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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Epidemiología y reconstrucción genealógica de la enfermedad de Huntington en el Instituto Especializado de Ciencias Neurológicas "Oscar Trelles Montes" 1974-2003

Mori Quispe, Nicanor January 2004 (has links)
Objetivos: Determinar las características epidemiológicas y genealógicas de los pacientes con diagnóstico de Enfermedad de Huntington (EH) que han acudido al IECN en el periodo 1974 -2003 Población y métodos: Estudio descriptivo retrospectivo realizado en el Instituto de Ciencias Neurológicas (IECN) “Oscar Trelles Montes” de todos los pacientes con diagnóstico de EH que acudieron al IECN en el periodo de 1974 – 2003. Resultados: Se identificaron un total de 68 pacientes diagnosticados de EH, de los cuales, 42 (61.76%) eran mujeres y 26 (38.24%) eran varones. Del total de pacientes con EH, 31 (45.58%) había nacido en Lima, 18 (54.5%) de ellos eran naturales de Cañete, constituyéndose la zona con mayor cantidad de pacientes. La edad de inicio de los síntomas fue 39.54 años, observándose un inicio más precoz de la enfermedad en aquellos pacientes tenían un patrón de transmisión paterna (36 años), en comparación de aquellos que tenían transmisión materna (42 años), siendo esta diferencia significativa (p = 0.04, IC: 95%). Se observa que la mayor cantidad de pacientes se encuentra en el intervalo comprendido entre los 20 y 50 años, quienes corresponden a la EH de inicio en la adultez (74.6%). Los síntomas de inicio de la enfermedad fueron: Movimientos involuntarios de tipo coreico 68 (100%), alteraciones de la marcha 30 (44.1%), e irritabilidad en 23 (33.8%) pacientes. Se reconstruyeron 52 árboles genealógicos representando a 60 pacientes tanto de manera ascendente como descendente, agrupando 1768 individuos. Se reportaron en las historias clínicas 241 casos de EH, de los cuales 118 (49%) eran varones y 123 (51%) mujeres. El árbol genealógico con mayor número de individuos fue el correspondiente al caso número 14 con 186 individuos, reportándose también en el mismo árbol EH en gemelos dicigóticos. No se pudo llegar al objetivo de encontrar un ancestro común que haya introducido la EH en nuestro país. Conclusiones: Cañete constituye una de las zonas con mayor cantidad de casos de EH en nuestro país. La mayoría de los pacientes comienza a presentar los primeros síntomas de la enfermedad en la cuarta década de la vida, en forma de movimientos coreicos y alteraciones del comportamiento en su mayoría. Esta enfermedad se presenta en plena edad productiva, cuando muchos de ellos ya han presentado descendencia, haciéndose difícil el consejo genético, mas aún si las personas no tienen acceso al diagnóstico genético de esta enfermedad, la cual puede informar con anticipación la posibilidad o no de desarrollo de la enfermedad.
2

Epidemiología y reconstrucción genealógica de la enfermedad de Huntington en el Instituto Especializado de Ciencias Neurológicas "Oscar Trelles Montes" 1974-2003

