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https://www.readbyqxmd.com/read/28728275/-changes-and-differences-of-dna-methylation-in-human-macrophages-infected-with-virulent-and-avirulent-mycobacterium-tuberculosis
#1
L N Lyu, H Y Jia, Z H Li, Z Q Liu, Z D Zhang
Objective: To profile DNA methylation and compare differentially methylated region (DMR) of macrophages infected with virulent and avirulent strains of Mycobacterium tuberculosis (MTB). Methods: PMA(50 ng/ml) treated THP-1 macrophages were left uninfected or infected with the virulent H37Rv(THP-1/Rv) or avirulent H37Ra(THP-1/Ra). The genomic DNA was then extracted and DNA methylation was profiled via Reduced Representation Bisulfite Sequencing (RRBS). The DNA methylation pattern and DMRs between the tested samples were indentified...
July 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28727664/effect-of-self-efficacy-intervention-on-quality-of-life-of-patients-with-intestinal-stoma
#2
Shujuan Xu, Zhiyun Zhang, Aimei Wang, Jiangyun Zhu, Hongzhi Tang, Xiaoli Zhu
Colorectal carcinoma is one of the most common malignancies worldwide and the most prevalent cause of cancer mortality in China. The Miles operation and permanent colostomy are effective treatment. However, these affect the quality of life of patients as they alter normal defecation. Self-efficacy is used to define an individuals' assessments of their ability to perform a specific behavior successfully. It is regarded as an important belief that can predict health behaviors. The aim of this study was to explore the effect of a self-efficacy intervention on the quality of life of patients with a permanent colostomy...
July 19, 2017: Gastroenterology Nursing: the Official Journal of the Society of Gastroenterology Nurses and Associates
https://www.readbyqxmd.com/read/28727663/mindfulness-based-relapse-prevention-for-substance-use-disorders-a-systematic-review-and-meta-analysis
#3
Sean Grant, Benjamin Colaiaco, Aneesa Motala, Roberta Shanman, Marika Booth, Melony Sorbero, Susanne Hempel
OBJECTIVES: Substance use disorder (SUD) is a prevalent health issue with serious personal and societal consequences. This review aims to estimate the effects and safety of Mindfulness-based Relapse Prevention (MBRP) for SUDs. METHODS: We searched electronic databases for randomized controlled trials evaluating MBRP for adult patients diagnosed with SUDs. Two reviewers independently assessed citations, extracted trial data, and assessed risks of bias. We conducted random-effects meta-analyses and assessed quality of the body of evidence (QoE) using the Grading of Recommendations Assessment, Development, and Evaluation approach...
July 19, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28727577/nurses-exploring-the-spirituality-of-their-patients-with-cancer-participant-observation-on-a-medical-oncology-ward
#4
Jacqueline van Meurs, Wim Smeets, Kris C P Vissers, Marieke Groot, Yvonne Engels
BACKGROUND: Attention for spirituality should be an integral part of professionals' caregiving. Particularly, nurses caring for patients with cancer might have opportunities to give attention to this dimension. OBJECTIVE: The aim of this study was to gain insight in the way and extent to which nurses during daily caregiving observe and explore spiritual issues of hospitalized patients with cancer. METHODS: We performed an ethnographic study with participant observation...
