidative damage. This study aimed to investigate the effect of ethanolic extract of C. asiatica (L.) Urb. leaf on the rat cerebellar BDNF levels following stress. Twenty young-adult male Sprague Dawley rats were randomly assigned into four experimental groups. The stress control group received aquadest, and the other groups were treated with different doses of the C. asiatica (L.) Urb. extract i.e 150 (CeA150), 300 (CeA300) and 600 (CeA600) mg/kg body weight/day orally, respectively and followed by chronic footshock stress for 28 days. Upon completion of the experimental period, all animals were sacrificed and the cerebellar was isolated. The BDNF levels from the cerebellar tissue lysate was measured using ELISA. The mean BDNF levels of the cerebellar tissue in the stress control, CeA150, CeA300 and CeA600 groups were 1217.10±301.40; 771.46±241.45; 757.05±268.29; and 627.00±246.02 pg/mL, respectively. Post-hoc analysis showed a significant difference between the control and treatment groups (p< 0.05). In conclusion, the ethanolic extracts of the C. asiatica (L.) Urb. leaf decrease the cerebellar BDNF levels in rats after chronic stress.
Increased blood-brain barrier permeability correlate with microglial activation at hippocampal CA1 region in acute and chronic bilateral common carotid artery ligation in rats Dian Prasetyo Wibisono; Nur Arfian; Handoyo Pramusinto; Fauziyatul Munawaroh; Yeshua Putra Krisnugraha; Daniel Agriva Tamba; Dwi Cahyani Ratna Sari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 54, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19106/JMedSci005402202201

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Inflammatory processes might play a key role in the pathogenesis of post-stroke epilepsy. The activation of microglia and release of vascular cell adhesion molecule-1 (VCAM1) might induce blood-brain barrier (BBB) disintegration. However, the influence of such pathomechanisms in the generation of post-stroke epilepsy is still not clear. We investigated whether cerebral ischemia exerts effects on inflammation in the hippocampus by measuring the hippocampal injury score, expression of a microglial marker, and expression of VCAM1 in rats. A total of 24 Sprague Dawley rats were randomized into four groups with 6 rats in eachgroup i.e. sham operation (SO) as control, carotid ligation 1 (GCL1) as an acute model, carotid ligation 3 (GCL3) as a subacute model, and carotid ligation 7 (GCL7) as a chronic model. Immunostaining for microglia marker (CD68) was measured in rat brain tissue sections. The VCAM1 expression was evaluated by reverse transcription-polymerase chain reaction (RT-PCR). Cerebral ischemia increased the amount of microglial immunostaining and expression of VCAM1. The hippocampal injury score and microglial immunopositivity were significantly correlated with the duration of brain ischemia. We conclude that cerebral ischemia is correlated with neuroinflammatory reaction and disturbance of BBB permeability, and the correlation of those molecular impairments with the generation of post-stroke epilepsy remains to be elucidated.
Pengaruh Durasi Pemberian Ekstrak Etanol Pegagan (Centella asiatica sp.) terhadap Memori Spasial Tikus Putih (Rattus norvegicus) pascastres Listrik Dwi Cahyani Ratna Sari; Reza Satria Pratama; Soedjono Aswin; Sri Suharmi
Mutiara Medika: Jurnal Kedokteran dan Kesehatan Vol 11, No 2 (2011)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/mmjkk.v11i2.932

Abstract

Beberapa penelitian telah dilakukan berkaitan dengan kemampuan pegagan sebagai neurotropik dan neuroprotektif. Tujuan penelitian ini untuk mengungkapkan pengaruh durasi pemberian ekstrak etanol pegagan dalam peningkatan memori spasial tikus putih pascastres. Pada penelitian ini, 21 tikus jantan, usia delapan minggu dibagi dalam tiga kelompok: dua kelompok perlakuan (K1 dan K2) dan satu kelompok kontrol (KN). Kelompok perlakuan menerima ekstrak ethanol pegagan sebesar 150 mg/kgBB/ ml secara oral selama empat(K1) dan enam(K2) minggu. Kelompok kontrol akan menerima aquades 1 ml selama enam minggu. Semua kelompok akan diuji memori dengan menggunakan maze radial delapan lengan selama 12 hari sebelum dan setelah perlakuan. Uji stres listrik selama 10 menit dilakukan sebelum perlakuan. Hasil penelitian menunjukkan persentase tertinggi ketepatan pemilihan lengan dalam uji maze radial 2 (UMR2) untuk KN, K1 dan K2 masing-masing sebesar 23,6%, 44,8% dan 91,71%, dengan rerata persentase masing-masing sebesar 10,24%, 14,12% dan 53,33%. Uji Mann-Whitney menunjukkan bahwa persentase ketepatan pemilihan lengan berbeda secara bermakna antara satu kelompok dengan kelompok lainnya. Kesimpulannya adalah pegagan mampu meningkatkan memori spasial tikus putih pascastres dan pemberian ekstrak etanol pegagan selama enam minggu memberikan efek peningkatan memori yang lebih signifikan dibanding pemberian selama empat minggu.
Lamanya Pemberian Ekstrak Etanol Centella asiatica sp. Meningkatkan Memori Spasial Tikus Pasca Stres Listrik Dwi Cahyani Ratna Sari; Reza Satria Pratama; Soedjono Aswin; Sri Suharmi
Mutiara Medika: Jurnal Kedokteran dan Kesehatan Vol 13, No 3 (2013)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/mmjkk.v13i3.2479

