bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Relative Change in Temperature and Atmospheric Pressure on Acute Aortic Syndrome Occurrence in France
Authors: Guimbretière Guillaume , Nusinovici Simon , Monnot Antoine , Sobocinski Jonathan , Sénage Thomas , Delsart Pascal , Gourraud Pierre-Antoine , Maurel Blandine 
Published: January 2020

AbstractAcute aortic syndromes (AAS) have been related to significant circadian and seasonal conditions. We used time series analyses to study the impact of meteorological variations on AAS occurrence. We retrospectively assessed 140 patients presenting with AAS over a 6-year period in a French university hospital. Average daily temperature (T) and atmospheric pressure (AP) at the location of the event were collected within the previous 10 days, and their association with AAS investigated with generalized additive models. A decrease in temperature of more than 5 °C within the previous seven days was significantly associated with an increased risk of AAS occurrence (OR equal to 1.86 [1.06; 3.44]). Subgroup analysis revealed that the risk was only significant among normotensive individuals (n = 41) free from blood pressure lowering medication (OR equal to 2.3 [1.05; 5.37]), but not among hypertensive individuals under blood pressure lowering medication despite a larger patient number (n = 99). Similarly, only among the subgroup of normotensive individuals a decrease of AP between 2 and 4 kPa within the previous 3 days was associated with an increased risk of AAS (OR equal to 2.93 [1.1; 8.15]) and an increased between 2 and 4 kPa was associated with a decreased risk (OR equal to 0.59 [0.36; 1.00]). Variations of meteorological conditions (temperature and AP) within the previous week seem to have effects on triggering AAS especially among the population free from blood pressure lowering medication.
Basidioradulum mayi and B. tasmanicum spp. nov. (Hymenochaetales, Basidiomycota) from both sides of Bass Strait, Australia
Authors: Wang Xue-Wei , Jiang Ji-Hang , Zhou Li-Wei 
Published: January 2020

AbstractBasidioradulum was morphologically considered to be a synonym of Xylodon. Here, its independence within Hymenochaetales is confirmed from a phylogenetic perspective. Basidioradulum radula, the generic type, is widely distributed in Northern Hemisphere. Two Southern Hemisphere species close to B. radula are newly described as B. mayi and B. tasmanicum, respectively, from Victoria and Tasmania, Australia. Basidioradulum mayi differs from B. radula by lack of cystidia. Moreover, the hymenial surface of B. radula is normally much more strongly hydnoid than that of B. mayi. Basidioradulum tasmanicum is distinct from B. radula and B. mayi by having capitate cystidia, ellipsoid to subglobose basidiospores, and crystal-covered hyphae. Although morphologically distinct, the two new species isolated by Bass Strait have an almost identical ITS region, and could not be differentiated by nLSU- and ITS-based phylogenetic analyses. This case reminds us that basing phylogeny simply on the ITS as a barcode region may underestimate fungal species diversity.
The effect of NAMPT deletion in projection neurons on the function and structure of neuromuscular junction (NMJ) in mice
Authors: Lundt Samuel , Zhang Nannan , Wang Xiaowan , Polo-Parada Luis , Ding Shinghua 
Published: January 2020

AbstractNicotinamide adenine dinucleotide (NAD+) plays a critical role in energy metabolism and bioenergetic homeostasis. Most NAD+ in mammalian cells is synthesized via the NAD+ salvage pathway, where nicotinamide phosphoribosyltransferase (NAMPT) is the rate-limiting enzyme, converting nicotinamide into nicotinamide mononucleotide (NMN). Using a Thy1-Nampt−/− projection neuron conditional knockout (cKO) mouse, we studied the impact of NAMPT on synaptic vesicle cycling in the neuromuscular junction (NMJ), end-plate structure of NMJs and muscle contractility of semitendinosus muscles. Loss of NAMPT impaired synaptic vesicle endocytosis/exocytosis in the NMJs. The cKO mice also had motor endplates with significantly reduced area and thickness. When the cKO mice were treated with NMN, vesicle endocytosis/exocytosis was improved and endplate morphology was restored. Electrical stimulation induced muscle contraction was significantly impacted in the cKO mice in a frequency dependent manner. The cKO mice were unresponsive to high frequency stimulation (100 Hz), while the NMN-treated cKO mice responded similarly to the control mice. Transmission electron microscopy (TEM) revealed sarcomere misalignment and changes to mitochondrial morphology in the cKO mice, with NMN treatment restoring sarcomere alignment but not mitochondrial morphology. This study demonstrates that neuronal NAMPT is important for pre-/post-synaptic NMJ function, and maintaining skeletal muscular function and structure.
Facile and reversible digestion and regeneration of zirconium-based metal-organic frameworks
Authors: Chu Jun , Ke Fu-Sheng , Wang Yunxiao , Feng Xiangming , Chen Weihua , Ai Xinping , Yang Hanxi , Cao Yuliang 
Published: January 2020

