Browsing by Author "Rosso R., Pedro Pablo"
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- ItemA reply to MS Kramer, Isocaloric protein supplementation during pregnancy(2000) Mardones S., Francisco; Marshall Rivera, Guillermo; Rosso R., Pedro Pablo; Uiterwaal, D,
- ItemCalibers and Microtubules of Nerve Fibers: Differential Effect of Undernutrition in Developing and Adult Rats(1990) Álvarez Marín, Jaime; Faúndez González, Víctor; Rosso R., Pedro Pablo
- ItemCOMPARISON OF TWO PREGNANCY NUTRITIONAL EVALUATION STANDARDS IN ADOLESCENT CHILEAN PREGNANT WOMEN(2017) Villalobos Restovic, Andrea; Mardones, Francisco; Rosso R., Pedro Pablo; Farías Jofré, Marcelo; Villarroel del Pino, Luis A.; Bacallao, Jorge; Rojas, Ivan
- ItemCOMPARISON OF TWO PREGNANCY NUTRITIONAL EVALUATION STANDARDS USING NATIONAL DATA FROM URUGUAY(2017) Mardones, Francisco; Gonzalez, Nely; Bove, Maria Isabel; Rosso R., Pedro Pablo; Villarroel del Pino, Luis A.; Bacallao, Jorge; Farías Jofré, Marcelo
- ItemEffects of Long-Term Nitric Oxide Synthesis Inhibition on Plasma Volume Expansion and Fetal Growth in the Pregnant Rat(1995) Salas, Sofía P.; Altermatt, Fernando; Campos, Mauricio; Giacaman, Andrea; Rosso R., Pedro PabloWe conducted the present study to investigate whether the vasodilator nitric oxide plays a role in plasma volume homeostasis during pregnancy. Pregnant Sprague-Dawley rats were randomly assigned to a control group (n = 18) or to groups receiving 0.69 mmol/L (n = 11) or 1.7 mmol/L (n = 14) N-omega-nitro-L-arginine, a competitive inhibitor of nitric oxide synthetase, from gestational days 7 through 21. On day 20 systolic pressure was measured. On day 21 blood samples were taken for plasma volume, hematocrit, and hormonal measurements. Fetal and placental weights also were determined. Systolic pressure was significantly higher in experimental rats (101+/-6 and 115+/-6 mm Hg in the 0.69 and 1.7 mmol/L groups, respectively) than in controls (79.7+/-7.5 mm Hg), and plasma volume was lower (18.4+/-1.1 and 17.1+/-0.5 mL) than in controls (21.5+/-0.8 mL). Both experimental groups had increased hematocrit levels. Plasma renin activity was significantly lower in the experimental groups (11.5+/-3 and 7.2+/-1.5 ng angiotensin I/mL per hour) than in controls (21.9+/-2.7 ng angiotensin I/mL per hour); however, no changes were observed in aldosterone levels. Experimental groups had lower fetal weight (4.6+/-0.1 and 5.1+/-0.1 g) than controls (5.5+/-0.1 g). In addition, fetal hindlimb hypoplasia was observed in the experimental groups. In conclusion, the present data indicate that long-term N-omega-nitro-L-arginine administration to pregnant rats leads to increased blood pressure, reduced plasma volume expansion, lower plasma renin activity, and fetal growth retardation. These results suggest that nitric oxide may play an important role in maternal systemic vasodilatation and indirectly in plasma volume homeostasis and fetal growth.
- ItemInvestigación en las Universidades Chilenas: Realidades y Desafíos(2004) Rosso R., Pedro Pablo; Guesalaga Meissner, Andrés; Vio Lagos, Carlos P.
- ItemNUTRITION OF WOMEN IN CHILE(2017) Olagnero, G.; Mardones, F.; Passi Solar, Alvaro Rodrigo; Rosso R., Pedro Pablo; Torres, R.; Rozowski Narkunska, Samuel Jaime; Wood, J. C.; Fernandez, X.
- ItemNutritional interventions to prevent intrauterine growth retardation: Evidence from randomized controlled trials (multiple letters) [1](1999) Mardones S., Francisco; Rosso R., Pedro Pablo; Uiterwaal, D.; Marshall Rivera, Guillermo; De Onis, M.; Villar, J.; Gulmezoglu, M.
- ItemPolíticas de educación superior : reflexiones y desafíos para una reforma al sistema.(Centro de Políticas Públicas UC, 2009) Rosso R., Pedro Pablo
- ItemPregnancy outcomes and the use of two standards to assess adequacy of maternal body mass index in early gestation(2016) Mardones, F.; Rosso R., Pedro Pablo; Villarroel del Pino, Luis A.; Bacallao, J.; Domínguez de Landa, María Angélica; Passi Solar, Alvaro Rodrigo; Rojas, I.; Farías Jofré, Marcelo Enrique; Margozzini Maira, Paula
- ItemPresentación de la cuenta anual de rectoría 2009 : día del sagrado corazón 2010(Pontificia Universidad Católica de Chile., 2010) Rosso R., Pedro Pablo
- ItemProspective follow-up of chronic atrophic gastritis in a high-risk population for gastric cancer in latin america(2022) Mardones S., Francisco; Burgueño Peña, Rocca Leticia; Rosso R., Pedro Pablo; Villarroel del Pino, Luis A.; Bacallao, Jorge; Farías Jofré, Marcelo Enrique
- ItemTime course of maternal plasma volume and hormonal changes in women with preeclampsia or fetal growth restriction(LIPPINCOTT WILLIAMS & WILKINS, 2006) Salas I., Sofía; Marshall Rivera, Guillermo; Gutiérrez, Blanca L.; Rosso R., Pedro Pablo