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Beberapa penelitian telah dilakukan berkaitan dengan kemampuan Pegagan (Centella asiatica) sebagai neurotropik dan neuroprotektif. Tujuan penelitian ini untuk mengungkapkan pengaruh durasi pemberian ekstrak etanol C. asiatica dalam peningkatan memori spasial tikus putih pasca stres. Pada penelitian ini, 21 tikus jantan, umur delapan minggu dibagi dalam tiga kelompok: dua kelompok perlakuan (K1 dan K2) dan satu kelompok kontrol (KN). Kelompok perlakuan menerima ekstrak ethanol C. asiatica sebesar 150 mg/kgBB/ml secara oral selama empat (K1) dan enam (K2) minggu. Kelompok kontrol menerima aquades 1 ml selama enam minggu. Semua kelompok akan diuji memori dengan menggunakan maze radial delapan lengan selama 12 hari sebelum dan setelah perlakuan. Uji stres listrik selama 10 menit dilakukan sebelum perlakuan. Hasil penelitian menunjukkan persentase tertinggi ketepatan pemilih­an lengan dalam uji maze radial 2 (UMR2) untuk KN, K1 dan K2 masing-masing sebesar 23,6%, 44,8% dan 91,71%, dengan rerata persentase masing-masing sebesar 10,24%, 14,12% dan 53,33%. Uji Mann- Whitney menunjukkan bahwa persentase ketepatan pemilihan lengan berbeda secara bermakna antara satu kelompok dengan kelompok lainnya. Disimpulkan bahwa C. asiatica mampu meningkatkan memori spasial tikus putih pasca stres dan pemberian ekstrak etanol C. asiatica selama enam minggu memberikan efek peningkatan memori yang lebih signifikan dibanding pemberian selama empat minggu.Previous studies have shown the ability of Centella asiatica in enhancing memory by mean of its neurotrophic and neuroprotective effects. The objective of this study was to reveal the effect of C. asiatica ethanolic extract’s administration duration on spatial memory in rat after electric-stress induced. Eight weeks male rats (n=21) were devided randomly into three groups, i.e. two treated groups (K1 and K2) and one control group (KN). The rats were induced by 10 minutes electrical shock and given 150 mg/ kgBW oral C. asiatica ethanolic extract daily for four (K1) and six (K2) weeks. Control groups received 1 mL aquadest daily. The results showed that the performance which assessed by measuring the percent­age of correct-entered arm showed the maximum percentage on the accuracy of right-entering arm in radial arm maze test 2 (UMR2) of KN, K1 and K2 are respectively 23,6%, 44,8% and 91,71%, whereas the mean of percentage are 10,24%, 14,12% and 53,33%. Mann-Whitney test showed that there was significant difference among treated groups and control group (p0,05). It is concluded that C. asiatica was able to enhance spatial memory and the effect is more prominent in the group with longer period of administration duration of Pegagan ethanolic extract.
IS CADAVER STILL NEEDED IN MEDICAL EDUCATION? Muhammad Mansyur Romi; Nur Arfian; Dwi Cahyani Ratna Sari
Jurnal Pendidikan Kedokteran Indonesia: The Indonesian Journal of Medical Education Vol 8, No 3 (2019): November
Publisher : Asosiasi Institusi Pendidikan Kedokteran Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.233 KB) | DOI: 10.22146/jpki.46690

