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https://www.readbyqxmd.com/read/28098961/angiogenic-and-osteogenic-regeneration-in-rats-via-calcium-phosphate-scaffold-and-endothelial-cell-coculture-with-hbmscs-hucmscs-hipsc-mscs-and-hesc-mscs
#1
Wenchuan Chen, Xian Liu, Qianmin Chen, Chongyun Bao, Liang Zhao, Zhimin Zhu, Hockin H K Xu
Angiogenesis is a limiting factor in regenerating large bone defects. The objective of this study was to investigate angiogenic and osteogenic effects of coculture on calcium phosphate cement (CPC) scaffold using human umbilical vein endothelial cells (hUVECs) and mesenchymal stem cells (MSCs) from different origins for the first time. hUVECs were cocultured with four types of cells: human umbilical cord MSCs (hUCMSCs), human bone marrow MSCs (hBMSCs), and MSCs from induced pluripotent stem cells (hiPSC-MSCs) and embryonic stem cells (hESC-MSCs)...
January 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28098948/phosphorus-acquisition-efficiency-in-arbuscular-mycorrhizal-maize-is-correlated-with-the-abundance-of-root-external-hyphae-and-the-accumulation-of-transcripts-encoding-pht1-phosphate-transporters
#2
Ruairidh J H Sawers, Simon F Svane, Clement Quan, Mette Grønlund, Barbara Wozniak, Mesfin-Nigussie Gebreselassie, Eliécer González-Muñoz, Ricardo A Chávez Montes, Ivan Baxter, Jerome Goudet, Iver Jakobsen, Uta Paszkowski
Plant interactions with arbuscular mycorrhizal fungi have long attracted interest for their potential to promote more efficient use of mineral resources in agriculture. Their use, however, remains limited by a lack of understanding of the processes that determine the outcome of the symbiosis. In this study, the impact of host genotype on growth response to mycorrhizal inoculation was investigated in a panel of diverse maize lines. A panel of 30 maize lines was evaluated with and without inoculation with arbuscular mycorrhizal fungi...
January 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28098921/-does-less-seclusion-create-a-safer-environment-an-attempt-to-map-the-concept-of-feeling-safe
#3
C J Severs, A J K Hondius, A H Schene
The degree of restraint imposed by a psychiatrist seems to be influenced by the safety of the team. So far, there have been few attempts to map the concept of 'feeling safe'.<br/> AIM: To analyse, define and quantify the concept of 'feeling safe'.<br/> METHOD: Concept mapping involves combining, in a structured way, qualitative (item collection) and quantitative methods (multi-dimensional scaling and hierarchical clusteranalysis) with the knowledge of professionals from psychiatric practice (N=24), first on an individual basis and then as a group (N=8)...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/28098901/effect-of-evodiamine-and-berberine-on-the-interaction-between-dnmts-and-target-micrornas-during-malignant-transformation-of-the-colon-by-tgf-%C3%AE-1
#4
Chao Huang, Hong Liu, Xiu-Li Gong, Li-Yun Wu, Bin Wen
The tissue microenvironment functions as a crucial player in carcinogenesis, and transforming growth factor-β1 (TGF-β1) within the microenvironment stimulates the formation of neoplasms. Using an in vitro model of malignancy induced by TGF-β1, we assessed the effect of evodiamine and berberine on the interaction between DNA methyltransferases (DNMTs) and target microRNAs (miRNAs) in the model. Colon tissues from neonatal rats 7 days of age were cultured and malignancy was induced by TGF-β1 in vitro for 48 h, and then the tissues were respectively treated with evodiamine and berberine for 24 h...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098815/replication-fork-protection-factors-controlling-r-loop-bypass-and-suppression
#5
REVIEW
Emily Yun-Chia Chang, Peter C Stirling
Replication-transcription conflicts have been a well-studied source of genome instability for many years and have frequently been linked to defects in RNA processing. However, recent characterization of replication fork-associated proteins has revealed that defects in fork protection can directly or indirectly stabilize R-loop structures in the genome and promote transcription-replication conflicts that lead to genome instability. Defects in essential DNA replication-associated activities like topoisomerase, or the minichromosome maintenance (MCM) helicase complex, as well as fork-associated protection factors like the Fanconi anemia pathway, both appear to mitigate transcription-replication conflicts...
