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https://www.readbyqxmd.com/read/28340489/mir-34a-3p-alters-proliferation-and-apoptosis-of-meningioma-cells-in-vitro-and-is-directly-targeting-smad4-frat1-and-bcl2
#1
Tamara V Werner, Martin Hart, Ruth Nickels, Yoo-Jin Kim, Michael D Menger, Rainer M Bohle, Andreas Keller, Nicole Ludwig, Eckart Meese
Micro (mi)RNAs are short, noncoding RNAs and deregulation of miRNAs and their targets are implicated in tumor generation and progression in many cancers. Meningiomas are mostly benign, slow growing tumors of the central nervous system with a small percentage showing a malignant phenotype.Following in silico prediction of potential targets of miR-34a-3p, SMAD4, FRAT1, and BCL2 have been confirmed as targets by dual luciferase assays with co-expression of miR-34a-3p and reporter gene constructs containing the respective 3'UTRs...
March 23, 2017: Aging
https://www.readbyqxmd.com/read/28340083/evaluating-the-patterns-of-aging-related-tau-astrogliopathy-unravels-novel-insights-into-brain-aging-and-neurodegenerative-diseases
#2
Gabor G Kovacs, John L Robinson, Sharon X Xie, Edward B Lee, Murray Grossman, David A Wolk, David J Irwin, Dan Weintraub, Christopher F Kim, Theresa Schuck, Ahmed Yousef, Stephanie T Wagner, Eunran Suh, Vivianna M Van Deerlin, Virginia M-Y Lee, John Q Trojanowski
The term "aging-related tau astrogliopathy" (ARTAG) describes pathological accumulation of abnormally phosphorylated tau protein in astrocytes. We evaluated the correlates of ARTAG types (i.e., subpial, subependymal, white and gray matter, and perivascular) in different neuroanatomical regions. Clinical, neuropathological, and genetic (eg, APOE ε4 allele, MAPT H1/H2 haplotype) data from 628 postmortem brains from subjects were investigated; most of the patients had been longitudinally followed at the University of Pennsylvania...
March 14, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28339770/characterization-of-indigenous-aseel-chicken-breed-for-morphological-growth-production-and-meat-composition-traits-from-india
#3
U Rajkumar, S Haunshi, C Paswan, M V L N Raju, S V Rama Rao, R N Chatterjee
Aseel is an important native chicken breed of India, known for its martial qualities (aggressive fighting abilities), pugnacity, and majestic gait. The aim of the study is to conserve and characterize the Aseel germplasm, which is considered to be endangered. The birds were maintained on deep litter under a simulated backyard type of housing having night shelter and a free-range area. A total of 313 chicks produced in the second generation from the flock collected from native tract in Andhra Pradesh was characterized for morphological, growth, production, and meat quality parameters...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339732/exploring-the-in-vivo-digestion-of-plant-proteins-in-broiler-chickens
#4
E Recoules, H Sabboh-Jourdan, A Narcy, M Lessire, G Harichaux, V Labas, M J Duclos, S Réhault-Godbert
The use of various protein sources (industry by-products, proteaginous) in poultry diets requires a greater understanding of protein digestion mechanisms. The aim of this study was to characterize the molecular actors required for protein digestion in broilers fed 4 different diets containing soybean meal, rapeseed meal, pea, or corn distiller's dried grain with solubles as the only protein source. The digesta of the digestive tract segments were collected and soluble proteins were analyzed by SDS-PAGE. SDS-PAGE analyses revealed 5 ubiquitous bands in digesta of all digestive tract segments regardless of the diet, whereas 3 bands were diet-specific...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339599/a-single-nucleotide-polymorphism-in-coq9-affects-mitochondrial-and-ovarian-function-and-fertility-in-holstein-cows%C3%A2
#5
M Sofia Ortega, Stephanie Wohlgemuth, Paula Tribulo, Luiz G B Siqueira, Daniel J Null, John B Cole, Marcus V Da Silva, Peter J Hansen
A single missense mutation at position 159 of coenzyme Q9 (COQ9) (G→A; rs109301586) has been associated with genetic variation in fertility in Holstein cattle, with the A allele associated with higher fertility. COQ9 is involved in the synthesis of coenzyme COQ10, a component of the electron transport system of the mitochondria. Here we tested whether reproductive phenotype is associated with the mutation and evaluated functional consequences for cellular oxygen metabolism, body weight changes, and ovarian function...