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Background: Medical education has been developing very rapidly. Cadavers, which can serve as very important learning resources, need special concern for their availability and utility.Methods: This narrative review is based on related articles freely downloaded which discuss the role and availability of cadavers worldwide. The recent Indonesian condition with Universitas Gadjah Mada as a case will be described.Results: Cadavers play important roles in several aspects, from bioethics and behavioral development until clinical skills, in basic education and especially in postgraduate and advance clinical training. The availability of cadavers has declined significantly, and as a result, the impacts must be considered. Most cadavers are unidentified bodies, eventhough presently a body donation program is recommended as the alternative source.Conclusion: Currently in Indonesia, timely participation is needed from various stakeholders to support effective and efficient cadaver availability and utility. Additional learning resources are needed to be developed in order to assure quality improvement of medical education.Keywords: cadaver, medical education, bioethics, unidentified bodies, body donation.
Correlation between Nephrin expression, tubular injury, and serum Creatinine level in kidney failure model with 5/6 subtotal Nephrectomy in mice M. Mansyur Romi; Dwi Cahyani Ratna Sari; Riky Setyawan; Fauziyatul Munawaroh; Nur Arfian
Indonesian Archives and Biomedical Sciences Vol 1 No 1 (2021): Indonesian Archives and Biomedical Sciences Vol 1(1): 2021
Publisher : Konsorsium Ilmu Biomedik Indonesia (KIBI)

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Background: Chronic kidney diseases (CKD) is characterized by glomerulosclerosis, tubular injury, and proteinuria. Neprin is the one of the most important protein involved in glomerular filtration but the mechanism of nephrin expression in chronic kidney failure is not well understood. Objective: We aims to elucidate the correlation between nephrin expression with tubular injury and serum creatinine level. Methods: We performed 5/6 subtotal nephrectomy (SN) in male strain Swiss mice to induce CKD. Sham operation was performed to control group (SO) (n=8). Mice were sacrificed in day 7 (SN7; n=8) and day 28 (SN28; n=8) after operation. We measure creatinine serum level to assess renal function. Tubular injury score was quantified using Periodic Acid Schiff (PAS) staining. Reverse transcriptase PCR (RT-PCR) was carried out to examine Nephrin mRNA expression. Results: 5/6 subtotal nephrectomy induced an increased of serum creatinine level in SN7 and SN28 (p<0,01 vs SO), followed by an increased of tubular injury score in SN7 and SN28 (p<0,01 vs SO). We confirmed reduction of nephrin expression in SN28 (p<0.01 vs SO). There was a negative correlation between nephrin and tubular injury (r=0.719, p<0.01) and the positive correlation between tubular injury and serum creatinine level (r=0.891, p<0.01). However, we did not find any significant correlation between nephrin expression and serum creatinine level. Conclusion: Nephrin expression downregulation might represent renal function disturbtion in CKD.
The accuracy of fine needle aspiration biopsy (FNAB) in diagnosing musculoskeletal lesion Sumpono, Auliya Suluk Brilliant; Yunus, Junaedy; Krisnugraha, Yeshua Putra; Dwianingsih, Ery Kus
Indonesian Journal of Biomedicine and Clinical Sciences Vol 56 No 01 (2024)
Publisher : Published by Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/inajbcs.v56i01.12462

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Fine needle aspiration biopsy (FNAB) is a relatively non-invasive diagnosis of musculoskeletal lesions that is very challenging in some musculoskeletal cases. This study aimed to evaluate the diagnostic utility of FNAB in musculoskeletal lesions. This was a retrospective cross-sectional study involving 180 musculoskeletal patients who underwent FNAB procedure, with or without ultrasound-guided in the Department of Anatomical Pathology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta between 2018 and 2021. The obtained data were then statistically analyzed for sensitivity, specificity, and accuracy. Of 180 cases, 90 (50%) were confirmed with histopathology examination. Further analysis revealed that 33 cases were confirmed positive, 45 patients were true negative, 2 cases were false positive, and 10 were cases false negative. The overall diagnostic sensitivity, specificity, and accuracy of FNAB in musculoskeletal lesions were 76.8, 95.7, and 83%, respectively. FNAB can lead to misinterpretation in cases that show similar morphologic features. Therefore, clinical information and imaging results are necessary to be correlated. In conclusion, FNAB is an efficient and effective technique for early diagnosis in musculoskeletal cases. FNAB can be used to establish the diagnosis of an inoperable tumor because of its high accuracy.