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https://www.readbyqxmd.com/read/28927259/generation-diversity-determination-and-application-to-antibody-selection-of-a-human-na%C3%A3-ve-fab-library
#1
Sangkyu Kim, Insoo Park, Seung Gu Park, Seulki Cho, Jin Hong Kim, Nagesh S Ipper, Sun Shim Choi, Eung Suk Lee, Hyo Jeong Hong
We constructed a large naïve human Fab library (3 x 1010 colonies) from the lymphocytes of 809 human donors, assessed available diversities of the heavy-chain variable (VH) and κ light-chain variable (VK) domain repertoires, and validated the library by selecting Fabs against 10 therapeutically relevant antigens by phage display. We obtained a database of unique 7,373 VH and 41,804 VK sequences by 454 pyrosequencing, and analyzed the repertoires. The distribution of VH and VK subfamilies and germline genes in our antibody repertoires slightly differed from those in earlier published natural antibody libraries...
September 20, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28926883/-etiological-analysis-and-in-vitro-drug-sensitivity-of-bacterial-keratitis-in-northern-china-in-the-period-of-2006-2015
#2
Y Zhang, Z Q Wang, X G Sun
Objective: To analyze the etiology and drug sensitivity of bacterial keratitis and their changes, and to provide evidence for treatment and drug selection of bacterial keratitis. Methods: Retrospective case series study. From January 2006 to December 2015, corneal specimens suspected of bacterial infection were collected and cultured in Beijing Tongren Eye Center. General information of patients, etiological results and drug sensitivity test results were summarized and analyzed. The Chi-square test and Spearman correlation analysis were performed using SPSS 20...
September 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28926626/do-privacy-and-security-regulations-need-a-status-update-perspectives-from-an-intergenerational-survey
#3
Stacey Pereira, Jill Oliver Robinson, Hayley A Peoples, Amanda M Gutierrez, Mary A Majumder, Amy L McGuire, Mark A Rothstein
BACKGROUND: The importance of health privacy protections in the era of the "Facebook Generation" has been called into question. The ease with which younger people share personal information about themselves has led to the assumption that they are less concerned than older generations about the privacy of their information, including health information. We explored whether survey respondents' views toward health privacy suggest that efforts to strengthen privacy protections as health information is moved online are unnecessary...
2017: PloS One
https://www.readbyqxmd.com/read/28926047/simple-znet2-as-a-catalyst-in-carbodiimide-hydroalkynylation-structural-and-mechanistic-studies
#4
Antonio Martínez, Sonia Moreno-Blázquez, Antonio Rodríguez-Diéguez, Alberto Ramos, Rafael Fernández-Galán, Antonio Antiñolo, Fernando Carrillo-Hermosilla
Expanding the possibilities of the use of simple and available ZnEt2 as a catalyst, the hydroalkynylation of carbodiimides with a variety of alkynes to obtain unsaturated substituted amidines is described in this work. Different stoichiometric studies allow proposing that amidinate complexes are intermediates in this catalytic process, produced by easy activation of the C-H bond of the alkyne and formation of alkynyl derivatives followed by a carbodiimide insertion step. Kinetics studies allowed the generation of a rate law for the hydroalkynylation of N,N'-diisopropylcarbodiimide with phenylacetylene which is second order in [carbodiimide], first order in [catalyst] and zero order in [alkyne], with a negligible PhC[triple bond, length as m-dash]CH/PhC[triple bond, length as m-dash]CD isotopic effect, consistent with a rate-determining state involving carbodiimide insertion...
September 19, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28925691/core-shell-mn7%C3%A2-mn-cd-12-assembled-from-core-mn7-disc
#5
Ling-Yu Guo, Hai-Feng Su, Mohamedally Kurmoo, Chen-Ho Tung, Di Sun, Lan-Sun Zheng
Post-synthetic decoration of the Mn7, {MnIII⊆MnII6}, core with CdII in the outer shell to form the next generation Mn13Cd6, {MnIII⊆MnIII3MnII3⊆ MnII6CdII6}, core-shell disc was achieved and confirmed by single-crystal X-ray diffraction. The formation of Mn13Cd6 has only been successful with Cd2+ and if the Cd salt is added within the first half hour window when the inner Mn7 has formed. EDX and ICP-AES gave the accurate content and confirm the average found by X-ray diffraction. HR-ESI-MS was even more precise by revealing three prominent molecular species, Mn13Cd6, Mn14Cd5 and Mn15Cd4, having a distribution of metals...
