LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 63

Search options

  1. Article ; Online: Ultrasound of the Normal and Abnormal Vas Deferens.

    Kerr, Dana Middleton / Middleton, William Dana

    Ultrasound quarterly

    2022  Volume 38, Issue 3, Page(s) 224–236

    Abstract: Abstract: The extrapelvic portion of the vas deferens is readily visible with ultrasound but often overlooked. Several publications have described the scanning technique and the normal anatomy of the vas deferens. Sonographic evaluation of the vas ... ...

    Abstract Abstract: The extrapelvic portion of the vas deferens is readily visible with ultrasound but often overlooked. Several publications have described the scanning technique and the normal anatomy of the vas deferens. Sonographic evaluation of the vas deferens provides critical information in the workup of male infertility. Obstruction, inflammatory conditions, and neoplasms of the vas deferens can also be diagnosed with ultrasound. Knowledge of the normal and abnormal appearance of the vas deferens improves scans of the scrotum and expands the conditions that can be recognized and accurately diagnosed with ultrasound.
    MeSH term(s) Humans ; Male ; Pelvis ; Scrotum/diagnostic imaging ; Ultrasonography/methods ; Vas Deferens/diagnostic imaging
    Language English
    Publishing date 2022-09-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 645107-x
    ISSN 1536-0253 ; 0894-8771
    ISSN (online) 1536-0253
    ISSN 0894-8771
    DOI 10.1097/RUQ.0000000000000588
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Reflections on the Ultrasound Mirror Image Artifact.

    Kerr, Dana Middleton / Middleton, William Dana

    Ultrasound quarterly

    2021  Volume 36, Issue 4, Page(s) 287–299

    Abstract: A key assumption in ultrasound is that the reflected echoes that return to the transducer travel in a straight line. Mirror image artifacts occur when the transmitted pulse and returning echo reflect off of a highly reflective interface (an acoustic ... ...

    Abstract A key assumption in ultrasound is that the reflected echoes that return to the transducer travel in a straight line. Mirror image artifacts occur when the transmitted pulse and returning echo reflect off of a highly reflective interface (an acoustic mirror) and change direction before returning to the transducer, thereby breaking this assumption. Mirror image artifacts are seen throughout the body on gray scale, color Doppler, power Doppler, and spectral Doppler. They may closely duplicate the true structure in shape and echo strength, may distort the true structure, may appear weaker than the true structure, or may appear on images that do not simultaneously show the true structure. If not properly recognized, mirror image artifacts can be misinterpreted as true pathology and lead to additional unnecessary tests and potentially harmful interventions.
    MeSH term(s) Artifacts ; Humans ; Ultrasonography/methods
    Language English
    Publishing date 2021-06-03
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 645107-x
    ISSN 1536-0253 ; 0894-8771
    ISSN (online) 1536-0253
    ISSN 0894-8771
    DOI 10.1097/RUQ.0000000000000525
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Acoustic recording tags provide insight into the springtime acoustic behavior of sei whales in Massachusetts Bay.

    Cusano, Dana A / Wiley, David / Zeh, Julia M / Kerr, Iain / Pensarosa, Alicia / Zadra, Chris / Shorter, K Alex / Parks, Susan E

    The Journal of the Acoustical Society of America

    2023  Volume 154, Issue 6, Page(s) 3543–3555

    Abstract: The acoustic ecology of sei whales (Balaenoptera borealis) is poorly understood due to limited direct observation of the behavioral context of sound production and individual behavior. Suction cup-attached acoustic recording tags were deployed on sei ... ...

    Abstract The acoustic ecology of sei whales (Balaenoptera borealis) is poorly understood due to limited direct observation of the behavioral context of sound production and individual behavior. Suction cup-attached acoustic recording tags were deployed on sei whales to unambiguously assign call types and explore the acoustic behavior of this endangered species. Twelve tag deployments resulted in ∼173 h of acoustic data and 1030 calls. Sound types included downsweeps and three previously undescribed call types. Knocks were short duration (<1 s), with an average peak frequency of 330 Hz. Pulse type 1 and pulse type 2 calls, typically produced in sequences, were short in duration (0.08 and 0.28 s) and low in average peak frequency (50 and 26 Hz), with relatively high received levels. Average call rates for all call types combined were three calls per hour, but increased during twilight. Sex differences in call type usage included a higher use of pulses by females and knocks by males. Calls were almost exclusively produced at depths <10 m, although whales rarely dove deeper in this study. These data provide a more comprehensive picture of the acoustic and behavioral ecology of sei whales than previously possible, which can inform future conservation efforts for this endangered species.
    MeSH term(s) Animals ; Female ; Male ; Balaenoptera ; Vocalization, Animal ; Bays ; Acoustics ; Endangered Species ; Massachusetts ; Cetacea
    Language English
    Publishing date 2023-12-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 219231-7
    ISSN 1520-8524 ; 0001-4966
    ISSN (online) 1520-8524
    ISSN 0001-4966
    DOI 10.1121/10.0022570
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Food Insecurity, Food Assistance, and Psychological Distress among University Students: Cross-Sectional Survey Western Australia, 2020.

