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  • 2005-2009  (3)
  • 2000-2004  (7)
  • 1945-1949  (7)
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  • 1
    Digitale Medien
    Digitale Medien
    Analysis of genomic variability in transgenic sugarcane plants produced by Agrobacterium tumefaciens infection (2005)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 124 (2005), S. 0 
    Details
    ISSN: 1439-0523
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Three transgenic sugarcane populations produced by Agrobacterium tumefaciens infection were analysed for the presence of genomic variability. Plants of the original cultivar, plants regenerated without transformation, as well as transformed and untransformed calli were used as control treatments. Amplified fragment length polymorphism (AFLP) of DNA extracted from leaves or calli assessed genomic profiling. The average DNA polymorphism within each population was determined by calculating the polymorphism index, while the extent of genomic dissimilarity among individual plants within transgenic populations was verified in unweighted pair group method using arithmetic averages dendrograms. The results showed that the production of transgenic sugarcane plants by A. tumefaciens infection is accompanied by limited but detectable genomic changes and that, on average, these occur at the same rate in plant populations carrying different transgenes. Main factors contributing to somaclonal variation in transgenic sugarcane plants have been verified by pre-existing DNA polymorphism into the donor genotype and in vitro culture steps during the transformation procedure. The relevant practical conclusion from this finding is that the AFLP analysis may be effectively used to identify individual transgenic plants with the least genomic deviation from the parental ones. The selected genotype would be conserved as cultivated sugarcane is asexually propagated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1439-0523.2004.01021.x
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  • 2
    Digitale Medien
    Digitale Medien
    Germicides for Army Mobile Laundries (1948)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 40 (1948), S. 2054-2059 
    Details
    ISSN: 1520-5045
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ie50467a010
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  • 3
    Digitale Medien
    Digitale Medien
    New Developments in Army Sea Water Laundering (1949)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 41 (1949), S. 112-119 
    Details
    ISSN: 1520-5045
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ie50469a028
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  • 4
    Digitale Medien
    Digitale Medien
    Inflammatory mediators in exhaled breath, induced sputum and saliva (2005)
    Oxford, UK : Blackwell Science Ltd
    Clinical & experimental allergy 35 (2005), S. 0 
    Details
    ISSN: 1365-2222
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background and Objective Airway inflammation is assessed to monitor progression, control and treatment of asthma. The collection of exhaled breath condensate (EBC) provides a non-invasive alternative to induced sputum samples for the monitoring of airway inflammation. Both samples can be confounded by salivary contamination. The aim of this study was to compare the levels of inflammatory mediators in samples of EBC, induced sputum and saliva samples from subjects with asthma.Method EBC, saliva and induced sputum samples were collected from subjects with asthma (n=10). Total protein, IL-8, 8-isoprostane and surfactant protein A (SPA) were assessed in each sample.Results Total protein, IL-8, 8-isoprostane and SPA were detected in all sputum samples. Only total protein and SPA were consistently measured in EBC, with levels at least 100-fold lower than those measured in induced sputum. In saliva, total protein, SPA and 8-isoprostane were detected in all samples, with IL-8 detected in 60% of samples.Conclusions Induced sputum is a reliable technique that can be used to assess markers of airway inflammation. While EBC is a simple and inexpensive technique to collect lower airway secretions, the detection of inflammatory mediators is variable, and further work is required to validate this technique to assess inflammatory mediators.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2222.2005.02327.x
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  • 5
    Digitale Medien
    Digitale Medien
    Safety of sputum induction with isotonic saline in adults with acute severe asthma (2001)
    Oxford, UK : Blackwell Science, Ltd
    Clinical & experimental allergy 31 (2001), S. 0 
    Details
    ISSN: 1365-2222