February 3, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339541/vitamin-d-suppresses-oxidative-stress-induced-microparticle-release-by-human-umbilical-vein-endothelial-cells
#6
Xiuyue Jia, Jie Xu, Yang Gu, Xin Gu, Weimin Li, Yuping Wang
Endothelial microparticle (MP) release was increased in numerous cardiovascular diseases including preeclampsia. Oxidative stress is a potent inducer of endothelial dysfunction. In this study, we aimed to investigate if vitamin D could protect endothelial cells (ECs) from MP release induced by oxidative stress. Endothelial cell (from human umbilical vein) oxidative stress was induced by cultivation of cells under lowered oxygen condition (2%O2) for 48 h and cells cultured under standard condition (21%O2) served as control...
December 27, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/28339499/evaluation-of-fusion-protein-cleavage-site-sequences-of-newcastle-disease-virus-in-genotype-matched-vaccines
#7
Shin-Hee Kim, Zongyan Chen, Asuka Yoshida, Anandan Paldurai, Sa Xiao, Siba K Samal
Newcastle disease virus (NDV) causes a devastating poultry disease worldwide. Frequent outbreaks of NDV in chickens vaccinated with conventional live vaccines suggest a need to develop new vaccines that are genetically matched against circulating NDV strains, such as the genotype V virulent strains currently circulating in Mexico and Central America. In this study, a reverse genetics system was developed for the virulent NDV strain Mexico/01/10 strain and used to generate highly attenuated vaccine candidates by individually modifying the cleavage site sequence of fusion (F) protein...
2017: PloS One
https://www.readbyqxmd.com/read/28339215/discovery-and-pre-clinical-characterization-of-a-3-rd-generation-4-h-heteroaryldihydropyrimidine-hap-analogues-as-hepatitis-b-virus-hbv-capsid-inhibitors
#8
Zongxing Qiu, Xianfeng Lin, Weixing Zhang, Mingwei Zhou, Lei Guo, Buelent Kocer, Guolong Wu, Zhisen Zhang, Haixia Liu, Houguang Shi, Buyu Kou, Taishan Hu, Yimin Hu, Mengwei Huang, S Frank Yan, Zhiheng Xu, Zheng Zhou, Ning Qin, Yue Fen Wang, Shuang Ren, Hongxia Qiu, Yuxia Zhang, Yi Zhang, Xiaoyue Wu, Kai Sun, Sheng Zhong, Jianxun Xie, Giorgio Ottaviani, Yuan Zhou, Lina Zhu, Xiaojun Tian, Liping Shi, Fang Shen, Yi Mao, Xue Zhou, Lu Gao, John A T Young, Jim Zhen Wu, Guang Yang, Alexander V Mayweg, Hong C Shen, Guozhi Tang, Wei Zhu
Described herein are the discovery and structure-activity relationship (SAR) studies of the 3(rd) generation 4-H heteroaryldihydropyrimidines (4-H HAPs) featuring the introduction of a C6 carboxyl group as novel HBV capsid inhibitors. This new series of 4-H HAPs showed improved anti-HBV activity and better drug-like properties compared to the 1(st) and 2(nd) generation 4-H HAPs. X-ray crystallographic study of analogue 12 (HAP_R01) with Cp149 Y132A mutant hexamer clearly elucidated the role of C6 carboxyl group played for the increased binding affinity, which formed strong hydrogen bonding interactions with capsid protein and coordinated waters...
March 24, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28339062/p53-microrna-374b-akt1-regulates-colorectal-cancer-cell-apoptosis-in-response-to-dna-damage
#9
Hangjun Gong, Yu Cao, Gang Han, Yun Zhang, Qing You, Yidong Wang, Yamin Pan
Colorectal cancer (CRC) has a rising morbidity worldwide and its resistance to chemotherapy has been observed in clinical treatment. Tumor suppressor p53 is well-studied in CRC, but little is known about its effects during DNA damage of CRC cells. This study was aimed at uncovering potential mechanisms of p53 regarding microRNA-374b and v-akt murine thymoma viral oncogene homolog 1 (AKT1) during DNA damage of CRC cells. CRC cells HCT116 and HT29 were transfected with p53-specific small interfering RNA (siRNA), p53 overexpression vector or miR-374b inhibitor, and then treated with 10 µM bleomycin (BLM) for 24 h to induce DNA damage...
