bluuebunny/crossref_metadata_2025_split huggingface dataset:
Antitumor and multikinase inhibition activities of some synthesized coumarin and benzofuran derivatives
Authors: Ahmed Eman Y. , Abdelhafez Omaima M. , Zaafar Dalia , Serry Aya M. , Ahmed Yasmine H. , El‐Telbany Rania Farag A. , Abd Elmageed Zakaria Y. , Ali Hamed I. 
Published: March 2022

AbstractTwo new series of coumarin and benzofuran derivatives were designed, synthesized, and assessed for their in vitro and in vivo antitumor activities against breast cancer. Compounds 8, 9, 14, 15, and 17 exhibited the best antiproliferative activities (IC50: 0.07−2.94 μM) against the MCF‐7 cell line, compared with lapatinib (IC50: 4.69 μM). Compound 14, with the most potent cytotoxic activity against MCF‐7 cells, was capable of enhancing preG1 apoptosis and triggering cell cycle arrest at the G2/M phase. The kinase inhibitory activity of compound 14 against a panel of 22 kinases was examined to reveal multikinase inhibition within −39% to −97%. Furthermore, compound 14 exhibited potent in vivo Ehrlich (mammary adenocarcinoma) tumor regression, positive caspase‐3, and negative EGFR immunoreaction, and was capable of elevating the catalase level. The physicochemical properties and pharmacokinetic parameters of compound 14 were investigated in silico for its druglikeness.
Metal‐free Sulfur‐doped graphitic carbon nitride‐modified GCE‐based electrocatalyst for the enhanced electrochemical determination of Omeprazole in Drug formulations and Biological Samples
Authors: Pandian Kannaiyan , Kalayarasi Jayaprakash , Gopinath Subash C.B. 
Published: March 2022

AbstractThis study presents a novel sulfur‐doped graphitic carbon nitride (S@g‐C3N4) with a wider potential range as electrocatalyst for electrochemical sensor application. The S@g‐C3N4 nanosheets were successfully prepared with a ball milling method by mixing appropriate molar concentration required precursors. The as‐synthesized heteroatom‐doped graphitic carbon nitride is characterized by spectroscopic techniques including PL, DRS‐UV, FT‐IR, and Brunauer–Emmett–Teller equation. The morphological features were studied by FE‐SEM and HR‐TEM analysis. Chit‐S@g‐C3N4‐modified glassy carbon electrode (GCE) was employed for the electrochemical detection of omeprazole (OMZ) use in drug formulations. We have noted an oxidation peak current response at a potential of +0.8 V versus Ag/AgCl in PBS medium (0.1 M, pH 7.0). Differential pulse voltammetry amperometry experimental method can be used to measure the concentration of OMZ for quantitative studies in known samples. Under the optimized experimental condition, the calibration plot was constructed by plotting the peak currents versus OMZ in the linear ranges from 6.0 × 10−7 to 26 × 10−5 M. The linear regression equation is estimated to be Ip (μA) = 0.9518 (C/μM) + 0.3340 with a good correlation coefficient of 0.9996. The lower determination limit was found to be 20 nM and the current sensitivity was calculated (31.722 μA μM−1 cm−2). The developed sensor was utilized successfully to determine the OMZ concentration in drug formulations and biological fluids. These results revealed that the Chit‐S@g‐C3N4‐modified GCE showed excellent electroanalytical performance for the detection of OMZ at a low LOD, wider linear range, high sensitivity, good reproducibility, long‐term storage stability, and selectivity with an acceptable relative standard deviation value.
Iongel Soft Solid Electrolytes Based on [DEME][TFSI] Ionic Liquid for Low Polarization Lithium‐O2 Batteries
Authors: Alvarez‐Tirado Marta , Castro Laurent , Guéguen Aurélie , Mecerreyes David 
Published: March 2022

AbstractLithium‐air/O2 batteries are a promising battery technology for automotive applications due to their high energy density. However, many challenges need to be solved, particularly the high reactivity of the electrolyte with oxygen superoxide radicals and its low cyclability. In this work, we present a simple and fast way to prepare polymer‐based iongel soft solid electrolytes. Thermally and mechanically stable iongels are prepared by fast UV‐photopolymerisation exhibiting a high ionic conductivity (∼1.2×10−3 S cm−1 at 25 °C). When used as solid electrolytes in lithium symmetrical cells, they can withstand a critical current density of 0.5 mA cm−2. Performance in Li−O2 cells showed capacities as large as 3.3 mAh cm−2, and cycling capability of 25 cycles, exceeding results on liquid‐counterpart cells.
Impact of COVID‐19 pandemic on patients with obstructing urinary stones complicated by infection
Authors: Herzberg Haim , Savin Ziv , Lasmanovich Rinat , Marom Ron , Ben‐David Reuben , Mano Roy , Yossepowitch Ofer , Sofer Mario 
Published: March 2022

