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Journal : Universa Medicina

The effect of saffron serum on collagen density, inflammatory gene expression, and autophagy in UVB-exposed Wistar rats Octavia, Chitra; Gunadi, Julia Windi; Adhika, Oeij Anindita; Ishak, Lani; Jasaputra, Diana Krisanti; Rosali, Alexandrina Everdine; Sanjaya, Ardo
Universa Medicina Vol. 43 No. 3 (2024)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2024.v43.329-339

Abstract

BackgroundSkin aging is a complex biological phenomenon influenced by intrinsic and extrinsic factors. Photoaging can be prevented by applying phytochemicals that have sun-protective properties. This study aimed to evaluate the effect of saffron serum to restore collagen density and autophagy processes and reduce inflammatory gene expression in UVB-exposed Wistar rats. MethodsAn experimental laboratory study was conducted involving 20 male Wistar rats that were divided into 4 groups: control, UVB, UVB + base serum, UVB + saffron serum exposed to UVB radiation for 5 weeks with a total dose of 3100 mJ/cm2. The skin was extracted then underwent Masson Trichrome staining and real-time PCR to obtain collagen density and gene expression. ResultsThe gene expression of MMP1, IL6, TNFá, LC3, and p62 was significantly increased in the UVB group compared to the control group. Topical administration of saffron serum significantly increased collagen density (p=0.001). Induction by UVB significantly increased LC3 (p=0.020) and p62 (p=0.030) gene expression, indicating an inhibition of autophagy. The saffron serum might modulate autophagy by increasing LC3, but not significant (p=0.495) and significantly decreasing p62 gene expression (p=0.001). As for MMP1, IL6, and TNFá, no significant decrease in gene expression was found in the UVB + saffron serum group compared to the UVB group. ConclusionSaffron serum increases collagen density and modulates autophagy in the skin of UVB-exposed Wistar rats. Inflammatory markers were increased after UVB induction, but no differences were found after saffron serum topical administration.
Effects of dietary protein combined with high-intensity exercise in restoring skin health in male rats Gunadi, Julia Windi; Lesmana, Ronny; Kastella, Faysal; Tarawan, Vita Murniati; Goenawan, Hanna; Gunawan, Decky; Jasaputra, Diana Krisanti
Universa Medicina Vol. 44 No. 2 (2025)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2025.v44.152-161

Abstract

Background Protein is essential for skin integrity, while exercise modulates cellular and molecular processes that regulate autophagy, mitochondrial biogenesis, and collagen synthesis. This study evaluates the combined effects of dietary protein restriction and varying exercise intensities on epidermal thickness, autophagy markers (LC3, p62), mitochondrial biogenesis (PGC1α), and collagen synthesis (Col1a1, Col3a1) in male Wistar rats.    Methods An experimental laboratory study was conducted involving 32 male Wistar rats. They were randomized into 8 groups: control, low protein, low intensity, group IV, moderate intensity, moderate intensity low protein, high intensity, and high intensity low protein. Low protein diet (5%) compared to the control (24%) was given for 60 days, while the exercise regimen was eight weeks of treadmill exercise (low/10 m per minute, moderate/20 m per minute, and high intensity/30 m per minute) for 30 minutes a day, five days a week. Epidermal thickness, LC3, p62, PGC1α, Col1a1, and Col3a1 mRNA expression were measured at the end of the study. One-way ANOVA/Kruskal-Wallis followed by Tukey HSD/Mann–Whitney test was used to analyze the data.   Results A low-protein diet significantly reduced epidermal thickness (p=0.048), increased LC3 (p=0.043) and p62 (p=0.011), indicating impaired skin regeneration and autophagy. However, exercise, especially at high intensities with low protein, mitigated this effect by increasing both LC3 (p=0.011) and PGC1α (p=0.011).   Conclusions These findings highlight the compensatory role of exercise in maintaining tissue integrity under protein-deprived conditions in male rats. High-intensity exercise potentially enhances autophagy and mitochondrial biogenesis.