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background Sputum induction is a safe and effective technique to study airway inflammation in stable asthma. However, it has the potential to induce bronchospasm and the safety and efficacy of the technique in acute asthma has not been determined.Objective The objective of this study was to evaluate the safety and efficacy of a protocol to induce sputum using isotonic saline in adults with acute exacerbations of asthma.Methods Adults (n = 47) presenting to the emergency room with acute asthma and an FEV1 〉 1.0 L underwent supervised sputum induction with 0.9% saline delivered by an ultrasonic nebuliser. Induction was ceased if there was a fall of 20% or greater from baseline FEV1.Results Subjects had moderate to severe exacerbations of acute asthma. An adequate sputum sample was obtained in 87% of subjects. Four subjects ceased induction because of symptom distress. There was a fall ≥ 20% in 28% of subjects. Bronchoconstriction was successfully reversed by salbutamol in all subjects. Predictors of significant bronchoconstriction were older age, use of ingested corticosteroids, and a requirement for high-dose nebulized salbutamol for the exacerbation. Maintenance long-acting β2-agonist therapy protected against bronchoconstriction during sputum induction.Conclusions Sputum induction in acute asthma using isotonic saline is highly efficacious in obtaining an adequate sputum sample. There is the potential for significant bronchoconstriction to occur but this can be managed safely with minimal discomfort to subjects.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2222.2001.01230.x
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  • 6
    Digitale Medien
    Digitale Medien
    Airway inflammation in thunderstorm asthma (2002)
    Oxford, UK : Blackwell Science Ltd
    Clinical & experimental allergy 32 (2002), S. 0 
    Details
    ISSN: 1365-2222
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background Epidemics of acute asthma associated with thunderstorms occur intermittently worldwide, though airway inflammation during these acute episodes has not been characterized. The aim of this study was to characterize airway inflammation in thunderstorm asthma.Methods Cases were recruited after presentation to the emergency room with acute asthma immediately following a thunderstorm (n = 6). They were compared to two control groups: a group of atopic asthmatics that had presented with acute asthma to the emergency room prior to the thunderstorm (n = 12), and a second group of corticosteroid naïve asthmatics who presented to the emergency room in the prior 12 months (n = 6). Subjects had spirometry, sputum induction and allergy skin tests acutely and at review 4 weeks later.Results Thunderstorm (TS) cases were more likely to have a history of hay fever and grass pollen allergy, and less likely to be on inhaled corticosteroids (ICS) prior to presentation. Cases and control groups had a similar degree of moderate to severe acute airway obstruction (P = 1.0). TS cases had elevated sputum eosinophils (14.8% of total cell count) compared to controls (1%, 2.6%, P 〈 0.01). TS cases had higher sputum eosinophil cationic protein (ECP; 11 686 ng/mL) compared to controls (1883, 3300, P = 0.02) acutely. TS cases had more cells positive for IL-5 (30%) compared to controls (1, 1.5%, P = 0.02). When adjusted for ICS use, TS cases had a risk ratio for elevated sputum eosinophils of 2.4 (1.23–4.69).Conclusion Thunderstorm asthma is characterized by airway inflammation with IL-5-mediated sputum eosinophilia and eosinophil degranulation. These results are consistent with allergen exposure as the cause of the exacerbation, and are consistent with the thunderstorm-induced grass pollen deluge as the cause of epidemic asthma after thunderstorms.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2222.2002.01556.x
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  • 7
    Digitale Medien
    Digitale Medien
    The role of nipple discharge cytology in the diagnosis of breast disease: a study of 1948 nipple discharge smears from 1530 patients (2004)
    Oxford, UK : Blackwell Science Ltd
    Cytopathology 15 (2004), S. 0 
    Details
    ISSN: 1365-2303
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: In this study a review of 1948 nipple discharge (ND) samples from 1530 patients in the age range of 18–83 years was undertaken to determine whether cytological findings from ND smears could provide useful diagnostic information regarding various breast lesions. The study included 1494 females and 36 males and was carried out during a period of 20 years 8 months. The clinical information in all patients was obtained from clinicians (coauthors†), medical records and a review of biopsies in 205 patients who had undergone surgery following the cytodiagnosis. Of the ND samples examined, 1480 were unilateral while 468 were from 234 bilateral ND. The cytodiagnoses were: benign 624, inadequate (despite two to three repeat samples) 492, inflammatory 96, papillary lesion not otherwise specified (NOS) 229, suspicious 22 (21 females, one male) and malignant 67 (63 females, four males). A breast biopsy in the 22 suspicious cases revealed breast carcinoma in 18 cases (females n = 17, male n = 1), atypical ductal hyperplasia (female n = 1), fibroadenoma (female n = 1) and a papilloma in two females. In the 67 cases with a diagnosis of malignancy 65 revealed a breast carcinoma in the biopsy (female n = 62, male n = 3) while one female was diagnosed as fibroadenoma and one male as florid gynaecomastia. In 63 cases (females n = 61; males n = 2) with clinical lumpy areas consistent with the diagnosis of fibrocystic condition in ND, the biopsy confirmed a fibrocystic process. In 53 of 229 cases with ND findings suggestive of a papillary lesion (NOS) the biopsy revealed a papilloma in 41 cases while in 12 cases no lesion was found. In the remaining cases of all the groups only a clinical follow-up and appropriate investigations were performed with no untoward outcome. Based on our study it is felt that cytological examination of ND smears seems to be a reasonably specific method in the diagnosis of malignant and suspicious cases but may be somewhat less specific for other diagnoses.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2303.2004.00169.x
