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  1. AU="Nixon, Ian J"
  2. AU="Huang Xiaoting"
  3. AU="Colturato, Virgílio Antônio Rensi"
  4. AU="Mahfouz, Amira Y"
  5. AU="Ayyappan, Sabarish"
  6. AU=Wang Kevin L-C
  7. AU="Lukas T. Hirschwald"
  8. AU="Morley-Davies, A"
  9. AU="Felsberg, Gary J"
  10. AU="Bogen, Oliver"
  11. AU="de Portu, Simona"
  12. AU="Janssens, Rick"

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  1. Artikel: From hormone replacement therapy to regenerative scaffolds: A review of current and novel primary hypothyroidism therapeutics.

    Heim, Maria / Nixon, Ian J / Emmerson, Elaine / Callanan, Anthony

    Frontiers in endocrinology

    2022  Band 13, Seite(n) 997288

    Abstract: Primary hypothyroidism severely impacts the quality of life of patients through a decrease in the production of the thyroid hormones T3 and T4, leading to symptoms affecting cardiovascular, neurological, cognitive, and metabolic function. The incidence ... ...

    Abstract Primary hypothyroidism severely impacts the quality of life of patients through a decrease in the production of the thyroid hormones T3 and T4, leading to symptoms affecting cardiovascular, neurological, cognitive, and metabolic function. The incidence rate of primary hypothyroidism is expected to increase in the near future, partially due to increasing survival of patients that have undergone radiotherapy for head and neck cancer, which induces this disease in over half of those treated. The current standard of care encompasses thyroid hormone replacement therapy, traditionally in the form of synthetic T4. However, there is mounting evidence that this is unable to restore thyroid hormone signaling in all tissues due to often persistent symptoms. Additional complications are also present in the form of dosage difficulties, extensive drug interactions and poor patience compliance. The alternative therapeutic approach employed in the past is combination therapy, which consists of administration of both T3 and T4, either synthetic or in the form of desiccated thyroid extract. Here, issues are present regarding the lack of regulation concerning formulation and lack of data regarding safety and efficacy of these treatment methods. Tissue engineering and regenerative medicine have been applied in conjunction with each other to restore function of various tissues. Recently, these techniques have been adapted for thyroid tissue, primarily through the fabrication of regenerative scaffolds. Those currently under investigation are composed of either biopolymers or native decellularized extracellular matrix (dECM) in conjunction with either primary thyrocytes or stem cells which have undergone directed thyroid differentiation. Multiple of these scaffolds have successfully restored an athyroid phenotype
    Mesh-Begriff(e) Humans ; Thyroxine/therapeutic use ; Hypothyroidism/drug therapy ; Hypothyroidism/diagnosis ; Thyroid (USP)/therapeutic use ; Quality of Life ; Hormone Replacement Therapy/methods ; Thyroid Hormones/therapeutic use
    Chemische Substanzen Thyroxine (Q51BO43MG4) ; Thyroid (USP) ; Thyroid Hormones
    Sprache Englisch
    Erscheinungsdatum 2022-10-05
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2592084-4
    ISSN 1664-2392
    ISSN 1664-2392
    DOI 10.3389/fendo.2022.997288
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: A study of variation in therapeutic approach to low-risk differentiated thyroid cancer in the UK.

    Maniam, Pavithran / Ishii, Hiro / Stechman, Michael J / Watkinson, John / Farnell, Kate / Kim, Dae / Nixon, Ian J

    The Journal of laryngology and otology

    2023  Band 138, Heft 1, Seite(n) 83–88

    Abstract: Background: The British Thyroid Association and American Thyroid Association guideline definitions for low-risk differentiated thyroid cancers are susceptible to differing interpretations, resulting in different clinical management in the UK.: ... ...

