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https://www.readbyqxmd.com/read/29222898/exercise-induced-dehydration-status-and-skinfold-compressibility-in-athletes-an-intervention-study
#1
Daniela Araújo, Vitor Hugo Teixeira, Pedro Carvalho, Teresa F Amaral
BACKGROUND AND OBJECTIVES: Skinfold thickness assessment is a widely recognized technique for the estimation of body adiposity and fat free mass. This method assumes that skinfolds' compressibility is constant but there are some factors that could influence its compressibility. This study aims to evaluate whether the skinfolds' compressibility is influenced by hydration status. METHODS AND STUDY DESIGN: An intervention study was conducted in a sample of 22 adult male amateur soccer players, who took part in a 90min simulated soccer match...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29221809/acute-pain-and-peripheral-sensitization-following-cautery-disbudding-in-1-and-4-week-old-calves
#2
Mirra Alessandro, Spadavecchia Claudia, Bruckmaier Rupert, Gutzwiller Andreas, Casoni Daniela
Acute pain and peripheral sensitization development after cautery disbudding was investigated in 33 calves administered preventive multimodal analgesia. The animals were assigned randomly to three groups: 1) Group SH (Control), undergoing sham disbudding at 1 and 4weeks of age; 2) Group ED (Early Disbudding), undergoing disbudding at 1week of age and sham disbudding at 4weeks of age; 3) Group LD (Late Disbudding), undergoing sham disbudding at 1week of age and disbudding at 4weeks of age. Physiological parameters (heart rate, respiratory rate, rectal temperature, invasive blood pressure, cortisol, β-endorphin, interleukin-1β, interleukin-6, tumor necrosis factor-α and haptoglobin plasmatic concentration), local variables (tactile sensitivity score, pressure pain thresholds and horn temperature), behavior and pain scores [multidimensional pain scale and visual analogue scale (VAS)] were assessed at baseline and at several pre-determined time points until 24h after disbudding...
December 5, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29221804/the-impact-of-the-cd9-tetraspanin-on-lentivirus-infectivity-and-exosome-secretion
#3
Kai O Böker, Nicolas Lemus-Diaz, Rafael Rinaldi Ferreira, Lara Schiller, Stefan Schneider, Jens Gruber
Efficient transduction tools are a hallmark for both research and therapy development. Here, we introduce new insights into the generation of lentiviral vectors with improved performance by utilizing producer cells with increased production rates of extracellular vesicles through CD9 overexpression. Most human cells secrete small vesicles from their surface (microvesicles) or intraluminal endosome-derived membranes (exosomes). In particular, enhanced levels of the tetraspanin CD9 result in significantly increased numbers of extracellular vesicles with exosome-like features that were secreted from four different human cell lines...
November 16, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29221382/detailed-balance-internal-consistency-and-energy-conservation-in-fragment-orbital-based-surface-hopping
#4
Antoine Carof, Samuele Giannini, Jochen Blumberger
We have recently introduced an efficient semi-empirical non-adiabatic molecular dynamics method for the simulation of charge transfer/transport in molecules and molecular materials, denoted fragment orbital-based surface hopping (FOB-SH) [J. Spencer et al., J. Chem. Phys. 145, 064102 (2016)]. In this method, the charge carrier wavefunction is expanded in a set of charge localized, diabatic electronic states and propagated in the time-dependent potential due to classical nuclear motion. Here we derive and implement an exact expression for the non-adiabatic coupling vectors between the adiabatic electronic states in terms of nuclear gradients of the diabatic electronic states...
December 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29220795/novel-vanillin-derivatives-synthesis-anti-oxidant-dna-and-cellular-protection-properties
#5
Matteo Scipioni, Graeme Kay, Ian Megson, Paul Kong Thoo Lin
Antioxidants have been the subject of intense research interest mainly due to their beneficial properties associated with human health and wellbeing. Phenolic molecules, such as naturally occurring Resveratrol and Vanillin, are well known for their anti-oxidant properties, providing a starting point for the development of new antioxidants. Here we report, for the first time, the synthesis of a number of new vanillin through the reductive amination reaction between vanillin and a selection of amines. All the compounds synthesised, exhibited strong antioxidant properties in DPPH, FRAP and ORAC assays, with compounds 1b and 2c being the most active...
