LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 1039

Search options

  1. Article ; Online: Significant improvements in clinical outcome measures and patient satisfaction after combined all-arthroscopic meniscal allograft transplantation and autologous chondrocyte implantation: A single-centre longitudinal study.

    Pawelczyk, Johannes / Fanourgiakis, Ilias / Feil, Sven / Siebold, Rainer

    Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA

    2024  Volume 32, Issue 1, Page(s) 78–88

    Abstract: Purpose: The optimal treatment approach for the complex pathology of meniscal insufficiency and coexisting full-thickness cartilage defects remains unclear. The purpose of this study was to evaluate the viability, safety, and efficacy of this combined ... ...

    Abstract Purpose: The optimal treatment approach for the complex pathology of meniscal insufficiency and coexisting full-thickness cartilage defects remains unclear. The purpose of this study was to evaluate the viability, safety, and efficacy of this combined surgical approach at medium-term follow-up.
    Methods: This is a single-centre longitudinal study with blinded outcome assessment. All consecutive patients treated with combined all-arthroscopic meniscal allograft transplantation (MAT) with bone bridge fixation and ACI using chondrospheres at our institution between 2001 and 2021 were eligible for inclusion. Twenty patients with an average follow-up of 72.6 ± 34.4 months were included in the statistical analysis. Clinical outcomes were assessed pre- and postoperatively using the IKDC Subjective Knee Form, Lysholm Score, Tegner Activity Scale, KOOS, and Visual Analog Scale (VAS) for patient satisfaction. Failure and reoperation rates were assessed, and cartilage regeneration tissue was evaluated on postoperative MRI.
    Results: IKDC scores significantly improved from 52.1 ± 16.9 to 68.5 ± 16.3 (p = 0.003). Lysholm scores improved from 61.5 ± 21.7 to 78.5 ± 12.9 (p = 0.004). Tegner scores improved from 3.5 (1-4) to 4.0 (2-6) (p = 0.014). KOOS scores improved significantly across all subcategories, except 'symptoms', where improvements did not reach statistical significance. VAS for overall patient satisfaction showed improvements but did not reach statistical significance. The combined procedure was successful in 17 patients (85%). Eight patients had to undergo reoperation (40%), comprising mostly small, arthroscopic procedures. Seven reoperations were directly attributable to meniscal allograft transplantation (46.7%). Postoperative Magnetic Resonance Observation of Cartilage Repair Tissue scores were 68.9 ± 16.8 (n = 14).
    Conclusion: Combined arthroscopic MAT and autologous chondrocyte implantation (ACI) is a viable, safe, and effective treatment approach for younger patients with meniscal insufficiency and coexisting full-thickness cartilage damage, where alternative treatment options are limited. The combined surgical procedure achieved significant improvements in clinical outcome measures and patient satisfaction with acceptable failure and high arthroscopic reoperation rates. MAT is the limiting part of this combined procedure, with most failures and reoperations being attributable to MAT, as opposed to ACI.
    Level of evidence: Level III.
    MeSH term(s) Humans ; Patient Satisfaction ; Chondrocytes/transplantation ; Longitudinal Studies ; Follow-Up Studies ; Arthroscopy/methods ; Treatment Outcome ; Knee Joint/surgery ; Transplantation, Autologous ; Allografts ; Cartilage, Articular/surgery
    Language English
    Publishing date 2024-01-03
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1159064-6
    ISSN 1433-7347 ; 0942-2056
    ISSN (online) 1433-7347
    ISSN 0942-2056
    DOI 10.1002/ksa.12023
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: The cancer of corruption and World Bank project performance

    Feil, Hauke

    Is there a connection?

    2021  

    Abstract: ... the low pseudo R-squareds advise not overestimating the relevance of corruption for project performance ...

