Curcumin nanocapsules effect in apoptotic processes, gene expression, and cell cycle on Hep-G2 cell lines.

OBJECTIVES: Curcumin has antioxidant and antiproliferative properties, and its therapeutic effect must be considered. Nanocurcumin capsules showed a potential increase against in vitro biological cancer. This study sought to determine how curcumin nanoparticles and nanocapsules affected the expression of p53, Bcl-2, Bax, and Bax in a liver cancer cell line (Hep-G2). Mechanisms of apoptosis were also examined in this cell line. METHODS: This study used quantitative real-time polymerase chain reaction (qRT-PCR) to analyze the p53, Bcl-2, Bax, and Caspase-3 gene pathways and to evaluate the molecular mechanisms responsible for the efficacy of curcumin nanoparticles (CNPs) and curcumin nanocapsules (CNCs) against liver cell lines. Flow cytometry was used to check for signs of apoptosis and the cell cycle. RESULTS: Curcumin nanocapsules produced by the ball milling process at 90 min significantly boosted the populations of apoptotic cells in a dose- and time-dependent manner. The mRNA expression analysis revealed that the proapoptotic Bax, Caspase-3, and the tumor suppressor gene p53 were upregulated throughout the process started by curcumin nanocapsules and decreased in the Bcl-2/Bax ratio. CONCLUSION: This research provides a fresh understanding of the molecular mechanisms behind the liver cancer-fighting abilities of curcumin nanoparticles. Curcumin nanocapsules produced through a unique mechanical technique can be used as an anticancer agent.

Efficacy of Dietary Supplementation with Capsicum Annum L on Performance, Hematology, Blood Biochemistry and Hepatic Antioxidant Status of Growing Rabbits.

Animals fed with a high amount of a wide range of antioxidants in their diet are significantly protected against oxidative stress. Powerful antioxidant substances such as vitamin E, vitamin C, and carotenoids are present naturally in red-hot pepper (RHP). This study hypothesized that using RHP may provide protection against oxidative stress and enhance animal physiological responses. Thus, this study aimed to investigate the effect of feeding New Zealand white rabbits with RHP-supplemented diets on their physiological and biochemical responses. New Zealand White rabbits (age = 6 weeks, n = 48) were split equally into three groups (n = 16 in each group). One group was fed a basal diet only (control group), with the other two groups fed a basal diet along with 1 and 2% RHP. Mass spectrometric analysis for the RHP methanolic extract showed some phenolic compounds, such as p-coumaric, sinapinic acids, vanillic, and luteolin, as well as catechin and its isomers. Hepatic antioxidant enzymes (SOD, GSH, GSH-Px, and CAT) were significantly elevated (p < 0.05) by feeding rabbits diets supplemented with 1 or 2% RHP. The addition of RHP significantly enhanced immune-responses; phagocytic activity, chemotaxis, TIg, IgG, IgM, and IgA increased when growing rabbits were fed RHP compared with the control group. In conclusion, dietary supplementation of 1 or 2% RHP may play a role as an enhancer of growth and immune response in growing rabbits.

INHIBITORY ACTIVITY OF PROTECTED EDIBLE PLANTS ON OXIDATIVE STRESS INDUCED BY ORAL 1,4-DIOXANE.

1,4-Dioxane (DX) with two oxygen atoms make it hydrophilic and infinitely soluble in water. As a synthetic organic compound, it used widely throughout industry as a solvent. Dioxane causes numerous human ailments such as liver damage and kidney failure. It has been shown in research to be carcinogenic to animals, and is a potential carcinogen to humans. Daily administration for 1,4-dioxane (100 mg/kg body weight) in drinking water for rats weighing 120 g, except for normal control group. Experimental animal for 42 days was followed through body weight, serum alkaline phosphatase, serum creatinine, malondialdehyde, and catalase enzyme activity; beside histological patterns for liver, kidney, brain and ovary sections. Protection treatment has been offered using oral injection N-acetyl cysteine (100 mg/kg b.wt.), and fresh 200 mg/kg b.wt. in diet meal for each of nabk, husk, and sycamore in separated groups. Body weight and CAT activity have decreased by 25.8, and 68.7%, respectively. While increase has found in MDA, ALP and creatinine values by 76, 48.9, and 67.3%, respectively. NAC showed improvement especially for MDA peroxidation marker and creatinine for kidney disorder. On the other hand, nabk improved CAT activity and husk for ALP liver mutagenicity marker. Intoxicated DX showed edema, kupffer cell activation, atrophy of glomerular tuft, and necrosis of neurons in liver, kidney and brain sections. Obviously nabk showed highly improvement in liver toxicity which is the most sensitive organ to DX as found in research.