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https://www.readbyqxmd.com/read/28934742/elevated-apoptosis-in-the-liver-of-dairy-cows-with-ketosis
#1
Xiliang Du, Liang Chen, Dan Huang, Zhicheng Peng, Chenxu Zhao, Yuming Zhang, Yiwei Zhu, Zhe Wang, Xinwei Li, Guowen Liu
BACKGROUND/AIMS: Dairy cows with ketosis are characterized by oxidative stress and hepatic damage. The aim of this study was to investigate hepatic oxidative stress and the apoptotic status of ketotic cows, as well as the underlying apoptosis pathway. METHODS: The blood aspartate aminotransferase (AST), alanine aminotransferase (ALT), glutamate dehydrogenase (GLDH) and gamma-glutamyl transferase (GGT) activities and the haptoglobin (HP), serum amyloid A (SAA) and serum apoptotic cytokeratin 18 neo-epitope M30 (CK18 M30) concentrations were determined by commercially available kits and ELISA kits, respectively...
September 21, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28934484/regulation-of-hur-structure-and-function-by-dihydrotanshinone-i
#2
Preet Lal, Linda Cerofolini, Vito Giuseppe D'Agostino, Chiara Zucal, Carmelo Fuccio, Isabelle Bonomo, Erik Dassi, Stefano Giuntini, Danilo Di Maio, Vikalp Vishwakarma, Ranjan Preet, Sha Neisha Williams, Max S Fairlamb, Rachel Munk, Elin Lehrmann, Kotb Abdelmohsen, Saioa R Elezgarai, Claudio Luchinat, Ettore Novellino, Alessandro Quattrone, Emiliano Biasini, Leonardo Manzoni, Myriam Gorospe, Dan A Dixon, Pierfausto Seneci, Luciana Marinelli, Marco Fragai, Alessandro Provenzani
The Human antigen R protein (HuR) is an RNA-binding protein that recognizes U/AU-rich elements in diverse RNAs through two RNA-recognition motifs, RRM1 and RRM2, and post-transcriptionally regulates the fate of target RNAs. The natural product dihydrotanshinone-I (DHTS) prevents the association of HuR and target RNAs in vitro and in cultured cells by interfering with the binding of HuR to RNA. Here, we report the structural determinants of the interaction between DHTS and HuR and the impact of DHTS on HuR binding to target mRNAs transcriptome-wide...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934217/elevated-humoral-response-to-cytomegalovirus-in-hiv-infected-individuals-with-poor-cd4-t-cell-immune-recovery
#3
Elisabet Gómez-Mora, Marta Massanella, Elisabet García, David Giles, Marta Bernadó, Victor Urrea, Jorge Carrillo, Dan Ouchi, Jordi Puig, Eugenia Negredo, Bonaventura Clotet, Julià Blanco, Cecilia Cabrera
Some HIV-infected c-ART-suppressed individuals show incomplete CD4+ T-cell recovery, abnormal T-cell activation and higher mortality. One potential source of immune activation could be coinfection with cytomegalovirus (CMV). IgG and IgM levels, immune activation, inflammation and T-cell death in c-ART-suppressed individuals with CD4+ T-cell counts >350 cells/μL (immunoconcordant, n = 133) or <350 cells/μL (immunodiscordant, n = 95) were analyzed to evaluate the effect of CMV humoral response on immune recovery...
2017: PloS One
https://www.readbyqxmd.com/read/28934205/a-rab5-gtpase-module-is-important-for-autophagosome
#4
Fan Zhou, Shenshen Zou, Yong Chen, Zhanna Lipatova, Dan Sun, Xiaolong Zhu, Rui Li, Zulin Wu, Weiming You, Xiaoxia Cong, Yiting Zhou, Zhiping Xie, Valeriya Gyurkovska, Yutao Liu, Qunli Li, Wenjing Li, Jie Cheng, Yongheng Liang, Nava Segev
In the conserved autophagy pathway, the double-membrane autophagosome (AP) engulfs cellular components to be delivered for degradation in the lysosome. While only sealed AP can productively fuse with the lysosome, the molecular mechanism of AP closure is currently unknown. Rab GTPases, which regulate all intracellular trafficking pathways in eukaryotes, also regulate autophagy. Rabs function in GTPase modules together with their activators and downstream effectors. In yeast, an autophagy-specific Ypt1 GTPase module, together with a set of autophagy-related proteins (Atgs) and a phosphatidylinositol-3-phosphate (PI3P) kinase, regulates AP formation...
