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Prolonged-heated High-Fat Diet Increase the Serum LDL Cholesterol Level and Induce the Early Atherosclerotic Plaque Development in Wistar Rats Yurina, Valentina; Yunita, Ema Pristi; Raras, Tri Yudani Mardining; Rudijanto, Achmad; Handono, Kusworini
Journal of Tropical Life Science Vol 9, No 1 (2019)
Publisher : Journal of Tropical Life Science

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Rats are one of the most widely used animal models in health research. However, since rats are relatively resistant to atherosclerosis, the transgenic rats often used to study atherosclerosis in rats. Our study suggests a prolonged-heated lipid to induce atherosclerosis in rats, therefore provide a more low-cost option to study atherosclerosis in rats. Aims of this study is to compare the effect of heated high-fat diet (HFD) to the LDL and HDL cholesterol level and foam cell formation in the Wistar rat animal model. Rats were divided into three groups, control group was given with the normal diet, and the other two treated groups received oxidized HFD (heated HFD) and HFD, respectively. The heated HFD contain lard that was previously heated at 190Â°C for 24 h. Diet was given for 8 weeks. The serum LDL and HDL cholesterol level were measured before and 4th and 8th weeks after treatment with help of colorimetric measurement. The aorta analyzed for the foam cell formation after HE staining using the light microscope.Â The prolonged- heated HFD significantly increased the LDL cholesterol from the 4th week of the treatment (p = 0.023). The rats aortic from HFD and heated HFD treated groups showed a mononuclear cells infiltration and the early foam cell formation. The heating process of the lipid caused lipid oxidation which significantly increased the LDL cholesterol level of the animal model and foam cells formation. This study suggests that Wistar rats with heated HFD could demonstrated early atherosclerosis plaque development.

Proteinuria Severity in Lupus Nephritis is Associated with Anti-dsDNA Level and Immune Complex Deposit Location in Kidney Engli, Katherina; Handono, Kusworini; Eko, Mudjiwijono Handaru; Susianti, Hani; Gunawan, Atma; Kalim, Handono
Journal of Tropical Life Science Vol 8, No 3 (2018)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.08.03.03

Lupus nephritis (LN) is one of the manifestations of Systemic Lupus Erythematosus (SLE), with proteinuria being one of the clinical manifestations. The proteinuria pathogenesis is associated with anti-dsDNA antibody and the location of immune complex deposits within the kidney. This study aims to investigate the correlation of the severity of proteinuria with the location of immune complex deposits and the level of anti-dsDNA antibody in LN. Data were collected in cross-section. Fifty-three patients with LN in Saiful Anwar Hospital Malang, who underwent renal biopsy, were included. Hematoxylin-eosin staining and immunofluorescence analysis were used to assign subjects to different histopathological classes and determine the immune complex deposits. The spot urine samples were evaluated using the dipstick method for semi-quantitative proteinuria. The anti-dsDNA antibody levels were evaluated using the enzyme-linked immunosorbent assay (ELISA). Turbidity and enzymatic tests were conducted to elucidate urine protein and creatinine content, respectively. The level of proteinuria is significantly different among the different locations of immune complex based on the dipstick and protein/creatinine methods (p = 0.021 and p = 0.005, respectively). There was a significant correlation between anti-dsDNA antibody level and the severity of proteinuria (r = 0.326 based on dipstick and r = 0.28 based on protein/creatinine method). Thus, proteinuria in LN is determined by anti-dsDNA level and the location of immune complex deposits in the kidney.

