Academic literature on the topic 'MDX'
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Journal articles on the topic "MDX"
Banks, Glen B., Ariana C. Combs, and Jeffrey S. Chamberlain. "Sequencing protocols to genotype mdx , mdx 4cv , and mdx 5cv mice." Muscle & Nerve 42, no. 2 (May 18, 2010): 268–70. http://dx.doi.org/10.1002/mus.21700.
Full textDempsey, Fiona C., Hussein Al-Ali, Scott J. Crichton, Charlene Fabian, Chris Pepper, Bin-Zhi Qian, Xue-Feng Li, and Christopher N. Parris. "Abstract 5294: MDX-124, a novel annexin-A1 antibody, induces significant anti-cancer activity in multiple preclinical models." Cancer Research 82, no. 12_Supplement (June 15, 2022): 5294. http://dx.doi.org/10.1158/1538-7445.am2022-5294.
Full text&NA;. "MDX RA." Drugs in R & D 3, no. 2 (2002): 111–12. http://dx.doi.org/10.2165/00126839-200203020-00008.
Full textChechin, A. I., and C. D. Prokudaylo. "MDX-station." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 448, no. 1-2 (June 2000): 120–21. http://dx.doi.org/10.1016/s0168-9002(99)00735-4.
Full textHeeps, Graham. "Acura MDX." Vehicle Dynamics International 2021, no. 1 (May 2021): 4–7. http://dx.doi.org/10.12968/s1479-7747(22)50142-7.
Full textDubinin, Mikhail V., Irina B. Mikheeva, Anastasia E. Stepanova, Anastasia D. Igoshkina, Alena A. Cherepanova, Alena A. Semenova, Vyacheslav A. Sharapov, Igor I. Kireev, and Konstantin N. Belosludtsev. "Mitochondrial Transplantation Therapy Ameliorates Muscular Dystrophy in mdx Mouse Model." Biomolecules 14, no. 3 (March 7, 2024): 316. http://dx.doi.org/10.3390/biom14030316.
Full textBowo, Prasetyo, Sumarmi Sumarmi, and Sri Hardiatmi. "PENERAPAN MACAM DAN DOSIS PUPUK ORGANIK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN GANDUM (Triticum aestivum L.)." Innofarm:Jurnal Inovasi Pertanian 21, no. 1 (November 27, 2019): 1. http://dx.doi.org/10.33061/innofarm.v21i1.3311.
Full textHuang, Ping, Georgiana Cheng, Haiyan Lu, Mark Aronica, Richard M. Ransohoff, and Lan Zhou. "Impaired respiratory function in mdx and mdx/utrn +/− mice." Muscle & Nerve 43, no. 2 (January 19, 2011): 263–67. http://dx.doi.org/10.1002/mus.21848.
Full textWehmeyer, Jeffrey M. "MDX Health Digest." Medical Reference Services Quarterly 14, no. 2 (June 7, 1995): 53–60. http://dx.doi.org/10.1300/j115v14n02_05.
Full textKempa, Martin. "Multidimensional Expressions (MDX)." Datenbank-Spektrum 11, no. 2 (June 23, 2011): 123–26. http://dx.doi.org/10.1007/s13222-011-0058-2.
Full textDissertations / Theses on the topic "MDX"
Boni, Robson Aparecido dos Santos. "Regeneração nervosa periférica em camundongos mdx." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/317586.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: A distrofina é uma proteína de membrana ligada ao citoesqueleto da matriz extracelular das fibras musculares (esqueléticas e cardíacas) e nervosas. Enquanto que o papel da distrofina e os efeitos de sua ausência são bem conhecidos nos camundongos mdx (modelo animal da distrofia muscular de Duchenne), sabe-se pouco sobre sua função em nervos periféricos. A distrofina parece ser importante para o crescimento axonal, no sistema trigeminal a sua falta leva a defasciculação do sistema olfatório de camundongos. Em casos de ausência de distrofina a eliminação sináptica ocorre precocemente à expressão de moléculas pré-sinapticas é reduzida e a habilidade das células de Schwann terminais de guiarem as fibras para reinervação muscular fica comprometida. Estes achados sugerem que a distrofina possui papel essencial na regeneração nervosa periférica. Para testar esta hipótese nós examinamos a regeneração nervosa em camundongos mdx. Foram utilizados camundongos adultos machos da linhagem mdx e camundongos da linhagem C57BL/10 como controle, eles foram anestesiados com mistura de cloridrato de cetamina e cloridrato de xilazina. O nervo isquiático direito foi exposto e esmagado com uso de uma pinça fina sem ranhuras. Após o evento cirúrgico e cessado o efeito do anestésico os animais foram acondicionados em gaiolas e submetidos a regime hídrico e alimentar "ad libitum" com ciclo fotoperiódico claro/escuro de 12 horas. Destes, um grupo foi tratado com injeções intraperitoneais de L-arginina (6mg/kg) diluído em água bidestilada. Seis e 21 dias após o esmagamento os animais foram anestesiados e perfundidos por via intracardíaca com solução de Karnovsky. O nervo isquiático foi removido e imerso em fixador por 24 horas e pós-fixado em tetróxido de ósmio 1% por 2 horas. Posteriormente foram inclusos em blocos e feitos cortes semifinos que foram corados com azul de toluidina 0,5%. As secções foram analisadas em fotomicroscópio NIKON ECLIPSE E-400 (NIKON, Inc.). A densidade dos axônios com mielina (6dias) e axônios em regeneração (21 dias) foram contados. Nossos resultados demonstraram que a densidade de axônios com mielina foi significantemente maior no mdx em comparação ao C57BL/10 (312±10,2/mm2 versus 213,8±4,6/mm2). A densidade de macrófagos e células de Schwann com restos de mielina foram respectivamente 77,6±5,6/mm2 e 148±2,4/mm2. Após 21 dias, todos os parâmetros (diâmetro do axônio, espessura da bainha de mielina e número de axônios regenerados) foram significantemente menores nos camundongos mdx. Nos camundongos tratados com L-arginina os parâmetros foram semelhantes ao controle não havendo diferença estatística. Os resultados mostraram que o papel da distrofina e do óxido nítrico são de fundamental importância na regeneração nervosa periférica.
