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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.
71

The spaces within : a Foucaudian analysis of organ donation discourses / Gay Greenwood.

Greenwood, Gay (Barbara Gay) January 1999 (has links)
Bibliography : leaves 273-293. / iv, 293 leaves ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / A study, from a Foucauldian perspective, of the discourses that surround organ donation and transplantation. / Thesis (Ph.D.)--University of Adelaide, Dept. of Clinical Nursing, 2000?
72

Síntese e avaliação farmacológica de pró-fármacos derivados do ácido micofenólico úteis na prevenção e no tratamento da rejeição de transplantes

Barbieri, Karina Pereira [UNESP] 11 June 2014 (has links) (PDF)
Made available in DSpace on 2016-02-05T18:29:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-06-11. Added 1 bitstream(s) on 2016-02-05T18:33:59Z : No. of bitstreams: 1 000854046.pdf: 1970431 bytes, checksum: a29a47eeb44d6d6a90258f9d36ebbdf4 (MD5) / Uma das aplicações da terapia imunossupressora é evitar que ocorra rejeição em situações de transplante de órgãos e auxiliar na sobrevida dos indivíduos. O ácido micofenólico (A.M.) é um imunossupressor de caráter anti-proliferativo, inibidor da inosina 5-monofosfato desidrogenase, porém, apresenta baixa biodisponibilidade oral e por isso na terapêutica utiliza-se o seu pró-fármaco: micofenolato de mofetila. Este trabalho teve como objetivo a síntese de pró-fármacos mútuos do ácido micofenólico ligados a derivados ftalimídicos a fim de garantir-lhe melhorias farmacocinéticas e farmacodinâmicas. Os derivados ftalimídicos encontrados na estrutura de compostos, por exemplo, na talidomida, utilizada em doenças auto-imunes, agem como imunossupressores por inibição de citocinas pró-inflamatórias. Os pró-fármacos foram obtidos com rendimentos que variaram entre 40-53%. As novas moléculas foram caracterizadas utilizando métodos analíticos como ressonância magnética nuclear (RMN), espectrometria na região de infravermelho e espectrometria de massas. Além disso, o coeficiente de partição (log P) foi determinado pelo método de HPLC e usando os programas de Chem Draw® Ultra e AlogPS®.O log P experimental dos derivados apresentou valores entre 2,29 e 4,09. Avaliou-se a citotoxicidade, liberação óxido nítrico (NO) e de citocinas (IL-1β e TNF-α) usando linhagens celulares de macrófagos murinos. A genotoxicidade in vivo foi avaliada usando o teste de micronúcleo. Todos os compostos apresentaram viabilidade celular superior a 70% nas concentrações usadas. O pró-fármaco (E)-2-(1,3-dioxoisoindolin-2-il) etil6-(4-hidroxi-6-metóxi-7-metil-3-oxo-1,3-dihidroisobenzofuran-5-il)-4-metilhex-4-enoato (3a) apresentou valores de IC50 de 200 μM. Na avaliação da inibição de TNF-α todos os pró-fármacos apresentam atividade nas concentrações utilizadas... / One of the applications is immunosuppressive therapy to prevent rejection occurs in situations of organ transplantation and assist in the survival of individuals. Mycophenolic acid (MA) is an immunosuppressive anti -proliferative character inhibitor of inosine 5 -monophosphate dehydrogenase but has a low oral bioavailability and therefore therapeutic uses is the prodrug thereof: mycophenolate mofetil. This work aimed at the synthesis of mutual prodrugs of mycophenolic acid derivatives linked to ftalimidic to ensure you Pharmacokinetic and pharmacodynamic improvements. The ftalimdic derived from compounds found in the structure, for example in thalidomide used in autoimmune diseases, they act as immunosuppressants by inhibiting pro-inflammatory cytokines. The prodrugs were obtained with yields ranging from 40-53 %. The new molecules were characterized using analytical methods such as nuclear magnetic resonance (NMR) spectroscopy in the infrared region and mass spectrometry. In addition, the partition coefficient (log P) was determined by HPLC method using programs Chem Draw Ultra ® and AlogPS ®. Experimental log P of the derivatives showed values between 2.29 and 4.09. Cytotoxicity was assessed, the release nitric oxide (NO) and cytokines (IL- 1β and TNF- α) using murine macrophage cell lines. The in vivo genotoxicity was assessed using the micronucleus test. All compounds showed cell viability above 70 % in the concentrations used. The prodrug (E) -2 - (1,3- dioxoisoindolin -2- yl) etil 6 -(4 -hydroxy- 6-methoxy -7-methyl -3-oxo -1,3- dihydroisobenzofuran -5- yl) 4- methylhex -4- enoate ( 3a ) showed IC50 values of 200 mM . In evaluating the inhibition of TNF- α all prodrugs exhibit activity at the concentrations used were the most active, and 3a (E) - (1,3- dioxoisoindolin -2- yl) methyl 6 - (4 -hydroxy -6- methoxy -7-methyl -3-oxo -1,3- dihydroisobenzofuran -5-yl )-4 -methylhex- 4-enoate (3c) with IC50 values of 18.75 mM . In ...
73

