LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 1980

Search options

  1. Article ; Online: Aligned or misaligned: Are public funding models for speech-language pathology reflecting recommended evidence? An exploratory survey of Australian speech-language pathologists.

    Nickless, T / Davidson, B / Finch, S / Gold, L / Dowell, R

    Health policy OPEN

    2024  Volume 6, Page(s) 100117

    Abstract: Government subsidised funding arrangements serve as an essential medium for families to access private speech-language pathology (SLP) services in Australia. This study aimed to investigate whether, from a provider perspective, contemporary public ... ...

    Abstract Government subsidised funding arrangements serve as an essential medium for families to access private speech-language pathology (SLP) services in Australia. This study aimed to investigate whether, from a provider perspective, contemporary public funding models (PFMs) align with best-available scientific evidence for management of children and young persons with swallowing and communication disorders within Australian private-practice settings. This exploratory study was distributed to paediatric speech-language pathologists throughout Australia via an online survey. A total of 121 valid surveys were completed by Australian speech-language pathologists with divergent career experiences. In comparing three familiar PFMs using mixed effects logistic regression models to estimate odds ratios, results indicated that perceived congruence with recommended scientific evidence for SLP management varied across PFMs: the odds of failing to align with scientific evidence was 4.92 times higher for Medicare's Chronic Disease Management Plan (MBS_CDMP) than for the National Disability Insurance Scheme; and 7.40 times higher in comparison to Medicare's Helping Children with Autism initiative. This study is the first to report on (in)congruence between PFMs that provide access to independent Australian SLP services for children and young persons and best available scientific evidence to inform clinical practice. Participants identified that: (a) four out of seven contemporary PFMs were unfamiliar to speech-language pathologists; and (b) MBS_CDMP initiative failed to align with the evidence-base for best scientific SLP management.
    Language English
    Publishing date 2024-03-07
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2590-2296
    ISSN (online) 2590-2296
    DOI 10.1016/j.hpopen.2024.100117
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Molecular testing on serous effusions.

    Davidson, Ben

    Diagnostic cytopathology

    2020  Volume 49, Issue 5, Page(s) 640–646

    Abstract: Serous effusions constitute a significant part of the material processed and diagnosed by cytopathology laboratories. Effusions may occur in a variety of clinical settings and the differential diagnosis between these conditions often requires ancillary ... ...

    Abstract Serous effusions constitute a significant part of the material processed and diagnosed by cytopathology laboratories. Effusions may occur in a variety of clinical settings and the differential diagnosis between these conditions often requires ancillary tests. Immunohistochemistry is still the most frequently used method in this context. However, a wide array of other methods measuring the expression of DNA, mRNA, noncoding RNA, proteins, and other compounds may be applied to the diagnosis of serous effusions, particularly in the setting of cancer, as well as to studies focusing on tumor biology and understanding of tumor progression. In addition, as serous effusions provide ideal material for molecular testing, they have in recent years assumed central role as specimens informative of prediction in the context of targeted therapy, as well as prognostication. This review discusses recent studies in this field.
    MeSH term(s) Cytodiagnosis/methods ; Exudates and Transudates/cytology ; Humans ; Molecular Diagnostic Techniques/methods ; Neoplasms/diagnosis
    Language English
    Publishing date 2020-02-05
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 632710-2
    ISSN 1097-0339 ; 8755-1039
    ISSN (online) 1097-0339
    ISSN 8755-1039
    DOI 10.1002/dc.24392
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Cancer Stem Cell Markers Are Differentially Expressed in Malignant Ovarian Germ Cell Tumors.

    Davidson, Ben / Solheim, Olesya

    International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists

    2023  Volume 42, Issue 6, Page(s) 613–619

    Abstract: The objective of this study was to analyze the expression and potential clinical role of cancer stem cell (CSC) markers in malignant ovarian germ cell tumors (MOGCT). CD34, CD44, and SOX2 protein expression by immunohistochemistry was analyzed in 49 ... ...