AbstractThe digestion/regeneration of metal-organic frameworks (MOFs) has important applications for catalysis, drug delivery, environmental decontamination, and energy storage, among other applications. However, research in this direction is limited and very challenging. Here, we develop a facile method to digest and regenerate a series of zirconium-based metal-organic frameworks (Zr-MOFs) by bicarbonate or carbonate salts. As an example, UiO-66 demonstrates well the mechanism of reversible digestion/regeneration processes. By analyzing the digested zirconium species via X-ray diffraction, Fourier transform infrared spectroscopy and Raman scattering spectroscopy, a digestion mechanism based on the formation of dissoluble complexes [Zr2(OH)2(CO3)4]2− is proposed. Impressively, ultrafine Pd nanoparticles can be extracted from Pd@PCN-224 via this strategy. This work, thus, may provide new insight for the development of renewable MOFs and their practical applications.
Development of a 1,3a,6a-triazapentalene derivative as a compact and thiol-specific fluorescent labeling reagent
Authors: Nakayama Atsushi , Otani Akira , Inokuma Tsubasa , Tsuji Daisuke , Mukaiyama Haruka , Nakayama Akira , Itoh Kohji , Otaka Akira , Tanino Keiji , Namba Kosuke 
Published: January 2020

AbstractFor the fluorescence imaging of biologically active small compounds, the development of compact fluorophores that do not perturb bioactivity is required. Here we report a compact derivative of fluorescent 1,3a,6a-triazapentalenes, 2-isobutenylcarbonyl-1,3a,6a-triazapentalene (TAP-VK1), as a fluorescent labeling reagent. The reaction of TAP-VK1 with various aliphatic thiols proceeds smoothly to afford the corresponding 1,4-adducts in high yields, and nucleophiles other than thiols do not react. After the addition of thiol groups in dichloromethane, the emission maximum of TAP-VK1 shifts to a shorter wavelength and the fluorescence intensity is substantially increased. The utility of TAP-VK1 as a compact fluorescent labeling reagent is clearly demonstrated by the labeling of Captopril, which is a small molecular drug for hypertension. The successful imaging of Captopril, one of the most compact drugs, in this study demonstrates the usefulness of compact fluorophores for mechanistic studies.
Surgical Treatment of Talar Neck and Body Fractures: Mid-Term Results of 24 Cases
Authors: von Winning Dominik , Adolf Daniela , Schirrmeister Wiebke , Piatek Stefan 
Published: January 2020