    Dana, Liyuwork Mitiku / Wright, Janine / Ward, Rebecca / Dantas, Jaya A R / Dhaliwal, Satvinder S / Lawrence, Blake / O'Connor, Moira / Booth, Sue / Kerr, Deborah A / Pollard, Christina M

    Nutrients

    2023  Volume 15, Issue 11

    Abstract: University students have been identified as a population sub-group vulnerable to food insecurity. This vulnerability increased in 2020 due to the COVID-19 pandemic. This study aimed to assess factors associated with food insecurity among university ... ...

    Abstract University students have been identified as a population sub-group vulnerable to food insecurity. This vulnerability increased in 2020 due to the COVID-19 pandemic. This study aimed to assess factors associated with food insecurity among university students and the differences between students with and without children. A cross-sectional survey of (n = 213) students attending one university in Western Australia measured food insecurity, psychological distress, and socio-demographic characteristics. Logistic regression analyses were conducted to identify factors associated with food insecurity. Forty-eight percent of students who responded to the survey had experienced food insecurity in 2020. International students who were studying in Australia were nine times more likely to experience food insecurity than domestic students (AOR = 9.13; 95% CI = 2.32-35.97). International students with children were more likely to experience food insecurity than international students without children (
    MeSH term(s) Child ; Humans ; Cross-Sectional Studies ; Socioeconomic Factors ; COVID-19/epidemiology ; Western Australia/epidemiology ; Universities ; Pandemics ; Food Supply ; Australia/epidemiology ; Students/psychology ; Psychological Distress ; Food Insecurity
    Language English
    Publishing date 2023-05-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu15112431
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Reef-scale trends in Florida

    Miller, Margaret W / Kerr, Katryna / Williams, Dana E

    PeerJ

    2016  Volume 4, Page(s) e2523

    Abstract: Since the listing ... ...

    Abstract Since the listing of
    Language English
    Publishing date 2016-09-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2703241-3
    ISSN 2167-8359
    ISSN 2167-8359
    DOI 10.7717/peerj.2523
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Development and Internal Validation of a Clinical and Genetic Risk Score for Rheumatoid Arthritis-Associated Interstitial Lung Disease.

    Wheeler, Austin M / Baker, Joshua F / Riley, Thomas / Yang, Yangyuna / Roul, Punyasha / Wysham, Katherine D / Cannon, Grant W / Kunkel, Gary / Kerr, Gail / Ascherman, Dana P / Monach, Paul / Reimold, Andreas / Poole, Jill A / Merriman, Tony R / Mikuls, Ted R / England, Bryant R

    Rheumatology (Oxford, England)

    2024  

    Abstract: Objective: Although clinical and genetic risk factors have been identified for rheumatoid arthritis-associated interstitial lung disease (RA-ILD), there are no current tools allowing for risk stratification. We sought to develop and validate an ILD risk ...

