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  1. Book ; Online: Chronostratigraphy of sediment core CRP-2/2A (Table 1), supplementary data to: Wilson, Gary S; Bohaty, Steven M; Fielding, Christopher R; Florindo, Fabio; Hannah, Mike J; Harwood, David M; McIntosh, WC; Naish, Tim R; Roberts, Andrew P; Sagnotti, Leo; Scherer, Reed P; Strong, C Percy; Versub, KL; Villa, Giuliana; Watkins, David K; Webb, Peter-Noel; Woolfe, Ken (2000): Chronostratigraphy of CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 647-654

    Wilson, Gary S / Bohaty, Steven M / Fielding, Christopher R / Florindo, Fabio / Hannah, Mike J / Harwood, David M / McIntosh, WC / Naish, Tim R / Roberts, Andrew P / al., et

    2000  

    Abstract: ... lower Oligocene (<c. 31 Ma) to lower Miocene (18.5 Ma) strata that are overlain by a thin succession ... Additional unconformities at 25.92 and 130.27 mbsf account for c. 16 and 2.5 m.y. of missing time ...

    Abstract The 624.15 m glaciomarine sedimentary succession recovered in the CRP-2/2A drillcore comprises lower Oligocene (<c. 31 Ma) to lower Miocene (18.5 Ma) strata that are overlain by a thin succession of Pliocene and Pleistocene strata. The age model for the CRP-2/2A drillhole, as presented in this paper, is based on combined microfossil biostratigraphy. 40Ar/39Ar age on volcanic material, 87Sr/86Sr analyses on mollusc shells, and correlation of a magnetic polarity zonation to the magnetic polarity time scale (MPTS). Between 25.92 and 109.05 metres below sea floor (mbsf), several alternative correlations to the MPTS are possible, all of which suggest that sediment accumulation rates averaged ~180 m/m.y. between unconformities, although actual sedimentation rates may have been higher. Between 109.05 and 306.65 mbsf, the age model is straightforward and average sedimentation rates were much higher (>1000 m/m.y.). Between 306.65 mbsf and the bottom of the drillcore (624.15 mbsf), fewer datums are available to constrain the age model and unique correlation with the MPTS is not possible, although high average sediment accumulation rates are likely. A significant unconformity is identified at 306.65 mbsf, which may represent as much as 5 m.y. of missing time. Additional unconformities at 25.92 and 130.27 mbsf account for c. 16 and 2.5 m.y. of missing time, respectively. The Oligocene-lower Miocene interval documented in the CRP-2/2A drillcore spans about 13 million years, however, it is possible that more time is missing in sequence-bounding unconformities than is represented in the stratigraphic record recovered in the CRP-2/2A drillcore.
    Language English
    Dates of publication 2000-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to hdl:10013/epic.28244.d001
    DOI 10.1594/PANGAEA.189249
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  2. Article: Automated Growth Rate Measurement of the Facet Surfaces of Single Crystals of the β-Form of l-Glutamic Acid Using Machine Learning Image Processing.

    Jiang, Chen / Ma, Cai Y / Hazlehurst, Thomas A / Ilett, Thomas P / Jackson, Alexander S M / Hogg, David C / Roberts, Kevin J

    Crystal growth & design

    2024  Volume 24, Issue 8, Page(s) 3277–3288

    Abstract: Precision measurement of the growth rate of individual single crystal facets ( ...

    Abstract Precision measurement of the growth rate of individual single crystal facets (
    Language English
    Publishing date 2024-04-05
    Publishing country United States
    Document type Journal Article
    ISSN 1528-7483
    ISSN 1528-7483
    DOI 10.1021/acs.cgd.3c01548
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: A Genome-Wide CRISPR Screen Identifies Sortilin as the Receptor Responsible for Galectin-1 Lysosomal Trafficking.

    Donnelly, Justin / Kamber, Roarke A / Wisnovsky, Simon / Roberts, David S / Peltan, Egan L / Bassik, Michael C / Bertozzi, Carolyn R

    bioRxiv : the preprint server for biology

    2024  

    Abstract: Galectins are a family of mammalian glycan-binding proteins that have been implicated as regulators of myriad cellular processes including cell migration, apoptosis, and immune modulation. Several members of this family, such as galectin-1, exhibit both ... ...

