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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.
151

Erythrocyte membrane phosphorylation in Plasmodium berghei infected mice /

Porntip Chaimanee, Yongyuth Yuthavong, January 1982 (has links) (PDF)
Thesis (Ph.D. (Biochemistry))--Mahidol University, 1982.
152

Studies on the mechanism of ivasion of human erythrocytes by merozoites of Plasmodium falciparum /

Porn-ngarm Dejkriengkraikhul, Prapon Wilairat, January 1982 (has links) (PDF)
Thesis (M.Sc. (Biochemistry))--Mahidol University, 1982.
153

Quantitative determination of glucose-6-phosphate dehydrogenase and its potential in diabetic complications

Subasinghe, C. Wasanthi January 2008 (has links)
Thesis (Ph. D.)--Michigan State University. Chemistry, 2008. / Title from PDF t.p. (viewed on Aug. 11, 2009) Includes bibliographical references. Also issued in print.
154

Defining a novel role of hydroxyurea on erythrocytes

Raththagala, Madushi Upendrika. January 2008 (has links)
Thesis (PH.D.)--Michigan State University. Chemistry, 2008. / Title from PDF t.p. (viewed on Aug. 11, 2009) Includes bibliographical references. Also issued in print.
155

Protein trafficking and 4.1R relocalization in Plasmodium falciparum-infected erythrocytes

Parish, Lindsay A. January 2009 (has links) (PDF)
Thesis (Ph.D.)--University of Alabama at Birmingham, 2009. / Title from PDF title page (viewed on Sept. 9, 2009). Includes bibliographical references.
156

Kvalitativní parametry erytrocytů u vybraných druhů zvířat / Qualitative parameters of erythrocytes in selected animal species

BÖHMOVÁ, Václava January 2014 (has links)
The goal of the thesis is to evaluate the haematologic indicators of red blood cells depending to the physiological condition and yield of cattle, sheep and dogs. The evaluation of qualitative parameters of red blood cells included 59 dairy cows, 57 meat cows, 62 sheep and 73 dogs. The evaluation of the haematologic parameters of cattle was performed based on the production (yield) type and by season; that of sheep, by season, age and sex of lambs; and that of dogs, by sex, age and size - weight. The yield types showed statistically significant difference between the number or erythrocytes, haematocrit, haemoglobin, MCV and MCH concentration. The dairy cows showed seasonal fluctuations of the number of erythrocytes, haematocrit and haemoglobin; the meat cows showed fluctuations of the haemoglobin, MCH and MCHC values. The age influenced higher values of erythrocytes in sheep and lower values of MCV and MCH in lambs. The sex of lambs did not lead to significant differences. The evaluation of dogs by age showed differences of haematocrit and haemoglobin values. The dog size (weight) and the sex did not have demonstrable influence on haematologic values. Anaemia was found in 36 % dairy cows (it did not occur in meat cattle) and in 2 sheep (3 %). By most authors, anaemia was not found in dogs.
157

Caracterização de Células Vermelhas por Microscopia de Força Atômica / Characterization of Red Blood Cells using Atomic Force Microscopy