Bevordering van kommunikasie en samewerking tussen oorplantingskoördineerders en intensiewesorgverpleegkundiges tydens die orgaanskenkingsproses

Naudé, Annette 11 September 2012 (has links)
M.Cur. / Various factors influence the process of organ donation. As a result there is a shortage of organs for transplant. Poor communication and cooperation between transplant coordinators and intensive care nursing staff can lead to the non-referral of potential organ donors, which is detrimental to the process. The purpose of the research is to ascertain the attitude and knowledge of the transplant coordinators and intensive care nursing staff who work in intensive care units during organ donation and to draw up guidelines for the improvement of communication and cooperation between them. Contextual descriptive research was done by compiling literature based questionnaires, one each for the transplant coordinators and intensive care nursing staff and then analysing responses. The indications are that problem areas exist between the role players in the organ transplant process. This results in the insufficient referrals from intensive care units which are detrimental to the organ donation process. From this research, the following guidelines can be drawn up to promote organ donation: To provide a policy manual regarding organ donation for every intensive care unit. The respective roles of the transplant coordinator and intensive care nursing staff in the organ donation process must be clarified. Awareness campaigns should be held to promote organ donation. Feedback should be given by transplant coordinators and intensive care nursing staff regarding transplant occurrences. Role models in practical situations should be identified. An education programme regarding organ donation should be implemented. Emotional support programmes should be available to health personnel.
74

Healing Transcendence: Social Media Use by Persons in the Transplant Journey

Unknown Date (has links)
An increasing number of individuals are looking for health information, interacting with health care providers, and participating in health-related online support groups The virtual landscape of the internet offers the opportunity for individuals to establish contact and relationships with persons having similar health concerns anywhere, anytime The phenomenon of health-related social media use generated an interest in why persons in the transplant journey chose to participate in an online support community, how they interacted and made use of the online community, and how this knowledge could assist nursing in improving care for this growing population A six month sample of internet postings from an international transplant-related social media site was analyzed using an inductive qualitative content analysis adapted from Graneheim and Lundman (2003) within the theoretical lens of Unitary Caring Science (Smith, 1999) The study provided a unique perspective of how members used the social media support group The synthesis of four pandimensional interconnected patterns, expressing emotions, sharing experiences, exchanging information, and offering reciprocal support lead to a theme of being known and understood Healing transcendence emerged as a unitary transformative metatheme that reflected the holistic nature of the member interaction in the online support experience / Includes bibliography / Dissertation (PhD)--Florida Atlantic University, 2016 / FAU Electronic Theses and Dissertations Collection
75

An injury surveillance of patients utilising the Durban University of Technology (DUT) Chiropractic Treatment Facilities at the 2013 World Transplant Games