July 19, 2017: Cancer Nursing
https://www.readbyqxmd.com/read/28727097/evaluating-the-impact-of-breed-pregnancy-and-hair-coat-on-body-temperature-and-sweating-rate-of-hair-sheep-ewes-in-the-tropics
#5
R W Godfrey, W D Preston, S R Joseph, L LaPlace, P E Hillman, K G Gebremedhin, C N Lee, R J Collier
The objective of this study was to evaluate the effect of pregnancy, breed, and hair coat on body temperature and sweating rate (SR) of hair sheep. St. Croix White (STX; = 9) and Dorper × STX (DRPX; = 9) ewes (3.6 yr of age) were evaluated over 4 d at 126 d of gestation (PREG) and over 4 d at 46 d postpartum (OPEN) in the shade and sun and in the morning (AM; 0900 to 1200 h) and afternoon (PM; 1300 to 1600 h) after a 20 min acclimation to each condition on each day. Data loggers recorded vaginal temperature (VT) at 10-min intervals for 96 h...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727056/effects-of-protein-and-fat-concentration-in-coproduct-based-growing-calf-diets-on-adipogenic-and-lipogenic-gene-expression-blood-metabolites-and-carcass-composition
#6
J R Segers, J J Loor, S J Moisá, D Gonzalez, D W Shike
Crossbred calves ( = 30; age = 95 ± 1.7 d; BW = 179 ± 18 kg) were fed 1 of 5 growing diets: 1) corn-based control, 2) low-fat, low-protein coproduct blend, 3) high-fat, low-protein coproduct blend, 4) low-fat, high-protein coproduct blend, and 5) high-fat, high-protein coproduct blend for 112 d (growing phase) followed by a common corn-based finishing diet (additional 112 d; finishing phase). Calves were biopsied at 0, 112, and 224 d for transcriptional analysis via real-time quantitative PCR of 14 genes associated with adipogenesis and lipogenesis within the muscle...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726926/using-one-halogen-bond-to-change-the-nature-of-a-second-bond-in-ternary-complexes-with-pcl-and-fcl-halogen-bonds
#7
Janet E Del Bene, Ibon Alkorta, José Elguero
Ab initio MP2/aug'-cc-pVTZ calculations have been carried out to determine the effect of the presence of one halogen bond on the nature of the other in ternary complexes H2XP:ClF:ClH and H2XP:ClF:ClF, for X = F, Cl, H, NC, and CN. The PCl bonds remain chlorine-shared halogen bonds in the ternary complexes H2XP:ClF:ClH, although the degree of chlorine sharing increases relative to the corresponding binary complexes. The FCl bonds in the ternary complexes remain traditional halogen bonds. The binding energies of the complexes H2XP:ClF:ClH increase relative to the corresponding binary complexes, and nonadditivities of binding energies are synergistic...
July 20, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28726630/dissection-of-specific-binding-of-hiv-1-gag-to-the-packaging-signal-in-viral-rna
#8
Mauricio Comas-Garcia, Siddhartha Ak Datta, Laura Baker, Rajat Varma, Prabhakar R Gudla, Alan Rein
Selective packaging of HIV-1 genomic RNA (gRNA) requires the presence of a cis-acting RNA element called the "packaging signal" (Ψ). However, the mechanism by which Ψ promotes selective packaging of the gRNA is not well understood. We used fluorescence correlation spectroscopy and quenching data to monitor the binding of recombinant HIV-1 Gag protein to Cy5-tagged 190-base RNAs. At physiological ionic strength, Gag binds with very similar, nanomolar affinities to both Ψ-containing and control RNAs. We challenged these interactions by adding excess competing tRNA; introducing mutations in Gag; or raising the ionic strength...
July 20, 2017: ELife
https://www.readbyqxmd.com/read/28726563/mechanically-strong-and-ph-responsive-carboxymethyl-chitosan-graphene-oxide-polyacrylamide-nanocomposite-hydrogels-with-fast-recoverability
#9
Yang Chen, Hongqiu Wang, Junrong Yu, Yan Wang, Jing Zhu, Zuming Hu
The biocompatible, quickly recoverable, mechanically strong and tough polymer hydrogels has great potential for biomedical applications. A novel carboxymethyl chitosan (CMCTs)/graphene oxide (GO)/polyacrylamide (PAM) nanocomposite (NC) hydrogel with excellent mechanical performance was synthesized through a facile, one-pot free radical polymerization, using GO nanosheets as the crosslink centers instead of toxic organic molecules. The content of GO nanosheets and CMCTs has great influence on the mechanical properties of CMCTs/GO/PAM NC hydrogels...
July 20, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28724950/nanocapsules-containing-neem-azadirachta-indica-oil-development-characterization-and-toxicity-evaluation
#10
Tatiane Pasquoto-Stigliani, Estefânia V R Campos, Jhones L Oliveira, Camila M G Silva, Natalia Bilesky-José, Mariana Guilger, Johann Troost, Halley C Oliveira, Renata Stolf-Moreira, Leonardo F Fraceto, Renata de Lima
In this study, we prepared, characterized, and performed toxicity analyses of poly(ε-caprolactone) nanocapsules loaded with neem oil. Three formulations were prepared by the emulsion/solvent evaporation method. The nanocapsules showed a mean size distribution around 400 nm, with polydispersity below 0.2 and were stable for 120 days. Cytotoxicity and genotoxicity results showed an increase in toxicity of the oleic acid + neem formulations according to the amount of oleic acid used. The minimum inhibitory concentrations demonstrated that all the formulations containing neem oil were active...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724603/effects-of-microrna-136-on-melanoma-cell-proliferation-apoptosis-and-epithelial-mesenchymal-transition-by-targeting-pmel-through-the-wnt-signaling-pathway
#11
Jiu-Jiang Wang, Zhi-Feng Li, Xiao-Jing Li, Zhao Han, Ling Zhang, Zhi-Jun Liu
The study aims to evaluate the effects of miR-136 on the proliferation, apoptosis and epithelial mesenchymal transition (EMT) of melanoma cells by targeting PMEL through the Wnt signaling pathway. After establishment of melanoma mouse models, melanoma (model group) and normal tissues (normal group) were collected. Immunohistochemistry was performed to determine PMEL protein concentration. Mouse melanoma cells were assigned into control, blank, negative control (NC), miR-136 mimics, miR-136 inhibitors, siRNA-PMEL, and miR-136 inhibitors + siRNA-PMEL, LiC1 (Wnt signaling pathway activator) and siRNA-PMEL+ LiCl groups...