Costa, Erivelton Façanha da January 2006 (has links)
COSTA, Erivelton Façanha da. Caracterização de Células Vermelhas por Microscopia de Força Atômica. 2006. 146 f. Dissertação (Mestrado em Física) - Programa de Pós-Graduação em Física, Departamento de Física, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2006. / Submitted by Edvander Pires (edvanderpires@gmail.com) on 2015-05-05T20:59:55Z No. of bitstreams: 1 2006_dis_efcosta.pdf: 10007653 bytes, checksum: e0be816e57ec642d42d294c9688b5c9f (MD5) / Approved for entry into archive by Edvander Pires(edvanderpires@gmail.com) on 2015-05-07T16:55:52Z (GMT) No. of bitstreams: 1 2006_dis_efcosta.pdf: 10007653 bytes, checksum: e0be816e57ec642d42d294c9688b5c9f (MD5) / Made available in DSpace on 2015-05-07T16:55:53Z (GMT). No. of bitstreams: 1 2006_dis_efcosta.pdf: 10007653 bytes, checksum: e0be816e57ec642d42d294c9688b5c9f (MD5) Previous issue date: 2006 / The optical microscopy is the most employed technique used for visualize red blood cells (RBCs). But, due to its resolution limit, it is necessary to use other complementary techniques to study the cells, such as: the scanning and transmission electron microscopy, and the scanning probing microscopy. The Atomic Force Microscopy (AFM) is included in the last group. This work refers to the possibilities of using AFM in life science, focusing on the erythrocytes characterization. Five experiments involving red blood cells and AFM were carried out: AB+ and O+ blood types differentiation; RBCs membrane study of donors and patients with MDS (Myelodysplastic Syndrome); suitable preparation of red blood cells for AFM analysis; volume study of erythrocytes; and finally aging process observation of RBC in air. The first experiment determined the cell membrane roughness for AB+ and O+ groups, which were different. For the second one, depressions were found on the cell surface of both MSD patients and healthy people. These "holes" were deeper in the first group. The third experiment showed the importance of sample (RBCs) preparation for each AFM specific analysis. The fourth experimental procedure showed the AFM technique capability for providing volume information, which was also used in the last experiment to monitor the aging process of RBCs in air. / A maneira mais difundida na observação de células sanguineas (hemácias) é aquela que utiliza microscopia ótica convencional. Devido ao limite de resolução dos instrumentos óticos, novas técnicas de microscopia colocam-se como alternativas para o estudo de células, tais como: a microscopia eletrônica (de varredura e transmissão) e as técnicas de varredura por sonda. Inclui-se neste último grupo a microscopia de força atômica (AFM). Este trabalho discute as possibilidades de uso da Microscopia de Força Atômica ($emph{Atomic Force Microscopy}$ - AFM) em ciências da vida, para ser mais específico, na caracterização de eritrócitos. Cinco experimentos envolvendo hemácias e AFM estão aqui descritos: diferenciação entre os grupos sanguíneos AB+ e O+; análise do perfil da membrana eritrocitária de indivíduos sadios e portadores de SMD; preparação de células vermelhas para análise em microscopia de força atômica; análise volumétrica de células vermelhas; e monitoramento do envelhecimento de um eritrócito ao ar usando o AFM. No primeiro experimento, a rugosidade das membranas celulares dos grupos AB+ e O+ mostraram-se diferentes. Já no segundo experimento, depressões foram encontradas sobre a membrana de pacientes com SMD e indivíduos sadios, contudo, aparentemente mais profundas no primeiro grupo. O terceiro estudo trouxe à tona a importância da preparação adequada dos eritrócitos para medidas específicas em AFM. A quarta experiência comprovou a capacidade da técnica AFM de fornecer informação de volume, o que também foi utilizado no último experimento para monitorar o envelhecimento de uma hemácia ao ar.
158

Efeito da glicotoxicidade na fosforilacao do receptor de insulina de eritrocitos humanos e de celulas NIH 3T3 .Efeito do metformin na fosforilacao de receptores isolados de celulas NIH 3T3

NOMIZO, REGINA 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:43:53Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:10:36Z (GMT). No. of bitstreams: 1 06785.pdf: 2811813 bytes, checksum: 898347d218a069ca43adfe992a27cd19 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
159

Estudo das proteínas da membrana eritrocitária de mamíferos de treze ordens da classe mammalia / Erythrocyte membrane proteins from selected mammals of thirteen orders