    Abstract Galectins are a family of mammalian glycan-binding proteins that have been implicated as regulators of myriad cellular processes including cell migration, apoptosis, and immune modulation. Several members of this family, such as galectin-1, exhibit both cell-surface and intracellular functions. Interestingly, galectin-1 can be found in the endomembrane system, nucleus, or cytosol, as well as on the cell surface. The mechanisms by which galectin-1 traffics between cellular compartments, including its unconventional secretion and internalization processes, are poorly understood. Here, we determined the pathways by which exogenous galectin-1 enters cells and explored its capacity as a delivery vehicle for protein and siRNA therapeutics. We used a galectin-1-toxin conjugate, modelled on antibody-drug conjugates, as a selection tool in a genome-wide CRISPR screen. We discovered that galectin-1 interacts with the endosome-lysosome trafficking receptor sortilin in a glycan-dependent manner, which regulates galectin-1 trafficking to the lysosome. Further, we show that this pathway can be exploited for delivery of a functional siRNA. This study sheds light on the mechanisms by which galectin-1 is internalized by cells and suggests a new strategy for intracellular drug delivery via galectin-1 conjugation.
    Language English
    Publishing date 2024-01-03
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.01.03.574113
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Interventions for Optimization of Guideline-Directed Medical Therapy: A Systematic Review.

    Tang, Amber B / Brownell, Nicholas K / Roberts, Jacob S / Haidar, Amier / Osuna-Garcia, Antonia / Cho, David J / Bokhoor, Pooya / Fonarow, Gregg C

    JAMA cardiology

    2024  Volume 9, Issue 4, Page(s) 397–404

    Abstract: Importance: Implementation of guideline-directed medical therapy (GDMT) in real-world practice remains suboptimal. It is unclear which interventions are most effective at addressing current barriers to GDMT in patients with heart failure with reduced ... ...

    Abstract Importance: Implementation of guideline-directed medical therapy (GDMT) in real-world practice remains suboptimal. It is unclear which interventions are most effective at addressing current barriers to GDMT in patients with heart failure with reduced ejection fraction (HFrEF).
    Objective: To perform a systematic review to identify which types of system-level initiatives are most effective at improving GDMT use among patients with HFrEF.
    Evidence review: PubMed, Embase, Cochrane, CINAHL, and Web of Science databases were queried from January 2010 to November 2023 for randomized clinical trials that implemented a quality improvement intervention with GDMT use as a primary or secondary outcome. References from related review articles were also included for screening. Quality of studies and bias assessment were graded based on the Cochrane Risk of Bias tool and Oxford Centre for Evidence-Based Medicine.
    Findings: Twenty-eight randomized clinical trials were included with an aggregate sample size of 19 840 patients. Studies were broadly categorized as interdisciplinary interventions (n = 15), clinician education (n = 5), electronic health record initiatives (n = 6), or patient education (n = 2). Overall, interdisciplinary titration clinics were associated with significant increases in the proportion of patients on target doses of GDMT with a 10% to 60% and 2% to 53% greater proportion of patients on target doses of β-blockers and renin-angiotensin-aldosterone system inhibitors, respectively, in intervention groups compared with usual care. Other interventions, such as audits, clinician and patient education, or electronic health record alerts, were also associated with some improvements in GDMT utilization, though these findings were inconsistent across studies.
    Conclusions and relevance: This review summarizes interventions aimed at optimization of GDMT in clinical practice. Initiatives that used interdisciplinary teams, largely comprised of nurses and pharmacists, most consistently led to improvements in GDMT. Additional large, randomized studies are necessary to better understand other types of interventions, as well as their long-term efficacy and sustainability.
    MeSH term(s) Humans ; Heart Failure/drug therapy ; Heart Failure/diagnosis ; Stroke Volume ; Adrenergic beta-Antagonists/therapeutic use ; Ventricular Dysfunction, Left/drug therapy ; Quality Improvement
    Chemical Substances Adrenergic beta-Antagonists
    Language English
    Publishing date 2024-02-21
    Publishing country United States
    Document type Systematic Review ; Journal Article
    ISSN 2380-6591
    ISSN (online) 2380-6591
    DOI 10.1001/jamacardio.2023.5627
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: BCL2 and MCL1 inhibitors for hematologic malignancies.

    Roberts, Andrew W / Wei, Andrew H / Huang, David C S

    Blood

    2021  Volume 138, Issue 13, Page(s) 1120–1136

    Abstract: BCL2 and MCL1 are commonly expressed prosurvival (antiapoptotic) proteins in hematologic cancers and play important roles in their biology either through dysregulation or by virtue of intrinsic importance to the cell-of-origin of the malignancy. A new ... ...

