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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.
11

Molecular analyses of alpha 1-antitrypsin variation and deficiency / by Mark D. Holmes.

Holmes, Mark D. (Mark Derek) January 1992 (has links)
Bibliography: leaves 161-213. / xviii, 219, [48] leaves of plates : / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Analyses of six rare alpha 1-antitrypsin alleles were undertaken to determine their molecular basis, assess the biosynthesis directed by these alleles and, examine their clinical correlation. / Thesis (M.D.)--University of Adelaide, Dept. of Medicine, 1992
12

An Analysis of Post Lung Transplant FEV1 Change in Alpha-1 Antitrypsin Deficiency

Gildea, Thomas R. 23 January 2010 (has links)
No description available.
13

Increasing Knowledge About Alpha-1 Antitrypsin Deficiency in the Chronic Obstructive Pulmonary Disease Population

Barta, Maureen Ann Wentink 01 January 2015 (has links)
The purpose of the project was to increase awareness about alpha-1 antitrypsin deficiency (AATD) in chronic obstructive pulmonary disease (COPD), particularly among those with a familial history of genetic factor AATD; an additional goal was to understand its relationship to COPD. COPD is the third leading cause of death in the United States, with more than half of COPD patients experiencing significant disabilities. Major causes for COPD include smoking, air pollution, secondary smoke, upper respiratory infections, hereditary factors, occupational factors, environmental factors, and socioeconomic factors. Genetic factors, however, also play a significant role in early onset COPD and in those who smoke and have the genetic factor related to COPD (AATD), symptoms are more severe and exacerbations more frequent. Undiagnosed AATD can result in under treatment and lack of planning for preventing COPD onset and exacerbation in these patients. COPD clients of a local pharmacy (n =31) were invited to complete a Likert survey and given materials on COPD exacerbation prevention and information on AATD. Results indicated that 38.7% of respondents had early onset symptoms, positive family history, and no improvement in symptoms with smoking cessation. The results support that targeting those family members with COPD and providing information on genetic factors for this condition could decrease the frequency and severity of exacerbations. This is in keeping with the health belief model that guided this study in that a perceived risk for harm has the potential to improve the use of preventative health measures in individuals.
14

The Effect of Alpha 1-Antitrypsin on Ischemia-Reperfusion Injury in Lung Transplantation

Gao, Wenxi 20 November 2012 (has links)
Ischemia-reperfusion (IR) injury is a severe complication in lung transplantation characterized by inflammation, alveolar damage, and hypoxemia. Alpha 1-antitrypsin (A1AT), a protease inhibitor, is currently used clinically for the treatment of A1AT deficiency emphysema. A1AT has been shown to have the potential to reduce IR injury through its anti-inflammatory and anti-apoptotic effects. We hypothesized that A1AT will ameliorate IR injury through these effects. We tested A1AT in two models of IR: a cell culture model of simulated lung transplantation and a rat in situ pulmonary ligation model. In cell culture, we found that A1AT exerts its protective effects by inhibiting cell death and inflammatory cytokine release in a dose-dependent manner. In the rat pulmonary ischemia-reperfusion model, we found that A1AT improved lung function by inhibiting apoptosis and inflammation. There is potential for future application of A1AT in the treatment of IR injury in lung transplantation.
15

The Effect of Alpha 1-Antitrypsin on Ischemia-Reperfusion Injury in Lung Transplantation

Gao, Wenxi 20 November 2012 (has links)
Ischemia-reperfusion (IR) injury is a severe complication in lung transplantation characterized by inflammation, alveolar damage, and hypoxemia. Alpha 1-antitrypsin (A1AT), a protease inhibitor, is currently used clinically for the treatment of A1AT deficiency emphysema. A1AT has been shown to have the potential to reduce IR injury through its anti-inflammatory and anti-apoptotic effects. We hypothesized that A1AT will ameliorate IR injury through these effects. We tested A1AT in two models of IR: a cell culture model of simulated lung transplantation and a rat in situ pulmonary ligation model. In cell culture, we found that A1AT exerts its protective effects by inhibiting cell death and inflammatory cytokine release in a dose-dependent manner. In the rat pulmonary ischemia-reperfusion model, we found that A1AT improved lung function by inhibiting apoptosis and inflammation. There is potential for future application of A1AT in the treatment of IR injury in lung transplantation.
16

