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1.
Rev. salud pública ; 20(1): 67-72, ene.-feb. 2018. tab
Article in Spanish | LILACS | ID: biblio-962094

ABSTRACT

RESUMEN Objetivo Evaluar la eficacia de la tecnología móvil en la ganancia adecuada de peso de las gestantes estudiadas. Materiales y Métodos Estudio cuasi-experimental. Se incluyó a 117 gestantes que acudieron a establecimientos de salud de la Dirección Regional de Salud (Diresa), Callao. Se envió mensajes a 58 gestantes que conformaban el grupo experimental para mejorar sus estilos de vida y asistencia al control prenatal (CPN), mientras que 59 gestantes recibieron la educación rutinaria durante la gestación. Los mensajes se enviaron cada tres días. En la primera visita del control pre natal se evaluó el estado nutricional de las gestantes tomando como referencia el IMC pre gestacional. La ganancia de peso se obtuvo por diferencia entre el peso pre-gestacional y peso registrado durante los últimos controles. Resultados La ganancia de peso adecuada fue 27,6% de gestantes intervenidas y 25,4% en las no intervenidas. El 79,3% de gestantes tuvieron seis o más CPN en el grupo intervenido y 54,2% en las no intervenidas. La ganancia de peso fue excesiva en 5,1% en las gestantes no intervenidas y solo 1,7% en las intervenidas. El mayor porcentaje de gestantes con ganancia de peso adecuada (32,0%) se observó en las gestantes intervenidas con sobrepeso pre gestacional. Conclusiones No hubo diferencia estadística al usar la tecnología móvil para la adecuada ganancia de peso entre los grupos de estudio. Existió mayor cumplimiento de asistencia al CPN en el grupo de gestantes intervenidas comparado con el no intervenido (p<0,05).(AU)


ABSTRACT Objective To evaluate the effectiveness of mobile technology in the appropriate weight gain of pregnant women. Materials and Methods A quasi-experimental study. The sample included 117 pregnant women attending health facilities at la Dirección Regional de Salud (Diresa), Callao. Messages were sent to 58 pregnant women who formed the experimental group to improve their lifestyles and assistance to prenatal care (APC), while 59 pregnant women received routine education provided for pregnants. Messages were sent every three days. The nutritional status of the pregnant women was evaluated using the pre gestational BMI at the first visit of the APC. The weight gain was obtained from the difference between pre-gestational weight and weight recorded during the last controls. Results The adequate weight gain was 27.6% of intervened pregnancies and 25.4% in the non-intervened. The 79.3% pregnant had six or more NPC in the group intervened and 54.2% in the non-intervened. The weight gain was excessive in 5.1% in the non-intervened pregnant and 1.7% in the intervened. The highest percentage of pregnant women with adequate weight gain (32.0%) was observed in the intervened pregnancies with pre-gestacional overwhegith. Conclusions There was no statistic difference in the use of mobile technology for a proper weight gain between both study groups. There were greater fulfillment of APC in intervened pregnancies compared to the non-intervened (p<0.05).(AU)


Subject(s)
Humans , Female , Pregnancy , Prenatal Care/methods , Obesity, Maternal/epidemiology , Peru/epidemiology , Cell Phone/instrumentation , Non-Randomized Controlled Trials as Topic
2.
Rev. cuba. endocrinol ; 12(3): 168-177, sept.-dic. 2001. tab
Article in Spanish | LILACS, CUMED | ID: lil-329874