Abstract: Dystrophin is a membrane protein that links the cytoskeleton to the extracellular matrix in skeletal and cardiac muscle fibers and in the nervous system. While the role of dystrophin is well established and the effects of dystrophin loss, as it occurs in the mdx mice model of Duchenne muscular dystrophy, have been widely examined in muscle fibers, less is known about dystrophin function in peripheral nerves. It seems to be important for axonal outgrowth in the trigeminal system and the lack of dystrophin leads to nerve defasciculation in the mouse olfactory system. In the absence of dystrophin, synapse elimination occurs earlier, expression of presynaptic molecules is reduced and the ability of terminal Schwann cells to guide reinnervation of muscle fibers is impaired. These findings suggest a potential role of dystrophin in the regeneration of peripheral nerves. To test this hypothesis we examined nerve regeneration in mdx mice. Adult male mdx and control C57Bl/10 mice were anesthetized with a mixture of ketamine hydrochloride and thyazine hydrochloride. Right sciatic nerve was exposed at mid thigh and crushed with a fine forceps. The wound was closed and mice were kept with food and water ad libitum in a light-dark cycle of 12hs. One group was treated with L-arginine (6mg/kg) in drinking water. Six and 21 days after nerve crush mice were anesthetized and perfused intracardiacally with Karnovsky solution. Sciatic nerves were excised and fragments were immersed in the same fixative for 24 hours and post-fixed in 1% osmium tetroxide for 2 hours. They were conventionally processed for electron microscopy. Transverse semithin sections were stained with 0.5% toluidine blue. Sections were viewed under a Nikon Eclipse E-400 (Nikon, Inc.) microscope. The density of axons with myelin breakdown, of Schwann cells/macrophages filled with myelin debris (6 days) and of myelinated regenerating axons (3 weeks) were directly counted. Our results demonstrated that the density of axons displaying myelin breakdown was significantly higher in mdx than in crushed C57Bl/10 (312±10,2/mm2 versus 213,8±4,6/mm2) the density of macrophages and Schwann cells with myelin debris were respectively 77,6±5,6/mm2 and 148±2,4/mm2. After 21 days, all parameters (axonal diameter, myelin sheath thickness, number of regenerating axons) were significantly lower in mdx mice. When mdx was treated with L-arginine such parameters were not significantly different from control. These results demonstrated that dystrophin plays a role on nerve regeneration and that nitric oxide may be an important factor in that.
Mestrado
Anatomia
Mestre em Biologia Celular e Estrutural
Lessa, Thais Borges. "Estudo comparativo da contratilidade e das propriedades passivas do músculo diafragma do mdx, mdx/utrn+/- e C57Bl10 com diferentes idades." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-06062016-153503/.
Full textDuchenne Muscular Dystrophy (DMD) is an important and severe muscle wasting disease caused by a dystrophin mutation. In the absence of dystrophin, sarcolemma becomes vulnerable to damage due a damage caused by continuous cycles of degeneration regeneration. Consequently, the muscle force reduces and the myofibers are replaced by fibrotic tissue. Between the skeletal muscles, the diaphragm is main affected muscle in DMD. Similarly, to a human DMD, despite the mdx model exhibit a milder phenotype, he presents the diaphragm muscle severely affected, as it was observed in our previous study, here described. However, it is also considered a poor model because it cannot reproduce the severe dystrophic phenotype seen in patients. An utrophin heterozygous utrophin mice (mdx/utrn+/- ), has been hypothesized as an intermediate model and they are gaining popularity in many laboratories. However unfortunately there is currently, no physiological enough evidence to justify the choice of this model for experimental therapies. Therefore, in this study, we aimed to elucidate the real contribution of the mdx/utrn+/- for the experimental therapies. To test this hypothesis, we evaluated the diaphragm muscle morphology and muscle function of the mdx and mdx/utrn+/- with 2 and 6 months. To elucidate the diaphragm morphology, we used light microscopy techniques and immunostaining analysis. Muscle function was evaluated through the active and passive properties. The clamps allowed to safe evaluate the diaphragm function. The update of the new protocol was efficient and able to evaluate the active and passive properties. At 2 months, the Hematoxylin and eosin, Masson Thrichome, Alisarine red, revealed that the mdx/utrn+ showed more inflammatory infiltrate, connective tissue and more areas with calcification than mdx model. At 6 months, there was no significant differences between mdx and mdx/utrn+. In the immunohistochemical analysis for eMyHC (embryonic myosin heavy chain), there was no difference between mdx and mdx/utrn+/- at 2 and 6 months. However, the results obtained in both ages, showed muscle regeneration Marking for dystrophin and utrophin protein, inflammatory cells and fiber type were also detected by immunohistochemistry. Marking for dystrophin was absent in mdx and mdx/utrn+/- with 2 and 6 months. Marking for utrophin protein was more evident in mdx than in mdx/utrn+/- mice, evidencing the utrophin haploinsufficiency in mdx/utr+/-. Macrophages were increased in mdx/utrn+/- than in mdx mice with 2 and 6 months, showing an inflammation. Neutrophils were increased in mdx/utrn+/- at 2 month-old, evidencing the acute phase of inflammation. However, at 6 months similar amounts of neutrophil were detected in mdx and mdx/utrn+/-. Fibers marked by MyHC-I, IIa and IIx were detected in a higher percentage in BL10 than in mdx and mdx/utrn+/- at 2 months, showing that this change could