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Isolasi Dan Karakterisasi Bromelain Bonggol Nanas Dari Limbah Industri (Ananas comosus L. Merr.) Mulyani, Laida Neti; Larasti, Veny; Handayani, Dwi; Herlina, Herlina
JURNAL FARMASI GALENIKA Vol 11 No 1 (2024): Jurnal Farmasi Galenika Vol 11 No 1
Publisher : Universitas Bhakti Kencana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70410/jfg.v11i1.328

Waste of pineapple stem (Ananas comusus L. Merr.) has not been optimally utilized, although it is known that pineapple contain bromelain enzym. This research aimed to isolation and characterization bromelain from pineapple stem. Enzim was extracted from pineapple stem to produce crude enzim of bromelain. Isolation bromelain was done by amonium sulphate precepititation and continued by dialysis. Characterization to determined molecular weight, protein content and protease activity. The result of fractionation by amonium precipitation showed the highest specific activity on amonium sulphate 40-60% fraction 1011,98 U/mg. Caharacterization of purified bromelain showed that molecular weight of bromelain is 23,69 dan 24,72 kD with proteint content 2,78 mg/mL and protease activity is 2833,33 U/mL. This study concluded that the pineapple stem has bromelain enzym with the protease activity.

TINJAUAN SISTEMATIS HISPATOLOGI GOUT ARTRITIS: PERAN SEL IMUN DALAM PROSES INFLAMASI DAN KERUSAKAN JARINGAN Larasati, Veny; Parisa, Nita; Valentino, Albert Amadeus; Diba, Msy. Farah
Media Penelitian dan Pengembangan Kesehatan Vol. 34 No. 4 (2024): MEDIA PENELITIAN DAN PENGEMBANGAN KESEHATAN
Publisher : Poltekkes Kemenkes Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34011/jmp2k.v34i4.2210

Gout arthritis is a joint inflammation caused by increased uric acid levels, leading to the formation of monosodium urate (MSU) crystals. The study aimed to deepen the understanding of the role of MSU crystals in triggering both acute and chronic inflammatory responses, as well as the formation of tophi, which damage joint and bone tissues. The method used is the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The reviewed articles were obtained from the Science Direct, Semantic Scholar, and PubMed databases using the keywords “Gout Arthritis,” “Histopathology,” “Inflammation,” and “Tophus.” The publication period was limited to 2019-2024. Out of 745 articles found, 12 were selected based on inclusion criteria, which included experimental, observational, and case study reports. The results show that MSU crystals induce inflammation through the infiltration of inflammatory cells such as neutrophils and macrophages. In chronic Gout, the formation of tophi, granulomatous lesions with a crystalline core, leads to bone and joint destruction. Understanding the histopathological aspects is crucial for more accurate diagnosis and more effective management of Gout arthritis. The progression of the disease is related to acute and chronic inflammation, as well as the destructive effects of tophi on joints and bones. In conclusion, MSU crystals play a significant role in triggering inflammation and tissue damage in Gout arthritis, and understanding histopathology can improve diagnostic accuracy and therapeutic efficacy.

The Effects of Intermittent Fasting on the Size and Number of Subcutaneus Adipocytes in Obese Mouse Models Larasati, Veny; Rasyid, Riana Sari Puspita; Fertilita, Soilia; Suciati, Tri; Farhan, Muhammad
Folia Medica Indonesiana Vol. 60, No. 2
Publisher : Folia Medica Indonesiana

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

Highlights: 1. This study helps bridge the gap between systemic effects and tissue-level changes, providing a deeper understanding of how histological analysis can be used to explore the effects of intermittent fasting on adipocytes and body weight regulation. 2. This study contributes to obesity management through lifestyle modification, specifically intermittent fasting, by focusing on histological changes in adipose tissue. Abstract The accumulation of adipose tissue can have deleterious effects and lead to obesity. Intermittent fasting (IF), an approach that involves time-restricted eating, has gained popularity as an obesity treatment option because it enhances insulin sensitivity and promotes beneficial changes in glucose metabolism. This study used a time-restricted meal intake (TRM) approach to assess the effects of IF on the histological features of obese mouse models' subcutaneous inguinal adipose tissue. The investigation employed an in vivo experimental posttest-only control group design. Twenty male mice were divided into four groups: a normal control group, an obese control group, a TRM group with a high-fat diet (TRM-HF), and a TRM group with a standard diet (TRM-S). The TRM treatment was administered for fourteen days, with a fasting window from 4 p.m. to 8 a.m. The pre- and post-treatment weight analyses were conducted using the paired t-test for normally distributed data and the Wilcoxon test for non-normally distributed data (p<0.05). One-way analysis of variance (ANOVA) was employed for unpaired data on the post-treatment weight. Per field of view, there were an average of 120,500 cells (49,700–136,200) in the normal control group, 68,380±9,194 cells in the obese control group, 70,860±11,029 cells in the TRM-HF group, and 79,360±5,112 cells in the TRM-S group. The average cell sizes (Î¼m3) were 56,730.142±19,273.257 in the normal control group, 138,934.331±27,670.558 in the obese control group, 106,827.767±20,580.501 in the TRM-HF group, and 68,689.114±8,219.727 in the TRM-S group. The number of cells in each group did not differ significantly, but there were significant variations in cell size. The mice receiving TRM treatment did not exhibit substantial body weight changes, whereas the obese control group showed a significant body weight increase. In conclusion, TRM has an effect on cell size but does not affect the quantity of adipocytes in subcutaneous inguinal fat tissue.

