bluuebunny/crossref_metadata_2025_split huggingface dataset:
Readmission rates and associated factors following rib cage injury
Authors: Baker Jennifer E. , Skinner Mitchell , Heh Victor , Pritts Timothy A. , Goodman Michael D. , Millar D. Anderson , Janowak Christopher F. 
Published: June 2019

BACKGROUND
There remains a lack of knowledge about readmission characteristics after sustaining rib fractures. We aimed to determine rates, characteristics, and predictive/protective factors associated with unexpected reevaluation and readmission after rib cage injury.

METHODS
A retrospective review was performed based on trauma patients evaluated at an urban Level I trauma center from January 2014 to December 2016. Adult patients sustaining blunt trauma with more than one rib fracture or a sternomanubrial fracture were defined as having moderate to severe rib cage injury. Exclusion criteria included penetrating injury, death during initial hospitalization, and only one rib fracture. Reevaluation was defined as presenting at a hospital within 90 days of discharge urgently or emergently. Demographics, injury characteristics, comorbidities, complications, imaging, and readmission data were collected. Univariate and multivariate analysis was performed with a significance of p less than 0.05.

RESULTS
During the study period, 11,667 patients underwent trauma evaluation, of which 1,717 patients were found to have a moderate to severe rib cage injury. Within 90 days, 397 (23.1%) of patients underwent reevaluation, while 177 (10.3%) required readmission. One hundred forty-two (8.3%) patients were reevaluated specifically for chest-related complaints, and 55 (3.2%) required readmission. On univariate analysis, Injury Severity Score greater than 15, hospital length of stay longer than 7 days, intensive care unit (ICU) length of stay longer than 3 days, a worsened chest x-ray at discharge, a psychiatric comorbidity, a smoking comorbidity, deep vein thrombosis, unplanned readmission to the ICU, and unplanned intubation were higher in the overall reevaluation cohort. On multivariate analysis, age of 15 years to 35 years, Risk Assessment Profile score greater than 8, hypertension, psychiatric comorbidity, current smoker, and unplanned return to the ICU on index admission were predictive of reevaluation of overall reevaluation.

CONCLUSION
Moderate to severe rib cage injury is associated with high rates of reevaluation and readmission. Younger patients who smoke and required a return to the ICU are at greater risk for readmission.

LEVEL OF EVIDENCE
Level IV, Prognostic and Epidemiologic.
Long-term Outcomes Following Kidney Transplantation From Donors With Acute Kidney Injury
Authors: Heilman Raymond L. , Smith Maxwell L. , Smith Byron H. , Kumar Anjushree , Srinivasan Ananth , Huskey Janna L. , Khamash Hasan A. , Jadlowiec Caroline C. , Mathur Amit K. , Moss Adyr A. , Reddy Kunam S. 
Published: June 2019

Background.
Kidneys from deceased donors with acute kidney injury (AKI) are more likely to be discarded because of concerns for poor outcomes after transplantation. The aim of this study was to determine the long-term outcomes of a large cohort of patients transplanted utilizing kidneys from deceased donors with AKI.

Methods.
All patients receiving a deceased donor kidney transplant during a recent 10-year period were included. Acute Kidney Injury Network (AKIN) criteria were used to classify the donors. Donor kidneys with >10% cortical necrosis or more than mild chronic changes were discarded. The primary outcome is the combined endpoint of death or graft loss.

Results.
The cohort included 1313 kidneys from 974 donors, AKIN stage 0 (no AKI) in 319 (24.3%), stage 1 in 370 (28.2%), stage 2 in 177 (13.5), and stage 3 in 447 (34.0%). Estimated 5-year graft survival (95% confidence interval) was 78.5% (72.5-84.5), 77.8% (72.8-82.1), 83.8% (76.8-88.9), and 84.6% (79.5-88.7) for AKIN donor stage 0 to 3, respectively (log-rank P = 0.10). After adjusting for baseline differences, the hazard ratio (95% confidence interval) for the combined endpoint for the AKIN stage 3 group (relative to AKIN 0 group) was 0.70 (0.45-1.10). Delayed graft function occurred in 44.6% and 75.4% of AKIN 2 and 3 groups, as compared to 33.9% and 33.5% in AKIN 0 and 1 (P < 0.001).