ABSTRACT

En las investigaciones biomédicas se precisa la utilización de los animales de laboratorio como biomodelos naturales o inducidos de diversas enfermedades o procesos morbosos, los cuales ayudan al estudio y la comprensión de la patogenia, fisiología y posibilidades de tratamiento de las mismas. En la endocrinología se utilizan para estudiar estos aspectos de las enfermedades de origen autoinmune o no relacionadas con este sistema, como la diabetes mellitus, disfunciones tiroideas, trastornos de la reproducción y del metabolismo, entre otras, además de constituir un arma importante para investigar las interrelaciones hormonales que ocurren en los individuos normales o enfermos. Se realizó una amplia revisión bibliográfica sobre el tema para brindar una información detallada sobre los modelos animales de diabetes mellitus tipo 1 utilizados en las investigaciones biomédicas, que comprendiera los que se obtienen de forma espontánea e inducida, así como la influencia sobre ellos, de los factores ambientales. Se concluyó que resulta de vital importancia para el logro de las investigaciones básicas in vivo mantener un control estricto de las condiciones ambientales en las que desarrollamos nuestras investigaciones y ampliar nuestros conocimientos sobre el tema(AU)


In biomedical research, it is necessary the use of laboratory animals as natural or induced models of different diseases or morbid processes that make easy the study and understanding of the pathogeny, physiology and possibilities of treatment of them. In endocrinology, they are utilized to study the aspects of the diseases of autoimmune origin or of those not related to this system, such as diabetes mellitus, thyroid dysfunctions, reproduction and metabolism disorders, among others. Besides, they are also an important tool to investigate the hormonal interrelations occurring in normal or sick individuals. A wide bibliographic review on this topic was made to give a detailed information about the animal models of type I diabetes mellitus used in biomedical research, including those obtained in a spontaneous or induced way, as well as the influence of the environmental factors on them. It was concluded that it is very important for the achievement of the basic research in vivo to maintain a strict control of the environmental conditions under which we develop our investigations and to improve our knowledge on this topic(AU)


Subject(s)
Animals , Research , Thyroid Gland , Diabetes Mellitus, Type 1 , Animals, Laboratory , Biomedical Research
3.
Rev. cuba. endocrinol ; 11(2): 78-89, mayo-ago. 2000. tab
Article in Spanish | LILACS, CUMED | ID: lil-295683

ABSTRACT

Se utilizaron diferentes técnicas para determinar las características bioquímicas de las preparaciones de prolactina (Prl) de origen hipofisario con preparados que se utilizan en centros de investigaciones para el desarrollo de sistemas in vivo e in vitro, bioanálisis, radioinmunoanálisis y análisis inmunoenzimáticos. Los preparados se analizaron por electroforesis bajo condiciones reductoras (SDS-PAGE), electrotransferencia e inmunodetección, enfoque isoeléctrico, cromatografía líquida de alta presión (HPLC), y capacidad de unión a receptores microsomales (RRA). Se encontró que en las Prl (s) porcina (pPrl), ovina (oPrl) y humana (hPrl) existen proporciones significativas de la forma glucosilada (30-40 porciento), no así en la Prl bovina (bPrl) y en la de rata (rPrl). Se comprobó que es posible detectar impurezas o mezclas de las diferentes formas moleculares de la Prl presentes en estos preparados hipofisarios utilizando HPLC. El análisis por enfoque isoeléctrico de las Prl (s) hipofisarias de diferentes especies reveló que en la bPrl existen 4 isoformas de carga eléctrica, la oPrl y la hPrl están compuestas por 3 isoformas mientras que la rPrl y la pPrl presentan 1 y 2 isoformas, respectivamente. Aún se desconoce cuál podría ser el significado fisiológico de las isoformas de carga eléctrica en la Prl hipofisaria de diferentes especies. Según los resultados obtenidos a partir de las curvas de desplazamiento y de las gráficas de Scatchard, se encontró que existen diferencias entre las constantes de disociación (Kd) y la capacidad de unión de las prolactinas a los receptores microsomales. Finalmente es necesario conocer con mayor exactitud las propiedades bioquímicas, inmunológicas y biológicas de los preparados de las prolactinas que son utilizadas en diferentes estudios tanto in vivo como in vitro, porque en esas residen las funciones biológicas de la hormona. Se confirmó y se amplió la heterogeneidad estructural de la Prl en diferentes especies de mamíferos, que dan lugar a la existencia de diferentes variantes moleculares de la hormona y a la diversidad de funciones que ejerce. Se comprobó la necesidad de desarrollar nuevos métodos para el estudio del significado biológico de la heterogeneidad estructural de la Prl y de obtener las diferentes variantes moleculares de la Prl con un alto grado de pureza, que permitan establecer nuevos métodos cuantitativos, útiles para ser aplicados en estudios clínicos y bioquímicos(AU)