    Abstract The objective of this study was to analyze the expression and potential clinical role of cancer stem cell (CSC) markers in malignant ovarian germ cell tumors (MOGCT). CD34, CD44, and SOX2 protein expression by immunohistochemistry was analyzed in 49 MOGCT from patients treated in Norway during the period 1980-2011. Expression was analyzed for association with tumor type and clinicopathologic parameters. Tumors were diagnosed as dysgerminoma (DG; n=15), immature teratoma (IT; n=15), yolk sac tumor (YST; n=12), embryonal carcinoma (n=2), and mixed MOGCT (n=5). Tumor cell CD34 expression was significantly more common in YST, whereas stromal expression was only seen in IT (both P <0.001). CD44 was infrequently expressed, most often focally, in tumor cells, particularly in YST ( P =0.026). CD44 was widely expressed in leukocytes, most prominently in DG. SOX2 was most frequently expressed in IT, with predominantly focal expression in some YST and uniform absence in DG ( P <0.001). Stromal CD34 ( P =0.012) and tumor cell SOX2 expression ( P =0.004) were negatively associated with the involvement of the ovarian surface, presumably due to the low incidence of this event in IT. No significant association was found between CSC marker expression and other clinicopathologic parameters, including age, laterality, tumor diameter, and FIGO stage. In conclusion, CSC markers are differentially expressed in various MOGCT types, suggesting differences in the regulation of cancer-related processes. Expression of CD34, CD44, and SOX2 does not appear to be associated with clinical parameters in this patient group.
    Language English
    Publishing date 2023-05-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604859-6
    ISSN 1538-7151 ; 0277-1691
    ISSN (online) 1538-7151
    ISSN 0277-1691
    DOI 10.1097/PGP.0000000000000947
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Lhx3/4 initiates a cardiopharyngeal-specific transcriptional program in response to widespread FGF signaling.

    Pickett, C J / Gruner, Hannah N / Davidson, Bradley

    PLoS biology

    2024  Volume 22, Issue 1, Page(s) e3002169

    Abstract: Individual signaling pathways, such as fibroblast growth factors (FGFs), can regulate a plethora of inductive events. According to current paradigms, signal-dependent transcription factors (TFs), such as FGF/MapK-activated Ets family factors, partner ... ...

    Abstract Individual signaling pathways, such as fibroblast growth factors (FGFs), can regulate a plethora of inductive events. According to current paradigms, signal-dependent transcription factors (TFs), such as FGF/MapK-activated Ets family factors, partner with lineage-determining factors to achieve regulatory specificity. However, many aspects of this model have not been rigorously investigated. One key question relates to whether lineage-determining factors dictate lineage-specific responses to inductive signals or facilitate these responses in collaboration with other inputs. We utilize the chordate model Ciona robusta to investigate mechanisms generating lineage-specific induction. Previous studies in C. robusta have shown that cardiopharyngeal progenitor cells are specified through the combined activity of FGF-activated Ets1/2.b and an inferred ATTA-binding transcriptional cofactor. Here, we show that the homeobox TF Lhx3/4 serves as the lineage-determining TF that dictates cardiopharyngeal-specific transcription in response to pleiotropic FGF signaling. Targeted knockdown of Lhx3/4 leads to loss of cardiopharyngeal gene expression. Strikingly, ectopic expression of Lhx3/4 in a neuroectodermal lineage subject to FGF-dependent specification leads to ectopic cardiopharyngeal gene expression in this lineage. Furthermore, ectopic Lhx3/4 expression disrupts neural plate morphogenesis, generating aberrant cell behaviors associated with execution of incompatible morphogenetic programs. Based on these findings, we propose that combinatorial regulation by signal-dependent and lineage-determinant factors represents a generalizable, previously uncategorized regulatory subcircuit we term "cofactor-dependent induction." Integration of this subcircuit into theoretical models will facilitate accurate predictions regarding the impact of gene regulatory network rewiring on evolutionary diversification and disease ontogeny.
    MeSH term(s) Animals ; Gene Expression Regulation, Developmental ; Fibroblast Growth Factors/genetics ; Fibroblast Growth Factors/metabolism ; Signal Transduction/physiology ; Ciona intestinalis/genetics ; Transcription Factors/genetics ; Transcription Factors/metabolism
    Chemical Substances Fibroblast Growth Factors (62031-54-3) ; Transcription Factors
    Language English
    Publishing date 2024-01-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2126776-5
    ISSN 1545-7885 ; 1544-9173
    ISSN (online) 1545-7885
    ISSN 1544-9173
    DOI 10.1371/journal.pbio.3002169
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Biomarkers of drug resistance in ovarian cancer - an update.