December 2, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29219178/the-long-noncoding-rna-neat1-contributes-to-hepatocellular-carcinoma-development-by-sponging-mir-485-and-enhancing-the-expression-of-the-stat3
#6
Xu-Nan Zhang, Chang-Cheng Wang, Jun Zhou
Accumulating evidence has supported the significance of lncRNAs in tumorigenesis. Recently, some studies indicate the oncogenic role of lncRNA Nuclear Enriched Abundant Transcript 1 (NEAT1) in hepatocellular carcinoma (HCC). In our present study, we focused on the biological mechanisms through which NEAT1 can regulate HCC development. We found that NEAT1 was greatly upregulated in human HCC cell lines including Huh7, Hep3B, HepG2, Bel-7404 and SK-Hep1 cells compared to the normal human liver cell line LO2. In addition, we observed that miR-485 was significantly downregulated in HCC cells...
December 8, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29218766/risk-of-recurrent-severe-hypoglycemia-remains-associated-with-a-past-history-of-severe-hypoglycemia-up-to-4%C3%A2-years-results-from-a-large-prospective-contemporary-pediatric-cohort-of-the-dpv-initiative
#7
D Pacaud, J M Hermann, B Karges, J Rosenbauer, T Danne, R Dürr, A Herbst, S Lindauer, S Müther, S Pötzsch, K Raile, M Witsch, R W Holl
OBJECTIVES: In a contemporary cohort of youth with type 1 diabetes, we examined the interval between episodes of severe hypoglycemia (SH) as a risk factor for recurrent SH or hypoglycemic coma (HC). METHODS: This was a large longitudinal observational study. Using the DPV Diabetes Prospective follow-up data, we analyzed frequency and timing of recurrent SH (defined as requiring assistance from another person) and HC (loss of consciousness or seizures) in 14 177 youths with type 1 diabetes aged <20 years and at least 5 years of follow-up...
December 8, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/29217406/lncrna-snhg1-promotes-%C3%AE-synuclein-aggregation-and-toxicity-by-targeting-mir-15b-5p-to-activate-siah1-in-human-neuroblastoma-sh-sy5y-cells
#8
Yuan Chen, Ya-Jun Lian, Yun-Qing Ma, Chuan-Jie Wu, Ya-Ke Zheng, Nan-Chang Xie
Numerous long non-coding RNAs (lncRNAs) have been identified as aberrantly expressed in Parkinson's disease (PD). However, limited knowledge is available concerning the roles of dysregulated lncRNAs and the underlying molecular regulatory mechanism in the pathological process of PD. In this study, we found that lncRNA small nucleolar RNA host gene 1 (SNHG1) and seven in absentia homolog 1 (SIAH1) were upregulated, but microRNA-15b-5p (miR-15b-5p) was downregulated in SH-SY5Y cells pretreated with MPP+, as well as in MPTP-induced mouse model of PD...
December 4, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/29216561/design-synthesis-and-evaluation-of-an-anthraquinone-derivative-conjugated-to-myelin-basic-protein-immunodominant-mbp85-99-epitope-towards-selective-immunosuppression
#9
Anthi Tapeinou, Efstathia Giannopoulou, Carmen Simal, Bjarke E Hansen, Haralabos Kalofonos, Vasso Apostolopoulos, Alexios Vlamis-Gardikas, Theodore Tselios
Anthraquinone type compounds, especially di-substituted amino alkylamino anthraquinones have been widely studied as immunosuppressants. The anthraquinone ring is part of mitoxandrone that has been used for the treatment of multiple sclerosis (MS) and several types of tumors. A desired approach for the treatment of MS would be the immunosuppression and elimination of specific T cells that are responsible for the induction of the disease. Herein, the development of a peptide compound bearing an anthraquinone derivative with the potential to specifically destroy the encephalitogenic T cells responsible for the onset of MS is described...