Increasing Knowledge About Alpha-1 Antitrypsin Deficiency in the Chronic Obstructive Pulmonary Disease Population

Barta, Maureen Ann Wentink 01 January 2015 (has links)
Walden University College of Health Sciences This is to certify that the doctoral study by Maureen Barta has been found to be complete and satisfactory in all respects, and that any and all revisions required by the review committee have been made. Review Committee Dr. Cheryl Holly, Committee Chairperson, Health Services Faculty Dr. Eric Anderson, Committee Member, Health Services Faculty Dr. Vincent Hall, University Reviewer, Health Services Faculty Chief Academic Officer Eric Riedel, Ph.D. Walden University 2015 â?? Increasing Knowledge About Alpha-1 Antitrypsin Deficiency in the Chronic Obstructive Pulmonary Disease Population by Maureen Ann Wentink Barta MSN, Pacific Lutheran University, 1996 BSN, Pacific Lutheran University, 1992 Project Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Nursing Practice Walden University November 2015 â?? The purpose of the project was to increase awareness about alpha-1 antitrypsin deficiency (AATD) in chronic obstructive pulmonary disease (COPD), particularly among those with a familial history of genetic factor AATD; an additional goal was to understand its relationship to COPD. COPD is the third leading cause of death in the United States, with more than half of COPD patients experiencing significant disabilities. Major causes for COPD include smoking, air pollution, secondary smoke, upper respiratory infections, hereditary factors, occupational factors, environmental factors, and socioeconomic factors. Genetic factors, however, also play a significant role in early onset COPD and in those who smoke and have the genetic factor related to COPD (AATD), symptoms are more severe and exacerbations more frequent. Undiagnosed AATD can result in under treatment and lack of planning for preventing COPD onset and exacerbation in these patients. COPD clients of a local pharmacy (n =31) were invited to complete a Likert survey and given materials on COPD exacerbation prevention and information on AATD. Results indicated that 38.7% of respondents had early onset symptoms, positive family history, and no improvement in symptoms with smoking cessation. The results support that targeting those family members with COPD and providing information on genetic factors for this condition could decrease the frequency and severity of exacerbations. This is in keeping with the health belief model that guided this study in that a perceived risk for harm has the potential to improve the use of preventative health measures in individuals.
17

Novel application of gene therapy and somatic stem cells in treating metabolic liver disorders

Witek, Rafal Piotr, January 2005 (has links)
Thesis (Ph.D.)--University of Florida, 2005. / Typescript. Title from title page of source document. Document formatted into pages; contains 127 pages. Includes Vita. Includes bibliographical references.
18

Three missense variants of metabolic syndrome-related genes are associated with alpha-1 antitrypsin levels / 3つの代謝症候群関連遺伝子にみられるミスセンス変異は、α1アンチトリプシン量に関連する

Setoh, Kazuya 25 January 2016 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(医学) / 甲第19402号 / 医博第4053号 / 新制||医||1012(附属図書館) / 32427 / 京都大学大学院医学研究科医学専攻 / (主査)教授 佐藤 俊哉, 教授 小川 誠司, 教授 横出 正之 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM
19

Caracterização das proteínas do saco vitelínico de embriões bovinos Bos indicus / Characterization of the yolk sac proteins of the Bos indicus bovine embryos