Mori Quispe, Nicanor January 2004 (has links)
Objetivos: Determinar las características epidemiológicas y genealógicas de los pacientes con diagnóstico de Enfermedad de Huntington (EH) que han acudido al IECN en el periodo 1974 -2003 Población y métodos: Estudio descriptivo retrospectivo realizado en el Instituto de Ciencias Neurológicas (IECN) “Oscar Trelles Montes” de todos los pacientes con diagnóstico de EH que acudieron al IECN en el periodo de 1974 – 2003. Resultados: Se identificaron un total de 68 pacientes diagnosticados de EH, de los cuales, 42 (61.76%) eran mujeres y 26 (38.24%) eran varones. Del total de pacientes con EH, 31 (45.58%) había nacido en Lima, 18 (54.5%) de ellos eran naturales de Cañete, constituyéndose la zona con mayor cantidad de pacientes. La edad de inicio de los síntomas fue 39.54 años, observándose un inicio más precoz de la enfermedad en aquellos pacientes tenían un patrón de transmisión paterna (36 años), en comparación de aquellos que tenían transmisión materna (42 años), siendo esta diferencia significativa (p = 0.04, IC: 95%). Se observa que la mayor cantidad de pacientes se encuentra en el intervalo comprendido entre los 20 y 50 años, quienes corresponden a la EH de inicio en la adultez (74.6%). Los síntomas de inicio de la enfermedad fueron: Movimientos involuntarios de tipo coreico 68 (100%), alteraciones de la marcha 30 (44.1%), e irritabilidad en 23 (33.8%) pacientes. Se reconstruyeron 52 árboles genealógicos representando a 60 pacientes tanto de manera ascendente como descendente, agrupando 1768 individuos. Se reportaron en las historias clínicas 241 casos de EH, de los cuales 118 (49%) eran varones y 123 (51%) mujeres. El árbol genealógico con mayor número de individuos fue el correspondiente al caso número 14 con 186 individuos, reportándose también en el mismo árbol EH en gemelos dicigóticos. No se pudo llegar al objetivo de encontrar un ancestro común que haya introducido la EH en nuestro país. Conclusiones: Cañete constituye una de las zonas con mayor cantidad de casos de EH en nuestro país. La mayoría de los pacientes comienza a presentar los primeros síntomas de la enfermedad en la cuarta década de la vida, en forma de movimientos coreicos y alteraciones del comportamiento en su mayoría. Esta enfermedad se presenta en plena edad productiva, cuando muchos de ellos ya han presentado descendencia, haciéndose difícil el consejo genético, mas aún si las personas no tienen acceso al diagnóstico genético de esta enfermedad, la cual puede informar con anticipación la posibilidad o no de desarrollo de la enfermedad.
3

The evolution of cognitive, motor and behavioural characteristics in 'presymptomatic' carriers for huntington's disease : a prospective study /

Witjes-Ané, Marie-Noëlle Wilhelmina, January 2003 (has links)
Proefschrift--Universiteit Leiden, 2003. / Notes bibliogr. en fin de chap.
4

Perceptions of Huntington College graduates regarding intercollegiate participation

Zezula, Patricia Ann January 1981 (has links)
The purpose of the study was to investigate and report the relationship of intercollegiate sport participation to personal and professional benefits as perceived by selected graduates of Huntington College.The population for the study consisted of all four year graduates from 1972 through 1979 who received at least one varsity award. The population was divided by sex and academic college major. Thirteen tables were constructed to report data pertaining to:1. aesthetic values2. social skills and relationships with others 3. funding of programs and program encouragement 4. professional benefits 5. effect upon personal conduct and development 6. sports participation.The Galloway Inventory was adapted and used as a questionnaire. The data were obtained from one hundred-sixty questionnaires or a 78 percent rate of return.Some of the findings of the study were:1. Intercollegiate sport participation is considered more important than informal competition.2. More physical education majors are active in team sports activities than the non physical education majors.3. One hundred percent of the male and female physical education majors disagreed expenditure of funds for a sports program is unnecessary and wasteful.4. More men, majors and non majors, participate regularly in individual sports than do female majors or non majors.Based on the data some of the conclusions were:1. Male and female physical education majors believe intercollegiate sport participation contributes to professional development.2. Male and female non physical education major athletes do not agree intercollegiate sport participation contributes to providing skills necessary for vocational association.3. Male and female physical education majors believe intercollegiate sport participation contributes to personal development.4. Male and female non physical education athletes believe intercollegiate sport participation contributes to personal development.The following recommendations are based on the findings of the study:1. A study should be conducted to determine the opinion of athletes participating in individual sports versus team sports.2. A study should be conducted to determine if differences of opinion exist among athletes receiving a different number of awards.3. A study should be undertaken to determine the perceptions of non athletes toward intercollegiate sport participation.
5

Modelling and treating Huntington's disease: generation of high-capacity adenovirus vectors to express normal and mutant huntingtin and to block huntingtin expression by short hairpin interference RNA

Huang, Bin, January 2008 (has links)
Ulm, Univ., Diss., 2008.
6

Rôle de la huntingtine dans le muscle / Physiopathological role of huntingtine in muscle