McBean, Michael John 06 1900 (has links)
Submitted in partial compliance with the requirements for the Master’s Degree in Technology: Chiropractic, Durban University of Technology, Durban, South Africa, 2015. / Background: The 19th Iteration of the World Transplant Games was hosted in Durban, South Africa in 2013. This biennial, international, multisport event showcases the talents of transplant athletes, whilst demonstrating the benefits of organ transplantation. To date, limited research is available on transplant athletes. This study aimed to determine the injury profile of transplant athletes who presented to the Durban University of Technology Chiropractic Treatment Facilities during the 2013 World Transplant Games. Methods: This retrospective, descriptive cohort study analysed the data collected at the Chiropractic Treatment Facilities at the 2013 World Transplant Games. For inclusion, each WTG Form required completion, reflecting all the elements of that participant’s chiropractic consultation. The data recorded on the World Transplant Games Form generated the data analysed in this study. The data described the frequency (frequency tables), nature and management of injuries treated at the Chiropractic Treatment Facilities during the 2013 World Transplant Games. In order to determine relationships cross tabulations were used. Results: There were 964 athletes registered for the 2013 World Transplant Games, of which 153 presented to the Chiropractic Treatment Facilities (an utilisation rate of 15.9%). A total of 259 consultations by the athletes (n = 223; 86.1%) and non-athletes (n = 36; 13.9%) were recorded. The majority of the treated athletes were White (n = 91; 59.5%), males (n = 109; 71.2%), in which kidney transplant recipients accounted for 37.3% (n = 58) of the total number. Track athletics had the highest injury rate (34.5% of all reported injuries). Athletes sustained injuries to 14 different anatomical regions, with the thigh (26.9%) and shin/calf (20.5%) being the most frequently injured. The majority of injuries (n = 164; 66.4%) were “overuse” injuries, with myofasciitis, muscle strains and thoracic facet syndrome being the most frequently obtained diagnoses (25.5%, 16.6% and 6.5% respectively). The most frequently employed treatment modalities were those of massage (32.1%), ischemic compression (16.3%) and manipulation (13.4%). It was noted that the most injuries sustained (88.3%) were not severe enough to result in an inability to continue current or future participation. Conclusions and Recommendations: Transplant recipient athletes injuries concur with the literature on non-transplant athletes, indicating that solid organ transplantation does not predispose the athlete to different or more serious injuries which would require different management protocols by health care personnel treating these athletes. Further investigation into individual sports is encouraged, to develop accurate, effective injury management and preventative strategies to more appropriately diagnose and treat injuries incurred by transplant athletes and then to prevent them from recurring. An informed healthcare approach towards event organising and athlete treatment will improve preventative strategies and athlete management.
76

An investigation into the functional and psychosocial impact of living organ donation

McGregor, Lesley M. January 2010 (has links)
General Abstract Objective: In April 2006, the Scottish Liver Transplant Unit (SLTU) became the first NHS transplant unit in the UK to offer the option of Living Donor Liver Transplantation (LDLT). This represented a unique opportunity to evaluate the functional and psychosocial impact of LDLT upon healthy donors and their recipients. Subsequent aims were to investigate the challenge of introducing LDLT in Scotland and to establish the perceived deterrents and attractions of the procedure. An additional aim was to evaluate the impact of Living Donor Kidney Transplantation (LDKT) upon donors and recipients. Design: A series of cross sectional and longitudinal studies were designed for the purpose of this thesis (3 quantitative, 2 qualitative, and 1 mixed methods). Method: Self report questionnaires were used in each of the quantitative studies, with the addition of neuropsychological computerized tests in two studies. Semi-structured interviews were employed in the qualitative studies. Main Findings: •Prior to its introduction general support for the option of LDLT was found, although it was highlighted that the risk involved was not well understood by the general public. •Since becoming available LDLT has not been a readily acceptable treatment option from the perspective of patients due to the perceived risk for the donor, but it may be considered as a “last option”. Family members were motivated to save their loved one’s life but the personal implications of donating resulted in reconsideration of LDLT. • Staff at the SLTU perceived a lack of family commitment in relation to LDLT, which is explained as a cultural factor contributing to the slow uptake of LDLT. In Scotland, a donation from a younger to an older generation is not easily accepted. This, in addition to patients’ optimism that a deceased donation will arrive, and the poor health of potential donors, is thought to have affected the uptake of LDLT. As has the unit’s conservative approach to the promotion of LDLT. This approach is the result of a perceived reduction in the need for LDLT and a preference to avoid the risk to a healthy donor and conduct transplants with deceased donations. • In over 3 years, only one couple completed LDLT. The recipient showed functional and psychosocial improvement from pre to post procedure, whilst the donor showed slight deterioration in aspects of quality of life 6 weeks post donation, which did not always completely return to a baseline level by 6 months. The donor made sacrifices to provide her husband with a fresh start to life and unmet expectations were found to effect quality of life. •Willingness to become a liver donor is not thought to be influenced by the frame of the information provided. •Like the LDLT donor, LDKT donors experience some functional and psychosocial deterioration at 6 weeks post donation, but donors largely recover by 6 months post donation. However, the anticipated benefit to recipients was not evident and may not be quantifiable until after 6 months post operation. Conclusion: This thesis has added to current knowledge on living organ donation and specifically represents the first psychological evaluation of a UK LDLT programme. The slow uptake of LDLT was unexpected and has resulted in informative, novel research.
77

