seeds of the castor bean plant ricinuscommunis l (cb) contain ricin toxin (rt), one of the most poisonous naturally-occurring substances known. ricin toxin, a water-soluble glycoprotein that does not partition into the oil extract, is a ribosome-inactivating toxin composed of two chains, labeled a and b. severity of the toxicity varies depending on the route of exposure to the toxin. inhalation...

background: aflatoxins are found in the most types of foods such as corn, peanuts, pistachio, rice, milk, and etc. these toxins may cause several adverse health effects, notably cancer. the main aim of this study was to evaluate excretion level of aflatoxin m1 (afm1), as a biomarker of aflatoxin b1 exposure, in urine samples of iranian population. also, relationship between diet and urinary exc...

parasitoids of the genus, trichogramma are the most widely used natural enemies for biological control of pests worldwide. the presence of flowering plants can improve efficiency of biological control agents by supplying sugar resource for parasitoids. in this study, two experiments were performed under laboratory condition (at 25±1ºc, 60±10% rh and a photoperiod 16l:8d), to evaluate the effect...

introduction individual x-ray diffraction patterns of biological tissues are obtained via interference of coherent scattering with their electrons. many scientists have distinguished normal and cancerous breast tissue, bone density, and urinary stone types using the x-ray diffraction patterns resulting from coherent scattering. the goal of this study was to introduce an optimized method for obt...

context to provide an updated review of published literature on the anti-oxidant, anti-bacterial and anti-inflammatory properties of honey. evidence acquisition cinahl, biomed central, cochrane library, medline and embase data bases and reference lists were used to find randomized controlled trials and review articles. randomized controlled trials using honey with a comparator were reviewed, al...