    Abstract Objective: Although clinical and genetic risk factors have been identified for rheumatoid arthritis-associated interstitial lung disease (RA-ILD), there are no current tools allowing for risk stratification. We sought to develop and validate an ILD risk model in a large, multicentre, prospective RA cohort.
    Methods: Participants in the Veterans Affairs RA (VARA) registry were genotyped for 12 single nucleotide polymorphisms (SNPs) associated with idiopathic pulmonary fibrosis. ILD was validated through systematic record review. A genetic risk score (GRS) was computed from minor alleles weighted by effect size with ILD, using backward selection. The GRS was combined with clinical risk factors within a logistic regression model. Internal validation was completed using bootstrapping, and model performance was assessed by the area under the receiver operating curve (AUC).
    Results: Of 2,386 participants (89% male, mean age 69.5 years), 9.4% had ILD. Following backward selection, five SNPs contributed to the GRS. The GRS and clinical factors outperformed clinical factors alone in discriminating ILD (AUC 0.675 vs 0.635, p< 0.001). The shrinkage-corrected performance for combined and clinical-only models was 0.667 (95% CI 0.628, 0.712) and 0.623 (95% CI 0.584, 0.651), respectively. Twenty percent of the cohort had a combined risk score below a cut-point with >90% sensitivity.
    Conclusion: A clinical and genetic risk model discriminated ILD in a large, multicentre RA cohort better than a clinical-only model, excluding 20% of the cohort from low-yield testing. These results demonstrate the potential utility of a GRS in RA-ILD and support further investigation into individualized risk stratification and screening.
    Language English
    Publishing date 2024-01-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 1464822-2
    ISSN 1462-0332 ; 1462-0324
    ISSN (online) 1462-0332
    ISSN 1462-0324
    DOI 10.1093/rheumatology/keae001
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Plasma Matrix Metalloproteinase Concentrations and Risk of Interstitial Lung Disease in a Prospective Rheumatoid Arthritis Cohort.

    Luedders, Brent A / Wheeler, Austin M / Ascherman, Dana P / Baker, Joshua F / Duryee, Michael J / Yang, Yangyuna / Roul, Punyasha / Wysham, Katherine D / Monach, Paul / Reimold, Andreas / Kerr, Gail S / Kunkel, Gary / Cannon, Grant W / Poole, Jill A / Thiele, Geoffrey M / Mikuls, Ted R / England, Bryant R

    Arthritis & rheumatology (Hoboken, N.J.)

    2024  

    Abstract: Objective: To evaluate the associations of plasma matrix metalloproteinases (MMPs) with prevalent and incident interstitial lung disease (ILD) in people with rheumatoid arthritis (RA).: Methods: Within a multicenter, prospective cohort of US veterans ...

    Abstract Objective: To evaluate the associations of plasma matrix metalloproteinases (MMPs) with prevalent and incident interstitial lung disease (ILD) in people with rheumatoid arthritis (RA).
    Methods: Within a multicenter, prospective cohort of US veterans with RA, we performed a cross-sectional study of prevalent ILD and cohort study of incident ILD. ILD diagnoses were validated by medical record review of provider diagnoses and chest imaging and/or pathology reports. MMP-1, 3, 7, and 9 concentrations were measured in plasma samples, then standardized and categorized into quartiles. The associations of MMPs with prevalent and incident ILD were assessed with logistic (prevalent) and Cox (incident) regression models adjusted for RA-ILD risk factors.
    Results: Among 2,312 participants (88.9% male; mean age 63.8 years), 96 had prevalent ILD. Incident ILD developed in 130 participants over 17,378 person-years of follow-up (crude incidence rate 7.5/1,000 person-years). Participants with the highest quartile of MMP-7 concentrations had a nearly four-fold increased odds of prevalent ILD (adjusted odds ratio 3.78 [95% confidence interval (95% CI) 1.86-7.65]) and over two-fold increased risk of incident ILD (adjusted hazard ratio 2.33 [95% CI 1.35-4.02]). Higher MMP-9 concentrations were also associated with prevalent and incident ILD, as well as negatively correlated with forced vital capacity among those with prevalent ILD (r = -0.30, P = 0.005).
    Conclusion: MMP-7 and MMP-9 were strongly associated with both prevalent and incident ILD in this large, multicenter RA cohort after adjustment for other RA-ILD risk factors. These population-level findings further support a potential pathogenic role for MMPs in RA-ILD and suggest that their measurement could facilitate RA-ILD risk stratification.
    Language English
    Publishing date 2024-01-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2756371-6
    ISSN 2326-5205 ; 2326-5191
    ISSN (online) 2326-5205
    ISSN 2326-5191
    DOI 10.1002/art.42812
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Predicting Health-Related Quality of Life Outcomes Following Major Scoliosis Surgery in Adolescents: A Latent Class Growth Analysis.

