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  1. Article ; Online: The Impact of COVID-19 on Clinical Trial Execution at the Dana-Farber Cancer Institute.

    Tolaney, Sara M / Lydon, Christine A / Li, Tianyu / Dai, Jiale / Standring, Andrea / Legor, Kristen A / Caparrotta, Caryn M / Schenker, Matthew P / Glazer, Daniel I / Tayob, Nabihah / DuBois, Steven G / Meyerhardt, Jeffrey A / Taplin, Mary-Ellen / Johnson, Bruce E

    Journal of the National Cancer Institute

    2020  Volume 113, Issue 11, Page(s) 1453–1459

    Abstract: ... from oncology clinical trials at Dana-Farber Cancer Institute from January 1, 2018, to June 30, 2020, including ... blood collections decreased dramatically after Dana-Farber Cancer Institute implemented COVID-19-related ...

    Abstract Interventions designed to limit the spread of coronavirus disease 2019 (COVID-19) are having profound effects on the delivery of health care, but data showing the impact on oncology clinical trial enrollment, treatment, and monitoring are limited. We prospectively tracked relevant data from oncology clinical trials at Dana-Farber Cancer Institute from January 1, 2018, to June 30, 2020, including the number of open trials, new patient enrollments, in-person and virtual patient visits, dispensed investigational infusions, dispensed or shipped oral investigational agents, research biopsies, and blood samples. We ascertained why patients came off trials and determined on-site clinical research staffing levels. We used 2-sided Wilcoxon rank sum tests to assess the statistical significance of the reported changes. Nearly all patients on interventional treatment trials were maintained, and new enrollments continued at just under one-half the prepandemic rate. The median number of investigational prescriptions shipped to patients increased from 0 to 74 (range = 22-107) per week from March to June 2020. The median number of telemedicine appointments increased from 0 to 107 (range = 33-267) per week from March to June 2020. Research biopsies and blood collections decreased dramatically after Dana-Farber Cancer Institute implemented COVID-19-related policies in March 2020. The number of research nurses and clinical research coordinators on site also decreased after March 2020. Substantial changes were required to safely continue clinical research during the pandemic, yet we observed no increases in serious adverse events or major violations related to drug dosing. Lessons learned from adapting research practices during COVID-19 can inform industry sponsors and governmental agencies to consider altering practices to increase operational efficiency and convenience for patients.
    MeSH term(s) COVID-19/epidemiology ; COVID-19/virology ; Clinical Trials as Topic/organization & administration ; Clinical Trials as Topic/statistics & numerical data ; Humans ; Neoplasms/therapy ; Neoplasms/virology ; Research Subjects/psychology ; Research Subjects/statistics & numerical data ; SARS-CoV-2/physiology ; United States/epidemiology
    Keywords covid19
    Language English
    Publishing date 2020-09-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2992-0
    ISSN 1460-2105 ; 0027-8874 ; 0198-0157
    ISSN (online) 1460-2105
    ISSN 0027-8874 ; 0198-0157
    DOI 10.1093/jnci/djaa144
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The sialidase inhibitor, DANA, reduces Porphyromonas gingivalis pathogenicity and exerts anti-inflammatory effects: An in vitro and in vivo experiment.

    Yu, Shiwen / Fan, Xiaomiao / Zheng, Shaowen / Lin, Li / Liu, Jingbo / Pan, Yaping / Li, Chen

    Journal of periodontology

    2020  Volume 92, Issue 2, Page(s) 286–297

    Abstract: ... deoxy-2,3-didehydro-N-acetylneuraminic acid (DANA), in vitro and in vivo.: Methods: The effects ... of DANA on P. gingivalis sialidase and cell viability were determined, and the effects of DANA on P ... of DANA on LPS-induced macrophages were assessed by measurement of tumor necrosis factor-alpha (TNF-α ...

