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  1. Article ; Online: Correction: Bringing Mechanical Context to Image-Based Measurements of Bone Integrity.

    Loundagin, Lindsay L / Bredbenner, Todd L / Jepsen, Karl J / Edwards, W Brent

    Current osteoporosis reports

    2023  

    Language English
    Publishing date 2023-10-14
    Publishing country United States
    Document type Published Erratum
    ZDB-ID 2186581-4
    ISSN 1544-2241 ; 1544-1873
    ISSN (online) 1544-2241
    ISSN 1544-1873
    DOI 10.1007/s11914-023-00829-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Cognition and Amyloid-β in Older Veterans: Characterization and Longitudinal Outcomes of Data-Derived Phenotypes.

    Thomas, Kelsey R / Clark, Alexandra L / Weigand, Alexandra J / Edwards, Lauren / Durazo, Alin Alshaheri / Membreno, Rachel / Luu, Britney / Rantins, Peter / Ly, Monica T / Rotblatt, Lindsay J / Bangen, Katherine J / Jak, Amy J

    Journal of Alzheimer's disease : JAD

    2024  

    Abstract: Background: Within older Veterans, multiple factors may contribute to cognitive difficulties. Beyond Alzheimer's disease (AD), psychiatric (e.g., PTSD) and health comorbidities (e.g., TBI) may also impact cognition.: Objective: This study aimed to ... ...

    Abstract Background: Within older Veterans, multiple factors may contribute to cognitive difficulties. Beyond Alzheimer's disease (AD), psychiatric (e.g., PTSD) and health comorbidities (e.g., TBI) may also impact cognition.
    Objective: This study aimed to derive subgroups based on objective cognition, subjective cognitive decline (SCD), and amyloid burden, and then compare subgroups on clinical characteristics, biomarkers, and longitudinal change in functioning and global cognition.
    Methods: Cluster analysis of neuropsychological measures, SCD, and amyloid PET was conducted on 228 predominately male Vietnam-Era Veterans from the Department of Defense-Alzheimer's Disease Neuroimaging Initiative. Cluster-derived subgroups were compared on baseline characteristics as well as 1-year changes in everyday functioning and global cognition.
    Results: The cluster analysis identified 3 groups. Group 1 (n = 128) had average-to-above average cognition with low amyloid burden. Group 2 (n = 72) had the lowest memory and language, highest SCD, and average amyloid burden; they also had the most severe PTSD, pain, and worst sleep quality. Group 3 (n = 28) had the lowest attention/executive functioning, slightly low memory and language, elevated amyloid and the worst AD biomarkers, and the fastest rate of everyday functioning and cognitive decline.
    Conclusions: Psychiatric and health factors likely contributed to Group 2's low memory and language performance. Group 3 was most consistent with biological AD, yet attention/executive function was the lowest score. The complexity of older Veterans' co-morbid conditions may interact with AD pathology to show attention/executive dysfunction (rather than memory) as a prominent early symptom. These results could have important implications for the implementation of AD-modifying drugs in older Veterans.
    Language English
    Publishing date 2024-05-21
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1440127-7
    ISSN 1875-8908 ; 1387-2877
    ISSN (online) 1875-8908
    ISSN 1387-2877
    DOI 10.3233/JAD-240077
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Bringing Mechanical Context to Image-Based Measurements of Bone Integrity.

    Loundagin, Lindsay L / Bredbenner, Todd L / Jepsen, Karl J / Edwards, W Brent

    Current osteoporosis reports

    2021  Volume 19, Issue 5, Page(s) 542–552

    Abstract: Purpose of review: Image-based measurements of bone integrity are used to estimate failure properties and clinical fracture risk. This paper (1) reviews recent imaging studies that have enhanced our understanding of the mechanical pathways to bone ... ...