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  • 8
    Digitale Medien
    Digitale Medien
    The production and characterization of monoclonal antibodies to the fungus Aspergillus versicolor (2005)
    Oxford, UK : Munksgaard International Publishers
    Indoor air 15 (2005), S. 0 
    Details
    ISSN: 1600-0668
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Architektur, Bauingenieurwesen, Vermessung , Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1600-0668.2005.00340.x
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  • 9
    Digitale Medien
    Digitale Medien
    Variation in genotype, pathotype and anastomosis groups of Colletotrichum lindemuthianum isolates from Mexico (2003)
    Oxford, UK : Blackwell Science Ltd
    Plant pathology 52 (2003), S. 0 
    Details
    ISSN: 1365-3059
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Patterns of variation were determined in anastomosis, pathotype and genotype of Colletotrichum lindemuthianum samples collected from individual plants of common bean cultivars from four locations in the Mexican highlands. In Chihuahua, 22 polymorphic AFLP bands in isolates taken from a single plant identified five distinct genotypes. In Michoacán, nine genotypes were identified based on a total of only six polymorphic bands. Combined cluster analysis of all isolates from individual plants grouped them geographically. In Chihuahua, in isolates from 16 individual plants, only nine genotypes were identified and all samples were found to belong to the same anastomosis group. However, analysis of selected isolates revealed two new pathotypes not reported previously from Chihuahua (races 449 and 467). In contrast, in Michoacán all 13 isolates from individual plants were found to have distinct genotypes, and in Mexico State only two pairs of isolates among 20 samples had identical genotypes. Although no pathotype variation was determined, five anastomosis groups were identified in Michoacán and three in Mexico State. These results suggest that patterns of variation in genotype and anastomosis groups are complex in the different locations sampled, and that no strong relationship exists between genotype, pathotype or anastomosis group.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-3059.2003.00808.x
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  • 10
    Digitale Medien
    Digitale Medien
    Observer variability in the Goseki grouping of gastric adenocarcinoma in resection and biopsy specimens (2003)
    Oxford, UK : Blackwell Science Ltd
    Histopathology 42 (2003), S. 0 
    Details
    ISSN: 1365-2559
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Aims:  The Goseki grouping of gastric adenocarcinoma has been suggested as a possible prognostic factor. In those centres where it is used, it may be valuable to assess the Goseki grouping of a tumour on the initial diagnostic biopsy as well as on the resection specimen since it may in theory influence management. We examined the robustness of Goseki grouping of gastric adenocarcinoma in representative sections from resection and biopsy specimens in order to assess the consistency of agreement among a group of pathologists.Methods:  A single representative block from 100 gastric resection specimens was studied using a haematoxylin and eosin and mucin (alcian blue/periodic acid–Schiff) stain. These were circulated in batches to members of a group of 12 pathologists who each completed a simple proforma confirming the presence of carcinoma and assigning a Goseki group. In a second circulation the diagnostic biopsy specimen taken prior to resection was examined in the same way. This allowed comparison of the Goseki group of the biopsy and resection specimens.Results:  In both studies κ statistics showed good agreement on tubular differentiation of the carcinoma, but only moderate agreement for the intracellular mucin production, resulting in moderate agreement for the final Goseki group. Correlation between the Goseki group assigned on the biopsy and resected specimens was seen in 62% of the cases. However, the reproducibility was low (κ 0.375).Conclusions:  The Goseki grouping of resected gastric adenocarcinoma is reproducible and can be used in prognostication. Goseki grouping of biopsy specimens is of limited value in predicting the Goseki group assigned to the resected carcinoma.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2559.2003.01609.x
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