March 21, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28339050/p53-mutation-status-is-a-primary-determinant-of-placenta-specific-protein-1-expression-in-serous-ovarian-cancers
#10
Eric J Devor, Jesus Gonzalez-Bosquet, Akshaya Warrier, Henry D Reyes, Nonye V Ibik, Brandon M Schickling, Andreea Newtson, Michael J Goodheart, Kimberly K Leslie
Placenta-specific protein 1 (PLAC1) expression is co-opted in numerous human cancers. As a consequence of PLAC1 expression, tumor cells exhibit enhanced proliferation and invasiveness. This characteristic is associated with increased aggressiveness and worse patient outcomes. Recently, the presence of the tumor suppressor p53 was shown in vitro to inhibit PLAC1 transcription by compromising the P1, or distal/cancer, promoter. We sought to determine if this phenomenon occurs in primary patient tumors as well...
March 23, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28338992/identification-of-the-eucalyptus-grandis-chitinase-gene-family-and-expression-characterization-under-different-biotic-stress-challenges
#11
Peri A Tobias, Nanette Christie, Sanushka Naidoo, David I Guest, Carsten Külheim
Eucalyptus grandis (W. Hill ex Maiden) is an Australian Myrtaceae tree grown for timber in many parts of the world and for which the annotated genome sequence is available. Known to be susceptible to a number of pests and diseases, E. grandis is a useful study organism for investigating defense responses in woody plants. Chitinases are widespread in plants and cleave glycosidic bonds of chitin, the major structural component of fungal cell walls and arthropod exoskeletons. They are encoded by an important class of genes known to be up-regulated in plants in response to pathogens...
March 13, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338924/a-nonsynonymous-snp-catalog-of-mycobacterium-tuberculosis-virulence-genes-and-its-use-for-detecting-new-potentially-virulent-sublineages
#12
N E Mikheecheva, M V Zaychikova, A V Melerzanov, V N Danilenko
Mycobacterium tuberculosis is divided into several distinct lineages, and various genetic markers such as IS-elements, VNTR, and SNPs are used for lineage identification. We propose an M. tuberculosis classification approach based on functional polymorphisms in virulence genes. An M. tuberculosis virulence genes catalog has been established, including 319 genes from various protein groups, such as proteases, cell wall proteins, fatty acid and lipid metabolism proteins, sigma factors, toxin-antitoxin systems...
March 11, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28338655/evolution-of-caspase-mediated-cell-death-and-differentiation-twins-separated-at-birth
#13
REVIEW
Ryan A V Bell, Lynn A Megeney
The phenotypic and biochemical similarities between caspase-mediated apoptosis and cellular differentiation are striking. They include such diverse phenomenon as mitochondrial membrane perturbations, cytoskeletal rearrangements and DNA fragmentation. The parallels between the two disparate processes suggest some common ancestry and highlight the paradoxical nature of the death-centric view of caspases. That is, what is the driving selective pressure that sustains death-inducing proteins throughout eukaryotic evolution? Plausibly, caspase function may be rooted in a primordial non-death function, such as cell differentiation, and was co-opted for its role in programmed cell death...
March 24, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28338218/evaluation-of-targeted-exome-sequencing-for-28-protein-based-blood-group-systems-including-the-homologous-gene-systems-for-blood-group-genotyping
#14
Elizna M Schoeman, Genghis H Lopez, Eunike C McGowan, Glenda M Millard, Helen O'Brien, Eileen V Roulis, Yew-Wah Liew, Jacqueline R Martin, Kelli A McGrath, Tanya Powley, Robert L Flower, Catherine A Hyland
BACKGROUND: Blood group single nucleotide polymorphism genotyping probes for a limited range of polymorphisms. This study investigated whether massively parallel sequencing (also known as next-generation sequencing), with a targeted exome strategy, provides an extended blood group genotype and the extent to which massively parallel sequencing correctly genotypes in homologous gene systems, such as RH and MNS. STUDY DESIGN AND METHODS: Donor samples (n = 28) that were extensively phenotyped and genotyped using single nucleotide polymorphism typing, were analyzed using the TruSight One Sequencing Panel and MiSeq platform...