    Abstract Purpose of review: Image-based measurements of bone integrity are used to estimate failure properties and clinical fracture risk. This paper (1) reviews recent imaging studies that have enhanced our understanding of the mechanical pathways to bone fracture and (2) discusses the influence that inter-individual differences in image-based measurements may have on the clinical assessment of fracture risk RECENT FINDINGS: Increased tissue mineralization is associated with improved bone strength but reduced fracture toughness. Trabecular architecture that is important for fatigue resistance is less important for bone strength. The influence of porosity on bone failure properties is heavily dependent on pore location and size. The interaction of various characteristics, such as bone area and mineral content, can further complicate their influence on bone failure properties. What is beneficial for bone strength is not always beneficial for bone toughness or fatigue resistance. Additionally, given the large amount of imaging data that is clinically available, there is a need to develop effective translational strategies to better interpret non-invasive measurements of bone integrity.
    MeSH term(s) Absorptiometry, Photon ; Bone Density ; Fractures, Bone/diagnostic imaging ; Fractures, Bone/etiology ; Humans ; Porosity ; Tomography, X-Ray Computed
    Language English
    Publishing date 2021-07-16
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2186581-4
    ISSN 1544-2241 ; 1544-1873
    ISSN (online) 1544-2241
    ISSN 1544-1873
    DOI 10.1007/s11914-021-00700-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Twelve Months of Denosumab and/or Alendronate Is Associated With Improved Bone Fatigue Life, Microarchitecture, and Density in Ovariectomized Cynomolgus Monkeys.

    Haider, Ifaz T / Loundagin, Lindsay L / Sawatsky, Andrew / Kostenuik, Paul J / Boyd, Steven K / Edwards, W Brent

    Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research

    2023  Volume 38, Issue 3, Page(s) 403–413

    Abstract: Prolonged use of antiresorptives such as the bisphosphonate alendronate (ALN) and the RANKL inhibitor denosumab (DMAb) are associated with rare cases of atypical femoral fracture (AFF). The etiology of AFF is unclear, but it has been hypothesized that ... ...

    Abstract Prolonged use of antiresorptives such as the bisphosphonate alendronate (ALN) and the RANKL inhibitor denosumab (DMAb) are associated with rare cases of atypical femoral fracture (AFF). The etiology of AFF is unclear, but it has been hypothesized that potent osteoclast inhibitors may reduce bone fatigue resistance. The purpose of this study was to quantify the relationship between antiresorptive treatment and fatigue life (cycles to failure) in bone from ovariectomized cynomolgus monkeys. We analyzed humeral bone from 30 animals across five treatment groups. Animals were treated for 12 months with subcutaneous (sc) vehicle (VEH), sc DMAb (25 mg/kg/month), or intravenous (iv) ALN (50 μg/kg/month). Another group received 6 months VEH followed by 6 months DMAb (VEH-DMAb), and the final group received 6 months ALN followed by 6 months DMAb (ALN-DMAb). A total of 240 cortical beam samples were cyclically tested in four-point bending at 80, 100, 120, or 140 MPa peak stress. High-resolution imaging and density measurements were performed to evaluate bone microstructure and composition. Samples from the ALN (p = 0.014), ALN-DMAb (p = 0.008), and DMAb (p < 0.001) groups illustrated higher fatigue-life measurements than VEH. For example, at 140 MPa the VEH group demonstrated a median ± interquartile range (IQR) fatigue life of 1987 ± 10593 cycles, while animals in the ALN, ALN-DMAb, and DMAb groups survived 9850 ± 13648 (+395% versus VEH), 10493 ± 16796 (+428%), and 14495 ± 49299 (+629%) cycles, respectively. All antiresorptive treatment groups demonstrated lower porosity, smaller pore size, greater pore spacing, and lower number of canals versus VEH (p < 0.001). Antiresorptive treatment was also associated with greater apparent density, dry density, and ash density (p ≤ 0.03). We did not detect detrimental changes following antiresorptive treatments that would explain their association with AFF. In contrast, 12 months of treatment may have a protective effect against fatigue fractures. © 2022 American Society for Bone and Mineral Research (ASBMR).
    MeSH term(s) Animals ; Alendronate/pharmacology ; Denosumab/pharmacology ; Macaca fascicularis ; Bone Density ; Bone and Bones ; Bone Diseases ; Bone Density Conservation Agents/pharmacology
    Chemical Substances Alendronate (X1J18R4W8P) ; Denosumab (4EQZ6YO2HI) ; Bone Density Conservation Agents
    Language English
    Publishing date 2023-01-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 632783-7
    ISSN 1523-4681 ; 0884-0431
    ISSN (online) 1523-4681
    ISSN 0884-0431
    DOI 10.1002/jbmr.4758
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Single-cell mapping of regenerative and fibrotic healing responses after musculoskeletal injury.

