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  1. Article ; Online: The karyometric signature is altered in fallopian tubes with serous tubal intraepithelial carcinoma.

    Rodriguez, Gustavo C / Yozwiak, Michael / Nelson, Omar L / Zhang, Hao Helen / Kim, Ahyoung Amy / Watkin, William / Barton, Jennifer K / Alberts, David S

    Gynecologic oncology

    2024  Volume 186, Page(s) 110–116

    Abstract: Objective: Recent evidence suggests that the fimbriated end of the fallopian tube harbors the precursor cells for many high-grade ovarian cancers, opening the door for development of better screening methods that directly assess the fallopian tube in ... ...

    Abstract Objective: Recent evidence suggests that the fimbriated end of the fallopian tube harbors the precursor cells for many high-grade ovarian cancers, opening the door for development of better screening methods that directly assess the fallopian tube in women at risk for malignancy. Previously we have shown that the karyometric signature is abnormal in the fallopian tube epithelium in women at hereditary risk of ovarian cancer. In this study, we sought to determine whether the karyometric signature in serous tubal intraepithelial carcinoma (STIC) is significantly different from normal, and whether an abnormal karyometric signature can be detected in histologically normal tubal epithelial cells adjacent to STIC lesions.
    Methods: The karyometric signature was measured in epithelial cells from the proximal and fimbriated portion of the fallopian tube in fallopian tube specimens removed from women at: 1) average risk for ovarian cancer undergoing surgery for benign gynecologic indications (n = 37), 2) hereditary risk of ovarian cancer (germline BRCA alterations) undergoing risk-reducing surgery (n = 44), and 3) diagnosed with fimbrial STICs (n = 17).
    Results: The karyometric signature in tubes with fimbrial STICs differed from that of tubes with benign histology. The degree of karyometric alteration increased with increasing proximity to fimbrial STICs, ranging from moderate in the proximal portion of the tube, to greatest in both normal appearing fimbrial cells near STICs as well as in fimbrial STIC lesions.
    Conclusion: These data demonstrate an abnormal karyometric signature in STICs that may extend beyond the STIC, potentially providing an opportunity for early detection of fallopian tube neoplasia.
    Language English
    Publishing date 2024-04-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 801461-9
    ISSN 1095-6859 ; 0090-8258
    ISSN (online) 1095-6859
    ISSN 0090-8258
    DOI 10.1016/j.ygyno.2024.04.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: SARS/CoV-2: Behavioral Host Manipulation.

    Cook, John R / Bennett, Kaylee V / Barton, Michael C / Platek, Steven M

    Advances in experimental medicine and biology

    2022  Volume 1353, Page(s) 71–80

    Abstract: Introduction: Though it has not been extensively studied, host manipulation has been documented for various pathogens. Examples of this phenomenon can be seen in cases of toxoplasmosis, rabies, and the influenza virus. An examination of the possible ... ...

    Abstract Introduction: Though it has not been extensively studied, host manipulation has been documented for various pathogens. Examples of this phenomenon can be seen in cases of toxoplasmosis, rabies, and the influenza virus. An examination of the possible means by which SARS/CoV-2 alters the behavior of its host to spread among populations is elaborated. Indirect evidence that serves as indicators of this phenomenon is presented.
    Methods: This is primarily a theoretical document. Many of the ideas raised are not amenable to direct testing due to ethical concerns. However, several indirect means by which to test the hypothesis are discussed. Primary data from cell phones regarding miles traveled, number of times leaving home, etc., are among the possible indirect measures.
    Results: The rapid ability of the SARS/CoV-2 virus to spread through society suggests that it may cause behavioral changes of the host to increase its transmission. Numerous cases of super spreader events are noted that have provided meaningful measures of host manipulation.
    Conclusion: In the case of SARS/CoV-2, the largest advantage of the pathogen is likely that between 50% and 70% of those infected are asymptomatic (John's Hopkins Coronavirus Resource Center, John's Hopkins University Corona Virus Resource Center. Available at https://coronavirus.jhu.edu/map.html , 2020). This component is a threat to elderly individuals and those immunocompromised who are more likely to have severe complications from the virus and die. To spread within these groups, a seemingly healthy host is necessary to carry the virus to them. The goal of the virus is not to kill the host, but to survive and reproduce.
    MeSH term(s) Aged ; Behavior Control ; COVID-19 ; Humans ; SARS-CoV-2 ; Severe Acute Respiratory Syndrome
    Language English
    Publishing date 2022-02-09
    Publishing country United States
    Document type Journal Article
    ISSN 2214-8019 ; 0065-2598
    ISSN (online) 2214-8019
    ISSN 0065-2598
    DOI 10.1007/978-3-030-85113-2_4
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  3. Article ; Online: Systems metabolic engineering upgrades Corynebacterium glutamicum to high-efficiency cis, cis-muconic acid production from lignin-based aromatics.