    Davidson, Ben

    Expert review of molecular diagnostics

    2019  Volume 19, Issue 6, Page(s) 469–476

    Abstract: ... ...

    Abstract Introduction
    MeSH term(s) Antineoplastic Agents/pharmacology ; Antineoplastic Agents/therapeutic use ; BRCA1 Protein/genetics ; BRCA2 Protein/genetics ; Biomarkers, Tumor ; Cell Cycle/genetics ; Disease Susceptibility ; Drug Resistance, Neoplasm/genetics ; Expert Testimony ; Female ; Humans ; Immunity ; MicroRNAs/genetics ; Mitosis/genetics ; Neoplastic Stem Cells/immunology ; Neoplastic Stem Cells/metabolism ; Neoplastic Stem Cells/pathology ; Ovarian Neoplasms/drug therapy ; Ovarian Neoplasms/etiology ; Ovarian Neoplasms/metabolism ; Signal Transduction
    Chemical Substances Antineoplastic Agents ; BRCA1 Protein ; BRCA2 Protein ; Biomarkers, Tumor ; MicroRNAs
    Language English
    Publishing date 2019-05-16
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2112530-2
    ISSN 1744-8352 ; 1473-7159
    ISSN (online) 1744-8352
    ISSN 1473-7159
    DOI 10.1080/14737159.2019.1618187
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Circulating tumor cells and cell-free nucleic acids in patients with gynecological malignancies.

    Davidson, Ben

    Virchows Archiv : an international journal of pathology

    2018  Volume 473, Issue 4, Page(s) 395–403

    Abstract: The ability to detect cancer cells in the blood or in the bone marrow offers invaluable information which potentially impacts early diagnosis, monitoring of treatment, and prognosis. Accessing blood or other body fluids has the additional advantage of ... ...

    Abstract The ability to detect cancer cells in the blood or in the bone marrow offers invaluable information which potentially impacts early diagnosis, monitoring of treatment, and prognosis. Accessing blood or other body fluids has the additional advantage of being less invasive than biopsy. Consequently, considerable effort has been invested in the last 20 years in optimizing assays which may identify malignant cells at these anatomic sites. Detection of nucleic acids has been applied as alternative approach in this context, first targeting single cancer-associated genes using PCR-based technology, and recently using assays which identify different DNA classes, as well as microRNAs and exosomes. The present review focuses on studies which applied these assays to the detection of cells or cellular components originating from gynecological cancers.
    MeSH term(s) Biomarkers, Tumor/blood ; Biomarkers, Tumor/genetics ; Cell-Free Nucleic Acids/blood ; Cell-Free Nucleic Acids/genetics ; Early Detection of Cancer/methods ; Female ; Genital Neoplasms, Female/blood ; Genital Neoplasms, Female/genetics ; Genital Neoplasms, Female/pathology ; Humans ; Molecular Diagnostic Techniques ; Neoplastic Cells, Circulating/chemistry ; Neoplastic Cells, Circulating/pathology ; Predictive Value of Tests ; Prognosis
    Chemical Substances Biomarkers, Tumor ; Cell-Free Nucleic Acids
    Language English
    Publishing date 2018-08-25
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 1184867-4
    ISSN 1432-2307 ; 0945-6317
    ISSN (online) 1432-2307
    ISSN 0945-6317
    DOI 10.1007/s00428-018-2447-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Clinicopathological prognostic parameters in patients with tubo-ovarian carcinoma effusions.

    Davidson, Ben / Elstrand, Mari Bunkholt

    Cytopathology : official journal of the British Society for Clinical Cytology

    2022  Volume 33, Issue 4, Page(s) 479–492

    Abstract: Objective: To analyse the predictive and prognostic role of clinicopathological parameters in patients with tubo-ovarian carcinoma and malignant effusion.: Methods: A retrospective series of 700 malignant peritoneal (n = 610) and pleural (n = 90) ... ...

