Browsing by Subject "Placenta"

Now showing items 1-20 of 27

    • Barium, Tea and Sodium Sensitive Potassium Channels are Present in the Human Placental Syncytiotrophoblast ... 
      Vallejos, C.; Guerrero, I.; Riquelme Pino, Gloria; Díaz Moreno, Pablo (W B SAUNDERS CO LTD, 2008-10)
      The human placental syncytiotrophoblast (hSTB) is a polarized epithelial structure, without paracellular routes, forming the main barrier for materno–fetal exchange. There is ample evidence suggesting the presence of ...
    • Blog experiences: Compared placenta Experiencias de blog: Placenta comparada 
      Prieto, Ruth; Smok, Carolina; Rojas, Mariana (Universidad de la Frontera, 2011)
      Nowadays, Tics are state of the art methodology used at all educational levels. Therefore, we designed a blog spot about Compared Placenta. Visitors found original content and pictures of different development stages. Ten ...
    • Cadmium exposure during pregnancy reduces birth weight and increases maternal and foetal glucocorticoids 
      Ronco Macchiavello, Ana María; Urrutia,; Montenegro,; Llanos, Adolfo (2009)
      Cadmium exposure induces low birth weight through unknown mechanisms. Since low birth weight is associated to foetal exposure to high glucocorticoids (GC) concentrations, we hypothesized that low birth weight induced by ...
    • Características Morfológicas y Morfométricas de la Placentade Término, en Recién Nacidos Pequeños para la ... 
      Prieto Gómez, Ruth; Matamala, Fernando; Rojas, Mariana (SOC CHILENA ANATOMIA, 2008-09)
      El metabolismo placentario, el intercambio de sustancias y la producción de hormonas son funciones vitales de la placenta para mantener y promover el desarrollo normal del feto. Existen factores de riesgo que alteran este ...
    • Congenital transmission of apicomplexan parasites: a review 
      Rojas Pirela, Maura Lina; Medina, Lisvaneth; Rojas, María Verónica; Liempi Manquel, Ana Isabel; Castillo Rivas, Christian Raúl; Pérez Pérez, Elizabeth; Guerrero Muñoz, Jesús; Araneda, Sebastián; Kemmerling Weis, Ulrike (Frontiers Media, 2021)
      Apicomplexans are a group of pathogenic protists that cause various diseases in humans and animals that cause economic losses worldwide. These unicellular eukaryotes are characterized by having a complex life cycle and the ...
    • Differential expression of potassium channels in placentas from normal and pathological pregnancies: Targeting ... 
      Riquelme, Gloria; De Gregorio, Nicole; Vallejos, Catalina; Berrios, Macarena; Morales, Bárbara (2012)
      Potassium channels play important physiological roles in human syncytiotrophoblasts (hSTBs) from placenta, an epithelium responsible for maternal-fetal exchange. Basal and apical plasma membranes differ in their lipid and ...
    • Endothelial heterogeneity in the umbilico-placental unit: DNA methylation as an innuendo of epigenetic diversity 
      Casanello, Paola; Schneider, Daniela; Herrera, Emilio A.; Uauy Dagach-Imbarack, Ricardo; Krause, Bernardo J. (Frontiers Media SA, 2014)
      The endothelium is a multifunctional heterogeneous tissue playing a key role in the physiology of every organ. To accomplish this role the endothelium presents a phenotypic diversity that is early prompted during vascular ...
    • Ex vivo infection of human placental explants by trypanosoma cruzi reveals a microRNA profiles Similar to ... 
      Medina, Lisvaneth; Guerrero Muñoz, Jesús Alejandro; Liempi Manquel, Ana Isabel; Castillo Rivas, Christian; Ortega, Yessica; Sepúlveda, Alfredo; Salomó Martínez, Fernando; Maya Arango, Juan Diego; Kemmerling Weis, Ulrike (MDPI, 2022)
      Congenital Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, is responsible for 22.5% of new cases each year. However, placental transmission occurs in only 5% of infected mothers and it has been proposed ...
    • Expression and protein content of IGF-I and IGF-I receptor in placentas from small, adequate and large for ... 
      Iñíguez Vila, Germán; González, C. A.; Argandoña, F.; Kakarieka, E.; Johnson, M. C.; Cassorla Goluboff, Fernando (2010)
      In humans, a direct relationship between IGF-I cord blood levels and birth weight has been demonstrated. To determine the placental IGF-I, IGF-II and IGF-IR mRNA and protein contents in full-term pregnancies from appropriate ...
    • Fetal growth restriction is related to placental levels of cadmium, lead and arsenic but not with antioxidant ... 
      Llanos Silva, Miguel; Ronco Macchiavello, Ana María (2009)
      The objectives of this study were: to measure some essential metals and toxicants in placentas of mothers delivering neonates with fetal growth restriction, and to establish potential associations between environmental ...
    • Glyburide treatment in gestational diabetes is associated with increased placental glucose transporter 1 ... 
      Paredes Díaz, Paula Andrea; Dimasuay, Kris Genelyn; Koele Schmidt, Lindsey; Jang, Brian; Barbour, Linda A.; Jansson, Thomas; Powell, Theresa L. (Elsevier, 2017)
      Use of glyburide in gestational diabetes (GDM) has raised concerns about fetal and neonatal side effects, including increased birth weight. Placental nutrient transport is a key determinant of fetal growth, however the ...
    • High altitude pregnancies and vascular dysfunction: observations From Latin American studies 
      González Candia, Alejandro Antonio; Herrera Videla, Emilio Augusto (Frontiers Media, 2021)
      An estimated human population of 170 million inhabit at high-altitude (HA, above 2,500 m). The potential pathological effects of HA hypobaric hypoxia during gestation have been the focus of several researchers around the ...