Conclusion.
We conclude that transplanting selected kidneys from deceased donors with AKI with preimplantation biopsy showing <10% cortical necrosis and no more than mild chronic changes have excellent long-term graft survival.
A Nationwide Survey of Hepatitis E Virus Infection and Chronic Hepatitis in Heart and Kidney Transplant Recipients in Japan
Authors: Owada Yohei , Oshiro Yukio , Inagaki Yuki , Harada Hiroshi , Fujiyama Nobuhiro , Kawagishi Naoki , Yagisawa Takashi , Usui Joichi , Akutsu Naotake , Itabashi Yoshihiro , Saito Kazuhide , Watarai Yoshihiko , Ichimaru Naotsugu , Imamura Ryoichi , Kyakuno Miyaji , Ide Kentaro , Shibuya Yuichi , Okabe Yasuhiro , Ono Minoru , Sasaki Konosuke , Shiose Akira , Yamagishi Kazumasa , Ohnishi Hiroshi , Nagashima Shigeo , Takahashi Masaharu , Yuzawa Kenji , Okamoto Hiroaki , Ohkohchi Nobuhiro 
Published: June 2019

Background.
Recently, chronic hepatitis E has been reported in solid organ transplant (SOT) recipients in European countries. Previously, we clarified the prevalence of hepatitis E virus (HEV) infection in Japanese liver transplant recipients and identified 2 chronic hepatitis E patients infected by blood transfusion. However, the rate of HEV infection in recipients of SOTs other than liver in Japan remains unclear, so we conducted a nationwide survey to clarify the prevalence of chronic HEV infection in Japanese heart and kidney transplant recipients.

Methods.
A total of 99 heart and 2526 kidney transplant recipients in 17 hospitals in Japan were examined for the presence of the IgG class of anti-HEV antibodies as well as for serum HEV RNA.

Results.
The prevalence of anti-HEV IgG among heart and kidney transplant recipients was 7.07% (7/99) and 4.08% (103/2526), respectively. One heart transplant patient (1.01%) and 11 kidney transplant patients (0.44%) were found to be positive for HEV RNA. The HEV isolates from all viremic patients were typed as genotype 3. Four patients developed chronic hepatitis E after transplantation. Three patients were treated with ribavirin; their liver enzymes normalized, and HEV RNA became negative immediately. Sustained virologic response was achieved in all cases.

Conclusions.
This is the first nationwide survey of HEV infection in Japanese heart and kidney transplant recipients. The prevalence of anti-HEV IgG and HEV RNA in heart and kidney transplant recipients in Japan was lower than that in European countries. Of note, 42% of viremic transplant patients developed chronic hepatitis.
Induction of Accommodation by Anti–complement Component 5 Antibody-based Immunosuppression in ABO-incompatible Heart Transplantation
Authors: Park Sunjoo , Lee Jae-Ghi , Jang Joon Young , Ryu Jung-Hwa , Kim Dong jo , Chang Shin Jae , Kim Hyori , Chung Junho , West Lori , Yang Jaeseok 
Published: June 2019

Background.
Plasmapheresis in combination with immunoglobulin and rituximab is often used to induce accommodation in ABO-incompatible (ABOi) living-donor transplantation; however, this regimen cannot be applied to cases of ABOi deceased-donor transplantation. Here, we investigated whether an anti–complement component 5 (C5) antibody-based regimen can induce accommodation in ABOi heart transplantation.

Methods.
Both IgM and IgG anti-blood type A antibodies were induced in wild-type mice by sensitization using human blood type A antigen. Heterotopic ABOi heart transplantation was performed from human blood type A-transgenic C57BL/6J mice to sensitized wild-type DBA/2 mice.

Results.
Either anti-C5 antibody or conventional triple immunosuppressants (corticosteroid, tacrolimus, mycophenolate mofetil) alone did not induce accommodation in majority of ABOi heart allografts, whereas their combination induced accommodation in more than 70% of cases despite the presence of anti-A antibodies. The combination therapy markedly suppressed the infiltration of T cells and macrophages into ABOi allografts, despite mild deposition of IgG and C4d. T-cell activation and differentiation into Th1, Th2, and Th17 cells were suppressed along with CD49dhighCD4+ T and follicular helper T cells in the combination treatment group. CD24+ B cells, including both CD24+CD23+ marginal zone B cells and CD24+CD23− T2-marginal zone B cells, were increased in the accommodation group.

