bluuebunny/crossref_metadata_2025_split huggingface dataset:
Normative data on the foveal avascular zone in a young healthy Irish population using optical coherence tomography angiography
Authors: O'Shea Susan M. , O’Dwyer Veronica M. , Scanlon Grainne 
Published: January 2022

Purpose To establish normative data on the size, shape and vascular profile of the foveal avascular zone (FAZ) in a young, healthy, Irish population, using the Cirrus 5000 HD-OCT. Certain diseases may alter FAZ appearance. Normative databases provide normal baseline values for comparison, thus improving diagnostic ability. Methods One hundred and fifty-four subjects aged 18–35 years old were recruited. Superficial FAZ area, diameter, circularity, ganglion cell layer, central macular thickness (CMT), vascular perfusion and density were measured using the Cirrus 5000. Axial length was measured with the IOL Master and blood pressure was measured using the Omron sphygmomanometer. Results Mean FAZ area was 0.22 ± 0.07 mm2, mean CMT was 263.08 ± 18.73μm. Both were larger in females than males (p = 0.022, p = 0.000). Mean vessel density and perfusion central were 14.11 ± 2.77 mm/mm2 and 24.70 ± 4.96% respectively. Both were lower in females (p = 0.010, p = 0.019). Vessel density and perfusion inner correlated positively with minimum ganglion cell layer plus inner plexiform layer (GCL + IPL) thickness (p = 0.001, p = 0.019). CMT correlated positively with vessel density and perfusion central (p = 0.000 for both) and negatively with FAZ area (p = 0.000). Conclusions This study provides normative data for FAZ appearance and vascularity for the first time in a young, healthy, Irish population, using the Cirrus 5000 HD-OCT. Establishing machine and population specific normative data, particularly in relation to vessel density and perfusion is paramount to the early identification of ocular disease using Optical Coherence Tomography Angiography.
Frozen overnight: Acute orbital apex syndrome caused by aspergillosis
Authors: Pellegrini Francesco , Mandarà Erika , Stafa Altin , Meli Salvatore 
Published: January 2022

Purpose to describe a rare case of orbital apex syndrome caused by aspergillosis with acute presentation. Case description retrospective case report of a 70-year-old man who developed unilateral ophthalmoplegia overnight. He was initially given the diagnosis of suspect Tolosa-Hunt syndrome, but biopsy of the involved tissue showed aspergillosis. Conclusion orbital apex syndrome caused by fungal disease is a life-threatening condition that should be promptly diagnosed and treated. It may present acutely and should not be misdiagnosed as Tolosa-Hunt syndrome. To our knowledge this is the first such case report in the English ophthalmic language Literature.
High incidence of large bore temporary hemodialysis catheter malfunction in patients with COVID-19 related kidney injury
Authors: Shanmugasundaram Srinidhi , Kubiak Aleksander , Dar Aleena , Shrinet Abhishek , Chauhan Nirav , Haque Humza , Kumar Abhishek , Shukla Pratik A 
Published: January 2022

Purpose: To evaluate the incidence of large bore hemodialysis catheter malfunction in the setting of COVID-19. Materials and methods: A retrospective review was performed of all patients who underwent placement of a temporary hemodialysis catheter after developing kidney injury after COVID-19 infection at our institution. Data collected included demographic information, procedure related information, and incidence of replacement due to lumen thrombosis. Groups were compared using students t-test for continuous variables and Fisher’s exact test for nominal variables. Results: Sixty-four patients (43M, mean age 63.2 ± 13.3) underwent placement of temporary hemodialysis catheter placement for kidney injury related to COVID 19 infection. Thirty-one (48.4%) of catheters were placed via an internal jugular vein (IJV) access and 33 (52.6%) of catheters were placed via a common femoral vein (CFV) access. Overall, 15 (23.4%) catheters required replacement due to catheter dysfunction. There were no differences in demographics in patients who required replacement to those who did not ( p > 0.05). Of the replacements, 5/31 (16%) were placed via an IJV access and 10/33 (30.3%) were placed via a CFV access ( p = 0.18). The average time to malfunction/replacement was 7.8 ± 4.8 days for catheters placed via an IJ access versus 3.4 ± 3.3 days for catheters placed via a CFV access ( p = 0.055). Conclusion: A high incidence of temporary dialysis catheter lumen dysfunction was present in patients with COVID-19 infection. Catheters placed via a femoral vein access had more frequent dysfunction with shorter indwelling time.
Asymmetry in internal oblique muscle thickness: Not the key to a cricket fast bowler's performance
Authors: Olivier Benita , Olivier Franso-Mari , Mnguni Nkazimulo , Obiora Oluchukwu Loveth 
Published: January 2022

