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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

Avaliação do metabolismo oxidativo e da histopatologia renal e hepática de ovinos intoxicados por cobre e tratados com tetratiomolibdato e vitaminas antioxidantes / Evaluation of the oxidative metabolism and kidney and liver histopathology in copper intoxicated lambs treated with tetrathiomolybdate and/or antioxidative vitamins

Weigel, Rebeca Alves 31 October 2008 (has links)
Para avaliar o benefício da utilização parenteral das vitaminas C e/ou E associadas ao quelante de cobre, tetratiomolibdato de amônio (TTM), na recuperação de ovinos com intoxicação cumulativa por cobre (ICC), foram analisados os parâmetros vitais; o metabolismo oxidativo, através das concentrações séricas de ácido úrico e malondialdeído, atividade sanguínea da glutationa reduzida, habilidade de redução férrica plasmática, atividade urinária de N-acetil-β-D-glucosamidase; peso vivo, hematócrito, concentração sérica de cobre, uréia, creatinina e as alterações anatomo-patológicas de 26 ovinos da raça Santa Inês, machos, com peso médio de 25 kg e distribuídos em quatro tratamentos: apenas com TTM, TTM + vitamina C (TTM+VC), TTM + vitamina E (TTM+VE) e TTM + vitaminas C e E (TTM+VCE). A associação das duas vitaminas aumentou o tempo de recuperação renal, porém reduziu a concentração sérica de cobre. A vitamina E mostrou efeito adverso ao esperado em relação à glutationa reduzida e ao malondialdeído séricos. Em algumas variáveis, como concentração sérica de creatinina e glutationa reduzida a utilização da vitamina C proporcionou tendência para melhores resultados em relação aos demais grupos, principalmente ao que possuíam vitamina E no tratamento, coincidentemente os animais deste grupo (TTM+VC) apresentaram a maior taxa de sobrevivência. Os estudos histopatológios e histoquímicos revelaram que a principal lesão hepática encontrada foi infiltrado inflamatório. Nos rins foram freqüentes o infiltrado inflamatório, glomérulonefrite e pigmentos. Constatou-se que, embora tenham ocorrido algumas variações pontuais entre os grupos, o tratamento com TTM associado às vitaminas C e/ou E não surtiu benefícios na recuperação física dos animais nem na redução do estresse oxidativo. / The efficiency of intra muscular vitamin C (VC) and/or E (VE) associated with the classical copper chelate tetrathiomolybdate (TTM) in cumulative copper poisoning treatment was evaluated. Twenty six Santa Inês male lambs weighting 25 kg were distributed in four treatment groups (TTM; TTM+VC; TTM+VE; TTM+VCE). The oxidative metabolism was analyzed through measurement of: serum concentrations of uric acid, malondialdehyde (MDA), blood reduced glutathione, ferric reducing ability of plasma and urinary activity of N-acetyl-β-D-glucosamidase. Live weight, hematocrit; copper, urea and creatinine serum concentrations and histopathological changes were determinated. Vitamins C and E association increased the time of renal recuperation, but reduced copper serum concentration. Serum MDA raised and blood reduced glutathione concentrations diminished in animals of TTM+VE group. Serum creatinine and blood reduced glutathione concentrations had tendency of better results in TTM+VC than TTM+VE and TTM+VCE. Survival index was greater in TTM+VC. Histopathology and histochemistry showed inflammatory infiltrate in liver as well as Glomerulonephritis, inflammatory infiltrate and pigments in the kidneys, in almost all animals. The association of TTM with vitamins C and/or E didnt reduce oxidative stress and had no positive effect on treatment.
2

Avaliação do metabolismo oxidativo e da histopatologia renal e hepática de ovinos intoxicados por cobre e tratados com tetratiomolibdato e vitaminas antioxidantes / Evaluation of the oxidative metabolism and kidney and liver histopathology in copper intoxicated lambs treated with tetrathiomolybdate and/or antioxidative vitamins