collaborate with force decrease in these animals. At 6 months, similar percentage of MyHC-I was detected in BL10, mdx and mdx/utrn+/-. MyHC-IIa animals were not found at 6 months. Higher percentage of MyHC-IIx was found in BL10 than in mdx and mdx/utrn+/- with 6 months. Low percentage of MyHC- I/IIa was detected in mdx and mdx/utrn+/- at 2 and 6 months and it was absent in BL10 in the same age. Fibers marked by MyHC-IIa/IIx isoforms were increased in mdx and mdx/utrn+/- with 2 and 6 months. These changes could help to maintain the muscle force. MyHC-IIx-IIb was detected in higher percentage in mdx, reduced the BL10 and it was absent in mdx/utrn+/- with 2 months. MyHC-IIx-IIb was not identified in the animals with 6 months. Contractile properties in mdx/utrn+/- at 2 months were more affected than in mdx mice. Pt (maximal twitch force), sPt (specific twitch force), Po (maximal tetanic force) and sPo (specific tetanic force) showed more severely affected in mdx/utrn+/- than in mdx mice. At 6 months there were no significant difference in Pt, sPt, Po and sPo between mdx/utrn+/- and mdx mice. Passive properties of mdx/utrn+/- with 2 months presented more affected than the in mdx mice. However, at 6 months, this property did not differ between mdx/utrn+/- and mdx mice. In summary, we concluded that the mdx/utrn+/- at 2 month represent a superior model than the mdx with matched-age, since they presented morphology and contractile and passive properties more compromised than mdx mice. At 6 months, the mdx/utrn+/-contractile and the passive properties and morphology did not differ from the mdx mice age-matched. We suggest that the use of mdx/utrn+/- with 2 months-old would represent would represent a better model to test the potential of the therapies than mdx mice
Calyjur, Priscila Clara. "Efeitos da mutação mdx no background 129/Sv." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/41/41131/tde-17072015-142001/.
Full textThe mdx mouse, murine model for Duchenne Muscular Dystrophy (DMD) has a point mutation in the dystrophin gene that results in the absence of the protein in the muscle, however its phenotype is mild, which makes it a good genetic and molecular model, but not a good functional model. Hoping to obtain a model for DMD with a phenotype that is more similar the patients\', it was chosen to transfer the mdx mutation to the 129/Sv background. Through successive breedings, 3 generations of mdx animals with 129/Sv background were obtained and each generation was functionally evaluated for 6 months. Since the first generation it is possible to observe that the mdx129 animals are stronger than the original mdx with C57BL background. The results were the opposite of what was expected in the beginning of the experiments, therefore the study was redirectioned to try to understand the reason of the improved phenotype. About the general histological pattern, there are differences between mdxC57BL and mdx129. It can be observed that the mdx129 animals enter the degenerative process later than the mdxC57BL animals and the regenerative process lasts longer. Through microarray studies it was possible to observe that the 129/Sv animals present few differentially expressed genes (DEGs) in comparison to the C57BL animals; therefore both backgrounds are very similar. The mdxC57BL presents many more DEGs in comparison to C57BL than mdx129 in comparison to 129/Sv, however both models present more super expressed genes than sub expressed, indicating that the dystrophic and regenerative alterations are more associated to the activation rather than the repression of genes. When the DEGs of both mdx models are distributed in functional categories, there is the predominance of genes related to the immune system and when this category is omitted for the better visualization of the remaining, it can be observed that both models present similar functional categories, but with different proportions. In the mdx129 model we can highlight the decrease in participation of the endo/exocytic pathway (vesicle traffic) and homeostasis categories, and increase in participation of the extracellular matrix and enzymatic activity categories. Each model presents exclusive genes, highlighting SPP1 and IL1RN in the comparison 129/Sv x mdx129F3. SPP1 encodes the protein osteopontina (OPN) and the polymorphism rs28357094 in this gene is used as a DMD prognostic biomarker. The role of OPN in the dystrophy progression is not well known. Some studies claim that the absence of OPN increases the muscle strength of the mdx mouse, while others indicate that its participation is necessary to muscle regeneration. More studies are needed to ascertain what pathway is responsible for the phenotypic improvement of the mdx129 model. The IL1RN gene encodes the protein IL-1Ra, and interleukin 1 antagonist, which is a pro-inflammatory and pro-fibrotic cytokine. Therefore, the increase in the expression of its antagonist suggests that the mdx129F3 animals may be more protected from the inflammatory process caused by these molecules. When the filtered lists for skeletal muscle of the comparisons C57BL x mdxC57BL e 129/Sv x mdx129F3 were analyzed for the formation of metabolic pathways, only one pathway was generated in both comparisons. The pathway generated in the analysis C57BL x mdxC57BL has more molecules that the one generated by the 129/Sv x mdx129F3 list, but all molecules present in the latter are also present in the former, indicating that even with different numbers of molecules involved, the genes participate in the same pathways. The comparisons of each generation of mdx129 with the 129/Sv and the comparison of the generations among each other show that the effects of the background change are present since the first generation and are not altered with the successive breedings.
