Index Catalog // ScholarsArchive@OSU

Creator:: Hernandez-Rocha, Cristian, Naour, Sebastian, Alvarez-Lobos, Manuel, and Paredes-Sabja, Daniel
Abstract:: English: Clostridium difficile is an emerging anaerobic, spore forming pathogen, recognized as the etiological agent of ~ 30% of antibiotic associated diarrheas. Clinical symptoms can fluctuate from mild to moderate diarrhea, pseudomembranous colitis and toxic megacolon. The incidence of C. difficile associated infections (CDAI) is ~ 1% of total hospitalized...
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Full Text:: . Infecciones causadas por Clostridium diffi cile: una visión actualizada Cristian Hernández-Rocha, Sebastián

Creator:: Hernández-Rocha, Cristian, Barra-Carrasco, Jonathan, Guzmán, Ana María, Paredes-Sabja, Daniel, Lezcano, Gabriel, Zoroquiaín, Pablo, and Álvarez-Lobos, Manuel
Abstract:: The most frequent cause of pseudomembranous colitis is Clostridium difficile (C. difficile) infection. This type of colitis is characterized by an endoscopic pattern of numerous small, yellowish or whitish plaques diffusely distributed, which typically compromises the rectum extending to proximal colon. Occasionally, the pseudomembranes compromise only the transverse or right...
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Full Text:: Cristian Hernández-Rocha, Jonathan Barra-Carrasco, Ana María

Creator:: Hernandez-Rocha, Cristian, Barra-Carrasco, Jonathan, Pizarro-Guajardo, Marjorie, Ibanez, Patricio, Bueno, Susan M., Sarker, Mahfuzur R., Maria Guzman, Ana, Alvarez-Lobos, Manuel, and Paredes-Sabja, Daniel
Abstract:: The increased severity of Clostridium difficile infection is primarily attributed to the appearance of an epidemic strain characterized as PCR ribotype 027. The only report that identified epidemic C. difficile ribotype 027 in an American country outside of North America comes from Costa Rica, raising the possibility that strains 027...
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Full Text:: Hernández-Rocha,1 Jonathan Barra-Carrasco,1 Marjorie Pizarro-Guajardo, Patricio Ibáñez, Susan M. Bueno

Creator:: Pérez, Claudia A., Lagos, Nelson A., Saldías, Gonzalo S., Waldbusser, George, and Vargas, Cristian A.
Abstract:: Anthropogenic modification watersheds and climate change have altered export from fluvial systems causing changes to the carbonate chemistry of river-influenced near shore environments. To determine the possible effects of riverine discharges on the mussel Perumytilus purpuratus, we performed in situ transplant experiments between river-influenced and open coastal habitats with contrasting...
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Full Text:: Cristian A. Vargas*2,4 1Programa de Doctorado en Ciencias Ambientales, Department of Aquatic System

Creator:: Benavente, Javiera N., Seeb, Lisa W., Seeb, James E., Arismendi, Ivan, Hernández, Cristián E., Gajardo, Gonzalo, Galleguillos, Ricardo, Cádiz, Maria I., Musleh, Selim S., and Gomez-Uchida, Daniel
Abstract:: Knowledge about the genetic underpinnings of invasions—a theme addressed by invasion genetics as a discipline—is still scarce amid well documented ecological impacts of non-native species on ecosystems of Patagonia in South America. One of the most invasive species in Patagonia’s freshwater systems and elsewhere is rainbow trout (Oncorhynchus mykiss). This...
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Full Text:: , J. N., Seeb, L. W., Seeb, J. E., Arismendi, I., Hernández, C. E., Gajardo, G., ... & Gomez-Uchida

Creator:: Pérez, Claudia A., DeGrandpre, Michael D., Lagos, Nelson A., Saldías, Gonzalo S., Cascales, Emma-Karin, and Vargas, Cristian A.
Abstract:: Freshwater discharge affects the biogeochemistry of river-influenced nearshore environments by contributing with carbon and nutrients. An increase in human activities in river basins may alter the natural riverine nutrients and carbon export to coastal ecosystems. Along a wide latitudinal range (32° 55'S-40° 10'S), this study explores the role of climate...
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Full Text:: Cascales6, and Cristian A. Vargas2 1Programa de Doctorado en Ciencias Ambientales, Faculty of Environmental

Creator:: Wang, Yanli, Tang, Longteng, Liu, Weimin, Zhao, Yongxin, Oscar, Breland G., Campbell, Robert E., and Fang, Chong
Abstract:: Fluorescent proteins (FPs) are luminescent biomolecules that emit characteristic hues upon irradiation. A group of calmodulin (CaM)-green FP (GFP) chimeras have been previously engineered to enable the optical detection of calcium ions (Ca²⁺). We investigate one of these genetically encoded Ca²⁺ biosensors for optical imaging (GECOs), GEM-GECO1, which fluoresces green...
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