Matsumoto, Fabiana Santos 16 March 2007 (has links)
O saco vitelínico é uma das membranas embrionárias que desempenham um papel importante para a sobrevivência inicial do embrião em muitas espécies de mamíferos, além de produzir proteínas necessárias para o desenvolvimento do mesmo. Foram coletados 17 embriões bovinos, em diferentes períodos gestacionais afim de identificar as proteínas alfafetoproteína, alfa- 1 antitripsina e transferrina, presentes no saco vitelínico destes,para tanto realizou-se a técnica de Western Blot com eletroforese em gel de poliacrilamida, SDS-PAGE a 6%. Os géis, após a corrida, foram corados com Comassie blue, e as membranas de nitrocelulose, após a transferência, com Ponceau. Utilizaram-se os anticorpos monoclonal para alfafetoproteína anti-camundongo, monoclonal, receptpr de transferrin anti-camundongo IgG1, e policlonal para alfa- 1 antitripsina anti-coelho como anticorpos primário e conjugado para peroxidase e fosfatase como secundários. A revelação foi do tipo colorimétrica-fosfatase alcalina e por ECL. O saco vitelínico apresentou-se bem desenvolvido até os 50 dias de gestação, onde, a partir desse período o processo de involução está bem caracterizado Em algumas amostras do saco vitelínico detectamos a presença da alfafetoproteina, alfa-1 antitripsina e da transferrina, porém em algumas amostras as bandas estavam fracas, mostrando assim, que os anticorpos reagem com as proteínas bovinas. O fato de aparecerem bandas fracas pode estar relacionado a uma fraca reação cruzada por se tratar de um anticorpo não específico. / In many species of mammals, the yolk sac is one of the embrionary membranes that plays an important role in the embryo´s initial survival, as well as, in the manufacturing of the necessary proteins for its development. In order to identify the proteins: alfafetoprotein, alfa 1 - antitrypsin, and transferrin present in the cow´s embryo´s yolk sac, 17 bovine embryos were collected in different pregnancy periods. This procedure was performed by Western Blot Technique with a polyacrylamide gel electrophoresis, SDS-PAGE, at 6%. Gels following the electrophoresis, where tainted with Comassie blue, and the membranes of Nitrocellulose, following their transference (the proteins that were present in the gel go to the membrane), with Ponceau. Monoclonal Antibody mouse anti human α-fetoprotein, alphafetoprotein mouse monoclonal antibody, transferrin receptor mouse IgG1, and rabbit polyclonal to alpha 1 antitrypsin were used as primary antibodies, and Peroxidase labelled antimouse e Peroxidase labelled antirabbit e anti-mouse IgG- Alkaline Fosfatase as secundary ones. The membrane´s revelation was of the alcaline fosfatase colormetric type and by ECL. The yolk sac was presented well developed until the 50 days of gestation, where to break of this period the involution process well it is characterized. In some of the yolk sac samples we detected the presence of alfafetoprotein, alfa 1- antitrypsin, and transferrin, however, the bands in some specimens (samples) were weak, demonstrating that the antibodies react with the bovine proteins. The fact that weak bands appeared might be related to a weak cross reaction since we are dealing with a non specific antibody.
20

Perfil proteico do fluido folicular durante a foliculogênese da égua / Protein profile of follicular fluid during folliculogenesis of the mare