Pinto, Leslie Cristina. "Perfis das distroglicanas e morfo-fisiologia do lobo ventral da prostata de camundongos distroficos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/318014.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: A distroglicana (DG) é uma importante proteína estrutural a qual está envolvida no desenvolvimento celular epitelial, formação de membrana basal e manutenção da integridade de diferentes tecidos. Estudos indicaram que a alteração na expressão da DG é um evento freqüente nas malignecências humanas e sugerem que esta molécula tem um papel importante no desenvolvimento de tumor. No câncer de próstata, verificou-se expressiva redução das distroglicanas, especialmente da _-DG, acarretando em progressão tumoral e ocorrência de metástases. Desta maneira, alterações na expressão das distroglicanas podem ser relevantes na patogênese das doenças prostáticas. Além disto, estas moléculas fazem parte de um complexo glicoproteíco e estão relacionadas a uma série de proteínas tais como, agrinas, lamininas e a distrofina. Devido à deficiência de distrofina, este complexo está desestruturado na distrofia muscular de Duchenne e, no camundongo mdx. Este trabalho teve como objetivos caracterizar a estrutura epitelial e estromal do lobo ventral da próstata do camundongo mdx, identificar a ocorrência de receptores para distroglicanas _ e _, IGF-1, laminina _-3, estabelecer correlações entre os processos de proliferação e morte celular e analisar a viabilidade do camundongo mdx como modelo experimental no estudo de patologias prostáticas. Um total de 30 animais (15 C57BL10 e 15 mdx) foi dividido em 2 grupos experimentais: controle e mdx. Amostras do lobo ventral da próstata foram coletadas para análises macroscópicas, imunohistoquímicas, microscopias de luz e eletrônica de transmissão e análises morfométricas. Dosagens sorológicas de estradiol e testosterona foram realizadas. Os resultados mostraram que os níveis séricos de testosterona foram significativamente diminuídos nos camundongos mdx em relação aos controles. Em contraste, os níveis séricos de estradiol do grupo mdx mostraram-se significativamente aumentados em relação ao controle. Acentuada atrofia celular, ocorrência de neoplasia intraepitelial prostática, hipertrofia estromal, presença de células inflamatórias e hipertrofia estromal foram evidenciadas nos animais mdx. A intensidade da reação de imunolocalização da distroglicana foi de fraca expressão em relação ao controle, assim como a da laminina. Já a imunolocalização do IGF foi intensa em relação ao controle. Conclui-se que os animais mdx apresentaram alterações significativas na integridade estrutural e molecular prostática, com sinais de aumento do processo proliferativo, comprometendo a homeostase glandular e o processo reprodutivo destes animais.
Abstract: The prostate is a fundamental accessory sex gland for the male reproductive process and the stroma-epithelium interaction has an important role in prostate structural maintenance and function. The basal membrane is an interaction link, offering mechanical and physiological support. Nowadays, different studies suggest that dystroglycan (DG), which is an adhesion protein, plays a role in different types of cancer development and progression, including that of the prostate. Thus, the aims of this work were to characterize structural, ultrastructural and proliferative features of the prostatic stroma and epithelium of mdx mice; to verify the immunolocalization of the _ and ß dystroglycan, IGF-I and laminin _3 receptors; and to relate those structural and molecular events to prostate pathogenesis as well as to verify the viability of this experimental model in prostate disease studies. Thirty male mice (mdx and C57BL10/Uni) were divided into two groups: control and mdx. Samples from the ventral prostate were collected for immunological, Western Blotting, transmission electron and light microscopies and morphometrical analyses. Estradiol and testosterone measurements were verified. The results showed diminished testosterone and increased estradiol levels in the mdx group. Atrophied cells, stromal hypertrophy and prostatic intraepithelial were verified in the mdx mice. Weak _ and ß dystroglycan and laminin _3 immunolocalization was verified in the mdx group. However, intense IGF-I receptor localization was identified in the mdx animals. Thus, it was concluded that mdx animals presented changes in the molecular and structural integrity and proliferation signals, leading to glandular pathogenesis, compromising prostate homeostasis and the reproductive process. Apart from this, the destructuring of the dystroglycandystrophin complex can be considered a trigger factor for prostate pathogenesis. It can also point towards that the steroid-hormone and IGF relationship can be an alternative towards new therapies to treat prostatic diseases.