September 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28934147/effects-of-precipitant-and-ph-on-coprecipitation-of-nanosized-co-cr-v-alloy-powders
#5
Xiaoyu Chen, Yongxia Li, Lan Huang, Dan Zou, Enxi Wu, Yanjun Liu, Yuanyan Xie, Rui Yao, Songyi Liao, Guangrong Wang, Feng Zheng
Nanosized Co-Cr-V alloy powders were synthesized via coprecipitation method. Effects of precipitants ((NH₄)₂C₂O₄·H₂O and Na₂CO₃) and pH were investigated by X-ray diffraction (XRD), Zeta potential analyzer, thermogravimetry-differential scanning calorimetry (TG-DSC), inductively coupled plasma-atomic emission spectrometry (ICP-AES) and scanning electron microscopy (SEM). Co-Cr-V alloy powders were consisted of major face-centered cubic Co (fcc Co) and minor hexagonal close-packed Co (hcp Co)...
September 21, 2017: Materials
https://www.readbyqxmd.com/read/28934106/biosensor-technology-reveals-the-disruption-of-the-endothelial-barrier-function-and-the-subsequent-death-of-blood-brain-barrier-endothelial-cells-to-sodium-azide-and-its-gaseous-products
#6
Dan T Kho, Rebecca H Johnson, Simon J O'Carroll, Catherine E Angel, E Scott Graham
Herein we demonstrate the sensitive nature of human blood-brain barrier (BBB) endothelial cells to sodium azide and its gaseous product. Sodium azide is known to be acutely cytotoxic at low millimolar concentrations, hence its use as a biological preservative (e.g., in antibodies). Loss of barrier integrity was noticed in experiments using Electric Cell-substrate Impedance Sensing (ECIS) biosensor technology, to measure endothelial barrier integrity continuously in real-time. Initially the effect of sodium azide was observed as an artefact where it was present in antibodies being employed in neutralisation experiments...
September 21, 2017: Biosensors
https://www.readbyqxmd.com/read/28934100/differences-in-the-movement-skills-and-physical-qualities-of-elite-senior-academy-rugby-league-players
#7
Matthew R E Ireton, Kevin Till, Dan Weaving, Ben Jones
The aim of the present study was to investigate (a) the differences in the movement skills and physical qualities between academy and senior rugby league players, and (b) the relationships between movement skills and physical qualities. Fifty-five male rugby league players (Senior, n=18; Under 19 n=23; Under 16, n=14) undertook a physical testing battery including anthropometric (stature & body mass), strength (isometric mid-thigh pull; IMTP) and power (countermovement jump; CMJ) qualities, alongside the athletic ability assessment (AAA; comprised of overhead squat, double lunge, single-leg Romanian deadlift, press-up and pull-up exercises)...
June 2, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28934078/abnormal-white-matter-microstructure-among-early-adulthood-smokers-a-tract-based-spatial-statistics-study
#8
Shuangkun Wang, Long Zuo, Tao Jiang, Peng Peng, Shuilian Chu, Dan Xiao
Objectives Cigarette smoking is an important risk factor of central nervous system diseases. However, the white matter (WM) integrity of early adulthood chronic smokers has not been attached enough importance to as it deserves, and the relationship between the chronic smoking effect and the WM is still unclear. The purpose of this study was to investigate whole - brain WM microstructure of early adulthood smokers and explore the structural correlates of behaviorally relevant features of the disorder. Methods We compared multiple DTI-derived indices, including fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD) and radial diffusivity (RD), between early adulthood smokers (n = 19) and age-, education- and gender-matched controls (n = 23) using a whole-brain tract-based spatial statistics approach...
September 21, 2017: Neurological Research
https://www.readbyqxmd.com/read/28933966/mobile-laser-indirect-ophthalmoscope-for-the-induction-of-choroidal-neovascularization-in-a-mouse-model
#9
Dov Weinberger, Elite Bor-Shavit, Tilda Barliya, Mor Dahbash, Opher Kinrot, Dan D Gaton, Yael Nisgav, Tami Livnat
PURPOSE: This study aims to evaluate and standardize the reliability of a mobile laser indirect ophthalmoscope in the induction of choroidal neovascularization (CNV) in a mouse model. MATERIALS & METHODS: A diode laser indirect ophthalmoscope was used to induce CNV in pigmented male C57BL/6J mice. Standardization of spot size and laser intensity was determined using different aspheric lenses with increasing laser intensities applied around the optic disc. Development of CNV was evaluated 1, 5, and 14 days post laser application using fluorescein angiography (FA), histology, and choroidal flat mounts stained for the endothelial marker CD31 and FITC-dextran...