    Abstract Motivation: Corruption is often cited as a central reason why development projects fail. The article tests this claim by assessing whether World Bank projects perform worse in implementation environments with a higher corruption level. The article focuses specifically on bribery between public officials and firms during the procurement of needed goods and services. Approach and Methods I use data from the World Bank’s Enterprise Surveys to avoid the often-criticized corruption perception indices and to allow for an assessment of effects at the subnational level. The analysis builds on an assessment of the performance ratings of 1,228 World Bank projects and covers 87 different countries. Finding Overall, the article finds a small but statistically significant correlation between the corruption level and project performance. This result indicates that the corruption level of recipient countries should be considered during the design and implementation of projects. Policy Implications Nonetheless, the relatively small correlation and the low pseudo R-squareds advise not overestimating the relevance of corruption for project performance. At least for the project level, the article finds no indication that corruption is a primary obstacle to aid effectiveness.
    Keywords ddc:300 ; Aid effectiveness ; corruption ; Enterprise Survey ; project performance ; World Bank
    Subject code 940
    Language English
    Publisher Hoboken, NJ: Wiley
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  3. Article ; Online: Recent developments in cGMP research: From mechanisms to medicines and back.

    Lukowski, Robert / Feil, Robert

    British journal of pharmacology

    2022  Volume 179, Issue 11, Page(s) 2321–2327

    MeSH term(s) Cyclic GMP
    Chemical Substances Cyclic GMP (H2D2X058MU)
    Language English
    Publishing date 2022-03-25
    Publishing country England
    Document type Editorial ; Research Support, Non-U.S. Gov't
    ZDB-ID 80081-8
    ISSN 1476-5381 ; 0007-1188
    ISSN (online) 1476-5381
    ISSN 0007-1188
    DOI 10.1111/bph.15824
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Visualising and understanding cGMP signals in the cardiovascular system.

    Feil, Robert / Lehners, Moritz / Stehle, Daniel / Feil, Susanne

    British journal of pharmacology

    2021  Volume 179, Issue 11, Page(s) 2394–2412

    Abstract: cGMP is an important signalling molecule in humans. Fluorescent cGMP biosensors have emerged as powerful tools for the sensitive analysis of cGMP pathways at the single-cell level. Here, we briefly outline cGMP's multifaceted role in (patho)physiology ... ...

    Abstract cGMP is an important signalling molecule in humans. Fluorescent cGMP biosensors have emerged as powerful tools for the sensitive analysis of cGMP pathways at the single-cell level. Here, we briefly outline cGMP's multifaceted role in (patho)physiology and pharmacotherapy. Then we summarise what new insights cGMP imaging has provided into endogenous cGMP signalling and drug action, with a focus on the cardiovascular system. Indeed, the use of cGMP biosensors has led to several conceptual advances, such as the discovery of local, intercellular and mechanosensitive cGMP signals. Importantly, single-cell imaging can provide valuable information about the heterogeneity of cGMP signals within and between individual cells of an isolated cell population or tissue. We also discuss current challenges and future directions of cGMP imaging, such as the direct visualisation of cGMP microdomains, simultaneous monitoring of cGMP and other signalling molecules and, ultimately, cGMP imaging in tissues and animals under close-to-native conditions. LINKED ARTICLES: This article is part of a themed issue on cGMP Signalling in Cell Growth and Survival. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v179.11/issuetoc.
    MeSH term(s) Animals ; Cardiovascular System/metabolism ; Cyclic GMP/metabolism ; Signal Transduction
    Chemical Substances Cyclic GMP (H2D2X058MU)
    Language English
    Publishing date 2021-05-22
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 80081-8
    ISSN 1476-5381 ; 0007-1188
    ISSN (online) 1476-5381
    ISSN 0007-1188
    DOI 10.1111/bph.15500
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Imprinted Long Non-Coding RNAs in Mammalian Development and Disease.