Purpose Previous studies found that trunk muscle asymmetry may play a role in preventing injury in cricket fast bowlers, while the association with bowling performance has not been investigated. This study aims to describe the side-to-side differences in trunk muscle thickness and determine the association between bowling performance and these side-to-side differences in trunk muscle thickness in adolescent fast bowlers. Methods In this observational cross-sectional study, bowling performance, namely ball release speed and bowling accuracy, was recorded in adolescent fast bowlers. Ultrasound imaging measured external oblique, internal oblique, transversus abdominis and lumbar multifidus muscle thickness. Results Fast bowlers (n = 46) with a mean age of 15.9 (±1.2) years participated. On the non-dominant side, the external oblique and internal oblique at rest were thicker than on the dominant side (external oblique: p = 0.011, effect size = 0.27; internal oblique: p < 0.0001, effect size = 0.40), while the transversus abdominus ( p = 0.72, effect size = 0.19) and lumbar multifidus ( p = 0.668, effect size = 0.04) were symmetrical. Weak correlations existed between bowling performance and the side-to-side differences in the thickness in all muscles, except for two moderate correlations: 1. The smaller the side-to-side difference in absolute thickness of the external oblique when contracted, the faster the ball release speed (Spearman's (ρ) = −0.455, p = 0.002). 2. Also, a smaller side-to-side difference in external oblique contraction ratio (Spearman's (ρ) = −0.495, p = 0.0001) was associated with faster ball release speed. Conclusions No relationship between bowling performance and side-to-side differences in internal oblique muscle thickness could be established, while more symmetrical external oblique muscles may be linked to faster ball release speeds.
Improving teamwork and communication in the operating room by introducing the theatre cap challenge
Authors: van Dalen Anne Sophie HM , Swinkels Jan A , Coolen Stan , Hackett Robert , Schijven Marlies P 
Published: January 2022

Objective One of the steps of the Surgical Safety Checklist is for the team members to introduce themselves. The objective of this study was to implement a tool to help remember and use each other’s names and roles in the operating theatre. Methods This study was part of a pilot study in which a video and medical data recorder was implemented in one operating theatre and used as a tool for postoperative multidisciplinary debriefings. During these debriefings, name recall was evaluated. Following the implementation of the medical data recorder, this study was started by introducing the theatre cap challenge, meaning the use of name (including role) stickers on the surgical cap in the operating theatre. Findings In total, 41% (n = 40 out of 98) of the operating theatre members were able to recall all the names of their team at the team briefings. On average 44.8% (n = 103) was wearing the name sticker. Conclusions The time-out stage of the Surgical Safety Checklist might be inadequate for correctly remembering and using your operating theatre team members’ names. For this, the theatre cap challenge may help.
Evaluating serum level of thymidylate synthase in post burn keloid patients before and after intralesional injection of 5-fluorouracil
Authors: Ezzat Mohamad Noha , Abd El Raheem Talal Ahmed , Mahmoud Rania Hosny , Osama Hamed Nehal 
Published: January 2022

Background Keloids are fibrous lesions formed at the site of trauma due to types I and III collagen irregular production. The presence of thymidylate synthase (TS) is a must for DNA synthesis and repairs causing cell death. 5-fluorouracil (5-FU) is a fluorinated pyrimidine analogue acting as an anti-metabolic agent that inhibits thymidylate synthase and interferes with ribo-nucleic acid (RNA) synthesis. Objectives we aimed to evaluate the level of thymidylate synthase in post burn keloid patients before and after intralesional injection of 5-fluorouracil. Methods The study included 20 keloid patients and 20 healthy subjects as a control. Serum TS was estimated using commercially available enzyme-linked immunosorbent assay (ELISA) kits before and after treatment with 5-fluorouracil. Results There was a statistically significant difference in TS levels before and after 5-FU treatment (p < 0.05). Also, results have shown that 5-FU injection has good satisfactory results in treatment of keloid causing reduction in scar volume and symptoms improvement (90% of the patients improved). On the other hand, there was no statistically significant difference in TS levels and the outcomes of the treatment. Conclusion Our findings suggest that intralesional 5-FU injection in keloid has very satisfactory results. However, thymidylate synthase enzyme has a minimal role in evaluating the treatment of keloid, so further studies are required to elaborate the relation between this enzyme and keloid scars.
Associations between Dentition Status and Nutritional Status in Community-Dwelling Older Adults
Authors: Honeywell S. , Samavat H. , Touger-Decker R. , Parrott J.S. , Hoskin E. , Zelig R. 
Published: January 2022