Exploring The Potential of Gonggong Sea Snails (Laevistrombus Sp.) in Biotechnology as a Source of Natural Compounds for Wound Healing Fadilah, Rizka; Hafy, Zen; Larasati, Veny
Eduvest - Journal of Universal Studies Vol. 5 No. 11 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i11.52441

The gonggongsea snail(Laevistrombussp.) is a typical marine life of the Riau Islands that contains various bioactive compounds with potential as wound healing agents based on natural ingredients. This study aims to evaluate the potential of gonggong seasnailextract through a literature review of articles obtained from PubMed, ScienceDirect, Google Scholar, and Scopus. Analysis of 18 articles showed that gonggongsea snailscontain histone protein H2A, antimicrobial peptides, flavonoids, alkaloids, saponins, as well as essential amino acids such as arginine, proline, and glycine that work synergistically throughout the wound healing phase. The compound plays a role in suppressing inflammation through inhibition of the NF-κB pathway and increasing IL-10, supporting the proliferation phase by stimulating angiogenesis and collagen synthesis, and improving the remodeling phase through improved tissue quality and antioxidant activity. Histological assessment can use the SPOT score system to show relevant parameters to evaluate the effectiveness of natural ingredients in wound healing. The results of this study confirm that gonggongsea snailextract has great potential to be developed as an effective, safe, and sustainable wound therapy candidate, so experimental research is needed to validate molecular mechanisms and standardize formulations.

Rhodomyrtus tomentosa Leaf Extract Cream Suppresses MMP-1 Expression and Epidermal Thickening in UVB-Irradiated Swiss Webster Mice Defa Agripratama Ali; Zen Hafy; Veny Larasati; Nora Ramkita
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 6 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i6.1609

Background: Ultraviolet B (UVB) radiation induces matrix metalloproteinase-1 (MMP-1) expression and epidermal hyperplasia, contributing to photoaging. Rhodomyrtus tomentosa (karamunting) is rich in polyphenolic compounds with documented antioxidant properties, but its in vivo photoprotective effects remain unexplored. Methods: We investigated the effects of R. tomentosa leaf extract cream at varying concentrations (0%, 12.5%, 25%, 50%) on UVB-irradiated Swiss Webster mice (n=4 per group). UVB exposure was standardized at approximately 150 mJ/cm² per session over seven consecutive days. Vitamin E cream served as a positive control. Immunohistochemical staining quantified MMP-1 expression as a percentage of positive cells, while hematoxylin-eosin histology measured epidermal thickness. Results: Kruskal-Wallis testing revealed significant differences in both MMP-1 expression (H=10.43, p=0.015) and epidermal thickness (H=10.88, p=0.012). The 25% extract concentration optimally suppressed MMP-1 expression (mean 45.94% of positive cells) compared to the untreated UVB control (89.53%). A biphasic dose-response pattern emerged, with hormetic effects observed at 50% concentration (76.45%), suggesting polyphenol pro-oxidant activity at excessive concentrations. Epidermal thickness normalized with 25% treatment (71.8 μm) versus UVB control (93.4 μm). Immunohistochemical intensity decreased progressively with treatment intensification through 25%, supporting suppression of MMP-1-mediated collagen degradation. Conclusion: R. tomentosa leaf extract cream at 25% concentration effectively suppresses MMP-1 expression and normalizes UVB-induced epidermal thickening in mice. The hormetic response at higher concentrations highlights the importance of dose optimization in phytotherapeutic development. This work establishes the first in vivo evidence for karamunting leaf extract as a photoprotective agent and supports further clinical translation.

Rhodomyrtus tomentosa Leaf Extract Cream Suppresses MMP-1 Expression and Epidermal Thickening in UVB-Irradiated Swiss Webster Mice Defa Agripratama Ali; Zen Hafy; Veny Larasati; Nora Ramkita
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 6 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i6.1609

Background: Ultraviolet B (UVB) radiation induces matrix metalloproteinase-1 (MMP-1) expression and epidermal hyperplasia, contributing to photoaging. Rhodomyrtus tomentosa (karamunting) is rich in polyphenolic compounds with documented antioxidant properties, but its in vivo photoprotective effects remain unexplored. Methods: We investigated the effects of R. tomentosa leaf extract cream at varying concentrations (0%, 12.5%, 25%, 50%) on UVB-irradiated Swiss Webster mice (n=4 per group). UVB exposure was standardized at approximately 150 mJ/cm² per session over seven consecutive days. Vitamin E cream served as a positive control. Immunohistochemical staining quantified MMP-1 expression as a percentage of positive cells, while hematoxylin-eosin histology measured epidermal thickness. Results: Kruskal-Wallis testing revealed significant differences in both MMP-1 expression (H=10.43, p=0.015) and epidermal thickness (H=10.88, p=0.012). The 25% extract concentration optimally suppressed MMP-1 expression (mean 45.94% of positive cells) compared to the untreated UVB control (89.53%). A biphasic dose-response pattern emerged, with hormetic effects observed at 50% concentration (76.45%), suggesting polyphenol pro-oxidant activity at excessive concentrations. Epidermal thickness normalized with 25% treatment (71.8 μm) versus UVB control (93.4 μm). Immunohistochemical intensity decreased progressively with treatment intensification through 25%, supporting suppression of MMP-1-mediated collagen degradation. Conclusion: R. tomentosa leaf extract cream at 25% concentration effectively suppresses MMP-1 expression and normalizes UVB-induced epidermal thickening in mice. The hormetic response at higher concentrations highlights the importance of dose optimization in phytotherapeutic development. This work establishes the first in vivo evidence for karamunting leaf extract as a photoprotective agent and supports further clinical translation.

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