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  1. Article ; Online: Rediscovering AMD with Swept-Source OCT Imaging: The 2022 Charles L. Schepens, MD, Lecture.

    Rosenfeld, Philip J / Shen, Mengxi / Trivizki, Omer / Liu, Jeremy / Herrera, Gissel / Hiya, Farhan E / Li, Jianqing / Berni, Alessandro / Wang, Liang / El-Mulki, Omar S / Cheng, Yuxuan / Lu, Jie / Zhang, Qinqin / O'Brien, Robert C / Gregori, Giovanni / Wang, Ruikang K

    Ophthalmology. Retina

    2024  

    Abstract: ... sectional and en face imaging strategies.: Design: Presented at the 2022 Charles L. Schepens, MD, Lecture ...

    Abstract Purpose: Swept-source optical coherence tomography angiography (SS-OCTA) scans of eyes with age-related macular degeneration (AMD) were used to replace color, autofluorescence, infrared reflectance, and dye-based fundus angiographic imaging for the diagnosis and staging of AMD. Through the use of different algorithms with the SS-OCTA scans, both structural and angiographic information can be viewed and assessed using both cross-sectional and en face imaging strategies.
    Design: Presented at the 2022 Charles L. Schepens, MD, Lecture at the American Academy of Ophthalmology Retina Subspecialty Day, Chicago, Illinois, on September 30, 2022 PARTICIPANTS: Patients with AMD METHODS: Review of published literature and ongoing clinical research using SS-OCTA imaging in AMD.
    Main outcome measures: SS-OCTA imaging of AMD at different stages of disease progression.
    Results: Volumetric SS-OCTA dense raster scans were used to diagnose and stage both exudative and nonexudative AMD. In eyes with nonexudative AMD, a single SS-OCTA scan was used to detect and measure structural features in the macula such as the area and volume of both typical soft drusen and calcified drusen, the presence and location of hyperreflective foci, the presence of reticular pseudodrusen, also known as subretinal drusenoid deposits, the thickness of the outer retinal layer, the presence and thickness of basal laminar deposits, the presence and area of persistent choroidal hypertransmission defects, and the presence of treatment-naïve nonexudative macular neovascularization. In eyes with exudative AMD, the same SS-OCTA scan pattern was used to detect and measure the presence of macular fluid, the presence and type of macular neovascularization, and the response of exudation to treatment with vascular endothelial growth factor inhibitors. In addition, the same scan pattern was used to quantitate choriocapillaris (CC) perfusion, CC thickness, choroidal thickness, and the vascularity of the choroid.
    Conclusions: Compared with using several different instruments to perform multimodal imaging, a single SS-OCTA scan provides a convenient, comfortable, and comprehensive approach for obtaining qualitative and quantitative anatomic and angiographic information to monitor the onset, progression, and response to therapies in both nonexudative and exudative AMD.
    Language English
    Publishing date 2024-04-17
    Publishing country United States
    Document type Journal Article
    ISSN 2468-6530
    ISSN (online) 2468-6530
    DOI 10.1016/j.oret.2024.04.012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Genetic Variants at the Nebulette Locus Are Associated with Myxomatous Mitral Valve Disease Severity in Cavalier King Charles Spaniels.

    Mead, Sophie E / Beijerink, Niek J / O'Brien, Mitchell / Wade, Claire M

    Genes

    2022  Volume 13, Issue 12

    Abstract: ... incidence of the disease, but Cavalier King Charles Spaniels (CKCS) exhibit an unusually high prevalence ...

    Abstract The most common cardiovascular disease in domestic dogs is myxomatous mitral valve disease (MMVD), accounting for 75% of all cardiac disease. An increase in age is generally associated with increased incidence of the disease, but Cavalier King Charles Spaniels (CKCS) exhibit an unusually high prevalence of early-onset MMVD, and thus, potentially greater cardiac morbidity and mortality compared to other breeds. Previous research has suggested that selected candidate risk alleles for MMVD are fixed in CKCSs, including six locations within the
    Language English
    Publishing date 2022-12-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes13122292
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Conversation with Charles P. O'Brien.

    O'Brien, Charles P

    Addiction (Abingdon, England)

    2014  Volume 109, Issue 4, Page(s) 530–537

    MeSH term(s) History, 20th Century ; History, 21st Century ; Psychiatry/history ; Substance-Related Disorders
    Language English
    Publishing date 2014-04
    Publishing country England
    Document type Autobiography ; Historical Article ; Interview ; Portraits
    ZDB-ID 1141051-6
    ISSN 1360-0443 ; 0965-2140
    ISSN (online) 1360-0443
    ISSN 0965-2140
    DOI 10.1111/add.12318
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Genetic Variants at the Nebulette Locus Are Associated with Myxomatous Mitral Valve Disease Severity in Cavalier King Charles Spaniels

    Mead, Sophie E. / Beijerink, Niek J. / O’Brien, Mitchell / Wade, Claire M.