Conclusions.
C5 inhibitor-based immunosuppression induced accommodation in murine ABOi heart transplantation, presenting a promising strategy for ABOi deceased-donor transplantation.
Sex and Gender Considerations in Transplant Research: A Scoping Review
Authors: Laprise Claudie , Cole Katherine , Sridhar Vikas Srinivasan , Marenah Tida , Crimi Cassandra , West Lori , Foster Bethany J. , Pilote Louise , Sapir-Pichhadze Ruth 
Published: June 2019

Background.
In response to the promotion of sex and gender integration in health-related research, we conducted a scoping review evaluating to what extent sex and gender were considered in the transplantation literature.

Methods.
We searched Medline and Embase for manuscripts published between January 1946 and October 2016. Two reviewers independently selected manuscripts describing clinical research on stem cells, tissues, or solid organ transplantation with ≥20 participants, which mentioned “sex” and/or “gender” in the title or abstract. For each eligible manuscript, 2 of 5 reviewers extracted data on study design, population (transplant candidates, recipients, donors), transplant type, and study outcomes. We evaluated whether the terms “sex” and “gender” were applied according to their correct definitions and how these variables were handled at the level of study design and analysis.

Results.
Of 7565 search results, 2107 manuscripts met the inclusion criteria. Sex and gender were applied interchangeably in more than half of the studies (57.5%). Rarely were sex or gender, when applied correctly, considered in the primary study question (13.3% and 25.0%, respectively). The majority of the studies considered these variables as confounders (74.6% for sex and 68.2% for gender), and a minority considered them as effect measure modifiers (2.8% for sex and 5.0% for gender).

Conclusions.
Despite a growing awareness of the need to integrate sex and gender in health research, education is required to ensure accurate and meaningful consideration of these concepts. We outline strategies for integrating sex and gender in allotransplantation and donation research during study design and analysis.
Modelling the impact of tuberculosis preventive therapy: the importance of disease progression assumptions
Authors: Sumner Tom , White Richard G. 
Published: June 2019

AbstractBackgroundFollowing infection with Mycobacterium tuberculosis (M.tb) individuals may rapidly develop tuberculosis (TB) disease or enter “latent” infection state with a low risk of progression to disease. The mechanisms underlying this process are incompletely known. Mathematical models use a variety of structures and parameterisations to represent this progression from infection with M.tb to disease. This structural and parametric uncertainty may affect the predicted impact of interventions leading to incorrect conclusions and decision making.MethodsWe used a simple dynamic transmission model to explore the effect of uncertainty in model structure and parameterisation on the predicted impact of scaling up preventive therapy. We compared three commonly used model structures and used parameter values from two different data sources. Models 1 and 2 are equally consistent with observations of the time from infection to disease. Model 3, produces a worse fit to the data, but is widely used in published modelling studies. We simulated treatment of 5% of all M.tb infected individuals per year in a population of 10,000 and calculated the reduction in TB incidence and number needed to treat to avert one TB case over 10 years.ResultsThe predicted impact of the preventive therapy intervention depended on both the model structure and the parameterisation of that structure. For example, at a baseline annual TB incidence of 500/100,000, the impact ranged from 11% to 27% and the number needed to treat to avert one TB case varied between 38 and 124. The relative importance of structure and parameters varied depending on the baseline incidence of TB.DiscussionOur analysis shows that the choice of model structure and the parameterisation can influence the predicted impact of interventions. Modelling studies should consider incorporating structural uncertainty in their analysis. Not doing so may lead to incorrect conclusions on the impact of interventions.
Robin Hood: non-fitting, non-smoothing image detrending for bleaching correction
Authors: Nolan Rory , Iliopoulou Maro , Siebold Christian , Jones E. Yvonne , Padilla-Parra Sergi 
Published: June 2019

ABSTRACTRecent advances in protein labelling—gene tagging with CRIPSR-Cas9—have made it possible to label proteins of interest endogenously. This represents a major breakthrough in the field of quantitative microscopy, especially when quantifying protein-protein interactions. This is because over-expression of labelled proteins may cause a distortion in localization, function and perhaps artificially force protein-protein interactions due to crowding effects. A microscopy technique that is particularly well suited to detect protein interactions with low photon budgets is number and brightness (N&B). Detrending (removal of global trends in data) is a necessary pre-processing step to N&B calculations, but all current detrending methods perform poorly at low intensities. Here, we present the Robin Hood automatic detrending algorithm which performs well at low intensities, evaluating it with simulated and low photon budget live cell images. RH is available as an ImageJ plugin and as an R package.STATEMENT OF SIGNIFICANCEFluorescence microscopy in general and Fluorescence fluctuation methods in particular are very much dependent on detrend algorithms and so far, the user needs to decide an arbitrary number to correct for bleaching when using the box plot or the running average approach. Here, we have developed a tool available to everybody as an ImageJ plugin that is automatic, user-free and able to correct bleached images with very low photon counts.
Myo1e modulates the recruitment of B cells to inguinal lymph nodes
Authors: Girón-Pérez Daniel Alberto , Vadillo Eduardo , Schnoor Michael , Santos-Argumedo Leopoldo 
Published: June 2019

