Keladi tikus (Typhonium flagelliforme (Lodd.) Blume) is an Indonesian medicinal plant that has various pharmacological properties. Zebrafish (Danio rerio) has been proposed as a model that can bridge the gap between cell assays and rodent assays. Evaluation of the toxic effects of natural products using the Zebrafish model can be assessed starting from the blastula stage of embryonic development. This study aims to investigate the potential acute toxicity effect of keladi tikus-ethanol extract (KTEE) using zebrafish embryos. A static non-replacement regime for acute toxicity testing was used. Wild-type zebrafish embryos were exposed to various concentrations of KTEE (50, 100, 200, 400, 800, 1600 µg/mL) starting at 6 hours post-fertilization (hpf) until 96 hpf. The results showed that the survival rate of zebrafish embryos decreased as the concentration of the test extract increased. The LC50 values of KTEE were 494.553 µg/mL at 96 hpf and 555.787 µg/mL at 72 hpf. Embryotoxicity effect of KTEE includes hatching delays and decreased heartrate on zebrafish embryos, especially at high concentrations. KTEE also caused abnormalities in embryo morphology, including pericardial edema, jaw and tail deformity.
Background: Transmission of COVID-19 developed rapidly until the World Health Organization (WHO) established a pandemic status on COVID-19 since March 11, 2020. Various of government efforts in the context of prevention and treatment have been carried out including lockdowns decisision, social distancing and new normal was currently carried out. Objective: This community service activity aims as an effort to increase the knowledge and awareness of South Konawe communities to prevent and fight covid-19 by clean and healthy living behaviors. Method: The implementation of this activity using socialization and persuasive communication online methods via social media instagram and youtube and offline method performed in two categories, small-scale and large-scale at South Konawe. These community service activities are outlined in 4 main programs, GERMAS (Healthy Living Community Movement), GEMAS (Community Movement Using Masks), socialization about TOGA (Family Medicinal Plants), antiseptics and disinfectants. Results: The result of this program is increasing public knowledges about how to improve the immune system, such as consuming nutritious food, consuming herbs which can be processed into an infusion or decocta preparations as well as understand the importance of implementing about prevention of covid-19 in daily life, such wearing masks, antiseptics, and disinfectants and washing hand correctly. Conclusion: This community service activity really helped increase the knowledge and awareness of the community of South Konawe to prevent and fight the corona virus.
Diabetes Melitus (DM) adalah penyakit yang disebabkan oleh ketidakseimbangan asupan insulin sehingga menyebabkan glukosa tidak dapat diubah menjadi glikogen. Tectona grandis Linn F. atau daun jati secara empiris digunakan oleh masyarakat untuk pengobatan dan diketahui memiliki aktivitas sebagai antidiabetes. Penelitian ini bertujuan untuk mengetahui profil kada glikogen dalam hati dan otot tikus putih jantan model DM tipe II setelah pemberian fraksi n-heksan, kloroform, dan etil asetat daun jati. Penelitian dilakukan dnegan menggunakan Post Test Only with control group design dan pengujian kadar menggunakan metode spektrofotomteri. Hasil penelitian menunjukkan kadar glikogen hati hewan uji pada kelompok kontrol normal (Kn), kontrol positif (K+), kontrol negatif (K-), kelompok fraksi n-heksana (K1), fraksi kloroform (K2), dan fraksi etil asetat (K3) dengan dosis masing-masing 300 mg/kgBB berturut-turut yaitu 41,24; 46,14; 34,67; 43,00; 46,85; dan 52,70 µg/100mg sampel hati serta kadar glikogen otot masing-masing kelompok berturut-turut yaitu 24,82; 26,62; 19,51; 13,88; 15,43; dan 20,05 µg/100mg sampel otot. Berdasarkan hasil penelitian dapat disimpulkan bahwa fraksi terbaik yang dapat meningkatkan kadar glikogen hati dan otot hewan uji yaitu fraksi etil asetat dengan dosis 300 mg/kgBB.
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