Elvira Maria Guerra Shinohara 30 August 1996 (has links)
Foram estudadas as proteínas da membrana eritrocitária de quarenta e seis espécies diferentes pertencentes à treze ordens da classe Mammalia, através de eletroforese em gel de poliacrilamida. Observamos que: 1. não parece haver correlação entre as concentrações relativas de espectrinas e o volume corpuscular médio. 2. não parece haver correlação entre as concentrações relativas de banda 3 e o volume corpuscular médio. 3. parece haver uma correlação inversa entre as concentrações relativas das anquirinas e o volume corpuscular médio. Assim, a maior parte dos animais pertencentes à ordem dos Artiodacty/a estudados (girafa, cervo nobre, veado campeiro, veado catingueiro, carneiro, cabra), que apresentam volume corpuscular baixo, exibe aumento significativo da concentração das anquirinas. 4. observou-se, o aparecimento de uma banda difusa na região 4.5 no Didelphis marsupialis (gambá), Arctocephalus tropicalis e Arctocephalus australis (lobo marinho subantártico e lobo marinho das ilhas do sul) e Panthera leo (leão) quando os estromas são submetidos à ação do NEM na concentração de 200 µM, e o não encontro desta banda nas demais espécies estudadas. Este fato poderia advir da hipótese de haver, nas três espécies, sequências de aminoácidos comuns que possibilitariam a ação química direta do NEM. 5. observou-se que, nos mamíferos estudados, embora houvesse variações qualitativas e quantitativas das proteínas da membrana nas espécies estudadas, práticamente todas elas apresentaram as proteínas descritas no Homo sapiens, mostrando serem todas elas importantes na manutenção do citoesqueleto e da membrana como um todo. 6. Com exceção da cutia, que exibe provavelmente quatro formas de espectrinas, todas as demais espécies exibiram duas formas, embora com variações qualitativas e quantitativas. 7. A banda 3 foi a proteína que mais exibiu variação, seja no peso molecular, com variação desde 95 kDa (Capra hircus, cabra) até 169 kDa (Alouatta sp, bugio), seja no aspecto difuso ou bem definido. 8. Houve na região 4.1/4.2 uma variabilidade grande, seja qualitativa, seja quantitativa com aparentes ausências dê\' uma ou de outra. Alguns roedores, a cobaia, cutia, hamster exibiram somente uma banda protéica na região 4.1/4.2. 9. Entre os primatas, todas as proteínas apresentaram o mesmo padrão entre os Hominoidea (macacos antropóides, Gorilla gorilla e Pongo pygmaeus e homem, Homo sapiens) e os do Velho Mundo (Cercopithecoidea, Papio cynocephalus e Erythrocebus pata). Mas, os primatas do Novo Mundo (Ceboidea, Cebus apella, Alouatta sp e AteIes paniscus chamek) apresentaram variação do peso molecular da banda 3, apresentando no entanto o mesmo aspecto difuso dos outros primatas descritos anteriormente. 10. Com exceção do Didelphis marsupialis (gambá) e Giraffa came/opardalis (girafa), que apresentaram evidência da ação de serina-proteases sobre uma anquirina, as demais espécies não exibiram proteases intra-eritrocitárias ativas nas condições estudadas. / Forty six different mammal species from thirteen regarding their erythrocyte membrane proteins, following data were observed: 1. No correlation was observed between mean corpuscular volume and spectrins concentration. 2. No correlation was observed between mean corpuscular volume and band 3 concentration. 3. It seems that there is inverse correlation between mean corpuscular volume and ankyrins concentration. Most of the studied animmals belonging to Artiodactyla, which exhibit low mean corpuscular volume, present higher ankyrin concentration. 4. A diffuse band in 4.5 region was observed among the Didelphis marsupialis, Arctocephalus tropicalis, Arctocephalus australis and Panthera leo when the ghosts were treated with 200 µM NEM, what was not found in the others species. This fact could be ascribed to hypothetical sequence of the Iysine, hystidine and cysteine which may be prone to NEM direct chemical action. 5. Although some qualitative and quantitative changes were observed among ali the studied species, ali of them seem to occur in the humans, disclosing that they are \"house-keeping\" proteins which participate as important pieces in the cytoskeleton structure and the membrane as well. 6. Ali the species presented two spectrins, with exception of Dasyprocta sp., which exhibited fours bands in the spectrins region. 7. The band 3 was the protein which showed the greatest variation, since 95 kDa in the Capra hircus up to 169 kDa in the Alouatta sp., as well as in the aspect, diffuse or well defined. 8. A great variability was observed in the 4.1/4.2 region, with apparent absence of one or another. Some Rodentia exhibited only one protein in the 4.1/4.2 region. 9. Among the Primates, the Hominoidea and the Cercopithecoidea presented an uniform pattern, but the New World monkeys (Cebus apella, Alouatta sp. and Ateies paniscus chamek) exhibited a striking molecular weight band 3 variation, although keeping the common diffuse pattern. 11. Ali the studied species did not present the evidence of protease action upon the membrane proteins, except the Didelphis marsupialis and Giraffa camelopardalis, which disclosed a proteolytic action upon the ankyrin.
160

Efeito da glicotoxicidade na fosforilacao do receptor de insulina de eritrocitos humanos e de celulas NIH 3T3 .Efeito do metformin na fosforilacao de receptores isolados de celulas NIH 3T3

NOMIZO, REGINA 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:43:53Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:10:36Z (GMT). No. of bitstreams: 1 06785.pdf: 2811813 bytes, checksum: 898347d218a069ca43adfe992a27cd19 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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