Rocha, Bianca do Prado Lima Petrucci January 2014 (has links)
O fluido folicular (FF) é um líquido extracelular complexo que se acumula no antro dos folículos ovarianos durante o seu desenvolvimento. É o meio essencial para o crescimento e a maturação das células ovarianas somáticas e germinativas e contém substâncias envolvidas na diferenciação celular, maturação do oócito, qualidade do gameta, ruptura da parede folicular e luteinização. O estudo de seus componentes é fundamental para um melhor entendimento dos mecanismos que envolvem a dinâmica folicular na espécie equina. O objetivo deste trabalho foi comparar o perfil proteico do maior folículo, e entre o maior e o segundo maior folículo, em diferentes momentos do desenvolvimento folicular. Para este estudo, quarenta ovários, oriundos de vinte éguas Crioulas, não gestantes e cíclicas, foram coletados durante a estação reprodutiva, em um abatedouro. Antes do abate, as éguas foram divididas em quarto grupos de acordo com o diâmetro folicular, ecotextura uterina (EU) e presença de corpo lúteo (CL): G 15 (emergência) (n = 3) folículos até 15 mm, EU ≥ 1, CL ≥ 20 mm; G 20 (divergência) (n = 9) folículos entre 20 e 25 mm, EU 1-2, CL 15-20 mm; G 30 (dominância) (n = 4) folículos entre 30 e 35 mm, EU ≥ 2, CL ≤ 15 mm; G 40 (pré-ovulatória) (n = 4) folículos ≥ 40 mm, EU 2-3, CL ≤ 15 mm. Após o abate, os ovários foram coletados e o FF dos dois maiores folículos foi aspirado. A técnica de 2D-PAGE foi realizada, em duplicata, utilizando gel de acrilamida a 12%. Os géis foram corados com Comassie Brilliant Blue R-250, escaneados e analisados, utilizando o PDQuest software, para determinar a densidade óptica dos spots. A identificação proteica foi realizada através de espectometria de massa (MS). Um total de 43 spots foi observado. Sete spots, representando cinco proteínas (albumina, apolipoproteína A-1, gelsolina, transferrina e α-1-antiproteinase 2), apresentaram diferenças (P˂0,05) na expressão, no FF do maior folículo, nos diferentes grupos. Um spot, representado pela proteína POMZP3, demonstrou diferença (P=0,018) em sua expressão, entre o maior e o segundo maior folículo, nos diferentes grupos. E, por fim, um spot, identificado como a proteína α-1-antiproteinase 2, apresentou interação (P=0,047) entre o maior e o segundo maior folículo e as diferentes fases da foliculogênese. Os resultados deste trabalho demonstram que o perfil proteico do FF difere durante o desenvolvimento folicular e que, as maiores alterações, são observadas a partir da dominância. Além disso, provavelmente, algumas destas proteínas, bem como suas correlações, tenham grande importância nos eventos que ocorrem durante a foliculogênese. / The follicular fluid (FF) is a complex extracellular fluid that accumulates in the antrum follicles during the follicular development. It is the essential medium for the growth and maturation of somatic and germ ovarian cells and contains substances involved in cell differentiation, oocyte maturation, gamete quality, rupture of the follicle wall and luteinization. The study of its components is crucial for a better understanding of the mechanisms involved in follicular dynamics in mares. The objective of this study was to determine the protein profile of the largest follicle and among the largest and the second largest follicle at different stages of follicular development. In this study, 40 ovaries from 20 non pregnant Criollo cycling mares were collected during the breeding season in an abattoir. Before slaughter, the mares were divided into four groups according to follicular diameter, uterine ecotexture (UE) and the presence of corpus luteum (CL): G 15 (emergence) (n = 3), follicles up to 15mm, EU ≥ 1, CL ≥ 20 mm; G 20 (deviation) (n = 9), follicles between 20 and 25 mm, EU 1-2, CL 15-20 mm; G 30 (dominance) (n = 4), follicles between 30 e 35 mm, EU ≥ 2, CL ≥15 mm; G 40 (ovulation) (n = 4), follicles ≥ 40 mm, EU 2-3, CL ≥ 15 mm. After slaughter, the ovaries were collected and the FF of the two largest follicles was aspirated. The technique of 2D-PAGE was performed in duplicate using 12% acrylamide gel. Gels were stained with Comassie Brilliant Blue R-250, scanned and analyzed using the PDQuest software to determine the optical density of the spots. Protein identification was performed by mass spectrometry (MS). A total of 43 spots was observed. Seven spots representing five proteins (albumin, apolipoprotein A-1, gelsolin, transferrin e α-1-Antitrypsin 2) showed differences (P˂0.05) in expression, the FF of the largest follicle in the different groups. One spot, represented by POMZP3 protein showed a difference (P=0.018) in expression between the largest and second largest follicle in the different groups. Finally, one spot, identified as the protein α-1-antitrypsin 2, showed interaction (P=0.047) between the largest and second largest follicle. The results of this study demonstrated that the protein profile of FF differs during follicular development and that the largest changes are observed from the dominance. Also probably some of these proteins, as well as their correlations, have great importance in the events that occur during folliculogenesis.

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