Poreau, Brice 11 October 2017 (has links)
La maladie de Huntington (HD) est une pathologie génétique multisystémique neurodégénérative rare caractérisée par des atteintes motrices, cognitives et psychiatriques. Elle est due à une augmentation de la répétition de triplet CAG dans l'exon 1 du gène HTT, dont la taille normale est de 6 à 35 répétitions. Cette expansion de triplets conduit à la présence d'une répétition de glutamine de taille anormale dans l'extrémité N-terminale de la protéine huntingtine (HTT). Les conséquences de la mutation sont d’une part la diminution de l’expression de la protéine non mutée et d’autre part l’expression d’une protéine mutée. L’une des fonctions de la HTT est le transport intracellulaire de vésicules le long des microtubules dans les neurones. Par ailleurs, une phénocopie : Huntington disease like 2 maladie ayant un phénotype similaire, est due à une perte de fonction de la junctophilin-3 ayant pour rôle l’établissement de points de contact entre la membrane plasmique et le reticulum endoplasmique au niveau neuronal. Les présents travaux visent à découvrir les mécanismes au sein desquels la HTT est impliquée dans un modèle différent de la cellule neuronale : la cellule musculaire. En effet, les points de contact nommées triades sont le cœur du couplage excitation-contraction. Les travaux ont permis de montrer, après avoir créé des modèles cellulaires et in vivo avec baisse d’expression de la protéine, un défaut de la fonction musculaire au niveau cellulaire comme au niveau physiologique. Les relâchements calciques sont altérés. La force est diminuée. De plus, ces altérations de fonctionnement sont corrélées à une baisse d’expression des principaux récepteurs de la triade. Enfin, une fraction exogène de la partie N-terminale de la protéine non mutée restaure les défauts calciques observés. La huntingtine a donc un rôle prépondérant dans la fonction princeps du muscle : la contraction. / Huntington Disease (HD) is a rare multisystemic neurodegenerative genetic disorder, which combines psychiatric, cognitive and motor alterations. It is caused by an increase in CAG repeats in the huntingtin gene, resulting in an expansion of polyglutamine stretch in the protein. This induced a loss of the huntingtin protein (HTT) normal function associated with production of a mutant protein. HTT is an ubiquitous microtubules associated protein, with numerous functions among which vesicles and organelles traffic along microtubules. Along this line, one of its functions could be the traffic of reticulum vesicles to form contact point with the plasma membrane in neurons. Moreover, a phenocopy named Huntington’s disease like 2 is due to junctophilin-3 loss of function. Junctophilin 3 is involved in contact points between endoplasmic reticulum and plasma membrane in neurons. These studies are dedicated to the validation of the hypothesis of the role of HTT in contact points between endoplasmic reticulum and plasma membrane in another model, in which contacts between reticulum and plasma membrane are of major importance: the skeletal muscle cell. Indeed, the contact points between sarcoplasmic reticulum and plasma membrane (T-Tubule), called the triads, are the basis of excitation-contraction coupling in muscle. In these studies, we develop cellular and animals models with a loss of expression of HTT in skeletal muscle specifically. Theses studies show that calcium release is altered at the cellular level and muscle force is altered at animal model level. Theses alterations are correlated with loss of expression of the main receptors of the triad. Finally, fragment of the normal protein can restore calcium defects. Theses studies put forward the role of huntingtine in skeletal muscle.
7

An analysis of the problems of articulation of ninth grade pupils of Huntington Indiana High School

Butt, Malcolm Dale January 1966 (has links)
There is no abstract available for this dissertation.
8

Avaliação de fatores genéticos como potenciais modificadores da idade de início da doença de Huntington