Mestrado
Anatomia
Mestre em Biologia Celular e Estrutural
Hermes, Túlio de Almeida 1991. "Influência do cilostazol na degeneração muscular de camundongos MDX." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/317502.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: Estresse oxidativo e resposta inflamatória exacerbada são fatores que contribuem com a fisiopatogênese da distrofia muscular de Duchenne (DMD). No presente trabalho, avaliamos se a administração de Cilostazol, antes que se iniciem os ciclos degeneração/regeneração, diminui a degeneração muscular em camundongos mdx, modelo experimental da DMD. Nossa hipótese é que o Cilostazol possa apresentar efeito benéfico sobre as fibras musculares distróficas, uma vez que, este apresenta efeitos anti-inflamatório (reduzindo a expressão de citocinas pró-inflamatórias como o TNF-?, IL-1? e IL-6) e antioxidante (diminuindo a atividade de superóxido e eliminando radicais hidroxilas). Para verificar o efeito do cilostazol sobre as fibras musculares distróficas, camundongos mdx, com 14 dias de vida, receberam por gavagem 100 mg/kg de Cilostazol, por 14 dias consecutivos (grupo mdxC). Camundongos mdx não tratados (grupo mdx) e da linhagem C57BL/10 (grupo Ctrl) foram utilizados como controle. A análise de medida de força realizada em todos os animais (antes e após o período de tratamento) demonstrou que os animais do grupo mdxC apresentaram maior força muscular (cerca de 32%) em relação ao grupo mdx. Na análise bioquímica da degeneração muscular (análise de creatina quinase- CK em amostras de sangue), observou-se aumento significativo nos níveis séricos de CK nos camundongos mdx em relação aos animais controle e redução significativa de 63,2% deste aumento nos mdx tratados com Cilostazol. Na análise histológica dos músculos bíceps braquial (BB), diafragma (DIA) e tibial anterior (TA), verificou-se redução de 93,6% de fibras em degeneração (indicadas pela marcação com azul de Evans) no músculo BB, redução de 66,6% e 36,7% de fibras regeneradas (indicadas pela presença de núcleo centralizado) nos músculos TA e DIA, respectivamente e redução de 39,1% na área de inflamação no músculo BB dos animais do grupo mdxC em relação ao grupo mdx. Através da técnica de western blotting, moléculas envolvidas no processo inflamatório como o TNF-? e NF-?B e um dos produtos da peroxidação lipídica, o 4-HNE, foram analisados nos músculos BB, DIA e TA. Nos animais do grupo mdxC, observou-se diminuição significativa no conteúdo de TNF-? nos músculos DIA (48,5%), TA (35,4%) e BB (45,9%) em relação ao controle. O conteúdo de NF-?B apresentou-se reduzido 25,9% no músculo DIA. O conteúdo de 4-HNE reduziu nos músculos analisados do grupos mdxC, porém esta redução não foi significativa. Na reação Dihydroetidio (DHE) para detecção de espécies reativas de oxigênio, o tratamento com Cilostazol demonstrou ser potencialmente eficaz contra o estresse oxidativo, reduzindo a marcação de DHE em 36,8%, 40,4%, e 75,4% nos músculos BB, TA e DIA, respectivamente. Na análise de vascularização, observamos que os animais tratados com Cilostazol apresentaram aumento da densidade de microvasos no tecido muscular (cerca de 42,7% para o músculo BB e 15,3% para o músculo DIA). Em relação à análise da atividade antioxidante no músculo quadríceps (QUA), identificamos aumento na quantidade de GSH (33,1%) e na atividade da GR (89,1%), no grupo mdx em relação ao Ctrl. Em relação ao tratamento, este não apresentou efeito sobre a atividade antioxidante. O conjunto dos resultados nos permite sugerir que o Cilostazol apresenta potencial efeito benéfico sobre as fibras musculares distróficas
Abstract: Oxidative stress and exacerbated inflammatory response are factors that contribute to Duchenne muscular dystrophy (DMD) pathogenesis. In this work, we evaluated whether administration of Cilostazol, before beginning the degeneration/regeneration cycles, reduces muscle degeneration in mdx mice, an experimental model of DMD. Our hypothesis is that the Cilostazol may provide beneficial effects on dystrophic muscle fibers, since this has anti-inflammatory effects (reducing the expression of proinflammatory cytokines such as TNF-?, IL-1? and IL-6) and antioxidant (decreasing the activity of superoxide and eliminating hydroxyl radicals). To evaluate the Cilostazol effects on dystrophic muscle fibers, mdx mice, 14 days old, received by gavage 100 mg/kg of Cilostazol for 14 consecutive days (mdxC group). Mdx mice untreated (mdx group) and C57BL/10 mice (group Ctrl) were used as controls. Analysis strength measurement performed in all animals (before and after the treatment period) demonstrated that the animals of the mdxC group higher muscle strength (by 32%) compared to mdx group. In biochemical analysis of muscle degeneration (creatina kinase ¿ CK analysis in blood samples), there was significant increase in CK levels in mdx mice compared to control animals and a significant reduction by 63.2% of this increase in Cilostazol treated mdx. Histological analysis of the biceps brachial (BB), diaphragm (DIA) and tibial anterior (TA), showed a reduction of 93.6% of degenerating fibers (indicated by labeling with Evans blue) in the BB muscle, reduction of 66.6% and 36.7% of regenerated fibers (defined by central nuclei presence) in TA and DIA muscles respectively, and a reduction by 39.1% in inflammation area in BB muscle of mdxC group compared to mdx group. By the western blotting technique, molecules involved in inflammation such as TNF-? and NF-?B and one of the lipid peroxidation product, 4-HNE, were analyzed in the BB, DIA and TA muscles. In animals of mdxC group, we observed a significant decrease in TNF-? content in DIA (48.5%), TA (35.4%) and BB (45.9%) compared to control muscles. The NF-?B