Choline intake improves memory and attention-holding capacity

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64817 An experimental study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity. The study, conducted by scientists at the University of Granada (Spain) Simón Bolívar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them. Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens. In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring. Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets. When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group. Long-term memory This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it. Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood. In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake. They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus. The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning. However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning. The study has been undertaken by University of Granada Department of Experimental Psychology researchers Isabel De Brugada-Sauras and Hayarelis Moreno-Gudiño (also on the research staff of Simón Bolívar University together with Diamela Carias); Milagros Gallo-Torre, researcher in the University of Granada Department of Psychobiology and Director of the «Federico Olóriz» University Research Institute for Neuroscience; and Geoffrey Hall, of the Department of Psychology of the University of York. Their study has recently given rise to publications in Nutritional Neuroscience and Behavioural Brain Research. An illustrative video, produced by UGRdivulga and narrated in Spanish, is available at: http://youtu.be/un1u_ZoTYv8
Read more at http://scienceblog.com/64538/choline-intake-improves-memory-and-attention-holding-capacity/#D6EgMPywQPBu61pz.99
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Choline intake improves memory and attention-holding capacity

Escrito por

64817 An experimental study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity. The study, conducted by scientists at the University of Granada (Spain) Simón Bolívar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them.

Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens.

In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring. Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets. When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group.

Long-term memory

This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it. Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood.

In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake. They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus. The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning. However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning.

Source: University of Granada

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Choline intake improves memory and attention-holding capacity

Escrito por

64817 An experimental study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity. The study, conducted by scientists at the University of Granada (Spain) Simón Bolívar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them.

Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens.

In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring. Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets. When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group.

Long-term memory

This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it. Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood.

In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake. They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus. The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning. However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning.

Source: University of Granada

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Vitamin B: Choline Intake Improves Memory and Attention-Holding Capacity, Experts Say

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64817 An experimental study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity. The study, conducted by scientists at the University of Granada (Spain) Simón Bolívar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them.

Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens.
In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring. Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets. When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group.
Long-term memory
This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it. Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood.
In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake. They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus. The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning. However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning.
The study has been undertaken by University of Granada Department of Experimental Psychology researchers Isabel De Brugada-Sauras and Hayarelis Moreno-Gudiño (also on the research staff of Simón Bolívar University together with Diamela Carias); Milagros Gallo-Torre, researcher in the University of Granada Department of Psychobiology and Director of the «Federico Olóriz» University Research Institute for Neuroscience; and Geoffrey Hall, of the Department of Psychology of the University of York. Their study has recently given rise to publications in Nutritional Neuroscience and Behavioural Brain Research.

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Vitamin B: Choline Intake Improves Memory and Attention-Holding Capacity, Experts Say

Escrito por

64817 An experimental study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity. The study, conducted by scientists at the University of Granada (Spain) Simón Bolívar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them.

Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens.
In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring. Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets. When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group.
Long-term memory
This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it. Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood.
In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake. They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus. The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning. However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning.
The study has been undertaken by University of Granada Department of Experimental Psychology researchers Isabel De Brugada-Sauras and Hayarelis Moreno-Gudiño (also on the research staff of Simón Bolívar University together with Diamela Carias); Milagros Gallo-Torre, researcher in the University of Granada Department of Psychobiology and Director of the «Federico Olóriz» University Research Institute for Neuroscience; and Geoffrey Hall, of the Department of Psychology of the University of York. Their study has recently given rise to publications in Nutritional Neuroscience and Behavioural Brain Research.

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Paco de Lucía cierra la programación central del Festival de Música y Danza de Granada

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El guitarrista Paco de Lucía cerrará mañana el ciclo de flamenco y la programación central del Festival Internacional de Música y Danza de Granada con su último álbum «En vivo».