    Kerr, Jack / Abraham, Edward / Vandewint, Amanda / Bigney, Erin / Hebert, Jeffrey / Richardson, Eden / El-Mughayyar, Dana / Chorney, Jill / El-Hawary, Ron / Porsche Study Group / McPhee, Rory / Manson, Neil

    Global spine journal

    2022  Volume 14, Issue 3, Page(s) 902–913

    Abstract: Study design: Prospective cohort study.: Objectives: To identify patient trajectories of recovery defined by change in health-related quality of life (HRQOL) following surgery for adolescent idiopathic scoliosis (AIS). To explore possible predictors ... ...

    Abstract Study design: Prospective cohort study.
    Objectives: To identify patient trajectories of recovery defined by change in health-related quality of life (HRQOL) following surgery for adolescent idiopathic scoliosis (AIS). To explore possible predictors of trajectory membership.
    Methods: Adolescent patients scheduled to undergo spinal fusion for AIS were enrolled in the
    Results: Data from up to 190 patients were included (87.4% female; mean±SD age = 14.6 ± 1.9 years). Three trajectory subgroups were identified for PH and 4 trajectories were found for PSH, with a majority of patients scoring within the established range of healthy adolescents 12 months post-surgery. Increased child and parent pain catastrophizing, child trait anxiety and previous hospitalizations were associated with poorer PH outcomes, whereas increased child and parent pain catastrophizing, child state and trait anxiety, and parent state and trait anxiety were associated with poorer PSH trajectories.
    Conclusions: The PH and PSH trajectories identified in this study and the factors associated with their membership may inform surgical decision-making for AIS while facilitating patient and family counselling regarding peri-operative recovery and expectations.
    Language English
    Publishing date 2022-09-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 2648287-3
    ISSN 2192-5690 ; 2192-5682
    ISSN (online) 2192-5690
    ISSN 2192-5682
    DOI 10.1177/21925682221126451
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Workplace Harassment, Cyber Incivility, and Climate in Academic Medicine.

    Jagsi, Reshma / Griffith, Kent / Krenz, Chris / Jones, Rochelle D / Cutter, Christina / Feldman, Eva L / Jacobson, Clare / Kerr, Eve / Paradis, Kelly C / Singer, Kanakadurga / Spector, Nancy D / Stewart, Abigail J / Telem, Dana / Ubel, Peter A / Settles, Isis

    JAMA

    2023  Volume 329, Issue 21, Page(s) 1848–1858

    Abstract: Importance: The culture of academic medicine may foster mistreatment that disproportionately affects individuals who have been marginalized within a given society (minoritized groups) and compromises workforce vitality. Existing research has been ... ...

