Individual male and female schistosomes approximately three weeks of age were implanted into the portal venous system of C57Bl/6 mice to produce infections with a single pair of Schistosoma mansoni or S. japonicum. Mice were killed between seven and 54 weeks after infection. Worm fecundity was measured by counting eggs accumulating in the tissues and eggs passed in the feces. Schistosoma manson...

Serum circulating anodic antigen (CAA) levels were compared with faecal egg counts in four subsequent population samples, randomly selected at 8-month intervals, in a recent Schistosoma mansoni focus in northern Senegal. In all four samples, antigen levels showed the same age-intensity profiles as egg counts, with a strong decline in adults. Also across population samples, a consistent relation...

The action of intra- and interspecific competition, mediated by density-dependent effects on growth, was investigated among the 3 helminth species found in the alimentary tract of 104 cormorants, Phalacrocorax carbo sinensis. Intraspecific density-dependent effects on worm sizes were observed in the abundant nematode Contracaecum rudolphii, as shown by a negative correlation between mean worm s...

This article contains the results of experimental research on quantity root tubers let through to creasing rollers clearance between worm screw and feeding transporter working branch in combined crop cleaner. It also describes set technique used for dummy tuber transportation research, with size 0.05; 0.1; 0.15 0.2 m diameter. The has been held basing PFE 24 type planned experiment realisation....

BACKGROUND Currently, the metallic syndesmotic screw is the gold standard in the treatment of syndesmotic disruption. Whether or not this screw needs to be removed remains debatable. The aim of the current study was to determine the complications which occur following routine removal of the syndesmotic screw following operative treatment of unstable ankle fractures. METHODS This was a retrosp...

BACKGROUND Screw fixation of pelvic ring fractures is a common, but demanding procedure and navigation techniques were introduced to increase the precision of screw placement. The purpose of this case series was the evaluation of screw misplacement rate and functional outcome of percutaneous screw fixation of pelvic ring disruptions using a 2D navigation system. METHODS Between August 2004 an...

OBJECTIVES The antischistosomal properties of the marketed antiandrogens bicalutamide, flutamide, nilutamide and cyproterone acetate were studied both in vivo and in vitro. METHODS Schistosoma mansoni-infected mice were treated orally with 50-400 mg/kg of the antiandrogens 3 and 7 weeks post-infection. In addition, three drug combinations of nilutamide and praziquantel (200/100, 100/100 and 1...

Recent worm epidemics proved beyond any doubt that the existing centralized worm containment mechanisms are no longer adequate to protect vulnerable systems, resulting in a shift towards distributed cooperative systems that aim to safeguard and immunize the susceptible population by automatically vaccinating them. We present PROMIS, a P2P based algorithm that provides its participants with earl...

Only three cases of human infection by anisakid nematodes have been reported in Chile since 1976. In the present case, an anisakid worm, identified as a fourth-stage Pseudoterranova decipiens larva, was removed with a gastroendoscopic biopsy clipper from the stomach of a 45 year-old man from southern Chile. The patient, who presented acute epigastric pain and a continuous sensation of having an...

Ascariasis, a worldwide parasitic disease, is regarded by some authorities as the most common parasitic infection in humans. The causative organism is Ascaris lumbricoides, which normally lives in the lumen of the small intestine. From the intestine, the worm can invade the bile duct or pancreatic duct, but invasion into the gallbladder is quite rare because of the anatomical features of the cy...