July 19, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28723866/a-case-of-resistance-to-tyrosine-kinase-inhibitor-therapy-small-cell-carcinoma-transformation-concomitant-with-plasma-genotyped-t790m-positivity
#12
Yanjun Xu, Zhiyu Huang, Lei Gong, Yun Fan
Although non-small-cell lung cancer patients with epidermal growth factor receptor (EGFR) mutations are responsive to EGFR-tyrosine kinase inhibitors, drug resistances are always inevitable. The secondary somatic EGFR threonine-methionine substitution at position 790 (T790M) mutation accounts for ∼50% of acquired resistance mechanisms. Small cell lung cancer (SCLC) transformation is a relatively rare mechanism, but has recently attracted considerable attention. The coexistence of both the mechanisms in one patient is much more scarce in clinic...
July 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28721013/a-novel-local-anesthetic-system-transcriptional-transactivator-peptide-decorated-nanocarriers-for-skin-delivery-of-ropivacaine
#13
Chuanyu Chen, Peijun You
PURPOSE: Barrier properties of the skin and physicochemical properties of drugs are the main factors for the delivery of local anesthetic molecules. The present work evaluates the anesthetic efficacy of drug-loaded nanocarrier (NC) systems for the delivery of local anesthetic drug, ropivacaine (RVC). METHODS: In this study, transcriptional transactivator peptide (TAT)-decorated RVC-loaded NCs (TAT-RVC/NCs) were successfully fabricated. Physicochemical properties of NCs were determined in terms of particle size, zeta potential, drug encapsulation efficiency, drug-loading capacity, stability, and in vitro drug release...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28720946/effect-of-partial-replacement-of-porcine-fat-with-pre-emulsified-soybean-oil-using-fish-protein-isolate-as-emulsifier-on-characteristic-of-sausage
#14
Nopparat Cheetangdee
Partial replacement of animal fats with n-3 rich oils is a promising way to improve nutritive value of meat products. In the present work, the effects of porcine fat substitution with soybean oil (SBO) on characteristics of sausages were studied at the oil substitution levels of 25, 35, and 45% by weight of porcine fat. SBO was introduced to the sausages alternatively in native or pre-emulsified forms, the latter with fish protein isolate (FPI) or Na-caseinate (Nc) as emulsifier. Characteristics of the sausages, including cooking loss, water holding capacity, texture attributes, microstructure, and color, were then determined...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28719898/role-of-mir-155-signal-pathway-in-regulating-podocyte-injury-induced-by-tgf-%C3%AE-1
#15
Xu Lin, Xintng Zhen, Haiting Huang, Haohao Wu, Yanwu You, Pengwei Guo, Xiangjun Gu, Fafen Yang
BACKGROUND/AIMS: Transforming growth factor beta 1 (TGF-β1) plays a critical role in the pathogenesis of glomerulosclerosis. The purpose of this study was to examine the effects of inhibition of miR-155 on podocyte injury induced by TGF-β1 and to determine further molecular mediators involved in the effects of miR-155. METHODS: Conditionally immortalized podocytes were cultured in vitro and they were divided into four groups: control; TGF-β1 treatment; TGF-β1 with miR-155 knockdown [using antisense oligonucleotides against miR-155 (ASO-miR-155)] and TGF-β1 with negative control antisense oligonucleotides (ASO-NC)...