March 24, 2017: Transfusion
https://www.readbyqxmd.com/read/28338201/the-clinical-relationship-between-the-slug-mediated-puma-p53-signaling-pathway-and-radiotherapy-resistance-in-nasopharyngeal-carcinoma
#15
T Xu, Y Yuan, D-J Xiao
OBJECTIVE: To explore the clinical relationship between the Slug-mediated Puma/p53 signaling pathway and radiotherapy resistance in nasopharyngeal carcinoma. PATIENTS AND METHODS: Forty surgical specimens were collected from nasopharyngeal carcinoma patients treated at our hospital between February 2010 and February 2015. Twenty patients with poorly differentiated nasopharyngeal carcinoma with and without radiotherapy resistance were included in the experimental and control groups, respectively...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337914/electrically-actuated-valves-for-woven-fabric-lateral-flow-devices
#16
Tanya Narahari, Dhananjaya Dendukuri, Shashi K Murthy
The integration of flow control elements into low-cost biosensors, presents a significant engineering challenge. This article describes the development and integration of active, chemical valves into lateral flow devices, using a scalable, single-step, weaving-based manufacturing approach. The valve was constructed from an electrically conductive polymer, polypyrrole. The polymer switches between wetting and non-wetting states when it is reduced and oxidized via the application of an electrochemical potential...
March 24, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28337779/the-chemistry-function-patho-physiology-of-stratum-corneum-barrier-ceramides
#17
REVIEW
David J Moore, Anthony V Rawlings
Research on understanding of the chemistry, function and (patho)physiology of stratum corneum (SC) lipids and especially ceramides has evolved over the last two decades. This has been made successful through the application of separation techniques that have become increasingly more sophisticated and it has become increasingly evident that our understanding of these molecules remains in its infancy. Thirteen classes of ceramides with over 300 and possibly up to 1000 distinct ceramide species have been identified suggesting an exquisitely subtle relationship between the types of ceramides and physical and chemical behavior...
March 24, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/28337778/biochemical-alterations-in-duckweed-and-algae-induced-by-carrier-solvents-selection-of-an-appropriate-solvent-in-toxicity-testing
#18
Li-Xin Hu, Fei Tian, Francis L Martin, Guang-Guo Ying
Carrier solvents are often used in aquatic toxicity testing for test chemicals with hydrophobic properties. However, the knowledge of solvent effects on test organisms remains limited. This study aimed to understand biochemical effects of the four common solvents ((methanol, ethanol, acetone and dimethylsulfoxide (DMSO)) on two test species Lemna minor and Raphidocelis subcapitata by applying Fourier transform infrared spectroscopy (FTIR) coupled with multivariate analysis in order to select appropriate solvents in the toxicity testing...
March 24, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28337723/assessment-of-safety-efficacy-and-dosimetry-of-a-novel-18-kda-translocator-protein-ligand-11-c-cb184-in-healthy-human-volunteers
#19
Muneyuki Sakata, Kenji Ishibashi, Masamichi Imai, Kei Wagatsuma, Kenji Ishii, Kentaro Hatano, Kiichi Ishiwata, Jun Toyohara
BACKGROUND: N,N-di-n-propyl-2-[2-(4-[(11)C]methoxyphenyl)-6,8-dichloroimidazol[1,2-a]pyridine-3-yl]acetamide ([(11)C]CB184) is a novel selective radioligand for the 18-kD translocator protein (TSPO), which is upregulated in activated microglia in the brain, and may be useful in positron emission tomography (PET). We examined the safety, radiation dosimetry, and initial brain imaging with [(11)C]CB184 in healthy human volunteers. RESULTS: Dynamic [(11)C]CB184 PET scans (90 min) were performed in five healthy male subjects...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28337716/long-term-variation-of-serum-levels-of-uremic-toxins-in-patients-treated-by-post-dilution-high-volume-on-line-hemodiafiltration-in-comparison-to-standard-low-flux-bicarbonate-dialysis-results-from-the-redert-study
#20
Vincenzo Panichi, Maria Teresa Rocchetti, Alessia Scatena, Alberto Rosati, Massimiliano Migliori, Francesco Pizzarelli, Loreto Gesualdo
PURPOSE OF THE STUDY: Little information have been provided till now regarding the effect of high volume HDF (hv-OL-HDF) in respect to standard bicarbonate dialysis (BHD) in medium-long term protein-bound toxins removal. PROCEDURES: A randomised cross-over multicentre study (REDERT study) was designed to compare the effects of hv-OL-HDF and low-flux BHD on uremic toxins serum levels in 36 chronic dialysis patients followed for 13 months. Group 1 patients were treated with BHD (Treatment A) for 6 months, and afterwards, they were transferred to hv-OL-HDF for a further 6 months (Treatment B)...
March 24, 2017: Journal of Nephrology
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