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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric cardiology 20 (1999), S. 103-107 
    ISSN: 1432-1971
    Keywords: Key words: Supravalvular aortic stenosis — William's syndrome — Elastin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Characterization of the molecular basis of structural cardiac disease includes elucidating the pathogenesis of certain vascular disease by demonstrating mutations of the Elastin gene as the cause of familial supravalvular aortic stenosis (SVAS) and Williams' syndrome (WS). Defining the etiology of SVAS has clinical implications in terms of prenatal and presymptomatic diagnosis and possible earlier intervention with medical therapy. This review considers the evidence relating Elastin mutations to SVAS and WS and outlines the possible mechanisms by which these mutations give rise to cardiac disease. Finally, the implications which Elastin mutation identification has on current clinical practice and future research directions are considered.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0428
    Keywords: Keywords Insulin-dependent diabetes mellitus; polymerase chain reaction ; diabetic nephropathy ; angiotensinogen ; angiotensin converting enzyme ; gene polymorphism.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Premature cardiovascular disease is common in insulin-dependent diabetic (IDDM) patients who develop diabetic nephropathy. Genetic polymorphism within the renin-angiotensin system has been implicated in the aetiology of a number of cardiovascular disorders; these loci are therefore candidate genes for susceptibility to diabetic renal disease. We have examined the angiotensin converting enzyme insertion/deletion polymorphism and angiotensinogen methionine 235 threonine polymorphism in a large cohort of Caucasian patients with IDDM and diabetic nephropathy. Patients were classified as having nephropathy by the presence of persistent dipstick positive proteinuria (in the absence of other causes), retinopathy and hypertension (n = 242). Three groups were examined for comparison: ethnically matched non-diabetic subjects (n = 187); a geographically defined cohort of newly diagnosed diabetic patients (n = 341); and IDDM patients with long duration of disease ( 〉 15 years) and no evidence of overt nephropathy (n = 166). No significant difference was seen in distribution of angiotensin converting enzyme or angiotensinogen genotypes between IDDM patients with nephropathy and recently diagnosed diabetic subjects (p = 0.282 and 0.584, respectively), nor the long-duration non-nephropathy diabetic subjects (p = 0.701 and 0.190, respectively). We conclude that these genetic loci are unlikely to influence susceptibility to diabetic nephropathy in IDDM in the United Kingdom. [Diabetologia (1996) 39: 1108–1114]
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0428
    Keywords: Keywords Type I diabetes ; diabetic nephropathy ; human leucocyte antigen ; insulin gene.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Aims/hypothesis. Diabetic nephropathy seems to have a strong genetic component. Genes involved in the genetic susceptibility to Type I (insulin-dependent) diabetes have been suggested to have a role in the development of diabetic nephropathy. This study aimed to examine the role of human leucocyte antigen and insulin genes in susceptibility to nephropathy in patients with Type I diabetes. Methods. We carried out a genetic association study examining insulin gene polymorphisms using three large cohorts of patients with Type I diabetes: nephropathy (n = 258), long duration non-nephropathy (n = 153) and a recently diagnosed (sporadic) diabetic cohort (n = 264). Human leucocyte antigen typing results were obtained in a smaller number due to assay failures (n = 182, 126 and 200 respectively). Results. No significant difference was seen in the distribution of human leucocyte antigen A, B, C, DR, DQA1 and DQB1 haplotypes and alleles between the three diabetic cohorts. No significant difference was seen in insulin ’ + ' and ’–' genotypes and alleles between the three diabetic cohorts. Conclusion/interpretation. Human leucocyte antigen and insulin gene loci are unlikely to have a major role in the susceptibility to nephropathy in Caucasian patients with Type I diabetes in the United Kingdom. [Diabetologia (1999) 42: 1017–1020]
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0428
    Keywords: Insulin-dependent diabetes mellitus ; polymerase chain reaction ; diabetic nephropathy ; angiotensinogen ; angiotensin converting enzyme ; gene polymorphism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Premature cardiovascular disease is common in insulin-dependent diabetic (IDDM) patients who develop diabetic nephropathy. Genetic polymorphism within the renin-angiotensin system has been implicated in the aetiology of a number of cardiovascular disorders; these loci are therefore candidate genes for susceptibility to diabetic renal disease. We have examined the angiotensin converting enzyme insertion/deletion polymorphism and angiotensinogen methionine 235 threonine polymorphism in a large cohort of Caucasian patients with IDDM and diabetic nephropathy. Patients were classified as having nephropathy by the presence of persistent dipstick positive proteinuria (in the absence of other causes), retinopathy and hypertension (n=242). Three groups were examined for comparison: ethnically matched non-diabetic subjects (n=187); a geographically defined cohort of newly diagnosed diabetic patients (n=341); and IDDM patients with long duration of disease (〉15 years) and no evidence of overt nephropathy (n=166). No significant difference was seen in distribution of angiotensin converting enzyme or angiotensinogen genotypes between IDDM patients with nephropathy and recently diagnosed diabetic subjects (p=0.282 and 0.584, respectively), nor the long-duration non-nephropathy diabetic subjects (p=0.701 and 0.190, respectively). We conclude that these genetic loci are unlikely to influence susceptibility to diabetic nephropathy in IDDM in the United Kingdom.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 12 (1998), S. 394-399 
