bluuebunny/crossref_metadata_2025_split huggingface dataset:
Color and molecular structure alterations of brazilein extracted from Caesalpinia sappan L. under different pH and heating conditions
Authors: Ngamwonglumlert Luxsika , Devahastin Sakamon , Chiewchan Naphaporn , Raghavan G. S. Vijaya 
Published: July 2020

AbstractBrazilein extract from sappan wood (Caesalpinia sappan L.) has potential for use as natural food colorant since it has no unique flavor and taste. Although brazilein has long been applied in several traditional foods and beverages, information on its stability, which is of importance for practical application, is still limited. In this work, brazilein was isolated from sappan wood; its purity was confirmed by nuclear magnetic resonance spectroscopy. Relations between molecular structures and color as well as thermal stabilities of brazilein in aqueous solutions at pH 3, 7 and 9 were for the first time investigated. At the lowest pH, zero net-charge structure of brazilein, which exhibited yellow color, was predominantly found. The deprotonated and fully deprotonated structures of brazilein, which exhibited orange and red colors, respectively, were found when pH of the aqueous solutions increased. The forms of brazilein existing at the higher pH suffered extensive degradation upon heating, while the form existing at the lowest pH possessed higher stability. Heat-induced deprotonation and degradation were confirmed by UV–visible and Fourier-transform infrared spectra as well as losses of brazilein content.
One Health promotion and the politics of dog management in remote, northern Australian communities
Authors: Brookes Victoria J. , Ward Michael P. , Rock Melanie , Degeling Chris 
Published: July 2020

AbstractCommunity perspectives are rarely sought or integrated into dog management policy and practice. Dog management in remote communities in Australia has focused on reducing the number of dogs, which is often implemented by visiting veterinarians, despite widely-held opinions that fly-in-fly-out services provide only temporary solutions. We conducted participatory research in a group of remote communities in northern Australia to explore how dog-related problems arise and are managed, and explain their impacts from a One Health perspective. Over the course of a year, 53 residents from a range of backgrounds contributed through in-depth interviews with key community service providers, and informal semi-structured discussions with community residents. Free-roaming dogs have broader impacts on canine and human health than previously documented. Dog-keeping norms that enable free-roaming can enhance human and dog wellbeing and intra-family connectivity. This can also cause disengagement and conflict with other residents, leading to resentment and occasionally violence towards dogs. Dog-related problems are underpinned by constraints associated with remote-living, governance and differing sociocultural norms. Focusing on dog population reduction detracts from the welfare benefits and sociocultural value of free-roaming dogs and undermines community-determined management that can overcome constraints to support local values and co-promote canine and human wellbeing.
Characterization of partially ordered states in the intrinsically disordered N-terminal domain of p53 using millisecond molecular dynamics simulations
Authors: Herrera-Nieto Pablo , Pérez Adrià , De Fabritiis Gianni 
Published: July 2020

AbstractThe exploration of intrinsically disordered proteins in isolation is a crucial step to understand their complex dynamical behavior. In particular, the emergence of partially ordered states has not been explored in depth. The experimental characterization of such partially ordered states remains elusive due to their transient nature. Molecular dynamics mitigates this limitation thanks to its capability to explore biologically relevant timescales while retaining atomistic resolution. Here, millisecond unbiased molecular dynamics simulations were performed in the exemplar N-terminal region of p53. In combination with state-of-the-art Markov state models, simulations revealed the existence of several partially ordered states accounting for $$\sim $$
∼
40% of the equilibrium population. Some of the most relevant states feature helical conformations similar to the bound structure of p53 to Mdm2, as well as novel $$\beta $$
β
-sheet elements. This highlights the potential complexity underlying the energy surface of intrinsically disordered proteins.
Real-time and ultrahigh accuracy image synthesis algorithm for full field of view imaging system
Authors: Liu Shu-Bin , Wang Jin-Hui , Yuan Rong-Ying , Zhao Wu-Xiang , Li Lei , Wang Qiong-Hua 
Published: July 2020

