bluuebunny/crossref_metadata_2025_split huggingface dataset:
A New Framework for Performing Cardiac Strain Analysis from Cine MRI Imaging in Mice
Authors: Hammouda K. , Khalifa F. , Abdeltawab H. , Elnakib A. , Giridharan G. A. , Zhu M. , Ng C. K. , Dassanayaka S. , Kong M. , Darwish H. E. , Mohamed T. M. A. , Jones S. P. , El-Baz A. 
Published: May 2020

AbstractCardiac magnetic resonance (MR) imaging is one of the most rigorous form of imaging to assess cardiac function in vivo. Strain analysis allows comprehensive assessment of diastolic myocardial function, which is not indicated by measuring systolic functional parameters using with a normal cine imaging module. Due to the small heart size in mice, it is not possible to perform proper tagged imaging to assess strain. Here, we developed a novel deep learning approach for automated quantification of strain from cardiac cine MR images. Our framework starts by an accurate localization of the LV blood pool center-point using a fully convolutional neural network (FCN) architecture. Then, a region of interest (ROI) that contains the LV is extracted from all heart sections. The extracted ROIs are used for the segmentation of the LV cavity and myocardium via a novel FCN architecture. For strain analysis, we developed a Laplace-based approach to track the LV wall points by solving the Laplace equation between the LV contours of each two successive image frames over the cardiac cycle. Following tracking, the strain estimation is performed using the Lagrangian-based approach. This new automated system for strain analysis was validated by comparing the outcome of these analysis with the tagged MR images from the same mice. There were no significant differences between the strain data obtained from our algorithm using cine compared to tagged MR imaging. Furthermore, we demonstrated that our new algorithm can determine the strain differences between normal and diseased hearts.
Micro-Nano formulation of bile-gut delivery: rheological, stability and cell survival, basal and maximum respiration studies
Authors: Wagle Susbin Raj , Walker Daniel , Kovacevic Bozica , Gedawy Ahmed , Mikov Momir , Golocorbin-Kon Svetlana , Mooranian Armin , Al-Salami Hani 
Published: May 2020

AbstractProbucol (PB) is a drug that exhibits significant hydrophobicity and substantial intra and inter individual variability in oral absorption, with a miniature bioavailability and complex three compartmental pharmacokinetic modelling due to its high lipid affinity, low stability and high octanol to water partition coefficient. Multiple attempts to formulate PB have not produced satisfactory stable matrices, drug-release profile or rheological flow properties for optimum manufacturing conditions, and with positive and none toxic biological effects. Lithocholic acid (LCA) has recently shown to optimise formulation and cell uptake of drugs. Hence, the aim of this study was to design new PB delivery system, using LCA, and examine its morphology, rheology, stability, and cellular effects. PB was formulated with LCA and sodium alginate (PB-LCA-SA) using various microencapsulation methodologies, and best formulation was investigated in vitro and ex vivo. Using our Ionic Gelation Vibrational Jet flow technology, PB-LCA-SA microcapsules showed good stability and significantly enhanced cell viability, cellular respiration, and reduced inflammation suggesting potential LCA applications in PB delivery and biological effects.
The Dynamic Response of Sweat Chloride to Changes in Exercise Load Measured by a Wearable Sweat Sensor
Authors: Choi Dong-Hoon , Kitchen Grant B. , Stewart Kerry J. , Searson Peter C. 
Published: May 2020

AbstractWearable sensors enable the monitoring of an individual’s sweat composition in real time. In this work, we recorded real-time sweat chloride concentration for 12 healthy subjects in three different protocols involving step changes in exercise load and compared the results to laboratory-based analysis. The sensor results reflected the changes in exercise load in real time. On increasing the exercise load from 100 W to 200 W the sweat chloride concentration increased from 12.0 ± 5.9 to 31.4 ± 16 mM (mean ± SD). On decreasing the load from 200 W to 100 W, the sweat chloride concentration decreased from 27.7 ± 10.5 to 14.8 ± 8.1 mM. The half-time associated with the change in sweat chloride, defined as the time at which the concentration reached half of the overall change, was about 6 minutes. While the changes in sweat chloride were statistically significant, there was no correlation with changes in sweat rate or other physiological parameters, which we attribute to intra-individual variation (SD = 1.6–8.1 mM). The response to exercise-induced sweating was significantly different to chemically-induced sweating where the sweat chloride concentration was almost independent of sweat rate. We speculate that this difference is related to changes in the open probability of the CFTR channel during exercise, resulting in a decrease in reabsorption efficiency at higher sweat rates.
Longitudinal changes in the peripapillary retinal nerve fiber layer thickness in the fellow eyes of unilateral retinal vein occlusion
Authors: Shin Yong-Il , Lim Hyung-Bin , Koo Hyungmoon , Lee Woo-Hyuk , Kim Jung-Yeul 
Published: May 2020