Souza, Aline Francielle Damo January 2013 (has links)
A doença de Huntington (DH) é o distúrbio mais comum entre as doenças neurodegenerativas de padrão de herança autossômica dominante com idade de início na vida adulta. A DH é causada por uma expansão das repetições trinucleotídicas CAG no gene HTT e caracteriza-se por movimentos involuntários, distúrbios emocionais severos e déficit cognitivo. A idade de início dos sintomas é parcialmente determinada pelo número de repetições CAG, sendo o restante influenciado por fatores genéticos e ambientais. As variantes polimórficas rs1331639 e rs6923492 no gene GRM1, rs1763505 e rs1075427 no gene SGK, rs7270898 e rs7275079 no gene TGM2, rs4523977 no gene HAP1, número de repetições CAG no alelo normal no gene HTT e nos alelos normais dos genes relacionados às ataxias espinocerebelares SCA1, SCA2, SCA3, SCA6, SCA7, SCA12, SCA17 e DRPLA foram escolhidas como genes candidatos a modificador, avaliando a associação com a idade de início dos sintomas em pacientes com DH. Na população em estudo, o número de repetições CAG no alelo mutante do gene HTT explicou ~65% da variação da idade de início. Os SNPs rs6923492 (GRM1) e rs1075427 (SGK1) não estavam em EHW na população testada (χ²=7,586; p=0,023 e χ²=7,239; p=0,027, respectivamente) e por isso foram excluídos das análises posteriores. Entre as variantes polimórficas restantes, associação moderada foi encontrada com a variação da idade de início para o genótipo AA (M441) do rs4523977 no gene HAP1 (p=0,044) e para o número de repetições CAG presentes no alelo longo do gene ATXN1 (p=0,045). Este último fator explicou 4,5% do restante da variação da idade de início não atribuída às repetições CAG de HTT. Os alelos com 24 repetições do gene ATXN3, 9 repetições do gene ATXN7 e 11 repetições do gene PPP2R2B foram mais frequentemente encontradas no grupo de pacientes quando comparado ao grupo controle (p=0,003; p<0,0001 e p<0,0001, respectivamente). O alelo com 8 repetições do gene PPP2R2B foi encontrado com uma frequência de 43% exclusivamente no grupo de pacientes. Estes alelos podem estar relacionados com a patogênese da DH. Os resultados aqui encontrados são de grande relevância para uma melhor elucidação de fatores genéticos atuantes na modulação da idade de início na DH. Tais resultados devem ser mais aprofundados e necessitam de outros estudos que corroborem os achados deste trabalho. / Huntington’s disease (HD) is the most common autosomal dominantly inherited neurodegenerative disorder with age at onset (AO) in adult life. HD is characterized by motor dysfunction, cognitive deficits, and psychiatric disturbances. An expansion of CAG trinucleotide repeats in the first exon of HTT gene is the cause of HD. Mean AO is around 40 years and is mainly determined by CAG repeats length of the mutant HTT allele. The remaining variation observed in HD patient is probably due to genetic and/or environmental factors. Polymorphic variants rs1331639 and rs6923492 in GRM1 gene, rs1763505 and rs1075427 in SGK gene, rs7270898 and rs7275079 in TGM2 gene, rs4523977 in HAP1 gene, CAG repeat length in normal allele of HTT gene and normal alleles of ATXN1, ATXN2, ATXN3, CACNA1A, ATXN7, PPP2R2B, TBP, and DRPLA gene were chosen as candidates to modifiers and a potential association to AO was analyzed in patients with HD. In our population, CAG repeat length in mutant HTT allele explained ~65% of variation in AO. A modest association with AO variation in genotype AA (M441) of rs4523977 in HAP1 gene (p=0.044), and of CAG repeat length in long allele of ATXN1 gene (p=0.045). The latter explained an additional 4.5% of the AO besides influence of CAG repeats length of mutant allele in HTT gene. Alleles with 24 repeats in ATXN3 gene, 9 repeats in ATXN7 gene, and 11 repeats in PPP2R2B genes were significantly more frequent in case group when compared to control group (p=0.003; p<0.0001 and p<0.0001, respectively). Allele with 8 repeats in PPP2R2B gene was found in a frequency of 43% in case group only. These alleles could be related with HD pathogenesis. In summary, results presented here are relevant for a better understanding of genetic factors that act in AO modulation of HD. Such results might be further explored and additional studies are required to corroborate data presented here.
9

Lipid dysfunction in Huntington Disease -"Molecular Mechanisms and Therapy"

Di Pardo, Alba Unknown Date
No description available.
10

Mammals of the Huntington Reservoir, Huntington and Wells Counties, Indiana

Reising, Johnny W. January 1974 (has links)
A survey of the Mammalian fauna of the Huntington Reservoir Area in Huntington and Wells Counties was conducted from March 1, 1973 through February 28, 1974. Collected specimens were identified to species, catalogued, and made into study skins and/or skulls prior to deposition in the Ball State University Mammal Collection. Data were recorded on body measurements, weights, reproductive condition, and skull measurements. These data were compared to previous mammal investigations in Indiana.The study revealed the presence of 27 species of mammals on or near the Huntington Reservoir Study Area. Twenty-one species were Collected and/or examined by the author, and the additional six species were collected and/or observed by Reservoir personnel.

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