    Abstract Objective: To analyse the predictive and prognostic role of clinicopathological parameters in patients with tubo-ovarian carcinoma and malignant effusion.
    Methods: A retrospective series of 700 malignant peritoneal (n = 610) and pleural (n = 90) effusions from 558 patients was revised for histotype based on the 2014 World Health Organization criteria. The role of clinicopathological parameters in determining outcome was assessed.
    Results: The majority of specimens (597 effusions from 473 patients) were high-grade serous carcinomas (HGSC), followed by low-grade serous carcinoma (LGSC; 48 effusions, 37 patients), clear cell carcinoma (CCC; 23 effusions, 19 patients) and carcinosarcoma (CS; 16 effusions, 16 patients). Patients with CCC and CS had the shortest, those with HGSC intermediate, and those with LGSC longest overall and progression-free survival (both P < 0.001). For patients with HGSC, older age (P = 0.002), more advanced FIGO stage (IV vs III; P < 0.001), delayed/no surgery (P < 0.001), larger residual disease volume (RD; P < 0.001), non-complete response to chemotherapy at diagnosis (P < 0.001), and primary platinum resistance (P < 0.001) were associated with shorter overall survival. In Cox multivariate analysis, FIGO stage (P = 0.002) and primary platinum resistance (P < 0.001) were independent prognosticators. Significant association was additionally found for parameters analysed for progression-free survival in HGSC (previous chemotherapy: P = 0.029; age: P = 0.046; FIGO stage, upfront therapy, RD: P < 0.001), of which previous chemotherapy, upfront therapy, and RD were independent prognosticators (all P < 0.001).
    Conclusions: The vast majority of malignant effusions in patients with tubo-ovarian carcinoma are derived from serous carcinoma or related tumours, such as CS. Histology is a powerful prognostic factor in this patient group, as are established clinical parameters.
    MeSH term(s) Biomarkers, Tumor/analysis ; Carcinoma ; Cystadenocarcinoma, Serous/diagnosis ; Female ; Humans ; Ovarian Neoplasms/diagnosis ; Platinum/therapeutic use ; Pleural Effusion, Malignant/diagnosis ; Prognosis ; Retrospective Studies
    Chemical Substances Biomarkers, Tumor ; Platinum (49DFR088MY)
    Language English
    Publishing date 2022-04-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 1034190-0
    ISSN 1365-2303 ; 0956-5507 ; 1350-4037
    ISSN (online) 1365-2303
    ISSN 0956-5507 ; 1350-4037
    DOI 10.1111/cyt.13126
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Public purse, private service: The perceptions of public funding models of Australian independent speech-language pathologists.

    Nickless, Tristan / Gold, Lisa / Dowell, Richard / Davidson, Bronwyn

    International journal of speech-language pathology

    2023  Volume 25, Issue 3, Page(s) 462–478

    Abstract: Purpose: Health funding provisions supported by governments are pivotal for families accessing independent speech-language pathology services in Australia. Little is known of the facilitators and barriers that exist for accessing public funding for ... ...

