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  • 1
    Keywords: neoplasms ; EPIDEMIOLOGY ; ASSOCIATION ; NON-HODGKINS-LYMPHOMA ; MATRIX ; REPRODUCTIVE FACTORS ; SUBTYPES ; CHEMICALS ; EPILYMPH ; PESTICIDES
    Abstract: BACKGROUND: Incidence rates of lymphoma are usually higher in men than in women, and oestrogens may protect against lymphoma. METHODS: We evaluated occupational exposure to endocrine disrupting chemicals (EDCs) among 2457 controls and 2178 incident lymphoma cases and subtypes from the European Epilymph study. RESULTS: Over 30 years of exposure to EDCs compared to no exposure was associated with a 24% increased risk of mature B-cell neoplasms (P-trend=0.02). Associations were observed among men, but not women. CONCLUSIONS: Prolonged occupational exposure to endocrine disruptors seems to be moderately associated with some lymphoma subtypes.
    Type of Publication: Journal article published
    PubMed ID: 25742473
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  • 2
    Keywords: carcinoma ; RISK ; SAMPLES ; INFECTION ; antibodies ; LYMPHOMA ; CANCERS ; EPILYMPH ; MCPYV
    Abstract: Merkel cell polyomavirus (MCPyV) has been suspected to cause chronic lymphocytic leukaemia (CLL) but previous data are inconsistent. We measured seroreactivities of nine polyomaviruses (MCPyV, BKPyV, JCPyV, LPyV, KIPyV, WUPyV, HPyV-6, HPyV-7 and TSPyV) in 359 CLL cases and 370 controls using bead-based multiplex serology technology. We additionally tested two herpesviruses (HSV-1 and CMV). Associations between disease and viral seroreactivities were assessed using logistic regression. All human viruses showed high seroprevalences (69-99 %) against structural proteins in controls but significantly lower viral seroprevalences in cases (58-94 %; OR range = 0.21-0.70, P value 〈 0.05), except for MCPyV (OR = 0.79, 95 % CI = 0.54-1.16). Lower seroreactivity levels were observed among CLL subjects, with significant differences already observed at early stages of disease, unrelated to treatment status. Seroreactivities against polyomavirus related oncoproteins were almost null. Our data suggest no association for MCPyV polyomavirus with CLL development and an unlikely association for other polyomaviruses tested.
    Type of Publication: Journal article published
    PubMed ID: 25920529
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  • 3
    ISSN: 1573-7446
    Keywords: aetiology ; epidemiology ; grass sickness ; mal seco ; Patagonia ; pathology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Mal seco is a grass sickness-like syndrome of horses which has mainly been observed in Patagonia, Argentina, although some reports indicate that the disease may exist in other Argentinian provinces and in the south of Chile. The aetiology ofmal seco remains unknown but the disease seems to be restricted to animals grazing on natural pastures and not receiving supplementary feeding.Mal seco is clinically characterized by total or partial bowel stasis and the main findings at post-mortem examination are almost exclusively restricted to the bowel. The most striking histopathological changes found consisted of degenerative changes in the coeliaco-mesenteric ganglia and also in other central and peripheral structures of the nervous system.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Plant cell reports 12 (1993), S. 395-398 
    ISSN: 1432-203X
    Keywords: Phaseolus cocdneus ; Plant regeneration ; Chromosome number ; Isozymes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A method for long-term plant regeneration of Phaseolus coccineus L, is described. Shoot-tips and cotyledonary nodes cultured on a Murashige and Skoog medium supplemented with N6-benzylaminopurine, 10 μM, and α-naphthaleneacetic acid, 1μM, formed multiple bud-shoots. These shoots were transferred to medium containing BAP 1 μM, NAA 0.1 μM, and gibberellic acid 3 μM to promote shoot growth and further shoot multiplication. Rooting was achieved in medium with 11 μM indole-3-acetic acid. Rooted plants grew to maturity and were fertile. Cultures have maintained their ability to regenerate plants for more than two years. A sample of 30 regenerated plants (R0) was tested for chromosome number, all of them being diploid; seven isozymatic systems were electrophpretically analyzed in 82 R0 regenerated plants. No differences were observed in their electrophoretic patterns in comparison with those shown by seedlings. Histological studies revealed the origin of buds from calluses via organogenesis.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Detailed inventories of the benthos and field studies of the settlement and recruitment processes of marine benthic invertebrates require accurate identification of newly settled larvae and early juvenile stages. We provide morphological criteria, visible under a good quality dissecting stereomicroscope, by which to discriminate between species of the settling larval and early postlarval stages (∼250 to 700 μm shell length) of mussels of the genus Mytilus on the west coast of Vancouver Island and Southern California. Compared to the bay mussel (M. trossulus), the sea mussel (M. californianus) has: (i) a shallower and flatter umbo, the latter corresponding to a significantly less pronounced prodissoconch I (PI) curvature and (ii) a greater PI length; as well as (iii) a wider separation between the provincular lateral teeth (PLT). The PLT distance is a new term denoting the separation between the midpoint of two reddish pigment spots of the provinculum (larval hinge apparatus) region of settling larvae and early postlarvae of Mytilus spp. from the East Pacific Coast. These spots mark the larger provincular lateral teeth, situated at either end of the provinculum. We confirmed the validity of morphological criteria by comparing PCR products of genomic DNA of provisionally identified postlarvae. Furthermore, measurements of PI lengths and PLT distance from well-preserved postlarvae of sea mussels (M. californianus) and of bay mussels (M. galloprovincialis) from Southern California indicate that the PI morphology and morphometry, and PLT distance criterion apply for that region as well. The criteria presented here can also apply to the advanced (competent) veliger stages, as the latter may settle (i.e. become the “settling” stage) upon encountering a suitable substrate. Our present and previously published work provide economical and effective identification methods that can be used to discriminate among early life history stages (∼250 μm to 5.0 mm shell length) of Mytilus spp. along the west coast of North America.
    Type of Medium: Electronic Resource
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