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  • 1
    Online-Ressource
    Online-Ressource
    Society for Neuroscience ; 2014
    In:  The Journal of Neuroscience Vol. 34, No. 10 ( 2014-03-05), p. 3523-3535
    In: The Journal of Neuroscience, Society for Neuroscience, Vol. 34, No. 10 ( 2014-03-05), p. 3523-3535
    Kurzfassung: Sensory hair cell loss is the major cause of hearing and balance disorders. Mammals are incapable of sustained hair cell regeneration, but lower vertebrates can regenerate these mechano-electrical transducers. We present the first comprehensive transcriptome (by mRNA-Seq) of hair cell regeneration in the chick utricle. We provide pathway and pattern annotations and correlate these with the phenotypic events that occur during regeneration. These patterns are surprisingly synchronous and highly punctuated. We show how these patterns are a new resource for identifying components of the hair cell transcriptome and identify 494 new putative hair-cell-specific genes and validate three of these (of three tested) by immunohistochemical staining. We describe many surprising new components and dynamic expression patterns, particularly within NOTCH signaling. For example, we show that HES7 is specifically expressed during utricle hair cell regeneration and closely parallels the expression of HES5 . Likewise, the expression of ATOH1 is closely correlated with HEYL and the HLH inhibitory transcription factors ID1 , ID2 , and ID4 . We investigate the correlation between fibroblast growth factor signaling and supporting cell proliferation and show that FGF20 inhibits supporting cell proliferation. We also present an analysis of 212 differentially expressed transcription factor genes in the regenerative time course that fall into nine distinct gene expression patterns, many of which correlate with phenotypic events during regeneration and represent attractive candidates for future analysis and manipulation of the regenerative program in sensory epithelia and other vertebrate neuroepithelia.
    Materialart: Online-Ressource
    ISSN: 0270-6474 , 1529-2401
    Sprache: Englisch
    Verlag: Society for Neuroscience
    Publikationsdatum: 2014
    ZDB Id: 1475274-8
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    Elsevier BV ; 2022
    In:  American Journal of Otolaryngology Vol. 43, No. 5 ( 2022-09), p. 103596-
    In: American Journal of Otolaryngology, Elsevier BV, Vol. 43, No. 5 ( 2022-09), p. 103596-
    Materialart: Online-Ressource
    ISSN: 0196-0709
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2022
    ZDB Id: 2041649-0
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Otology & Neurotology Vol. 44, No. 6 ( 2023-7), p. 611-618
    In: Otology & Neurotology, Ovid Technologies (Wolters Kluwer Health), Vol. 44, No. 6 ( 2023-7), p. 611-618
    Kurzfassung: Assess the association between cannabis use and tinnitus in a nationally representative sample of US adults. Study Design Cross-sectional. Setting Population-based. Patients Adults aged 20 to 59 years who participated in 2011 to 2012 and 2015 to 2016 National Health and Nutrition Examination Survey (NHANES) with available data on tinnitus, audiometry, and substance use. Intervention None. Main Outcome Measure Tinnitus, demographic information, and medical history were obtained from NHANES questionnaires. Tinnitus was defined as bothersome tinnitus in the past year. Cannabis use was categorized as never use, low-volume use (1–2 pipes/joints per day), and high-volume use (3+ pipes/joints per day). Multivariable regression models with interaction and mediation analyses were conducted. Sampling weights were incorporated to yield results generalizable to the US population. Results Tinnitus prevalence was significantly higher among high-volume cannabis users (odds ratio [OR], 20.5%; 95% confidence interval [CI] , 16.0–26.0%]) and low-volume users (OR, 17.0%; 95% CI, 14.3–20.0%) than nonusers (OR, 12.0%; 95% CI, 10.4–13.9%). High-volume cannabis use was significantly associated with tinnitus relative to nonusers in multivariable models adjusting for demographics, cardiovascular factors, hearing loss, noise exposure, and depression (OR, 2.05; 95% CI, 1.1–3.9). Tinnitus severity was comparable among high volume, low volume, and noncannabis users. There was no significant mediation or interaction of depression affecting the association between cannabis use and tinnitus. Conclusions Bothersome tinnitus prevalence was significantly higher among cannabis users relative to nonusers. High-volume cannabis use was independently associated with tinnitus in a multivariable model accounting for relevant factors including depression. Future study is warranted to elucidate the impact of various levels of cannabis use on tinnitus.
    Materialart: Online-Ressource
    ISSN: 1537-4505 , 1531-7129
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2023
    ZDB Id: 2058738-7
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Wiley ; 2009
    In:  Otolaryngology–Head and Neck Surgery Vol. 140, No. 6 ( 2009-06), p. 794-799
    In: Otolaryngology–Head and Neck Surgery, Wiley, Vol. 140, No. 6 ( 2009-06), p. 794-799
    Kurzfassung: The 95 percent confidence interval about the mean demarcates the range of values in which the mean would fall if many samples from the universal parent population were taken. In other words, if the same observation, experiment, or trial were done over and over with a different sample of subjects, but with the same characteristics as the original sample, 95 percent of the means from those repeated measures would fall within this range. This gives a measure of how confident we are in the original mean. It tells us not only whether the results are statistically significant because the CI falls totally on one side or the other of the no difference marker (0 if continuous variables; 1 if proportions), but also the actual values so that we might determine if the data seem clinically important. In contrast, the P value tells us only whether the results are statistically significant, without translating that information into values relative to the variable that was measured. Consequently, the CI is a better choice to describe the results of observations, experiments, or trials.
    Materialart: Online-Ressource
    ISSN: 0194-5998 , 1097-6817
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2009
    ZDB Id: 2008453-5
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Elsevier BV ; 1996
    In:  Phytochemistry Vol. 43, No. 1 ( 1996-9), p. 95-98
    In: Phytochemistry, Elsevier BV, Vol. 43, No. 1 ( 1996-9), p. 95-98
    Materialart: Online-Ressource
    ISSN: 0031-9422
    RVK:
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 1996
    ZDB Id: 2000313-4
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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