    ISSN: 1432-2218
    Keywords: Key words: Pregnancy — Pancreatitis — Gallstones — Sphincterotomy — Cholecystectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Gallstones are the most common cause of acute pancreatitis during pregnancy. Without intervention, gallstone pancreatitis during pregnancy is associated with an antepartum recurrence rate of 70%, which exposes the mother and fetus to an increased risk of morbidity and mortality. A safe, effective means to prevent recurrent gallstone pancreatitis during pregnancy is desirable. Methods: Since 1991, we have managed gallstone pancreatitis in three pregnant patients with endoscopic retrograde cholangiogram (ERC), followed by spincterotomy, despite the absence of common bile duct stones. Results: All patients were judged to have mild pancreatitis by modified Ranson criteria and the Multiorgan System Failure criteria. During cholangiogram, fetal shielding was employed and fluoroscopy times ranged from 36 s to 7.2 min. One patient experienced postprocedure pancreatitis of 48-h duration. None of the patients experienced further episodes of pancreatitis and none underwent predelivery cholecystectomy. Conclusions: In pregnancy-associated gallstone pancreatitis, endoscopic sphincterotomy prevents recurrence of pancreatitis and the need for cholecystectomy during gestation. We believe endoscopic sphincterotomy represents a promising management alternative for gallstone pancreatitis during pregnancy. Further investigation is warranted.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 14 (1995), S. 1034-1036 
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-7438
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Une evaluation de l'efficacité de la vaccination de poussins d'un jour à l'aide des souches Blackburg (B1) du virus de la maladie de Newcastle, suivie à différents moments par la vaccination à l'aide de la souche Komarov (K), a été entreprise. Les anticorps furent détéctés par inhibition de l'hemagglutination (HAI), une semaine après la vaccination avec la souche B1 et le titre atteignit un pic à 3 semaines pour décliner jusqu'à des niveaux indétectables à neuf semaines. A la suite de vaccinations consécutives avec la souche K à cinq, sept ou huit semaines, les niveaux d'anticorps HAI furent détectés après trois semaines. Les oiseaux vaccinés à sept semaines furent examinés pour les anticorps et la résistance à une épreuve au delà de 19 semaines d'âge. Dans ce groupe les titres HAI sont restés constants (80 à 640) jusqu'à l'àge 32 semaines, puis ont diminué régulièrement jusqu'à 10 à 20 à l'âge de 44 semaines. Une relation linéaire entre le titre HAI et l'index de neutralisation du virus (VNI) a été démontrée sur une gamme de sérums choisis. Seuls les oiseaux ayant un titre HAI de 80 ou plus ont résisté à l'épreuve artificielle. On recommande que, après une vaccination B1 à un jour, et une vaccination K à l'âge de sept semaines, une revaccination K soit réalisée à des intervalles n'excédant pas sept mois.
    Abstract: Resumen Se llevó a cabo una evaluación de la eficacia de la vacunación de pollitos de un día, con la cepa Blacksburg (B1) del virus de la enfermedad de Newcastle, seguida de varias aplicaciones vacunales periódicas con la cepa Komarov (K). Se detectaron anticuerpos mediante la prueba de inhibición de la hemaglutinación, una semana después de la vacunación con B1, los títulos alcanzando el pico a las tres semanas y declinaron a niveles no detectables a las nueve semanas. Después de aplicaciones vacunales periódicas con la cepa K, a las cinco, siete u ocho semanas de edad, se detectaron anticuerpos mediante la prueba de inhibición de la hemaglutinación (títulos 80 a 640), después de tres semanas. Las aves vacunadas a las siete semanas, recibieron una descarga y se les hizo prueba de anticuerpos, después de las 19 semanas de edad. En este grupo los títulos de anticuerpos permanecieron constantes (80 to 640) hasta las 32 semanas de edad y después declinaron lentamente a 10 ó 20 a las 44 semanas de edad. Se demostró una relación lineal entre los títulos hallados y el índice viral neutralizante, en un rango de sueros seleccionados. Solamente las aves con títulos de 80 o más altos resistieron la descarga artificial. Se recomienda que, seguidamente a la vacunación con B1 a un día de edad y con K a las siete semanas, las revacunaciones con la cepa K debería hacerse con intervalos de no más de siete meses.
    Notes: Summary An evaluation was undertaken of the efficacy of vaccination of day-old chicks with the Blacksburg (B1) strain of Newcastle disease virus (NDV) followed at various times by vaccination with the Komarov (K) strain. Antibody was detected by the haemagglutination inhibition (HAI) test one week after vaccination with B1 and titres peaked at three weeks and had declined to undetectable levels by nine weeks. After subsequent vaccination with K strain at five, seven or eight weeks of age levels of HAI antibody (titre 80 to 640) were detected after three weeks. Birds vaccinated at seven weeks were tested for antibody and resistance to challenge beyond 19 weeks of age. In this group the HAI titres remained constant (80 to 640) up to 32 weeks of age and then steadily declined to 10 to 20 at 44 weeks of age. A linear relationship between HAI titre and virus neutralising index (VNI) was demonstrated with a range of selected sera. Only birds with an HAI titre of 80 or greater resisted artificial challenge. It is recommended that, following B1 vaccincation at day-old and K vaccination at seven weeks old, revaccination with K strain should be performed at intervals of not more than seven months.
    Type of Medium: Electronic Resource
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