Background/Objective: Older adults are at higher risk of malnutrition. The aim of this study was to explore associations between nutritional status and dentition status among older adults seeking care in a dental clinic. Methods: This was a cross-sectional study of data from older adults (65–89 y) who received care at a northeastern US urban dental school clinic between June 2015 and June 2020 (N = 305). Clinical and demographic data were obtained from the electronic health record; nutritional status was determined using the Self–Mini Nutritional Assessment (Self-MNA), and odontograms and digital radiography were used to determine dental data. Adjusted multivariable models were used to explore associations between variables. Results: The sample was 53.8% female with a median age of 72.0 y. The median Self-MNA score was 13, reflective of normal nutritional status; 29.5% were at risk of or had malnutrition. Median numbers of teeth and posterior and anterior occluding pairs of teeth (POP, AOP) were 18.0, 2.0, and 5.0, respectively. Those with normal nutritional status had significantly more teeth, POPs, and AOPs than those at risk of or with malnutrition (P = 0.015, P = 0.015, and P = 0.039, respectively). Every additional unit increase in the number of natural or restored teeth or POP was associated with significantly lower odds of being at risk of or with malnutrition (3% and 13%, respectively). Having functional dentition was associated with 46% lower odds of being at risk of or with malnutrition. Conclusion: This study demonstrated that older adults who had more teeth, better occlusion, and functional dentition were more likely to be of normal nutritional status than those who had less teeth, had poorer occlusion, and lacked functional dentition. Further research with larger, more diverse samples and varied measures of dentition are needed to better understand the associations between nutritional status and dentition status. Knowledge Transfer Statement: The findings from this study suggest that older adults with fewer teeth and therefore less efficient occlusion are at higher risk for malnutrition than those with more teeth and better occlusion. Health care professionals should include screening for dentition and malnutrition as part of their routine practice to identify patients who may have tooth loss and be at risk of malnutrition and refer them accordingly for interventions to optimize oral health and nutritional status.
Technical Standards from Newly Established Medical Schools: A Review of Disability Inclusive Practices
Authors: Stauffer Catherine , Case Ben , Moreland Christopher J. , Meeks Lisa M. 
Published: January 2022

Introduction Technical standards document US medical school's nonacademic criteria necessary for admission, persistence, and graduation and communicate the school's commitment to disability inclusion and accommodation but are considered one of the largest barriers for students with disabilities. Calls for more inclusive technical standards have increased in recent years, yet the impact of this work on changing technical standards has not been measured. The establishment of 15 new US MD- and DO-granting medical schools between 2017 to 2020 offered a unique opportunity to evaluate differences in the inclusive nature of newly developed technical standards. Method We conducted a document analysis of 15 newly formed medical schools’ technical standards to determine the availability and inclusive nature of the standards as they pertain to students with sensory and mobility disabilities. Technical standards were coded for: ease of obtaining technical standards, the school's stated willingness to provide reasonable accommodations, the origin of responsibility for accommodation request and implementation, and the school's openness to intermediaries or auxiliary aids. Results Of the 15 schools, 73% of the technical standards were not easy to locate online. Few (13%) included language that support disability accommodations. Most (73%) used language that was coded as ‘restrictive’ for students with physical or sensory disabilities. Coding of the newly accredited US MD and DO medical schools suggests that newly created technical standards are more restrictive than those in previous studies. Conclusions Efforts to create more inclusive technical standards have not yet been realized. Newly formed US MD- and DO-granting medical schools may perpetuate historically restrictive technical standards that serve as barriers to applicants with disabilities. Future research should evaluate the role of medical school accrediting bodies to go beyond simply requiring technical standards to ensuring that the standards are readily available and appropriately convey the availability of reasonable accommodations for students with disabilities.
Upregulation of cAMP prevents antibody-mediated thrombus formation in COVID-19
Authors: Zlamal Jan , Althaus Karina , Jaffal Hisham , Häberle Helene , Pelzl Lisann , Singh Anurag , Witzemann Andreas , Weich Karoline , Bitzer Michael , Malek Nisar , Göpel Siri , Bösmüller Hans , Gawaz Meinrad , Mirakaj Valbona , Rosenberger Peter , Bakchoul Tamam 
Published: January 2022