September 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28925496/study-on-the-relationship-between-the-rassf10-gene-and-the-biological-behavior-of-hepatocellular-carcinoma-cells
#6
J Xie, Y Chen, F Meng, T Shu, Y Liu, L Zhang, Z-X Zhang
OBJECTIVE: To investigate the relationship between Ras association domain family gene 10 (RASSF10 gene) and the biological behavior of hepatocellular carcinoma (HCC), including proliferation, invasion, and metastasis. MATERIALS AND METHODS: HCC cell lines were generated with stable overexpression or low expression of RASSF10 protein. A cell line transfected with an empty vector was treated as control. At 12, 24, 48, and 72 h, the cell proliferation was determined by MTT assay, the invasion ability was determined by Transwell chambers, and the scratch assay was used to assess the migration ability...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28925467/effects-of-rosuvastatin-on-pentraxin-3-level-and-platelet-aggregation-rate-in-elderly-patients-with-acute-myocardial-infarction-undergoing-elective-interventional-therapy-a-double-blind-controlled-study
#7
Y-H Li, L-H Wang, Q Li, D-W Yu, Y-S Gai, S-X Cai, F Tian, H-Y Zhou
OBJECTIVE: To investigate clinical effects of rosuvastatin on blood lipid levels, hemorheological profiles, vascular endothelial function, pentraxin 3 (PTX-3) level, the number of granule membrane glycoprotein (GMP-140) molecules and platelet aggregation rate in elderly patients with acute myocardial infarction (AMI) undergoing elective percutaneous coronary intervention (PCI). PATIENTS AND METHODS: Total of 120 elderly patients admitted with AMI undergoing elective PCI from July 2014 to January 2016 were selected...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28925367/generation-of-integration-free-induced-pluripotent-stem-cells-gzhmui001-a-by-reprogramming-peripheral-blood-mononuclear-cells-from-a-47-xxx-syndrome-patient
#8
Yuchang Chen, Zhanhui Ou, Bing Song, Yexing Xian, Shuming Ouyang, Yuhuan Xie, Yanting Xue, Xiaofang Sun
47, XXX syndrome is one of several sex-chromosomal aneuploidies, and it has an incidence of approximately 1/1000 in newborn females. Because of heterogeneity in X-inactivation, these patients may exhibit a variety of clinical symptoms. Here, we report the generation of an integration-free human induced pluripotent stem cell line (GZHMUi001-A) by using Sendai virus to reprogram peripheral blood mononuclear cells from a 47, XXX syndrome patient with premature ovarian failure. This 47, XXX iPS cell line has characteristics of pluripotent stem cells and is a useful tool for the investigation of this X chromosome aneuploid disease...
August 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28924241/clinical-impact-of-the-subclonal-architecture-and-mutational-complexity-in-chronic-lymphocytic-leukemia
#9
F Nadeu, G Clot, J Delgado, D Martín-García, T Baumann, I Salaverria, S Beà, M Pinyol, P Jares, A Navarro, H Suárez-Cisneros, M Aymerich, M Rozman, N Villamor, D Colomer, M González, M Alcoceba, M J Terol, B Navarro, E Colado, Á R Payer, X S Puente, C López-Otín, A López-Guillermo, A Enjuanes, E Campo
Genome studies of chronic lymphocytic leukemia (CLL) have revealed the remarkable subclonal heterogeneity of the tumors, but the clinical implications of this phenomenon are not well known. We assessed the mutational status of 28 CLL driver genes by deep-targeted next-generation sequencing and copy number alterations (CNA) in 406 previously untreated patients and 48 sequential samples. We detected small subclonal mutations (0.6-25% of cells) in nearly all genes (26/28), and they were the sole alteration in 22% of the mutated cases...