content had been reduced by 25.9% in the DIA muscle. The 4-HNE content reduced in the muscles analyzed in mdxC groups, but this reduction was not significant. In Dihydroethidium (DHE) reaction for detecting reactive oxygen species, treatment with Cilostazol shown to be potentially effective against oxidative stress, reducing DHE marking by 36.8%, 40.4% and 75.4% in BB, TA and DIA muscles, respectively. In the vasculature analysis, we observed that cilostazol treated animals showed increased microvessel density in muscle tissue (approximately by 42.7% for the BB muscle and 15.3% for DIA muscle). On the analysis of antioxidant activity in the quadriceps (QUA), we identified an increase in the GSH content (33.1%) and GR activity (89.15) in the mdx group compared to Ctrl group. Regarding treatment, this had no effect on antioxidant activity. The results together suggest that cilostazol has a potential beneficial effect on the dystrophic muscle fibers
Mestrado
Anatomia
Mestre em Biologia Celular e Estrutural
Lekan, Jaimy Marie. "Exercise-induced mechanisms of muscle adaptation in mdx mice." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1095372379.
Full textEsper, Greyson Vitor Zanatta. "Terapia celular sob aquapuntura em modelos murinos para distrofia muscular de Duchenne." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-12062013-114220/.
Full textMuscular dystrophy in mdx mouse is an animal model used to study Duchenne muscular dystrophy (DMD) in humans. Although this model presents a milder degeneration, there are several studies with this animal due to the high reproducibility of phenotypes, obtaining various lines available and low maintenance cost. It is known that progressive muscle degeneration occurs due to a genetic mutation that culminates in the absence or decreased production of dystrophin protein. This change generates a cascade of events which aggravate the muscle degeneration. Currently, the recommended therapy is the use of corticosteroids to modulate muscle inflammation; however, there are a number of collateral effects, so a series of studies suggesting other forms of treatment have been developed. A promising treatment seems to be a therapy with mesenchymal stem cells, which can interfere with the degenerative process by cellular immunomodulation. As acupuncture can control the inflammatory process of degenerative diseases such as Parkinson\'s disease, the use of both syndication therapies may reduce the DMD degenerative effect. In this study 22 mdx mice, males, 4-6 weeks of age were evaluated. Stem cells were used for the application of human dental pulp carrying the green fluorescent protein (EGFP) and the quantity applied to each acupoint was 1x104 cells. The acupoints selected were B47 (Hunmen), B49 (Yishe) and B52 (Zhishi). The animals were randomly assigned to four treatments groups: (A) stem cells in false acupoints, (B) saline in true acupoints, (C) stem cells in true acupoints and (D) control without any treatment. In total, three injections were performed over a period of 56 days of study. Evaluations of treatment were made by analyzing the tensile strength of muscles, measuring the serum creatine phosphokinase (CPK), structuring of myofibrils by histology and morphometry of collagen immunohistochemistry and by the amount of dystrophin protein. At day ten after the third application of stem cells there is a difference only in the control group, which manifests an increase in CPK compared to other treatments and no statistical difference in tensile strength. In the histology of cranial tibial muscles and diaphragm, inflammatory infiltrates were observed, as well as tissue regeneration and decreased collagen in the treated groups (p <0.05). On immunohistochemistry there was an improvement in the amount of dystrophin in animals treated mainly in acupoints true (p <0.05) and through analysis and tracking of stem cells with EGFP it was not possible to determine its path once immunoreactivity was not observed in analyzes using anti-GFP. We conclude that treatment with stem cell therapy on true and false acupoints and with saline solution on acupoints can improve muscular degenerative disease in mdx by increased expression of dystrophin protein.
ALBUQUERQUE, Erivam Anselmo de. "Uma análise comparativa de funções MDX nos servidores Analysis Services e Mondrian." Universidade Federal de Pernambuco, 2013. https://repositorio.ufpe.br/handle/123456789/11963.
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A MultiDimensional eXpression (MDX) é uma linguagem de consulta para processamento analítico de dados ou On-line Analytical Processing (OLAP). Apesar de esta linguagem ser usada pela maioria dos servidores OLAP, esta não é um padrão de direito. Portanto, tem-se pouca (ou nenhuma) garantia de que as funções MDX usadas por um servidor OLAP também possam ser usadas em outros servidores. Neste contexto, de forma a comparar as funções MDX de um servidor OLAP de código aberto e outro de código fechado, os servidores Mondrian e Analysis Services, por serem bem aceitos tanto pela academia quanto pela indústria, foram respectivamente escolhidos. Para realizar este estudo comparativo, o qual consiste em examinar se existe diferença entre as gramáticas da linguagem MDX usadas por estes servidores, será utilizada a seguinte estratégia: identificar quais funções são específicas de um servidor, quais funções são comuns aos servidores e, dentre as funções comuns (i.e., com o mesmo nome), se existe diferença de sintaxe entre elas. De forma a executar este estudo, será apresentado o cenário de testes aplicados, bem como a ferramenta TestMDX que foi desenvolvida para automatizar a execução dos testes. Por fim, será apresentada uma análise dos resultados obtidos.