Different techniques were used to determine the biochemical characteristics of the Prolactin (Prl) preparations of hypophyseal origin with preparations that are used in research centers for the development of in vitro and in vivo systems, bioanalyses, radioimmunoanalyses and immunoenzimatic analyses. The preparations were analyzed by electrophoresis under reducing conditions (SDS-PAGE), electrotrasnference and immunodetection, isoelectric focussing, high pressure liquid chromatography (HPLC) and binding capacity to microsomal receptors (RRA). It was observed that in the porcine Prl (pPrl), ovine Prl (oPrl) and human Prl (hPrl) there are significant proportions of the glycosilated form (30-40%) that are not found in the bovine Prl (bPrl) and in the rat Prl (rPrl). It was proved that it is possible to detect impurities or mixtures of the different molecular forms of Prl that appear in these hypophyseal preparations by using HPLC. The analysis by isoelectric focussing of the hypophyseal prolactins of different species revealed that in the bPrl there are 4 isoforms of electric charge, that the oPrl and the hPrl are composed of 3 isoforms, whereas the rPrl and the pPrl have 1 and 2 isoforms, respectively. The physiological meaning of the isoforms of electric charge in the hypophyseal Prl of different species is still unknown. According to the results obtained from the displacement curves and from the Scatchard graphs, it was found that there are differences among the dissociation constants (Kd) and the binding capacity of prolactins to microsomal receptors. Finally, it is necessary to know with more precision the biochemical, immunological and biological properties of the preparations of prolactins that are used in different studies, both in vivo and in vitro, since that's where the biological functions of the hormone are. The structural heterogeneity of the Prl was confirmed and widened in different species of mammals giving rise to the existence of different molecular variants of the hormone and to the diversity of functions it performs. The need to develop new methods for studying the biological meaning of the structural heterogeneity of Prl and to obtain different molecular variants of Prl with a degree of purity that allow to establish new quantitative methods useful to be applied in clinical and biochemical studies was proved. The adequate understanding of the structural modifications of prolactins and of their biological consequences will make possible to establish the synthesis and secretion mechanisms of this hormone, including its multifunctional properties(AU)


Subject(s)
Animals , Prolactin/chemistry , Chromatography, High Pressure Liquid/methods , Electrophoresis/methods , Isoelectric Focusing/methods , In Vitro Techniques
4.
La Habana; s.n; 1997. 11 p. tab, graf.
Non-conventional in English | LILACS | ID: lil-224789

ABSTRACT

Wistar rats were lesioned into the nigrostriatal pathway with 6-OHDA. The D-amphetamine-induced circling behavior test was performed to evaluate lesion efficiency. Animals that showed more than 620 turns/90 min were named totally lesioned animals (TLA). The group of rats that performed less than 620 turns/90 min was named partially lesioned animals (PLA). The contents of DA and its catabolites in the striata of these groups, and in the same tissue of the untreated animals, were mearured. Moreover, the striatal gluthatione-S-transferase (GST) specific activity for all groups was tested, and the kinetics parameters for GST ppurified from the whole brain were evaluated from other three similar groups. The striatal DA depletion in TLA was greater than in PLA. Striatal GST activity showed a significant bilateral increase in PLA, whereas TLA exhibited only an ipsilateral augment. There were also differences between groups about the kinetic parameters of the purified brain enzyme. The possible role of GST on the interindividual lesion response difference was analyzed


Subject(s)
Animals , Dopamine , Glutathione Transferase , Oxidopamine , Rats , Disease Models, Animal
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