    Abstract BCL2 and MCL1 are commonly expressed prosurvival (antiapoptotic) proteins in hematologic cancers and play important roles in their biology either through dysregulation or by virtue of intrinsic importance to the cell-of-origin of the malignancy. A new class of small-molecule anticancer drugs, BH3 mimetics, now enable specific targeting of these proteins in patients. BH3 mimetics act by inhibiting the prosurvival BCL2 proteins to enable the activation of BAX and BAK, apoptosis effectors that permeabilize the outer mitochondrial membrane, triggering apoptosis directly in many cells and sensitizing others to cell death when combined with other antineoplastic drugs. Venetoclax, a specific inhibitor of BCL2, is the first approved in class, demonstrating striking single agent activity in chronic lymphocytic leukemia and in other lymphoid neoplasms, as well as activity against acute myeloid leukemia (AML), especially when used in combination. Key insights from the venetoclax experience include that responses occur rapidly, with major activity as monotherapy proving to be the best indicator for success in combination regimens. This emphasizes the importance of adequate single-agent studies for drugs in this class. Furthermore, secondary resistance is common with long-term exposure and often mediated by genetic or adaptive changes in the apoptotic pathway, suggesting that BH3 mimetics are better suited to limited duration, rather than continuous, therapy. The success of venetoclax has inspired development of BH3 mimetics targeting MCL1. Despite promising preclinical activity against MYC-driven lymphomas, myeloma, and AML, their success may particularly depend on their tolerability profile given physiological roles for MCL1 in several nonhematologic tissues.
    MeSH term(s) Animals ; Antineoplastic Agents/pharmacology ; Antineoplastic Agents/therapeutic use ; Apoptosis/drug effects ; Drug Discovery ; Hematologic Neoplasms/drug therapy ; Hematologic Neoplasms/metabolism ; Humans ; Molecular Targeted Therapy ; Myeloid Cell Leukemia Sequence 1 Protein/antagonists & inhibitors ; Myeloid Cell Leukemia Sequence 1 Protein/metabolism ; Proto-Oncogene Proteins c-bcl-2/antagonists & inhibitors ; Proto-Oncogene Proteins c-bcl-2/metabolism
    Chemical Substances Antineoplastic Agents ; MCL1 protein, human ; Myeloid Cell Leukemia Sequence 1 Protein ; Proto-Oncogene Proteins c-bcl-2
    Language English
    Publishing date 2021-07-28
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 80069-7
    ISSN 1528-0020 ; 0006-4971
    ISSN (online) 1528-0020
    ISSN 0006-4971
    DOI 10.1182/blood.2020006785
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A phase I, randomized, double-blind, placebo-controlled, ascending single- and multiple-dose study of the pharmacokinetics, safety, and tolerability of oral ceftibuten in healthy adult subjects.

    Hernández-Mitre, María Patricia / Wallis, Steven C / Morgan, Elizabeth E / Dudley, Michael N / Loutit, Jeffery S / Griffith, David C / Roberts, Jason A

    Antimicrobial agents and chemotherapy

    2023  Volume 68, Issue 1, Page(s) e0109923

    Abstract: This was a phase I, randomized, double-blind, placebo-controlled, ascending single- and multiple-dose study of oral ceftibuten to describe the pharmacokinetics (PK) ... ...

    Abstract This was a phase I, randomized, double-blind, placebo-controlled, ascending single- and multiple-dose study of oral ceftibuten to describe the pharmacokinetics (PK) of
    MeSH term(s) Adult ; Humans ; Ceftibuten ; Area Under Curve ; Double-Blind Method ; Healthy Volunteers ; Administration, Oral ; Dose-Response Relationship, Drug
    Chemical Substances Ceftibuten (IW71N46B4Y)
    Language English
    Publishing date 2023-12-07
    Publishing country United States
    Document type Randomized Controlled Trial ; Clinical Trial, Phase I ; Journal Article
    ZDB-ID 217602-6
    ISSN 1098-6596 ; 0066-4804
    ISSN (online) 1098-6596
    ISSN 0066-4804
    DOI 10.1128/aac.01099-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: The Majority of SARS-CoV-2 Plasma Cells are Excluded from the Bone Marrow Long-Lived Compartment 33 Months after mRNA Vaccination.

    Nguyen, Doan C / Hentenaar, Ian T / Morrison-Porter, Andrea / Solano, David / Haddad, Natalie S / Castrillon, Carlos / Lamothe, Pedro A / Andrews, Joel / Roberts, Danielle / Lonial, Sagar / Sanz, Ignacio / Lee, F Eun-Hyung

    medRxiv : the preprint server for health sciences

    2024  

    Abstract: The goal of any vaccine is to induce long-lived plasma cells (LLPC) to provide life-long protection. Natural infection by influenza, measles, or mumps viruses generates bone marrow (BM) LLPC similar to tetanus vaccination which affords safeguards for ... ...