Beqaj, Besa. "Influence of the MuSK-system on muscle pathology in the mdx mouse model of Duchenne Muscular Dystrophy." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/22726.
Full textThomas, Karen. "The mdx mouse as a model for Duchenne muscular dystrophy." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386990.
Full textBooks on the topic "MDX"
Whitehorn, Mark, Robert Zare, and Mosha Pasumansky. Fast Track to MDX. London: Springer London, 2006. http://dx.doi.org/10.1007/1-84628-182-2.
Full textSmith, Ian Curtis. Force potentiation in the MDX mouse. St. Catharines, Ont: Brock University, Faculty of Applied Health Sciences, 2007.
Find full textSAS Institute. SAS 9.2 OLAP Server: MDX guide. Cary, N.C: SAS Institute Inc., 2009.
Find full textExploring MDX using Microsoft SQL Server 2012. Irving, Texas: eGurus, 2012.
Find full textMDX with Microsoft SQL server 2008 R2 analysis services cookbook: 80 recipes for enriching your Business intelligence solutions with high-performance MDX calculations and flexible MDX queries. Birmingham: Packt Publishing, 2011.
Find full textHarold, Haynes John, ed. Honda Pilot, Acura MDX automotive repair manual. Sparkford, Nr Yeovil, Somerset, England: Haynes Pub. Group, 2007.
Find full textRyan, Clay C., ed. Microsoft SQL Server 2008 MDX step by step. Redmond, Wash: Microsoft Press, 2009.
Find full textSackett, Larry. MDX reporting and analytics with SAP NetWeaver BW. Boston: Galileo Press, 2009.
Find full textHonda Giken Kōgyō Kabushiki Kaisha. Acura MDX body repair manual, 2001 model series. [Tokyo?]: Honda Motor Co., 2000.
Find full textMDX reporting and analytics with SAP NetWeaver BW. Bonn: Galileo Press, 2010.
Find full textBook chapters on the topic "MDX"
Janus, Philo, and Guy Fouché. "MDX." In Pro SQL Server 2008 Analysis Services, 219–49. Berkeley, CA: Apress, 2010. http://dx.doi.org/10.1007/978-1-4302-1996-5_9.
Full textWhitehorn, Mark, Robert Zare, and Mosha Pasumansky. "MDX queries." In Fast Track to MDX, 35–52. London: Springer London, 2002. http://dx.doi.org/10.1007/1-84628-182-2_3.
Full textWhitehorn, Mark, Robert Zare, and Mosha Pasumansky. "MDX syntax." In Fast Track to MDX, 53–57. London: Springer London, 2002. http://dx.doi.org/10.1007/1-84628-182-2_4.
Full textWhitehorn, Mark, Robert Zare, and Mosha Pasumansky. "MDX expressions." In Fast Track to MDX, 58–79. London: Springer London, 2002. http://dx.doi.org/10.1007/1-84628-182-2_5.
Full textFouché, Guy, and Lynn Langit. "Introduction to MDX." In Foundations of SQL Server 2008 R2 Business Intelligence, 347–67. Berkeley, CA: Apress, 2011. http://dx.doi.org/10.1007/978-1-4302-3325-1_13.
Full textWhitehorn, Mark, Robert Zare, and Mosha Pasumansky. "Recursion in MDX." In Fast Track to MDX, 263–83. London: Springer London, 2002. http://dx.doi.org/10.1007/1-84628-182-2_20.
Full textRoot, Randal, and Caryn Mason. "Reporting with MDX Queries." In Pro SQL Server 2012 BI Solutions, 565–614. Berkeley, CA: Apress, 2012. http://dx.doi.org/10.1007/978-1-4302-3489-0_14.
Full textWhitehorn, Mark, Robert Zare, and Mosha Pasumansky. "More MDX in general." In Fast Track to MDX, 251–62. London: Springer London, 2002. http://dx.doi.org/10.1007/1-84628-182-2_19.
Full textWhitehorn, Mark, Robert Zare, and Mosha Pasumansky. "How MDX is used." In Fast Track to MDX, 29–34. London: Springer London, 2002. http://dx.doi.org/10.1007/1-84628-182-2_2.
Full textGinat, Daniel Thomas, and Gul Moonis. "Ipilimumab (MDX-010, Yervoy)." In Neuroimaging Pharmacopoeia, 169–75. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-12715-6_22.
Full textConference papers on the topic "MDX"
Zhang, Pingjian, and Jianqing Xi. "Attribute-Driven Design of MDX Compiler." In 2008 International Conference on Computer Science and Software Engineering. IEEE, 2008. http://dx.doi.org/10.1109/csse.2008.685.
Full textBergamaschi, Sonia, Matteo Interlandidi, Mario Longo, Laura Po, and Maurizio Vincini. "A Meta-language for MDX Queries in eLog Business Solution." In 2012 IEEE International Conference on Data Engineering (ICDE 2012). IEEE, 2012. http://dx.doi.org/10.1109/icde.2012.100.
