TMEPAIによるWntシグナル抑制機構の解明

筑波大学 (University of Tsukuba)201

Article review: Brazilin as potential anticancer agent

Brazilin is the main compound in Caesalpinia sappan and Haematoxylum braziletto, which is identified as a homoisoflavonoid based on its molecular structure. These plants are traditionally used as an anti-inflammatory to treat fever, hemorrhage, rheumatism, skin problems, diabetes, and cardiovascular diseases. Recently, brazilin has increased its interest in cancer studies. Several findings have shown that brazilin has cytotoxic effects on colorectal cancer, breast cancer, lung cancer, multiple myeloma, osteosarcoma, cervical cancer, bladder carcinoma, also other cancers, along with numerous facts about its possible mechanisms that will be discussed. Besides its flavonoid content, brazilin is able to chelate metal ions. A study has proved that brazilin could be used as an antituberculosis agent based on its ability to chelate iron. This possible iron-chelating of brazilin and all the studies discussed in this review will lead us to the statement that, in the future, brazilin has the potency to be a chemo-preventive and anticancer agent. The article review aimed to determine the brazilin mechanism and pathogenesis of cancer

Review: Hepatoprotector Compounds in Plant Extracts

Many plants have been reported to possess hepatoprotective activity. The mechanism has not yet been revealed, but it was predicted due to the antioxidants that could prevent the formation of free radicals produced by hepatotoxins. Of the 30 plants studied, Crocus sativus gave the largest hepatoprotector activity at a dose of 20 mg / kg, followed by Uncaria gambier Roxb. with a dose of 30 mg / kg and Melastoma malabathricum Leaf at a dose of 50 mg / kg. Keywords: Liver, CYP450, antioxidant, free radical

Public knowledge, attitudes, and practices during the first wave of COVID-19 in Indonesia

Background: The COVID-19 pandemic became a global emergency, and it is vital to understand the knowledge, attitudes, and practices of populations regarding this disease to prevent its spread.Objective: The study aimed to investigate the knowledge, attitudes, and practices of the Indonesian public toward COVID-19.Methods: An observational study was conducted in Indonesia between November 2020 and January 2021. The study employed a validated questionnaire with 391 respondents to the survey. A comparative analysis was performed to assess the mean differences in respondents’ characteristics in terms of their knowledge, attitude, and practice scores. Furthermore, regression analysis was used to investigate those factors associated with the good practice of health protocols during the COVID-19 pandemic.Results: The findings showed significant differences in the average knowledge scores across gender, geographical location, and educational attainment. Furthermore, significant differences in practices were identified in terms of gender and educational attainment. The findings of the study indicate that the participants demonstrated a significant awareness of COVID-19, as evidenced by their high mean knowledge score of 17.83 ± 1.74 out of a possible total score of 22 points. The results indicate that the respondents exhibited a positive attitude toward COVID-19 prevention measures, as evidenced by an attitude score of 26.95 ± 3.14 out of a possible total score of 30 points. Additionally, the mean score for good practice in health protocols aimed at reducing COVID-19 infection was found to be high (4.23 ± 0.96) at 5 points. This suggests that the study participants had already adopted effective measures to comply with the recommended health guidelines. The results of the regression analysis indicated that gender, level of education, and knowledge were statistically significant predictors for adherence to health protocols during the COVID-19 pandemic (p &lt; 0.05).Conclusion: The aforementioned results offer significant perspectives into the populace’s comprehension, disposition, and conduct regarding COVID-19 in Indonesia. These insights could potentially contribute to the formulation of efficacious measures aimed at curtailing transmission of the virus.</p

Peran dan Metode Pengukuran Protein Kidney Injury Molecule-1 (Kim-1) sebagai Biomarker pada Cedera Ginjal Akut

Cedera ginjal akut atau Acute Kidney Injury (AKI) adalah salah satu sindrom klinis yang menyebabkan risiko mortalitas dan morbiditas yang tinggi. Deteksi dini AKI sangat diperlukan untuk mencegah kerusakan ginjal permanen dan memperlambat perkembangan AKI. Kidney Injury Molecule-1 (KIM-1) adalah biomarker yang sensitif, spesifik dan cepat dalam deteksi dini AKI. KIM-1 akan diekspresikan berlebih pada sel epitel tubulus proksimal setelah adanya cedera pada ginjal. KIM-1 dapat menggambarkan disfungsi ginjal melalui cairan tubuh, seperti plasma dan urin. Kajian pustaka ini membahas karakteristik, peran dan metode pengukuran KIM-1 sebagai biomarker untuk deteksi dini AKI. Kajian dilakukan terhadap 51 artikel yang didapat dari basis data PubMed dengan kata kunci “Kidney Injury Molecule-1”, “KIM-1 Biomarker”, “KIM-1 assay”, “Acute Kidney Injury” dan “KIM-1 kidney injury biomarker”. KIM-1 adalah glikoprotein transmembran tipe I dengan berat molekul ~104 kDa yang mengalami peningkatan konsentrasi di membran apikal sel epitel tubulus proksimal dan berperan dalam patogenesis cedera sel tubulus ginjal. KIM-1 memiliki sensitivitas dan spesifisitas yang baik dengan nilai AUC-ROC >0,5. Metode pengukuran yang paling banyak digunakan adalah ELISA dan sampel yang paling banyak digunakan adalah urin karena peningkatannya lebih jelas dibanding dengan plasma. KIM-1 urin yang diukur menggunakan metode ELISA memiliki potensi untuk dikembangkan dan digunakan sebagai parameter diagnosis dini AKI di masa mendatan