Rebeca Alves Weigel 31 October 2008 (has links)
Para avaliar o benefício da utilização parenteral das vitaminas C e/ou E associadas ao quelante de cobre, tetratiomolibdato de amônio (TTM), na recuperação de ovinos com intoxicação cumulativa por cobre (ICC), foram analisados os parâmetros vitais; o metabolismo oxidativo, através das concentrações séricas de ácido úrico e malondialdeído, atividade sanguínea da glutationa reduzida, habilidade de redução férrica plasmática, atividade urinária de N-acetil-β-D-glucosamidase; peso vivo, hematócrito, concentração sérica de cobre, uréia, creatinina e as alterações anatomo-patológicas de 26 ovinos da raça Santa Inês, machos, com peso médio de 25 kg e distribuídos em quatro tratamentos: apenas com TTM, TTM + vitamina C (TTM+VC), TTM + vitamina E (TTM+VE) e TTM + vitaminas C e E (TTM+VCE). A associação das duas vitaminas aumentou o tempo de recuperação renal, porém reduziu a concentração sérica de cobre. A vitamina E mostrou efeito adverso ao esperado em relação à glutationa reduzida e ao malondialdeído séricos. Em algumas variáveis, como concentração sérica de creatinina e glutationa reduzida a utilização da vitamina C proporcionou tendência para melhores resultados em relação aos demais grupos, principalmente ao que possuíam vitamina E no tratamento, coincidentemente os animais deste grupo (TTM+VC) apresentaram a maior taxa de sobrevivência. Os estudos histopatológios e histoquímicos revelaram que a principal lesão hepática encontrada foi infiltrado inflamatório. Nos rins foram freqüentes o infiltrado inflamatório, glomérulonefrite e pigmentos. Constatou-se que, embora tenham ocorrido algumas variações pontuais entre os grupos, o tratamento com TTM associado às vitaminas C e/ou E não surtiu benefícios na recuperação física dos animais nem na redução do estresse oxidativo. / The efficiency of intra muscular vitamin C (VC) and/or E (VE) associated with the classical copper chelate tetrathiomolybdate (TTM) in cumulative copper poisoning treatment was evaluated. Twenty six Santa Inês male lambs weighting 25 kg were distributed in four treatment groups (TTM; TTM+VC; TTM+VE; TTM+VCE). The oxidative metabolism was analyzed through measurement of: serum concentrations of uric acid, malondialdehyde (MDA), blood reduced glutathione, ferric reducing ability of plasma and urinary activity of N-acetyl-β-D-glucosamidase. Live weight, hematocrit; copper, urea and creatinine serum concentrations and histopathological changes were determinated. Vitamins C and E association increased the time of renal recuperation, but reduced copper serum concentration. Serum MDA raised and blood reduced glutathione concentrations diminished in animals of TTM+VE group. Serum creatinine and blood reduced glutathione concentrations had tendency of better results in TTM+VC than TTM+VE and TTM+VCE. Survival index was greater in TTM+VC. Histopathology and histochemistry showed inflammatory infiltrate in liver as well as Glomerulonephritis, inflammatory infiltrate and pigments in the kidneys, in almost all animals. The association of TTM with vitamins C and/or E didnt reduce oxidative stress and had no positive effect on treatment.
3

Nádory v dějinném a kulturním kontextu v novověku. / Tumours in historical and social context in the modern period

Hrudka, Jan January 2017 (has links)
Univerzita Karlova v Praze Přírodovědecká fakulta Studijní program: Filosofie a dějiny přírodních věd MUDr. Jan Hrudka Nádory v dějinném a kulturním kontextu v novověku Tumours in historical and social context in the modern period Disertační práce Školitel / Supervisor: Prof. RNDr. Stanislav Komárek, Dr. Praha, 2017 SUMMARY: The PhD thesis called Tumours in historical and social context in the modern period is an attempt to describe a change of medical thinking in modern period; science and medicine turns from antique humoral pathology, explaining all diseases as an imbalance of the four body humours, to pathological anatomy and experimental physiology. In the point of view of pathological anatomy, the viscera of diseased person are no more "screen" or "mirror" of the disease, but it becomes directly the "stage" or "theatre" of the acting disease. This shift in the thought may be labelled as movement from humoralism to localism or ontologism; the disease isn't just abnormal amount of some natural juice any more, but becomes new original entity. This change undergoes the understanding of tumours and cancerous disease as well. Instead of antique understanding tumours as precipitates of black bile, the cell theory occurs in the 19th century. This theory explains tumours as a mass of cells undergoing excessive...
4

Dějiny patologické anatomie (17.-19. století) / History of Pathological Anatomy (17th.-19th. Centuries)

Liepoldová, Tereza January 2016 (has links)
This thesis concisely describes transformation of medical way of thinking in Eu- rope from hippocrato-galenic tradition to anatomo-pathological understanding of human body. It aims to trace conditions, that allowed rise of organic and later tissual pathology. Thesis also shows ideological shift in medical thinking concer- ning localization faculties of soul (shift from so called ventricular paradigm to localization faculties of soul into solid parts of brain). These ideas also affected reception of causes of mental illness. 1

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