Mcdowellmalling2192

Epigallocatechin gallate (EGCG), major constituent of green tea, possesses antioxidant, antiviral, and anticancer activities. Gold nanoparticles (AuNPs) play an important role in drug delivery due to their stability, ease of surface functionalization, and unique optical properties. This study aimed to investigate the influence of EGCG-capped AuNPs on tumor suppressor miRNAs (miR-34a and let-7a) and their targeted cell death mediators in HepG2 cells, compared with celastrol. EGCG-AuNPs were prepared and characterized. antioxidant activity was estimated by DPPH scavenging assay; cytotoxicity was assessed by MTT assay; let-7a and miR-34a expression was analyzed by qPCR; and miRNAs targets (c-Myc and caspase-3) were assessed by ELISA and immunocytofluorescence, respectively. The average size of EGCG-AuNPs was 35 nm, with a λmax of ~535 nm. EGCG-AuNPs exerted cytotoxicity on HepG2 cells stronger than that of EGCG alone. EGCG-AuNPs and EGCG presented half-maximal radical scavenging concentrations (SC50) of 539 µg/ml and 45 µg/ml, respectively. The expression levels of let-7a and miR-34a were significantly elevated in HepG2 cells after EGCG-AuNP treatment for 72 h. c-Myc protein expression was reduced, whereas caspase-3 expression was increased following treatment with EGCG-AuNPs. In conclusion, Au-NPs are effective carrier for EGCG, and EGCG-AuNPs are promising anti-cancer agent.Urolithiasis is a disorder of kidneys in which stones formation occur due to the excessive deposition of minerals in the urinary tract. It affects 12% of the population worldwide. Salvia hispanica seeds are rich source of quercetin which has preventive role in renal stone formation. The study objective was to explore scientifically the anti-urolithiatic effect of Salvia hispanica seed's methanol extract using in vitro and in vivo urolithiasis models. For in-vitro study nucleation, growth and aggregation assays were performed. see more In vivo study was performed on rats and they were divided into six groups (n=6). Group-I was given vehicle only. Group-II was disease control, treated with 0.75% EG in drinking water which triggered urolithiasis. Groups-III received cystone (750 mg/kg, orally). Groups IV-VI were treated with extract at 100, 300 and 700 mg/kg doses orally once daily. Groups III-VI additionally received 0.75% EG in drinking water. In vitro study revealed concentration dependent increase in percentage inhibition of crystal's nucleation, growth and aggregation. In vivo study revealed anti-urolithiatic activity by lowering oxalate, calcium, phosphate, sodium and potassium levels in the urine and the serum uric acid, blood urea nitrogen, total proteins and total albumin. Salvia hispanica seeds are good alterative of allopathic anti-urolithiatic drugs to treat urolithiasis.Professional athletes conduct high-intensitive hypoxic training often accompanied by the increase of many inflammatory-related cytokines and immunosuppression. Cucurbitacin E (CucE), as a triterpenoid isolated from Cucurbitaceae plants, exert potential anti-cancer and anti-inflammatory. However, it is unknown whether that the CucE could be used as dietary supplement for athletes to improve inflammatory response and immunosuppression. In this study, we established the simulative hypoxic training rat and monkey models and evaluated the effects of CucE on immune- and inflammation-related factors. Obvious improvement on pro-inflammatory factors and pro-lymphocyte proliferation activities were showed in CucE treated rats compared with the control. Further supplement of CucE in professional meals for cynomolgus monkeys with 4-weeks high-intensitive hypoxic training also exert effects on altitude-induced oxidative stress, inflammation and immunologic function. Furtherly, we explored the underlying mechanism of CucE in human Jurkat T cells and results showed that CucE may exhibit immunosuppressive effect by attenuating critical cytokine expression through down-regulating the NF-κB signaling pathway. In conclusion, CucE is expected to be a potential dietary supplement for athletes to ameliorate the inflammation and immunosuppression caused by high-intensitive exercise.In this work, the natural latex extracted from Harconia speciosa was incorporated with silver nanoparticles (AgNP) to compose a functional biomaterial associating the intrinsic angiogenic activity of the latex and the antimicrobial activity of AgNP. Tissue reaction after subcutaneous implantation in dorsum of rats of membranes without AgNP and with 0.05%, 0.4% AgNP was compared at 3, 7 and 25 days. No statistically significant difference in the tissue response of the different biomaterials was observed, indicating that AgNP did not interfere with the inflammatory reaction (p > 0.05) or with the angiogenic activity of latex. Biomembranes were also tested against bacterial biofilm formation by Staphylococcus aureus and the antimicrobial activity of the new biomaterial can be found with bacteria crenation (0.05% AgNP) and no biofilm deposition (0.4% AgNP). Therefore, this biomaterial has interesting properties for the tissue repair process and may be feasible for future applications as dressing.Epicardial fat thickness (EFT) is associated with aortic stiffness in diabetic patients. In this study, we aimed to determine if there is an association among the parameters of EFT, aortic velocity propagation (AVP), and carotid intima-media thickness (CIMT) in patients with non-insulin dependent diabetes mellitus. This study included 55 non-insulin dependent diabetes mellitus patients and 40 non-diabetic control patients. For all participants, EFT and AVP were determined by echocardiographic method and CIMT was calculated using an ultrasonographic exam. The EFT and CIMT values were found to be significantly increased in the non-insulin dependent diabetes mellitus group. On the other hand, aortic velocity propagation was decreased in the non-insulin dependent diabetes mellitus group compared to non-diabetic patients (EFT; 8.43 ± 1.68 versus 6.36 ± 2.21 mm, p less then 0.001; CIMT; 0.92 ± 0.24 versus 0.58 ± 0.18 mm, p less then 0.001; and AVP; 28.20 ± 16.02 versus 58.10 ± 17.50, p less then 0.01, respectively).