Abstract
Thromboembolic events are frequently reported in patients infected with the SARS-CoV-2 virus. The exact mechanisms of COVID-19-associated hypercoagulopathy, however, remain elusive. Recently, we observed that platelets (PLTs) from patients with severe COVID-19 infection express high levels of procoagulant markers, which were found to be associated with increased risk for thrombosis. In the current study, we investigated the time course as well as the mechanisms leading to procoagulant PLTs in COVID-19. Our study demonstrates the presence of PLT-reactive IgG antibodies that induce marked changes in PLTs in terms of increased inner-mitochondrial transmembrane potential (Δψ) depolarization, phosphatidylserine (PS) externalization, and P-selectin expression. The IgG-induced procoagulant PLTs and increased thrombus formation were mediated by ligation of PLT Fc-γ RIIA (FcγRIIA). In addition, contents of calcium and cyclic-adenosine-monophosphate (cAMP) in PLTs were identified to play a central role in antibody-induced procoagulant PLT formation. Most importantly, antibody-induced procoagulant events, as well as increased thrombus formation in severe COVID-19, were inhibited by Iloprost, a clinically approved therapeutic agent that increases the intracellular cAMP levels in PLTs. Our data indicate that upregulation of cAMP could be a potential therapeutic target to prevent antibody-mediated coagulopathy in COVID-19 disease.
GATA2 deficiency elevates interferon regulatory factor-8 to subvert a progenitor cell differentiation program
Authors: Johnson Kirby D. , Soukup Alexandra A. , Bresnick Emery H. 
Published: January 2022

Abstract
Cell type-specific transcription factors control stem and progenitor cell transitions by establishing networks containing hundreds of genes and proteins. Network complexity renders it challenging to discover essential versus modulatory or redundant components. This scenario is exemplified by GATA2 regulation of hematopoiesis during embryogenesis. Loss of a far upstream Gata2 enhancer (−77) disrupts the GATA2-dependent transcriptome governing hematopoietic progenitor cell differentiation. The aberrant transcriptome includes the transcription factor interferon regulatory factor 8 (IRF8) and a host of innate immune regulators. Mutant progenitors lose the capacity to balance production of diverse hematopoietic progeny. To elucidate mechanisms, we asked if IRF8 is essential, contributory, or not required. Reducing Irf8, in the context of the −77 mutant allele, reversed granulocytic deficiencies and the excessive accumulation of dendritic cell committed progenitors. Despite many dysregulated components that control vital transcriptional, signaling, and immune processes, the aberrant elevation of a single transcription factor deconstructed the differentiation program.
Eculizumab precision-dosing algorithm for thrombotic microangiopathy in children and young adults undergoing HSCT
Authors: Mizuno Kana , Dandoy Christopher E. , Teusink-Cross Ashley , Davies Stella M. , Vinks Alexander A. , Jodele Sonata 
Published: January 2022

Abstract
Transplant-associated thrombotic microangiopathy (TA-TMA) is a fatal posttransplant complication of hematopoietic stem cell transplantation. We recently reported that survival for TA-TMA has been improved by early intervention with eculizumab, a complement C5 inhibitor, guided by pharmacokinetic/pharmacodynamic (PK/PD) model-informed precision dosing. However, patients with gastrointestinal bleeding showed poor survival, even when treated with more frequent doses. Our objective was to develop separate models in bleeding and nonbleeding patients with TA-TMA and to propose precision dosing algorithms. Eculizumab PK/PD was analyzed in 19 bleeding and 38 nonbleeding patients (0.5-29.9 years of age). A complement activation biomarker (sC5b-9) and body weight were identified as significant determinants of eculizumab clearance regardless of bleeding. Eculizumab clearance after the first dose was higher in bleeding than in nonbleeding patients (83.8 vs 61.3 mL/h per 70 kg; P = .07). The high clearance was maintained over treatment doses in bleeding patients, whereas nonbleeding patients showed a time-dependent decrease in clearance. sC5b-9 levels were highest before the first dose and decreased over time, regardless of bleeding complications. A Monte Carlo Simulation analysis showed that the current dosing protocols recommended for atypical hemolytic uremic syndrome had &lt;15% probability of attaining the target concentration of &gt;100 μg/mL eculizumab in nonbleeding patients. We identified an intensified loading protocol to reach 80% target attainment. Our data clearly showed the need for individualized dosing for patients with significant bleeding and for ongoing dose adjustments to optimize outcomes. The developed models will be incorporated into a clinical decision guideline for precision dosing to improve outcomes in children and young adults with TA-TMA.
Photocatalytic degradation of tetracycline in aqueous systems under visible light irridiation using needle-like SnO2 nanoparticles anchored on exfoliated g-C3N4
Authors: Oluwole Adewumi Olufemi , Olatunji Olatunde Stephen 
Published: January 2022