July 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28719422/polarity-independent-effects-of-transcranial-direct-current-stimulation-over-the-bilateral-opercular-somatosensory-region-a-magnetoencephalography-study
#16
Kei Nakagawa, Soichiro Koyama, Koji Inui, Satoshi Tanaka, Ryusuke Kakigi, Norihiro Sadato
The opercular somatosensory region (OP) plays an indispensable role in pain perception. In the present study, we investigated the neurophysiological effects of transcranial direct current stimulation (tDCS) over the OP. Somatosensory-evoked magnetic fields following noxious intraepidermal electrical stimulation to the left index finger (pain-SEFs) were recorded before and after tDCS with a single-blind, sham-controlled, cross-over trial design. Three tDCS conditions of left anodal/right cathodal tDCS, left cathodal/right anodal tDCS (each, 2 mA, 12 min), and sham tDCS (2 mA, 15 s) were applied...
July 17, 2017: Neuroreport
https://www.readbyqxmd.com/read/28719381/detection-of-putative-stem-cell-markers-in-invasive-ductal-carcinoma-of-the-breast-by-immunohistochemistry-does-it-improve-prognostic-predictive-assessments
#17
Rodrigo V Oliveira, Valéria B Souza, Philipi C Souza, Fernando A Soares, José Vassallo, Rafael M Rocha, André A Schenka
INTRODUCTION: Experimental evidences from the last 2 decades supports the existence of a special type of neoplastic cell with stem-like features [cancer stem cell (CSC)] and their role in the pathophysiology and therapeutic resistance of breast cancer. However, their clinical value in human breast cancer has not been fully determined. MATERIALS AND METHODS: An immunohistochemistry panel of 10 putative CSC markers (CD34, C-KIT, CD10, SOX-2, OCT 3/4, p63, CD24, CD44, CD133, and ESA/EPCAM) was applied to 74 cases of breast cancer, followed in a Regional Cancer Center of Minas Gerais State, Brazil, from 2004 to 2006...
July 17, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28719380/comparison-of-different-antibody-clones-for-immunohistochemistry-detection-of-programmed-cell-death-ligand-1-pd-l1-on-non-small-cell-lung-carcinoma
#18
Edwin R Parra, Pamela Villalobos, Barbara Mino, Jaime Rodriguez-Canales
Programmed cell death ligand 1 (PD-L1) is a major immune checkpoint protein that mediates antitumor immune suppression and response. Preliminary data suggest that its detection using immunohistochemistry (IHC) in formalin-fixed and paraffin-embedded tissues may predict clinical response to PD-1/PD-L1 therapy. In diagnostic pathology, it is essential to count with a validated IHC that can reliably detect PD-L1-positive cases. The present study was conducted to compare and validate different PD-L1 commercial clones and identify which ones can be reliably used by surgical pathologist to detect PD-L1 expression in human cancer tissues...
July 17, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28719182/atomic-white-out-enabling-atomic-circuitry-through-mechanically-induced-bonding-of-single-hydrogen-atoms-to-a-silicon-surface
#19
Taleana R Huff, Hatem Labidi, Mohammad Rashidi, Mohammad Koleini, Roshan Achal, Mark H Salomons, Robert A Wolkow
We report the mechanically induced formation of a silicon-hydrogen covalent bond and its application in engineering nanoelectronic devices. We show that using the tip of a noncontact atomic force microscope (NC-AFM), a single hydrogen atom could be vertically manipulated. When applying a localized electronic excitation, a single hydrogen atom is desorbed from the hydrogen-passivated surface and can be transferred to the tip apex, as evidenced from a unique signature in frequency shift curves. In the absence of tunnel electrons and electric field in the scanning probe microscope junction at 0 V, the hydrogen atom at the tip apex is brought very close to a silicon dangling bond, inducing the mechanical formation of a silicon-hydrogen covalent bond and the passivation of the dangling bond...
July 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28716165/frontal-assessment-battery-in-parkinson-s-disease-validity-and-morphological-correlates
#20
Ondrej Bezdicek, Filip Růžička, Adela Fendrych Mazancova, Jan Roth, Pavel Dušek, Karsten Mueller, Evžen Růžička, Robert Jech
OBJECTIVES: Executive dysfunction is a common feature in Parkinson's disease (PD). However, there is a lack of brief validated instruments for executive dysfunction in PD. METHODS: The aim of the present study was to assess the relation of Frontal Assessment Battery (FAB) scores to age and education, to verify the utility of FAB in the evaluation of executive dysfunction in PD and to differentiate between controls (n=41), PD patients with normal cognition (PD-NC; n=41; Hoehn and Yahr stages 2-3) and PD with mild cognitive impairment (PD-MCI; n=32; Hoehn and Yahr stages 2-3)...
July 18, 2017: Journal of the International Neuropsychological Society: JINS
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