    Abstract The goal of any vaccine is to induce long-lived plasma cells (LLPC) to provide life-long protection. Natural infection by influenza, measles, or mumps viruses generates bone marrow (BM) LLPC similar to tetanus vaccination which affords safeguards for decades. Although the SARS-CoV-2 mRNA vaccines protect from severe disease, the serologic half-life is short-lived even though SARS-CoV-2-specific plasma cells can be found in the BM. To better understand this paradox, we enrolled 19 healthy adults at 1.5-33 months after SARS-CoV-2 mRNA vaccine and measured influenza-, tetanus-, or SARS-CoV-2-specific antibody secreting cells (ASC) in LLPC (CD19
    Language English
    Publishing date 2024-03-05
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.03.02.24303242
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A Reduction in Opioid Prescription Size After Total Joint Arthroplasty Can be Safely Performed Without an Increase in Complications.

    Wenzlick, Thomas S / Kutzner, Andrew R / Markel, David C / Hughes, Richard E / Chubb, Heather D / Roberts, Karl C

    The Journal of arthroplasty

    2023  Volume 38, Issue 7, Page(s) 1245–1250

    Abstract: Background: Excessive opioid prescriptions after total joint arthroplasty (TJA) increase risks for adverse opioid-related events, chronic opioid use, and unlawful opioid diversion. Decreasing postoperative prescriptions may improve quality after TJA. ... ...

    Abstract Background: Excessive opioid prescriptions after total joint arthroplasty (TJA) increase risks for adverse opioid-related events, chronic opioid use, and unlawful opioid diversion. Decreasing postoperative prescriptions may improve quality after TJA. Concerns exist that a decrease in opioids prescribed may increase complications, such as readmissions, emergency department (ED) visits, or worsened patient-reported outcomes (PROs). The purpose of this study was to explore whether a reduction in opioids prescribed after TJA resulted in increased complications.
    Methods: Data originated from a statewide database prospectively abstracted, including oral morphine equivalents prescribed at discharge, readmissions, ED visits, and PROs. Data were collected from 84,998 TJA occurring 1 year before and after the creation of an opioid-prescribing protocol that had decreased prescriptions by approximately 50%. Trends were monitored using Shewhart control charts. Regression models were used to determine statistically significant changes over time.
    Results: All groups showed a reduction in opioids prescribed by almost 50% without an increase in emergency room visits or readmissions and without a detrimental effect on PROs. Compared to baseline data before opioid reduction, opioid-naive total knee arthroplasty had significant improvements in all outcomes (P = .03, P = .02, P < .001, P < .001). Opioid-tolerant total knee arthroplasty and total hip arthroplasty had no worsened outcomes and significant improvement in (Knee Injury and Osteoarthritis Outcome score for Joint Replacement P = .03) and (Hip Disability and Osteoarthritis Outcome Score for Joint Replacement P = .03). Opioid-naive total hip arthroplasty had significant improvements in Hip Disability and Osteoarthritis Outcome Score Joint Replacement (P = .003) and Patient Reported Outcomes Measurement Information System (P = .001).
    Conclusions: Postoperative opioid prescription recommendations from a statewide registry decreased prescribing by approximately 50% without decreasing PROs or increasing ED visits or readmissions. A reduction in opioids prescribed after TJA can be accomplished safely and without increased complications.
    MeSH term(s) Humans ; Analgesics, Opioid/therapeutic use ; Pain, Postoperative/drug therapy ; Pain, Postoperative/prevention & control ; Arthroplasty, Replacement, Knee/adverse effects ; Arthroplasty, Replacement, Hip/adverse effects ; Osteoarthritis/complications ; Prescriptions ; Retrospective Studies
    Chemical Substances Analgesics, Opioid
    Language English
    Publishing date 2023-02-23
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 632770-9
    ISSN 1532-8406 ; 0883-5403
    ISSN (online) 1532-8406
    ISSN 0883-5403
    DOI 10.1016/j.arth.2023.01.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Staging Computed Tomography Parameters Predict the Need for Vein Resection during Pancreaticoduodenectomy in Resectable Pancreatic Ductal Adenocarcinoma.