AbstractIn this paper, we propose a real time, ultrahigh accuracy and full-field-of-view (RUF) algorithm for full field of view (FOV) imaging system. The proposed algorithm combines rough matching and precise matching method to stitch multiple images with the whole FOV in short time and high imaging quality. In order to verify real-time imaging effect of RUF algorithm, we also fabricate a multi-camera imaging system which includes 19 independent cameras. And the experiment result practically illustrates that full-FOV system can achieve good performances under a near-limiting FOV of 360° × 240° with low distortion, meanwhile, optical resolution reaches up to 95 megapixels. 100% registration-accuracy RUF algorithm for imaging in one second can be widely applied to any optical imaging engineering field with large FOV, such as remote sensing imaging, microscopy imaging, monitoring system engineering fields and so on.
Polymorphism at rs9264942 is associated with HLA-C expression and inflammatory bowel disease in the Japanese
Authors: Suzuki Hiroshi , Joshita Satoru , Hirayama Atsuhiro , Shinji Akihiro , Mukawa Kenji , Sako Minako , Yoshimura Naoki , Suga Tomoaki , Umemura Takeji , Ashihara Norihiro , Yamazaki Tomoo , Ota Masao 
Published: July 2020

AbstractAn expression quantitative trait locus (eQTL) single-nucleotide polymorphism (SNP) at rs9264942 was earlier associated with human leukocyte antigen (HLA)-C expression in Europeans. HLA-C has also been related to inflammatory bowel disease (IBD) risk in the Japanese. This study examined whether an eQTL SNP at rs9264942 could regulate HLA-C expression and whether four SNP haplotypes, including the eQTL SNP at rs9264942 and three SNPs at rs2270191, rs3132550, and rs6915986 of IBD risk carried in the HLA-C*12:02~B*52:01~DRB1*15:02 allele, were associated with IBD in the Japanese. HLA-C expression on CD3e+CD8a+lymphocytes was significantly higher for the CC or CT genotype than for the TT genotype of rs9264942. The TACC haplotype of the four SNPs was associated with a strong susceptibility to ulcerative colitis (UC) but protection against Crohn’s disease (CD) as well as with disease clinical outcome. While UC protectivity was significant but CD susceptibility was not for the CGTT haplotype, the significance of UC protectivity disappeared but CD susceptibility reached significance for the CGCT haplotype. In conclusion, our findings support that the eQTL SNP at rs9264942 regulates HLA-C expression in the Japanese and suggest that the four SNPs, which are in strong linkage disequilibrium, may be surrogate marker candidates of a particular HLA haplotype, HLA-C*12:02~B*52:01~DRB1*15:02, related to IBD susceptibility and disease outcome.
Metalo components exhibiting significant anticancer and antibacterial properties: a novel sandwich-type like polymeric structure
Authors: Karadağ Ahmet , Korkmaz Nesrin , Aydın Ali , Akbaş Hüseyin , Tekin Şaban , Yerli Yusuf , Şen Fatih 
Published: July 2020

AbstractFour new dicyanoargentate(I)-based complexes 1–4 were synthesized from certain metal ions with a tetradentate ligand [N, N-bis (2-hydroxyethyl) -ethylenediamine; N-bishydeten] and determined by diverse procedures (elemental, thermal, FT-IR, ESI–MS for 1–3 and, magnetic susceptibility and EPR for 1, and 2) including crystal analysis of 4. The crystal method revealed that complex 4 has a sandwich-type like polymeric chemical structure with layers formed by [Cd(N-bishydeten)2]2+ cations and [Ag(CN)2]− anions. The complexes were further characterized by fluorescence and UV spectroscopy to determine their physicochemical features. The complexes displayed a DNA binding activity within the same range as found for cisplatin, in addition to their strong stability in the presence of the physiological buffer system. The complexes were also investigated for pharmacological properties like interaction with DNA/Bovine serum albumin, anticancer and antibacterial activities. Physicochemical studies of DNA with the complexes suggested that the interaction mode between them are possibly both intercalative and groove binding types. These spectroscopic measurements also show that there may be a binding tendency between BSA and the complexes via hydrogen or Van der Waals bonds. The viability tests demonstrated that all the complexes exhibited antibacterial (1–4) and anticancer effects (2–4) toward ten diverse bacterial strains and three tumor cells (HT-29 colon adenocarcinoma, HeLa cervical cancer, and C6 glioma), respectively.
Significant correlation between plasma proteome profile and pain intensity, sensitivity, and psychological distress in women with fibromyalgia
Authors: Wåhlén Karin , Ernberg Malin , Kosek Eva , Mannerkorpi Kaisa , Gerdle Björn , Ghafouri Bijar 
Published: July 2020

