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Effect of Oral Administration of Dehydroepiandrosterone on PCOS-Like Phenotype of Female C57BL/6 Mice Sundari, Ayu Mulia; Prakoso, Nurul Muhammad; Dwiranti, Astari; Abinawanto, Abinawanto; Boediono, Arief; Funahashi, Hiroaki; Bowolaksono, Anom
Jurnal Sain Peternakan Indonesia Vol 19 No 2 (2024)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jspi.id.19.2.111-116

Abstract

We aim to evaluate the efficacy and optimal dose of orally administered DHEA in the PCOS mice model by assessing their ovarian morphology and serum FSH, LH, and testosterone levels. Female C57BL/6 mice were divided into a control group (n=5, received daily injections of 0.2 ml sesame oil) and an experimental group, which was further classified into 1) D-45 group (n=5), 2) D-60 (n=5), and 3) D-90 group (n=5) that were treated with 45, 60, and 90 mg/Kg body weight of oral DHEA. After modelling, mice in the control group had a regular estrous cycle, while mice in all experimental groups had a disturbed estrous cycle. Ovarian histology showed several growing follicles and some corpora lutea (CL) in the control, D-60, and D-90 groups. However, some large antral follicles and decreased CL were observed in the D-45 group. Serum FSH was significantly lower in the D-45 group than in the control group (3.73 ± 0.12 vs. 5.28 ± 0.31 mIU/mL, P<0.01), but D-60 and D-90 groups had a similar FSH level to the control group (P>0.05). The serum level of LH and testosterone were significantly elevated in the D-45 group than in the control group (2.52 ± 0.43 vs. 1.30 ± 0.33 mIU/mL, P<0.01 and 1.80 ± 0.32 vs. 1.24 ± 0.23 ng/mL, P<0.01, respectively). Still, the level of LH and testosterone in the D-60 and the D-90 groups was comparable to the control group (P>0.05). Our study suggests that oral administration of DHEA is efficacious in establishing PCOS-like phenotype in mice with the suggested optimal dosage of 45 mg/Kg body weight.
Assessment of potential cellular toxicity of methylglyoxal on primary human epidermal keratinocytes Prakoso, Nurul Muhammad; Sundari, Ayu Mulia; Fadhilah; Abinawanto; Dwiranti, Astari; Bowolaksono, Anom
Current Research on Biosciences and Biotechnology Vol. 6 No. 2 (2025)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/crbb.2025.6.2/JYICDMXO

Abstract

Skin is the outermost layer of the human body, which is important to prevent damage by infection, ultraviolet radiation, and toxic materials. The impermeable barrier of the skin has to be maintained via skin regeneration to preserve its essential function. However, skin regeneration declines due to decreased cell proliferation during skin aging. In this study, we investigated the role of methylglyoxal (MGO) as a precursor of advanced glycation end-products (AGE), which have been reported as an emerging threat of early aging in the skin. Previous studies reported a reduction in survival of the HaCaT cell line exposed to 500 µM MGO. However, studies on primary keratinocytes are still limited. We evaluated the viability and proliferation of primary human epidermal keratinocytes (HEKa) under the exposure of MGO. We also employed H2DCFDA assay to quantify the generation of intracellular ROS due to MGO. Our study revealed a biphasic response in which lower doses of MGO (25 and 50 µM) increased viability, while the cellular toxicity began at higher concentrations of 100, 200, and 300 µM. The proliferation assay also suggests an overall reduction of primary epidermal keratinocytes exposed to 100 and 200 µM MGO after 24 and 48 hours of culture. Increasing ROS concentrations were also observed in cells treated with 100 and 200 µM MGO. Our data suggested that a lower concentration of MGO was required to induce cellular toxicity in primary human epidermal keratinocytes compared to the HaCaT cell line reported by another study, indicating different sensitivity to MGO.
Caffeine as a modulator of redox balance and migration in MDA-MB-231 triple-negative breast cancer cells Amira, Qanita Hana; Fadilah; Bowolaksono, Anom; Dwiranti, Astari
Current Research on Biosciences and Biotechnology Vol. 6 No. 2 (2025)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/crbb.2025.6.2/54S7U9DO

Abstract

Caffeine, a widely consumed stimulant, has demonstrated significant effects on cancer cell behavior, particularly in triple-negative breast cancer (TNBC) cells. This study investigates the impact of caffeine on MDA-MB-231 cells, focusing on cell morphology, viability, antioxidant gene expression, and cell migration. Caffeine at concentrations of 10 mM and above induced notable morphological changes, including cell rounding, detachment, and decreased cell density, indicative of cytotoxic effects and cellular stress responses such as apoptosis. Viability assays revealed a dose-dependent reduction in cell survival, with a substantial decline in total cell count at higher caffeine concentrations. The observed decrease in cell viability is associated with the downregulation of antioxidant genes SOD2 and GLO1, suggesting disrupted redox balance and impaired detoxification systems. A significant positive correlation was noted between SOD2 and GLO1 expression levels, indicating their interdependence in antioxidant defense mechanisms. Additionally, caffeine treatment impaired cell migration, as the wound healing assay shows, with higher concentrations significantly hindering wound closure. This effect on migration, relevant for metastasis, aligns with findings from previous studies on caffeine’s influence on cancer cell motility. The results suggest that 10 mM caffeine may serve as an optimal concentration for inducing cellular stress without immediate, widespread cell death, positioning it as a promising candidate for further therapeutic exploration.