    Abstract Background: Sialidase has an important role in the pathogenesis of periodontitis and Porphyromonas gingivalis is a sialidase-producing organism implicated in periodontitis development. The aim of this study was to evaluate the anti-virulence and anti-inflammatory properties of the sialidase inhibitor, 2-deoxy-2,3-didehydro-N-acetylneuraminic acid (DANA), in vitro and in vivo.
    Methods: The effects of DANA on P. gingivalis sialidase and cell viability were determined, and the effects of DANA on P. gingivalis virulence were evaluated by assessment of growth curves, cell morphology, biofilm formation, fimbriae gene expression, and gingipains and lipopolysaccharide (LPS) activity. Anti-inflammatory effects of DANA on LPS-induced macrophages were assessed by measurement of tumor necrosis factor-alpha (TNF-α), interleukin (IL-1β), inducible nitric oxide synthase (iNOS) secretions. The effect of DANA on P. gingivalis-induced periodontitis in rats was analyzed by radiography, stereoscopic microscopy, histopathology, and immunohistochemistry.
    Results: Sialidase inhibition rate of 1mM DANA was 72.01%. Compared with untreated controls, treatment with DANA inhibited P. gingivalis growth and biofilm formation, and significantly decreased expression of the fimA, fimR, and fimS genes, as well as gingipains activity. DANA did not influence macrophage viability, but significantly inhibited TNF-α, IL-1β, and iNOS production in LPS-stimulated macrophages. In the periodontitis rat model, DANA prevented alveolar bone absorption and inhibited TNF-α and IL-1β production.
    Conclusion: DANA can reduce the growth, the biofilm formation and the virulence of P. gingivalis and exhibits anti-inflammatory effects, as well as effects against rat periodontitis, suggesting that DANA should be considered for development as a new adjunctive treatment for periodontitis.
    MeSH term(s) Animals ; Anti-Inflammatory Agents/pharmacology ; Gingipain Cysteine Endopeptidases ; Lipopolysaccharides ; Neuraminidase ; Porphyromonas gingivalis ; Rats ; Virulence
    Chemical Substances Anti-Inflammatory Agents ; Gingipain Cysteine Endopeptidases ; Lipopolysaccharides ; Neuraminidase (EC 3.2.1.18)
    Language English
    Publishing date 2020-07-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 390921-9
    ISSN 1943-3670 ; 0022-3492 ; 1049-8885 ; 0095-960X
    ISSN (online) 1943-3670
    ISSN 0022-3492 ; 1049-8885 ; 0095-960X
    DOI 10.1002/JPER.19-0688
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The Dana-Farber CISNET Model for Breast Cancer Screening Strategies: An Update.

    Lee, Sandra J / Li, Xiaoxue / Huang, Hui / Zelen, Marvin

    Medical decision making : an international journal of the Society for Medical Decision Making

    2018  Volume 38, Issue 1_suppl, Page(s) 44S–53S

    Abstract: Background: We present updated features to a model developed by Dana-Farber investigators ...

    Abstract Background: We present updated features to a model developed by Dana-Farber investigators within the Cancer Intervention and Surveillance Modeling Network (CISNET). The initial model was developed to evaluate the impact of mammography screening strategies.
    Methods: This major update includes the incorporation of ductal carcinoma in situ (DCIS) as part of the natural history of breast cancer. The updated model allows DCIS in the pre-clinical state to regress to undetectable early-stage DCIS, or to transition to invasive breast cancer, or to clinical DCIS. We summarize model assumptions for DCIS natural history and model parameters. Another new development is the derivation of analytical expressions for overdiagnosis. Overdiagnosis refers to mammographic identification of breast cancer that would never have resulted in disease symptoms in the patient's remaining lifetime (i.e., lead time longer than residual survival time). This is an inevitable consequence of early detection. Our model uniquely assesses overdiagnosis using an analytical formulation. We derive the lead time distribution resulting from the early detection of invasive breast cancer and DCIS, and formulate the analytical expression for overdiagnosis.
    Results: This formulation was applied to assess overdiagnosis from mammography screening. Other model updates involve implementing common model input parameters with updated treatment dissemination and effectiveness, and improved mammography performance. Lastly, the model was expanded to incorporate subgroups by breast density and molecular subtypes.
    Conclusions: The incorporation of DCIS and subgroups and the derivation of an overdiagnosis estimation procedure improve the model for evaluating mammography screening programs.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Breast Density ; Breast Neoplasms/diagnostic imaging ; Breast Neoplasms/epidemiology ; Breast Neoplasms/pathology ; Carcinoma, Intraductal, Noninfiltrating/diagnostic imaging ; Carcinoma, Intraductal, Noninfiltrating/epidemiology ; Computer Simulation ; Early Detection of Cancer/methods ; Female ; Humans ; Mammography/statistics & numerical data ; Massachusetts/epidemiology ; Medical Overuse/statistics & numerical data ; Middle Aged ; Models, Statistical ; Risk Assessment/methods
    Language English
    Publishing date 2018-03-19
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 604497-9
    ISSN 1552-681X ; 0272-989X
    ISSN (online) 1552-681X
    ISSN 0272-989X
    DOI 10.1177/0272989X17741634
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: The Impact of COVID-19 on Clinical Trial Execution at the Dana-Farber Cancer Institute