AbstractBackground Talar neck and body fractures are rare. Major posttraumatic complications with a potential reduction in the quality of life are arthrosis and necrosis due to the specific vascular supply. The aim of the study was to evaluate mid-term results of surgery for talar fractures of neck and body. Parameters that potentially affected/influenced treatment outcomes were analysed exploratively.Methods 24 patients with 24 talar neck and body fractures (Marti type II n = 9, type III n = 12, type IV n = 3) were retrospectively examined for radiological and clinical functional outcomes. The independent parameters evaluated included age (< 40, ≥ 40 years), sex (male, female), general overall extent of injury (polytrauma/multiple injuries/multiple fractures of the extremities, additional injuries to the same foot, isolated talus fracture), soft tissue damage (open, closed), surgical latency (< 6, ≥ 6 h), fracture classification/displacement (undisplaced [= Marti II], displaced [= Marti III, IV]) and fracture type (talar body, neck fracture). The potential influencing parameters were analysed by univariate analyses.Results With an average follow-up of 8.7 years (1,25 – 16 years) the AOFAS score was 71.4 ± 22.9 points, the Foot Function Index score 35.9 ± 28.3 points; the physical and mental component summary scores of the Short Form 36, version 2, was 43.8 ± 10.9 and 47.4 ± 13.6 points (mean ± standard deviation), respectively. Thus, the patient reported physical health of the patients was slightly reduced compared to the German population, while the mental health remained largely unaffected. Two patients developed partial avascular necrosis (8%), 10 patients developed osteoarthritis (42%). Of the independent parameters, only the general overall extent of injury showed a significant influence on osteoarthritis (p = 0.002). In the evaluation of undisplaced (n = 9) and displaced (n = 15) fractures, surgical treatment after more than 6 hours did not result in a worse outcome.Conclusion The clinical outcome of internal fixation of talar neck and body fractures can be classified as good. In the study group, there was no correlation between the occurrence of arthrosis and the Marti fracture classification.
Gedeihstörung, Hyponatriämie, Hyperkaliämie – Differenzialdiagnostische Überlegungen einer seltenen genetischen Erkrankung
Authors: Tropschuh Andrea , de Potzolli Brigitte , Seeliger Stephan 
Published: January 2020

ZusammenfassungDer Pseudohypoaldosteronismus Typ I ist eine seltene genetische Erkrankung einer Mineralokortikoidresistenz, die sich typischerweise im Neugeborenenalter manifestiert. Die Patienten fallen durch eine Gedeihstörung, Dehydratation, Polyurie, Erbrechen, Hyperkaliämie, Hyponatriämie sowie gegebenenfalls einer metabolischen Azidose bei erhöhten Aldosteron – und Plasmareninwerten auf. Das Krankheitsbild wird in eine systemische und renale Form unterteilt. Bei der renalen Form besteht nach alleiniger Kochsalzsubstitution ab dem Kleinkindesalter eine Symptomfreiheit. Bei der systemischen Form können neben den Nieren auch Kolon, Lungen, Speichel- und Schweißdrüsen betroffen sein. Dabei zeigt sich eine Symptompersistenz bis in das Erwachsenenalter.
Work and Training Conditions of German Residents in Radiology – Results from a Nationwide Survey Conducted by the Young Radiology Forum in the German Roentgen Society
Authors: Oechtering Thekla H. , Panagiotopoulos Nikolaos , Völker Martin , Lohwasser Stefan , Ellmann Stephan , Molwitz Isabel , Storz Corinna , Winther Hinrich , Eisenblaetter Michel , Antoch Gerald , Schönberg Stefan O. , Barkhausen Jörg , Anton Frank , Neumann Stefan , Layer Günter , Doerfler Arnd , Koerber Friederike , Wessling Johannes , Wucherer Michael , Raspe Matthias 
Published: January 2020

Purpose Good training is the basis for high job satisfaction and high-quality patient care in radiology. The aim of this survey was to record the current state of working conditions for residents in radiology training in Germany and to focus on the aspects of training and psychosocial workload. The description of the actual state should help to identify possible problem areas and to develop improvement approaches.
Materials and Methods At the beginning of 2018, we sent an electronic questionnaire to the German Roentgen Society (DRG), the German Association of Chairmen in Academic Radiology (KLR), the Chief Physician Forum of the DRG (CAFRAD) and the Forum of Registered Radiologists (FUNRAD) with the request to forward it to radiology residents. With 63 questions, the questionnaire covered seven essential areas of medical working and training conditions. In order to ensure interdisciplinary comparability, most questions were identical to previous surveys among residents of other disciplines.
Results 643 residents started the survey. 501 (78 %) questionnaires were fully processed and included in the final analysis. 65 % of respondents were satisfied with their current job situation. At the same time, shortcomings, especially with regard to the reconciliation of family and work as well as scientific and clinical work, became clear. Only 36 % of participants with children were satisfied with the compatibility of family and work at their workplace. Only 31 % of the researchers were satisfied with their research conditions. In addition, residents experienced a high psychosocial workload.
Conclusion Job satisfaction is high among radiology residents in direct comparison to other disciplines. However, based on this survey, adjustments to working conditions and training in radiology seem necessary to maintain the health of the physicians concerned, to encourage motivation for scientific work and to enhance development opportunities, especially for women, through a better compatibility of work and family life. The present survey identifies strategies and leadership tools that can help to achieve this.
Key Points: Residents in radiology training ...
Citation Format
Home Self-Administration of Biologics – A German Survey among Omalizumab-Treated Patients with Severe Asthma and their Treating Physicians
Authors: Timmermann H. , Mailänder C. 
Published: January 2020