November 24, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29216438/antiulcerative-activity-of-milk-proteins-hydrolysates
#10
Wilman Carrillo, Karin Maia Monteiro, Daniel Martínez-Maqueda, Mercedes Ramos, Isidra Recio, João Ernesto de Carvalho
Several studies have shown the protective effect of dairy products, especially α-lactalbumin and derived hydrolysates, against induced gastric ulcerative lesions. The mucus strengthening represents an important mechanism in the defense of gastrointestinal mucosa. Previously, a hydrolysate from casein (CNH) and a hydrolysate from whey protein concentrate rich in β-lactoglobulin (WPH) demonstrated a stimulatory activity on mucus production in intestinal goblet cells. The aim of this work was to evaluate the possible antiulcerative activity of these two hydrolysates in an ethanol-induced ulcer model in rats...
December 7, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29215880/neuroprotective-effects-of-1-2-diarylpropane-type-phenylpropanoid-enantiomers-from-red-raspberry-against-h2o2-induced-oxidative-stress-in-human-neuroblastoma-sh-sy5y-cells
#11
Le Zhou, Guo-Dong Yao, Xiao-Yu Song, Jie Wang, Bin Lin, Xiao-Bo Wang, Xiao-Xiao Huang, Shao-Jiang Song
Red raspberry (Rubus idaeus L.) is an edible fruit-producing species belonging to the Rosaceae family. In our search for the health-promoting constituents from this fruit, four pairs of enantiomeric phenylpropanoids (1a/1b-4a/4b), including three new compounds (1a and 2a/2b), were isolated from red raspberry. Their structures were elucidated by a combination of the extensive NMR spectroscopic data analyses, HRESIMS and comparison between the experimental measurements of electronic circular dichroism (ECD) and calculated ECD spectra by time-dependent density functional theory (TDDFT)...
December 7, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29215849/-study-of-mitochondrial-dysfunction-using-cytoplasmic-hybrid
#12
V V Sinyov, M A Sazonova, V P Karagodin, A I Ryzhkova, E V Galitsyna, A A Melnichenko, N A Demakova, T P Shkurat, I A Sobenin, A N Orekhov
Aim. This review article describes literature sources devoted to the investigation of mitochondrial dysfunction using cytoplasmic hybrids (cybrids). The presented studies were carried out on cultures of cybrid cell lines HL60, MOL T-4, A549, 143B, HeLa, Arpe-19, HEK-293, SH-SY5Y and NT2. According to the analysis of scientific world literature, some of the most promising models for studying mitochondrial dysfunction are cell cultures without mitochondria (rho0) and cytoplasmic hybrids containing one or several mutations of mitochondrial genome...
April 2017: Patologicheskaia Fiziologiia i èksperimental'naia Terapiia
https://www.readbyqxmd.com/read/29215140/change-of-the-structure-and-digestibility-of-myofibrillar-proteins-in-nanjing-dry-cured-duck-during-processing
#13
Xiaojing Du, Yangying Sun, Daodong Pan, Ying Wang, Changrong Ou, Jinxuan Cao
BACKGROUND: To investigate the change of bioavailability and structure of myofibrillar proteins during Nanjing dry-cured duck processing, carbonyl content, sulfhydryl (SH) group, disulfide (S-S) group, sodium dodecyl sulfate polyacrylamide gel electrophoresis, surface hydrophobicity, secondary structures and in vitro digestibility were determined. RESULTS: During processing, carbonyl content and surface hydrophobicity increased; SH turned into S-S group; α-helix turned into β-sheet and random coil fractions...