    Tolaney, Sara M / Lydon, Christine A / Li, Tianyu / Dai, Jiale / Standring, Andrea / Legor, Kristen A / Caparrotta, Caryn M / Schenker, Matthew P / Glazer, Daniel I / Tayob, Nabihah / DuBois, Steven G / Meyerhardt, Jeffrey A / Taplin, Mary-Ellen / Johnson, Bruce E

    J. natl. cancer inst

    Abstract: ... limited. We prospectively tracked relevant data from oncology clinical trials at Dana-Farber Cancer ...

    Abstract Interventions designed to limit the spread of COVID-19 are having profound effects on the delivery of healthcare, but data showing the impact on oncology clinical trial enrollment, treatment, and monitoring are limited. We prospectively tracked relevant data from oncology clinical trials at Dana-Farber Cancer Institute (DFCI) from January 1, 2018 to June 30, 2020, including the number of open trials, new patient enrollments, in-person and virtual patient visits, dispensed investigational infusions, dispensed/shipped oral investigational agents, research biopsies, and blood samples. We ascertained why patients came off trials and determined on-site clinical research staffing levels. We used two-sided Wilcoxon rank sum tests to assess the statistical significance of the reported changes. Nearly all patients on interventional treatment trials were maintained, and new enrollments continued at just under half the pre-pandemic rate. The median number of investigational prescriptions shipped to patients increased from 0-74 (range: 22-107) per week from March-June 2020. The median number of telemedicine appointments increased from 0-107 (range: 33-267) per week from March-June 2020. Research biopsies and blood collections decreased dramatically after DFCI implemented COVID-19-related policies in March 2020. The number of research nurses and clinical research coordinators on-site also decreased after March 2020. Substantial changes were required to safely continue clinical research during the pandemic; yet, we observed no increases in serious adverse events or major violations related to drug dosing. Lessons learned from adapting research practices during COVID-19 can inform industry sponsors and governmental agencies to consider altering practices to increase operational efficiency and convenience for patients.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #787221
    Database COVID19

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  5. Article ; Online: The Impact of COVID-19 on Clinical Trial Execution at the Dana-Farber Cancer Institute

    Tolaney, Sara M / Lydon, Christine A / Li, Tianyu / Dai, Jiale / Standring, Andrea / Legor, Kristen A / Caparrotta, Caryn M / Schenker, Matthew P / Glazer, Daniel I / Tayob, Nabihah / DuBois, Steven G / Meyerhardt, Jeffrey A / Taplin, Mary-Ellen / Johnson, Bruce E

    JNCI: Journal of the National Cancer Institute ; ISSN 0027-8874 1460-2105

    2020  

    Abstract: ... limited. We prospectively tracked relevant data from oncology clinical trials at Dana-Farber Cancer ...

    Abstract Abstract Interventions designed to limit the spread of COVID-19 are having profound effects on the delivery of healthcare, but data showing the impact on oncology clinical trial enrollment, treatment, and monitoring are limited. We prospectively tracked relevant data from oncology clinical trials at Dana-Farber Cancer Institute (DFCI) from January 1, 2018 to June 30, 2020, including the number of open trials, new patient enrollments, in-person and virtual patient visits, dispensed investigational infusions, dispensed/shipped oral investigational agents, research biopsies, and blood samples. We ascertained why patients came off trials and determined on-site clinical research staffing levels. We used two-sided Wilcoxon rank sum tests to assess the statistical significance of the reported changes. Nearly all patients on interventional treatment trials were maintained, and new enrollments continued at just under half the pre-pandemic rate. The median number of investigational prescriptions shipped to patients increased from 0-74 (range: 22-107) per week from March-June 2020. The median number of telemedicine appointments increased from 0-107 (range: 33-267) per week from March-June 2020. Research biopsies and blood collections decreased dramatically after DFCI implemented COVID-19-related policies in March 2020. The number of research nurses and clinical research coordinators on-site also decreased after March 2020. Substantial changes were required to safely continue clinical research during the pandemic; yet, we observed no increases in serious adverse events or major violations related to drug dosing. Lessons learned from adapting research practices during COVID-19 can inform industry sponsors and governmental agencies to consider altering practices to increase operational efficiency and convenience for patients.
    Keywords Cancer Research ; Oncology ; covid19
    Language English
    Publisher Oxford University Press (OUP)
    Publishing country uk
    Document type Article ; Online
    DOI 10.1093/jnci/djaa144
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Re: Christian Fuglesang S. Jensen, Dana A. Ohl, Mikkel Fode, et al. Microdissection Testicular Sperm Extraction Versus Multiple Needle-pass Percutaneous Testicular Sperm Aspiration in Men with Nonobstructive Azoospermia: A Randomized Clinical Trial. Eur Urol. 2022;82:377-384.