En el espectáculo, que ha agotado toda las entradas, De Lucía estará acompañado por Alain Pérez al bajo, Antonio Serrano Dalmas en la armónica, Antonio Sánchez Palomo en la segunda guitarra, «El Piraña» en la percusión y el bailaor Antonio Fernández Montoya «Farru», con iluminación de Keith Yetton.
Los cantaores son el motrileño David de Jacoba y el cordobés Antonio Flores Cortés ‘Rubio de Pruna’, ha informado el Festival.
Paco de Lucía lleva 55 años en activo y en lo más alto del flamenco desde su primera actuación en una emisora de radio en Algeciras (Cádiz), de donde es natural, con sólo once años.
Sus galardones son casi tantos como los discos publicados en esta prolífica trayectoria.
Entre otros, ha recibido la Medalla de Oro al Mérito a las Bellas Artes, el Premio Príncipe de Asturias de las Bellas Artes o el Doctor Honoris Causa de la Universidad de Cádiz, mientras que es el primer artista español en obtener el Berklee College of Music.
A su lado han aprendido y trabajado algunos de los artistas más relevantes del género, como el jazzista Jorge Pardo, Tomatito o Niño Josele.
Pero fue su colaboración con el mítico cantaor Camarón de la Isla, en los años setenta, la que marcó un antes y un después en la historia del flamenco y de la música.
El disco «En vivo», su entrega más reciente, fue publicada en noviembre de 2011 y reúne piezas de los mejores conciertos ofrecidos en su gira de 2010 por España.
Incluye bulerías, mineras, tangos o seguiriyas que mañana sonarán en el Teatro del Generalife.
«Una grabación en vivo es un lujo, puedes sentir la respiración de los músicos que están a tu lado, es espontáneo, festivo, te lo pasas bien. A veces hay fallos, pero te encuentras en un estado de excitación en el que la adrenalina te ayuda a encontrar soluciones, casi siempre sorpresivas y que a veces superan la composición original. Lo que sucede es real», explica el artista en su web.
El Fex, la extensión del Festival, ofrecerá mañana un concierto de la Orquesta de Alumnos del Curso de interpretación musical orquestal, camerística y solista en colaboración con la Orquesta de la Universidad de Granada.

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Paco de Lucía cierra la programación central del Festival de Música y Danza de Granada

Escrito por

El guitarrista Paco de Lucía cerrará mañana el ciclo de flamenco y la programación central del Festival Internacional de Música y Danza de Granada con su último álbum «En vivo».

En el espectáculo, que ha agotado toda las entradas, De Lucía estará acompañado por Alain Pérez al bajo, Antonio Serrano Dalmas en la armónica, Antonio Sánchez Palomo en la segunda guitarra, «El Piraña» en la percusión y el bailaor Antonio Fernández Montoya «Farru», con iluminación de Keith Yetton.
Los cantaores son el motrileño David de Jacoba y el cordobés Antonio Flores Cortés ‘Rubio de Pruna’, ha informado el Festival.
Paco de Lucía lleva 55 años en activo y en lo más alto del flamenco desde su primera actuación en una emisora de radio en Algeciras (Cádiz), de donde es natural, con sólo once años.
Sus galardones son casi tantos como los discos publicados en esta prolífica trayectoria.
Entre otros, ha recibido la Medalla de Oro al Mérito a las Bellas Artes, el Premio Príncipe de Asturias de las Bellas Artes o el Doctor Honoris Causa de la Universidad de Cádiz, mientras que es el primer artista español en obtener el Berklee College of Music.
A su lado han aprendido y trabajado algunos de los artistas más relevantes del género, como el jazzista Jorge Pardo, Tomatito o Niño Josele.
Pero fue su colaboración con el mítico cantaor Camarón de la Isla, en los años setenta, la que marcó un antes y un después en la historia del flamenco y de la música.
El disco «En vivo», su entrega más reciente, fue publicada en noviembre de 2011 y reúne piezas de los mejores conciertos ofrecidos en su gira de 2010 por España.
Incluye bulerías, mineras, tangos o seguiriyas que mañana sonarán en el Teatro del Generalife.
«Una grabación en vivo es un lujo, puedes sentir la respiración de los músicos que están a tu lado, es espontáneo, festivo, te lo pasas bien. A veces hay fallos, pero te encuentras en un estado de excitación en el que la adrenalina te ayuda a encontrar soluciones, casi siempre sorpresivas y que a veces superan la composición original. Lo que sucede es real», explica el artista en su web.
El Fex, la extensión del Festival, ofrecerá mañana un concierto de la Orquesta de Alumnos del Curso de interpretación musical orquestal, camerística y solista en colaboración con la Orquesta de la Universidad de Granada.

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Choline intake improves memory and attention-holding capacity

Escrito por

64817 An experimental study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity. The study, conducted by scientists at the University of Granada (Spain) Simón Bolívar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them.
Ads by Googl 

Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens.
In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring. Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets. When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group.
Long-term memory
This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it. Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood.