    Weiland, Fabia / Barton, Nadja / Kohlstedt, Michael / Becker, Judith / Wittmann, Christoph

    Metabolic engineering

    2022  Volume 75, Page(s) 153–169

    Abstract: ... alkaline oxidative depolymerization. Here, we metabolically engineered C. glutamicum towards cis, cis ... producer C. glutamicum MA-2, systems metabolic engineering first discovered an unspecific aromatic ...

    Abstract Lignin displays a highly challenging renewable. To date, massive amounts of lignin, generated in lignocellulosic processing facilities, are for the most part merely burned due to lacking value-added alternatives. Aromatic lignin monomers of recognized relevance are in particular vanillin, and to a lesser extent vanillate, because they are accessible at high yield from softwood-lignin using industrially operated alkaline oxidative depolymerization. Here, we metabolically engineered C. glutamicum towards cis, cis-muconate (MA) production from these key aromatics. Starting from the previously created catechol-based producer C. glutamicum MA-2, systems metabolic engineering first discovered an unspecific aromatic aldehyde reductase that formed aromatic alcohols from vanillin, protocatechualdehyde, and p- hydroxybenzaldehyde, and was responsible for the conversion up to 57% of vanillin into vanillyl alcohol. The alcohol was not re-consumed by the microbe later, posing a strong drawback on the producer. The identification and subsequent elimination of the encoding fudC gene completely abolished vanillyl alcohol formation. Second, the initially weak flux through the native vanillin and vanillate metabolism was enhanced up to 2.9-fold by implementing synthetic pathway modules. Third, the most efficient protocatechuate decarboxylase AroY for conversion of the midstream pathway intermediate protocatechuate into catechol was identified out of several variants in native and codon optimized form and expressed together with the respective helper proteins. Fourth, the streamlined modules were all genomically combined which yielded the final strain MA-9. MA-9 produced bio-based MA from vanillin, vanillate, and seven structurally related aromatics at maximum selectivity. In addition, MA production from softwood-based vanillin, obtained through alkaline depolymerization, was demonstrated.
    MeSH term(s) Lignin/metabolism ; Metabolic Engineering ; Corynebacterium glutamicum/genetics ; Corynebacterium glutamicum/metabolism ; Catechols/metabolism
    Chemical Substances Lignin (9005-53-2) ; vanillin (CHI530446X) ; vanillyl alcohol (X7EA1JUA6M) ; muconic acid (3KD92ZL2KH) ; Catechols ; catechol (LF3AJ089DQ)
    Language English
    Publishing date 2022-12-20
    Publishing country Belgium
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1470383-x
    ISSN 1096-7184 ; 1096-7176
    ISSN (online) 1096-7184
    ISSN 1096-7176
    DOI 10.1016/j.ymben.2022.12.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Earth Systems to Anthropocene Systems: An Evolutionary, System-of-Systems, Convergence Paradigm for Interdependent Societal Challenges.

    Little, John C / Kaaronen, Roope O / Hukkinen, Janne I / Xiao, Shuhai / Sharpee, Tatyana / Farid, Amro M / Nilchiani, Roshanak / Barton, C Michael

    Environmental science & technology

    2023  Volume 57, Issue 14, Page(s) 5504–5520

    Abstract: Humans have made profound changes to the Earth. The resulting societal challenges of the Anthropocene (e.g., climate change and impacts, renewable energy, adaptive infrastructure, disasters, pandemics, food insecurity, and biodiversity loss) are complex ... ...

