objective: determination and comparison of the effect of infusion time on the antioxidant activity and total polyphenol contents of bagged and loosely packed black teas. materials and methods: for twenty loosely packed and eleven bagged tea samples, the antioxidant activity and total polyphenol content were analyzed using frap and folin-ciocalteau methods, respectively. the anova with tukey pos...

BACKGROUND Total hip and knee arthroplasty (THA and TKA) are accessible to patients with end-stage hip and knee arthritis in most health care systems. The availability of total ankle arthroplasty (TAA) to patients with end-stage ankle arthritis is often restricted because of prosthesis cost. Ankle fusion (AF) is often offered as the only alternative. Patients should have equal access to procedu...

BACKGROUND Total ankle arthroplasty (TAA) implantation is increasing, as the potential for pain relief and restoration of function and risks are compared with those for ankle fusion. A previous analysis with a simple decision tree suggested TAA was cost-effective compared with ankle fusion. However, reevaluation is warranted with the availability of newer, more costly implants and longer-term p...

objective: boerhaavia elegans l. (nyctaginaceae) is a medicinal plant used for the treatment of kidney disorders, urinary tract disorders and blood purification in baluch tribe. the aim of present study is to evaluate the antioxidant propertyof b. elegans species for the first time. materials and methods: different parts (leaf, stem and fruit) of the plant were extracted by using various solven...

Honey is a popular food product produced by honey bees that it is a well-known antimicrobial and antioxidant activity. Floral origin of honey plays an important role on its biological properties.This research was carried out to evaluate the antibacterial and antioxidant activity of four sample honey with different floral origin collected from the bee hive in the Golestan province in north of Ir...

Thioacetamide (TAA) has been used in development of animal models of acute hepatic encephalopathy (AHE). This experimental study was designed to evaluate effects of oral administration of vitamin C, vitamin E and their combination on liver and brain enzymes and their histologic and ultrastructure changes. Eighty Wistar rats were included and divided into five groups (16 each). Group 1 (control)...

the hawthorn fruits have been used as food and medicine for centuries. in the present study, pulp and seed extract of crataegus elbursensis rech. f. fruits belonging to the family rosaceae and native of northern part of iran were evaluated for the polyphenol contents, antiradical, antioxidant, and antibacterial activities. the total phenolic, flavonoid, and anthocyanin contents of methanolic pu...

The number of patients with end-stage renal disease is growing rapidly in Asia. Patients with end stage renal disease failure (ESRD) undergoing long term hemodialysis (HD) are at risk for high oxidative stress. There is paucity of information with regard to oxidative stress during HD. Therefore, the aim of the present study was to evaluate catalase enzyme activity in erythrocytes and the total ...

Introduction: Increasing of food-related diseases has led to the perception of diet importance. Plant-derived products (especially tea) as important sources of antioxidant and antimicrobial compounds play a major role in reducing food pathogens. In this study, total phenolic content, antioxidant and antimicrobial activity of four tea extracts including green tea, white, black and red teas were ...