AbstractObjectiveTo assess the influence of COVID‐19‐imposed life changes on presentation and outcomes of patients with obstructing urinary stones complicated by infection.Patients and methodsAll patients presenting with obstructing urinary stones and infection 1 year before the pandemic (March 2019 to February 2020; n = 66) and 1 year since its onset (March 2020 to February 2021; n = 45) were enrolled. Demographics, clinical presentation, laboratory panel, stone characteristics and outcomes were compared between groups. Univariate and multivariate logistic regression models were performed for analysis.ResultsThe COVID‐19 period was characterised by younger patients, female predominance, higher temperature at presentation and more bilateral obstructing stones (p < 0.05). The admission rate to intensive care units was double that of the pre‐pandemic period, whereas time between diagnosis and treatment was similar. The univariate analysis revealed higher rates of severe sepsis (odds ratio [OR] = 3, p = 0.01), systemic inflammatory response syndrome (SIRS) ≥ 2 (OR = 2.9, p = 0.01) and risk, injury, failure, loss of kidney function and end‐stage kidney (RIFLE) criteria ≥ 1 (OR = 2.2, p = 0.04) in the pandemic period group. The multivariate analyses revealed the COVID‐19 period as being the sole variable associated with severe sepsis (OR = 3.1, p = 0.02), SIRS ≥ 2 (OR = 3.8, p = 0.005) and RIFLE ≥ 1 (OR = 2.6, p = 0.05).ConclusionsThe pandemic period was characterised by a worse clinical state at presentation of patients with obstructing urinary stones complicated by infection, probably reflecting delay in arrival to emergency services.
Rab34 plays a critical role as a bidirectional regulator of osteoclastogenesis
Authors: Feng Yunxia , Tran Manh Tien , Lu Yanyin , Htike Kaung , Okusha Yuka , Sogawa Chiharu , Eguchi Takanori , Kadowaki Tomoko , Sakai Eiko , Tsukuba Takayuki , Okamoto Kuniaki 
Published: March 2022

AbstractAccumulating evidence suggests that Rab GTPases representing the largest branch of Ras superfamily have recently emerged as the core factors for the regulation of osteoclastogenesis through modulating vesicular transport amongst specific subcellular compartments. Among these, Rab34 GTPase has been identified to be important for the post‐Golgi secretory pathway and for phagocytosis; nevertheless, its specific role in osteoclastogenesis has been completely obscure. Here, upon the in vitro model of osteoclast formation derived from murine macrophages like RAW‐D cells or bone marrow–derived macrophages, we reveal that Rab34 regulates osteoclastogenesis bidirectionally. More specifically, Rab34 serves as a negative regulator of osteoclast differentiation by promoting the lysosome‐induced proteolysis of two osteoclastogenic surface receptors, c‐fms and RANK, via the axis of early endosomes‐late endosomes–lysosomes, leading to alleviate the transcriptional activity of two of the master regulator of osteoclast differentiation, c‐fos and NFATc‐1, eventually attenuating osteoclast differentiation and bone resorption. Besides, Rab34 plays a crucial role in modulating the secretory network of lysosome‐related proteases including matrix metalloprotease 9 and Cathepsin K across the ruffled borders of osteoclasts, contributing to the regulation of bone resorption.
Copy number and expression of CEP89, a protein required for ciliogenesis, are increased and predict poor prognosis in patients with ovarian cancer
Authors: Berkel Caglar , Cacan Ercan 
Published: March 2022

AbstractCEP89 (centrosomal protein 89) is required for ciliogenesis and mitochondrial metabolism, but its role in cancer has yet to be clarified. We report that CEP89 is overexpressed in ovarian cancer (OC) compared to normal ovaries. Likewise, its expression is higher in malignant ovarian tumors than in borderline ovarian tumors with low malignant potential. More than a quarter of patients with OC have copy number gains in the CEP89 gene, and patients with high expression have more than a year shorter overall survival compared to those with low expression. Moreover, we found that CEP89 can be considered as a prognostic marker for poor overall survival in patients with OC, after adjusting for tumor stage and residual tumor. Nine out of the top 10 protein interactors of CEP89 have the highest percentage of total copy number variation (CNV) events in OC among all other cancer types. Furthermore, CEP89 messenger RNA (mRNA) levels are higher in OC patients with disease recurrence compared to those with no recurrence. We also analyzed CEP89 levels in OC cell lines in terms of CNV, mRNA, and protein levels; and observed that the FUOV‐1 cell line has the highest levels among cell lines that originated from primary sites. Our study suggests that CEP89 may be a valuable prognostic predictor for the overall survival of patients with OC, and it could also be a novel therapeutic target in this malignancy.
Inhibition of extracellular vesicle biogenesis in tumor cells: A possible way to reduce tumorigenesis
Authors: Rezaie Jafar , Akbari Ali , Rahbarghazi Reza 
Published: March 2022