September 21, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28933779/genetically-encoded-releasable-photo-cross-linking-strategies-for-studying-protein-protein-interactions-in-living-cells
#10
Yi Yang, Haiping Song, Dan He, Shuai Zhang, Shizhong Dai, Xiao Xie, Shixian Lin, Ziyang Hao, Huangtao Zheng, Peng R Chen
Although protein-protein interactions (PPIs) have crucial roles in virtually all cellular processes, the identification of more transient interactions in their biological context remains challenging. Conventional photo-cross-linking strategies can be used to identify transient interactions, but these approaches often suffer from high background due to the cross-linked bait proteins. To solve the problem, we have developed membrane-permeable releasable photo-cross-linkers that allow for prey-bait separation after protein complex isolation and can be installed in proteins of interest (POIs) as unnatural amino acids...
October 2017: Nature Protocols
https://www.readbyqxmd.com/read/28933315/massilia-buxea-sp-nov-isolated-from-a-rock-surface
#11
Le-Ni Sun, En-Dong Yang, Dan-Xi Cui, Ye-Wen Ni, Yu-Bo Wang, Dong-Dong Sun, Wei-Yun Wang
A Gram-stain-negative, rod-shaped and motile bacterial strain, designated A9T, was isolated from the surface of rock collected from the shore of Nvshan lake in Mingguang, Anhui province, China. Phylogenetic analysis based on 16S rDNA sequence data showed that strain A9T was affiliated with the genus Massilia and showed the highest sequence similarities to Massilia plicata KCTC 12344T (98.8 %) and Massilia lurida CGMCC 1.10822T (97.9 %). The major fatty acids (>5 %) were summed feature 3 (C16 : 1ω7c and/or C15 : 0 iso 2-OH), C16 : 0 and C18 : 1ω7c...
September 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28933259/potential-therapeutic-implications-of-mirnas-in-osteosarcoma-chemotherapy
#12
Dan Chen, Ding Liu, Zhiwei Chen
Osteosarcoma is the most common primary bone cancer in young adults and adolescents. Drug resistance is the main cause leading to therapeutical failure. The mechanisms of drug resistance of osteosarcoma have not been fully understood. Notably, recent researches associate microRNA with drug resistance in osteosarcoma cells, raising the awareness that targeting microRNAs may help in chemotherapy success. In this review, we summarize the mechanisms linking microRNAs to drug resistance and ongoing researches on microRNAs in drug response to osteosarcoma...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28933125/-analysis-of-diemailing-kudiezi-injection-use-in-real-world-in-7-189-patients-with-cerebral-infarction
#13
Xing Liao, Yin Zhang, Yan-Ming Xie, Yan Liu, Dan-Hui Yi, Yi-Li Zhang, Feng Chen
This is a study based on hospital intensive monitoring to explore medication use of Diemailing Kudiezi injection(one Chinese herbal medicine injection) in real word in the patients with cerebral infarction. The active monitoring model was adopted and hospital intensive monitoring on safety of 7 189 cases of patients with cerebral infarction was conducted to obtain the drug use information of Diemailing injection. The results were analyzed by using statistical description and association rule method. The statistical description and association rule analysis were conducted based on patients' basic demographic characteristics, use of Diemailing injection and combined use of drugs...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28933095/-investigation-of-effects-of-albiflorin-and-paeoniflorin-on-hippocampal-bdnf-and-no-in-chronic-restraint-stress-rats
#14
Ying-Li Zhu, Lin-Yuan Wang, Cheng-Long Wang, Dan-Ping Zhao, Sha Wang, Wen-Ting Fei, Jian-Jun Zhang
This paper aimed to investigate the antidepressant-like effects and the mechanism of the albiflorin, paeoniflorin on rats with chronic restraint stress model. Fluoxetine and Xiaoyao group served as the positive control, body weight, sucrose preference test and the open field behavioral experiment were measured, the levels of nitric oxide (NO) in hippocampus were detected by Greg colorimetric method. Furthermore, the levels of brain derived neurotrophic factor (BDNF) in hippocampus were detected by ELISA. Finally, the expressions of nNOS mRNA in hippocampus detected by RT-qPCR, the protein levels of nNOS and BDNF in hippocampus were detected by Western blot...
November 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28932671/controlling-energy-radiations-of-electromagnetic-waves-via-frequency-coding-metamaterials
#15
Haotian Wu, Shuo Liu, Xiang Wan, Lei Zhang, Dan Wang, Lianlin Li, Tie Jun Cui
Metamaterials are artificial structures composed of subwavelength unit cells to control electromagnetic (EM) waves. The spatial coding representation of metamaterial has the ability to describe the material in a digital way. The spatial coding metamaterials are typically constructed by unit cells that have similar shapes with fixed functionality. Here, the concept of frequency coding metamaterial is proposed, which achieves different controls of EM energy radiations with a fixed spatial coding pattern when the frequency changes...
