ABSTRACT
Hyperglycaemia is one condition related to inflammation leading to insulin signalling impairment. This study was conducted to investigate the insulin sensitivity improvement of Sambiloto (Andrographis paniculata (Burm. f.)) Nees extract in insulin resistance-induced HepG2 (IR-HepG2) cells by stimulating insulin sensitivities and inhibiting inflammatory response. Sambiloto extract at 2 µg/mL revealed glucose uptake stimulation and up-regulating GLUT-2 and IRS-1 gene expression, and inhibited pro-inflammatory cytokine IL-6 gene expression in IR-HepG2 cells. Phytochemical analysis showed that the total phenolic level and andrografolide content of Sambiloto extract were 2.91 ± 0.04% and 1.95%, respectively. This result indicated that Sambiloto extract ameliorated insulin resistance in high glucose-induced IR-HepG2 cells via modulating the IRS-1/GLUT-2 pathway due to IL-6 inhibition. These findings suggested that Sambiloto extract had potency as an anti-inflammatory and insulin-resistance improvement in IR-HepG2 cells.
ABSTRACT
Objective: Indonesia is an archipelagic country with a mega biodiversity, among others, in the marine area. Seahorses (Hippocampus spp.) are a marine fish known to have biocompounds used in traditional medicine "Jamu," such as Hippocampus comes L. (HCL). The present study aims to analyze and compare the chemical contents of cultured seahorse (CS) and natural seahorse (NS) extracts. Materials and Methods: The CS and NS were identified morphometrically. After freeze-drying, the seahorses were ground into powder with a grinder. The seahorse powder was extracted with ethanol and a water solvent. The extract contained biocompounds, proximate, amino acids, and steroids with high-performance liquid chromatography. Results: The study found unique characteristics of HCL. The highest yield was obtained in NS using a water solvent (18.6%). The biocompounds in seahorses consist of alkaloids and triterpenoids. The highest proximate of water content (11.03%) and ash content (42.50%) was found in NS. In addition, other compounds were also detected in CS, such as fat (7.48%) and protein (47.67%). Both of HCL's different sources had all essential and nonessential amino acids in which the highest concentration were in NS, i.e., L-arginine (56,537.22 mg/kg), L-lysine (17,794.17), glycine (113,649.80 mg/kg), L-proline (47,056.15), and L-alanine (43,451.81). The analysis of the steroid compound of the extract suggested the presence of steroid glycosides. Conclusion: The highest yield of the seahorse extract with a water solvent is about 18.6% and protein content of 47.67% in CS. The crude extract has alkaloids, triterpenoids, and glycine (113,649.80 mg/kg) in NS with water, suggesting the presence of steroid glycosides.
ABSTRACT
Analysis of the Papua New Guinean sponge Theonella swinhoei afforded a new calyculinamide-related congener for which we propose the name swinhoeiamide A (1). The structure of the new compound was unambiguously established on the basis of NMR spectroscopic ((1)H, (13)C, COSY, HMBC) and mass spectrometric (FABMS) data. Swinhoeiamide A exhibited insecticidal activity toward neonate larvae of the polyphagous pest insect Spodoptera littoralis when incorporated in an artificial diet offered to the larvae in a chronic feeding bioassay (ED(50) 2.11 ppm, LD(50) 2.98 ppm). Furthermore, it was found to be fungicidal against Candida albicans and Aspergillus fumigatus (MIC 1.2 and 1.0 microg/mL, respectively).