In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake. They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus. The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning. However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning.
Explore further: Choline supplementation during pregnancy presents a new approach to schizophrenia prevention
More information: Their study has recently given rise to publications in Nutritional Neuroscience and Behavioural Brain Research.
Journal reference: Behavioural Brain Research
Provided by University of Granada

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Choline intake improves memory and attention-holding capacity

Escrito por

64817 An experimental study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity. The study, conducted by scientists at the University of Granada (Spain) Simón Bolívar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them.
Ads by Googl 

Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens.
In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring. Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets. When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group.
Long-term memory
This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it. Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood.

In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake. They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus. The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning. However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning.
Explore further: Choline supplementation during pregnancy presents a new approach to schizophrenia prevention
More information: Their study has recently given rise to publications in Nutritional Neuroscience and Behavioural Brain Research.
Journal reference: Behavioural Brain Research
Provided by University of Granada

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Un estudio sobre siniestralidad laboral en Ceuta es la base para otro en EEUU

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Un estudio realizado en la Ciudad Autónoma de Ceuta sobre los accidentes de trabajo y su relación con la cultura preventiva ha servido de base para la realización de otro en Estados Unidos, donde se ha analizado la evolución de la siniestralidad en dicho país.
El profesor de la Universidad de Granada en Ceuta José Aureliano Martín Segura presentará el próximo 5 de noviembre en Boston las conclusiones de su trabajo «Causas estructurales de los accidentes de trabajo: Un análisis comparativo de España y EEUU», según ha informado a Efe el autor.
Este estudio tiene su origen en una ponencia desarrollada por los miembros de esta universidad y también del Programa de Doctorado de Ceuta, José Aureliano Martín Segura y José Luis Navarro, y de un alumno del curso de Técnicas cuantitativas de investigación aplicadas a las Ciencias Sociales, Antonio Álvarez.
Esta ponencia fue expuesta en noviembre de 2011 en el marco del congreso de la American Public Health Association (APHA), en Washington y el mismo agradó a Paul Landsbergis, profesor asociado en el Departamento de Ciencias de la Salud Ambiental y Ocupacional, interesándose por este.
Los contactos han permitido hacer extensivo el estudio a EEUU, por lo que se solicitó a la Universidad de Nueva York que Martín Segura pudiera ir un mes entero a recabar datos de accidentes de los 50 estados.
La Universidad aceptó y el profesor ceutí ha estado un mes en New York y una vez recabados los datos ha empleado el mismo modelo y parámetro para los 50 estados.
La conclusión a la que ha llegado es que la precariedad laboral, el contrato precario y la edad del trabajador -de 16 a 19 años- son causas de siniestralidad laboral.
Una de las posibles causas de accidente es el pluriempleo, ya que en EEUU hay muchas personas que para poder llegar a final de mes desempeñan varios trabajos porque los salarios son muy bajos y éstos tienen más riesgos de sufrir accidentes.
Las gráficas que resultan de este trabajo indican que mientras la economía en EEUU crece, los accidentes de trabajo bajan, un fenómeno que también se da en España debido a que cuando la economía sube, hay más trabajadores por lo que sería más probable que se produjeran más accidentes de trabajo.
El trabajo indica que esto hace pensar que la cultura preventiva entre los empresarios asciende y que las medidas que se toman por las administraciones están surtiendo efecto.
Otra de las conclusiones a las que se ha llegado con este estudio es que la tasa de desempleo en el último año tuvo una asociación positiva con la tasa de lesiones y enfermedades en el año en curso, lo que indica que cuando crece el paro también lo hace el nerviosismo de quienes están trabajando y temen perder su puesto, una situación que aumenta las posibilidades de sufrir un accidente.
Estos estudios se han realizado con datos del periodo comprendido entre 1992 y 2010. EFE
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Un estudio sobre siniestralidad laboral en Ceuta es la base para otro en EEUU

