Modern research indicates a possible synergistic effect of bacterial-protozoal infestations in the pathology upper gastrointestinal tract, among which special attention is paid to problem giardiasis. Other parasitic agents, particular Blastocystis spp, are also gaining some significance. The aim study prevalence H. pylori and protozoal chronic gastroduodenal diseases influence on indicators enz...

Pneumatosis cystoides intestinalis is a rare and often presents nonspecific symptoms. In this case, CT imaging revealed air collection within the wall of the ileum, which was more clearly defined using the lung window setting. When we consider pneumatosis cystoides intestinalis, we should evaluate CT using the lung window setting.

Pneumatosis Intestinalis is defined as the infiltration of gas into the bowel wall. It is a radiological and intra-operative finding of varying aetiology which varies from benign to life threatening conditions. We describe here a case of a 67 year old woman who presented with diffuse abdominal pain and was found to have Pneumatosis Intestinalis.

The ribosomal DNA internal transcribed spacer sequences of 13 unrelated Encephalitozoon intestinalis isolates obtained from human immunodeficiency virus (HIV)-infected patients with intestinal microsporidiosis were analyzed by gene amplification and DNA sequencing. Among these isolates, we found only one genetic lineage which suggests that E. intestinalis may have a clonal distribution in HIV-i...

Pneumoperitoneum in the presence of acute abdominal pain is well recognised as an indication for laparotomy. We present a case of acute abdominal pain in the presence of an incidental pneumoperitoneum secondary to the rupture of pneumatosis intestinalis. We will discuss the importance of clinical context in the diagnosis and management of pneumoperitoneum and pneumatosis intestinalis.

Macroalgal blooms occur worldwide and have the potential to cause severe ecological and economic damage. Narragansett Bay, RI is a eutrophic system that experiences summer macroalgal blooms composed mostly of Ulva compressa and Ulva rigida, which have biphasic life cycles with separate haploid and diploid phases. In this study, we used flow cytometry to assess ploidy levels of U. compressa and ...

Levels of radionuclides in seven species of marine brown algae and Ulva were determined to establish a baseline for the Northern Pacific Ocean/Bering Sea (Aleutian Islands). There were differences in levels among algal species and locations (Amchitka Island vs Kiska Island). No values were above the minimum detectable activity (MDA) level for (137)Cs, (129)I, (60)Co, (152)Eu, (90)Sr, and (99)Tc...

The green seaweed Ulva has been shown to detect signal molecules produced by bacteria. Biofilms that release N-acylhomoserine lactones (AHLs) attract zoospores--the motile reproductive stages of Ulva. The evidence for AHL involvement is based on several independent lines of evidence, including the observation that zoospores are attracted to wild-type bacteria that produce AHLs but are not attra...

Algal spores respond to many environmental variables, especially to chemical "cues". This chemotactic response can be utilized to attract spores, thereby colonization of a new substrata is possible to be influenced. In this attempt, four chemoattractant candidates were screened against spores of Ulva pertusa to reveal their efficiencies. Attachment and subsequent germination of Ulva spores were...