Abstract
Background
Pharmaceuticals is one of the groups of contaminants of emerging concern that are resistant to decomposition or removal by most of the existing water and wastewater treatment procedures, hence the need to develop techniques to facilitate the removals of this group of organic contaminants from water systems. In this study, needle-like SnO2 nanoparticles was synthesised and loaded on exfoliated g-C3N4 nanosheet through a hydrothermal method, for use as sensitive visible light induce-photocatalyst for the decomposition of tetracycline in aqueous systems. The synthesised composites was characterized and analysed for the nature of the heterojunction between the SnO2 nanoparticle and g-C3N4 nanosheet using microscopic and spectroscopic techniques.

Results
The composites were of improved surface properties and enhanced visible-light absorption. The synthesised SnO2/g-C3N4 nanocomposites with various amounts of SnO2 (10–50 mg), employed in the degradation of tetracycline under visible light irradiation, were of good degradation efficiency. The degradation efficiencies of tetracycline by 1 wt.%, 2 wt.%, 3 wt.% and 5 wt.% SnO2/g-C3N4 photocatalyst were 81.54%, 90.57%, 95.90% and 92.15% as compared to g-C3N4 and SnO2 with 40.92% and 51.32% degradation efficiencies. The synergistic interaction between the needle-like SnO2 and exfoliated g-C3N4 nanosheet promoted the separation of photogenerated electron holes pairs, which enhanced their migration rate between SnO2 and g-C3N4 heterojunction, thereby facilitating the degradation of tetracycline. The ·O2− was noted to be the major reactive species in the photocatalytic of the 3 wt.% SnO2/g-C3N4 nanocomposite.

Conclusion
The fabricated SnO2 nanoparticles anchored on exfoliated g-C3N4 showed good performance for the decomposition of tetracycline in water, with possible application on other pharmaceuticals having same moiety (similar chemical structures).
Investigation of genetic relationships within three Miscanthus species using SNP markers identified with SLAF-seq
Authors: Chen Zhiyong , He Yancen , Iqbal Yasir , Shi Yanlan , Huang Hongmei , Yi Zili 
Published: January 2022

Abstract
Background
Miscanthus, which is a leading dedicated-energy grass in Europe and in parts of Asia, is expected to play a key role in the development of the future bioeconomy. However, due to its complex genetic background, it is difficult to investigate phylogenetic relationships in this genus. Here, we investigated 50 Miscanthus germplasms: 1 female parent (M. lutarioriparius), 30 candidate male parents (M. lutarioriparius, M. sinensis, and M. sacchariflorus), and 19 offspring. We used high-throughput Specific-Locus Amplified Fragment sequencing (SLAF-seq) to identify informative single nucleotide polymorphisms (SNPs) in all germplasms.

Results
We identified 257,889 SLAF tags, of which 87,162 were polymorphic. Each tag was 264–364 bp long. The obtained 724,773 population SNPs were used to investigate genetic relationships within three species of Miscanthus. We constructed a phylogenetic tree of the 50 germplasms using the obtained SNPs and grouped them into two clades: one clade comprised of M. sinensis alone and the other one included the offspring, M. lutarioriparius, and M. sacchariflorus. Genetic cluster analysis had revealed that M. lutarioriparius germplasm C3 was the most likely male parent of the offspring.

Conclusions
As a high-throughput sequencing method, SLAF-seq can be used to identify informative SNPs in Miscanthus germplasms and to rapidly characterize genetic relationships within this genus. Our results will support the development of breeding programs with the focus on utilizing Miscanthus cultivars with elite biomass- or fiber-production potential for the developing bioeconomy.