Full textRappa, Francesca, Maria Bonsignore, Monica Frinchi, Giuseppa Mudò, Natale Belluardo, Francesco Cappello, and Giuseppe Morici. "Small airways in in sedentary and endurance-trained dystrophic (mdx) mice." In Annual Congress 2015. European Respiratory Society, 2015. http://dx.doi.org/10.1183/13993003.congress-2015.pa2301.
Full textBates, Genevieve, Sara Sigurdardottir, Linda Kachmar, Nedjma B. Zitouni, Basil J. Petrof, Dilson J. Rassier, and anne-marie lauzon. "Molecular, Cellular, And Muscle Strip Mechanics Of The MDX Mouse Diaphragm." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a2458.
Full textBates, Genevieve, Anne-Marie Lauzon, and Basil J. Petrof. "Molecular Mechanics Of Myosin In Muscular Dystrophy: The MDX Mouse Diaphragm." In American Thoracic Society 2010 International Conference, May 14-19, 2010 • New Orleans. American Thoracic Society, 2010. http://dx.doi.org/10.1164/ajrccm-conference.2010.181.1_meetingabstracts.a5048.
Full textTeixeira, Kadu Ferreira Gonçalves, and Victor Augusto Ramos Fernandes. "SUPLEMENTAÇÃO DE CREATINA MONOIDRATADA EM CAMUNDONGOS MDX: EFEITOS MORFOMÉTRICOS E ESTEREOLÓGICOS." In XIX Fórum de Iniciação Científica PIBIC-FMJ-CNPq. Recife, Brasil: Even3, 2023. http://dx.doi.org/10.29327/1317177.19-31.
Full textDerwin, Dan, David Passmore, Janette Sung, Daniel Tengco, Brian Lee, Barbara Aguilar, Tim Chen, et al. "Abstract 2575: Activation of antibody drug conjugate MDX-1203 by human carboxylesterase." In Proceedings: AACR 101st Annual Meeting 2010‐‐ Apr 17‐21, 2010; Washington, DC. American Association for Cancer Research, 2010. http://dx.doi.org/10.1158/1538-7445.am10-2575.
Full textJoseph, S., S. Qureshi, and BJ Petrof. "Potential Role of Toll-Like Receptors in the Dystrophic (mdx)Mouse Diaphragm." In American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a4191.
Full textRazgovorova, I., and A. Fedorova. "THE ROLE OF TIGHT GUNCTION PROTEINS IN THE NERVE OF MDX MICE." In XIX INTERNATIONAL INTERDISCIPLINARY CONGRESS NEUROSCIENCE FOR MEDICINE AND PSYCHOLOGY. LCC MAKS Press, 2023. http://dx.doi.org/10.29003/m3353.sudak.ns2023-19/240-241.
Full textDE SOUZA FURLAN, STEPHANIE, Maria Julia Marques, JULIANO ALVES PEREIRA, and HUMBERTO SANTO NETO. "Efeitos do ômega-3 na autofagia do músculo cardíaco de camundongos mdx." In XXIV Congresso de Iniciação Científica da UNICAMP - 2016. Campinas - SP, Brazil: Galoa, 2016. http://dx.doi.org/10.19146/pibic-2016-50616.
Full textReports on the topic "MDX"
Gammel, J. T., A. Saxena, and A. R. Bishop. Dynamics and Photoexcitation in MX and MXX' Chain Solids. Fort Belvoir, VA: Defense Technical Information Center, March 1993. http://dx.doi.org/10.21236/ada264823.
Full textDimonte, G., M. Schneider, and E. Frerking. Turbulent mix experiments. Office of Scientific and Technical Information (OSTI), October 1995. http://dx.doi.org/10.2172/204087.
Full textHooper, E. B., S. L. Allen, M. D. Brown, J. A. Byers, T. A. Casper, B. I. Cohen, R. H. Cohen, M. E. Fenstermacher, J. H. Foote, and K. Hoshino. MTX final report. Office of Scientific and Technical Information (OSTI), January 1994. http://dx.doi.org/10.2172/10194124.
Full textStrauss, H., and E. Hameiri. Solar Flare MDH. Fort Belvoir, VA: Defense Technical Information Center, February 1993. http://dx.doi.org/10.21236/ada262275.
Full textEric L. Shaber and Bradley J Schrader. MOX Fabrication Isolation Considerations. Office of Scientific and Technical Information (OSTI), August 2005. http://dx.doi.org/10.2172/911246.
Full textRivest, R. L. MD4 Message Digest Algorithm. RFC Editor, October 1990. http://dx.doi.org/10.17487/rfc1186.
Full textTouch, J. Report on MD5 Performance. RFC Editor, June 1995. http://dx.doi.org/10.17487/rfc1810.
Full textBaker, F., and R. Atkinson. RIP-2 MD5 Authentication. RFC Editor, January 1997. http://dx.doi.org/10.17487/rfc2082.
Full textTurner, S., and L. Chen. MD2 to Historic Status. RFC Editor, March 2011. http://dx.doi.org/10.17487/rfc6149.
Full textTurner, S., and L. Chen. MD4 to Historic Status. RFC Editor, March 2011. http://dx.doi.org/10.17487/rfc6150.
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