September 19, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28924152/second-harmonic-generation-response-in-thermally-reconstructed-multiferroic-%C3%AE-gd2-moo4-3-thin-films
#10
Emerson Coy, Piotr Graczyk, Luis Yate, Karol Załęski, Jacek Gapiński, Piotr Kuświk, Sławomir Mielcarek, Feliks Stobiecki, Bogusław Mróz, Cesar Ferrater, Stefan Jurga
Gd2(MoO4)3 (GMO) is a well-studied multiferroic material that exhibits full ferroelectric and ferroelastic behavior at room temperature. However, its difficult stabilization in thin films has prevented the study and exploitation of its multiferroic properties in different architectures. Here, we report on the study of GMO thin films deposited on Si(001) substrates by Pulsed Laser Deposition (PLD). The physicochemical properties of the films are discussed and studied. Results obtained by X-ray diffraction, X-ray photoelectron spectroscopy, high resolution transmission microscopy and second harmonic generation show that the orthorhombic (β'-GMO) multiferroic phase can be stabilized and homogenized by post deposition thermal reconstruction...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923586/genetic-code-asymmetry-supports-diversity-through-experimentation-with-posttranslational-modifications
#11
REVIEW
James W Dennis
Protein N-glycosylation has been identified in all three domains of life presumably conserved for its early role in glycoprotein folding. However, the N-glycans added to proteins in the secretory pathway of multicellular organisms are remodeling in the Golgi, increasing structural diversity exponentially and adding new layers of functionality in immunity, metabolism and other systems. The branching and elongation of N-glycan chains found on cell surface receptors generates a gradation of affinities for carbohydrate-binding proteins, the galectin, selectin and siglec families...
September 15, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28923562/intralesional-injection-of-collagenase-clostridium-histolyticum-may-increase-the-risk-of-late-onset-penile-fracture
#12
REVIEW
Jonathan A Beilan, Jared J Wallen, Adam S Baumgarten, Kevin N Morgan, Justin L Parker, Rafael E Carrion
INTRODUCTION: The use of intralesional injection of collagenase Clostridium histolyticum (CCH) has become a valid treatment option in the management of Peyronie's disease (PD). Multiple studies have shown the drug's safety and efficacy. However, sparse literature exists on the utility of the injection protocol's 14-day "observation period," in which patients are instructed to abstain from all sexual activity. AIM: To summarize the contemporary literature and report on our series of patients treated with CCH in an effort to explore the effectiveness of the postinjection observation period...
September 8, 2017: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/28923083/prevention-of-c5ar1-signaling-delays-microglial-inflammatory-polarization-favors-clearance-pathways-and-suppresses-cognitive-loss
#13
Michael X Hernandez, Shan Jiang, Tracy A Cole, Shu-Hui Chu, Maria I Fonseca, Melody J Fang, Lindsay A Hohsfield, Maria D Torres, Kim N Green, Rick A Wetsel, Ali Mortazavi, Andrea J Tenner
BACKGROUND: Pharmacologic inhibition of C5aR1, a receptor for the complement activation proinflammatory fragment, C5a, suppressed pathology and cognitive deficits in Alzheimer's disease (AD) mouse models. To validate that the effect of the antagonist was specifically via C5aR1 inhibition, mice lacking C5aR1 were generated and compared in behavior and pathology. In addition, since C5aR1 is primarily expressed on cells of the myeloid lineage, and only to a lesser extent on endothelial cells and neurons in brain, gene expression in microglia isolated from adult brain at multiple ages was compared across all genotypes...
September 18, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28923077/development-and-evaluation-of-an-efficient-heterologous-gene-knock-in-reporter-system-in-lactococcus-lactis
#14
Yifei Lu, Hongxiang Yan, Jiezhong Deng, Zhigang Huang, Xurui Jin, Yanlan Yu, Qiwen Hu, Fuquan Hu, Jing Wang
BACKGROUND: Lactococcus lactis is a food grade probiotics and widely used to express heterologous proteins. Generally, target genes are knocked into the L. lactis genome through double-crossover recombination to express heterologous proteins stably. However, creating marker-less heterologous genes knocked-in clones is laborious. In this study, an efficient heterologous gene knock-in reporter system was developed in L. lactis NZ9000. RESULTS: Our knock-in reporter system consists of a temperature-sensitive plasmid pJW and a recombinant L...
September 18, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28922396/biochemical-and-immunological-characterization-of-a-novel-monoclonal-antibody-against-mouse-leukotriene-b4-receptor-1
#15
Fumiyuki Sasaki, Tomoaki Koga, Kazuko Saeki, Toshiaki Okuno, Saiko Kazuno, Tsutomu Fujimura, Yasuyuki Ohkawa, Takehiko Yokomizo
Leukotriene B4 (LTB4) receptor 1 (BLT1) is a G protein-coupled receptor expressed in various leukocyte subsets; however, the precise expression of mouse BLT1 (mBLT1) has not been reported because a mBLT1 monoclonal antibody (mAb) has not been available. In this study, we present the successful establishment of a hybridoma cell line (clone 7A8) that produces a high-affinity mAb for mBLT1 by direct immunization of BLT1-deficient mice with mBLT1-overexpressing cells. The specificity of clone 7A8 was confirmed using mBLT1-overexpressing cells and mouse peripheral blood leukocytes that endogenously express BLT1...