AbstractFibromyalgia (FM) is a complex pain condition where the pathophysiological and molecular mechanisms are not fully elucidated. The primary aim of this study was to investigate the plasma proteome profile in women with FM compared to controls. The secondary aim was to investigate if plasma protein patterns correlate with the clinical variables pain intensity, sensitivity, and psychological distress. Clinical variables/background data were retrieved through questionnaires. Pressure pain thresholds (PPT) were assessed using an algometer. The plasma proteome profile of FM (n = 30) and controls (n = 32) was analyzed using two-dimensional gel electrophoresis and mass spectrometry. Quantified proteins were analyzed regarding group differences, and correlations to clinical parameters in FM, using multivariate statistics. Clear significant differences between FM and controls were found in proteins involved in inflammatory, metabolic, and immunity processes. Pain intensity, PPT, and psychological distress in FM had associations with specific plasma proteins involved in blood coagulation, metabolic, inflammation and immunity processes. This study further confirms that systemic differences in protein expression exist in women with FM compared to controls and that altered levels of specific plasma proteins are associated with different clinical parameters.
Developing a routine lab test for absolute quantification of HER2 in FFPE breast cancer tissues using Quantitative Dot Blot (QDB) method
Authors: Yu Guohua , Zhang Wenfeng , Zhang Yunyun , Lv Jiahong , Wu Shishou , Sui Xiaolong , Zhang Jiandi , Tang Fangrong 
Published: July 2020

AbstractDeveloping immunoassay for absolute quantitation of protein biomarkers in Formalin Fixed Paraffin Embedded (FFPE) samples promises improved objectivity, consistency and accuracy in daily clinical practice. The feasibility of Quantitative Dot Blot (QDB) method for this purpose was explored in this study. We were able to measure HER2 protein levels using 0.5 µg/sample total protein lysate extracted from 2 × 5 µm FFPE slices absolutely and quantitatively using QDB method in 332 breast cancer FFPE samples. HER2 levels measured using two clinically validated antibodies for immunohistochemistry respectively were highly correlated (r = 0.963). We also achieved area under the curve (AUC) at 0.9998 ± 0.0002 (p < 0.0001, n = 224) with IHC analysis, and 0.9942 ± 0.0031 (p < 0.0001, n = 319) with combined results from IHC and Fluorescence in situ hybridization (FISH) analyses when analyzed with Receiver Operative Characteristics analysis (ROC) respectively. When the results were converted dichotomously with optimized cutoffs from ROC analyses, we achieved 99.5% concordance with IHC; and 96.9% with combined results from both IHC and FISH analyses. Therefore, we were able to demonstrate QDB method as the first immunoassay platform for absolute quantitation of protein biomarkers in FFPE samples to meet the need of daily clinical practice, especially for local laboratories or laboratories in developing countries.
Controlling technical variation amongst 6693 patient microarrays of the randomized MINDACT trial
Authors: Jacob Laurent , Witteveen Anke , Beumer Inès , Delahaye Leonie , Wehkamp Diederik , van den Akker Jeroen , Snel Mireille , Chan Bob , Floore Arno , Bakx Niels , Brink Guido , Poncet Coralie , Bogaerts Jan , Delorenzi Mauro , Piccart Martine , Rutgers Emiel , Cardoso Fatima , Speed Terence , van ’t Veer Laura , Glas Annuska 
Published: July 2020

AbstractGene expression data obtained in large studies hold great promises for discovering disease signatures or subtypes through data analysis. It is also prone to technical variation, whose removal is essential to avoid spurious discoveries. Because this variation is not always known and can be confounded with biological signals, its removal is a challenging task. Here we provide a step-wise procedure and comprehensive analysis of the MINDACT microarray dataset. The MINDACT trial enrolled 6693 breast cancer patients and prospectively validated the gene expression signature MammaPrint for outcome prediction. The study also yielded a full-transcriptome microarray for each tumor. We show for the first time in such a large dataset how technical variation can be removed while retaining expected biological signals. Because of its unprecedented size, we hope the resulting adjusted dataset will be an invaluable tool to discover or test gene expression signatures and to advance our understanding of breast cancer.
Predicting frequency changes of global-scale solar Rossby modes due to solar cycle changes in internal rotation
Authors: Goddard C. R. , Birch A. C. , Fournier D. , Gizon L. 
Published: July 2020