AbstractTo analyze longitudinal changes in peripapillary retinal nerve fiber layer (pRNFL) thicknesses over time in the fellow eyes of patients with unilateral retinal vein occlusion (RVO). A total of 47 patients with unilateral RVO and 47 healthy controls were enrolled. The mean and sectoral pRNFL thicknesses were measured using spectral domain-optical coherence tomography at 1 year intervals, and followed for 3 years. Linear mixed models were performed to calculate and compare the reduction rates of pRNFL thicknesses over time. The mean pRNFL thickness decreased significantly during the 3-year follow-up, with a significant decrease over time in both groups. The reduction rate in mean pRNFL thicknesses was −0.41 μm/year in the control group and −0.68 μm/year in the fellow eyes of RVO group, and the decrease was significantly higher in the fellow eyes of RVO group than in the control group (p < 0.001). Using a multivariate linear mixed model, age (estimate: −0.41, p = 0.011) and hypertension (HTN) (estimate: −6.51, p = 0.014) were significantly associated with the reduction in mean pRNFL thicknesses in fellow eyes of RVO group. The fellow eyes of RVO patients showed a greater reduction in pRNFL thickness over time than normal controls. Age and HTN should be considered as factors to decrease the pRNFL thickness over time in fellow eyes of RVO group.
Rhodamine-immobilized optical hydrogels with shape deformation and Hg2+-sensitive fluorescence behaviors
Authors: Qu Zixiang , Meng Xia , Duan Hongdong , Qin Dawei , Wang Lizhen 
Published: May 2020

AbstractA highly effective method for the research and development of a novel macroscopic hydrogel sensor and bilayer hydrogel is reported. Based on Rhodamine 6G, an Hg2+ sensitive fluorescent functional monomer was synthesized, then the monomer was utilized to synthesize hydrogel sensors and bilayer hydrogels. Hydrogel sensor has prominent selectivity to Hg2+, the bilayer hydrogel has shape changing function additionally. By combining a thermoresponsive hydrogel layer, poly N-isopropylacrylamide (PNIPAM), with an Hg2+ selective hydrogel layer via macroscopic supramolecular assembly, a bilayer hydrogel is obtained that can be tailored and reswells. The bilayer hydrogel sensor can show complex shape deformation caused by the PNIPAM layer and the Hg2+-responsive characteristic of hydrogel sensor layer can be observed under visible light or UV light. This work will provide novel insights for the design and synthesis of novel smart materials with synergistic functions.
Isocitrate dehydrogenase (IDH) status prediction in histopathology images of gliomas using deep learning
Authors: Liu Sidong , Shah Zubair , Sav Aydin , Russo Carlo , Berkovsky Shlomo , Qian Yi , Coiera Enrico , Di Ieva Antonio 
Published: May 2020

AbstractMutations in isocitrate dehydrogenase genes IDH1 and IDH2 are frequently found in diffuse and anaplastic astrocytic and oligodendroglial tumours as well as in secondary glioblastomas. As IDH is a very important prognostic, diagnostic and therapeutic biomarker for glioma, it is of paramount importance to determine its mutational status. The haematoxylin and eosin (H&E) staining is a valuable tool in precision oncology as it guides histopathology-based diagnosis and proceeding patient’s treatment. However, H&E staining alone does not determine the IDH mutational status of a tumour. Deep learning methods applied to MRI data have been demonstrated to be a useful tool in IDH status prediction, however the effectiveness of deep learning on H&E slides in the clinical setting has not been investigated so far. Furthermore, the performance of deep learning methods in medical imaging has been practically limited by small sample sizes currently available. Here we propose a data augmentation method based on the Generative Adversarial Networks (GAN) deep learning methodology, to improve the prediction performance of IDH mutational status using H&E slides. The H&E slides were acquired from 266 grade II-IV glioma patients from a mixture of public and private databases, including 130 IDH-wildtype and 136 IDH-mutant patients. A baseline deep learning model without data augmentation achieved an accuracy of 0.794 (AUC = 0.920). With GAN-based data augmentation, the accuracy of the IDH mutational status prediction was improved to 0.853 (AUC = 0.927) when the 3,000 GAN generated training samples were added to the original training set (24,000 samples). By integrating also patients’ age into the model, the accuracy improved further to 0.882 (AUC = 0.931). Our findings show that deep learning methodology, enhanced by GAN data augmentation, can support physicians in gliomas’ IDH status prediction.
Enhanced insulin receptor interaction by a bifunctional insulin-transferrin fusion protein: an approach to overcome insulin resistance
Authors: Liu Yuqian , Wang Hsuan-Yao , Shao Juntang , Zaro Jennica L. , Shen Wei-Chiang 
Published: May 2020