AbstractMost eukaryotic cells secrete extracellular vesicles (EVs), which contribute to intracellular communication through transferring different biomolecules such as proteins, RNAs, and lipids to cells. Two main types of EVs are exosomes and microvesicles. Exosomes originate from multivesicular bodies, while microvesicles are shed from the plasma membrane. Mechanisms of exosomes and microvesicle biogenesis/trafficking are complex and many molecules are involved in their biogenesis and secretion. Tumor‐derived EVs contain oncogenic molecules that promote tumor growth, metastasis, immune surveillance, angiogenesis, and chemoresistance. A growing body of evidence indicates various compounds can inhibit biogenesis and secretion of EVs from cells and several experiments were conducted to use EVs‐inhibitors for understanding the biology of the cells or for understanding the pathology of several diseases like cancer. However, the nontargeting effects of drugs/inhibitors remain a concern. Our current knowledge of EVs biogenesis and their inhibition from tumor cells may provide an avenue for cancer management. In this review, we shed light on exosomes and microvesicles biogenesis, key roles of tumor‐derived EVs, and discuss methods used to inhibition of EVs by different inhibitors.
Manganese‐induced parkinsonism responsive to intranasal insulin: A case report
Authors: Salari Mehri , Etemadifar Masoud , Dargahi Leila , Valian Neda , Rezaee Malihe 
Published: March 2022

AbstractHere, we introduced a patient with Mn‐induced parkinsonism who was responsive to intranasal insulin, and his parkinsonism and dystonia responded to this treatment.
Hereditary hemorrhagic telangiectasia in a sudanese patient: A case report
Authors: Toum Ahmed Fadi M. , Eljack Moh. Mah. Fadelallah , Abdulkarim Mohamed , Alamin Mohammed Hiba Faroug 
Published: March 2022

Abstract(HHT) is a rare disorder affecting the skin and body's internal organs with a tendency for bleeding. We report a case of Sudanese 42‐year‐old with family history of HHT presented with recurrent epistaxis and telangiectasias.
Excess cancer prevalence in men with HIV: A nationwide analysis of Medicaid data
Authors: Koroukian Siran M. , Zhou Guangjin , Navale Suparna M. , Schiltz Nicholas K. , Kim Uriel , Rose Johnie , Cooper Gregory S. , Moore Scott Emory , Mintz Laura J. , Avery Ann K. , Mukherjee Sudipto , Markt Sarah C. 
Published: March 2022

BackgroundCancer is one of the most common comorbidities in men living with HIV (MLWH). However, little is known about the MLWH subgroups with the highest cancer burden to which cancer prevention efforts should be targeted. Because Medicaid is the most important source of insurance for MLWH, we evaluated the excess cancer prevalence in MLWH on Medicaid relative to their non‐HIV counterparts.MethodsIn this cross‐sectional study using 2012 Medicaid Analytic eXtract data nationwide, we flagged the presence of HIV, 13 types of cancer, symptomatic HIV, and viral coinfections using codes from the International Classification of Diseases, Ninth Revision, Clinical Modification. The study population included individuals administratively noted to be of male sex (men), aged 18 to 64 years, with (n = 82,495) or without (n = 7,302,523) HIV. We developed log‐binomial models with cancer as the outcome stratified by symptomatic status, age, and race/ethnicity.ResultsCancer prevalence was higher in MLWH than in men without HIV (adjusted prevalence ratio [APR], 1.84; 95% confidence interval [CI], 1.78‐1.90) and was higher among those with symptomatic HIV (APR, 2.74; 95% CI, 2.52‐2.97) than among those with asymptomatic HIV (APR, 1.73; 95% CI, 1.67‐1.79). The highest APRs were observed for anal cancer in younger men, both in the symptomatic and asymptomatic groups: APR, 312.97; 95% CI, 210.27‐465.84, and APR, 482.26; 95% CI, 390.67‐595.32, respectively. In race/ethnicity strata, the highest APRs were among Hispanic men for anal cancer (APR, 198.53; 95% CI, 144.54‐272.68) and for lymphoma (APR, 9.10; 95% CI, 7.80‐10.63).ConclusionsGiven the Medicaid program's role in insuring MLWH, the current findings highlight the importance of the program's efforts to promote healthy behaviors and vaccination against human papillomavirus in all children and adolescents and to provide individualized cancer screening for MLWH.
Impact of African ancestry on the relationship between body mass index and survival in an early‐stage breast cancer trial (ECOG‐ACRIN E5103)
Authors: Ballinger Tarah J. , Jiang Guanglong , Shen Fei , Miller Kathy D. , Sledge George W. , Schneider Bryan P. 
Published: March 2022