January 14, 2017: Genes
https://www.readbyqxmd.com/read/28098805/chemical-constituents-from-the-roots-and-rhizomes-of-asarum-heterotropoides-var-mandshuricum-and-the-in-vitro-anti-inflammatory-activity
#6
Yu Jing, Yi-Fan Zhang, Ming-Ying Shang, Guang-Xue Liu, Yao-Li Li, Xuan Wang, Shao-Qing Cai
Anti-inflammatory compounds were investigated from the ethanol extract of the roots and rhizomes of Asarum heterotropoides var. mandshuricum, a traditional Chinese medicine called Xixin and used for pain and inflammatory. Nine new compounds were isolated, including six new lignans, neoasarinin A-C (1-3), neoasarininoside A and B (4 and 5), and asarinin B (7), and one new monoterpene, asarincin A (8), two new amides, asaramid II and III (10 and 11), and one new natural monoterpene, asaricin B (9), along with 37 known compounds (6, 12-47)...
January 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28098734/multimodal-fundus-imaging-of-outer-retinal-tubulations-in-choroidal-osteoma-patients
#7
Yi Xuan, Yongjin Zhang, Min Wang, Jinli Guo, Lei Li, Wei Liu, Xiaofeng Ye
PURPOSE: To evaluate the morphological findings of outer retinal tubulations (ORTs) shown on multimodal imaging modalities in patients with choroidal osteoma. METHODS: Nineteen eyes of 17 patients with choroidal osteoma underwent full clinical and imaging assessments. Color fundus photography, spectral-domain optical coherence tomography (OCT), and en face OCT were used to identify and detect the characteristics of ORT structures, including the shape, configuration, location, and distribution in the fundus...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098505/facilitating-and-hindering-factors-for-coping-with-the-experience-of-having-a-child-with-cancer-a-lebanese-perspective
#8
Myrna A A Doumit, May Naifeh Khoury
BACKGROUND: Families with a child with cancer face significant emotional and psychosocial stressors. The frequency of childhood cancer is increasing in Lebanon with more than 282 children diagnosed each year. This condition is reported to evoke a range of challenging emotions for parents, yet no studies have been conducted on the facilitating and hindering factors that affect Lebanese parents coping with a child with cancer. OBJECTIVES: The purpose of the study was to gain an in-depth understanding of factors facilitating and hindering coping methods of Lebanese parents with a child with cancer...
January 18, 2017: Journal of Psychosocial Oncology
https://www.readbyqxmd.com/read/28098483/academic-performance-on-first-year-medical-school-exams-how-well-does-it-predict-later-performance-on-knowledge-based-and-clinical-assessments
#9
Edward Krupat, Stephen R Pelletier, Jules L Dienstag
Number of appearances in the bottom quartile of 1st-year medical school exams were used to represent the extent to which students were having academic difficulties. Medical educators have long expressed a desire to have indicators of medical student performance that have strong predictive validity. Predictors traditionally used fell into 4 general categories: demographic (e.g., gender), other background factors (e.g., college major), performance/aptitude (e.g., medical college admission test scores), and noncognitive factors (e...
January 18, 2017: Teaching and Learning in Medicine
https://www.readbyqxmd.com/read/28098398/depression-and-discrimination-in-the-lives-of-women-transgender-and-gender-liminal-people-in-ontario-canada
#10
Charmaine C Williams, Deone Curling, Leah S Steele, Margaret F Gibson, Andrea Daley, Datejie Cheko Green, Lori E Ross
This article uses an intersectionality lens to explore how experiences of race, gender, sexuality, class and their intersections are associated with depression and unmet need for mental healthcare in a population of 704 women and transgender/gender liminal people from Ontario, Canada. A survey collecting demographic information, information about mental health and use of mental healthcare services, and data for the Everyday Discrimination Scale and the PHQ-9 Questionnaire for Depression was completed by 704 people via Internet or pen-and-paper between June 2011 and June 2012...