    Abstract Humans have made profound changes to the Earth. The resulting societal challenges of the Anthropocene (e.g., climate change and impacts, renewable energy, adaptive infrastructure, disasters, pandemics, food insecurity, and biodiversity loss) are complex and systemic, with causes, interactions, and consequences that cascade across a globally connected system of systems. In this Critical Review, we turn to our "origin story" for insight, briefly tracing the formation of the Universe and the Earth, the emergence of life, the evolution of multicellular organisms, mammals, primates, and humans, as well as the more recent societal transitions involving agriculture, urbanization, industrialization, and computerization. Focusing on the evolution of the Earth, genetic evolution, the evolution of the brain, and cultural evolution, which includes technological evolution, we identify a nested evolutionary sequence of geophysical, biophysical, sociocultural, and sociotechnical systems, emphasizing the causal mechanisms that first formed, and then transformed, Earth systems into Anthropocene systems. Describing how the Anthropocene systems coevolved, and briefly illustrating how the ensuing societal challenges became tightly integrated across multiple spatial, temporal, and organizational scales, we conclude by proposing an evolutionary, system-of-systems, convergence paradigm for the entire family of interdependent societal challenges of the Anthropocene.
    MeSH term(s) Animals ; Humans ; Agriculture ; Biodiversity ; Urbanization ; Mammals
    Language English
    Publishing date 2023-03-31
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.2c06203
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Experimental Identification of Potential Martian Biosignatures in Open and Closed Systems.

    Ramkissoon, Nisha K / Macey, Michael C / Kucukkilic-Stephens, Ezgi / Barton, Timothy / Steele, Andrew / Johnson, David N / Stephens, Ben P / Schwenzer, Susanne P / Pearson, Victoria K / Olsson-Francis, Karen

    Astrobiology

    2024  

    Abstract: NASA's Perseverance and ESA's Rosalind Franklin rovers have the scientific goal of searching for evidence of ancient life on Mars. Geochemical biosignatures that form because of microbe-mineral interactions could play a key role in achieving this, as ... ...

    Abstract NASA's Perseverance and ESA's Rosalind Franklin rovers have the scientific goal of searching for evidence of ancient life on Mars. Geochemical biosignatures that form because of microbe-mineral interactions could play a key role in achieving this, as they can be preserved for millions of years on Earth, and the same could be true for Mars. Previous laboratory experiments have explored the formation of biosignatures under closed systems, but these do not represent the open systems that are found in natural martian environments, such as channels and lakes. In this study, we have conducted environmental simulation experiments using a global regolith simulant (OUCM-1), a thermochemically modelled groundwater, and an anaerobic microbial community to explore the formation of geochemical biosignatures within plausible open and closed systems on Mars. This initial investigation showed differences in the diversity of the microbial community developed after 28 days. In an open-system simulation (flow-through experiment), the acetogenic
    Language English
    Publishing date 2024-04-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2047736-3
    ISSN 1557-8070 ; 1531-1074
    ISSN (online) 1557-8070
    ISSN 1531-1074
    DOI 10.1089/ast.2023.0013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Repeatability and reproducibility of magnetic resonance imaging-based radiomic features in rectal cancer.

    Rai, Robba / Barton, Michael B / Chlap, Phillip / Liney, Gary / Brink, Carsten / Vinod, Shalini / Heinke, Monique / Trada, Yuvnik / Holloway, Lois C

    Journal of medical imaging (Bellingham, Wash.)

    2022  Volume 9, Issue 4, Page(s) 44005

    Abstract: Purpose: ...

    Abstract Purpose:
    Language English
    Publishing date 2022-08-18
    Publishing country United States
    Document type Journal Article
    ISSN 2329-4302
    ISSN 2329-4302
    DOI 10.1117/1.JMI.9.4.044005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: COVID-19 and collective trauma: Implementing a trauma-informed model of care for post-COVID patients.

    Barton, Carly / Troy, Lauren / Teoh, Alan / Spencer, Lissa / Reeves, Jack / Cram, Vincent / Wai, Michael / Jones, Lynette

    Journal of advanced nursing

    2024  

    Abstract: Aim: To describe the implementation of a trauma-informed model of care in the Post COVID Respiratory Clinic of a large tertiary referral centre in NSW.: Design: Discussion paper.: Data sources: Evidence gathered from a literature search (2008-2022) ...

