Guazuma ulmifolia, or commonly known as the bastard cedar, has many pharmaceutical activities. Therefore, it is claimed as a source of various plant-based medicines. This research was purposed to identify the antioxidant activities of the ethanolic extract of G. ulmifolia (EEGU) by phytochemical screening assay, total flavonoid and total phenolic testing, and comparative analysis between the antioxidant activities of EEGU and epicatechin. The qualitative phytochemical screening assay of EEGU detected the availability of phenols, flavonoids, alkaloids, tannins, and terpenoids, but not saponins and triterpenoids. Meanwhile, the total phenolic content was 32.24 µg GAE/mg extract, and the total flavonoid content was 6.48 µg QE/mg extract. The role of antioxidants examined by FRAP, DPPH, H 2 O 2 , and ABTS assays. These assays are proved that the IC 50 values of EEGU are higher than epicatechin. For DPPH scavenging, H 2 O 2 scavenging, and ABTS reduction activities, EEGU resulted IC 50 45.70 μg/mL, 162.93 μg/mL, and 35.96 μg/mL, while epicatechin only yielded IC 50 0.56 μg/mL, 57.91 μg/mL, and 16.74 μg/mL respectively. Otherwise, the highest reduction in FRAP activities were shown at 50 μg/mL concentration of epicatechin and EEGU were 236.33 and 202.71 µM Fe (II)/µg respectively. Based on these results, EEGU is concluded as an active natural product because it exhibited antioxidant activities.

Inflammation response is related with various diseases. One of the useful therapeutic method to suppress inflammatory mediator synthesis is by application of compounds isolated from herbal medicine as treatment for inflammatory diseases. The aim of this study was to analyse the anti-inflammatory activity of black soybean extract (BSE), daidzein, and genistein trough in vitro analysis of inflammatory mediators such as prostaglandin 2 (PGE2) and cytokines interleukin 1β (IL-1β), and tumor necrosis factor α (TNF-α). Safety of samples was determined by viability test using MTS (3-(4,5-dimethylthiazol-2yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium). Concentration tested for viability assay were 40, 200, 1000 μg/mL for BSE, daidzein, and genistein. Anti-inflammation activity of samples was determined by ELISA quantification of PGE-2, TNF-α, and IL-1β in conditioned medium (CM) of supplemented pro-inflammatory activated RAW 264.7 cell. Inflammation on cells were induced by Lipopolysaccharide (LPS). BSE 1000 ug/ml, daidzein 1000 ug/ml, and genistein 1000 ug/ml treatments shows <80% cell viability average compared to control cell, indicating the treatments have cytotoxicity effect on RAW 264.7 cells. Hence, concentration used for treatments are 40 and 200 μg/mL for each sample. Genistein with concentration of 40 μg/ml treatment result shows highest anti-inflammatory activity which indicated from PGE-2, TNF-α, and IL-1β concentration. This study suggests that BSE, daidzein, and genistein with concentration of 40 and 200 μg/ml were safe to use for RAW 264.7 cell and genistein with concentration of 40 μg/ml have the best anti-inflammatory activity compared to daidzein and BSE.

Background: Skin aging is a complex natural process caused by both intrinsic or genetically programmed aging and extrinsic aging caused by environmental factors, such as free radical. The use of antioxidant and anti-collagenase to prevent the aging proses has been known. Natural compounds from plants are one of the sources of antioxidant and anti-collagenase that has ability to prevent aging. Genistein and Epicatechin are the major phenolic compound found in G. max. Objectives: This research was to evaluate the antiaging potential of genistein and epicatechin through antioxidant activity assay (ABTS-reducing activity assay) and collagenase inhibitory activity assay. Methods: Antioxidant analysis of Genistein and Epicatechin was performed by 2,2'-azinobis-3-ethylbenzo-thiazoline-6-sulfonic acid (ABTS) reducing activity Assay. Antiaging assay was conducted through inhibitory of collagenase, one of important enzyme in aging process. Results: ABTS-reducing activity assay showed that both compounds had great ABTS-reducing activity in which epicatechin had better activity than genistein. Epicatechin had low value of IC 50 ABTS-reducing activity around 14.39 µg/ml better than genistein with IC 50 about 43.17 µg/ml. In terms of collagenase inhibitory activity assay, epicatechin had lower value of IC 50 (9.08+-3.46 ug/ml), better than genistein (98.74+-4.25 ug/ml). Conclusion: Epicatechin had higher antioxidant and anti-collagenase activity compared to Genistein.

