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OPTIMIZATION OF INTRANASAL COVID-19 VACCINE FORMULATION WITH Lactococcus lactis pNZ HCR BACTERIA AS VECTOR IN LIQUID AEROSOL PREPARATION Yurina, Valentina
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 10 No. 1 (2023)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2023.1742

Abstract

Vaccination is an effective method to suppress COVID-19 transmission, but injection-based vaccination is less effective due to its inability to induce mucosal immunity. This study aimed to determine the effects of vaccine formulations on bacteria viability and antigen expression to find the optimal formulation. Three intranasal preparation formulations (F1, F2, and F3) were created with different ingredient compositions, along with a control. Physicochemical tests were conducted on day 0 and day 14 to assess bacterial viability, and antigen expression was evaluated using the western blot method. Formula 2, containing sodium alginate (0.615%), trehalose (4.125%), polyvinyl alcohol (0.1%), and calcium chloride (5%), exhibited the best viability test results, although no significant differences were observed among the groups. The study concluded that variations in composition concentrations could affect bacterial stability, with Formula 2 showing the best results in terms of bacteria viability and antigen expression up to 14 days after formulation.
Oral Immunization with Recombinant Lactococcus lactis and Retinoic Acid Boost Immune Response in Mice Nugroho, Inggil Cahyo; Amalia, Maulida Nisa; Juniardi, Muhamad Rizki; Marhendra, Eunike Berliana; Yanma, Nadifa Almira; Adianingsih, Oktavia Rahayu; Winarsih, Sri; Widodo, Nashi; Yurina, Valentina
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.55-64

Abstract

The COVID-19 vaccine is one of the most important approaches for preventing SARS-CoV-2 virus transmission and spread. Oral vaccines are a promising option for preventing SARS-CoV-2 infection because it can activate both the mucosal and cellular immune systems. Previous research has shown that administering oral and intranasal vaccines can induce an immune response in mice. The effectiveness of the SARS-CoV-2 oral vaccine was evaluated in this study by combining spike protein with a carrier of food-grade recombinant Lactococcus lactis bacteria and a retinoic acid adjuvant. Mice were divided into three groups: a negative control (no treatment), a positive control (L. lactis recombinant), and a third group (L. lactis recombinant plus 300 μg retinoic acid). The vaccines were given three times, with a three-week interval between each. The serum levels of IgG, IgA, and IgE were determined using the ELISA method at the end of the study. CD4 and CD8 cellswere detected using immunofluorescence. While not statistically significant, the results showed that the retinoic acid groups had the highest anti-spike antibody levels of the three groups. In comparison to the control group, CD4 and CD8 cells increased in the spleens of mice given retinoic acid. There was no difference in temperature or IgE levels between vaccinated and non-vaccinated mice, indicating that the vaccine caused no allergic reaction. This study’s findings suggest that retinoic acid adjuvant can stimulate the cellular and humoral immune system.
Anti-Photoaging Effects of Moisturizer and Serum Containing Andrographis paniculata, Syzygium aromaticum, and Pogostemon cablin: A Network Pharmacology, Molecular Docking, and in vivo Study Adianingsih, Oktavia Rahayu; Johan, Christopher Kuncoro; Widarson; Ravsanjani, Eurica Andriani Najwa; Sutiyono, Bershiella Amandari; Qurrotuain, Iffah; Yurina, Valentina; Puspita, Oktavia Eka; Widasmara, Dhelya; Saitama, Akbar; Hariyono, Didik
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.19-34