    Genes (Basel). 2022 Dec. 05, v. 13, no. 12

    2022  

    Abstract: ... incidence of the disease, but Cavalier King Charles Spaniels (CKCS) exhibit an unusually high prevalence ...

    Abstract The most common cardiovascular disease in domestic dogs is myxomatous mitral valve disease (MMVD), accounting for 75% of all cardiac disease. An increase in age is generally associated with increased incidence of the disease, but Cavalier King Charles Spaniels (CKCS) exhibit an unusually high prevalence of early-onset MMVD, and thus, potentially greater cardiac morbidity and mortality compared to other breeds. Previous research has suggested that selected candidate risk alleles for MMVD are fixed in CKCSs, including six locations within the Nebulette (NEBL) gene on CFA2. The current study analysed genotypes of 180 Australian CKCSs at the identified risk loci. Of these, 178 were phenotyped for severity of disease by echocardiographic measurements of left atrium to aortic root ratio (LA:Ao) and weight normalised left ventricular end diastolic diameter (LVIDdN). Genotyping array markers correctly predicted the genotype at the risk-variant loci in the CKCS population, and the NEBL1, NEBL2 and NEBL3 variants were observed to be in perfect linkage disequilibrium in this cohort. The CKCS cohort included 6/178 dogs being heterozygous for the protective/wild-type alleles at the NEBL locus. The mean LA:Ao and LVIDdN scores of these dogs heterozygous at NEBL1-3 variants were significantly smaller, and with significantly lower variance compared to age-matched CKCSs that were homozygous for risk alleles. The lower cardiac measurements in the heterozygous dogs indicate a significantly reduced risk of severe MMVD disease. Our analysis suggests that despite relative fixation of the NEBL risk alleles, healthy reference alleles at NEBL1-3 exist in low frequency in the CKCS breed and can be used to reduce MMVD severity and mortality.
    Keywords disease severity ; echocardiography ; genes ; genotyping ; heart diseases ; heterozygosity ; homozygosity ; linkage disequilibrium ; loci ; mortality ; risk ; risk reduction ; variance
    Language English
    Dates of publication 2022-1205
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2527218-4
    ISSN 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes13122292
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Interview with Eddy Award Winner Charles O'Brien, MD, PhD.

    O'Brien, Charles P / Denis, Cecile

    Drug and alcohol dependence

    2014  Volume 143, Page(s) 281–282

    MeSH term(s) Awards and Prizes ; History, 20th Century ; History, 21st Century ; Psychiatry/history ; United States
    Language English
    Publishing date 2014-10-15
    Publishing country Ireland
    Document type Biography ; Historical Article ; Interview
    ZDB-ID 519918-9
    ISSN 1879-0046 ; 0376-8716
    ISSN (online) 1879-0046
    ISSN 0376-8716
    DOI 10.1016/j.drugalcdep.2014.08.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: MATTHEW H. VAN DAM & CHARLES W. O'BRIEN (2015) Review of the genus Miloderes Casey, 1888 (Coleoptera: Curculionidae: Entiminae), with desciptions of three new species. Zootaxa, 4006 (2): 247-284.

    Dam, Matthew H Van / O'brien, Charles W

    Zootaxa

    2016  Volume 4107, Issue 4, Page(s) 600

    Language English
    Publishing date 2016-05-04
    Publishing country New Zealand
    Document type Journal Article
    ISSN 1175-5334
    ISSN (online) 1175-5334
    DOI 10.11646/zootaxa.4107.4.10
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Lionel Charles Robbins, 1898 - 1984

    O'Brien, Denis P

    The economic journal : the journal of the Royal Economic Society 389 = Vol. 98 ,March, S. 104-125

    1988  Volume 98

    Author's details D. P. O'Brien
    Keywords Großbritannien
    Language English
    Publisher Wiley-Blackwell
    Publishing place Oxford [u.a.]
    Document type Article
    ZDB-ID 3025-9 ; 1473822-3
    ISSN 1468-0297 ; 0013-0133
    ISSN (online) 1468-0297
    ISSN 0013-0133
    Database ECONomics Information System

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  8. Article: Dr. Warqneh Charles Martin of Ethiopia.