AbstractIn the EU, five biologics have been approved as add-on therapy for patients with severe asthma. Until recently, none of the biologics was approved for home use and had to be administered under medical supervision, a time-consuming schedule for both patients and physicians, accompanied by greater expenditure. However, over the last year, four out of the five biologics have been granted approval for patient self-administration at home. The objective of this multiple-choice survey was to understand how patients with severe asthma treated with omalizumab and their treating physicians view the potential home use of biologics exemplified by omalizumab. The questionnaires were answered by 120 physicians and 432 patients (response rate: 51.7 % and 20.6 %, respectively). Overall, 44.7 % of patients were in favour of self-administration at home while 30.6 % opposed this method of administration and 23.8 % of patients were neutral. Especially teenagers and young adults had a positive attitude towards self-administration. 76.7 % of the questioned physicians were in favour of home use for certain patients. Time saving was the main advantage for self-administration mentioned by patients (53.2 %) as well as by physicians (72.5 %). The main concern for patients was ‘making a mistake while injecting’ (43.8 %) while ‘forgetting to inject omalizumab’ (73.3 %) was the main concern for physicians. 44.4 % of patients expressed a wish for individual training and 70.8 % of physicians agreed with this statement. The latter group also considered a starter kit including several information materials (54.2 %) as well as an electronic reminder system (50.8 %) as useful. In conclusion, self-administration of biologics has the potential to be timesaving for both patients and physicians.
Synthesis of N-Heterocycles via Transition-Metal-Catalyzed Tandem Addition/Cyclization of a Nitrile
Authors: Hsieh Jen-Chieh , Su Haw-Lih 
Published: January 2020

The diverse methodologies to synthesize N-heterocycles through transition-metal-catalyzed cascade addition/cyclization of a nitrile are discussed in this review. Aspects relating to three types of transition-metal-catalyzed addition of a nitrile with subsequent cyclization include (1) a transition-metal acting as a Lewis acid to accelerate the nucleophilic addition of a nitrile, (2) the late-transition-metal-catalyzed 1,2-insertion of a nitrile, and (3) an in situ generated radical by transition-metal catalysis to implement a radical addition/cyclization tandem reaction. Applications for the synthesis of natural alkaloids, their derivatives, and some bioactive compounds are also summarized herein.1	Introduction2	Nucleophilic Addition of a Nitrile Accelerated by a Lewis Acid2.1	Late-Transition-Metal Catalysis2.2	Early-Transition-Metal Catalysis2.3	Lanthanide-Metal Catalysis2.4	Cyclization from N-Arylnitriliums3	Transition-Metal-Catalyzed Insertion of a Nitrile4	Transition-Metal-Catalyzed Radical Addition of a Nitrile5	Conclusions
Double Aortic Arch Mimics the Clinical Characteristics of Severe Reactive Airway Disease in a Pediatric Patient
Authors: Yesilbas Osman , Kus Hazar Dogus , Şik Güntülü , Citak Agop , Temur Bahar , Yozgat Can Yilmaz , Temur Hafize Otcu , Cakir Erkan , Yozgat Yilmaz 
Published: January 2020

