جستجوی مقالات مرتبط با کلیدواژه "ترانس چالکون" در نشریات گروه "زیست شناسی"

Amyloid fibrils are string-like aggregates that form due to the disruption of natural structure and misfolding of various types of peptides and proteins. These amyloid aggregates are associated with some neurodegenerative and systemic diseases such as Alzheimer's, Parkinson's, and type 2 diabetes. The aim of this study was to investigate the inhibitory effects of Trans-chalcone on insulin fibrillation (as a model protein). In this study, insulin was incubated for 24 hours in the presence and absence of Trans-chalcone under amyloid formation conditions. The formed fibrils were analyzed using various techniques including Congo red absorption spectral changes by spectroscopy, electron microscopy images by TEM, and fluorescent staining of amyloid aggregates by fluorescent microscopy. Then, possible interactions between Trans-chalcone and insulin were analyzed using molecular docking method by AutoDock software. The results showed a significant reduction in amyloid fibril formation in the additive-containing sample compared to the control sample. This study provides evidence that Trans-chalcone has an inhibitory effect on insulin fibrillation and could be a potential therapeutic agent for amyloid-related diseases.

Cancer is an uncontrollable cells growth and breast cancer is a type of it. Its main treatment is chemotherapy with the risk of side effects. Today, the use of natural ingredients, such as chalcones, has been used to treat cancer. The aim of this study was to induce apoptosis with trans-chalcone drugs in breast cancer cells 4T1 and on BALB/c mice. Drug toxicity was measured by MTT assay at 24, 48 h, and at concentrations of 20, 30, 40 and 50 μM (uM). Hematoxylin-azine was evaluated after treatment of tumor mice. Then, significant results were analyzed by SPSS and ANOVA with significance level of P.