Internal organization and functional regulation of intrastriatal striatal transplants a study using in situ hybridization histochemistry and intracerebral microdialysis in the excitotoxically lesioned and grafted rat striatum /

Campbell, Kenneth, January 1994 (has links)
Thesis (Ph. D.)--University of Lund, 1994. / Published dissertation. Includes bibliographical references.
78

Internal organization and functional regulation of intrastriatal striatal transplants a study using in situ hybridization histochemistry and intracerebral microdialysis in the excitotoxically lesioned and grafted rat striatum /

Campbell, Kenneth, January 1994 (has links)
Thesis (Ph. D.)--University of Lund, 1994. / Published dissertation. Includes bibliographical references.
79

Uso de triancinologia subconjuntival no tratamento da rejeição endotelial do transplante de cornea / Subconjuntival triamcinolone use in the treatment of endothelial corneal allograff rejection

Costa, Dacio Carvalho 13 August 2018 (has links)
Orientador: Newton Kara-Jose / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas / Made available in DSpace on 2018-08-13T21:12:46Z (GMT). No. of bitstreams: 1 Costa_DacioCarvalho_D.pdf: 11382661 bytes, checksum: a5c3e2c591c002085753bfe5397e34f3 (MD5) Previous issue date: 2009 / Resumo: Objetivo: Comparar a eficácia da injeção subconjuntival de 20 mg de triancinolona associada a prednisolona 1% tópica com a injeção intravenosa de 500 mg de metilprednisolona associada a prednisolona 1% tópica no tratamento da rejeição endotelial de transplante de córnea. Métodos: Estudo caso-controle realizado no Hospital das Clínicas da UNICAMP. Os pacientes submetidos a transplante penetrante de córnea que apresentaram primeiro episódio de rejeição endotelial com até 15 dias do início dos sintomas durante o período de novembro de 2005 a outubro de 2006 foram tratados com injeção subconjuntival de 20 mg de acetonido de triancinolona associado a acetato de prednisolona 1% tópico. Estes pacientes foram pareados por idade e diagnóstico com pacientes submetidos a tratamento com injeção intravenosa de 500 mg de succinato sódico de metilprednisolona associado a acetato de prednisolona 1% tópico e analisados quanto à capacidade de reversão do episódio de rejeição, pressão intraocular aos 30 dias e acuidade visual ao final de 1 ano. Resultados: 16 pacientes foram tratados com 20 mg de triancinolona subconjuntival e prednisolona 1% tópica durante o período de recrutamento e foram pareados com 16 pacientes tratados com 500 mg de metilprednisolona intravenosa e prednisolona 1% tópica. Ao final de 1 ano, o grupo tratado com triancinolona obteve melhores resultados do que o grupo tratado com metilprednisolona (p=0,025), obtendo 15 pacientes com córnea transparente enquanto o grupo tratado com metilprednisolona obteve 10 pacientes. 3 pacientes do grupo tratado com triancinolona apresentaram segundo episódio de rejeição durante o seguimento e foram retratados com sucesso enquanto no grupo da metilprednisolona, 4 pacientes apresentaram segunda rejeição, com 2 pacientes apresentando falência com o retratamento e 2 obtendo sucesso. A pressão intraocular subiu nos dois grupos (p=0,002) após 30 dias, porém não houve diferença entre os grupos (p=0,433). A acuidade visual melhorou após 1 ano em ambos os grupos (p=0,049) e o grupo tratado com triancinolona obteve melhor acuidade visual (p=0,002). Conclusão: A injeção subconjuntival de 20 mg de triancinolona combinada com prednisolona 1% tópica mostrou-se mais eficaz em reverter episódios de rejeição de transplante de córnea neste estudo caso-controle do que a aplicação intravenosa de 500 mg de metilprednisolona. Estudos adicionais necessitam ser realizados para verificar a segurança e eficácia deste tratamento em grandes populações / Abstract: Purpose: To compare the efficacy of 20 mg subconjunctival triamcinolone in association with topical prednisolone 1% to 500 mg intravenous methylprednisolone in association with topical prednisolone 1% in the treatment of cornea endothelial graft rejection. Methods: Case-control study carried out at State University of Campinas Hospital. Patients submitted to penetrating keratoplasty that presented first episode of corneal endothelial rejection within 15 days of symptoms onset between November 2005 and October 2006 were treated with 20 mg subconjunctival injection of triamcinolone acetate in association with topical prednisolone acetate 1%. These patients were matched for age and diagnosis to patients that were submitted to a single 500 mg intravenous injection of methylprednisolone sodium succinate in association with topical prednisolone acetate 1% and analyzed regarding the reversion of the rejection episode, intraocular pressure at day 30 and visual acuity at the end of 1 year. Results: 16 patients were treated with 20 mg subconjunctival triamcinolone and topical prednisolone 1% during the period of recruitment and were matched to 16 patients treated with 500 mg intravenous methylprednisolone and topical prednisolone 1%. At the end of 1 year, the group treated with triamcinolone had a better outcome than the group treated with methylprednisolone (p=0.025), having 15 patients with clear grafts as the group treated with methylprednisolone had 10 patients. 3 patients from the group treated with triamcinolone had new rejection episodes during follow-up and were retreated successfully as in the group treated with methylprednisolone 4 patients had a new rejection episode, with 2 progressing to failure and 2 to success with retreatment. Intraocular pressure rose in both groups (p=0.002) at day 30 but there were no statistically significant differences between the groups (p=0.433). Visual acuity improved after 1 year in both groups (p=0.049) and the group treated with triamcinolone had better visual acuities (p=0.002). Conclusions: 20 mg subconjunctival injection of triamcinolone acetonide associated with topical prednisolone acetate 1% showed to be more effective than 500 mg intravenous methylprednisolone associated with prednisolone acetate 1% in this case-control study. Further studies need to be accomplished to verify its safety and effectiveness in larger populations / Doutorado / Oftalmologia / Doutor em Ciências Médicas
80