December 7, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29215070/evolutionary-analysis-of-mumps-viruses-of-genotype-f-collected-in-mainland-china-in-2001-2015
#14
Aili Cui, Pierre Rivailler, Zhen Zhu, Xiuying Deng, Ying Hu, Yan Wang, Fangcai Li, Zhaodan Sun, Jilan He, Yuan Si, Xiaoling Tian, Shujie Zhou, Yake Lei, Huanying Zheng, Paul A Rota, Wenbo Xu
Mumps incidence in mainland China remains at a high level. Genotype F has been the predominant genotype of mumps virus (MuV) in the last 20 years in mainland China. To better understand the genetic characteristics of MuV in China, the sequences of the Small Hydrophobic (SH), Hemagglutinin-Neuraminidase (HN) and Fusion (F) genes of MuVs of genotype F collected during 2001-2015 were determined. The evolutionary rates of the HN and F genes were similar (0.5 × 10-3 substitutions/site/year) whereas the SH gene evolutionary rate was three times faster...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214735/the-mechanism-study-of-mir-125b-in-occurrence-and-progression-of-multiple-myeloma
#15
Da Gao, Zhen Xiao, Hui-Ping Li, Dong-Hai Han, Ya-Peng Zhang
Although many efforts have contributed to improve our knowledge of molecular pathogenesis about multiple myeloma (MM), the role and significance of microRNAs and long noncoding RNAs in MM cells, along with the core mechanism remains virtually absent. The mRNA levels of miR-125b and MALAT1 in MM cell lines were detected by qRT-PCR. The influence of Lenti-Sh-miR-125b on cell viability and the Notch-1 pathway-related proteins were assessed by MTT method and western blot, respectively. We also investigated the regulation effect between MALAT1 and Notch1 pathway...
December 7, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/29214520/high-density-snp-and-dart-based-genetic-linkage-maps-of-two-closely-related-oil-palm-populations
#16
Siou Ting Gan, Wei Chee Wong, Choo Kien Wong, Aik Chin Soh, Andrzej Kilian, Eng-Ti Leslie Low, Festo Massawe, Sean Mayes
Oil palm (Elaeis guineensis Jacq.) is an outbreeding perennial tree crop with long breeding cycles, typically 12 years. Molecular marker technologies can greatly improve the breeding efficiency of oil palm. This study reports the first use of the DArTseq platform to genotype two closely related self-pollinated oil palm populations, namely AA0768 and AA0769 with 48 and 58 progeny respectively. Genetic maps were constructed using the DArT and SNP markers generated in combination with anchor SSR markers. Both maps consisted of 16 major independent linkage groups (2n = 2× = 32) with 1399 and 1466 mapped markers for the AA0768 and AA0769 populations, respectively, including the morphological trait "shell-thickness" (Sh)...
December 6, 2017: Journal of Applied Genetics
https://www.readbyqxmd.com/read/29214369/ginkgolide-k-promotes-the-clearance-of-a53t-mutation-alpha-synuclein-in-sh-sy5y-cells
#17
Wenbo Yu, Sheng Chen, Liang Cao, Jie Tang, Wei Xiao, Baoguo Xiao
Alpha-synuclein (α-syn) is associated to Parkinson's disease (PD). The aggregated form of α-syn has potential neurotoxicity. Thus, the clearance of α-syn aggregation is a plausible strategy to delay disease progression of PD. In our study, we found that the treatment of Ginkgolide B (GB) and Ginkgolide K (GK) reduced cell death, and enhanced cell proliferation in SH-SY5Y cells, which overexpressed A53T mutant α-syn. Surprisingly, GK, but not GB, promoted the clearance of A53T α-syn, which can be abolished by autophagy inhibitor 3-methyladenine, indicating that GK-induced autophagy intervened in the clearance of A53T α-syn...