    • Host-parasite interaction: Changes in human placental gene expression induced by Trypanosoma cruzi 
      Castillo, Christian; Carrillo, Ileana; Libisch, Gabriela; Juiz, Natalia; Gabriel Schijman, Alejandro; Robello, Carlos; Kemmerling Weis, Ulrike (BioMed Central Ltd., 2018)
      © 2018 The Author(s). Background: Chagas disease is caused by Trypanosoma cruzi, a parasite endemic to Latin America. Most infections occur in children by vector or congenital transmission. Trypanosoma cruzi establishes a ...
    • IFPA Meeting 2010 Workshops Report II: Placental pathology; Trophoblast invasion; Fetal sex; Parasites and ... 
      Al-Khan, A.; Aye, I. L.; Barsoum, I.; Borbely, A.; Cebral, E.; Cerchi, G.; Clifton, V. L.; Collins, S.; Cotechini, T.; Davey, A.; Flores Martin, J.; Fournier, T.; Franchi, A. M.; Fretes, R. E.; Graham, C. H.; Godbole, G.; Hansson, S. R.; Headley, P. L.; Ibarra, C.; Jawerbaum, A.; Kemmerling Weis, Ulrike; Kudo, Y.; Lala, P. K.; Lassance, L.; Lewis, R. M.; Menkhorst, E.; Morris, C.; Nobuzane, T.; Ramos, G.; Rote, N.; Saffery, R.; Salafia, C.; Sarr, D.; Schneider, H.; Sibley, C.; Singh, A. T.; Sivasubramaniyam, T. S.; Soares, M. J.; Vaughan, O.; Zamudio, S.; Lash, G. E. (Elsevier, 2011)
      Workshops are an important part of the IFPA annual meeting. At IFPA Meeting 2010 diverse topics were discussed in twelve themed workshops, six of which are summarized in this report. 1. The placental pathology workshop ...
    • IFPA meeting 2016 workshop report III: Decidua trophoblast interactions; trophoblast implantation and ... 
      Aplin, John D.; Beristain, Alexander; Da Silva Arnold, Sonia; Dunk, Caroline; Duzyj, Christina; Golos, Thaddeus G.; Kemmerling Weis, Ulrike; Knoefler, Martin; Mitchell, Murray D.; Olson, David M.; Petroff, Margaret; Pollheimer, Juergen; Reyes, Leticia; Schedin, Pepper; Soares, Michael J.; Stencel Baerenwald, Jennifer; Thornburg, Kent L.; Lash, Gendie E. (Elsevier, 2017)
      Workshops are an important part of the IFPA annual meeting as they allow for discussion of specialised topics. At IFPA meeting 2016 there were twelve themed workshops, four of which are summarized in this report. These ...
    • Immunohistochemical expression of von Willebrand factor in the preeclamptic placenta 
      Rodrigo Salinas, Ramón; Parra Cordero, Mauro; Bosco Becerra, Cleofina; Solís González, Jaime; Gutiérrez, Rodrigo; Barja Yáñez, Pilar (2011)
      Preeclampsia is a high-prevalence systemic pregnancy disorder associated with maternal and foetal mortality. Its pathogenesis is unknown, but it is thought that oxidative stress and endothelial dysfunction may play a ...
    • Maternal testosterone and placental function: Effect of electroacupuncture on placental expression of ... 
      Fornes, Romina; Hu, Min; Maliqueo Yevilao, Manuel; Kokosar, Milana; Benrick, Anna; Carr, David; Billig, Hakan; Jansson, Thomas; Manni, Luigi; Stener-Victorin, Elisabet (Elsevier, 2016)
      Women with polycystic ovary syndrome (PCOS) have elevated circulating androgens during pregnancy and are at an increased risk of adverse pregnancy outcomes. Here we tested the hypotheses that maternal androgen excess ...
    • Metformin increases norepinephrine transporter expression in placenta of patients with polycystic ovary syndrome 
      Medina, G.; Maliqueo Yevilao, Manuel; Crisosto King, Nicolás; Echiburú López, Bárbara; Sir Petermann, Lidia; Lara Peñaloza, Hernán (Verduci Publisher, 2017)
      OBJECTIVE: To evaluate the norepinephrine (NE) and placental NE transporter (NET) in women with polycystic ovary syndrome (PCOS) non-treated and treated with metformin during pregnancy. PATIENTS AND METHODS: We studied ...
    • Morphometric and morphological characteristics of the placenta at term, in small for gestational age newborns ... 
      Prieto, Gómez Ruth; Matamala, Fernando; Rojas, Mariana (2008)
      The placental metabolism, the exchange of substances and the production of hormones are vital functions of the placenta to maintain and promote the normal development of the fetus. There are risk factors that disrupt this ...
    • Na+, K+-ATPase and Ca2+-ATPase activities in basal and microvillous syncytiotrophoblast membranes from ... 
      Abad, Cilia; Vallejos, Catalina; De Gregorio, Nicole; Paredes Díaz, Paula Andrea; Chiarello, Delia I.; Contreras Mendoza, Mariana; Piñero, Sandy; Proverbio, Teresa; Botana, Desirée; Rojas, Próspero; Riquelme, Gloria; Proverbio, Fulgencio; Marín, Reinaldo (Informa Healthcare, 2015)
      Objective: The aim of this study is to evaluate the effect of preeclampsia on the level of lipid peroxidation, activity and expression of both plasma membrane Ca2+- and Na+, K+-ATPases in syncytiotrophoblast. Methods: The ...