    Tower, Robert J / Bancroft, Alec C / Chowdary, Ashish R / Barnes, Spencer / Edwards, Nicole J / Pagani, Chase A / Dawson, Lindsay A / Levi, Benjamin

    Stem cell reports

    2022  Volume 17, Issue 10, Page(s) 2334–2348

    Abstract: After injury, a cascade of events repairs the damaged tissue, including expansion and differentiation of the progenitor pool and redeposition of matrix. To guide future wound regeneration strategies, we compared single-cell sequencing of regenerative ( ... ...

    Abstract After injury, a cascade of events repairs the damaged tissue, including expansion and differentiation of the progenitor pool and redeposition of matrix. To guide future wound regeneration strategies, we compared single-cell sequencing of regenerative (third phalangeal element [P3]) and fibrotic (second phalangeal element [P2]) digit tip amputation (DTA) models as well as traumatic heterotopic ossification (HO; aberrant). Analyses point to a common initial response to injury, including expansion of progenitors, redeposition of matrix, and activation of transforming growth factor β (TGF-β) and WNT pathways. Surprisingly, fibrotic P2 DTA showed greater transcriptional similarity to HO than to regenerative P3 DTA, suggesting that gene expression more strongly correlates with healing outcome than with injury type or cell origin. Differential analysis and immunostaining revealed altered activation of inflammatory pathways, such as the complement pathway, in the progenitor cells. These data suggests that common pathways are activated in response to damage but are fine tuned within each injury. Modulating these pathways may shift the balance toward regenerative outcomes.
    MeSH term(s) Amputation, Surgical ; Bone and Bones/injuries ; Cell Differentiation ; Humans ; Musculoskeletal System/injuries ; Ossification, Heterotopic ; Regeneration ; Transforming Growth Factor beta
    Chemical Substances Transforming Growth Factor beta
    Language English
    Publishing date 2022-09-22
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, N.I.H., Extramural
    ZDB-ID 2720528-9
    ISSN 2213-6711 ; 2213-6711
    ISSN (online) 2213-6711
    ISSN 2213-6711
    DOI 10.1016/j.stemcr.2022.08.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Regional White Matter Hyperintensities Relate to Specific Cognitive Abilities in Older Adults Without Dementia.

    Membreno, Rachel / Thomas, Kelsey R / Calcetas, Amanda T / Edwards, Lauren / Bordyug, Maria / Showell, Maya / Stanfill, Morgan / Brenner, Einat K / Walker, Kayla S / Rotblatt, Lindsay J / Brickman, Adam M / Edmonds, Emily C / Bangen, Katherine J

    Alzheimer disease and associated disorders

    2023  Volume 37, Issue 4, Page(s) 303–309

    Abstract: Introduction: White matter hyperintensities (WMHs) are magnetic resonance imaging markers of small vessel cerebrovascular disease that are associated with cognitive decline and clinical Alzheimer disease. Previous studies have often focused on global or ...

    Abstract Introduction: White matter hyperintensities (WMHs) are magnetic resonance imaging markers of small vessel cerebrovascular disease that are associated with cognitive decline and clinical Alzheimer disease. Previous studies have often focused on global or total WMH; less is known about associations of regional WMHs and cognitive abilities among older adults without dementia.
    Methods: A total of 610 older adults with normal cognition (n=302) or mild cognitive impairment (n=308) from the Alzheimer's Disease Neuroimaging Initiative underwent neuropsychological testing and magnetic resonance imaging. Linear regression models examined associations between regional WMH volumes and cognition, adjusting for age, sex, education, apolipoprotein E ε4 allele frequency, and pulse pressure.
    Results: Among all participants, greater regional WMH volume in all lobes was associated with poorer performance on memory and speed/executive functioning. Among participants with normal cognition, greater temporal and occipital WMH volumes were associated with poorer memory, whereas no regional WMH volumes were associated with speed/executive function.
    Discussion: Results show that greater regional WMH volume relates to poorer cognitive functioning-even among those with normal cognition. Together with results from previous studies, our findings raise the possibility that WMH may be a useful therapeutic target and/or important effect modifier in treatment or prevention dementia trials.
    MeSH term(s) Humans ; Aged ; White Matter ; Cognition ; Cognitive Dysfunction ; Executive Function ; Alzheimer Disease
    Language English
    Publishing date 2023-11-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1002700-2
    ISSN 1546-4156 ; 0893-0341
    ISSN (online) 1546-4156
    ISSN 0893-0341
    DOI 10.1097/WAD.0000000000000585
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Population Genomics of Legionella longbeachae and Hidden Complexities of Infection Source Attribution.