AbstractBifunctional fusion protein design has been widely utilized as a strategy to increase the efficacy of protein therapeutics. Previously, we proposed a novel application of the bifunctional fusion protein design through the introduction of proinsulin-transferrin (ProINS-Tf) fusion protein as a liver-specific protein prodrug to achieve a glucose-lowering effect in type 1 diabetic mice. In this report, we studied the binding characteristics of this activated fusion protein to the insulin receptor to elucidate its mechanism in eliciting insulin receptor-mediated signaling. We found that, with the assistance of the transferrin moiety binding to the transferrin receptor, the activated ProINS-Tf exhibited significantly higher binding affinity to the insulin receptor compared with the native insulin, resulting in a prolonged and stronger Akt phosphorylation. This enhanced induction by activated ProINS-Tf overcame insulin resistance in palmitate-treated HepG2 cells. ProINS-Tf also demonstrated a better glucose-lowering effect than native insulin, even with a much lower dose and less frequent injections, in non-obese diabetic mice with insulin resistance symptoms. The activated ProINS-Tf, serving as a bivalent protein molecule, could be a new insulin analog to overcome insulin resistance, which is associated with several diseases, including type 2 diabetes and non-alcoholic fatty liver disease.
Interval between two sequential arrays determines their storage state in visual working memory
Authors: Li Ziyuan , Zhang Jiafeng , Liang Tengfei , Ye Chaoxiong , Liu Qiang 
Published: May 2020

AbstractThe visual information can be stored as either “active” representations in the active state or “activity-silent” representations in the passive state during the retention period in visual working memory (VWM). Catering to the dynamic nature of visual world, we explored how the temporally dynamic visual input was stored in VWM. In the current study, the memory arrays were presented sequentially, and the contralateral delay activity (CDA), an electrophysiological measure, was used to identify whether the memory representations were transferred into the passive state. Participants were instructed to encode two sequential arrays and retrieve them respectively, with two conditions of interval across the two arrays: 400 ms and 800 ms. These results provided strong evidence for the state-separated storage of two sequential arrays in different neural states if the interval between them was long enough, and the concurrent storage of them in the active state if the interval was relatively short. This conclusion was valid only when the participants encountered the task for the first time. Once participants have formed their mindset, they would apply the same storage mode to the subsequently extended or shortened interval condition.
Impact of Diabetes Mellitus on Head and Neck Cancer Patients Undergoing Concurrent Chemoradiotherapy
Authors: Kuo Hsuan-Chih , Chang Pei-Hung , Wang Cheng-Hsu 
Published: May 2020

