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  • 1
    Electronic Resource
    Electronic Resource
    Analyses of T-cell receptor β–chain genes by Southern blotting in known and suspected cutaneous T–cell lymphoma. A study of 67 samples from 32 patients (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 20 (1995), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In this study we have investigated the configuration of the T–cell receptor (TCR) β–chain genes in benign cutaneous conditions (n= 5) and known (n= 22) or suspected (n= 5) cutaneous T–cell lymphoma (CTCL). Sequential biopsies from skin, lymph node, blood and/or bone marrow were available in 12 cases of the 22 confirmed CTCL, and a total of 67 samples were analysed. In the benign conditions, clonal rearrangements of the TCR β–chain genes were seen in neither skin nor blood samples. In contrast, in CTCL clonal rearrangements were detected in all skin samples from plaque or tumour lesions of mycosis fungoides. Clonal TCR rearrangements were also present in skin and blood samples from two patients with Sèzary's syndrome, and in skin and blood samples from three of five patients with clinically suspected CTCL. In 10 patients with large cell lymphomas, clonal rearrangements were detected in skin samples in half of the cases. In the remaining patients, clonal TCR rearrangements could not be detected in the skin, but only in the blood and/or bone marrow specimens. Results from the analyses of sequential biopsies showed identical patterns of rearrangement in 11 patients. In the remaining patient, the pattern of rearrangement differed between skin and lymph node. These data confirm and extend previous reports and indicate that analysis of TCR β–chain genes by Southern blotting forms a useful supplement to other methods for the diagnosis of known and suspected CTCL. They also emphasize the importance of studying not only skin, but also extracutaneous sites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1995.tb02667.x
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  • 2
    Electronic Resource
    Electronic Resource
    Subcutaneous lesions and bacteraemia due to Stenotrophomonas maltophilia in three leukaemic patients with neutropenia (1997)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 136 (1997), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Subcutaneous lesions were seen in three of 13 neutropenia patients who had Stenotrophomonas (Xanthomonas) maltophilia bacteraemia. The characteristic clinical presentation resembled leukaemic infiltrates, and were different from deep ulcers or subcutaneous nodules caused by Pseudomonas aeruginosa. The three patients had acute leukaemia and were treated with intensive combination chemotherapy. All had previously been treated with broad-spectrum antibiotics, and each patient recovered after proper combination antibiotic treatment given according to sensitivity testing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2133.1997.d01-200.x
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  • 3
    Electronic Resource
    Electronic Resource
    Methodological aspects of high-frequency ultrasound of skin in children (2004)
    Oxford, UK : Munksgaard International Publishers
    Skin research and technology 10 (2004), S. 0 
    Details
    ISSN: 1600-0846
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: High-frequency ultrasound of the skin has recently been introduced for assessment of systemic effects in the cutis and subcutis of oral and inhaled glucocorticoids in children. However, the use of high-frequency skin ultrasound in clinical trials is invalidated because important methodological aspects have not been addressed. The aim of the present study was to evaluate inter- and intraobserver, day to day and diurnal variations of measurement of thickness of cutis and subcutis, and the fraction of low echogenic pixels (fLEP) in the cutis and, furthermore, to assess effects of exercise on the cutis and subcutis and variations in subcutaneous thickness between anatomical locations in children with a high-frequency B-mode ultrasound scanning device.Methods: Three studies were conducted, each including 10 healthy prepubertal children. High-frequency skin ultrasound was performed with the 20 MHz Dermascan C® (Cortex Technology, Hadsund, Denmark). In study 1, the same observer performed five consecutive scannings to assess intraobserver variations. In study two different observers performed scannings at 2 h intervals between 08:00 and 20:00 h, whereby interobserver and diurnal variations were assessed. In study 3, the same observer performed scannings in different anatomical locations on five consecutive days, and on one of these days before and after exercise. Thus day-to-day variations and the effect of exercise were assessed.Results: Low inter- and intraobserver variations were found on assessment of the thickness of cutis and subcutis, whereas high variations were found on evaluation of the dermal water content. Diurnal variations were absent, and day-to-day variations were low. Exercise caused significant increases in the thickness of cutis and subcutis on the thigh.Conclusion: Low inter- and intraobserver variations make high-frequency ultrasound a precise and reliable tool for assessment of the cutaneous and subcutaneous thickness in children. In future trials, repetitive scannings need not to be performed at the same time of the day, whereas strenuous physical activity should be avoided on days of examination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0846.2004.00070.x