Context. Large-scale equatorial Rossby modes have been observed on the Sun over the last two solar cycles.
Aims. We investigate the impact of the time-varying zonal flows on the frequencies of Rossby modes.
Methods. A first-order perturbation theory approach is used to obtain an expression for the expected shift in the mode frequencies due to perturbations in the internal rotation rate.
Results. Using the time-varying rotation from helioseismic inversions we predict the changes in Rossby mode frequencies with azimuthal orders from m = 1 to m = 15 over the last two solar cycles. The peak-to-peak frequency change is less than 1 nHz for the m = 1 mode, grows with m, and reaches 25 nHz for m = 15.
Conclusions. Given the observational uncertainties on mode frequencies due to the finite mode lifetimes, we find that the predicted frequency shifts are near the limit of detectability.
Das Myalgie-Faszikulations-Krampus-Syndrom (MFKS)
Authors: Rollnik Jens D. , Däuper Jan 
Published: July 2020

ZusammenfassungDie vorliegende Übersichtsarbeit beschäftigt sich mit dem Myalgie-Faszikulations-Krampus-Syndrom (MFKS), einer gutartigen Erkrankung, die zu den Hyperexzitabilitätssyndromen des peripheren Nervensystems gezählt wird. Der Artikel stellt die Klinik, Pathophysiologie, Differenzialdiagnostik und Therapie dar und illustriert das MFKS mit einem typischen Fallbericht.
Determinants of Cardiovascular Disease among Urban Women with Psoriasis: A Case–Control Study
Authors: Bala Sudha , Mavoori Archana , Pandve Harshal , Biswal Chinmayee , Prasanna Vijay , Jogi Suneeth 
Published: July 2020

Abstract
Background and Aim Psoriasis have a direct impact on development of cardiovascular risk factors leading to atherosclerosis and metabolic abnormalities. In order to prevent the complications, early and prompt identification of factors through various parameters help in primary and secondary prevention of cardiovascular diseases (CVDs) among these psoriatic patients. Therefore the aim of this study is to determine the prevalence of various determinants for cardiovascular diseases among cases and controls.
Methods A hospital based case control study at a tertiary care hospital included women from the out patient department, aged above 18 years who were known cases of psoriasis. 114 patients were recruited with 1:1 ratio between cases and controls. All patients were evaluated using semi structured interview schedule with socio demographic variables, duration of disease, family history, and usage of drugs. Severity of disease was assessed through the psoriasis area severity index (PASI). Body surface area (BSA), body mass index (BMI), waist circumference and blood pressure measurement were done using standard methods. Lipid profile, high sensitivity C-Reactive protein (HsCRP) and blood sugar through calibrated analyzers having quality control. Carotid intima media thickness (CIMT) was assessed by using carotid Doppler technique to measure atherosclerosis.
Results One hundred fourteen patients, means 57 pairs of cases and controls were analyzed in this study. Significant determinants among cases were raised such as waist circumference (p = 0.025), diastolic blood pressure (p = 0.0001), low density lipoprotein (p = 0.002) and fasting blood glucose (p = 0.004) when compared to controls. HsCRP and CIMT were also raised among cases but only CIMT was statistically significant when compared to controls (p = 0.0001). We also found raised determinants among psoriatic arthritis patients compared to psoriasis.
Conclusion Psoriasis patients had high waist circumference, diastolic blood pressure, low density lipoprotein, fasting blood glucose, and CIMT when compared to controls. Early identification of these determinants make them amenable for prevention.
Nickel-Catalyzed Asymmetric Cross-Electrophile Coupling Reactions
Authors: Wang Chuan , Jin Youxiang 
Published: July 2020

The merger of cross-electrophile coupling and asymmetric catalysis provides a novel approach to the preparation of optically active compounds. This method is often endowed with high step economy, mild conditions, and excellent tolerance of functional groups. Recent advances in the research field of nickel-catalyzed asymmetric cross-electrophile coupling reactions are highlighted in this concise Synpacts article.1 Introduction2 Asymmetric Cross-Electrophile Coupling Reactions between Organohalides3 Asymmetric Electrophilic Ring-Opening Reactions4 Asymmetric Electrophilic Difunctionalization of Alkenes4.1 Two-Component Electrophilic Difunctionalization of Alkenes Involving Arylnickelation as an Enantiodetermining Step4.2 Two-Component Electrophilic Difunctionalization of Alkenes Involving Carbamoylnickelation as an Enantiodetermining Step4.3 Three-Component Electrophilic Difunctionalization of Alkenes5 Asymmetric Electrophilic Functionalization of Carbonyl Compounds6 Summary
Will Resting Full-Cycle Ratio Substitute Fractional Flow Reserve
Authors: Aditya M. S. 
Published: July 2020

