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https://www.readbyqxmd.com/read/28544466/simultaneous-imaging-of-endogenous-survivin-mrna-and-on-demand-drug-release-in-live-cells-by-using-a-mesoporous-silica-nanoquencher
#1
Peiyan Yuan, Xin Mao, Kok Chan Chong, Jiaqi Fu, Sijun Pan, Shuizhu Wu, Changmin Yu, Shao Q Yao
The design of multifunctional drug delivery systems capable of simultaneous target detection, imaging, and therapeutics in live mammalian cells is critical for biomedical research. In this study, by using mesoporous silica nanoparticles (MSNs) chemically modified with a small-molecule dark quencher, followed by sequential drug encapsulation, MSN capping with a dye-labeled antisense oligonucleotide, and bioorthogonal surface modification with cell-penetrating poly(disulfide)s, the authors have successfully developed the first mesoporous silica nanoquencher (qMSN), characterized by high drug-loading and endocytosis-independent cell uptake, which is able to quantitatively image endogenous survivin mRNA and release the loaded drug in a manner that depends on the survivin expression level in tumor cells...
May 24, 2017: Small
https://www.readbyqxmd.com/read/28543360/relationship-between-the-uplc-q-tof-ms-fingerprinted-constituents-from-daphne-genkwa-and-their-anti-inflammatory-anti-oxidant-activities
#2
Wen-Juan Du, Jun Ji, Ling Wang, Xin-Yi Lan, Jia Li, Jun-Qiu Lei, Xin He, Chun-Feng Zhang, Wen-Ze Huang, Zhen-Zhong Wang, Wei Xiao, Chong-Zhi Wang, Chun-Su Yuan
Daphne genkwa Sieb.et Zucc. is a well-known medicinal plant. This study was designed to apply the ultra-high performance liquid chromatography (UPLC) system to establish a quality control method of Daphne genkwa. Data revealed that there were fifteen common peaks in ten batches of D. genkwa Sieb. Et Zucc.(Thymelaeaceae) from different provinces of China. On this basis, the fingerprint chromatogram was established to provide references for quality control. Afterwards, the chemical constitutions of these common peaks were analyzed using the UPLC-Q-TOF-MS system and nine of them were identified primarily...
May 22, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28542176/measuring-personal-beliefs-and-perceived-norms-about-intimate-partner-violence-population-based-survey-experiment-in-rural-uganda
#3
Alexander C Tsai, Bernard Kakuhikire, Jessica M Perkins, Dagmar Vořechovská, Amy Q McDonough, Elizabeth L Ogburn, Jordan M Downey, David R Bangsberg
BACKGROUND: Demographic and Health Surveys (DHS) conducted throughout sub-Saharan Africa indicate there is widespread acceptance of intimate partner violence, contributing to an adverse health risk environment for women. While qualitative studies suggest important limitations in the accuracy of the DHS methods used to elicit attitudes toward intimate partner violence, to date there has been little experimental evidence from sub-Saharan Africa that can be brought to bear on this issue...
May 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28539600/superb-electromagnetic-wave-absorbing-composites-based-on-large-scale-graphene-and-carbon-nanotube-films
#4
Jinsong Li, Weibang Lu, Jonghwan Suhr, Hang Chen, John Q Xiao, Tsu-Wei Chou
Graphene has sparked extensive research interest for its excellent physical properties and its unique potential for application in absorption of electromagnetic waves. However, the processing of stable large-scale graphene and magnetic particles on a micrometer-thick conductive support is a formidable challenge for achieving high reflection loss and impedance matching between the absorber and free space. Herein, a novel and simple approach for the processing of a CNT film-Fe3O4-large scale graphene composite is studied...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28538838/relationship-between-matrix-metalloproteinases-and-the-occurrence-and-development-of-ovarian-cancer
#5
Y Zhang, Q Chen
Ovarian cancer is one of the most malignant genital cancers, with a high mortality rate. Many researchers have suggested that matrix metalloproteinases (MMPs) have remarkably high expression in ovarian cancer tissues. MMPs are considered to be related to the occurrence, development, invasion and metastasis of ovarian cancer. Moreover, some studies have discovered that the unbalance between MMPs and tissue inhibitor of metalloproteinases (TIMPs) are associated with the malignant phenotype of tumors. This review summarizes the latest research progress of MMPs in ovarian cancer...