    Abstract Aim: To describe the implementation of a trauma-informed model of care in the Post COVID Respiratory Clinic of a large tertiary referral centre in NSW.
    Design: Discussion paper.
    Data sources: Evidence gathered from a literature search (2008-2022) was used to develop a framework for management of patients presenting to this Post COVID Respiratory Clinic. This paper outlines the personal reflections of the clinic staff as they developed and implemented this framework. Ethical approval was obtained to report the data collected from patient reviews.
    Discussion: The literature highlights the high prevalence of trauma in patients following COVID-19 infection, as well as the larger population both during and after the pandemic. This experience of trauma was observed in patients seen within the clinic, indicating a need for specialized care. In response, a trauma-informed model of care was implemented.
    Conclusion: Reconceptualizing COVID-19 as a 'collective trauma' can help healthcare workers understand the needs of post-COVID patients and enable them to respond empathetically. A trauma-informed model is complementary to this cohort as it specifically addresses vulnerable populations, many of whom have been further marginalized by the pandemic.
    Implications for nursing and patient care: Frontline healthcare workers, particularly nurses, are well positioned to implement trauma-informed care due to their high-level of patient contact. Adequate allocation of resources and investment in staff is essential to ensure such care can be provided.
    Impact: The COVID-19 pandemic has led to adverse physical and mental health outcomes for many. Trauma-informed care is a way to promote reengagement with the healthcare system in this group. Post COVID patients globally may benefit from this approach, as it aims to build trust and independence.
    Patient or public contribution: Feedback was sought from a patient representative to ensure this paper adequately reflected the experience of the post-COVID patient.
    Language English
    Publishing date 2024-01-31
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 197634-5
    ISSN 1365-2648 ; 0309-2402
    ISSN (online) 1365-2648
    ISSN 0309-2402
    DOI 10.1111/jan.16076
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  8. Article ; Online: Development of an age- and comorbidity- adjusted optimal radiotherapy utilisation rate for lung, rectal, prostate and cervical cancers.

    Mackenzie, Penny / Vajdic, Claire / Delaney, Geoff / Comans, Tracy / Agar, Meera / Gabriel, Gabriel / Barton, Michael

    Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology

    2023  Volume 188, Page(s) 109862

    Abstract: Introduction: Optimal radiotherapy utilisation (RTU) modelling estimates the proportion of people with cancer who would benefit from radiotherapy. Assessment of comorbidities is an important component of the assessment of suitability for radiotherapy in ...

    Abstract Introduction: Optimal radiotherapy utilisation (RTU) modelling estimates the proportion of people with cancer who would benefit from radiotherapy. Assessment of comorbidities is an important component of the assessment of suitability for radiotherapy in addition to chronological age and life expectancy. Comorbidities have not been considered in previous optimal RTU models. We aimed to develop an age- and comorbidity- adjusted optimal RTU model for patients with lung, rectal, prostate, and cervical cancer, and compare them to actual RTU rates, with a particular focus on those aged 80+ years, METHODS: New South Wales (NSW) Cancer Registry data (2010-2014) linked to radiotherapy data (2010-2015) and hospitalisation data (2008-2015) were used to determine the number of patients diagnosed with lung, rectal, prostate and cervical cancer. The Cancer Specific C3 'all sites' comorbidity index was calculated from hospital diagnosis data for each patient to determine suitability for radiotherapy. The index was then incorporated into a tumour site-specific decision tree model. The actual RTU was also calculated using the linked datasets.
    Results: 14,696 patients were diagnosed with non-small cell lung cancer (NSCLC), 1839 with small cell lung cancer (SCLC), 5551 with rectal cancer, 30,935 with prostate cancer and 1216 with cervical cancer in New South Wales from 2010-2014. The proportion of patients aged 80+ years at cancer diagnosis was 25% (3603 patients), 15% (279 patients), 17% (943 patients), 12% (3745 patients), and 7% (88 patients) respectively. The age- and comorbidity- adjusted optimal RTU rates for patients aged 80+ years using the C3 index were 49% (NSCLC), 49% (SCLC), 43% (rectal), 51% (prostate) and 40% (cervical). The corresponding actual RTU rates for patients aged 80+ years were 25%, 32%, 27%, 16%, and 56%.
    Conclusion: Even after adjusting for age and comorbidities, the actual radiotherapy utilisation rates were lower than optimal radiotherapy utilisation rates in patients aged 80+ years except for patients with cervical cancer. This warrants further assessment and research into reasons and solutions.
    Language English
    Publishing date 2023-08-22
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 605646-5
    ISSN 1879-0887 ; 0167-8140
    ISSN (online) 1879-0887
    ISSN 0167-8140
    DOI 10.1016/j.radonc.2023.109862
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  9. Article: Compressibility of Osteochondral Autograft Transfer Donor Grafts: A Comparison of Different Donor Regions and How Much Shortening Occurs of Plugs After Impaction.