AbstractReactive airway disease is a prevalent condition that can be detected in the early infancy period. The condition might also deteriorate into asthma in some cases. If infants do not respond to the treatment of persistent wheeze and coughing, other rare causes should be investigated. The complete form of vascular ring is an extremely uncommon congenital cardiovascular abnormality. Double aortic arch constitutes the most significant portion of the complete vascular ring anomalies. Clinical manifestations of the anomaly are mainly respiratory due to the tracheal compression and mimicking the conditions of asthma. There have not been many reports about the clinical presentations of double aortic arch being remarkably similar to the same clinical manifestations of asthma in the literature. As far as we can be sure, there have not been any reported cases about severe reactive airway disease that caused a patient to have a life-threatening condition in the pediatric intensive care unit. Herein, we present a 5-month-old girl who had double aortic arch. Her anatomical aberration was diagnosed by three-dimensional computed tomography angiography of thorax, and the anomaly mimicked the clinical characteristics of life-threatening severe reactive airway disease.
Carpal Extension Angles in Agility Dogs Exiting the A-Frame and Hurdle Jumps
Authors: Castilla Andrea , Knotek Brooke , Vitt Molly , Gordon-Evans Wanda 
Published: January 2020

Abstract
Objectives The aim of this study was to determine the mean carpal extension angles in dogs participating in the A-frame and hurdle jumps, and to determine if the use of a carpal brace changed the carpal extension angle.
Study Design Data from 13 healthy agility dogs were included. Approximately 1 cm square adhesive tape markers placed on both forelimbs served as anatomic landmarks for carpal angle measurement. Each dog was filmed landing after jumping over a bar and exiting the A-frame. Five valid trials on each obstacle were collected. The carpal braces were then applied and the dogs were allowed to navigate obstacles for 10 minutes. Once acclimated to the brace, an additional five valid trials were collected. Carpal extension was measured from the videos collected using a video analysis software.
Results Without the carpal brace, the mean carpal extension angles ± standard deviations in dogs participating in the A-frame and hurdle jumps were 124.7 ± 11.9 degrees and 123.3 ± 6.3 degrees, respectively. With the carpal brace, the mean carpal extension angles ± standard deviations were 129.1 ± 11.4 degrees and 125.3 ± 7.3 for the A-frame and hurdle jumps, respectively. There was no clinically significant reduction as defined (>10 degrees) in carpal extension measurements with and without the brace.
Clinical Significance The brace used in this study did not show a clinically significant reduction in carpal extension. However, multiple avenues for future research have been identified using these data.
Moyamoya Syndrome in a Child with β-Thalassemia Major
Authors: Roy Soumya 
Published: January 2020

AbstractA 9-year-old girl patient presented with left-sided weakness and joint contractures developing over a period of 18 months. She was known to be suffering from β-thalassemia major and was on regular blood transfusions. Eighteen months ago, she had suffered from an episode of ischemic cerebrovascular accident affecting the right side of her brain. Magnetic resonance angiogram revealed vaso-occlusive disease affecting mainly the anterior cerebral circulation, resembling Moyamoya disease. She was advised to carry out regular physiotherapy but her parents discontinued it, which resulted in the gradual development of joint contractures and muscle wasting.
Different Patellar Indices and Their Role in Decision-Making: An MRI-Based Study
Authors: Raju Sivashanmugam , Chinnakkannu Karthikeyan , Balakumar Balasubramanian , Sundareyan Ramanivas , Kaliappan Saravanakumar P. , Puttaswamy Mohan K. 
Published: January 2020

AbstractMagnetic resonance imaging (MRI) of knee has become the integral part of knee evaluation, hence any MRI based study adds more value if it helps in the decision-making process, especially for surgery in treating patellofemoral pain. We tried to determine normal patellar indices using knee MR images and the correlation between them and also compared the results with different ethnic population. We analyzed the prospectively collected MR images of 117 knees/patients, and Insall–Salvati (IS) index, modified IS index, patellotrochlear (PT) index, and patellophyseal (PP) index were calculated. Two standard deviations from the mean were used to define the normal and abnormal patellar position. Cohen's kappa values were used to assess the agreement between the indices and the correlation between them was analyzed using Pearson's correlation. The mean values for IS index, modified IS index, PT index, and PP index were 1.00, 1.53, 0.40, and 0.58, respectively. There was very good agreement between PT index and PP index. There was weak correlation between all the indices except the one between PT and PP indices which had a strong negative correlation. Based on commonly used methodology, there were 4% of asymptomatic patients who were outside the standardized cut-off values and different indices classified different knees as abnormal. This indicates patellar position should be one among the many other factors, not as a sole factor when making a surgical decision in patellofemoral pain. We also noted that the indices compared fairly with other populations. Further research is needed to determine the clinical applicability of these indices.