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  • 4
    Electronic Resource
    Electronic Resource
    Primary cutaneous B-cell lymphoma: a clinical, histological, phenotypic and genotypic study of 21 cases (2000)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 142 (2000), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The clinical, histological, phenotypic and genotypic features of 21 primary cutaneous B-cell lymphomas (CBCLs) have been investigated. The patients were 13 men and eight women aged 34–91 years (median 67) at diagnosis. Eighteen patients had localized disease, and three had multiple skin lesions at diagnosis. Twelve patients developed cutaneous or extracutaneous recurrences, and five died from malignant lymphoma 7–84 months (median 36) after diagnosis. Histological examination showed features of marginal zone/mucosa-associated lymphoid tissue (MALT)-type lymphoma in 12 cases. Three of these had transformed to diffuse large B-cell lymphoma (DLBCL) in relapse biopsies. The remaining cases were seven primary DLBCLs and two cases tentatively classified as follicle centre cell (FCC) lymphoma. The neoplastic B cells showed similar phenotypes and genotypes in most cases (CD20+, CD79+, CD5–, CD10–, cyclin D1–, bcl-2+, bcl-x–, bax–, t(14;18)-negative). p53 protein was expressed in five cases, and four harboured mis-sense or loss-of-function mutations in the p53 gene. Deletion or promoter region hypermethylation of the p16INK4a gene was detected in two patients with DLBCL. The level of retinoblastoma protein expression and the proliferative fraction were significantly higher in DLBCL (〉 50%) than in MALT- or FCC-type lymphomas (〈 10%). Features associated with an unfavourable prognosis were the presence of multiple skin lesions at diagnosis, transformation from MALT-type lymphoma to DLBCL, and possibly p16INK4a aberrations. It is concluded that most CBCLs are dissimilar from FCC lymphomas and seem to be more closely related to marginal zone/MALT-type lymphomas. It is also suggested that there are fundamental differences between DLBCL and other histological categories of CBCL, indicating that cutaneous DLBCL is a separate entity with an increased growth potential and genetic features similar to DLBCL originating in other anatomical sites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2133.2000.03471.x
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  • 5
    Electronic Resource
    Electronic Resource
    Phenotype, Ultrastructure, and Function of CD1+DR+ Epidermal Cells that Express CD36 (OKM5) in Cutaneous T-Cell Lymphoma (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 32 (1990), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This study investigated the phenotype and function of different antigen-presenting cells (APC) present within the epidermis of patients with cutaneous T-cell lymphoma (CTCL). Involved epidermis of CTCL compared with uninvolved was found to contain increased numbers of CDI + DR+ APC. This population was heterogeneous and comprised both leucocytes of a novel CD1+DR+CD36 (OK.M5)+ phenotype and CD1+DR+CD36− indeterminate/Langerhans cells. The CD1+DR+CD36+ leucocytes did not express TcR-1, CD5, CD 15. or CD22, and only a minor population expressed CD11, demonslrating that they were neither T nor B cells, and did not belong lo the major CD11+ (OKM1+) blood monocyte population. Electron microscopy of purified CD36+ lesional epidermal cells (EC) demonstrated that they lacked Birbeck granules found on CD1+-selected Langerhans cells, and most cells exhibited features of indeterminate cells or macrophages.The capacity of EC from involved epidermis to present alloanttgens was found to be increased relative to uninvolved epidermis in all patients tested, and this capacity was critically dependent upon the presence of CD45+ DR+ bone marrow-derived cells but not on the presence of CD45+ DR+ keratinocytes. Positive selection using MoAb against CDI and CD36 demonstrated that both cell populations exhibited the capacity to stimulate T cells. The results indicate that a novel antigen-presenting cell population with a unique phenotype is present within involved skin of patients with mycosis fungoides. These cells express CD36 in addition to CD1 and have an ultrastructural appearance consistent with a dendritic antigen-presenting cell derivation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1990.tb02900.x
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  • 6
    Electronic Resource
    Electronic Resource
    Gene rearrangement in positive patch tests (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Experimental dermatology 4 (1995), S. 0 
    Details
    ISSN: 1600-0625
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Lymphoproliferative disorders are usually characterized by lymphoid infiltrates that demonstrate clonality in contrast to inflammatory or reactive infiltrates of the skin that are polyclonal without detectable monoclonal populations of T-cells. Probably the southern blot analysis of TCR gene rearrangement can help to delineate the reactive from the malignant processes. In this study, we applied the technique on benign reactive processes in the skin. We examined biopsies from positive patch tests from patients with a delayed hypersensitivity reaction. We found the same gene rearrangement configuration in 11 of 17 patients with positive patch tests. The extra band revealed in these cases was situated in the EcoRl digested DNA lane at the 8.0 Kb, between the 2 germline bands at the 1 1 Kb and the 4 Kb respectively. This observation was not correlated to the degree of the inflammatory response or to the specific hapten induced reaction. This pattern was not found in any of 107 patients with malignant diagnoses, but also in six of 43 patients with benign diseases. The clinical implication may suggest the presence or development of clonality in benign inflammatory disorders.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0625.1995.tb00213.x