Background: Mesenchymal stem cells (MSCs) are the cells which has high renewal capacity and and are capable for differentiating into some types of cells. MSCs can be obtained from several tissues including bone marrow, synovial membrane, blood, adipose tissue and periosteum. The proliferation and self-repair ability of MSCs are the advantages to use as stem cells-based therapy of various diseases. The aim of this study was to determine the differentiation, characterization and priliferation of synovial membrane-derived MSCs (SM-MSCs).Materials and Methods: The cells proliferation capacity was determined by cell counting using trypan blue, characterization of MSCs (cluster of differentiation (CD)90, CD11b, CD73, CD34, CD19, CD45, CD105 and human leukocyte antigen-DR isotype (HLA-DR)) using flow cytometry analysis, and differentiation capability into three lineage cells was determined with red alcian blue, oil red O and alizarin staining.Results: The type culture of SM-MSCs was adherent and showed positive CD44, CD105, CD73, CD90 and negative of CD19, HLA-DR, CD11b, CD45, CD34 surface marker. Based on the result, SM-MSCs P3 showed differentiation potency into adipogenic, chondrogenic, and osteogenic lineage cells. The population doubling time of SM-MSCs has increased from P3 to P8. The population doubling time of SM-MSCs P3 was 1.69 days and SM-MSCs P8 was 3.64 days.Conclusion: The results indicated that SM-MCSCs from osteoarthritis patients are able to differentiate into osteocytes, chondrocytes, adipocytes and highly express of CD105, CD73, CD90, CD44 and negative for CD34, CD45, CD14, CD19.Keywords: synovial membrane, mesenchymal stromal cells, adipocyte, chondrocyte, osteocyte

Skin aging processes are divided into chronological aging and premature aging. Premature aging is generally caused by free radicals, from both air pollution and photoaging. Natural compounds from plant extracts are among sources of antioxidants and anti-hyaluronidase which have the ability to prevent antiaging. One of the potential fruits related to antioxidant and antiaging activities is Anana scomosus. A. comosus has a number of phenolic compounds with biological activities. One of the main phenolic compounds in A. comosus is luteolin. The aim of this study was to evaluate the antioxidant and antiaging potentials of pineapple core extract (PCE). This study was conducted at the Biomolecular and Biomedicine Research Center, Aretha Medika Utama from August to November 2018. Analysis of antioxidants from PCE and luteolin was carried out using H 2 O 2 scavenging activity assay. The antiaging assay was carried out through inhibition of hyaluronidase enzyme, one of the important enzymes in the aging process. Luteolin had lower IC50 value of H 2 O 2 scavenging activity of around 24.12±3.13 μg/ ml, which was better than CPE with IC50 of 304.56±3.76μg/mL. The results of hyaluronidase inhibition activity assay showed that luteolin compound had a lower IC50 value of 67.38±3.99 μg/mL when compared to PCE with an IC50 value of 161.15±1.05 μg/mL. Hence, Luteolin has higher antioxidant and anti-hyaluronidase activities than PCE

Breast cancer is female most frequent diagnosed cancer and the leading cause of cancer death. The consumption of dietary flavonoids is reported to cause significant breast cancer risk reduction. In vitro studies often used aglycone flavonoids rather than its conjugated form that actually present in human body. Thus its mechanism against breast cancer has not been elucidated completely. The present study aimed to investigate the possible mechanism of dietary flavonoids against breast cancer by in silico study. Conjugated flavonoids were docked to ER (estrogen receptor), HER2 (human epidermal growth factor receptor 2) and EGFR (epidermal growth factor receptor) kinase domains. The molecular docking of 22 flavonoid conjugates towards EGFR and HER2 kinase domain, and ER was successfully performed. Potential binders to proteins: epicatechin conjugates to ER (−8.7 kcal/mol), isoflavone conjugates to HER2 kinase domain (−10.7 kcal/mol), and epigallocatechin and epicatechin conjugates to EGFR kinase domain (−9.2 kcal/mol), were suggested. Supported by other studies, conjugated flavonoids may exert similar inhibitory and agonistic properties to their parent flavonoids. Taken together, the present study showed possible effects of dietary flavonoids against various breast cancer subtypes.

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Wharton’s Jelly is one of the best sources for mesenchymal stem cells. Human Wharton’s Jelly Mesenchymal Stem Cells (hWJ-MSCs) have high proliferation, multi-lineage differentiation potential, and do not produce any teratogen or carcinogen. These characteristics make hWJ-MSCs become suitable for regenerative medicine. Some methods were developed to isolate hWJ-MSCs from umbilical cord, such as explant method and enzymatic method. This study aims to characterize hWJ-MSCs which are isolated by two different methods, explant attachment method and enzymatic method. hWJ-MSCs isolation was performed through explant method and enzymatic method using trypsin, hyaluronidase and collagenase type 1 with certain ratio of concentration. Isolated hWJ-MSCs was characterized using flow cytometer to detect the expression of CD44, CD90, CD105, CD73 and negative lineage. MSCs differentiation assay was performed to analyze adipogenic, chondrogenic and osteogenic cells lineage. We successfully isolated hWJ-MSCs from umbilical cord through enzymatic and explant methods. Immunophenotyping assay through flow cytometry analysis showed high purity of WJ-MSCs. The isolated hWJ-MSCs from both methods showed positive expression of CD44, CD90, CD105, and CD73. The isolated hWJ-MSCs exhibited capacity to differentiate into adipocyte, chondrocyte, and osteocyte cells. hWJ-MSCs isolated through explant and enzymatic method have high proliferation capacity and be able to differentiate into three different lineage cells. Both methods explant attachment and enzymatic methods are efficiently produced hWJ-MSCs.