January 18, 2017: Health & Social Care in the Community
https://www.readbyqxmd.com/read/28098323/two-dimensional-melting-of-colloids-with-long-range-attractive-interactions
#11
Di Du, Manolis Doxastakis, Elaa Hilou, Sibani Lisa Biswal
The solid-liquid melting transition in a two-dimensional (2-D) attractive colloidal system is visualized using superparamagnetic colloids that interact through a long-range isotropic attractive interaction potential, which is induced using a high-frequency rotating magnetic field. Various experiments, supported by Monte Carlo simulations, are carried out over a range of interaction potentials and densities to determine structure factors, Lindermann parameters, and translational and orientational order parameters...
January 18, 2017: Soft Matter
https://www.readbyqxmd.com/read/28098305/phase-behaviour-and-temperature-responsive-properties-of-a-gemini-surfactant-brij-30-water-system
#12
Chuanhong Han, Yan Guo, Xiaoxiao Chen, Meihuan Yao, Yingtian Zhang, Qirui Zhang, Xilian Wei
The phase behaviour of a ternary system composed of cationic gemini surfactant 2-hydroxypropyl-1,3-bis(myristyldimethylammonium chloride) (14-3(OH)-14(2Cl)), nonionic surfactant polyoxyethylene laurel ether (C12H25(OCH2CH2)10OH, Brij-30) and H2O was studied and its phase diagram was determined. In several different phase regions identified in the phase diagram, the viscoelastic worm-like micellar solution region was investigated. The focus of the investigation was the increase in the viscosity of the micellar solution with the temperature and the Brij-30 content, as suggested by a partial region of the triangular phase diagram...
January 18, 2017: Soft Matter
https://www.readbyqxmd.com/read/28098263/a-lab-on-a-chip-for-monolith-based-preconcentration-and-electrophoresis-separation-of-phosphopeptides
#13
Monica Araya-Farias, Szymon Dziomba, Benjamin Carbonnier, Mohamed Guerrouache, Ichraf Ayed, Nacera Aboud, Myriam Taverna, N Thuy Tran
A microdevice combining online preconcentration and separation of phosphopeptides was developed in a glass microchip. An ethylene glycol methacrylate phosphate (EGMP), acrylamide (AM) and bisacrylamide (BAA) based monolith was synthesized within microchannels through a photo-driven process. Morphological investigations revealed a homogeneous monolithic structure composed of uniform nodules (∼0.8 μm), with a large pore volume (0.62 cm(3) g(-1)) and sufficiently high specific surface area (34.1 m(2) g(-1))...
January 18, 2017: Analyst
https://www.readbyqxmd.com/read/28098260/hepatitis-b-virus-x-protein-is-capable-of-down-regulating-protein-level-of-host-antiviral-protein-apobec3g
#14
Ruidong Chen, Xue Zhao, Yongxiang Wang, Youhua Xie, Jing Liu
The apolipoprotein B mRNA editing catalytic polypeptide-like (APOBEC) family proteins bind RNA and single-stranded DNA, and create C-to-U base modifications through cytidine deaminase activity. APOBEC3G restricts human immunodeficiency virus 1 (HIV-1) infection by creating hypermutations in proviral DNA, while HIV-1-encoded vif protein antagonizes such restriction by targeting APOBEC3G for degradation. APOBEC3G also inhibits hepatitis B virus (HBV): APOBEC3G co-expression inhibits HBV replication and evidences exist indicating APOBEC3G-mediated HBV hypermutations in patients...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098238/expression-of-the-novel-maternal-centrosome-assembly-factor-wdr8-is-required-for-vertebrate-embryonic-mitoses
#15
Daigo Inoue, Manuel Stemmer, Thomas Thumberger, Thomas Ruppert, Felix Bärenz, Joachim Wittbrodt, Oliver J Gruss
The assembly of the first centrosome occurs upon fertilisation when male centrioles recruit pericentriolar material (PCM) from the egg cytoplasm. The mechanisms underlying the proper assembly of centrosomes during early embryogenesis remain obscure. We identify Wdr8 as a novel maternally essential protein that is required for centrosome assembly during embryonic mitoses of medaka (Oryzias latipes). By CRISPR-Cas9-mediated knockout, maternal/zygotic Wdr8-null (m/zWdr8(-/-)) blastomeres exhibit severe defects in centrosome structure that lead to asymmetric division, multipolar mitotic spindles and chromosome alignment errors...