May 18, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28538757/brazilian-cross-cultural-adaptation-and-validation-of-the-list-of-threatening-events-questionnaire-lte-q
#6
Patrícia B de Abreu, Hugo Cogo-Moreira, Regina A Pose, Ronaldo Laranjeira, Raul Caetano, Carolina M Gaya, Clarice S Madruga
Objective: To perform a construct validation of the List of Threatening Events Questionnaire (LTE-Q), as well as convergence validation by identifying its association with drug use in a sample of the Brazilian population. Methods: This is a secondary analysis of the Second Brazilian National Alcohol and Drugs Survey (II BNADS), which used a cross-cultural adaptation of the LTE-Q in a probabilistic sample of 4,607 participants aged 14 years and older. Latent class analysis was used to validate the latent trait adversity (which considered the number of events from the list of 12 item in the LTE experienced by the respondent in the previous year) and logistic regression was performed to find its association with binge drinking and cocaine use...
May 22, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28538363/the-effect-of-alpha-linolenic-acid-on-glycemic-control-in-individuals-with-type-2-diabetes-a-systematic-review-and-meta-analysis-of-randomized-controlled-clinical-trials
#7
Elena Jovanovski, Dandan Li, Hoang Vi Thanh Ho, Vladimir Djedovic, Any de Castro Ruiz Marques, Esra Shishtar, Sonia Blanco Mejia, John L Sievenpiper, Russell J de Souza, Lea Duvnjak, Vladimir Vuksan
BACKGROUND: Polyunsaturated fats (PUFAs) have been shown to reduce type 2 diabetes (T2DM) risk and improve insulin responsiveness in T2DM subjects, but whether the plant sources of omega-3 PUFA (alpha-linolenic acid [ALA]) have an effect on glycemic control requires further investigation. METHODS: The parameters of interest were glycated hemoglobin (HbA1c), fasting blood glucose (FBG), fasting blood insulin (FBI), homeostatic model assessment for insulin resistance (HOMA-IR), fructosamine, and glycated albumin...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28537658/research-on-the-relationship-between-artesunate-and-raji-cell-autophagy-and-apoptosis-of-burkitt-s-lymphoma-and-its-mechanism
#8
Z-C Wang, Y Liu, H Wang, Q-K Han, C Lu
OBJECTIVE: To investigate the effects of Artesunate (ART) on the Raji cell proliferation, apoptosis and autophagy with Raji cells of Burkitt's lymphoma as the objects of study, and to investigate the anti-tumor mechanism of ART. MATERIALS AND METHODS: Morphological examinations of apoptotic and autophagy were performed. MTT assay was used to detect the cell proliferation after ART treatment. The changes in cell apoptosis and cell cycle were detected by flow cytometer...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28536058/how-important-are-the-influencing-factors-to-the-decision-on-whether-to-provide-seafood-in-infant-and-young-child-feeding
#9
Sharon A Carstairs, Debbi Marais, Leone C A Craig, Kirsty Kiezebrink
Seafood is recommended as part of a healthy, balanced introductory diet however, consumption rates are low in young children. Research has previously investigated the influences to seafood consumption in consumers and non-consumers however the importance of these factors in mothers' decisions on whether to provide seafood for their child during the early years is unknown. This study aimed to measure the importance of factors that influence mothers' decisions on providing seafood for their child during infant and young child feeding (six months to four years)...
May 20, 2017: Appetite
https://www.readbyqxmd.com/read/28535862/effects-of-water-bottle-materials-and-filtration-on-bisphenol-a-content-in-laboratory-animal-drinking-water
#10
Jennifer A Honeycutt, Jenny Q T Nguyen, Amanda C Kentner, Heather C Brenhouse
Bisphenol A (BPA) is widely used in the polycarbonate plastics and epoxy resins that are found in laboratory animal husbandry materials including cages and water bottles. Concerns about BPA exposure in humans has led to investigations that suggest physiologic health risks including disruptions to the endocrine system and CNS. However, the extent of exposure of laboratory animals to BPA in drinking water is unclear. In the first study, we compared the amount of BPA contamination in water stored in plastic bottles used in research settings with that in glass bottles...