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  • 7
    Electronic Resource
    Electronic Resource
    Persistant oedema in allergic contact dermatitis (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Contact dermatitis 9 (1983), S. 0 
    Details
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0536.1983.tb04480.x
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  • 8
    Electronic Resource
    Electronic Resource
    Secular trends in acute myocardial infarction in relation to physical activity in the general Danish population (2003)
    Oxford, UK : Munksgaard International Publishers
    Scandinavian journal of medicine & science in sports 13 (2003), S. 0 
    Details
    ISSN: 1600-0838
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Sports Science
    Notes: Secular trends in AMI rates were analyzed in relation to physical activity levels. The population attributable risk of physical inactivity was calculated. Participants were randomly selected subjects from a suburb of Copenhagen, Denmark, screened during the years 1964–1991. Occupational physical activity and in leisure time were assessed 1964, 1974, 1976, 1982, 1987 and 1991 by self-administered questionnaire along with smoking habits and alcohol consumption. Blood pressure, weight, height and serum lipids were measured according to WHO-standards. Mortality data were obtained from death certificates, from hospital records or autopsies. Acute myocardial infarctions (AMI) 1964–1994 were included. 13.925 men and women aged 30, 40, 50 and 60 years, were drawn as random samples from a background population of 300.000 inhabitants. A cohort born in 1914 was examined in 1964 and 1974, a cohort born in 1936, was examined in 1976 and 1987; Monica (Monitoring trends and determinants in cardiovascular diseases) I cohort were examined in 1982 and 1987; MONICA II in 1986, and MONICA III in 1991. Mean physical activity level at leisure adjusted for age and sex increased over time (P 〈 0001). 25% of the men were sedentary, and more women reported a sedentary lifestyle than men. The overall trend was from 1964 to 1992 a decline in physical activity at work (P 〈 0001) in both gender and all age groups. The difference in AMI incidence rates between leisure time physical activity (LTPA) levels increased over time. No change was found in AMI rates comparing sedentary in different time periods. A remarkable decrease over time in the AMI incidence rate was found in physically active during leisure time. Population attributable risk (PAR) exceeded 40% in both genders in the late 1980s. In conclusion the difference in AMI rates between LTPA subgroups has increased over time. The low AMI rates observed among the most physically active reveal a substantial potential for the prevention of AMI through physical activity. A population attributable risk of more than 40% for physical inactivity suggests a potential for primary prevention through increased physical activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0838.2003.00310.x
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  • 9
    Electronic Resource
    Electronic Resource
    Evolution of cutaneous lymphoid hyperplasia to cutaneous T-cell lymphoma (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 13 (1988), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Single cell DNA measurements have recently been used in diagnosis and as a measure of treatment response in different premalignant and malignant conditions. In the present case evolution of cutaneous lymphoid hyperplasia to cutaneous T-cell lymphoma was demonstrated by histological and immunohistological criteria. However, using single cell DNA measurements clear aneuploidy, by an additional peak in the hyperdiploid region of the DNA histogram, was revealed both in the benign and malignant stages of the disease. Lymph node and peripheral blood were normal by histopathological, immunohistopathological and single cell DNA measurements, indicating that the malignant potential may have been confined to the skin. Thus, single cell DNA measurements may be used as an additional diagnostic tool, when the diagnosis is inconclusive or at variance with the clinical findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1988.tb00711.x
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  • 10
    Electronic Resource
    Electronic Resource
    DNA analysis by flow cytometry in lymphomatoid papulosis (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 8 (1983), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: DNA analysis by flow cytometry revealed normal DNA histograms in three patients (seven skin specimens) with ‘classical’ lymphomatoid papulosis, A fourth patient, also with a‘classical lynphomatoid papulosis, had an increased number of tetraploid nuclei (14%, and 28%). The fifth patient with recurrent tumours, no papules and a more malignant histology showed ancuploidy by sequential examinations (hyperdiploidy and hypertetraploidy) of three skin specimens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1983.tb01817.x
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