September 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28932643/clinical-relevance-of-tumor-infiltrating-lymphocytes-pd-l1-expression-and-correlation-with-hpv-p16-in-head-and-neck-cancer-treated-with-bio-or-chemo-radiotherapy
#16
Dan Ou, Julien Adam, Ingrid Garberis, Pierre Blanchard, France Nguyen, Antonin Levy, Odile Casiraghi, Philippe Gorphe, Ingrid Breuskin, François Janot, Stephane Temam, Jean-Yves Scoazec, Eric Deutsch, Yungan Tao
To investigate the prognostic value of tumor infiltrating lymphocytes (TILs: CD8+ and FoxP3+), and PD-L1 expression in patients with head and neck squamous cell carcinoma (HNSCC) treated with radiotherapy combined with cisplatin (CRT) or cetuximab (BRT). Immunohistochemistry for CD8, FoxP3 was performed on pretreatment tissue samples of 77 HNSCC patients. PD-L1 results were evaluable in 38 patients. Cox regression analysis was used to analyze the correlations of these biomarkers expression with clinicopathological characteristics and treatment outcomes...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28932330/is-male-rheumatoid-arthritis-an-occupational-disease-a-review
#17
Dan Murphy, David Hutchinson
BACKGROUND: Rheumatoid arthritis (RA) is a systemic, inflammatory disease with an estimated global prevalence of 0.3-1.0%. An unexplained association exists between low formal education and the development of RA independent of smoking. It is established that RA is initiated in the lungs and that various occupations associated with dust, fume and metal inhalation can increase the risk of RA development. OBJECTIVE: The objective of this review is to evaluate published clinical reports related to occupations associated with RA development...
2017: Open Rheumatology Journal
https://www.readbyqxmd.com/read/28932198/progress-and-prospects-of-crispr-cas-systems-in-insects-and-other-arthropods
#18
REVIEW
Dan Sun, Zhaojiang Guo, Yong Liu, Youjun Zhang
Clustered regularly interspaced short palindromic repeats (CRISPR) and the CRISPR-associated gene Cas9 represent an invaluable system for the precise editing of genes in diverse species. The CRISPR/Cas9 system is an adaptive mechanism that enables bacteria and archaeal species to resist invading viruses and phages or plasmids. Compared with zinc finger nucleases and transcription activator-like effector nucleases, the CRISPR/Cas9 system has the advantage of requiring less time and effort. This efficient technology has been used in many species, including diverse arthropods that are relevant to agriculture, forestry, fisheries, and public health; however, there is no review that systematically summarizes its successful application in the editing of both insect and non-insect arthropod genomes...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28931947/cytochalasan-and-tyrosine-derived-alkaloids-from-the-marine-sediment-derived-fungus-westerdykella-dispersa-and-their-bioactivities
#19
Dan Xu, Minghe Luo, Fenglou Liu, Dong Wang, Xuejiao Pang, Ting Zhao, Lulin Xu, Xia Wu, Mingyu Xia, Xiaolong Yang
Six new cytochalasans, designated as 18-oxo-19,20-dihydrophomacin C (1), 18-oxo-19-methoxy-19,20- dihydrophomacin C (2), 18-oxo-19-hydroxyl-19,20-dihydrophomacin C (3), 19,20-dihydrophomacin C (4), 19-methoxy-19,20-dihydrophomacin C (5), 19-hydroxyl-19,20-dihydrophomacin C (6), and one new tyrosine-derived alkaloid named as gymnastatin Z (8), together with two known compounds, phomacin B (7) and triticone D (9), were isolated from a solid-substrate fermentation culture of Westerdykella dispersa which was derived from marine sediments...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931655/protection-against-a-mixed-shiv-challenge-by-a-broadly-neutralizing-antibody-cocktail
#20
Boris Julg, Po-Ting Liu, Kshitij Wagh, William M Fischer, Peter Abbink, Noe B Mercado, James B Whitney, Joseph P Nkolola, Katherine McMahan, Lawrence J Tartaglia, Erica N Borducchi, Shreeya Khatiwada, Megha Kamath, Jake A LeSuer, Michael S Seaman, Stephen D Schmidt, John R Mascola, Dennis R Burton, Bette T Korber, Dan H Barouch
HIV-1 sequence diversity presents a major challenge for the clinical development of broadly neutralizing antibodies (bNAbs) for both therapy and prevention. Sequence variation in critical bNAb epitopes has been observed in most HIV-1-infected individuals and can lead to viral escape after bNAb monotherapy in humans. We show that viral sequence diversity can limit both the therapeutic and prophylactic efficacy of bNAbs in rhesus monkeys. We first demonstrate that monotherapy with the V3 glycan-dependent antibody 10-1074, but not PGT121, results in rapid selection of preexisting viral variants containing N332/S334 escape mutations and loss of therapeutic efficacy in simian-HIV (SHIV)-SF162P3-infected rhesus monkeys...
September 20, 2017: Science Translational Medicine
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