BackgroundAfrican ancestry (AA) and obesity are associated with worse survival in early‐stage breast cancer. Obesity disproportionately affects women of AA; however, the intersection between ancestry and obesity on breast cancer outcomes remains unclear.MethodsA total of 2854 patients in the adjuvant trial E5103 were analyzed. Genetic ancestry was determined using principal components from a genome‐wide array. The impact of continuous or binary body mass index (BMI) on disease‐free survival (DFS) and overall survival (OS) was evaluated by multivariable Cox proportional hazards models in AA patients and European ancestry (EA) patients.ResultsThere were 2471 EA patients and 383 AA patients. Higher BMI was significantly associated with worse DFS and OS only in AA patients (DFS hazard ratio [HR], 1.25; 95% CI, 1.07‐1.46; OS HR, 1.38; 95% CI, 1.10‐1.73), not in EA patients (DFS HR, 0.97; 95% CI, 0.90‐1.05; OS HR, 1.03; 95% CI, 0.93‐1.14). Severe obesity (BMI ≥40) was significantly associated with worse survival in AA patients (DFS HR, 2.04; 95% CI, 1.21‐3.43; OS HR, 2.21; 95% CI, 1.03‐4.75) but had no impact on that of EA patients. In the estrogen receptor–positive (ER+) and triple‐negative breast cancer subgroups, BMI was significantly associated with worse outcomes only in those AA patients with ER+ disease. Within the AA group, BMI remained associated with worse survival regardless of the AA proportion.ConclusionsHigher BMI was statistically significantly associated with worse breast cancer outcomes in AA but not EA patients. This association was most significant for severe obesity and those with ER+ disease. These observations help define optimal populations for weight change interventions designed to affect disparities and survival in early‐stage breast cancer.Lay Summary

African ancestry and obesity are both risk factors for worse survival after early‐stage breast cancer.

Women of African descent are also disproportionately affected by obesity; however, it is unclear what impact body weight has on racial disparities in breast cancer.

Data from a large phase 3 clinical trial in high‐risk, early‐stage breast cancer were used to determine how body weight affects survival outcomes in European versus African Americans.

Study results demonstrate that a higher body mass index is associated with increased risk of breast cancer recurrence and worse survival in women of African ancestry but not in women of European ancestry.
Synthesis, Growth, Physicochemical Characterization, and Computational Studies on Aminopyridinium Chloronicotinate Single Crystal
Authors: Amudha G. , Santhakumari R. , Chandrika D. , Mugeshini S. , Rajeswari N. , Sagadevan Suresh 
Published: March 2022

AbstractAminopyridinium chloronicotinate (APCN) single crystals are grown using a slow evaporation solution growth method. The APCN crystal belongs to the monoclinic crystal system with a centrosymmetric space group P21/c, resulted from the X‐ray diffraction analysis. Powder X‐ray diffraction analysis is used to determine the crystallinity nature of grown crystals. Various functional groups in the grown crystal were identified using Fourier transform infrared spectroscopy. The optical transmittance, energy bandgap of the crystal is analyzed through UV–vis–NIR spectroscopy. The thermal stability of APCN crystal is studied by using thermogravimetric and differential thermal analysis. The mechanical property of the grown crystal is determined by the Vickers microhardness test. The density functional theory method at B3LYP with 6–31+G(d,p) basis set is used to perform the theoretical investigations in order to get the information regarding the HOMO‐LUMO, global chemical reactivity descriptors, natural bond orbital, Mulliken atomic charge, molecular electrostatic potential, and thermodynamical properties of the molecule in the gaseous state.
Metal‐Doped PdH(111) Catalysts for CO2 Reduction
Authors: Ai Changzhi , Vegge Tejs , Hansen Heine Anton 
Published: March 2022

