نتایج جستجو برای: propyl paraben
تعداد نتایج: 4641 فیلتر نتایج به سال:
Background and purpose: Acne is a chronic inflammatory disease of the pilosebaceous glands caused by opportunistic microorganisms. The Rhamnus cathartica is known to have biological and antioxidant properties. This research aimed at investigating the in vitro effect of gel containing 5% R. cathartica extract on acne vulgaris. Materials and methods: The gel formulation contained 25g of dried R...
Background: Permethrin is a drug used to cure pediculosis known as head lice. This drug is available in two forms: 1) permethrin topical cream 5%, 2) permethrin shampoo 1%. The aim of this study was to find a method and define the simultaneous cis and trans isomers for permethrin, methyl paraben, propyl paraben and butylated hydroxytoluene in topical cream 5% using the method high-performance l...
Parabens are a group of antimicrobial preservatives widely used in cosmetics, pharmaceuticals, and in foods. Previous in vitro and in vivo studies have shown weak estrogenic effects of some parabens. Thus, especially, exposure of fetus and infants via the mother is a matter of concern. In order to obtain more knowledge about the distribution of ethyl paraben and butyl paraben in pregnant rats a...
God's crown is one of the plants with various components flavonoid as these components, which an abundant plant metabolite component in nature that significantly functions for plant's growth and antioxidants. This study aimed to examine The Concentration Variation Effect 70% Ethanol Extract from Crown (Phaleria Macrocarpa) Towards Physical Stability Cream Preparations by variating extract conce...
The effect of mixtures of antioxidants butylated hydroxyanisol (BHA) and propyl paraben (PP) on lag phase, growth rate and ochratoxin A (OTA) production by four Aspergillus section Nigri strains was evaluated on peanut meal extract agar (PMEA) under different water activities (a(w)). The antioxidant mixtures used were: BHA + PP (mM), M1 (0.5 + 0.5), M2 (1.0 + 0.5), M3 (2.5 + 0.5), M4 (0.5 + 1.0...
The effect of formulation factors on permeation of diclofenac from some experimental and marketed aqueous eye drops through excised goat cornea was evaluated. Raising the pH of formulation from 6.0 to 8.0 or diclofenac concentration from 0.05 to 0.15% (w/v) or adjusting tonicity with mannitol or addition of viscolizing agent decreased apparent permeability coefficient (Papp). Formulation (pH 7....
Influence of pH, buffer, preservative, tonicity and viscosity modifiers on in vitro transcorneal permeation of ofloxacin was studied using excised goat cornea. Permeation studies were carried out by putting 1 ml of test formulation on the cornea (0.78cm) mounted between the donor and receptor compartments of an all glass modified Franz diffusion cell and measuring ofloxacin concentration in the...
In this paper, the electrochemical behaviour of several parabens preservatives, i.e. esters of p-hydroxybenzoic acid, methyl-, ethyl- and propyl-4-hydroxybenzoates as methyl-, ethyl- and propyl-parabens (MB, EB, and PB), has been investigated at a commercial boron-doped diamond electrode (BDDE), especially in the anodic potential range, in both hydro-alcoholic and aqueous media. The cyclic volt...
We have evaluated the ameliorative effect of ginger extract on paraben (p-hydroxybenzoic acid)-induced lipid peroxidation in the liver of mice. Adult female albino mice were orally administered with 2.25 or 4.50 mg of paraben in 0.2 mL olive/animal/day (67.5 and 135 mg/kg of body weight) for 30 days. The results revealed significantly higher (p < or = 0.05) lipid peroxidation in the liver of pa...
Throughout the world, there has been an increasing incidence of fungal infections, and because of drug resistance and toxicity associated with long-term treatment with antifungal drugs search for new drugs to treat fungal infections is ongoing. The aim of this study was to evaluate the physicochemical properties and stability of creams containing different concentrations of Zataria mu...
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