2017: PloS One
https://www.readbyqxmd.com/read/28922359/a-first-linkage-map-and-downy-mildew-resistance-qtl-discovery-for-sweet-basil-ocimum-basilicum-facilitated-by-double-digestion-restriction-site-associated-dna-sequencing-ddradseq
#16
Robert Pyne, Josh Honig, Jennifer Vaiciunas, Adolfina Koroch, Christian Wyenandt, Stacy Bonos, James Simon
Limited understanding of sweet basil (Ocimum basilicum L.) genetics and genome structure has reduced efficiency of breeding strategies. This is evidenced by the rapid, worldwide dissemination of basil downy mildew (Peronospora belbahrii) in the absence of resistant cultivars. In an effort to improve available genetic resources, expressed sequence tag simple sequence repeat (EST-SSR) and single nucleotide polymorphism (SNP) markers were developed and used to genotype the MRI x SB22 F2 mapping population, which segregates for response to downy mildew...
2017: PloS One
https://www.readbyqxmd.com/read/28922141/towards-an-in-plane-methodology-to-track-breast-lesions-by-using-mammograms-and-patient-specific-finite-element-simulations
#17
Andres Lapuebla-Ferri, Jose Cegoñino-Banzo, Antonio-Jose Jimenez-Mocholi, Amaya Perez Del Palomar
In breast cancer screening or diagnosis, it is usual to combine different images in order to locate a lesion as accurately as possible. These images are generated by using a single or several imaging techniques. As X-ray based mammography is used widespread, a breast lesion is located in the same plane of the image (mammogram), but tracking of a breast lesion across mammograms corresponding to different views is a daring task for medical physicians. According to this, simulation tools and methodologies that use patient-specific numerical models can facilitate the task of fusing information from different images...
September 18, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28922040/professional-generational-and-gender-differences-in-perception-of-organisational-values-among-israeli-physicians-and-nurses-implications-for-retention
#18
Sigalit Warshawski, Sivia Barnoy, Ilya Kagan
The global health workforce today is more age diverse than ever before and spans three generations: baby boomers, X and Y generations. Each generation has a distinct set of characteristics, values, and beliefs. This diversity can lead to increased creativity and a greater richness of values and skills, but at the same time it can also lead to value clashes, disrespect, and conflicts. This study aimed to examine professional, generational, and gender differences in the perception of the importance of organisational values among nurses and physicians working in both hospitals and outpatient clinics in Israel...
September 18, 2017: Journal of Interprofessional Care
https://www.readbyqxmd.com/read/28921955/characterization-of-site-specific-glycosylation-in-influenza-a-virus-hemagglutinin-produced-by-spodoptera-frugiperda-insect-cell-line
#19
Yanjun Liu, Shiaw-Lin Wu, Kerry Routenberg Love, William S Hancock
Influenza hemagglutinin is a surface glycoprotein related to virus invasion and host immune system response. Understanding site specific glycosylation of hemagglutinin will increase our knowledge about virus evolution and can improve the design and quality of vaccines. In our study, we used glycoproteomic analysis based on multienzyme digestion followed by LC tandem MS analysis to determine the glycosylation of Influenza hemagglutinin (H1/A/California/04/2009) using the following steps: PNGaseF treatment combined with trypsin or pepsin digestion were used to determine the glycosites and glycan occupancy...
September 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28921949/effects-of-high-temperature-and-thermal-cycling-on-the-performance-of-perovskite-solar-cells-acceleration-of-charge-recombination-and-deterioration-of-charge-extraction
#20
Arif D Sheikh, Rahim Munir, Md Azimul Haque, Ashok Bera, Weijin Hu, Parvez Shaikh, Aram Amassian, Tom Wu
In this work, we investigated the effects of high operating temperature and thermal cycling on the photovoltaic performance of perovskite solar cells (PSCs) with a typical mesostructured (m)-TiO2-CH3NH3PbI3-xClx-spiro-OMeTAD architecture. After carrying out temperature-dependent grazing incidence wide-angle X-ray scattering (GIWAXS), in-situ X-ray diffraction (XRD) and optical absorption experiments, thermal durability of PSCs was tested by subjecting the devices to repetitive heating to 70 °C and cooling to room temperature (20 °C)...
September 18, 2017: ACS Applied Materials & Interfaces
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