AbstractPdH‐based catalysts hold promise for both CO2 reduction to CO and the hydrogen evolution reaction. Density functional theory is used to systematically screen for stability, activity, and selectivity of transition metal dopants in PdH. The transition metal elements Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Ru, Rh, Ag, Cd, Hf, Ta, W, and Re are doped into PdH(111) surface with six different doping configurations: single, dimer, triangle, parallelogram, island, and overlayer. We find that several dopants, such as Ti and Nb, have excellent predicted catalytic activity and CO2 selectivity compared to the pure PdH hydride. In addition, they display good stability due to their negative doping formation energy. The improved performance can be assigned to reaction intermediates forming two bonds consisting of one C−Metal and one O−Metal bond on the PdH surface, which break the scaling relations of intermediates, and thus have stronger HOCO* binding facilitating CO2 activation.
Synthesis of wideband bulk acoustic wave coupled resonator filter combined with lumped components
Authors: Li Qingwen , Li Xiuping , Xie Yuqiang , Cao Zheyan , Dong Jiarui 
Published: March 2022

SummaryA novel wideband bulk acoustic wave (BAW) coupled resonator filter (CRF) combined with external lumped inductors and capacitors is proposed. The filter synthesis method based on the Butterworth–van Dyke (BVD) model of CRF (CRF‐BVD) is also presented. To improve the synthesis accuracy, the CRF‐BVD model is modified and the CRF configuration with a single rather than the traditional multiple coupling layer is adopted in this paper. By establishing equivalence relationships between the modified CRF‐BVD model and the filter prototype synthesis network, exact CRF dimensions are solved through a set of equations without any further parameters tuning. The proposed method exhibits a maximum 37.4% (FBW) for a Chebyshev filter with 9.4‐dB return loss, which overcomes the narrowband limitation of regular BAW filters with FBW below 5%. To demonstrate the synthesis procedure, an n77 band filter with 3.723‐GHz center frequency and 24.2% FBW is designed and simulated. Good agreements are obtained among the simulation results of the prototype synthesis network, the modified CRF‐BVD model, and the co‐simulations of physical model based on the finite element method (FEM) and the CMOS 130‐nm technology.
Implementation and validation of guiding centre approximation into ERO2.0
Authors: Rode Sebastian , Romazanov Juri , Reiser Dirk , Brezinsek Sebastijan , Linsmeier Christian , Pukhov Alexander 
Published: March 2022

AbstractThe Monte‐Carlo code ERO2.0 uses full orbit resolution to follow impurity particles throughout the plasma volume to determine the local erosion and deposition fluxes on the plasma‐facing components of fusion devices in magnetic confinement fusion. To have direct comparisons to other transport codes (e.g., ASCOT and DIVIMP) and to accelerate the code, guiding centre approximation (GCA) was implemented into ERO2.0. In addition, a hybrid simulation mode for ERO2.0 was developed, in which the advantages of both full orbit resolution and guiding centre approximation are used. In typical scenarios in this simulation mode, full orbit resolution is applied exclusively near the wall region, while GCA is used everywhere else along a particle's trajectory. Special emphasis was put on the validation of the implementation by an inner‐code benchmarking to pure full orbit simulations. Analysed scenarios included test plasmas with simplified geometry and a realistic test case corresponding to a deuterium limiter plasma used in JET pulse #80319. The results of simulations performed in the hybrid simulation mode are in very good agreement to corresponding pure full orbit simulations, while a significant code speed‐up was achieved.
Evaluation of an icIEF‐MS system for comparable charge variant analysis of biotherapeutics with rapid peak identification by mass spectrometry
Authors: He Xiaoping , ElNaggar Mariam , Ostrowski Maggie A. , Guttman Andras , Gentalen Erik , Sperry Justin 
Published: March 2022

AbstractProtein therapeutics are usually produced in heterogeneous forms during bioproduction and bioprocessing. Heterogeneity results from post‐translational modifications that can yield charge variants and require characterization throughout product development and manufacturing. Isoelectric focusing (IEF) with UV detection is one of the most common methods to evaluate protein charge heterogeneity in the biopharmaceutical industry. To identify charge variant peaks, a new imaged microfluidic chip‐based isoelectric focusing (icIEF) system coupled directly to mass spectrometry was recently reported. Bridging is required to demonstrate comparability between existing and new technology. As such, here we demonstrate the comparability of the pI value measurement and relative charge species distributions between the icIEF‐MS system and the control data from a frequently utilized methodology in the biopharmaceutical industry for several blinded development‐phase biopharmaceutical monoclonal antibodies across a wide pI range of 7.3–9.0. Hyphenation of the icIEF system with mass spectrometry enabled direct and detailed structural determination of a test molecule, with masses suggesting acidic and basic shifts are caused by sialic acid additions and the presence of unprocessed lysine residues. In addition, MS analysis further identified several low‐abundance glycoforms. The icIEF‐MS system provides sample quantification, characterization, and identification of mAb proteoforms without sacrificing icIEF quantification comparability or speed.