Escrito por

Un estudio realizado en la Ciudad Autónoma de Ceuta sobre los accidentes de trabajo y su relación con la cultura preventiva ha servido de base para la realización de otro en Estados Unidos, donde se ha analizado la evolución de la siniestralidad en dicho país.
El profesor de la Universidad de Granada en Ceuta José Aureliano Martín Segura presentará el próximo 5 de noviembre en Boston las conclusiones de su trabajo «Causas estructurales de los accidentes de trabajo: Un análisis comparativo de España y EEUU», según ha informado a Efe el autor.
Este estudio tiene su origen en una ponencia desarrollada por los miembros de esta universidad y también del Programa de Doctorado de Ceuta, José Aureliano Martín Segura y José Luis Navarro, y de un alumno del curso de Técnicas cuantitativas de investigación aplicadas a las Ciencias Sociales, Antonio Álvarez.
Esta ponencia fue expuesta en noviembre de 2011 en el marco del congreso de la American Public Health Association (APHA), en Washington y el mismo agradó a Paul Landsbergis, profesor asociado en el Departamento de Ciencias de la Salud Ambiental y Ocupacional, interesándose por este.
Los contactos han permitido hacer extensivo el estudio a EEUU, por lo que se solicitó a la Universidad de Nueva York que Martín Segura pudiera ir un mes entero a recabar datos de accidentes de los 50 estados.
La Universidad aceptó y el profesor ceutí ha estado un mes en New York y una vez recabados los datos ha empleado el mismo modelo y parámetro para los 50 estados.
La conclusión a la que ha llegado es que la precariedad laboral, el contrato precario y la edad del trabajador -de 16 a 19 años- son causas de siniestralidad laboral.
Una de las posibles causas de accidente es el pluriempleo, ya que en EEUU hay muchas personas que para poder llegar a final de mes desempeñan varios trabajos porque los salarios son muy bajos y éstos tienen más riesgos de sufrir accidentes.
Las gráficas que resultan de este trabajo indican que mientras la economía en EEUU crece, los accidentes de trabajo bajan, un fenómeno que también se da en España debido a que cuando la economía sube, hay más trabajadores por lo que sería más probable que se produjeran más accidentes de trabajo.
El trabajo indica que esto hace pensar que la cultura preventiva entre los empresarios asciende y que las medidas que se toman por las administraciones están surtiendo efecto.
Otra de las conclusiones a las que se ha llegado con este estudio es que la tasa de desempleo en el último año tuvo una asociación positiva con la tasa de lesiones y enfermedades en el año en curso, lo que indica que cuando crece el paro también lo hace el nerviosismo de quienes están trabajando y temen perder su puesto, una situación que aumenta las posibilidades de sufrir un accidente.
Estos estudios se han realizado con datos del periodo comprendido entre 1992 y 2010. EFE
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Eating beef liver can improve long-term memory

Escrito por

64817 A new study in rats has shown that consuming choline, a vitamin B group nutrient found in foodstuffs like eggs and chicken or beef liver, soy and wheat germ, helps improve long-term memory and attention-holding capacity.

The study, conducted by scientists at the University of Granada (Spain) Simon Bolivar University, (Venezuela) and the University of York (United Kingdom), has revealed that choline is directly involved in attention and memory processes and helps modulate them.

Researchers studied the effects of dietary supplements of choline in rats in two experiments aimed at analysing the influence of vitamin B intake on memory and attention processes during gestation and in adult specimens.

In the first experiment, scientists administered choline to rats during the third term of gestation in order to determine the effect of prenatal choline on the memory processes of their offspring.

Three groups of pregnant rats were fed choline-rich, standard or choline-deficient diets.

When their offspring had reached adult age, a sample of 30 was selected: 10 were female offspring of dams fed a choline-supplement, 10 had followed a choline-deficient diet and the other 10, a standard diet, acting as a control group.

This sample of adult offspring underwent an experiment to measure their memory retention: 24 hours after being shown an object all the offspring (whether in the choline-supplement group or not) remembered it and it was familiar to them.

However, after 48 hours, the rats of dams fed a prenatal choline-rich diet recognized the object better than those in the standard diet group, while the choline-deficient group could not recognize it.

Thus, the scientists concluded that prenatal choline intake improves long-term memory in the resulting offspring once they reach adulthood.

In the second experiment, the researchers measured changes in attention that occurred in adult rats fed a choline supplement for 12 weeks, versus those with no choline intake.

They found that the rats which had ingested choline maintained better attention that the others when presented with a familiar stimulus.

The control group, fed a standard diet, showed the normal learning delay when this familiar stimulus acquired a new meaning.

However, the choline-rich intake rats showed a fall in attention to the familiar stimulus, rapidly learning its new meaning.

The study is published in the journal Nutritional Neuroscience and Behavioural Brain Research. (ANI)

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