    Abstract Background: The British Thyroid Association and American Thyroid Association guideline definitions for low-risk differentiated thyroid cancers are susceptible to differing interpretations, resulting in different clinical management in the UK.
    Objective: To explore the national effect of these guidelines on the management of low-risk differentiated thyroid cancers.
    Methods: Anonymised questionnaires were sent to multidisciplinary teams performing thyroidectomies in the UK. Risk factors that multidisciplinary teams considered important when managing low-risk differentiated thyroid cancers were established.
    Results: Most surgeons (71 out of 75; 94.7 per cent) confirmed they were core multidisciplinary team members. More than 80 per cent of respondents performed at least 30 hemi- and/or total thyroidectomies per annum. A majority of multidisciplinary teams (50 out of 75; 66.7 per cent) followed British Thyroid Association guidelines. Risk factors considered important when managing low-risk differentiated thyroid cancers included: type of tumour histology findings (87.8 per cent), tumour size of greater than 4 cm (86.5 per cent), tumour stage T
    Conclusion: Management of low-risk differentiated thyroid cancers is highly variable, leading to a heterogeneous patient experience.
    Mesh-Begriff(e) Humans ; Thyroid Neoplasms/epidemiology ; Thyroid Neoplasms/surgery ; Thyroidectomy/methods ; Adenocarcinoma ; United Kingdom/epidemiology
    Sprache Englisch
    Erscheinungsdatum 2023-05-17
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 218299-3
    ISSN 1748-5460 ; 0022-2151
    ISSN (online) 1748-5460
    ISSN 0022-2151
    DOI 10.1017/S0022215123000841
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Incremental value of cardiac imaging in patients presenting to the emergency department with chest pain and without ST-segment elevation: a multicenter study.

    Kaul, Sanjiv / Senior, Roxy / Firschke, Christian / Wang, Xin-Qun / Lindner, Jonathan / Villanueva, Flordeliza S / Firozan, Soroosh / Kontos, Michael C / Taylor, Allen / Nixon, Ian J / Watson, Denny D / Harrell, Frank E

    American heart journal

    2004  Band 148, Heft 1, Seite(n) 129–136

    Abstract: Background: We hypothesized that imaging of regional myocardial function (RF) and perfusion (PER) will add incremental value for both diagnosis and short-term prognosis to routine demographic, clinical, and electrocardiographic findings in patients ... ...

    Abstract Background: We hypothesized that imaging of regional myocardial function (RF) and perfusion (PER) will add incremental value for both diagnosis and short-term prognosis to routine demographic, clinical, and electrocardiographic findings in patients presenting to the emergency department (ED) with chest pain and without ST-segment elevation on the electrocardiogram.
    Methods: We compared contrast echocardiography (CE) with gated single-photon emission computed tomography (SPECT) for this purpose. Both CE and SPECT readings included separate and composite assessments of both RF and PER. Adverse events in the first 48 hours after ED presentation included acute myocardial infarction, emergent revascularization, and cardiac-related death.
    Results: Concordance between CE and SPECT was 77% (73% to 82%) for all territories, with a higher concordance for the anterior wall of 84% (78% to 89%). Of the 203 patients recruited for the study, 38 (19%) had a cardiac event within 48 hours of ED presentation: 21 had acute myocardial infarction, 16 underwent an urgent revascularization procedure, and 1 died. In multivariate logistic regression models, the number of abnormal segments on CE and SPECT were significant predictors (P <.05) of cardiac events. The composite scores on CE provided 17% incremental information (P =.009, n = 203) and gated SPECT provided 23.5% additional information (P =.020, n = 163) for predicting cardiac events compared with routine demographic, clinical, and electrocardiographic variables. RF and composite evaluation was superior on SPECT compared with CE, whereas PER alone was not.
    Conclusions: Cardiac imaging of RF and PER at the time of ED presentation offers substantially greater diagnostic and prognostic information for early cardiac events in patients presenting to the ED with chest pain and no ST elevation than does the routine demographic, clinical, and electrocardiographic assessment.
    Mesh-Begriff(e) Chest Pain/etiology ; Coronary Disease/diagnosis ; Coronary Disease/diagnostic imaging ; Echocardiography ; Electrocardiography ; Emergency Service, Hospital ; Female ; Heart/diagnostic imaging ; Humans ; Logistic Models ; Male ; Middle Aged ; Prognosis ; Prospective Studies ; Radiopharmaceuticals ; Sensitivity and Specificity ; Single-Blind Method ; Technetium Tc 99m Sestamibi ; Tomography, Emission-Computed, Single-Photon
    Chemische Substanzen Radiopharmaceuticals ; Technetium Tc 99m Sestamibi (971Z4W1S09)
    Sprache Englisch
    Erscheinungsdatum 2004-07
    Erscheinungsland United States
    Dokumenttyp Clinical Trial ; Comparative Study ; Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 80026-0
    ISSN 1097-6744 ; 0002-8703
    ISSN (online) 1097-6744
    ISSN 0002-8703
    DOI 10.1016/j.ahj.2003.12.041
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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