A three dimensional model of the basic Helix-Loop-Helix motif and its sequence specific recognition of DNA is described. The basic-helix I is modeled as a continuous ?-helix because no ?-helix breaking residue is found between the basic region and the first helix. When the basic region of the two peptide monomers are aligned in the successive major groove of the cognate DNA, the hydrophobi...

background: in this study the haemolymph components of infected and none infected lymnaea gedrosiana with xiphidiocercaria larvae was compared. methods: five hundred fifty lymnaea snails were collected from ilam and mazandaran prov­inces, iran, during 2008-2009. the snails were transported to the lab at tehran university of medi­cal sciences and their cercarial sheddings were studied. haemolmyp...

Limited studies have been done on nematodes of Bellamya bengalensis (fresh water snails) in the world. Following, our clinical observations on eye disease in a fish ponds, which were contained Bellamaya bengallensis snails, present study was made to determine of nematodes fauna of Bellamya bengalensis and evaluation of their medical and veterinary importance in Khouzestan province. For this pur...

Two snail species belonging to genus Lymnaea, L.auricularia and L.gedrosiana, were collected from 6 different districts of Shadegan area of Khoozestan. Eight percent of the total collections of the snails revealed the occurrence of larva in them. The prevalence of larva within the snails varied in different districts may be due to different geoclimatic conditions and availability of fresh water...

background: fasciolosis in livestock is a crucial concern in the globe, mainly due to its impact on human health. the aim of this study was to determine the rate of infection with fasciola gigantica (cobbold, 1855) larvae in the field-collected snails of lymnaea auricularia (linnaeus, 1785) from northwestern iran using a molecular approach. methods : a total of 6,759 pond snails were collected ...

introduction: some snails play an important role in the transmission of helminthes, mainly trematodes of medical and veterinary importance. there seems to be no information on the freshwater snails of gahar lake in lorestan province of iran. the present study aimed to identify medically important snails of this lake. methods: samples were collected from ten localities around gahar lake in april...

BACKGROUND Gastropod-borne parasites may cause debilitating clinical conditions in animals and humans following the consumption of infected intermediate or paratenic hosts. However, the ingestion of fresh vegetables contaminated by snail mucus and/or water has also been proposed as a source of the infection for some zoonotic metastrongyloids (e.g., Angiostrongylus cantonensis). In the meantime,...