yeasts, especially saccharomyces cerevisiae, are one of the oldest organisms with broad spectrum of applications, owing to their unique genetics and physiology. yeast extract, i.e. the product of yeast cells, is extensively used as nutritional resource in bacterial culture media. the aim of this study was to develop a simple, rapid and cost benefit process to produce the yeast extract. in this ...

objective: achillea millefolium (a. millefolium) is known as an orexigenic herb in iranian traditional medicine. in this study, the possible orexigenic effect of hydro-alcoholic extract of a. millefolium was investigated by measuring plasma ghrelin level.materials and methods: thirty male wistar rats were divided into five groups. control group received water. treatment groups received 50, 100 ...

antioxidant and immunomodulatory effects of anthocyanins are abundant in berberry fruits suggesting that they may have beneficial effects on inflammatory bowel diseases (ibd). the present study was carried out to investigate the anti-colitic effect of berberis vulgaris fruit extract (bfe) compared to berberine chloride (bec) and corticosteroids using an animal model of acetic acid induced exper...

polycystic ovary syndrome (pcos) is a reproductive and metabolic disorder in which thelevel of oxidative elements in blood rises. green tea is a potent antioxidant since it containscatechins. in this study, the effect of hydro-alcoholic green tea extract on pcos rats was examined.for pcos induction, 96 mature wistar rats were given estradiol valerate. after 60 days, therats were divided into fo...

pre-menstrual syndrome is one of the most common disorders in women and causes impairment in work and social relationships. several treatment modalities have been proposed, one of which is herbal medicines. considering the properties of wheat germ, this study aimed to determine the effects of wheat germ extract on the symptoms of premenstrual syndrome.this triple blind clinical trial was conduc...

malaria is considered a major health problem in iran. there are different methods for vector control. in this study we tested the larvicidal effects of some iranian plants. the methanolic extracts of 11 plants were prepared with percolation method. the larvicidal activities of them against malaria vector, anopheles stephensi were studied using world health organization standard method. all lc50...

methods s. cerevisiae was cultured and then disrupted by sonication. after centrifugation, the harvested supernatant was considered to be a cytoplasmic extract. the protein concentration was determined by the biuret method and the extract was diluted to concentrations of 500, 1000, and 2000 µg protein/ml. the frequencies of apoptosis and necrosis were assessed in extract-treated k562 cells by e...

background & aim: anise studies have demonstrated different properties such as anti-cancer, anti-fungal,   antibacterial, antioxidant, strengthen the liver, gastrointestinal tract,   wounds heal and strengthen the nerve cells. outbreaks of listeriosis in the   general population are 7.0 per 100,000 populations. pregnant women, infants,   the elderly and immunocompromised patients or those weakn...

traditionally, peganum harmala seeds (p.h) have been extensively used in the asia region. we have previously reported the increase of fear behavior by systemic administration of p.h extract. here, we evaluated the effect of central administration of the extract on the fear behavior. method: methanolic extract of the plant's seeds (37% humidity) was prepared for the investigation. elevated ...

abstract       background and objective: enterococci are relatively nonvirulent bacteria that rarely cause disease. antimicrobial treatment of enterococci is often challenging due to their antibiotic resistance. this study aimed to investigate the antibacterial activity of aqueous extract of garlic against enterococcal isolates.     methods: in this descriptive study, 120 enterococcus isolates ...