    Abstract Importance: The culture of academic medicine may foster mistreatment that disproportionately affects individuals who have been marginalized within a given society (minoritized groups) and compromises workforce vitality. Existing research has been limited by a lack of comprehensive, validated measures, low response rates, and narrow samples as well as comparisons limited to the binary gender categories of male or female assigned at birth (cisgender).
    Objective: To evaluate academic medical culture, faculty mental health, and their relationship.
    Design, setting, and participants: A total of 830 faculty members in the US received National Institutes of Health career development awards from 2006-2009, remained in academia, and responded to a 2021 survey that had a response rate of 64%. Experiences were compared by gender, race and ethnicity (using the categories of Asian, underrepresented in medicine [defined as race and ethnicity other than Asian or non-Hispanic White], and White), and lesbian, gay, bisexual, transgender, queer (LGBTQ+) status. Multivariable models were used to explore associations between experiences of culture (climate, sexual harassment, and cyber incivility) with mental health.
    Exposures: Minoritized identity based on gender, race and ethnicity, and LGBTQ+ status.
    Main outcomes and measures: Three aspects of culture were measured as the primary outcomes: organizational climate, sexual harassment, and cyber incivility using previously developed instruments. The 5-item Mental Health Inventory (scored from 0 to 100 points with higher values indicating better mental health) was used to evaluate the secondary outcome of mental health.
    Results: Of the 830 faculty members, there were 422 men, 385 women, 2 in nonbinary gender category, and 21 who did not identify gender; there were 169 Asian respondents, 66 respondents underrepresented in medicine, 572 White respondents, and 23 respondents who did not report their race and ethnicity; and there were 774 respondents who identified as cisgender and heterosexual, 31 as having LGBTQ+ status, and 25 who did not identify status. Women rated general climate (5-point scale) more negatively than men (mean, 3.68 [95% CI, 3.59-3.77] vs 3.96 [95% CI, 3.88-4.04], respectively, P < .001). Diversity climate ratings differed significantly by gender (mean, 3.72 [95% CI, 3.64-3.80] for women vs 4.16 [95% CI, 4.09-4.23] for men, P < .001) and by race and ethnicity (mean, 4.0 [95% CI, 3.88-4.12] for Asian respondents, 3.71 [95% CI, 3.50-3.92] for respondents underrepresented in medicine, and 3.96 [95% CI, 3.90-4.02] for White respondents, P = .04). Women were more likely than men to report experiencing gender harassment (sexist remarks and crude behaviors) (71.9% [95% CI, 67.1%-76.4%] vs 44.9% [95% CI, 40.1%-49.8%], respectively, P < .001). Respondents with LGBTQ+ status were more likely to report experiencing sexual harassment than cisgender and heterosexual respondents when using social media professionally (13.3% [95% CI, 1.7%-40.5%] vs 2.5% [95% CI, 1.2%-4.6%], respectively, P = .01). Each of the 3 aspects of culture and gender were significantly associated with the secondary outcome of mental health in the multivariable analysis.
    Conclusions and relevance: High rates of sexual harassment, cyber incivility, and negative organizational climate exist in academic medicine, disproportionately affecting minoritized groups and affecting mental health. Ongoing efforts to transform culture are necessary.
    MeSH term(s) Female ; Humans ; Male ; Ethnicity/psychology ; Ethnicity/statistics & numerical data ; Incivility/statistics & numerical data ; Sexual and Gender Minorities/psychology ; Sexual and Gender Minorities/statistics & numerical data ; Sexual Harassment/psychology ; Sexual Harassment/statistics & numerical data ; Workplace/organization & administration ; Workplace/psychology ; Workplace/statistics & numerical data ; Academic Medical Centers/organization & administration ; Academic Medical Centers/statistics & numerical data ; Cyberbullying/psychology ; Cyberbullying/statistics & numerical data ; Working Conditions/organization & administration ; Working Conditions/psychology ; Working Conditions/statistics & numerical data ; Organizational Culture ; Social Marginalization/psychology ; Minority Groups/psychology ; Minority Groups/statistics & numerical data ; Mental Health/statistics & numerical data ; Faculty, Medical/organization & administration ; Faculty, Medical/psychology ; Faculty, Medical/statistics & numerical data ; Medicine/organization & administration ; Medicine/statistics & numerical data ; United States/epidemiology ; Asian/psychology ; Asian/statistics & numerical data ; White/psychology ; White/statistics & numerical data ; Surveys and Questionnaires ; Racism/psychology ; Racism/statistics & numerical data ; Sexism/psychology ; Sexism/statistics & numerical data ; Prejudice/ethnology ; Prejudice/psychology ; Prejudice/statistics & numerical data
    Language English
    Publishing date 2023-06-05
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2958-0
    ISSN 1538-3598 ; 0254-9077 ; 0002-9955 ; 0098-7484
    ISSN (online) 1538-3598
    ISSN 0254-9077 ; 0002-9955 ; 0098-7484
    DOI 10.1001/jama.2023.7232
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Isolated cardiac desminopathy.

    Koullouros, Michalis / A M Chouari, Tarak / Stewart, Andrew / Kerr, Keith / Dawson, Dana

    European heart journal cardiovascular Imaging

    2017  Volume 18, Issue 7, Page(s) 822

    MeSH term(s) Adult ; Biopsy, Needle ; Cardiac Catheterization/methods ; Cardiomyopathies/diagnostic imaging ; Cardiomyopathies/pathology ; Cardiomyopathies/therapy ; Defibrillators, Implantable ; Dyspnea/diagnosis ; Dyspnea/etiology ; Echocardiography, Doppler, Color/methods ; Edema/diagnosis ; Edema/etiology ; Electrocardiography/methods ; Female ; Humans ; Immunohistochemistry ; Muscular Dystrophies/diagnostic imaging ; Muscular Dystrophies/pathology ; Muscular Dystrophies/therapy ; Pulmonary Wedge Pressure ; Treatment Outcome
    Language English
    Publishing date 2017-04-05
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 2638345-7
    ISSN 2047-2412 ; 2047-2404
    ISSN (online) 2047-2412
    ISSN 2047-2404
    DOI 10.1093/ehjci/jex049
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top