ABSTRACT
The development of Eragrostis planaand Eragrostis pilosawas evaluated in a greenhouse when submitted to different soil moisture conditions. The design was completely randomized, consisting of a factorial 2x3, with the following factors: Eragrostis accessions and soil moisture levels (50% of water retention capacity (WRC), 100% of WRC and soil with water depth of 10 cm). The morphological-anatomical parameters of the plants were evaluated and the aerenchyma and adventitious roots were quantified. In addition, the photosynthetic pigments and the electron transport capacity of the photosynthetic chain were quantified, with the intention of verifying if the amount of water in the soil interferes with these parameters. Similar responses were observed between the two species when submitted to a water table environment, where there were larger aerenchymal formations in the roots and stems, as well as adventitious roots at the soil surface, inferring adaptations for survival to anaerobic stress. Negative effects on the transport of electrons and the formation of chlorophyll pigments were observed for both species when submitted to the hypoxic environment and, consequently, there was reduction of dry mass of shoot and roots, as well as reduction in the emission of tiller. It is concluded that the irrigation water management and the water blade in the rice crop are important, together with the control of invasive plants, considering the negative effects caused to the growth and development of these plants.
Subject(s)
Eragrostis , SoilABSTRACT
Tipo de estudio: retrospectivo, descriptivo. Objetivos: Determinar el grado de encefalopatía hipóxica isquémica (EHI) más común y las principales secuelas neurológicas en recién nacidos a términos (RNAT) asfícticos. Identificar factores de riesgo. Método: de 79 pacientes, que cumplieran con criterios de inclusión (37 a 42 semanas de gestación, estar vivo al egreso, pertenecer al menos al grado 1 de Sarnat y Sarnat, y estar bien diagnosticados), se revisaron historias clínicas y evoluciones neurológicas en el departamento de estadísticas y en el sistema de datos del hospital, respectivamente. Resultados: el sexo masculino fue el más afectado (65). De 20 madres en edad de riesgo de concepción materna, 85 tuvieron hijos con EHI. El 69.6 de los RNAT con EHI presentó signos tomográficos y/o ecográficos indicativos de daño cerebral por hemorragia, hipoxia, isquemia o sus combinaciones. No fue posible definir APGAR < 3 a los 5 y 10 minutos como factor de riesgo. La incidencia general de las secuelas neurológicas fue del 31.65. Conclusiones: hubo exceso de pacientes sin control, lo que subestimó la frecuencia de algunas secuelas de las que sobresalieron la parálisis cerebral, el retardo psicomotor y la epilepsia.
Type of study: Retrospective, Descriptive. Objectives: Determine the most common stage of neonatal hypoxic ischemic encephalopathy and the neurological sequelae. Identify risk factors. Method: 79 patients had inclusion criteria which were 37 to 42 weeks of gestation, alive on discharged, in stage 1 of Sarnat and Sarnat and diagnosed. Clinical histories and neurological evolutions were analyzed in the statistics department and hospital archives. Results: More common in male babies (65). From the 20 mothers in the age group at risk, 85 has children with hypoxic ischemic encephalopathy. The 69.9 newborns that had neurologic sequelae with abnormalities in ecography and CAT scan common in brain damage such as hemorrhage, hypoxia and ischemia. The general incidence of neurological sequelae was 31.65. Conclusions: Many patients were not properly followed which lead to underestimating the frequency of some neurological sequelae such as cerebal palsy, psicomotor retardation and epilepsy.
Subject(s)
Male , Female , Infant, Newborn , Hypoxia-Ischemia, Brain , Infant, Newborn , Apgar Score , Brain Ischemia , Cerebral Hemorrhage , SeizuresABSTRACT
Objective To determine levels of serum Leptin,insulin like growth factor-1(IGF-1),interleukin-6(IL-6) and tumor necrosis factor-alpha(TNF-?) in newborn infants with hypoxic-ischemic encephalopathy(HIE).Methods The asphyxiated and normal term neonates were included.The HIE group contained 45 cases and control group 20 cases.Serum Leptin,IGF-1,IL-6 and TNF-? levels were measured by a sensitive enzyme-linked immunosorbent assay.Results In asphyxiated term neonates,serum Leptin,IGF-1,IL-6 and TNF-? levels were significantly higher or lower than those in control group(all P
ABSTRACT
Objective To observe the dynamic changes of urotensionⅡ (U Ⅱ) content in plasma and bronchoalveolar lavage fluid (BALF) of rats with chronic hypoxic pulmonary hypertension and to investigate the effects of hypoxia on the synthesis and secretion of U Ⅱ and the correlation of U Ⅱ with the mean pulmonary artery pressure (mPAP) and the partial pressure of arterial oxygen (PaO 2). Methods Male Wistar rats were randomly divided into control group and hypoxic groups. Model of chronic hypoxic pulmonary hypertension was established by normal barometric and discontinuous hypoxia. mPAP and RVdp/dt max of each rat were measured using right cardiac catheterization. PaO 2 was detected by blood gas analysis. U Ⅱcontents in plasma and BALF were detected by radioimmunoassay. Results During hypoxia, mPAP, RVdp/dt max , U Ⅱ content in plasma, and BALF increased in rats (P