January 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28098104/evaluation-of-arterial-stiffness-in-nondiabetic-chronic-kidney-disease-patients
#16
Bodanapu Mastanvalli, Kolla Praveen Kumar, Desai Madhav, P L Venkata Pakki Reddy, Shaik Mahaboob Vali
Chronic kidney disease (CKD) is a growing problem worldwide. Clinical and epidemiologic studies have shown that structural and functional changes that occur in major arteries are a major contributing factor to the high mortality in uremic patients. Recent studies have shown a stepwise increase of the carotid-femoral pulse wave velocity (cfPWV) from CKD Stage 1 to Stage 5. We evaluated the cfPWV and augmentation index (AIx), as indirect markers of arterial stiffness in patients with nondiabetic CKD and compared the values with normal population; we also evaluated the relationship between various stages of CKD and arterial stiffness markers...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28097905/discovery-of-novel-dual-inhibitors-of-receptor-tyrosine-kinases-egfr-and-igf-1r
#17
Cornelius Hempel, Frank Totzke, Christoph Schächtele, Abdulkarim Najjar, Wolfgang Sippl, Christoph Ritter, Andreas Hilgeroth
Novel 4-benzylamino benzo-anellated pyrrolo[2,3-b]pyridines have been synthesized with varied substitution patterns both at the molecular scaffold of the benzo-anellated ring and at the 4-benzylamino residue. With a structural similarity to substituted thieno[2,3-d]pyrimidines as epidermal growth factor receptor (EGFR) inhibitors, we characterized the inhibition of EGFR for our novel compounds. As receptor heterodimerization gained certain interest as mechanism of cancer cells to become resistant against novel protein kinase inhibitors, we additionally measured the inhibition of insulin-like growth factor receptor IGF-1R which is a prominent receptor for such heterodimerizations with EGFR...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28097865/molecular-requirements-of-high-fidelity-replication-competent-dna-backbones-for-orthogonal-chemical-ligation
#18
Arun Shivalingam, Agnes E S Tyburn, Afaf H El-Sagheer, Tom Brown
The molecular properties of the phosphodiester backbone that made it the evolutionary choice for the enzymatic replication of genetic information are not well understood. To address this, and to develop new chemical ligation strategies for assembly of biocompatible modified DNA, we have synthesized oligonucleotides containing several structurally and electronically varied artificial linkages. This has yielded a new highly promising ligation method based on amide backbone formation that is chemically orthogonal to CuAAC "click" ligation...
January 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28097787/a-ternary-solvent-method-for-large-sized-two-dimensional-perovskites
#19
Junnian Chen, Lin Gan, Fuwei Zhuge, Huiqiao Li, Jizhong Song, Haibo Zeng, Tianyou Zhai
Recent reports demonstrate that a two-dimensional (2D) structural characteristic can endow perovskites with both remarkable photoelectric conversion efficiency and high stability, but the synthesis of ultrathin 2D perovskites with large sizes by facile solution methods is still a challenge. Reported herein is the controlled growth of 2D (C4 H9 NH3 )2 PbBr4 perovskites by a chlorobenzene-dimethylformide-acetonitrile ternary solvent method. The critical factors, including solvent volume ratio, crystallization temperature, and solvent polarity on the growth dynamics were systematically studied...
January 18, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28097734/how-lay-people-understand-and-make-sense-of-personalized-disease-risk-information
#20
Olga C Damman, Nina M M Bogaerts, Maaike J van den Haak, Danielle R M Timmermans
BACKGROUND: Disease risk calculators are increasingly web-based, but previous studies have shown that risk information often poses problems for lay users. OBJECTIVE: To examine how lay people understand the result derived from an online cardiometabolic risk calculator. DESIGN: A qualitative study was performed, using the risk calculator in the Dutch National Prevention Program for cardiometabolic diseases. The study consisted of three parts: (i) attention: completion of the risk calculator while an eye tracker registered eye movements; (ii) recall: completion of a recall task; and (iii) interpretation: participation in a semi-structured interview...
January 17, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
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