May 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28533893/expression-of-pattern-recognition-receptor-genes-and-mortality-in-patients-with-colorectal-adenocarcinoma
#11
Kathryn E Royse, Liang Chen, David H Berger, Michael M Ittmann, Hashem B El-Serag, Courtney J Balentine, David Y Graham, Peter A Richardson, Rolando E Rumbaut, Xiaoyun Shen, Donna L White, Li Jiao
Toll-like receptors (TLRs) and the receptor for advanced glycation end products (AGER) are pattern recognition receptors that regulate intestinal inflammatory homeostasis. However, their relevance in colorectal cancer (CRC) prognosis is unclear. We investigated expression of TLRs, AGER, and interacting proteins in association with CRC mortality in a retrospective cohort study of 65 males diagnosed with primary resectable CRC between 2002 and 2009. Multiplex quantitative nuclease protection assay was used to quantify the expression of 19 genes in archived tissues of tumor and paired adjacent normal mucosa...
2017: International Journal of Molecular Epidemiology and Genetics
https://www.readbyqxmd.com/read/28529078/hcsgd-an-integrated-database-of-human-cellular-senescence-genes
#12
Qiongye Dong, Hongqing Han, Xuehui Liu, Lei Wei, Wei Zhang, Zhen Zhao, Michael Q Zhang, Xiaowo Wang
Cellular senescence is an irreversible cell cycle arrest program in response to various exogenous and endogenous stimuli like telomere dysfunction and DNA damage. It has been widely accepted as an anti-tumor program and is also found closely related to embryo development, tissue repair, organismal aging and age-related degenerative diseases. In the past decades, numerous efforts have been made to uncover the gene regulatory mechanisms of cellular senescence. There is a strong demand to integrate these data from various resources into one open platform...
April 29, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28528527/health-literacy-and-associated-factors-among-hmong-american-immigrants-addressing-the-health-disparities
#13
Belle P Khuu, Hee Y Lee, Anne Q Zhou
Hmong Americans face a disproportionate health burden ranging from the high prevalence of diabetes to depressive disorders. Little research attention has been paid toward exploring contributing factors to this disparity. As such, the present study seeks to fill the gap in the literature by examining the health literacy levels in Hmong Americans and its associated factors. The present study employed Andersen's behavioral model of health service as the theoretical framework. A cross-sectional survey research design was used and information was gathered from 168 Hmong American immigrants...
May 20, 2017: Journal of Community Health
https://www.readbyqxmd.com/read/28528329/the-interrater-reliability-of-the-autism-diagnostic-interview-revised-adi-r-in-clinical-settings
#14
Eric Zander, Charlotte Willfors, Steve Berggren, Christina Coco, Anette Holm, Ida Jifält, Renata Kosieradzki, Jenny Linder, Viviann Nordin, Karin Olafsdottir, Sven Bölte
BACKGROUND: The Autism Diagnostic Interview-Revised (ADI-R) is considered a first choice assessment tool in autism spectrum disorder. Nevertheless, despite its wide use in psychiatric practice and recommendations by various clinical guidelines, its interrater reliability has predominantly been confirmed in research settings by specially trained, research reliability interviewers. The reliability of ADI-R assessments among clinicians has not yet been established. Therefore, this study examined the spontaneous interrater reliability of the ADI-R in a naturalistic clinical multicenter setting...
May 20, 2017: Psychopathology
https://www.readbyqxmd.com/read/28528218/laboratory-studies-of-ultrasonic-wave-response-of-fractures-with-different-lengths-anisotropy-characteristics-and-coda-analysis
#15
D Wang, S L Qu, Q Zhao, X Y Yin, F Zhou
Ultrasonic wave propagation in a synthetic medium with different scale fractures is investigated through the physics modeling research. The experiment model consisting of two layers, the first layer is divided into four fractured blocks with a constant fracture density but different dimension and a block without fractures as the reference region. The velocity and reflected amplitude of wave derived from the wide azimuth data processing are anisotropic due to the fractured layer. Coda wave characteristics versus offset and azimuth are obviously different for varying fracture scales...