    Di Michele, Flavio / Chillón, Isabel / Feil, Robert

    International journal of molecular sciences

    2023  Volume 24, Issue 17

    Abstract: Imprinted genes play diverse roles in mammalian development, homeostasis, and disease. Most imprinted chromosomal domains express one or more long non-coding RNAs (lncRNAs). Several of these lncRNAs are strictly nuclear and their mono-allelic expression ... ...

    Abstract Imprinted genes play diverse roles in mammalian development, homeostasis, and disease. Most imprinted chromosomal domains express one or more long non-coding RNAs (lncRNAs). Several of these lncRNAs are strictly nuclear and their mono-allelic expression controls in
    MeSH term(s) Humans ; Animals ; RNA, Long Noncoding/genetics ; Alleles ; Embryo, Mammalian ; Epigenesis, Genetic ; Homeostasis ; Mammals/genetics
    Chemical Substances RNA, Long Noncoding
    Language English
    Publishing date 2023-09-04
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms241713647
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Heterogeneity of cGMP signalling in tumour cells and the tumour microenvironment: Challenges and chances for cancer pharmacology and therapeutics.

    Stehle, Daniel / Barresi, Mariagiovanna / Schulz, Jennifer / Feil, Robert

    Pharmacology & therapeutics

    2023  Volume 242, Page(s) 108337

    Abstract: The second messenger cyclic guanosine monophosphate (cGMP) is an important regulator of human (patho-)physiology and has emerged as an attractive drug target. Currently, cGMP-elevating drugs are mainly used to treat cardiovascular diseases, but there is ... ...

    Abstract The second messenger cyclic guanosine monophosphate (cGMP) is an important regulator of human (patho-)physiology and has emerged as an attractive drug target. Currently, cGMP-elevating drugs are mainly used to treat cardiovascular diseases, but there is also increasing interest in exploring their potential for cancer prevention and therapy. In this review article, we summarise recent findings in cancer-related cGMP research, with a focus on melanoma, breast cancer, colorectal cancer, prostate cancer, glioma, and ovarian cancer. These studies indicate tremendous heterogeneity of cGMP signalling in tumour tissue. It appears that different tumour and stroma cells, and perhaps different sexes, express different cGMP generators, effectors, and degraders. Therefore, the same cGMP-elevating drug can lead to different outcomes in different tumour settings, ranging from inhibition to promotion of tumourigenesis or therapy resistance. These findings, together with recent evidence that increased cGMP signalling is associated with worse prognosis in several human cancers, challenge the traditional view that cGMP elevation generally has an anti-cancer effect. As cGMP pathways appear to be more stable in the stroma than in tumour cells, we suggest that cGMP-modulating drugs should preferentially target the tumour microenvironment. Indeed, there is evidence that phosphodiesterase 5 inhibitors like sildenafil enhance anti-tumour immunity by acting on immune cells. Moreover, many in vivo results obtained with cGMP-modulating drugs could be explained by effects on the tumour vasculature rather than on the tumour cells themselves. We therefore propose a model that incorporates the NO/cGMP signalling pathway in tumour vessels as a key target for cancer therapy. Deciphering the multifaceted roles of cGMP in cancer is not only a challenge for basic research, but also provides a chance to predict potential adverse effects of cGMP-modulating drugs in cancer patients and to develop novel anti-tumour therapies by precision targeting of the relevant cells and molecular pathways.
    MeSH term(s) Male ; Humans ; Signal Transduction ; Cyclic GMP/metabolism ; Neoplasms/drug therapy ; Phosphodiesterase 5 Inhibitors ; Sildenafil Citrate/pharmacology ; Tumor Microenvironment
    Chemical Substances Cyclic GMP (H2D2X058MU) ; Phosphodiesterase 5 Inhibitors ; Sildenafil Citrate (BW9B0ZE037)
    Language English
    Publishing date 2023-01-06
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 194735-7
    ISSN 1879-016X ; 0163-7258
    ISSN (online) 1879-016X
    ISSN 0163-7258
    DOI 10.1016/j.pharmthera.2023.108337
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Emerging chromatin structural roles of the methyl-CpG binding protein MeCP2.