AbstractIn this retrospective study, we investigated the impact of diabetes mellitus (DM) on patients with head and neck cancer (HNC) undergoing concurrent chemoradiotherapy (CCRT). We analyzed the demographic and clinical characteristics, treatment tolerance, and toxicities of patients with HNC undergoing primary or adjuvant CCRT with or without DM between 2007 and 2016. Of the 556 patients undergoing CCRT, 84 (15.1%) had DM. Compared with patients without DM, patients with DM were significantly older (56.2 ± 11.2 vs. 51.9 ± 9.5 years, P < 0.001), received lower doses of cisplatin (adjuvant CCRT: 175.30 ± 84.03 vs. 214.88 ± 68.25, P = 0.014; primary CCRT: 142.84 ± 79.49 vs. 187.83 ± 76.19, P < 0.001), and experienced higher rates of infection (adjuvant CCRT: 52% vs. 30.5%, P = 0.042; primary CCRT: 45.8% vs. 22.9%, P < 0.001). Among patients undergoing primary CCRT, compared with those without DM, the patients with DM experienced significantly higher rates of hematologic toxicity (65.7% vs. 39.3%, P = 0.004) and treatment-related deaths (10.2% vs. 3.5%, P = 0.051); and a greater weight loss (−6.17 ± 9.27% vs. −4.49 ± 6.84, P = 0.078). Patients with HNC and DM undergoing CCRT, compared with patients without DM, experienced higher rates of infection and hematotoxicity, loss of body weight, and higher treatment-related mortality.
Ultra-high throughput single-cell analysis of proteins and RNAs by split-pool synthesis
Authors: O’Huallachain Maeve , Bava Felice-Alessio , Shen Mary , Dallett Carolina , Paladugu Sri , Samusik Nikolay , Yu Simon , Hussein Razika , Hillman Grantland R. , Higgins Samuel , Lou Melanie , Trejo Angelica , Qin Laura , Tai Yu Chuan , Kinoshita Shigemi M. , Jager Astraea , Lashkari Deval , Goltsev Yury , Ozturk Sedide , Nolan Garry P. 
Published: May 2020

AbstractSingle-cell omics provide insight into cellular heterogeneity and function. Recent technological advances have accelerated single-cell analyses, but workflows remain expensive and complex. We present a method enabling simultaneous, ultra-high throughput single-cell barcoding of millions of cells for targeted analysis of proteins and RNAs. Quantum barcoding (QBC) avoids isolation of single cells by building cell-specific oligo barcodes dynamically within each cell. With minimal instrumentation (four 96-well plates and a multichannel pipette), cell-specific codes are added to each tagged molecule within cells through sequential rounds of classical split-pool synthesis. Here we show the utility of this technology in mouse and human model systems for as many as 50 antibodies to targeted proteins and, separately, >70 targeted RNA regions. We demonstrate that this method can be applied to multi-modal protein and RNA analyses. It can be scaled by expansion of the split-pool process and effectively renders sequencing instruments as versatile multi-parameter flow cytometers.
Cannibalism makes invasive comb jelly, Mnemiopsis leidyi, resilient to unfavourable conditions
Authors: Javidpour Jamileh , Molinero Juan-Carlos , Ramírez-Romero Eduardo , Roberts Patrick , Larsen Thomas 
Published: May 2020

AbstractThe proliferation of invasive marine species is often explained by a lack of predators and opportunistic life history traits. For the invasive comb jellyMnemiopsis leidyi, it has remained unclear how this now widely distributed species is able to overcome long periods of low food availability, particularly in their northernmost exotic habitats in Eurasia. Based on both field and laboratory evidence, we show that adult comb jellies in the western Baltic Sea continue building up their nutrient reserves after emptying the prey field through a shift to cannibalizing their own larvae. We argue, that by creating massive late summer blooms, the population can efficiently empty the prey field, outcompete intraguild competitors, and use the bloom events to build nutrient reserves for critical periods of prey scarcity. Our finding that cannibalism makes a species with typical opportunistic traits more resilient to environmental fluctuations is important for devising more effective conservation strategies.
Profiles of immune infiltration and its relevance to survival outcome in meningiomas
Authors: Chen Xiaodong , Tian Fen , Lun Peng , Feng Yugong 
Published: May 2020

Abstract
Tumor-infiltrating immune cells play a decisive part in prognosis and survival. Until now, previous researches have not made clear about the diversity of cell types involved in the immune response. The objective of this work was to confirm the composition of tumor-infiltrating immune cells and their correlation with prognosis in meningiomas based on a metagene approach (known as CIBERSORT) and online databases. A total of 22 tumor-infiltrating immune cells were detected to determine the relationship between the immune infiltration pattern and survival. The proportion of M2 macrophages was more abundant in 68 samples, reaching more than 36%. Univariate Cox regression analysis displayed that the proportion of dendritic cells was obviously related to prognosis. Hierarchical clustering analysis identified two clusters by the method of within sum of squares errors, which exhibited different infiltrating immune cell composition and survival. To summarize, our results indicated that proportions of tumor-infiltrating immune cells as well as cluster patterns were associated with the prognosis, which offered clinical significance for research of meningiomas.
Formant-Estimated Vocal Tract Length and Extrinsic Laryngeal Muscle Activation During Modulation of Vocal Effort in Healthy Speakers
Authors: Groll Matti D. , McKenna Victoria S. , Hablani Surbhi , Stepp Cara E. 
Published: May 2020

Purpose
The goal of this study was to explore the relationships among vocal effort, extrinsic laryngeal muscle activity, and vocal tract length (VTL) within healthy speakers. We hypothesized that increased vocal effort would result in increased suprahyoid muscle activation and decreased VTL, as previously observed in individuals with vocal hyperfunction.