AbstractPhysiological assessment of coronary artery stenosis added an element of certainty of benefit to the patient undergoing revascularization. Fractional flow reserve (FFR) was the gold standard, with good reproducibility, correlation with noninvasive inducible ischemia testing and, most importantly, clinical benefit. Increased usage also brought into focus some limitations with respect to achieving hyperemia, assessment of sequential stenoses, drift, multivessel disease, chronic total occlusion, fidelity and accuracy of measurement and, in some cases, cost of adenosine. This set the background for nonhyperemic testing which eliminates the need for drug administration and simplifies procedure vastly.
The Association between Oral Anticoagulants and Cancer Incidence among Individuals with Nonvalvular Atrial Fibrillation
Authors: Abrahami Devin , Renoux Christel , Yin Hui , Fournier Jean-Pascal , Azoulay Laurent 
Published: July 2020

Abstract
Objective Existing evidence on the association between vitamin K antagonists (VKAs) and direct oral anticoagulants (DOACs) and cancer is limited and contradictory. No observational studies have been conducted to simultaneously address the cancer safety of VKAs and DOACs. The objective of this study was to determine whether use of VKAs and DOACs, separately, when compared with nonuse, is associated with cancer overall and prespecified site-specific incidence.
Methods Using the United Kingdom Clinical Practice Research Datalink, we identified patients newly diagnosed with nonvalvular atrial fibrillation (NVAF) between 2011 and 2017. Using a time-varying exposure definition, each person-day of follow-up was classified as use of (1) VKAs, (2) DOACs, (3) VKAs and DOACs (drug switchers), and (4) nonuse of anticoagulants (reference). We also conducted a head-to-head comparison of new users of DOACs versus VKAs using propensity score fine stratification weighting. Hazard ratios (HRs) with 95% confidence intervals (CIs) for cancer overall and prespecified subtypes were estimated using Cox proportional hazards models.
Results Compared with nonuse, use of VKAs was not associated with cancer overall (HR: 1.05, 95% CI: 0.91–1.22) or cancer subtypes. Similarly, use of DOACs was not associated with cancer overall (HR: 1.13, 95% CI: 0.93–1.37), but an association was observed for colorectal cancer (HR: 1.73, 95% CI: 1.01–2.99), and pancreatic cancer generated an elevated, though nonsignificant HR (HR: 2.15, 95% CI: 0.72–6.44). Results were consistent in the head-to-head comparison.
Conclusion Use of oral anticoagulants is not associated with the incidence of cancer overall among patients with NVAF. Possible associations between DOACs and colorectal and pancreatic cancer warrant further study.
Unilateral Nasal Obstruction Causes Symptom Severity Scores Similar to Bilateral Nasal Obstruction
Authors: Weitzman Rachel E. , Feng Allen L. , Justicz Natalie , Gadkaree Shekhar K. , Lindsay Robin W. 
Published: July 2020

AbstractThe objective of this paper is to investigate the differences between unilateral and bilateral nasal obstruction with subjective symptomatology in nasal obstruction. This is a retrospective chart review of prospectively collected data of patients with nasal obstruction presenting to a facial plastic and reconstructive surgery clinic for evaluation and treatment. Patient demographics including age and gender were recorded along with nasal physical exam findings. These included internal valve narrowing (IVN), external valve narrowing, internal valve collapse, external valve collapse, and septal deviations (inferior and superior). Findings were reported for the left, the right, and both sides. Nasal valve and septal findings were recorded on 3- and 4-point Likert scales, respectively, for each side of the nose. A total of 1,646 patients were included in the study. On univariate analysis, a significant correlation was seen between Nasal Obstruction Symptom Evaluation (NOSE) scores and all individual exam findings (p < 0.001). On multiple linear regression, total, left, and right septal deviation (p < 0.001, p = 0.001, p = 0.007, respectively) and total, left, and right IVN (p < 0.001, p = 0.003, p < 0.001) were all predictive of an increased NOSE score. Patients with unilateral septal deviation or internal nasal valve narrowing have symptoms of nasal obstruction similar to those with bilateral nasal obstruction. Unilateral and bilateral septal deviation and internal nasal valve narrowing are predictive of having an increased NOSE score. Unilateral nasal obstruction should be recognized and treated as a cause for severe symptomatic nasal obstruction despite a normal contralateral nasal exam.