Study of Physiologic and Immunologic Incompatibilities of Pig to Human Transplantation

Chihara, Ray K. January 2014 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / Solid organ transplantation is limited by available donor allografts. Pig to human transplantation, xenotransplantation, could potentially solve this problem if physiologic and immunologic incompatibilities are overcome. Genetic modifications of pigs have proven valuable in the study of xenotransplantation by improving pig to human compatibility. More genetic targets must be identified for clinical success. First, this study examines platelet homeostasis incompatibilities leading to acute thrombocytopenia in liver xenotransplantation. Mechanisms for xenogeneic thrombocytopenia were evaluated using liver macrophages, Kupffer cells, leading to identification of CD18, beta-2 integrin, as a potential target for modification. When disruption of CD18 was accomplished, human platelet binding and clearance by pig Kupffer cells was inhibited. Further, human and pig platelet surface carbohydrates were examined demonstrating significant differences in carbohydrates known to be involved with platelet homeostasis. Carbohydrate recognition domains of receptors responsible for platelet clearance Macrophage antigen complex-1 (CD11b/CD18) and Asialoglycoprotein receptor 1 in pigs were found to be different from those in humans, further supporting the involvement of platelet surface carbohydrate differences in xenogeneic thrombocytopenia. Second, immunologic incompatibilities due to antibody recognition of antigens resulting in antibody-mediated rejection were studied. Identification of relevant targets was systematically approached through evaluation of a known xenoantigenic protein fibronectin from genetically modified pigs. N-Glycolylneuraminic acid, a sialic acid not found in humans, was expressed on pig fibronectin and was identified as an antigenic epitope recognized by human IgG. These studies have provided further insight into xenogeneic thrombocytopenia and antibody-mediated rejection, and have identified potential targets to improve pig to human transplant compatibility.

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