    Massey, Patrick A / Kushner, Rachel / Miller, Cole / Lowery, Michael / Barton, Richard S / Solitro, Giovanni F

    Orthopaedic journal of sports medicine

    2023  Volume 11, Issue 1, Page(s) 23259671221147329

    Abstract: Background: Osteochondral autograft transfer (OAT) is a useful technique for full-thickness cartilage lesions of the distal femur. Various techniques recommend harvesting a plug 2 mm longer than the recipient hole to allow for graft impaction. Grafts ... ...

    Abstract Background: Osteochondral autograft transfer (OAT) is a useful technique for full-thickness cartilage lesions of the distal femur. Various techniques recommend harvesting a plug 2 mm longer than the recipient hole to allow for graft impaction. Grafts with limited compressibility may not sit flush when impacted.
    Purpose: To compare the compressibility/shortening of OAT donor plug regions from the distal femur of human cadaveric knees after impaction.
    Study design: Controlled laboratory study.
    Methods: A total of 20 cadaveric knees (mean age, 70.3 ± 8.4 years) were divided into 4 donor regions: medial intercondylar (IC) notch, lateral IC notch, medial trochlea, and lateral trochlea. Each region was subdivided into 4 zones: far superior (FSZ), middle superior (MSZ), middle inferior (MIZ), and far inferior (FIZ). A total of 320 grafts (6-mm diameter, 15-mm depth) were extracted, and a custom-built machine was used to strike the graft 5 times using a predetermined energy of 0.11 J. The graft length was measured initially and after each impact. Statistical analysis of the compressibility for each of the 4 regions and all 16 zones was performed utilizing analysis of variance, with post hoc testing using the Fisher's least significant difference.
    Results: Compression in the lateral IC notch, medial IC notch, medial trochlea, and lateral trochlea was 2.4 ± 1.5, 2.1 ± 0.7, 3.1 ± 2.2, and 2.1 ± 0.6 mm, respectively, with significant differences between the 4 regions (
    Conclusion: Compressibility varied between OAT donor sites in the distal femur. OAT donor grafts showed the highest compressibility in the medial trochlea (3.1 mm) and lateral IC notch FSZ (3.0 mm).
    Clinical relevance: The lateral trochlea, medial IC notch, and the lower zones of the lateral IC notch grafts should not be oversized more than 2 mm in length, as these grafts may not compress adequately.
    Language English
    Publishing date 2023-01-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2706251-X
    ISSN 2325-9671
    ISSN 2325-9671
    DOI 10.1177/23259671221147329
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  10. Article ; Online: Gestational hypertension and "severe" disease: time for a change.

    Clark, Steven L / Saade, George A / Tolcher, Mary C / Belfort, Michael A / Rouse, Dwight J / Barton, John R / Silver, Robert M / Sibai, Baha M

    American journal of obstetrics and gynecology

    2022  Volume 228, Issue 5, Page(s) 547–552

    Abstract: Our understanding and management of gestational hypertension and its variants are substantially hindered by a reliance on antiquated terminology and on practice recommendations based largely on tradition rather than outcomes-based evidence. ... ...

    Abstract Our understanding and management of gestational hypertension and its variants are substantially hindered by a reliance on antiquated terminology and on practice recommendations based largely on tradition rather than outcomes-based evidence. Unsurprisingly, gestational hypertension remains a major contributor to maternal and neonatal morbidity and mortality rates, with little improvement seen over the past half century except as it relates to better newborn care. Reliance on a binary classification of vastly disparate types and degrees of organ dysfunction (severe or not severe) and the use of nonphysiological and largely arbitrary gestational age cutoffs are particularly problematic. If this situation is to improve, it will be necessary to abandon current misleading terminology and non-evidence-based traditional practice patterns and start again, building on management approaches validated by outcomes-based data.
    MeSH term(s) Pregnancy ; Infant, Newborn ; Female ; Humans ; Hypertension, Pregnancy-Induced/therapy ; Gestational Age ; Pre-Eclampsia ; Hypertension
    Language English
    Publishing date 2022-11-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80016-8
    ISSN 1097-6868 ; 0002-9378
    ISSN (online) 1097-6868
    ISSN 0002-9378
    DOI 10.1016/j.ajog.2022.11.1280
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