The Correlation between Serum Concentration of Vitamin D with Vitamin D Receptor Expression and Disease Activity in Indonesian Patients with Systemic Lupus Erythematosus: Preliminary Study Handono, Kusworini; Tanuwijaya, Laksmi Karunia; Fitri, Loeki Enggar; Kalim, Handono
Journal of Tropical Life Science Vol 4, No 2 (2014)
Publisher : Journal of Tropical Life Science

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The vitamin D role on the immune response of systemic lupus erythematosus (SLE) patient is mediated by vitamin D receptor (VDR). Low level of vitamin D correlated with disease activity in SLE patients, and circulating levels of activated vitamin D (1,25(OH)2D) contribute to VDR protein levels and its function. The objective of this study was to determine the correlation between vitamin D status with expression of VDR in peripheral blood mononuclear cell (PBMC) and the disease activity in SLE patients. The Research Subjects were 15 SLE patients (ACR 1997 criteria) from the Rheumato-Immunology Division, dr. Saiful Anwar Hospital, Malang and 5 healthy controls. Serum vitamin D (25(OH)D3) level was assessed using ELISA method. VDR expression in PBMC was assessed using immunocytochemistry technique. The disease activity was measured by Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) score. This study showed no difference on VDR expression in PBMC between patient and healthy control group, but patient with vitamin D deficiency had lower VDR expression in PBMC than the other group. No difference on SLEDAI score between the group. Vitamin D status correlated positively with VDR expression in PBMC (p < 0,035, r = 0,473). However vitamin D status did not correlate with disease activity scores (p = 0,686).

The Correlation between Serum Concentration of Vitamin D with Vitamin D Receptor Expression and Disease Activity in Indonesian Patients with Systemic Lupus Erythematosus: Preliminary Study Kusworini Handono; Laksmi Karunia Tanuwijaya; Loeki Enggar Fitri; Handono Kalim
Journal of Tropical Life Science Vol. 4 No. 2 (2014)
Publisher : Journal of Tropical Life Science

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The vitamin D role on the immune response of systemic lupus erythematosus (SLE) patient is mediated by vitamin D receptor (VDR). Low level of vitamin D correlated with disease activity in SLE patients, and circulating levels of activated vitamin D (1,25(OH)2D) contribute to VDR protein levels and its function. The objective of this study was to determine the correlation between vitamin D status with expression of VDR in peripheral blood mononuclear cell (PBMC) and the disease activity in SLE patients. The Research Subjects were 15 SLE patients (ACR 1997 criteria) from the Rheumato-Immunology Division, dr. Saiful Anwar Hospital, Malang and 5 healthy controls. Serum vitamin D (25(OH)D3) level was assessed using ELISA method. VDR expression in PBMC was assessed using immunocytochemistry technique. The disease activity was measured by Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) score. This study showed no difference on VDR expression in PBMC between patient and healthy control group, but patient with vitamin D deficiency had lower VDR expression in PBMC than the other group. No difference on SLEDAI score between the group. Vitamin D status correlated positively with VDR expression in PBMC (p < 0,035, r = 0,473). However vitamin D status did not correlate with disease activity scores (p = 0,686).

Prolonged-heated High-Fat Diet Increase the Serum LDL Cholesterol Level and Induce the Early Atherosclerotic Plaque Development in Wistar Rats Valentina Yurina; Ema Pristi Yunita; Tri Yudani Mardining Raras; Achmad Rudijanto; Kusworini Handono
Journal of Tropical Life Science Vol. 9 No. 1 (2019)
Publisher : Journal of Tropical Life Science

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

Rats are one of the most widely used animal models in health research. However, since rats are relatively resistant to atherosclerosis, the transgenic rats often used to study atherosclerosis in rats. Our study suggests a prolonged-heated lipid to induce atherosclerosis in rats, therefore provide a more low-cost option to study atherosclerosis in rats. Aims of this study is to compare the effect of heated high-fat diet (HFD) to the LDL and HDL cholesterol level and foam cell formation in the Wistar rat animal model. Rats were divided into three groups, control group was given with the normal diet, and the other two treated groups received oxidized HFD (heated HFD) and HFD, respectively. The heated HFD contain lard that was previously heated at 190Â°C for 24 h. Diet was given for 8 weeks. The serum LDL and HDL cholesterol level were measured before and 4th and 8th weeks after treatment with help of colorimetric measurement. The aorta analyzed for the foam cell formation after HE staining using the light microscope.Â The prolonged- heated HFD significantly increased the LDL cholesterol from the 4th week of the treatment (p = 0.023). The rats aortic from HFD and heated HFD treated groups showed a mononuclear cells infiltration and the early foam cell formation. The heating process of the lipid caused lipid oxidation which significantly increased the LDL cholesterol level of the animal model and foam cells formation. This study suggests that Wistar rats with heated HFD could demonstrated early atherosclerosis plaque development.