    Imaizumi, Yui / Feil, Robert

    Epigenomics

    2021  Volume 13, Issue 6, Page(s) 405–409

    MeSH term(s) Chromatin/chemistry ; Chromatin/metabolism ; DNA Methylation ; Epigenesis, Genetic ; Gene Expression Regulation ; Humans ; Methyl-CpG-Binding Protein 2/chemistry ; Methyl-CpG-Binding Protein 2/metabolism ; Protein Binding ; Transcription Factors/metabolism
    Chemical Substances Chromatin ; Methyl-CpG-Binding Protein 2 ; Transcription Factors
    Language English
    Publishing date 2021-03-09
    Publishing country England
    Document type Editorial ; Research Support, Non-U.S. Gov't
    ZDB-ID 2537199-X
    ISSN 1750-192X ; 1750-1911
    ISSN (online) 1750-192X
    ISSN 1750-1911
    DOI 10.2217/epi-2021-0053
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Viagra releases the brakes on melanoma growth.

    Feil, Robert

    Molecular & cellular oncology

    2016  Volume 4, Issue 5, Page(s) e1188874

    Abstract: Use of the phosphodiesterase 5 (PDE5) blocker sildenafil (Viagra) has been linked to an increased risk of melanoma. In a recent study we discovered a growth-promoting cGMP pathway in melanoma cells. cGMP degradation via PDE5 acts as a brake on this ... ...

    Abstract Use of the phosphodiesterase 5 (PDE5) blocker sildenafil (Viagra) has been linked to an increased risk of melanoma. In a recent study we discovered a growth-promoting cGMP pathway in melanoma cells. cGMP degradation via PDE5 acts as a brake on this pathway. Inhibition of PDE5 releases this brake, providing a mechanism for the promelanoma effects of sildenafil.
    Language English
    Publishing date 2016-05-31
    Publishing country United States
    Document type Journal Article
    ISSN 2372-3556
    ISSN 2372-3556
    DOI 10.1080/23723556.2016.1188874
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Book ; Thesis: Die Utraschalldiagnose des Hydrozephalus in utero und die weitere Entwicklung der betroffenen Kinder

    Feil, Roman

    eine Analyse von 109 Fällen

    1997  

    Author's details vorgelegt von Roman Feil
    Language German
    Size 89 Bl. : Ill., graph. Darst.
    Edition [Mikrofiche-Ausg.]
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Münster (Westfalen), Univ., Diss., 1997
    Note Mikrofiche-Ausg.: 1 Mikrofiche : 24x
    HBZ-ID HT007963898
    Database Catalogue ZB MED Medicine, Health

    Kategorien

  10. Article ; Online: Noninvasive Detection of Smooth Muscle Cell-Derived Hot Spots to Study Atherosclerosis by PET/MRI in Mice.

    Feil, Susanne / Stowbur, Dimitri / Schörg, Barbara F / Ehrlichmann, Walter / Reischl, Gerald / Kneilling, Manfred / Pichler, Bernd J / Feil, Robert

    Circulation research

    2023  Volume 132, Issue 6, Page(s) 747–750

    MeSH term(s) Animals ; Mice ; Positron-Emission Tomography ; Atherosclerosis/diagnostic imaging ; Magnetic Resonance Imaging ; Fluorodeoxyglucose F18
    Chemical Substances Fluorodeoxyglucose F18 (0Z5B2CJX4D)
    Language English
    Publishing date 2023-02-16
    Publishing country United States
    Document type Research Support, Non-U.S. Gov't ; Journal Article
    ZDB-ID 80100-8
    ISSN 1524-4571 ; 0009-7330 ; 0931-6876
    ISSN (online) 1524-4571
    ISSN 0009-7330 ; 0931-6876
    DOI 10.1161/CIRCRESAHA.122.322296
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top