A series of 111 thiosemicarbazones of 2-acetylpyridine, 2-acetylquinoline, 1-acetylisoquinoline, and related compounds were evaluated as inhibitors of herpes simplex virus in vitro and in a cutaneous herpes guinea pig model. All derivatives tested were potent inhibitors of virus replication with mean 50% inhibitory concentrations of 1.1 micrograms/ml for both type 1 and 2 herpes simplex virus. ...

the isocyanates are widely used as precursors of polyurethane products, as well as carbamate insecticides. toluene 2,4-diisocyanate (tdi) is one of the most important commercially used isocyanates. humans may be exposed to tdi by inhalation, ingestion, dermal and eye contact. tdi is a powerful irritant to the mucosal membranes of the gastrointestinal and respiratory tracts, eyes and the skin. p...

The majority of patients affected with nitrofurantoin pulmonary toxicity are elderly women [1]. The proposed mechanism of toxicity is either idiosyncratic oxydant-mediated tissue injury by nitrofurantoin metabolites causing depletion of cellular glutathione (chronic form) or by immunological response induced by nitrofurantoin metabolites acting as heptanes and resulting a hypersensitivity react...

Uvaria chamae is used in the treatment of sickle cell crisis Benin. The aim this work to determine safety roots aqueous extract wistar rats. was obtained by maceration. tests for Acute Oral Toxicity (AOT) and Sub-Chronic (SCT) respectively forced gavage a single dose 2000 mg / Kg 200 body weight 28 days were performed on female Wistar animals, serum creatinine, transaminases number white blood ...

Abstract Background Azadirachta indica , Khaya senegalensis Anogeissus leiocarpus and Tamarindus are important ethnomedicinal plants used for health mitigation since the history of mankind. They discretionarily in folkloric medicine on premise that they natural products devoid synthetic preservatives. However, nature endows with metabolites warding off potential attacks from animals environment...

Explanation.................................................................................................... 275 Evaluation for acceptable daily intakes ........................................................ 276 Biochemical aspects ................................................................................ 277 Absorption distribution and excretion ........................................

Explanation.................................................................................................... 333 Evaluation for acceptable daily intake .......................................................... 333 Biochemical aspects ................................................................................ 333 Absorption, distribution and excretion ......................................

the mechanism by which lead may cause a perturbotion in the nevous system is through the nitric oxide synthase. in this study the effect of lead acetate on the hippocampal constitutive nitric oxide production was studied. the variation in the nitric oxide production may contribute to physiological lead neurotoxicity in vivo. different concentrations of lead acetate (10-9 to 10-6 m), wre added t...

objective(s):copper oxidenanoparticles have different industrial applications so it is inevitable that nanoparticulate products finally find their way into aquatic ecosystems. nevertheless there is little information available about their effects on some of edible fish. the present study aims to determine the acute toxicity and evaluate the effect of two sub-acute concentrations (50 and 70% 96 ...