December 6, 2017: Cell Biology and Toxicology
https://www.readbyqxmd.com/read/29212266/ews-fli1-and-rna-helicase-a-interaction-inhibitor-yk-4-279-inhibits-growth-of-neuroblastoma
#18
Wenjing Sun, Yesenia Rojas, Hao Wang, Yang Yu, Yongfeng Wang, Zhenghu Chen, Kimal Rajapakshe, Xin Xu, Wei Huang, Saurabh Agarwal, Roma H Patel, Sarah Woodfield, Yanling Zhao, Jingling Jin, Hong Zhang, Angela Major, M John Hicks, Jason M Shohet, Sanjeev A Vasudevan, Cristian Coarfa, Jianhua Yang, Jed G Nuchtern
Treatment failure in high risk neuroblastoma (NB) is largely due to the development of chemotherapy resistance. We analyzed the gene expression changes associated with exposure to chemotherapy in six high risk NB tumors with the aid of the Connectivity Map bioinformatics platform. Ten therapeutic agents were predicted to have a high probability of reversing the transcriptome changes associated with neoadjuvant chemotherapy treatment. Among these agents, initial screening showed the EWS-FLI1 and RNA helicase A interaction inhibitor YK-4-279, had obvious cytotoxic effects on NB cell lines...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29211720/blazar-spectral-variability-as-explained-by-a-twisted-inhomogeneous-jet
#19
C M Raiteri, M Villata, J A Acosta-Pulido, I Agudo, A A Arkharov, R Bachev, G V Baida, E Benítez, G A Borman, W Boschin, V Bozhilov, M S Butuzova, P Calcidese, M I Carnerero, D Carosati, C Casadio, N Castro-Segura, W-P Chen, G Damljanovic, F D'Ammando, A Di Paola, J Echevarría, N V Efimova, Sh A Ehgamberdiev, C Espinosa, A Fuentes, A Giunta, J L Gómez, T S Grishina, M A Gurwell, D Hiriart, H Jermak, B Jordan, S G Jorstad, M Joshi, E N Kopatskaya, K Kuratov, O M Kurtanidze, S O Kurtanidze, A Lähteenmäki, V M Larionov, E G Larionova, L V Larionova, C Lázaro, C S Lin, M P Malmrose, A P Marscher, K Matsumoto, B McBreen, R Michel, B Mihov, M Minev, D O Mirzaqulov, A A Mokrushina, S N Molina, J W Moody, D A Morozova, S V Nazarov, M G Nikolashvili, J M Ohlert, D N Okhmat, E Ovcharov, F Pinna, T A Polakis, C Protasio, T Pursimo, F J Redondo-Lorenzo, N Rizzi, G Rodriguez-Coira, K Sadakane, A C Sadun, M R Samal, S S Savchenko, E Semkov, B A Skiff, L Slavcheva-Mihova, P S Smith, I A Steele, A Strigachev, J Tammi, C Thum, M Tornikoski, Yu V Troitskaya, I S Troitsky, A A Vasilyev, O Vince
Blazars are active galactic nuclei, which are powerful sources of radiation whose central engine is located in the core of the host galaxy. Blazar emission is dominated by non-thermal radiation from a jet that moves relativistically towards us, and therefore undergoes Doppler beaming. This beaming causes flux enhancement and contraction of the variability timescales, so that most blazars appear as luminous sources characterized by noticeable and fast changes in brightness at all frequencies. The mechanism that produces this unpredictable variability is under debate, but proposed mechanisms include injection, acceleration and cooling of particles, with possible intervention of shock waves or turbulence...
December 4, 2017: Nature
https://www.readbyqxmd.com/read/29211452/promoted-chondrogenesis-of-co-cultured-chondrocytes-and-mesenchymal-stem-cells-under-hypoxia-using-in-situ-forming-degradable-hydrogel-scaffolds
#20
Xiaobin Huang, Yong Hou, Leilei Zhong, Dechun Huang, Hongliang Qian, Marcel Karperien, Wei Chen
We investigated the effects of different oxygen tension (21% and 2.5% O2) on the chondrogenesis of different cell systems cultured in pH-degradable PVA hydrogels including human articular chondrocytes (hACs), human mesenchymal stem cells (hMSCs) and their co-cultures with a hAC/hMSC ratio of 20/80. These hydrogels were prepared with vinyl ether acrylate-functionalized PVA (PVA-VEA) and thiolated PVA-VEA (PVA-VEA-SH) via Michael-type addition reaction. The rheology tests determined the gelation of the hydrogels was controlled within 2-7 min dependent on the polymer concentrations...
December 6, 2017: Biomacromolecules
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