    Bacigalupe, Rodrigo / Lindsay, Diane / Edwards, Giles / Fitzgerald, J Ross

    Emerging infectious diseases

    2017  Volume 23, Issue 5, Page(s) 750–757

    Abstract: Legionella longbeachae is the primary cause of legionellosis in Australasia and Southeast Asia and an emerging pathogen in Europe and the United States; however, our understanding of the population diversity of L. longbeachae from patient and ... ...

    Abstract Legionella longbeachae is the primary cause of legionellosis in Australasia and Southeast Asia and an emerging pathogen in Europe and the United States; however, our understanding of the population diversity of L. longbeachae from patient and environmental sources is limited. We analyzed the genomes of 64 L. longbeachae isolates, of which 29 were from a cluster of legionellosis cases linked to commercial growing media in Scotland in 2013 and 35 were non-outbreak-associated isolates from Scotland and other countries. We identified extensive genetic diversity across the L. longbeachae species, associated with intraspecies and interspecies gene flow, and a wide geographic distribution of closely related genotypes. Of note, we observed a highly diverse pool of L. longbeachae genotypes within compost samples that precluded the genetic establishment of an infection source. These data represent a view of the genomic diversity of L. longbeachae that will inform strategies for investigating future outbreaks.
    MeSH term(s) Australia/epidemiology ; Cluster Analysis ; Computational Biology/methods ; Gene Flow ; Genetic Variation ; Genome, Bacterial ; Genomics/methods ; High-Throughput Nucleotide Sequencing ; Humans ; Legionella longbeachae/classification ; Legionella longbeachae/genetics ; Legionellosis/epidemiology ; Legionellosis/microbiology ; New Zealand/epidemiology ; Phylogeny ; Plasmids/genetics ; RNA, Bacterial ; RNA, Ribosomal, 16S ; Recombination, Genetic ; Scotland/epidemiology ; Serogroup ; United States/epidemiology
    Chemical Substances RNA, Bacterial ; RNA, Ribosomal, 16S
    Language English
    Publishing date 2017-04-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1380686-5
    ISSN 1080-6059 ; 1080-6040
    ISSN (online) 1080-6059
    ISSN 1080-6040
    DOI 10.3201/eid2305.161165
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A Resident-Driven Quality Initiative for Reducing Opioid Prescribing in Patients Undergoing Elective General Surgery Procedures, With Long-Term Follow-Up

    Ryan Lamm / Megan Lundgren / Adrienne Christopher / Jacob Woodroof / Lindsay Edwards / Christopher Kustera / Charles J. Yeo / Kristin M. Noonan / Harish Lavu / Caitlyn Costanzo / Scott Cowan

    Patient Safety, Vol 5, Iss

    2023  Volume 3

    Abstract: Background The opioid epidemic has been declared a public health emergency in the United States—and major news outlets have labeled operating rooms as “unintended gateways.” In response to this emergency, our academic institution sought to decrease our ...

    Abstract # Background The opioid epidemic has been declared a public health emergency in the United States—and major news outlets have labeled operating rooms as “unintended gateways.” In response to this emergency, our academic institution sought to decrease our contribution to the potential diversion pool—the opioids surgeons prescribe to patients which go unused. # Methods Patients undergoing common surgical procedures between August 2017 and March 2018 were identified. Patients were contacted by phone and consented, and opioid use data was collected. The potential diversion pool was calculated as pills prescribed minus pills consumed for each patient and procedure, and subgroup analysis was performed to correlate the number of opioid pills taken within 24 hours before hospital discharge to the number taken after discharge. # Results Surveys were completed for 357 patients. Overall, 6,831 of the 12,061 tablets prescribed were unused (57%). Patients who took 7 or more doses of oral opioids in the last 24 hours before discharge had significantly fewer (30%) pills remaining compared to patients who took 0–6 doses (68% remaining). Ninety-nine of 111 patients (89%) who took 0 tablets 24 hours prior to discharge left with an opioid prescription, creating a diversion pool of 2,419 pills remaining out of 3,353 prescribed (72%). Based on a 95% confidence interval of procedural opioid consumption, prescribing guidelines were created within a toolkit designed to set preoperative expectations, promote use of nonopioid analgesics, and provide opioid disposal information. We have continued to track our data, with low opioid prescribing patterns. # Conclusion Surgical departments can develop opioid reduction toolkits aimed at reducing the potential diversion pool of opioids in our communities. Such toolkits have a sustained positive impact.
    Keywords Medicine ; R
    Subject code 616
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher Patient Safety Authority
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Declining muscle NAD