Possible Role of Akt in Mossy Fiber Sprouting: Akt Activity and CA3 Mossy Fiber Sprouting in a Kainate Model of Epilepsy: Akt Activity and CA3 Mossy Fiber Sprouting in Epilepsy husna, Machlusil; Handono, Kusworini; Sujuti, Hidayat; Aulanni'am, Aulanni'am
Journal of Tropical Life Science Vol. 14 No. 3 (2024): In Press
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.09

The most prevalent pathological phenomenon observed in patients with epilepsy is hippocampal mossy fiber sprouting (MFS), which is thought to be associated with epileptic progression, such as worsening seizure control, cognitive function, and behavior. MFS is discovered in the dentate gyrus and the hippocampal Cornu Ammon 3 (CA3) area. The CA3 area is involved in memory, so disturbances in that area can affect memory impairment in patients with epilepsy. The mammalian target of rapamycin complex-1 (mTORC1) is also associated with MFS. Akt is an upstream activator of mTORC1 and a downstream target of mammalian target of rapamycin complex-2 (mTORC2) and plays a role in cytoskeleton organization. We analyzed Akt activity and MFS in the CA3 zone in an in vitro model of kainate-induced epilepsy. We divided organotypic hippocampal slice cultures (OHSCs) into a kainate (epilepsy) group and a control (untreated) group. On the 10th day in vitro (DIV), the kainate group was exposed to 8 µM kainic acid for 48 h, diluted in the medium. At 32 DIV, we measured Akt activity through western blotting and CA3 MFS through synaptoporin fluorescence intensity observed using confocal laser scanning microscopy. We found that Akt activity increased significantly (p = 0.000) in the kainate group, and the synaptoporin fluorescence intensity also increased in the stratum oriens of the CA3 area (p = 0.049) in the kainate group. Our findings implied that Akt may play a role in MFS development. Because Akt is a main downstream target of mTORC2, mTORC2 may also be involved in MFS development. Further research is required to clarify these findings.

Possible Role of Akt in Mossy Fiber Sprouting: Akt Activity and CA3 Mossy Fiber Sprouting in a Kainate Model of Epilepsy: Akt Activity and CA3 Mossy Fiber Sprouting in Epilepsy husna, Machlusil; Handono, Kusworini; Sujuti, Hidayat; Aulanni'am, Aulanni'am
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.09

The most prevalent pathological phenomenon observed in patients with epilepsy is hippocampal mossy fiber sprouting (MFS), which is thought to be associated with epileptic progression, such as worsening seizure control, cognitive function, and behavior. MFS is discovered in the dentate gyrus and the hippocampal Cornu Ammon 3 (CA3) area. The CA3 area is involved in memory, so disturbances in that area can affect memory impairment in patients with epilepsy. The mammalian target of rapamycin complex-1 (mTORC1) is also associated with MFS. Akt is an upstream activator of mTORC1 and a downstream target of mammalian target of rapamycin complex-2 (mTORC2) and plays a role in cytoskeleton organization. We analyzed Akt activity and MFS in the CA3 zone in an in vitro model of kainate-induced epilepsy. We divided organotypic hippocampal slice cultures (OHSCs) into a kainate (epilepsy) group and a control (untreated) group. On the 10th day in vitro (DIV), the kainate group was exposed to 8 µM kainic acid for 48 h, diluted in the medium. At 32 DIV, we measured Akt activity through western blotting and CA3 MFS through synaptoporin fluorescence intensity observed using confocal laser scanning microscopy. We found that Akt activity increased significantly (p = 0.000) in the kainate group, and the synaptoporin fluorescence intensity also increased in the stratum oriens of the CA3 area (p = 0.049) in the kainate group. Our findings implied that Akt may play a role in MFS development. Because Akt is a main downstream target of mTORC2, mTORC2 may also be involved in MFS development. Further research is required to clarify these findings.

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