    Pande, Rupaly / Liu, Wingyan / Raza, Syed S / Papamichail, Michail / Suthananthan, Arul E / Bartlett, David C / Marudanayagam, Ravi / Dasari, Bobby V M / Sutcliffe, Robert P / Roberts, Keith J / Wadhwani, Sharan / Chatzizacharias, Nikolaos

    Diagnostics (Basel, Switzerland)

    2024  Volume 14, Issue 2

    Abstract: Background: Surgery-first approach is the current standard of care for resectable pancreatic ductal adenocarcinoma (PDAC), and a proportion of these cases will require venous resection. This study aimed to identify parameters on staging computed ... ...

    Abstract Background: Surgery-first approach is the current standard of care for resectable pancreatic ductal adenocarcinoma (PDAC), and a proportion of these cases will require venous resection. This study aimed to identify parameters on staging computed tomography (CT) that predict the need for venous resection during pancreaticoduodenectomy (PD) for resectable PDAC.
    Methods: We conducted a retrospective analysis of prospectively collected data on patients who underwent PD for resectable staged PDAC (as per NCCN criteria) between 2011 and 2020. Staging CTs were independently reviewed by two specialist radiologists blinded to the clinical outcomes. Univariate and multivariate risk analyses were performed.
    Results: In total, 296 PDs were included. Venous resection was performed in 62 (21%) cases. There was a higher rate of resection margin positivity in the vein resection group (72.6% vs. 48.7%,
    Discussion: Staging CT parameters can predict the need for venous resection during PD for resectable cases of PDAC. This may assist in surgical planning, patient selection and counselling. Future efforts should concentrate on validating these results or identifying additional predictors in a multicentre and prospective setting.
    Language English
    Publishing date 2024-01-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662336-5
    ISSN 2075-4418
    ISSN 2075-4418
    DOI 10.3390/diagnostics14020135
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Hold-down as an alternative to unit dose in cocaine self-administration experiments: Characterization using a progressive ratio schedule.

    Roberts, David C S / Zimmer, Benjamin A

    Psychopharmacology

    2020  Volume 237, Issue 9, Page(s) 2685–2693

    Abstract: Rationale: Virtually all cocaine self-administration studies have used a "unit dose" as a reinforcing stimulus; the subject is a passive recipient of an experimenter-selected dose.: Objectives: The present experiments examined the consequence of ... ...

    Abstract Rationale: Virtually all cocaine self-administration studies have used a "unit dose" as a reinforcing stimulus; the subject is a passive recipient of an experimenter-selected dose.
    Objectives: The present experiments examined the consequence of requiring the subject to actively determine the dose and speed of each injection.
    Methods: A two-lever procedure was used in which responding on a progressive ratio (PR) schedule provided access to cocaine on a hold down (HD) schedule. With HD, the pump is turned on for the duration that the lever is held down, thus the dose and speed of injection is determined by the behavior of the subject. The procedure allows for the evaluation of both drug taking and drug seeking responses.
    Results: The results were qualitatively different from PR self-administration studies using unit dose. The self-administered HD dose varied across the session; the self-administered dose was found to inversely correlate with drug levels at the time of access. Importantly, the 2 L-PR-HD procedure identified a subpopulation of subjects that showed extremes in both drug seeking and drug taking. Subjects at the top end of the distribution displayed unprecedented final ratios (> 900) and rapidly self-administered very large doses (> 1.4 mg; ~ 4.2 mg/kg). Manipulation of drug-taking variables (HD access duration and concentration of drug in the pump) showed that the immediacy of a cocaine bolus, not the duration of access, is the major determinant of drug seeking.
    Conclusions: Incorporating a consummatory response into a PR procedure provides a unique perspective on the interactions of drug-seeking and drug-taking.
    MeSH term(s) Animals ; Cocaine/administration & dosage ; Cocaine-Related Disorders/psychology ; Dopamine Uptake Inhibitors/administration & dosage ; Dose-Response Relationship, Drug ; Drug-Seeking Behavior/drug effects ; Drug-Seeking Behavior/physiology ; Male ; Rats ; Rats, Sprague-Dawley ; Reinforcement Schedule ; Reinforcement, Psychology ; Self Administration/methods ; Self Administration/psychology
    Chemical Substances Dopamine Uptake Inhibitors ; Cocaine (I5Y540LHVR)
    Language English
    Publishing date 2020-05-28
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 130601-7
    ISSN 1432-2072 ; 0033-3158
    ISSN (online) 1432-2072
    ISSN 0033-3158
    DOI 10.1007/s00213-020-05565-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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