    O'Brien, H R

    Journal of medical education

    1966  Volume 41, Issue 1, Page(s) 41–44

    MeSH term(s) Education, Medical/history ; Ethiopia ; History of Medicine
    Language English
    Publishing date 1966-01
    Publishing country United States
    Document type Biography ; Historical Article ; Journal Article
    ZDB-ID 300905-1
    ISSN 0022-2577
    ISSN 0022-2577
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Mitigation of Acute Ammonia Emissions With Biochar During Swine Manure Agitation Before Pump-Out

    Baitong Chen / Jacek A. Koziel / Andrzej Białowiec / Myeongseong Lee / Hantian Ma / Samuel O’Brien / Peiyang Li / Zhanibek Meiirkhanuly / Robert C. Brown

    Frontiers in Environmental Science, Vol

    Proof-of-the-Concept

    2021  Volume 9

    Abstract: ... Biochar mitigates NH3 emissions from manure over the long-term. The objective of this research was ... porous (HAP from corn stover) and red oak (RO), were tested. The 6 and 12 mm-thick layers of biochar ... of nutrients in manure with biochar. ...

    Abstract Ammonia (NH3) emissions from animal agriculture can cause eutrophication of water ecosystems and are precursors to secondary particulate matter (PM2.5). NH3 emissions from stored swine manure represent nutrient loss affecting the fertilizing value of manure. The short-term emission bursts occur when farmers agitate manure before emptying storage and fertilizing fields. There is no proven technology to mitigate gaseous emissions during agitation, while the hazards of acute releases (e.g., H2S) are well-known. Biochar mitigates NH3 emissions from manure over the long-term. The objective of this research was to evaluate the mitigation of acute NH3 emissions during/after agitation. Two biochars, highly alkaline and porous (HAP from corn stover) and red oak (RO), were tested. The 6 and 12 mm-thick layers of biochar powder were surficial applied followed by 3 min agitation. NH3 concentrations were measured before/during/after agitation. Mitigation was assessed by comparing: (i) the maximum (peak) flux, (ii) total emission (from agitation start till NH3 concentration returned to the before-agitation), and (iii) the total emissions during agitation. The 12 mm HAP significantly (p < 0.05) reduced (i–iii) by 63, 70, and 85%, respectively. The 6 mm HAP significantly reduced (i–iii) by 76, 75, and 78%, respectively. The 12 mm RO significantly reduced (i–iii) by 9, 53, and 57%, respectively. The 6 mm RO significantly reduced (i–iii) by 61, 86, and 63%, respectively. The NH3 emission kinetics model confirmed that a 6 mm dose was just as effective as the larger dose. More research is needed to optimize and scale-up mitigating emissions and retention of nutrients in manure with biochar.
    Keywords waste management ; nitrogen ; air pollution ; agricultural safety ; fertilizer ; biocoal ; Environmental sciences ; GE1-350
    Subject code 571
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Osteoclasts, Master Sculptors of Bone.

    Veis, Deborah J / O'Brien, Charles A

    Annual review of pathology

    2022  Volume 18, Page(s) 257–281

    Abstract: Osteoclasts are multinucleated cells with the unique ability to resorb bone matrix. Excessive production or activation of osteoclasts leads to skeletal pathologies that affect a significant portion of the population. Although therapies that effectively ... ...

    Abstract Osteoclasts are multinucleated cells with the unique ability to resorb bone matrix. Excessive production or activation of osteoclasts leads to skeletal pathologies that affect a significant portion of the population. Although therapies that effectively target osteoclasts have been developed, they are associated with sometimes severe side effects, and a fuller understanding of osteoclast biology may lead to more specific treatments. Along those lines, a rich body of work has defined essential signaling pathways required for osteoclast formation, function, and survival. Nonetheless, recent studies have cast new light on long-held views regarding the origin of these cells during development and homeostasis, their life span, and the cellular sources of factors that drive their production and activity during homeostasis and disease. In this review, we discuss these new findings in the context of existing work and highlight areas of ongoing and future investigation.
    MeSH term(s) Humans ; Osteoclasts/metabolism ; Osteoclasts/pathology ; Bone Resorption/drug therapy ; Bone Resorption/metabolism ; Bone Resorption/pathology ; Signal Transduction/physiology ; Cell Differentiation
    Language English
    Publishing date 2022-10-07
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, N.I.H., Extramural
    ZDB-ID 2227429-7
    ISSN 1553-4014 ; 1553-4006
    ISSN (online) 1553-4014
    ISSN 1553-4006
    DOI 10.1146/annurev-pathmechdis-031521-040919
    Database MEDical Literature Analysis and Retrieval System OnLINE

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