    Li, Bo / Duan, Chen / Yao, Xiangyang / Wu, Xiaoliang / Xu, Hua

    European urology

    2022  Volume 82, Issue 5, Page(s) e149–e150

    MeSH term(s) Azoospermia/therapy ; Humans ; Male ; Microdissection ; Retrospective Studies ; Semen ; Sperm Retrieval ; Spermatozoa ; Testis/surgery
    Language English
    Publishing date 2022-09-08
    Publishing country Switzerland
    Document type Letter ; Randomized Controlled Trial ; Comment
    ZDB-ID 193790-x
    ISSN 1873-7560 ; 1421-993X ; 0302-2838
    ISSN (online) 1873-7560 ; 1421-993X
    ISSN 0302-2838
    DOI 10.1016/j.eururo.2022.07.034
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Gene analysis and structure prediction for the cold-adaption mechanism of trypsin from the krill Euphausia superba (Dana, 1852).

    Zhou, Tingting / Wang, Xichang / Yan, Juan / Li, Yan

    Journal of the science of food and agriculture

    2018  Volume 98, Issue 8, Page(s) 3049–3056

    Abstract: Background: The ability of Antarctic krill, Euphausia superba (Dana, 1852), to thrive in a cold ...

    Abstract Background: The ability of Antarctic krill, Euphausia superba (Dana, 1852), to thrive in a cold environment comes from its capacity to synthesize cold-adapted enzymes. Its trypsin, as a main substance in the metabolic reactions, plays a key role in the adaption to low temperatures. However, the progress of research on its cold-adaption mechanism is being influenced due to the limited information on its gene and spatial structure.
    Results: We studied the gene of E. superba trypsin with transcriptome sequencing first, and then discussed its cold-adaption mechanism with the full gene and predicted structure basing on bioinformatics. The results showed the proportion of certain residues played important roles in the cold-adaptation behavior for trypsin. Furthermore, a higher proportion of random coils and reduced steric hindrance might also be key factors promoting its cold adaption.
    Conclusion: This research aimed to reveal the cold-adaption mechanism of E. superba trypsin and provide support for basic research on molecular modification by site-directed mutagenesis of complementary DNA used to produce new and improved recombinant variants with cold adaption. Furthermore, it may broaden its commercial application on minimizing undesirable changes elevated at higher temperature in food processing and in treatment of trauma and inflammation in medicine. © 2017 Society of Chemical Industry.
    MeSH term(s) Amino Acid Sequence ; Animals ; Arthropod Proteins/chemistry ; Arthropod Proteins/genetics ; Arthropod Proteins/metabolism ; Base Sequence ; Cold Temperature ; Computational Biology ; Enzyme Stability ; Euphausiacea/chemistry ; Euphausiacea/enzymology ; Euphausiacea/genetics ; Euphausiacea/physiology ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Sequence Alignment ; Shellfish/analysis ; Transcriptome ; Trypsin/chemistry ; Trypsin/genetics ; Trypsin/metabolism
    Chemical Substances Arthropod Proteins ; Trypsin (EC 3.4.21.4)
    Language English
    Publishing date 2018-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 184116-6
    ISSN 1097-0010 ; 0022-5142
    ISSN (online) 1097-0010
    ISSN 0022-5142
    DOI 10.1002/jsfa.8804
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Gene analysis and structure prediction for the cold‐adaption mechanism of trypsin from the krill Euphausia superba (Dana, 1852)

    Zhou, Tingting / Xichang Wang / Juan Yan / Yan Li

    Journal of the science of food and agriculture. 2018 June, v. 98, no. 8

    2018  

    Abstract: BACKGROUND: The ability of Antarctic krill, Euphausia superba (Dana, 1852), to thrive in a cold ...