    Aflatounian, Ali / Paris, Valentina Rodriguez / Richani, Dulama / Edwards, Melissa C / Cochran, Blake J / Ledger, William L / Gilchrist, Robert B / Bertoldo, Michael J / Wu, Lindsay E / Walters, Kirsty A

    Molecular metabolism

    2022  Volume 65, Page(s) 101583

    Abstract: Polycystic ovary syndrome (PCOS) is a common endocrine disorder, defined by reproductive and endocrine abnormalities, with metabolic dysregulation including obesity, insulin resistance and hepatic steatosis. Recently, it was found that skeletal muscle ... ...

    Abstract Polycystic ovary syndrome (PCOS) is a common endocrine disorder, defined by reproductive and endocrine abnormalities, with metabolic dysregulation including obesity, insulin resistance and hepatic steatosis. Recently, it was found that skeletal muscle insulin sensitivity could be improved in obese, post-menopausal, pre-diabetic women through treatment with nicotinamide mononucleotide (NMN), a precursor to the prominent redox cofactor nicotinamide adenine dinucleotide (NAD
    MeSH term(s) Animals ; Dihydrotestosterone/metabolism ; Female ; Humans ; Hyperandrogenism/metabolism ; Insulin Resistance/physiology ; Lipids ; Metabolic Syndrome/metabolism ; Mice ; Muscle, Skeletal/metabolism ; NAD/metabolism ; Nicotinamide Mononucleotide/metabolism ; Obesity/metabolism ; Polycystic Ovary Syndrome/metabolism
    Chemical Substances Lipids ; Dihydrotestosterone (08J2K08A3Y) ; NAD (0U46U6E8UK) ; Nicotinamide Mononucleotide (1094-61-7)
    Language English
    Publishing date 2022-09-09
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2708735-9
    ISSN 2212-8778 ; 2212-8778
    ISSN (online) 2212-8778
    ISSN 2212-8778
    DOI 10.1016/j.molmet.2022.101583
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Validation of International Classification of Diseases criteria to identify severe influenza hospitalizations.

    Snyder, Brittney M / Patterson, Megan F / Gebretsadik, Tebeb / Wu, Pingsheng / Ding, Tan / Lee, Rees L / Edwards, Kathryn M / Somerville, Lindsay A / Braciale, Thomas J / Ortiz, Justin R / Hartert, Tina V

    Influenza and other respiratory viruses

    2022  Volume 16, Issue 3, Page(s) 371–375

    Abstract: In this cohort study of hospitalized patients with linked medical record data, we developed International Classification of Diseases (ICD) criteria that accurately identified laboratory-confirmed, severe influenza hospitalizations (positive predictive ... ...

    Abstract In this cohort study of hospitalized patients with linked medical record data, we developed International Classification of Diseases (ICD) criteria that accurately identified laboratory-confirmed, severe influenza hospitalizations (positive predictive value [PPV] 80%, 95% confidence interval [CI] 71-87%), which we validated through medical record documentation. These criteria identify patients with clinically important influenza illness outcomes to inform evaluation of preventive and therapeutic interventions and public health policy recommendations.
    MeSH term(s) Cohort Studies ; Hospitalization ; Humans ; Influenza, Human/diagnosis ; Influenza, Human/epidemiology ; Influenza, Human/therapy ; International Classification of Diseases ; Predictive Value of Tests
    Language English
    Publishing date 2022-01-04
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2274538-5
    ISSN 1750-2659 ; 1750-2640
    ISSN (online) 1750-2659
    ISSN 1750-2640
    DOI 10.1111/irv.12931
    Database MEDical Literature Analysis and Retrieval System OnLINE

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