microcerotermes diversus silvestri (isoptera: termitidae) is the most economically destructive wood pest in structures in khuzestan province (iran). chemicals such as essential oils and plant extracts that are compatible with the environment and have high potential to be used in integrated pest management programs are extremely important resources. this study evaluated contact and digestive tox...

BACKGROUND This is the first randomized, double-blind, placebo-controlled trial (EUDRACT No. 2009-013923-43) evaluating nickel oral hyposensitizing treatment (NiOHT) in patients with "systemic nickel allergy syndrome" (SNAS), characterized by Ni-allergic contact dermatitis and systemic reactions after eating Ni-rich food. METHODS Adults with positive Ni-patch test, who reported symptoms sugge...

Ingested pollutants may elicit digestive toxicity following incorporation into consumer tissues. This post-assimilatory toxicity may include tissue damage influencing synthesis of digestive enzymes, gut transit time and absorption of nutrients as well as pollutants by the gut epithelium. This study investigated impacts of chronic field exposure on gut residence time (GRT), feces elimination rat...

three different solvents namely; hexane, ethyl acetate and ethanol were used in partitioning the extracts obtained from piper guineense seeds and solvent extracts were investigated for the presence or absence of secondary metabolites. extracts were further evaluated on adult maize weevils, sitophilus zeamais. experiment was carried out under laboratory conditions at 27 ± 2 °c ambient temperatur...

The focus of this international meeting is to correlate advances in the morphologic evaluation and integration of findings in the digestive tract and pancreas with functional, cellular and molecular knowledge in a series of plenary and poster sessions. The meeting will provide a venue for interactive discussion of the current state of knowledge in both conventional and specialized nonclinical s...

b a ckground: the efficacy of essential oil of chenopodium ambrosioides flowering aerial parts and its three main active ingredients was evaluated against blattella germanica male adults. m e t hods: composition of essential oil was determined by gc-ms. topical application bioassay was used to evalu- ate contact toxicity of essential oil and three main components. fumigant toxicity of essential...

Effects of four tropical plant (Aframomum melegueta, Zanthoxylum zanthoxyloides, Piper guineense and Eugenia aromatica) were investigated under tropical laboratory storage conditions for the protection of cowpea seeds against insect infestation. The plant materials were pulverised into fine powder after air drying and admixed with 20 g of cowpea seeds at the ...