    Abstract Purpose: Health funding provisions supported by governments are pivotal for families accessing independent speech-language pathology services in Australia. Little is known of the facilitators and barriers that exist for accessing public funding for speech-language pathology services through independent providers. This study aimed to investigate and describe the perceptions of speech-language pathologists in accessing public funding models (PFMs) for children and young persons with communication and swallowing needs within Australian independent practice.
    Method: Semi-structured qualitative interviews were conducted with twenty independent speech-language pathologists who had experience of PFMs in Australia. Digitally recorded interviews were transcribed verbatim and subjected to thematic analysis.
    Result: Data analysis revealed five superordinate and eighteen subordinate themes. The five superordinate themes were: (a) accessibility in securing funding provisions; (b) time as a commodity; (c) incongruence between funding provisions and speech-language pathology evidence; (d) trust as a multifaceted quality; and (e) consequences of PFMs.
    Conclusion: This original and timely research offers perceptive descriptions of the multifaceted facilitators and barriers for families seeking to access public funding for independent speech-language pathology services in Australia. Research findings illuminate challenges for the speech-language pathology profession. Accessibility to funding was identified as a major issue. Research findings suggest that current funding provisions do not align with the dosage required for evidence-based speech-language pathology management. Further, this research has highlighted the need for funding to be equitable, acceptable to stakeholders, and for services to be delivered in an efficient and sustainable manner. Future research is recommended to understand which Australian PFMs: (a) facilitate consumer access to speech-language pathology services; (b) enrich consumer experiences; and (c) align with scientific evidence to promote optimal outcomes.
    MeSH term(s) Child ; Humans ; Speech ; Pathologists ; Australia ; Communication Disorders ; Language ; Speech-Language Pathology
    Language English
    Publishing date 2023-06-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2402483-1
    ISSN 1754-9515 ; 1754-9507
    ISSN (online) 1754-9515
    ISSN 1754-9507
    DOI 10.1080/17549507.2023.2213864
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Molecular features for timely cancer diagnosis and treatment - tumors of the ovary, fallopian tube and endometrium.

    Gatius, Sonia / Matias Guiu, Xavier / Davidson, Ben

    Virchows Archiv : an international journal of pathology

    2023  Volume 484, Issue 2, Page(s) 339–351

    Abstract: Gynecologic pathology has moved, within only a few years, from being a diagnostic area devoid of molecular testing into a diagnostic discipline in which such analyses are becoming routine. The direct relevance of molecular characterization to the choice ... ...

    Abstract Gynecologic pathology has moved, within only a few years, from being a diagnostic area devoid of molecular testing into a diagnostic discipline in which such analyses are becoming routine. The direct relevance of molecular characterization to the choice of treatment of patients with carcinomas originating in both the uterus and adnexae makes it likely that such testing will only expand along with our understanding of the molecular make-up of these tumors. As a consequence, gynecologic pathologists have become an integral part of patient management, rather than lab personnel providing external services.In parallel, molecular testing is expanding as a tool for diagnosing rare tumors affecting these organs, including soft tissue tumors, sex cord-stromal tumors and germ cell tumors, as well as other rare entities. Increased knowledge in this area bears directly on the ability to diagnose these tumors in a reproducible manner, as well as recognize and consult on genetic diseases. Hopefully, despite the inherent difficulty in studying rare cancers, it will also translate into new therapeutic options for the malignant ones among these rare cancers.
    MeSH term(s) Humans ; Female ; Fallopian Tubes/pathology ; Carcinoma/pathology ; Ovarian Neoplasms/diagnosis ; Ovarian Neoplasms/genetics ; Ovarian Neoplasms/therapy ; Endometrium/pathology ; Fallopian Tube Neoplasms/diagnosis ; Fallopian Tube Neoplasms/genetics ; Fallopian Tube Neoplasms/therapy
    Language English
    Publishing date 2023-12-15
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 1184867-4
    ISSN 1432-2307 ; 0945-6317
    ISSN (online) 1432-2307
    ISSN 0945-6317
    DOI 10.1007/s00428-023-03710-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Irrigation and its wider regional impacts in Australia

    Davidson, Brian / Hellegers, Petra

    Water International

    2023  Volume 48, Issue 5

    Abstract: Is the evidence sufficiently strong enough to justify the belief that irrigation (water applied) has a beneficial socio-economic impact on people in regional Australia? Using correlation coefficients, it was found that while a strong relationship existed ...

    Abstract Is the evidence sufficiently strong enough to justify the belief that irrigation (water applied) has a beneficial socio-economic impact on people in regional Australia? Using correlation coefficients, it was found that while a strong relationship existed between water applied and irrigators’ incomes (0.91) and production (0.87), the links were much weaker to dryland farmers’ incomes (0.49), the wider total regional income (0.41) and total employment (0.42). Weak links were found to exist with employment density (0.24), per capita incomes (0.03) and a measure of well-being (0.11) of people living in regions where more water was applied.
    Keywords Australia ; Irrigation ; correlation coefficients ; regional impacts ; socio-economic well-being
    Language English
    Publishing country nl
    Document type Article ; Online
    ISSN 0250-8060
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top