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  1. Home
  2. Browse by Author

Browsing by Author "Pinedo, George"

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    A novel surgical approach to slow-transit constipation: Report of two cases
    (LIPPINCOTT WILLIAMS & WILKINS, 2008) Pinedo, George; Leon, Francisca; Molina, Maria Elena; Soto, Gonzalo; Lopez, Francisco; Zuniga, Alvaro
    INTRODUCTION: Slow-transit constipation after proper diagnosis and extensive medical therapy may have a surgical solution. Total abdominal colectomy and ileorectal anastomosis, at our institution, is the surgical procedure of choice. Nonetheless, patients may reject this alternative because of morbidity.
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    Increased production of soluble TLR2 by lamina propria mononuclear cells from ulcerative colitis patients
    (ELSEVIER GMBH, 2012) Candia, Enzo; Diaz Jimenez, David; Langjahr, Patricia; Nunez, Lucia E.; de la Fuente, Marjorie; Farfan, Nancy; Lopez Kostner, Francisco; Abedrapo, Mario; Alvarez Lobos, Manuel; Pinedo, George; Beltran, Caroll J.; Gonzalez, Carlos; Gonzalez, Maria Julieta; Quera, Rodrigo; Hermoso, Marcela A.
    Toll-like receptor 2 (TLR2) is a type I pattern recognition receptor that has been shown to participate in intestinal homeostasis. Its increased expression in the lamina propria has been associated with the pathogenesis in inflammatory bowel disease (IBD), such as ulcerative colitis (UC) and Crohn's disease (CD). Recently, soluble TLR2 (sTLR2) variants have been shown to counteract inflammatory responses driven by the cognate receptor. Despite the evident roles of TLR2 in intestinal immunity, no study has elucidated the production and cellular source of sTLR2 in IBD. Furthermore, an increase in the population of activated macrophages expressing TLR2 that infiltrates the intestine in IBD has been reported. We aimed first to assess the production of the sTLR2 by UC and CD organ culture biopsies and lamina propria mononuclear cells (LPMCs) as well as the levels of sTLR2 in serum, and then characterize the cell population from lamina propria producing the soluble protein.
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    Laparoscopic total colectomy for colonic inertia: surgical and functional results
    (2009) Pinedo, George; Jose Zarate, Alejandro; Garcia, Eduardo; Elena Molina, Maria; Lopez, Francisco; Zuniga, Alvaro
    Total colectomy is the surgery of choice for colonic inertia (CI) when medical treatment has failed. Laparoscopic total colectomy has demonstrated to be a feasible technique.
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    The Volume of Lactated Ringer's Solution Required to Maintain Preload and Cardiac Index During Open and Laparoscopic Surgery
    (LIPPINCOTT WILLIAMS & WILKINS, 2009) Concha, Mario R.; Mertz, Veronica F.; Cortinez, Luis I.; Gonzalez, Katya A.; Butte, Jean M.; Lopez, Francisco; Pinedo, George; Zuniga, Alvaro
    BACKGROUND: Recent studies have emphasized the importance of perioperative fluid restriction. However, fluid restriction regimens may increase the likelihood of insufficient perioperative fluid administration or may result in excess intravascular crystalloid replacement. We postulate that the use of transesophageal echocardiography may reduce the amount of crystalloid administered during open and laparoscopic colorectal surgery.

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