    Abstract BACKGROUND: The ability of Antarctic krill, Euphausia superba (Dana, 1852), to thrive in a cold environment comes from its capacity to synthesize cold‐adapted enzymes. Its trypsin, as a main substance in the metabolic reactions, plays a key role in the adaption to low temperatures. However, the progress of research on its cold‐adaption mechanism is being influenced due to the limited information on its gene and spatial structure. RESULTS: We studied the gene of E. superba trypsin with transcriptome sequencing first, and then discussed its cold‐adaption mechanism with the full gene and predicted structure basing on bioinformatics. The results showed the proportion of certain residues played important roles in the cold‐adaptation behavior for trypsin. Furthermore, a higher proportion of random coils and reduced steric hindrance might also be key factors promoting its cold adaption. CONCLUSION: This research aimed to reveal the cold‐adaption mechanism of E. superba trypsin and provide support for basic research on molecular modification by site‐directed mutagenesis of complementary DNA used to produce new and improved recombinant variants with cold adaption. Furthermore, it may broaden its commercial application on minimizing undesirable changes elevated at higher temperature in food processing and in treatment of trauma and inflammation in medicine. © 2017 Society of Chemical Industry
    Keywords Euphausia superba ; bioinformatics ; cold zones ; complementary DNA ; food processing ; genes ; inflammation ; krill ; medicine ; prediction ; site-directed mutagenesis ; temperature ; transcriptomics ; trypsin
    Language English
    Dates of publication 2018-06
    Size p. 3049-3056.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 184116-6
    ISSN 1097-0010 ; 0022-5142
    ISSN (online) 1097-0010
    ISSN 0022-5142
    DOI 10.1002/jsfa.8804
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Systematic status of the caridean families Gnathophyllidae Dana and Hymenoceridae Ortmann (Crustacea: Decapoda): a further examination based on molecular and morphological data

    Gan, Zhibin / Li, Xinzheng / Kou, Qi / Chan, Tinyam / Chu, Kahou / Huang, Hui

    Chinese journal of oceanology and limnology =. 2015 Jan., v. 33, no. 1

    2015  

    Abstract: The four palaemonoid (sub)families Anchistioididae, Gnathophyllidae, Hymenoceridae, and Pontoniinae are similar in morphology, and all live in marine habitats. Their systematic relationships are controversial. In this study, we used sequences from a ... ...

    Abstract The four palaemonoid (sub)families Anchistioididae, Gnathophyllidae, Hymenoceridae, and Pontoniinae are similar in morphology, and all live in marine habitats. Their systematic relationships are controversial. In this study, we used sequences from a mitochondrial ribosomal gene (16S rRNA) and three nuclear genes (H3, NaK, and enolase) to explore the phylogenetic relationships of these four taxa. Our tree based on 43 species belonging to 28 genera shows that Gnathophyllidae and Hymenoceridae are nested within Pontoniinae. This result is consistent with evidence from larval morphology. The defining characteristics of Gnathophyllidae and Hymenoceridae, a vestigial or missing mandibular incisor process and a broadened third maxilliped, can also be found in Pontoniinae; conversely, on the basis of published species descriptions, gnathophyllids and hymenocerids meet most of the defining characteristics of Pontoniinae. The peculiar form of the third maxilliped in gnathophyllids and hymenocerids might be the result of adaptive evolution, as these particular features are also present in pontoniines. According to our phylogenetic tree, Anchistioididae are more remote from Pontoniinae, which is consistent with the distinct morphological differences in the pleopods. The pontoniine genera analyzed (together with Gnathophyllidae and Hymenoceridae) are divided into two clades. The members of Clade I exhibit primordial characteristics similar to those of the Palaemoninae, and might be direct descendants of the ancestor of the Pontoniinae; members of Clade II are more specialized.
    Keywords Decapoda ; evolutionary adaptation ; genes ; habitats ; larvae ; phosphopyruvate hydratase ; phylogeny ; ribosomal RNA
    Language English
    Dates of publication 2015-01
    Size p. 149-158.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 2262662-1
    ISSN 1993-5005 ; 0254-4059
    ISSN (online) 1993-5005
    ISSN 0254-4059
    DOI 10.1007/s00343-015-4007-z
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Editorial: Large-scale recording of neuronal activity at high spatiotemporal resolutions and applications in neuroscience.

    Li, Bo / Kong, Lingjie / Piatkevich, Kiryl D / Dana, Hod

    Frontiers in neuroscience

    2023  Volume 17, Page(s) 1202207

    Language English
    Publishing date 2023-05-10
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2411902-7
    ISSN 1662-453X ; 1662-4548
    ISSN (online) 1662-453X
    ISSN 1662-4548
    DOI 10.3389/fnins.2023.1202207
    Database MEDical Literature Analysis and Retrieval System OnLINE

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