AbstractThe recruitment of leukocyte to high endothelium venules and their migration to the lymph nodes are critical steps to initiate an immune response. Cell migration is regulated by the actin cytoskeleton where myosins have a very import role. Myo1e is a long tail class I myosin highly expressed in B cells that not have been studied in the context of cell migration. By using anin vivomodel, through the use of intravital microscopy, we demonstrated the relevance of Myo1e in the adhesion and the migration of B cells in high endothelial venules. These observations were confirmed byin vitroexperiments. We also registered a reduction in the expression of integrins and F-actin in the protrusion of B lymphocytes membrane. Deficiencies in vesicular trafficking can explain the decrease of integrins on the surface. Interestingly, Myo1e is associated with focal adhesion kinase (FAK). The lack of Myo1e affected the phosphorylation of FAK and AKT, and the activity of RAC-1, disturbing the FAK/PI3K/RAC-1 signaling pathway. Together, our results indicate critical participation of Myo1e in the mechanism of B cell migration.Summary statementMyo1e participate in the adhesion and migration in the high endothelial venules by regulation of integrins and the PI3K/FAK/RAC-1 signaling pathway.
Optogenetic stimulation of the VTA modulates a frequency-specific gain of thalamocortical inputs in infragranular layers of the auditory cortex
Authors: Brunk Michael G. K. , Deane Katrina E. , Kisse Martin , Deliano Matthias , Vieweg Silvia , Ohl Frank W. , Lippert Michael T. , Happel Max F. K. 
Published: June 2019

AbstractBackgroundReward associations during auditory learning induce cortical plasticity in the primary auditory cortex. A prominent source of such influence is the ventral tegmental area (VTA), which conveys a dopaminergic teaching signal to the primary auditory cortex. It is currently unknown, however, how the VTA circuitry thereby influences cortical frequency information processing and spectral integration. In this study, we therefore investigated the temporal effects of direct optogenetic stimulation of the VTA onto spectral integration in the auditory cortex on a synaptic circuit level by current-source-density analysis in anesthetized Mongolian gerbils.ResultsWhile auditory lemniscal input predominantly terminates in the granular input layers III/IV, we found that VTA-mediated modulation of spectral processing is relayed by a different circuit, namely enhanced thalamic inputs to the infragranular layers Vb/VIa. Activation of this circuit yields a frequency-specific gain amplification of local sensory input and enhances corticocortical information transfer, especially in supragranular layers I/II. This effects further persisted over more than 30 minutes after VTA stimulation.ConclusionsAltogether, we demonstrate that the VTA exhibits a long-lasting influence on sensory cortical processing via infragranular layers transcending the signaling of a mere reward-prediction error. Our findings thereby demonstrate a cellular and circuit substrate for the influence of reinforcement-evaluating brain systems on sensory processing in the auditory cortex.
Optogenetic Modulation of Cortical Neurons Using Organic Light Emitting Diodes (OLEDs)
Authors: Sridharan Arati , Shah Ankur , Kumar Swathy Sampath , Kyeh James , Smith Joseph , Blain-Christen Jennifer , Muthuswamy Jit 
Published: June 2019

ABSTRACTObjectiveThere is a need for low power, scalable photoelectronic devices and systems for emerging optogenetic needs in neuromodulation. Conventional light emitting diodes (LEDs) are constrained by power and lead-counts necessary for scalability. Organic LEDs (OLEDs) offer an exciting approach to decrease power and lead-counts while achieving high channel counts on thin, flexible substrates that conform to brain surfaces or peripheral neuronal fibers. In this study, we investigate the potential for using OLEDs to modulate neuronal networks cultured in vitro on a transparent microelectrode array (MEA) and subsequently validate neurostimulation in vivo in a transgenic mouse model.ApproachCultured mouse cortical neurons were transfected with light-sensitive opsins such as blue-light sensitive channel-rhodopsin (ChR2) and green-light sensitive chimeric channel-rhodopsin (C1V1tt) and stimulated using blue and green OLEDs (with 455 and 520 nm peak emission spectra respectively) at a power of 1 mW/mm2 under pulsed conditions.Main resultsWe demonstrate neuromodulation and optostimulus-locked, single unit-neuronal activity in neurons expressing stimulating and inhibiting opsins (n=4 MEAs, each with 16 recordable channels). We also validated the optostimulus-locked response in a channel-rhodopsin expressing transgenic mouse model, where at least three isolatable single neuronal cortical units respond to OLED stimulation.SignificanceThe above results indicate the feasibility of generating sufficient luminance from OLEDs to perform neuromodulation both in vitro and in vivo. This opens up the possibility of developing thin, flexible OLED films with multiple stimulation sites that can conform to the shape of the neuronal targets in the brain or the peripheral nervous system. However, stability of these OLEDs under chronic conditions still needs to be carefully assessed with appropriate packaging approaches.
Cortical thickness and functional networks modules by cortical lobes
Authors: Vuksanović Vesna 
Published: June 2019