Abstract

Ultraviolet-B (UVB)-induced photoaging accelerates collagen degradation, disrupts dermal structure, and compromises epidermal integrity. Natural extracts, such as Andrographis paniculata, Syzygium aromaticum, and Pogostemon cablin demonstrated antioxidant and anti-aging properties to mitigate these damages. This study investigated the protective effects of serum and moisturizer containing A. paniculata extract, S. aromaticum oil, and P. cablin oil on UVB-induced photoaging rats, by integrating network pharmacology and in vivo experiment. Compounds and photoaging-associated targets were retrieved through online databases. Enrichment analyses were performed using Metascape. Protein-protein interaction (PPI) construction and herbs-compounds-targets-pathways disease network were performed using STRING and Cytoscape 3.10.0, respectively, followed by molecular docking. An in vivo study was conducted to evaluate epidermal thickness, collagen density, and dermo-epidermal junction (DEJ) structure. Eleven key phytoconstituents and twelve core targets were identified in anti-photoaging molecular mechanisms using network pharmacology. Molecular docking analysis revealed that 7-O-methylwogonin demonstrated favorable binding against ten photoaging-associated targets. KEGG enrichment analysis showed potential inflammation processes inhibition, including photocarcinogenesis, AGE-RAGE signaling pathway, and TNF-α expression. Furthermore, treatment with serum, moisturizer, or combination of both significantly reduced epidermal thickening and enhanced collagen density compared to the UVB-exposed only group. Although no significant difference was observed in DEJ interdigitation index across groups, treated groups exhibited a trend towards better preservation of DEJ structure relative to the UVB group. In summary, serum and moisturizer containing A. paniculata, S. aromaticum, and P. cablin extracts demonstrated potential anti-photoaging effects by reducing epidermal thickness and preserving collagen density in UVB-exposed rats. These findings support these botanical-based formulations potential as effective anti-aging skincare.
SMART BEAUTY EDUCATION: EDUKASI PEMILIHAN KOSMETIK PEMUTIH BAGI REMAJA PUTRI MELALUI BUKU CERITA INTERAKTIF Ebtavanny, Tamara Gusti; Firdaus, Favian Rafif; Yurina, Valentina; Triastuti, Efta; Pramestutie, Hananditia Rachma; Rossari, Mey Ritha Putri; Azzahra, Nabila Nashwa; Faadhillah, Mohammad Arfan Nur; Wahyudi, Rachmad Tri
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 1 (2026): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i1.36222

Abstract

Abstrak: Maraknya penggunaan krim pemutih ilegal di kalangan remaja putri menimbulkan risiko kesehatan akibat kandungan bahan berbahaya seperti merkuri dan hidrokuinon. Kegiatan pengabdian ini bertujuan meningkatkan pengetahuan dan kesadaran remaja SMA di Kota Malang mengenai kosmetik yang aman sesuai ketentuan BPOM melalui media buku cerita interaktif “Cantik dan Sehat dengan Apoteker Rexy.” Metode meliputi penyuluhan, diskusi kelompok, serta distribusi buku interaktif kepada 161 siswi dari 16 SMA/K. Evaluasi dilakukan menggunakan pre-test dan post-test dengan 20 butir pertanyaan terkait definisi, bahan aktif, keamanan, dan legalitas produk kosmetik. Hasil menunjukkan peningkatan skor pengetahuan dari 73,13 menjadi 78,17 (kenaikan 6,8%) dengan peningkatan kategori “Baik” dari 40% menjadi 55%. Uji Wilcoxon menghasilkan p=0,000 yang menunjukkan perbedaan signifikan. Program ini terbukti efektif meningkatkan literasi kosmetik remaja dan berpotensi direplikasi melalui pendekatan train-the-trainer untuk mencetak duta literasi kosmetik di sekolah.Abstract: The widespread use of illegal whitening creams among teenage girls poses serious health risks due to harmful ingredients such as mercury and hydroquinone. This community engagement aimed to improve cosmetic literacy among high school students in Malang through an interactive storybook titled “Beautiful and Healthy with Pharmacist Rexy.” The program included counseling, group discussions, and the distribution of the storybook to 161 female students from 16 schools. Evaluation was conducted using pre- and post-tests with 20 questions covering cosmetic definitions, active ingredients, safety, and legality. Results showed an increase in average knowledge scores from 73.13 to 78.17 (6.8% improvement) and a rise in the “Good” category from 40% to 55%. The Wilcoxon test revealed a statistically significant difference (p = 0.000). The intervention effectively enhanced students’ understanding of safe cosmetic use and has potential for replication using a train-the-trainer model to create cosmetic literacy ambassadors in schools.