May 13, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28524153/transcriptome-analysis-of-mirna-lncrna-mrna-interactions-in-the-malignant-transformation-process-of-gastric-cancer-initiation
#16
Y Mao, R Liu, H Zhou, S Yin, Q Zhao, X Ding, H Wang
Gastric cancer is a common heterogeneous malignancy that is pathologically characterized by the development of chronic atrophic gastritis and dysplasia of the epithelium. The pathogenic mechanisms at the molecular level are completely unclear. In the present study, we first address the expression network and miRNA-lncRNA-mRNA interaction in the malignant transformation process from normal mucosa and atrophic gastritis to a tumor. First, the long non-coding RNA (lncRNA), micro RNA (miRNA) and messenger RNA (mRNA) expression profiles of normal gastric mucosa, atrophic gastritis, gastric cancer and the peri-tumor tissues were analyzed using microarrays...
May 19, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28521603/in-silico-binding-mechanism-prediction-of-benzimidazole-based-corticotropin-releasing-factor-1-receptor-antagonists-by-quantitative-structure-activity-relationship-molecular-docking-and-pharmacokinetic-parameters-calculation
#17
Neeraj Kumar, Shashank Shekhar Mishra, Chandra Shekhar Sharma, Hamendra Pratap Singh, Sourav Kalra
Despite the various research efforts towards the treatment of stress related disorders, the drug has not yet launched last 20 years. Corticotropin releasing factor-1 receptor antagonists have been point of great interest in stress related disorders. In the present study, we have selected benzazole scaffold based compounds as corticotropin releasing factor-1 antagonists and performed 2D and 3D QSAR studies to identify the structural features to elucidating the binding mechanism prediction. The best 2D QSAR model was obtained through multiple linear regression method with r(2) value of 0...
May 19, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28520985/warning-statements-and-safety-practices-among-manufacturers-and-distributors-of-electronic-cigarette-liquids-in-the-united-states
#18
Pebbles Fagan, Pallav Pokhrel, Thaddeus A Herzog, Mignonne C Guy, Kari-Lyn K Sakuma, Dennis R Trinidad, Kevin Cassel, Dorothy Jorgensen, Tania Lynch, Jamie Q Felicitas-Perkins, Sherilyn Palafox, Faith Hamamura, Sarah Maloney, Kaylah Degree, Kymberle Sterling, Eric Moolchan, Mark S Clanton, Thomas Eissenberg
Introduction.: Prior to the Food and Drug Administration's (FDA) regulation of electronic cigarettes and warning statements related to nicotine addiction, there was no critical examination of manufacturer/distributor voluntary practices that could potentially inform FDA actions aimed to protect consumers. This study examined the content of warning statements and safety characteristics of electronic cigarette liquid bottles using a national sample. Methods.: Research staff randomly selected four electronic cigarette liquid manufacturers/distributors from four U...
May 18, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28520506/urinary-nanovesicles-captured-by-lectins-or-antibodies-demonstrate-variations-in-size-and-surface-glycosylation-profile
#19
Jared Q Gerlach, Ciaran M Maguire, Anja Krüger, Lokesh Joshi, Adriele Prina-Mello, Matthew D Griffin
AIM: The use of carbohydrate-binding proteins (lectins) to isolate urinary extracellular vesicles (uEVs) was investigated and the captured subpopulations were characterized. METHODS: Pooled uEVs from multiple healthy donors were exposed to lectin-conjugated or antibody-conjugated beads. Recovered uEVs were evaluated by protein estimation, transmission electron microscopy, nanoparticle tracking analysis and lectin microarray profiling. RESULTS: uEVs isolated by lectin- and antibody-based affinity capture exhibited distinct variations in size and surface content...
May 18, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28514954/needle-exchange-programs-for-the-prevention-of-hepatitis-c-virus-infection-in-people-who-inject-drugs-a-systematic-review-with-meta-analysis
#20
Stephen M Davis, Shay Daily, Alfgeir L Kristjansson, George A Kelley, Keith Zullig, Adam Baus, Danielle Davidov, Melanie Fisher
BACKGROUND: Previous research on the effectiveness of needle exchange programs (NEP) in preventing hepatitis C virus (HCV) in people who inject drugs (PWID) has shown mixed findings. The purpose of this study was to use the meta-analytic approach to examine the association between NEP use and HCV prevention in PWIDs. METHODS: Study inclusion criteria were (1) observational studies, (2) PWIDs, (3) NEP use, (4) HCV status ascertained by serological testing, (5) studies published in any language since January 1, 1989, and (6) data available for measures of association...
May 17, 2017: Harm Reduction Journal
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