1AbstractThis study aims to investigate topological organization of cortical thickness and functional networks by cortical lobes. First, I demonstrated modular organization of these networks by the cortical surface frontal, temporal, parietal and occipital divisions. Secondly, I mapped the overlapping edges of cortical thickness and functional networks for positive and negative correlations. Finally, I showed that overlapping positive edges map onto within-lobe cortical interactions and negative onto between-lobes interactions.
CelltrackR: an R package for fast and flexible analysis of immune cell migration data
Authors: Wortel Inge M. N. , Dannenberg Katharina , Berry Jeffrey C. , Miller Mark J. , Textor Johannes 
Published: June 2019

AbstractSummaryVisualization of cell migration via time-lapse microscopy has greatly advanced our understanding of the immune system. However, subtle differences in migration dynamics are easily obscured by biases and imaging artifacts. While several analysis methods have been suggested to address these issues, an integrated tool implementing them is currently lacking. Here, we present CelltrackR, an R package containing a diverse set of state-of-the-art analysis methods for (immune) cell tracks. CelltrackR supports the complete pipeline for track analysis by providing methods for data management, quality control, extracting and visualizing migration statistics, clustering tracks, and simulating cell migration.Availability and ImplementationCelltrackR is an open-source package released under the GPL-2 license, and is freely available on GitHub at https://github.com/ingewortel/celltrackR.Contactmmiller23@wustl.edu, Johannes.Textor@radboudumc.nl
Cortisol levels after cold exposure are independent of adrenocorticotropic hormone stimulation
Authors: Shida Alissa , Ikeda Tomoya , Tani Naoto , Morioka Fumiya , Aoki Yayoi , Ikeda Kei , Watanabe Miho , Ishikawa Takaki 
Published: June 2019

AbstractWe previously showed that postmortem serum levels of adrenocorticotropic hormone (ACTH) were significantly higher in cases of hypothermia (cold exposure) than other causes of death. This study examined how the human hypothalamic-pituitary-adrenal axis, and specifically cortisol, responds to hypothermia.Human samplesAutopsies on 205 subjects (147 men and 58 women; age 15-98 years, median 60 years) were performed within 3 days of death. Cause of death was classified as either hypothermia (cold exposure,n=14) or non-cold exposure (controls;n=191). Cortisol levels were determined in blood samples obtained from the left and right cardiac chambers and common iliac veins using a chemiluminescent enzyme immunoassay. Adrenal gland tissue samples were stained for cortisol using a rabbit anti-human polyclonal antibi.Cell cultureAtT20, a mouse ACTH secretory cell line, and Y-1, a corticosterone secretory cell line derived from a mouse adrenal tumor, were analyzed in mono-and co-culture, and times courses of ACTH (in AtT20) and corticosterone (in Y-1) secretion were assessed after low temperature exposure mimicking hypothermia and compared with data for samples collected postmortem for other causes of death. However, no correlation between ACTH concentration and cortisol levels was observed in hypothermia cases. Immunohistologic analyses of samples from hypothermia cases showed that cortisol staining was localized primarily to the nucleus rather than the cytoplasm of cells in the zona fasciculata of the adrenal gland. During both mono-culture and co-culture, AtT20 cells secreted high levels of ACTH after 10-15 minutes of cold exposure, whereas corticosterone secretion by Y-1 cells increased slowly during the first 15-20 minutes of cold exposure. Similar to autopsy results, no correlation was detected between ACTH levels and corticosterone secretion, either in mono-culture or co-culture experiments. These results suggested that ACTH-independent cortisol secretion may function as a stress response during cold exposure.