Method
Twenty-eight healthy speakers of American English produced vowel–consonant–vowel utterances under varying levels of vocal effort. VTL was estimated from the vowel formants. Three surface electromyography sensors measured the activation of the suprahyoid and infrahyoid muscle groups. A general linear model was used to investigate the effects of vocal effort level and surface electromyography on VTL. Two additional general linear models were used to investigate the effects of vocal effort on suprahyoid and infrahyoid muscle activities.

Results
Neither vocal effort nor extrinsic muscle activity showed significant effects on VTL; however, the degree of extrinsic muscle activity of both suprahyoid and infrahyoid muscle groups increased with increases in vocal effort.

Conclusion
Increasing vocal effort resulted in increased activation of both suprahyoid and infrahyoid musculature in healthy adults, with no change to VTL.
Vollwandresektion eines Pylorusdrüsenadenoms im proximalen Duodenum bei einem 67-jährigen Patienten mit attenuierter Polyposis coli
Authors: Anliker Oliver , Sieweke Wolfram , Töpfer Antonia , Wülker Ines , Breidert Matthias 
Published: May 2020

Zusammenfassung
Einleitung Das Pylorusdrüsenadenom (PGA) ist eine unterdiagnostizierte, seltene Entität, die meist im Magen zu finden ist. Ähnlich wie kolorektale Adenome haben PGAs ein hohes Risiko für eine maligne Entartung zum Adenokarzinom von bis zu 12–47 %. Endoskopische Resektionen im Duodenum bergen ein erhebliches Risiko für Komplikationen. Die endoskopische Mukosaresektion (EMR) ist die derzeitige Standardtechnik zur Behandlung von duodenalen nichtampullären Adenomen. Die vollständigen Resektionsraten sind mit etwa 90 % beträchtlich hoch. Komplikationen wie Blutungen wurden bis zu 25 % verzeichnet. Die endoskopische Submukosadissektion (ESD) wird für die Resektion von Duodenalläsionen nicht empfohlen, da die Perforationsrate bis zu 35 % betragen kann. Die Anwendung der endoskopischen Vollwandresektion (EFTR) im Duodenum ist auf eine Fallstudie mit 20 Patienten beschränkt.
Fall Ein 67-jähriger Patient mit attenuierter Polyposis coli (FAP) wurde zum Screening vorgestellt. Die Gastroskopie zeigte eine 20 mm große, nichtampulläre Läsion im proximalen Duodenum (Pars I). Die Ränder der Duodenalläsionen wurden mit einer Hochfrequenzsonde (HF) markiert. Eine integrierte Ballondilatation (20 mm) des oberen Ösophagussphinkters und des Pylorus erleichterte das Vorschieben des Device (FTRD®, Fa. Ovesco Endoscopy AG, Tübingen). Nachdem die Läsion mit einem Greifer in die Kappe gezogen worden war, erfolgte die Applikation der Bärenklaue, und die Läsion wurde anschließend mit der integrierten Schlinge reseziert. Eine einmalige Antibiotikaprophylaxe mit 2 g Ceftriaxon i. v. wurde während der Intervention verabreicht. Die Second-Look-Endoskopie erfolgte 24 Stunden nach der Resektion. Das Resektat zeigte eine PGA von 18 mm Größe im proximalen Duodenum (immunhistochemisch positiv für Mucin-1, Mucin-5, Mib 1).
Zusammenfassung Hier präsentieren wir den ersten Fall einer duodenalen EFTR bei einem Patienten mit attenuierter FAP mit Erstbeschreibung eines Pylorusdrüsenadenoms. Derzeit gibt es keine spezifischen Richtlinien für die Entfernung und Überwachung. Die ASGE empfiehlt bei Pylorusdrüsenadenomen eine Resektions- und Überwachungsendoskopie im Abstand von 3–5 Jahren.